Method for determining applicable area of fresh air purifier based on purification performance

Abstract

The invention provides a method for determining the applicable area of a fresh air purifier based on purification performance. The method comprises the following steps: S1, a fresh air purifier performance test system capable of providing a micro-positive pressure test environment is adopted for testing the purification performance index of a fresh air purifier, a background pollutant is introduced into a test simulation cabin in which the fresh air purifier is placed, a target pollutant is stably generated at a fresh air inlet outside the cabin, and concentrations corresponding to a pluralityof time points between the initial concentration and the final concentration are measured; and S2, a pollutant diffusion transmission process model is established based on mass conservation of pollutants in the cabin, the purification performance index is calculated according to a test result, and the applicable area of the fresh air purifier under a set air volume condition or a set working condition is deduced according to the purification performance index. According to the method, calculation formulas under various pollutant conditions are provided, the final applicable area is comprehensively considered according to calculation results under all the conditions, and the problem that the applicable area can only be obtained through simple estimation at present is solved.

Description

technical field [0001] The present disclosure relates to the field of fresh air purifiers, and in particular to a method for determining an applicable area of ​​a fresh air purifier based on purification performance. Background technique [0002] With the continuous improvement of living standards, people put forward higher requirements for a healthy living environment, especially for indoor air quality. Affected by the decline of outdoor air quality and changes in temperature and humidity, workplaces and family living rooms are often closed, and factors such as the gathering of people, the release of pollutants from decoration materials, and poor air mobility can easily cause indoor air pollution, which is harmful to human health. pose a serious threat. [0003] The fresh air purifier introduces the filtered outdoor fresh air into the room through the fan, and discharges the indoor dirty air to the outside to improve the indoor air quality by replacing the indoor and outdo...

AI Technical Summary

Problems solved by technology

[0010] The existing fresh air purifier test system ignores the influence of parameters such as the internal and external pressure of the system, the fresh air volume, the relative position between the indoor air supply port and the air exhaust port, and the size of the test space on the distribution of the indoor pollutant concentration flow field, and the sampling points are Whether the measured concentration can represent the diffusion and transmission characteristics of pollutants in actual use needs to be further verified. It is impossible to scientifically and systematically simulate and evaluate the purification performance of the fresh air purifier, which has brought great difficulties to people in determining the applicable area of ​​the fresh air purifier. Errors can easily lead to excessive clean fresh air volume, resulting in waste of installation costs, floor space and energy consumption, and low clean fresh air volume cannot meet the needs of indoor air purification.

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