Pre-cooling technology for cabins of liquefied natural gas transport ship

• Main Authors: HUANG ZHIQIANG, WANG HAIJUN, ZENG GAOGUI, LIU JIAO, TIAN LIANJUN, TONG WENLONG, KONG LINGHAI, ZHAO LIANGTING
• Format: Patent
• Language: Chinese; English
• Published: 11.01.2019
• Subjects: AUXILIARIES ON VESSELS; EQUIPMENT FOR SHIPPING; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; TRANSPORTING

The invention relates to a pre-cooling technology for cabins of liquefied natural gas transport ship. The pre-cooling technology comprises the following steps: 1) replacing inerting gases in cabins ofseveral liquefied natural gas carriers with natural gas; 2) performing initial pre-cooling on several cabins of the liquefied natural gas transport ship by using cryogenic natural gas; and 3) in thefinal stage of the cryogenic natural gas cooling, repeating deep cooling on the several cabins of the liquefied natural gas transport ship in the step 2, wherein the amount of natural gas produced during deep cooling is not only controllable, but also safe for cabin cooling operation. Moreover, the gases generated from several cabins can be recovered or exported by the receiving station condenseror liquefied natural gas evaporator compressor. The pre-cooling technology for cabins of liquefied natural gas transport ship realizes the pre-cooling operation at the terminal of the liquefied natural gas receiving station, an