High-pressure high flow fatigue test system for bearing equipment

Abstract

The invention relates to the technical field of pressure equipment tests, and aims at providing a high-pressure and large-flow fatigue test system of pressure equipment. The system comprises a low-pressure liquid supply device, a pressure lifting device, a gas drive device and a measurement control system; wherein, the low-pressure liquid supply device comprises a water tank, a filter, a low pressure pump driven by a motor and a high-precision filter which are communicated through a low-pressure pipeline. The system has the advantages of being particularly applicable to fatigue tests of large-volume high-pressure equipment, having high output pressure and large flow, being capable of determining a fatigue life within a short period of time; having a large output pressure range and stable pressure, being widely applicable to the fatigue tests of low-pressure, medium-pressure and high-pressure vessels; being capable of freely adjusting pressurization rate according to volume and test requirements of a tested vessel; having relative lower noise, lower cost, convenient operation and the like.

Description

technical field [0001] The invention relates to the technical field of pressure-bearing equipment testing, in particular to a high-pressure and large-flow fatigue test system for pressure-bearing equipment. Background technique [0002] With the advancement and development of high-pressure technology, high-pressure vessels have been increasingly widely used in petroleum, chemical and new energy fields. For high-pressure vessels subjected to alternating loads, fatigue failure will occur during long-term use. Due to the high working pressure of the high-pressure container and the large storage energy of the equipment, once fatigue damage occurs, it will pose a great threat to personal safety. Therefore, in order to ensure the performance of high-pressure vessels subjected to alternating loads, it is necessary to carry out fatigue tests, so that the fatigue life of high-pressure vessels can be measured in a short period of time, and the necessary basis for the design of vessel...

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Problems solved by technology

Chinese patent ZL200620102510.0 provides a multifunctional high-voltage equipment safety performance testing device, which uses pneumatic liquid pressurization technology, and can perform pressure test, fatigue test, and blasting test detection methods, but its output flow is very small, which is difficult to meet Fatigue test requirements for large-volume high-pressure vessels

Chinese patent CN200410155199.1 provides a pressure vessel hydraulic fatigue test system, which is a fatigue test device suitable for higher pressures composed of oil circuit pressurization, pressure maintaining, pressure relief devices and measurement control systems. Pressure of high pressure vessels, will no longer apply

Chinese patent ZL02203366.1 provides a pressure vessel fatigue test device, which uses compressed air as the pressure medium, mainly for the fatigue detection of the inner tank of the solar water heater, and the output pressure is very low

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