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Double-trigger umbrella type oil and gas pipeline explosion-proof valve

An oil and gas pipeline and explosion-proof technology, which is applied in the direction of pipeline systems, safety valves, balance valves, etc., can solve the problems of low practical performance, achieve the effects of protecting safety, broad market application prospects, and reducing the occupancy rate of pipeline space

Active Publication Date: 2021-06-15
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the device is simple, and the reset operation is convenient, but the device can only realize the one-way explosion-proof on the outlet side, the practical performance is not high, and it cannot better meet the needs of pipeline transportation

Method used

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  • Double-trigger umbrella type oil and gas pipeline explosion-proof valve
  • Double-trigger umbrella type oil and gas pipeline explosion-proof valve
  • Double-trigger umbrella type oil and gas pipeline explosion-proof valve

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing, the present invention will be further described:

[0032] combine figure 1 , figure 2 , image 3 As shown, this double-trigger umbrella type oil and gas pipeline explosion-proof valve includes a valve body 1, a bracket 3, a valve stem guide rail 2, a valve stem group, an explosion-proof cover 16, a left mechanical response mechanism, a right mechanical response mechanism, a locking mechanism, a sensor The temperature action mechanism can block the combustion or shock wave in time when the oil and gas pipeline is burned or exploded at low pressure, so that the pipeline is in a closed state and other pipelines are prevented from being damaged. The valve body 1 is square, formed by buckling two halves and fastening them together. The two ends of the valve body 1 are the valve diameter, the valve stem guide rail 2 is set between the left mechanical response mechanism and the right mechanical response mechanism, the valve s...

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Abstract

The invention relates to a double-trigger umbrella type oil and gas pipeline explosion-proof valve which comprises a valve body, a support, a valve rod guide rail, a valve rod set, an explosion-proof cover, a left mechanical response mechanism, a right mechanical response mechanism, a locking mechanism and a temperature sensing action mechanism. Valve diameter parts are arranged at the two ends of the valve body, and the valve rod guide rail is arranged between the left mechanical response mechanism and the right mechanical response mechanism. The valve rod guide rail is located in the valve body, the valve rod set surrounds the valve rod guide rail, and the valve rod set is externally wrapped by a layer of anti-explosion cover. The left mechanical response mechanism and the right mechanical response mechanism are centrally installed in the valve diameter parts at the two ends of the valve body through the supports respectively. When a pipeline is burnt or exploded, a limiting disc at one end of the device is unfixed and rapidly moves in the guide rail, the valve rod set is rapidly shrunk, and therefore a valve clack is in an opened posture. When the limiting disc moves to the limit distance, the limiting disc and another limiting disc are locked through a locking block and a locking cavity and cannot move continuously, at the moment, the valve clack is tightly attached to the inner wall of the valve body, flames or shock waves can be blocked, and the explosion-proof effect is achieved.

Description

Technical field: [0001] The invention belongs to the technical field of explosion-proof equipment, and in particular relates to a double-trigger umbrella type oil-gas pipeline explosion-proof valve. Background technique: [0002] In 2025, the mileage of long-distance oil and gas pipelines in my country is expected to reach 240,000 kilometers, and a cross-regional oil and gas pipeline network supply pattern has been formed. With the substantial increase in pipeline mileage, the problem of pipeline safety has become more and more serious. [0003] Generally speaking, long-distance oil and gas transportation pipelines must be equipped with explosion-proof valves. The explosion-proof valve is an overpressure automatic protection device. Its basic principle is that when the flow in the pipeline exceeds a certain value, the axial force of the valve core caused by the liquid flow makes it automatically cut off the oil circuit, which converts the flow signal into Pressure differen...

Claims

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Application Information

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IPC IPC(8): F16K17/00F16K17/38F16K37/00F17D5/00
CPCF16K17/00F16K17/38F16K37/00F17D5/00
Inventor 丁宇奇芦烨赵姝婷张杨李思源曾佳杨明
Owner NORTHEAST GASOLINEEUM UNIV
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