Intermediate fluid type vaporizer, and natural gas supply method using

Abstract

An intermediate fluid type vaporizer has an intermediate fluid evaporator for containing an intermediate fluid. The intermediate fluid evaporator includes heat source tubes for evaporating the intermediate fluid, and a low-temperature liquid evaporating section for evaporating a low-temperature liquid by exchanging heat between the low-temperature liquid and the evaporated intermediate fluid. In the intermediate fluid evaporator, members for dividing the intermediate fluid, and cover plates for covering both ends of the intermediate fluid level from above are provided to prevent the intermediate fluid level from changing due to the shaking of the intermediate fluid evaporator itself. This vaporizer and an LNG tank are mounted on a ship so as to vaporize LNG in the ship and to supply the LNG to an onshore consumer.