Adsorption type heat exchanger unit

Abstract

The invention discloses an adsorption type heat exchanger unit, which comprises a hot water adsorption type heat pump unit, a water-water heat exchanger, a primary side pipeline and a secondary side pipeline, wherein the primary side pipeline successively passes through the generator of the heat pump unit, the water-water heat exchanger and the evaporator of the heat pump unit from water supply to water return; the secondary side pipeline passes through the absorber of the heat pump unit, a condenser and the water-water heat exchanger; the heat exchanger unit also comprises a heat supply network heater; before the primary side pipeline enters the generator of the heat pump unit, the primary side pipeline firstly passes through the heat supply network heater. Compared with the prior art, the adsorption type heat exchanger unit has the characteristics that the primary side pipeline is heated by the heat supply network heater before the primary side pipeline enters a heat exchange pump unit to realize a heat supplementation function and further improve the water supply temperature of the primary side pipeline so as to improve the water supply and water return temperature difference of primary side hot water, and therefore the initial investment and operation cost of the adsorption type heat exchanger unit can be further reduced.

Description

technical field [0001] The invention relates to the technical field of heating equipment, in particular to an absorption heat exchange unit. Background technique [0002] As the scale of urban central heating increases year by year, the high-temperature hot water generated by centralized heat sources needs to be transported over a long distance to reach the heating area. In the case of the same heat supply, increasing the temperature difference between supply water and return water can Reduce the flow of water supply, thereby reducing the initial investment in pipelines. At the same time, it can also reduce the power consumption of water pumps, so it can reduce heating energy consumption and heating costs. [0003] Please refer to figure 1 , figure 1 It is a structural schematic diagram of the absorption heat exchange unit disclosed in the patent CN101236032A; the following briefly introduces the working principle and technical defects of this heat exchange unit. [0004]...

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Problems solved by technology

[0006] However, the temperature difference between the supply water and the return water of the primary side pipeline 3' of the above-mentioned heat exchange unit is still not large enough. When the water supply temperature or flow rate of the primary side hot water is low, the secondary side supply water temperature cannot be guaranteed.

In the prior art, even if some absorption heat exchange units have the function of supplementary heat, when the supplementary heat part breaks down, the whole heat exchange unit will not be able to operate normally.

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