CN200946757Y - Automatic control quick-opening valve system for flare gas recovery - Google Patents

Automatic control quick-opening valve system for flare gas recovery Download PDF

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Publication number
CN200946757Y
CN200946757Y CN 200620064194 CN200620064194U CN200946757Y CN 200946757 Y CN200946757 Y CN 200946757Y CN 200620064194 CN200620064194 CN 200620064194 CN 200620064194 U CN200620064194 U CN 200620064194U CN 200946757 Y CN200946757 Y CN 200946757Y
Authority
CN
China
Prior art keywords
valve
pressure
torch
opening valve
quick opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 200620064194
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Chinese (zh)
Inventor
李雄岩
李雪梅
曹岩辉
黄启海
覃麟植
王蓉
何淼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China National Offshore Oil Corp CNOOC
CNOOC Energy Technology and Services Ltd
Original Assignee
China National Offshore Oil Corp CNOOC
CNOOC Base Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China National Offshore Oil Corp CNOOC, CNOOC Base Group Co Ltd filed Critical China National Offshore Oil Corp CNOOC
Priority to CN 200620064194 priority Critical patent/CN200946757Y/en
Application granted granted Critical
Publication of CN200946757Y publication Critical patent/CN200946757Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A recycled torch gas auto-control quickly opening valve system is composed of a quick-opening valve, a blast film, a bypass valve, a lock-opening valve, a pressure-adjusted valve, wherein using the quick-opening valve and blast film may provide the customer double-guarantee and a safe and reliable passage in emergency. In addition, a pressure regulator valve is provided to guarantee the main pipe of the torch in front of the fluid-divided tin to get the steady gas pressure. These measurements can adequately guarantee the recycled system to be safe and constantly produce products. The utility model has the advantages of reasonable design, simple techniques, less investment on the equipment, less maintenance fee and the whole system equipment occupying less space. Besides this, the utility model can be constructed with less efforts and the period of design and construction for the utility model is short. Under the condition of recycling the torch gas and reforming the torch system, the utility model has less influence to the previous producing system and has good economic benefit and can be widely applied to recycled torch gas system of such industries as petroleum, chemical engineering etc.

Description

A kind of torch gas reclaims control quick opening valve system automatically
Technical field
The utility model belongs to the setting that the torch gas of Petroleum Production reclaims, and particularly a kind of torch gas reclaims control quick opening valve system automatically.
Background technique
At present, in industries such as oil gas field production, petroleum refining and petrochemical industry, all can produce a large amount of torch gas, these torch gas all were by discharging behind the torch burning in the past.In order to make full use of the energy, to reduce environmental pollution, a lot of oil gas fields, oil refinery and petrochemical plant are all to recyclable component such as C in the torch gas 3H 8Deng reclaiming.And a problem that will solve when torch gas reclaimed is, should guarantee the normal operating pressure that reclaiming system is certain, make gas that does not have value and the gas of in emergency circumstances releasing in a large number arrive torch smoothly again and burn, with safety and the minimizing environmental pollution that guarantees reclaiming system.Addressing this problem usual method is to adopt water seal control, and promptly dividing at torch increases a water seal arrangement between flow container and the flare tip.Under nominal situation, utilize water seal arrangement to guarantee the reclaiming system normal pressure; When in emergency circumstances a large amount of gases were released, over-pressure gas broke through the water seal layer of water seal arrangement, entered torch and burned.The advantage of water seal control is a safety, reliable, its shortcoming is a very flexible, when former releasing system increases the back pressure of a fixed amount, just require the safety valve that original system is connected, the throughput of Decompression valves to carry out detailed demonstration, when the discharging burning, easily water is brought in the flare tip simultaneously, even when the molecular sealer impeded drainage is logical, form the high pressure water seal, and cause piping vibration, will constitute certain potential risk to the safe operation of whole system and even flare tip.This method need be built a water sealed tank in addition, owing to need to guarantee certain water level, water is brought in the flare tip when preventing the gas quick drain, so the volume of water sealed tank is generally bigger.Crafty little, the pipe network in offshore platform or oil tanker space gathers, if a last cover seal water system, existing space is often not enough, and the volume of hold facility and investment all can increase.
Summary of the invention
The purpose of this utility model provides a kind of torch gas and reclaims control quick opening valve system automatically, utilize quick opening valve and rupture disk that double shield is provided, releasing for gas in emergency circumstances provides safe and reliable path, be provided with pressure regulator valve in addition, guarantee that gas pressure is steady in the torch house steward before torch divides flow container.Fully guaranteed reclaiming system safety by these measures, stably produced.
The utility model is by quick opening valve, rupture disk, bypass valve, valve driven by lock and pressure regulator valve is formed, be distributed on the torch house steward (3) between branch flow container (2) and the flare tip (1), the quick opening valve (5) and the middle control emergency system (11) that are installed on flare tip (1) main line link to each other with the high alarm switch of pressure (10) on dividing flow container (2), bypass valve (6), rupture disk (7), pressure regulator valve (8) is in parallel with quick opening valve (5) by three branch roads, lock leaves valve (4) and is leading to rupture disk (7), the branch road two ends of pressure regulator valve (8) are respectively installed one, and pressure regulator valve (8) links to each other with pressure transmitter (9) on dividing flow container (2).
The utility model is reasonable in design, and technology is simple, and equipment investment is few, and maintenance cost is low, and the whole system device volume that takes up space is little.Construction amount is little, and the design-build cycle is short, and is little to the original production systematic influence under need be to the situation that reclaims torch gas and flare system is transformed, and has good economic benefits.The flare gas recovery system that can be widely used in industries such as oil, chemical industry.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, the utility model wherein pressure regulator valve (8) can when the reclaiming system proper functioning, regulate pressure in the branch flow container (2) among a small circle; Quick opening valve (5) and rupture disk (7) provide safeguard for a large amount of releasing of gas in emergency circumstances, and the pressure set points of rupture disk (7) is during greater than the pressure set points 50kpa of quick opening valve (5)~150kpa, as the second class protection device.During the flare gas recovery system proper functioning, torch divides the pressure of flow container (2) to fluctuate because of the unbalanced generation of torch tolerance, and pressure regulator valve (8) is regulated aperture release portion torch gas according to the signal of the pressure transmitter (9) on minute flow container (2).When urgency takes place, when a large amount of gases need promptly be released, then divide pressure rising in the flow container (2), the high alarm switch of pressure (10) is when reaching alarming value, middle control emergency system (11) is sent signal and quick opening valve (5) is opened for quick opening valve (5) rapidly, make gas arrive flare tip (1) smoothly, if hindering for some reason, can not open rapidly by quick opening valve (5), the pipe network internal pressure will be because the gathering of gas will continue rising, when the pipe network internal pressure reached the pressure set points of rupture disk (7), gas broke through rupture disk (7) thereby arrives flare tip (1) smoothly.Lock leaves the rupture disk (7) easy for installation of valve (4) and the periodical repair and the replacing of pressure regulator valve (8).Its specific operation process is, two locks driven valve (4) close simultaneously, thereby the branch road by rupture disk (7) and pressure regulator valve (8) is cut off, and realizes the maintenance to both.All paths that lead to flare tip (1) are blocked in the maintenance process, bypass valve (6) need be opened certain aperture, guarantee the safety of reclaiming system.Pressure pressure regulator valve (8) is regulated torch and is divided the interior gas pressure of the preceding torch house steward of flow container (2) to reach 100kpaA~200kpaA.The setting value of rupture disk (7) is 100kpaA~300kpaA.Can open the Pressure Relief Valve of pressure release fast when the selection of valve, quick opening valve (5) select emergency signal to send in 1~5 second, lock leaves valve (4) and selects to have the footpath valve that function is often opened in locking.

Claims (5)

1, a kind of torch gas reclaims controls the quick opening valve system automatically by quick opening valve, rupture disk, bypass valve, valve driven by lock and pressure regulator valve is formed, it is characterized in that being distributed on the torch house steward (3) between branch flow container (2) and the flare tip (1), the quick opening valve (5) and the middle control emergency system (11) that are installed on flare tip (1) main line link to each other with the high alarm switch of pressure (10) on dividing flow container (2), bypass valve (6), rupture disk (7), pressure regulator valve (8) is in parallel with quick opening valve (5) by three branch roads, lock leaves valve (4) and is leading to rupture disk (7), the branch road two ends of pressure regulator valve (8) are respectively installed one, and pressure regulator valve (8) links to each other with pressure transmitter (9) on dividing flow container (2).
2, reclaim control quick opening valve system automatically according to the described a kind of torch gas of claim 1, it is characterized in that the pressure set points 50kpa~150kpa of the pressure set points of rupture disk (7) greater than quick opening valve (5).
3, reclaim control quick opening valve system automatically according to the described a kind of torch gas of claim 1, it is characterized in that pressure pressure regulator valve (8) adjusting torch divides the interior gas pressure of the preceding torch house steward of flow container (2) to reach 100kpaA~200kpaA.
4, reclaim control quick opening valve system automatically according to the described a kind of torch gas of claim 1, the setting value that it is characterized in that rupture disk (7) is 100kpaA~300kpaA.
5, reclaim control quick opening valve system automatically according to the described a kind of torch gas of claim 1, it is characterized in that the selection of valve, can open the Pressure Relief Valve of pressure release fast when quick opening valve (5) selects emergency signal to send in 1~5 second, lock leaves valve (4) and selects to have the footpath valve that function is often opened in locking.
CN 200620064194 2006-09-08 2006-09-08 Automatic control quick-opening valve system for flare gas recovery Expired - Lifetime CN200946757Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620064194 CN200946757Y (en) 2006-09-08 2006-09-08 Automatic control quick-opening valve system for flare gas recovery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620064194 CN200946757Y (en) 2006-09-08 2006-09-08 Automatic control quick-opening valve system for flare gas recovery

Publications (1)

Publication Number Publication Date
CN200946757Y true CN200946757Y (en) 2007-09-12

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104390141A (en) * 2014-10-10 2015-03-04 中石化南京工程有限公司 Control method for acid flare gas releasing of acid gas fluid separation tank
CN110319350A (en) * 2019-07-15 2019-10-11 西南石油大学 A kind of recovery process that gas phase ethane pipeline is dropped a hint and device
CN113324256A (en) * 2020-06-11 2021-08-31 中国海洋石油集团有限公司 Flare gas recovery system for offshore oil production platform
CN113982532A (en) * 2021-10-12 2022-01-28 中海石油(中国)有限公司 Offshore platform flare gas recovery system and method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104390141A (en) * 2014-10-10 2015-03-04 中石化南京工程有限公司 Control method for acid flare gas releasing of acid gas fluid separation tank
CN104390141B (en) * 2014-10-10 2019-02-01 中石化南京工程有限公司 Sour gas liquid separation tank sour gas is set fire torch control method
CN110319350A (en) * 2019-07-15 2019-10-11 西南石油大学 A kind of recovery process that gas phase ethane pipeline is dropped a hint and device
CN110319350B (en) * 2019-07-15 2021-04-13 西南石油大学 Recovery process and device for gas-phase ethane pipeline vent gas
CN113324256A (en) * 2020-06-11 2021-08-31 中国海洋石油集团有限公司 Flare gas recovery system for offshore oil production platform
CN113982532A (en) * 2021-10-12 2022-01-28 中海石油(中国)有限公司 Offshore platform flare gas recovery system and method
CN113982532B (en) * 2021-10-12 2023-12-08 中海石油(中国)有限公司 Offshore platform flare gas recovery system and method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: Beijing City, Dongcheng District Chaoyangmen No. 25 North Street P.O. Box 4705 China CNOOC mansion, zip code: 100010

Co-patentee after: CNOOC Energy Development Co., Ltd.

Patentee after: China National Offshore Oil Corporation

Address before: Beijing City, Dongcheng District Chaoyangmen No. 25 North Street P.O. Box 4705 China CNOOC mansion, zip code: 100010

Co-patentee before: CNOOC Base Group Co Ltd

Patentee before: China National Offshore Oil Corporation

CX01 Expiry of patent term

Granted publication date: 20070912

EXPY Termination of patent right or utility model