一种利用液化气体储能的深海充电站系统结构及补给方式

By using a liquefied gas energy storage system, the system utilizes the buoyancy of liquid carbon dioxide to float to the surface for refueling, solving the safety and maintenance problems of existing subsea charging stations and realizing a safe, reliable, and low-cost deep-sea charging station system.

CN117246490BActive Publication Date: 2026-07-17CHINA SHIP SCIENTIFIC RESEARCH CENTER

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA SHIP SCIENTIFIC RESEARCH CENTER
Filing Date
2023-09-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing energy storage methods for submarine charging stations, such as batteries, fuel cells, and nuclear power plants, pose safety risks, are highly complex, and are difficult to maintain, leading to increased operating costs and inconvenience due to reliance on underwater operations for resupply.

Method used

The system employs a liquefied gas energy storage system, utilizing chemically stable liquid carbon dioxide as the energy storage medium. The system floats to the sea surface via the buoyancy of the liquefied gas storage tank for reforming and replenishment, avoiding high-risk underwater operations. The system has a compact structure and reliable operation.

Benefits of technology

It achieves deep-sea charging with high safety, reliable operation, and low cost, meeting the needs of unattended operation and reducing the supply and maintenance costs of underwater operations.

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Abstract

一种利用液化气体储能的深海充电站系统结构,包括充电站耐压壳体,所述充电站耐压壳体的内部依次串联有二氧化碳工质换热器、工质膨胀机、二氧化碳膨胀机、发电机和蓄电池,二氧化碳工质换热器还连接工质泵,工质泵与工质膨胀机之间安装有工质加热器,所述二氧化碳工质换热器和二氧化碳膨胀机之间安装有二氧化碳汽化器,所述工质加热器和二氧化碳汽化器均位于充电站耐压壳体的外部,充电站耐压壳体的外部还设置有充电接口和排放阀;所述充电站耐压壳体的外部设置有液化气体储罐,所述液化气体储罐的底部通过对接装置安装有水下绞车,对接装置与水下绞车直接通过导引线缆连接,液化气体储罐与充电站耐压壳体内部之间通过管路连通,管路上安装供气阀,工作可靠,成本低。
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