Condensation apparatus
AssigneeParticle Measuring Systems, Inc.
InventorsBoris Zachar Gorbunov, Harald Wilhelm Julius Gnewuch
Life of this patent
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Abstract
The invention provides an apparatus for increasing the size of gas-entrained particles in order to render the gas-entrained particles detectable by a particle detector, the apparatus comprising an evaporation chamber (2) and a condenser (7); the apparatus is configured so that vapour-laden gas from the evaporation chamber can flow into the condenser and condensation of the vaporisable substance onto gas-entrained particles in the condenser takes place to increase the size of the particles so that they are capable of being detected by a particle detector.
Claims17
Apparatus for increasing the size of gas-entrained particles in order to render the gas-entrained particles detectable by a particle detector, the apparatus comprising:
- an evaporation chamber;
- a condenser in fluid communication with the evaporation chamber and having an outlet for connection to a particle detector;
- a heating element and a porous support each of which is disposed within the evaporation chamber, the porous support carrying thereon a vaporisable substance and the heating element being heatable to vaporise the vaporisable substance to form vapour within the evaporation chamber;
- wherein the porous support surrounds the heating element;
- a first inlet for admitting a stream of carrier gas into the evaporation chamber to carry vapour through to the condenser;
- a second inlet which is downstream of the porous support and through which a stream of sample gas containing gas-entrained particles can be introduced;
- the apparatus being configured so that condensation of the vaporisable substance onto the gas-entrained particles in the sample gas takes place in the condenser to increase the size of the particles so that they are capable of being detected by a particle detector.
Dependencies are inferred from the claim text.