[New patent introduction] A pressure tester for gas pressure regulating cabinet

Today, I will introduce a national invention authorized patent-a gas pressure regulator cabinet pressure tester. The patent was applied for by Huangshi Xianda Electric Co., Ltd., and the authorization was announced on December 8, 2017.

Content description

The invention relates to the field of gas, in particular to a pressure tester for a gas pressure regulating cabinet.

Background of the invention

In recent years, with the development and utilization of natural gas and the gradual liberalization of urban gas public utilities, capital from Hong Kong, private, and international multinational corporations have rushed in, plus various capitals such as the former state-owned gas company that has grown stronger after the restructuring. , Making the competition for resources in the existing urban gas market increasingly fierce.

The proposal to build a resource-saving and environment-friendly society, the opening of the country to the field of urban gas, and the extension of pipeline construction provide a rare opportunity for the development of urban gas in China. With the advent of the opportunity for urban gas development, the relationship among the three gas sources of natural gas, liquefied natural gas (LNG) and liquefied petroleum gas (LPG) in China's urban gas industry will be a complementary and complementary relationship of energy sources.

However, gas is in use with a large number of pressure regulating cabinets, and each pressure regulating cabinet must be tested every month. When pressure is measured, a glass U-shaped pressure gauge is used to obtain the pressure difference to measure the pressure.

There are two problems in the pressure measurement of the glass U-shaped pressure gauge: the glass tube of the U-shaped pressure gauge is easy to damage; when the pressure needs to be adjusted and stabilized before the project is completed, there is no pressure in the pipeline, and nitrogen must be prepared to pressurize the pipeline when the pressure is adjusted, which is wasteful Human and financial resources.

Summary of the invention

In order to solve the problem that the glass U-shaped pressure gauge is fragile and its high cost, the invention proposes a gas pressure regulating cabinet pressure tester.

The pressure tester of a gas pressure regulating cabinet is composed of a rubber ball, a closed hose, a metal tee and a pointer pressure gauge, and is characterized in that the rubber ball is connected to the metal tee through a closed hose connected to the gas valve. The pointer pressure gauge is connected to the airtight hose and then connected to the other port of the metal tee; the third port of the metal tee is connected to the airtight hose and then connected to the pipeline to be tested.

Wherein, the pressure tester of the gas pressure regulating cabinet is composed of a rubber ball, a closed hose, a metal tee and a pointer pressure gauge, and is characterized in that the material of the closed hose can be a rubber hose. Among them, the pressure tester of a gas pressure regulating cabinet is composed of a rubber ball, a closed hose, a metal tee and a pointer pressure gauge, and is characterized in that there is a gas valve in the middle of the connection between the rubber ball and the closed hose . Wherein, the pressure tester of the gas pressure regulating cabinet is composed of a rubber ball, a closed hose, a metal tee and a pointer pressure gauge, and is characterized in that the metal tee can be a copper tee.

The beneficial effects of the invention are not only to meet the pressure test requirements of the gas pressure regulating cabinet, but also to have a simple structure, low cost, easy to carry and not easy to damage.

The specific implementation of the present invention is that, according to the schematic diagram of the pressure tester of the gas pressure regulating cabinet as shown in the figure, the rubber ball (2) is connected to the gas valve (3) through the airtight hose (1) and then connected to the metal tee (4) ); the pointer pressure gauge (5) is connected to the airtight hose (1) and then connected to the other port of the metal tee (4); the third port of the metal tee (4) is connected to the airtight hose (1) Connect with the pipeline (6) to be tested. Because the pipeline (6) to be tested is mostly low pressure, when measuring, connect each way to open the valve (3), repeatedly squeeze the rubber ball (2) to inflate the pipeline (6) to be tested, and observe the pointer barometer ( 5) When the reading is stable, close the air valve (3) and read the correct air pressure value.

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