Burner nozzle

Patent metadata

Field	Value
Publication number	US-10247702-B2
Application number	US-201715842909-A
Country	US
Kind code	B2
Filing date	Dec 15, 2017
Priority date	Dec 10, 2015
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

In an embodiment, the present invention provides a burner nozzle for a flame ionization detector, the nozzle including: an output-side outlet for ejecting a gas mixture to be ignited into a combustion chamber; an input-side inlet for feeding a combustible gas and a gaseous analyte through a transport channel to the outlet; and a cut-out, provided in the burner nozzle, through which cut-out combustion air can pass from the combustion chamber into the gas mixture flowing out of the outlet.

First claim

The invention claimed is:

1. A burner nozzle for a flame ionization detector, the nozzle comprising:
a transport channel;
an output-side outlet on a first side of the transport channel, the output-side outlet being configured to eject a gas mixture to be ignited into a combustion chamber;
an input-side inlet on a second side of the transport channel, the second side being opposite the first side, the input-side inlet being configured to feed a combustible gas and a gaseous analyte into the transport channel; and
a cut-out provided in the transport channel that allows combustion air to pass from the combustion chamber, through the cut-out, and into the gas mixture present in the transport channel before the gas mixture is ejected from the output-side outlet.

2. The burner nozzle of claim 1 , wherein the burner nozzle includes more than one of the cut-out.

3. The burner nozzle of claim 1 , wherein the burner nozzle further includes a burner tip, on an axis of which burner tip the outlet is arranged.

4. The burner nozzle of claim 1 , wherein the cut-out comprises a slot that is continuously open to the combustion chamber.

5. The burner nozzle of claim 4 , wherein the slot extends over the outlet.

6. The burner nozzle of claim 5 , wherein a width of the slot is equal to a diameter of the outlet.

7. The burner nozzle of claim 5 , wherein the slot is delimited by one or more walls that are arranged perpendicularly to one another.

8. The burner nozzle of claim 1 , wherein the cut-out comprises an inlet hole.

Assignees

• Abb Schweiz Ag

Inventors

• Lippert-Gellissen Julius
• Graudenz Matthias
• Capek Paul
• Schastok Peter
• Filip Stefan

Classifications

• F23N2229/12

  with flame rectification current detecting means · CPC title

• F23D2208/00

  Control devices associated with burners · CPC title

• G01N27/626 Primary

  using heat to ionise a gas · CPC title

• G01N30/68

  Flame ionisation detectors · 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