Durability testing device and testing method of solid-liquid two-phase flow pump

Abstract

The invention relates to a durability testing device and testing method of a solid-liquid two-phase flow pump. The testing device is mainly formed by a major loop, a temperature regulation device, a suction height regulation mechanism, a flow regulation device and the like. In an abrasion test of the solid-liquid two-phase flow pump, a bypass circulation system is led in, and the fact that solid particles in media do not deposit is guaranteed. The principle that the open area is reduced by means of elastic deformation of a rubber hose is used, the system flow is conveniently and fast regulated, and abrasion of the device is reduced. Based on an automatic deposition layering law of two-phase flow media, the regulation device at the position of a suction pipe at the inlet of the pump is designed, and the problem of obtaining two-phase flows of different concentrations is resolved. Aluminum alloy radiating fins are welded on the external of a blending tank to meet radiating requirements of a reliability test. According to the durability testing method of the of the solid-liquid two-phase flow pump, an inlet pressure and outlet pressure collection device of a two-phase flow pump system is designed, real-time monitoring and collection of pump pressure are achieved, and the relation between abrasion capacity and performance of an impeller, a pump body and other flow passage components is analyzed through a weighing method or a reverse three-dimensional reproduction technology.

Description

technical field [0001] The invention relates to a solid-liquid two-phase flow pump durability test device and a test method thereof, which solve the wear problem of test pipelines and the like, and belong to the field of pump test devices. Background technique [0002] Slurry pump is the key equipment for conveying solid-liquid two-phase flow medium. Because it can transport two-phase fluids such as different solid particle densities, particle sizes, volume concentrations, and hardness, and the transported solid particles have a large radius range, and the solid-liquid mixed fluid has a high flow rate and a large flow rate, it is widely used in mining, metallurgy, Coal, water power, electric power, transportation, papermaking, environmental protection and other industries. However, because the operating conditions of the slurry pump are generally harsh, the damage of parts is extremely serious, and the wear problem of the pump is particularly prominent, so the main content ...

AI Technical Summary

Problems solved by technology

However, the valve in this test bench solves the problem of its small opening by connecting several gate valves in series, but it does not essentially solve the problem of wear, and the test bench does not consider the influence of temperature on the test bench, and does not fully Utilizing the sedimentation effect of the slurry itself, there are obvious defects, and it is not suitable for long-term reliability tests

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