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Central ventilation system and control method and control device

A fresh air system and control device technology, applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc., can solve this waste, users can not accurately grasp the cleaning or replacement time of different filters, and affect the fresh air system. Air purification effect and other issues to achieve the effect of avoiding cost waste and avoiding air purification effect

Active Publication Date: 2016-05-18
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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Problems solved by technology

In the existing technology, according to the pressure difference to remind the dirty blockage or to remind at regular intervals, the user cannot accurately grasp the cleaning or replacement time of different filters. If it is not cleaned or replaced for a long time, it will affect the purification of the air by the fresh air system Effect, if the filter is replaced prematurely, the filter is not fully used, resulting in waste of cost

Method used

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  • Central ventilation system and control method and control device
  • Central ventilation system and control method and control device
  • Central ventilation system and control method and control device

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Embodiment Construction

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0014] refer to figure 1 , the embodiment of the present invention provides a fresh air system control device 10 , including: a processing unit 101 and a signal output unit 102 connected to the processing unit 101 .

[0015] Wherein, the processing unit 101 is configured to determine the concentration level of the filtering object. The so-called filtering object refers to the substance that is filtered out by the filter screen in the air to be filtered (gener...

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Abstract

The invention provides a central ventilation system and a control method and a control device, relates to the field of control of central ventilation systems, can output warning signals to different filter screens in the central ventilation system to enable the filter screens to be fully used without causing cost waste, and guarantees the air purifying effect of the central ventilation system. The control method comprises the following steps: a concentration grade of a filtered object is determined; the limit working time of the nth filter screen in N filter screens included by the central ventilation system is determined according to the concentration grade of the filtered object; the effective working time of the nth filter screen in N filter screens is obtained; and when the effective working time of the nth filter screen in N filter screens reaches the limit working time, the warning signals are output. The control method is applied to control of the central ventilation system.

Description

technical field [0001] The invention relates to the field of fresh air system control, in particular to a fresh air system, a control method, and a control device. Background technique [0002] In recent years, the harm of air pollution to human health has attracted more and more attention, and the fresh air system has been recognized by the market due to its purifying effect on the air. The fresh air system filters the air through the filter, sends the filtered air into the room, and sends the indoor air to the outside at the same time, so as to realize the purification and circulation of the air. [0003] After the filter is used for a period of time, the filter objects will gather on the surface of the filter, which will affect the filtering effect and ventilation effect of the filter. In the prior art, the pressure difference on both sides of the filter screen is detected, and if the pressure difference on both sides of the filter screen exceeds a preset threshold, a wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
Inventor 矫晓龙张献林王天鸿
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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