Natural gas rapid pressure measurement and leakage detection equipment and leakage detection method

A technology of natural gas and pressure measurement, which is applied in the direction of measuring devices, fluid tightness testing, machine/structural component testing, etc. It can solve the problems of high cost, inability to detect leaks, unsuitable for wide use, etc., and achieve easy disassembly and assembly , strong sealing, labor-saving effect

Active Publication Date: 2020-07-31
伊藤未来能源设备(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: each individual gas pipeline must be equipped with a pressure detection instrument such as the above, so that each gas pipeline can be lea...

Method used

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  • Natural gas rapid pressure measurement and leakage detection equipment and leakage detection method
  • Natural gas rapid pressure measurement and leakage detection equipment and leakage detection method
  • Natural gas rapid pressure measurement and leakage detection equipment and leakage detection method

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Experimental program
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Embodiment 1

[0040] Embodiment one: refer to figure 1 , is a natural gas rapid pressure measurement leak detection device disclosed by the invention, including a gas pipeline 1, the gas pipeline 1 includes a first pipeline 1.1 and a second pipeline 1.2, the gas outlet end of the first pipeline 1.1 is connected with a gas meter 3, and the gas meter 3 The gas outlet end of the gas pipeline communicates with the inlet end of the second pipeline 1.2, the first pipeline 1.1 and the second pipeline 1.2 are connected through the gas meter 3, and the gas meter 3 is used to detect the flow rate of natural gas in the gas pipeline 1, and the first pipeline 1.1 is set There is an opening and closing valve 2 for opening or closing the gas pipeline, and the opening and closing valve 2 is a ball valve.

[0041] refer to figure 1 and image 3 , the second pipeline 1.2 is communicated with a tee pipe 1.3, one of the mouths of the tee pipe 1.3 is a pressure measuring pipe mouth 4, figure 1 The installati...

Embodiment 2

[0050] Embodiment 2: A method for rapid pressure measurement and leak detection of natural gas disclosed by the invention, using Embodiment 1 to detect gas pipeline leakage, the steps of the leak detection method are as follows:

[0051] (1) Install the threaded push rod 6.2 on the threaded hole 6.1 of the plug 6, and use the plug 6 and the check valve 5 to block the pressure measuring pipe port 4. The gas pipeline 1 is in a closed state. The threaded plug 8 connected with the pressure gauge is installed on the pressure measurement nozzle 4, the screw blade 7 on the threaded plug 8 is opposite to the first slit 6.10 and mated, and the threaded plug 8 is screwed to drive the threaded push rod 6.2 to The check valve 5 is approached, and one end of the threaded push rod 6.2 touches the valve stem 5.1 on the check valve 5, and the check valve 5 is pushed open, thereby opening the pressure measuring nozzle 4;

[0052] (2) There is air flow in the gas pipeline from the pressure meas...

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Abstract

The invention relates to natural gas rapid pressure measurement and leakage detection equipment and a leakage detection method. The leakage detection equipment comprises a gas pipeline. An opening andclosing valve for opening and closing the gas pipeline is arranged on the gas pipeline; the gas pipeline is communicated with a three-way pipe; one pipe orifice of the three-way pipe is a pressure measuring pipe orifice; the pressure measuring pipe orifice is provided with a check valve for opening and closing the pressure measuring pipe orifice and a plug for plugging the pressure measuring pipeorifice; the plug is provided with a threaded hole penetrating from the outer surface of the plug to the inner surface of the plug and a threaded push rod in threaded fit with the threaded hole; theend part of the pressure measuring pipe orifice is sleeved with a threaded plug through threads; the other end, connected with the pressure measuring pipe orifice, of the threaded plug is communicatedwith a pressure measuring meter; the threaded plug is internally provided with a screwdriver blade which moves in the radial direction of the pressure measuring pipe orifice along with the threaded plug so as to screw the threaded push rod to move in the axial direction of the plug; the threaded push rod pushes a valve rod on the check valve to move to open the pressure measuring pipe orifice; and the check valve is provided with an elastic piece which enables the check valve to reset elastically to seal the pressure measuring pipe orifice. Rapid leakage detection is achieved, efficiency is high, convenience is achieved, and resources are saved.

Description

technical field [0001] The invention relates to the technical field of natural gas leak detection, in particular to a natural gas rapid pressure measurement leak detection device and a leak detection method. Background technique [0002] As a high-quality energy source, natural gas is widely used in people's life and industrial production. However, due to its flammability, explosion, and easy diffusion, natural gas pipeline leakage and rupture accidents not only cause great economic losses, but are more likely to cause personal injury and Environmental pollution and other consequences, therefore, it is very important to carry out online detection of natural gas pipeline leakage, timely detection of leakage and prevention of hidden dangers. [0003] At present, in the prior art, in a Chinese patent document with the authorized announcement number CN206248296U, a gas meter ball valve air tightness pressure detector is recorded, including a machine base, a pressure gauge, a con...

Claims

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Application Information

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IPC IPC(8): G01M3/28
CPCG01M3/2815
Inventor 柏宇煜
Owner 伊藤未来能源设备(上海)有限公司
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