A centrifugal water pump with online adjustable blades

A centrifugal pump and blade technology, applied in the field of blade online adjustable centrifugal pump, can solve problems such as changing the operating parameters of the centrifugal pump, and achieve the effect of low energy consumption and energy saving
CN103185025BActive Publication Date: 2015-08-19长沙山水节能研究院有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
长沙山水节能研究院有限公司
Publication Date
2015-08-19

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Abstract

The invention discloses a centrifugal water pump with on-line adjustable vanes. The centrifugal water pump comprises a vane wheel arranged in a pump body by a rotation shaft, wherein the vane wheel comprises a hub, a cover plate and a plurality of vanes arranged on the hub, each vane is divided into two parts, namely a fixed vane on the hub and a moving vane near a peripheral outlet of the vane wheel, each moving vane is hinged on the cover plate, a plurality of radial oil cylinder jacking devices respectively matched with the moving vanes are arranged on the rotation shaft, one end of the rotation shaft is provided with a pipeline and is communicated with the oil cylinder jacking devices, and the pipeline is communicated with an externally hydraulic system through a rotary joint by the end. The centrifugal water pump disclosed by the invention has the characteristics that by adjusting the outlet angle of each vane of the centrifugal pump in an on-line manner, the diameter of the vane wheel can be changed, and thus performance parameters of the water pump are changed, the flux and the head of delivery are improved or reduced, and the problem that the vane angle of the existing centrifugal pump can not be adjusted so as to change operating parameters is solved.
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Description

technical field

[0001] The invention belongs to water pumps, in particular to a centrifugal water pump with online adjustable blades. Background technique

[0002] With the change of ambient temperature or production load, the circulating water system of industrial and mining enterprises often needs to change the flow and pressure required for production. Technical experts have been developing a certain technology, hoping to meet this requirement.

[0003] The parameter adjustment during the operation of the centrifugal water pump has always been a key issue in the operation of the pump. In the past, valve adjustment and motor speed regulation (including reducer adjustment, coupler speed regulation, viscous coupling speed regulation, motor magnetic pole logarithm speed regulation, motor step-down speed regulation, motor internal feed speed regulation, etc.) were used respectively. method, but the energy consumption of the valve adjustment method in the above method is too l...

Claims

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