Control method and device for fresh air system, and fresh air system
A technology of fresh air system and control method, which is applied in heating and ventilation control system, heating and ventilation safety system, and control input related to air characteristics, etc. It can solve the problem that the ventilation pipe is prone to mildew, the structure of the fresh air system is complex, and the fresh air cannot be cooled and other problems, to achieve the effect of low cost, simple realization, and prevention of mildew
Active Publication Date: 2019-04-12
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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Problems solved by technology
[0003] In related technologies, the fresh air system is usually a full heat exchanger type, which uses the waste cold / waste heat exhausted to the outdoor air to cool / heat the fresh air, but this type of fresh air system has a complex structure and high cost
The fresh air system without a full heat exchanger cannot cool the fresh air entering the room
In addition, when the humidity in the ventilation duct of the fresh air system is high, mildew is prone to occur in the ventilation duct of the fresh air system
Method used
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[0054] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0055] The control method, device and fresh air system of the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0056] figure 1 is a structural diagram of a fresh air system according to an embodiment of the present invention, such as figure 1 As shown, the fresh air system includes: an air inlet device 13, which is used to extract outdoor air into the ventilation duct of the fresh air system; an air outlet device 14, which is used to send the fresh air processed by the f...
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The invention provides a control method and device for a fresh air system, and the fresh air system. The control method for the fresh air system comprises the steps that whether the concentration of indoor carbon dioxide is less than a preset concentration threshold or not is judged; if the concentration of the indoor carbon dioxide is less than the preset concentration threshold and the first humidity is equal to or greater than the sum value of the second humidity and the preset difference humidity, an ultrasonic atomizer is controlled to be closed, a fan is started, and the gear at the timeof fan starting is arranged to be a set gear; if the concentration of the indoor carbon dioxide is not less than the preset concentration threshold, the fan is started, and the gear at the time of fan starting is determined according to the concentration of the carbon dioxide; according to the gear at the time of fan starting, the cooling load required for fresh air cooling of the fresh air system is obtained; and the gear of the ultrasonic atomizer is controlled according to the cooling load and the temperature of cooling water. According to the control method and device for the fresh air system, and the fresh air system, starting and the starting gear of the fresh air system can be accurately controlled, and the interior of a ventilation pipe can be prevented from mildewing; the fresh air supply temperature can be accurately decreased; and meanwhile, the control method further has the advantages of simple implementation and low cost.
Description
technical field [0001] The invention relates to the technical field of electrical appliances, in particular to a control method and device for a fresh air system and the fresh air system. Background technique [0002] With the improvement of people's living standards, the demand for fresh air is becoming stronger and stronger. [0003] In the related art, the fresh air system is usually a total heat exchanger type, which cools / heats the fresh air by using the residual cold / heat discharged to the outdoor air, but this type of fresh air system has a complex structure and high cost. The fresh air system that does not include a full heat exchanger cannot cool the fresh air entering the room. In addition, when the humidity in the ventilation duct of the fresh air system is high, mildew is prone to occur in the ventilation duct of the fresh air system. Contents of the invention [0004] The present invention aims to solve one of the technical problems in the related art at lea...
Claims
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IPC IPC(8): F24F11/30F24F11/64F24F11/70F24F11/77F24F11/79F24F110/70F24F110/20F24F140/50F24F140/20F24F110/10F24F110/12
CPCF24F11/30F24F11/64F24F11/70F24F11/77F24F11/79F24F2110/10F24F2110/12F24F2110/20F24F2110/70F24F2140/20F24F2140/50Y02B30/70
Inventor 曹磊
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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