CN216778372U - Recovery system of waste gas containing water-soluble substances - Google Patents
Recovery system of waste gas containing water-soluble substances Download PDFInfo
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- CN216778372U CN216778372U CN202123450166.8U CN202123450166U CN216778372U CN 216778372 U CN216778372 U CN 216778372U CN 202123450166 U CN202123450166 U CN 202123450166U CN 216778372 U CN216778372 U CN 216778372U
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- liquid separator
- waste gas
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Abstract
The utility model discloses a recovery system of waste gas containing water-soluble substances, which comprises a condenser, a gas-liquid separator, a fan and a recovery tower which are sequentially arranged along a transmission path of the waste gas, wherein the bottom of the condenser is communicated with a waste gas inlet pipeline, the top of the condenser is communicated with the gas-liquid separator, and the top of the gas-liquid separator is communicated with the fan. According to the recovery system of the waste gas containing the water-soluble substances, the waste gas enters the condenser for condensation before entering the recovery tower, then enters the gas-liquid separator for gas-liquid separation, and finally enters the recovery tower, so that the condensate obtained by front-end condensation has high purity, the concentration can reach more than 90%, and the energy consumption is saved for the rectification and purification of the later recovered liquid; through condensation and gas-liquid separation at the front end, about 30 percent of solvent amount can be basically condensed and recovered, and further, the design requirement of a subsequent recovery tower can be reduced.
Description
Technical Field
The utility model belongs to the technical field of waste gas treatment, and particularly relates to a recovery system suitable for water-soluble single-substance (containing DMF, DMAC or NMP and the like) waste gas.
Background
Industries such as textile finishing, electronic chip, lithium battery manufacturing and the like often use organic solvents such as DMF, DMAC, NMP and the like which are easily absorbed by water, and after high-temperature drying, the solvents are discharged along with waste gas. Such exhaust gas treatment is required to avoid adverse environmental effects.
The method in the prior art is to directly introduce the gas containing one of the substances generated in the production process into a water spray tower, and the gas is absorbed into water to form an aqueous solution by utilizing the water-soluble characteristic of the gas. Most of the equipment in the prior art is singly recycled or absorbed by water, and is recycled without series connection, so that the following problems exist: 1. after the high-temperature waste gas is sprayed by water, the water vapor is very large, and the visual effect of chimney smoke discharge is poor; 2. the single condensation process has low recovery efficiency; 3. the concentration of water absorption and recovery is low, and the effect is poor.
SUMMERY OF THE UTILITY MODEL
In view of the above, in order to overcome the defects of the prior art, the present invention aims to provide a recovery system for waste gas containing water-soluble substances, which can effectively recover part of the solvent before the waste gas enters a recovery tower.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a recovery system who contains water-soluble material waste gas, includes condenser, vapour and liquid separator, fan and the recovery tower that sets gradually on the transmission path along waste gas, the bottom and the waste gas admission line intercommunication of condenser, the top of condenser with vapour and liquid separator intercommunication, vapour and liquid separator's top with the fan intercommunication.
According to some preferred embodiments of the present invention, the top of the condenser is communicated with the gas-liquid separator through a first communication pipe; the gas-liquid separator comprises an outer barrel and an inner barrel (a turning plate), and the first communication pipe is arranged between the outer barrel and the condenser and corresponds to the inner barrel. Waste gas enters between the inner cylinder and the outer cylinder of the gas-liquid separator through the first communication pipe, liquid or solid finally enters the collection box downwards through the blocking of the inner cylinder, and gas enters the fan through the inner cylinder.
According to some preferred embodiments of the present invention, the gas-liquid separator is communicated with the fan through a second communication pipe, one end of the second communication pipe is communicated with the fan, and the other end of the second communication pipe is communicated with the inner cylinder.
According to some preferred embodiments of the present invention, the second communication pipe includes a horizontal portion, and first and second arc portions respectively provided at both end portions of the horizontal portion, the first arc portion communicating the horizontal portion with the inner tub, and the second arc portion communicating the blower with the horizontal portion. The second communicating pipe is arranged in an inverted U shape, so that the gas coming from the inner cylinder passes through the transition of the first arc-shaped part, and the solid or liquid in the gas is further separated.
According to some preferred aspects of the present invention, the first communication pipe and the exhaust gas inlet pipe are respectively located at opposite sides of the condenser to better condense the exhaust gas.
According to some preferred aspects of the utility model, a collection tank is included in communication with the bottom of the gas-liquid separator and the bottom of the condenser for collecting liquid.
According to some preferred embodiment aspects of the utility model, the condenser is a shell and tube condenser.
According to some preferred embodiment aspects of the present invention, the gas-liquid separator is a cyclone (cyclone).
According to some preferred embodiment aspects of the utility model, the gas-liquid separator is a mechanical demister (dust catcher).
According to some preferred implementation aspects of the utility model, the outlet of the fan extends into the recovery tower and faces the lower part of the recovery tower, so that the waste gas has inertia moving obliquely downwards when entering the recovery tower, and better spray absorption is realized.
Compared with the prior art, the utility model has the advantages that: according to the recovery system for the waste gas containing the water-soluble substances, the waste gas enters the condenser for condensation before entering the recovery tower, then enters the gas-liquid separator for gas-liquid separation, and finally enters the recovery tower, so that the condensate obtained by front-end condensation has high purity, the concentration can reach more than 90%, and the energy consumption is saved for the rectification and purification of the later recovered liquid; through condensation and gas-liquid separation at the front end, about 30% of solvent amount can be condensed and recovered basically, and further the design requirement of a rear recovery tower can be reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram showing the construction of a water-soluble substance-containing exhaust gas recovery system according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating the operation of a water-soluble substance containing waste gas recovery system according to a preferred embodiment of the present invention;
wherein the reference numerals include: the device comprises an air inlet pipeline-1, a condenser-2, a first communicating pipe-3, a gas-liquid separator-4, an inner cylinder-41, an outer cylinder-42, a second communicating pipe-5, a first arc-shaped part-51, a second arc-shaped part-52, a horizontal part-53, a fan-6, a recovery tower-7, a water pump-8 and a collecting box-9.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 2, the system for recovering waste gas containing water-soluble substances in the present embodiment includes a condenser 2, a gas-liquid separator 4, a fan 6, and a recovery tower 7, which are sequentially disposed along a transport path of waste gas, and a water pump 8 is disposed on the recovery tower 7. The bottom of condenser 2 and waste gas inlet line 1 intercommunication, the top and the vapour and liquid separator 4 intercommunication of condenser 2, the top and the fan 6 intercommunication of vapour and liquid separator 4, the bottom of vapour and liquid separator 4 and the bottom of condenser 2 still all communicate with collecting box 9 in order to be used for collecting liquid. The condenser 2 in this embodiment is a shell and tube condenser 2; the gas-liquid separator 4 is a cyclone (cyclone dust collector). The outlet of the fan 6 extends into the recovery tower 7 and faces the lower part of the recovery tower 7, so that the waste gas has inertia moving obliquely downwards when entering the recovery tower 7, and better spraying absorption is realized.
The top of the condenser 2 is communicated with the gas-liquid separator 4 through a first communication pipe 3; the gas-liquid separator 4 includes an outer tube 42 and an inner tube 41 (return plate), and the first communication pipe 3 is provided between the outer tube 42 and the condenser 2 and is provided corresponding to the inner tube 41. The waste gas enters between the inner cylinder 41 and the outer cylinder 42 of the gas-liquid separator 4 through the first communication pipe 3, the liquid or the solid is caused to finally enter the collection box 9 downwards through the blocking of the inner cylinder 41, and the gas enters the fan 6 through the inner cylinder 41. The first communicating pipe 3 and the exhaust gas inlet pipe 1 are respectively located at two opposite sides of the condenser 2 to better condense the exhaust gas.
The gas-liquid separator 4 is communicated with the fan 6 through a second communicating pipe 5, one end of the second communicating pipe 5 is communicated with the fan 6, and the other end of the second communicating pipe 5 is communicated with the inner cylinder 41. The second communication pipe 5 includes a horizontal portion 53, and a first arc portion 51 and a second arc portion 52 respectively provided at both end portions of the horizontal portion 53, the first arc portion 51 communicating the horizontal portion 53 and the inner cylinder 41, and the second arc portion 52 communicating the blower 6 and the horizontal portion 53. That is, the second communication pipe 5 is provided in an inverted U shape, so that the gas coming from the inner cylinder 41 passes through the first arc-shaped portion 51, and the solid, liquid, and the like in the gas are further separated.
The operation of the recovery system for waste gas containing water-soluble substances in this embodiment is briefly described as follows:
the production waste gas enters the condenser 2 through the gas inlet pipeline 1, and part of liquid in the waste gas is condensed and flows into the collection box 9; the waste gas then enters the gas-liquid separator 4 through the first communicating pipe 3, the liquid or solid is finally led to the collecting box 9 downwards through the blocking of the inner cylinder 41 in the gas-liquid separator 4, the gas enters the fan 6 through the inner cylinder 41 and the second communicating pipe 5, and finally enters the recovery tower 7 through the fan 6.
According to the recovery system for the waste gas containing the water-soluble substances, the waste gas enters the condenser for condensation before entering the recovery tower, then enters the gas-liquid separator for gas-liquid separation, and finally enters the recovery tower, so that the condensate obtained by front-end condensation has high purity, the concentration can reach more than 90%, and the energy consumption is saved for the rectification and purification of the later recovered liquid; through condensation and gas-liquid separation at the front end, about 30% of solvent amount can be condensed and recovered basically, and further the design requirement of a rear recovery tower can be reduced.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the utility model, and not to limit the scope of the utility model, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a recovery system who contains water-soluble material waste gas, its characterized in that includes condenser, vapour and liquid separator, fan and the recovery tower that sets gradually on the transmission path along waste gas, the bottom and the waste gas admission line intercommunication of condenser, the top of condenser with vapour and liquid separator intercommunication, vapour and liquid separator's top with the fan intercommunication.
2. The recycling system according to claim 1, wherein the top of the condenser is communicated with the gas-liquid separator through a first communication pipe; the gas-liquid separator comprises an outer barrel and an inner barrel, and the first communication pipe is arranged between the outer barrel and the condenser and corresponds to the inner barrel.
3. The recycling system according to claim 2, wherein the gas-liquid separator is communicated with the fan through a second communicating pipe, one end of the second communicating pipe is communicated with the fan, and the other end of the second communicating pipe is communicated with the inner barrel.
4. The recycling system according to claim 3, wherein the second communicating pipe includes a horizontal portion, and a first arc portion and a second arc portion respectively provided at both end portions of the horizontal portion, the first arc portion communicating the horizontal portion and the inner tube, and the second arc portion communicating the blower and the horizontal portion.
5. A recovery system as claimed in claim 2, wherein the first communication duct and the exhaust gas inlet duct are located on opposite sides of the condenser, respectively.
6. A recovery system as claimed in claim 1, including a collection tank communicating with the bottom of the gas-liquid separator and the bottom of the condenser for collecting liquid.
7. The recovery system of claim 1, wherein the condenser is a shell and tube condenser.
8. The recovery system of claim 1, wherein the gas-liquid separator is a cyclone.
9. The recovery system of claim 1, wherein the gas-liquid separator is a mechanical demister.
10. The recovery system of claim 1, wherein the outlet of the fan extends into the recovery tower and toward a lower portion of the recovery tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123450166.8U CN216778372U (en) | 2021-12-30 | 2021-12-30 | Recovery system of waste gas containing water-soluble substances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123450166.8U CN216778372U (en) | 2021-12-30 | 2021-12-30 | Recovery system of waste gas containing water-soluble substances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216778372U true CN216778372U (en) | 2022-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202123450166.8U Active CN216778372U (en) | 2021-12-30 | 2021-12-30 | Recovery system of waste gas containing water-soluble substances |
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| Country | Link |
|---|---|
| CN (1) | CN216778372U (en) |
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2021
- 2021-12-30 CN CN202123450166.8U patent/CN216778372U/en active Active
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