CN102225345A - Water saving device in chemical laboratory combined with laboratory existing ventilating structure - Google Patents
Water saving device in chemical laboratory combined with laboratory existing ventilating structure Download PDFInfo
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- CN102225345A CN102225345A CN2011101594304A CN201110159430A CN102225345A CN 102225345 A CN102225345 A CN 102225345A CN 2011101594304 A CN2011101594304 A CN 2011101594304A CN 201110159430 A CN201110159430 A CN 201110159430A CN 102225345 A CN102225345 A CN 102225345A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Abstract
The invention relates to a water saving device in a chemical laboratory combined with a laboratory existing ventilating structure, which belongs to the field of water collecting and water distributing. In the present correlation background art, the problems that the deficient strain capability of power consumption of the water saving apparatus and inter system circulating water pollution caused by chemical reaction solution splash are existed. The above problems are solved by the invention. Under the background that a linkage heat radiation mechanism of an original cross-flow type cooling tower and a ventilation cabinet is directly connected with a water utilization mechanism, a structure mode can be changed by the device, a waterstorage tectonic body with heat storage buffer effect is added between two mechanisms, the original continuous and unintermittent operation of a heat radiation mechanism can be changed to an intermittent operation though a heat exchange mechanism and a timely motion of an automatic temperature control switch, therefore the purpose of water saving without wasting electric power resource can be achieved; simultaneously, an opening position of the lateral air interface is moved on an exhaust pipe of a fume cupboard far away from a chemical experiment operating console, thereby the splash influence can be eliminated.
Description
Technical field
The present invention relates to a kind of chemical lab water saving device, belong to that E03B catchments, the water distribution field in conjunction with the existing vented construction in laboratory.
Background technology
In the elementary teaching laboratory that is used for basic professional skill training of each chemistry department of colleges and universities; many distillation or heating reflux operations of relating to are arranged in the chemical experiment of arranging throughout the year; when tens of names even hundreds of students launch this class experiment simultaneously; the cooling water discharge port separately that can see several covering devices or even tens of covering devices is directly to drain; the tap that is equivalent to several or even dozens of is being opened directly simultaneously and is being discharged water to sewer; these cooling waters are directly to draw from running water; just so in device stream turn around and enter sewer immediately; pay close attention to this phenomenon; will recognize how serious it is that the water resource waste that causes thus has, above-mentioned water resource waste situation and be the high throughout the year one of the main reasons of chemistry department of each colleges and universities water rate spending.
For solving this water resource waste problem, the Li Rongsheng of ningbo of china university etc., submitted the application for a patent for invention case of a autograph to for " having made up the chemical lab water saving device of laboratory ventilation pipeline " on July 9th, 2009, the application number of this case is 200910159725.4, the principal claim content of this case: these water saving fixtures comprise sparge pipe, and, collector pipe, and, cross flow cooling tower, and, water pump, the water inlet interface UNICOM of the water outlet interface of cross flow cooling tower and water pump, the water outlet interface of water pump and sparge pipe UNICOM, the water inlet interface of cross flow cooling tower and collector pipe UNICOM, described collector pipe and sparge pipe are tube, on collector pipe and sparge pipe, all be equiped with many taps, and, ventilating kitchen, this ventilating kitchen is the ventilating kitchen that chemical laboratory uses, an end UNICOM of this ventilating kitchen and ventilating kitchen exhaust duct, the air inlet UNICOM of the other end of ventilating kitchen exhaust duct and ventilating kitchen exhaust blower, the sidewall of this ventilating kitchen is equiped with collateral branch's air interface, and this collateral branch's air interface is via the exhaust outlet UNICOM of pipeline and cross flow cooling tower.This case provides a kind of useful water saving solution.
But, it according to this application number is 200910159725.4 scheme, no matter the water experimental facilities that the laboratory starts has several covers, no matter it is much that the cool cycles water consumption has, cooling tower fan electromotor and water pump all will keep the running that continues, and the ventilating kitchen exhaust blower also will together keep running, when the cooling circulating water watering equipment of operation simultaneously is many, it is more satisfactory that yes, but, sometimes, launch under the situation fewer in number of experiment in the laboratory, the cooling circulating water watering equipment negligible amounts that may start, under this situation, still allow cooling tower fan electromotor and water pump and ventilating kitchen exhaust blower keep the running that continues, just seem and wasted electric power resource a little, because with regard to its heat radiation cooling capacity, one even miniature cooling tower, also be enough to deal with thousands of watts, ten thousands of watts of heats that heating equipment sends, so, how on the basis of the advantage design that keeps described prior art, by further improvement, the water consumption that makes water saving fixtures can adapt to cooling water changes, both reached and economized on water, do not waste the purpose of electric power resource again, just became a significant technical problem to be solved.On the other hand, this application number is 200910159725.4 scheme, the position of offering of its collateral branch's air interface is a sidewall at fume hood, the chemistry experiment operating district of the position of this collateral branch's air interface in fume hood is too near, might bring the pollution to recirculated water in the cooling tower because of the splash of chemical reaction liquid, this also is a defective that needs overcome.
Summary of the invention
Technical problem to be solved by this invention is, at above-mentioned application number is that 200910159725.4 the existing cooling tower of scheme adds the hypodynamic problem of ventilating kitchen linked system power consumption strain energy, and, the problem of described chemical reaction liquid splash influence, research and develop a kind of when paying close attention to water saving, take into account cooling tower again and add the saving of ventilating kitchen linked system power consumption, and, the water saving fixtures that described chemical reaction liquid splash influences can be eliminated simultaneously again.
The present invention solve the technical problem by following scheme, this scheme provides a kind of chemical lab water saving device in conjunction with the existing vented construction in laboratory, the structure of these water saving fixtures comprises sparge pipe, and, collector pipe, and, cross flow cooling tower, and, water pump, the water inlet interface UNICOM of the water outlet interface of cross flow cooling tower and water pump, described collector pipe and sparge pipe are tube, on collector pipe and sparge pipe, all be equiped with many taps, and, ventilating kitchen, this ventilating kitchen is the ventilating kitchen that chemical laboratory uses, one end UNICOM of this ventilating kitchen and ventilating kitchen exhaust duct, the air inlet UNICOM of the other end of ventilating kitchen exhaust duct and ventilating kitchen exhaust blower, this case main points are, this ventilating kitchen exhaust duct is equiped with collateral branch's air interface, this collateral branch's air interface is via the exhaust outlet UNICOM of pipeline and cross flow cooling tower, and, the structure of these water saving fixtures also comprises the water storage tectosome, this water storage tectosome is a water tower, water storage tank, hopper, water butt or storage cistern, and, full-automatic temperature detect switch (TDS), described full-automatic temperature detect switch (TDS) is full-automatic temperature control damper, its installation position of temperature probe that connects with this full-automatic temperature detect switch (TDS) is in the inside of described water storage tectosome or is attached at the outer surface of described water storage tectosome, the power line of described water pump connects with described full-automatic temperature detect switch (TDS), this water storage tectosome comprises two pairs of interfaces that are used to water into and water outlet, the inside of this water storage tectosome is equiped with heat exchanger, the water inlet interface of this heat exchanger and water outlet interface are used to the interface UNICOM of water into and water outlet respectively with described water storage tectosome a pair of, respectively with that docking port that is used to water into and water outlet of the described water storage tectosome of the water inlet interface of this heat exchanger and water outlet interface UNICOM and respectively with the water inlet interface UNICOM of the water outlet interface and the cross flow cooling tower of described water pump, and, another water pump, the water outlet interface of described another water pump and described sparge pipe UNICOM, the interface that the remainder of described water storage tectosome a pair of is used to water into and water outlet respectively with the water inlet interface of described another water pump and described collector pipe UNICOM.
The described cooling system of this case refers to described cooling tower and adds the ventilating kitchen linked system, and this cooling system is the important component part of this case apparatus structure.
Its art-recognized meanings of cross flow cooling tower one speech is known; Cross flow cooling tower market is on sale.
The ventilating kitchen that described chemical laboratory uses, for chemical industry staff and relevant speciality cabinet producer, its art-recognized meanings is known.
Side towards the user of ventilating kitchen offer usually can folding windowpane, when described windowpane is shut fully, just become unique air air flue that flows with the air flue of cross flow cooling tower UNICOM.
Described sparge pipe is the pipeline that is used for distributing to each side-by-side reactions device cooling water, and described collector pipe is to be used to collect the waste water that is subjected to thermal pollution that the temperature of flowing through after each side-by-side reactions device rises to some extent.It is described that to be subjected to its pollution factor of waste water of thermal pollution only be temperature rise.These water saving fixtures can further include the filter that can be installed in any position in the circulation line, this filter can be used for the impurity in the filtering pipeline water, cycling use of water can access under the situation of periodic replacement in water saving fixtures, and described filter is optional.These water saving fixtures certainly comprise the water compensation mechanism that is used for to the bottom water tank moisturizing of described cross flow cooling tower, and its art-recognized meanings of described water compensation mechanism itself is known, and described water compensation mechanism is optional, because also manually moisturizing.
The installation position location separately of described collector pipe and sparge pipe is that the location can arbitrarily be installed as required, but, for the ease of taking and the collection and the Recycling of thermal pollution waste water of cooling water, preferably installing mode is that described collector pipe and described sparge pipe are parallel to each other.
Based on the cause of this case, the structure of described water saving fixtures can comprise experimental bench, and described experimental bench is platform shape thing or table shape thing, and described collector pipe and sparge pipe are installed in described experimental bench.Under this situation, described collector pipe and sparge pipe can be erected on the table top of experimental bench, perhaps, are erected on the table top peripheral position of experimental bench, also can be erected on the lateral location of experimental bench.Described collector pipe and sparge pipe both can laterally set up abreast with the experimental bench table top, also can set up with the orthogonal direction of experimental bench table top.
Many speech in the scheme mean more quantity, and described many for example six, eight, ten, 20,30,40,50,60, or the like.
Further preferred construction comprises shutter, and the installation position of described shutter is the locations of structures at described collateral branch air interface, and described shutter is the shutter of automatically controlled folding.The existence of the shutter of described automatically controlled folding can be isolated different gas channels where necessary.Its art-recognized meanings of the shutter of described automatically controlled folding is known; The shutter market of described automatically controlled folding is on sale.
Itself art-recognized meanings of heat exchanger one speech is known.There is the various heat exchanger of form available, based on convenient and simple for structure the considering of installing, preferred tray tubing heat exchanger or fin tube type heat exchanger.Described tube coil type heat exchanger and fin tube type heat exchanger, the art-recognized meanings of itself is known.The heat exchanger of various forms, market are all on sale.
The shutter of described automatically controlled folding not necessarily because also can install automatically controlled gate valve connecting on that pipeline of collateral branch's air interface and the exhaust outlet of cross flow cooling tower.This automatically controlled gate valve can be controlled the switching of described collateral branch air flow circuit equally.This automatically controlled gate valve neither be necessary, because hand sluice valve can be installed.
The power line of cross flow cooling tower fan electromotor can connect with described full-automatic temperature detect switch (TDS).But the power line of cross flow cooling tower fan electromotor can not connect with described full-automatic temperature detect switch (TDS) yet; Because the power of fume hood exhaust blower also is enough to deal with cooling tower cooling demand.
The power line of described fume hood exhaust blower can connect with described full-automatic temperature detect switch (TDS).But the power line of fume hood exhaust blower can not connect with described full-automatic temperature detect switch (TDS) yet, connects with the general supply line via special switch individually and adopt.
Advantage of the present invention is, be on the basis of 200910159725.4 water-saving technology at original application number, added a heat exchange block based on the high heat storage capacity of big thermal capacitance medium, with this structural block as buffer blocks, to belong to the lasting running that described radiating area block structured cross flow cooling tower adds the association system of ventilating kitchen and change into intermittently running, thus, in water saving, reduced and belonged to the power consumption that described radiating area block structured cross flow cooling tower adds the association system of ventilating kitchen.This case device is further perfect described water-saving technology.
It compared to application number 200910159725.4 water-saving technology, another important advance of this case is, this case is to offer collateral branch's air interface on the fume hood exhaust duct, rather than in the sidewall upper shed of fume hood, like this, on the one hand, avoided change to the main structure body of the fume hood of usual use, from visual experience, accepted easilier by the experimenter, and, collateral branch's air interface on the fume hood exhaust duct, offered, used breadboard upper space more, more harmonious from structure, reasonable; On the other hand, the splash phenomenon that its chemical reaction liquid of the chemical experiment that launches in fume hood takes place owing to a variety of causes also is a common occurrence, this case is offered collateral branch's air interface being positioned on the fume hood exhaust duct of eminence more, comparatively speaking, more help the pollution of avoiding described reactant liquor splash to bring to recirculated water in the cooling tower.
Description of drawings
Fig. 1 is this case embodiment schematic diagram, this figure and described the connected mode of the relevant chemical experiment device of a cover and this case device extraly.
Among the figure, the 1st, breadboard metope, the 2nd, the ventilating kitchen exhaust blower, the 3rd, the ventilating kitchen exhaust duct, the 4th, ventilating kitchen, the 5th, the locker of ventilating kitchen bottom, the 6th, be installed in the shutter of the automatically controlled folding of the collateral branch air interface position that is positioned at the ventilating kitchen exhaust duct, the 7th, the pipeline that cross flow cooling tower exhaust outlet and air interface UNICOM of described collateral branch are got up, the 8th, the exhaust outlet of cross flow cooling tower, the 9th, water pump, the 10th, cross flow cooling tower, the 11st, the water outlet interface of cross flow cooling tower, the 12nd, sparge pipe, the 13rd, collector pipe, the 14th, experimental bench, the part of only drawing this experimental bench in the legend, the 15th, the water inlet interface of cross flow cooling tower, the 16th, for the original locations of structures of offering collateral branch's air interface in the existing related background art of reference, this position is too near apart from chemical operating desk in the fume hood, than being easier to be subjected to chemical reaction liquid splash pollution effect, 17, the 18th, cable, the 19th, the temperature probe of full-automatic temperature detect switch (TDS), the 20th, full-automatic temperature detect switch (TDS), the 21st, described water storage tectosome, the 22nd, the water of loading in the water storage tectosome, the 23rd, heat exchanger, the 24th, described another water pump, the arrow that occurs in the legend indicates water (flow) direction in the pipeline.
The specific embodiment
In this case embodiment that Fig. 1 showed, the structure of device comprises sparge pipe 12, and, collector pipe 13, and, cross flow cooling tower 10, and, water pump 9, the water outlet interface 11 of cross flow cooling tower 10 and the water inlet interface UNICOM of water pump 9, collector pipe 13 and sparge pipe 12 are tube, on collector pipe 13 and sparge pipe 12, all be equiped with many taps, and, ventilating kitchen 4, this ventilating kitchen 4 is ventilating kitchens that chemical laboratory uses, one end UNICOM of this ventilating kitchen 4 and ventilating kitchen exhaust duct 3, the air inlet UNICOM of the other end of ventilating kitchen exhaust duct 3 and ventilating kitchen exhaust blower 2, emphasis is, this ventilating kitchen exhaust duct 3 is equiped with collateral branch's air interface, this collateral branch's air interface is via exhaust outlet 8 UNICOMs of pipeline 7 with cross flow cooling tower 10, the structure of these water saving fixtures also comprises water storage tectosome 21, this water storage tectosome 21 is water towers, water storage tank, hopper, water butt or storage cistern, and, full-automatic temperature detect switch (TDS) 20, full-automatic temperature detect switch (TDS) 20 is full-automatic temperature control dampers, temperature probe 19 its installation positions that connect with this full-automatic temperature detect switch (TDS) 20 are in the inside of described water storage tectosome 21 or are attached at the outer surface of water storage tectosome 21, the power line of water pump 9 connects with full-automatic temperature detect switch (TDS) 20, this water storage tectosome 21 comprises two pairs of interfaces that are used to water into and water outlet, the inside of this water storage tectosome 21 is equiped with heat exchanger 23, the water inlet interface of this heat exchanger 23 and water outlet interface are used to the interface UNICOM of water into and water outlet respectively with water storage tectosome 21 a pair of, respectively with that docking port that is used to water into and water outlet of the water storage tectosome 21 of the water inlet interface of this heat exchanger 23 and water outlet interface UNICOM and respectively with water inlet interface 15 UNICOMs of the water outlet interface and the cross flow cooling tower 10 of water pump 9, and, another water pump 24, the water outlet interface of described another water pump 24 and sparge pipe 12 UNICOMs, the interface that the remainder of water storage tectosome 21 a pair of is used to water into and water outlet respectively with the water inlet interface and described collector pipe 13 UNICOMs of described another water pump 24.
The related UNICOM of this case one speech, the meaning refer to and connect and perforation.
In this legend, collector pipe 13 is installed in parallel to each other with sparge pipe 12.It is a pipe that the quantity of sparge pipe 12 and collector pipe 13 certainly is far above, and its number of tubes is not limit, and can be the quantity that any needs are installed and used.
The structure of these water saving fixtures also can comprise experimental bench 14, and experimental bench 14 is platform shape thing or table shape thing, the part of only drawing experimental bench 14 in the legend, and in this example, collector pipe 13 and sparge pipe 12 are installed in abreast with the table top of experimental bench 14.Certainly, in fact the installing mode of collector pipe and sparge pipe is not limit, and can allow according to breadboard spatial configuration, adopts any arrangement mode to install.
Preferred construction comprises the shutter 6 of automatically controlled folding.The shutter 6 and the described collateral branch air interface of automatically controlled folding are to be positioned at same locations of structures.
Preferred construction also can be included in the automatically controlled gate valve of installing on that pipeline 7 of the exhaust outlet 8 that connects collateral branch's air interface and cross flow cooling tower 10.Do not show this structural member in the legend.This structural member not necessarily.
The power line 17 of cross flow cooling tower 10 fan electromotors can connect with full-automatic temperature detect switch (TDS) 20.This connects not necessarily.
The power line of fume hood exhaust blower 2 can connect with full-automatic temperature detect switch (TDS) 20.This connection neither be necessary.
Claims (8)
1. in conjunction with the chemical lab water saving device of the existing vented construction in laboratory, the structure of these water saving fixtures comprises sparge pipe, and, collector pipe, and, cross flow cooling tower, and, water pump, the water inlet interface UNICOM of the water outlet interface of cross flow cooling tower and water pump, described collector pipe and sparge pipe are tube, on collector pipe and sparge pipe, all be equiped with many taps, and, ventilating kitchen, this ventilating kitchen is the ventilating kitchen that chemical laboratory uses, one end UNICOM of this ventilating kitchen and ventilating kitchen exhaust duct, the air inlet UNICOM of the other end of ventilating kitchen exhaust duct and ventilating kitchen exhaust blower, it is characterized in that, this ventilating kitchen exhaust duct is equiped with collateral branch's air interface, this collateral branch's air interface is via the exhaust outlet UNICOM of pipeline and cross flow cooling tower, and, the structure of these water saving fixtures also comprises the water storage tectosome, this water storage tectosome is a water tower, water storage tank, hopper, water butt or storage cistern, and, full-automatic temperature detect switch (TDS), described full-automatic temperature detect switch (TDS) is full-automatic temperature control damper, its installation position of temperature probe that connects with this full-automatic temperature detect switch (TDS) is in the inside of described water storage tectosome or is attached at the outer surface of described water storage tectosome, the power line of described water pump connects with described full-automatic temperature detect switch (TDS), this water storage tectosome comprises two pairs of interfaces that are used to water into and water outlet, the inside of this water storage tectosome is equiped with heat exchanger, the water inlet interface of this heat exchanger and water outlet interface are used to the interface UNICOM of water into and water outlet respectively with described water storage tectosome a pair of, respectively with that docking port that is used to water into and water outlet of the described water storage tectosome of the water inlet interface of this heat exchanger and water outlet interface UNICOM and respectively with the water inlet interface UNICOM of the water outlet interface and the cross flow cooling tower of described water pump, and, another water pump, the water outlet interface of described another water pump and described sparge pipe UNICOM, the interface that the remainder of described water storage tectosome a pair of is used to water into and water outlet respectively with the water inlet interface of described another water pump and described collector pipe UNICOM.
2. the chemical lab water saving device in conjunction with the existing vented construction in laboratory according to claim 1 is characterized in that, described collector pipe and described sparge pipe are parallel to each other.
3. the chemical lab water saving device in conjunction with the existing vented construction in laboratory according to claim 1, it is characterized in that, the structure of these water saving fixtures comprises experimental bench, and described experimental bench is platform shape thing or table shape thing, and described collector pipe and sparge pipe are installed in described experimental bench.
4. the chemical lab water saving device in conjunction with the existing vented construction in laboratory according to claim 1 is characterized in that, is equiped with shutter in the position of described collateral branch air interface, and described shutter is the shutter of automatically controlled folding.
5. the chemical lab water saving device in conjunction with the existing vented construction in laboratory according to claim 1 is characterized in that, described heat exchanger is tube coil type heat exchanger or fin tube type heat exchanger.
6. the chemical lab water saving device in conjunction with the existing vented construction in laboratory according to claim 1 is characterized in that, is equiped with automatically controlled gate valve on that pipeline of the exhaust outlet that connects collateral branch's air interface and cross flow cooling tower.
7. the chemical lab water saving device in conjunction with the existing vented construction in laboratory according to claim 1 is characterized in that, the power line of cross flow cooling tower fan electromotor connects with described full-automatic temperature detect switch (TDS).
8. the chemical lab water saving device in conjunction with the existing vented construction in laboratory according to claim 1 is characterized in that, the power line of described fume hood exhaust blower connects with described full-automatic temperature detect switch (TDS).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110159430.4A CN102225345B (en) | 2011-06-03 | 2011-06-03 | Water saving device in chemical laboratory combined with laboratory existing ventilating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110159430.4A CN102225345B (en) | 2011-06-03 | 2011-06-03 | Water saving device in chemical laboratory combined with laboratory existing ventilating structure |
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| Publication Number | Publication Date |
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| CN102225345A true CN102225345A (en) | 2011-10-26 |
| CN102225345B CN102225345B (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110159430.4A Expired - Fee Related CN102225345B (en) | 2011-06-03 | 2011-06-03 | Water saving device in chemical laboratory combined with laboratory existing ventilating structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4879075A (en) * | 1988-09-13 | 1989-11-07 | Hinton Robert A | Evaporative air cooling apparatus |
| CN2684926Y (en) * | 2003-12-16 | 2005-03-16 | 天津商学院 | Water-saving experimental table |
| CN101637735A (en) * | 2009-07-09 | 2010-02-03 | 宁波大学 | Water-saving device in chemistry lab combining ventilation pipeline in lab |
| CN101655283A (en) * | 2008-08-19 | 2010-02-24 | 海尔集团公司 | Solar water heater and heating control method |
| CN101520266B (en) * | 2008-12-30 | 2010-09-08 | 宁波大学 | Water-saving device for chemical laboratory |
-
2011
- 2011-06-03 CN CN201110159430.4A patent/CN102225345B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4879075A (en) * | 1988-09-13 | 1989-11-07 | Hinton Robert A | Evaporative air cooling apparatus |
| CN2684926Y (en) * | 2003-12-16 | 2005-03-16 | 天津商学院 | Water-saving experimental table |
| CN101655283A (en) * | 2008-08-19 | 2010-02-24 | 海尔集团公司 | Solar water heater and heating control method |
| CN101520266B (en) * | 2008-12-30 | 2010-09-08 | 宁波大学 | Water-saving device for chemical laboratory |
| CN101637735A (en) * | 2009-07-09 | 2010-02-03 | 宁波大学 | Water-saving device in chemistry lab combining ventilation pipeline in lab |
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| CN102225345B (en) | 2014-06-04 |
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