Method for rapidly evaluating gas accumulation adsorption quantity of filter screen
A technology of adsorption capacity and adsorption capacity, which is used in measurement devices, testing of mechanical components, permeability/surface area analysis, etc., which can solve the problems of inability to quickly obtain filters, release more gaseous pollutants, and cause large environmental pollution. Achieve the effect of reducing the risk of customer complaints, reducing profit losses, and improving comprehensive evaluation
Pending Publication Date: 2022-01-28
YANGZHOU POLYTECHNIC INST
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Problems solved by technology
The test period is long, and more gaseous pollutants need to be released
It is impossible to quickly obtain data on the adsorption capacity of the filter for gaseous pollutants, and the environmental pollution is relatively large
Method used
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Embodiment 1
[0026] Step 1: Tail three pieces from the pendor with a disc sampler from the purifier to be tested 2 The filter sheet is then placed in an aging tank of 35 ° C and 60% humidity.
[0027] Step 2: Adjust the humidity and temperature within the adsorption performance test system; the flow and concentration of the polluted gas is adjusted according to the applicable area of the purifier to be measured;
[0028] Step 3: Put the filter sheet after the aging manipulation of the step two to adjust the adsorption performance test system (eg figure 1 As shown in, the external bolt clip with rubber is tightened, and the airtightness is tested;
[0029] The contaminated gas and air for adjusting the humidity are mixed by the raw material gas system 3 to obtain a temperature of 28 ° C, a humidity of 50%, a concentration of 1.198 ppm, a flow rate of 0.4 m / min; gaseous contaminant enters a pre-filtered mesh? Gas passage 2, the gaseous contaminant passes through the filter sheet is adsorbed ...
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The invention relates to a method for rapidly evaluating the gas accumulation adsorption quantity of a filter screen. The method comprises the following steps: firstly, taking a filter screen sheet, and aging for 12 hours; then adjusting the humidity, the temperature and the flow and the concentration of pollution gas in an adsorption performance testing system; putting the filter screen sheet subjected to aging treatment into the adjusted adsorption performance testing system; sampling every 0.5-5 min, and testing the sample concentration; drawing a time-concentration curve graph according to the obtained data, and obtaining the adsorption capacity of the filter screen sheet according to the adsorption capacity corresponding to the intersection point of the curve and the bisector of the tangent line of the initial point and the tail end point of the curve; and calculating the cumulative purification capacity CCM of the filter screen according to the formula: CCM=the area of the filter screen sheet*12.5*the adsorption capacity of the filter screen sheet / 3. According to the invention, the method is easy and convenient to operate, rapid and practical, the gaseous pollutant accumulative purification amount of a composite material can be rapidly tested, and comprehensive evaluation of product performance is perfected; and the method not only can be suitable for laboratories, but also can be directly applied to quality detection of existing products on the market, and is wide in application range.
Description
Technical field [0001] The present invention relates to the field of air purifier gas returns measurement technology, and in particular, a method of rapid assessment of filter gas accumulation amount. Background technique [0002] At present, most household air purifier filters require gaseous pollutants, especially formaldehyde removal. In order to streamline the filter structure, many manufacturers are selected to prepare a composite filter to prepare a composite filter to prepare a composite mesh to prepare a composite mesh to prepare a composite mesh. According to the National Air Purifier Standard GB / T 18801-2015, the test amount of the test mesh gas-state contaminant has taken a long period of time to use the gas bin. The test cycle is long, and there is a need to release more gaseous pollutants. Fast acquisition filter is unable to achieve data on gaseous pollutant adsorption capacity, and the environmental pollution is large. [0003] Therefore, it is necessary to devel...
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IPC IPC(8): G01N15/08G01M13/00
CPCG01N15/08G01M13/00G01N2015/084
Inventor 姜晔周龙生肖伽励
Owner YANGZHOU POLYTECHNIC INST