CN208711377U - A kind of thick purifying plant of organic exhaust gas liquefaction recycling - Google Patents

A kind of thick purifying plant of organic exhaust gas liquefaction recycling Download PDF

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Publication number
CN208711377U
CN208711377U CN201820850066.3U CN201820850066U CN208711377U CN 208711377 U CN208711377 U CN 208711377U CN 201820850066 U CN201820850066 U CN 201820850066U CN 208711377 U CN208711377 U CN 208711377U
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gas
water layer
thick purifying
exhaust gas
liquefaction
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赵云超
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Dongguan Zhao Ding Environmental Protection Technology Co Ltd
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Dongguan Zhao Ding Environmental Protection Technology Co Ltd
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Abstract

The utility model discloses a kind of thick purifying plant of organic exhaust gas liquefaction recycling, including the thick purifying column that liquefies, for drawing the blower of the tail gas in the thick purifying column that liquefies, the tail gas drawn to blower connecting with the thick purifying column that liquefies carries out the tail gas absorber of gas washing, the thick purifying column of liquefaction includes the air inlet for being set to bottom, the heat-exchanger rig that exhaust gas is cooled down being set to above air inlet, the first water layer for being used to hold water being set to below air inlet, it is set to the absorption cycle system that the first water layer side is connected to the first water layer, the tail gas absorber includes the second water layer, it is installed in the secondary circulation system that the second water layer side is connected to the second water layer.The utility model can quickly adsorb the NMP in organic exhaust gas, realize thick purification, improve working efficiency, guarantee the cleannes of the tail gas of discharge.

Description

A kind of thick purifying plant of organic exhaust gas liquefaction recycling
Technical field
The utility model relates to oil gas waste gas recovery fields, are to be related to a kind of organic exhaust gas liquefaction recycling more specifically Thick purifying plant.
Background technique
Lithium-ion electric electrical automobile bus is greatly developed in recent years, power resources of the lithium ion battery as electric vehicle, The exhaust gas that main component is N-Methyl pyrrolidone (abbreviation NMP) can be discharged during manufacture production, if to NMP without returning Receipts processing, not only waste of resource also causes greatly to pollute to environment.Therefore the recovery processing of NMP is also green energy resource lithium ion Important leverage link in cell production process, NMP recycling machine on the market has condensing and rotary-type at present, but condensing returns It is high to receive concentration of emission, has greater environmental impacts, rotary-type recycling machine energy consumption is high, and operating cost is high.
In addition application No. is 201520911523.1 Chinese utility model patent applications to disclose a kind of novel nmp solvent Recycling machine, including the online concentration inspection of air inlet, water layer, gas-liquid separator, liquid distribution trough, recycling machine ontology, exhaust outlet, NMP Survey device and CPU, the bottom of the recycling machine ontology is equipped with water layer, and the side of the water layer is equipped with air inlet, the water layer it is upper Side is equipped with gas-liquid separator, is equipped with liquid distribution trough, the surrounding of the upper end of the recycling machine ontology above gas-liquid separator Equipped with exhaust outlet, the bottom of the inside of the recycling machine ontology is equipped with the online concentration detector of NMP, the inside of recycling machine ontology Top pressure detector is installed, the output end of the online concentration detector of the NMP and pressure detector with the input of CPU End is electrically connected, and the output end of CPU is electrically connected with the input terminal of touch operation screen and alarm respectively.It passes through water layer pair The absorption of NMP and gas-liquid separator separate liquids and gases to reach the liquefaction of NMP recycling, however lean on water layer pair The single of NMP absorbs, and efficiency is too low, and does not handle tail gas, be easy to cause the exhaust emission to atmosphere.
Utility model content
To overcome drawbacks described above in the prior art, the utility model provides a kind of thick purification dress of organic exhaust gas liquefaction recycling It sets.
To achieve the above object, the utility model provides a kind of organic exhaust gas liquefaction recycling thick purifying plant, including liquefaction Thick purifying column, for drawing the blower through the thick purifying column of liquefying treated tail gas, connect with the thick purifying column that liquefies to blower The tail gas of absorption carries out the tail gas absorber of gas washing, and the thick purifying column of liquefaction includes the air inlet for being set to bottom, is set to The heat-exchanger rig that exhaust gas is cooled down above air inlet, the first water for being used to hold water being set to below air inlet Layer, is set to the absorption cycle system that the first water layer side is connected to the first water layer, is set to above the first water layer and is used to incite somebody to action The first gas-liquid separator that organic exhaust gas is dissolved in water, the first watering layer being set to above the first gas-liquid separator, setting Third gas-liquid separator above the first watering layer, is arranged the gas outlet above third gas-liquid separator.
Preferably, the thick purifying column of liquefaction further includes being set in the first water layer to be used to detect liquefaction organic liquor The concentration detection apparatus of bulk concentration and liquid level detection device for detecting the amount of liquid in the first water layer, for fixing the first gas The supporting element of liquid/gas separator.
Preferably, the concentration detection apparatus and liquid level detection device are connected with CPU.
Preferably, the tail gas absorber includes the second water layer filled for holding water, it is installed in the second water layer one The secondary circulation system that side is connected to the second water layer, the second gas-liquid separator being set to above the second water layer, is set to second The second watering layer being connected to above gas-liquid separator with secondary circulation system, the 4th gas-liquid point being set to above the second watering layer From device, it is set to above the 4th gas-liquid separator for discharging the exhaust port of purified tail gas.
Preferably, first water layer is connected to the second water layer by pipeline and valve.
Preferably, the absorption cycle system includes pressure gauge, the inlet pipeline being connected to the first water layer and water outlet The circulating pump between inlet pipeline and outlet pipeline is arranged in pipeline.
Preferably, the inlet pipeline be equipped with level tank and liquid transfer bypass, the level tank be equipped with The fluid level controller of liquid level detection device communication connection.
Preferably, the circulating pump includes the inlet connecting with inlet pipeline and the liquid out connecting with outlet pipeline Mouthful, it is installed with filter, the first valve and the first soft interface at the inlet, is installed with flowmeter at the liquid outlet, the Two valves and the second soft interface.
Preferably, first water layer offers leakage fluid dram and fluid infusion.
Preferably, the thick purifying column of liquefaction is connect with tail gas absorber by pipeline, the blower is set to pipe On road.
Preferably, the thick purifying column of liquefaction and tail gas absorber integrally connected, blower are set to tail gas absorber Exhaust port at or the air inlet of the thick purifying column of liquefaction at.
Compared with prior art, the utility model has the beneficial effects that:
The utility model includes the thick purifying column of liquefying, for drawing the blower through the thick purifying column of liquefaction treated tail gas, The tail gas drawn to blower connecting with the thick purifying column that liquefies carries out the tail gas absorber of gas washing, and the thick purifying column of liquefaction includes It is set to the air inlet of bottom, the heat-exchanger rig cooled down to exhaust gas being set to above air inlet is set to air inlet The first water layer for being used to hold water below mouthful, is set to the absorption cycle system that the first water layer side is connected to the first water layer, The first gas-liquid separator for organic exhaust gas to be dissolved in water being placed in above the first water layer, the tail gas absorber include Two water layers are installed in the secondary circulation system that the second water layer side is connected to the second water layer, the use being set to above the second water layer In the second gas-liquid separator for being dissolved in water organic exhaust gas, the setting of absorption cycle system and secondary circulation system so that The solution rate of NMP is remarkably enhanced, and improves working efficiency, and it is cleaner to improve the tail gas being discharged in atmosphere Only, NMP recovery efficiency and significant effect improve, while ensure that the cleannes of exhaust emissions.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is that a kind of liquefaction for the thick purifying plant of organic exhaust gas liquefaction recycling that the utility model embodiment one provides slightly mentions The structural schematic diagram of pure tower;
Fig. 2 is the tail gas absorption that thick purifying plant is recycled in a kind of organic exhaust gas liquefaction that the utility model embodiment one provides The structural schematic diagram of tower;
Fig. 3 is the structural representation that thick purifying plant is recycled in a kind of organic exhaust gas liquefaction that the utility model embodiment one provides Figure;
Fig. 4 is the structural representation that thick purifying plant is recycled in a kind of organic exhaust gas liquefaction that the utility model embodiment two provides Figure;
Fig. 5 is the structural representation that thick purifying plant is recycled in a kind of organic exhaust gas liquefaction that the utility model embodiment three provides Figure.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to The range of the utility model protection.
The embodiments of the present invention provide a kind of organic exhaust gas liquefaction recycling thick purifying plant.
Embodiment one
Referring to FIG. 1, Fig. 2 and Fig. 3, the utility model provides a kind of organic exhaust gas liquefaction recycling thick purifying plant, including Liquefy thick purifying column 1, for drawing the blower 2 of the exhaust gas in the thick purifying column 1 of liquefying, connect with the thick purifying column 1 that liquefies to wind The exhaust gas that machine 2 is drawn carries out the tail gas absorber 3 of gas washing, and the thick purifying column 1 of liquefaction includes the air inlet 11 for being set to bottom, It is set to the heat-exchanger rig 12 of 11 top of air inlet cooled down to exhaust gas, is set to below air inlet 11 and is used to contain The first water layer 151 to discharge water is set to the absorption cycle system 15 that 151 side of the first water layer is connected to the first water layer 151, if It is placed in the first gas-liquid separator 153 for organic exhaust gas to be dissolved in water of 12 top of heat-exchanger rig, is set to the first gas First watering layer 157 of 153 top of liquid/gas separator, is set to the third gas-liquid separator 158 of 157 top of the first watering layer, if The gas outlet 154 of 158 top of third gas-liquid separator is set, the blower 2 is installed at air inlet 11, the thick purifying column of liquefaction 1 further includes the concentration detection apparatus 155 and use for being used to detect liquefaction organic liquid NMP concentration being set in the first water layer 151 In the liquid level detection device 156 for detecting the amount of liquid in the first water layer, for fixing the supporting element of the first gas-liquid separator 153 152, the tail gas absorber 3 includes the second water layer 31 filled for holding water, is installed in 31 side of the second water layer and the second water The secondary circulation system 32 of 31 connection of layer, is set to the second gas-liquid separator 35 of 31 top of the second water layer, is set to the second gas What the top of liquid/gas separator 35 be connected to secondary circulation system 32 second sprinkles water layer 34, the be set to above the second watering layer 34 Four gas-liquid separators 36 are set to for discharging the exhaust port 33 of purified tail gas above the 4th gas-liquid separator 36, The absorption cycle system 15 includes pressure gauge, the inlet pipeline 164 and outlet pipeline 163 being connected to the first water layer 151, setting Circulating pump 162 between inlet pipeline 164 and outlet pipeline 163, first water layer 151 and the second water layer 31 pass through pipeline It is connected to valve.
The concentration detection apparatus 155 and liquid level detection device 156 are connected with CPU, and in the present embodiment, the CPU is west The PLC of 200 series of door, the next step for changing automatic execution device according to the liquid level of NMP concentration and liquid operate, It can also be other CPU for control in other embodiments.
The inlet pipeline 164 is equipped with level tank 161 and liquid transfer bypass 4, and the level tank 161 is equipped with and liquid The fluid level controller that level detecting apparatus 156 communicates to connect.
The circulating pump 162 includes the inlet connecting with inlet pipeline 164 and the liquid out connecting with outlet pipeline 163 Mouthful, it is installed with filter, the first valve and the first soft interface at the inlet, is installed with flowmeter at the liquid outlet, the Two valves and the second soft interface.
First water layer 151 offers leakage fluid dram 13 and fluid infusion 14, and the leakage fluid dram 13 is used for cleaning device, institute Fluid infusion 14 is stated for supplementing water to device.
Observation window can be opened up, on device according to demand in order to observe internal situation.
When work, organic exhaust gas is cooled down from air inlet 11 into heat-exchanger rig 12, then after cooling organic Exhaust gas enters the first gas-liquid separator 153, and absorption cycle system 15 operates, and the water of 151 the inside of the first water layer passes through circulating pump 162 operation is entered in the first watering layer 157 from inlet pipeline 164 by outlet pipeline 163, and water is from the first watering layer 157 It trickles down into the first gas-liquid separator 153 of lower section, is merged with the organic exhaust gas in the first gas-liquid separator 153, it is organic Exhaust gas NMP is dissolved in water, and the water for having dissolved organic exhaust gas NMP is fallen under gravity in the first water layer 151, is absorbed The circulatory system 15 continues working, and the water in the first water layer 151 is sent again into the first watering layer 157, multiple organic waste is completed The dissolving circulation of gas NMP, it is molten when the NMP concentration after concentration detection apparatus detects to liquefy in the first water layer reaches preset value The water for having solved 151 the inside of the first water layer of NMP is flowed in external liquid reserve tank by liquid transfer bypass 4.First water layer at this time 151 liquid level can continue to reduce, and when being reduced to predeterminable level, the fluid level controller on level tank 161 starts, and trigger the second water Layer 31 supplements water to the first water layer 151, and outside carries out supplement water, at the same time, part to the second water layer 31 by fluid infusion 14 Undissolved NMP gas and the fog droplet for having dissolved NMP pass through the power of blower 2, into third gas-liquid separator 158 In, third gas-liquid separator 158 by fog droplet be liquefied as it is watery fall into the first water layer 151, remaining part is undissolved NMP gas enter tail gas absorber 3 from gas outlet 154, tail gas absorber 3 is provided with identical as thick 1 function of purifying column of liquefaction The second water layer 31, secondary circulation system 32, the second gas-liquid separator 35, the second watering layer 34 and the 4th gas-liquid separator 36, After repeatedly recycling, the NMP remained in gas is dissolved in water the tail gas of residual fraction organic exhaust gas NMP, other gases Then entered in atmosphere by exhaust port 33.
The setting of absorption cycle system 15 improves working efficiency so that the solution rate of NMP is remarkably enhanced, and two It is cleaner that the setting of the secondary circulatory system 32 improves the tail gas being discharged in atmosphere, and NMP recovery efficiency and significant effect improve, It ensure that the cleannes of exhaust emissions simultaneously.
Since the water of the second water layer 31 is the clean water from external complement, the water flow after absorbing the NMP in exhaust gas Enter in the first water layer 151, ensure that the tail gas of discharge more cleans.
Embodiment two
Fig. 1 and Fig. 4 are please referred to, the utility model provides a kind of organic exhaust gas liquefaction recycling thick purifying plant, embodiment two Difference with embodiment one is: the blower 2 in embodiment two is set to 3 top of tail gas absorber and connects with exhaust port 33 Logical, the gas of remaining organic exhaust gas NMP enters tail gas absorber 3 via gas outlet 154 by blower 2 in the thick purifying column 1 that liquefies Middle carry out double absorption.Other settings are identical with embodiment one, and details are not described herein again.
Embodiment three
Referring to FIG. 5, the utility model provides a kind of organic exhaust gas liquefaction recycling thick purifying plant, embodiment two and implementation The difference of example one is: the setting of tail gas absorber 3 in embodiment two passes through pipeline phase outside the thick purifying column 1 that liquefies therebetween Even, remnants have the gas of organic exhaust gas NMP to enter tail gas absorption via gas outlet 154 by pipeline in the thick purifying column 1 that liquefies Double absorption is carried out in tower 3.Other settings are identical with embodiment one, and details are not described herein again.
In conclusion the utility model can quickly dissolve the NMP in organic exhaust gas, realizes thick purification, improve work Make efficiency, guarantees the cleannes of the tail gas of discharge.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above-mentioned The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.

Claims (10)

1. thick purifying plant, including the thick purifying column (1) of liquefaction are recycled in a kind of organic exhaust gas liquefaction, for drawing thick purification of being liquefied The blower (2) of treated in tower (1) tail gas, what is connect with thick purifying column (1) of liquefying washes the tail gas of blower (2) absorption The tail gas absorber (3) of gas, it is characterised in that: the thick purifying column (1) of liquefaction includes the air inlet (11) for being set to bottom, if The heat-exchanger rig (12) that exhaust gas is cooled down being placed in above air inlet (11), the use being set to below air inlet (11) In the first water layer (151) for holding water, it is set to the absorption cycle that the first water layer (151) side is connected to the first water layer (151) System (15), the first gas-liquid separator for organic exhaust gas to be dissolved in water being set to above heat-exchanger rig (12) (153), it is set to the first watering layer (157) being connected to above the first gas-liquid separator (153) with absorption cycle system (15), if Going out above third gas-liquid separator (158) is arranged in the third gas-liquid separator (158) being placed in above the first watering layer (157) Port (154).
2. thick purifying plant is recycled in a kind of organic exhaust gas liquefaction according to claim 1, it is characterised in that: the liquefaction is thick Purifying column (1) further includes the concentration detection apparatus for being used to detect liquefaction organic liquid concentration being set in the first water layer (151) (155) liquid level detection device (156) and for detecting the amount of liquid in the first water layer, for fixing the first gas-liquid separator (153) supporting element (152).
3. thick purifying plant is recycled in a kind of organic exhaust gas liquefaction according to claim 2, it is characterised in that: the concentration inspection It surveys device (155) and liquid level detection device (156) is connected with CPU, first water layer (151) offers leakage fluid dram (13) and mends Liquid mouth (14).
4. thick purifying plant is recycled in a kind of organic exhaust gas liquefaction according to claim 1, it is characterised in that: the tail gas is inhaled Receiving tower (3) includes the second water layer (31) filled for holding water, is installed in the second water layer (31) side and the second water layer (31) even Logical secondary circulation system (32), the second gas-liquid separator (35) being set to above the second water layer (31), is set to the second gas The second watering layer (34) being connected to above liquid/gas separator (35) with secondary circulation system (32), is set on the second watering layer (34) 4th gas-liquid separator (36) of side is set to above the 4th gas-liquid separator (36) for discharging the tail gas of purified tail gas Discharge outlet (33).
5. thick purifying plant is recycled in a kind of organic exhaust gas liquefaction according to claim 4, it is characterised in that: first water Layer (151) is connected to the second water layer (31) by pipeline and valve.
6. thick purifying plant is recycled in a kind of organic exhaust gas liquefaction according to claim 1, it is characterised in that: the absorption follows Loop system (15) includes pressure gauge, the inlet pipeline (163) and outlet pipeline (164) being connected to the first water layer (151), and setting exists Circulating pump (162) between inlet pipeline (163) and outlet pipeline (164).
7. thick purifying plant is recycled in a kind of organic exhaust gas liquefaction according to claim 6, it is characterised in that: the water inlet pipe Road (163) is equipped with level tank (161) and liquid transfer bypass (4), and the level tank (161) is equipped with and liquid level detection device (156) fluid level controller communicated to connect.
8. thick purifying plant is recycled in a kind of organic exhaust gas liquefaction according to claim 6, it is characterised in that: the circulating pump (162) liquid outlet for including the inlet being connect with inlet pipeline (163) and being connect with outlet pipeline (164), the inlet Place is installed with filter, the first valve and the first soft interface, is installed with flowmeter at the liquid outlet, the second valve and second soft Interface.
9. thick purifying plant is recycled in a kind of organic exhaust gas liquefaction according to claim 1, it is characterised in that: the liquefaction is thick Purifying column (1) is connect with tail gas absorber (3) by pipeline, and the blower (2) is set on pipeline.
10. thick purifying plant is recycled in a kind of organic exhaust gas liquefaction according to claim 1, it is characterised in that: the liquefaction Thick purifying column (1) and tail gas absorber (3) integrally connected, blower (2) are set to the exhaust port (33) of tail gas absorber (3) At the air inlet (11) of place or the thick purifying column (1) of liquefaction.
CN201820850066.3U 2018-06-04 2018-06-04 A kind of thick purifying plant of organic exhaust gas liquefaction recycling Active CN208711377U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112807937A (en) * 2020-12-31 2021-05-18 荣成碳纤维科技有限公司 Method and equipment for treating tail gas in carbon fiber precursor production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112807937A (en) * 2020-12-31 2021-05-18 荣成碳纤维科技有限公司 Method and equipment for treating tail gas in carbon fiber precursor production

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