Air tightness detection device for gate valve
An air-tightness detection and gate valve technology, which is applied in the use of liquid/vacuum for liquid-tightness measurement, by detecting the appearance of fluid at the leak point, and by measuring the acceleration and deceleration rate of the fluid, etc. , It is impossible to detect the cut-off performance of gate valve products to achieve the effect of protecting the appearance.
Inactive Publication Date: 2014-07-30
FUJIAN HAIYANG VALVE TECH
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Problems solved by technology
[0004] The above-mentioned testing equipment can only test the airtightness of the cavity of related products, but cannot test the cut-off performance of gate valve products, and cannot form a flow testing operation
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[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0017] figure 1 , figure 2 As shown, an air tightness detection device for a gate valve includes a housing 10 and at least one detection mechanism 20. The detection mechanism 20 includes a static chuck 1 and a moving chuck 2, and the moving chuck 2 is arranged opposite to the static chuck 1. , the end faces of the movable chuck 2 and the static chuck 1 are provided with rubber gaskets 21, 11, the static chuck 1 is fixed on the housing 10, the movable chuck 2 is fixed on the piston rod of a cylinder 3, and the cylinder 3. It is fixed on the housing 10 and connected to the air source through an electromagnetic reversing valve 4. There is an air outlet pipe 12 in the middle of the static chuck 1. One end of the air outlet pipe 12 is in the middle of the end surface of the static chuck 1, and the other end is Into the water tank 5 arra...
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The invention discloses an air tightness detection device for a gate valve. The device comprises a shell and at least one detection mechanism, the detection mechanism comprises a static chuck and a dynamic chuck, the dynamic chuck is arranged opposite to the static chuck, rubber gaskets are arranged on the end faces of the static chuck and the dynamic chuck, the static chuck is fixed on the shell, the dynamic chuck is fixed on a piston rod of a cylinder, and the cylinder is fixed on the shell and connected with a gas source through an electromagnetic reversing valve; an air outlet pipe is arranged in the middle of the static chuck, one end of the air outlet pipe is positioned in the middle of the end face of the static chuck, the other end of the air outlet pipe is introduced into a trough arranged on the shell, and the gate valve is arranged in the middle of the air outlet pipe; and an air inlet pipe is arranged in the middle of the dynamic chuck, one end of the air inlet pipe is positioned in the middle of the end face of the dynamic chuck, the other end of the air inlet pipe is communicated with the gas source through the other electromagnetic reversing valve, and the air inlet pipe is communicated with a gas pressure meter. The device can be used for detecting the cut-off performance of the gate valve and the air tightness of a cavity under the condition that the gate valve to be detected is not soaked into water, so that the appearance of the gate valve is effectively protected.
Description
technical field [0001] The invention relates to the technical field of gate valve detection, in particular to a device for detecting the airtightness of a gate valve. Background technique [0002] Traditionally, when testing the air tightness of gate valves, water testing is generally used, that is, injecting compressed gas into the cavity of the gate valve and then immersing it in water to observe the bubbles generated in the water to judge whether the air tightness of the gate valve is qualified. First, it will affect the appearance of the gate valve; second, the detection efficiency is low, and the labor intensity of the inspection personnel is high; third, the detection is highly subjective and prone to misjudgment. [0003] On June 4, 2008, an invention patent with the patent number ZL200610149800.5 and the name "A testing device and testing method for testing product airtightness" was published. The testing device includes a seal and has a passage for Seal the opening...
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IPC IPC(8): G01M3/08G01M3/28
Inventor 陈建华郑开省陈世伟郑盛丰陈文恭
Owner FUJIAN HAIYANG VALVE TECH