CN201735206U - Cooling and absorbing oil gas recovery device - Google Patents
Cooling and absorbing oil gas recovery device Download PDFInfo
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- CN201735206U CN201735206U CN201020252215XU CN201020252215U CN201735206U CN 201735206 U CN201735206 U CN 201735206U CN 201020252215X U CN201020252215X U CN 201020252215XU CN 201020252215 U CN201020252215 U CN 201020252215U CN 201735206 U CN201735206 U CN 201735206U
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Abstract
A cooling and absorbing oil gas recovery device is used for recovering oil gas discharged by gas station oil tanks. The gas outlet of an underground oil tank is connected with a pressure relief pump, the outlet of the pressure relief pump is connected with the inlet of a cooling cylinder, a liquid outlet at the lower part of the cooling cylinder is connected with a cooling coiled pipe, the cooling coiled pipe is fixed in an absorbing tank, the outlet of the cooling coiled pipe is connected with the underground oil tank, a gas outlet at the upper part of the cooling cylinder is connected with an inlet at the lower part of the absorbing tank, and a valve is arranged on a pipe arranged between the gas outlet of the cooling cylinder and the inlet of the absorbing tank. A gas outlet on the top of the absorbing tank is connected with an exhaust pipe, the inlet of the absorbing tank is connected with a vacuum pump, a valve is arranged on a pipe between the inlet of the absorbing tank and the vacuum pump, and the outlet of the vacuum pump is connected with the underground oil tank. The utility model has the benefit that an absorbent bed in the absorbing tank is cooled by the cooling coiled pipe, the high temperature hot spot problem of the absorbent bed in the absorbing process is solved, and the penetrating time of the absorbent bed is extended. The oil gas recovery rate can reach 99%, and oil gas exhaust concentration is smaller than 5g per cubic meter.
Description
Technical field
The utility model relates to oil tank oil gas recovery technology field, the oil tank device for recovering oil and gas that the particularly condensation of gas station's employing, cooling absorption combine with the vacuum desorption mode.
Background technology
At present, in existing several oil-gas recovery methods, the treatment effeciency height of absorption method satisfy the exhaust emission standard that is lower than 25mg/l easily, but absorption method is easy to generate high temperature hotspot, has bigger potential safety hazard.Be easy to generate the high temperature hotspot problem for fear of absorption method activated carbon bed, the gas station adopts the process of " condensation and absorption " usually.Oil gas is condensed to about-40 ℃ earlier, make most of oil gas liquefaction, the low temperature oil gas that does not condense adsorbs through adsorption tanks again, because absorption can reach the very high rate of recovery, concentration of emission is also low, can reach discharging standards, in addition, low temperature oil gas through condensation also can effectively prevent the adsorbent bed problem that is easy to generate high temperature hotspot, and has avoided the big problem of condensation method deep cooling energy consumption.Because of condensed low temperature oil gas only bigger to the adsorbent bed cooling effect of adsorption tanks entrance area, and very little to the adsorbent bed cooling effect of adsorption tanks exit region, the adsorption tanks exit region is adsorbent bed still to exist high temperature hotspot problem, potential safety hazard bigger.
The utility model content
The purpose of this utility model is: a kind of device for recovering oil and gas that cools off absorption is provided, adopts installing cooling endless tube in adsorption tanks, and the liquid oil product that uses condensation phase from top to bottom cools off adsorbent bed in the adsorption tanks as cooling medium.The adsorbent bed temperature rise that solves the oil gas problem of discharging when gas station's buried tank is received oil and automobile fuel filler, existing oil gas recovery technology existence is big, the problem of poor stability.
The technical solution adopted in the utility model is: the device for recovering oil and gas of cooling absorption, mainly by the release of pressure pump, cooling cylinder, adsorption tanks, the cooling endless tube, blast pipe, vavuum pump and pipeline are formed, it is characterized in that: the exhaust outlet of buried tank has pipeline to connect the release of pressure pump inlet, the release of pressure pump discharge has pipeline to connect the cooling cylinder inlet, the liquid outlet of cooling cylinder bottom has pipeline to connect the cooling endless tube, the cooling endless tube is fixed in the adsorption tanks, and the inlet of cooling endless tube is on adsorption tanks top, the outlet of cooling endless tube is in the adsorption tanks bottom, and promptly cooling off the flow direction of endless tube in adsorption tanks is from top to bottom.The outlet of cooling endless tube has pipeline to connect buried tank, can carry out heat exchange in the liquid conveying adsorption tanks in cooling cylinder, sends in the buried tank then.The gas vent on cooling cylinder top has pipeline to connect the inlet of adsorption tanks bottom, and on the pipeline between the gas vent of cooling cylinder enters the mouth to adsorption tanks valve is arranged; The gas outlet at adsorption tanks top is connected with blast pipe.There is pipeline to connect vavuum pump at the inlet of adsorption tanks, on adsorption tanks enter the mouth pipeline between the vavuum pump, valve arranged.The vacuum delivery side of pump has pipeline to connect buried tank.
Described adsorption tanks have two, are fixed with the cooling endless tube respectively in two adsorption tanks, to the pipeline between the blast pipe valve are arranged respectively at two adsorption tanks.
The operation principle of the device for recovering oil and gas of summary cooling absorption: consult Fig. 1.When underground oil tank 1 was received oil and automobile fuel filler, the oil gas of buried tank 1 discharging once cooled off adsorption process through a condensation process, a vacuum desorption process, filter out air after, turn back to buried tank again, specifically be divided into four-stage.(1) when the oil-air pressure in the underground oil tank 1 reaches setting value, the oil gas that release of pressure pump 2 begins to aspirate in the buried tank 1 enters cooling cylinder 3; (2) after oil gas enters cooling cylinder 3, in cooling cylinder 3, carry out earlier condensation, most of oil gas is condensed into the low temperature liquid oil product, the low temperature liquid oil product of condensation is introduced into adsorption tanks 4 top cooling tube inlets, to adsorbent bed from top to bottom cool off after, returning buried tank 1 by adsorption tanks 4 bottom cooling tube outlets again reclaims, the oil gas that gets off of not condensing simultaneously enters the adsorption tanks 4 that were cooled and adsorbs from the bottom to top, most hydrocarbons be attracted to adsorbent bed on, air in the oil gas enters atmosphere from blast pipe 6, and adsorption tanks 4 are generally hocket more than two or two absorption and desorption; (3) when adsorption tanks 4 adsorb saturated and do not penetrate as yet, the low temperature liquid oil product of condensation in the cooling cylinder 3 switched enter that 4 pairs of another adsorption tanks are adsorbent bed to be cooled off from top to bottom, will treat that also adsorbed oil gas switches to these adsorption tanks 4 and adsorbs from the bottom to top simultaneously; (4) adopt vavuum pump 7 to carry out desorption to the adsorption tanks 4 that adsorb oil gas, the high-concentration oil vapor that desorption comes out returns buried tank 1 and reclaims;
The beneficial effects of the utility model: the device for recovering oil and gas of the utility model cooling absorption, adopt cooling coil that adsorbent bed in the adsorption tanks cooled off from top to bottom, effectively solve adsorbent bed high temperature hotspot problem in the adsorption process, the high temperature hotspot problem on especially adsorbent bed top, reduced the potential safety hazard of adsorption process, cryogenic absorption also can increase adsorbent bed adsorbance simultaneously, prolongs adsorbent bed time of break-through.Cooling medium in the cooling coil has been reduced the energy consumption in the adsorbent cooling procedure by producing the low temperature liquid oil product in the condensation process.Oil gas recovery rate can reach 99%, and exhaust of oil concentration is less than 5g/m
3, be better than the minimum requirements of national regulation greatly, prevent that effectively the gas station from discharging oil gas in atmosphere, reduced the hidden danger of environmental pollution and fire explosion, bring tangible economic benefit and social benefit to the gas station.
Description of drawings
Fig. 1 is the device for recovering oil and gas structural representation of the utility model cooling absorption.
Among the figure, 1. buried tank, 2. release of pressure pump, 3. cooling cylinder, 4. adsorption tanks, 5. cooling endless tube, 6. blast pipe, 7. vavuum pump.
The specific embodiment
Embodiment 1: the device for recovering oil and gas with a cooling absorption is an example, and the utility model is described in further detail.
Consult Fig. 1.The device for recovering oil and gas of the utility model cooling absorption mainly is made up of release of pressure pump 2, cooling cylinder 3, adsorption tanks 4, cooling endless tube 5, blast pipe 6, vavuum pump 7 and pipeline.The exhaust outlet of buried tank 1 has pipeline to connect 2 imports of release of pressure pump, 2 outlets of release of pressure pump have pipeline to connect cooling cylinder 3 inlets, the liquid outlet of cooling cylinder 3 bottoms has pipeline to connect two cooling endless tubes 5, two cooling endless tubes 5 are separately fixed in two adsorption tanks 4, and the inlet of cooling endless tube 5 is on adsorption tanks 4 tops, the outlet of cooling endless tube 5 is in adsorption tanks 4 bottoms, and the flow direction of cooling endless tube 5 in adsorption tanks 4 is from top to bottom.The outlet of cooling endless tube 5 has pipeline to connect buried tank 1.The gas vent on cooling cylinder 3 tops has pipeline to connect the inlet of two adsorption tanks 4 bottoms, and on the pipeline between gas vent to two adsorption tanks 4 inlets of cooling cylinder 3 valve is arranged respectively; The gas outlet at two adsorption tanks 4 tops connects a blast pipe 6 simultaneously.To the pipeline between the blast pipe 6, valve is arranged respectively at two adsorption tanks 4.There is pipeline to connect vavuum pump 7 at the inlet of adsorption tanks 4, on adsorption tanks 4 enter the mouth pipeline between the vavuum pump 7, valve arranged.The outlet of vavuum pump 7 has pipeline to connect buried tank 1.
Gas station's oil gas recovery rate reaches 99%, and exhaust of oil concentration is less than 5g/m
3, far below national standard.
Claims (2)
1. device for recovering oil and gas that cools off absorption, mainly by release of pressure pump (2), cooling cylinder (3), adsorption tanks (4), cooling endless tube (5), blast pipe (6), vavuum pump (7) and pipeline are formed, it is characterized in that: the exhaust outlet of buried tank (1) has pipeline to connect release of pressure pump (2) import, release of pressure pump (2) outlet has pipeline to connect cooling cylinder (3) inlet, the liquid outlet of cooling cylinder (3) bottom has pipeline to connect cooling endless tube (5), cooling endless tube (5) is fixed in the adsorption tanks (4), and the inlet of cooling endless tube (5) is on adsorption tanks (4) top, the outlet of cooling endless tube (5) is in adsorption tanks (4) bottom, the outlet of cooling endless tube (5) has pipeline to connect buried tank (1), the gas vent on cooling cylinder (3) top has pipeline to connect the inlet of adsorption tanks (4) bottom, and on the pipeline between the gas vent of cooling cylinder (3) enters the mouth to adsorption tanks (4) valve is arranged; The gas outlet at adsorption tanks (4) top is connected with blast pipe (6), inlet at adsorption tanks (4) has pipeline to connect vavuum pump (7), on adsorption tanks (4) enter the mouth pipeline between the vavuum pump (7) valve is arranged, the outlet of vavuum pump (7) has pipeline to connect buried tank (1).
2. the device for recovering oil and gas of cooling absorption according to claim 1, it is characterized in that: described adsorption tanks (4) have two, in two adsorption tanks (4), be fixed with cooling endless tube (5) respectively, to the pipeline between the blast pipe (6), valve arranged respectively at two adsorption tanks (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020252215XU CN201735206U (en) | 2010-06-29 | 2010-06-29 | Cooling and absorbing oil gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020252215XU CN201735206U (en) | 2010-06-29 | 2010-06-29 | Cooling and absorbing oil gas recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201735206U true CN201735206U (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020252215XU Expired - Lifetime CN201735206U (en) | 2010-06-29 | 2010-06-29 | Cooling and absorbing oil gas recovery device |
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| Country | Link |
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| CN (1) | CN201735206U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407059A (en) * | 2011-12-27 | 2012-04-11 | 江苏惠利特环保科技有限公司 | Recycling device for organic gas with high boiling point |
| CN106693605A (en) * | 2017-01-26 | 2017-05-24 | 上海聚宸新能源科技有限公司 | Adsorptive regeneration device with solid-liquid phase change matters and adsorptive regeneration process |
| CN107446613A (en) * | 2016-05-31 | 2017-12-08 | 上海汤武环保科技发展有限公司 | A kind of oil gas condensation regenerative system and its application method |
| CN107469550A (en) * | 2017-08-22 | 2017-12-15 | 刘祖虎 | A kind of integrated condensing and the VOCs emission control systems and its processing method of absorption |
| CN110327733A (en) * | 2019-07-17 | 2019-10-15 | 重庆泰山电缆有限公司 | A kind of nitrogen oil-sewage separation device |
-
2010
- 2010-06-29 CN CN201020252215XU patent/CN201735206U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407059A (en) * | 2011-12-27 | 2012-04-11 | 江苏惠利特环保科技有限公司 | Recycling device for organic gas with high boiling point |
| CN107446613A (en) * | 2016-05-31 | 2017-12-08 | 上海汤武环保科技发展有限公司 | A kind of oil gas condensation regenerative system and its application method |
| CN107446613B (en) * | 2016-05-31 | 2023-03-10 | 上海汤武环保科技发展有限公司 | Oil gas condensation regeneration system and application method thereof |
| CN106693605A (en) * | 2017-01-26 | 2017-05-24 | 上海聚宸新能源科技有限公司 | Adsorptive regeneration device with solid-liquid phase change matters and adsorptive regeneration process |
| CN107469550A (en) * | 2017-08-22 | 2017-12-15 | 刘祖虎 | A kind of integrated condensing and the VOCs emission control systems and its processing method of absorption |
| CN110327733A (en) * | 2019-07-17 | 2019-10-15 | 重庆泰山电缆有限公司 | A kind of nitrogen oil-sewage separation device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |