Axial flow pump guide vane hydraulic design method and device
A technology of hydraulic design and axial flow pump, which is applied to the components, pumps, and calculations of pumping devices for elastic fluids, which can solve the difficulty of expressing the influence of blade geometric parameters on hydraulic performance and limit the development of hydraulic design of axial flow pumps. And other issues
Active Publication Date: 2017-04-19
CHINA AGRI UNIV
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Problems solved by technology
However, it is difficult to clearly express the influence of blade geometric parameters on hydraulic performance and requires a lot of experience. This kind of hydraulic design guided by experience limits the development of hydraulic design of axial flow pumps to a certain extent.
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[0055]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0056] The hydraulic design of the guide vane of the axial flow pump mainly takes the geometric parameters of the blades as the design parameters, and optimizes the hydraulic performance by changing the geometric parameters. However, it is difficult to clearly express the influence of blade geometric parameters on hydraulic performance and requires...
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The invention provides an axial flow pump guide vane hydraulic design method and device. The method includes the steps that design parameter values are selected; corresponding loads are obtained through calculation according to the selected design parameter values; the circumferential average speed circulation parameter is obtained according to the loads, and a guide vane blade wrap angle is calculated according to the circumferential average speed circulation parameter; and a guide vane hydraulic model is obtained according to the guide vane blade wrap angle and a given axial surface runner shape. By means of the technical scheme, effective control over guide vane design results in the design stage can be achieved, the calculated amount is reduced, and dependence on experience is avoided; and the guide vane flowing losses are reduced, and the axial flow pump guide vane hydraulic performance is improved.
Description
technical field [0001] The invention relates to the field of water pump guide vane design, in particular to a hydraulic design method and device for an axial flow pump guide vane. Background technique [0002] Axial flow pump is a pump that transports liquid by the force generated by the blades of the rotating impeller on the liquid. There are several types of vertical, horizontal, inclined and through-flow pumps. Axial flow pumps have an impeller that rotates within the pump casing. Some pump casings are equipped with fixed guide vanes to eliminate the rotational movement of the liquid, further convert the kinetic energy of the fluid into pressure energy, and improve the performance of the guide vanes. The hydraulic design of axial flow pumps cannot be ignored. [0003] At present, the hydraulic design of axial flow pump guide vanes mainly takes the geometric parameters of the blades as the design parameters, and optimizes the hydraulic performance by changing the geometri...
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Login to View More IPC IPC(8): F04D29/54G06F17/50
CPCF04D29/548F05D2240/12G06F30/17
Inventor 杨魏雷晓宇
Owner CHINA AGRI UNIV