Backhoe type blade micro-lift pump device

Abstract

The invention discloses a backhoe type blade micro-lift pump device, and belongs to the technical field of hydraulic engineering machinery. The backhoe type blade micro-lift pump device is structurally formed by connecting a bottom plate, a left trough plate, a right trough plate, an impeller, a motor and pump shaft components. The structure is novel, conventional straight plate type blades are changed into backhoe type blades, and a hub ratio and the installation method of the blades are changed. Original unstable power such as water flow and wind power is changed to stable power provided bythe motor, so that the backhoe type blade micro-lift pump device is able to be stably operated at a lift of 0-2 meters. The number of the blades of the device and the hub ratio can be adjusted according to the actual engineering changes. The impeller is in the form of a drum, the device has no rim, water and air can be in direct contact, a free fluid surface exists, no negative pressure occurs during operation, and no cavitation occurs, so that the pump performance during the operation under extremely low lift working conditions is improved, drainage in low-lying areas and low lift irrigationcan be achieved, and the backhoe type blade micro-lift pump device can further be used as a flowing water device to achieve urban anti-pollution and pollution control and has important academic significance and significant economic benefits.

Description

technical field [0001] The invention belongs to the technical field of water conservancy engineering machinery, and relates to a head pump device, in particular to a backhoe-type blade micro-lift pump device. Background technique [0002] A water pump is a machine that converts and transmits energy. The power machine drives the water pump to run, and the mechanical energy of the power machine is converted into the kinetic energy and potential energy of the water through the water pump, that is, the energy of the power machine is transferred to the water to achieve the purpose of lifting water and increasing water pressure. Therefore, the water pump is also a kind of water lifting machine. Water pumps are widely used in agricultural irrigation and drainage, for agricultural production and disaster reduction and prevention services, and are also widely used in industrial enterprises and urban construction, serving industrial production, urban construction, flood control and d...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the water inlet and outlet channels of the existing low-lift pumps are all closed structures, the structure of the pump device is complex, the hydraulic loss is relatively large, the pressure on the suction surface of the blade is low, cavitation is easy to occur, the efficiency of the pump device is low, and the operation of the unit is not good. In order to overcome the shortcomings of stability and other defects, a backhoe blade micro-lift pump device is proposed, which optimizes the structure of the micro-lift pump device, which can improve the performance of the pump under extremely low-lift conditions, and can realize both waterlogging in low-lying areas and low-lift irrigation , it can also be used as a running water appliance to realize urban anti-pollution and pollution control, which has important academic significance and great economic benefits

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