Water erosion experimental facility with/under rotary impact of high-pressure water jet

A technology of high-pressure water jet and experimental device, which is applied in the direction of testing wear resistance, etc., can solve the problem of limited collision speed, and achieve the effects of increasing liquid-solid collision speed, shortening experiment time, and precise control

Active Publication Date: 2011-11-23
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the device changes the collision speed by adjusting the rotation speed of the rotor, which is limited by the maximum rotation speed of the rotor.

Method used

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  • Water erosion experimental facility with/under rotary impact of high-pressure water jet
  • Water erosion experimental facility with/under rotary impact of high-pressure water jet
  • Water erosion experimental facility with/under rotary impact of high-pressure water jet

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The structure and working principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] exist figure 1 Among them, the motor 2 is used as the prime mover, the motor control cabinet 1 is connected with the motor 2, and the motor control cabinet 1 precisely controls the speed, start and stop of the motor 2; the motor 2 is connected with the gearbox 3, and the rotor 4 is driven after changing the speed through the gearbox 3 Rotating, the test piece 5 is installed on the rotor 4 and drives the test piece 5 to rotate at a high speed; the closed cylinder 16 is set on the rotor 4, the rotor 4 is supported by the bearings 7 installed on both sides of the sealed cylinder 16, and the lubricating oil station 6 and The gear box 3 is connected with the bearing 7 of the rotor 4, lubricates and cools the gear box 3 and the bearing 7 to ensure its normal operation; the water tank 9 of the water circulation system is connect...

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PUM

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Abstract

The invention relates to a water erosion experimental facility with the rotary impact of high-pressure water jet. The facility simulates the blade erosion caused by drops in a steam turbine through the collision between high-speed jet and a rotating test piece. The facility mainly comprises a motor and a motor control cabinet, a gear case, a rotor and a test piece, a high-pressure water pump and nozzle pipelines, etc. While the rotor and the test piece rotate at a high speed, the high-pressure water supplied by the high-pressure water pump can generate high-speed jet through the nozzle. And the jet hits the test piece at a speed of the vector difference between the jet and the test piece, so that hitting speed is greatly improved. Thus, the evaluation of the water erosion resistance of the steam turbine blade material within a short period on an experiment table becomes possible.

Description

technical field [0001] The invention relates to a material water erosion experiment device, in particular to a high-pressure water jet rotary impact water erosion experiment device for studying the erosion of materials by water droplets. Background technique [0002] The "water hammer" pressure generated by the impact in the liquid-solid impact problem is the primary cause of material failure, and jets and water droplets show the same characteristics when they hit solids. Patent ZL200710018830.7 is an experimental device for water erosion of steam turbine blades, which is used to study the water erosion in steam turbines, and the erosion caused by the collision between aircraft and raindrops. The collision between the water droplet and the blade in the actual steam turbine is simulated. However, this device changes the collision speed by adjusting the rotating speed of the rotor, and is limited by the maximum rotating speed of the rotor. Contents of the invention [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
Inventor 张荻韩永强谢永慧
Owner XI AN JIAOTONG UNIV
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