A vacuum-based salt solution heat pump regeneration system

Abstract

The invention discloses a vacuum-based saline solution heat pump regeneration pump which is composed of a vacuum maintaining mechanism, a water catching cold source cycle, a regenerated heat source cycle, a dilute solution supply mechanism, a condensed water drainage mechanism and a regenerated solution drainage mechanism. The vacuum maintaining mechanism comprises an air cylinder, a piston, a water catcher, a first water retaining gate, a regenerator, a regenerated solution tank, a condensed water tank, a heavy tray, a connection rod, a one-way valve and an electromagnetic valve. The water catching cold source cycle comprises a heat pump unit, a second heat regenerator, an electromagnetic valve and a stop valve. The regenerated heat source cycle comprises a first heat regenerator, an electromagnetic valve and a stop valve. The condensed water drainage mechanism comprises a condensed water tank, a one-way valve, an electromagnetic valve and a second water retaining gate. One heat pump set is adopted as cold and heat sources, two effects are achieved, energy is saved, and the structure is compact. In the drainage aspect of condensed water and a regenerated solution, the condensed water and the regenerated solution can be drained out of the system without pressure difference through the valves and other control.

Description

technical field [0001] The invention relates to the technical field of air conditioning, and more specifically relates to a saline solution heat pump regeneration system based on vacuum. Background technique [0002] In the solution dehumidification air-conditioning system, the concentration of the salt solution becomes smaller after absorbing moisture, and the moisture absorption capacity is reduced. It needs to be concentrated to improve the moisture absorption capacity, and then circulates into the dehumidification system again. The process of concentrating the hygroscopic solution and improving the hygroscopic capacity is called the regeneration process of the solution. At present, there are roughly two types of treatment methods, one is the atmospheric pressure heating evaporation method. The problem with this method is that the temperature of the heating source is high and energy consumption is high; the temperature has a great influence on the hygroscopicity of the s...

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Problems solved by technology

The problem with this method is that the temperature of the heating source is high and energy consumption is high; the temperature has a great influence on the hygroscopicity of the salt solution, and the regenerated hot solution must be cooled to room temperature before it can be recycled again. This process is time-consuming longer

The problem with this method is: because it is operated under negative pressure, the steam cannot be discharged smoothly, and a water trap is required, that is, a special low-temperature cold source is needed to condense the water vapor and discharge; the vacuum is generally maintained by a vacuum pump, and the vacuum pump Repeated actions may make the vacuum degree of the system fluctuate greatly; the heating of the dilute solution still needs a special heat source with a certain temperature; the regenerated solution still needs a certain period of time to cool down to the design temperature

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