Air conditioning system, control method, storage medium, and controller

By integrating a fresh air handling unit with a multi-split air conditioning unit, and utilizing the outdoor unit to provide a second cooling source with flexible switching of cooling sources, the high reliability and resource waste issues of the MAU fresh air system in cleanrooms are solved, achieving efficient and energy-saving dehumidification.

CN118729410BActive Publication Date: 2026-07-21GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Filing Date
2024-07-15
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing cleanroom MAU fresh air system requires dual cooling source equipment, which leads to increased initial investment costs and waste of resources, and lacks flexibility to cope with environmental changes.

Method used

By integrating the fresh air handling unit with the multi-split air conditioning unit, the outdoor unit provides a second cold source for the low-temperature dehumidification section. The cold source can be flexibly switched and adjusted through control valves and regulating valves. The working mode is determined by humidity and flow sensors, so as to realize the on-demand distribution of cold source and mutual backup.

Benefits of technology

It improves the reliability and stability of the low-temperature dehumidification section, reduces the initial investment cost of the plant, reduces the space occupied in the machine room, improves the energy efficiency ratio and energy saving effect, and ensures the stability and flexible response capability of the clean environment.

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Abstract

The application provides an air conditioning system, a control method, a storage medium and a controller. The air conditioning system is used in a clean workshop and comprises a fresh air treatment unit and a multi-connected air conditioning unit. The fresh air treatment unit comprises a low-temperature dehumidification section for dehumidifying fresh air. First and second flow channels are arranged in the low-temperature dehumidification section. The first flow channel is used for the flow of a first cold source, and the second flow channel is used for the flow of a second cold source. The multi-connected air conditioning unit comprises an outdoor unit connected with the second flow channel to provide the second cold source for the low-temperature dehumidification section. When the air conditioning system is in a first working mode, the low-temperature dehumidification section dehumidifies the fresh air by using the first cold source. The air conditioning system can effectively solve the technical problem of configuring a standby unit for a low-temperature system in a clean workshop to ensure the high reliability of the operation of the MAU fresh air system.
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