Four-pipe air conditioning system

Abstract

The invention discloses a four-pipe air-conditioning system, which comprises a user-side heat exchanger of an air-conditioning refrigeration equipment, a hot water heater of the air-conditioning refrigeration equipment, a first water flow control valve, a second water flow control valve, a third water flow control valve, a Four water flow control valves, the fifth water flow control valve, the sixth water flow control valve, the seventh water flow control valve, subsystem connecting pipes, at least one cooler and reheater; the user side heat exchanger of the air-conditioning refrigeration equipment, the first Four water flow control valves, the fifth water flow control valve and at least one cooler constitute the chilled water subsystem of the four-pipe air-conditioning system; the hot water heater, the first water flow control valve, the sixth water flow control valve and at least A reheater forms the hot water subsystem of the four-pipe air conditioning system. Using one air-conditioning and refrigeration equipment can meet the cooling and heat requirements of the air-conditioning system during the air-handling process; it is especially suitable for air-conditioning occasions that require temperature and humidity and each air-conditioned room needs to be controlled independently.

Description

technical field [0001] The invention relates to a four-pipe air-conditioning system driven by air-conditioning and refrigeration equipment with simultaneous heating and cooling functions, and belongs to the technical field of air-conditioning. Background technique [0002] The invention patent published by the applicant on August 1, 2012, with the application number 201210093904.4, proposes a water system for air treatment equipment, the system composition and air treatment unit are as follows: Figure 7 , 8 As shown, it can be seen from the figure that the air treatment unit of the water system of the air treatment equipment (such as Figure 8 Shown) In the process of heating air in winter, hot water with a higher temperature first enters the cooler 100 to exchange heat with the inlet air with a lower temperature, and the heat is released and the water temperature is lowered before entering the reheater 30 and coming from the cooler 100, The air after the temperature rises...

AI Technical Summary

Problems solved by technology

like Figure 12 As shown, in the working process, when the air-conditioning equipment 100 and the domestic hot water heater 30 are respectively air-water heat exchangers, and are composed as Figure 8 When the air handling unit is shown, in the process of heating the air in winter, hot water and air are due to the air handling unit (such as Figure 8 As shown), the countercurrent heat exchange cannot be formed, so it will also affect the working efficiency of the entire air handling unit

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