Air pressure type rapid switching valve

A fast-switching, pneumatic technology, applied in lift valve, valve details, valve device, etc., can solve the problems of hydraulic pipes and pipe joints vibrating and oil leakage, gaskets must be lined with reinforcing ribs, and the temperature of hydraulic stations rises too quickly. , to achieve the effect of long service life, economical and convenient source of sealing gas, and rapid action

Active Publication Date: 2017-04-26
CHINA ACAD OF AEROSPACE AERODYNAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After super-strength repeated opening and closing, some unsolvable problems are gradually exposed, such as the gasket is easy to be blown out after wear, the gasket must be lined with reinforcing ribs, hydraulic pipes and pipe joints are subject to long-term vibration and oil leakage, and hydraulic vibration is large. The hydraulic station has been charged for a long time and the temperature rises too fast, etc.

Method used

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  • Air pressure type rapid switching valve
  • Air pressure type rapid switching valve
  • Air pressure type rapid switching valve

Examples

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Embodiment Construction

[0043] The invention provides a pneumatic quick switch valve, as attached figure 1 Schematic, including two parts: the valve body and the gas source. The structure in the dotted line frame in the upper part represents the valve body, and the structure in the dotted line frame in the lower part represents the gas source. figure 1 Indicates the closed state of the valve, attached figure 2 Indicates the open state of the valve. The features of the valve body include the shell (1), the front sealing assembly (2.0), the rear sealing assembly (3.0), the cylinder (4.0), the central shaft (5.0), the rectifying tail cone (6), the nozzle (7, 8) etc.; the characteristics of the air source include two-position four-way valve (W1), lubricator (W2), one-way valve (W3), stop valve (W4), pressure reducing valve (W5), sealed air tank (W6), Safety valve (W7), pressure gauge (W8), oil-gas separator (W9), etc. When the two-position four-way valve (W1) is in the de-energized state, the upstr...

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Abstract

The invention relates to an air pressure type rapid switching valve which comprises two large parts, namely a valve body and an air source. The valve body is composed of a shell, a center shaft, an air cylinder, front and rear sealing assemblies, a pipe nozzle and the like. The air source is composed of a sealed air tank and an affiliated valve, pipeline and the like. When a two-position four-way valve for controlling the flowing direction of the air source is in a powered-off state, the front side of the air cylinder is inflated, the rear side of the air cylinder is deflated, the air cylinder presses the front and rear sealing assemblies, and the valve is in a closed state. Otherwise, when the two-position four-way valve for controlling the flowing direction of the air source is in a powered-on state, the rear side of the air cylinder is inflated, the front side of the air cylinder is deflated, and the valve is opened. The air pressure type rapid switching valve is mainly applied to a sub-tran-supersonic wind tunnel and used as a rapid valve, the opening or closing time is not longer than 1s, the opening and closing frequency every year is 15000, the repair cycle is 1 year, and the service life is 10 years.

Description

technical field [0001] The invention relates to a pneumatic quick switch valve, in particular to a wind tunnel compressed air control switch valve, which belongs to the field of valves. Background technique [0002] The sub-span super wind tunnel is a high-speed wind tunnel with a speed range of Mach number 0.4<M≤4.5. The typical sub-span super wind tunnel structure consists of air source, main valve, fast valve, pressure regulating valve, front chamber, nozzle, test sections, outlets, etc., as attached Figure 6 hint. During the test, the compressed air in the air source passes through the main valve→fast valve→pressure regulating valve and then enters the front chamber for rectification, the speed is adjusted by the nozzle, and it is discharged from the outlet after the test in the test section. In addition, some wind tunnels integrate the functions of the fast valve and the pressure regulating valve, and a fast pressure regulating valve realizes the functions of fast ...

Claims

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Application Information

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IPC IPC(8): F16K1/00F16K1/44F16K31/124F15B15/14F16J10/02G01M9/04
CPCF15B15/14F15B15/1428F15B15/1438F15B15/149F16K1/00F16K1/44F16K31/1245G01M9/04
Inventor 袁雄钱丹丹吴晋鹏赵顺友
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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