LNG冷能的船舶冷库与空调系统设计与分析

针对LNG动力船中LNG燃料的冷能多且未被加以利用的问题,设计了一套利用LNG冷能的船舶冷库和空调系统,并选择系统所需的冷媒,同时利用Hysys软件对系统进行了流程模拟,简述其具体流程,并且对该系统所需主要换热器进行选型、材料的选择、结构的设计以及应力的校核,最后对该系统的经济性进行了分析,该LNG冷能利用系统的主要目的是将LNG冷能作为LNG动力船上冷库和室内空调的冷源,从而达到节能降耗的目的。

Design and Analysis of Marine Refrigerator and Air Conditioning System based on LNG Cold Energy

In view of the problem that the cooling capacity of LNG fuel in LNG power ship is large and not used, a set of cold storage and air conditioning system using LNG cold energy is designed to select the cooling medium required for the system, and the system flow simulation is carried out by using the Hysys software, and the specific process is briefly described. At the same time, the main heat exchangers are selected and the material is selected. The selection of the material, the design of the structure and the check of the stress are analyzed, and the economy of the system is analyzed. The main purpose of the LNG cold energy utilization system is to use the cold energy of the LNG as the cold source of the cold storage on the LNG power ship and the indoor air conditioning, thus achieving the purpose of saving energy and reducing the consumption.