Combustion cell for a heating system
AssigneeFERROLI S.p.A.
InventorAlessandro MAROCCOLO
Life of this patent
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Abstract
A combustion cell (1) for a heating system comprising: a fan unit (2), configured to supply a flow of premixed air-gas required for the combustion, a lid (3); a burner, (5) comprising a central perforated zone (501) and a peripheral zone (502) free of holes; a distributor (6), comprising a peripheral part provided with apertures (601) and positioned upstream of the burner (5) for feeding the flow of premixed air-gas to the burner (5), with its peripheral part facing towards the peripheral zone (502) of the burner (5); a flange (7) configured to connect the lid (3) to the burner (5); a coil (8) for exchanging heat, wherein the flange (7) has a receiving surface (701) which receives a first spiral (801) of the coil (8) to exchange heat in direct contact with the flange (7).
Claims20
A combustion cell for a heating system, comprising:
- a fan assembly configured to supply a premixed air-gas flow required for combustion;
- a combustion chamber extending along a longitudinal axis from a first end to a second end;
- a lid for closing the first end of the combustion chamber;
- a burner having a convex profile and including a central region and a peripheral region, wherein the central region is perforated whilst the peripheral region is hole-free;
- a distributor having a convex profile and including a peripheral region provided with apertures, the distributor being located upstream the burner to feed the premixed air-gas flow to the burner and being arranged so that the peripheral region of the distributor faces the peripheral region of the burner;
- a flange configured for connecting the lid to the burner;
- a heat exchanger coil arranged around the longitudinal axis to surround the combustion chamber and provided with a plurality of wraps including a first wrap proximal to the burner and a last wrap distal to the burner, wherein the flange provides a receiving surface accommodating the first wrap of the heat exchanger coil in direct contact thereto.
A method heating water in a heating system, comprising the following steps:
- providing a fan assembly, a lid, a convex shaped burner, and a convex shaped distributor;
- providing a heat exchanger coil, the heat exchanger coil extending around a longitudinal axis to surround a combustion chamber and having a plurality of wraps including a first wrap proximal to the burner and a last wrap distal to the burner;
- providing a lid for closing a first end of the combustion chamber;
- providing the burner with a central perforated region and with a peripheral hole-free region;
- providing the distributor with a peripheral region provided with apertures and arranging the distributor upstream the burner, so that the peripheral region of the distributor faces the peripheral region of the burner;
- providing a flange connected to the lid and to the burner, wherein the flange has a receiving surface and accommodates the first wrap of the heat exchanger coil in direct contact thereto;
- circulating water in the heat exchanger coil;
- supplying a premix of combustible gas and air to the burner, through the distributor.
A combustion cell for a heating system, comprising:
- a fan assembly, configured to supply a premixed air-gas flow required for combustion;
- a combustion chamber extending along a longitudinal axis from a first end to a second end;
- a lid, for closing the first end of the combustion chamber;
- a burner, including a perforated region;
- a distributor, including a region provided with apertures, the distributor being located upstream the burner to feed the premixed air-gas flow to the burner;
- a flange configured for connecting the lid to the burner;
- a heat exchanger coil arranged around the longitudinal axis to surround the combustion chamber and provided with a plurality of wraps including a first wrap proximal to the burner and a last wrap distal to the burner, wherein the flange provides a receiving surface accommodating the first wrap of the heat exchanger coil in direct contact thereto, wherein the fan assembly is connected to the flange, so that a burner assembly formed by the burner and the distributor can be accessed by removing the lid, without removing the fan assembly.
Dependencies are inferred from the claim text.