Absorption-type large-temperature-difference heat exchange unit driven by low-temperature hot water
A technology for low-temperature hot water and heat exchange units, which is applied to heating methods, boiler absorbers, and hot water central heating systems, etc., can solve the problems of lowering the temperature of the driving heat source, unsuitable absorption heat exchange units, and the unit cannot operate. Achieve the effect of increasing the temperature difference between the supply and return water, increasing the conveying capacity, and reducing the temperature of the return water
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[0011] see figure 1 , the absorption type large temperature difference heat exchange unit driven by low-temperature hot water of the present invention includes a generator G2, a condenser C, a low-pressure absorber A, an evaporator E, a high-pressure absorber A2, a high-temperature generator G and a water-water plate heat exchanger W .HEX. Low-pressure absorber A and evaporator E form a low-pressure cylinder, high-pressure absorber A2 and high-temperature generator G form a medium-pressure cylinder, generator G2 and condenser C form a high-pressure cylinder, and the low-pressure cylinder and medium-pressure cylinder are arranged separately Or overall arrangement. The circulation system of the unit of the present invention is divided into an external pressurized water circuit and an internal vacuum circuit. The external pressurized waterway is divided into primary network waterway and secondary network waterway. The primary network waterway passes through high-temperature gen...
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