INTERMEDIATE MEDIUM CARBURETER

• Main Authors: MATSUDA HARUYUKI, EGASHIRA SHINJI
• Format: Patent
• Language: English; Japanese
• Published: 20.11.2014
• Subjects: BLASTING; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; HEAT EXCHANGE IN GENERAL; HEATING; LIGHTING; MECHANICAL ENGINEERING; STORING OF DISTRIBUTING GASES OR LIQUIDS; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

PROBLEM TO BE SOLVED: To improve heat transfer performance while ensuring seawater resistance.SOLUTION: An intermediate medium carbureter 10 comprises: an intermediate medium evaporator E1 including heat transfer tubes 20 in which seawater flows and evaporating at least a part of a liquid intermediate medium M outside of the heat transfer tubes 20 by implementing heat exchange between the seawater in the heat transfer tubes 20 and the intermediate medium M outside of the heat transfer tubes 20; and an LNG evaporator E2 including a heat transfer tube 40 in which LNG flows and gasifying the LNG in the heat transfer tube 40 by condensing the intermediate medium M evaporated in the intermediate medium evaporator E1 outside of the heat transfer tube 40. The heat transfer tubes 20 of the intermediate medium evaporator E1 are made of titanium or titanium alloy, and a groove having a hollow part communicating with the outside through gaps on an outer surface is formed on an outer circumferential surface of each heat transfer tube 20. 【課題】耐海水性を担保しつつ、伝熱性能を向上する。【解決手段】中間媒体式気化器１０は、海水が流れる伝熱管２０を有し、該伝熱管２０内の海水と該伝熱管２０外の液状の中間媒体Ｍとの間での熱交換によって中間媒体Ｍの少なくとも一部を蒸発させる中間媒体蒸発器Ｅ１と、ＬＮＧが流れる伝熱管４０を有し、中間媒体蒸発器Ｅ１で蒸発した中間媒体Ｍを伝熱管４０外で凝縮させることにより、伝熱管４０内のＬＮＧを気化させるＬＮＧ蒸発器Ｅ２と、を備える。中間媒体蒸発器Ｅ１の伝熱管２０は、チタン製又はチタン合金製であり、伝熱管２０の外周面には、外面の間隙を通して外部に連通する空洞部分を有する溝が形成されている。【選択図】図１