The invention relates to the technical field of ship air conditioning units, in particular to an auxiliary refrigerating system of a ship air conditioning unit, which comprises an LNG supply assembly, an auxiliary refrigerating assembly and a ship air conditioning assembly, a cold energy utilization heat exchanger is connected with a gaseous LNG pipeline, the other end of the gaseous LNG pipeline is connected with an LNG evaporator, the LNG evaporator is connected with a main engine gas valve group unit, and the main engine gas valve group unit is connected with the ship air conditioning assembly. The cold energy utilization heat exchanger is connected with the first refrigerant pipeline set, and the LNG evaporator is connected with the second refrigerant pipeline set. According to the auxiliary refrigerating system of the ship air conditioning unit, liquid LNG is stored in the LNG storage tank arranged on the ship through the LNG filling station and the internal valve, when the LNG needs to be used, the immersed pump arranged in the LNG storage tank is used for lightering the liquid low-temperature LNG out, the liquid low-temperature LNG can be lightered to the filling station through the valve on the liquid LNG pipeline, and the LNG filling station is used for filling the LNG. And the gas can also be lighted to the cold energy utilization heat exchanger and then adjusted to a proper temperature through the LNG evaporator to be used by the main engine gas valve group unit.
本发明涉及船舶空调机组技术领域,船舶空调机组辅助制冷系统,包括LNG供气组件、辅助制冷组件及船舶空调组件,所述冷能利用换热器连接气态LNG管线,所述气态LNG管线的另一端连接LNG蒸发器,所述LNG蒸发器与主机燃气阀组单元相连接,所述冷能利用换热器与第一制冷剂管路组一相连接,所述LNG蒸发器与第一制冷剂管路组二相连接。该船舶空调机组辅助制冷系统,通过在通过LNG加注站和内部阀门把液态LNG储存在船舶配备的LNG储存罐内,在需要使用LNG的时候,用LNG储存罐内配置的潜液泵将液态低温LNG驳运出去,可以通过液态LNG管线上的阀门驳运到加注站,也可以驳运至冷能利用换热器,再经过LNG蒸发器调整到适合的温度供主机燃气阀组单元使用。
Auxiliary refrigerating system of ship air conditioning unit
船舶空调机组辅助制冷系统
2024-11-12
Patent
Electronic Resource
Chinese
IPC: | B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS |