CN206837787U - Gas recovery system for oil - Google Patents
Gas recovery system for oil Download PDFInfo
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- CN206837787U CN206837787U CN201720569473.2U CN201720569473U CN206837787U CN 206837787 U CN206837787 U CN 206837787U CN 201720569473 U CN201720569473 U CN 201720569473U CN 206837787 U CN206837787 U CN 206837787U
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Abstract
A kind of gas recovery system for oil is disclosed, gas recovery system for oil includes oil storage tank；Adsorbent equipment, connected with the oil storage tank, start to adsorb when reaching the first predetermined pressure for the pressure in the oil storage tank, at least one rear stopping absorption in following condition is reached, the condition includes：Adsorbent equipment absorption oil and gas content reaches predetermined oil and gas content, the pressure in the oil storage tank is less than the second predetermined pressure；And desorption apparatus, it is connected between the adsorbent equipment and the oil storage tank, for being desorbed the oil gas in the adsorbent equipment and being recycled to the oil storage tank.Adsorbent equipment is used to adsorbing and stopping absorption at different conditions, and it is desorbed using desorption apparatus in predefined conditions, by carrying out time-sharing multiplex to same adsorbent equipment, realize that the oil-gas component in the gaseous mixture to oil storage tank discharge reclaims, system architecture is more simplified compared with the technology of existing multiple adsorbent equipment alternate runs, saves equipment investment.
Description
Technical field
Investigation of Petroleum Vapor Recovery Technology field is the utility model is related to, 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 Technology for Gas Station is generally divided into three phases：Petroleum vapor recovery, secondary oil gas recovery and
Petroleum vapor recovery three times.Wherein, a petroleum vapor recovery refers to oil truck to during oil storage tank emptying, the increase of oil storage pressure tank, produces
Petroleum vapor recovery to oil truck；During secondary oil gas recovery refers to automobile fuel filler, petroleum vapor recovery caused by automotive oil tank to oil storage
Tank；After petroleum vapor recovery refers to the increase of oil storage tank atmospheric pressure three times, by returning for the oil-gas component in the gaseous mixture of oil storage tank discharge
Receive.
The early stage oil storage tank of gas station is provided with breather valve, and when oil storage pressure tank is high, breather valve is opened, oil gas meeting three times
Air is directly discharged, environment had not only been polluted but also had wasted the energy.The existing device for petroleum vapor recovery three times is generally basede on condensation, inhaled
Receive, absorption, UF membrane the methods of, have that equipment investment is big, operating cost is high, service life is short, organic efficiency in various degree
Low problem.
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, passes through single adsorption tanks
Realize the recovery of the oil-gas component in the gaseous mixture of oil storage tank discharge.
According to a kind of gas recovery system for oil provided by the utility model, including：Oil storage tank；Adsorbent equipment, with the oil storage
Tank connects, and starts to adsorb when reaching the first predetermined pressure for the pressure in the oil storage tank, in following condition is reached
Stop absorption after at least one, the condition includes：The adsorbent equipment absorption oil and gas content reaches predetermined oil and gas content, the oil storage
Pressure in tank is less than the second predetermined pressure；And desorption apparatus, it is connected between the adsorbent equipment and the oil storage tank, uses
Oil gas in by the adsorbent equipment is desorbed and is recycled to the oil storage tank.
Preferably, the adsorbent equipment includes：Adsorption tanks, connected with the oil storage tank, filling absorption in the adsorption tanks
Agent；And first valve and the second valve, inlet end and the outlet side of the adsorption tanks are separately positioned on, the adsorption tanks start
First valve described in when first valve described in during absorption and second valve opening, the adsorption tanks stop absorption and described the
Two valves are closed.
Preferably, the predetermined oil and gas content is 0.85 to 0.95 times of saturated extent of adsorption of the adsorbent equipment.
Preferably, the desorption apparatus is vavuum pump, and the vavuum pump is opened in desorption, adsorbed in the adsorbent equipment
When close.
Preferably, in addition to the water cooler that is connected between the desorption apparatus and the oil storage tank, for by desorption
The oil gas liquefaction.
Preferably, in addition to the aeration tube in the oil storage tank, the aeration tube are connected with the vavuum pump, are desorbed
The oil gas be recycled to the oil storage tank by the aeration tube.
Preferably, in addition to the breather valve that is arranged on the oil storage tank, reach for the pressure in the oil storage tank
It is vented during three predetermined pressures.
Preferably, in addition to the pressure sensor that is arranged on the oil storage tank, for detecting the pressure in the oil storage tank
Power.
Preferably, first predetermined pressure is 200 pas, and second predetermined pressure is 100 pas.
According to gas recovery system for oil of the present utility model, adsorbent equipment is used to adsorb at different conditions and stops inhaling
It is attached, and it is desorbed using desorption apparatus in predefined conditions, by carrying out time-sharing multiplex, realization pair to same adsorbent equipment
Oil-gas component recovery in the gaseous mixture of oil storage tank discharge, the system knot compared with the technology of existing multiple adsorbent equipment alternate runs
Structure is more simplified, and saves equipment investment.
In a preferred embodiment, predetermined oil and gas content is 0.85 to 0.95 times of saturated extent of adsorption of adsorbent equipment, so as to
The adsorption and desorption time can be accurately controlled, equipment operating efficiency is improved, reduces operating cost.
In a preferred embodiment, gas recovery system for oil also includes the water cooler and aeration tube concatenated with vavuum pump, exposes
Tracheae is located in oil storage tank.Water cooler liquefies the oil-gas component of desorption, and oil-gas component is dispersed in oil storage tank by aeration tube
In, so as to improve the liquefied fraction of reclaimed oil gas, additional income, reduce operating cost.
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 structural representation of the gas recovery system for oil according to the utility model embodiment；
Fig. 2 shows the sectional view of the oil storage tank of the gas recovery system for oil according to the utility model embodiment；
Fig. 3 shows the flow chart of the control method 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 structural representation of the gas recovery system for oil according to the utility model embodiment, the gas recovery system for oil
Including oil storage tank 110, adsorbent equipment 120 and desorption apparatus, adsorbent equipment 120 connects with oil storage tank 110, in oil storage tank
Pressure in 110 starts to adsorb when reaching the first predetermined pressure, at least one rear stopping absorption in following condition is reached, institute
The condition of stating includes：Adsorbent equipment 120 adsorbs oil and gas content, and to reach predetermined oil and gas content, the pressure in oil storage tank 110 predetermined less than second
Pressure.Desorption apparatus is connected between the adsorbent equipment 120 and oil storage tank 110, for the oil gas in adsorbent equipment 120 to be desorbed
And it is recycled to oil storage tank 110.
Adsorbent equipment 120 can include：Adsorption tanks 121, the first valve 122 and the second valve 123.Adsorption tanks 121 with
Oil storage tank 110 connects, filling adsorbent, e.g. acticarbon in adsorption tanks 121.First valve 122 and the second valve
122 are separately positioned on the inlet end of adsorption tanks 121 and outlet side, and adsorption tanks 121 start the first valve 122 and the second valve during absorption
Door 123 is opened, and the first valve 122 and the second valve 123 are closed when adsorption tanks 121 stop absorption.First valve 122 and second
Valve 122 is, for example, control valve.
Above-mentioned predetermined oil and gas content can be 0.85 to 0.95 times of the saturated extent of adsorption of adsorbent equipment 120, e.g. inhale
0.9 times of the attached saturated extent of adsorption of tank 121.First predetermined pressure can be 200 pas, and the second predetermined pressure can be 100 pas.Exist
In the present embodiment, the pressure in oil storage tank 110 starts to adsorb when reaching 200 pa, and adsorption tanks 121 adsorb oil and gas content and reach 0.9 times
Adsorption tanks 121 saturated extent of adsorption and/or oil storage tank 110 in pressure stop absorption when being less than 100 pa, and in adsorption tanks
Start to be desorbed during the saturated extent of adsorption for the adsorption tanks 121 that 121 absorption oil and gas contents reach 0.9 times.By to desorption trigger condition with
The multiple of the saturated extent of adsorption of adsorbent equipment 120 is associated, and can accurately control the adsorption and desorption time, improves equipment operating efficiency, drop
Low operating cost.
Desorption apparatus can be vavuum pump 130, and the present embodiment intermediate pump 130 is connected to adsorption tanks 121 and oil storage tank 110
Between, and vavuum pump 130 is connected to the downstream of the first valve 122.Vavuum pump 130 is opened in desorption, in adsorbent equipment 120
Closed during absorption.
In absorption phase, the first valve 122 and the second valve 183 are switched on, and oil storage tank 110 includes the mixing of oil-gas component
Gas enters adsorption tanks 121 by the first valve 122, and the oil-gas component in gaseous mixture is attached on the adsorbent in adsorption tanks 121,
Other non-oil-gas components can be emitted into air by the second valve 183, wherein the end in second 183 connecting leg roads of valve can
To set the first releasing cap 191.When stopping absorption, the first valve 122 and the second valve 183 are all closed.In desorption stage, first
The valve 183 of valve 122 and second is still closed, and vavuum pump 130 is opened, the oil gas group of attachment on the sorbent in adsorption tanks 121
Divide under the vacuum action of vavuum pump 130 and be desorbed, form high-concentration oil vapor, and by being connected to adsorption tanks 121 and oil storage tank
Pipeline between 110 is recycled in oil storage tank 110.After desorption stage terminates, vavuum pump 130 is out of service.
Gas recovery system for oil can also include the water cooler 140 being connected between desorption apparatus 120 and oil storage tank 110, this
Water cooler 140 concatenates with vavuum pump 130 in embodiment, for the oil-gas component of desorption to be liquefied.Gas recovery system for oil can be with
Including the aeration tube 150 in oil storage tank 110, aeration tube 150 is connected with vavuum pump 130, and the oil gas of desorption passes through aeration tube
150 are recycled to oil storage tank 110.In the present embodiment, adsorption tanks 121, vavuum pump 130, water cooler 140 and aeration tube 150 are successively
Concatenation, Fig. 2 show the sectional view of the oil storage tank 110 of the gas recovery system for oil of the utility model embodiment, and aeration tube 150 can be
Bottom in oil storage tank 110 is centrally located.In desorption stage, vavuum pump 130 runs the oil gas desorption caused in adsorption tanks 121,
Oil gas is at least partly liquefied by water cooler 140, then the loose structure by being set on aeration tube 150 is sprayed into oil storage tank 110
In interior fluid oil so that the oil gas of recovery is dispersed in the oil product in oil storage tank 110, so as to improve reclaimed oil gas
Liquefied fraction, additional income, reduce operating cost.
Gas recovery system for oil can also include the breather valve 160 being arranged on oil storage tank 110, in oil storage tank 110
Pressure be vented when reaching three predetermined pressures, the 3rd predetermined pressure is, for example, 300 pas, the end in 160 connecting leg roads of breather valve
End can set the second releasing cap 192, and when pressure reaches 300 pa in oil storage tank 110, breather valve 160 is opened lets out so as to be vented
Pressure, ensure the pressure balance in oil storage tank 110.The pressure that gas recovery system for oil can also include being arranged on oil storage tank 110 passes
Sensor 170, for detecting the pressure in oil storage tank 110.
According to gas recovery system for oil of the present utility model, adsorbent equipment 120 is used to adsorb and stop at different conditions
Absorption, and it is desorbed using desorption apparatus in predefined conditions, by carrying out time-sharing multiplex to same adsorbent equipment 120,
Realize that the oil-gas component in the gaseous mixture discharged to oil storage tank 110 reclaims, the technology with existing multiple adsorbent equipment alternate runs
More simplified compared to system architecture, save equipment investment.
This also provides a kind of control method of above-mentioned gas recovery system for oil to the utility model, generally comprises following steps：
Adsorbent equipment is controlled to start to adsorb when pressure in oil storage tank reaches the first predetermined pressure；At least one in following condition is reached
The control adsorbent equipment stops absorption, and the control desorption dress after adsorbent equipment absorption oil and gas content reaches predetermined oil and gas content after individual
Put and be desorbed, the condition includes：Adsorbent equipment absorption oil and gas content reaches predetermined oil and gas content, the pressure in oil storage tank less than the
Two predetermined pressures.
Above-mentioned predetermined oil and gas content can be 0.85 to 0.95 times of the saturated extent of adsorption of adsorbent equipment.Adsorption tanks absorption oil
Tolerance can be determined by below equation：
Wherein, QAbsorption：The adsorbent equipment absorption oil and gas content within N number of absorption period；
Tn1：The initial time of n-th absorption period；
Tn2：The finish time of n-th absorption period；
C1：Predetermined constant；
P(t)：Pressure in the oil storage tank.
Fig. 3 shows the flow chart of the control method of the gas recovery system for oil according to the utility model embodiment.
Activation system and standby in step s 201, subsequently enters step S202, judges whether the pressure in oil storage tank reaches
To the first predetermined pressure, the first predetermined pressure is, for example, 200 pas, if not up to the first predetermined pressure, continues standby and continues
Step S202 is carried out to be judged, goes directly when the pressure in oil storage tank reaches the first predetermined pressure, into step S203, opens
Begin to adsorb.In adsorption process, while step S204 is carried out, calculate adsorbent equipment absorption oil and gas content, subsequently into step S205,
By adsorbent equipment absorption oil and gas content QAbsorptionCompared with the predetermined oil and gas content, predetermined oil and gas content is, for example, 0.9 in the present embodiment
The saturated extent of adsorption Q of adsorbent equipment againSaturationIf oil storage tank absorption oil and gas content QAbsorptionReach the saturation of 0.9 times of adsorbent equipment
Adsorbance QSaturation, into step S208, that is, stop absorption, then carry out step S209, that is, carry out desorption, after the completion of desorption,
System returns to holding state, goes successively to step S202 and is judged；If adsorbent equipment absorption oil and gas content QAbsorptionNot up to 0.9
The saturated extent of adsorption Q of adsorbent equipment againSaturation, into step S206, that is, judge whether the pressure in oil storage tank is predetermined less than second
Pressure, second predetermined pressure are, for example, 100 pas.If the pressure in oil storage tank is not less than the second predetermined pressure, step is returned to
Rapid S204, continue to calculate adsorbent equipment absorption oil and gas content；If the pressure in oil storage tank is less than the second predetermined pressure, enter step
Rapid S207, stop absorption, and enter holding state, go successively to step S202 and judged.
According to the control method of gas recovery system for oil of the present utility model, control adsorbent equipment adsorb at different conditions with
And stop absorption, and it is desorbed using desorption apparatus in predefined conditions, answered by carrying out timesharing to same adsorbent equipment
With, realize to oil storage tank discharge gaseous mixture in oil-gas component reclaim, the technology with existing multiple adsorbent equipment alternate runs
More simplified compared to system architecture, save equipment investment.
In addition, the control method of the gas recovery system for oil of the utility model embodiment, which discloses, judges what desorption was carried out
Opportunity and the computational methods for adsorbing oil and gas content, wherein predetermined oil and gas content is the 0.85 to 0.95 of the saturated extent of adsorption of adsorbent equipment
Times, adsorbent equipment absorption oil and gas content is determined by above-mentioned formula, so as to accurately control the adsorption and desorption time, improves equipment fortune
Line efficiency, reduce operating cost.
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 (9)
- A kind of 1. gas recovery system for oil, it is characterised in that including：Oil storage tank；Adsorbent equipment, connect with the oil storage tank, start when reaching the first predetermined pressure for the pressure in the oil storage tank Absorption, at least one rear stopping absorption in following condition is reached, the condition include：The adsorbent equipment adsorbs oil and gas content Reach predetermined oil and gas content, the pressure in the oil storage tank is less than the second predetermined pressure；AndDesorption apparatus, it is connected between the adsorbent equipment and the oil storage tank, for the oil gas in the adsorbent equipment to be taken off It is attached and be recycled to the oil storage tank.
- 2. gas recovery system for oil according to claim 1, it is characterised in that the adsorbent equipment includes：Adsorption tanks, connected with the oil storage tank, filling adsorbent in the adsorption tanks；AndFirst valve and the second valve, are separately positioned on inlet end and the outlet side of the adsorption tanks, and the adsorption tanks start to inhale First valve described in when attached and second valve opening, the first valve and described second described in when the adsorption tanks stop adsorbing Valve is closed.
- 3. gas recovery system for oil according to claim 1, it is characterised in that the predetermined oil and gas content is the adsorbent equipment 0.85 to 0.95 times of saturated extent of adsorption.
- 4. gas recovery system for oil according to claim 1, it is characterised in that the desorption apparatus is vavuum pump, described true Empty pump is opened in desorption, is closed when the adsorbent equipment adsorbs.
- 5. gas recovery system for oil according to claim 1, it is characterised in that also include being connected to the desorption apparatus and institute The water cooler between oil storage tank is stated, for the oil gas of desorption to be liquefied.
- 6. gas recovery system for oil according to claim 1, it is characterised in that also include the aeration in the oil storage tank Pipe, the aeration tube are connected with vavuum pump, and the oil gas of desorption is recycled to the oil storage tank by the aeration tube.
- 7. gas recovery system for oil according to claim 1, it is characterised in that also include being arranged on exhaling on the oil storage tank Valve is inhaled, is vented when reaching three predetermined pressures for the pressure in the oil storage tank.
- 8. gas recovery system for oil according to claim 1, it is characterised in that also include being arranged on the oil storage tank Pressure sensor, for detecting the pressure in the oil storage tank.
- 9. gas recovery system for oil according to claim 1, it is characterised in that first predetermined pressure is 200 pas, described Second predetermined pressure is 100 pas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720569473.2U CN206837787U (en) | 2017-05-19 | 2017-05-19 | Gas recovery system for oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720569473.2U CN206837787U (en) | 2017-05-19 | 2017-05-19 | Gas recovery system for oil |
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| CN206837787U true CN206837787U (en) | 2018-01-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107413168A (en) * | 2017-05-19 | 2017-12-01 | 海湾环境科技（北京）股份有限公司 | Gas recovery system for oil and its control method |
-
2017
- 2017-05-19 CN CN201720569473.2U patent/CN206837787U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107413168A (en) * | 2017-05-19 | 2017-12-01 | 海湾环境科技（北京）股份有限公司 | Gas recovery system for oil and its control method |
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