CN103743599A - Tube orifice diameter variable spliced sampling instrument - Google Patents
Tube orifice diameter variable spliced sampling instrument Download PDFInfo
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- CN103743599A CN103743599A CN201410042399.XA CN201410042399A CN103743599A CN 103743599 A CN103743599 A CN 103743599A CN 201410042399 A CN201410042399 A CN 201410042399A CN 103743599 A CN103743599 A CN 103743599A
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Abstract
The invention relates to a tube orifice diameter variable spliced sampling instrument which structurally comprises a steady flow buffer tube for receiving a pumped polluted water sample and performing steady flow conveying on the polluted water sample, a pump tube connection mechanism connected with a polluted water sample output pump tube, a diversion pressure regulating valve for regulating water flow pressure of the polluted water sample, a pressure gauge for detecting the water flow pressure, a sampling hose leading the polluted water sample under a laminar condition out of the steady flow buffer tube via a streamline water outlet for water sampling, and a concentric flow regulator for regulating a flow rate of the collected water sample. The instrument has the characteristics of small size, light weight, wide application scope, convenience in carrying and mounting, simplicity in operation, safety in use, prevention of a pollution link in a collection process of the sample and the like, improves the fidelity of the collected sample, lowers the collecting cost of the sample, and ensures the safety of personnel and equipment, and the universality of the sampling instrument is improved.
Description
Technical field
The present invention relates to a kind of harvester of the water sample that contains 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 its singularity that 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 to extract the solid fire hose of larynx banding for pump line mouth place of pollution water sample then the mode collected specimens of shunting by four-way.Sample unit used mainly comprises sample collection four-way, four-way shunt, the fire hose that has lining, larynx hoop, big or small pipe adapter, straight pipe, connects snap ring, tensimeter, spigot-and-socket adapter tower seat, pressure regulator valve, venting valve, transparent pressure-resistant plastic flexible pipe soon, flattens formula flow regulator and stainless-steel tube etc., during sampling, first to carry out assembling and on-the-spot installation of sample collecting apparatus, assemble and install kit used and consumptive material and comprise 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 and four-way shunt to join; The port two-way of sample collection four-way is crossed screwed connection tensimeter; The port threeway of sample collection four-way is crossed screwed connection spigot-and-socket and is taken over tower seat, and spigot-and-socket is taken over one end of the other end connection transparent plastic hose of tower seat, outside solid with larynx banding; Transparent plastic hose is sleeved in flattening formula flow regulator, and the other end is fastened on one end of stainless-steel tube with larynx hoop; The port four-way of sample collection four-way is crossed screwed connection spigot-and-socket and is taken over tower seat, and spigot-and-socket is taken over one end of the other end connection transparent plastic hose of tower seat, outside solid with larynx banding; The other end of transparent plastic hose is fastened on larynx hoop one end that spigot-and-socket is taken over tower seat, and spigot-and-socket is taken over the other end of tower seat by screwed connection pressure regulator valve.
The mode of operation of water sampling is: the current in the pump line of extraction pollution water sample enter in sampling bottle by fire hose, four-way shunt, sample collection four-way, transparent pressure-resistant plastic flexible pipe and stainless-steel tube successively.While carrying out sample collection, regulate successively the discharge of venting valve and pressure regulator valve, making manometric reading is 0.25MPa; By flattening formula flow regulator, regulate the opening degree of transparent pressure-resistant plastic flexible pipe, make 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 that contains volatile matter).Pollution water sample is filled after sampling bottle, is tamping bottleneck, is inverted micro-striking, and in bottle, without Bubble formation, completes the sample collection of pollution water sample.
The problem that traditional acquisition mode of Organic Pollution water sample exists is:
(1) fire hose using 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 that material therefor discharges can produce a very large impact the quality of sample, contaminated samples.
(2) parts of sample collecting apparatus are many, form complexity, and general assembly (TW) is greater than 80kg, bulky, carries inconvenience.
(3) Assembling program is complicated, and complex operation is consuming time longer.Part parts adopt American Standard, are unfavorable for connection each other, operation inconvenience.
(4) at flow through turning round of pipeline and reducing position of sample collection four-way and sample, 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, can cause overflowing of these volatility or half volatile material lost, 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, changed the shape of streamline bundle, increased the probability of intermolecular mutual collision, the volatilization in Organic Pollution water sample, the probability that half volatile material is separated out are increased.
(6) when pump head or power are when larger, due to the reacting force of mouth of pipe water outlet, can cause the venting valve that is arranged on fire hose head to swing, as not firm in controlled, can to operating personnel and around object produce to clash into and threaten.
(7) maximum specification of the suction pump mouth of pipe that sample collecting apparatus can dock is DN100, is greater than the pump line of this specification for scene, because docking, can not carry out sampling operation.
(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 volatilization, half volatile material in water sample 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, and degree and scope that correct evaluation water is polluted are significant.
Sample error is too large, causes sometimes the diametrically opposite conclusion of evaluation result and actual conditions.If it is lost more that sample collection process is overflowed the polluter in sample, 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 people's quality of life, for a long time for the production of, life drink, cause people's health impaired, directly affect the sound development of national economy.
In sample collection process, water sample is subject to the improper use of sampling instrument material and polluter increased content in the sample that causes, make indoor detected value higher than actual value, just likely being polluted or suffering to pollute lighter region, divide into and polluted or the region of heavy contamination, waste on the one hand treatment cost, make on the other hand the masses' ignorant of the fact mood be affected, be 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 that is convenient for carrying, assembles and operate, and the deficiency existing to overcome existing sample collecting apparatus, 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, in body upper port, is shaped with external thread, has streamlined water delivering orifice on tube wall, for accepting the pollution water sample of pumping and pollution water sample being carried out to current stabilization conveying;
Pump line bindiny mechanism, is arranged in the upper port of described current stabilization separator tube, for realizing with pollution water sample, exports being fixedly connected with of pump line;
Shunting pressure regulator valve, is arranged in the lower port of described current stabilization separator tube, for the water flow pressure of regulating flow-stabilizing separator tube pollution water sample;
Tensimeter, is arranged on the tube wall of described current stabilization separator tube, for detection of 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 laminar condition from described current stabilization separator tube to carry out water sampling; And
Concentric type flow regulator, is socketed on described sampling flexible pipe, for regulating the uninterrupted that gathers water sample.
Described pump line bindiny mechanism comprises:
Take over tower seat, by one section of standpipe and the Circular Plate that is connected to described standpipe lower port, formed, upper port at described standpipe is shaped with external thread, 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 is slightly larger than the external diameter of pollution water sample output pump line, to peg graft and to coordinate with pollution water sample output pump line;
The large pressure cap of annulus, by with being threaded of described current stabilization separator tube, the described Circular Plate on described adapter tower seat is crimped in the upper port of described current stabilization separator tube;
Large sealing packing ring, liner is between the upper port of described current stabilization separator tube and the described Circular Plate of described adapter tower seat;
Small sealing ring, for being socketed pollution water sample output pump line liner at the upper port place of the described standpipe of described adapter tower seat; And
The little pressure cap of annulus, by being threaded of the described standpipe with on described adapter tower seat, realizing the pollution water sample output pump line being plugged in described standpipe and is connected with the firm of described standpipe.
Described concentric type flow regulator is in a staight shank holding rod, to have axial core hole, described sampling flexible pipe is through the described core hole of described staight shank holding rod, in one end of described holding rod, be provided with rotation euphroe, on the governor motion of described rotation euphroe, be fixed with fastening rope, described fastening rope is embedded in the locating groove of outputing in described holding rod end after enclosing around described sampling flexible pipe one.
The adapter tower seat using in the present invention configures in groups, be that each adapter tower seat is provided with the Circular Plate that external diameter is identical, internal diameter is different, the caliber of the standpipe welding in each Circular Plate is different, and become array configuration, so just can be according to the pollution water sample output pump line of various different tube diameters, select the adapter tower seat of correspondingly-sized, realize being connected of diameter adjustable of sampling instrument of the present invention and pollution water sample output pump line.
Described shunting pressure regulator valve be on an axis, be connected to can shutoff described in the circular valve plate of current stabilization separator tube lower port, described axis is through the interface on described current stabilization separator tube tube wall, in its inner clamping blind hole of inserting on described current stabilization separator tube tube wall, exposed junction cross-under at described axis has handle, is sealed with cushion rubber and plug in described interface.
Described rotation euphroe is in the upper end of described holding rod, to be provided with axially to deflect away from outside, core hole and cylinder seat opposing upper and lower and vertical shaft seat, and the top of described cylinder seat is opening end, on 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; In described cylinder seat, be provided with to lock in axial sliding and put ring, at described lock, put on the inner ring surface of ring and be provided with the inner rack that a circle can be meshed with the described outer tooth bar on described vertical shaft; 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, to mesh vertical shaft described in locking by tooth bar; Described holding rod on the body of rod between described cylinder seat and described vertical shaft seat, have horizontal eyelet, the described fastening rope passing from described eyelet is fixed on described vertical shaft; In the upper surface of described vertical shaft, have prismatic key hole.
The degree of depth of described key hole is to be inserted at key at the end, make described lock put ring by key, pressed down and depart from described vertical shaft on the engagement of described outer tooth bar, 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 upper end of the described inner rack in ring put by described lock and the lower end of the described outer tooth bar on described vertical shaft is respectively the pointed shape of being convenient to the mutual cooperation of pegging graft.
Described lock is put described inner rack in ring and the profile of tooth of the described outer tooth bar on described vertical shaft is respectively triangle.
Sampling instrument of the present invention has effectively improved sample fidelity, is embodied in the following aspects:
(1) material category of using is single, not pollution water sample.Sampling instrument of the present invention material used only has two kinds, 304 stainless steels and silica gel, and its physics, stable chemical performance, do not disengage material, has avoided in sample collection process the improper artificial pollution causing of materials'use due to sampling instrument itself.
(2) water delivering orifice on current stabilization separator tube adopts airflow design, and external sampling flexible pipe is to consist of a complete transparent withstand voltage silicone tube, connects facility in the middle of non junction etc., and water sample is directly imported sampling bottle from the streamlined water delivering orifice of current stabilization separator tube; The flow direction that gathers water sample changes slowly, streamline is steady, has avoided the generation of air pocket, thereby has reduced overflowing of volatilization, half volatile material in sample.
(3) sampling hose discharge adopts concentric type flow regulator control and regulate, and makes the streamline bundle of water remain " cylinder " shape, has reduced the probability that volatilization, half volatile material are separated out.
(4) pressure of sampling instrument of the present invention is controlled at 0.18～0.2MPa, compared with the controlled pressure of raw sample harvester, reduces 0.5～0.7MPa, has reduced the pressure gradient of sample collection process; In addition, the internal diameter of the sampling flexible pipe of sampling instrument of the present invention increases to 6mm, 2.25 times of sectional area in raw sample harvester rising pipe, improved sample collection efficiency, reduced the duration of contact of water sample and air, avoid in sample scattering and disappearing of volatilization, half volatile material as far as possible, reduce reducing substances in water sample contacts generation oxidation reaction with air, improved the fidelity of sample.
The parts of sampling instrument of the present invention form simple, and on-the-spot easy for installation, easy and simple to handle, volume is little, lightweight, easy to carry, thus, both reduced the required personnel of sample collection and equipment delivery vehicle, the day of having improved again sample gathers quantity, thereby has realized the significantly reduction of sample collection cost.
The sampling instrument of the present invention parts that are not flexible coupling, even if run into large lift or powerful water pump, also there will not be parts to surrounding, to get rid of the phenomenon of pendulum, to staff and around object without any threat, eliminated 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 totally 11 of DN150, DN125, DN100, DN80, DN65, DN50, DN40, DN32, DN25, DN20, DN15, the maximum pump line specification that gathers water sample expands DN150 to, has met the connection needs of the pump line mouth of conventional water pump among the people.
Sampling instrument of the present invention has changed composition, structure and the principle of work of original Organic Pollution water sample acquisition device, have volume little, lightweight, applied widely, be easy to carry, easy for installation, simple to operate, use safely, avoid the features such as pollution section of sample in gatherer process, improved the fidelity of collected specimens, reduced the acquisition cost of sample, guarantee the safety of personnel, equipment, improved the universality of sampling instrument.
Accompanying drawing explanation
Fig. 1 is the structural representation of sampling instrument of the present invention.
Fig. 2 is the structural representation of concentric type flow regulator embodiment 1.
Fig. 3 is the structural representation of concentric type flow regulator embodiment 1 key used.
Fig. 4 is the external structure schematic diagram of concentric type flow regulator embodiment 2.
Fig. 5 is the inner structure schematic diagram of concentric type flow regulator embodiment 2.
Fig. 6 is the structural representation of the rotation euphroe of concentric type flow regulator embodiment 2.
Fig. 7 is the holding rod end view of concentric type flow regulator.
Embodiment
As shown in Figure 1, sampling instrument of the present invention comprises the parts such as current stabilization separator tube 9, pump line bindiny mechanism, shunting pressure regulator valve, tensimeter 7, sampling flexible pipe 1 and concentric type flow regulator.
Current stabilization separator tube 9 is cylindrical tubes of the both ends open made with 304 stainless steels, is shaped with outer convex edge thereon on port, and get on the bus and be shaped with screw thread in convex edge outside.In the upper port of current stabilization separator tube 9, be provided with pump line bindiny mechanism, to realize with pollution water sample, export being fixedly connected with of pump line.On the tube wall of current stabilization separator tube 9, have streamlined water delivering orifice 8, sampling flexible pipe 1 is fixed in the external port of streamlined water delivering orifice 8.In the lower port of current stabilization separator tube 9, be provided with shunting pressure regulator valve, 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 Fig. 1, described pump line bindiny mechanism comprises parts such as taking over tower seat 12, the large pressure cap 10 of annulus, large sealing packing ring 11, small sealing ring 14 and the little pressure cap 13 of annulus.Take over tower seat 12 and be comprised of one section of standpipe and the Circular Plate that is welded on this standpipe lower port, in the upper port of standpipe, be also shaped with outer convex edge, get on the bus and be shaped with external thread in convex edge outside; 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 that internal diameter is than the serial pipe of the large 2mm of the serial outer diameter tube of GB left and right, comprise DN125, DN100, DN80, DN65, DN50, DN40, DN32, DN25, DN20, DN15 totally 10 kinds of specifications, make to take over the configuration that tower seat 12 forms one group of series size, thereby can be for the difference of scene pump line used, the selection standpipe caliber with it adapter tower seat of correspondence carries out Assembling, to realize this sampling instrument, coordinates with the reliable grafting of pump line.Taking over tower seat 12 blocks in the upper port of current stabilization separator tube 9, large sealing packing ring 11 liners are between the upper port of current stabilization separator tube 9 and the Circular Plate of adapter tower seat 12, the large pressure cap 10 of annulus by with being threaded of current stabilization separator tube upper port, the Circular Plate of taking on tower seat 12 is crimped in the upper port of current stabilization separator tube 9.Taking over tower seat 12 is also to make with 304 stainless steels.
The grafting fit system of the standpipe of adapter tower seat 12 and pollution water sample output pump line is: first on pump line, be socketed the little pressure cap 13 of annulus and small sealing ring 14, then the vertical pipe sleeve of the adapter tower seat 12 on this sampling instrument is connected on pump line, make small sealing ring 14 liners at the standpipe upper port place that takes over tower seat 12, finally the little pressure cap 13 of annulus is threaded connection with the standpipe of taking on tower seat 12, small sealing ring 14 is pressed on to standpipe upper port place, make the inner ring surface distortion of small sealing ring 14 choke pump line, realize thus pollution water sample output pump line and be connected with the firm of standpipe.
When the diameter of pump line water delivering orifice is DN150, can directly pump line and current stabilization separator tube 9 be carried out to socket connection; When pump line water delivering orifice diameter is less than DN150, can take over tower seat 12 by adapted, pump line and standpipe are carried out to socket connection.
The shunting pressure regulator valve being arranged in current stabilization separator tube 9 lower port can use polytype valves such as ball valve, butterfly valve, stop valve or gate valve.It shown in Fig. 1, is a kind of easy shunting pressure regulator valve, its structure is on an axis 6, to make one section of recessed notch, circular valve plate 5 interlockings are in this notch, and fixed with screw, the periphery of valve plate 5 can arrange O-ring seal (also O-ring seal can be set), 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 current stabilization separator tube tube wall right side, insert in the clamping blind hole on current stabilization separator tube tube wall left side the inner of axis, exposed junction cross-under at axis 6 has handle, by rotary handle, get final product rotational valve plate 5, to adjust the aperture of shunting pressure regulator valve, regulate the water flow pressure of pollution water sample.In the interface on tube wall right side, be sealed with cushion rubber (not shown) and plug 4.The adjustment of shunting pressure regulator valve is to determine according to the indication of tensimeter 7.
Sampling flexible pipe 1 is the withstand voltage transparent hose made from silica gel, and its one end is connected in the external port of streamlined water delivering orifice 8, and the other end, through concentric type flow regulator, regulates gathering the discharge size of water sample by concentric type flow regulator.Concentric type flow regulator is in a staight shank holding rod 3, to have axial core hole, sampling flexible pipe 1 is through the axial core hole of staight shank holding rod 1, in the upper end of holding rod 1, be provided with rotation euphroe 2, the free-ended extension elongation that sampling flexible pipe 1 passes after holding rod 1 should be no less than 30cm, so that insert, in sampling bottle, carries out water sampling operation.
Fig. 2 is the first specific implementation of concentric type flow regulator.
As shown in Figure 2, this concentric type flow regulator is in a staight shank holding rod 3, to have axial core hole, sampling flexible pipe 1 is through the core hole of holding rod 3, in one end of holding rod 3, be provided with the rotation euphroe 2 horizontally rotating, on the governor motion of rotation euphroe 2, be fixed with fastening rope 20, fastening rope 20 is embedded in the locating groove 301 of outputing in holding rod 3 ends (Fig. 7) after enclosing around sampling flexible pipe 1 one.
Rotation euphroe 2 is in one end of holding rod 3, to be provided with cylinder seat 205 and vertical shaft seat 209, and cylinder seat 205 is relative up and down with vertical shaft seat 209, and the upper end of cylinder seat 205 is opening end, has core hole on the lower surface of cylinder seat 205; 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 hole 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 to be connected with metal ring 208 at the bottom of vertical shaft 202 positioning end, after ring set end is inserted to the position, hole on vertical shaft seat 209, then shelters from ring set 208 with cover plate 207, and vertical shaft 202 is positioned in vertical shaft seat 209.Cover plate 207 is fixed on vertical shaft seat 209 by securing member, to cover position, hole.The top free end of vertical shaft 202 is arranged in cylinder seat 205, at the free end of vertical shaft 202, is provided with the outer tooth bar that a circle is parallel to vertical shaft axial line.Fastening rope 20 passes after the eyelet holding rod 3 from inner side, core hole, and fixing also solderless wrapped connection is in the exposed length of vertical shaft 202.Cross-under eyelet is on the holding rod 3 between cylinder seat and vertical shaft seat.On the free-ended end face of vertical shaft 202, have quadrangular that grafting unlock key uses or the jack 210 of hexagon.In cylinder seat 205, be provided with to lock in axial sliding and put ring 201, the sidewall of putting ring 201 at lock has notch 203, the screw 204 that utilizes cross-under cylinder seat 205 sidewalls and lock are put coordinating of notch 203 on ring, can make lock put ring 201 and can only in cylinder seat 205, endwisely slip and can not rotate.At lock, put on the inner ring surface that encircles 201 and be 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 ports, to put the intermeshing of inner rack on ring and the outer tooth bar on vertical shaft 202 by lock, and by vertical shaft 202 lockings firmly.
For avoiding lock to put the situation that ring 201 occurs that in moving up and down process the increment of inside and outside tooth bar pins mutually, occur, lock can be put to the upper end of inner rack of ring in 201 and the lower end of the outer tooth bar on vertical shaft 202 and be made for respectively the pointed shape of triangle etc., the cooperation so that inside and outside tooth bar is pegged graft each other.
Lock is put to the unlocking operation of ring 201, by custom-designed unlock key 211(Fig. 3) carry out; Flow regulation to sampling flexible pipe 1, also operates by unlock key 211.In Fig. 3, on unlock key 211, be provided with external toroidal ring 213 and the quadrangular of grafting vertical shaft or the inserted link of hexagon 212 that pushing lock is put ring.In inserted link 212 is plugged into the prismatic jack 210 on vertical shaft 202 after (being inserted into the end), external toroidal ring 213 on unlock key 211 is put ring 201 and is pushed in cylinder seat 205 with being about to lock, lock is put inner rack on ring and the outer tooth bar on vertical shaft 202 is separated, now, by rotating the handle of unlock key, can stir vertical shaft 202 clockwise or rotate counterclockwise, the fastening rope 20 that makes to be connected on vertical shaft 202 is tightened up or loosens, thereby to fastening rope around sampling flexible pipe 1 carry out concentric folding and unfolding, make the streamline bundle that gathers water sample remain " cylinder " shape, reduced thus volatilization, the probability that half volatile material is separated out.
In Fig. 2, on the inwall of the core hole of holding rod 3, can make the ring groove (relative with the eyelet of cross-under fastening rope) of an about 2mm of the degree of depth so that fastening rope 20 can embedded groove in, freely hoop slides.
Fig. 4-Fig. 6 is the second specific implementation of concentric type flow regulator.
As shown in Figure 4, Figure 5, this concentric type flow regulator is in staight shank holding rod 3, to have axial core hole, sampling flexible pipe is through the core hole of holding rod 3, in one end of holding rod 3, be provided with the rotation euphroe 2 that facade rotates, on the governor motion of rotation euphroe 2, be fixed with fastening rope 20, fastening rope 20 is embedded in the locating groove 301 of outputing in holding rod 3 ends (Fig. 7) after enclosing around sampling flexible pipe 1 one.
As Fig. 5, shown in Fig. 6, rotation euphroe 2 is by semi-girder, to be connected with one heart seat board 221 in circle on a side opening of urceolus circle 224, the pressure that is respectively arranged with opening inner core circle 220 and is positioned at opening inner core circle inside at the medial surface of interior seat board 221 is dialled device, on opening inner core circle 220, be provided with the open section of approximately 120 ° of central angles, on the another side opening of urceolus circle 224, be sealed with circular cover 229, on cover plate 229, be connected to rotating central shaft 225, in the end of central shaft 225, be connected to the circular cap type thumb wheel 223 of outward opening, the wheel of thumb wheel 223 is along the periphery face that is positioned at opening inner core circle 220, wheel at thumb wheel 223 is provided with the interior tip surface 230 of a circle axial distribution along medial surface, wheel at thumb wheel 223 is evenly equipped with and stirs group beans 222 that thumb wheel is used along end face, 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 perpendicular with the axis of holding rod 3.Fastening rope 20 penetrates by the eyelet on urceolus circle 224, fixing also solderless wrapped connection is on central shaft 225, with finger, from the lateral opening of rotation euphroe 2, stir beans 222, make thumb wheel 223 forward or reverse, to adjust the elasticity that is wrapped in the fastening rope 20 on sampling flexible pipe 1, thereby reach the object that sampling flexible pipe 1 is carried out to the adjustment of concentric-ring pattern.
The pressure of rotation in euphroe 2 dialled device to be for locking or to loosen thumb wheel, 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 respectively on the inwall of opening inner core circle 220, the other end of two shift forks 227 stretches out respectively the open section of opening inner core circle 220, and under the stirring of shifting block 226, be connected to described thumb wheel 223 and take turns along on the interior tip surface 230 on medial surface, by thumb wheel 223 lockings.Outside the middle part of two shift forks 227 and between the inwall of opening inner core circle 220, be respectively equipped with the top spring 228 that promotes shift fork return.On shifting block 226, by coupling shaft, be connected to turning handle 231, 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, and the reading that makes tensimeter 7 is 0.18～0.2MPa; Grasp concentric type flow regulator, stretching sampling flexible pipe 1, makes its water delivering orifice upward, exceeds the end face 800mm of current stabilization separator tube 9 and is erectility; Slowly regulate concentric type flow regulator, the water polo face height of flexible pipe 1 water outlet that makes to sample is less than 5mm, and the flexible pipe 1 of guaranteeing to sample is inner and the current of water outlet in lose bubble; The water delivering orifice of sampling flexible pipe 1 is slowly inserted in the sampling bottle (for the sample collection containing half volatile material) of 2000ml, until the water side of sampling flexible pipe 1 is about 5～8mm with bottle end distance, place motionlessly, when the water surface is from the about 50mm of bottleneck distance in bottle, slowly propose sampling flexible pipe 1.In putting forward pipe process, guarantee that the water delivering orifice of sampling flexible pipe 1 and the water surface distance in bottle are not more than 5mm, until sampling bottle is filled water sample.Finally tighten bottle cap, be inverted micro-striking, in bottle, without Bubble formation, complete the collecting work of large bottle sample.
While gathering the pollution water sample that contains volatile matter, the flexible pipe 1 of sampling slowly inserts 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, the water delivering orifice and the water surface distance that guarantee sampling flexible pipe 1 are not more than 5mm, until fill water sample, tighten bottle cap, be inverted micro-striking, in bottle, without Bubble formation, complete 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, in body upper port, is shaped with external thread, has streamlined water delivering orifice on tube wall, for accepting the pollution water sample of pumping and pollution water sample being carried out to current stabilization conveying;
Pump line bindiny mechanism, is arranged in the upper port of described current stabilization separator tube, for realizing with pollution water sample, exports being fixedly connected with of pump line;
Shunting pressure regulator valve, is arranged in the lower port of described current stabilization separator tube, for the water flow pressure of regulating flow-stabilizing separator tube pollution water sample;
Tensimeter, is arranged on the tube wall of described current stabilization separator tube, for detection of 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 laminar condition from described current stabilization separator tube to carry out water sampling; And
Concentric type flow regulator, is socketed on described sampling flexible pipe, for regulating the uninterrupted that gathers water sample;
Described pump line bindiny mechanism comprises:
Take over tower seat, by one section of standpipe and the Circular Plate that is connected to described standpipe lower port, formed, upper port at described standpipe is shaped with external thread, 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 is slightly larger than the external diameter of pollution water sample output pump line, to peg graft and to coordinate with pollution water sample output pump line;
The large pressure cap of annulus, by with being threaded of described current stabilization separator tube, the described Circular Plate on described adapter tower seat is crimped in the upper port of described current stabilization separator tube;
Large sealing packing ring, liner is between the upper port of described current stabilization separator tube and the described Circular Plate of described adapter tower seat;
Small sealing ring, for being socketed pollution water sample output pump line liner at the upper port place of the described standpipe of described adapter tower seat; And
The little pressure cap of annulus, by being threaded of the described standpipe with on described adapter tower seat, realizing the pollution water sample output pump line being plugged in described standpipe and is connected with the firm of described standpipe;
Described concentric type flow regulator is in a staight shank holding rod, to have axial core hole, described sampling flexible pipe is through the described core hole of described staight shank holding rod, in one end of described holding rod, be provided with rotation euphroe, on the governor motion of described rotation euphroe, be fixed with fastening rope, described fastening rope is embedded in the locating groove of outputing 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 be on an axis, be connected to can shutoff described in the circular valve plate of current stabilization separator tube lower port, described axis is through the interface on described current stabilization separator tube tube wall, in its inner clamping blind hole of inserting on described current stabilization separator tube tube wall, exposed junction cross-under at described axis has handle, is sealed with cushion rubber and plug in described interface.
3. mouth of pipe reducing plug-in type sampling instrument according to claim 1, it is characterized in that, described rotation euphroe is in the upper end of described holding rod, to be provided with axially to deflect away from outside, core hole and cylinder seat opposing upper and lower and vertical shaft seat, the top of described cylinder seat is opening end, on 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; In described cylinder seat, be provided with to lock in axial sliding and put ring, at described lock, put on the inner ring surface of ring and be provided with the inner rack that a circle can be meshed with the described outer tooth bar on described vertical shaft; 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, to mesh vertical shaft described in locking by tooth bar; Described holding rod on the body of rod between described cylinder seat and described vertical shaft seat, have horizontal eyelet, the described fastening rope passing from described eyelet is fixed on described vertical shaft; In the upper surface of described vertical shaft, have prismatic key hole.
4. mouth of pipe reducing plug-in type sampling instrument according to claim 3, is characterized in that, the degree of depth of described key hole is to be inserted at key at the end, make described lock put ring by key, pressed down and depart from described vertical shaft on the engagement of described outer tooth bar.
5. mouth of pipe reducing plug-in type sampling instrument according to claim 3, is characterized in that, the upper end of the described inner rack in ring put by described lock and the lower end of the described outer tooth bar on described vertical shaft is respectively the pointed shape of being convenient to the mutual cooperation of pegging graft.
6. mouth of pipe reducing plug-in type sampling instrument according to claim 3, is characterized in that, described lock is put described inner rack in ring and the profile of tooth of the described outer tooth bar on described vertical shaft is respectively triangle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410042399.XA CN103743599B (en) | 2014-01-28 | 2014-01-28 | Mouth of pipe reducing plug-in type sampling instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410042399.XA CN103743599B (en) | 2014-01-28 | 2014-01-28 | Mouth of pipe reducing plug-in type sampling instrument |
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| CN103743599A true CN103743599A (en) | 2014-04-23 |
| CN103743599B CN103743599B (en) | 2015-10-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060439A (en) * | 2018-09-07 | 2018-12-21 | 杨建清 | A kind of adjustable filter opening sampling of water quality equipment with negative pressure switch |
| CN111579312A (en) * | 2019-02-18 | 2020-08-25 | 帆宣系统科技股份有限公司 | Sampling device for gas detector |
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| 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 |
| CN203705218U (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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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4091677A (en) * | 1976-12-23 | 1978-05-30 | Nichiryo Co., Ltd. | Pipetting apparatus |
| WO2006008466A1 (en) * | 2004-07-15 | 2006-01-26 | The University Of Manchester | Liquid sampling |
| 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 |
| CN203705218U (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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109060439A (en) * | 2018-09-07 | 2018-12-21 | 杨建清 | A kind of adjustable filter opening sampling of water quality equipment with negative pressure switch |
| CN109060439B (en) * | 2018-09-07 | 2020-12-04 | 杭州迹瑞工贸有限公司 | Adjustable filtration pore water quality sampling equipment with negative pressure switch |
| CN111579312A (en) * | 2019-02-18 | 2020-08-25 | 帆宣系统科技股份有限公司 | Sampling device for gas detector |
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| CN103743599B (en) | 2015-10-14 |
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Inventor after: Wen Jili Inventor after: Liu Changli Inventor after: Zhu Liang Inventor after: Liu Jingtao Inventor after: Wang Cuiling Inventor before: Wen Jili Inventor before: Liu Jingtao Inventor before: Zhu Liang |
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