Inward fired ultra low NOX insulating burner flange

Patent metadata

Field	Value
Publication number	US-10533740-B2
Application number	US-201615204599-A
Country	US
Kind code	B2
Filing date	Jul 7, 2016
Priority date	Jul 9, 2015
Publication date	Jan 14, 2020
Grant date	Jan 14, 2020

Abstract

A collar configured to couple a burner to a partition plate is provided including a body having a diameter configured to couple to a diameter of the burner. A flange extends outwardly from the body. The collar is formed from a heat resistance material such that heat transfer between the burner and the partition plate is limited.

First claim

The invention claimed is:

1. A burner assembly, comprising:
a plurality of burners, each burner including a burner tube having an inlet and an outlet and a burner axis;
a partition plate arranged generally perpendicular to a horizontal plane defined by the plurality of burner axes, the partition plate including a plurality of partition openings complementary to and arranged coaxially with the plurality of burners, the partition plate having an embossment extending toward a downstream surface thereof adjacent each of the plurality of partition openings; and
a plurality of collars, each collar being mounted concentrically with a corresponding burner tube of the plurality of burners, between one of the plurality of burner tubes and a partition opening of the plurality of partition, each collar including a radially extending flange disposed within the embossment adjacent each of the plurality of partition openings; and
a retaining plate mounted adjacent the flange of each collar of the plurality of collars, the retaining plate being positioned upstream from the flange relative to a flow through the burner tube, and opposite the partition plate such that the movement of the flange is restricted by the partition plate and the retaining plate;
wherein a portion of both the collar and the burner tube is located between the embossment and a plane defined by an upstream surface of the partition plate.

2. The burner assembly according to claim 1 , wherein each of the plurality of collars comprises:
a body having an inner diameter substantially equal to an outer diameter of one of the plurality of burners.

3. The burner assembly according to claim 2 , wherein when the flange is positioned within the embossment, the flange does not extend beyond a plane defined by an adjacent surface of the partition plate.

4. The burner assembly according to claim 2 , wherein the flange is arranged at an end of the collar body.

5. The burner assembly according to claim 2 , wherein the flange is arranged along a central portion of the collar body.

6. The burner assembly according to claim 5 , wherein a portion of the body extends through an opening formed in the partition plate.

7. The burner assembly to claim 6 , wherein at least one opening is formed in the portion of the body, the at least one opening being configured to align with a carryover opening formed in the partition plate.

Assignees

• Carrier Corp

Inventors

• Shaw Robert
• Garloch Duane D
• Kamm Nicholas

Classifications

• F23D14/02

  Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone · CPC title

• F23D23/00

  Assemblies of two or more burners (gas burners with provision for a retention flame F23D14/26) · CPC title

• F23C5/02 Primary

  Structural details of mounting · CPC title

• F23C5/08

  Disposition of burners · CPC title