| 摘要 |
PURPOSE:To improve durability of the diaphragm of a temperature controlled expansion valve, and reliability in the motor of a compressor at the time of fluctuation of load, by constituting a heat transfer surface on the downstream side of a heat collector of fin tube type larger than the upstream side of it, in a solar heat collector for supply of hot water and the like equipment. CONSTITUTION:The heat transfer surface on the downstream side is increased more than that on the upstream side of a heat collector 1 of fin tube type, by more densely assembling part of fins 2 for the downstream side. With such an arrangement, plenty of time can be prepared for a transition point of vaporizing refrigerant to move to the outlet side of a heat collector 1, in accordance with the change in velocity of open air. As a result, the frequency in change of the outlet temperature is decreased, and the number of time of diaphragm operation of a temperature controlled expansion valve 6 is decreased so that its durability is improved, at the same time, reliability in the motor of a compressor 4 is prevented from lowering, in regard to load fluctuation. |
