A system for accelerated transport of warm liquid in a colder piping system with spontaneous onset of warm liquid in decentral heat exchangers or decentralized buffers

摘要

Decentralized heat exchangers are often used to supply warm drinking water, especially when retrofitting older residential buildings. These use warm heating water to heat cold drinking water near the collection points. So that - especially outside the heating season - no permanent circulation of the heating water is necessary, systems are now known that are independent of the heating water temperature in the lines in rest periods with the help of latches (5). The size of these buffers (5) hitherto depends on the line contents of the previously arranged heating flow (1). The system according to the invention now enables buffer memories (5) which can be made smaller. This is made possible by, if necessary, the volume flow from the central heating (14) is increased to the used buffer (5) until warm heating water arrives at the buffer (5). The initially arriving cold heating water is thereby passed to the central heating (14) by the surplus of the volume flow via the heating return (2). Also arranged in series latches (5) and branched pipe systems can be operated with the system according to the invention. The system according to the invention is also applicable to other line systems with latches (5).