Centrifugal pump cleaning device

Abstract

The invention discloses a device for cleaning a centrifugal pump, comprising a cleaning device, a liquid inlet channel of the cleaning device is connected with an outlet end of the centrifugal pump, and a liquid discharge channel of the cleaning device is connected with a sealing device of the centrifugal pump, characterized in that: the The cleaning device is connected with a filter device, a pressure display device and an orifice distribution device, the filter device is close to the outlet end of the centrifugal pump, the orifice distribution device is close to the sealing device of the centrifugal pump, and the cleaning device is provided with a main valve The main valve body is located between the outlet end of the centrifugal pump and the filter device, and the auxiliary valve body is located between the pressure display device and the orifice distribution device. The invention has a good cooling effect on the sealing device, and can prevent particles and impurities from depositing on the sealing surface of the dynamic and static rings, effectively protect the sealing surface of the dynamic and static rings, reduce wear, and improve the sealing effect, thereby ensuring the normal and stable operation of the centrifugal pump.

Description

technical field [0001] The invention relates to the technical field of centrifugal pumps, in particular to a device for cleaning centrifugal pumps. Background technique [0002] A centrifugal pump is a device that uses the centrifugal force generated by the impeller of the rotating pump to drive the rotation of the fluid to complete the fluid delivery. [0003] The basic structure of a centrifugal pump consists of six parts, namely the impeller, pump body, pump shaft, bearings, seal rings and stuffing box. Among them, the impeller is the core part of the centrifugal pump. Its speed is higher than that of the centrifugal pump, and its force is large. The blades on the impeller play a major role. The impeller must pass the static balance test before assembly. The inner and outer surfaces of the impeller are required to be smooth to reduce the frictional loss of water flow. The pump body is also called the pump casing, which is the main body of the water pump. It plays a rol...

AI Technical Summary

Problems solved by technology

The main manifestations are: the gap between the sealing surface is too large during installation, and the flushing fluid has no time to take away the heat generated by the friction pair; the flushing fluid leaks from the gap of the sealing surface, causing the end surface to be overheated and damaged; the liquid medium vaporizes and expands, causing the two ends to be vaporized and expanded When the two sealing surfaces are forced to fit together, the lubricating film will be destroyed and the surface of the end surface will be overheated; in addition, with the arrival of the rainy season, the sediment mixed with the river water will increase, which will cause greater wear on the sealing surface of the dynamic and static rings, which will cause Seal failure