SELF-POWERED PUMP FOR HEATED LIQUID AND HEAT DRIVEN LIQUID CLOSE-LOOP AUTOMATIC CIRCULATING SYSTEM EMPLOYING SAME

摘要

A heat driven self-circulating device for a heated liquid for use with a liquid heat collector is disclosed. The devise comprises an airtight container for containing a heated liquid, said container having an upper air/vapor space located above a liquid level surface therein and a lower liquid space located below said liquid level surface. The container has an inlet of said heated liquid and an outlet of said heated liquid wherein said outlet of said heated liquid is located below said liquid level surface in said container, and said inlet of said heated liquid inlet is located not lower than said heated liquid outlet. A breathing channel for continuously connecting atmosphere with said upper air/vapour space ; said breathing channel having a liquid vapour condensing and refluxing structure. A heat driven liquid self-circulating system has been also disclose that employs above mentioned heat driven self-circulating device This system circulates the liquid in a close-loop by the collected heat in the loop. The system may operate without external power for the pump. The system can transfer heated liquid to a place higher, lower or at same level of the heat collector. The heat driven liquid close-loop automatic circulating system may be a solar heated liquid close-loop automatic circulating system with a solar heat collector.