Cyclone pump cavitation test device

Abstract

The invention provides a cyclone pump cavitation test device, which comprises a cyclone pump and a reinforcing bracket, wherein the cyclone pump comprises a pump casing, a rear cover plate, an inlet pipe and an outlet pipe; the pump casing comprises a side wall and an end wall, the side wall and the end wall are connected to form a pump chamber, the inlet pipe is connected to the end wall, the rear cover plate is connected to one end of the side wall away from the end wall, the outlet pipe is disposed on the side wall, and the inlet pipe and the outlet pipe are respectively connected to the pump chamber; the reinforcing bracket is sleeved on the outer side of the inlet pipe and is connected to the front end of the pump casing, one end of the inlet pipe away from the pump casing is supported on the reinforcing bracket having a hollowed area for observation; at least part of the end wall is a first visual area, and at least part of the inlet pipe is a second visual area. The device provided by the invention adopts the preparation of the organic glass at least part of the end wall of the inlet pipe and the pump casing to ensure the visualization of the test device, the other part adopts the cast iron to ensure the hardness and wear resistance, and the outer periphery of the inlet pipe is provided with the reinforcing bracket to ensure the overall stability.

Description

technical field [0001] The invention relates to the technical field of cavitation test equipment, in particular to a swirl pump cavitation test device. Background technique [0002] Cavitation includes many complex flow phenomena such as phase transition, unsteady flow, multi-dimensional turbulent flow and compressibility, which will cause problems such as vibration, noise and performance degradation in fluid machinery. When the pump works under cavitation conditions for a long time, some parts of the pump flow parts will be corroded and damaged. This is because the metal surface is strongly impacted by high frequency 600-25000Hz when the bubbles condense, and the pressure reaches 49MPa, resulting in There are pitting and perforation on the metal surface, and cavitation damage is accompanied by various complex effects such as electrolysis and chemical corrosion in addition to mechanical force. Therefore, the cavitation erosion phenomenon in hydraulic machinery such as pumps...

AI Technical Summary

Problems solved by technology

The published patent "Visual test device for measuring cavitation and erosion relationship" (application number: 201610190058.6), the device can induce cavitation in the test section, and can better observe the formation of cavitation groups in the test section , but this device cannot be effectively applied to all hydraulic machinery, such as swirl pumps

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