CN204957453U - Storage tank vapor recovery system system - Google Patents
Storage tank vapor recovery system system Download PDFInfo
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- CN204957453U CN204957453U CN201520620979.2U CN201520620979U CN204957453U CN 204957453 U CN204957453 U CN 204957453U CN 201520620979 U CN201520620979 U CN 201520620979U CN 204957453 U CN204957453 U CN 204957453U
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- storage tank
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- recovery system
- tank
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Abstract
The utility model discloses a storage tank vapor recovery system system. This storage tank vapor recovery system system includes a plurality of oil tank, buffer tank and pipeline flame arrester, every oil tank top is equipped with the breather valve, emergency vent valve and single -breathing valve, pipeline flame arrester one end and single -breathing valve intercommunication, the other end links to each other with storage tank gas pipeline one end, every storage tank gas pipeline's the other end passes through the top intercommunication of gaseous phase header and buffer tank, the buffer tank top still is equipped with buffer tank gas to vapor recovery system device pipeline, the buffer tank bottom is equipped with a plurality of drain pipe, every drain pipe lets in drain cup. The utility model is used for the vapor recovery system of storage tank can reach vapor recovery system essence safety, flow advantage such as reasonable simple.
Description
Technical field
The utility model belongs to petrochemical enterprise oil storage and transportation safety and environmental protection production field, particularly a kind of gas recovery system for oil of storage tank.
Background technology
Part is had to come from the uncontrollable discharge gas in oil product storage tank district in the gas pollutant of petrochemical enterprise, these pollutant emissions are in air, both certain economic loss had been caused, and not easily decompose the features such as dilution because concentration is higher, directly aerial contamination will be caused, also harm can be formed to health.In addition, part oil product directly contacts with air, easily causes the change of product property, aberration, thus directly affects product design.
In recent years, along with the raising gradually of people's environmental consciousness, country and enterprise's environmental pollution pay attention to day by day, reducing the discharge of tank area inorganization gas pollutant, is protection of the environment and a kind of important means improving Business Economic Benefit.
The patent No. is 201320674991.2 and Chinese patent, disclose a kind of device for recovering oil and gas of oil product storage tank, this device comprises several oil product storage tanks, oil product top in each oil product storage tank is equipped with inner floating roof, nitrogen inlet and breathing valve is provided with at oil product storage tank top, the one vertical flexible pipe upper end be located in oil product storage tank is connected with nitrogen inlet, lower end overlaps mutually with inner floating roof, each oil product storage tank top is connected with one end of a transportation pipeline respectively, the other end of transportation pipeline stretches into bottom a water sealed tank straight down, transportation pipeline is provided with the first check valve, a watering pipeline is provided with in the left upper portion of water sealed tank, right side central is provided with an overflow passage, bottom is provided with a delivery piping.This patented technology is the pressure utilizing water sealed tank to carry out controlling storage tank, recycling is carried out to the oil gas in oil product storage tank, but it can bring inconvenience to regular job and maintenance, and each other impact of miniature water sealed cans when cannot ensure presence of fire accident between device for recovering oil and gas and storage tank, cannot essential safety be accomplished.
The method of the collection gas of oil storage tank that current domestic each petrochemical enterprise is implemented is that storage tank gas phase pipeline is interconnected after flame trap substantially, due to the imperfection problem of technological process and flame trap performance, there is the safety affecting other storage tanks when single storage tank has an accident like this, even may there is the risk of " baked wheaten cake is operated "; The configuration of multiple storage tank annex and the unreasonable of each annex setup pressure value in addition, cause the operating pressure value of each storage tank annex to exist to occur simultaneously, have the possibility of two storage tank annexes action simultaneously, as nitrogen envelope valve does not cut out, breathing valve just starts the phenomenon of leaking, so both dangerous also not energy-conservation.
Utility model content
The purpose of this utility model is to provide a kind of new gas of oil storage tank recovery system, for the petroleum vapor recovery of storage tank, reaches petroleum vapor recovery essential safety, the flow process rationally advantage such as simple.
The utility model provides a kind of gas of oil storage tank recovery system, comprise several oil product storage tanks, it is characterized in that: each oil product storage tank top is provided with breathing valve, emergency relief valve and single breathing valve, this gas of oil storage tank recovery system also comprises an expansion tank and the flame arrester for pipe identical with storage tank number, single breathing valve is communicated with flame arrester for pipe one end, the flame arrester for pipe other end is connected with storage tank gas phase pipeline one end, the other end of each storage tank gas phase pipeline is communicated with the top of expansion tank by gas phase header, expansion tank top is also provided with expansion tank gas to device for recovering oil and gas pipeline, several drain hoses are provided with bottom expansion tank, each drain hose passes into water drain funnel.
Described breathing valve is with pipe end flame trap, and breathing valve is arranged at oil product storage tank top by pipe end flame trap.
The utility model can be used for the petroleum vapor recovery of storage tank, both be applicable to internal pressure be micro-interior pressure or normal pressure time internal floating roof tank, being also applicable to internal pressure is micro-interior pressure or normal pressure fixed roof tank (design pressure is 2kPa) and low pressure fixed roof tank (design pressure is 15 ~ 17kPa).
The utility model advantage is compared with prior art:
1) a kind of gas of oil storage tank recovery system provided by the utility model is advanced, reliable, and the gas utilizing this recovery system storage tank can be discharged in a organized way carries out centralized collection and recycling or recycling, both adds economic benefit, and also meets environmental demands; Also can avoid altering mutually of oil gas, the hidden danger existed after avoiding storage tank gas phase pipeline UNICOM in the past, avoids the risk of " baked wheaten cake is operated " completely; And influencing each other of various product design can be avoided;
2) a kind of gas of oil storage tank recovery system provided by the utility model is guarantee the quiet run of rear end oil gas treating device, in oil-gas recovery system, expansion tank is set, substitute with expansion tank collection buffering and the separatory that gas holder carries out volatile gas, stablize oil gas flow and the pressure of oil-feed Flash Gas Compression Skid System; And floor plan floor area can be reduced;
3) a kind of gas of oil storage tank recovery system reasonable disposition storage tank annex provided by the utility model, flame trap, single breathing valve, breathing valve and emergency relief valve as reasonable disposition, can carry out multiple protection measure to storage tank, ensure that storage tank safe and reliable operation.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but does not limit range of use of the present utility model.
Accompanying drawing explanation
Fig. 1 is a kind of gas of oil storage tank recovery system of the utility model schematic diagram.
Reference numeral shown in figure is:
1. oil product storage tank, 3. single breathing valve, 4. flame arrester for pipe, 5. breathing valve, 6. emergency relief valve, 7. storage tank gas phase pipeline, 8, gas phase header, 9, expansion tank, 10. expansion tank gas be to device for recovering oil and gas pipeline, 11. drain hoses, 12. water drain funnels, 14. sluicing valves, 15. expansion tank gas control valves, 16. pipe end flame traps.
Detailed description of the invention
As shown in Figure 1, a kind of gas of oil storage tank recovery system, comprise several oil product storage tanks 1, each oil product storage tank 1 top is provided with breathing valve 5, breathing valve 5 shown in Fig. 1 is with pipe end flame trap 16, this gas of oil storage tank recovery system also comprises an expansion tank 9, each oil product storage tank 1 top is also provided with emergency relief valve 6 and single breathing valve 3, single breathing valve 3 is communicated with flame arrester for pipe 4 one end, flame arrester for pipe 4 other end is connected with storage tank gas phase pipeline 7 one end, the other end of each storage tank gas phase pipeline 7 is communicated with the top of expansion tank 9 by gas phase header 8, expansion tank 9 top is also provided with expansion tank gas to device for recovering oil and gas pipeline 10, several drain hoses 11 are provided with bottom expansion tank 9, each drain hose 11 passes into water drain funnel 12.
Described each drain hose 11 is provided with sluicing valve 14, expansion tank gas to device for recovering oil and gas pipeline 10 is provided with expansion tank gas control valve 15.
When the reasons such as oil product storage tank 1 discharging, temperature drop cause pressure of storage tank be down to breathing valve 5 set vacuum values time, breathing valve 5 automatic control is opened and also in oil product storage tank 1, is supplemented air, to ensure the safety of oil product storage tank 1.
When the reasons such as oil product storage tank 1 charging, temperature rise cause pressure of storage tank to rise to single breathing valve 3 setting pressure, single breathing valve 3 is opened automatically, oil gas is breathed out and is entered storage tank gas phase pipeline 7 by flame arrester for pipe 4, after each storage tank gas phase pipeline 7 merges, medium gas phase identical or different in some oil product storage tanks 1 enters gas phase header 8, after expansion tank 9 cushions, finally enter expansion tank gas to device for recovering oil and gas pipeline 10, can focus on.Liquid in expansion tank 9 and impurity drain into water drain funnel 12 by expansion tank drain hose 11 and discharge.
When there is oil product storage tank 1 presence of fire, when there is the unusual service conditions such as single breathing valve 3 blocking, oil product storage tank 1 pressure continues to rise, until when arriving breathing valve 5 setting pressure, breathing valve 5 is opened automatically, and oil gas is directly emptying after the pipe end flame trap 16 on breathing valve 5; As breathing valve 5 also there is unusual service condition time, when oil product storage tank 1 pressure increase is to emergency relief valve 6 setting pressure, emergency relief valve 6 is automatically opened oil gas is emptying, can protect being perfectly safe of storage tank.
Claims (2)
1. a gas of oil storage tank recovery system, comprise several oil product storage tanks, it is characterized in that: each oil product storage tank top is provided with breathing valve, emergency relief valve and single breathing valve, this gas of oil storage tank recovery system also comprises an expansion tank and the flame arrester for pipe identical with storage tank number, single breathing valve is communicated with flame arrester for pipe one end, the flame arrester for pipe other end is connected with storage tank gas phase pipeline one end, the other end of each storage tank gas phase pipeline is communicated with the top of expansion tank by gas phase header, expansion tank top is also provided with expansion tank gas to device for recovering oil and gas pipeline, several drain hoses are provided with bottom expansion tank, each drain hose passes into water drain funnel.
2. a kind of gas of oil storage tank recovery system according to claim 1, is characterized in that: described breathing valve is with pipe end flame trap, and breathing valve is arranged at oil product storage tank top by pipe end flame trap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520620979.2U CN204957453U (en) | 2015-08-17 | 2015-08-17 | Storage tank vapor recovery system system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520620979.2U CN204957453U (en) | 2015-08-17 | 2015-08-17 | Storage tank vapor recovery system system |
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| CN204957453U true CN204957453U (en) | 2016-01-13 |
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| CN201520620979.2U Active CN204957453U (en) | 2015-08-17 | 2015-08-17 | Storage tank vapor recovery system system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106118711A (en) * | 2016-08-29 | 2016-11-16 | 山东东明石化集团有限公司 | A kind of railway gasoline entrucking oil-gas recovery processing device and technique |
| CN107758596A (en) * | 2016-08-23 | 2018-03-06 | 中石化广州工程有限公司 | A kind of Liquefied Hydrocarbon tank car loading method and device |
| CN110386373A (en) * | 2018-04-18 | 2019-10-29 | 宝塔国际石化工程技术有限公司 | A kind of tank field nitrogen seal system |
-
2015
- 2015-08-17 CN CN201520620979.2U patent/CN204957453U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107758596A (en) * | 2016-08-23 | 2018-03-06 | 中石化广州工程有限公司 | A kind of Liquefied Hydrocarbon tank car loading method and device |
| CN107758596B (en) * | 2016-08-23 | 2019-03-08 | 中石化广州工程有限公司 | A kind of Liquefied Hydrocarbon tank car loading method and device |
| CN106118711A (en) * | 2016-08-29 | 2016-11-16 | 山东东明石化集团有限公司 | A kind of railway gasoline entrucking oil-gas recovery processing device and technique |
| CN110386373A (en) * | 2018-04-18 | 2019-10-29 | 宝塔国际石化工程技术有限公司 | A kind of tank field nitrogen seal system |
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