Liquid cargo containment system and maintenance method

By using the structural design of the main shielding layer, the secondary shielding layer and the insulating layer in the liquid natural gas storage tank, combined with the temperature and pressure differential detection unit, the precise monitoring of liquid leakage is achieved, and the problems of false alarms and inefficiency in the existing technology are solved.

CN120385033AActive Publication Date: 2025-07-29SINOTECH ENERGY CO LTD
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Patent Information

Application Number
CN202510884849.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-30
Publication Date
2025-07-29
Estimated Expiration
2045-06-30

AI Technical Summary

Technical Problem

Leak detection in existing liquid natural gas storage tanks has problems of errors and inefficient detection. Conventional monitoring methods are prone to pressure fluctuations due to other factors and lead to false alarms.

Method used

The structural design of the main shielding layer, the secondary shielding layer and the insulating layer is adopted, and combined with the first branch pipe, the second branch pipe and the detection pipeline, the first temperature monitoring unit, the second temperature monitoring unit and the first pressure differential detection unit are respectively arranged. Through the dual monitoring of the temperature and pressure of the peripheral temperature and pressure of the film tank, accurate leakage detection is achieved.

Benefits of technology

Ensure accurate monitoring of liquid leakage, avoid false alarms caused by other factors, and improve the accuracy and efficiency of detection.

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Abstract

The invention discloses a liquid cargo containment system and a maintenance method, and belongs to the technical field of natural gas storage, the liquid cargo containment system comprises a main shielding layer, a secondary shielding layer, an insulating layer and a detection pipeline, one end of the detection pipeline is connected with a gas input pipeline, the other end of the detection pipeline is provided with a first branch pipe and a second branch pipe, and the first branch pipe extends between the main shielding layer and the secondary shielding layer; the first branch pipe extends into the insulating layer, the second branch pipe extends into the insulating layer, a first temperature monitoring unit is arranged in the first branch pipe, a second temperature monitoring unit is arranged in the second branch pipe, and a first pressure difference detection unit is further arranged between the first branch pipe and the second branch pipe. Through dual monitoring of the peripheral temperature and pressure of the thin film tank, accurate monitoring of the liquid cargo leakage condition is ensured, and the problem that the liquid cargo leakage condition is misreported due to pressure fluctuation caused by other factors in a conventional monitoring mode is solved.
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