Fault detection device for check valve of high-pressure diaphragm pump and fault removing method thereof

Abstract

The invention relates to a fault detection device for a check valve of a high-pressure diaphragm pump and a fault removing method thereof, and belongs to the technical field of fault diagnosis. The fault detection device comprises the high-pressure diaphragm pump, a pump inlet valve, a pump outlet valve, four electromagnetic valves, a water inlet pipeline, a water outlet pipeline, a feeding pipeline, a discharging pipeline, a pressure sensor and a controller. The pressure sensor is installed inside a diaphragm chamber. The electromagnetic valves and the pressure sensor are both connected withthe controller through signal lines. According to the fault detection device for the check valve of the high-pressure diaphragm pump and the fault removing method thereof, when a valve clamping faulthappens to the pump inlet valve or the pump outlet valve, the pressure sensor can detect the pressure of the inside of the diaphragm chamber and further transmit the pressure value to the controller in real time. The controller judges specific faulted valves according to a pressure curve graph, the on-off state of each electromagnet valve can be controlled through instructions, and the high-pressure diaphragm pump can be washed automatically. Damage to the high-pressure diaphragm pump can be reduced, the number of times of halting maintenance is decreased, the service life of the high-pressurediaphragm pump is prolonged and industrial production efficiency is improved.

Description

technical field [0001] The invention relates to a fault detection device for a one-way valve of a high-pressure diaphragm pump and a fault elimination method thereof, belonging to the technical field of fault diagnosis. Background technique [0002] High-pressure diaphragm pump is an ideal mechanical equipment for transporting high-corrosion, high-pressure solid and liquid two-phase media. It is developed on the basis of reciprocating piston pumps. A diaphragm is added to isolate the slurry from the piston. It has both piston The pump has the advantages of high head, high concentration, high temperature and high alkalinity, and has new features such as high abrasion resistance of the diaphragm pump itself, long life of wearing parts, easy maintenance, high continuous operation efficiency, low operation cost, high efficiency, energy saving and environmental protection. . When the high-pressure diaphragm pump fails, the entire system will stop working, resulting in serious ec...

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Problems solved by technology

[0003] Aiming at the defects existing in the prior art, the present invention provides a fault detection device and troubleshooting method for a check valve of a high-pressure diaphragm pump, mainly to solve the problem that the valve is stuck by coarse particles or the slurry is deposited in the diaphragm chamber , real-time monitoring of the operating status of the high-pressure diaphragm pump, reducing the damage of the high-pressure diaphragm pump and improving production efficiency

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