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Gas pressure regulator valve body

A gas pressure regulator and valve body technology, applied in valve details, safety valves, balance valves, etc., can solve the problems of whistling, outlet pressure fluctuations, and gas turbulence at the outlet, to prevent noise and reduce noise. Effect, the effect of stable outlet pressure

Active Publication Date: 2008-09-10
JIANGSU COSHIN GAS EQUIP
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  • Summary
  • Abstract
  • Description
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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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  • Gas pressure regulator valve body

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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 noises, comprising an inlet and an outlet. The caliber of the inlet is less than that of the outlet. In the invention, the caliber of the inlet is less than that of the outlet, which facilitates improving the situation that local gas disorder occurs at the outlet after a barometric pressure of the outlet reduces, so as to stabilize the pressure of the outlet and prevent the generation of noises.

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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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
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