CN2764470Y - Exhaust gas absorption system for chemical laboratory - Google Patents
Exhaust gas absorption system for chemical laboratory Download PDFInfo
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- CN2764470Y CN2764470Y CN 200520112256 CN200520112256U CN2764470Y CN 2764470 Y CN2764470 Y CN 2764470Y CN 200520112256 CN200520112256 CN 200520112256 CN 200520112256 U CN200520112256 U CN 200520112256U CN 2764470 Y CN2764470 Y CN 2764470Y
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Abstract
The utility model relates to an exhaust gas absorption system for a chemical laboratory. The system comprises a waste pickle liquid absorption cell, a spent lye absorption cell and an activated carbon absorption column arranged on the existing exhaust system in parallel connection. The utility model uses the waste liquid created by the laboratory to absorb the exhaust gases created by the laboratory. Two kinds of pollutant are processed at the same time. The air pollution caused by the gas exhausted by the chemical laboratory is solved, and the environmental hazard caused by the waste liquid exhausted by the chemical laboratory is also solved. The system is simple, and is particularly suitable for chemistry laboratories, biology laboratories, etc. which do not have very high pollutant concentration.
Description
Technical field
The utility model relates to a kind of absorption system that is used for the discharge gas of chemical laboratory.
Background technology
Along with China's science and technology development, increasing to the demand of all kinds of chemistry and biology laboratory, the key lab of each subject, each school, each intrasystem key lab are also more and more.From distributing, these laboratories mainly concentrate on the Inspection Research department in school's (comprising each institution of higher learning and middle school school), scientific research institution, testing agency and the enterprise.One group of statistics according to 1999 show, just have 1100 of all kinds of institution of higher learning in China in 1999,1.5 ten thousand of regular senior secondary schools, and 6.3 ten thousand of junior middle schools are surplus the inspection bodies at different levels nearly 20000 such as scientific research institutions, quality inspection, health and epidemic prevention, environmental monitoring, agricultural.Chemistry that these units have and biological species laboratory have become a huge system.Be distributed in the laboratory of enterprise, its pollution problem that causes can reduce the environmental issue of enterprise, is easy to be paid attention to by departments at different levels, and enterprise is when handling the environmental issue of self, and breadboard pollution problem also can be handled accordingly.And all kinds of laboratories that are distributed in school and scientific research institution mostly are relatively independent administrative unit, and the zone disperses, and single pollution is few, and is out in the cold easily.
The laboratory that is distributed in school and scientific research institution mainly produces two pollutants.The pollutant one is the waste gas that experimentation produces, in condition university and scientific research institutions preferably, its laboratory generally adopts " fume hood " to solve indoor air pollution problems inherent, but by the gas that this class exhaust apparatus is discharged mainly is directly to airborne release through exhaust duct, be to utilize air to dilute waste gas, to reduce toxicity, be not a kind of method of real destroy contaminants, it is the inevitable pollution that has caused new outdoor environment again when solving indoor pollution.
The another kind of pollutant that the laboratory of school and scientific research institution produces is the discard solution that discharge in the laboratory, and these discard solutions mostly are spent acid or spent caustic solution.Normally not treated directly being discharged in the sewer caused environmental pollution.Especially be positioned at the laboratory of city and residential block, its sewer communicates with resident's sewer, and pollutant forms cross pollution by sewer, and is in the last inflow stream or permeate the ground, big especially to the harm of environment.
In sum, the laboratory has become the small-sized pollution sources of a quasi-representative, and construction more pollute just big more more.The laboratory that the scientific worker or following scientific worker utilize school and scientific research institution on the one hand becomes the polluter of environment again on the one hand inadvertently in the research work that promotes the well-being of mankind, and makes us very sorry.
The utility model content
The purpose of this utility model is to overcome prior art waste gas and the waste liquid that some laboratories produce directly is discharged in air or the water, can cause the defective of new environmental pollution, thereby a kind of waste gas that utilizes the waste liquid absorption experiment chamber generation of laboratory generation is provided, has handled the absorption system of the discharge gas that is used for chemical laboratory of two kinds of pollutants simultaneously.
The purpose of this utility model realizes by the following technical solutions:
The utility model provides a kind of absorption system that is used for the discharge gas of chemical laboratory, as shown in Figure 1, it is connected with the branch road of at least three parallel connections for valve 30 to be housed between exhaust apparatus 1 and valve 30 on the trunk line 20 that existing exhaust apparatus 1 (for example exhausting motor) connects later.
Branch road one is: be connected with a branch pipe(tube) 21 on the trunk line 20, it links to each other with the porous pot 26 that is fixed on absorption cell 41 bottoms by a flexible pipe 24; On the described branch pipe(tube) 21 valve 31 is housed; Described porous pot 26 has the aperture of several diameters less than 10mm at the bottle that is higher than the 20mm place on the wall, and the marginating compartment of adjacent aperture is no more than 10mm
Branch road two is: be connected with a branch pipe(tube) 22 on the trunk line 20, it links to each other with the porous pot 27 that is fixed on absorption cell 42 bottoms by a flexible pipe 25; On the described branch pipe(tube) 22 valve 32 is housed; Described porous pot 27 has the aperture of several diameters less than 10mm at the bottle that is higher than the 20mm place on the wall, and the marginating compartment of adjacent aperture is no more than 10mm;
Branch road three is: trunk line 20 links to each other with absorbing column 43 by a branch pipe(tube) 23, on the described branch pipe(tube) 23 valve 33 is housed;
The tank body that described absorption cell 41/42 makes for materials such as the polytetrafluoroethylene (PTFE) of acid and alkali resistance corrosion or fluorubber; The top of its tank body has the import 51/52 of absorption liquid, and the below has the outlet 61/62 of absorption liquid; The top of tank body is gas outlet 71/72, and the top of gas outlet is equipped with rain-proof shed 81/82;
The breadboard waste acid liquor of high 1/3～1/2 height in pond is housed in the described absorption cell 41, makes waste acid liquor submergence porous pot 26 aperture topmost;
The breadboard spent caustic solution of high 1/3～1/2 height in pond is housed in the described absorption cell 42, makes spent caustic solution submergence porous pot 27 aperture topmost;
The dividing plate 9 of 2 porous is housed, therebetween the active carbon 11 that is wrapped in for gauze layer 90 in the described absorbing column 43; The lower end of absorbing column has gas outlet 73.
Can be connected with other branch road between exhaust apparatus 1 and valve 30 according to breadboard actual needs, the structure of branch road and principle are same as branch road one or three, corresponding energy is housed in absorption cell or absorbing column absorbs waste liquid or the column packing that needs to handle waste gas.
The absorption system of the discharge gas that is used for chemical laboratory that the utility model provides compared with prior art, its advantage is:
1, this system utilizes the waste gas that the waste liquid absorption experiment chamber of laboratory generation produces, and has handled two kinds of pollutants simultaneously, has solved the pollution of the gas of chemical laboratory discharge to air, has also solved the harm of the waste liquid of chemical laboratory discharge to environment.
2, this system has increased the contact area of gas and solution by several apertures on the porous pot wall in the absorption liquid that submerges, and has prolonged the time of contact of gas and solution, has improved absorption efficiency.
3, this system is simple, and is convenient, is particularly useful for pollutant levels and is not laboratories such as very big chemistry, biology.
Description of drawings
The schematic diagram of the absorption system of the discharge gas that is used for chemical laboratory that Fig. 1 provides for the utility model;
Wherein, 1 exhaust apparatus, 20 trunk lines, 21 branch pipe(tube)s, 22 branch pipe(tube)s, 23 branch pipe(tube)s, 24 flexible pipes, 25 flexible pipes, 26 porous pots, 27 porous pots, 30 valves, 31 valves, 32 valves, 41 absorption cells, 42 absorption cells, 43 absorbing columns, 51 absorption liquid imports, 52 absorption liquid imports, the outlet of 61 absorption liquids, the outlet of 62 absorption liquids, 71 gas outlets, 72 gas outlets, 73 gas outlets, 81 is rain-proof shed, 82 is rain-proof shed, 9 dividing plates, 90 gauze layers, 11 active carbons.91 bolts, 92 bolts, 93 bolts, 94 bolts, 95 bolts, 96 bolts, 101 draw-in grooves, 102 draw-in grooves.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further detailed.
Fig. 1 is the example that the absorption system of gas is discharged in a laboratory of the present utility model.As shown in the figure, at existing exhaust apparatus---on the trunk line 20 that exhausting motor 1 connects later valve 30 is housed, between motor and valve 30, is connected with the branch road of three parallel connections:
Branch road one comprises branch pipe(tube) 21, porous pot 26 and the absorption cell 41 of breadboard waste acid liquor is housed.The branch pipe(tube) 21 that is connected on the trunk line 20 is the circular pipe of a diameter 75mm, and valve 31 is housed on it, and links to each other with the porous pot 26 that is fixed on absorption cell 41 bottoms by a flexible pipe 24.
Absorption cell 41 is the elliptical cylinder-shape tank body that an acidproof polytetrafluoroethylene (PTFE) makes, upper diameter 95mm, the diameter 375mm that goes to the bottom, middle the widest part diameter 500mm; Wide diameter place is about 250mm far from the bottom; The absorption cell height is 550mm; The breadboard waste acid liquor of high 185～275mm wherein is housed.The top of tank body has the import 51 of absorption liquid, and the below has the outlet 61 of absorption liquid; The top of tank body is gas outlet 71, and the top of gas outlet is equipped with rain-proof shed 81; Tank body top is openable, passes through bolt 91 and 92 driving fits during use, and after bolt 91 and 92 was turned on, opened on the tank body top of absorption cell, can easily porous pot be taken out and clean or change.
Porous pot 26 high 200mm, (the porous pot diameter is slightly less than 75mm, with convenient be connected with flexible pipe 24) has on bottle wall at high 20～180mm place and 11 * 10 arranges, diameter is less than the aperture of 10mm, and the marginating compartment of adjacent aperture is no more than 10mm; The bottom of porous pot 26 is fixed on absorption cell 41 bottoms by draw-in groove 101.
Branch road two comprises branch pipe(tube) 22, porous pot 27 and the absorption cell 42 of breadboard spent caustic solution is housed.On it structure of each parts with the size with branch road one in parts all identical.The branch pipe(tube) 22 that is connected on the trunk line 20 is the circular pipe of a diameter 75mm, and valve 32 is housed on it, and links to each other with the porous pot 27 that is fixed on absorption cell 42 bottoms by a flexible pipe 25.
Absorption cell 42 is the elliptical cylinder-shape tank body that an alkaline-resisting polytetrafluoroethylene (PTFE) makes, upper diameter 95mm, the diameter 375mm that goes to the bottom, middle the widest part diameter 500mm; Wide diameter place is about 250mm far from the bottom; The absorption cell height is 550mm; The breadboard waste acid liquor of high 185～275mm wherein is housed.The top of tank body has the import 52 of absorption liquid, and the below has the outlet 62 of absorption liquid; The top of tank body is gas outlet 72, and the top of gas outlet is equipped with rain-proof shed 82; Tank body top is openable, passes through bolt 93 and 94 driving fits during use, and after bolt 93 and 94 was turned on, opened on the tank body top of absorption cell, can easily porous pot be taken out and clean or change.
Porous pot 27 high 200mm (the porous pot diameter is slightly less than 75mm, with convenient be connected) with flexible pipe 25, on bottle wall at high 20～180mm place, have 11 * 10 arrange, diameter is less than the aperture of 10mm, the marginating compartment of adjacent aperture is no more than 10mm; The bottom of porous pot 27 is fixed on absorption cell 42 bottoms by draw-in groove 102.
Branch road three comprises branch pipe(tube) 23 and the absorbing column 43 of active carbon is housed.The branch pipe(tube) 23 that is connected on the trunk line 20 is the circular pipe of a diameter 75mm, and it links to each other with absorbing column 43, on the described branch pipe(tube) 23 valve 33 is housed.The dividing plate 9 of 2 porous is housed, therebetween the active carbon 11 that is wrapped in for gauze layer 90 in the described absorbing column 43; The lower end of absorbing column has gas outlet 73 (bore is 75mm).Tank body top is openable, passes through bolt 95 and 96 driving fits during use, and after bolt 95 and 96 was turned on, opened on the top of absorbing column, can change column packing easily.
When using the absorption system of the discharge gas that is used for chemical laboratory that the utility model provides, can be according to the type and the content of discharging waste gas in the gas (laboratory exhaust gas), utilize valve 31,31,33 and 30 to control the flow direction of gas, enter different absorption cells with making the discharge gas-selectively and be absorbed:
Do not have toxicity when (as only containing steam) if 1 discharges gas, the valve 31,31,33 at all arm places can be closed, open the valve 30 on the trunk line simultaneously, discharge gas and directly discharge from the outlet of afterbody.
Be mainly alkaline gas if 2 discharge gas, then open the valve 31 at arm 21 places, close the valve 32 at arm 22 places and the valve 33 at arm 23 places, and close valve 30 on the trunk line, after the waste acid liquor of alkalescence waste gas in absorption cell 41 absorbs, discharge gas and discharge from the gas outlet 71 at the top of absorption cell 41 tank bodies.
Be mainly sour gas if 3 discharge gas, then open the valve 32 at arm 22 places, close the valve 31 at arm 21 places and the valve 33 at arm 23 places, and close valve 30 on the trunk line, after the spent caustic solution of acid waste gas in absorption cell 42 absorbs, discharge gas and discharge from the gas outlet 72 at the top of absorption cell 42 tank bodies.
If 4 discharge gases when being mainly various organic pollution such as CO, formaldehyde, benzene series thing, then open the valve 33 at arm 23 places, close the valve 31 at arm 21 places and the valve 32 at arm 22 places, and close valve 30 on the trunk line, after the active carbon 11 of these waste gas in absorbing column 43 absorbs, discharge gas and discharge from the gas outlet 73 of absorbing column 43 lower ends.
Claims (6)
1, a kind of absorption system that is used for the discharge gas of chemical laboratory, it is connected with the branch road of at least three parallel connections for a valve to be housed between exhaust apparatus and this valve on the trunk line that existing exhaust apparatus connects later, it is characterized in that:
Described branch road one and two is: be connected with a branch pipe(tube) on the trunk line, it links to each other with the porous pot that is fixed on the absorption cell bottom by a flexible pipe; On the described branch pipe(tube) valve is housed; Described porous pot has several apertures on the bottle wall of bottom; High 1/3～1/2 high absorption liquid in pond is housed in the described absorption cell, and absorption liquid submergence porous pot aperture topmost;
Described branch road three is: trunk line links to each other with absorbing column by a branch pipe(tube), on the described branch pipe(tube) valve is housed; The dividing plate of 2 porous is housed, therebetween the active carbon that is wrapped in for gauze layer in the described absorbing column; The lower end of absorbing column has the gas outlet.
2, the absorption system that is used for the discharge gas of chemical laboratory as claimed in claim 1 is characterized in that: described absorption cell is the polytetrafluoroethylene (PTFE) of acid and alkali resistance corrosion or the tank body that fluorubber makes.
3, the absorption system that is used for the discharge gas of chemical laboratory as claimed in claim 1, it is characterized in that: the top of the tank body of described absorption cell has the import of absorption liquid, and the below has the outlet of absorption liquid.
4, the absorption system that is used for the discharge gas of chemical laboratory as claimed in claim 1, it is characterized in that: the top of the tank body of described absorption cell is the gas outlet, and the top of gas outlet is equipped with rain-proof shed.
5, the absorption system that is used for the discharge gas of chemical laboratory as claimed in claim 1, it is characterized in that: described absorption liquid is breadboard spent acid or spent caustic solution.
6, the absorption system that is used for the discharge gas of chemical laboratory as claimed in claim 1, it is characterized in that: the hole diameter on the described porous pot is less than 10mm, and the marginating compartment of adjacent aperture is no more than 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520112256 CN2764470Y (en) | 2005-07-01 | 2005-07-01 | Exhaust gas absorption system for chemical laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520112256 CN2764470Y (en) | 2005-07-01 | 2005-07-01 | Exhaust gas absorption system for chemical laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2764470Y true CN2764470Y (en) | 2006-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520112256 Expired - Fee Related CN2764470Y (en) | 2005-07-01 | 2005-07-01 | Exhaust gas absorption system for chemical laboratory |
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| CN (1) | CN2764470Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091497A (en) * | 2011-01-13 | 2011-06-15 | 孔黄宽 | Method for treating waste gas discharged from continuously running laboratory |
| CN101480557B (en) * | 2008-01-10 | 2012-06-06 | 江苏江分电分析仪器有限公司 | Noxious gas absorbing apparatus |
| CN103785274A (en) * | 2012-10-29 | 2014-05-14 | 中国石油化工集团公司 | Method for processing waste gases and waste liquids in laboratory |
| CN105834190A (en) * | 2016-05-25 | 2016-08-10 | 湖南省金润碲业有限公司 | Device for classified transportation of waste gas to different waste gas treatment chambers |
| CN109231514A (en) * | 2018-09-07 | 2019-01-18 | 河北地质大学 | laboratory environment safety control system |
| CN110726143A (en) * | 2019-10-17 | 2020-01-24 | 芜湖耀迪环保科技有限公司 | Novel incineration boiler for recycling garbage |
| CN113457384A (en) * | 2021-06-17 | 2021-10-01 | 苏州中科国源检测技术服务有限公司 | High-efficient acid mist absorption system of dispelling |
-
2005
- 2005-07-01 CN CN 200520112256 patent/CN2764470Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480557B (en) * | 2008-01-10 | 2012-06-06 | 江苏江分电分析仪器有限公司 | Noxious gas absorbing apparatus |
| CN102091497A (en) * | 2011-01-13 | 2011-06-15 | 孔黄宽 | Method for treating waste gas discharged from continuously running laboratory |
| CN103785274A (en) * | 2012-10-29 | 2014-05-14 | 中国石油化工集团公司 | Method for processing waste gases and waste liquids in laboratory |
| CN103785274B (en) * | 2012-10-29 | 2015-12-16 | 中国石油化工集团公司 | A kind of method for laboratory exhaust gas liquid waste processing |
| CN105834190A (en) * | 2016-05-25 | 2016-08-10 | 湖南省金润碲业有限公司 | Device for classified transportation of waste gas to different waste gas treatment chambers |
| CN109231514A (en) * | 2018-09-07 | 2019-01-18 | 河北地质大学 | laboratory environment safety control system |
| CN109231514B (en) * | 2018-09-07 | 2021-07-13 | 河北地质大学 | Laboratory environment safety control system |
| CN110726143A (en) * | 2019-10-17 | 2020-01-24 | 芜湖耀迪环保科技有限公司 | Novel incineration boiler for recycling garbage |
| CN113457384A (en) * | 2021-06-17 | 2021-10-01 | 苏州中科国源检测技术服务有限公司 | High-efficient acid mist absorption system of dispelling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060315 |