Friction wear testing device for high-pressure seawater environment

Abstract

The invention relates to the field of mechanical friction wear, and discloses a friction wear testing device for a high-pressure seawater environment. The device comprises a loading system, a pressuresystem and a driving system, wherein the loading system comprises a loading part, a loading platform, a magnet magnetic force loader and a fixing pin; the pressure system comprises a pressure meter,a nitrogen gas tank, an air inlet valve, a pressure release valve and a high-pressure kettle; the driving system comprises a rotating disc, a magnet magnetic force driver and a motor; the magnet magnetic force loader comprises an electromagnet ring, a magnet rod and a loading shaft; and the magnet magnetic force driver comprises an annular magnet coupling, a rotating shaft and a driving shaft. Thefriction wear testing device for the high-pressure seawater environment can simulate the environment of a real seawater desalination pump body, has certain reliability, is reasonable in structure, and has wide testing application prospects and scientific research values.

Description

Technical field [0001] The invention relates to the field of mechanical friction and wear, in particular to a friction and wear test device in a high-pressure seawater environment. Background technique [0002] Friction and wear tests can compare the wear resistance of materials. The wear forms include abrasive wear, adhesive wear, contact fatigue wear, fretting wear, cavitation, etc. Usually, more than one form of wear occurs under actual operating conditions. Compared with other tests, the wear test is more affected by factors such as load, speed, temperature, surrounding media, surface roughness, lubrication and coupling materials. The test conditions should be as consistent as the actual conditions to ensure the reliability of the test results . [0003] With the rise of seawater desalination projects, the use of desalination pumps and energy recovery integrated machines, etc., the research on the friction and wear of the key friction pair materials of the pump body used in se...

AI Technical Summary

Problems solved by technology

At present, most of the widely used friction testing machines are equipment that can directly control test conditions such as load, rotating speed, and grinding distance. The friction and wear testing machine disclosed in the patent application with the application number CN201721513206. When simulating the friction performance of a friction pair in a high-pressure seawater environment, the existing equipment cannot provide realistic test conditions. Generally, it is solved by immersing the friction pair in a seawater environment, which is very different from the environment of a real seawater desalination pump body. difference, which leads to inaccurate friction test data, which seriously affects the research on the friction mechanism of friction partners.

[0004] In the patent application with the application number CN201620222887.3, an experimental equipment for studying the friction test in the seawater environment is proposed. This utility model replaces the manual spraying of seawater on the friction surface to realize the friction test in the seawater environment. This technical solution does not simulate Friction and wear conditions under high pressure seawater in vacuum environment

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