CN220026531U - Exhaust treatment device for NMP production - Google Patents
Exhaust treatment device for NMP production Download PDFInfo
- Publication number
- CN220026531U CN220026531U CN202320922518.5U CN202320922518U CN220026531U CN 220026531 U CN220026531 U CN 220026531U CN 202320922518 U CN202320922518 U CN 202320922518U CN 220026531 U CN220026531 U CN 220026531U
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- CN
- China
- Prior art keywords
- condensation
- pipe
- wall
- tube
- treatment device
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000009833 condensation Methods 0.000 claims abstract description 60
- 230000005494 condensation Effects 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 12
- 239000002912 waste gas Substances 0.000 abstract description 30
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 24
- 239000007789 gas Substances 0.000 description 19
- 239000000498 cooling water Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to the technical field of waste gas treatment, and discloses a waste gas treatment device for NMP production, which comprises the following components: the treatment box and the air inlet pipe, the inner wall of the bottom of the treatment box is fixedly provided with a condensation outer pipe, the inner wall of the condensation outer pipe is fixedly provided with a condensation inner pipe through a bracket, the outer wall of the condensation inner pipe is provided with a spiral air deflector, the outer wall of the condensation inner pipe is provided with a heat conducting rod on one side of the spiral air deflector, one end of the condensation outer pipe is an open end, the other end of the condensation outer pipe is provided with a first cover plate, one end of the condensation inner pipe is sealed through the first cover plate.
Description
Technical Field
The utility model relates to the technical field of waste gas treatment, in particular to a waste gas treatment device for NMP production.
Background
A large amount of NMP (N-methyl pyrrolidone) waste gas can be generated in the stirring pulping and coating processes in the polar plate engineering, the NMP is widely applied to industries such as lithium batteries, high-grade coating, electronic insulation and the like, and the concentration of the waste gas is relatively high, the air quantity is large, and the recycling value of the single solvent component is high. The existing NMP waste gas treatment generally adopts condensation treatment, components after condensation and liquefaction are recovered by a storage tank, uncondensed waste gas is connected into an adsorption tower filled with a nano adsorbent for adsorption enrichment, and the waste gas can reach the discharge standard after adsorption.
The publication number is: the utility model patent of China of CN218421940U discloses an exhaust gas treatment device for NMP production, which comprises a base, wherein a purifying box and a treatment cylinder which is obliquely arranged are fixedly arranged at the top of the base through a bracket, an air inlet pipe is fixedly connected to the top of one end, far away from the purifying box, of the treatment cylinder, a liquid inlet pipe is fixedly connected to one end of a heat exchange pipe, a liquid outlet pipe is fixedly connected to the other end of the heat exchange pipe, through holes are uniformly formed in the surface of the treatment cylinder, a vent pipe is fixedly connected between the treatment cylinder and the purifying box, and a pump body is fixedly arranged on one side of the outer part of the purifying box; according to the utility model, NMP gas is fully contacted with the heat exchange tube or the guide cylinder, then the NMP gas is condensed to form water drops, and the water drops flow into the inner bottom of the treatment cylinder through the inclined guide cylinder, so that most NMP gas is conveniently converted into liquid form for recovery, and a small part of NMP gas is dissolved in solvent liquid, so that the NMP gas is effectively absorbed, and the NMP gas is prevented from being discharged into the air to cause environmental pollution.
The heat exchange tube is adopted in the prior art to cool and condense NMP waste gas, but the heat exchange tube is wrapped outside the guide cylinder, the waste gas passes through the inner side of the guide cylinder, when condensation is carried out, the condensation speed of waste gas contacting with the inner wall of the guide cylinder is higher, and the waste gas in the middle of the guide cylinder cannot be condensed because of higher temperature, so that the condensation of NMP waste gas is incomplete, and the condensation effect is poor.
Disclosure of Invention
The utility model aims to provide an exhaust gas treatment device for NMP production, which solves the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: an exhaust treatment device for NMP production, comprising: the treatment box and intake pipe, it is fixed equipped with the condensation outer tube to handle bottom of the case inner wall, the condensation outer tube inner wall is equipped with the condensation inner tube through the support is fixed, the condensation inner tube outer wall is equipped with the spiral aviation baffle, the condensation inner tube outer wall is located spiral aviation baffle one side and is equipped with the heat conduction stick, condensation outer tube one end is the open end, and the other end is equipped with first apron, condensation inner tube one end is sealed through first apron, and the other end is fixed to be equipped with the second apron, it is equipped with the intake pipe to handle box top and is close to second apron one end, first apron one side is equipped with the blast pipe, the condensation outer tube outer wall is equipped with the circulation cooling tube.
Furthermore, the circulating cooling pipe is spiral, one end is a water inlet, the other end is a water outlet, the center of the first cover plate is provided with a water outlet pipe, the center of the second cover plate is provided with a water inlet pipe, one end of the water inlet is connected with the water inlet pipe through a pipeline, and one end of the water outlet is connected with the water outlet pipe through a pipeline.
Further, a gap is reserved between the spiral air deflector and the inner wall of the condensing outer tube.
Further, one end of the exhaust pipe extends out of the treatment box.
Further, the heat conducting rods are in a plurality and are uniformly distributed on the outer wall of the condensation inner tube in a spiral shape.
Further, the exhaust pipe is positioned between the gap between the condensing outer pipe and the condensing inner pipe.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, when the waste gas treatment device for NMP production is used, waste gas enters the treatment box through the air inlet pipe, is discharged through the exhaust pipe after being guided by the spiral air deflector in the gap between the condensation outer pipe and the condensation inner pipe, cooling water is filled into the circulating cooling pipe and the condensation inner pipe in the waste gas discharging process, and heat exchange is carried out on the waste gas between the cooling water and the condensation outer pipe and the condensation inner pipe through the arrangement of the spiral air deflector and the heat conducting rod, so that the contact area of the waste gas and the condensation device is greatly increased, the heat exchange efficiency of the waste gas is improved, and the condensation effect of the waste gas is improved.
Drawings
FIG. 1 is a perspective view of an exhaust gas treatment device for NMP production according to the present utility model;
FIG. 2 is a front sectional view of an exhaust gas treatment device for NMP production according to the present utility model;
FIG. 3 is a schematic view showing the connection structure of a condensing outer tube of an exhaust gas treatment device for NMP production;
FIG. 4 is a left cross-sectional view of an exhaust gas treatment device for NMP production according to the present utility model.
In the figure: 1-a treatment box; 2-an air inlet pipe; 3-condensing the outer tube; 4-condensing the inner tube; 5-spiral air deflectors; 6-a heat conduction rod; 7-circulating cooling pipes; 8-a first cover plate; 9-a second cover plate; 10-a water inlet pipe; 11-a water outlet pipe; 12-exhaust pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-4, the present utility model provides a technical solution: an exhaust treatment device for NMP production, comprising: the treatment tank 1 and intake pipe 2, the fixed condensation outer tube 3 that is equipped with of treatment tank 1 bottom inner wall, the condensation outer tube 3 inner wall is equipped with condensation inner tube 4 through the support is fixed, condensation inner tube 4 outer wall is equipped with spiral aviation baffle 5, condensation inner tube 4 outer wall is located spiral aviation baffle 5 one side and is equipped with heat conduction stick 6, condensation outer tube 3 one end is the open end, the other end is equipped with first apron 8, condensation inner tube 4 one end is sealed through first apron 8, the fixed second apron 9 that is equipped with of the other end, the treatment tank 1 top is close to second apron 9 one end and is equipped with intake pipe 2, first apron 8 one side is equipped with blast pipe 12, condensation outer tube 3 outer wall is equipped with circulation cooling tube 7. In the exhaust gas discharging process, cooling water is filled into the circulating cooling pipe 7 and the condensation inner pipe 4, heat exchange is carried out on the exhaust gas between the cooling water and the condensation outer pipe 3 and the condensation inner pipe 4, the contact area of the exhaust gas and the condensation device is greatly increased through the arrangement of the spiral air deflector 5 and the heat conducting rod 6, the heat exchange efficiency of the exhaust gas is improved, and the condensation effect of the exhaust gas is improved.
The circulating cooling pipe 7 is in a spiral shape, one end of the circulating cooling pipe is a water inlet, the other end of the circulating cooling pipe is a water outlet, the center of the first cover plate 8 is provided with a water outlet pipe 11, the center of the second cover plate 9 is provided with a water inlet pipe 10, one end of the water inlet is connected with the water inlet pipe 10 through a pipeline, and one end of the water outlet is connected with the water outlet pipe 11 through a pipeline.
A gap is reserved between the spiral air deflector 5 and the inner wall of the condensing outer tube 3, and the condensed solvent can flow out of the condensing outer tube 3 through the gap and is reserved in the treatment box 1 to be uniformly discharged. One end of the exhaust pipe 12 extends to the outside of the treatment tank 1, and the condensed pressure gas is discharged through the exhaust gas.
The heat conduction rods 6 are in a plurality, the heat conduction rods 6 are uniformly distributed on the outer wall of the condensation inner tube 4 in a spiral shape, and the contact area with waste gas is increased through the heat conduction rods 6.
The exhaust pipe 12 is located between the space between the condensing outer pipe 3 and the condensing inner pipe 4.
Working principle: when the waste gas treatment device for NMP production is used, waste gas enters the treatment box 1 through the air inlet pipe 2, the waste gas enters a gap between the condensation outer pipe 3 and the condensation inner pipe 4, is discharged through the exhaust pipe 12 after being guided by the spiral air deflector 5, cooling water is flushed into the circulation cooling pipe 7 and the condensation inner pipe 4 in the waste gas discharging process, heat exchange is carried out on the waste gas between the cooling water and the condensation outer pipe 3 and the condensation inner pipe 4, the contact area of the waste gas and the condensation device is greatly increased through the arrangement of the spiral air deflector 5 and the heat conducting rod 6, the heat exchange efficiency of the waste gas is improved, and the condensation effect of the waste gas is improved.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Claims (6)
1. An exhaust treatment device for NMP production, comprising: treatment box (1) and intake pipe (2), its characterized in that: the inner wall of the bottom of the treatment box (1) is fixedly provided with a condensation outer tube (3), the inner wall of the condensation outer tube (3) is fixedly provided with a condensation inner tube (4) through a bracket, the outer wall of the condensation inner tube (4) is provided with a spiral air deflector (5), the outer wall of the condensation inner tube (4) is provided with a heat conducting rod (6) at one side of the spiral air deflector (5), one end of the condensation outer tube (3) is an open end, the other end is equipped with first apron (8), condensation inner tube (4) one end is closed through first apron (8), and the other end is fixed to be equipped with second apron (9), processing case (1) top is close to second apron (9) one end and is equipped with intake pipe (2), first apron (8) one side is equipped with blast pipe (12), condensation outer tube (3) outer wall is equipped with circulation cooling tube (7).
2. The exhaust gas treatment device for NMP production according to claim 1, characterized in that: the circulating cooling pipe (7) is spiral, one end is the water inlet, and the other end is the delivery port, first apron (8) central authorities are equipped with outlet pipe (11), second apron (9) central authorities are equipped with inlet tube (10), and wherein, water inlet one end is connected with inlet tube (10) through the pipeline, and delivery port one end is connected with outlet pipe (11) through the pipeline.
3. The exhaust gas treatment device for NMP production according to claim 1, characterized in that: a gap is reserved between the spiral air deflector (5) and the inner wall of the condensing outer tube (3).
4. The exhaust gas treatment device for NMP production according to claim 1, characterized in that: one end of the exhaust pipe (12) extends out of the treatment box (1).
5. The exhaust gas treatment device for NMP production according to claim 1, characterized in that: the heat conducting rods (6) are in a plurality, and the heat conducting rods (6) are uniformly distributed on the outer wall of the condensation inner tube (4) in a spiral shape.
6. The exhaust gas treatment device for NMP production according to claim 1, characterized in that: the exhaust pipe (12) is positioned between the gap between the condensing outer pipe (3) and the condensing inner pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320922518.5U CN220026531U (en) | 2023-04-21 | 2023-04-21 | Exhaust treatment device for NMP production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320922518.5U CN220026531U (en) | 2023-04-21 | 2023-04-21 | Exhaust treatment device for NMP production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220026531U true CN220026531U (en) | 2023-11-17 |
Family
ID=88723005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320922518.5U Active CN220026531U (en) | 2023-04-21 | 2023-04-21 | Exhaust treatment device for NMP production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220026531U (en) |
-
2023
- 2023-04-21 CN CN202320922518.5U patent/CN220026531U/en active Active
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