Sampling device and testing method for sulfur trioxide in flue gas
A technology of sulfur trioxide and sampling devices, which is applied in the direction of sampling devices, measuring devices, and the preparation of test samples, can solve the problems of undetectable concentrations and low measured values, and achieve simple and efficient testing processes, improved accuracy, and The effect of improving accuracy
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[0044] Example 1:
[0045] Test the concentration of sulfur trioxide in the flue gas at the outlet of a denitration device in a power plant.
[0046] according to figure 1 As shown, connect the sulfur trioxide sampling device. After the sampling device is connected, check the air tightness of the entire device.
[0047] Heat the electric heating sampling gun, the secondary filter and the high temperature suction pump to 210℃, then pour ice water into the ice bath container; pour 100ml, 50ml and 50ml of 80% isopropanol into the tertiary absorption bottle to absorb Add 2 to 3 drops of thorium reagent and 0.1ml of barium perchlorate standard solution in the third-level absorption bottle, place desiccant in the drying bottle, and place the third-level absorption bottle in an ice water bath. The concentration of thorium reagent solution is 0.2g / L, and the concentration of barium perchlorate standard solution is 0.001mol / L. The color of the liquid in the first two-stage absorption bott...
Example Embodiment
[0052] Example 2:
[0053] Test the concentration of sulfur trioxide in flue gas at the outlet of a desulfurization device in a power plant.
[0054] according to figure 1 As shown, connect the sulfur trioxide sampling device. After the sampling device is connected, check the air tightness of the entire device.
[0055] Heat the electric heating sampling gun, secondary filter and high temperature air pump to 220℃, then pour ice water into the ice bath container; pour 100ml, 50ml and 50ml of 80% isopropanol into the tertiary absorption bottle to absorb Add 2 to 3 drops of thorium reagent and 0.2ml of barium perchlorate standard solution in the third-level absorption bottle, place desiccant in the drying bottle, and place the third-level absorption bottle in an ice water bath. The concentration of thorium reagent solution is 0.3g / L, and the concentration of barium perchlorate standard solution is 0.001mol / L. The color of the liquid in the first two-stage absorption bottle is colorl...
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