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Portable small-flow precise pressure regulating device

A pressure regulating device and small flow technology, applied in the direction of valve device, fluid pressure control, fluid pressure control without auxiliary power, etc., can solve the adverse effects of production and testing, difficult to ensure accurate and stable fluid pressure, complex valve structure, etc. Problems, to achieve the effect of convenient equipment maintenance, easy to carry and transport, simple composition structure

Pending Publication Date: 2019-03-22
CHINA ACAD OF AEROSPACE AERODYNAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the existing technical conditions, it is generally realized by a pressure regulating valve. This kind of valve has a complex structure and it is difficult to accurately and stably ensure the fluid pressure within a certain range, which has caused adverse effects on production and testing.

Method used

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  • Portable small-flow precise pressure regulating device
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  • Portable small-flow precise pressure regulating device

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] Such as figure 1 , Figure 4 As shown, a portable small flow precision pressure regulating device includes an upper housing assembly 1, a precise pressure regulating assembly 2 and a lower housing assembly 3;

[0032] The upper housing assembly 1 is composed of a screw 1-1, an upper housing 1-2 and a screw connector 1-3, and the pressure regulation is mainly accomplished by manipulating the screw;

[0033] The precision pressure regulating assembly 2 consists of the first spring 2-1, the inner bushing 2-2, the positioning seat 2-3, the lower spring 2-4, the third gasket 2-5, the diaphragm 2-6, and the limit ring 2 -7, outer bushing 2-8, stopper 2-9, upper spring 2-10, fixed ring 2-11, upper valve 2-12 and lower valve 2-13, the...

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Abstract

The invention provides a portable small-flow precise pressure regulating device. The portable small-flow precise pressure regulating device comprises an upper shell assembly, a precise pressure regulating assembly and a lower shell assembly. The upper shell assembly comprises a screw, an upper shell and a screw connecting part. The precise pressure regulating assembly comprises a first spring, aninner liner, a positioning base, a lower spring, a third gasket, a diaphragm, a limiting ring, an outer liner, a check block, an upper spring, an upper valve and a lower valve. The lower shell assembly comprises a lower shell, a first filler neck, a nut, a nozzle, a first gasket, a second filler neck and a second gasket. Precise pressure regulating of multiple media under different working conditions is achieved, and the portable small-flow precise pressure regulating device has the beneficial effects that the structure is relatively simple, output pressure is stable, and regulating is precise.

Description

technical field [0001] The invention relates to a portable small-flow precision pressure regulating device, which belongs to the technical field of fluid machinery. Background technique [0002] In aerospace scientific research and production, for the transportation and distribution of fluid media such as air and water, it is often necessary to control the pressure within a certain range to meet the needs of different working conditions. Under the current technical conditions, it is generally realized by a pressure regulating valve. This kind of valve has a complex structure and it is difficult to accurately and stably ensure the fluid pressure within a certain range, which has caused adverse effects on production and testing. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, adopt new structural design and new sealing material, and provide a portable small flow precision pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/20G05D16/06
CPCG05D16/063F16K17/20
Inventor 陈广涛马百贺焦方坤付健壮刘祥刘官韩春华
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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