Energy-saving control method for auxiliary temperature-reducing heat-exchange device of air conditioner

Abstract

The invention discloses an energy-saving control method for an auxiliary temperature-reducing heat-exchange device of an air conditioner. The auxiliary temperature-reducing heat-exchange device comprises an indoor air fan, a heat exchanger and an outdoor air fan, wherein the two fans drive the air indoors and outdoors to perform heat exchange in the heat exchanger respectively, exchange the cooling capacity of the outdoor air to the indoor air, and take the indoor heat out at the same time. The energy-saving control method for the auxiliary temperature-reducing heat-exchange device comprises the following steps of: a, selecting to enter an energy-saving heat-exchange mode; b, measuring the temperature of the indoor air and the temperature of the outdoor air, and calculating the temperature difference between indoors and outdoors; and c, finding the energy efficiency ratio of the auxiliary temperature-reducing heat-exchange device during the temperature difference between indoors and outdoors according to a temperature difference-energy efficiency ration chart of the air conditioner, and starting or shutting the auxiliary temperature-reducing heat-exchange device. The method can accurately judge the most energy-saving starting / stopping time of the auxiliary temperature-reducing heat-exchange device, thereby realizing high efficiency and energy conservation; at the same time, the method can ensure that the auxiliary temperature-reducing heat-exchange device better adapts to different air-conditioning equipment and is matched with the air-conditioning equipment for using; and the method strengthens the adaptability and the universality of the auxiliary temperature-reducing heat-exchange device.

Description

technical field [0001] The invention relates to the technical field of indoor space cooling, in particular to an energy-saving control method for an auxiliary cooling and heat exchange device of an air conditioner, which is mainly applicable to the control of the auxiliary cooling and heat exchange device in a room with a cooling load demand throughout the year, that is, for the outdoor The cold energy of the air is exchanged to the indoor air to reduce the indoor temperature. Background technique [0002] At present, for the design of rooms with cooling load throughout the year, air conditioning is often used to reduce the indoor temperature and make the equipment operate in a suitable temperature range. Taking the communication base station as an example, in order to save energy and reduce consumption, it began to adopt the method of air conditioning + fresh air. In winter and spring and autumn, when the outdoor temperature is relatively low, the outdoor low-temperature ai...

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Problems solved by technology

[0005] In terms of equipment configuration, except that newly added equipment rooms will be equipped with air conditioners and auxiliary cooling heat exchange devices at the same time, a large number of equipment purchases are to add auxiliary cooling heat exchange devices on the basis of the original air conditioners. The company purchases, and the batches, series, and versions of the purchases are different, so it is difficult to find a solution for auxiliary cooling and heat exchange devices that is suitable for all original systems, so great difficulties will be encountered in the design. The adaptability and versatility of the auxiliary cooling heat exchange device put forward high requirements

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