Heat and humidity segmented treatment air-conditioning device and method combined with radiation cold supply

Abstract

The invention discloses a heat and humidity segmented treatment air-conditioning device and method combined with radiation cold supply. The device mainly comprises a cold water unit, an air treater, a radiation coil pipe, a water pump, an electromagnetic valve and a pipeline. In a system, chilled water obtained by the cold water unit is used for cooling and dehumidifying air, and is supplied to a ceiling or a floor radiation coil pipe for radiation cold supply to realize segmented treatment of heat and humidity loads in a room. The radiation coil pipe is used for supplying cold and bearing a part of sensible heat load in the room, and dehumidified supply air is used for bearing the other part of sensible heat load in the room and indoor humidity load and preventing a radiation surface from moisture condensation. Chilled water is segmentally applied to dehumidification and radiation cold supply, and the temperature difference between supply water and return water is about 7-10 DEG C. A refrigeration cycle of a water chilling unit is realized with a non-azeotropic refrigerant, and good temperature matching of chilled water and the refrigerant in the heat exchanger is realized by means of the temperature slippage characteristic of the non-azeotropic refrigerant, so that the performance coefficient of the unit is increased.

Description

technical field [0001] The invention relates to a heat-moisture segmental treatment air-conditioning device and method combined with radiation cooling, and belongs to the technical field of refrigeration and air-conditioning system design and manufacture. Background technique [0002] Traditional air-conditioning systems generally use low-temperature chilled water to cool and dehumidify the air. In order to achieve the purpose of dehumidification, the temperature of chilled water is low, which requires a low evaporation temperature, so the unit has a low coefficient of performance and high energy consumption. . In addition, the energy consumption of water pumps and cooling towers accounts for an increasing proportion of the total energy consumption of the air conditioning system. The temperature difference between the supply and return water of chilled water in ordinary chillers is generally 5°C. consumption, but on the other hand, the large temperature difference and small...

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Problems solved by technology

[0004]Technical problem: the purpose of this invention is to solve the problems of low evaporation temperature, high energy consumption of water pump, complex system and cooling capacity of radiation cooling system in the existing air conditioning system Insufficient, easy to condense and other problems, provide an efficient heat and humidity segmental treatment air conditioning device and method combined with radiant cooling

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