SU1314315A1 - Pressure regulator - Google Patents

Abstract

The invention relates to an automatic control technique and can be used at compressor and gas distribution stations. The purpose of the invention is to increase the reliability of the controller. The pressure regulator contains an actuator 1 with a control chamber 2 and a movable gate sleeve 3, a control device made in the form of a flow regulator 4 with a throttle 5, valve 6, diaphragm 7, spring 8 and pilot 9 with valve 10, diaphragm 11 , a spring 12, a cavity 13, and a pipe 14. The output of the flow stabilizer 4 is connected to the control chamber 2 of the actuator 1 and the pilot inlet 9, and the outlet of the pilot 9 is connected to the output of the actuator 1. 1 Il. 1C ate

Description

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The invention relates to an automatic control technique and can be used at compressor and gas distribution stations.

The purpose of the invention is to increase the reliability of the regulator, pressure.

The drawing shows the pressure regulator

Regulator tor. Contains actuator 1 with control

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camera 2.H under the bushing-sleeve-shutter 3, 9, the device, made in the form of a flow stabilizer 4 with throttle 5, valve 6, diaphragm 7, spring 8 and pilot 9 with valve 10, diaphragm 11, spring 12, cavity 13 , and pipeline 14, the pressure regulator operates as follows.

When high pressure gas is supplied to the inlet of the pressure regulator through the open valve 6 of the flow rate stabilizer 4 and the throttle 5, the gas enters the control chamber 2 of the actuator 1S, the gate sleeve 3 moves to the left and the gas enters the regulator outlet, resulting in outlet pressure increases

From the output of the regulator, the gas enters the cavity 13 of the pilot. As soon as the gas pressure overcomes the force of the spring 12, the valve 10 opens, and the pressure in the control chamber 2 will decrease and the sleeve-bolt 3 will move to the right, reducing the flow rate.

Thus, at the outlet of the pressure regulator, a predetermined pressure is determined, which is determined by the setting of the spring 12. At the same time, the flow rate stabilizer 4 maintains a constant

Compiler A. Gabril nts Editor A. Revin Tehred M. Khodanych Proofreader 0. Tigor

Order 2212/48 Circulation 864 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

52

the gas flow in the control line due to a constant pressure drop across the throttle 5. As the flow rate increases, the difference on the throttle 5 increases, the membrane 7 moves to the right and the valve 6 is applied, reducing the flow rate.

Similarly, the flow stabilizer works with a decrease in the flow rate in the control line.

If gas withdrawal from the pressure regulator output decreases, the output pressure increases, the diaphragm 11 of the pilot 9 moves to the right, the valve 10 starts and the pressure in the control chamber 2 decreases, and the bushing-bolt 3 moves to the right, reducing the flow through the regulator pressure until the outlet pressure is equal to the specified one. In the event of an increase in the gas withdrawal from the output of the pressure regulator, similarly, the bushing-gate 3 moves to the left and, accordingly, the gas flow through the regulator increases.

Claims (1)

Invention Formula A pressure regulator containing an actuator and a control device, characterized in that, in order to increase reliability, the control device is designed as a flow regulator and a single-valve single-membrane pilot, the output of the flow stabilizer connected to the control chamber of the actuator and the pilot input and the pilot output is connected to the output of the actuator.