Honeycomb carrier evenness detection method, system and device
A technology of honeycomb carrier and detection system, which is applied in measurement devices, suspension and porous material analysis, instruments, etc., can solve the problem of large measurement error of through hole uniformity, and achieve the effect of solving large measurement error.
Inactive Publication Date: 2018-12-18
HENAN UNIV OF SCI & TECH
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Problems solved by technology
[0007] The purpose of the present invention is to provide a method for detecting the uniformity of a honeycomb carrier to solve the problem of relatively large measurement errors in the uniformity of the through holes of the honeycomb carrier in the prior art; in addition, the purpose of the present invention is to provide a Detection system and device
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[0028] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0029] Specific embodiment 1 of the honeycomb carrier through-hole uniformity measurement system of the present invention, as Figure 1 to Figure 3 As shown, the honeycomb carrier through-hole uniformity measurement system includes a regulated air source 1 and a measuring tube 2. The regulated air source 1 can be an air compressor or a high-pressure gas storage tank in a factory building. One end of the measuring tube 2 is connected to the stable The air outlet of the compressed air source 1 is connected, and the other end is provided with a joint 4. The joint 4 includes a plurality of measurement positions, and each measurement position corresponds to a certain position of the radial section of the honeycomb carrier 5. When performing measurement work, When the joint 4 is at each measurement position, the mouth edge of the joint 4 is close to the radial...
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The invention provides a honeycomb carrier evenness detection method, system and device. The honeycomb carrier evenness detection method comprises the following steps: (1) firstly laminating a measurement pipe on a certain location of a radial section of the honeycomb carrier, and then enabling the gas in the honeycomb carrier laminated with the measurement pipe to flow by importing gas into the measurement pipe or exhausting the gas from the measurement pipe, and measuring the pressure loss or velocity change of the pass flowing through the location; (2) repeating the step (1), orderly measuring various locations of the radial section of the honeycomb carrier; and (3) judging the deviation degree of each measurement value and the average value according to the results obtains in the step(1) and step (2), thereby obtaining the through hole evenness of the whole honeycomb carrier. The deviation degree between the measurement value and the average value is judged by importing gas into different locations on the radial section of the honeycomb carrier and measuring the pressure loss of the gas flowing through the location, and the problem that the through hole evenness measurement error of the honeycomb carrier is large in the prior art is solved.
Description
technical field [0001] The invention relates to a method, system and device for detecting the uniformity of a honeycomb carrier. Background technique [0002] As the country pays more and more attention to environmental issues, pollutant post-treatment technology is becoming more and more important. In order to meet the requirements of national environmental protection regulations, SCR catalytic systems need to be installed in the exhaust pipes of general vehicles to remove harmful gases in the exhaust. Among them, the SCR out-of-stock catalyst is widely used in the SCR catalytic system to reduce the NO in the automobile exhaust X etc. into harmless gas. [0003] The SCR out-of-stock catalyst is a honeycomb carrier, and the exhaust gas passes through the porous honeycomb carrier and reacts inside it, so the pore quality of the honeycomb carrier affects the catalytic efficiency of the catalyst. In the process of actual production or use, some pores of the honeycomb carrier ...
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Login to View More IPC IPC(8): G01N15/08
CPCG01N15/088
Inventor 杜慧勇杨丰源刘建新李民苗家轩王站成徐斌
Owner HENAN UNIV OF SCI & TECH