CN211677059U - Laboratory exhaust treatment system - Google Patents
Laboratory exhaust treatment system Download PDFInfo
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- CN211677059U CN211677059U CN201922406167.9U CN201922406167U CN211677059U CN 211677059 U CN211677059 U CN 211677059U CN 201922406167 U CN201922406167 U CN 201922406167U CN 211677059 U CN211677059 U CN 211677059U
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Abstract
The utility model discloses a laboratory exhaust-gas treatment system belongs to the exhaust-gas treatment field. The device comprises a waste gas collecting device, a spray tower, a low-temperature dehydrator, an ultraviolet photolysis chamber, an active carbon adsorption chamber and a waste gas discharge port. A porous pipe connected with a waste gas collecting device is arranged at the bottom in the spray tower, washing liquid is contained in the spray tower, and the porous pipe is immersed in the washing liquid; a spraying device for spraying liquid is arranged above the washing liquid in the spraying tower; the spray tower pass through the breather pipe with the low temperature dehydrator is connected, low temperature dehydrator, ultraviolet photolysis room, active carbon adsorption chamber and exhaust emission connect gradually. The utility model discloses to laboratory waste gas in proper order through washing, spray, dewatering, ultraviolet photolysis and active carbon adsorption's processing procedure, fully get rid of inorganic pollutant and volatile organic compounds etc. in the laboratory waste gas. And the utility model has the advantages of simple structure, low use cost, simple and convenient maintenance and simple and easily obtained material consumption.
Description
Technical Field
The utility model relates to a waste gas treatment technical field especially indicates a laboratory exhaust-gas treatment system.
Background
In the course of laboratory experiments, waste gas is often generated, and the main pollutants of laboratory waste gas include inorganic pollutants and Volatile Organic Compounds (VOCs), and the inorganic pollutants include hydrogen fluoride, sulfur dioxide, hydrogen chloride, chlorine, hydrogen sulfide, nitrogen oxides, various acid mists, and the like. Laboratory exhaust gas is not paid sufficient attention because of small and discontinuous discharge capacity, and is generally directly discharged into the atmosphere. However, the laboratory waste gas pollutants are of different types, high in concentration and strong in toxicity, and the influence on people and the environment cannot be ignored.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a laboratory exhaust treatment system, the utility model discloses can fully get rid of the pollutant in the laboratory waste gas, simple structure, use cost are low, maintain portably, the consumptive material is simple easy.
The utility model provides a technical scheme as follows:
the utility model provides a laboratory exhaust-gas treatment system, includes waste gas collection device, spray column, low temperature dehydrator, ultraviolet photolysis room, active carbon adsorption room and exhaust emission mouth, wherein:
a porous pipe connected with a waste gas collecting device is arranged at the bottom in the spray tower, washing liquid is contained in the spray tower, and the porous pipe is immersed in the washing liquid; a spraying device for spraying liquid is arranged above the washing liquid in the spraying tower;
the spray tower pass through the breather pipe with the low temperature dehydrator is connected, low temperature dehydrator, ultraviolet photolysis room, active carbon adsorption chamber and exhaust emission connect gradually.
Furthermore, washing liquid and spray liquid are distilled water, spray set sprays inlet tube, spray pump and shower including connecting gradually, the water inlet that sprays the inlet tube is arranged in the washing liquid, be provided with a plurality of nozzles on the shower.
Furthermore, an active carbon filtering device is arranged between the spraying water inlet pipe and the spraying pipe.
Furthermore, a collecting tank for collecting condensed water is arranged at the bottom of the low-temperature dehydrator, and the collected condensed water flows back into the spray tower through a backflow pipeline.
Furthermore, the spray pipes are of a multi-layer structure distributed up and down.
Furthermore, the waste gas collecting device comprises a collecting pipe, a centrifugal pump is arranged on the collecting pipe, and the laboratory waste gas collected by the collecting pipe enters the perforated pipe after being pressurized by the centrifugal pump.
Further, a low-temperature water tank with a water storage tank is arranged above the low-temperature dehydrator and the ultraviolet photolysis chamber, low-temperature distilled water in the low-temperature water tank provides a refrigeration source for the low-temperature dehydrator, the low-temperature water tank is connected with the spray tower through a spray tower water replenishing pipe, and a water level switch is arranged in the spray tower.
Furthermore, a multi-parameter water quality probe is arranged on the part of the spray pipe, which is positioned outside the spray tower, a water level inspection window and a water quality parameter display screen are arranged on the low-temperature water tank, and the multi-parameter water quality probe is electrically connected with the water quality parameter display screen.
Further, the bottom of the spraying tower is provided with a drain pipe which is communicated with a laboratory wastewater treatment system, the drain pipe is provided with a first valve, and the spraying water inlet pipe is provided with a second valve.
Furthermore, the activated carbon adsorption chamber is connected with an exhaust funnel, the top end of the exhaust funnel is a waste gas discharge port, and the spray tower is arranged on the base.
The utility model discloses following beneficial effect has:
the utility model discloses to laboratory waste gas in proper order through washing, spray, dewatering, ultraviolet photolysis and active carbon adsorption's processing procedure, fully get rid of inorganic pollutant and volatile organic compounds etc. in the laboratory waste gas. And the utility model has the advantages of simple structure, low use cost, simple and convenient maintenance and simple and easily obtained material consumption.
Drawings
Fig. 1 is a schematic diagram of a laboratory exhaust treatment system according to the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The embodiment of the utility model provides a laboratory exhaust-gas treatment system, as shown in fig. 1, this laboratory exhaust-gas treatment system includes waste gas collection device 1, spray column 2, low temperature dehydrator 3, ultraviolet photolysis room 4, active carbon adsorption room 5 and exhaust-gas discharge mouth 6, wherein:
a perforated pipe 7 connected with the waste gas collecting device 1 is arranged at the bottom in the spray tower 1, washing liquid 8 is contained in the spray tower 1, and the perforated pipe 7 is immersed in the washing liquid 8; a spraying device 9 for spraying the spraying liquid is arranged above the washing liquid 8 in the spraying tower 1.
The spray tower 1 is connected with a low-temperature dehydrator 3 through a vent pipe 10, and the low-temperature dehydrator 3, the ultraviolet photolysis chamber 4, the activated carbon adsorption chamber 5 and the exhaust gas discharge port 6 are connected in sequence.
The utility model discloses when using, laboratory waste gas gets into the perforated pipe of spray column bottom after waste gas collection device collects, and the perforated pipe submergence has seted up a plurality of through-holes in the washing liquid on the lateral wall of perforated pipe. Laboratory waste gas gets into the washing liquid through the through-hole of porous pipe, and the washing liquid has purification absorption to inorganic pollutants such as water-soluble, acid territory in the waste gas (including hydrogen fluoride, sulfur dioxide, hydrogen chloride, chlorine, hydrogen sulfide, nitrogen oxide, various acid mist etc.). The laboratory waste gas enters the space above the washing liquid after being washed by the washing liquid. Then the spraying device sprays, so that the spraying liquid is uniformly distributed in a fog shape in the spraying tower and is fully contacted and mixed with the laboratory waste gas to form better gas-liquid intersection, and further purify and absorb inorganic pollutants such as water solubility, acid domain and the like.
The sprayed laboratory waste gas enters the low-temperature dehydrator through the vent pipe, and the low-temperature dehydrator utilizes the cold medium to treat the laboratory waste gas, so that the water vapor generated in the spraying process is discharged after being condensed at low temperature, and the water vapor in the laboratory waste gas is eliminated. Then introducing the laboratory waste gas into an ultraviolet photolysis chamber, and carrying out a series of chemical reactions on the volatile organic compounds by utilizing light energy under the condition of ultraviolet irradiation (if necessary, a catalyst is also needed), thereby degrading the volatile organic compounds which are not easy to be absorbed by the washing liquid and the spraying liquid. And finally, the laboratory waste gas passes through the activated carbon adsorption chamber, and pollutants in the laboratory waste gas are physically adsorbed and then discharged through the waste gas discharge port.
Waste liquid (including spraying liquid and washing liquid) generated in the spraying tower is treated by a sewage treatment system in a laboratory, and the adsorbed active carbon is treated by a hazardous waste treatment plant.
The utility model discloses to laboratory waste gas in proper order through washing, spray, dewatering, ultraviolet photolysis and active carbon adsorption's processing procedure, fully get rid of inorganic pollutant and volatile organic compounds etc. in the laboratory waste gas. And the utility model has the advantages of simple structure, low use cost, simple and convenient maintenance and simple and easily obtained material consumption.
The utility model discloses do not restrict the kind of washing liquid and spray liquid to the washing liquid is the example, and it can be various alkaline solution, also can be water etc. as long as can get rid of the acidic material in the waste gas can, spray liquid and arrange equally. In one embodiment, the cleaning solution and the spray solution are both distilled water. At this moment, the spraying device 9 comprises a spraying water inlet pipe 11, a spraying pump 12 and a spraying pipe 13 which are connected in sequence, a water inlet 14 of the spraying water inlet pipe 11 is positioned in the washing liquid 8, and a plurality of nozzles 15 are arranged on the spraying pipe 13.
The washing liquid of spray column bottom is simultaneously used as spraying liquid circulation, and the pump that sprays is installed by the spray column, and the centrifugal force that produces when the impeller of pump that sprays is high-speed rotatory makes distilled water obtain the energy, and the distilled water passes through behind the impeller promptly, and pressure energy and kinetic energy can both be improved to can be carried in the spray column of eminence, spout into in the waste gas from the nozzle. Meanwhile, negative pressure is formed at the inlet of the spraying pump, so that distilled water at the bottom of the spraying tower can be continuously sucked from the water inlet of the spraying water inlet pipe.
An active carbon filtering device 16 is arranged between the spraying water inlet pipe 11 and the spraying pipe 13, and when the distilled water in the spraying tower is used for spraying, the distilled water is filtered by the active carbon filtering device before spraying, so that impurities in the distilled water are eliminated.
As an improvement of the utility model, the 3 bottoms of low temperature dehydrator are provided with the collecting vat 17 that is used for collecting the comdenstion water, and the comdenstion water of collecting flows back through backflow pipeline 18 in spray column 2, carries out recycle.
The shower pipes 13 may be a multi-layer structure distributed up and down, and the liquid flow through each layer of shower pipes is equal.
The utility model discloses a waste gas collection device 1 includes collecting pipe 19, is provided with centrifugal pump 20 on the collecting pipe 19, and the laboratory waste gas that collecting pipe 19 collected gets into porous pipe 7 after centrifugal pump 20 pressurizes.
The low temperature basin 21 that has the storage water tank (the top of low temperature basin enlarges, forms the storage water tank) still is provided with above low temperature dehydrator 3 and ultraviolet photolysis room 4, and the low temperature distilled water in the low temperature basin 21 provides the refrigeration source for low temperature dehydrator 3 for the laboratory waste gas cooling through the low temperature basin, the vapor condensation. The water storage tank of the low-temperature water tank also has a water storage function, the low-temperature water tank 21 is connected with the spray tower 2 through a spray tower water replenishing pipe 22, and a water level switch is arranged in the spray tower 2. When the water quantity in the spray tower is insufficient or the spray tower discharges distilled water after being used for a period of time, the water level switch detects that the water level in the spray tower is insufficient, and the distilled water in the water storage tank of the low-temperature water tank replenishes water into the spray tower through the spray tower water replenishing pipe.
The distilled water in the spray tower can not be used after the concentration of the pollutants reaches a certain degree after being used for a period of time, and needs to be replaced. The part of the spray pipe 13 positioned outside the spray tower is provided with a multi-parameter water quality probe 23 for detecting the pollution degree of the distilled water. The low-temperature water tank 21 is provided with a water level inspection window 24 and a water quality parameter display screen 25, the multi-parameter water quality probe 23 is electrically connected with the water quality parameter display screen 25, and water quality parameters of the distilled water detected by the multi-parameter water quality probe and representing the pollution degree are displayed on the water quality parameter display screen.
The bottom of the spray tower 2 is provided with a drain pipe 26 which is used for being communicated with a laboratory wastewater treatment system, the drain pipe 26 is provided with a first valve 27, and the spray water inlet pipe 11 is provided with a second valve 28.
The activated carbon adsorption chamber 5 is connected with an exhaust funnel 29, the top end of the exhaust funnel 29 is a waste gas discharge port 6, and the spray tower 2 is arranged on a base 30.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a laboratory exhaust-gas treatment system, its characterized in that includes waste gas collection device, spray column, low temperature dehydrator, ultraviolet photolysis room, active carbon adsorption room and exhaust emission mouth, wherein:
a porous pipe connected with a waste gas collecting device is arranged at the bottom in the spray tower, washing liquid is contained in the spray tower, and the porous pipe is immersed in the washing liquid; a spraying device for spraying liquid is arranged above the washing liquid in the spraying tower;
the spray tower pass through the breather pipe with the low temperature dehydrator is connected, low temperature dehydrator, ultraviolet photolysis room, active carbon adsorption chamber and exhaust emission connect gradually.
2. The laboratory waste gas treatment system according to claim 1, wherein the washing liquid and the spraying liquid are distilled water, the spraying device comprises a spraying water inlet pipe, a spraying pump and a spraying pipe which are connected in sequence, a water inlet of the spraying water inlet pipe is located in the washing liquid, and a plurality of nozzles are arranged on the spraying pipe.
3. The laboratory exhaust treatment system according to claim 2, wherein an activated carbon filter device is disposed between the spray inlet pipe and the spray pipe.
4. The laboratory exhaust treatment system according to claim 2, wherein a collecting tank for collecting condensed water is arranged at the bottom of the low-temperature dehydrator, and the collected condensed water flows back into the spray tower through a return pipeline.
5. The laboratory exhaust treatment system according to claim 2, wherein the shower pipe has a multi-layer structure in which the shower pipes are arranged one above the other.
6. The laboratory exhaust treatment system according to any one of claims 2 to 5, wherein the exhaust gas collecting device comprises a collecting pipe, a centrifugal pump is arranged on the collecting pipe, and the laboratory exhaust collected by the collecting pipe enters the perforated pipe after being pressurized by the centrifugal pump.
7. The laboratory waste gas treatment system according to claim 6, wherein a low-temperature water tank with a water storage tank is arranged above the low-temperature dehydrator and the ultraviolet photolysis chamber, low-temperature distilled water in the low-temperature water tank provides a refrigeration source for the low-temperature dehydrator, the low-temperature water tank is connected with the spray tower through a spray tower water supply pipe, and a water level switch is arranged in the spray tower.
8. The laboratory exhaust treatment system according to claim 7, wherein a multi-parameter water quality probe is disposed on a portion of the spray pipe located outside the spray tower, a water level inspection window and a water quality parameter display screen are disposed on the low-temperature water tank, and the multi-parameter water quality probe is electrically connected to the water quality parameter display screen.
9. The laboratory waste gas treatment system according to claim 8, wherein a drain pipe for communicating with the laboratory waste water treatment system is provided at the bottom of the spray tower, a first valve is provided on the drain pipe, and a second valve is provided on the spray water inlet pipe.
10. The laboratory waste gas treatment system according to claim 9, wherein the activated carbon adsorption chamber is connected with an exhaust funnel, the top end of the exhaust funnel is a waste gas discharge port, and the spray tower is arranged on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922406167.9U CN211677059U (en) | 2019-12-27 | 2019-12-27 | Laboratory exhaust treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922406167.9U CN211677059U (en) | 2019-12-27 | 2019-12-27 | Laboratory exhaust treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211677059U true CN211677059U (en) | 2020-10-16 |
Family
ID=72795681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922406167.9U Active CN211677059U (en) | 2019-12-27 | 2019-12-27 | Laboratory exhaust treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211677059U (en) |
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2019
- 2019-12-27 CN CN201922406167.9U patent/CN211677059U/en active Active
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