Low nox gas burners with carryover ignition

Patent metadata

Field	Value
Publication number	US-2016290634-A1
Application number	US-201615091765-A
Country	US
Kind code	A1
Filing date	Apr 6, 2016
Priority date	Apr 6, 2015
Publication date	Oct 6, 2016
Grant date	—

Abstract

A burner assembly is provided including a plurality of burners. Each burner includes a burner tube having an inlet, an outlet, and a burner axis. A partition plate is arranged generally perpendicular to a horizontal plane defined by the plurality of burner axes. The partition plate includes a plurality of partition openings complementary to and arranged coaxially with the plurality of burners. An igniter is located near the plurality of burners and is configured to ignite a fuel and air mixture provided at the outlet of the burners. An ignited carryover includes a substantially identical first opening and second opening formed in the partition plate adjacent the igniter. The first opening and second openings are sized such that a sufficient amount of the fuel and air mixture reaches the igniter without cooling the igniter.

First claim

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; and an igniter located near the plurality of burners, the igniter being configured to ignite a fuel and air mixture provided at the outlet of the burners, wherein an igniter carryover including a substantially identical first opening and second opening is formed in the partition plate adjacent the igniter, the first opening and second opening being sized such that a sufficient amount of the fuel and air mixture reaches the igniter without cooling the igniter.

2 . The burner assembly according to claim 1 , wherein the partition plate includes at least one carryover opening formed in the partition plate between adjacent partition openings, the at least one carryover opening being configured to transmit a flame between the plurality of burners.

3 . The burner assembly according to claim 2 , wherein the at least one carryover opening extends through the entire thickness of the partition plate.

4 . The burner assembly according to claim 2 , wherein a distal end of the at least one carryover opening is spaced away from an adjacent partition opening.

5 . The burner assembly according to claim 2 , wherein a distal end of the at least one carryover opening is fluidly connected to an adjacent partition opening.

6 . The burner assembly according to claim 2 , wherein the at least one carryover is generally rectangular in shape.

7 . The burner assembly according to claim 2 , wherein a distal end of the at least one carryover opening extends generally perpendicular to the horizontal plane.

8 . The burner assembly according to claim 2 , wherein the first opening and the second opening are equidistantly spaced about the horizontal plane.

9 . A partition plate, comprising:
a body including a plurality of partition openings complementary to and arranged coaxially with a plurality of burner axes, the body of the partition plate extending perpendicular to a horizontal plane defined by the plurality of burner axes; and a plurality of carryover openings disposed between adjacent partition openings configured to transmit a flame between the plurality of partition openings, wherein a distal end of the plurality of carryover openings extends generally perpendicular to the horizontal plane.

10 . The partition plate according to claim 9 , wherein the plurality of carryover openings are generally I-shaped.

11 . The partition plate according to claim 9 , wherein the plurality of carryover openings are generally bone-shaped.

12 . The partition plate according to claim 9 , wherein the distal end of the plurality of carryover openings is spaced away from an adjacent partition opening.

13 . The partition plate according to claim 9 , wherein the distal end of the plurality of carryover openings is fluidly connected to an adjacent partition opening.

14 . The partition plate according to claim 9 , further comprising an igniter carryover including a substantially identical first opening and second opening, the first opening and second opening being sized such that a sufficient amount of a fuel and air mixture provided at one of the plurality of partition openings reaches an adjacent igniter without cooling the igniter.

Assignees

• Carrier Corp

Inventors

• Garloch Duane D
• Reeves Brian A
• Shaw Robert

Classifications

• F23D23/00

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

• F23D2207/00

  Ignition devices associated with burner · CPC title

• F23Q9/00

  Pilot flame igniters · CPC title

• F23D14/04 Primary

  induction type, e.g. Bunsen burner · CPC title

• F23D14/46

  Details · CPC title