The invention relates to the technical field of ship and ocean engineering design and manufacturing, in particular to a marine low-pressure carbon dioxide filling system which comprises a waste gas pipe, a branch, a waste gas compressor unit, a first valve, a second valve, a first-stage heat exchanger, a third valve, a fourth valve, a second-stage heat exchanger, a fifth valve, a gas-liquid separator, a sixth valve and a low-pressure CO storage tank. A branch is opened, waste gas in a waste gas pipe enters a waste gas compressor unit, the pipe diameter can be greatly reduced through waste gas compression, the waste gas enters a first-stage heat exchanger through a first valve and a second valve, in the first-stage heat exchanger, liquid LNG cools the waste gas, and water vapor in the waste gas is cooled and filtered out through temperature control; the residual waste gas enters a secondary heat exchanger through a third valve and a fourth valve, gaseous carbon dioxide is cooled into liquid, the liquefaction temperature of nitrogen in the residual waste gas is lower than that of liquid LNG, the nitrogen cannot be liquefied, and the residual waste gas is separated by a gas-liquid separator after passing through a fifth valve; and the final liquid carbon dioxide enters a low-pressure carbon dioxide storage tank through a sixth valve to be stored.

    本发明涉及船舶与海洋工程设计及制造技术领域,尤其为船用低压二氧化碳充装系统,包括废气管、支路、废气压缩机组、第一阀门、第二阀门、一级换热器、第三阀门、第四阀门、二级换热器、第五阀门、气液分离器、第六阀门、低压CO储存罐;打开支路使废气管内部废气进入废气压缩机组,废气压缩可以大大减小管径,废气通过第一阀门和第二阀门进入一级换热器,在一级换热器中,液态LNG冷却废气,通过温度控制,把废气中的水蒸气冷却过滤掉,剩余的废气再经过第三阀门和第四阀门进入二级换热器中,气态二氧化碳冷却成液态,剩下的废气中的氮气液化温度比液态LNG还要低无法液化,经第五阀门后被气液分离器分离出来,最终的液态二氧化碳经过第六阀门进入低压二氧化碳储存罐储存起来。


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    Title :

    Marine low-pressure carbon dioxide filling system and automobile transport ship


    Additional title:

    船用低压二氧化碳充装系统及汽车运输船


    Contributors:
    LU JIAN (author) / HUO HAIAO (author) / LU JUN (author) / WANG ZHAOQIANG (author) / HUANG HAO (author) / SUN YE (author) / YUAN SHUAI (author)

    Publication date :

    2024-11-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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