| 摘要 |
<p>The object of the invention is a water heating device as a combination of an ambient heat collector and a heat pump, in which a condenser of the heat pump is connected to a counterflow heat exchanger, to which is connected a mains water storage boiler, so that the heat energy is always delivered to the mains water in the region of the highest attained temperature level. The heat exchanger is made of three pipes formed as Archimedean spirals and integrally drawn or metallically bonded. The lower pipe is connected to the heat collector, the middle pipe is an evaporator of the heat pump, and the upper pipe is a cooler for a liquefied refrigerant.</p> |
