Energy-saving control system of central air conditioner

Abstract

The invention provides an energy-saving control system of a central air conditioner. The energy-saving control system comprises an air conditioner tail end, a tail end water supply and return communicating pipeline, a temperature and humidity sensor, an electric regulating valve, a controller (1), a water return pump, a flow sensor, a controller (2) and a refrigerating unit. The temperature and humidity sensor is electrically connected with the controller (1), the controller (1) is electrically connected with the electric control valve, the flow sensor is electrically connected with the controller (2), and the controller (2) is electrically connected with the refrigerating unit. The energy-saving control system of the central air conditioner aims to solve the problems of excessive dehumidification, large indoor temperature variation amplitude and high energy consumption of the central air conditioner. The system can reuse the return water heat at the tail end of the air conditioner, adjust the water supply temperature at the tail end and control the dehumidification degree, a new mode for adjusting the indoor temperature is provided, the power of the refrigerating unit can be adjusted according to the flow of the main water return pipe, and energy-saving optimization of the central air conditioner is achieved.

Description

technical field [0001] The invention belongs to the field of air conditioners, and in particular relates to an energy-saving control system for a central air conditioner. Background technique [0002] The temperature of the water supply at the end of the central air conditioner during the cooling process is often fixed at 7°C, which is generally lower than the dew point temperature of the air in the room. Therefore, when the central air conditioner performs cooling work, the indoor humidity continues to decrease, and the body temperature is lower than the actual temperature. Ambient temperature, resulting in poor comfort. Although the central air conditioner is often used in combination with the independent fresh air system to solve this problem, at present, the independent fresh air system is mostly installed and not used. [0003] During the cooling process at the end of the central air conditioner, it mainly adjusts the air supply at the end of the air conditioner to mee...

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Problems solved by technology

[0005] In view of the above-mentioned problems caused by the central air-conditioning in the refrigeration process, the purpose of the present invention is to improve the problems of excessive dehumidification, large indoor temperature changes and high energy consumption of the central air-conditioning, and to provide an energy-saving control system for the central air-conditioning

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