F - Mech Eng,Light,Heat,Weapons – 24 – H
Patent
F - Mech Eng,Light,Heat,Weapons
24
H
F24H 1/28 (2006.01) F23D 14/08 (2006.01) F23D 14/34 (2006.01) F23L 9/00 (2006.01) F23N 1/02 (2006.01)
Patent
CA 2738751
A water heating apparatus (10) uses a low range blower assembly (52) and a high range blower assembly (54), each providing a variable flow of premixed fuel and air to a burner assembly (42). Appropriate choice of the operating ranges of the blower assemblies can provide a high turndown ratio approximately equal to the product of the turndown ratios of each of the individual blower assemblies. Turndown ratios as high as 25:1 are achievable.
L'invention porte sur un appareil de chauffage d'eau (10) qui utilise un ensemble souffleur de gamme basse (52) et un ensemble souffleur de gamme élevée (54), chacun fournissant un écoulement variable de combustible et d'air prémélangés à un ensemble brûleur (42). Un choix approprié des gammes de fonctionnement des ensembles souffleurs peut fournir un taux élevé de variation de débit, approximativement égal au produit des taux de variation de débit de chacun des ensembles souffleurs individuels. Des taux de variation de débit aussi élevés que 25:1 peuvent être atteints.
Cassan Maclean
Lochinvar Corporation
LandOfFree
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