F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
122/84
F22B 7/00 (2006.01) F24D 3/08 (2006.01) F24H 1/46 (2006.01) F24H 9/00 (2006.01) F24H 9/18 (2006.01)
Patent
CA 1129278
ABSTRACT OF THE DISCLOSURE The present invention provides a two chamber boiler in which a burner chamber for a burner firing system and a combustion chamber with a fire grate for a solid fuel firing system are arranged laterally side by side in a common boiler water space enclosed by a horizontal outer boiler body and in which from both chambers two separate horizontal ancillary heating passages lead in the boiler water space above the chambers to the flue gas con- nector of the boiler, wherein: a) the combustion chamber com- prises a horizontal hollow body closed at its rear end and having an approximately elliptical cross-section with a vertical major diameter tapering downwards approximately conically to a fire grate, the cross-section below the fire grate merging into an ash space of box form, the combustion chamber being connected at the forward end, closed by doors, with an ancillary heating passage of rectangular cross-section arranged axially parallel above the combustion chamber in the boiler water space, the major cross-sectional width of which passage extends horizontally and which is internally provided with a vertically directed ribbing of comb-type cross section; b) the burner chamber comprises a horizontal round cylinder closed at its rear end, the longitudinal centre line of which lies substantially at the level of the longi- tudinal centre line of the combustion chamber, and is connected at the forward end, closed by doors, with an ancillary heating passage of rectangular cross-section arranged axially parallel above the burner chamber in the boiler water space, the major cross-sectional width of which passage extends horizontally and which is provided internally with vertically directed ribbing of comb-type cross-section; c) the outer boiler body consists of a metal sheet shaped in one piece by rolling into a hollow body and has a roundish cross-section differing from the circular form which consists of an upper, a lower and two lateral curves with larger radius of curvature which merge into one another above the two chambers and beneath the burner chamber with the aid of three transitional curves of smaller radius of curvature, the lower curve and the curve lying laterally beside the combustion chamber terminating at the ash space of the combustion chamber, and the height of the curve laterally beside the burner chamber being less than the height of the curve laterally beside the combustion chamber.
348862
Hoval Interliz Ag
Marks & Clerk
LandOfFree
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