Cold energy utilization system and method based on LNG refrigerator car

CN119459261APending Publication Date: 2025-02-18CNOOC GAS & POWER GRP
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Patent Information

Application Number
CN202411913320.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-02-18

AI Technical Summary

Technical Problem

The existing LNG refrigerated truck cooling energy supply has problems of insufficient LNG cooling energy and unstable supply.

Method used

A cooling energy utilization system based on LNG refrigeration truck is adopted, which includes existing LNG pipelines and newly added refrigeration main circulation circuits, fan coil defrosting circuits, immersed cooling heat exchangers and ammonia circulation branches. Through the collaborative work of these components, the circulating flow of LNG media and coolant is optimized, the cooling energy supply of the fan coil is enhanced, and the cooling energy supply is ensured to be stable through the cooling storage function.

Benefits of technology

It effectively initially compensates for the cooling energy demand of fan coils when LNG is insufficient, significantly enhances the cooling energy supply of fan coils, avoids the reduction of heat exchange efficiency, and ensures the stability of the cooling energy supply through the cooling storage function.

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Abstract

The invention relates to a cold energy utilization system and method based on an LNG refrigerator car, the system comprises a refrigeration main circulation loop, the refrigeration main circulation loop comprises a cooling heat exchanger, a fan coil, a buffer tank and a refrigeration circulation pump, and an outlet of the buffer tank communicates with an inlet of the refrigeration circulation pump through a pipeline; an outlet of the refrigeration circulating pump is communicated with an inlet of the heat release side of the cooling heat exchanger through a pipeline, an outlet of the heat release side of the cooling heat exchanger is communicated with an inlet of the fan coil through a pipeline, an outlet of the fan coil is communicated with an inlet of the buffer tank through a pipeline, and therefore the refrigeration main circulation loop is formed. Wherein an outlet of the LNG storage tank is communicated with an inlet of the heat removal side of the cooling heat exchanger through a pipeline, an outlet of the heat removal side of the cooling heat exchanger is communicated with an inlet of the heat removal side of the LNG heat exchanger through a pipeline, and an outlet of the heat removal side of the LNG heat exchanger is communicated with a gas inlet of the gas engine through a pipeline.
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Citation Information

Cited By

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