Testing method and testing device for hydraulic model combination of rotary power pump

一种回转动力泵、水力模型的技术，应用在机械设备、径向流动泵、用于弹性流体的泵送装置的部件等方向，能够解决费工费时、叶轮和导叶不能替换等问题

Active Publication Date: 2020-10-02
SEC KSB NUCLEAR PUMPS & VALVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The advantages of this method are similar to those of method three, and it can solve the problem that impellers and guide vanes cannot be replaced at different stages in method three, but this method needs to design and manufacture a new single-stage model pump, and in some In some cases, in order to meet the interface matching requirements during replacement, without changing the hydraulic model of the impeller and guide vane, it is necessary to adapt the design of the interface matching size, which is labor-intensive and time-consuming

Method used

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Embodiment Construction

[0050] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention discloses a testing method and testing device for a hydraulic model combination of a rotary power pump, and belongs to the technical field of rotary power pump tests. According to the testing method, an existing multi-stage rotary power pump is used as an initial to-be-tested prototype, the initial to-be-tested prototype is transformed according to a to-be-tested combination of n to-be-tested hydraulic models, and thus n to-be-tested prototypes M is obtained; the n to-be-tested prototypes M is subjected to flow-lift testing, the obtained flow Q<j>-lift H<iQj> data are processed to obtain an equation group, and a flow-lift curve of the combination of the n to-be-tested prototypes can be obtained by processing the solution results of the equation group; and because most of parts in the existing multi-stage rotary pump can be utilized, the parts needing to be redesigned are few, and the test cost can be greatly reduced; and the data processing method is simple, the testing efficiency is advantageously improved, and the testing results are quickly obtained.

Description

technical field [0001] The invention relates to the technical field of rotary power pump tests, in particular to a test method and test equipment for a hydraulic model combination of rotary power pumps. Background technique [0002] In order to design a rotary power pump that meets the hydraulic requirements of multiple working conditions, two or more hydraulic model combinations are generally selected. The hydraulic model combination is for a single impeller and its matching guide vane. Therefore, each The flow-head curve of hydraulic model combination is the key to design high-quality rotary power pump. [0003] In order to obtain the flow-head curve of each hydraulic model combination, the following four methods are generally used in the prior art: [0004] Method 1: Similar design method, design and manufacture multiple single-stage model pumps according to a certain size ratio. [0005] This method needs to design the impeller and guide vane (or volute) into reduced-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D15/00F04D1/08F04D29/00
CPCF04D1/08F04D15/00F04D15/0088F04D29/007
Inventor 王宗智孙艳红陈广福
Owner SEC KSB NUCLEAR PUMPS & VALVES
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