US2064123A - Welded boiler construction - Google Patents
Welded boiler construction Download PDFInfo
- Publication number
- US2064123A US2064123A US705255A US70525534A US2064123A US 2064123 A US2064123 A US 2064123A US 705255 A US705255 A US 705255A US 70525534 A US70525534 A US 70525534A US 2064123 A US2064123 A US 2064123A
- Authority
- US
- United States
- Prior art keywords
- welded
- box
- drum
- cross
- weld
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B17/00—Water-tube boilers of horizontally-inclined type, e.g. the water-tube sets being inclined slightly with respect to the horizontal plane
- F22B17/16—Component parts thereof; Accessories therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49387—Boiler making
Definitions
- the invention relates to Welded boiler constructions and more particularly to the construction of boiler parts such as crossboxes, headers,zand the like.
- Another object of the invention resides in the provision of boiler parts of the above character which may be manufactured. without the use of elaborate dies and methods such as were necessary heretofore in constructing the parts of forgings.
- FIG. 1 is a cross section through a boiler drum Showing a cross box constructed in accordance with my invention, the section being taken on the line l-l of Figure 2;
- Fig. 2 is a fragmentary longitudinal section taken on the line 2-2 of Fig. 1;
- FIGS. 3 and 4 are fragmentary cross sections illustrating modifications of the invention.
- Fig. 5 is a sectional developed view of the cross box illustrated in Figs. 1 and 2.
- the cross box I3 is constructed from a metal plate bent to be substantially of channel form in cross section with a web lll and side flanges l5.
- the upper edges of the flanges are configured as shown in Fig. 5, the middle portion IB being concave to correspond to the curvature of the boiler drum l1 and the remaining portions being configured as shown at I8.
- the end portions are bent inwardly toward the middle portion i6 until the flanges meet to form seams 2D as illustrated in Fig. 1.
- the flanges of the middle and end portions together form the side walls of the box, the web of the middle portion forms the bottom, and the webs of the end portions form the end walls while the top of the box is open for communication with the interior of the drum through a suitable opening 2 l.
- the seams 29 are welded and are located in the side Walls of the box and extend inwardly at an angle from the lower corners of the box and are the only seams located in the box proper.
- welds aregreadily,accessibleirfory examination by X-ray the location thereof .being such that it is possible to get only the weld between the X-ray bulb and the film which enables the taking y of a very accurate X-ray.
- I am enabled,v therefore, to definitely determine whether or not there are any gas pockets or inclusions within the weld Withoutcutting through the weld.
- Furthermore such examination will also showxwhether the weld metal has made a rm bond with the parent metal and Whether any cracks develop Within the weld due to shrinkage in cooling.
- the ends of the box may extend vertically upward as indicated at 24 before inclining inwardly toward the drum.
- the development illustrated in Figure 5 shows the box before the end portions 25 are inwardly bent to meet the middle portion.
- An integral flange 29' may be provided peripherally of the open top of the boxfor welding it into the drum sheet so that no riveting is required.
- Fig. 2 illustrates a preferred location Afor'the box when applied to a welded drum having Shell sections secured together by longitudinal welds 21 and heads 28 secured in place by circumferential welds 29.
- the box is so located that the end welds 30 for securing it in place fall in line with the longitudinal welds 21 and one side weld 3
- a plurality of spaced reinforcement bars 33 extending across the throat opening of the box and welded in place mayv be employed.
- 317 illustrated in Fig. 3 is ofv similar construction to that above described.
- a forged throat 34a is welded to the cross box proper at the periphery of the open top, the weld being indicated at 35.
- the assembled cross box and throat may then be secured to the boiler drum l1 by means of welding as indicated at 31.
- the drum I1 may have slots 39 formed directly therein affording communication with the interior of the header, or these slots may be provided by spacedv reinforcement bars 40 extending across the throat opening and Welded in place.
- the welded joints of the box are not located in highly stressed zones such as corners and that their location is such as will permit accurate X-ray examination of them.
- Fig. 4 I have shown a modification in which the cross box I3c is made up of a. middle section 4l and two end sections 42 secured together by Welds 43 and to the throat 34a by means of the weld 44.
- This assembly may be welded to the drum l1 as shown. It should be observed that the corner is rounded on a substantial radius which in this construction reduces stress in the metal constituting the corner, to a negligible value.
- a boiler drum and a cross box formed with welded butt seams located so as to be accessible for accurate X-ray examination of the Welds, the shell of said drum having an opening for receiving said cross box,l said cross"k box having an upper anged portion struck" on the same radius as the drum shell, said flanged portion being of a size to t said opening-5in the shell with the Aperipheral edge thereof in ⁇ butt seam relation to the edge of the opening, and V said seam being Welded and accessible for accurate X-ray examination.
- a boiler drum, and a plate metal cross box constructed of portions bent in butt seam relation to form the box, the meeting edges of the portions being welded and forming welded butt seams located so as to be accessible for accurate X-ray examination of the welds, the shell of said drum having an opening for receiving said cross box, said cross box having an upper outwardly iianged portion struck on the same radius as the drum shell, said iianged portion being of a size to fit said opening in the shell with the peripheral edge thereof in butt seam relation to the edge of the opening, and said seam being Welded and accessible for accurate X-ray examination.
- a boiler drum a cross box having an open top and a throat butt welded to the upper peripheral edge of said box, the shell of said drum having an opening for receiving saidthroat, said throat having an upper outwardly iiared portion struck on the same radius as the drum shell, said flared portion being of a size to fit said opening in the shell with the peripheral edge thereof in butt seam relation to the edge of the opening, and said seam being Welded.
Description
Dec; 15, '1936. J.' R. KRUSE 2,064,123
WELDED BOILER CONSTRUCTION Filed Jan,l 4, 1934 WM BY ,LAM/
ATTORNEY;
Patented Dec. 15, 1936 WELDED BOILER CONSTRUCTION A Jdhn R. Kruse, East orange, N. J., assignto' Combustion Engineering Companyglnc., New York, N. Y., a corporation of Delaware4 Application January 4, 1934, Serial, No.
s claims. (C1. 122-365) The invention relates to Welded boiler constructions and more particularly to the construction of boiler parts such as crossboxes, headers,zand the like.
It is among the objects of the invention to provide welded constructions in which the welds or welded seams are located so that accurate examination thereof may be made by means of X-ray to definitely determine the quality of the weld.
Another object of the invention resides in the provision of boiler parts of the above character which may be manufactured. without the use of elaborate dies and methods such as were necessary heretofore in constructing the parts of forgings.
Other objects relate to improved features of construction hereinafter more specifically appearing.
How the foregoing, together with such other objects and advantages as may hereinafter appear or are incident to my invention are realized, is illustrated in preferred form in the accompanying drawing, wherein- Fig. 1 is a cross section through a boiler drum Showing a cross box constructed in accordance with my invention, the section being taken on the line l-l of Figure 2;
Fig. 2 is a fragmentary longitudinal section taken on the line 2-2 of Fig. 1;
Figs. 3 and 4 are fragmentary cross sections illustrating modifications of the invention; and
Fig. 5 is a sectional developed view of the cross box illustrated in Figs. 1 and 2.
Referring to Figs. 1, 2, and 5, the cross box I3 is constructed from a metal plate bent to be substantially of channel form in cross section with a web lll and side flanges l5. The upper edges of the flanges are configured as shown in Fig. 5, the middle portion IB being concave to correspond to the curvature of the boiler drum l1 and the remaining portions being configured as shown at I8. The end portions are bent inwardly toward the middle portion i6 until the flanges meet to form seams 2D as illustrated in Fig. 1.
The flanges of the middle and end portions together form the side walls of the box, the web of the middle portion forms the bottom, and the webs of the end portions form the end walls while the top of the box is open for communication with the interior of the drum through a suitable opening 2 l. The seams 29 are welded and are located in the side Walls of the box and extend inwardly at an angle from the lower corners of the box and are the only seams located in the box proper.
It will thus be seen that a welded cross box is provided in which the welds vare-located inregmions outside zones where the metalris relativelyjhighly stressedsuch .asis-)the case aticornersforgexample.
Also these welds aregreadily,accessibleirfory examination by X-ray the location thereof .being such that it is possible to get only the weld between the X-ray bulb and the film which enables the taking y of a very accurate X-ray. I am enabled,v therefore, to definitely determine whether or not there are any gas pockets or inclusions within the weld Withoutcutting through the weld. Furthermore such examination will also showxwhether the weld metal has made a rm bond with the parent metal and Whether any cracks develop Within the weld due to shrinkage in cooling. i
The ends of the box may extend vertically upward as indicated at 24 before inclining inwardly toward the drum. The development illustrated in Figure 5 shows the box before the end portions 25 are inwardly bent to meet the middle portion.
An integral flange 29' may be provided peripherally of the open top of the boxfor welding it into the drum sheet so that no riveting is required.
Fig. 2 illustrates a preferred location Afor'the box when applied to a welded drum having Shell sections secured together by longitudinal welds 21 and heads 28 secured in place by circumferential welds 29. The box is so located that the end welds 30 for securing it in place fall in line with the longitudinal welds 21 and one side weld 3| falls in line with the circumferential weld 29 so that only one additional weld or seam 32 extending part way around the circumference of the drum is required to secure the box in place. f
A plurality of spaced reinforcement bars 33 extending across the throat opening of the box and welded in place mayv be employed.
The cross box .|317 illustrated in Fig. 3 is ofv similar construction to that above described. However, a forged throat 34a is welded to the cross box proper at the periphery of the open top, the weld being indicated at 35. The assembled cross box and throat may then be secured to the boiler drum l1 by means of welding as indicated at 31. 'The drum I1 may have slots 39 formed directly therein affording communication with the interior of the header, or these slots may be provided by spacedv reinforcement bars 40 extending across the throat opening and Welded in place.
It is to be noted that the welded joints of the box are not located in highly stressed zones such as corners and that their location is such as will permit accurate X-ray examination of them.
In Fig. 4 I have shown a modification in which the cross box I3c is made up of a. middle section 4l and two end sections 42 secured together by Welds 43 and to the throat 34a by means of the weld 44. This assembly may be welded to the drum l1 as shown. It should be observed that the corner is rounded on a substantial radius which in this construction reduces stress in the metal constituting the corner, to a negligible value. f
What I claim is:-
1. In combination, a boiler drum, and a cross box formed with welded butt seams located so as to be accessible for accurate X-ray examination of the Welds, the shell of said drum having an opening for receiving said cross box,l said cross"k box having an upper anged portion struck" on the same radius as the drum shell, said flanged portion being of a size to t said opening-5in the shell with the Aperipheral edge thereof in` butt seam relation to the edge of the opening, and V said seam being Welded and accessible for accurate X-ray examination. v
2. In combination, a boiler drum, and a plate metal cross box constructed of portions bent in butt seam relation to form the box, the meeting edges of the portions being welded and forming welded butt seams located so as to be accessible for accurate X-ray examination of the welds, the shell of said drum having an opening for receiving said cross box, said cross box having an upper outwardly iianged portion struck on the same radius as the drum shell, said iianged portion being of a size to fit said opening in the shell with the peripheral edge thereof in butt seam relation to the edge of the opening, and said seam being Welded and accessible for accurate X-ray examination.
3. In combination, a boiler drum, a cross box having an open top and a throat butt welded to the upper peripheral edge of said box, the shell of said drum having an opening for receiving saidthroat, said throat having an upper outwardly iiared portion struck on the same radius as the drum shell, said flared portion being of a size to fit said opening in the shell with the peripheral edge thereof in butt seam relation to the edge of the opening, and said seam being Welded.
JOHN R. KRUSE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US705255A US2064123A (en) | 1934-01-04 | 1934-01-04 | Welded boiler construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US705255A US2064123A (en) | 1934-01-04 | 1934-01-04 | Welded boiler construction |
Publications (1)
Publication Number | Publication Date |
---|---|
US2064123A true US2064123A (en) | 1936-12-15 |
Family
ID=24832673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US705255A Expired - Lifetime US2064123A (en) | 1934-01-04 | 1934-01-04 | Welded boiler construction |
Country Status (1)
Country | Link |
---|---|
US (1) | US2064123A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2609964A (en) * | 1947-04-04 | 1952-09-09 | American Pipe & Steel Corp | Recess mounting for valves and fittings for liquefied petroleum gas containers |
US2775810A (en) * | 1952-05-29 | 1957-01-01 | Babcock & Wilcox Co | Boiler erection apparatus |
-
1934
- 1934-01-04 US US705255A patent/US2064123A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2609964A (en) * | 1947-04-04 | 1952-09-09 | American Pipe & Steel Corp | Recess mounting for valves and fittings for liquefied petroleum gas containers |
US2775810A (en) * | 1952-05-29 | 1957-01-01 | Babcock & Wilcox Co | Boiler erection apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6192977B1 (en) | Tube for heat exchanger | |
US2065480A (en) | Metal container and method of making the same | |
US3689972A (en) | Method of fabricating a heat exchanger | |
US1215969A (en) | Sheet-metal piston. | |
US2064123A (en) | Welded boiler construction | |
US1933772A (en) | Thick walled pressure vessel | |
US2372712A (en) | Butt-welded joint between lined parts | |
US3160312A (en) | Shipping container | |
US2185475A (en) | Stud and rafter | |
US2127269A (en) | Range boiler | |
US1787580A (en) | Method of electrically welding tubular connections for thick-walled vessels | |
US1485555A (en) | Welded joint for barrels | |
US1420182A (en) | Steam boiler and method of making the same | |
US2220944A (en) | Furnace or boiler wall construction | |
US1680535A (en) | Welded sheet-metal container | |
US3425380A (en) | Tank and method of manufacturing same | |
US1648307A (en) | Safety method of installing fire-box arch tubes | |
US1834444A (en) | Method of welding | |
US2553922A (en) | Metallic structure | |
US2058030A (en) | Retainer for fluids under pressure | |
US1685246A (en) | Container and method of making the same | |
US1286667A (en) | Sheet-metal internal-combustion engine. | |
US1896863A (en) | Welded pressure vessel | |
US1991429A (en) | Pressure vessel and closure therefor | |
US868076A (en) | Means for joining plates. |