Three-way valve convenient for air tightness detection

A three-way valve and gas detection technology, which is applied to multi-way valves, liquid-tightness measurement using liquid/vacuum degree, valve devices, etc., can solve the problems of sewage not up to standard, poor air-tightness, easy aging, etc. Achieve the effect of good sewage discharge index and convenient use
CN110259989AInactive Publication Date: 2019-09-20ηŸ³ζ„ˆθΆ…
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
ηŸ³ζ„ˆθΆ…
Publication Date
2019-09-20
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to the field of three-way valves, in particular to one three-way valve convenient for air tightness detection. The three-way valve comprises a main body mechanism, a control mechanism, a detection mechanism, a filtering mechanism and a descaling mechanism. According to the three-way valve convenient for the air tightness detection, waste water passes through a first filter net and a second filter net correspondingly when entering other two outlets through an inlet, the first filter net and the second filter net filter large-particle impurities contained in the waste water, the drain contamination index is made to be better, when the situation that impurities block the first filter net and the second filter net appears, the first filter net and the second filter net are blocked to make the pressure of the middle portion of a three-way valve body be increased, pneumatic balls inside two moving slots perform expansion to squeeze installation rods to make the installation rods rotate around rotating shafts, and then nozzle cleaners are driven to remove the impurities in the first filter net and the second filter net, so that the situation of valve body blocking is disposed in time when the waste water contains more impurities, and the three-way valve convenient for the air tightness detection is made to be more convenient to use.
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Description

technical field

[0001] The invention relates to the field of three-way valves, in particular to a three-way valve which is convenient for testing air tightness. Background technique

[0002] Three-way valve, the valve body has three ports, one in and two out, (left in, right and bottom out) and ordinary valves are different in that there is an outlet at the bottom, when the internal spool is in different positions, the outlets are different, such as the spool When it is at the bottom, the left and right are connected. When the spool is at the top, the right outlet is blocked, and the left and the lower port are connected. Because the left mouth and the right mouth are not on a horizontal line. When the high-speed heater is released in an emergency, the valve is closed and the water is bypassed. At present, the three-way valve is prone to aging during use, resulting in poor airtightness, so the airtightness test of the three-way inside becomes very critical, so usually the ...

Claims

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