Low-temperature high-pressure hydrogen nondestructive filling system

By utilizing a low-temperature, high-pressure hydrogen non-destructive refueling system with multi-stage heat exchange and refrigeration circuit design, the problem of hydrogen loss during low-temperature, high-pressure hydrogen storage has been solved, achieving efficient and safe hydrogen preparation, storage, and refueling, thus meeting the needs for high-quality utilization and widespread application.

CN118167916BActive Publication Date: 2026-06-23TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Filing Date
2023-12-13
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing low-temperature high-pressure hydrogen storage technologies suffer from hydrogen loss during preparation, storage container precooling, and refueling processes, and also have high refueling rates and energy consumption.

Method used

The system employs a low-temperature, high-pressure hydrogen non-destructive refueling system, which includes a buffer tank, an external purifier, a compressor unit, a cold box, a low-temperature, high-pressure storage tank, a liquid hydrogen pump, and a heat exchanger. Through multi-stage heat exchange and refrigeration circuit design, it ensures that hydrogen is not lost during preparation, storage, and refueling, thereby improving the refueling rate and reducing energy consumption.

Benefits of technology

This technology enables lossless production, storage, and refueling of cryogenic, high-pressure hydrogen, improving transport density and refueling rate, reducing energy consumption and cost, while ensuring system stability and safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118167916B_ABST
    Figure CN118167916B_ABST
Patent Text Reader

Abstract

The low-temperature high-pressure hydrogen lossless filling system provided by the application mainly comprises the preparation of low-temperature high-pressure hydrogen, the precooling of a low-temperature high-pressure storage tank and the filling of the low-temperature high-pressure storage tank. The preparation process of the low-temperature high-pressure hydrogen comprises two forms, one of which uses normal-temperature gaseous hydrogen as a gas source, and the other of which uses normal-pressure liquid hydrogen as a gas source. The filling system can ensure that there is no loss of hydrogen during the preparation, precooling and filling of the low-temperature high-pressure hydrogen, improve the transportation density and filling rate, and reduce the filling energy consumption and transportation cost. In addition, the selection of key components and the design of multiple bypasses in the system ensure the stability, efficiency and safety of the operation of the low-temperature high-pressure hydrogen system and guarantee the storage quality of the low-temperature high-pressure hydrogen, which is conducive to the high-quality utilization and wide promotion of the low-temperature high-pressure hydrogen after storage and transportation.
Need to check novelty before this filing date? Find Prior Art