CN102921269A - Oil gas recycling device - Google Patents
Oil gas recycling device Download PDFInfo
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- CN102921269A CN102921269A CN2012104336648A CN201210433664A CN102921269A CN 102921269 A CN102921269 A CN 102921269A CN 2012104336648 A CN2012104336648 A CN 2012104336648A CN 201210433664 A CN201210433664 A CN 201210433664A CN 102921269 A CN102921269 A CN 102921269A
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Abstract
The invention relates to an oil gas recycling device and belongs to the technical field of environmental protection and energy conservation. The oil gas recycling device comprises an underground oil tank, an air suction pump, an adsorption tank, a vacuum pump and a condensate separation tank, and further comprises a finned tube type air-cooled condenser which is connected between the finned tube type air-cooled condenser and the condensate separation tank. According to the oil gas recycling device, a process of first adsorption and then cooling is used, a vast majority of air in the oil gas is filtered and discharged into the air after adsorption, and the refrigerating capacity of high-concentration hydrocarbon steam desorbed by condensation is greatly reduced compared with that needed by direct condensation of mixed gas of oil gas and air. The used process is that the air-cooled condenser replaces a prior refrigerating unit structure of a compressor, a condenser, an expansion valve and an evaporator, and accordingly, the manufacture cost and the operation cost of a whole cooling section are reduced greatly.
Description
Technical field
The invention belongs to environmental protection and field of energy-saving technology, especially relate to a kind of oil gas reclaiming device for gas station and method thereof.
Background technology
Owing to being very easy to volatilization, the various volatile organic matters (VOCs) such as gasoline produce very serious evaporating loss, so the gas station is easy to abrim " oil flavor ".The a large amount of evaporations of these oil gas also directly are discharged in the atmosphere, not only cause serious quantity loss and Quality Down, and have seriously polluted atmospheric environment and stayed great disaster hidden-trouble.Therefore the gas station must carry out the oil gas recovery.
Gas station oil gas reclaims and to be divided into one-level gas recovery system for oil and secondary gas recovery system for oil: method and apparatus from oil truck to gas station's tank unloading process that collect oil gas from is called the one-level gas recovery system for oil, and the oil gas of recovery is transported to oil depot or oil plant concentrates, absorption or burning disposal through oil truck; The secondary gas recovery system for oil is to be with the method and apparatus of oil gas collection in gas station's oil storage tank of volatilization in the gas station in the automobile fuel filler process.But the two-stage gas recovery system for oil is owing to the vapor liquid equilibrium of not accomplishing " to extract one liter of oil out and just refill one liter of gas " from volume, so can not effectively prevent exhaust of oil, therefore country to have formulated standard No. be the GB20592-2007 standard, force to carry out installing device for recovering oil and gas in the gas station, be so-called No. three reclaimers, and determined storage tank farm, gasoline station oil gas discharge control criterion enforcement zone and time, and exhaust of oil limit value.
At present, the separation and recovery method of oil gas and air has absorption process, absorption method, condensation method and membrane separation process etc.What be applied to the gas station mainly is condensation method, absorption method and membrane separation process, but this is several all not ideal enough aspect economic indicator and technical performance, comparatively speaking, the higher operating cost of its power is high, the partially complicated manufacturing cost of technique is higher, more can only embody its environmental benefit, economic benefit is not obvious.
Summary of the invention
For the defective that the above-mentioned background technology exists, the technical problem to be solved in the present invention provides that a kind of exhaust of oil is up to standard, easy operating, lower-cost device for recovering oil and gas and method.
For solving the problems of the technologies described above, the present invention is achieved by the following technical programs:
A kind of device for recovering oil and gas, comprise buried tank, air inducing pump, adsorption tanks, vavuum pump, condensate liquid knockout drum, described device for recovering oil and gas comprises the fin tube type air-cooled condenser, and described fin tube type air-cooled condenser is connected between described vavuum pump and the condensate liquid knockout drum.
Use the oil-gas recovery method of said apparatus, comprising:
(1) when the pressure of underground oil tank reached setting value, the bleed pump was started working, and the oil gas in the suction buried tank enters adsorption tanks;
(2) oil gas enters adsorption tanks, utilizes in the adsorption tanks adsorbent to the effect of the affinity of hydrocarbon molecule, and with oil gas and air separation, gas discharging directly into atmosphere up to standard when adsorption tanks adsorb when saturated, utilizes vavuum pump that the saturated adsorption tank is carried out the vacuum desorption regenerative operation;
(3) desorption high concentration of hydrocarbon steam out enters the fin tube type air-cooled condenser, and in the fin tube type air-cooled condenser, the hydrocarbon vapor portion is cooled into liquid state and enters in the condensate liquid knockout drum, and all the other high concentrations of gas return buried tank.
The technique of rear cooling is adsorbed first in utilization of the present invention, because after absorption, most air in the oil gas enter atmosphere after filtration, the high concentration of hydrocarbon vapor phase of condensation solution sucking-off has substantial degradation than the refrigerating capacity that direct condensed oil-gas air Mixture needs, the technique that we adopt is the structure that directly replaces former compressor, condenser, expansion valve, the such refrigeration unit of evaporimeter with an air-cooled condenser, and the manufacturing cost of whole like this cooling section and operating cost have greatly reduction.
Further improve as the present invention, described adsorption tanks are the adsorption tanks of two alternations.For absorbing process, adsorption process and desorption process can not carry out simultaneously in the same adsorption tanks, and the adsorbance of adsorption tanks is limited, must carry out desorption process when absorption is saturated, will exceed standard otherwise discharge tail gas.Adopt the technique of two adsorption tanks, when an adsorption tanks absorption was saturated, device can automatically switch to another adsorption tanks to be continued absorption and starts simultaneously vavuum pump the saturated adsorption tank is carried out regenerative operation.The adsorption/desorption assurance device can continually move thereby such two adsorption tanks just can hocket.
Description of drawings
Accompanying drawing is device for recovering oil and gas schematic diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is made and to further specify.
Whole oil-gas recovery method can be divided into: oil gas collection → adsorption filtration → cooling is reclaimed.Be specially three phases:
(1) when the pressure of underground oil tank 1 reached setting value, bleed pump 2 was started working, and the oil gas in the suction buried tank 1 enters adsorption tanks 3 or 4;
(2) oil gas enters adsorption tanks 3 or 4, utilize the interior adsorbent of adsorption tanks to the effect of the affinity of hydrocarbon molecule, with oil gas and air separation, gas after the adsorption treatment is emptying front through sample tap 5 sample examinations, gas up to standard is by evacuated tube 6 discharging directly into atmosphere, when one of them adsorption tanks adsorbs when saturated, utilize 7 pairs of saturated adsorption tanks of vavuum pump to carry out the vacuum desorption regenerative operation;
(3) the high concentration of hydrocarbon steam that desorbs enters fin tube type air-cooled condenser 8, and in fin tube type air-cooled condenser 8, the hydrocarbon vapor portion is cooled into liquid state and enters in the condensate liquid knockout drum 9, and all the other high concentrations of gas return buried tank 1.
With respect to traditional condensation method, membrane separation process and absorption method, adopt the advantage of this technique to be:
(1) adsorption tanks of two alternations of employing, when adsorption tanks adsorb when saturated, can automatically switch to another adsorption tanks and continue absorption, thereby assurance device can 24 hours incessantly operation, thereby having avoided single adsorption tanks to adsorb must shutting down when saturated carries out the desorb operation otherwise discharging situation not up to standard;
(2) adopt the mode of cooling off afterwards of adsorbing first, the process for cooling section is used for processing the high concentration of hydrocarbon steam of separating sucking-off, thereby greatly reduced the refrigerating capacity that direct condensation needs, thereby cooling section does not re-use the structure of traditional compressor, condenser, choke valve, evaporimeter, and directly adopt the mode of an air-cooled condenser, greatly saved manufacturing cost and operating cost;
(3) adopt the major path saw tooth fin, defrosting time is shortened to original 1/3, adopt displacement evaporation fin, heat exchange efficiency has improved 30% in the situation of equal volume condenser size;
(4) oil gas recovery rate can reach 98%, and concentration of oil and gas discharged is less than 5g/m
3, be better than the discharge standard of national regulation;
(5) process structure is simple, easy operating, and cost is lower, and operate power about 1KW, is the part of other group technologies only only, has obvious economic benefit and social benefit.
The description of above embodiment is comparatively concrete, detailed; but can not therefore be interpreted as the restriction to this patent scope; should be noted that; for the person of ordinary skill of the art; without departing from the inventive concept of the premise; can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (2)
1. device for recovering oil and gas, comprise buried tank, air inducing pump, adsorption tanks, vavuum pump, condensate liquid knockout drum, it is characterized in that: described device for recovering oil and gas comprises the fin tube type air-cooled condenser, and described fin tube type air-cooled condenser is connected between described vavuum pump and the condensate liquid knockout drum.
2. device for recovering oil and gas according to claim 1, it is characterized in that: described adsorption tanks are the adsorption tanks of two alternations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104336648A CN102921269A (en) | 2012-11-02 | 2012-11-02 | Oil gas recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104336648A CN102921269A (en) | 2012-11-02 | 2012-11-02 | Oil gas recycling device |
Publications (1)
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|---|---|
| CN102921269A true CN102921269A (en) | 2013-02-13 |
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| CN2012104336648A Pending CN102921269A (en) | 2012-11-02 | 2012-11-02 | Oil gas recycling device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103550947A (en) * | 2013-10-18 | 2014-02-05 | 范秀文 | Multi-stage low-temperature condensation type oil gas recovery device and using method thereof |
| CN106742888A (en) * | 2016-12-15 | 2017-05-31 | 安徽科海压缩机制造有限公司 | The shallow cold recovery device of the supercharging of volatile organic steam in a kind of oil gas |
| CN107054922A (en) * | 2017-03-31 | 2017-08-18 | 海湾环境科技（北京）股份有限公司 | Gas recovery system for oil |
| CN108499304A (en) * | 2018-05-03 | 2018-09-07 | 江苏润宇环境工程有限公司 | Petroleum vapor recovery cleaning device |
| TWI802029B (en) * | 2021-10-01 | 2023-05-11 | 華懋科技股份有限公司 | Hollow fiber tubular membrane oil and gas recovery system with condenser and method thereof |
| TWI833118B (en) * | 2021-10-01 | 2024-02-21 | 華懋科技股份有限公司 | Hollow fiber tubular membrane oil and gas treatment system with condenser and method thereof |
Citations (6)
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| GB902400A (en) * | 1958-12-18 | 1962-08-01 | Happel Gmbh | Improvements in air cooled condensers |
| DE29617141U1 (en) * | 1996-09-24 | 1997-01-23 | Peter W. D. van der Heijden, Laborbedarf, 32694 Dörentrup | Dryer with steam conditioning |
| CN1334313A (en) * | 2000-07-13 | 2002-02-06 | 张国瑞 | Adsorption-absorption process for recovering oil gas |
| CN201132098Y (en) * | 2007-09-30 | 2008-10-15 | 无锡市华峰气体分离设备有限公司 | Air separating and adsorbing system |
| CN201643932U (en) * | 2010-01-22 | 2010-11-24 | 西安联合超滤净化设备有限公司 | Device for separating heavy hydrocarbon in mixed gas |
| CN202909604U (en) * | 2012-11-02 | 2013-05-01 | 江苏航天惠利特环保科技有限公司 | Oil vapor recovery device |
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2012
- 2012-11-02 CN CN2012104336648A patent/CN102921269A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB902400A (en) * | 1958-12-18 | 1962-08-01 | Happel Gmbh | Improvements in air cooled condensers |
| DE29617141U1 (en) * | 1996-09-24 | 1997-01-23 | Peter W. D. van der Heijden, Laborbedarf, 32694 Dörentrup | Dryer with steam conditioning |
| CN1334313A (en) * | 2000-07-13 | 2002-02-06 | 张国瑞 | Adsorption-absorption process for recovering oil gas |
| CN201132098Y (en) * | 2007-09-30 | 2008-10-15 | 无锡市华峰气体分离设备有限公司 | Air separating and adsorbing system |
| CN201643932U (en) * | 2010-01-22 | 2010-11-24 | 西安联合超滤净化设备有限公司 | Device for separating heavy hydrocarbon in mixed gas |
| CN202909604U (en) * | 2012-11-02 | 2013-05-01 | 江苏航天惠利特环保科技有限公司 | Oil vapor recovery device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103550947A (en) * | 2013-10-18 | 2014-02-05 | 范秀文 | Multi-stage low-temperature condensation type oil gas recovery device and using method thereof |
| CN106742888A (en) * | 2016-12-15 | 2017-05-31 | 安徽科海压缩机制造有限公司 | The shallow cold recovery device of the supercharging of volatile organic steam in a kind of oil gas |
| CN107054922A (en) * | 2017-03-31 | 2017-08-18 | 海湾环境科技（北京）股份有限公司 | Gas recovery system for oil |
| CN108499304A (en) * | 2018-05-03 | 2018-09-07 | 江苏润宇环境工程有限公司 | Petroleum vapor recovery cleaning device |
| TWI802029B (en) * | 2021-10-01 | 2023-05-11 | 華懋科技股份有限公司 | Hollow fiber tubular membrane oil and gas recovery system with condenser and method thereof |
| TWI833118B (en) * | 2021-10-01 | 2024-02-21 | 華懋科技股份有限公司 | Hollow fiber tubular membrane oil and gas treatment system with condenser and method thereof |
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Application publication date: 20130213 |