Hydrogen storing container hydrogen environment fatigue test system

Abstract

The invention discloses a hydrogen container hydrogen environment fatigue test system. One end of a high pressure hydrogen container is respectively communicated with a test container and a low pressure hydrogen container through an explosion protection pressure reducing valve, a flow regulating control valve, a first normal open stop valve and a test container depressurizing valve; the low pressure hydrogen container is communicated with the other end of the high pressure hydrogen container through a booster pump; a pressure sensor and a cycle recording device are arranged between the first normal open stop valve and an atmospheric valve; the normal open stop valve, a pressure display and a standard pressure gauge are arranged between the test container and the normal open stop valve; one path of an automatic control system operation console is respectively electrically connected with the booster pump and the pressure gauge through an excessive pressure controller; the other path of the automatic control system operation console is electrically connected with the atmospheric valve and the test container depressurizing valve. The high pressure hydrogen in the high pressure container is charged into the test container through the explosion protection pressure reducing valve and the flow regulating control valve, the explosion protection pressure reducing valve is closed when a set pressure is reached, the test container depressurizing valve is opened after maintaining the pressure for a while, and the hydrogen is depressurized into the low pressure container to complete a fatigue test cycle.

Description

technical field [0001] The invention relates to a hydrogen environment fatigue test system of a pressure vessel, in particular to a hydrogen environment fatigue test system of a hydrogen storage container. Background technique [0002] Under the dual factors of the shortage of petroleum resources and the increasingly serious urban environmental pollution, pollution-free hydrogen-powered vehicles have emerged. Vehicles are relatively mature, and their performance and continuation ability have reached the performance of ordinary vehicles. One of the key constraints is that the hydrogen storage and transportation technology has not yet met the requirements of industrialization. At present, there are many hydrogen storage technologies: low-temperature liquefaction, alloy hydrogen storage, high-pressure hydrogen storage, organic hydrogen storage, etc., each with its own advantages and disadvantages. In terms of vehicle hydrogen storage, the currently developed hydrogen-powered v...

AI Technical Summary

Problems solved by technology

Hydrogen-powered vehicles in my country mainly use composite material pressure vessels and steel gas cylinders below 35MPa, which will lead to frequent hydrogen filling and reduce the service life of the system, and the efficiency is not high

Due to the special use occasions of this type of container (repeated filling and discharging of hydrogen, long-term vibration load) and special requirements for safety and reliability (close to people, personal safety must be ensured in accidents and collisions), its fatigue failure Inevitable, but there is no such hydrogen environment fatigue test system for high-pressure hydrogen storage containers at home and abroad

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