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A micro-flow high-precision light-weight miniaturized pressure regulator valve

A high-precision, micro-flow technology, used in valve devices, safety valves, balance valves, etc., can solve the problems of unguaranteed reliability and accuracy, poor compatibility of working medium, large flow, etc., and achieve easy assembly of the whole machine. , to achieve the effect of light weight miniaturization and strong process realization

Active Publication Date: 2019-03-26
BEIJING INST OF CONTROL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the pressure-reducing and stabilizing valves used in space stations generally have a large weight, large flow rate and poor compatibility with the required working medium, while the reliability and accuracy of industrial products cannot be guaranteed.

Method used

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  • A micro-flow high-precision light-weight miniaturized pressure regulator valve

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Such as figure 1 As shown, the present invention includes a valve body 1, a valve seat 2, a diaphragm assembly 3, a spring seat 4, a spring 5, a valve core 6, a compression device 7, a compression ring 8, a main spring seat 9, and an adjustment ball 10;

[0027] The upper end of the diaphragm assembly 3 has a groove; the main spring seat 9 has a groove matching the groove of the diaphragm assembly 3;

[0028] The valve seat 2 is a combination of metal and non-metallic F4. During processing, a valve seat blank is processed first, and then the non-metallic F4 is placed in the corresponding structure through a hot-pressing process, and finally processed and formed, that is, the non-metallic F4 is processed by hot-pressing. To realize the sealing of parts; metal materials are usually titanium alloy, aluminum alloy, stainless steel, etc., and non-metal materials are...

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Abstract

The invention discloses a micro-flow high-precision light miniaturized pressure stabilizing valve which comprises a valve body, a valve seat, a membrane assembly, a spring seat, a spring, a valve element, a pressing device, a pressing ring, a main spring seat and an adjusting ball. The valve body and the valve seat form a separating structure, the machining requirements for the valve body and the valve seat are reduced, and machining is easy. The valve seat and the valve element are in a soft-hard sealing mode. No friction is achieved in the working process through clearance fit. The valve seat serves as an independent assembly to be assembled on the valve body, meets the requirement of the matched position between the valve seat and the valve element and improves the reset precision. The membrane assembly is sensitive to pressure and prevents leakage of a working medium, and product performance is improved. The valve element is designed integrally, the part number is decreased, and assembly and machining are easy. Based on the characteristics, the product performance is met, space is saved, and light miniaturization is achieved.

Description

technical field [0001] The invention relates to a micro-flow, high-precision, light-weight and miniaturized pressure-stabilizing valve, which belongs to the product field of pressure-reducing and stabilizing valves for space stations. Background technique [0002] The pressure stabilizing valve for the space station is installed in the environmental control and life protection subsystem of the space station to stabilize the output pressure of the carrier gas. During use, after the upstream gas path of the pressure stabilizing valve is opened and passes through the stabilizing valve, the output pressure of the stabilizing valve is kept stable to provide a stable carrier gas output pressure for downstream work. The product requires a small flow rate, the maximum flow rate is 0.03mg / s; high precision (±3%); light weight (<100g); the working medium is hydrogen; the output pressure is continuously adjustable within the range of 0.1-0.2MPa. [0003] At present, the decompressi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/20
CPCF16K17/20
Inventor 王兆立夏继霞范旭丰汪旭东王振兴姜华冉荣
Owner BEIJING INST OF CONTROL ENG
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