| 摘要 |
PURPOSE:To prevent the corrosion and the deposition of fur, by connecting an air vent pipe extending from a solar heat collector with an upper part of a relay rank that is put between a riser for delivering water to the heat collector and a downcomer for delivering the warm water that has collected heat. CONSTITUTION:The riser 4 is connected via a water delivering inlet header pipe 5 to a heat collector water pipe 3 that is in turn connected via an outlet header pipe 6 and a warm water pipe 7 to the downcomer 8. A warm water pipe 12 is extended from a position 10 adjacent the bottom of the relay tank 9 via a circulating pump 11 to a heat exchanger 14 so that the pipe 12 is in communication with the riser 4. The air involved in the system will be delivered with the delivered water through an air vent located at the upper section of the heat collector 2, an air pipe 13, and a part 16 adjacent the top of the relay tank 9 into the tank 9. The air is then vented from the tank 9 via an air pipe 18 to an air expansion tank 17. Thus the system is thoroughly sealed, and the corrosion or the like can be prevented. |
