Heat exchanger

• Main Author: VIKLUND BENGT A.,BERGGREN GOTE G.,MOGENSEN LEO O
• Format: Patent
• Language: English
• Published: 19.09.2007
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; HEAT EXCHANGE IN GENERAL; HEAT PUMP SYSTEMS; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

A heat exchanger (301, 501, 601) for connection to an evaporator (201) of a heat transfer system using a working fluid that undergoes compression and evaporation. The heat exchanger comprises a first tube (107, 507, 607) having a first end (303) configured to be connected to the outlet (204) of an evaporator to allow fluid transmission from said outlet, and a second tube (108, 508, 608) having a first end configured to be connected to the inlet of the evaporator to allow fluid transmission to said inlet. The second tube is positioned within, or in thermal contact with, the first tube for a proportion (109, 110) of the respective lengths of the first tube and the second tube, so as to allow an exchange of heat between the fluid within said tubes. The first tube is constructed from steel alloy having alloyed components which reduce the hardness of said steel alloy to facilitate tube bending, thereby allowing the first tube to be bent during installation within the heat transfer system.