CN103743597B - Mouth of pipe reducing plug-in type sampling instrument - Google Patents
Mouth of pipe reducing plug-in type sampling instrument Download PDFInfo
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- CN103743597B CN103743597B CN201410042397.0A CN201410042397A CN103743597B CN 103743597 B CN103743597 B CN 103743597B CN 201410042397 A CN201410042397 A CN 201410042397A CN 103743597 B CN103743597 B CN 103743597B
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Abstract
The present invention relates to a kind of mouth of pipe reducing plug-in type sampling instrument, its structure comprises: accept the pollution water sample of pumping and pollution water sample carried out to the current stabilization separator tube of current stabilization conveying, the pump line bindiny mechanism that pump line carries out being connected is exported with pollution water sample, for regulating the shunting pressure regulator valve of pollution water sample water flow pressure, detect the tensimeter of water flow pressure, pollution water sample from current stabilization separator tube under streamlined water delivering orifice guides out laminar condition to carry out the sampling flexible pipe of water sampling, and regulates the concentric flow regulator gathering water sample uninterrupted.The present invention changes the composition of original Organic Pollution water sample acquisition device, structure and principle of work, have volume little, lightweight, applied widely, be easy to carry, easy for installation, simple to operate, use safety, the feature such as pollution section of avoiding sample in gatherer process, improve the fidelity of collected specimens, reduce the acquisition cost of sample, ensure that the safety of personnel, equipment, improve the universality of sampling instrument.
Description
Technical field
The present invention relates to a kind of harvester of the water sample containing volatilization, half volatile material, specifically a kind of mouth of pipe reducing plug-in type sampling instrument.
Background technology
Suffer the water sample of Organic Pollution, due to the singularity that it contains volatilization, half volatile material, the collection of its sample is different to the acquisition method of other water sample.
At present, the acquisition method of conventional Organic Pollution water sample is at the solid fire hose of the pump line mouth place larynx banding extracting pollution water sample, then by mode collected specimens that four-way is shunted.Sample unit used mainly comprises sample collection four-way, four-way shunt, has the fire hose of lining, larynx hoop, large fittings, straight pipe, connect snap ring, tensimeter, spigot-and-socket adapter tower seat, pressure regulator valve, venting valve, transparent pressure-resistant plastic flexible pipe, flattening formula flow regulator and stainless-steel tube etc. soon, first to carry out assembling and the in-site installation of sample collecting apparatus during sampling, assemble and install kit used and consumptive material comprises screwdriver, pipe wrench, spanner, raw material band, PVC glue, angle grinding machine etc.
The assembling mode of sample collecting apparatus is: the port one of sample collection four-way adopts inserted type quick coupling to connect with four-way shunt; The port two-way of sample collection four-way crosses screwed connection tensimeter; Screwed connection spigot-and-socket adapter tower seat is crossed in the port threeway of sample collection four-way, and the other end of spigot-and-socket adapter tower seat connects one end of transparent plastic hose, outside solid with larynx banding; Transparent plastic hose is sleeved in flattening formula flow regulator, and other end larynx hoop is fastened on one end of stainless-steel tube; The port four-way of sample collection four-way crosses screwed connection spigot-and-socket adapter tower seat, and the other end of spigot-and-socket adapter tower seat connects one end of transparent plastic hose, outside solid with larynx banding; The other end larynx hoop of transparent plastic hose is fastened on one end of spigot-and-socket adapter tower seat, and the other end of spigot-and-socket adapter tower seat is by screwed connection pressure regulator valve.
The mode of operation of water sampling is: the current extracted in the pump line of pollution water sample are entered in sampling bottle by fire hose, four-way shunt, sample collection four-way, transparent pressure-resistant plastic flexible pipe and stainless-steel tube successively.When carrying out sample collection, regulate the discharge of venting valve and pressure regulator valve successively, make manometric reading be 0.25MPa; Regulating the opening degree of transparent pressure-resistant plastic flexible pipe by flattening formula flow regulator, making the aquifer yield of stainless-steel tube be respectively 4ml/s(for the pollution water sample containing half volatile material) and 2ml/s(for the pollution water sample containing volatile matter).After pollution water sample fills sampling bottle, be tamping bottleneck, be inverted micro-striking, in bottle, bubble-free produces, and namely completes the sample collection of pollution water sample.
Traditional acquisition mode Problems existing of Organic Pollution water sample is:
(1) fire hose used in sample collecting apparatus, transparent pressure-resistant plastic flexible pipe, raw material band etc. are contaminated samples easily, makes sample distortion; Particularly in initial use procedure several times, the objectionable constituent of material therefor release can produce a very large impact the quality of sample, contaminated samples.
(2) parts of sample collecting apparatus are many, and form complicated, general assembly (TW) is greater than 80kg, bulky, carries inconvenience.
(3) Assembling program is complicated, and complex operation is consuming time longer.Section components adopts American Standard, is unfavorable for connection each other, operation inconvenience.
(4) sample collection four-way and sample flow through pipeline turning round and reducing position easily produce cavitation, when the vacuum tightness in air pocket is greater than the saturated vapor pressure of some volatile matter in water or half volatile material, the spilling of these volatility or half volatile material can be caused to scatter and disappear, make sample distortion.
(5) water flow adopts " flattening formula " flow regulator to control, during adjust flux, the streamline bundle of water gradually becomes " flat " shape by " cylinder " shape, change the shape of streamline bundle, add the probability of intermolecular mutual collision, make the probability increase of the volatilization in Organic Pollution water sample, the precipitation of half volatile material.
(6) when pump head or power larger time, due to the reacting force of mouth of pipe water outlet, the venting valve being arranged on fire hose head can be caused to swing, as controlled loosely, can produce to clash into operating personnel and surrounding objects and threaten.
(7) maximum specification of the suction pump mouth of pipe that sample collecting apparatus can dock is DN100, scene is greater than to the pump line of this specification, then can not carries out sampling operation because docking.
(8) aquifer yield of the terminal stainless-steel tube of raw sample harvester is too little, sample collection overlong time, make the duration of contact of water sample and air longer, so both easily made the volatilization in water sample, half volatile material scatter and disappear, easily make again the reducing substances in water sample oxidized, cause sample distortion.
For water pollution survey and appraisal, the collection of sample has the effect of " taking over from the past and setting a new course for the future ".The height of sample fidelity directly has influence on the judgment accuracy of field investigation work in early stage and the authenticity of later stage indoor sample analysis result, significant to the degree and scope correctly evaluating water pollutions.
Sample error is too large, causes evaluation result and the diametrically opposite conclusion of actual conditions sometimes.If it is lost more that sample collection process makes the polluter in sample overflow, cause indoor detected value on the low side compared with actual value, just likely suffering contaminated waters be evaluated as uncontaminated or pollute light waters, pollution can not get paying attention to, and continues on for producing and life, finally makes pollution level continue to expand, directly affect the quality of life of the people, drink for the production of, life for a long time, cause people's body damage, directly affect the sound development of national economy.
In sample collection process, water sample be subject to sampling instrument material improper use and in the sample caused polluter content increase, make indoor detected value higher than actual value, just likely divided into polluted or the region of heavy contamination polluting or suffering to pollute lighter region, waste treatment cost on the one hand, on the other hand the mood of the masses ignorant of the fact is affected, is unfavorable for the stable of society.
Summary of the invention
Object of the present invention is just to provide a kind of mouth of pipe reducing plug-in type sampling instrument being convenient for carrying, assembling and operating, and to overcome the deficiency that existing sample collecting apparatus exists, reduces the distortion of water sample to greatest extent, improves universality and the security of sampling instrument.
The present invention is achieved in that a kind of mouth of pipe reducing plug-in type sampling instrument, comprising:
Current stabilization separator tube, is the cylindrical tube of both ends open, is shaped with outer convex edge in body upper port, tube wall has streamlined water delivering orifice, for accepting the pollution water sample of pumping and carrying out current stabilization conveying to pollution water sample;
Pump line bindiny mechanism, is arranged in the upper port of described current stabilization separator tube, exports being fixedly connected with of pump line for realizing with pollution water sample;
Shunting pressure regulator valve, is arranged in the lower port of described current stabilization separator tube, for the water flow pressure of pollution water sample in regulating flow-stabilizing separator tube;
Tensimeter, is arranged on the tube wall of described current stabilization separator tube, for detecting the water flow pressure of pollution water sample in current stabilization separator tube;
Sampling flexible pipe, is connected in the external port of described streamlined water delivering orifice, for guiding out pollution water sample under laminar condition to carry out water sampling from described current stabilization separator tube; And
Concentric flow regulator, is socketed on described sampling flexible pipe, for regulating the uninterrupted gathering water sample.
Described pump line bindiny mechanism comprises:
Adapter tower seat, be made up of one section of standpipe and the Circular Plate being connected to described lower riser end mouth, outer convex edge is shaped with in the upper port of described standpipe, the external diameter of described Circular Plate is identical with the upper end external diameter of described current stabilization separator tube, to hide the upper port of described current stabilization separator tube, the internal diameter of described standpipe exports the external diameter of pump line slightly larger than pollution water sample, coordinate to export pump line grafting with pollution water sample;
The large pressure cap of annulus, its periphery has the axial pass trough of some interlocking fastening screws;
Large sealing packing ring, liner is between the upper port and the described Circular Plate of described adapter tower seat of described current stabilization separator tube;
Big ear plate, is arranged on the lateral wall of described current stabilization separator tube, as the web member being fixedly connected with the large pressure cap of described annulus;
Small sealing ring, exports pump line liner at the upper port place of the described standpipe of described adapter tower seat for being socketed pollution water sample;
The little pressure cap of annulus, for the described small sealing ring be socketed on pollution water sample output pump line being crimped on the upper port place of described standpipe, its periphery has the axial pass trough of some interlocking fastening screws;
Small ear plate, is arranged on the lateral wall of the described standpipe of described adapter tower seat, as the web member being fixedly connected with the little pressure cap of described annulus; And
Radial type fastening screw, is arranged between the large pressure cap of described annulus and described big ear plate, by with clamp nut coordinate the upper port place large for described annulus pressure cap being fastened on described current stabilization separator tube; Or be arranged between the little pressure cap of described annulus and described small ear plate, by with clamp nut coordinate the upper port place little for described annulus pressure cap being fastened on described standpipe.
Described concentric flow regulator has axial core bore in a staight shank holding rod, described sampling flexible pipe is through the described core bore of described staight shank holding rod, one end of described holding rod is provided with rotation euphroe, the governor motion of described rotation euphroe is fixed with fastening rope, and described fastening rope is embedded in the locating groove outputed in described holding rod end after enclosing around described sampling flexible pipe one.
The adapter tower seat used in the present invention becomes group configuration, namely each adapter tower seat is provided with the Circular Plate that external diameter is identical, internal diameter is different, the caliber of the standpipe that each Circular Plate is welded is different, and become array configuration, so just can export pump line according to the pollution water sample of various different tube diameters, select the adapter tower seat of correspondingly-sized, realize the connection that sampling instrument of the present invention and pollution water sample export the diameter adjustable of pump line.
Described shunting pressure regulator valve is that be connected on an axis can the circular valve plate of current stabilization separator tube lower port described in shutoff, described axis is through the interface on described current stabilization separator tube tube wall, in its inner clamping blind hole inserted on described current stabilization separator tube tube wall, there is handle in the exposed junction cross-under of described axis, in described interface, be sealed with cushion rubber and plug.
Described rotation euphroe is provided with in the upper end of described holding rod axially to deflect away from outside core bore and cylinder seat opposing upper and lower and vertical shaft seat, and the top of described cylinder seat is opening end, and the base plate of described cylinder seat has jack hole; In described vertical shaft seat, be connected with the rotatable vertical shaft as governor motion, the upper end of described vertical shaft is stretched in described cylinder seat through described jack hole, is provided with the outer tooth bar that a circle is parallel to vertical shaft axial line in the upper end of described vertical shaft; Be provided with to lock in axial sliding in described cylinder seat and put ring, the inner ring surface putting ring is provided with the inner rack that a circle can be meshed with the described outer tooth bar on described vertical shaft at described lock; In described cylinder seat, be provided with top spring, make described lock put ring under normal conditions by overhead to the position mutually concordant with described cylinder seat upper port, with by tooth bar engagement locking described in vertical shaft; The body of rod between described cylinder seat and described vertical shaft seat of described holding rod has horizontal eyelet, and the described fastening rope passed from described eyelet is fixed on described vertical shaft; Prismatic key hole is had in the upper surface of described vertical shaft.
The degree of depth of described key hole is after key is inserted into the end, make described lock put ring pressed down by key and depart from and the engaging of the described outer tooth bar on described vertical shaft, like this, described vertical shaft can rotation under the stirring of key, to strain or to loosen fastening rope, thus the size of the interior circular section at the contained place of adjustment sampling flexible pipe.
The lower end of the described outer tooth bar that described lock is put on the upper end of the described inner rack in ring and described vertical shaft is respectively the pointed shape be convenient to mutual grafting and coordinated.
The profile of tooth that described lock puts the described inner rack in ring and the described outer tooth bar on described vertical shaft is respectively triangle.
Sampling instrument of the present invention effectively improves sample fidelity, is embodied in the following aspects:
(1) material category used is single, not pollution water sample.Sampling instrument of the present invention material used only has 304 stainless steels and two kinds, silica gel, and its physics, stable chemical performance, do not disengage material, avoids improper due to the materials'use of sampling instrument itself in sample collection process and artificial pollution that is that cause.
(2) water delivering orifice on current stabilization separator tube adopts airflow design, and external sampling flexible pipe is made up of a complete transparent withstand voltage silicone tube, connects facility, directly imported sampling bottle by the streamlined water delivering orifice of water sample from current stabilization separator tube in the middle of non junction etc.; Gather the flow direction change of water sample slowly, streamline is steady, avoids the generation of air pocket, thus decreases the spilling of volatilization, half volatile material in sample.
(3) hose discharge of sampling adopts concentric flow regulator to carry out controlling and regulating, and makes the streamline bundle of water remain " cylinder " shape, reduces the probability of volatilization, the precipitation of half volatile material.
(4) Stress control of sampling instrument of the present invention is at 0.18 ~ 0.2MPa, reduces 0.5 ~ 0.7MPa, reduce the pressure gradient of sample collection process compared with the controlled pressure of raw sample harvester; In addition, the internal diameter of the sampling flexible pipe of sampling instrument of the present invention increases to 6mm, it is 2.25 times of sectional area in raw sample harvester rising pipe, improve sample collection efficiency, decrease the duration of contact of water sample and air, avoid volatilizing in sample as far as possible, the scattering and disappearing of half volatile material, reduce reducing substances in water sample and contact the oxidation reaction produced with air, improve the fidelity of sample.
The parts composition of sampling instrument of the present invention is simple, and in-site installation is convenient, and easy and simple to handle, volume is little, lightweight, easy to carry, thus, both decrease personnel needed for sample collection and equipment delivery vehicle, turn improved the day collecting quantity of sample, thus achieve the significantly reduction of sample collection cost.
Sampling instrument of the present invention is not flexible coupling parts, even if run into large lift or powerful water pump, there will not be parts to get rid of the phenomenon of pendulum to surrounding yet, to staff and surrounding objects without any threat, eliminates the potential safety hazard in sampling work.
In addition, all parts of sampling instrument of the present invention all adopt GB, there is wider universality, the pump line mouth specification that can dock is respectively DN150, DN125, DN100, DN80, DN65, DN50, DN40, DN32, DN25, DN20, DN15 totally 11, the maximum pump line specification gathering water sample expands DN150 to, meets the connection needs of the pump line mouth of conventional water pump among the people.
Sampling instrument of the present invention changes the composition of original Organic Pollution water sample acquisition device, structure and principle of work, have volume little, lightweight, applied widely, be easy to carry, easy for installation, simple to operate, use safety, the feature such as pollution section of avoiding sample in gatherer process, improve the fidelity of collected specimens, reduce the acquisition cost of sample, ensure that the safety of personnel, equipment, improve the universality of sampling instrument.
Accompanying drawing explanation
Fig. 1, Fig. 2 are the structural representations of sampling instrument of the present invention two kinds of specific implementations.
Fig. 3 is the structural representation of concentric flow regulator embodiment 1.
Fig. 4 is the structural representation of concentric flow regulator embodiment 1 key used.
Fig. 5 is the external structure schematic diagram of concentric flow regulator embodiment 2.
Fig. 6 is the inner structure schematic diagram of concentric flow regulator embodiment 2.
Fig. 7 is the structural representation of the rotation euphroe of concentric flow regulator embodiment 2.
Fig. 8 is the holding rod end view of concentric flow regulator.
Embodiment
As shown in Figure 1, sampling instrument of the present invention comprises current stabilization separator tube 9, pump line bindiny mechanism, shunting pressure regulator valve, tensimeter 7, part such as sampling flexible pipe 1 and concentric flow regulator etc.
Current stabilization separator tube 9 is the cylindrical tubes of the both ends open made with 304 stainless steels, port is shaped with outer convex edge thereon and is provided with pump line bindiny mechanism, to realize exporting being fixedly connected with of pump line with pollution water sample.The tube wall of current stabilization separator tube 9 has streamlined water delivering orifice 8, and sampling flexible pipe 1 is fixed in the external port of streamlined water delivering orifice 8.Shunting pressure regulator valve is provided with, in order to the port aperture of regulating flow-stabilizing separator tube 9, to adjust the water flow pressure of pollution water sample in body in the lower port of current stabilization separator tube 9.
In Fig. 1, described pump line bindiny mechanism comprises the parts such as adapter tower seat 12, the large pressure cap of annulus 10, large sealing packing ring 11, big ear plate 16, small sealing ring 14, the little pressure cap 13 of annulus and small ear plate 15.Adapter tower seat 12 is also make with 304 stainless steels, is made up of, is also shaped with outer convex edge in the upper port of standpipe one section of standpipe and the Circular Plate being welded on this lower riser end mouth; The lateral wall of standpipe is shaped with at least three small ear plates 15 integratedly, using as the web member being fixedly connected with the little pressure cap of annulus.The external diameter of Circular Plate is identical with the upper end external diameter of current stabilization separator tube 9, so that hide in the upper port of current stabilization separator tube.Standpipe is the serial pipe of internal diameter large about 2mm more corresponding to the series of ducts external diameter of GB, comprise DN125, DN100, DN80, DN65, DN50, DN40, DN32, DN25, DN20, DN15 totally 10 kinds of specifications, adapter tower seat 12 is made to form the configuration of one group of array of sizes, thus can for the difference of scene pump line used, select standpipe caliber adapter tower seat corresponding with it to carry out Assembling, coordinate with the reliable grafting of pump line to realize this sampling instrument.Adapter tower seat 12 blocks in the upper port of current stabilization separator tube 9, large sealing packing ring 11 liner is between the upper port and the Circular Plate of adapter tower seat 12 of current stabilization separator tube 9, and the Circular Plate on adapter tower seat 12 is crimped in the upper port of current stabilization separator tube 9 by the large pressure cap 10 of annulus.The lateral wall of current stabilization separator tube 9 is shaped with at least three big ear plates 16 integratedly, using as the web member being fixedly connected with the large pressure cap 10 of annulus.The disc of the large pressure cap of annulus 10 has some axial pass trough opposing upper and lower with the position of big ear plate, and the upper end thereof of radial type fastening screw 17 is in each groove of the large pressure cap of annulus 10; Big ear plate 16 correspondingly has draw-in groove, is connected to the lower end of radial type fastening screw 17, clamp nut is screwed on the lower dew termination of radial type fastening screw 17 in the bottom surface of big ear plate 16; After being tightened one by one by clamp nut, large for annulus pressure cap 10 can be fastened on the upper port place of current stabilization separator tube 9.Also radial type fastening bolt 17 can be oppositely installed, lower end by radial type fastening bolt 17 is hinged in the draw-in groove on big ear plate 16, the epimere of the groove clamping radial type fastening screw 17 on the large pressure cap 10 of annulus, clamp nut is screwed on the upper dew termination of radial type fastening screw 17 at the end face of the large pressure cap of annulus 10, after tightening each clamp nut one by one, large for annulus pressure cap 10 can be fastened on the upper port place (Fig. 2) of current stabilization separator tube 9.
The grafting that standpipe and the pollution water sample of adapter tower seat 12 export pump line coordinates, and have employed substantially identical to be fixedly connected with mode.In Fig. 1, the small sealing ring 14 of silica gel and the little pressure cap 13 of the annulus of stainless steel are first socketed on pump line, the vertical pipe sleeve of the adapter tower seat 12 on this sampling instrument is connected on pump line port, when pump line end is inserted in the standpipe mouth of pipe, small sealing ring 14 liner can be made at the upper port place of standpipe, less for annulus pressure cap 13 is crimped onto on standpipe; The disc of the little pressure cap of annulus 13 has some axial pass troughs 18 opposing upper and lower with the position of small ear plate, and the upper end thereof of radial type fastening screw 17 is in each groove of the little pressure cap of annulus 13; Small ear plate 15 correspondingly has draw-in groove, is connected to the lower end of radial type fastening screw 17, clamp nut is screwed on the lower dew termination of radial type fastening screw 17 in the bottom surface of small ear plate 15; After being tightened one by one by clamp nut, small sealing ring 14 can be pressed on standpipe upper port place, the inner ring surface of small sealing ring 14 be out of shape, choke pump line outer, realize pump line thus and be connected with the firm of standpipe of adapter tower seat 12.Also radial type fastening bolt 17 can be oppositely installed, lower end by radial type fastening bolt 17 is hinged in the draw-in groove on small ear plate 15, the epimere of the groove 18 clamping radial type fastening screw 17 on the little pressure cap 13 of annulus, clamp nut is screwed on the upper dew termination of radial type fastening screw 17 at the end face of the little pressure cap of annulus 13, after tightening each clamp nut one by one, little for annulus pressure cap 13 can be fastened on standpipe upper port place, realize pump line and be connected (Fig. 2) with the firm of standpipe.
When the diameter of pump line water delivering orifice is DN150, directly pump line and current stabilization separator tube 9 can be carried out socket connection; When pump line water delivering orifice diameter is less than DN150, adapted adapter tower seat 12 pump line and standpipe can be carried out socket connection.
The shunting pressure regulator valve be arranged in current stabilization separator tube 9 lower port can use polytype valves such as ball valve, butterfly valve, stop valve or gate valve.That one shunts pressure regulator valve easily shown in Fig. 1, its structure is on an axis 6, make one section of recessed notch, circular valve plate 5 is rabbeted in this notch, and fixed with screw, the periphery of valve plate 5 can arrange O-ring seal (also can not arrange O-ring seal), valve plate 5 can be fitted with the inwall of current stabilization separator tube 9, with the lower port of shutoff current stabilization separator tube 9.Axis 6 is through the interface on the right side of current stabilization separator tube tube wall, the inner of axis is inserted in the clamping blind hole on the left of current stabilization separator tube tube wall, handle is had in the exposed junction cross-under of axis 6, rotational valve plate 5 is got final product by rotary handle, to adjust the aperture of shunting pressure regulator valve, regulate the water flow pressure of pollution water sample.Cushion rubber (not shown) and plug 4 is sealed with in interface on the right side of tube wall.The adjustment of shunting pressure regulator valve determines according to the instruction of tensimeter 7.
Sampling flexible pipe 1 is the withstand voltage transparent hose made with silica gel, and its one end is connected in the external port of streamlined water delivering orifice 8, and the other end, through concentric flow regulator, is regulated the discharge size gathering water sample by concentric flow regulator.Concentric flow regulator has axial core bore in a staight shank holding rod 3, sampling flexible pipe 1 is through the axial core bore of staight shank holding rod 1, be provided with in the upper end of holding rod 1 and rotate euphroe 2, the extension elongation of the free end after sampling flexible pipe 1 passes holding rod 1 should be no less than 30cm, carries out water sampling operation so that insert in sampling bottle.
Fig. 3 is the first specific implementation of concentric flow regulator.
As shown in Figure 3, this concentric flow regulator has axial core bore in a staight shank holding rod 3, sampling flexible pipe 1 is through the core bore of holding rod 3, the rotation euphroe 2 horizontally rotated is provided with in one end of holding rod 3, the governor motion rotating euphroe 2 is fixed with fastening rope 20, and fastening rope 20 is embedded in the locating groove 301 outputed in holding rod 3 end (Fig. 8) after enclosing around sampling flexible pipe 1 one.
Rotating euphroe 2 is that one end of holding rod 3 is provided with cylinder seat 205 and vertical shaft seat 209, and cylinder seat 205 is relative with vertical shaft seat about 209, and the upper end of cylinder seat 205 is opening end, and the lower surface of cylinder seat 205 has core bore; In vertical shaft seat 209, be connected with vertical shaft 202, the upper end of vertical shaft 202 is stretched in cylinder seat by the core bore on cylinder seat lower surface.The axis parallel of vertical shaft 202 is in the axial line of holding rod 3, and vertical shaft 202 can rotate by opposed axle bed 209.The set-up mode of vertical shaft can be connected with metal ring 208 at the bottom positioning end of vertical shaft 202, after ring set end is inserted the position, hole on vertical shaft seat 209, then shelters from ring set 208 with cover plate 207, vertical shaft 202 is positioned in vertical shaft seat 209.Cover plate 207 is fixed on vertical shaft seat 209, with covers aperture position by securing member.The upper free ends of vertical shaft 202 is arranged in cylinder seat 205, is provided with at the free end of vertical shaft 202 the outer tooth bar that a circle is parallel to vertical shaft axial line.Fastening rope 20 is through after the eyelet holding rod 3 inside core bore, and fixing also solderless wrapped connection is in the exposed length of vertical shaft 202.On the holding rod 3 of cross-under eyelet between cylinder seat and vertical shaft seat.The end face of the free end of vertical shaft 202 has the quadrangular of grafting unlock key or the jack 210 of hexagon.Be provided with to lock in axial sliding in cylinder seat 205 and put ring 201, the sidewall putting ring 201 at lock has notch 203, utilize the screw 204 of cross-under cylinder seat 205 sidewall and lock coordinating of the notch 203 put on ring, lock can be made to put ring 201 can only slide axially and can not rotate in cylinder seat 205.The inner ring surface that ring 201 put by lock is provided with the inner rack that a circle can be meshed with the outer tooth bar on vertical shaft 202.In cylinder seat 205, be provided with spring 206, make lock put ring 201 under normal conditions by overhead to the position mutually concordant with cylinder seat 205 port, with by locking engaging each other of the inner rack put on ring and the outer tooth bar on vertical shaft 202, and by vertical shaft 202 locking firmly.
Put ring 201 moving up and down in process occur that the situation that the increment of inside and outside tooth bar pins mutually occurs for avoiding locking, lower end lock can being put the outer tooth bar on the upper end of inner rack in ring 201 and vertical shaft 202 is made for the pointed shape of triangle etc., respectively so that the mutual grafting of inside and outside tooth bar coordinates.
Lock is put to the unlocking operation of ring 201, by custom-designed unlock key 211(Fig. 4) carry out; To the flow regulation of sampling flexible pipe 1, also operated by unlock key 211.In Fig. 3, unlock key 211 is provided with the inserted link 212 that pushing lock puts the external toroidal ring 213 of ring and the quadrangular of grafting vertical shaft or hexagon.To be plugged in the prismatic jack 210 on vertical shaft 202 after (being inserted into the end) when inserted link 212, external toroidal ring 213 on unlock key 211 pushes in cylinder seat 205 with putting ring 201 by lock, the outer tooth bar locked on the inner rack put on ring and vertical shaft 202 is separated, now, by rotating the handle of unlock key, vertical shaft 202 can be stirred clockwise or rotate counterclockwise, the fastening rope 20 be connected on vertical shaft 202 is made to be tightened up or to loosen, thus to fastening rope around sampling flexible pipe 1 carry out concentric folding and unfolding, the streamline bundle of collection water sample is made to remain " cylinder " shape, thus reduce volatilization, the probability that half volatile material is separated out.
In Fig. 2, the core bore inwall of holding rod 3 can be made the ring groove (relative with the eyelet of cross-under fastening rope) that a degree of depth is about 2mm, to make fastening rope 20 can in embedded groove, freely hoop slides.
Fig. 5-Fig. 7 is the second specific implementation of concentric flow regulator.
As shown in Figure 5, Figure 6, this concentric flow regulator has axial core bore in staight shank holding rod 3, sampling flexible pipe is through the core bore of holding rod 3, the rotation euphroe 2 that facade rotates is provided with in one end of holding rod 3, the governor motion rotating euphroe 2 is fixed with fastening rope 20, and fastening rope 20 is embedded in the locating groove 301 outputed in holding rod 3 end (Fig. 8) after enclosing around sampling flexible pipe 1 one.
As Fig. 5, shown in Fig. 6, rotating euphroe 2 is be connected with seat board 221 in circle with one heart by semi-girder on a side opening of urceolus circle 224, be respectively arranged with opening inner core circle 220 at the medial surface of interior seat board 221 and dial device with the pressure being positioned at opening inner core circle inside, opening inner core circle 220 is provided with the open section of about 120 ° of central angles, the another side opening of urceolus circle 224 is sealed with circular cover 229, cover plate 229 is connected to rotating central shaft 225, the circular cap type thumb wheel 223 of outward opening is connected in the end of central shaft 225, the wheel of thumb wheel 223 is along the periphery face being positioned at opening inner core circle 220, tip surface 230 in a circle axial distribution is provided with along medial surface at the wheel of thumb wheel 223, group beans 222 stirring thumb wheel are evenly equipped with along end face at the wheel of thumb wheel 223, described group of beans 222 protrude from the end face on wheel edge.Urceolus circle 224 is fixed on holding rod 3, and central shaft 225 is horizontally disposed with, and with the axis perpendicular of holding rod 3.Fastening rope 20 is penetrated by the eyelet on urceolus circle 224, fixing also solderless wrapped connection is on central shaft 225, from the lateral opening rotating euphroe 2, beans 222 are stirred with finger, make thumb wheel 223 forward or reverse, be wrapped in the elasticity of the fastening rope 20 on sampling flexible pipe 1 with adjustment, thus reach the object of sampling flexible pipe 1 being carried out to the adjustment of concentric-ring pattern.
It is for locking or loosening thumb wheel that the pressure rotated in euphroe 2 dials device, its structure as shown in Figure 5, comprise two shift forks 227 and the fan-shaped shifting block 226 between two shift forks, one end of two shift forks 227 is hinged on the inwall of opening inner core circle 220 respectively, the other end of two shift forks 227 stretches out the open section of opening inner core circle 220 respectively, and under the stirring of shifting block 226, be connected to described thumb wheel 223 and take turns along on tip surface 230 on medial surface, thumb wheel 223 is locked.The top spring 228 promoting shift fork return is respectively equipped with outside the middle part of two shift forks 227 and between the inwall of opening inner core circle 220.Shifting block 226 is connected to turning handle 231 by coupling shaft, and described turning handle 231 is arranged on the lateral surface of described interior seat board 221.
The principle of work of sampling instrument of the present invention is: the water outlet of pump line mouth directly enters in current stabilization separator tube 9, regulates shunting pressure regulator valve, makes the reading of tensimeter 7 be 0.18 ~ 0.2MPa; Grasp concentric flow regulator, stretching sampling flexible pipe 1, makes its water delivering orifice upward, exceeds the end face 800mm of current stabilization separator tube 9 also in erectility; Slow adjustment concentric flow regulator, makes the water polo face height of sampling flexible pipe 1 water outlet be less than 5mm, and guarantees to lose bubble in the current of sampling flexible pipe 1 inside and water outlet; The water delivering orifice of sampling flexible pipe 1 is slowly inserted in the sampling bottle (sample collection for containing half volatile material) of 2000ml, until distance is about 5 ~ 8mm at the bottom of the sampling water side of flexible pipe 1 and bottle, place motionless, when the water surface is from bottleneck distance about 50mm in bottle, slowly propose sampling flexible pipe 1.Carrying in pipe process, ensureing that the water surface distance in the sampling water delivering orifice of flexible pipe 1 and bottle is not more than 5mm, until sampling bottle fills water sample.Finally tighten bottle cap, be inverted micro-striking, in bottle, bubble-free produces, and namely completes the collecting work of large bottle sample.
When gathering the pollution water sample containing volatile matter, sampling flexible pipe 1 is slowly inserted in sampling bottle (2 40ml), along with the continuous rising of the water surface in bottle, slowly promote sampling flexible pipe 1, carry in pipe process, ensure that water delivering orifice and the water surface distance of sampling flexible pipe 1 are not more than 5mm, until fill water sample, tighten bottle cap, be inverted micro-striking, in bottle, bubble-free produces, and completes sample collection.
Sampling instrument of the present invention also can be used for gathering other water sample.
Claims (6)
1. a mouth of pipe reducing plug-in type sampling instrument, is characterized in that, comprising:
Current stabilization separator tube, is the cylindrical tube of both ends open, is shaped with outer convex edge in body upper port, tube wall has streamlined water delivering orifice, for accepting the pollution water sample of pumping and carrying out current stabilization conveying to pollution water sample;
Pump line bindiny mechanism, is arranged in the upper port of described current stabilization separator tube, exports being fixedly connected with of pump line for realizing with pollution water sample;
Shunting pressure regulator valve, is arranged in the lower port of described current stabilization separator tube, for the water flow pressure of pollution water sample in regulating flow-stabilizing separator tube;
Tensimeter, is arranged on the tube wall of described current stabilization separator tube, for detecting the water flow pressure of pollution water sample in current stabilization separator tube;
Sampling flexible pipe, is connected in the external port of described streamlined water delivering orifice, for guiding out pollution water sample under laminar condition to carry out water sampling from described current stabilization separator tube; And
Concentric flow regulator, is socketed on described sampling flexible pipe, for regulating the uninterrupted gathering water sample;
Described pump line bindiny mechanism comprises:
Adapter tower seat, be made up of one section of standpipe and the Circular Plate being connected to described lower riser end mouth, outer convex edge is shaped with in the upper port of described standpipe, the external diameter of described Circular Plate is identical with the upper end external diameter of described current stabilization separator tube, to hide the upper port of described current stabilization separator tube, the internal diameter of described standpipe exports the external diameter of pump line slightly larger than pollution water sample, coordinate to export pump line grafting with pollution water sample;
The large pressure cap of annulus, its periphery has the axial pass trough of some interlocking fastening screws;
Large sealing packing ring, liner is between the upper port and the described Circular Plate of described adapter tower seat of described current stabilization separator tube;
Big ear plate, is arranged on the lateral wall of described current stabilization separator tube, as the web member being fixedly connected with the large pressure cap of described annulus;
Small sealing ring, exports pump line liner at the upper port place of the described standpipe of described adapter tower seat for being socketed pollution water sample;
The little pressure cap of annulus, for the described small sealing ring be socketed on pollution water sample output pump line being crimped on the upper port place of described standpipe, its periphery has the axial pass trough of some interlocking fastening screws;
Small ear plate, is arranged on the lateral wall of the described standpipe of described adapter tower seat, as the web member being fixedly connected with the little pressure cap of described annulus; And
Radial type fastening screw, is arranged between the large pressure cap of described annulus and described big ear plate, by with clamp nut coordinate the upper port place large for described annulus pressure cap being fastened on described current stabilization separator tube; Or be arranged between the little pressure cap of described annulus and described small ear plate, by with clamp nut coordinate the upper port place little for described annulus pressure cap being fastened on described standpipe;
Described concentric flow regulator has axial core bore in a staight shank holding rod, described sampling flexible pipe is through the described core bore of described staight shank holding rod, one end of described holding rod is provided with rotation euphroe, the governor motion of described rotation euphroe is fixed with fastening rope, and described fastening rope is embedded in the locating groove outputed in described holding rod end after enclosing around described sampling flexible pipe one.
2. mouth of pipe reducing plug-in type sampling instrument according to claim 1, it is characterized in that, described shunting pressure regulator valve is that be connected on an axis can the circular valve plate of current stabilization separator tube lower port described in shutoff, described axis is through the interface on described current stabilization separator tube tube wall, in its inner clamping blind hole inserted on described current stabilization separator tube tube wall, there is handle in the exposed junction cross-under of described axis, in described interface, be sealed with cushion rubber and plug.
3. mouth of pipe reducing plug-in type sampling instrument according to claim 1, it is characterized in that, described rotation euphroe is provided with in the upper end of described holding rod axially to deflect away from outside core bore and cylinder seat opposing upper and lower and vertical shaft seat, the top of described cylinder seat is opening end, and the base plate of described cylinder seat has jack hole; In described vertical shaft seat, be connected with the rotatable vertical shaft as governor motion, the upper end of described vertical shaft is stretched in described cylinder seat through described jack hole, is provided with the outer tooth bar that a circle is parallel to vertical shaft axial line in the upper end of described vertical shaft; Be provided with to lock in axial sliding in described cylinder seat and put ring, the inner ring surface putting ring is provided with the inner rack that a circle can be meshed with the described outer tooth bar on described vertical shaft at described lock; In described cylinder seat, be provided with top spring, make described lock put ring under normal conditions by overhead to the position mutually concordant with described cylinder seat upper port, with by tooth bar engagement locking described in vertical shaft; The body of rod between described cylinder seat and described vertical shaft seat of described holding rod has horizontal eyelet, and the described fastening rope passed from described eyelet is fixed on described vertical shaft; Prismatic key hole is had in the upper surface of described vertical shaft.
4. mouth of pipe reducing plug-in type sampling instrument according to claim 3, it is characterized in that, the degree of depth of described key hole is after key is inserted into the end, makes described lock put ring and is pressed down by key and depart from and the engaging of the described outer tooth bar on described vertical shaft.
5. mouth of pipe reducing plug-in type sampling instrument according to claim 3, is characterized in that, the lower end of the described outer tooth bar that described lock is put on the upper end of the described inner rack in ring and described vertical shaft is respectively the pointed shape be convenient to mutual grafting and coordinated.
6. mouth of pipe reducing plug-in type sampling instrument according to claim 3, is characterized in that, the profile of tooth that described lock puts the described inner rack in ring and the described outer tooth bar on described vertical shaft is respectively triangle.
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| CN201410042397.0A CN103743597B (en) | 2014-01-28 | 2014-01-28 | Mouth of pipe reducing plug-in type sampling instrument |
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| CN201410042397.0A CN103743597B (en) | 2014-01-28 | 2014-01-28 | Mouth of pipe reducing plug-in type sampling instrument |
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| CN103743597B true CN103743597B (en) | 2015-11-04 |
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| US4091677A (en) * | 1976-12-23 | 1978-05-30 | Nichiryo Co., Ltd. | Pipetting apparatus |
| CN201402241Y (en) * | 2009-04-17 | 2010-02-10 | 无锡市华星电力环保修造有限公司 | Measuring and sampling device |
| CN102628840A (en) * | 2012-04-27 | 2012-08-08 | 山东电力研究院 | Apparatus and method for detecting sampling efficiency of volatile organic compounds sampled by charcoal tube needle |
| CN103234778A (en) * | 2013-04-19 | 2013-08-07 | 中国地质科学院水文地质环境地质研究所 | Device for enriching semi-volatile organic compounds in underground water |
| CN203705216U (en) * | 2014-01-28 | 2014-07-09 | 中国地质科学院水文地质环境地质研究所 | Pipe orifice variable-diameter plug-in sampling instrument |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0415827D0 (en) * | 2004-07-15 | 2004-08-18 | Univ Manchester | Liquid sampling |
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- 2014-01-28 CN CN201410042397.0A patent/CN103743597B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4091677A (en) * | 1976-12-23 | 1978-05-30 | Nichiryo Co., Ltd. | Pipetting apparatus |
| CN201402241Y (en) * | 2009-04-17 | 2010-02-10 | 无锡市华星电力环保修造有限公司 | Measuring and sampling device |
| CN102628840A (en) * | 2012-04-27 | 2012-08-08 | 山东电力研究院 | Apparatus and method for detecting sampling efficiency of volatile organic compounds sampled by charcoal tube needle |
| CN103234778A (en) * | 2013-04-19 | 2013-08-07 | 中国地质科学院水文地质环境地质研究所 | Device for enriching semi-volatile organic compounds in underground water |
| CN203705216U (en) * | 2014-01-28 | 2014-07-09 | 中国地质科学院水文地质环境地质研究所 | Pipe orifice variable-diameter plug-in sampling instrument |
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