CN204735090U - Alternating temperature pressure swing adsorption recovery unit - Google Patents
Alternating temperature pressure swing adsorption recovery unit Download PDFInfo
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- CN204735090U CN204735090U CN201520386785.0U CN201520386785U CN204735090U CN 204735090 U CN204735090 U CN 204735090U CN 201520386785 U CN201520386785 U CN 201520386785U CN 204735090 U CN204735090 U CN 204735090U
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Abstract
The utility model discloses an alternating temperature pressure swing adsorption recovery unit, including frequency conversion air pump 201, alternating temperature pressure swing adsorption unit, vacuum pump 301 more than two sets of, cold box heat exchanger 305. The utility model discloses an alternating temperature pressure swing adsorption retrieves and purifies various materials among the organic solvent, and final VOCs gas strength reaches the milligram level to the unit has been stopped effectively at production secondary pollution in service.
Description
Technical field
The present invention relates to alternating temperature pressure-variable adsorption and reclaim field, the absorbing recovery device of especially a kind of Low Concentration of Benzene class (PX) organic steam, expoxy propane (PO), organic solvent etc.
Background technology
Energy and environment be the world today development theme Ye Shi China development must faced by problem.Along with the enhancing of environmental consciousness and the requirement of sustainable development, VOCs gas reclaims, control will be subject to increasing attention.The volatilization of VOCs gas is present in the production of petrochemical industry, handling, storage, the links such as canned, the places such as such as refinery, coke-oven plant, PO, PX depots.
Because VOCs volatile organic matter is very easy to volatilization in production, storage, transport, sale, use procedure, thus produce very serious VOCs gas fixed discharge source, not only cause resources loss, more constitute potential fire hazard, simultaneously hazardous VOCs gas severe contamination environment, harm worker's is healthy.
So far, the VOCs that place market not yet having ripe met petrochemical plant and coke-oven plant, PO, PX depots and transfer storage facility etc. to there is the discharge of VOCs gaseous volatilization uses reclaims and reduces secondary pollution and the device of energy qualified discharge.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of alternating temperature pressure swing adsorption recovery unit rational in infrastructure, can realize the qualified discharge of low concentration VOCs gas, and can reclaim employing.
For solving the problems of the technologies described above, the invention provides a kind of alternating temperature pressure swing adsorption recovery unit, comprising frequency conversion air pump 201, alternating temperature pressure-swing absorption apparatus more than two, vavuum pump 301, ice chest heat exchanger 305; That often organizes alternating temperature pressure-swing absorption apparatus and comprise adsorption tanks, intake valve, parsing valve, air bleeding valve, back-pressure valve, adsorption tanks comprise absorption tank body, is placed on the adsorbent in adsorption tanks intracoelomic cavity and makes adsorbent reactivation adds thermal analysis apparatus; The outlet of frequency conversion air pump 201 is connected with intake valve by the first spark arrester 202, intake valve is connected with the air inlet of absorption tank base, the import of resolving valve is connected with between the air inlet of absorption tank base and intake valve outlet, the outlet of resolving valve is connected with ice chest heat exchanger 305 entrance by vavuum pump 301, ice chest heat exchanger 305 outlet is connected with the entrance of frequency conversion air pump 201, and the entrance of frequency conversion air pump 201 is connected with oil gas entrance by the second spark arrester 203; The gas outlet on absorption tank body top is connected with high-altitude cylinder 304 by air bleeding valve, the 3rd spark arrester 204, between the gas outlet and the air inlet of air bleeding valve of absorption tank body, be also connected with back-pressure valve.
Preferably, the heating of alternating temperature pressure-swing absorption apparatus and resolver comprise the helical form stainless steel inner coil pipe being arranged on adsorption tanks intracoelomic cavity; The sidewall of absorption tank body is provided with first interface and the second interface; The outlet that this inner coil pipe entrance point enters valve 501 through first interface by inlet valve and steam is connected, and this inner coil pipe port of export goes out valve 505 import through the second interface by outlet valve and steam and is connected; The outlet that cold water enters valve 502 is also connected with between the outlet that inlet valve import and steam enter valve 501; The outlet of outlet valve and steam go out also to be connected with cold water between valve 505 import and to go out valve 506 import.
Preferably, alternating temperature pressure-variable adsorption loop comprise 2 groups be arranged in parallel alternately for adsorbing the alternating temperature pressure-swing absorption apparatus with dissection process.Two groups of alternating temperature pressure-swing absorption apparatus comprise adsorption tanks A302, adsorption tanks B303, intake valve A401, intake valve B402, resolve valve A403, resolve valve B404, air bleeding valve A405, air bleeding valve B406, back-pressure valve A407, back-pressure valve B408.Frequency conversion air pump 201 is connected with the air inlet bottom adsorption tanks A302 by intake valve A401; Be connected with the import of resolving valve A403 between air inlet bottom adsorption tanks A302 and intake valve A401 export, the outlet of resolving valve A403 is connected with vavuum pump 301; The gas outlet on adsorption tanks A302 top is connected with high-altitude cylinder by air bleeding valve A405, the 3rd spark arrester 204, is also connected with the outlet of back-pressure valve A407 between the gas outlet on adsorption tanks A302 top and air bleeding valve A405 air inlet; The inner coil pipe entrance point of adsorption tanks A302 inner chamber is connected with the outlet of inlet valve A503, and the outlet that the outlet of valve 501 is entered in inlet valve A503 import respectively with steam, cold water enters valve 502 is connected; The inner coil pipe port of export of adsorption tanks A is connected with outlet valve A507 import, and outlet valve A507 outlet goes out valve 505 import respectively with steam, cold water goes out valve 506 and is connected.Frequency conversion air pump 201 is connected with the air inlet bottom adsorption tanks B303 by intake valve B402; Be connected with the import of resolving valve B404 between air inlet bottom adsorption tanks B303 and intake valve B402 export, the outlet of resolving valve B404 is connected with vavuum pump 301; The gas outlet on adsorption tanks B303 top is connected with high-altitude cylinder 304 by air bleeding valve B406, the 3rd spark arrester 204, is also connected with the outlet of back-pressure valve B408 between the gas outlet on adsorption tanks B303 top and air bleeding valve B406 air inlet; The inner coil pipe entrance point of adsorption tanks N303 inner chamber exports with inlet valve B504 and is connected, and the outlet that the outlet of valve 501 is entered in inlet valve B504 import respectively with steam, cold water enters valve 502 is connected; The inner coil pipe port of export of adsorption tanks B303 is connected with outlet valve B508 import, and outlet valve B508 outlet goes out valve 505 import respectively with steam, cold water goes out valve 506 import and is connected.
Preferably, back-pressure valve A407, back-pressure valve B408 entrance can meet pure air or N
2.
Preferably, ice chest heat exchanger 305 can be-40 DEG C of refrigerating medium indirect heat exchange awkward silences at a meeting, also can directly evaporate awkward silence at a meeting for-40 DEG C of fluorine systems; Bottom ice chest heat exchanger 305, correspondence has liquid outlet.
Preferably, adsorption tanks are cylindrical steel pressure vessel, and regeneration heating inner coil pipe is equipped with in inside, and adsorption tanks are provided with adsorbing medium therebetween, and adsorbing medium is active carbon or silica gel or zeolite or carbon molecular sieve.
Beneficial effect of the present invention is: compact conformation, floor space are little, and unit according to presetting fully automatic operation, can be supervised without the need to special messenger after connecting; Adsorption efficiency is high, and the little and safety of absorption heat, the rate of recovery is high.
Accompanying drawing explanation
Fig. 1 is single unit system structure chart of the present invention.
Fig. 2 is adsorption tanks structural representation of the present invention.
Wherein, 201, frequency conversion air pump; 202, the first spark arrester; 203, the second spark arrester; 204, the 3rd spark arrester; 301, vavuum pump; 302, adsorption tanks A; 303, adsorption tanks B; 304, high-altitude cylinder; 305, ice chest heat exchanger; 401, intake valve A; 402, intake valve B; 403, valve A is resolved; 404, valve B is resolved; 405, air bleeding valve A; 406, air bleeding valve B; 407, back-pressure valve A; 408, back-pressure valve B; 501, steam enters valve; 502, cold water enters valve; 503, inlet valve A; 504, inlet valve B; 505, steam goes out valve; 506, cold water enters valve; 507, outlet valve A; 508, outlet valve B; 601, exhaust outlet; 602, charging door; 603, tank body is adsorbed; 604, inner coil pipe; 605, high heat transfer special-purpose activated charcoal; 606, temperature point; 607, discharge port; 608, air inlet; 609, inner coil pipe import; 610, inner coil pipe outlet.
Detailed description of the invention
As shown in Figure 1, a kind of alternating temperature pressure swing adsorption recovery unit, comprises frequency conversion air pump 201, alternating temperature pressure-swing absorption apparatus more than two, vavuum pump 301, ice chest heat exchanger 305; That often organizes alternating temperature pressure-swing absorption apparatus and comprise adsorption tanks, intake valve, parsing valve, air bleeding valve, back-pressure valve, adsorption tanks comprise absorption tank body, is placed on the adsorbent in adsorption tanks intracoelomic cavity and makes adsorbent reactivation adds thermal analysis apparatus; The outlet of frequency conversion air pump 201 is connected with intake valve by the first spark arrester 202, intake valve is connected with the air inlet of absorption tank base, the import of resolving valve is connected with between the air inlet of absorption tank base and intake valve outlet, the outlet of resolving valve is connected with ice chest heat exchanger 305 entrance by vavuum pump 301, ice chest heat exchanger 305 outlet is connected with the entrance of frequency conversion air pump 201, and the entrance of frequency conversion air pump 201 is connected with oil gas entrance by the second spark arrester 203; The gas outlet on absorption tank body top is connected with high-altitude cylinder 304 by air bleeding valve, the 3rd spark arrester 204, between the gas outlet and the air inlet of air bleeding valve of absorption tank body, be also connected with back-pressure valve.
The heating of alternating temperature pressure-swing absorption apparatus and resolver comprise the helical form stainless steel inner coil pipe being arranged on adsorption tanks intracoelomic cavity; The sidewall of absorption tank body is provided with first interface and the second interface; The outlet that this inner coil pipe entrance point enters valve 501 through first interface by inlet valve and steam is connected, and this inner coil pipe port of export goes out valve 505 import through the second interface by outlet valve and steam and is connected; The outlet that cold water enters valve 502 is also connected with between the outlet that inlet valve import and steam enter valve 501; The outlet of outlet valve and steam go out also to be connected with cold water between valve 505 import and to go out valve 506 import.
Alternating temperature pressure-variable adsorption loop comprise two groups be arranged in parallel alternately for adsorbing the alternating temperature pressure-swing absorption apparatus with dissection process.Two groups of alternating temperature pressure-swing absorption apparatus comprise adsorption tanks A302, adsorption tanks B303, intake valve A401, intake valve B402, resolve valve A403, resolve valve B404, air bleeding valve A405, air bleeding valve B406, back-pressure valve A407, back-pressure valve B408.Frequency conversion air pump 201 is connected with the air inlet bottom adsorption tanks A302 by intake valve A401; Be connected with the import of resolving valve A403 between air inlet bottom adsorption tanks A302 and intake valve A401 export, the outlet of resolving valve A403 is connected with vavuum pump 301; The gas outlet on adsorption tanks A302 top is connected with high-altitude cylinder by air bleeding valve A405, the 3rd spark arrester 204, is also connected with the outlet of back-pressure valve A407 between the gas outlet on adsorption tanks A302 top and air bleeding valve A405 air inlet; The inner coil pipe entrance point of adsorption tanks A302 inner chamber is connected with the outlet of inlet valve A503, and inlet valve A503 import is connected respectively at the outlet that steam enters the outlet of valve 501, cold water enters valve 502; The inner coil pipe port of export of adsorption tanks A is connected with outlet valve A507 import, and outlet valve A507 outlet goes out valve 505 import respectively at steam, cold water goes out valve 506 and is connected.Frequency conversion air pump 201 is connected with the air inlet bottom adsorption tanks B303 by intake valve B402; Be connected with the import of resolving valve B404 between air inlet bottom adsorption tanks B303 and intake valve B402 export, the outlet of resolving valve B404 is connected with vavuum pump 301; The gas outlet on adsorption tanks B303 top is connected with high-altitude cylinder 304 by air bleeding valve B406, the 3rd spark arrester 204, is also connected with the outlet of back-pressure valve B408 between the gas outlet on adsorption tanks B303 top and air bleeding valve B406 air inlet; The inner coil pipe entrance point of adsorption tanks N303 inner chamber exports with inlet valve B504 and is connected, and the outlet that the outlet of valve 501 is entered in inlet valve B504 import respectively with steam, cold water enters valve 502 is connected; The inner coil pipe port of export of adsorption tanks B303 is connected with outlet valve B508 import, and outlet valve B508 outlet goes out valve 505 import respectively with steam, cold water goes out valve 506 import and is connected.
Back-pressure valve A407, back-pressure valve B408 entrance can meet air or N
2.
Ice chest heat exchanger 305 can be-40 DEG C of refrigerating medium indirect heat exchange awkward silences at a meeting, also can directly evaporate awkward silence at a meeting for-40 DEG C of fluorine systems; Bottom ice chest heat exchanger 305, correspondence has liquid outlet.
Adsorption tanks are cylindrical steel pressure vessel, and regeneration heating inner coil pipe is equipped with in inside, and adsorption tanks are provided with adsorbing medium therebetween, and adsorbing medium is active carbon or silica gel or zeolite or carbon molecular sieve.
Embodiment 1: when alternating temperature pressure swing adsorption recovery unit is two groups:
As shown in Figure 1, a kind of alternating temperature pressure swing adsorption recovery unit comprises frequency conversion air pump 201, first spark arrester 202, adsorption tanks, vavuum pump 301, ice chest heat exchanger 305, first spark arrester that sequentially connect and is used for preventing flame from scurrying into next link or stoping flame to spread at pipeline enclosure.
Alternating temperature pressure-swing absorption apparatus comprises adsorption tanks A302, adsorption tanks B303, intake valve A401, intake valve B402, resolves valve A403, resolves valve B404, air bleeding valve A405, air bleeding valve B406.
VOCs gas is connected with the air inlet bottom adsorption tanks A 302 by intake valve A 401; Be connected with the import of resolving valve A 403 between air inlet bottom adsorption tanks A302 and intake valve A 401 export, the outlet of resolving valve A 403 is connected with vavuum pump 301; The gas outlet on described adsorption tanks A 302 top is connected with high-altitude cylinder 304 by air bleeding valve A405, the 3rd spark arrester 204, is also connected with the outlet of back-pressure valve A407 between the gas outlet on described adsorption tanks A 302 top and air bleeding valve A 405 air inlet; The inner coil pipe entrance point of described adsorption tanks A 302 exports with inlet valve A 503 and is connected, and the outlet that the outlet of valve 501 is entered in inlet valve A 503 import respectively with steam, cold water enters valve 502 is connected; The inner coil pipe port of export of adsorption tanks A 302 is connected with outlet valve A 507 import, outlet valve A 507 export go out valve 505 import with steam respectively, cold water goes out valve 506 import and is connected.
VOCs gas is connected with the air inlet bottom adsorption tanks B 303 by intake valve B 402; Be connected with the import of resolving valve B 404 between air inlet bottom adsorption tanks B303 and intake valve B 402 export, the outlet of resolving valve B 404 is connected with vavuum pump 301; The gas outlet on described adsorption tanks B 303 top is connected with high-altitude cylinder 304 by air bleeding valve B406, the 3rd spark arrester 204, is also connected with the outlet of back-pressure valve B408 between the gas outlet on described adsorption tanks B 303 top and air bleeding valve B 406 air inlet; The inner coil pipe entrance point of described adsorption tanks B 303 inner chamber exports with inlet valve B 504 and is connected, and the outlet that the outlet of valve 501 is entered in inlet valve B 504 import respectively with steam, cold water enters valve 502 is connected; The inner coil pipe port of export of adsorption tanks B 303 is connected with outlet valve B 508 import, outlet valve B 508 export go out valve 505 import with steam respectively, cold water goes out valve 506 import and is connected.
As shown in Figure 2, adsorption tanks are more than two groups, adsorption tanks comprise exhaust outlet 601, charging door 602, absorption tank body 603, inner coil pipe 604, high heat transfer special-purpose activated charcoal 605, temperature point 606, discharge port 607, air inlet 608, inner coil pipe import 609, inner coil pipe outlet 610, in adsorption tanks, high heat transfer special-purpose activated charcoal 605 is special-purpose activated charcoal, its thermal conductivity is greater than 0.6W/ (mk), namely capacity of heat transmission is 6 times of normal activated carbon, and benzene adsorptive value is greater than 40.
Two groups of alternating temperature pressure-swing absorption apparatus can work simultaneously, one group also can be had to be in absorption phase and other one group is in resolution phase or idle state.
Embodiment 2: when alternating temperature pressure-swing absorption apparatus one group be in absorption phase and other one group be in idle state time, open intake valve A401, close intake valve B402, the gas after ice chest heat exchanger 105 processes enters adsorption tanks A302 through intake valve A401, enters absorption phase; Adsorption tanks B303 is in idle state.
Embodiment 3: alternating temperature pressure-swing absorption apparatus one group is in absorption phase and other one group when being in resolution phase, open intake valve A401, close intake valve B402, the gas after ice chest heat exchanger 105 processes enters adsorption tanks A302 through intake valve A401, enters absorption phase; When absorption acquires a certain degree, close intake valve A401, open intake valve B402, now, adsorption tanks B303 is in absorption phase, and adsorption tanks A302 enters resolution phase.
Alternating temperature pressure swing adsorption recovery unit of the present invention is not limited in two groups of alternating temperature pressure-swing absorption apparatus in above-described embodiment, also can be more than 3 groups or 3 groups, and wherein part carries out adsorption treatment, and another part carries out dissection process; When for 3 groups of alternating temperature pressure-swing absorption apparatus, one group can be used for dissection process, and all the other two groups can be used for adsorption treatment, and vice versa.
Utilize above-mentioned alternating temperature pressure swing adsorption recovery unit to carry out a method for gas recovery, comprise the steps:
(1) adsorption treatment step: be input in adsorption tanks by low concentration VOCs gas and carry out adsorption treatment, the gas after adsorption treatment is drained in air;
(2) adsorb switch step: through the switching of valve, the VOCs gas after condensation process is adsorbed saturated adsorption tanks and switches to from passing into and pass into other adsorption tanks and process;
(3) activating and regenerating step: in the inner coil pipe of saturated adsorption tanks, steam is passed into adsorbing of switching in step (2) Thermal desorption is added to adsorbent, by the VOCs desorbing gas that is adsorbed in adsorbent out; Open vavuum pump to vacuumize adsorption tanks, switch cold water and pass into adsorption tanks inner coil pipe, open back-pressure valve and pass into gas in adsorption tanks, cool drying is carried out to adsorbent in adsorption tanks, after cool drying terminates, enter next adsorption treatment step;
(4) step is recycled: by step (3), the desorption that obtains high concentration VOCs gas transport is out vacuumized to ice chest heat exchanger to adsorption tanks, through circulating cooling or the cooling of low temperature refrigerating medium of condensing circuit, make VOCs cooling gaseous fluid, the VOCs gas of 75%-85% is cooled to liquid state, reclaimed by the liquid outlet of ice chest exchanger base, incoagulable gas under uncolled gets back to the entrance of frequency conversion air pump, enters next circulation.
In order to strengthen adsorption effect, the present invention adopts the alternating temperature pressure-swing absorption apparatus alternate treatment that two groups of structures are identical, and two groups of alternating temperature pressure-swing absorption apparatus comprise the adsorption tanks of two alternating sorbent and parsing.When adsorption tanks are in adsorbed state, another adsorption tanks are in parse state.When the amount of adsorbing oil gas in adsorption tanks reaches certain value close to time saturated, carry out absorption and resolving switching.Resolving adopts the inner coil pipe be built in adsorption tanks to be heated by saturated vapor, and along with the rising of adsorbent temperature, saturated extent of adsorption reduces, thus is deviate from by oil gas, and the oil gas deviate from, through vavuum pump vacuum drawn, enters cyclic absorption next time.Adsorption tanks are cylindrical steel containers, and regeneration heating inner coil pipe is equipped with in inside, is provided with adsorbing medium therebetween, adopts the adsorbents such as active carbon, silica gel, zeolite, carbon molecular sieve, can adopt the combination of multiple adsorbent.What the present invention adopted is high heat transfer special-purpose activated charcoal, and adsorbent equipment is not limited to two groups, can be 3 groups or more.
Inner coil pipe is spiral helicine stainless steel pipes, during parsing, saturated vapor enters valve by steam and inlet valve enters into inner coil pipe, Convective Heating adsorbing medium, realize the parsing regeneration of adsorbent, the gas mixture obtained after resolving is through vavuum pump vacuum drawn, enter the entrance of the frequency conversion air pump of front end, alternating temperature pressure-variable adsorption loop, enter and reclaim circulation next time.After extraction terminates, cold water enters valve by cold water and inlet valve enters into inner coil pipe, and open back-pressure valve introduce gas cool drying is carried out to adsorbent, enter next sorption cycle after cool drying terminates.
VOCs gas through the conveying of frequency conversion air pump enters adsorption tanks through intake valve, utilize selective to adsorbate of adsorbent being placed on adsorption tanks inner chamber, the i.e. difference of adhesion power between each component and active carbon in VOCs gas and air Mixture, the constituent of air of difficult absorption is separated with the VOCs gas component of easily adsorbing, after having adsorbed, close the intake valve be connected with the air inlet bottom adsorption tanks, open the air bleeding valve be connected with the gas outlet at adsorption tanks top, remaining gas after absorption is discharged by high-altitude cylinder.
To the adsorption tanks completing absorption, molecular activity is utilized to raise and the characteristic of enhancing with temperature, open steam and enter valve and inlet valve, saturated vapor is entered in inner coil pipe by the entrance point of inner coil pipe and indirectly adds Thermal desorption to high heat transfer special-purpose activated charcoal, by the VOCs desorbing gas that is adsorbed in activated carbon capillary out; Heating simultaneously, is opened the vavuum pump be connected with adsorption tanks bottom air inlet, is vacuumized, and the gas of extraction is sent to the arrival end of frequency conversion air pump, enters next round and reclaims circulation, makes adsorbent obtain regeneration; Saturated vapor goes out valve by steam and discharges.After being parsed, entering valve and inlet valve by opening cold water, passing into cold water at adsorption tanks inner coil pipe, and open back-pressure valve introduce gas cool drying is carried out to adsorbent, enter next sorption cycle after cool drying terminates.
Wherein VOCs gas can adsorb in adsorption tanks, another adsorption tanks inner coil pipe passes into steam to carry out adding Thermal desorption, after being parsed, cold water is passed into by the adsorption tanks inner coil pipe that switches in of valve, and introduce clean gas cool drying is carried out to adsorbent, enter next sorption cycle after cool drying terminates.
The high concentration VOCs gas that vacuum desorption is gone out, be transported to ice chest heat exchanger, through circulating cooling or the cooling of low temperature refrigerating medium of condensing circuit, VOCs gas is made to be cooled to about-35 DEG C, the VOCs gas of 75%-85% is cooled to liquid state, reclaimed by the liquid outlet of ice chest exchanger base, the incoagulable gas under uncolled gets back to the entrance of frequency conversion air pump, enters next circulation.
The present invention is reclaimed and purifying VOCs gas by alternating temperature pressure-variable adsorption loop, and final VOCs gas concentration reaches the requirement that GB or terrestrial reference specify, complete qualified discharge.The VOCs gas that adsorbent parsing of the present invention is deviate from, through vavuum pump vacuum drawn, enters the entrance of the frequency conversion air pump of condensation front end, enters and reclaim circulation next time, again process.The present invention adopts spark arrester prevent flame from scurrying into next link or stop flame to spread at pipeline enclosure, makes device more safe and reliable.Compact conformation of the present invention, floor space is little, and unit according to presetting fully automatic operation, can be supervised without the need to special messenger after connecting.In adsorption tanks of the present invention, adsorbent VOCs gas passes into saturated vapor by inner coil pipe and adds thermal desorption out, makes adsorbent again possess activity, and reduces the secondary pollution that unit is in operation; Pass into cold water by inner coil pipe, and open back-pressure valve introduce gas cool drying activity recovery is carried out to adsorbent, avoid the waste of resource, and can not pollution be produced.Adsorption tanks of the present invention are more than 2, can carry out absorption and the parsing of VOCs gas simultaneously, increase work efficiency.Making full use of absorption reclaims more applicable for low concentration VOCs gas, and the little and safety of absorption heat, condensation is reclaimed more applicable for high concentration VOCs gas, and energy consumption is low, and the rate of recovery is high.
Although the present invention illustrates with regard to preferred embodiment and describes, only it will be understood by those of skill in the art that otherwise exceed claim limited range of the present invention, variations and modifications can be carried out to the present invention.
Claims (7)
1. an alternating temperature pressure swing adsorption recovery unit, is characterized in that, comprising: frequency conversion air pump (201), alternating temperature pressure-swing absorption apparatus more than two, vavuum pump (301), ice chest heat exchanger (305); Often organize alternating temperature pressure-swing absorption apparatus and comprise adsorption tanks, intake valve, parsing valve, air bleeding valve, back-pressure valve, adsorption tanks comprise absorption tank body, be placed on the adsorbent in adsorption tanks intracoelomic cavity and make heating and the resolver of adsorbent reactivation; The outlet of frequency conversion air pump (201) is connected with intake valve by the first spark arrester (202), intake valve is connected with the air inlet of absorption tank base, the import of resolving valve is connected with between the air inlet of absorption tank base and intake valve outlet, the outlet of resolving valve is connected with ice chest heat exchanger (305) entrance by vavuum pump (301), ice chest heat exchanger (305) outlet is connected with the entrance of frequency conversion air pump (201), and the entrance of frequency conversion air pump (201) is connected with oil gas entrance by the second spark arrester (203); The gas outlet on absorption tank body top is connected with high-altitude cylinder (304) by air bleeding valve, the 3rd spark arrester (204), between the gas outlet and the air inlet of air bleeding valve of absorption tank body, be also connected with back-pressure valve.
2. alternating temperature pressure swing adsorption recovery unit as claimed in claim 1, it is characterized in that, the heating of alternating temperature pressure-swing absorption apparatus and resolver comprise the helical form stainless steel inner coil pipe being arranged on adsorption tanks intracoelomic cavity; The sidewall of absorption tank body is provided with first interface and the second interface; The outlet that this inner coil pipe entrance point enters valve (501) through first interface by inlet valve and steam is connected, and this inner coil pipe port of export goes out valve (505) import through the second interface by outlet valve and steam and is connected; The outlet that cold water enters valve (502) is also connected with between the outlet that inlet valve import and steam enter valve (501); The outlet of outlet valve and steam go out also to be connected with cold water between valve (505) import and to go out valve (506) import.
3. alternating temperature pressure swing adsorption recovery unit as claimed in claim 2, it is characterized in that, two groups of alternating temperature pressure-swing absorption apparatus comprise adsorption tanks A (302), adsorption tanks B (303), intake valve A (401), intake valve B (402), resolve valve A (403), resolve valve B (404), air bleeding valve A (405), air bleeding valve B (406), back-pressure valve A (407), back-pressure valve B (408); Frequency conversion air pump (201) is connected with the air inlet of adsorption tanks A (302) bottom by intake valve A (401); Be connected with the import of resolving valve A (403) between the air inlet of adsorption tanks A (302) bottom and intake valve A (401) outlet, the outlet of resolving valve A (403) is connected with vavuum pump (301); The gas outlet on adsorption tanks A (302) top is connected with high-altitude cylinder (304) by air bleeding valve A (405), the 3rd spark arrester (204), is also connected with the outlet of back-pressure valve A (407) between the gas outlet on adsorption tanks A (302) top and air bleeding valve A (405) air inlet; The inner coil pipe entrance point of adsorption tanks A (302) inner chamber is connected with the outlet of inlet valve A (503), and the outlet that the outlet of valve (501) is entered in inlet valve A (503) import respectively with steam, cold water enters valve (502) is connected; The inner coil pipe port of export of adsorption tanks A (302) is connected with outlet valve A (507) import, and outlet valve A (507) outlet goes out valve (505) import respectively with steam, cold water goes out valve (506) and is connected; Frequency conversion air pump (201) is connected with the air inlet of adsorption tanks B (303) bottom by intake valve B (402); Be connected with the import of resolving valve B (404) between the air inlet of adsorption tanks B (303) bottom and intake valve B (402) outlet, the outlet of resolving valve B (404) is connected with vavuum pump (301); The gas outlet on adsorption tanks B (303) top is connected with high-altitude cylinder (304) by air bleeding valve B (406), the 3rd spark arrester (204), is also connected with the outlet of back-pressure valve B (408) between the gas outlet on adsorption tanks B (303) top and air bleeding valve B (406) air inlet; The inner coil pipe entrance point of adsorption tanks B (303) inner chamber exports with inlet valve B (504) and is connected, and the outlet that the outlet of valve (501) is entered in inlet valve B (504) import respectively with steam, cold water enters valve (502) is connected; The inner coil pipe port of export of adsorption tanks B (303) is connected with outlet valve B (508) import, and outlet valve B (508) outlet goes out valve (505) import respectively with steam, cold water goes out valve (506) import and is connected.
4. alternating temperature pressure swing adsorption recovery unit as claimed in claim 3, it is characterized in that, back-pressure valve A (407), back-pressure valve B (408) entrance meet air or N
2.
5. alternating temperature pressure swing adsorption recovery unit as claimed in claim 1, is characterized in that, ice chest heat exchanger (305) bottom correspondence has liquid outlet.
6. alternating temperature pressure swing adsorption recovery unit as claimed in claim 1, it is characterized in that, adsorption tanks are cylindrical steel pressure vessel, and regeneration heating inner coil pipe is equipped with in inside.
7. alternating temperature pressure swing adsorption recovery unit as claimed in claim 6, is characterized in that, be provided with adsorbing medium in described adsorption tanks, and described adsorbing medium is active carbon or silica gel or zeolite or carbon molecular sieve.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420540A (en) * | 2019-06-27 | 2019-11-08 | 杨皓 | A kind of double tower integration pressure swing adsorption technique |
| CN110975606A (en) * | 2019-12-20 | 2020-04-10 | 航电中和山东医疗技术有限公司 | Air purification method and application thereof |
-
2015
- 2015-06-05 CN CN201520386785.0U patent/CN204735090U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420540A (en) * | 2019-06-27 | 2019-11-08 | 杨皓 | A kind of double tower integration pressure swing adsorption technique |
| CN110975606A (en) * | 2019-12-20 | 2020-04-10 | 航电中和山东医疗技术有限公司 | Air purification method and application thereof |
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