System and device for supporting horizontal boiler tubes

Patent metadata

Field	Value
Publication number	US-9683735-B2
Application number	US-201414575415-A
Country	US
Kind code	B2
Filing date	Dec 18, 2014
Priority date	Dec 18, 2014
Publication date	Jun 20, 2017
Grant date	Jun 20, 2017

Abstract

A system for supporting horizontal boiler tubes comprises a support plate, a vertical stringer tube, and a shear lug. The shear lug attaches the support plate to the vertical stringer tube through a slot in the support plate. A plurality of supporting arms extend outwardly from the first and second sides perpendicular to a main body portion of the support plate. Each supporting arm includes a retaining lip extending upwardly from a distal end of the supporting arm and a rounded recess, the rounded recess and retaining lip defining a cradle within which a horizontal boiler tube may rest.

First claim

The invention claimed is:

1. A support plate for supporting associated horizontal boiler tubes, the support plate comprising:
a front face, a rear face, a first side, a second side opposite the first side, a top edge, and a bottom edge;
a main body portion that is solid, such that no hollow interior is present between the front and rear faces except for a slot in the main body portion that passes from the front face to the rear face, the slot configured to permit an associated shear lug to pass through the slot for attaching the support plate to an associated vertical stringer tube;
one or more supporting arms extending outwardly from the first side perpendicular to the main body portion; and one or more supporting arms extending outwardly from the second side perpendicular to the main body portion;
wherein the one or more supporting arms extending outwardly from the first side and the one or more supporting arms extending outwardly from the second side include an outer retaining lip at a distal end of the supporting arm and a plurality of rounded recesses, each rounded recess being spaced apart from adjacent rounded recesses by an inner retaining lip extending therebetween, such that multiple rows of the associated horizontal boiler tubes may be supported on each supporting arm within the plurality of rounded recesses;
a vertical stringer tube; and
a shear lug that passes through the slot in the support plate and attaches the support plate to the vertical stringer tube, the shear lug including a lip configured to prevent the support plate from falling off of the shear lug
wherein the shear lug is welded to the stringer tube; and
wherein the support plate is made of a material that is capable of withstanding temperatures from about 0° to about 20000 F.

2. The support plate of claim 1 , wherein every supporting arm of the one or more supporting arms extending outwardly from the first side corresponds to a respective supporting arm of the one or more supporting arms extending outwardly from the second side to define a pair of corresponding supporting arms that are positioned in a same longitudinal level and parallel to one another.

3. The support plate of claim 1 , wherein every supporting arm of the one or more supporting arms extending outwardly from the first side is at a different longitudinal level than every supporting arm of the one or more supporting arms extending outwardly from the second side.

4. The support plate of claim 1 , wherein the front face and the rear face are flat and parallel to one another.

5. The support plate of claim 1 , wherein the support plate is reflectionally symmetrical about a plane of symmetry.

6. The support plate of claim 1 , wherein the one or more supporting arms extending outwardly from the first side and the one or more supporting arms extending outwardly from the second side are positioned at a plurality of longitudinal levels of the support plate.

7. The support plate of claim 1 , wherein the outer retaining lip of each supporting arm extends upwardly from the distal end thereof to a first height, and the inner retaining lip of each supporting arm extends upwardly between adjacent rounded recesses of the supporting arm to a second height that is equal to the first height.

8. A system for supporting associated horizontal boiler tubes, the system comprising:
a support plate for supporting the associated horizontal boiler tubes, the support plate having a front face, a rear face, a first side, a second side opposite the first side, a top edge, a bottom edge, and a main body portion, the main body portion having a slot that passes from the front face to the rear face of the support plate;
a plurality of supporting arms extending outwardly from the first and second sides and perpendicular to the main body portion of the support plate, wherein each supporting arm of the plurality of supporting arms includes an outer retaining lip extending upwardly from a distal end of the supporting arm;
a vertical stringer tube; and
a shear lug that passes through the slot in the support plate and attaches the support plate to the vertical stringer tube, the shear lug including a lip configured to prevent the support plate from falling off of the shear lug
wherein the shear lug is welded to the stringer tube.

9. The system of claim 8 , wherein the shear lug is welded to the vertical stringer tube.

10. The system of claim 8 , wherein each supporting arm of the plurality of supporting arms extending from the first side corresponds to a respective supporting arm of the plurality of supporting arms extending from the second side to define a pair of corresponding supporting arms that are positioned in a same longitudinal level of the support plate and parallel to one another.

11. The system of claim 8 , wherein each supporting of the plurality of supporting arms extending from the first side is at a different longitudinal level of the support plate than supporting arm of the plurality of supporting arms extending from the second side; wherein each supporting arm extending from the second side is parallel to the respective supporting arm extending from the first side.

12. The system of claim 8 , wherein each supporting arm further comprises a rounded recess within which the associated horizontal boiler tube can rest.

13. The system of claim 8 , wherein each supporting arm has a plurality of rounded recesses, each of the plurality of rounded recesses spaced apart from adjacent rounded recesses by an inner retaining lip extending therebetween, such that multiple rows of associated horizontal boiler tubes may be supported on each supporting arm within the plurality of rounded recesses.

14. The system of claim 13 , wherein the outer retaining lip of each supporting arm extends upwardly from the distal end thereof to a first height, and the inner retaining lip of each supporting arm extends upwardly between adjacent rounded recesses of the supporting arm to a second height that is equal to the first height.

15. The system of claim 8 , wherein the front face and the rear face of the support plate are flat and are parallel to one another.

16. The system of claim 8 , wherein the main body portion is solid, such that no hollow interior is defined between the front and rear faces of the support plate except for the slot in the main body portion.

17. The system of claim 8 , wherein the support plate is reflectionally symmetrical about a plane of symmetry.

18. The system of claim 8 , wherein the plurality of supporting arms extending outwardly from the first and second sides of the support plate are positioned at a plurality of longitudinal levels of the support plate.

19. The system of claim 8 , wherein the support plate is made of a material that is capable of withstanding temperatures from about 0° to about 2000° F.

Assignees

• Babcock & Wilcox Power Generat
• Babcock & Wilcox Co

Inventors

• Bowyer Michael P
• Liberatore Angela S
• Sartori Fernando B

Classifications

• F16L3/223

  each support having one transverse base for supporting the pipes (F16L3/23, F16L3/237 take precedence) · CPC title

• F16L3/02

  partly surrounding the pipes, cables or protective tubing (bands or chains F16L3/14) · CPC title

• F22B37/205 Primary

  Supporting and spacing arrangements for tubes of a tube bundle · CPC title