LOOP TYPE HEAT PIPE SYSTEM SOLAR HEAT WATER HEATER

摘要

PURPOSE:To enable to secure a high heat transferring performance by a method wherein the heat pipe is constituted so as to form the enclosed loop by communicating an upper header tube with one end of a condensing part and the lower header tube with the other end of the condensing part. CONSTITUTION:The evaporating part 4 of a loop type heat pipe 3 is accommodated on an insulating member 2 at the bottom of a solar heat collector 1 and the condensing part 6 of the pipe 3 is arranged in a heat exchange tank 5 while the evaporating part 4 is constituted by an upper header tube 7, a lower header tube 8 and a pipe 10 communicating both tubes and equipped with a heat collecting panel 9. When the amount of sunshine is much, an operating liquid in the pipe 10 is boiled and evaporated violently and two phases current of vapor and liquid are ascended violently through the pipe 10, but the operating liquid 13 is supplied stably into the pipe 10, therefore, the high heat transferring performance may be secured without dry-out. On the other hand, when the amount of sunshine is less, the evaporating amount of the operating liquid 13 becomes less and the liquid 13 is supplied uniformly into the pipe 10 from the lower header tube 8.