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A method and device for determining the service life of an air purifier filter element

A technology for air purifiers and filter element life, which is applied in the field of air purification, and can solve problems such as waste, different consumption speeds of filter elements, and different filtration efficiency of filter elements, and achieve the effects of reducing bandwidth occupation and resource consumption, reducing computing occupation, and ensuring stability

Active Publication Date: 2021-10-08
BEIJING QUALITY TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, since the consumption rate of the filter element is different under different air pollution conditions, and the filtration efficiency of the new and old filter elements is also different, the life of the filter element is affected by many factors, and it is not a simple countdown.
What's more, they can't give the exact filter element replacement time and reminder, and only rely on the user's personal experience to judge whether the filter element needs to be replaced
The user cannot accurately know the usage of the filter element, and failure to replace the filter element in time will lead to a significant drop in the air purification performance of the filter element, and there is a certain degree of waste in replacing the filter element before it is exhausted

Method used

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  • A method and device for determining the service life of an air purifier filter element
  • A method and device for determining the service life of an air purifier filter element
  • A method and device for determining the service life of an air purifier filter element

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Embodiment Construction

[0047] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0048] Such as figure 1 and 2 As shown, a method of determining the life of an air purifier filter element includes:

[0049] From the moment of starting up, the main control module repeatedly performs the following series of operations at a short time interval Δt:

[0050] Record the current fan speed r(t);

[0051] Read the data of the air inlet air quality sensor and the air outlet air quality sensor once, and get the mass concentration c of the particulate matter in the indoor air and the purified air at the corresponding time in (t) and c out (t).

[0052] Since the air quality sensor will give the mass concentration of particles of different diameters in the air, such as the mass conce...

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Abstract

The invention discloses a method and a device for determining the life of an air purifier filter element. According to the life of the filter element, the current air volume can be calculated; the concentration of pollutants in the air before purification is recorded, and the concentration of pollutants in the air after purification is calculated; starting from the time of power-on, repeat the following series of operations at a long time interval : Obtain the current filter element life; calculate the filter element consumption according to the concentration of pollutants in the air before purification, the concentration of pollutants in the air after purification, the wind speed distribution and the filter efficiency function; calculate the new filter element according to the filter life and filter consumption. Life; update and save the filter life. The invention has the beneficial effects that the service life of the current filter screen can be calculated more accurately.

Description

technical field [0001] The invention belongs to the technical field of air purification, and in particular relates to a method and a device for determining the service life of an air purifier filter element. Background technique [0002] Most of the air purifiers currently on the market use a fixed time method to remind users whether they need to replace the filter element, that is, the effective use time of the filter element is set in advance, and then a simple countdown is used to calculate the filter element life. However, since the consumption rate of the filter element is different under different air pollution conditions, and the filtration efficiency of the new and old filter elements is also different, the life of the filter element is affected by many factors, and it is not a simple countdown. What's more, they can't give the exact filter element replacement time and reminder, and only rely on the user's personal experience to judge whether the filter element needs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/00B01D46/00
CPCB01D46/0086G06Q10/20
Inventor 王绍鑫陈矿吴建东
Owner BEIJING QUALITY TECH CO LTD
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