Apparatus and Methods for Arresting Flame at a Gas Burner

Patent metadata

Field	Value
Publication number	US-2016290636-A1
Application number	US-201615068730-A
Country	US
Kind code	A1
Filing date	Mar 14, 2016
Priority date	Mar 30, 2015
Publication date	Oct 6, 2016
Grant date	—

Abstract

Disclosed are exemplary embodiments of apparatus and methods for arresting flame at a gas burner. In an exemplary embodiment, an apparatus for use in burning a gas fuel generally includes a flame arrester device having a screen portion configured for placement between a gas orifice and a burner. The flame arrester device is configured to allow gas emitted from the gas orifice to pass through the screen portion to enter the burner. The flame arrester device is further configured to arrest a flame from the burner before the flame reaches the gas orifice.

First claim

What is claimed is:

1 . An apparatus for use in burning a gas fuel, the apparatus comprising:
a flame arrester device having a screen portion configured for placement between a gas orifice and a burner, the flame arrester device configured to allow gas emitted from the gas orifice to pass through the screen portion to enter the burner; the flame arrester device further configured to arrest a flame from the burner before the flame reaches the gas orifice.

2 . The apparatus of claim 1 , wherein the screen portion comprises a mesh configured to cover at least part of a gas/air inlet of the burner.

3 . The apparatus of claim 1 , wherein the screen portion comprises a stainless steel mesh.

4 . The apparatus of claim 1 , wherein the screen portion comprises a 0.132-inch mesh.

5 . The apparatus of claim 1 , further comprising a bracket for mounting a burner thereon, the flame arrester device connected with the bracket.

6 . The apparatus of claim 1 , wherein the screen portion is attached to at least a portion of an edge of a gas/air inlet of the burner.

7 . The apparatus of claim 1 , comprising one or more of the following:
a heater, a water heater, a gas valve, a gas valve assembly, a gas control, a burner support bracket, a burner tube, a control or metering orifice, and a burner.

8 . The apparatus of claim 1 , wherein the flame arrester device comprises an edge configured for attachment to a bracket supporting the burner.

9 . A gas burner assembly for a water heater, the assembly comprising
a gas burner having a gas/air inlet; a burner tube configured for connection with a gas control valve, the burner tube having a gas metering orifice configured to emit gas toward the gas/air inlet of the burner; and a flame arrester device between the gas metering orifice of the burner tube and the gas/air inlet of the burner, the flame arrester device having a screen portion for allowing gas from the gas metering orifice to pass through the screen portion to enter the gas/air inlet of the burner; the screen portion further configured to prevent a flame from the burner from flashing back to the gas orifice.

10 . The gas burner assembly of claim 9 , wherein the screen portion comprises a stainless steel mesh.

11 . The gas burner assembly of claim 9 , wherein the screen portion comprises a 0.132-inch mesh.

12 . The gas burner assembly of claim 9 , further comprising a bracket connected between the burner tube and the burner and holding an edge of the flame arrester device.

13 . The gas burner assembly of claim 9 , wherein the screen portion is attached to at least a portion of an edge of a gas/air inlet of the burner.

14 . The gas burner assembly of claim 9 , wherein the screen portion comprises a mesh configured to cover at least part of the gas/air inlet of the burner.

15 . A water heater comprising the gas burner assembly of claim 9 .

16 . A method of making a gas burner assembly, the method comprising:
connecting a bracket between a burner tube and a gas burner so as to allow air flow toward the burner; and installing a flame arrester device at a gas/air inlet of the burner, the installing including positioning a screen portion of the flame arrester device to at least partly cover the gas/air inlet.

17 . The method of claim 16 , wherein installing the flame arrester device comprises connecting the screen portion to at least a portion of an edge of the gas/air inlet of the burner.

18 . The method of claim 16 , wherein installing the flame arrester device comprises fastening an edge of the flame arrester device to an arm of the bracket.

19 . The method of claim 16 , wherein installing the flame arrester device comprises affixing an edge of the flame arrester device between the burner and an arm of the bracket.

20 . The method of claim 19 , performed as the bracket is being connected with the gas burner.

Assignees

• Emerson Electric Co

Inventors

• Santinanavat Mike C
• Kopp John
• Gillam Christina M

Classifications

• F23D14/06

  with radial outlets at the burner head · CPC title

• F23D14/58

  characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration · CPC title

• F24H9/1836

  using fluid fuel · CPC title

• F23D14/82 Primary

  Preventing flashback or blowback · CPC title