Leakage checking valve for natural gas pipe network system

A natural gas pipeline network and valve technology, which is applied in the direction of lifting valves, valve devices, engine components, etc., can solve the problems of difficulty in removing the medium in the pipeline, leakage of the natural gas pipeline network system, and difficulty in leaking pipelines, etc.

Inactive Publication Date: 2017-06-27
XIAN TIANHENG MEASURING INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a leakage inspection valve for natural gas pipeline network system, which solves the

Method used

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  • Leakage checking valve for natural gas pipe network system

Examples

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Embodiment Construction

[0015] Such as figure 1 As shown, a leak detection valve for natural gas pipeline network system, including:

[0016] The valve body 1; the two ends of the valve are provided with flanges.

[0017] The circular cut-off plate 12 arranged in the body 1 has a seal ring inlaid on the edge of the cut-off plate 12; the seal ring inlaid on the edge of the cut-off plate 12 is a hard rubber seal ring.

[0018] The transmission mechanism 11 is set at the center of the cut-off plate 12. The transmission mechanism 11 is connected to the manual disc 3 through the transmission rod 2. Rotating the manual disc 3 can make the cut-off plate 12 rotate around the vertical line, so as to cut off or cut off the medium flowing in the pipeline. the purpose of opening;

[0019] The air pressure measuring device arranged at the downstream of the cut-off plate 12, the air pressure measuring device includes a casing 7 facing away from the center line of the body 1 and radially outward, and a first one-...

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Abstract

The invention discloses a leakage inspection valve for a natural gas pipeline network system, comprising: a valve body; a circular cut-off plate arranged in the body, the edge of the cut-off plate is inlaid with a sealing ring; The mechanism is connected with the manual plate through the transmission rod; the air pressure measuring device is arranged at the downstream of the cut-off plate; the air pump is arranged at the downstream of the air pressure measuring device. Two one-way valve. The invention solves the technical problems in the prior art that it is difficult to determine a leaking pipeline and that it is difficult to remove the medium in the pipeline.

Description

technical field [0001] The invention relates to the field of pipeline network monitoring, in particular to a leakage inspection valve used in a natural gas pipeline network system. Background technique [0002] The natural gas pipeline network system is an important part of urban infrastructure and plays an important role in urban development and convenient residents' lives. However, with the continuous improvement of the level of urbanization, the scale of the natural gas pipeline network is getting larger and larger, and it is becoming more and more difficult to monitor the pipeline network. In order to avoid accidents caused by the leakage of natural gas pipelines, the pipelines are usually checked for leaks regularly. In the prior art, the gas trace detection is carried out by a gas leak detector, and then the leaking part on the pipeline is located by the soap bubble detection method. When the pipe network is relatively concentrated, it is difficult to determine the s...

Claims

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Application Information

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IPC IPC(8): F16K1/32F16K37/00
CPCF16K1/32F16K37/0008
Inventor 吴新潮
Owner XIAN TIANHENG MEASURING INSTR
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