CN201016088Y - Oil vapour recycling unit - Google Patents
Oil vapour recycling unit Download PDFInfo
- Publication number
- CN201016088Y CN201016088Y CNU200720034295XU CN200720034295U CN201016088Y CN 201016088 Y CN201016088 Y CN 201016088Y CN U200720034295X U CNU200720034295X U CN U200720034295XU CN 200720034295 U CN200720034295 U CN 200720034295U CN 201016088 Y CN201016088 Y CN 201016088Y
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- CN
- China
- Prior art keywords
- oil
- air
- film
- gas
- pressure switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model provides an air-fuel recycling device, comprising a pressure switch(1), and a pressure switch(2), a membrane device(6), a motor(8) and a vacuum pump(9); furthermore, the device adds a compressor(3), a cooler(4) and an air-fuel separator(5); wherein, one end of the compressor(3) is connected with the pressure switch(1) and the pressure switch(2) through a pipeline, and the other end is connected with the cooler(4) which is connected with the air-fuel separator(5) at the back and finally communicated with the membrane device(6) through the other end of the air-fuel separator(5). Adopting the technical proposal of combining the compressing, condensing and selective infiltration, the device has the advantages of simple structure, easy maintenance and low energy consumption, thereby being applicable to the air-fuel recycling for the gas station.
Description
Technical field
The utility model belongs to a kind of device for recovering oil and gas, the device for recovering oil and gas that particularly a kind of petrol service station uses.
Background technology
A kind of oil-gas recovery processing device commonly used at present, it mainly is membrane separation device, the gas film disengagement gear is a kind of gas fractionation unit based on dissolving diffusion mechanism, because hydrocarbon molecule and air molecule varies in size in oil gas and the air mixture, infiltration rate difference in some film is very big, and membrane separation device is exactly to utilize this physical property of film to realize separating of hydrocarbon vapour and air.The propelling thrust of its separation is the partial pressure difference of each component of gas in the film both sides, and the difference of the infiltration rate when utilizing each component of gas by film carries out that gas separates.The organic steam separating film is the dissolving selectivity control, and the solubility of organic steam in film is big, and infiltration rate is fast, thereby realizes separating with micromolecular.
Though this membrane separation device is simple to operate, and is applied widely, flexible operation, easy is easy to safeguard, can not cause secondary pollution to environment.But, owing to be subjected to the restriction of molecule infiltration rate in film, as reach the oil gas recovery ability that is fit to operating needs, the necessary difference of pressure that increases film group number or increase the film front and back end.Increasing pressure reduction will cause equipment energy consumption to increase; Film and assembly need import, and cost is higher, and economy is relatively poor relatively, has increased film group number, directly causes cost of investment to increase considerably.
The utility model content
The purpose of this utility model: be to provide a kind of device that can effectively reclaim petrol service station oil gas, claimed structure, technology are simple, easy care, energy consumption are low.
For achieving the above object the technical scheme that the utility model has adopted compression, condensation method and selective permeation membrane technology to combine.
The device for recovering oil and gas that the utility model is related comprises original pressure switch, permeable membrane device, motor and vacuum pump.In addition, also increase on this basis compressor, cooling vessel and oil separator are arranged.Compressor is connected with pressure switch by pipeline, and the other end links to each other with cooling vessel, and cooling vessel then is connected with the rear end disconnector, the last and membrane separation device connection by the other end of oil separator.
By the pressure switch monitors oil pressure tank in the device, the oil gas in the oil tank reaches after certain pressure, and device for recovering oil and gas starts automatically, and the oil gas in the oil tank is pumped to this equipment.
The at first compressed machine of oil gas compresses, hydrocarbon flow after the compression is through cooling vessel, the oil gas temperature is cooled to a little higher than ambient temperature, because drop in temperature, the aerial solubility of hydrocarbon molecule reduces, and the most of gasoline in the oil gas is condensed into fluid oil and separates out, the gas-liquid mixture disconnector of flowing through, the oil gas of gaseous state continues to enter subsequent treatment, and liquid oil is stored in the disconnector bottom.
Oil gas continues the membrane treatment appts of flowing through, because different molecular infiltration rate difference in film, oil gas is separated into the pure air of high-concentration oil vapor and compliance with environmental protection requirements, and high-concentration oil vapor is sent back to oil tank, the pure air exhaust to atmosphere.
For accelerating the speed of oil gas by device, in the design of film device back segment one vacuum pump is arranged, increase the difference of pressure at film device two ends, improve the speed of membrance separation.
When tank pressure was reduced to certain value, this device quit work automatically.
The utlity model has following advantage:
1. with respect to membrane separation device,,, must increase the pressure reduction of filtration module or increase film group number, also can cause equipment energy consumption to increase for reaching the processing capacity that oil gas reclaims as simple employing membrance separation;
2. the service life of any film and processing load all are closely bound up, because the film device of this equipment only is responsible for handling the oil gas after compressing, have reduced the load of film, so increased the service life of film greatly, have reduced maintenance cost.By installing condensing apparatus additional, reduce the burden of film, can reduce the area of film so greatly, cost-cutting is for the user saves investment;
3. owing to the processing of the oil gas after the only responsible compression of the film device of this equipment,, clean more through the air behind the membrane permeation so need not to apply excessive pressure reduction to the permeable membrane group.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
The utility model embodiment has increased compression 3, condensation 4 mechanisms on former simple membrane treatment appts 6, this mechanism is made up of explosion-proof compressor 3, condenser 4, oil separator 5 and a fan, pipeline etc.Design simultaneously has the automatic guidance function, comprises pressure-regulating device.
Equipment is by pressure switch 1 monitoring tank pressure, when tank pressure be higher than+0.1 " during water column; pressure switch 1 closure; motor 9 starts; drive compressor 3 and start working; the oil gas in the compressor 3 suction oil tanks; and be compressed to more than the 15PSI, hydrocarbon flow after overdraft is cooled to ambient temperature through cooling vessel 4, because the drop in temperature of oil gas, hydrocarbon molecule solubility in air reduces, separate out condensing into liquid gasoline, after the compressed cooling, surpass 70% hydrocarbon molecule gasoline in the oil gas with liquefy.
The fluid-mixing of oil and the oil gas oil separator 5 that continues to flow through under the pressure of compressor 3, oil separator 5 is accepted the compressed gas liquid mixture that compressor 3 compression condensations come out.Liquid gasoline will accumulate in oil separator 5 bottoms, and the oil gas of high concentration will enter next step processing by oil separator 5, and oil separator 5 comprises a tapping valve.When compressor 3 is pumped oil gas, tapping valve is closed; Separate the end tapping valve and open fluid oil emptying oil return jar.
Oil gas will continue the film device 6 of flowing through, the Oil-gas Separation of being undertaken once more by film device 6 reclaims, hydrocarbon molecule will be handled the back by film device 6 and be sent back to sunken oil storage with the oil gas of higher concentration, and the isolated cleaned air that satisfies environmental demands is by blow-down pipe 7 exhaust to atmospheres.
For improving the speed of gas by film device 6, at film device 6 back segments a vacuum pump 8 is housed, increase the difference of pressure at film device 6 two ends, to improve the processing capacity of film device 6.
Work after 10 minutes, equipment stops 2 minutes automatically, and discharging valve is opened, the fluid oil discharging oil return jar that gathers in the oil separator 5.
As tank pressure still be higher than+0.1 " water column, equipment starts once more.As in operational process, pressure switch 2 monitors tank pressure and is lower than-0.5 " water column, pressure switch 2 is opened, and equipment quits work automatically.
Claims (1)
1. a device for recovering oil and gas comprises pressure switch (1), (2), film device (6), and motor (8) and vacuum pump (9) is characterized in that: this device also increases compressor (3), cooling vessel (4) and oil separator (5); Compressor (3) one ends are connected with pressure switch (1), (2) by pipeline, and the other end links to each other with cooling vessel (4); Cooling vessel (4) then is connected with rear end oil separator (5), last and membrane separation device (6) connection by oil separator (5) other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720034295XU CN201016088Y (en) | 2007-02-06 | 2007-02-06 | Oil vapour recycling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720034295XU CN201016088Y (en) | 2007-02-06 | 2007-02-06 | Oil vapour recycling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201016088Y true CN201016088Y (en) | 2008-02-06 |
Family
ID=39056568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720034295XU Ceased CN201016088Y (en) | 2007-02-06 | 2007-02-06 | Oil vapour recycling unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201016088Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767761A (en) * | 2008-12-29 | 2010-07-07 | 天津开发区贰加壹米兰环保科技有限公司 | Vehicular air pressure balancing device for recovering condensed oil-gas |
| CN105422422A (en) * | 2015-12-15 | 2016-03-23 | 意朗实业（上海）有限公司 | Novel environmentally-friendly recovering compressor for gasoline gas |
| CN107297141A (en) * | 2016-04-15 | 2017-10-27 | 中国石油化工股份有限公司 | A kind of petroleum vapor recovery handling process and complexes |
-
2007
- 2007-02-06 CN CNU200720034295XU patent/CN201016088Y/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767761A (en) * | 2008-12-29 | 2010-07-07 | 天津开发区贰加壹米兰环保科技有限公司 | Vehicular air pressure balancing device for recovering condensed oil-gas |
| CN105422422A (en) * | 2015-12-15 | 2016-03-23 | 意朗实业（上海）有限公司 | Novel environmentally-friendly recovering compressor for gasoline gas |
| CN107297141A (en) * | 2016-04-15 | 2017-10-27 | 中国石油化工股份有限公司 | A kind of petroleum vapor recovery handling process and complexes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20100415 Decision number of declaring invalidation: 14686 Granted publication date: 20080206 Decision date of declaring invalidation: 20100415 Decision number of declaring invalidation: 14666 Granted publication date: 20080206 Decision date of declaring invalidation: 20100415 Decision number of declaring invalidation: 14675 Granted publication date: 20080206 |