A right-angle check valve for high-temperature and high-pressure gas

Abstract

The invention discloses a right-angle one-way valve for high-temperature high-pressure gas. The right-angle one-way valve comprises a valve body, a valve element, a connector, a spring, a compression nut, thermal insulation pads, a spring seat, a guide block, a first sealing pad, a second sealing pad and a gasket. The valve body is provided with three ports. The connector is fixedly connected with the third port of the valve body. The shape of the connector is similar to a cylinder. The connector is provided with a cavity in the middle. The valve element comprises a valve rod and a ball head part. The ball head part of the valve element is arranged in the cavity formed by the third port and the second port. The valve rod of the valve element penetrates the central through hole of a guide block and is abutted against the spring seat. One thermal insulation pad is adhered to the spring seat, and the other thermal insulation pad is adhered to the compression nut. The thread of the compression nut is fixed at one end of the connector. The spring is arranged between the two thermal insulation pads. The first sealing pad is arranged between the stepped face of the inner wall of the valve body and the stepped face of the outer wall of the connector. The second sealing pad and the gasket sleeve the valve rod. The right-angle one-way valve is compact in structure, capable of avoiding high-temperature failing of the spring, and reliable in work.

Description

technical field [0001] The invention belongs to the technical field of one-way valves, in particular to a right-angle one-way valve for high-temperature and high-pressure gas. Background technique [0002] As an important part of the fluid direction control valve, the one-way valve plays an important role in the connection or disconnection of the fluid. The one-way valve only allows the fluid to flow in one direction in the system, but not the reverse flow. Its main performance requirements When the fluid passes through, the pressure loss should be small, when the reverse direction is blocked, the sealing performance should be better, and the action should be sensitive. [0003] However, with the development of high-temperature and high-pressure systems, the springs of traditional check valves are exposed to high-temperature media, and the springs will become unstable as the temperature rises, or even fail, causing the check valves to fail to work. The existing right-angle ...

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Problems solved by technology

[0003] However, with the development of high-temperature and high-pressure systems, the springs of traditional one-way valves are exposed to high-temperature media, and the springs will become unstable as the temperature rises, or even fail, causing the one-way valves to fail to work. The existing right-angle Due to the design and other reasons, the check valve is not stable and reliable enough to meet the needs of high temperature and high pressure systems.

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