Solar central water heating system with heat accumulation function
A technology of solar heat collector and hot water system, which is applied in the field of concentrated solar hot water system with heat storage function, can solve the problems of vacuum glass tube bursting, shortened life, and aging of non-metallic seals, so as to reduce energy consumption, Reducing the size of the water tank and reducing the effect of heat loss
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[0037] Example 1:
[0038] Such as figure 1 with image 3 As shown, the bottom of the water tank 3 is equipped with a heat accumulator 4, the heat accumulator 4 includes a heat accumulator shell 41 and a heat accumulator core tube 42, the heat accumulator shell 41 and the heat accumulator core tube 42 form a jacket, The jacket is sealed and filled with a heat storage medium 43, which is a liquid-solid phase change heat storage medium, and its phase change temperature is T R Higher than the set system hot water supply temperature T S , And below 70℃, the phase transition temperature T of the heat storage medium 43 R =50~70℃, the preferred value is 55~60℃, the two ends of the heat accumulator core pipe 42 are the heat accumulator water inlet 44 and the heat accumulator water outlet 45, the heat accumulator water inlet 44 and the solar heat collection The outlet of the solar collector array 1 is connected, and the outlet 45 of the heat accumulator water circuit is directly opened in ...
Example Embodiment
[0050] Example 2:
[0051] Such as figure 2 As shown, this embodiment is compared with Example 1. An auxiliary heat source 10 (electric heater, heat pump, etc.) is added to the system, and the circulating water inlet of the auxiliary heat source 10 passes through the auxiliary heat source check valve 11 and the auxiliary heat source circulating pump 12 in turn. The lower part of the water tank 3 is connected, and the water outlet of the auxiliary heat source 10 is connected to the heat accumulator water inlet 44; when the auxiliary heat source 10 (especially the heat pump) also has the function of direct heating and water production, its single direct heat production water inlet is also connected with Water pipe connection. On the basis of the working method of embodiment 1, this embodiment relies on the auxiliary heat source 10 to supplement the production and supply of hot water under the condition of insufficient solar radiation and insufficient water production of the solar ...
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