Pressure regulating structure of variable loading type pressure regulator
A technology of pressure regulator and gas pressure regulator, which is applied in the direction of valve housing structure, valve operation/release device, valve lift, etc., which can solve the instability of natural gas pressure value, provide stable, unstable range width adjustment accuracy and close Accuracy and other issues to achieve the effect of breaking performance bottlenecks, high adjustment accuracy, and good control performance
Pending Publication Date: 2021-01-22
CHENGDU JIUYU GAS EQUIP
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Problems solved by technology
This makes the natural gas pressure value behind the regulator unstable, and this unstable range width is a key factor affecting the adjustment accuracy and closing accuracy of the regulator
[0004] Therefore, the fixed diaphragm loading area used in the prior art cannot provide stable air pressure values for the three states of full open, closed and adjustment process to ensure the adjustment accuracy
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[0032] In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.
[0033] In the description of the embodiments of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front ", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", " The orientation or positional relationship indicated by "axial", "radial", and "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rat...
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The invention relates to a pressure regulating structure of a variable loading type pressure regulator. The pressure regulating structure is arranged in a gas pressure regulator, and a pressure regulator diaphragm is arranged in the gas pressure regulator. The pressure regulating structure comprises a differential pressure elastic air bag arranged on the pressure regulator diaphragm and a pilot valve connected to the differential pressure elastic air bag through an air guide signal pipe, wherein the differential pressure elastic air bag is a circle of completely sealed closed circular ring, and an elastic air bag cavity D is arranged in the differential pressure elastic air bag; and a pilot valve air inlet A is arranged in the pilot valve, the pilot valve comprises a pilot valve body, a piston is arranged in the pilot valve body, and the air guide signal pipe is connected into the pilot valve body and is controlled to be on and off through the position of the piston. The self-operatedvariable loading structure does not need external force, has a self-adaptive adjusting function, is safe, reliable and good in control performance through the loading mode of the differential pressureair bag and the control mode of the differential pressure pilot valve and the air bag, provides the most suitable loading area and is high in regulation precision.
Description
technical field [0001] The invention relates to the technical field of voltage regulators, in particular to the technical field of the pressure regulating structure of variable loading type voltage regulators. Background technique [0002] The gas pressure regulator is a device used to adjust the pipeline pressure in the gas transmission and distribution system, and is widely used in gas transmission pipelines. The main pressure-sensitive element of the gas pressure regulator is a rubber diaphragm. When the air pressure of natural gas acts on the surface of the rubber die, the air pressure will obtain the area of the diaphragm and transform from pressure to thrust. According to the relationship between force and pressure: force = pressure X force area (pressure is the gas pressure value of natural gas). The thrust obtained by the diaphragm and air pressure is the core driving force of the regulator. It has three different loading states when driving the regulator: 1. The ...
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IPC IPC(8): F16K1/00F16K1/32F16K1/36F16K1/46F16K27/02F16K31/126F16K31/36F16K37/00
CPCF16K1/00F16K1/32F16K1/36F16K1/46F16K27/02F16K31/1262F16K31/36F16K37/0091
Inventor 王川谷红军张鑫陈海洋
Owner CHENGDU JIUYU GAS EQUIP
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