Solution regenerating device achieving controllable condensation based on vacuum boiling

Abstract

The invention discloses a solution regenerating device achieving controllable condensation based on vacuum boiling. The solution regenerating device achieving the controllable condensation comprises a refrigerant loop, a solution loop, a vacuum maintaining loop and an air loop. The characteristic that under the vacuum state, solution boiling point is reduced is fully used for regenerating solution, the effect that condensation heat quantity and evaporation cold quantity of a set of refrigerating system are used for supplying a regenerative heat source and condensation cold quantity to solution regeneration is achieved, and solution regenerating velocity and solution regenerating density can be flexibly adjusted. Meanwhile, due to the fact that working pressure in a finned tube exchanger in the air loop can be adjusted, evaporation temperature of the refrigerating system can be adjusted, so that the device is compact, flexible and convenient to use and meanwhile has higher solution regenerating efficiency and improves system energy efficiency.

Description

[0001] technical field [0002] The invention belongs to the field of design and manufacture of refrigeration and air-conditioning systems, and relates to a solution regeneration device based on solution vacuum boiling and capable of realizing controllable water condensation by utilizing the characteristic of low solution boiling point under vacuum. [0003] Background technique [0004] During the heating operation of the heat source tower heat pump system in winter, the solution is used to exchange heat with the air in the heat source tower. During this process, due to the partial pressure difference between the water vapor in the air and the water vapor on the surface of the solution, the moisture in the air will enter the solution. , to make the concentration of the solution thinner, and the freezing point of the solution will rise. In order to ensure the safety and reliability of the system operation, it is necessary to discharge the water absorbed by the solution from ...

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Problems solved by technology

In the process of renovation of existing buildings, since the unit has been fixed, it is difficult to change, so the solution regeneration device of the heat source tower must be installed separately, which puts forward requirements for the flexible and convenient use of the solution regeneration device, and the solution regeneration requires external heat. The high efficiency of the solution regeneration device affects the efficiency of the heat source tower heat pump system. At the same time, the regeneration speed and efficiency of the solution regeneration device restrict the application scale of the heat source tower heat pump system

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