Device and method for testing ozone removal performance of air purifier

Abstract

The invention provides a device and method for testing the ozone removal performance of an air purifier. The device comprises a test cabin which is used for accommodating a to-be-tested air purifier,and simulating an actual indoor use environment, an ozone generation device which is communicated with the air inlet of the test cabin and is used for continuously conveying ozone into the test cabin;and an exhaust purification device which is communicated with the air outlet of the test cabin, and the exhaust purification device is communicated with the outside. According to the invention, the requirements of a dynamic balance method can be met, continuous pollutant generation and dynamic balance testing are provided, the device is closer to the working condition of the actual indoor environment, and the ozone removal performance of the air purifier can be truly and objectively reflected.

Description

technical field [0001] The present disclosure relates to the field of performance testing of air purifiers, in particular to a test device and method for deozone performance of an air purifier. Background technique [0002] In recent years, the problem of ozone pollution has gradually emerged in our country, and the concentration has been increasing year by year. Especially in the summer high temperature season, ozone (O3) often "forces" PM2.5, becoming an important source of air pollution. According to the 2019 China Ecological Environment Status Bulletin, the number of days with O3 as the primary pollutant exceeding the standard accounted for 41.8% of the total number of days exceeding the standard, second only to PM2.5 at 45%. Compared with PM2.5 pollution, ozone pollution is more subtle, because sunny days with few clouds and no wind will accelerate photochemical reactions and cause ozone concentrations to exceed the standard. Ozone is irritating and damaging to the eye...

AI Technical Summary

Problems solved by technology

Although the current version of the standard clarifies the purification performance test methods such as clean air rate (CADR) and cumulative purification capacity (CCM) of gaseous pollutants, the ozone in the actual indoor environment is continuously input or generated. The generation method of pollutants that require initial concentration deviates from the actual state of pollutants; O3 is a gaseous pollutant that can be decomposed at room temperature. The standard uses the method of "single injection not exceeding 100 times the limit" to conduct CCM tests on gaseous pollutants However, the natural decomposition of ozone is more significant at high concentrations, which seriously interferes with the test of the ozone performance of the air purifier. Therefore, the current test method for the purification performance of gaseous pollutants is not suitable for the evaluation of the ozone removal performance of the air purifier.

In addition, no other materials have been found to report the evaluation method for this type of ozone purification performance, which brings great troubles to the development and application of air purifiers with deozone function, and hinders people from responding to the increasingly prevalent ozone pollutants in a timely manner. impact on human health and development

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