SU1509839A1 - Gas pressure regulator - Google Patents

Abstract

The invention relates to automatic regulation and can be used in pneumatic automation systems for machines and installations for various purposes. The purpose of the invention is to improve the accuracy of the controller. The regulator includes a housing 1 with input 2 and output 3 channels, input A, output B and damping chamber C, seat 4, valve 5, spring 6, rod 7, sensitive element of the regulator, made in the form of a membrane 8 with a rigid center 9, a spring 10, a rigid partition 11, a throttle made in the form of a cylindrical channel 12 and a movable element 13 connected with a sensitive element 14 of a pneumatic sensor and forming a measuring chamber D with a housing, which is connected through an opening 15 with an inlet chamber. 2 Il.

Description

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The invention relates to automatic regulation and can be used in pneumatic automation systems for machines and installations for various purposes.

The purpose of the invention is to improve the accuracy of the controller.

FIG. 1 shows a regulator with a sensitive element of a pneumatic sensor in the form of a bellows; Fig 2 is the same in the form of a membrane.

The regulator includes a housing 1 with inlet, 2 and outlet 3 channels connected respectively with inlet A and outlet B with cameras between which saddle 4 is spring-loaded 6 by valve 6, placed in the inlet chamber and connected through rod 7 with spring-loaded element of the regulator, implemented in the form of a membrane 8, a rigid center 9 and a spring 10. The membrane 8 forms a damping chamber C with the body,. separated from the outlet chamber B by a rigid partition 11, in which a choke is installed, made in the form of a cylindrical channel 12 and a movable rod element 13 connected to a sensitive element-membrane 14 of a pneumatic sensor, located in the output cavity of the regulator and forming a measuring chamber with the housing D which is connected through the opening 15 to the inlet chamber. The sensitive element of the pneumatic sensor can be made in the form of a bellows, one end of which is fastened to the housing, and the other end with a movable base or c. the form of a membrane fixed in the housing with a rigid center (Fig. 2).

The regulator works as follows.

When the outlet channel 3 is closed in the outlet chamber B, the gas pressure increases due to the influx of gas from the inlet chamber A through the gap between the seat 4 and the valve 5. Accordingly, the pressure in the damping chamber increases due to the influx of gas flowing through it 12 output chamber B. At the same time, the membrane 8, the rod 7 and the valve 5 move downwards and the valve.

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Pan 5 sits on the saddle 4, stopping the passage of gas into the output chamber B.

When opening the output channel 3, the gas pressure in chambers B and C decreases due to the flow of gas from chamber C to chamber B through channel 12. At the same time, membrane 8, rod 7 and yutapan 5 move upwards. A gap is formed between the cliane 5 and the saddle 4, through which the pelvis from the inlet chamber A enters the outlet chamber B, and. further, through the output channel 3, to the consumer. With increasing gas pressure in the inlet chamber A, it through the opening 1b and the cavity Impacts on the bellows or. the membrane 14, while the rod 13 is moved downward, thus increasing the length of the 1dp passage of the damping throttle. As the inlet pressure decreases, the rod 13 moves up, decreasing the length. 1dr flow area damping throttle, which reduces the output pressure pulsations.

Formula and Invention

 A gas pressure regulator, comprising a housing with inlet and outlet chambers, between which is located a saddle of a spring-loaded valve placed in the inlet chamber and connected to a spring-loaded sensing element forming a damping chamber with the housing, which is separated from the outlet chamber by a rigid partition the output chamber communicates with the damping chamber through a choke mounted in the partition, including a movable element mounted in the cylindrical channel of the partition connected to the sensitive a pneumatic sensor element forming a measuring chamber with the body, which communicates with the input cavity, characterized in that in order to improve the accuracy of the regulator, the mobile element of the throttle is made in the form of a rod mounted in a cylindrical channel with a concentric gap.

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Editor A. Shandor

Compiled by A, Zaslavsky

Tehred A. Kravchuk Proofreader A. Obruchar

Order 5810/44

Circulation 788

VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5

Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101

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Claims (2)

Claim A gas pressure regulator comprising a housing with inlet and outlet chambers, between which there is a saddle of a spring-loaded valve located in the inlet chamber and connected to the spring-loaded sensor. an element forming a damping chamber with the housing, which is separated from the output chamber by a rigid partition, and the output chamber is connected to the damping chamber through a throttle installed in the partition, including a movable element mounted in the cylindrical channel of the partition, connected to the sensitive element of the pneumatic sensor forming the housing measuring chamber, which communicates with the entrance cavity, characterized in that _} in order to improve the accuracy of the regulator, the movable throttle element is made in de rod installed in a cylindrical channel with a concentric gap. ⁱ . 1509839 The invention relates to automatic control and can be used in pneumatic systems of machines and plants of various purposes. The purpose of the invention is to improve the accuracy of the regulator. In FIG. 1 shows a regulator with a sensing element of a pneumatic sensor 10 in the form of a bellows; in FIG. 2 - the same, in the form of a membrane. The controller comprises a housing 1 with input, 2 and output 3 channels connected respectively to input A 15 and output B cameras, between which there is a seat 4 of a spring-loaded valve 6 located in the input chamber and connected through the rod 7 with a spring-loaded sensor 20 a regulator element, made in the form of a membrane 8, a rigid center 9 and a spring 10. The membrane 8 forms a damping chamber C with the housing. separated from the output chamber B by a rigid partition 11, in which a throttle is installed, made in the form of a cylindrical channel 12 and a movable rod element 13 connected to a sensitive element-membrane ³ 14 θ pneumatic sensors located in the output cavity of the regulator and forming a measuring chamber with the housing D, which is connected through the hole 15 with the inlet chamber. The sensing element of the pneumatic sensor can be made in the form of a bellows, one end of which is fastened to the housing, and the other to a movable base or in the form of a membrane fixed in the housing with a rigid center (Fig. 2). The regulator operates as follows. When the outlet channel 3 is closed in the outlet chamber B, the gas pressure increases due to the gas flow from the inlet chamber A through the gap between the seat 4 and the valve 5. Accordingly, the pressure in the damping chamber increases due to the gas flow passing through the channel 12 from the outlet chamber B. In this case, the membrane 8, the stem 7 and the valve 5 are moved down and valve. z A 5 6 FIG. 7