Performance test system for air filter

Abstract

The invention discloses a performance test system for an air filter. An air filtering mechanism communicates with an air box through an air duct; the air box communicates with an air blower; a hole isformed in the air box side wall, corresponding to the area where the air filter is placed, inside the air box; a first pressure sensor and a particle sensor are arranged in the upstream position of the area inside the air box; a second pressure sensor and a particle sensor are arranged in the downstream position of the area inside the air box; incoming air is efficiently filtered by the air filtering mechanism, clean and impurity-free air is obtained, and the clean air enters the air box through the air duct; an automatic dust spraying unit sprays dust towards the hole in the air box side wall; the upstream pressure of the air filter is detected by the first pressure sensor; the upstream dust particle quantity of the air filter is detected by the first particle sensor; the downstream pressure of the air filter is detected by the second pressure sensor; the downstream dust particle quantity of the air filter is detected by the second particle sensor; and the number of dust particles filtered by the air filter is calculated by a processing unit according to the upstream pressure, the downstream pressure, the upstream dust particle quantity and the downstream dust particle quantity.

Description

technical field [0001] The invention relates to the technical field of air filters, in particular to an air filter performance testing system. Background technique [0002] The original filter performance testing technology has the following problems: 1. Since the filter efficiency is tested by measuring the weight of impurities, the test results cannot fully reflect the ability of the filter to remove impurities, and can only measure the filter’s ability to remove impurities. The weight efficiency of impurities cannot measure the filtration efficiency of the filter to filter impurities of different particle sizes, that is, it cannot reflect the filtration accuracy of the filter. 2. The collection of samples is affected by complex environmental conditions, insufficient sample collection, inaccurate and secondary pollution of samples, resulting in large test errors. 3. It is inconvenient to change the product type, and there is no observation window. Fourth, the pressure po...

AI Technical Summary

Problems solved by technology

[0002] The original filter performance testing technology has the following problems: 1. Since the filter efficiency is tested by measuring the weight of impurities, the test results cannot fully reflect the ability of the filter to remove impurities, and can only measure the filter’s ability to remove impurities. The weight efficiency of impurities cannot measure the filtration efficiency of the filter to filter out impurities of different particle sizes, that is, it cannot reflect the filtration accuracy of the filter

2. The collection of samples is affected by complex environmental conditions, insufficient sample collection, inaccurate and secondary pollution of samples, resulting in large test errors

3. It is inconvenient to change the product type, and there is no observation window

Four, the pressure point is single, the error is large

5. The pipe structure and materials are poor, and the air duct resistance is large

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