CN206837798U - Gas recovery system for oil - Google Patents
Gas recovery system for oil Download PDFInfo
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- CN206837798U CN206837798U CN201720479319.6U CN201720479319U CN206837798U CN 206837798 U CN206837798 U CN 206837798U CN 201720479319 U CN201720479319 U CN 201720479319U CN 206837798 U CN206837798 U CN 206837798U
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Abstract
A kind of gas recovery system for oil is disclosed, it includes absorption system, and absorption system includes again：Absorption tower and regenerator, the first pipeline, the second pipeline and the 3rd pipeline.First pipeline is connected to absorption tower, and the second pipeline, the 3rd pipeline are all connected between regenerator and absorption tower.First pipeline provides oil gas and is input to absorption tower, regenerator provides absorbent, absorbent is inputted to absorption tower by the second pipeline, and regenerator is back to by the 3rd pipeline after the completion of being interacted with oil gas, and the absorbent of backflow is separated into the absorbent of regeneration and the oil gas of recovery by regenerator.According to gas recovery system for oil of the present utility model, absorption system is provided with regenerator, the absorbent that the completion of backflow absorbs is separated into the absorbent of regeneration and the oil gas of recovery by it, realize recycling for absorbent, so that gas recovery system for oil remains to continuously run in the case where lacking absorbent, while save process costs.
Description
Technical field
It the utility model is related to oil gas and utilize field, more particularly, to a kind of gas recovery system for oil.
Background technology
Oil product is due to containing substantial amounts of light hydrocarbon component, having very strong volatility, during storage, transfer etc., unavoidably
The volatilization of oil gas can occur.Oil gas volatilization not only results in a large amount of losses of oil product, while the oil gas volatilized also can be to environment
Pollute.With the continuous implementation of global range energy-saving emission reduction strategy, the control of oil product volatilization seems ever more important.So
And fundamentally to control oil product volatilization also relatively difficult to achieve at present, Investigation of Petroleum Vapor Recovery Technology is used as can be by oil gas collection and again sharp
Technology, become more practical.
Existing oil-gas recovery method is mainly absorption process, absorption method, condensation method and membrane separation process etc..Wherein absorbing
In method, it usually needs substantial amounts of special absorptive agent is provided so that process costs are very high, in the case where not possessing special absorptive agent
It can not continue to realize petroleum vapor recovery.The energy consumption of other oil-gas recovery methods such as condensation method is higher, fault rate is higher, stability
Difference, and system is more complicated.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of gas recovery system for oil, is realized using regenerator
Recycling for absorbent, reduces process costs.
According to a kind of gas recovery system for oil provided by the utility model, including absorption system, the absorption system includes：Inhale
Receive tower and regenerator；First pipeline, it is connected to the absorption tower；And second pipeline and the 3rd pipeline, be all connected to it is described again
Between raw tower and the absorption tower；First pipeline provides the oil gas and is input to the absorption tower, the regeneration
Tower provides absorbent, and the absorbent is inputted to the absorption tower by second pipeline, interacted with the oil gas
The regenerator is back to by the 3rd pipeline after into absorption, the absorbent of backflow is separated into again by the regenerator
The raw absorbent and the oil gas of recovery.
Preferably, first pipeline is provided with the first compressor.
Preferably, first compressor is liquid rotary compressor, and the absorption system also includes：Ring liquid pipeline, is connected to
Between second pipeline and first compressor, the part of the absorbent is inputted to described by the ring liquid pipeline
One compressor is to also serve as ring liquid.
Preferably, the regenerator is rectifying column, by the absorbent rectifying to backflow, is separated into regeneration
The absorbent and the oil gas of recovery.
Preferably, the absorption tower is packed tower, and the filler in the packed tower is structured packing or random packing.
Preferably, in the absorption tower, the absorbent is to the oil gas counter-current absorption.
Preferably, the absorbent is gasoline or diesel oil.
Preferably, the oil gas is forced into 0.3 to 0.4 MPa by first compressor.
Preferably, in addition to adsorption system, the adsorption system include：Adsorption tower；4th pipeline, it is connected to the absorption
Between the absorption tower of system and the adsorption tower；And the 5th pipeline, it is connected on the adsorption tower, is completed in the absorption tower
The oil gas absorbed is adsorbed by the 4th pipeline into the adsorption tower, and the oil gas for completing absorption passes through institute
State the discharge of the 5th pipeline.
Preferably, the adsorption system also includes：6th pipeline, it is connected to the institute of the adsorption tower and the absorption system
Between stating the first pipeline, the adsorption tower includes adsorbed state and desorption state, under the adsorbed state, at the adsorption tower
In the first predetermined pressure, the adsorption tower adsorbs to the oil gas in it, and the oil gas for completing to adsorb passes through described
5th pipeline is discharged, and after the adsorption tower adsorption saturation, is changed into the desorption state, under the desorption state, the suction
Attached tower pressure release, the oil gas desorb in the adsorption tower, and the oil gas of desorption enters described the by the 6th pipeline
One pipeline, after the adsorption tower pressure release to the second predetermined pressure, it is changed into the adsorbed state.
Preferably, first predetermined pressure is higher than normal pressure, and second predetermined pressure is less than normal pressure.
Preferably, include on the 6th pipeline：Vavuum pump；Inlet valve and outlet valve, respectively positioned at the vacuum
The upstream and downstream of pump；And cross-line pipeline, between connection and the upstream of the inlet valve and the downstream of the outlet valve,
The cross-line pipeline is provided with cross-line valve, and the desorption state of the adsorption tower includes the first sub- desorption state and second again
Sub- desorption state, wherein after the adsorption tower adsorption saturation, it is changed into the described first sub- desorption state, is inhaled in first subsolution
Under state, the inlet valve and the outlet valve are closed, and the cross-line valve is opened so that the adsorption tower is from described the
The gradual pressure release of one predetermined pressure after pressure release to normal pressure, is changed into the described second sub- desorption state, in second subsolution to normal pressure
Under suction state, the cross-line valve is closed, and the inlet valve and the outlet valve are opened, and the vavuum pump is to the absorption
Tower pressure release, after the adsorption tower pressure release to second predetermined pressure, it is changed into the adsorbed state.
Preferably, the adsorption tower is in parallel two, one of them within the same time, in two adsorption towers
In the adsorbed state, another is in the desorption state.
Preferably, the adsorption tower includes first layer and the second layer, and the first layer loads not respectively with the second layer
Same adsorbent.
Preferably, the 5th pipeline is provided with counterbalance valve.
Preferably, in addition to compressibility, the compressibility include：Storage tank；7th pipeline, being connected to described absorb is
Between the regenerator and the storage tank of system；And second compressor, on the 7th pipeline, returned in the regenerator
The oil gas received is stored to the storage tank after second compressor compresses on the 7th pipeline.
According to gas recovery system for oil of the present utility model, including absorption system, wherein absorption system sets regenerator, and it will
The absorbent for completing to absorb and flow back is separated into the absorbent of regeneration and the oil gas of recovery, realizes recycling for absorbent, makes
Obtain gas recovery system for oil to remain to continuously run in the case where lacking absorbent, while save process costs.
The first compressor can be provided with first pipeline, first compressor can be liquid rotary compressor, and absorption system is also
Including ring liquid pipeline, the part of absorbent is inputted to the first compressor by the ring liquid pipeline so that the part of absorbent is also
Also serve as ring liquid.Absorbent, the ring liquid of compressor can be the liquid hydrocarbons of gasoline, diesel oil or similar oil-gas component, make
The working solution for obtaining gas recovery system for oil is easy to draw materials, and the cost of production further reduces.
Absorption tower can be packed tower, and the filler in it is structured packing or random packing, when filler is structured packing,
Absorption efficiency is higher；Absorbent in absorption tower can also improve absorption efficiency to oil gas counter-current absorption.
Gas recovery system for oil can also include adsorption system, by the Combined Treatment for absorbing and adsorbing, finally from the 5th pipe
The content that the oil gas of the completion absorption of road discharge can reach NMHC is less than 50mg/m3, substantially reduce to environment
Pollution.
Adsorption system can also include the 6th pipeline being connected between adsorption tower and the first pipeline of absorption system, absorption
Tower can include adsorbed state and desorption state, and under desorption state, oil gas desorbs in adsorption tower, and the oil gas of desorption leads to successively
Cross the 6th pipeline, the first pipeline enters absorption tower, realize the secondary recovery to oil gas.
In a preferred embodiment, adsorption tower is in parallel two, and both alternately adsorb and desorbed, in the same time
Interior, one of them in two adsorption towers is in adsorbed state, and another is in desorption state so that gas recovery system for oil includes
Absorption-absorbing process line can continuously run, the efficiency of petroleum vapor recovery is also improved.
Counterbalance valve can be provided with 5th pipeline of adsorption system, for ensureing that adsorption tower is at suitable work pressure
Under power.
Gas recovery system for oil can also include compressibility, and the oil gas reclaimed in regenerator is managed by the 7th of compressibility
Stored after the second compressor compresses on road to storage tank, the convenient storage and transport for reclaiming oil gas, meanwhile, oil gas is as volatility
Organic compound, the utility model are realized VOC stock product technology.
Brief description of the drawings
By the description to the utility model embodiment referring to the drawings, of the present utility model above-mentioned and other mesh
, feature and advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the schematic diagram of the gas recovery system for oil according to the utility model embodiment.
Embodiment
The utility model is more fully described hereinafter with reference to accompanying drawing.For the sake of clarity, the various pieces in accompanying drawing do not have
Have drawn to scale.Furthermore, it is possible to some known parts are not shown.It describe hereinafter of the present utility model many specific
Details, but just as the skilled person will understand, this can not be realized according to these specific details
Utility model.
It should be appreciated that when describing the structure of part, it is referred to as when by a floor, a region positioned at another floor, another area
When domain " above " or " top ", can refer to above another layer, another region, or its with another layer, it is another
Other layers or region are also included between individual region.Also, if by part turnover, this layer, a region will be located at it is another
Layer, another region " following " or " lower section ".
Fig. 1 shows the schematic diagram of the gas recovery system for oil according to the utility model embodiment.The gas recovery system for oil includes
Absorption system 100, absorption system 100 include again：Absorption tower 110 and regenerator 120, the first pipeline 130, the second pipeline 140 with
And the 3rd pipeline 150.
First pipeline 130 is connected to absorption tower 110, and oil gas A1 to be recycled can pass through the first pipeline 110 and enter absorption
Tower 110.
Second pipeline 140 is connected between regenerator 120 and absorption tower 110, and the 3rd pipeline 150 is connected to absorption tower 110
Between regenerator 120.
First pipeline 110 provides oil gas A1 to be recycled and is input to absorption tower 110, and regenerator provides absorbent
B1, absorbent B1 are inputted to absorption tower 110 by the second pipeline 140, complete to inhale with the oil gas interaction in absorption tower 110
Receiving, obtain completing the absorbent B2 absorbed, the absorbent B2 for completing to absorb is back to regenerator 120 by the 3rd pipeline 150, then
The absorbent B2 that the completion of backflow absorbs is separated into the absorbent of regeneration and the oil gas A2 of recovery, the absorption of regeneration by raw tower 120
Agent may continue as absorbent B1 and be inputted by the second pipeline 140 to the completion of absorption tower 110 absorption task.
According to gas recovery system for oil of the present utility model, absorption system 100 is provided with regenerator 120, and it is by the complete of backflow
Absorbent B2 into absorption is separated into the absorbent B1 of regeneration and the oil gas A2 of recovery, realizes recycling for absorbent so that
Gas recovery system for oil remains to continuously run in the case where lacking absorbent, while saves process costs.
Absorbent can be the liquid hydrocarbon of gasoline, diesel oil or similar oil-gas component.
Further, the first pipeline 130 is provided with the first compressor 131, and the first compressor can be by oil gas to be recycled
A1 is sent into absorption tower 110 after being forced into 0.3 to 0.4 MPa.First compressor 131 can be liquid rotary compressor, and it is being transported
Need to provide ring liquid during row, ring liquid can be the liquid hydrocarbon of gasoline, diesel oil or similar oil-gas component.Preferably, inhale
Receipts system 100 can also include ring liquid pipeline 160, and it is connected between the second pipeline 140 and the first compressor 131, absorbent
B1 part can be inputted to the first compressor 131 by ring liquid pipeline 160 to also serve as ring liquid.
In the present embodiment, the ring liquid of absorbent and the first compressor can be same medium, by using ring liquid pipeline
160, it can will partially absorb agent and be used as ring liquid so that the working solution of gas recovery system for oil is easy to draw materials, and the cost of production enters one
Step reduces.In addition, after the completion of ring liquid use, can be fed directly in absorption tower 110, because itself and absorbent are same media,
It can equally be back in regenerator 120 and be regenerated, turn into the absorbent of regeneration.The utility model enters absorbent and ring liquid
Row Two-way Cycle utilizes, and more economizes on resources and cost.
In the present embodiment, the second pipeline 140 is connected to the top on absorption tower 110, and the 3rd pipeline 150 is all connected to absorption tower
110 bottom so that in absorption tower 110, absorbent can improve absorption efficiency to oil gas counter-current absorption.
On second pipeline 140, from regenerator 120 to the first pump 141, the first valve can be set gradually between absorption tower 110
Door 142 and refrigerating plant 143.
On 3rd pipeline 150, from absorption tower 110 to the second pump 151 and the second valve can be set gradually between regenerator 120
Door 152.
Regenerator 120 can be rectifying column, by the absorbent B2 rectifying to backflow, be separated into the absorbent of regeneration
The B1 and oil gas A2 of recovery.
Absorption tower 110 can be packed tower, and the filler in packed tower is structured packing or random packing.Wherein filler is preferred
For regular stainless steel helices, the absorption efficiency on absorption tower 110 can be effectively improved than random packing using structured packing.
According to the gas recovery system for oil of this hair utility model embodiment, adsorption system 200 can also be included.Change adsorption system
200 include：Adsorption tower 210, the 4th pipeline 220 and the 5th pipeline 230.4th pipeline 210 is connected to the suction of absorption system 100
Receive between tower 110 and adsorption tower 210, the 5th pipeline 230 is connected on adsorption tower 210.
The oil gas A3 for completing to absorb in absorption tower 110 is adsorbed by the 4th pipeline 220 into adsorption tower 210, is completed
The oil gas A4 of absorption is discharged by the 5th pipeline 230.
5th pipeline 230 can be provided with counterbalance valve 231 above, for ensureing that adsorption tower 210 is at suitable work pressure
Under power, such as ensure that adsorption tower 210 is under 0.3 MPa of operating pressure.
Further, adsorption system 200 can also include the 6th pipeline 240, and it is connected to adsorption tower 210 and absorption system
Between 100 the first pipeline 130.
Adsorption tower 210 can include adsorbed state and desorption state.
Under adsorbed state, adsorption tower 210 is in the first predetermined pressure, and adsorption tower 210 adsorbs to the oil gas in it,
The oil gas A4 for completing absorption is discharged by the 5th pipeline 230, after the adsorption saturation of adsorption tower 210, is changed into desorption state.
Under desorption state, the pressure release of adsorption tower 210, oil gas desorbs in adsorption tower 210, and the oil gas A5 of desorption passes through the 6th
Pipeline 240 enters the first pipeline 130, after the pressure release of adsorption tower 210 to the second predetermined pressure, is changed into adsorbed state.
In continuous production, the circulating repetition of adsorption tower 210 enters adsorbed state and desorption state.Preferably, above-mentioned
One predetermined pressure is higher than normal pressure, e.g. 0.3 MPa, and the second predetermined pressure can be less than normal pressure, and e.g. vacuum reaches 96
KPa.
It can include on 6th pipeline 240：First vavuum pump 243, inlet valve 244 and outlet valve 245 and cross-line
Pipeline 246, the first vavuum pump 243 are located between the pipeline 130 of adsorption tower 210 and first, and inlet valve 144 is located at vavuum pump 143
Upstream, outlet valve 145 is located at the downstream of vavuum pump 143.Cross-line pipeline 246 connects the upstream and outlet with inlet valve 144
Between the downstream of valve 145, cross-line pipeline 246 is provided with cross-line valve 247.
The desorption state of adsorption tower 210 includes the first sub- desorption state and the second sub- desorption state, wherein adsorption tower 210 again
After adsorption saturation, it is changed into the first sub- desorption state.
Under the first sub- desorption state, inlet valve 244 and outlet valve 245 are closed, and cross-line valve 247 is opened so that
Adsorption tower 210 is from the gradual pressure release of the first predetermined pressure to normal pressure, after pressure release to normal pressure, is changed into the second sub- desorption state.
Under the second sub- desorption state, cross-line valve 247 is closed, and inlet valve 244 and outlet valve 245 are opened, and first
Vavuum pump 243 after the pressure release of adsorption tower 210 to the second predetermined pressure, is changed into adsorbed state to the pressure release of adsorption tower 210.
Further, adsorption tower can be in parallel two, adsorption tower 210 and the ＇ phases of adsorption tower 210 in basic embodiment
Mutually in parallel, the two alternately adsorbs and desorbed, i.e., within the same time, one of them in two adsorption towers is in adsorption-like
State, then another be in desorption state.
Specifically, the 4th pipeline 220 can include tie point and the second branch road, and wherein tie point is connected to adsorption tower
210, the 3rd valve 221 is set thereon；Second branch road is connected to the ＇ of adsorption tower 210, sets the 3rd valve 222 thereon.
6th pipeline 240 can also include the 3rd branch road and the 4th branch road, wherein the 3rd branch road is connected to adsorption tower 210,
5th valve 241 is set thereon；4th branch road is connected to the ＇ of adsorption tower 210, sets the 4th valve 242 thereon.
Adsorption tower 210 can be adsorbed alternately with the ＇ of adsorption tower 210, and the alternate cycle is, for example, 12 minutes.For example,
First in 12 minutes, adsorption tower 210 is in adsorbed state, then the ＇ of adsorption tower 210 is in desorption state.Now, the 3rd valve
221 are opened, and the 4th valve 222 is closed, and the 5th valve 241 is closed, and the 6th valve 242 is opened.Oil gas A3 enters into adsorption tower 210
Row absorption, the oil gas A4 for completing absorption discharge from the 5th pipeline 230；Cross-line pipeline 246 on 6th pipeline 240 and the simultaneously
One vavuum pump 243 carries out pressure release to the ＇ of adsorption tower 210, and the oil gas A5 desorbed in the ＇ of adsorption tower 210 enters the by the 6th pipeline 240
Under the first sub- desorption state that one pipeline 130, wherein desorption state include and under the second sub- desorption state on the 6th pipeline 240
Inlet valve 244, outlet valve 245, the opening and closing mode of cross-line valve 247 and the first vavuum pump 243 the method for operation above
It is already described, then this be not described in detail.
Then, at second in 12 minutes, the ＇ of adsorption tower 210 is in adsorbed state, and adsorption tower 210 is in desorption state.This
When, the 3rd valve 221 is closed, and the 4th valve 222 is opened, and the 5th valve 241 is opened, and the 6th valve 242 is closed.Oil gas A3 enters
The ＇ of adsorption tower 210 is adsorbed, and the oil gas A4 for completing absorption discharges from the 5th pipeline 230；Cross-line on 6th pipeline 240 simultaneously
The vavuum pump 243 of pipeline 246 and first carries out pressure release to adsorption tower 210, and the oil gas A5 desorbed in adsorption tower 210 is by the 6th pipe
Road 240 is into the first pipeline 130, under the first sub- desorption state that wherein desorption state includes and the 6th under the second sub- desorption state
The fortune of inlet valve 244, outlet valve 245, the opening and closing mode of cross-line valve 247 and the first vavuum pump 243 on pipeline 240
Line mode is already described above, then this be not described in detail.It is understood that what the adsorption tower 210 and ＇ of adsorption tower 210 was alternately adsorbed
Cycle is not limited to 12 minutes, is simply illustrated herein exemplified by 12 minutes.
According to the gas recovery system for oil of the utility model embodiment, by the processing of absorption system 100, the clearance of oil gas
70-80% can be reached；And pass through the Combined Treatment of absorption system 100 and adsorption system 200, finally from the row of the 5th pipeline 230
The content that the oil gas A4 of the completion absorption gone out can reach NMHC is less than 50mg/m3, substantially reduce the dirt to environment
Dye.
The adsorption tower of adsorption system 200 can include adsorbed state and desorption state, and under desorption state, oil gas is adsorbing
Desorbed in tower, the oil gas A5 of desorption passes sequentially through the 6th pipeline 240, the first pipeline 130 into absorption tower 110, realizes to oil gas
Secondary recovery.
In addition, the adsorption tower of the present embodiment is in parallel two, both alternately adsorb and desorbed, in the same time
Interior, one of them in two adsorption towers is in adsorbed state, and another is in desorption state so that gas recovery system for oil includes
Absorption-absorbing process line can continuously run, the efficiency of petroleum vapor recovery is also improved.
Adsorption tower 210 and the ＇ of adsorption tower 210 are, for example, activated carbon adsorbing tower with molecular sieve, and the structure of the two can be with identical, to inhale
Illustrate exemplified by attached tower 210, it is preferable that it can be layered, including first layer 211 and the second layer 212, wherein first layer 211 and
Load different adsorbents for two layer 212 respectively, separated between first layer 211 and the second layer 212 by the dividing plate 213 of setting.The
The adsorbent of primary attachment part C3 (30%) and more than C4 light hydrocarbon component can be loaded for one layer 211, the second layer 212 can be filled out
Dress absorption C2 and remaining C3 light hydrocarbon components adsorbent, dividing plate is, for example, the sieve plate in 3mm apertures.
According to the gas recovery system for oil of this hair utility model embodiment, compressibility 300 can also be included, it can be wrapped
Include：Storage tank 310, the 7th pipeline 320 and the second compressor 330.7th pipeline 320 is connected to the regenerator of absorption system 100
Between 120 and storage tank 310, the second compressor 330 is located on the 7th pipeline 320, and the 7th pipeline 320 can set the second vavuum pump
321, for the oil gas A2 of recovery in regenerator 120 to be extracted out, the oil gas A2 of recovery is by the 7th pipeline 320 in regenerator
Stored after the compression of second compressor 330 to storage tank 310, the convenient storage and transport for reclaiming oil gas.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
According to embodiment of the present utility model as described above, these embodiments do not have all details of detailed descriptionthe,
Also it is only described specific embodiment not limit the utility model.Obviously, as described above, many modification and change can be made
Change.This specification is chosen and specifically describes these embodiments, is to preferably explain that principle of the present utility model and reality should
With so that skilled artisan can repairing using the utility model and on the basis of the utility model well
Change use.The utility model is only limited by claims and its four corner and equivalent.
Claims (16)
1. a kind of gas recovery system for oil, it is characterised in that including absorption system, the absorption system includes：
Absorption tower and regenerator；
First pipeline, it is connected to the absorption tower；And
Second pipeline and the 3rd pipeline, are all connected between the regenerator and the absorption tower；
First pipeline provides the oil gas and is input to the absorption tower, and the regenerator provides absorbent, described
Absorbent is inputted to the absorption tower by second pipeline, is interacted with the oil gas after completing to absorb by described the
Three pipelines are back to the regenerator, and the absorbent of backflow is separated into the absorbent of regeneration and returned by the regenerator
The oil gas received.
2. gas recovery system for oil according to claim 1, it is characterised in that first pipeline is provided with the first compression
Machine.
3. gas recovery system for oil according to claim 2, it is characterised in that first compressor is liquid rotary compressor,
The absorption system also includes：
Ring liquid pipeline, it is connected between second pipeline and first compressor, described in the part process of the absorbent
Ring liquid pipeline is inputted to first compressor to also serve as ring liquid.
4. gas recovery system for oil according to claim 1, it is characterised in that the regenerator is rectifying column, by returning
The absorbent rectifying of stream, it is separated into the absorbent of regeneration and the oil gas of recovery.
5. gas recovery system for oil according to claim 1, it is characterised in that the absorption tower is packed tower, the filler
Filler in tower is structured packing or random packing.
6. gas recovery system for oil according to claim 1, it is characterised in that in the absorption tower, the absorbent is to institute
State oil gas counter-current absorption.
7. gas recovery system for oil according to claim 1, it is characterised in that the absorbent is gasoline or diesel oil.
8. gas recovery system for oil according to claim 2, it is characterised in that first compressor pressurizes the oil gas
To 0.3 to 0.4 MPa.
9. gas recovery system for oil according to claim 1, it is characterised in that also including adsorption system, the adsorption system
Including：
Adsorption tower；
4th pipeline, it is connected between the absorption tower of the absorption system and the adsorption tower；And
5th pipeline, it is connected on the adsorption tower,
The oil gas for completing to absorb in the absorption tower is adsorbed by the 4th pipeline into the adsorption tower, is completed
The oil gas of absorption is discharged by the 5th pipeline.
10. gas recovery system for oil according to claim 9, it is characterised in that the adsorption system also includes：
6th pipeline, it is connected between the adsorption tower and first pipeline of the absorption system,
The adsorption tower includes adsorbed state and desorption state,
Under the adsorbed state, the adsorption tower is in the first predetermined pressure, and the adsorption tower enters to the oil gas in it
Row absorption, the oil gas for completing absorption is discharged by the 5th pipeline, after the adsorption tower adsorption saturation, is changed into described
Desorption state,
Under the desorption state, the adsorption tower pressure release, the oil gas desorbs in the adsorption tower, the oil gas of desorption
First pipeline is entered by the 6th pipeline, after the adsorption tower pressure release to the second predetermined pressure, is changed into the suction
Attached state.
11. gas recovery system for oil according to claim 10, it is characterised in that first predetermined pressure is higher than normal pressure,
Second predetermined pressure is less than normal pressure.
12. gas recovery system for oil according to claim 11, it is characterised in that include on the 6th pipeline：
Vavuum pump；
Inlet valve and outlet valve, respectively positioned at the upstream and downstream of the vavuum pump；And
Cross-line pipeline, between connection and the upstream of the inlet valve and the downstream of the outlet valve, on the cross-line pipeline
Provided with cross-line valve,
The desorption state of the adsorption tower includes the first sub- desorption state and the second sub- desorption state again, wherein the absorption
After tower adsorption saturation, it is changed into the described first sub- desorption state,
Under the described first sub- desorption state, the inlet valve and the outlet valve are closed, and the cross-line valve is opened, and is made
The adsorption tower is obtained from the gradual pressure release of the first predetermined pressure to normal pressure, after pressure release to normal pressure, is changed into second subsolution
Suction state,
Under the described second sub- desorption state, the cross-line valve is closed, and the inlet valve and the outlet valve are opened, institute
Vavuum pump is stated to the adsorption tower pressure release, after the adsorption tower pressure release to second predetermined pressure, is changed into the adsorption-like
State.
13. gas recovery system for oil according to claim 10, it is characterised in that the adsorption tower is in parallel two,
In the same time, one of them in two adsorption towers is in the adsorbed state, and another is in the desorption state.
14. gas recovery system for oil according to claim 9, it is characterised in that the adsorption tower includes first layer and second
Layer, the first layer load different adsorbents respectively from the second layer.
15. gas recovery system for oil according to claim 9, it is characterised in that the 5th pipeline is provided with counterbalance valve.
16. gas recovery system for oil according to claim 1, it is characterised in that also including compressibility, the compressibility
Including：
Storage tank；
7th pipeline, it is connected between the regenerator of the absorption system and the storage tank；And
Second compressor, on the 7th pipeline,
In the regenerator oil gas of recovery stored after second compressor compresses on the 7th pipeline to
The storage tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720479319.6U CN206837798U (en) | 2017-05-03 | 2017-05-03 | Gas recovery system for oil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720479319.6U CN206837798U (en) | 2017-05-03 | 2017-05-03 | Gas recovery system for oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051125A (en) * | 2017-05-03 | 2017-08-18 | 海湾环境科技（北京）股份有限公司 | Gas recovery system for oil |
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2017
- 2017-05-03 CN CN201720479319.6U patent/CN206837798U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051125A (en) * | 2017-05-03 | 2017-08-18 | 海湾环境科技（北京）股份有限公司 | Gas recovery system for oil |
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