CN205084581U - Organic waste gas's device is handled to multiregion - Google Patents
Organic waste gas's device is handled to multiregion Download PDFInfo
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- CN205084581U CN205084581U CN201520169253.1U CN201520169253U CN205084581U CN 205084581 U CN205084581 U CN 205084581U CN 201520169253 U CN201520169253 U CN 201520169253U CN 205084581 U CN205084581 U CN 205084581U
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Abstract
The utility model relates to an organic waste gas's device is handled to multiregion. Processing apparatus realizes according to following operation flow: (1 ) organic waste gas adsorbs through the activated carbon fiber case, (2 )Displace the air in desorption case and the pipeline through nitrogen gas, (3 )Hot nitrogen heating box, the circulation desorption, (4 )The organic solvent that the condensation desorption is got off, (5 )Cool off the complete box of desorption, (6 )The recovery of nitrogen gas. Adopt nitrogen gas heating carrying on desorption, the nitrogen gas temperature after the heating is high, can be used for multiregion organic waste gas's desorption, enlarges organic waste gas and handles the scope. Nitrogen gas adopts inside circulation system, reduces the consumption of nitrogen gas.
Description
Technical field
The utility model relates to a kind for the treatment of apparatus of organic exhaust gas, specifically a kind of device of multiregion process organic exhaust gas.
Background technology
The present stage recycling of organic exhaust gas generally adopts the device of absorption process and the device of adsorption method.Absorption process allows organic exhaust gas by absorption tower, and the absorbent in organic exhaust gas and absorption tower is contacted with each other, by their organic component acting on and sponging in waste gas that dissolves each other.Adsorption method is the adsorption capacity adopting activated carbon granule or NACF, and the organic component in absorption waste gas, then uses steam desorb, reclaims the organic principle of adsorption and enrichment.For a kind of front method, need a large amount of absorbents, and the efficiency absorbing organic exhaust gas is low, disposal ability is weak; And second method adopts steam desorb, because vapor (steam) temperature is relative to the boiling point of organic principle a lot of in waste gas, be lower.When the high boiling organic principle of activated carbon granule or carbon fiber adsorption and catalytic combustion, steam desorb can not desorption clean, which limits the adsorption treatment scope of organic exhaust gas, lower boiling organic principle can only be processed.
All be limited to certain condition for this absorption plant and adsorbent equipment, the situation that process range is all little, exploitation new technology device and the existing process unit of improvement are the multiregion process directions realizing organic exhaust gas.We are in conjunction with current absorbing process, develop a set of adsorbent equipment that can process multiregion organic solvent.
Utility model content
The utility model is mainly little for current NACF device absorbing organic solvent scope, and restriction is many, provides a kind of and processes the large adsorbent equipment of VOCs air range.This device adopts Active carbon fiber filter core to adsorb organic solvent, has specific activity charcoal granular absorption specific area large, the feature that adsorption time is short; Adopt nitrogen heating to carry out desorption, the nitrogen temperature after heating is high, can be used in the desorption of multiregion organic exhaust gas, expands VOCs treatment scope.Nitrogen adopts inner loop system, reduces the consumption of nitrogen.
The utility model device comprises exhaust gas inlet, spark arrester, in earlier stage filter, exhaust fan, carbon fiber adsorption and catalytic combustion case A, carbon fiber adsorption and catalytic combustion case B, nitrogen making machine group, nitrogen storage tank, roots blower, hotline heater, mutual heat exchanger, condenser group, gas-liquid separator, divide liquid bath, solvent tank, exhaust gas inlet is provided with dump mouth, and exhaust gas inlet also connects spark arrester successively, in earlier stage filter, exhaust fan, exhaust fan divides two-way, two-way connects carbon fiber adsorption and catalytic combustion case A and carbon fiber adsorption and catalytic combustion case B respectively, carbon fiber adsorption and catalytic combustion case A is connected hotline heater respectively with carbon fiber adsorption and catalytic combustion case B, carbon fiber adsorption and catalytic combustion case A is also connected purified gas floss hole respectively with carbon fiber adsorption and catalytic combustion case B, and hotline heater connects roots blower through valve A, nitrogen making machine group connects nitrogen storage tank, nitrogen storage tank connects roots blower, carbon fiber adsorption and catalytic combustion case A is connected roots blower by valve B with carbon fiber adsorption and catalytic combustion case B simultaneously, carbon fiber adsorption and catalytic combustion case A is also connected mutual heat exchanger respectively with carbon fiber adsorption and catalytic combustion case B, mutual heat exchanger connects filter in early stage through valve D, mutual heat exchanger connects roots blower through valve C, and mutual heat exchanger connects condenser group successively, gas-liquid separator, gas-liquid separator also connects mutual heat exchanger and point liquid bath respectively, and a point liquid bath connects solvent tank and filter in early stage respectively, and solvent tank connects filter in early stage.The operating temperature of described hotline heater 350 DEG C.Described nitrogen storage tank, nitrogen making machine group are opened the nitrogen once produced afterwards and can be used repeatedly.Described nitrogen recycles in systems in which, and final discharge is by completing after absorption.The circulation of described nitrogen is divided into nitrogen with casing circulation and the circulation of different casing.
The adsorbing medium that the utility model device adopts is NACF, adopting two adsorption boxes as being used alternatingly, can reach the continuous operation of device.
The utility model device adopts spark arrester as the security protection between pipeline and apparatus system.
The utility model device adopts nitrogen making machine group as nitrogen supply (NS) source, the problem that the engineering solved does not have continuing nitrogen source or source nitrogen not to meet the demands.The nitrogen supply (NS) quality of nitrogen making machine group and flow meet device demand completely, do not worry the ungratified situation of field engineering condition.
The utility model device arranges nitrogen storage tank, by the nitrogen storage of generation in nitrogen storage tank.Nitrogen making machine group is opened the nitrogen once produced afterwards and can be used repeatedly, and nitrogen making machine group need not be opened frequently.
The utility model device adopts hotline heater to the heating of nitrogen.The operating temperature of hotline heater can arrive 350 DEG C, nitrogen can be heated to the temperature needed for us completely.According to different engine requests, nitrogen can be heated to the organic solvent temperature needing desorption, ensure the demand of desorption temperature.
The utility model device arranges mutual heat exchanger, and the organic solvent got off from adsorption box desorb first by mutual heat exchanger, and carries out condensed backflow nitrogen and carries out mutual heat exchange.Under the effect of cooling adsorption box exit gas, also add hot reflux nitrogen, utilize system capacity as much as possible.
The utility model device arranges condenser group after mutual heat exchanger.Under different adsorption conditions, the condensation temperature needed for different solvents and yield and solvent controls the size and number of condenser group, is the condensation pith as reclaiming absorbing organic solvent.
The utility model device arranges gas-liquid separator after condenser group.Gas-liquid separator is used for being separated the organic solvent be condensed.The liquid organic solvent of condensation is separated to next equipment from gas-liquid separator lower end, and nitrogen is expelled to mutual heat exchanger and desorption casing from the upper end of gas-liquid separator.
The utility model device arranges roots blower, ensures the sealing property of nitrogen circulating system, simultaneously also as the circulation power of nitrogen reflux.
The nitrogen circulation of the utility model device is divided into the same casing circulatory system and the different casing circulatory system.The efficient desorption of organic solvent and the cooling of desorption casing is used for the casing circulatory system; The different casing circulatory system is used for the air discharge of desorption casing and the process up to standard of final gas.
Accompanying drawing explanation
Fig. 1 is the installation drawing of this utility model device, and device adopts hot nitrogen to heat and desorption, hot nitrogen cycle and cooling.Device can be applicable to multiextent VOCs treatment, low boiling and higher boiling all can be got off by desorption, solve the difficult desorption high boiling product Geological Problems of present stage absorbent charcoal adsorber, greatly enhance service life and the scope of application of NACF.
The utility model device comprises 1 exhaust gas inlet end, 2 accident evacuation ports, 3 spark arresters, 4 filter, 5 exhaust fans, 6 carbon fiber adsorption and catalytic combustion case A, 7 carbon fiber adsorption and catalytic combustion case B, 8 purified gas floss holes, 9 nitrogen making machine groups, 10 nitrogen storage tanks, 11 roots blowers, 12 valve A, 13 valve B, 14 hotline heaters, 15 mutual heat exchangers, 16 condenser groups, 17 gas-liquid separators, 18 valve C, 19 valve D, 20 points of liquid baths, 21 solvent tank in earlier stage.
Detailed description of the invention
Be described further the utility model below in conjunction with accompanying drawing, embodiment is only the workflow explaining the utility model device, not as the restricted explanation of the utility model file.
As shown in Figure 1, the utility model device, comprises exhaust gas inlet 1, spark arrester 3, in earlier stage filter 4, exhaust fan 5, carbon fiber adsorption and catalytic combustion case A6, carbon fiber adsorption and catalytic combustion case B7, nitrogen making machine group 9, nitrogen storage tank 10, roots blower 11, hotline heater 14, mutual heat exchanger 15, condenser group 16, gas-liquid separator 17, divide liquid bath 20, solvent tank 21, exhaust gas inlet 1 is provided with dump mouth 2, and exhaust gas inlet 1 also connects spark arrester 3 successively, in earlier stage filter 4, exhaust fan 5, exhaust fan 5 points of two-way, two-way connects carbon fiber adsorption and catalytic combustion case A6 and carbon fiber adsorption and catalytic combustion case B7 respectively, carbon fiber adsorption and catalytic combustion case A6 is connected hotline heater 14 respectively with carbon fiber adsorption and catalytic combustion case B7, carbon fiber adsorption and catalytic combustion case A6 is also connected purified gas floss hole 8 respectively with carbon fiber adsorption and catalytic combustion case B7, and hotline heater 14 connects roots blower 11 through valve A12, nitrogen making machine group 9 connects nitrogen storage tank 10, nitrogen storage tank 10 connects roots blower 11, carbon fiber adsorption and catalytic combustion case A6 is connected roots blower 11 by valve B13 with carbon fiber adsorption and catalytic combustion case B7 simultaneously, carbon fiber adsorption and catalytic combustion case A6 is also connected mutual heat exchanger 15 respectively with carbon fiber adsorption and catalytic combustion case B7, mutual heat exchanger 15 connects filter 4 in early stage through valve D19, mutual heat exchanger 15 connects roots blower 11 through valve C18, and mutual heat exchanger 15 connects condenser group 16 successively, gas-liquid separator 17, gas-liquid separator 17 also connects mutual heat exchanger 15 and point liquid bath 20 respectively, and a point liquid bath 20 connects solvent tank 21 and filter 4 in early stage respectively, and solvent tank 21 connects filter 4 in early stage.The operating temperature of described hotline heater 14 350 DEG C.Described nitrogen storage tank, nitrogen making machine group are opened the nitrogen once produced afterwards and can be used repeatedly.Described nitrogen recycles in systems in which, and final discharge is by completing after absorption.The circulation of described nitrogen is divided into nitrogen with casing circulation and the circulation of different casing.The utility model device realizes according to following operating process: (1) organic exhaust gas adsorbs through NACF case; (2) desorption case and ducted air is displaced by nitrogen; (3) hot nitrogen heating compartment, circulation desorption; (4) organic solvent that gets off of condensation desorb; (5) to desorption completely casing cool; (6) discharge of nitrogen.Its detailed step is as follows:
Organic exhaust gas flows to spark arrester 3 from exhaust gas inlet end 1, by the back-fire relief effect of spark arrester, the security protection of two systems is separated respectively, and accident evacuation port is used for discharge use in short time when system does not work.Waste gas is out tentatively filtered by filter afterwards from spark arrester 3, to remove in waste gas may with granule foreign.Be evacuated to carbon fiber adsorption and catalytic combustion case A6 through the waste gas of filter 4 by exhaust fan 5 and carry out adsorption cleaning process, in this process, valve 19 is closed conditions.Waste gas is after purification, and organic solvent constituent is isolated, and clean air is disposed to air by purified gas floss hole 8, completes the adsorption cleaning process of organic exhaust gas.
After carbon fiber adsorption and catalytic combustion case A6 absorption is saturated, switch to carbon fiber adsorption and catalytic combustion case B7 and carry out above-mentioned adsorption process, and carbon fiber adsorption and catalytic combustion case A6 starts to carry out desorption.
Before desorption, from nitrogen unit 9, prepare nitrogen storage for subsequent use in nitrogen storage tank 10.Carbon fiber adsorption and catalytic combustion case A6 adsorbs its exhaust gas inlet end of saturated rear closedown and purifying exhaust gas end, and open valve 13, valve 19, valve 12 is in closed condition.Nitrogen is discharged from nitrogen storage tank, enters adsorption box A6 by roots blower 11, and by the air displacement in adsorption box A6 out, allowing in casing is all nitrogen, ensures safety during heating.The air cemented out through mutual heat exchanger 15, condenser group 16, gas-liquid separator 17, again by mutual heat exchanger 15, pass into filter 4 through valve 19, then enter carbon fiber adsorption and catalytic combustion case B7, absorption fall in air with organic component after be disposed to air.This circulation is that displaced air ensures system heating safety, and the air of displacement is also discharged through absorption, ensures that emission gases does not have secondary pollution.
After the air in system is replaced by nitrogen, valve-off 19 and valve 13, open valve 18 and valve 12.From nitrogen storage tank 10 nitrogen out by roots blower 11, be heated to required temperature by hotline heater 13, send into 6 carbon fiber adsorption and catalytic combustion case A, desorption under high temperature is carried out to the organic component of absorption.
Along with nitrogen enters, mutual heat exchanger 15 carries out primary heat exchange to organic component after desorb, then enters condenser group 16 thoroughly condensation.After condensed organic component and nitrogen enter gas-liquid separator 17, the nitrogen of cooling is back to mutual heat exchanger 15 from upper end, lower the temperature to the mist of firm desorb.Then by valve 18, be evacuated to hotline heater 14 by roots blower 11 and carry out heat cycles again.This circulation can realize recycling of nitrogen, does not need a large amount of nitrogen to supplement.And the circulation of nitrogen can make the sufficient desorb of organic solvent get off.
The condensed organic solvent of desorb, by gas-liquid separator 17, enters point liquid bath 20, carries out layering to the organic solvent of heterogeneity, finally put into solvent tank 21 and store.
After the organic solvent desorb in adsorption box A6, valve-off 12, opens valve 13, and the nitrogen of backflow no longer heats.The nitrogen now refluxed is through condenser group 16, and temperature is lower, and direct circulation enters adsorption box A6, lowers the temperature to casing, while taking away the heat in casing, spin manifold temperature is down to the temperature needed for absorption.
After cooling, valve-off 13 and valve 18, remaining nitrogen will be pumped down to exhaust fan and take away.Meanwhile, a small amount of gas that point liquid bath and solvent tank evaporate also can be evacuated to absorption casing by exhaust fan and adsorb, and prevents gas pressure excessive, affects technological process.
After carbon fiber adsorption and catalytic combustion case B7 absorption is saturated, switches to charcoal absorption case A6 and carry out.B case carries out above-mentioned desorption process, reciprocal with this, carries out the continuous operation of whole device.
Claims (5)
1. the device of a multiregion process organic exhaust gas, it is characterized in that: comprise exhaust gas inlet (1), spark arrester (3), filter in early stage (4), exhaust fan (5), carbon fiber adsorption and catalytic combustion case A (6), carbon fiber adsorption and catalytic combustion case B (7), nitrogen making machine group (9), nitrogen storage tank (10), roots blower (11), hotline heater (14), mutual heat exchanger (15), condenser group (16), gas-liquid separator (17), divide liquid bath (20), solvent tank (21), exhaust gas inlet (1) is provided with dump mouth (2), exhaust gas inlet (1) also connects spark arrester (3) successively, filter in early stage (4), exhaust fan (5), exhaust fan (5) point two-way, two-way connects carbon fiber adsorption and catalytic combustion case A (6) and carbon fiber adsorption and catalytic combustion case B (7) respectively, carbon fiber adsorption and catalytic combustion case A (6) is connected hotline heater (14) respectively with carbon fiber adsorption and catalytic combustion case B (7), carbon fiber adsorption and catalytic combustion case A is also connected purified gas floss hole (8) respectively with carbon fiber adsorption and catalytic combustion case B, hotline heater (14) connects roots blower (11) through valve A (12), nitrogen making machine group (9) connects nitrogen storage tank (10), nitrogen storage tank (10) connects roots blower (11), carbon fiber adsorption and catalytic combustion case A (6) and carbon fiber adsorption and catalytic combustion case B (7) are connected roots blower (11) by valve B (13) simultaneously, carbon fiber adsorption and catalytic combustion case A (6) is also connected mutual heat exchanger (15) respectively with carbon fiber adsorption and catalytic combustion case B (7), mutual heat exchanger (15) connects filter in early stage (4) through valve D (19), mutual heat exchanger (15) connects roots blower (11) through valve C (18), mutual heat exchanger (15) connects condenser group (16) successively, gas-liquid separator (17), gas-liquid separator (17) also connects mutual heat exchanger (15) and point liquid bath (20) respectively, liquid bath (20) is divided to connect solvent tank (21) and filter in early stage (4) respectively, solvent tank (21) connects filter in early stage (4).
2. the device of a kind of multiregion process organic exhaust gas according to claim 1, is characterized in that, the operating temperature of described hotline heater (14) 350 DEG C.
3. the device of a kind of multiregion process organic exhaust gas according to claim 1 and 2, it is characterized in that, described nitrogen storage tank, nitrogen making machine group are opened the nitrogen once produced afterwards and can be used repeatedly.
4. the device of a kind of multiregion process organic exhaust gas according to claim 3, it is characterized in that, described nitrogen recycles in systems in which, and final discharge is by completing after absorption.
5. the device of a kind of multiregion process organic exhaust gas according to claim 4, is characterized in that, the circulation of described nitrogen is divided into nitrogen with casing circulation and the circulation of different casing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520169253.1U CN205084581U (en) | 2015-03-25 | 2015-03-25 | Organic waste gas's device is handled to multiregion |
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| CN201520169253.1U CN205084581U (en) | 2015-03-25 | 2015-03-25 | Organic waste gas's device is handled to multiregion |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273356A (en) * | 2018-03-05 | 2018-07-13 | 江苏汇金环保科技有限公司 | A kind of high-temp waste gas activated carbon adsorption nitrogen stripping condensate recovery system |
| CN110394025A (en) * | 2019-08-26 | 2019-11-01 | 河北恒嘉元环保科技有限公司 | Organic waste gas treatment device and its application method |
-
2015
- 2015-03-25 CN CN201520169253.1U patent/CN205084581U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273356A (en) * | 2018-03-05 | 2018-07-13 | 江苏汇金环保科技有限公司 | A kind of high-temp waste gas activated carbon adsorption nitrogen stripping condensate recovery system |
| CN110394025A (en) * | 2019-08-26 | 2019-11-01 | 河北恒嘉元环保科技有限公司 | Organic waste gas treatment device and its application method |
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