Control method and control system for air replacement in ward

Abstract

The invention discloses a control method and a control system for air replacement in a ward. The method is characterized in that the indoor and outdoor air quality is monitored; when the outdoor air quality is poor, the indoor air bacteria concentration level is detected, and when the indoor bacteria concentration is higher than a first threshold value, an air purification device is started; whenthe indoor air quality is lower than the outdoor air quality, the humidity of the indoor and outdoor air is collected; if the outdoor humidity level is higher than the indoor humidity level, an indoorventilation system is started; and if the outdoor humidity level is lower than the indoor humidity level, the outdoor humidity and a second threshold value are determined; and if the outdoor humiditylevel is lower than the second threshold value, an electric air window is automatically opened for ventilation, and otherwise, an indoor ventilation system is started. According to the method and thesystem, the working mode of air replacement and purification in the ward is selected according to the outdoor environment control, thereby improving the ventilation effect in the ward, and realizingthe purification of peculiar smell and bacteria in the air in the ward.

Description

technical field [0001] The invention relates to the technical field of ventilation control, in particular to a control method and control system for air replacement in a ward. Background technique [0002] With the development of global industrialization and increasing population, ambient air pollution is increasing. Dust, bacteria, peculiar smell and harmful gas in the air have a direct impact on human health, especially indoor air quality is increasingly concerned by people. The quality of the air in the hospital ward directly affects the health of patients and accompanying staff. Wards are densely populated, and indoor breeding and residual viruses and bacteria are likely to cause secondary pollution and infection. It is of great significance to prevent and control the quality of indoor air in wards. [0003] With the development of science and technology, automatic control has become the mainstream of current development. Behind the rapid rise of automatic control is p...

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Problems solved by technology

[0003] With the development of science and technology, automatic control has become the mainstream of current development. Behind the rapid rise of automatic control is people's ever-increasing demand for improving their quality of life. Electric windshields are also gradually becoming popular, but the electric windshields in the existing technology It has the following disadvantages: the external natural wind is introduced into the room, but the external air quality, humidity, wind force and other indicators are ignored, and it cannot provide better air. It is only a "porter of natural air", so in fact it is only The circulation and replacement of the air in the ward through the electric window has been unable to meet people's needs, and it is not enough to eliminate and purify the peculiar smell and bacteria in the ward

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