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Fresh air system control method, device and fresh air system

A technology of a fresh air system and a control method, applied in the field of the device, the control method of the fresh air system, and the fresh air system, can solve the problems of high cost, inability to cool the fresh air, and complex structure of the fresh air system.

Active Publication Date: 2021-06-18
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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  • Fresh air system control method, device and fresh air system
  • Fresh air system control method, device and fresh air system
  • Fresh air system control method, device 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 present invention proposes a fresh air system control method, device, and fresh air system. The control method of the fresh air system includes: judging whether the concentration of indoor carbon dioxide is less than a preset concentration threshold; if so, the first humidity is equal to or greater than the second humidity and The sum of the preset difference humidity will control the control valve to close, turn on the fan, and set the gear when the fan is turned on as the set gear; if not, turn on the fan, and determine the time when the fan is turned on according to the concentration of carbon dioxide. According to the gear position when the fan is turned on, the cooling load required for the fresh air cooling of the fresh air system is obtained; the control valve is controlled according to the cooling load and the temperature of the cooling water. The control method and device of the fresh air system and the fresh air system of the present invention can accurately control the opening of the fresh air system and the gear when it is turned on, and prevent mildew in the ventilation pipe; it can accurately reduce the temperature of the fresh air supply by cooling the wet film; at the same time, The method also 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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Patent Type & Authority Patents(China)
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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