CN204380477U - A kind of gas treatment equipment - Google Patents
A kind of gas treatment equipment Download PDFInfo
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- CN204380477U CN204380477U CN201420683664.8U CN201420683664U CN204380477U CN 204380477 U CN204380477 U CN 204380477U CN 201420683664 U CN201420683664 U CN 201420683664U CN 204380477 U CN204380477 U CN 204380477U
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Abstract
The utility model relates to a kind of gas treatment equipment, and comprise the first gas treatment passage, pending gas enters absorbing unit, and export and be divided into two-way, a road is discharged to air, and a road enters condensing unit; Second gas treatment passage, pending gas enters condensing unit, and export and be divided into two-way, a road is expelled to reservoir vessel and holds, and a road enters absorbing unit.The utility model has the advantages such as vibrational power flow is reasonable, saving energy consumption, applicability are strong.
Description
Technical field
The utility model relates to a kind of gas treatment equipment, and it is mainly used in waste gas recovery and administers field.
Background technology
During process organic exhaust gas, different process routes has different adaptability to operating mode, such as adsorption technology, usual employing active carbon adsorption technology, be applicable to the absorption of the organic exhaust gas of large-wind-volume low-concentration, according to adsorption method process middle and high concentration waste gas, the heat of adsorption in adsorption tube can be caused to increase severely, produce dangerous.
Adopt the adsorption technology of active carbon, due to chemical industry tail gas complicated component, easily make active carbon poisoning, even burning causes the accident; On the other hand, adopt steam to active carbon desorption, the price of steam is day by day expensive, and some factory is even difficult to provide.
Therefore, active carbon adsorption technology is more and more restricted.Also have the scheme released and adopt hot nitrogen to carry out desorption at present, but hot nitrogen desorption energy consumption is high, also spread does not use.
The waste gas of the little air quantity of condensation method suitable treatment high concentration, as oil gas.But to the organic exhaust gas of Wind Volume, be not suitable for because energy consumption is high on the one hand; On the other hand, chemical industry emission standard is than exhaust of oil standard stringent, and condensation method is also awkward on VOCs treatment.
Usually, the organic exhaust gas of chemical plant emission Wind Volume often, concentration is not low yet.This allows a lot of technique, and all advantage is not enough, because whatsoever technology, the waste gas of concentration in Wind Volume, advantage is all not obvious.
Utility model content
In order to solve above-mentioned deficiency of the prior art, the utility model provide a kind of vibrational power flow rationally, save energy consumption, gas treatment equipment that applicability is strong.
For realizing above-mentioned utility model object, the utility model adopts following technical scheme:
A kind of gas treatment equipment, comprising:
First gas treatment passage, pending gas enters absorbing unit, and export and be divided into two-way, a road is discharged to air, and a road enters condensing unit;
Second gas treatment passage, pending gas enters condensing unit, and export and be divided into two-way, a road is expelled to reservoir vessel and holds, and a road enters absorbing unit.
Further, described absorbing unit comprises the adsorption module that more than two-stage is connected respectively, and adsorption module at different levels is all communicated to air and described condensing unit.
Further, described condensing unit comprises the condensation module that more than two-stage is connected in turn, and condensation module at different levels is all connected with described reservoir vessel.
Further, elementary condensation module is connected with absorbing unit.
Further, final stage condensation module is connected with described elementary condensation module.
As preferably, described condensing unit comprises three grades of condensation modules.
Further, the temperature of pending gas is cooled to 3 DEG C by described elementary condensation module, and the temperature of pending gas is cooled to-15 DEG C ~-35 DEG C by second level condensation module, and the temperature of pending gas is cooled to-45 DEG C ~-70 DEG C by final stage condensation module.
Further, the stream that described absorbing unit is expelled to condensing unit arranges vavuum pump.
According to factual survey, in fact the tail gas in chemical plant be not we see on the surface such, most chemical plant tail gas all has 2 bursts of tail gas mixing: the workshop ventilation of one large-wind-volume low-concentration, another strand is the tail end venting of production technology.Chemical plant does not often make a distinction, but mixes discharge, and this just causes the existing Wind Volume of tail gas in chemical plant, have again the present situation of not low concentration.
Adopt the technical solution of the utility model, the tail gas of the little air quantity of organized high concentration production technology discharged and the large-wind-volume low-concentration waste gas of workshop ventilation are separately, respectively from different air inlet accesss to plant, to realize the object of the waste gas processing large-wind-volume low-concentration and little air quantity high concentration simultaneously.
The utility model compared with prior art has following beneficial effect:
Whole device sealing and circulating, the tail gas discharging directly into atmosphere up to standard after only having absorbing unit to adsorb, does not have secondary pollution; Whole device only needs consuming electric power, does not need other public works such as steam, conduction oil, nitrogen; Whole device takes into full account the Appropriate application of the energy, saves energy consumption.
Accompanying drawing explanation
Fig. 1 is the gas treatment equipment structural representation in embodiment 2.
Detailed description of the invention
Embodiment 1
A kind of gas treatment equipment, comprising:
First gas treatment passage, pending gas enters absorbing unit, and export and be divided into two-way, a road is discharged to air, and a road enters condensing unit;
Second gas treatment passage, pending gas enters condensing unit, and export and be divided into two-way, a road is expelled to reservoir vessel and holds, and a road enters absorbing unit.
Adsorbing medium in described adsorption module is active carbon; Large-wind-volume low-concentration waste gas enters described first gas treatment passage, after the charcoal absorption of absorbing unit, the gas meeting atmospheric emission standard drains into air, vacuum method is adopted to make regenerating active carbon and carry out desorption to adsorbent, the organic matter adsorbed in adsorption module can be desorbed, the gas desorbed is called desorption gas, and desorption gas enters condensing unit;
Little air quantity high-concentration waste gas enters described second gas treatment passage, mix with described desorption gas, the unit style that is condensed cold solidifying after, most organic matter liquefaction, the gas do not liquefied enters absorbing unit and proceeds adsorption operations, and the liquid of post liquefaction holds from entering reservoir vessel.
Further, the outlet of described absorbing unit desorption gas is connected with vavuum pump;
Like this, no matter be that the waste gas of large-wind-volume low-concentration or the waste gas of little air quantity high concentration all can obtain suitable process, can energy consumption be saved, can qualified discharge be guaranteed again.
Because adsorbing medium can reach capacity after the adsorbate that absorption is more, if after having new waste gas to enter absorbing unit again, adsorbing medium just can not adsorb again, now, just need first by ability reprocessing waste gas after adsorbing medium regeneration, this can make processing procedure interrupt, and in order to solve the problem, absorption is successively carried out:
Further, described absorbing unit comprises the adsorption module that more than two-stage is connected respectively, and adsorption module at different levels is all communicated to air and described condensing unit.
Now, every grade of adsorption module of absorbing unit all can carry out adsorbing and regenerating, and when carrying out exhaust-gas treatment, at least one-level adsorption module is adsorbing, and at least one-level adsorption module is in reproduced state or adsorbable state; Like this, adsorption module alternating sorbent at different levels and regeneration, can ensure waste gas enter absorbing unit adsorption treatment operation can successively carry out.
For enabling the waste gas and/or the fully condensation of desorption gas that enter condensing unit:
Further, described condensing unit comprises the condensation module that more than two-stage is connected in turn, and condensation module at different levels is all connected with described reservoir vessel.
If when only having one-level condensation module, described one-level condensation module is all connected with reservoir vessel with absorbing unit;
If when having the above condensation module of two-stage, first condensation module is elementary condensation module, and last condensation module is final stage condensation module; And condensation module at different levels is connected in turn, namely previous stage condensation module rear stage condensation module corresponding to it is connected, and condensation module at different levels all can produce condensed liquid, therefore condensation module at different levels is all connected with described reservoir vessel; Condensation module at different levels all can be connected with described absorbing unit, also can optionally make wherein one or more condensation modules be connected with described absorbing unit, as long as the gas do not liquefied can be returned absorbing unit.
Further, elementary condensation module is connected with described absorbing unit.
If when having the above condensation module of two-stage, the condensation temperature of general setting rear class condensation module is lower than the condensation temperature of prime condensation module, therefore, in order to save the energy, prime condensation module can be returned, for prime condensation module provides energy by from the rear class condensation module gas do not liquefied out.
Further, final stage condensation module is also connected with described elementary condensation module.
As preferably, described condensing unit comprises three grades of condensation modules.
Further, the temperature of pending gas is cooled to 3 DEG C by described elementary condensation module, and the temperature of pending gas is cooled to-15 DEG C ~-35 DEG C by second level condensation module, and the temperature of pending gas is cooled to-45 DEG C ~-70 DEG C by final stage condensation module.
Whole device sealing and circulating, the tail gas discharging directly into atmosphere up to standard after only having absorbing unit to adsorb, does not have secondary pollution; Whole device only needs consuming electric power, does not need other public works such as steam, conduction oil, nitrogen; Whole device takes into full account the Appropriate application of the energy, saves energy consumption.
Embodiment 2
The present embodiment is the application examples of embodiment 1.
Refer to Fig. 1, present embodiments provide a kind of gas treatment equipment, comprising: the first air inlet 11, second air inlet 12, absorbing unit 3, condensing unit 4 and liquid tank 5.
Described first air inlet 11 connects absorbing unit 3.
Described absorbing unit 3 comprises the first outlet 21, second and exports 22 and three grades of adsorption modules: adsorption module 31, adsorption module 32, adsorption module 33.Adsorption module at different levels is interconnected respectively, and adsorption module at different levels all connects described first outlet 21 and the second outlet 22; Described first outlet 21 passes to air, and described second outlet 22 is connected with the second air inlet 12.Described second outlet 22 is connected with vavuum pump 34.Adsorbing medium in adsorption module is active carbon.
Described second air inlet 12 connects condensing unit 4.
Described condensing unit 4 comprises the 3rd outlet the 23, the 4th outlet 24 and three grades of condensation modules: condensation module 41, condensation module 42, condensation module 43.Condensation module at different levels is connected in turn, and elementary condensation module 41 and the described 3rd exports 23 and is connected, and described 3rd outlet 23 is connected with described first air inlet 11; Final stage condensation module 43 is also connected with elementary condensation module 41; Condensation module at different levels all exports 24 with the described 4th and is connected, and described 4th outlet 24 is connected with liquid tank 5.The described elementary chance that is condensed into is chilled to 3 DEG C, and the second level is condensed into and is shallowly chilled to-15 ~-35 DEG C, is chilled to-45 ~ 70 DEG C during final stage is condensed into.
Described liquid tank 5 is for holding from condensing unit 4 liquid out.
Be applied to by said apparatus in the exhaust-gas treatment of certain chemical plant emission, the main component in waste gas is carrene and air.Detect waste gas, testing result is air quantity 5500m
3/ h, concentration 3.6g/m
3; Such air quantity and concentration, simple active carbon primary adsorption at all cannot qualified discharge, and exotherm amount is also larger, easily produces danger.When factory can not provide steam to be active carbon desorption, this operating mode just compares and is difficult to process.
Through investigation, tail gas derives from 2 strands, and wherein one is low concentration gas 5000m
3/ h, concentration is about 0.5g/m
3; Also has one high-concentration raw production. art tail gas 500m in addition
3/ h, concentration is up to 35g/m
3; Like this, we just can distinguish and treat:
Low concentration gas is passed into the first air inlet 11 by the first ventilating fan 30, adsorb through absorbing unit, desorption gas and high-concentration waste gas pass into the second air inlet 12 by the second ventilating fan 40, carry out condensation, condensed liquid enters liquid tank 5, and the gas for condensation enters the first air inlet and adsorbs; Gas up to standard drains into air from the first gas outlet 21.
High concentration tail gas, by condensation, reduces concentration and returns absorption, guarantee that primary adsorption can be up to standard, can also lower the temperature on the other hand, guarantee the security of adsorbing.Again because be equipped with condensing unit, active carbon can utilize vacuum desorption, and need not adopt steam or hot nitrogen desorption, thus reduces the demand of energy consumption and public work.
Above-mentioned embodiment should not be construed as the restriction to the utility model protection domain.Key of the present utility model is: provide two gas accesses, makes the gas of variable concentrations that different gas access accesss to plant can be selected to process, to reach processing intent.When not departing from the utility model spirit, all should fall within protection domain of the present utility model any type of change that the utility model is made.
Claims (8)
1. a gas treatment equipment, comprising:
First gas treatment passage, pending gas enters absorbing unit, and export and be divided into two-way, a road is discharged to air, and a road enters condensing unit;
Second gas treatment passage, pending gas enters condensing unit, and export and be divided into two-way, a road is expelled to reservoir vessel and holds, and a road enters absorbing unit.
2. gas treatment equipment according to claim 1, is characterized in that: described absorbing unit comprises the adsorption module that more than two-stage is connected respectively, and adsorption module at different levels is all communicated to air and described condensing unit.
3. gas treatment equipment according to claim 1, is characterized in that: described condensing unit comprises the condensation module that more than two-stage is connected in turn, and condensation module at different levels is all connected with described reservoir vessel.
4. gas treatment equipment according to claim 3, is characterized in that: the elementary condensation module in the condensation module more than described two-stage be connected in turn is connected with described absorbing unit.
5. gas treatment equipment according to claim 4, is characterized in that: final stage condensation module is connected with described elementary condensation module.
6. gas treatment equipment according to claim 3, is characterized in that: described condensing unit comprises three grades of condensation modules.
7. gas treatment equipment according to claim 6, it is characterized in that: the temperature of pending gas is cooled to 3 DEG C by elementary condensation module, the temperature of pending gas is cooled to-15 DEG C ~-35 DEG C by second level condensation module, and the temperature of pending gas is cooled to-45 DEG C ~-70 DEG C by final stage condensation module.
8. gas treatment equipment according to claim 1, is characterized in that: the stream that described absorbing unit is expelled to condensing unit arranges vavuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683664.8U CN204380477U (en) | 2014-11-14 | 2014-11-14 | A kind of gas treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683664.8U CN204380477U (en) | 2014-11-14 | 2014-11-14 | A kind of gas treatment equipment |
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| CN204380477U true CN204380477U (en) | 2015-06-10 |
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| CN201420683664.8U Active CN204380477U (en) | 2014-11-14 | 2014-11-14 | A kind of gas treatment equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307305A (en) * | 2014-11-14 | 2015-01-28 | 清本环保工程(杭州)有限公司 | Gas treatment device |
| CN107837642A (en) * | 2017-11-20 | 2018-03-27 | 浙江赛鹭鑫仪器有限公司 | A kind of petroleum vapor recovery and exhaust treatment system |
-
2014
- 2014-11-14 CN CN201420683664.8U patent/CN204380477U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307305A (en) * | 2014-11-14 | 2015-01-28 | 清本环保工程(杭州)有限公司 | Gas treatment device |
| CN107837642A (en) * | 2017-11-20 | 2018-03-27 | 浙江赛鹭鑫仪器有限公司 | A kind of petroleum vapor recovery and exhaust treatment system |
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