Regenerative semi-dehumidification heat pump system and method

Abstract

The invention provides a heat-regenerating-type semi-decoupling dehumidification heat pump system which is characterized in that the heat-regenerating-type semi-decoupling dehumidification heat pump system comprises a closed-type refrigerant system and an opened-type air system; the closed-type refrigerant system comprises two four-way reversing valves, two dehumidification heat exchangers, a gas-liquid heat exchanger, a throttling device, an evaporator and a compressor; and the opened-type air system comprises two draught fans, an air distributing valve, eight air valves and two air openings.According to the heat-regenerating-type semi-decoupling dehumidification heat pump system, the circulating evaporation side is connected with a dehumidification evaporator and the evaporator in series, the condensing side is constituted by dehumidification condensers, and the gas-liquid heat exchanger is arranged on an air suction pipeline of the compressor; a stream of air sequentially flows through the dehumidification evaporator and the evaporator to be cooled and dehumidified, meanwhile another stream of air flows through the dehumidification condensers to be heated and humidified; and compared with the prior art, the problem that the treatment capacity of circulating thermal-humid loads of the dehumidification heat exchangers is not synchronous can be solved, by selecting an appropriate refrigerant and regenerative temperature, condensation heat can be efficiently utilized, and the circulating property is further improved.

Description

technical field [0001] The invention relates to a system in the technical field of solid dehumidification heat pumps, in particular to a regenerative semi-decoupled dehumidification heat pump system and method. Background technique [0002] Solid dehumidification air-conditioning technology uses dehumidification materials to absorb water vapor in the air, and the sensible heat load is processed by natural cold sources or traditional compression refrigeration systems, thereby realizing the separate processing of sensible heat load and latent heat load, overcoming the problem of compression air-conditioning technology. Limitations of centralized processing load. However, the adsorption heat released by the dehumidification material during the solid dehumidification process will lead to an increase in the equilibrium adsorption temperature between the desiccant and the treated air, which will not only reduce the hygroscopic performance of the desiccant, but also increase the re...

AI Technical Summary

Problems solved by technology

However, this type of system still has certain limitations: on the one hand, the heat and humidity load handling capacity of the cycle is not synchronized, and the overall performance is not high; on the other hand, there is still a large amount of condensation heat that cannot be effectively utilized

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