CN208852648U - A kind of novel NMP waste gas recovering device - Google Patents
A kind of novel NMP waste gas recovering device Download PDFInfo
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- CN208852648U CN208852648U CN201820810329.8U CN201820810329U CN208852648U CN 208852648 U CN208852648 U CN 208852648U CN 201820810329 U CN201820810329 U CN 201820810329U CN 208852648 U CN208852648 U CN 208852648U
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Abstract
The utility model relates to a kind of novel NMP waste gas recovering devices, coating machine gas outlet with valvular pipeline with the gas-gas heat-exchanger rig of the device by being connected to, exhaust gas is after tentatively cooling down, enter sequentially connected condenser coil, refrigerating coil by gas-gas heat-exchanger rig gas outlet, pass through pipeline to gas-gas heat-exchanger rig air inlet after the dehumidifying of the dehumidifying part of wheeled dehumidifier after exhaust gas discharge, regeneration air heating tube is delivered to the regenerating section of wheeled dehumidifier after air heats and is discharged through regeneration air gas outlet；It is more environmentally-friendly by the way that exhaust gas by Multi-stage heat-exchanging device, can preferably be realized the condensation of liquid in exhaust gas, and condensed liquid is handled；High temperature air after dehumidifying is directly connected to coating machine air inlet, realizes the circulation of air, is reduced and is directly sucked in the pollution such as air bring dust.
Description
Technical field
The utility model relates to emission-control equipment field, specifically a kind of novel NMP waste gas recovering device.
Background technique
In Production Process of Lithium Battery, coating machine can generate high temperature NMP exhaust gas, wherein contain a large amount of harmful substances, it cannot
Direct emission discloses a variety of NMP recyclable devices in the prior art, as Chinese utility model patent CN206930193U discloses one
Kind heat exchanger and NMP gas recovery system can be handed over using heat exchanger and NMP gas recovery system with heat in the prior art
The low problem of recovery efficiency caused by parallel operation heat transfer effect difference, has reached the technical effect for improving recovery efficiency, but there are still universal
Disadvantage, if condensation effect is not good enough, it is known that the harmful substance fusing point in NMP exhaust gas is very low, existing condensing plant can not expire
Sufficient all substances reach fusing point；Secondly existing condensation cooling device and NMP exhaust gas contact stroke are too short, are not able to satisfy abundant condensation
Requirement.In addition existing technology only leans on condensing mode to recycle NMP, can not completely remove the NMP gas in exhaust gas, this is specially
Sharp technology combines conventional condensation technology and by the way of the concentration of VOC runner, and NMP concentration in exhaust gas is down to 20ppm or less
(general 400ppm of concentration or so after traditional approach processing).
Utility model content
It is existing to solve the technical problem to be solved by the utility model is to provide a kind of novel NMP waste gas recovering device
Defect present in technology.
The technical solution that the utility model solves above-mentioned technical problem is as follows:
A kind of novel NMP waste gas recovering device, coating machine gas outlet pass through the gas-gas with valvular pipeline Yu the device
Heat-exchanger rig connection, after exhaust gas is tentatively cooled down, by gas-gas heat-exchanger rig gas outlet into sequentially connected condenser coil,
Refrigerating coil passes through pipeline after the absorption of VOC concentrated acid runner to gas-gas heat-exchanger rig air inlet, through inhaling after exhaust gas discharge
It is attached, cooling after exhaust gas and coating machine gas outlet discharge exhaust gas through gas-gas heat-exchanger rig heat exchange after, by outlet recycle into
Enter coating machine air inlet；Regeneration air heating tube is delivered to the regenerating section of VOC concentration runner after air heats and through regenerating
Air outlet discharge；Liquid after the exhaust gas is condensed, freezed is stored through pipeline to recycling can；
Further, the outlet is connected to coating machine air inlet, realizes that air circulation utilizes；
Further, the condenser coil is connected to condenser, and the refrigerating coil is connected to evaporator, respectively to condensation
Coil pipe cools down with the refrigerant in refrigerating coil；
Further, the condenser, evaporator carry out cold and hot exchange with refrigerant in cooling tower under compressor effect；
The beneficial effects of the utility model are: further reduced exhaust gas temperature by the way that exhaust gas is passed through Multi-stage heat-exchanging device
Degree, can preferably realize the condensation of liquid in exhaust gas, and condensed liquid is handled by recycling can, more environmentally-friendly；
The high temperature air after concentration is directly connected to coating machine air inlet simultaneously, the circulation of air is realized, reduces and be directly sucked in
The pollution such as air bring dust.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
The reference numerals are as follows:
1, coating machine air inlet, 2, coating machine gas outlet, 3, gas-gas heat-exchanger rig, 4, outlet, 5, gas-gas heat exchange dress
Set air inlet, 6, gas-gas heat-exchanger rig gas outlet, 7, condenser coil, 8, refrigerating coil, 9, regeneration air heating tube, 10, regeneration
Air outlet, 11, VOC concentration runner, 12, recycling can, 13, cooling tower, 14, condenser, 15, evaporator；
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1, a kind of novel NMP waste gas recovering device, coating machine gas outlet 2 passes through with valvular pipeline and this
The gas-gas heat-exchanger rig 3 of device is connected to, and exhaust gas is entered by gas-gas heat-exchanger rig gas outlet 6 and successively connected after tentatively cooling down
Condenser coil 7, the refrigerating coil 8 connect passes through pipeline after the concentration of the concentrating part of VOC concentrated acid runner 11 after exhaust gas discharge
To gas-gas heat-exchanger rig air inlet 5, the exhaust gas that exhaust gas concentrated, after cooling is discharged with coating machine gas outlet 2 is changed through gas-gas
After thermal heat exchange, coating machine air inlet is recycled by outlet 4；Regeneration air heating tube 9 conveys after heating air
To VOC concentration runner 11 regenerating section and through regeneration air gas outlet 10 be discharged；The exhaust gas condensed, freezed after liquid
It is stored through pipeline to recycling can 12；
Further, the outlet 4 is connected to coating machine air inlet 1, realizes that air circulation utilizes；
Further, the condenser coil 7 is connected to condenser 14, and the refrigerating coil 8 is connected to the evaporator 15,
Cool down respectively to condenser coil and the refrigerant in refrigerating coil；
Further, the condenser 14, evaporator 15 carry out under compressor effect with refrigerant in cooling tower 13 cold
Heat exchange；
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (4)
1. a kind of novel NMP waste gas recovering device, it is characterised in that: coating machine gas outlet passes through with valvular pipeline and the dress
The gas-gas heat-exchanger rig connection set, exhaust gas are entered sequentially connected after tentatively cooling down by gas-gas heat-exchanger rig gas outlet
Condenser coil, refrigerating coil, exhaust gas discharge after through VOC concentrated acid runner absorption after by pipeline to gas-gas heat-exchanger rig into
Port, the exhaust gas of exhaust gas and the discharge of coating machine gas outlet after being dehumidified, being cooled down pass through row after the heat exchange of gas-gas heat-exchanger rig
Outlet is recycled into coating machine air inlet；Regeneration air heating tube is delivered to the reproducing unit of VOC concentration runner after heating air
Divide and is discharged through regeneration air gas outlet；Liquid after the exhaust gas is condensed, freezed is stored up through pipeline to recycling can
It deposits.
2. a kind of novel NMP waste gas recovering device according to claim 1, it is characterised in that: the outlet and coating
The connection of machine air inlet realizes that air circulation utilizes.
3. a kind of novel NMP waste gas recovering device according to claim 2, it is characterised in that: the condenser coil with it is cold
Condenser connection, the refrigerating coil are connected to evaporator, cool down respectively to condenser coil and the refrigerant in refrigerating coil.
4. a kind of novel NMP waste gas recovering device according to claim 3, it is characterised in that: the condenser, evaporator
Cold and hot exchange is carried out with refrigerant in cooling tower under compressor effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820810329.8U CN208852648U (en) | 2018-05-30 | 2018-05-30 | A kind of novel NMP waste gas recovering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820810329.8U CN208852648U (en) | 2018-05-30 | 2018-05-30 | A kind of novel NMP waste gas recovering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208852648U true CN208852648U (en) | 2019-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820810329.8U Active CN208852648U (en) | 2018-05-30 | 2018-05-30 | A kind of novel NMP waste gas recovering device |
Country Status (1)
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| CN (1) | CN208852648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110152338A (en) * | 2019-06-04 | 2019-08-23 | 深圳市华尔信环保科技有限公司 | The recycling of NMP steam condensate and technique of zero discharge in lithium battery production |
-
2018
- 2018-05-30 CN CN201820810329.8U patent/CN208852648U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110152338A (en) * | 2019-06-04 | 2019-08-23 | 深圳市华尔信环保科技有限公司 | The recycling of NMP steam condensate and technique of zero discharge in lithium battery production |
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