A natural gas rapid pressure measurement leak detection equipment and leak 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 problems such as high cost, inability to detect leaks, and unsuitability for wide use, etc., to achieve accurate pressure measurement Leak detection results, strong sealing, labor-saving effect
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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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