Fuel-fired boiler for production of domestic hot water and for heating专利检索-旋流燃烧器燃烧器燃烧器和锅炉专利检索查询-专利查询网

Fuel-fired boiler for production of domestic hot water and for heating

阅读：421发布：2023-12-29

专利汇可以提供Fuel-fired boiler for production of domestic hot water and for heating专利检索，专利查询，专利分析的服务。并且A boiler has in inner cylindrical vessel through which water is passed for use as a domestic hot water. Surrounding this vessel is a heating chamber containing water and having a downwardly open cup-shaped portion receiving a burner having substantially tangentially directed fuel-expelling orifices. Surrounding the heating chamber is a cylindrical compartment subdivided by a helical member into a helical flow path for the water circulated through a heating system. A flue is provided having a vertical portion extending outside the compartment up through the insulated boiler housing and a horizontal portion passing through the chamber and opening centrally above the burner in the cup shaped lower portion of the chamber. This flue is provided with heat-absorbing ribs, as is the cup-shaped chamber portion, to pick up heat from the burner.，下面是Fuel-fired boiler for production of domestic hot water and for heating专利的具体信息内容。

权利要求

1. A boiler comprising: a closed vessel; means for passing water for domestic use through said closed vessel; a closed chamber surrounding the sides and base of said vessel and having a downwardly open cup-shaped portion below said vessel and forming a floor of said chamber, the cup cavity of said portion being located externally of said chamber; means defining a substantially cylindrical compartment at least partially surrounding said chamber; means for passing heating water through said compartment; burner means under said downwardly open cup-shaped portion for heating water in said chamber and thereby conductively heating water in said vessel and in said compartment; a flue for leading off exhaust vapors from said burner means and having a horizontal lower portion traversing said chamber and a vertical upper portion, said lower portion having walls in heat-conducting engagement with the water in said chamber; and a helical member defining a helical flow path centered on a vertical axis in said compartment.

2. The boiler defined in claim 1 wherein said chamber and said vessel are substantially cylindrical and said compartment is cup shaped with said helical member defining said path in the sides of said compartment, said means for passing heating water through said compartment comprising an inlet at the top of said compartment and an outlet at the lower end of said helical flow path.

3. The boiler defined in claim 1 wherein said chamber and said vessel are substantially cylindrical and said chamber completely surrounds said vessel.

4. The boiler defined in claim 1 wherein said burner means includes an annular burner having a plurality of peripheral fuel-expelling orifices directed substantially tangentially outwardly to form a spiralling flame within said cup-shaped lower portion of said chamber.

5. The boiler defined in claim 5 wherein said orifices are each directed at around 45* to a tangent of said burner.

6. The boiler defined in claim 1 wherein said downwardly open cup-shaped portion of said chamber is provided with heat-conducting ribs exposed to said burner means.

7. The boiler defined in claim 1 wherein said flue is provided at least at said horizontal lower portion with heat-conducting ribs adapted to pick up heat from flue gases.

8. The boiler defined in claim 1 wherein said means for passing water for domestic use includes a feed-through collar at the top of said vessel and an inlet conduit and an outlet conduit extending through said collar into said vessel, said boiler being double-walled at the top with one of the walls constituted by said vessel and said collar passing through and welded to both walls.

9. The boiler defined in claim 1, further comprising a housing surrounding said vessel, chamber and compartment, and thermal insulation lining said housing.

10. A boiler comprising: a closed vessel: means for passing water for domestic use through said closed vessel; a closed chamber surrounding the sides and base of said vessel and having a downwardly open cup-shaped portion below said vessel and forming a floor of said chamber, the cup cavity of said portion being located externally of said chamber; means defining a substantially cylindrical compartment at least partially surrounding said chamber; means for passing heating water through said compartment; burner means under said downwardly open cup-shaped portion for heating water in said chamber and thereby conductively heating water in said vessel and in said compartment; and a flue for leading off exhaust vapors from said burner means and having a horizontal lower portion traversing said chamber and a vertical upper portion, said lower portion having walls in heat-conducting engagement with the water in said chamber, said burner means including an annular burner having a plurality of peripheral fuel-expelling orifices directed substantially tangentially outwardly to form a spiralling flame within said cup-shaped lower portion of said chamber, said downwardly open cup-shaped portion of said chamber being provided with heat-conducting ribs exposed to said burner means, said flue being provided at least at said horizontal lower portion with heat-conducting ribs adapted to pick up heat from flue gases.

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Fuel-fired boiler for production of domestic hot water and for heating

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