F - Mech Eng,Light,Heat,Weapons – 24 – D
Patent
F - Mech Eng,Light,Heat,Weapons
24
D
237/11, 62/25
F24D 3/00 (2006.01) F25B 30/04 (2006.01) F25B 33/00 (2006.01)
Patent
CA 1185578
ABSTRACT OF THE DISCLOSURE: A heating system incorporating an absorption-type heat pump where the generator is heated by an aerated gas burner combusting a fuel-lean mixture whose efficiency is very high both at full and at part load and whose flue gas has a very low nitrogen monoxide and nitrogen dioxide content. The mixture of fuel gas and combustion air flows from at least one mixer tube into a mixer and is fired on the burner plate, which is cooled by a rich solution and arranged at a distance of less than 50 mm. from the genera- tor. When the generator is of the vertical type, a burner is preferably installed where the burner plate surrounds the generator concentrically at such a distance from the bottom of the generator that only the central section of the generator is directly heated. Preferably two heat exchangers are located in the flue duct downstream of the generator to recover the waste heat, indlucing the heat of condensation. A second burner upstream of the first heat exchanger will light up and replace the first-mentioned burner for heating the generator, if the temperature falls below a preset lower temperature limit so that the heating system will meet demand even at very low outdoor temperatures.
388961
Jannemann Theo
Sommers Hans
Robic Robic & Associes/associates
Ruhrgas Aktiengesellschaft
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