A method for fresh air control

Abstract

The invention discloses a fresh air exchange control method. The fresh air exchange control method comprises the steps that whether an indoor air conditioner is in a work state or a shutdown state is judged; and if the air conditioner is in the work state, the following first fresh air exchange control process is performed, wherein the outdoor environment temperature and the indoor carbon monoxide concentration are acquired and compared with the preset outside environment temperature condition and the set concentration respectively; when the indoor carbon monoxide concentration is larger than the first set concentration, a fresh air exchange system is started; after the fresh air exchange system is started, if the condition that the indoor carbon monoxide concentration is larger than the second set concentration but not larger than the first set concentration, and the outdoor environment temperature accords with the preset outside environment temperature condition is achieved, or the condition that the outdoor environment temperature does not accord with the preset outside environment temperature condition and the indoor carbon monoxide concentration is not larger than the second set concentration is achieved, the fresh air exchange system is shut down. By means of the application of the fresh air exchange control method, indoor carbon monoxide concentration and temperature comfort can be both considered, and the indoor environment comfort is improved.

Description

technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to a fresh air control method. Background technique [0002] Carbon monoxide is easily combined with hemoglobin to form carboxyhemoglobin, which makes hemoglobin lose its ability and function to carry oxygen, causing tissue suffocation and death in severe cases. At present, in some users' homes, carbon monoxide is easily produced due to the use of gas or coal stoves. If the concentration of carbon monoxide in the room is too high, it will cause the human body to feel uncomfortable, and even endanger the health of the user. [0003] In order to reduce the discomfort caused by the high concentration of carbon monoxide in the room, a fresh air system is usually installed in the room. When the concentration of carbon monoxide in the room is too high, the fresh air system is controlled to replace the outdoor fresh air into the room. Reduce the carbon monoxide conce...

AI Technical Summary

Problems solved by technology

[0004] The existing fresh air replacement method starts or stops simply according to the high or low carbon monoxide concentration. Although the carbon monoxide concentration in the room can be controlled within a reasonable range, it is easy to introduce fresh air with an unsuitable outdoor temperature into the room during the fresh air replacement process, thereby The room temperature changes too much, the temperature comfort decreases, and it cannot provide a suitable environment for the human body.

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