Low-temperature safety valve
A safety valve and low-temperature technology, applied in safety valves, balance valves, valve devices, etc., can solve problems such as leakage and insufficient sealing of safety valves, and achieve the effects of prolonging service life and avoiding economic losses
Active Publication Date: 2012-12-12
ZHANGJIAGANG FURUI SPECIAL EQUIP CO LTD
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Problems solved by technology
When ordinary low-temperature safety valves are in use, sometimes the garbage in the pipeline will enter the valve body after the disc jumps, causing the safety valve to fail to seal sufficiently and cause leakage
Method used
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Embodiment Construction
[0011] The specific content of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0012] Such as figure 1 , figure 2 As shown, a low-temperature safety valve includes: a valve body 1, a valve flap 3 arranged in the valve body 1, an adjusting block 2 arranged at the liquid outlet end in the valve body 1, and an adjusting block 2 arranged between the valve flap 1 and the adjusting block 2 The two ends of the valve body 1 are respectively provided with connecting threads 11, the valve body 1 is provided with a valve hole 12 passing through the valve body 1, the valve hole 12 is provided with a disc stop surface 13, and the adjustment block 2 is provided with There is an axial through hole 21, the liquid inlet end of the valve disc 3 is provided with a blind hole 31, the bottom of the wall of the blind hole 31 is uniformly provided with radial guide holes 32, and the liquid inlet end of the valve disc...
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The invention discloses a low-temperature safety valve, which comprises a valve body, a valve clack arranged in the valve body, an adjusting block arranged at a liquid outlet end in the valve body, and a spring arranged between the valve clack and the adjusting block, wherein a valve hole running through the valve body is formed in the valve body; a valve clack stopping surface is arranged on thevalve hole; the liquid inlet end of the valve clack is provided with a blind hole; the periphery of the bottom part of the blind hole wall is uniformly provided with radial flow guide holes; the liquid inlet end of the valve clack is provided with a stopping step; a sealing ring is arranged on the stopping step; the middle part of the valve clack is provided with a radial through hole; the liquidoutlet end of the valve clack is provided with a liquid outlet hole communicated with the radial through hole; the liquid outlet hole of the valve clack and an axial through hole of the adjusting block are provided with a spring positioning step surface respectively; and a blind hole liquid inlet of the valve clack is provided with a filter screen. Because the blind hole liquid inlet of the valveclack of the safety valve is provided with the filter screen to hold up garbage in a pipeline, the safety valve can be effectively sealed after taking off, and then the service life of the safety valve is prolonged, and the economic losses caused by gas leakage are avoided.
Description
technical field [0001] The invention relates to a low temperature safety valve. Background technique [0002] Cryogenic safety valves are used in various low-temperature pipelines. When the low-temperature gas in the low-temperature pressure vessel pipeline exceeds a certain rated value, the low-temperature safety valve can be automatically opened to discharge the gas, thereby achieving the purpose of pressure relief and making the pipeline And the pressure in the low-temperature container is always kept in a safe range to ensure the safety of various productions. When ordinary low-temperature safety valves are used, sometimes the garbage in the pipeline will enter the valve body after the valve disc jumps, causing the safety valve to fail to seal sufficiently and cause leakage. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a cryogenic safety valve that can effectively seal after take-off. [0004] In ord...
Claims
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IPC IPC(8): F16K17/04F16K51/00B01D35/04
Inventor 胡晨曦薛华汤培峰曹晓强
Owner ZHANGJIAGANG FURUI SPECIAL EQUIP CO LTD