Hydrogen absorbent evaluation device for cryogenic vessel

Abstract

A hydrogen absorbent evaluation device for a cryogenic vessel belongs to the technical field of hydrogen absorbent detection and evaluation. The problem that the hydrogen removal effect of the hydrogen absorbent is difficult to evaluate in the prior art is solved. The device is characterized by comprising a hydrogen generator, a buffer container, a low-temperature vacuum heat insulation storage tank, a sample reaction kettle, a temperature and pressure acquisition system and a vacuum unit, wherein the hydrogen generator, the buffer container, the low-temperature vacuum heat insulation storagetank and the sample reaction kettle are connected in sequence; the vacuum unit is respectively connected with the buffer container, the low-temperature vacuum heat insulation storage tank and the sample reaction kettle and is used for vacuumizing the buffer container, the low-temperature vacuum heat insulation storage tank and the sample reaction kettle; and the temperature and pressure acquisition system is respectively connected with the low-temperature vacuum heat insulation storage tank and the sample reaction kettle and is used for acquiring temperature data and pressure data of the low-temperature vacuum heat insulation storage tank and the sample reaction kettle. According to the hydrogen absorbent evaluation device disclosed by the invention, hydrogen absorbent production enterprises and low-temperature vacuum equipment production enterprises can evaluate and detect the performance of the hydrogen absorbent.

Description

technical field [0001] The invention relates to a hydrogen absorbing agent evaluation device, in particular to a hydrogen absorbing agent evaluation device for cryogenic containers, and belongs to the technical field of hydrogen absorbing agent detection and evaluation. Background technique [0002] Modern industry, national defense, aviation and scientific research work have a great demand for cryogenic liquids, and they have been developing rapidly with an annual growth rate of 10% in recent decades. For the convenience of application, cryogenic liquid must be stored and transported, and the equipment for storing and transporting various cryogenic liquids is referred to as cryogenic container. The key of the cryogenic container lies in its thermal insulation performance and specific structural design, and the hydrogen remaining in the interlayer is the main reason for the decrease of the vacuum degree of the cryogenic container. There are three main types of hydrogen abso...

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Problems solved by technology

[0005] However, in the field of low-temperature storage and transportation, PdO occupies the main hydrogen absorbing agent market at this stage. However, PdO is not only expensive, but also has a small unit adsorption capacity, which is deeply affected by the market and fluctuates greatly. tank safe

Cryogenic container manufacturers try various hydrogen absorbers in order to replace PdO and reduce costs. However, they have not tried any new hydrogen absorbers on a large scale. The service life plays a decisive role. Before fully grasping the performance of the hydrogen absorbing agent, it cannot be used easily.

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