CN107456839A - Utilize the device for recovering oil and gas of condensation-adsorption method and absorption and the switching device of desorption - Google Patents
Utilize the device for recovering oil and gas of condensation-adsorption method and absorption and the switching device of desorption Download PDFInfo
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- CN107456839A CN107456839A CN201710853813.9A CN201710853813A CN107456839A CN 107456839 A CN107456839 A CN 107456839A CN 201710853813 A CN201710853813 A CN 201710853813A CN 107456839 A CN107456839 A CN 107456839A
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- 238000001179 sorption measurement Methods 0.000 title claims abstract description 115
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims abstract description 53
- 238000003795 desorption Methods 0.000 title claims abstract description 22
- 238000009833 condensation Methods 0.000 claims abstract description 68
- 230000005494 condensation Effects 0.000 claims abstract description 67
- 238000011084 recovery Methods 0.000 claims abstract description 24
- 239000002250 absorbent Substances 0.000 claims abstract description 7
- 230000002745 absorbent Effects 0.000 claims abstract description 7
- 239000003507 refrigerant Substances 0.000 claims description 22
- 230000000694 effects Effects 0.000 claims description 20
- 239000003208 petroleum Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 239000003463 adsorbent Substances 0.000 description 13
- 230000008569 process Effects 0.000 description 7
- 239000002594 sorbent Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 210000003660 reticulum Anatomy 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000002336 sorption--desorption measurement Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/402—Further details for adsorption processes and devices using two beds
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
It is a kind of to be included using the device for recovering oil and gas of condensation-adsorption method and absorption and the switching device of desorption, the device：Condensation part, there is condensation part oil gas entrance, condensation part oil gas vent, condensation part oil-out；Adsorption section, has adsorption section oil gas entrance, adsorption section oil gas vent, exhaust outlet, adsorption section oil gas entrance connection condensation part oil gas vent, and exhaust outlet is arranged at the top of adsorption section；Absorption portion, there is absorbent entrance, absorption portion oil gas entrance, absorption portion oil inlet and oil rich outlet；Dry vacuum pump, connect condensation part, adsorption section and absorption portion, with vavuum pump oil inlet, vavuum pump oil-out, vavuum pump oil gas entrance, vavuum pump oil gas vent, vavuum pump oil inlet connects condensation part oil-out, vavuum pump oil-out connection absorption portion oil inlet, vavuum pump oil gas entrance connects adsorption section oil gas vent, vavuum pump oil gas vent connection absorption portion oil gas entrance.The present invention by condense, adsorb, absorb after concentration of oil and gas discharged detected value≤5g/m3, the rate of recovery >=99%.
Description
Technical field
The present invention relates to a kind of device for recovering oil and gas, more particularly to a kind of device for recovering oil and gas using condensation-adsorption method and
The switching device with desorption is adsorbed in device for recovering oil and gas.
Background technology
Extremely serious evaporating loss is produced because the various volatile organic matters such as gasoline (VOCs) are very easy to volatilization,
The tank field and oil article vehicle platform of oil depot and oil plant are easy to be filled with " oily taste ".These oil gas largely evaporate and are directly discharged to
Air, serious quantity loss and Quality Down are not only caused, and seriously pollute atmospheric environment, leave great fire
Hidden danger.Therefore, the place such as oil depot, oil plant has to carry out petroleum vapor recovery processing.
Country has formulated standard (GB20950-2007) and has forced to carry out installation petroleum vapor recovery in storage tank farm (including oil plant)
Device, and region and time limit is determined, and emission limit.
At present, the separation and recovery method of oil gas and air there are into absorption process, absorption method, condensation method and membrane separation process etc..Should
Mainly condensation method, absorption method, but both approaches are in economic indicator and technical performance side for places such as oil depot, oil plants
Face is all not ideal enough.The vavuum pump cooling effect used in particularly existing condensation method is poor, and vacuum is relatively low, therefore have impact on de-
Attached effect.
Patent 200910145750.7 " oil gas by condensation-adsorption combined technology retracting device and method " is to employ condensation
With the combination of two kinds of technique of absorption, it is condensed is completed by evaporator, oil water separator, compressor and the multiple links of condenser.
Patent 00118594.2 " a kind of technological process for absorbing adsorption combined recovery oil gas " is using absorption and sorption, cold
Solidifying sequence flow, the corresponding absorption tower volume of flow of the order must be very big, and space and height are big；Absorption method simultaneously
Heat of adsorption generation is had during oil gas is reclaimed, absorption fuel factor can cause sorbent life to shorten, for commonly using adsorbent
Activated carbon even can cause burning.
In addition, in four kinds of methods of petroleum vapor recovery, wherein absorption method is more satisfactory to the concentration of emission for controlling oil gas, but existing
Some adsorbent equipments are excessively cumbersome, and the valve used is too many, control inconvenience.Such as patent application 200710190122.1 and
Adsorbent equipment part in 00118594.2, the valve used is just up to as many as 6.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of device for recovering oil and gas using condensation-adsorption method, the oil
Gas recovering device can overcome the defects of existing vacuum is relatively low, desorption effect is poor using dry vacuum pump, and increase suction
The effect of petroleum vapor recovery can be effectively improved by receiving link.
The technical problems to be solved by the invention also reside in a kind of switching dress for being used to adsorb and be desorbed in petroleum vapor recovery
Put, it is possible to reduce the quantity of valve in system, and it is simple in construction be easy to control, can also overcome what existing valve occurred " to suppress
Gas " phenomenon.
To achieve these goals, the invention provides a kind of device for recovering oil and gas using condensation-adsorption method, including：It is cold
Solidifying portion, for cooling to oil gas to make oil gas be converted into liquid by gaseous state, the condensation part has condensation part oil gas entrance, cold
Solidifying portion's oil gas vent, condensation part oil-out；
Adsorption section, the condensation part is connected, for further adsorbing and being desorbed the oil gas by condensation, and will be unadsorbed
Air discharge, the adsorption section has adsorption section oil gas entrance, adsorption section oil gas vent, exhaust outlet, the adsorption section oil gas
Entrance connects the condensation part oil gas vent, and the exhaust outlet is arranged at the top of the adsorption section；
Absorption portion, for the oil gas after the adsorption section is desorbed further to be absorbed and forms solution, the absorption
Portion has absorbent entrance, absorption portion oil gas entrance, absorption portion oil inlet and oil rich outlet；
Dry vacuum pump, the condensation part, the adsorption section and the absorption portion are connected, for by condensed cold oil
And the oil-gas transportation after adsorption/desorption has vavuum pump oil inlet, vavuum pump fuel-displaced to the absorption portion, the dry vacuum pump
Mouth, vavuum pump oil gas entrance, vavuum pump oil gas vent, the vavuum pump oil inlet connects the condensation part oil-out, described true
Sky pumps out hydraulic fluid port connection absorption portion oil inlet, and the vavuum pump oil gas entrance connects the adsorption section oil gas vent, described
Vavuum pump oil gas vent connects the absorption portion oil gas entrance；
Wherein, the vavuum pump oil inlet connects the condensation part oil-out, is that will pass through condensed low-temperature oil to dry
Formula vavuum pump is cooled down, so that dry vacuum pump operational effect is good, vacuum is very high.
The above-mentioned device for recovering oil and gas using condensation-adsorption method, wherein, the condensation part includes：Heat exchanger and refrigerant,
The heat exchanger includes housing, condenser pipe, refrigerant pipe, and the condenser pipe, refrigerant pipe are longitudinal respectively, are disposed in housing,
The condensation part oil gas entrance, condensation part oil gas vent are separately positioned on housing and connect the condenser pipe, on the housing
It is additionally provided with the refrigerant inlet and refrigerant exit for connecting the refrigerant pipe.
The above-mentioned device for recovering oil and gas using condensation-adsorption method, wherein, the setting temperature of the condensation part is 0~-40
℃。
The above-mentioned device for recovering oil and gas using condensation-adsorption method, wherein, the adsorption section includes：Two adsorption tanks and switching
Device, two adsorption tanks are in parallel, and the switching device includes three-way switch valve and connection and controls three-way switch valve
Controller, the three-way switch valve is separately positioned between the adsorption tanks and adsorption section oil gas entrance of two parallel connections, two suctions in parallel
Between attached tank and adsorption section oil gas vent and between two adsorption tanks and exhaust outlet in parallel, described in the controller Synchronization Control
Three-way switch valve.
The above-mentioned device for recovering oil and gas using condensation-adsorption method, wherein, the controller is electric controller or pneumatic
Controller.
The above-mentioned device for recovering oil and gas using condensation-adsorption method, wherein, the absorption portion includes：Absorption tower, poor oil pump,
Rich oil pump, neighbouring top is provided with spray equipment in the absorption tower, and the spray equipment connects the oil-out of the poor oil pump,
The absorption portion oil gas entrance, absorption portion oil inlet are separately positioned on the bottom on the absorption tower, and the oil rich outlet is set
Put in the bottom on the absorption tower and connect the rich oil pump.
The above-mentioned device for recovering oil and gas using condensation-adsorption method, wherein, the oil-out of the poor oil pump is also connected with described
Vavuum pump oil inlet.
The above-mentioned device for recovering oil and gas using condensation-adsorption method, wherein, the Xiang Duan on the absorption tower is additionally provided with absorption
Tower oil gas vent, the absorption tower oil gas vent connect the condensation part oil gas entrance.
To achieve these goals, the present invention also provides a kind of switching dress for being used to adsorb and be desorbed in petroleum vapor recovery
Put, adsorb includes two adsorption tanks and vavuum pump in parallel with desorption, and two adsorption tanks have oil gas entrance, oil gas vent and exhaust
Mouthful, vavuum pump connection oil gas vent, the switching device includes three-way switch valve and connection and the control for controlling three-way switch valve
Device processed, the three-way switch valve are separately positioned on the oil gas entrance of two adsorption tanks, the oil gas vent of two adsorption tanks and two absorption
The exhaust outlet of tank.
The above-mentioned switching device for being used to adsorb and be desorbed in petroleum vapor recovery, wherein, the three-way switch valve includes valve
Seat, the valve element being arranged in valve seat, the valve rod for connecting valve element, the controller connect the valve rod, and the controller is synchronously controlled
System connects the three-way switch valve of oil gas entrance, oil gas vent and exhaust outlet respectively.
The technical effects of the invention are that：Device for recovering oil and gas disclosed by the invention employs dry vacuum pump, cooling effect
Fruit is good, vacuum is high, desorption effect is good, and adsorbent usage amount can reduce 10~50%, and the life-span can improve 20~50%.This
The device for recovering oil and gas of disclosure of the invention, by condense, adsorb, absorb after concentration of oil and gas discharged detected value≤5g/m3, the rate of recovery >=
99%, petroleum vapor recovery effect is more preferable.In addition, only it just can realize two adsorption tanks each with 3 three-way switch valve Synchronization Controls
The switching that replaces between absorption and desorption is completed, simple in construction, control is simply, moreover it is possible to which " the feeling suffocated " for overcoming existing valve to occur is existing
As.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Brief description of the drawings
Fig. 1 is workflow schematic diagram of the present invention；
Fig. 2 is one embodiment of the invention workflow schematic diagram；
Fig. 3 is switching device application schematic diagram of the present invention；
Fig. 4 is switching device structural representation of the present invention；
Fig. 5 is the switching device control schematic diagram of the present invention；
Fig. 6 is present invention heat exchanger structural representation.
Wherein, reference
It is 1 condensation part, 11 condensation part oil gas entrances, 12 condensation part oil gas vents, 13 refrigerant inlets, 14 refrigerant exits, 15 cold
Solidifying portion's oil-out, 110 heat exchanger shells, 111 condenser pipes, 112 refrigerant pipes, a, b, c heat exchanger interface, 2 adsorption sections, 21,22 are inhaled
Attached tank, 23 adsorption section oil gas entrances, 24 adsorption section oil gas vents, 25 exhaust outlets, 200 valves, 201,202,203 threeways switching
Valve, 2011 valve seats, 2012 valve elements, 2013 valve rods, 2014 bonnets, 204 connecting rod casees, 2041 connecting rods, 3 absorption portions, 31 absorbents enter
It is mouth, 32 absorption portion oil gas entrances, 33 absorption portion oil inlets, 34 oil rich outlets, 35 absorption portion exhaust outlets, 4 dry vacuum pumps, 41 true
Empty pump oil gas entrance, 42 vavuum pump oil gas vents, 43 vavuum pump oil inlets, 44 vavuum pump oil-outs, 5 rich oil pumps, 6 poor oil pumps.
Embodiment
The structural principle and operation principle of the present invention are described in detail below in conjunction with the accompanying drawings：
Referring to Fig. 1, in the embodiment shown in Fig. 1, the present invention discloses a kind of oil using condensation-adsorption method
Gas recovering device, including：Condensation part 1, adsorption section 2, absorption portion 3, dry vacuum pump 4, poor oil pump 5, rich oil pump 6.
Workflow of the present invention as shown in the figure, condensation part 1, receive the oil gas of collection, oil gas is cooled so as to make oil gas by
Gaseous state is converted into liquid, is then attached to adsorption section 2, and adsorption section 2 further adsorbs the oil gas by condensation and desorption, and will
Unadsorbed air discharge, absorption portion 3, the oil gas after adsorption section 2 is desorbed further is absorbed and forms solution, absorption portion
3 connect condensation part 1 and adsorption section 2 by dry vacuum pump 4, and connect poor oil pump 6, and the oil gas after adsorption/desorption is absorbed
Processing, residual gas is transported to condensation part again and enters next recovery circulation.
Oil gas circulation and stress, first oil gas are first passed through condensation and reduced by the present invention by condensation-several flows of absorption-absorption
Temperature, in addition to reclaiming a certain amount of oil gas, the reduction of oil gas temperature can also be made, prevent the generation of heat of adsorption, and will condensation
The fluid oil to get off with it is oil-poor together with cool down dry vacuum pump, further enhancing the cooling dynamics of dry vacuum pump, improve
Vacuum, so desorption effect is more preferable.Condensation-absorption-absorption process that the present invention uses can overcome existing single using suction
Receipts method, absorption method or condensation method are respective with strong points and the defects of the rate of recovery is undesirable, for example, the absorption process rate of recovery is low, inhale
Attached method cost is high, inlet gas concentration height causes adsorption effect difference and sorbent life is short and caused high easily spontaneous combustion etc. of heat, and
Condensation method needs ultralow temperature just to ensure the rate of recovery, and therefore refrigeration system is more complicated.It can also overcome using condensation-absorption method
Middle condensation flow setting is numerous and diverse, part takes up an area the defects of big more, and can also overcome to absorb in absorption-adsorption-condensation method partly needs
Using the absorption tower of large volume, space and height are big；Absorption method has heat of adsorption generation during oil gas is reclaimed simultaneously,
Absorption fuel factor can cause sorbent life to shorten, for commonly using the defects of activated carbon of sorbent even can cause burning.
Refer to Fig. 2, Fig. 6 and further illustrate the specific embodiment of the invention
As shown in fig. 6, condensation part 11 uses tubular heat exchanger, the partial heat of hot fluid is passed into refrigerant to reduce
The temperature of hot fluid, heat exchanger include housing 110, condenser pipe 111, refrigerant pipe 112, and condenser pipe 111, refrigerant pipe 112 are indulged respectively
To, be disposed in housing 110, condensation part oil gas entrance 11, condensation part oil gas vent 12 connect condenser pipe 111, refrigerant enters
Mouth 13, refrigerant exit 14 connect refrigerant pipe 112.Oil gas passes through after entering heat exchanger from condensation part oil gas entrance 11
As depicted circulation, heat exchange, the fluid oil condensed out are discharged from condensation part oil-out 15, and Remaining Oil And Gas is from cold
Solidifying portion's oil gas vent 12 is discharged.Multiple interface a, b, c are additionally provided with heat exchanger shell 110, table one is heat exchanger interface table.
Table one
The temperature setting of condensation part is 0~-40 DEG C by the present invention.Therefore, the present invention can use using freon as
The common refrigerating method of refrigerant, so compared to for the existing condensation using ultralow temperature to refrigeration system without requirements at the higher level,
Cost is low.
Adsorption section 2 is in parallel using two or more than two adsorption tanks, by taking two adsorption tanks 21,22 as an example, adsorption section oil gas
Entrance 23 connects condensation part oil gas vent 12, by the further absorption of oil gas by condensation and desorption, passes through cutting to valve 200
The switching for controlling and then controlling two adsorption tanks 21,22 to be adsorbed and be desorbed is changed, exhaust outlet 25 is arranged at the top of adsorption section,
Air not to be adsorbed is directly discharged into air from exhaust outlet 25.Adsorbent of the present invention uses activated carbon.
Absorption portion 3 is one tower, and absorbent entrance 31 is arranged on top, absorption portion oil gas entrance 32, absorption portion oil inlet
33 are arranged on the bottom in absorption portion 3, and oil rich outlet 34 is arranged on the bottom in absorption portion, and the top in absorption portion 3 is additionally provided with exhaust outlet
35, it is oil-poor to be used as absorbent to deliver to absorbent entrance 31 by poor oil pump 6, sprayed in tower, with the high concentration after absorption
Oil gas counter current contacting, oil gas is absorbed, just becomes so-called " rich oil " (i.e. by Poor oil absorbing) during high-concentration oil vapor involvement is oil-poor,
" rich oil " squeezes into holding vessel by rich oil pump 5, and the oil gas that such oil gas just completes a circulation of retracting device of the present invention returns
Receive, remaining gas enters heat exchanger at the oil gas entrance 11 of retracting device front end again by exhaust outlet 35, carries out next follow
The petroleum vapor recovery of ring.
The present invention completes the connection of condensation part 1, adsorption section 2 and absorption portion 3, existing absorption using dry vacuum pump 4
In mainly adsorbent is desorbed using liquid-ring vacuum pump, because vacuum is low, desorption effect is bad, so also influence absorption
The oil-poor cooling of normal temperature is typically used in agent life-span, the cooling of dry vacuum pump, and when ambient temperatures are low, vavuum pump operational effect is good, very
Reciprocal of duty cycle is very high, but can be reduced for the very high occasion of environment temperature, vacuum, influences adsorbent desorption effect, dry type of the present invention
Vavuum pump is provided with vavuum pump oil inlet 43, vavuum pump oil-out 44, vavuum pump oil gas entrance 41, vavuum pump oil gas vent 42, very
Empty pump oil inlet 43 connects condensation part oil-out 15 and poor oil pump 6, and vavuum pump oil-out 44 connects absorption portion oil inlet 33, vacuum
Pump oil gas entrance 41 connects adsorption section oil gas vent 12, and vavuum pump oil gas vent 42 connects absorption portion oil gas entrance 32.Wherein, very
Empty pump oil inlet 43 connect condensation part oil-out 15 and poor oil pump 6 be will by condensed low-temperature oil with it is oil-poor together with to dry type
Vavuum pump 4 is cooled down, and compared with existing use liquid-ring vacuum pump carries out desorption to adsorbent, has obvious vacuum pump operation
The features such as effect is good, vacuum is high, and then desorption effect is good, sorbent life improves.
The present invention operation and the course of work be：Oil gas is carried out from the oil gas entrance 11 of heat exchanger into heat exchanger 1 first
Condensation.Minimum temperature is preferably arranged to 0~-40 DEG C in heat exchanger.About 50% hydrocarbon component be condensed into fluid oil with from oil-poor
Pump 6 come it is oil-poor enter dry vacuum pump 4 together, and together cool down dry vacuum pump, then another rise is returned into absorption tower 3
Receive.The oil gas not being condensed enters adsorption tanks 21 and adsorption tanks 22 by oil gas vent 12, is adsorbed or is desorbed, big absolutely
Part oil gas can be adsorbed, and air wherein not to be adsorbed is directly discharged into air from exhaust outlet 25.Adsorption tanks typically may be used
With using two or more progress alternating sorbents and desorption.When using two adsorption tanks 21 and adsorption tanks 22, adsorption tanks
21 or the adsorbent adsorption saturation in adsorption tanks 22 or during close to saturation, dry vacuum pump 4 just starts, to adsorption tanks 21 or absorption
Tank 22 is desorbed, and the high-concentration oil vapor for being desorbed out enters absorption tower 3 through dry vacuum pump 4, by defeated from poor oil pump 6 in tower
The Poor oil absorbing brought, the rich oil after absorption delivers to holding vessel by rich oil pump 5, so as to complete petroleum vapor recovery, wherein surplus
Oil gas entrance 11 of the remaining gas through the re-enter retracting device front end of exhaust outlet 35 enters heat exchanger.
Fig. 3, Fig. 4, Fig. 5 are referred to, the present invention also discloses a kind of switching dress for being used to adsorb and be desorbed in petroleum vapor recovery
Put.
As shown in Fig. 2 need to use 6 valves 200, absorption method process operation in switching of the common absorption with desorption
A feature be to have action switchover operation of the two-way gas circuit by valve, i.e., by 6 valve transfers as shown in Figure 2 (point
Two groups) absorption of two adsorption tanks and the switching being desorbed are realized, so when valve event is inconsistent or breaks down, influence work
Skill is run, or even gas circuit is occurred and all closed and the phenomenon of " feeling suffocated ".
The switching device that the present invention discloses includes three-way switch valve and connection and the controller for controlling three-way switch valve, such as
Shown in Fig. 3, the present invention realizes absorption and the switching of desorption between two adsorption tanks 21,22 by 3 three-way switch valves, not only
Reduce valve quantity, while decrease the probability of operation troubles, be used in combination, be not in " to suppress the characteristics of due to triple valve
The phenomenon of gas ".Three-way switch valve 201 is arranged on the oil gas entrance 23 of two adsorption tanks, and three-way switch valve 202 is arranged on two adsorption tanks
Oil gas vent 24, three-way switch valve 203 is arranged on the exhaust outlet 25 of two adsorption tanks.
As shown in figure 4, three-way switch valve includes valve seat 2011, the valve element 2012 being arranged in valve seat, the valve for connecting valve element
Bar 2013 and bonnet 2014, three-way switch valve is two mutually orthogonal pipelines of connection, without keeping Article 3 pipeline simultaneously
Be interconnected, control Spool rotating to change gas channel become gas flow direction by valve rod by controller
Change, change gas motion direction (i.e. airflow direction switches) purpose so as to reach.Three-way switch valve 201,202,203 of the present invention is adopted
With Synchronization Control, realize that the scheme of Synchronization Control can select to be, each switching valve sets a controller respectively, by 3 controls
Device series control processed, it is also an option that being embodiment as shown in Figure 5, i.e., using a controller (not indicated in figure) point
Not Lian Jie 3 three-way switch valves 201,202 and 203, as illustrated, by the connecting rod 2041 that is arranged in connecting rod case 204 simultaneously
Connect and drive the valve rod 2013 of 3 three-way switch valves to move and make valve element while rotate, realize cutting for absorption/separating process
Change.So, the present invention uses 6 by a controller to realize that the technical scheme of the Synchronization Control of 3 three-way switch valves is compared
Individual two-way valve, first, 3 three-way switch valves can greatly save cost, and second, controller can realize that 3 threeways are cut
The Complete Synchronization of valve events is changed, compared to being compared by the way of individually controlling valve element to act using each controller, can more improve technique
Stability.Controller of the present invention can select electric controller to be also an option that pneumatic controller.
Refering to Fig. 3, the handoff procedure that the switching device that the present invention discloses is used to adsorb and be desorbed is：
The left end of three-way switch valve 201 and three-way switch valve 203 is connected, and closes 201,203 right-hand member, threeway is cut
The right-hand member for changing valve 202 is connected, and closes its left end, and now, oil gas enters adsorption tanks 21 from air inlet pipe through three-way switch valve 201,
Oil gas is set to be attracted in adsorbent, and clean air then enters along pipeline from the left end of three-way switch valve 203 and upper end
Exhaust outlet pipe 25 is discharged into air.At the same time, adsorption tanks 22 are in detachment status, under the swabbing action of dry vacuum pump 4, fill out
The adsorbent filled in adsorption tanks 22 discharges the oil gas being filled, and oil gas is along right-hand member of the pipeline through three-way switch valve 202
Enter next technological process through dry vacuum pump 4 with upper end.Conversely, when three-way switch valve 201 and the right-hand member of three-way switch valve 203
Connect, close their left end, the left end of triple valve 202 is connected, and closes its right-hand member, then adsorption tanks 22 start to adsorb, and adsorb
Tank 21 starts to be desorbed, and realizes absorption and replaces switching with what is be desorbed.
The present invention uses above-mentioned three-way switch valve 201,202,203 using the device for recovering oil and gas of condensation-adsorption method, has
Following advantage：
1. device for recovering oil and gas of the present invention, oil gas is first cooled to 0~-40 DEG C, so had before adsorption tanks are entered
50% or so hydrocarbon component is condensed into liquid and directly reclaimed, and remaining gas concentration can reduce by 50% or so, and adsorbent uses
Amount substantially reduces, and the life-span also greatly prolongs；
2. device for recovering oil and gas of the present invention uses dry vacuum pump, vacuum is high, and desorption effect is good, especially with cold
The oil product cooling dry vacuum pump to get off is coagulated, vavuum pump is operated in relatively low temperature, is advantageous to continue high vacuum operation.
3. device for recovering oil and gas of the present invention realizes that gas circuit switches using 3 three-way switch valves, reduce valve quantity, simultaneously
Decrease the probability of operation troubles, it is often more important that, be not in the phenomenon of " feeling suffocated " the characteristics of due to threeway.
The device for recovering oil and gas that the present invention discloses, suitable for the oil gas circulation and stress in the related place such as oil depot, oil plant, make
Above-mentioned place air is maintained at purification state, atmospheric environment is not contaminated, concentration of oil and gas discharged detected value≤5g/m3, recovery
Rate >=99%, adsorbent usage amount can reduce 10~50%, and service life can improve 20~50%, cold especially with heat exchanger
Coagulate the fluid oil that gets off with it is oil-poor together with cool down dry vacuum pump, further enhancing the cooling dynamics of dry vacuum pump, improve
Vacuum, so desorption effect is more satisfactory.
In addition, the present invention by condensation-several technological processes of absorption-absorption by oil gas circulation and stress, to each flow all
Without very high request and complicated setting, the high effect of the rate of recovery can be reached, therefore, the retracting device system that the present invention discloses is matched somebody with somebody
System is simple, easily realizes, rate of recovery height.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Know those skilled in the art when can be made according to the present invention it is various it is corresponding change and deformation, but these corresponding change and become
Shape should all belong to the protection domain of appended claims of the invention.
Claims (10)
- A kind of 1. device for recovering oil and gas using condensation-adsorption method, it is characterised in that including：Condensation part, for cooling to oil gas To make oil gas be converted into liquid by gaseous state, the condensation part has condensation part oil gas entrance, condensation part oil gas vent, condensation part Oil-out；Adsorption section, the condensation part is connected, for by the oil gas by condensation further absorption and desorption, and by unadsorbed sky Gas is discharged, and the adsorption section has adsorption section oil gas entrance, adsorption section oil gas vent, exhaust outlet, the adsorption section oil gas entrance The condensation part oil gas vent is connected, the exhaust outlet is arranged at the top of the adsorption section；Absorption portion, for the oil gas after the adsorption section is desorbed further to be absorbed and forms solution, the absorption portion tool There are absorbent entrance, absorption portion oil gas entrance, absorption portion oil inlet and oil rich outlet；Dry vacuum pump, the condensation part, the adsorption section and the absorption portion are connected, for by condensed cold oil and suction To the absorption portion, the dry vacuum pump has vavuum pump oil inlet, vavuum pump oil-out, true for oil-gas transportation after attached desorption Empty pump oil gas entrance, vavuum pump oil gas vent, the vavuum pump oil inlet connect the condensation part oil-out, and the vacuum pumps out Hydraulic fluid port connects absorption portion oil inlet, and the vavuum pump oil gas entrance connects the adsorption section oil gas vent, the vavuum pump Oil gas vent connects the absorption portion oil gas entrance；Wherein, the vavuum pump oil inlet connects the condensation part oil-out, and being will be true to dry type by condensed low-temperature oil Empty pump is cooled down, so that dry vacuum pump operational effect is good, vacuum is very high.
- 2. the device for recovering oil and gas according to claim 1 using condensation-adsorption method, it is characterised in that the condensation part bag Include：Heat exchanger and refrigerant, the heat exchanger include housing, condenser pipe, refrigerant pipe, the condenser pipe, refrigerant pipe respectively longitudinal direction, Every being arranged in housing, the condensation part oil gas entrance, condensation part oil gas vent are separately positioned on housing and connected described cold It is solidifying to manage, it is additionally provided with the refrigerant inlet and refrigerant exit for connecting the refrigerant pipe on the housing.
- 3. the device for recovering oil and gas according to claim 2 using condensation-adsorption method, it is characterised in that the condensation part It is 0~-40 DEG C to set temperature.
- 4. the device for recovering oil and gas according to claim 1 using condensation-adsorption method, it is characterised in that the adsorption section bag Include：Two adsorption tanks and switching device, two adsorption tanks are in parallel, and the switching device includes three-way switch valve and connection simultaneously The controller of three-way switch valve is controlled, the three-way switch valve is separately positioned on two adsorption tanks in parallel and adsorption section oil gas entrance Between, between two in parallel adsorption tanks and adsorption section oil gas vent and between two adsorption tanks and exhaust outlet in parallel, the control Three-way switch valve described in device Synchronization Control processed.
- 5. the device for recovering oil and gas according to claim 4 using condensation-adsorption method, it is characterised in that the controller is Electric controller or pneumatic controller.
- 6. the device for recovering oil and gas according to claim 1 using condensation-adsorption method, it is characterised in that the absorption portion bag Include：Absorption tower, poor oil pump, rich oil pump, neighbouring top is provided with spray equipment in the absorption tower, and the spray equipment connects institute The oil-out of poor oil pump is stated, the absorption portion oil gas entrance, absorption portion oil inlet are separately positioned under the absorption tower Portion, the oil rich outlet are arranged on the bottom on the absorption tower and connect the rich oil pump.
- 7. the device for recovering oil and gas according to claim 6 using condensation-adsorption method, it is characterised in that the poor oil pump Oil-out is also connected with the vavuum pump oil inlet.
- 8. the device for recovering oil and gas according to claim 6 using condensation-adsorption method, it is characterised in that the absorption tower Xiang Duan is additionally provided with absorption tower oil gas vent, and the absorption tower oil gas vent connects the condensation part oil gas entrance.
- Be used for the switching device adsorbing and be desorbed in petroleum vapor recovery 9. a kind of, absorption be desorbed include two adsorption tanks in parallel and Vavuum pump, two adsorption tanks have oil gas entrance, oil gas vent and exhaust outlet, vavuum pump connection oil gas vent, it is characterised in that institute Stating switching device includes three-way switch valve and connection and the controller for controlling three-way switch valve, and the three-way switch valve is set respectively Put the exhaust outlet in the oil gas entrance of two adsorption tanks, the oil gas vent of two adsorption tanks and two adsorption tanks.
- 10. the switching device according to claim 9 for being used to adsorb and be desorbed in petroleum vapor recovery, it is characterised in that institute Stating three-way switch valve includes valve seat, the valve element being arranged in valve seat, the valve rod for connecting valve element, and the controller connects the valve Bar, the controller Synchronization Control connect the three-way switch valve of oil gas entrance, oil gas vent and exhaust outlet respectively.
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| CN201710853813.9A CN107456839A (en) | 2017-09-14 | 2017-09-14 | Utilize the device for recovering oil and gas of condensation-adsorption method and absorption and the switching device of desorption |
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| CN201710853813.9A CN107456839A (en) | 2017-09-14 | 2017-09-14 | Utilize the device for recovering oil and gas of condensation-adsorption method and absorption and the switching device of desorption |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310904A (en) * | 2018-03-15 | 2018-07-24 | 浙江佳力科技股份有限公司 | PID control automatically adjusts the petroleum vapor recovery unit and oil-gas recovery method of adsorptive pressure, desorption pressure |
| CN111471478A (en) * | 2020-04-14 | 2020-07-31 | 青岛飞普思环保科技有限公司 | Method for reducing hot spot temperature of adsorption bed in oil gas recovery process by adsorption method |
| CN111960373A (en) * | 2020-08-25 | 2020-11-20 | 优必得石油设备(苏州)有限公司 | Method and device for recycling tertiary oil gas of gas station |
| CN112755720A (en) * | 2019-11-06 | 2021-05-07 | 中国石油化工股份有限公司 | Gas adsorption condensation recovery method and recovery system |
| CN115501636A (en) * | 2022-10-21 | 2022-12-23 | 深圳市德捷力低温技术有限公司 | VOC condensation recovery plant |
| TWI839040B (en) * | 2022-12-23 | 2024-04-11 | 華懋科技股份有限公司 | Adsorption tubular membrane oil and gas treatment thermal desorption system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716428A (en) * | 2009-11-19 | 2010-06-02 | 江苏惠利特环保设备有限公司 | Device for recovering oil and gas by condensation-adsorption method |
| CN102151414A (en) * | 2010-05-07 | 2011-08-17 | 中国人民解放军总后勤部油料研究所 | Device for recovering oil gas by using condensing adsorptive process and device for switching absorption and desorption |
| CN102553284A (en) * | 2012-01-12 | 2012-07-11 | 鄂州万园环保实业有限公司 | Solvent oil-gas reclaiming device |
| CN106166399A (en) * | 2016-07-29 | 2016-11-30 | 泉州市天龙环境工程有限公司 | A kind of device for recovering oil and gas and method |
-
2017
- 2017-09-14 CN CN201710853813.9A patent/CN107456839A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716428A (en) * | 2009-11-19 | 2010-06-02 | 江苏惠利特环保设备有限公司 | Device for recovering oil and gas by condensation-adsorption method |
| CN102151414A (en) * | 2010-05-07 | 2011-08-17 | 中国人民解放军总后勤部油料研究所 | Device for recovering oil gas by using condensing adsorptive process and device for switching absorption and desorption |
| CN102553284A (en) * | 2012-01-12 | 2012-07-11 | 鄂州万园环保实业有限公司 | Solvent oil-gas reclaiming device |
| CN106166399A (en) * | 2016-07-29 | 2016-11-30 | 泉州市天龙环境工程有限公司 | A kind of device for recovering oil and gas and method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310904A (en) * | 2018-03-15 | 2018-07-24 | 浙江佳力科技股份有限公司 | PID control automatically adjusts the petroleum vapor recovery unit and oil-gas recovery method of adsorptive pressure, desorption pressure |
| CN112755720A (en) * | 2019-11-06 | 2021-05-07 | 中国石油化工股份有限公司 | Gas adsorption condensation recovery method and recovery system |
| CN111471478A (en) * | 2020-04-14 | 2020-07-31 | 青岛飞普思环保科技有限公司 | Method for reducing hot spot temperature of adsorption bed in oil gas recovery process by adsorption method |
| CN111960373A (en) * | 2020-08-25 | 2020-11-20 | 优必得石油设备(苏州)有限公司 | Method and device for recycling tertiary oil gas of gas station |
| CN115501636A (en) * | 2022-10-21 | 2022-12-23 | 深圳市德捷力低温技术有限公司 | VOC condensation recovery plant |
| CN115501636B (en) * | 2022-10-21 | 2023-08-04 | 深圳市德捷力低温技术有限公司 | VOC condensation recovery equipment |
| TWI839040B (en) * | 2022-12-23 | 2024-04-11 | 華懋科技股份有限公司 | Adsorption tubular membrane oil and gas treatment thermal desorption system and method |
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