Normal position zero gas back-blowing type CEMS (continuous emission monitoring system) probe on-line calibration method and device
A technology of probe online and calibration method, which is applied in the direction of measuring devices, material analysis through optical means, instruments, etc., can solve problems such as the inability to balance the intake of flue gas, avoid direct contact with flue gas, ensure reliability, reduce The effect of small smoke interference
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[0048] Embodiment: As shown in the figure, an in-situ zero-air backflushing type CEMS probe online calibration device, which includes a direct measurement type smoke probe 1, a probe chassis 2, a shielding device and a calibration pool 5;
[0049] The said direct measurement type smoke probe 1 is a pipe body, and its front end is provided with a measurement area 6, the said measurement area is a measurement port with an opening downward, and an air curtain generator 9 is embedded in the probe 1 before and after the measurement area. , the air curtain generator 9 is communicated with the purified compressed air input pipe 10; wherein, the air curtain generator 9 at the rear end of the measurement area 6 is embedded with an ultraviolet quartz window 8, and the ultraviolet quartz window 8 is installed with an O-ring 26 to seal, located in the probe 1. An ultraviolet quartz lens 7 is embedded in the groove at the top, and an O-ring 26 is installed on the ultraviolet quartz lens 7 t...
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