LAMINATE-TYPE HEAT EXCHANGER

• Main Authors: SETOMARU NAOYA, KOBAYASHI TOSHIMICHI
• Format: Patent
• Language: English; Japanese
• Published: 13.09.2021
• Subjects: BLASTING; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

To reduce thermal stress generated at a heat exchanger in which two cores are separated by the partitioning plate in a laminate direction.SOLUTION: The present invention includes: a first core 2a composed of a laminate of a flat tube 1; a second core 2b; a partitioning plate 3 provided parallel with a planar part 1a of the flat tube 1 by separating between the two cores 2a, 2b in a laminate direction of the flat tube 1; and a casing 4 fitted to a whole outer periphery of the two cores 2a, 2b with the partitioning plate 3 positioned at center. On the partitioning plate 3, a swelling part 3d is provided which expands one refrigerant flow passage adjacent to the partitioning plate 3 and contracts the other refrigerant flow passage, out of the first refrigerant flow passage 6a and the second refrigerant flow passage 6b adjacent on both sides of the partitioning plate 3.SELECTED DRAWING: Figure 2 【課題】 仕切板によって２つのコアを積層方向に分離した熱交換器に発生する熱応力を低減させること。【解決手段】 偏平チューブ１の積層体よりなる第１コア２ａと、第２コア２ｂと、両コア２ａ，２ｂとの間を、偏平チューブ１の積層方向に分離して、偏平チューブ１の平面部１ａに平行に配置した仕切板３と、その仕切板３を中間に位置して前記両コア２ａ，２ｂの外周全体に被嵌するケーシング４と、を具備し、仕切板３には、その仕切板３の両面に隣接する第１冷媒流路６ａ及び第２冷媒流路６ｂのうち、仕切板３に隣接する一方の冷媒流路を拡張し、他方の冷媒流路を縮小する膨出部３ｄが設けられている。【選択図】図２