CN2499655Y - Gas-liquid linkage device of cut-off valve of long-distance pipeline trunk line - Google Patents

Gas-liquid linkage device of cut-off valve of long-distance pipeline trunk line Download PDF

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Publication number
CN2499655Y
CN2499655Y CN 01231819 CN01231819U CN2499655Y CN 2499655 Y CN2499655 Y CN 2499655Y CN 01231819 CN01231819 CN 01231819 CN 01231819 U CN01231819 U CN 01231819U CN 2499655 Y CN2499655 Y CN 2499655Y
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CN
China
Prior art keywords
valve
gas
oil
capsule
distance pipeline
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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 01231819
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Chinese (zh)
Inventor
王文才
张新昌
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Petrochina Co Ltd
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Petrochina Co Ltd
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Publication date
Application filed by Petrochina Co Ltd filed Critical Petrochina Co Ltd
Priority to CN 01231819 priority Critical patent/CN2499655Y/en
Application granted granted Critical
Publication of CN2499655Y publication Critical patent/CN2499655Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A gas-liquid linkage device of a cut-off valve of a long-distance pipeline main line in a field power-free area of a long-distance pipeline, particularly a pipeline for inflammable, explosive and harmful media such as oil, gas and the like comprises a capsule 1, a three-position four-way reversing valve 3, a hose 4, a communicating valve 5, an oil filling vent 7, an exhaust three-way valve 8, a nitrogen cylinder 10 and the like, wherein the capsule 1 and the three-position four-way reversing valve 3 are respectively arranged on an energy storage oil tank 2, the energy storage oil tank 2 is connected with an oil storage tank 6 through the communicating valve 5, and the capsule 1 is connected with the nitrogen cylinder 10 through the exhaust three-way valve 8.

Description

The gas-liquid linked device of long distance pipeline main line block valve
The utility model relate to a kind of at long distance pipeline, particularly oil, gas etc. inflammable, the explosive and hazardous medium pipeline gas-liquid linked device of long distance pipeline main line block valve in non-transformer area in the open air.
Because the long distance pipeline station spacing is long, the main line block valve is arranged on the backer mostly, is close to the field, wilderness in river, and road is not smooth, generally do not have power supply, under normal circumstances, block valve is switch motion seldom, and when accident occurs, require this valve can be reliably rapidly opened and closed reposefully again.At present, a lot of block valves are by the hand switch of people, also have repack into surge, pneumatic valve, be to open and close by carrying diesel generating set, hydraulic station, movable air compressor, like this, not only time-consuming but also effort, complex operation, need vehicle transport and multiple relevant supplementary equipment, relatively waste, also do not reach the purpose of quick rescue accident.
The purpose of this utility model be to provide a kind of energy fast, safety, the steady gas-liquid linked device of long distance pipeline main line block valve of switch valve.
The utility model is achieved in that and comprises capsule 1, three position four-way directional control valve 3, flexible pipe 4, coupling cock 5, oiling drain 7, exhaust three-way valve 8, pressure regulator valve 9, nitrogen bottle 10, be respectively equipped with capsule 1, three position four-way directional control valve 3 on the energy storage oil tank 2, energy storage oil tank 2 links to each other with oil storage tank 6 by coupling cock 5, and capsule 1 links to each other with nitrogen bottle 10 by exhaust three-way valve 8.
The utility model also adopts following technological scheme:
Pressure regulator valve 9 links to each other with exhaust three-way valve 8.
Flexible pipe 4 one ends are communicated with oil storage tank 6, and the other end is communicated with energy storage oil tank 2 by three position four-way directional control valve 3.
The drain 7 of oiling is arranged on the oil storage tank 6.
Advantage of the present utility model is: owing to be gas-liquid linked structure, energy safety, quick and stable ground switch valve, and be applicable to all kinds of explosion-proof places; simple in structure; operation is convenient, the emergency protection in this device also can be used for standing under the urgent dead electricity situation of high low pressure Decompression valves, and with low cost.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the utility model user mode schematic representation.
Below in conjunction with accompanying drawing the utility model is further described:
As Fig. 1, capsule 1 is set in energy storage oil tank 2, on energy storage oil tank 2, be provided with three position four-way directional control valve 3, energy storage oil tank 2 links to each other with oil storage tank 6 through coupling cock 5, capsule 1 links to each other with pressure gas source through exhaust three-way valve 8, described pressure gas source is a nitrogen bottle 10, links to each other with exhaust three-way valve 8 through decompression pressure regulator valve 9.
Before the work, nitrogen bottle 10 keeps enough pressure tolerance, and the oil in oil storage tank 6 and the energy storage oil tank 2 is an amount of, the working pressure that capsule 1 keeps decompression pressure regulator valve 9 to be set up, and with the outer oil liquid pressure balance of capsule, outlet valve 8 and coupling cock 5 are closed.
When opening block valve, move three position four-way directional control valve 3 handles, leave meta, when driving valve, capsule pressure gas extruding hydraulic oil is opened valve 11 through three position four-way directional control valve 3 and flexible pipe 4, the hydraulic oil of valve oil hydraulic cylinder 12 pistons top enters in the oil storage tank 6 through flexible pipe 4, and nitrogen constantly charges into capsule 1 by decompression pressure regulator valve 9 simultaneously, keeps the stable of working pressure.
When closing block valve, situation is opposite.
After the switch valve action is finished, close decompression pressure regulator valve 9, open exhaust three-way valve 8, open coupling cock 5 again after capsule 1 exhaust, hydraulic oil is charged in the energy storage oil tank 2 by oil storage tank 6, closes coupling cock 5 and exhaust three-way valve 8 then, opens decompression valve 9, pressed gas charges in the capsule 1, the preceding state of the work that returns to again.In oil storage tank 6, add an amount of hydraulic oil by oiling drain 7 during oil starvation, keep suitable oil level.

Claims (4)

1. the gas-liquid linked device of long distance pipeline main line block valve, comprise capsule (1), three position four-way directional control valve (3), flexible pipe (4), coupling cock (5), oiling drain (7), exhaust three-way valve (8), pressure regulator valve (9), nitrogen bottle (10), it is characterized in that: be respectively equipped with capsule (1), three position four-way directional control valve (3) on the energy storage oil tank (2), energy storage oil tank (2) links to each other with oil storage tank (6) by coupling cock (5), and capsule (1) links to each other with nitrogen bottle (10) by exhaust three-way valve (8).
2. the gas-liquid linked device of long distance pipeline main line block valve according to claim 1 is characterized in that: pressure regulator valve (9) links to each other with exhaust three-way valve (8).
3. the gas-liquid linked device of long distance pipeline main line block valve according to claim 1 is characterized in that: flexible pipe (4) one ends are communicated with oil storage tank (6), and the other end is communicated with energy storage oil tank (2) by three position four-way directional control valve (3).
4. the gas-liquid linked device of long distance pipeline main line block valve according to claim 1 is characterized in that: oiling drain (7) is arranged on the oil storage tank (6).
CN 01231819 2001-07-19 2001-07-19 Gas-liquid linkage device of cut-off valve of long-distance pipeline trunk line Expired - Lifetime CN2499655Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 01231819 CN2499655Y (en) 2001-07-19 2001-07-19 Gas-liquid linkage device of cut-off valve of long-distance pipeline trunk line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 01231819 CN2499655Y (en) 2001-07-19 2001-07-19 Gas-liquid linkage device of cut-off valve of long-distance pipeline trunk line

Publications (1)

Publication Number Publication Date
CN2499655Y true CN2499655Y (en) 2002-07-10

Family

ID=33646005

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 01231819 Expired - Lifetime CN2499655Y (en) 2001-07-19 2001-07-19 Gas-liquid linkage device of cut-off valve of long-distance pipeline trunk line

Country Status (1)

Country Link
CN (1) CN2499655Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105416893A (en) * 2015-12-14 2016-03-23 广州天禾自动化实业有限公司 Automatic dehydrating and oil returning system for siphoning type oil tank and oil returning method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105416893A (en) * 2015-12-14 2016-03-23 广州天禾自动化实业有限公司 Automatic dehydrating and oil returning system for siphoning type oil tank and oil returning method

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20110719

Granted publication date: 20020710