B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
183/0.5
B01D 5/00 (2006.01)
Patent
CA 1186244
APPARTUS FOR SEPARATING FOREIGN MATTER FROM A GAS WITH A HEAT EXCHANGER ABSTRACT OF DISCLOSURE: A gas cleaning and heat transfer apparatus is used with a hood assembly associated with cooking equipment to separate foreign matter from gas moving through the hood assembly and transferring heat from the gas to a fluid. The apparatus has a plurality of gas cleaning units that concurrently operate to separate foreign matter from the gas and reduces the tem- perature of the gas. Each cleaning unit has a heat conducting wall surrounding a tubular passage for carrying gas and foreign matter. A plurality of helical elements located in the passage are positioned in angular relationship relative to each other so that the gas moving through the passage is divided into separate helical gas streams. A jacket having a fluid accom- modating chamber surrounds the cylindrical wall. Heat from the gas in the passage is transferred through the wall to the fluid. The foreign matter is separated from the gas as it moves in the spiral path through the passage by the combined mechanisms of centrifugal force, adhesion, condensation, and impaction. The surrounding fluid cools the gas adjacent the inside of the wall causing condensation of vapors carried by the gas on the wall to facilitate the collection of foreign matter on the wall. The collected foreign matter flowing along the wall is carried by the moving gas to an annular collecting member located adjacent the exit end of the wall. Cleaned gas flows through the annular collecting member to the environment outside the apparatus.
417271
Century 21 Pollution Control Inc.
Mantha & Seaby
LandOfFree
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