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Forum Forum: FAQ und Tipps Thread: The principle of the condensing boiler and heat pu
 
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The principle of the condensing boiler and heat pu
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#1 am 22.05.2020 um 02:41h
meishengchao
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Posts: 1884
    The combined system of condensing boiler and heat pump not only uses the principle of energy saving and environmental protection of condensing boiler, but also uses the principle of heat pump to improve low-grade heat energy to high-grade heat energy. In this system, in order to enable the heat pump system to recover the lower-grade heat energy as much as possible, reduce the installed capacity and power consumption of the heat pump system, and achieve as much energy saving as possible, first return the hot network water and the high-temperature exhaust smoke from the body of the condensing boiler Perform heat exchange to cool the flue gas to a certain temperature, and then pass the low-temperature flue gas through a condensing heat exchanger (a corrosion-resistant material, such as stainless steel) to recover some of the latent and sensible heat in the flue gas. In order to maintain the stability of the temperature of the low-temperature heat source at the evaporation end of the heat pump and reduce the average temperature difference of heat transfer at the evaporation end, the flue gas is first passed through the partition-wall condensing heat exchanger (such as plate type, tube type, etc.) or contact condensing heat exchanger (such as Liquid column type, packing type, etc.), use low-temperature water (cooling water) to exchange heat with the flue gas first, and then pump the heated cooling water to the evaporation end of the heat pump with water, and generate heat with the heat pump working fluid (such as R11, etc.) exchange. The following introduces the combined heat energy recovery system of the condensing heat exchanger and heat pump. The system has two types: as shown in Fig. 1 the partition wall condensing heat exchanger and heat pump combined heat energy recovery system and Fig. 2 the contact condensation heat exchanger and heat pump combined heat energy recovery system . read more:
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