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A Three-way Valve Convenient for Testing Air Tightness

A technology for detecting gas and three-way valves, applied in multi-way valves, by detecting the appearance of fluid at the leakage point, using liquid/vacuum degree for liquid tightness measurement, etc., can solve the inconvenience of three-way valve air tightness detection, etc. problems, to achieve the effect of simplifying detection work, large market space, and increasing work efficiency

Active Publication Date: 2020-12-15
安徽谨铭连接系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to make up for the deficiencies of the prior art and to solve the problem that the airtightness of the three-way valve is inconvenient to detect, the present invention proposes a three-way valve that is easy to detect the airtightness

Method used

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  • A Three-way Valve Convenient for Testing Air Tightness
  • A Three-way Valve Convenient for Testing Air Tightness
  • A Three-way Valve Convenient for Testing Air Tightness

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specific Embodiment approach

[0022] As a specific embodiment of the present invention, the air leakage detection unit 2 includes a transparent detection box 21, a No. 1 block 22 and paper scraps 23; the transparent detection box 21 is located at the detection hole 13, and the transparent detection box The body 21 is installed on the outer wall of the valve body 1, and the installation place is sealed; the cross-sectional shape of the No. 1 block 22 is an inverted trapezoid, and the No. 1 block 22 is located in the transparent detection box 21, and the No. 1 block 22 is respectively installed on the On the side wall of the transparent detection box 21 and on the outer wall of the valve body 1, the installation place is sealed, and the No. 1 block 22 and the transparent detection box 21 respectively form a No. 1 area 211 and a No. 2 area 212, and the No. 1 block No. 1 channel 221 is opened symmetrically on 22; a group of oblique holes 222 is opened on the side of said No. 1 channel 221 close to the transpare...

Embodiment approach

[0026] As a specific embodiment of the present invention, the end face of the No. 2 block 43 on the side close to the detection hole 13 is an arc-shaped surface, and its arc-shaped surface increases the contact area with the gas; through this design, through the arc-shaped The No. 2 block 43 on the surface increases the contact area between the gas and the No. 2 block 43, so that the gas can better act on the No. 2 block 43, avoiding the loss of gas and affecting the rotation of the No. 1 plate 31, thereby improving the The practicality of the three-way valve.

[0027] When working, when the sealing ring is not damaged, no gas overflows from the connection between the gas outlet pipe 121 and the valve body 1. At this time, the detection hole 13 is not connected to the gas outlet 12, and the gas leakage detection unit 2 does not work; when the sealing ring When damaged, the gas overflows from the connection between the gas outlet pipe 121 and the valve body 1. At this time, the...

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Abstract

The invention belongs to the technical field of three-way valves, and particularly relates to a three-way valve facilitating detecting air tightness. The three-way valve comprises a valve body and a gas leakage detection unit, wherein the valve body is provided with an air inlet and two air outlets which communicate with one another; an air outlet pipe is arranged at each of the air outlets, and detection holes are formed at the joint between the valve body and the air outlet pipes. According to the three-way valve, the air tightness of the three-way valve can be detected in real time; when asealing ring is damaged, the detection holes communicate with the air outlets; the air leakage detection unit is used for precisely detecting the three-way valve according to the leakage gas; and meanwhile, the three-way valve can be detected without disassembling the three-way valve, the structure is simple, the air tightness detection work of the three-way valve is simplified, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of three-way valves, in particular to a three-way valve which is convenient for testing air tightness. Background technique [0002] The body of the three-way valve has three ports, one in and two out. The difference from ordinary valves is that there is an outlet at the bottom. When the internal valve core is in different positions, the outlets are different. For example, when the valve core is at the bottom, the left and right are connected. During the upper part, the right outlet is blocked, and the left and lower outlets are connected. [0003] At present, the three-way valve is prone to aging during use, resulting in poor airtightness, which makes the gas dredged through the three-way valve easy to leak out, especially for toxic, harmful and flammable gases in the laboratory. If the gas leaks, it will easily explode. If the toxic and harmful gas leaks, it will have an immediate effect on the human body...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K11/00F16K27/00G01M3/04
CPCF16K11/00F16K27/00G01M3/04
Inventor 不公告发明人
Owner 安徽谨铭连接系统有限公司
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