PROBE FOR TAKING SAMPLES OF GASES WITH HIGH PARTICLE CONTENT

摘要

Probe for taking samples of gases with a high content in particles which, by their nature, tend to cause deposits or accumulations on standard probes, either in the suction aperture, or inside the conduit which conveys the sample. The invention comprises a conduit (1) with a circular cross-section, traversed internally and longitudinally by a shaft (3), with a helix screw (4) coupled to one end thereof and which rotates in such a direction that the spirals advance towards the end of the probe positioned in the process current. The helix screw produces a cylindrical cutting surface in any deposit of material that could block the suction aperture, ensuring the gas flow. In addition the helix ejects material that could otherwise infiltrate the probe.