A Shaft Type Tubular Flow Pump Apparatus for Model Test

A model test and model pump technology, which is applied to components of pumping devices for elastic fluids, pump devices, non-variable pumps, etc., can solve the problems affecting the stability of pump device performance test data and the difficulty in ensuring installation concentricity , Shafting operation instability and other problems, to achieve the effect of facilitating the comparison of hydraulic performance of the pump device, stable shafting operation, and stable test data

Active Publication Date: 2016-04-27
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large span of the shaft system of the model pump and the difficulty of ensuring the installation concentricity, it is easy to cause the shaft system to run unstable or even vibrate, which significantly affects the stability of the performance test data of the pump device

Method used

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  • A Shaft Type Tubular Flow Pump Apparatus for Model Test
  • A Shaft Type Tubular Flow Pump Apparatus for Model Test
  • A Shaft Type Tubular Flow Pump Apparatus for Model Test

Examples

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Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0044] The purpose of the present invention is achieved like this:

[0045] (1) The shaft type tubular pump device model used for the model test, which adopts a short-axis transmission system, which includes the shaft section 1 of the water inlet channel, the circular platform section 2 of the water inlet channel, the model pump impeller and impeller chamber 3, and the model pump guide vane Body 4, water outlet channel section 5, thrust bearing and bearing seat 6, torque meter 7, belt pulley seat 8, belt pulley 9, drive motor 10, etc., such as Figure 1a , Figure 1b shown;

[0046] (2) Structurally divide the water inlet channel section into a shaft section 1 and a round table section 2. The two are connected by a straight-edge rounded flange 11. The outlet section of section 1 is welded, and the straight-edge rounded flange 11 on one side of the round tab...

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Abstract

The invention discloses a vertical shaft type tubular pump device used for a model test, and belongs to the technical field of water conservancy project pump stations. A short axis transmission system is adopted in a pump device model, a torquemeter, a belt pulley and a belt pulley base are arranged in a vertical shaft of the pump device, and a driving motor of a model pump is arranged above the vertical shaft and connected with the belt pulley in the vertical shaft through a belt; a water inlet flow channel section is structurally divided into a vertical shaft section and a circular truncated cone section, a flange is arranged between the two sections, and a thrust bearing pedestal of a pump shaft of the model pump is installed at the portion, on one side of the circular truncated cone section, of the flange; a model pump assembly is formed by the circular truncated cone section, a model pump impeller chamber and a model pump guide vane body, and two fulcrums of the pump shaft of the model pump are located in the assembly. The vertical shaft type tubular pump device has the advantages that the pump shaft is short, installation concentricity is high, a shaft system operates stably, and test data are stable and high in repeatability, which provides necessary conditions for accurately researching hydraulic characteristics of the vertical shaft type tubular pump device.

Description

technical field [0001] The invention belongs to the technical field of water conservancy engineering pumping stations, in particular to a shaft type tubular pump device used for model tests, which is applied to study the hydraulic characteristics of large shaft type tubular pump devices through the method of model tests. Background technique [0002] Large-scale shaft-type tubular pump devices have the advantages of excellent hydraulic performance, convenient installation and maintenance, and low engineering investment. get more and more applications. In order to study and solve the problems existing in the hydraulic design of shaft type tubular pumps in large-scale low-lift pumping stations and fully improve its hydraulic performance, it is necessary to conduct in-depth research with the help of model tests. The existing shaft type tubular pump device used for model tests adopts a long-axis transmission system; the water inlet tank of the test bench is connected to the sho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D13/06F04D29/40F04D29/046F04D29/043
Inventor 徐磊陆林广陆伟刚梁金栋练远洋施克鑫
Owner YANGZHOU UNIV
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