CN201342313Y - Oil gas recovery processing device adopting membrane method for refueling station - Google Patents
Oil gas recovery processing device adopting membrane method for refueling station Download PDFInfo
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- CN201342313Y CN201342313Y CNU2008201233193U CN200820123319U CN201342313Y CN 201342313 Y CN201342313 Y CN 201342313Y CN U2008201233193 U CNU2008201233193 U CN U2008201233193U CN 200820123319 U CN200820123319 U CN 200820123319U CN 201342313 Y CN201342313 Y CN 201342313Y
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Abstract
The utility model relates to an oil gas recovery processing device adopting membrane method for a refueling station, which mainly comprises a refueling machine 1, a mainframe 2, a control box 3 and an underground oil storage tank 4, wherein the mainframe 2 includes a blower 101, a membrane component 102, a vacuum pump 103, a pipeline 104 and valves 6, 7, 8, 9, 10, 11 and 16; the outlet of the underground oil storage tank 4 is connected with the normally open valve 16 through the pipeline 104; a pressure sensor 5 is connected with the inlet of the blower 101; the outlet of the blower 101 is connected with the side of the inlet of the membrane component 102 through the valve 6; the outlet of the membrane component 102 is connected with the vacuum pump 103 through the pipeline 104 and the valve 8; and an oil gas concentration detecting instrument 15 and the one-way valve 10 are arranged on the pipeline 14 at the exhaust port of the vacuum pump 103. The oil gas recovery processing device provided by the utility model has the advantages of low oil gas discharge concentration, high oil gas processing efficiency, reliable operation, simple structure, low cost, and simple and easy use, maintenance and repair.
Description
Technical field
The utility model relates to environmental protection and field of energy-saving technology, especially a kind of gas station's oil-gas recovery processing device that is separated into the main process technology with film.
Background technology
Along with the pay attention to day by day of people to the urban air pollution problem, the oil gas of gas station, domestic big and medium-sized cities (being hydro carbons VOCs) pollution control problem also causes people's attention gradually.Practice according to American-European developed country, the exhaust of oil that generally will be referred to the gas station pollutes control (being called for short oil gas reclaims) and is divided into two stages: the phase I, (Phase I or Stage I) mainly occurred between buried tank and the oil truck, mainly realized airtight emptying by increasing measures such as oil gas reflux pipeline; Second stage (Phase II or Stage II) mainly occurs between buried tank and the motor vehicle oil tank, is that whole gas station oil gas reclaims the emphasis of improvement work and the place of difficult point.
The second stage device for recovering oil and gas mainly contains two kinds of pressure balance type (Balance type) and vacuum aided formulas (Assisttype), the latter has become universally recognized gas station main flow oil gas recovery technology at present, and significant equipment has oil gas reclaiming type nozzle and vavuum pump.According to the paving mode of the ability to work and the respective lines of vacuum generating device, vacuum aided formula second stage device for recovering oil and gas can be divided into again and disperse assimilating type and central assimilating type (or claiming centralized) two big classes, disperses the assimilating type use more at present.Distributed oil gas recovery vacuum pump is installed in every fuel charger, and the oil gas of recovery is through entering underground oil and gas recovery line and buried tank again after the vavuum pump; Centralized oil gas recovery vacuum pump is installed near the buried tank, and the oil gas of recovery is first to be passed through vavuum pump again and enter buried tank through the underground oil and gas recovery line.In vacuum aided formula second stage device for recovering oil and gas, the gas liquid ratio of nozzle (A/L) is a crucial index, and it is meant oil gas volume of collecting when refueling and the ratio that adds gasoline volume in the fuel tank simultaneously.If want the vacuum aided formula second stage device for recovering oil and gas can operate as normal, just A/L must be controlled in the reasonable range.External studies show that when A/L=1, effective rate of recovery of vacuum aided balanced type device for recovering oil and gas is 75%; Have only when A/L=1.4～1.5, effectively the rate of recovery is just greater than 95%.But A/L is excessive, will cause sucking too much air on the one hand, forms new volatilization in buried tank, also will cause the hypertonia in the buried tank on the other hand.
Reclaim halfway phenomenon at gas station's oil gas, the California, USA air quality committee (CARB) has released second stage in 2000 reinforcement oil gas reclaims (Enhanced Vapor Recovery, EVR) decree.The EVR decree can be rated as the strictest oil gas in the present world and reclaims standard, requiring must be by diagnostic device (In-Station-Diagnostics in the installation station, ISD) etc. measure is monitored in real time to the pressure of underground oil tank of gasoline station, require 30 days malleation averages in the buried tank to be no more than the 6.35mm water column, day the highest malleation is no more than the 38.1mm water column.The maximum pressure of control buried tank in vacuum aided formula second stage device for recovering oil and gas, avoid high-concentration oil vapor to pass through the emptying of P/V valve, not only can stop fresh air to enter, suppress the further volatilization of oil product in the buried tank, and the gas concentration that returns the oil depot aspect has been added to saturated level (40%～60%), and the oil gas organic efficiency also will correspondingly improve.Reach this purpose, only depend on traditional elements such as breather valve to be difficult to realize, therefore western developed country has proposed underground oil storage tank was implemented the new concept that active pressure is regulated control at present before breather valve plays a role, and corresponding technical measures is called stress management (pressuremanagement).The stress management problem of considering underground oil tank of gasoline station has its particularity, if adopt complicated flow process certainly will cause newly-built or the rising of reconstruction cost, the possibility that produces economic benefit is littler.From the buried tank stress management equipment that present American market occurs, mainly be divided into based on membrane separation technique with based on airbag technology two big classes.
Membrane separation process is to utilize hydro carbons VOCs to separate with air different realization of diffusion (being infiltration rate) in film, promptly allows " hydro carbons VOCs+ air mixture " " filtration " through film under certain pressure reduction promotes that both are separated.The difference of selection permeability according to both is divided into air and preferentially preferentially passes through type by type and oil gas.At present common organic gas diffusion barrier mostly is oil gas greatly and preferentially passes through type on the domestic and international market, its separation process mainly relies on the gas with various molecule to dissolve the difference of diffusion in film, coercibility organic vapor (as alkane, aromatic hydrocarbon, halogenated hydrocarbons etc.) is compared with inert gas (as hydrogen, nitrogen, methane etc.), permeated by preferential adsorption, thereby reach the purpose of separation.
At home, former State Environmental Protection Administration issued the atmosphere pollutants emission standards of relevant storage tank farm, oil truck, three links in gas station on June 22nd, 2007.Wherein " gas station's atmosphere pollutants emission standards " (GB20952-2007) spells out, and gas station's device for recovering oil and gas is made up of the recovery of emptying oil gas, the airtight storage of gasoline, the recovery of oiling oil gas, on-line monitoring and exhaust of oil treating apparatus.Should adopt the immersion emptying, the oil gas that the emptying device for recovering oil and gas produces during with the oil car emptying is collected by air-tight manner and to be entered in the oil truck jar, takes back oil depot then and focuses on; The oil gas that produces that refuels should adopt the airtight collection of vacuum aided mode, and the gas liquid ratio of various oiling device for recovering oil and gas should be in 1.0≤A/L≤1.2 scopes; The pressure sensitive value of rear end discharging processing device should be set in surpass+start, be lower than during 150Pa-stop during 150Pa, exhaust of oil concentration should≤25g/m
3
For the needs of holding " green Games ", in June, 2007～2008 year July, Beijing Environmental Protection Agency has carried out oil gas to 1265 in 1462 gas stations, the whole city and has reclaimed improvement, apart from 329 gas stations in the civil buildings 50m scope oil gas has been installed all and has been reclaimed after-treatment device, but key technology and equipment almost all rely on import, close down 197 gas stations during the course of the Olympic Games.It is " embrane method device for recovering oil and gas " that the oil gas of being installed reclaims after-treatment device most, has also therefore produced the misrepresentation of so-called " three times oil gas reclaims ".Aspect the research and development of membrane module, though the Dalian Chemistry and Physics Institute of the Chinese Academy of Sciences is taking the lead in having obtained at home a series of achievements aspect the research of organic vapor separation membrane and the industrial applications, but because of the gas separation is preferentially passed through the overcritical of type membrane material and filming technology to oil gas, this type of production domesticization membrane module drops into the still less of large-scale commercial applications application at present.Therefore, oil gas reclaims the almost whole dependence on import of the required oil gas reclaiming type nozzle of improvement work, embrane method device for recovering oil and gas, seals condensing unit (Vaporsaver up for safekeeping as the oil gas of U.S. OPW company and the cooperation research and development of U.S. MTR (Membrane Technology and Research) company
TM), the PERMEATOR that researches and develops of the embrane method device for recovering oil and gas VACONOVENT of German BORSIG company and the cooperation of German GKSS research center research and development, U.S. Arid Technologhies company and the cooperation of German GKSS research center
TMDeng, an embrane method device for recovering oil and gas to be installed need to be invested more than 20 ten thousand yuan, higher cost has influenced its large-scale promotion application at home.But more regrettably, actual motion shows, these embrane method device for recovering oil and gas institute discharge tail gas majorities be difficult to satisfy " exhaust of oil concentration should≤25g/m
3" the GB requirement, therefore many owners of gas station have lost confidence and aggressive property to installing the embrane method device for recovering oil and gas additional.For example, as far back as 2004, German embrane method device for recovering oil and gas has been installed by xxxx gas station, Shanghai just import, the head of a station represents " over a year; the loss on disposal inventory profit compared in the past with installation oil gas reclaimer; do not have additional income, also do not see loss, because make an inventory of goods in a warehouse according to " loss quota " in the gas station at the beginning of 2005." at the beginning of 2006 this station head of a station represent " say income, anyway be not see, but maintenance cost go down more than 20,000, really be unable to stand." this station head of a station represents " you can well imagine, every other day bad, influence my business, I have torn it open " at the beginning of 2007.
Retrieved domestic and international patent database according to technical characterstic of the present utility model, discovery has domestic patent " embrane method the device for recovering oil and gas " (patent No.: 200620168794.3) adopt membrane separation process to carry out oil gas and handle, the shortcoming of this device is not according to the method work of operation stage by stage, do not use air that membrane module is cleaned, make it and under optimum Working, to move, reduced the efficient that oil gas reclaims.
For these reasons, be necessary to propose a kind of novel gas station with embrane method oil gas recovery and treatment method and system, to overcome the deficiencies in the prior art.
Summary of the invention
According to background technology, the purpose of this utility model is to avoid above-mentioned deficiency, and the method and system of the gas station of a kind of efficient, economy, miniaturization with the recycling of embrane method oil gas is provided.
To achieve these goals, the utility model is achieved through the following technical solutions:
A kind of gas station embrane method oil-gas recovery processing device, mainly by fuel charger (1), main frame (2), control cabinet (3) and buried tank (4) are formed, wherein: air blast (101), membrane module (102), vavuum pump (103), pipeline (104) and valve (6), (7), (8), (9), (10), (11), (16) form main frame (2), the outlet of buried tank (4) is connected with vacuum valve (12) by a road of pipeline (104) and normally open valve door (16), another road connects pressure sensor (5), and be connected with the inlet of air blast (101), the outlet of air blast (101) is connected with the entrance side of membrane module (102) through valve (6), between valve (6) and membrane module (102), go up setting at pipeline (104) air leading-in conduit (13) of valve (7) is housed, the per-meate side (102A) of membrane module (102) is connected with vavuum pump (103) with valve (8) by pipeline (104), by pipeline (104) and valve (9) air leading-in conduit (14) is set therebetween, the pipeline (104) of vavuum pump (103) exhaust outlet is provided with gas concentration detector (15) and one-way cock (10).
Described membrane module (102) is made of the membrane material that air preferentially passes through, and is spiral membrane module, plate and frame module or doughnut formula membrane module.
Described vavuum pump (103) is explosion-proof type sliding-vane-type vacuum pump, explosion-proof type rotary-vane vaccum pump or other explosion-proof type power-equipment that is fit to vacuumize.
Described pressure sensor (5) is measured the gas-phase space pressure of buried tank (4), and is controlled between (150～150) Pa.
Owing to adopt technique scheme, the utlity model has following advantage and effect:
The exhaust of oil that produces when 1, the utility model can reduce the gas station and refuels to motor vehicle pollutes, and reclaims valuable petroleum resources, has reduced the danger of gas station's breaking out of fire; both saved the energy; the protection environment is beneficial to health, and the three wastes of can not regenerating.
2, the utility model adopts film to separate recovery processing technique, has reduced the volume and the cost of whole oil gas recovery and processing system, has reduced the hydrocarbon content that effluxes in the tail gas, has reduced equipment investment and operating cost.
3, membrane module of the present utility model adopts air preferentially by the type separation membrane, because most compositions are nitrogen or oxygen in the air, therefore rich nitrogen film or the oxygen permeable membrane that the employing technology is comparatively ripe also can meet the demands to a certain extent, reduced the cost of membrane module.Certainly, also can develop the special-purpose membrane module of novel air penetrated preferably type.
4, film wash phase of the present utility model can make membrane module keep good working order, has improved oil gas treatment effeciency and equipment service life.
5, the utility model can pollute the control index according to the airborne release in country variant or area, and is convenient to corresponding device thereof is expanded, and for example installs preliminary condensation equipment additional in the front of membrane module, effluxes airborne gas concentration with further reduction.
Description of drawings
Fig. 1 is existing embrane method device for recovering oil and gas schematic diagram
Fig. 2 is a conventional pressure management apparatus schematic diagram based on membrane separation technique on the market
Fig. 3 is the utility model embrane method device for recovering oil and gas principle schematic
Fig. 4 the utility model embrane method oil gas reclaims automation equipment structural entity schematic diagram
The specific embodiment
By Fig. 3 and Fig. 4 as can be known, oil-gas recovery processing device of the present utility model is mainly by fuel charger 1, main frame 2, control cabinet 3 and buried tank 4 are formed, wherein: air blast 101, membrane module 102, vavuum pump 103, pipeline 104 and valve 6,7,8,9,10,11,16 form main frame 2, the outlet of buried tank 4 is connected with vacuum valve 12 by a road of pipeline 104 and normally open valve door 16, another road connects pressure sensor 5, and be connected with the inlet of air blast 101, the outlet of air blast 101 is connected with the entrance side of membrane module 102 through valve 6, between valve 6 and membrane module 102, the air leading-in conduit 13 that valve 7 is housed is set on pipeline 104, the per-meate side 102A of membrane module 102 is connected with vavuum pump 103 with valve 8 by pipeline 104, by pipeline 104 and valve 9 air leading-in conduit 14 is set therebetween, the pipeline 104 of vavuum pump 103 exhaust outlets is provided with gas concentration detector 15 and one-way cock 10.
Other knows that membrane module 102 is made of the membrane material that air preferentially passes through, and can be spiral membrane module, plate and frame module or doughnut formula membrane module.
Vavuum pump 103 can be explosion-proof type sliding-vane-type vacuum pump, explosion-proof type rotary-vane vaccum pump or other explosion-proof type power-equipment that is fit to vacuumize.
If the ability to work of vavuum pump 103 and membrane module 102 is expanded, not only go for the less gas station of exhaust of oil absolute magnitude, also applicable to big oil and gas content polluted place such as oil depot, oil plant, thereby obtain remarkable social benefit and economic benefit.
The utility model is not only applicable to central assimilating type oil gas and reclaims occasion, reclaims occasion applicable to distributing oil gas yet, and need not to carry out fairly large structural change.
Be combined into example with distributing oil gas recovery site below and be described, oil-gas recovery processing device is a complete sledge dress sealing case structure, by fuel charger 1, and main frame 2, control cabinet 3 and buried tank 4 are formed, and main frame 2 and control cabinet 3 link to each other by cable between the two; Comprise air blast 101, vavuum pump 103, membrane module 102 in the main frame 2, measuring instrument such as equipment such as valve 6,11,8,9,7,10 and pressure transmitter 71, flow transmitter 72, temperature transmitter 73, gas concentration measuring instrument 15; Comprise components and parts such as data acquisition equipment 75, control appliance 76, guidance panel 77 in the control cabinet 3; The built-in minipump 52 of every fuel charger 1 sucks buried tank 4 with the remaining oil gas in the motor vehicle oil tank by oil gas reclaiming type nozzle.The pressure that reclaims the discharge porch when oil gas is that oil-gas space pressure buried tank 4 in is when setting value, control system by- pass valve control 6,11,8 is opened, valve 9,7 is closed, air blast 101, vavuum pump 103 start, extract the oil gas in the buried tank 4, air sees through membrane module 102 and is entered atmosphere by vavuum pump 103 extractions, and the oil gas that is separated returns buried tank 4 by oil gas return duct 19.The inlet pressure that reclaims the discharge place when oil gas is the oil-air pressure of gas-phase space buried tank 4 in during less than setting value, and it is out of service that control system is controlled air blast 101.Vavuum pump 103 continues suction, and this moment, valve 11,8,7 was opened, and valve 6,9 is closed, and after suction a period of time, vavuum pump 103 is out of service.The pressure of 71 pairs of air blast 101 porch of pressure transmitter is measured, 72 pairs of oil gas of flow transmitter reclaim the flow at discharge place and measure, 73 pairs of oil gas of temperature transmitter reclaim the temperature at discharge place and measure, and data acquisition equipment 75 is passed to control appliance 76 with these measurement data.Control appliance 76 is controlled automatically according to the parameter of setting, and data are stored, analyzed, and generates various statistical report forms, chart, and is transferred to remote computer to carry out the strange land processing of data by network.Man-machine interfaces such as setting operation button, indicator lamp, touch-screen, buzzer are used for the progress of real time monitoring oil gas recovery operation and the duty of various instrument on the guidance panel 77; Show that oil gas reclaims the real-time working data of control procedure and equipment; The fault that shows related hardware equipment in the gas recovery system for oil is carried out audible alarm and manual control and is switched; Carry out the system level operation, take different operating rights according to different personnel.
Claims (4)
1, a kind of gas station embrane method oil-gas recovery processing device, mainly by fuel charger (1), main frame (2), control cabinet (3) and buried tank (4) are formed, it is characterized in that: air blast (101), membrane module (102), vavuum pump (103), pipeline (104) and valve (6), (7), (8), (9), (10), (11), (16) form main frame (2), the outlet of buried tank (4) is connected with vacuum valve (12) by a road of pipeline (104) and normally open valve door (16), another road connects pressure sensor (5), and be connected with the inlet of air blast (101), the outlet of air blast (101) is connected with the entrance side of membrane module (102) through valve (6), between valve (6) and membrane module (102), go up setting at pipeline (104) air leading-in conduit (13) of valve (7) is housed, the per-meate side (102A) of membrane module (102) is connected with vavuum pump (103) with valve (8) by pipeline (104), by pipeline (104) and valve (9) air leading-in conduit (14) is set therebetween, the pipeline (104) of vavuum pump (103) exhaust outlet is provided with gas concentration detector (15) and one-way cock (10).
2, gas station according to claim 1 embrane method oil-gas recovery processing device is characterized in that: described membrane module (102) is made of the membrane material that air preferentially passes through, and is spiral membrane module, plate and frame module or doughnut formula membrane module.
3, gas station according to claim 2 embrane method oil-gas recovery processing device is characterized in that: described vavuum pump (103) is explosion-proof type sliding-vane-type vacuum pump, explosion-proof type rotary-vane vaccum pump or the explosion-proof type power-equipment that is fit to vacuumize.
4, gas station according to claim 2 embrane method oil-gas recovery processing device is characterized in that: described pressure sensor (5) is measured the gas-phase space pressure of buried tank (4), and is controlled between (150～150) Pa.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008201233193U CN201342313Y (en) | 2008-10-28 | 2008-10-28 | Oil gas recovery processing device adopting membrane method for refueling station |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008201233193U CN201342313Y (en) | 2008-10-28 | 2008-10-28 | Oil gas recovery processing device adopting membrane method for refueling station |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101723301A (en) * | 2008-10-28 | 2010-06-09 | 北京石油化工学院 | Oil-gas recycling treatment method and system for gas station by using membrane method |
| CN107585473A (en) * | 2017-10-18 | 2018-01-16 | 哈尔滨市科佳通用机电股份有限公司 | Rail tanker sweeps bottom method |
| CN110923002A (en) * | 2019-11-14 | 2020-03-27 | 山东鑫福测控技术有限公司 | Oil gas recovery device for gas station and method for using oil gas recovery device |
| 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 |
-
2008
- 2008-10-28 CN CNU2008201233193U patent/CN201342313Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101723301A (en) * | 2008-10-28 | 2010-06-09 | 北京石油化工学院 | Oil-gas recycling treatment method and system for gas station by using membrane method |
| CN107585473A (en) * | 2017-10-18 | 2018-01-16 | 哈尔滨市科佳通用机电股份有限公司 | Rail tanker sweeps bottom method |
| CN107585473B (en) * | 2017-10-18 | 2024-02-27 | 哈尔滨市科佳通用机电股份有限公司 | Railway oil tank truck bottom sweeping method |
| CN110923002A (en) * | 2019-11-14 | 2020-03-27 | 山东鑫福测控技术有限公司 | Oil gas recovery device for gas station and method for using oil gas recovery device |
| CN110923002B (en) * | 2019-11-14 | 2023-12-19 | 丰德博信新材料(山东)集团有限公司 | Oil gas recovery device for gas station and method for using same |
| 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091111 Termination date: 20121028 |