CN101244344A - Low-temperature condensing vapour recovery unit - Google Patents
Low-temperature condensing vapour recovery unit Download PDFInfo
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- CN101244344A CN101244344A CNA2008100505443A CN200810050544A CN101244344A CN 101244344 A CN101244344 A CN 101244344A CN A2008100505443 A CNA2008100505443 A CN A2008100505443A CN 200810050544 A CN200810050544 A CN 200810050544A CN 101244344 A CN101244344 A CN 101244344A
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Abstract
The invention relates to a cooled oil gas recovery apparatus under low temperature, which is characterized in that a valve is connected with an inlet pipe of an oil-gas separator; the upper outlet of the oil-gas separator is connected with an inlet of a condenser; the lower outlet is connected with a main recovery tank; the outlet of the condenser is connected with the main recovery tank; the outlet of the condenser is connected with the inlet of a low-temperature tower through a bend pipeline; the upper outlet of the low-temperature tower is connected with the inlet of an active carbon absorber; the outlet of the active carbon absorber is connected with a discharge pipeline through a blower; the lower outlet of the low-temperature tower is connected with the main recovery tank through a valve; an oil-gas mixing pump is connected with a pipeline parallel connected with the inlet pipeline of the oil-gas separator; an oil absorbing pump is connected with the pipeline parallel connected with the pipeline connecting the outlet of the condenser and the main recovery tank; a flame arrester and a nitrogen pipeline are respectively connected with a discharge pipeline; the nitrogen pipeline is connected with the inlet of the active carbon absorber. The cooled oil gas recovery apparatus has the advantages of low cost, stable operation, convenient repair, exhaust gas emission within the prescribed standard, and environmental protective effect.
Description
Technical field
The present invention relates to separator, is a kind of low-temperature condensing vapour recovery unit.
Background technology
Light-end products such as gasoline are in production, storage, transportation, sale and use, because be subjected to the vapour-liquid phase volume variation of temperature, air pressure, splendid attire oil product container and the influence of other factor to understand some oil gas volatilization, the oil gas of volatilization directly escapes into atmosphere and causes oil and gas loss.This not only brings economic loss, and pollutes to atmospheric environment, and running into thunderstorm weather still has the quick-fried danger of sudden strain of a muscle, exists potential safety hazard.
Existing oil gas reclaims the following three kinds of forms that mainly contain: a kind of is the membrane separation device that membrane separation process adopts, because the restriction of oil gas molecule infiltration rate in film, as the oil gas that reaches suitable instructions for use reclaims ability, must increase the pressure differential of film group number or increase film front and back end, increase film group number and can increase cost, increase pressure reduction and will cause equipment energy consumption to increase; Another kind is the absorbent charcoal adsorber that active carbon adsorption adopts, active carbon is short service life, and operation is frequent, and the recovery scale is limited by absorption, desorb, particularly change greatly or in the vicissitudinous operating mode of flow at gas concentration, deficiencies such as the low or load of efficient is excessive often appear in this device; Another is the condensing unit that condensation method adopts, and independent condensing unit exists unreasonable structure, and floor space is big, the high deficiency of cost.The shortcoming that exists separately in three kinds of forms in sum, any one isolated system all is difficult to reach China's " storage tank farm atmosphere pollutants emission standards " (GB20950-2007) will carry out exhaust of oil control and reclaim storage tank farm (containing oil plant hair oil platform), and exhaust of oil concentration is no more than 25g/m
3, the oil gas treatment effeciency is not less than 95% regulation requirement.
Summary of the invention
The objective of the invention is to adopt based on the prestage condensing unit, with rearmounted level absorbent charcoal adsorber is auxilliary, both are passed through the organic connection of associated devices, creationaryly provide a kind of cost low, stable, easy to maintenance, the tail gas qualified discharge, be beneficial to the low-temperature condensing vapour recovery unit of environmental protection.
The objective of the invention is to realize: a kind of low-temperature condensing vapour recovery unit by following technical proposals, it is characterized in that: it comprises gs-oil separator 1, on the entrance pipe of gs-oil separator 1, be connected with first valve 13, the upper outlet of gs-oil separator 1 is connected with condenser 2 inlets by pipeline, the following outlet of gs-oil separator 1 is connected with main recycling can 3 by second valve 14 that connects on the pipeline, the outlet of condenser 2 is connected with main recycling can 3 by pipeline, the outlet of condenser 2 is connected with the inlet of cryogenic columns 4 by the bend pipe road, the upper outlet of cryogenic columns 4 is connected with active carbon adsorber 5 inlets by the 3rd valve 21 that connects on the pipeline, the outlet of active carbon adsorber 5 is connected with discharge pipe 24 by the absorber blower fan 6 that connects on the pipeline, and the following outlet of cryogenic columns 4 is connected with main recycling can 3 by the 4th valve 19 that connects on the pipeline.Entrance pipe at described gs-oil separator 1 is connected with fuel-air mixture pump 9 mutually and on the pipeline that connects.The pipeline that connects at the outlet of described condenser 2 and main recycling can 3 mutually and be connected with oil scavenge pump 10 on the pipeline that connects.The pipeline that connects in the upper outlet of described cryogenic columns 4 and 6 outlets of absorber blower fan mutually and be connected with the 5th valve 23 on the pipeline that connects.On the discharge pipe 24 that described absorber blower fan 6 connects, be connected with spark arrester 7.On described absorber blower fan 6 and discharge pipe 24 that spark arrester 7 is connected, be connected with nitrogen pipeline 25.Described nitrogen pipeline 25 is connected with active carbon adsorber 5 inlets by the 8th valve 22 that connects on the pipeline.The following outlet of described cryogenic columns 4 is connected with a pair recycling can 8 by the 6th valve 18 that connects on the bend pipe road.Described pair of recycling can 8 is connected with the discharge pipe 24 of spark arrester 7 inlets by the 7th valve 20 that connects on the pipeline.
The beneficial effect of a kind of low-temperature condensing vapour recovery unit of the present invention is embodied in:
1. owing to adopted the prestage cryogenic condensation device that constitutes based on gs-oil separator, condenser and cryogenic columns, with rearmounted level absorbent charcoal adsorber is auxilliary, and with both organic integral body that is connected to, can effectively work in coordination with the performance centrifugation, oil gas recovery rate reaches more than 99.9%, and exhaust of oil concentration is no more than 25g/m
3, can satisfy " storage tank farm atmosphere pollutants emission standards " regulation requirement (GB20950-2007), the tail gas qualified discharge, be beneficial to environmental protection;
2. owing to adopt the following outlet of gs-oil separator to be connected with main recycling can, can realize that C6, C7 separate recovery and enter in the main recycling can with C8 by the control of second valve by second valve that connects on the pipeline;
3. owing to adopt the outlet of condenser to be connected with main recycling can, can realize that the C5 that separates recovery enters in the main recycling can by pipeline;
4. owing to the entrance pipe at gs-oil separator is connected with the fuel-air mixture pump mutually and on the pipeline that connects, when the inlet pressure of gs-oil separator or flow do not reach setting value, enter gs-oil separator by opening fuel-air mixture pump suction fuel-air mixture, can guarantee operational efficiency;
5. owing to reclaim tank connected pipeline and be connected with oil scavenge pump mutually and on the pipeline that connects with main in the outlet of condenser, when the outlet pressure of condenser or flow do not reach setting value, aspirate oil by the unlatching oil scavenge pump and enter main recycling can, can guarantee operational efficiency;
6. because mutually and be connected with the 5th valve on the pipeline that connects at the pipeline of the upper outlet of described cryogenic columns and absorber blower fan outlet connection, and on the upper outlet of cryogenic columns and active carbon adsorber entrance pipe, be connected with the 3rd valve, help the maintenance of active carbon adsorber and change active carbon;
7. owing on the discharge pipe that the absorber blower fan connects, be connected with spark arrester, on absorber blower fan and discharge pipe that spark arrester is connected, be connected with nitrogen pipeline, when abnormal conditions appear in device, also can realize the resistance fire extinguishing by spark arrester and nitrogen, eliminated potential safety hazard;
8. because nitrogen pipeline enters the mouth with active carbon adsorber by the 8th valve that connects on the pipeline is connected, can realize purging, be beneficial to the regeneration of active carbon, improve active carbon service life active carbon in the active carbon adsorber;
9. because the following outlet of cryogenic columns is connected with main recycling can, is connected with a pair recycling can by the 6th valve that connects on the bend pipe road by the 4th valve that connects on the pipeline respectively, can close another valve by one of them valve of selection unlatching the C4 and the C3 that reclaim by the cryogenic columns separation are selectively entered in master or pair recycling can;
10. advantages such as this device can be realized continuously or discontinuous operation according to actual needs, and it is low, stable, easy to maintenance to have a cost, and floor space is little.
Description of drawings
Fig. 1 is a kind of low-temperature condensing vapour recovery unit structural representation of the present invention.
Among the figure: 1 gs-oil separator, 2 condensers, 3 main recycling cans, 4 cryogenic columns, 5 active carbon adsorbers, 6 absorber blower fans, 7 spark arresters, 8 pairs of recycling cans, 9 fuel-air mixture pumps, 10 oil scavenge pumps, 11 condenser cool cycles water inlets, 12 condenser cool cycles water outs, 13 first valves, 14 second valves, 15 main recycling can discharging valves, 16 main recycling can fuel outlet valves, 17 pairs of recycling can fuel outlet valves, 18 the 6th valves, 19 the 4th valves, 20 the 7th valves, 21 the 3rd valves, 22 the 8th valves, 23 the 5th valves, 24 discharge pipes, 25 nitrogen pipeline.
The specific embodiment
Utilize drawings and Examples that a kind of low-temperature condensing vapour recovery unit of the present invention is described further below.
With reference to Fig. 1, a kind of low-temperature condensing vapour recovery unit mainly comprises devices such as gs-oil separator 1, condenser 2, main recycling can 3, cryogenic columns 4 and active carbon adsorber 5.On the entrance pipe of gs-oil separator 1, be connected with first valve 13, the upper outlet of gs-oil separator 1 is connected with condenser 2 inlets by pipeline, the following outlet of gs-oil separator 1 is connected with main recycling can 3 by second valve 14 that connects on the pipeline, the outlet of condenser 2 is connected with main recycling can 3 by pipeline, condenser 2 has cool cycles water inlet 11 and outlet 12, the outlet of condenser 2 is connected with the inlet of cryogenic columns 4 by the bend pipe road, the upper outlet of cryogenic columns 4 is connected with active carbon adsorber 5 inlets by the 3rd valve 21 that connects on the pipeline, the outlet of active carbon adsorber 5 is connected with discharge pipe 24 by the absorber blower fan 6 that connects on the pipeline, and the following outlet of cryogenic columns 4 is connected with main recycling can 3 by the 4th valve 19 that connects on the pipeline.Entrance pipe at described gs-oil separator 1 is connected with fuel-air mixture pump 9 mutually and on the pipeline that connects.The pipeline that connects at the outlet of described condenser 2 and main recycling can 3 mutually and be connected with oil scavenge pump 10 on the pipeline that connects.The pipeline that connects in the upper outlet of described cryogenic columns 4 and 6 outlets of absorber blower fan mutually and be connected with the 5th valve 23 on the pipeline that connects.On the discharge pipe 24 that described absorber blower fan 6 connects, be connected with spark arrester 7.On described absorber blower fan 6 and discharge pipe 24 that spark arrester 7 is connected, be connected with nitrogen pipeline 25.Described nitrogen pipeline 25 is connected with active carbon adsorber 5 inlets by the 8th valve 22 that connects on the pipeline.The following outlet of described cryogenic columns 4 is connected with a pair recycling can 8 by the 6th valve 18 that connects on the bend pipe road.Described pair of recycling can 8 is connected with the discharge pipe 24 of spark arrester 7 inlets by the 7th valve 20 that connects on the pipeline, also can be as required will pay C4 in the recycling can 8 and C3 and volatilize by pipeline and enter the discharge pipe 24 of spark arrester 7 by opening the 7th valve 20.The water that main recycling can discharging valve 15 is used to control main recycling can 3 inner bottom parts bleeds off.Main recycling can fuel outlet valve 16 is used to control the output of recovered oil in the main recycling can 3.Pay recycling can fuel outlet valve 17 and be used to control the output of paying recovered oil in the recycling can 8.
A kind of low-temperature condensing vapour recovery unit used oil gas separating device 1 of the present invention, condenser 2, active carbon adsorber 5 and absorber blower fan 6, each valve and fuel-air mixture pump 9 and oil scavenge pump 10 are the commercially available prod.Cryogenic columns 4, main recycling can 3 and pay recycling can 8 and make, its structure dawn known to those skilled in the art.
Embodiment: naphtha, English name Naphtha, another name light petrol.Utilize low-temperature condensing vapour recovery unit of the present invention that the fuel-air mixture of naphtha volatilization has been carried out separating recovery.On-the-spot fuel-air mixture to the naphtha volatilization has carried out analyzing and testing, and wherein: C3 accounts for 16.88%, and C4 accounts for 43.2%, and C5 accounts for 31.4%, and C6 accounts for 7.22%, and C7 accounts for 1.2%, and C8 accounts for 0.08%.The chemical industry ethene enterprise naphtha trestle work vavuum pump blast pipe of unloading is connected with the entrance pipe of the gs-oil separator 1 of low-temperature condensing vapour recovery unit of the present invention, the fuel-air mixture of on-the-spot naphtha volatilization is sent into the entrance pipe of gs-oil separator 1 by the naphtha trestle work vavuum pump blast pipe of unloading, the outlet temperature of condenser 2 is 7 ℃, temperature range is 7～-80 ℃ in the cryogenic columns 4, temperature value in the cryogenic columns 4 is determined according to the boiling point of the fuel-air mixture constituent that the entrance pipe of gs-oil separator 1 enters, temperature is lower than-47 ℃ in the cryogenic columns 4 of present embodiment, the fuel-air mixture of naphtha volatilization is 91.5% C5 with mixed gas concentration through gs-oil separator 1, C4 and C3 feed condenser 2, isolate concentration and be 8.5% C6, C7 and C8 enter main recycling can 3 by second valve, 14 controls on the following export pipeline of gs-oil separator 1; Is that 60.08%C4 and C3 feed cryogenic columns 4 through condenser 2 with mixed gas concentration, isolates concentration and is 31.4% C5 and enter main recycling can 3; Is that other on-condensible gas of 0.002% feeds active carbon adsorber 5 through cryogenic columns 4 with concentration, isolates concentration and is 60.08% C4 and C3 and enter main recycling can 3 as required or pay recycling can 8.
A kind of low-temperature condensing vapour recovery unit of the present invention is stable through 8 these devices of lunar system line justification, any anomaly do not occur, and oil gas recovery rate reaches more than 99.9%, and exhaust of oil concentration is no more than 25g/m
3, can satisfy " storage tank farm atmosphere pollutants emission standards " regulation requirement (GB20950-2007), the tail gas qualified discharge.
Claims (9)
1. low-temperature condensing vapour recovery unit, it is characterized in that: it comprises gs-oil separator (1), on the entrance pipe of gs-oil separator (1), be connected with first valve (13), the upper outlet of gs-oil separator (1) is connected with condenser (2) inlet by pipeline, the following outlet of gs-oil separator (1) is connected with main recycling can (3) by second valve (14) that connects on the pipeline, the outlet of condenser (2) is connected with main recycling can (3) by pipeline, the outlet of condenser (2) is connected with the inlet of cryogenic columns (4) by the bend pipe road, the upper outlet of cryogenic columns (4) is connected with active carbon adsorber (5) inlet by the 3rd valve (21) that connects on the pipeline, the outlet of active carbon adsorber (5) is connected with discharge pipe (24) by the absorber blower fan (6) that connects on the pipeline, and the following outlet of cryogenic columns (4) is connected with main recycling can (3) by the 4th valve (19) that connects on the pipeline.
2. a kind of low-temperature condensing vapour recovery unit according to claim 1 is characterized in that: the entrance pipe at described gs-oil separator (1) is connected with fuel-air mixture pump (9) mutually and on the pipeline that connects.
3. a kind of low-temperature condensing vapour recovery unit according to claim 1 is characterized in that: the pipeline that connects at the outlet of described condenser (2) and main recycling can (3) mutually and be connected with oil scavenge pump (10) on the pipeline that connects.
4. a kind of low-temperature condensing vapour recovery unit according to claim 1 is characterized in that: the pipeline that connects in the upper outlet of described cryogenic columns (4) and absorber blower fan (6) outlet mutually and be connected with the 5th valve (23) on the pipeline that connects.
5. a kind of low-temperature condensing vapour recovery unit according to claim 1 is characterized in that: be connected with spark arrester (7) on the discharge pipe (24) that described absorber blower fan (6) connects.
6. a kind of according to claim 1 or 5 low-temperature condensing vapour recovery unit is characterized in that: be connected with nitrogen pipeline (25) on described absorber blower fan (6) and discharge pipe (24) that spark arrester (7) is connected.
7. a kind of low-temperature condensing vapour recovery unit according to claim 6 is characterized in that: described nitrogen pipeline (25) is connected with active carbon adsorber (5) inlet by the 8th valve (22) that connects on the pipeline.
8. a kind of low-temperature condensing vapour recovery unit according to claim 1 is characterized in that: the following outlet of described cryogenic columns (4) is connected with a pair recycling can (8) by the 6th valve (18) that connects on the bend pipe road.
9. a kind of low-temperature condensing vapour recovery unit according to claim 8 is characterized in that: described pair of recycling can (8) is connected with the discharge pipe (24) of spark arrester (7) inlet by the 7th valve (20) that connects on the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100505443A CN101244344B (en) | 2008-03-27 | 2008-03-27 | Low-temperature condensing vapour recovery unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100505443A CN101244344B (en) | 2008-03-27 | 2008-03-27 | Low-temperature condensing vapour recovery unit |
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| CN101244344A true CN101244344A (en) | 2008-08-20 |
| CN101244344B CN101244344B (en) | 2010-06-09 |
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| CN2008100505443A Expired - Fee Related CN101244344B (en) | 2008-03-27 | 2008-03-27 | Low-temperature condensing vapour recovery unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830423A (en) * | 2010-06-04 | 2010-09-15 | 四川亚联高科技股份有限公司 | Oil gas purification recycling device and tail gas purification recycling device and method thereof |
| CN103316500A (en) * | 2013-06-20 | 2013-09-25 | 盛源宏达化工有限公司 | Condensate oil automatic emptying device |
| CN104096379A (en) * | 2014-07-11 | 2014-10-15 | 海湾环境科技（北京）股份有限公司 | High-sulfur crude oil gas recovery system for docks |
| CN109772088A (en) * | 2019-03-05 | 2019-05-21 | 江苏鼎程新能源科技有限公司 | A kind of gas station device for recovering oil and gas three times |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK168395B1 (en) * | 1992-01-30 | 1994-03-21 | Anker Jarl Jacobsen | Process for cleaning a mixture of air and vapors from volatile crude oil during recovery of the hydrocarbons and plants for use in the process |
| CN1994858A (en) * | 2006-11-24 | 2007-07-11 | 江苏工业学院 | Oil gas recovery method and device of fuel station |
| CN201168455Y (en) * | 2008-03-27 | 2008-12-24 | 胡永海 | Low-temperature condensation vapour recovery unit |
-
2008
- 2008-03-27 CN CN2008100505443A patent/CN101244344B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830423A (en) * | 2010-06-04 | 2010-09-15 | 四川亚联高科技股份有限公司 | Oil gas purification recycling device and tail gas purification recycling device and method thereof |
| CN103316500A (en) * | 2013-06-20 | 2013-09-25 | 盛源宏达化工有限公司 | Condensate oil automatic emptying device |
| CN104096379A (en) * | 2014-07-11 | 2014-10-15 | 海湾环境科技（北京）股份有限公司 | High-sulfur crude oil gas recovery system for docks |
| CN104096379B (en) * | 2014-07-11 | 2016-03-02 | 海湾环境科技（北京）股份有限公司 | A kind of harbour sour crude oil gas recovery processing system |
| CN109772088A (en) * | 2019-03-05 | 2019-05-21 | 江苏鼎程新能源科技有限公司 | A kind of gas station device for recovering oil and gas three times |
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| CN101244344B (en) | 2010-06-09 |
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Granted publication date: 20100609 Termination date: 20140327 |