Liquid inlet one-way valve of high-pressure pump

Abstract

The invention belongs to the technical field of one-way valves, and particularly relates to a high-pressure pump liquid inlet one-way valve which comprises a one-way valve body, a liquid inlet end, a filtering mechanism, a liquid outlet end and a control and alarm device. And the control and alarm device is used for automatically giving an alarm when the flow detection device detects that the oil flow is lower than a limit value. The filtering mechanism is additionally arranged on an existing one-way valve structure, oil liquid in the liquid inlet end can be filtered, a detachable connection mode is adopted, assembling is easy, meanwhile, the filtering net can be cleaned or replaced under the condition that the whole valve device does not need to be disassembled, and the flow detection device is arranged at the liquid outlet end, so that the filtering effect is improved. The flow of oil can be monitored in real time, the problem of blockage in the valve can be found in time, a flow monitoring system is formed in cooperation with a control and alarm device, and automatic alarm is conducted when it is detected that the oil flow is lower than a limit value.

Description

technical field [0001] The invention relates to the technical field of one-way valves, in particular to a one-way valve for liquid inlet of a high-pressure pump. Background technique [0002] The one-way valve is that the fluid can only flow along the water inlet, but the medium at the water outlet cannot flow back, commonly known as a one-way valve. One-way valve is also called check valve or check valve. Used in hydraulic systems to prevent reverse flow of oil flow, or used in pneumatic systems to prevent reverse flow of compressed air. There are two types of check valves: straight-through and right-angle. The straight-through check valve is installed on the pipeline with a threaded connection. Right-angle check valves are available in three forms: threaded connection, plate connection and flange connection. [0003] A one-way valve generally includes a valve body, a valve core and a spring, and the spring provides a fixed opening pressure. Although the existing high-...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a high-pressure pump liquid inlet check valve, which solves the problem that the existing high-pressure pump liquid inlet check valve lacks an oil filter mechanism in the above-mentioned background technology, and cannot filter the inlet valve. The contaminated oil in the body is filtered, which will easily lead to blockage of the valve core, affect the normal operation of the system, and even lead to failure of subsequent equipment. The corresponding lack of flow monitoring function makes it impossible to detect blockage in the valve body in time

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