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Valve body of gas pressure regulator

A gas pressure regulator and valve body technology, which is applied in valve details, safety valves, balance valves, etc., can solve problems such as outlet pressure fluctuations, gas turbulence at the outlet, and whistles, etc., and achieve good noise reduction effects. The effect of stable pressure and noise prevention

Active Publication Date: 2012-02-22
JIANGSU COSHIN GAS EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The size of the inlet and outlet of the gas pressure regulator valve body of the above-mentioned prior art is basically the same. When the flow rate is large and the pressure difference between the inlet and outlet of the valve body is large, the outlet pressure will fluctuate, and the gas at the outlet will appear Partial disorder causes loud noises from the valve body, even whistling, which is not conducive to environmental protection

Method used

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  • Valve body of gas pressure regulator
  • Valve body of gas pressure regulator

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Embodiment 1

[0016] See figure 1 , the valve body 6 of the gas pressure regulator of this embodiment includes: an inlet 1 , an outlet 2 and a valve port 5 located between the inlet 1 and the outlet 2 .

[0017] The main pressure regulating valve 4 is provided on the valve body 6, and the main pressure regulating valve 4 includes: a housing, a main membrane 4-3 arranged in the housing, a tray 4-4 arranged on the main membrane 4-3, and a tray 4-4 arranged on the tray. The pressure regulating mechanism 4-5 at the upper end of 4-4, the screw rod 4-6 vertically connected with the tray 4-4, and the pressure regulating valve pad 4-7 located at the lower end of the screw rod 4-6; the air pressure below the main film 4-3 Balanced with the pressure of the pressure regulating mechanism 4-5, and the air pressure below the main film 4-3 increases, the screw 4-6 moves up, and the airflow gap between the pressure regulating valve pad 4-7 and the valve port 5 becomes smaller ; On the contrary, the air pr...

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Abstract

The invention relates to a valve body of a gas pressure regulator capable of reducing noise, which comprises: an inlet and an outlet; the diameter of the inlet is smaller than that of the outlet. In the present invention, the pipe diameter of the inlet is smaller than that of the outlet, which is beneficial to improve the local turbulence of the gas at the outlet after the pressure of the outlet is lowered, so that the pressure of the outlet is relatively stable, thereby preventing the generation of noise.

Description

technical field [0001] The invention relates to an auxiliary equipment belonging to urban gas transmission pipeline network, in particular to a valve body of a gas pressure regulator. Background technique [0002] At present, gas pressure regulators are widely used in urban gas pipelines. [0003] Chinese Patent Literature Publication No. CN2636019 discloses a gas pressure regulator, which consists of a valve body, an upper cover, a bottom cover, a valve port, a diaphragm lower case connected to the upper part of the valve body, a diaphragm upper case, and a diaphragm upper and lower case. The main diaphragm between, the main adjustment spring on the diaphragm tray, the balance film between the balance film inner tray and the upper cover, and the upper cover, the balance film, the balance film inner tray, the main diaphragm, the tray It consists of a valve stem connected to the valve, and a valve connected to the bottom end of the valve stem and below the valve port. A cut...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K27/02F16K31/126F16K17/36
Inventor 金国平吴建伟刘宏亮王金流
Owner JIANGSU COSHIN GAS EQUIP