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Miniature pressure scanning valve

A scanning valve and pressure technology, applied in the direction of measuring fluid pressure, instruments, measuring devices, etc., can solve the problems of occupying a large space, unfavorable miniaturization of pressure scanning valves, high manufacturing and maintenance costs, and achieve low manufacturing and maintenance costs. The effect of shortening the test preparation cycle and long service life

Pending Publication Date: 2021-08-13
四川天利科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current pressure scanning valve is equipped with multiple valves, and the opening and closing of multiple valves are controlled by the logic circuit to realize the switching of the working mode. Facilitates the miniaturization of this pressure scanning valve and is more expensive to manufacture and repair

Method used

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Embodiment Construction

[0038] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0039] Such as Figure 1-15 A miniature pressure scanning valve shown includes a valve shuttle 1, a valve body 2 and a power assembly. The valve shuttle 1 slides linearly in the valve body 2 through the power assembly. The valve shuttle 1 is provided with an intermediate pipeline e and intermediate pipeline b, the valve body 2 is provided with a purge gas source pipeline 2-5, a measured gas source pipeline 2-7 and a pressure sensor pressure measuring end pipeline 2-6; the valve shuttle 1 reaches valve position 1 under the action of the power component, and the purge gas source pipeline 2-5 and the measured gas source pipeline 2-7 are connected through the intermediate pipeline e; the valve shuttle 1 reaches the valve position under the action of the power component Secon...

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PUM

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Abstract

The invention provides a miniature pressure scanning valve which comprises a valve shuttle, a valve body and a power assembly, wherein the valve shuttle linearly slides in the valve body through the power assembly, a middle pipeline e and a middle pipeline b are arranged in the valve shuttle, and a purging gas source pipeline, a detected gas source pipeline and a pressure sensor pressure measuring end pipeline are arranged in the valve body; the valve shuttle reaches the first valve position under the action of the power assembly, and the purging gas source pipeline and the detected gas source pipeline are communicated through the middle pipeline e; and the valve shuttle reaches the second valve position under the action of the power assembly, and the detected gas source pipeline is communicated with the pressure measuring end pipeline of the pressure sensor through the middle pipeline b. According to the pressure scanning valve, the working modes can be simply and rapidly switched, a tedious switching control system and various valves are not needed, and miniaturization design of the pressure scanning valve is better facilitated.

Description

technical field [0001] The invention relates to a miniature pressure scanning valve, which belongs to the field of pressure scanning valves. Background technique [0002] The pressure scanning valve is a set of highly integrated, highly modular and high-accuracy pressure acquisition and measurement devices integrating electronics and precision machinery, including calibration gas circuits, purge gas circuits, zero-clearing gas circuits and measuring gas circuits. [0003] In the fields of aero-engine tests and wind tunnel tests, pressure is an important measurement parameter, which has the characteristics of many measurement points, high measurement accuracy, wide range, many test states, and long running time. Pressure scanning valve technology has become a multi- The mainstream of point pressure measurement. [0004] The current pressure scanning valve is equipped with multiple valves, and the opening and closing of multiple valves are controlled by the logic circuit to r...

Claims

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Application Information

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IPC IPC(8): G01L19/00G01L27/00
CPCG01L19/00G01L27/005
Inventor 王力张光中闫文吉陈洪敏孙小方
Owner 四川天利科技有限责任公司
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