A high-strength explosion-proof valve
A high-strength, valve-based technology, applied in valve devices, safety valves, balance valves, etc., can solve the problems of slow release of shock pressure and affect safety, and achieve the effect of improving safety and explosion-proof performance
Active Publication Date: 2021-12-21
NANTONG CHANGJIANG VALVE MFG
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Problems solved by technology
[0003] The explosion-proof safety valve plays a role of safety protection in the system. When the system pressure exceeds the specified value, the safety valve opens to discharge part of the gas / fluid in the system into the atmosphere / pipeline, so that the system pressure does not exceed the allowable value, thus ensuring that the system does not Accidents occur due to excessive pressure. However, in many pipelines, when the flow rate changes or the material is initially introduced, the internal pressure changes and causes an instant impact on the explosion-proof valve. With the impact of the pressure, the valve releases the pressure slowly. Make the impact pressure release slowly, affecting safety
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[0023] Embodiments of the present patent are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are only used for explaining the patent, and should not be construed as limiting the patent.
[0024] In the description of this patent, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this patent and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, be constructed, ...
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The invention discloses a high-strength explosion-proof valve, which relates to the technical field of valves; specifically, it includes an expansion shell, a sealing end cover, a valve body and an adjusting end cover, and the valve body is installed between the sealing end cover and the adjusting end cover. And the sealing end cover is fixedly installed on the top of the expansion shell, and the two ends of the valve body are respectively provided with an inlet flow channel and an outlet flow channel, and a pressure relief chamber is arranged between the inlet flow channel and the outlet flow channel, and the discharge The top of the pressure chamber is provided with a regulating chamber. In the present invention, the pressure relief valve core is lowered, and the medium is guided to the outlet channel for pressure relief, and a preliminary explosion-proof pressure relief operation is performed. When the pressure of the medium continues to rise, the internal pressure of the pressure relief chamber continues to increase, thereby driving the pressure relief valve core to continue to drop. After contacting the limit seat, the medium enters the expansion shell, and the pressure enters the confluence cavity from the pressure discharge pipe to lift the movable valve core, and then releases the medium pressure a second time, effectively improving the explosion-proof performance of the valve and improving safety. sex.
Description
technical field [0001] The invention relates to the technical field of valves, in particular to a high-strength explosion-proof valve. Background technique [0002] The safety valve is a special valve whose opening and closing parts are in a normally closed state under the action of external force. When the medium pressure in the equipment or pipeline rises above the specified value, it discharges the medium to the outside of the system to prevent the medium pressure in the pipeline or equipment from exceeding the specified value. . Safety valves are automatic valves, which are mainly used in boilers, pressure vessels and pipelines. The control pressure does not exceed the specified value, which plays an important role in protecting personal safety and equipment operation. Explosion-proof safety valves are widely used in coal chemical industry, petrochemical industry, rubber, Papermaking, pharmaceutical and other pipelines. [0003] The explosion-proof safety valve plays a...
Claims
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IPC IPC(8): F16K17/04F16K17/06
CPCF16K17/044F16K17/06
Inventor 王世伟
Owner NANTONG CHANGJIANG VALVE MFG