Furnace cooling system with thermally conductive joints between cooling elements

Patent metadata

Field	Value
Publication number	US-10259084-B2
Application number	US-201415027912-A
Country	US
Kind code	B2
Filing date	Oct 8, 2014
Priority date	Oct 8, 2013
Publication date	Apr 16, 2019
Grant date	Apr 16, 2019

Abstract

Supplementary cooling elements in addition to a primary cooling element of a furnace. The supplementary cooling elements, with two or more components, may be inserted from the outside of the furnace into holes that pass through and the primary cooling element such that the cooling elements protrude beyond the inner surface of the primary cooling element. An inner one of the components of the supplementary cooling element may be received by an outer one of the components in a manner that forces the outer component into a thermally conductive pressure connection with the primary cooling element.

First claim

What is claimed is:

1. A supplementary cooling element for use in conjunction with a primary cooling element of a furnace, the supplementary cooling element comprising:
a first component containing a passage into which a fluid is circulated for the purposes of removing heat, wherein the first component has, at least in part, a tapered profile; and
a second component defining a passage sized to receive the first component, the second component having an exterior dimension arranged for being received within an aperture in the primary cooling element, the aperture having an interior wall;
wherein a movement of the first component relative to the second component causes the second component to expand outwardly, thereby causing:
a thermally conductive pressure joint to be formed between the first component and the second component; and
a thermally conductive pressure joint to be formed between the second component and the interior wall of the aperture in the primary cooling element.

2. The cooling element of claim 1 wherein the first component comprises a cylinder incorporating a tapered section with the tapered profile.

3. The cooling element of claim 2 wherein the second component comprises a sleeve with a taper that matches the tapered section of the first component.

4. The cooling element of claim 2 wherein the second component comprises a collet with a taper that matches the tapered section of the first component.

5. The cooling element of claim 4 wherein the aperture in the primary cooling element comprises an irregularly-shaped aperture.

6. The cooling element of claim 5 wherein the second component comprises elements adapted to be tensioned individually to allow the second component to conform to the irregularly-shaped aperture.

7. The cooling element of claim 1 further comprising a biasing element configured to exert a force on the first component to force the movement.

8. The cooling element of claim 7 wherein the biasing element comprises a spring.

9. The cooling element of claim 7 wherein the biasing element comprises a plurality of Belleville washers.

10. The cooling element of claim 7 wherein the biasing element is received in an annular space, enclosed within a cylindrical outer end portion of the second component, the annular space extending longitudinally between a flat surface on an outer end of the first component and an annular washer located inwardly of a cylindrical cap, the cylindrical cap being fitted inside the cylindrical outer end portion of the second component.

11. The cooling element of claim 10 wherein the cap comprises steel.

12. The cooling element of claim 1 wherein the cooling element is fabricated from copper or a copper alloy.

13. The cooling element of claim 7 further comprising an adjustment element adapted to alter the force exerted, by the biasing element, on the first component.

14. The cooling element of claim 13 wherein the adjustment element comprises a bolt threaded into the cap and protruding outwardly from an outer end of the cooling element.

15. The cooling element of claim 1 wherein the first component comprises a trapezoidal prism incorporating a tapered section with the tapered profile.

16. The cooling element of claim 15 wherein the second component comprises a pair of wedge-shaped elements.

17. The cooling element of claim 1 wherein the aperture in the primary cooling element comprises a cylindrical aperture.

18. A supplementary cooling element for use in conjunction with a primary cooling element of a furnace, the supplementary cooling element comprising:
a first component containing a passage into which a fluid is circulated for the purposes of removing heat, wherein the first component has, at least in part, a tapered profile; and
a second component defining a passage sized to receive the first component, the second component having exterior dimension arranged for being received within an aperture in the primary cooling element, the aperture having an interior wall;
wherein a movement of the second component along an exterior surface of the first component causes the second component to expand outwardly, thereby causing:
a thermally conductive pressure joint to be formed between the first component and the second component; and
a thermally conductive pressure joint to be formed between the second component and the interior wall of the aperture in the primary cooling element.

Assignees

• Hatch Ltd

Inventors

• Veenstra Robert J
• Rudge David Henry
• Jastrzebski Maciej Urban
• Shaw John Andrew Ferguson

Classifications

• F27D2009/0043

  Insert type waterbox, e.g. cylindrical or flat type · CPC title

• F27B2014/0837

  Cooling arrangements · CPC title

• F27D2009/0018

  the cooling medium passing through a pattern of tubes · CPC title

• F27D2009/0051

  comprising use of studs to transfer heat or retain the liner · CPC title

• F27D9/00 Primary

  Cooling of furnaces or of charges therein (casings, linings, walls or roofs incorporating cooling arrangements F27D1/12) · CPC title