Apparatuses and methods for combustion

Patent metadata

Field	Value
Publication number	US-10295178-B2
Application number	US-201415101578-A
Country	US
Kind code	B2
Filing date	Dec 4, 2014
Priority date	Dec 4, 2013
Publication date	May 21, 2019
Grant date	May 21, 2019

Abstract

Combustion apparatuses (e.g., burners) and methods, such as those configured to encourage mixing of fluid and flame stability, among other things.

First claim

The invention claimed is:

1. A combustion apparatus comprising:
a center member having a longitudinal axis and comprising:
a body, where at least a portion of the body is substantially cylindrical; and
a tip integral with the body, where at least a portion of the tip is substantially hemispherical;

a first outer member comprising:
a body;
a tip integral with the body; and
a bore concentric with the longitudinal axis of the center member;
where the first outer member is positioned such that a first channel is defined between the first outer member and the center member; and

a second outer member comprising:
a body;
a tip integral with the body; and
a bore concentric with the longitudinal axis of the center member;
where the second outer member is positioned such that a second channel is defined between the second outer member and the first outer member;

where the apparatus is configured to:
permit fluid to move through the first channel and out of the tip of the first outer member; and
permit fluid to move through the second channel and out of the tip of the second outer member, and

where at least one of the center member, the first outer member and the second outer member is adjustable with respect to others of the center member, the first outer member and the second outer member, such that at least a portion of the first channel or the second channel changes in width.

2. The apparatus of claim 1 , where at least a portion of the tip of the first outer member and at least a portion of the tip of the second outer member each extends toward the tip of the center member, where the tip of the center member has a first end and a second end, and the second end of the tip is substantially concave.

3. The apparatus of claim 1 , where the center member is 250 to 320 millimeters in length and comprises a diameter of 25 to 75 millimeters.

4. The apparatus of claim 1 , where the first outer member is 230 to 300 millimeters in length, where the bore of the first outer member comprises a diameter of 20 to 80 millimeters, and where the first outer member comprises a diameter of 70 to 120 millimeters.

5. The apparatus of claim 1 , where the second outer member is 190 to 260 millimeters in length, where the bore of the second outer member comprises a diameter of 70 to 140 millimeters, and where the second outer member comprises a diameter of 110 to 160 millimeters.

6. The apparatus of claim 1 , where at least a portion of the first channel comprises a width of 3 millimeters and where at least a portion of the second channel comprises a width of 5 millimeters.

7. The apparatus of claim 1 , where the center member is adjustable with respect to the first outer member and the second outer member such that at least a portion of the first channel and the second channel changes in width, or the first outer member is adjustable with respect to the center member such that at least a portion of the first channel changes in width, or the second outer member is adjustable with respect to the center member such that at least a portion of the second channel changes in width.

8. The apparatus of claim 1 , further comprising:
four inlets in fluid communication with the first channel through which fluid can enter the first channel; and
four inlets in fluid communication with the second channel through which fluid can enter the second channel.

9. The apparatus of claim 1 , further comprising:
a swirling vane coupled to the center member and extending at least partially into the first channel such that fluid moving through the first channel is disturbed.

10. The apparatus of claim 9 , further comprising:
a swirling vane coupled to the center member and extending at least partially into the second channel such that fluid moving through the first channel and the second channel is disturbed.

11. The apparatus of claim 1 , further comprising:
a swirling vane coupled to the center member, where if the center member comprises a bore concentric with the longitudinal axis of the center member and extending through the body and the tip of the center member, fluid moving through the bore of the center member is disturbed.

12. The apparatus of claim 1 , where the first outer member is configured such that fluid can be introduced into the first channel substantially perpendicular to the first channel and the second outer member is configured such that fluid can be introduced into the second channel substantially perpendicular to the second channel.

13. The apparatus of claim 1 , further comprising:
a spark plug coupled to the center member.

14. The apparatus of claim 1 , the center member further comprising a bore concentric with the longitudinal axis of the center member, the bore extending through the body and the tip; and
where the apparatus is further configured to
permit fluid to move through the bore of the center member and out of the tip of the center member.

15. A combustion apparatus comprising:
a base;
a center member having a longitudinal axis and comprising:
a body, where at least a portion of the body is substantially cylindrical; and
a tip integral with the body, where at least a portion of the tip is substantially hemispherical;

a first outer member comprising:
a body;
a tip integral with the body; and
a bore concentric with the longitudinal axis of the center member;
where the first outer member is positioned such that a first channel is defined between the first outer member and the center member; and

a second outer member comprising:
a body;
a tip integral with the body; and
a bore concentric with the longitudinal axis of the center member;
where the second outer member is positioned such that a second channel is defined between the second outer member and the first outer member;

where the apparatus is configured to:
permit fluid to move through the first channel and out of the tip of the first outer member; and
permit fluid to move through the second channel and out of the tip of the second outer member,

where the body is coupled to the base,
where at least a portion of the tip of the center member is farther from the base than the tip of the first outer member,
and where at least a portion of the tip of the center member is farther from the base than the tip of the second outer member.

16. A method for combustion comprising:
introducing a first fluid into a first channel defined by:
a center member having a tip, where at least a portion of the tip is substantially hemispherical; and
a first outer member;

introducing a second fluid into a second channel defined by the first outer member and a second outer member;
permitting the first fluid and the second fluid to flow over the tip of the center member and to mix;
igniting the mixture of the first fluid and the second fluid; and
adjusting at least one of the center member, the first outer member and the second outer member with respect to others of the center member, the first outer member and the second outer member, such that at least a portion of the first channel or the second channel changes in width.

17. The method of claim 16 , further comprising:
introducing the first fluid into the first channel substantially perpendicular to the first channel; and
introducing the second fluid into the second channel substantially perpendicular to the second channel.

18. The method of claim 16 , further comprising:
adjusting the center member with respect to the first outer member and the second outer member such that at least a portion of the fi

Assignees

• Univ King Abdullah Sci & Tech

Inventors

• Chung Suk Ho
• Abdo Markous
• Dawood Alaa

Classifications

• F23D14/70

  Baffles or like flow-disturbing devices · CPC title

• F23D14/22 Primary

  with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other · CPC title

• F23D14/24

  at least one of the fluids being submitted to a swirling motion · 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

• F23D14/08

  with axial outlets at the burner head · CPC title