CN212757292U - Device for recovering organic solvent in negative-pressure waste gas - Google Patents
Device for recovering organic solvent in negative-pressure waste gas Download PDFInfo
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- CN212757292U CN212757292U CN202020965641.1U CN202020965641U CN212757292U CN 212757292 U CN212757292 U CN 212757292U CN 202020965641 U CN202020965641 U CN 202020965641U CN 212757292 U CN212757292 U CN 212757292U
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Abstract
The utility model discloses a retrieve device of organic solvent in negative pressure waste gas, including the refrigerator, retrieve the ice water case, condenser and collection tank, it is provided with the heat exchanger to retrieve the ice water incasement, the upper portion of retrieving the ice water case is provided with the inlet tube, the inlet tube sets up in the top of heat exchanger and stretches into in retrieving the ice water case, the lower extreme of retrieving the ice water case is provided with the outlet pipe, the outlet pipe is connected with the water pump, the water pump is connected with the condenser through the pipeline, be provided with into the exhaust pipe on the condenser, the condenser links to each other with the inlet tube on retrieving the ice water case through the pipeline, the condenser has the vacuum pump. The device has high recovery efficiency, and can recycle the organic solvent, thereby achieving the purposes of reducing environmental pollution, reducing resource waste and realizing circular economy.
Description
Technical Field
The utility model belongs to the technical field of organic waste gas treatment, concretely relates to retrieve organic solvent's in negative pressure waste gas device.
Background
The organic solvent is a high molecular compound and is widely applied to chemical industry, pharmaceutical industry and food industry, common organic solvents comprise alcohols, esters, ketones, chlorohydrocarbons and the like, some solvents have certain toxicity, gases generated in the production process have certain harm to the environment and human bodies, and the harm of the organic solvent to the environment and the human bodies can be reduced to the maximum extent only by effectively recycling the organic solvent in the industrial production.
The organic solvent recovery processes are carried out under the solvent vaporization condition, generally, cooling water is used for indirect heat exchange, so that solvent steam is cooled and then becomes liquid for recovery, due to climate change factors, the temperature of condensed water for cooling the solvent at normal temperature is greatly changed, particularly, the temperature of water is high in summer, so that a large amount of solvent gas or non-condensable gas is generated during solvent recovery, the solvent gas cannot be recovered at normal temperature, the gas is discharged along with a pipeline, the escape of the part of the solvent gas can cause the rapid increase of solvent consumption in the production process, on one hand, the solvent consumption is increased, the production cost is increased, on the other hand, unsafe factors in a production area are generated, and the production process is not allowable.
The traditional solvent recovery method comprises a solvent absorption method, an activated carbon adsorption method, a condensation method and the like. The absorption method is based on the principle that similar and compatible chemical organic matters are utilized, organic matters with similar chemical properties are utilized to absorb a solvent in industrial production, specifically, gas of an organic solvent to be recovered passes through some oily liquid, the gas and the liquid move in a reverse direction, and the solvent is dissolved into the oily liquid, so that the solvent is recovered. The condensation method is to condense the organic solvent from the gas mainly by normal temperature water cooling, and directly recover the organic solvent, and generally 80% of the organic solvent can be recovered.
The absorption method has the defects that the power consumption is large, the absorbed organic solvent must be heated and evaporated again to release the absorbed solvent, the production process is complicated, and the solvent can escape again in the evaporation process; the condensation method is to recover at normal temperature, and the recovery rate of the solvent is low; the activated carbon adsorption method is to use activated carbon to adsorb a solvent, heat the solvent after the solvent is adsorbed and saturated, and evaporate the solvent.
These methods, although effective, have certain disadvantages in terms of investment, operating costs, maintenance and safety.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned shortcoming that exists among the prior art, provide a retrieve organic solvent's in negative pressure waste gas device, the device recovery efficiency is high, makes organic solvent resourceization to reach and reduce environmental pollution, reduce the wasting of resources, realize circular economy's purpose.
In order to realize the purpose, the utility model discloses a technical scheme as follows: including the refrigerator, retrieve the ice water case, condenser and holding vessel, be provided with the heat exchanger in retrieving the ice water case, the upper portion of retrieving the ice water case is provided with the inlet tube, the inlet tube setting is in the top of heat exchanger and stretch into retrieves the ice water case, the lower extreme of retrieving the ice water case is provided with the outlet pipe, the outlet pipe is connected with the water pump, the water pump is connected with the condenser through the pipeline, be provided with into the exhaust pipe on the condenser, the condenser links to each other with the inlet tube on retrieving the ice water case through the pipeline, the condenser has the vacuum pump through the.
In the present invention, further, the condenser is provided with one or more.
The utility model discloses in, preferred, the inlet tube is the J type, and the opening is down and the open end is located the heat exchanger top.
The ice water with the temperature of minus 20 ℃ enters a condenser to cool the organic waste gas introduced into the condenser, the organic solvent in the organic waste gas is condensed into liquid, the ice water with the temperature of minus 20 ℃ is heated into normal temperature water, the normal temperature water flows back to a recycling ice water tank, and the ice water is cooled into the ice water with the temperature of minus 20 ℃ after heat exchange by a heat exchanger.
The utility model has the advantages that: (1) the organic waste gas after being condensed and recovered by the cooling water still contains a certain amount of organic solvent, and the organic solvent recovery is carried out on the organic waste gas by circulating the chilled water, so that the recovery rate of the organic solvent can reach 98 percent, and the energy consumption is low; (2) the open end of inlet tube is located the heat exchanger top, and normal atmospheric temperature water flows from the inlet tube, and the rivers directly pass the heat exchanger, and heat exchange efficiency is high.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings and reference numerals used in the description of the embodiments are briefly introduced below.
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
Description of reference numerals: 1-a refrigerator, 2-a ice water recovery tank, 3-a condenser, 4-a collection tank, 5-a heat exchanger, 6-a water inlet pipe, 7-a water outlet pipe, 8-a water pump, 9-an exhaust gas inlet pipe, 10-a vacuum pump, 31-a first condenser and 32-a second condenser.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Embodiment 1, refer to fig. 1, including refrigerator 1, retrieve ice water tank 2, condenser 3 and collection tank 4, condenser 3 is provided with one, be provided with heat exchanger 5 in retrieving ice water tank 2, the upper portion of retrieving ice water tank 2 is provided with inlet tube 6, inlet tube 6 sets up in heat exchanger 5's top and stretches into in retrieving ice water tank 2, the lower extreme of retrieving ice water tank 2 is provided with outlet pipe 7, outlet pipe 7 is connected with water pump 8, water pump 8 is connected with condenser 3 through the pipeline, be provided with into exhaust pipe 9 on condenser 3, condenser 3 links to each other with inlet tube 6 on retrieving ice water tank 2 through the pipeline, condenser 3 has vacuum pump 10 through the pipe connection, condenser 3 is connected with collection tank 4.
The inlet pipe 6 is J-shaped, the opening of which faces downwards and the opening end of which is positioned above the heat exchanger 5.
The inlet pipe 6 is J-shaped, the opening of which faces downwards and the opening end of which is positioned above the heat exchanger 5.
The working principle is as follows: the ice water with the temperature of minus 20 ℃ enters a condenser to cool the organic waste gas introduced into the condenser, the organic solvent in the organic waste gas is condensed into liquid, the ice water with the temperature of minus 20 ℃ is heated into normal temperature water, the normal temperature water flows back to a recycling ice water tank, and the ice water is cooled into the ice water with the temperature of minus 20 ℃ after heat exchange by a heat exchanger.
It should be noted that the above describes exemplifying embodiments of the invention. However, it should be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, which are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the scope of the present invention, and the changes and modifications are intended to fall within the scope of the present invention as claimed.
Claims (3)
1. The utility model provides a retrieve organic solvent's in negative pressure waste gas device, includes the refrigerator, retrieves ice water tank, condenser and holding vessel, its characterized in that: the device comprises a water tank, a heat exchanger, a water inlet pipe, a water outlet pipe, a water pump, a condenser, a waste gas inlet pipe, a vacuum pump and a collecting tank, wherein the heat exchanger is arranged in the water tank, the water inlet pipe is arranged on the upper portion of the water tank, the water inlet pipe is arranged above the heat exchanger and stretches into the water tank, the lower end of the water tank is provided with the water outlet pipe, the water outlet pipe is connected with the water pump, the water pump is connected with the condenser through a pipeline, the condenser is provided with the waste gas inlet pipe, the condenser is connected with.
2. The apparatus for recovering organic solvent in negative pressure exhaust gas according to claim 1, wherein: the condenser is provided with one or more.
3. The apparatus for recovering organic solvent in negative pressure exhaust gas according to claim 1, wherein: the inlet tube is J type, and the opening is down and the open end is located the heat exchanger top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020965641.1U CN212757292U (en) | 2020-06-01 | 2020-06-01 | Device for recovering organic solvent in negative-pressure waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020965641.1U CN212757292U (en) | 2020-06-01 | 2020-06-01 | Device for recovering organic solvent in negative-pressure waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212757292U true CN212757292U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202020965641.1U Active CN212757292U (en) | 2020-06-01 | 2020-06-01 | Device for recovering organic solvent in negative-pressure waste gas |
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| Country | Link |
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| CN (1) | CN212757292U (en) |
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2020
- 2020-06-01 CN CN202020965641.1U patent/CN212757292U/en active Active
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