Central air conditioner system

Abstract

The invention relates to a novel independent fresh-air air conditioner system and an operation method of the novel independent fresh-air air conditioner system. The system comprises a temperature control system and a humidity control system. The temperature control system comprises a double-working-condition water chilling unit, a cooling water system and a high-temperature water cooling system, wherein the cooling water system and the high-temperature water cooling system are connected with the double-working-condition water chilling unit. The cooling water system of the temperature control system comprises a cooling tower and a cooling water pump. The high-temperature water cooling system of the temperature control system comprises a high-temperature ethylene glycol pump, a high-temperature plate heat exchanger, a high-temperature cold water pump and sensible heat terminal equipment. The humidity control system comprises a double-working-condition water chilling unit, a cooling watersystem and a low-temperature water cooling system, wherein the cooling water system and the low-temperature water cooling system are connected with the double-working-condition water chilling unit. The low-temperature water cooling system of the humidity control system comprises a low-temperature ethylene glycol pump, an ice storage device, a low-temperature plate heat exchanger, a low-temperature cold water pump and a double-cold-source fresh air handling unit. According to the novel independent fresh-air air conditioner system and the operation method, the double-working-condition water chilling units are used as a high-temperature cold source in the daytime and a low-temperature cold source in the evening, so that the ice storage amount can be reduced and the initial investment can besaved; and independent temperature and humidity control can be realized, and the indoor comfort is improved.

Description

technical field [0001] The invention belongs to the technical field of central air-conditioning systems, and in particular relates to a central air-conditioning system that uses refrigerants of different temperatures and adopts different forms of cold sources to cool air in sections. Background technique [0002] In the air conditioning system, the temperature and humidity are independently controlled. For the treatment of fresh air, there are solution dehumidification technology, rotary dehumidification technology, and low temperature dehumidification technology. [0003] Low temperature dehumidification technology has direct expansion evaporative cooling dehumidification and low temperature water cooling dehumidification. Low temperature water cooling and dehumidification, there are three cold source technologies using low temperature chillers, ice storage and water storage. [0004] There are two ways to use ice storage to dehumidify. One is to use the low-temperature c...

AI Technical Summary

Problems solved by technology

This method will increase the installed capacity, increase the initial investment, and increase the area of ​​the refrigeration room.

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