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Control method and device of fresh air system and fresh air system

A fresh air system and control method technology, applied in the field of fresh air systems, devices, and fresh air system control methods, can solve the problems of complex structure, high cost, and mildew in ventilation pipes, etc. of the fresh air system

Active Publication Date: 2019-04-12
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Control method and device of fresh air system and fresh air system
  • Control method and device of fresh air system and fresh air system
  • Control method and device of fresh air system and fresh air system

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Embodiment Construction

[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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Abstract

The invention provides a control method and device of a fresh air system and the fresh air system. The control method of the fresh air system comprises the following steps that whether the concentration of indoor carbon dioxide is less than a preset concentration threshold value or not is judged; if the concentration of indoor carbon dioxide is less than the preset concentration threshold value and first humidity is equal to or greater than second humidity and a sum value of preset difference value humidity, a control valve is controlled to be turned off, a draught fan is turned on, and a gearwhen the draught fan is turned on is set as a set gear; if not, the draught fan is turned on, and the gear when the draught fan is turned on is determined according to the concentration of carbon dioxide; according to the gear when the draught fan is turned on, cooling load required by fresh air cooling of the fresh air system is acquired; and according to the cooling load and the temperature ofcooling water, the control valve is controlled. According to the control method and device of the fresh air system and the fresh air system, turning on of the fresh air system and the gear during turning can be accurately controlled, mildew in a ventilation pipe is prevented, the fresh air supply temperature can be accurately reduced through a cooling wet film; and meanwhile, the control method ofthe fresh air system 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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Application Information

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IPC IPC(8): F24F11/30F24F11/64F24F11/70F24F11/77F24F11/84F24F11/79F24F110/70F24F110/20F24F140/50F24F140/20F24F110/10F24F110/12
CPCF24F11/30F24F11/64F24F11/70F24F11/77F24F11/79F24F11/84F24F2110/10F24F2110/12F24F2110/20F24F2110/70F24F2140/20F24F2140/50Y02B30/70
Inventor 曹磊
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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