US20090050078A1 - Flanged Boiler Tube - Google Patents
Flanged Boiler Tube Download PDFInfo
- Publication number
- US20090050078A1 US20090050078A1 US11/842,604 US84260407A US2009050078A1 US 20090050078 A1 US20090050078 A1 US 20090050078A1 US 84260407 A US84260407 A US 84260407A US 2009050078 A1 US2009050078 A1 US 2009050078A1
- Authority
- US
- United States
- Prior art keywords
- flange
- boiler
- boiler tube
- manifold
- aperture
- 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.)
- Abandoned
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/10—Water tubes; Accessories therefor
- F22B37/104—Connection of tubes one with the other or with collectors, drums or distributors
Definitions
- This invention pertains to boiler tubes.
- this invention pertains to boiler tubes which are periodically replaced and provide an improved structure for attachment and detachment from a boiler using standard tools.
- connection method for releasably securing a boiler tube to a manifold is to define an aperture in the manifold, secure a tapered ferrule to the end of the boiler tube and then forcibly insert the ferrule into the aperture, as with a sledge hammer, for example.
- a sledge hammer for example
- One negative aspect of the system is that special tools are required to hold the boiler tube in position while it is struck to prevent damage to the tube and transfer the energy from the hammer to the tube.
- special tools are required during transportation and installation of the boiler.
- the Tube Keeper Bolts are prone to breakage. To replace the Tube Keeper Bolts requires certified welding, ASME Inspection, Hydro-Static Testing, and the required “R” Stamp denoting repair of the vessel.
- a boiler apparatus comprises a supply manifold which includes a first flange having a first aperture defined therein.
- a boiler tube including a second flange having an aperture defined therein, is secured to the manifold.
- a releasable fastener maintains sealed engagement of the first flange with the second flange.
- the releasable fastener is removable for replacement using standard tools in contrast to the special tools required heretofore.
- FIG. 1 is an exploded cross-sectional elevation view of one embodiment of the present invention.
- FIG. 2 is an exploded perspective view of the embodiment depicted in FIG. 1
- FIG. 3 is a perspective of the embodiment depicted in FIG. 2 .
- a tubular boiler manifold 10 defines a plurality of first apertures 12 .
- a first extension tube 14 extends radially outwardly from the first aperture 12 and defines a distal aperture 16 .
- the first extension tube 14 is sealingly secured to the manifold 10 , as by welding, for example.
- a first flange 18 extends around the distal aperture 16 .
- the first flange 18 is sealingly secured to the first extension tube 14 as by welding, for example.
- a plurality of first fastening apertures 20 are defined in the first flange 18 .
- Each of the fastening apertures 20 is adapted to slidingly receive an elongated threaded bolt 22 having an expanded head 24 at one end and an opposing threaded distal end 26 .
- An elongated boiler tube 28 includes an attachment end section 30 which terminates in a shoulder 32 which extends circumferentially outwardly from the attachment end section 30 and defines a second aperture 34 .
- a second flange 36 is slidingly mounted upon the boiler tube 28 and defines a plurality of second fastening apertures 38 .
- Each of the second fastening apertures 38 is adapted to slidingly receive an elongated, threaded bolt 22 having an expanded head 24 at one end and an opposing threaded distal end 26 .
- the pattern of first fastening apertures and the pattern of second fastening apertures are substantially identical so that when the bolts 22 are inserted through the first fastening apertures 20 and the second fastening apertures 38 , the bolts 22 are aligned parallel to one another and generally perpendicular to the planes defined by the first flange 18 and the second flange 36 .
- a gasket 40 is located between the first flange 18 and the second flange 36 .
- the gasket 40 defines a central aperture 42 substantially similar in size and shape to the first aperture 16 and the second aperture 34 .
- the gasket 40 also defines a plurality of apertures 44 which are sized similarly to the fastening apertures 20 and 38 and arranged in a pattern similar to the apertures 20 and 38 , whereby the bolts 22 extend through the apertures 44 when they extend through the apertures 20 and 38 .
- Each of the threaded bolts 22 is provided with a lock washer 46 and a threaded nut 48 adapted to threadably engage the bolt 22 .
- the gasket 40 is located between said first flange 18 and said second flange 36 .
- the apertures 20 defined in the first flange 18 are aligned with the apertures 44 defined in the gasket 40 and with the apertures 38 defined in the second gasket.
- the aperture 16 defined in the first flange 18 is aligned with the aperture 42 defined in the gasket and the aperture 34 defined in the boiler tube 28 .
- a bolt 22 is inserted through each of the sets of aligned apertures 20 , 44 and 38 , a lock washer 46 is mounted upon the bolt 22 and a nut 48 is threadably mounted upon the bolt 22 . Thereafter, the nuts 48 are tightened to sealingly engage the gasket 40 between the first flange 18 and the second flange 36 . Simple wrenches may be used for the tightening of the nuts 48 .
Abstract
A boiler apparatus comprises a supply manifold which includes a first flange having a first aperture defined therein. A boiler tube, including a second flange having an aperture defined therein, is secured to the manifold. A releasable fastener maintains sealed engagement of the first flange with the second flange.
Description
- Not Applicable
- Not Applicable
- 1. Field of Invention
- This invention pertains to boiler tubes.
- More particularly, this invention pertains to boiler tubes which are periodically replaced and provide an improved structure for attachment and detachment from a boiler using standard tools.
- 2. Description of the Related Art
- In the field of boilers, it is common to provide a supply manifold with a plurality of boiler tubes. Water is provided through the manifold to the boiler tubes to provide hot water or steam. Over time, the boiler tubes must be replaced because they receive the direct heat of the boiler and therefore deteriorate faster than the manifold. Accordingly, the boiler tubes have been releasably secured to the manifold for ease of replacement.
- The standard connection method for releasably securing a boiler tube to a manifold is to define an aperture in the manifold, secure a tapered ferrule to the end of the boiler tube and then forcibly insert the ferrule into the aperture, as with a sledge hammer, for example. Unfortunately, there are several detrimental aspects of this attachment system.
- One negative aspect of the system is that special tools are required to hold the boiler tube in position while it is struck to prevent damage to the tube and transfer the energy from the hammer to the tube. In addition, during transportation and installation of the boiler, it is common for a boiler tube to become dislodged from the manifold and thus require re-installation in the field. Again, special tools are required. Also, during field re-installation/replacement of boiler tubes, the Tube Keeper Bolts are prone to breakage. To replace the Tube Keeper Bolts requires certified welding, ASME Inspection, Hydro-Static Testing, and the required “R” Stamp denoting repair of the vessel.
- Accordingly, it is desirable to provide a system for connecting a boiler tube to a manifold which requires only standard tools and which is not subject to disengagement during transport and installation.
- According to one embodiment of the present invention, a boiler apparatus comprises a supply manifold which includes a first flange having a first aperture defined therein. A boiler tube, including a second flange having an aperture defined therein, is secured to the manifold. A releasable fastener maintains sealed engagement of the first flange with the second flange. The releasable fastener is removable for replacement using standard tools in contrast to the special tools required heretofore.
- The above-mentioned features of the invention will become more clearly understood from the following detailed description of the invention read together with the drawings in which:
-
FIG. 1 is an exploded cross-sectional elevation view of one embodiment of the present invention. -
FIG. 2 is an exploded perspective view of the embodiment depicted inFIG. 1 -
FIG. 3 is a perspective of the embodiment depicted inFIG. 2 . - An apparatus for removably securing a boiler tube to a manifold is disclosed. Referring to the drawings in which numbered parts represent similar parts, a
tubular boiler manifold 10 defines a plurality offirst apertures 12. Afirst extension tube 14 extends radially outwardly from thefirst aperture 12 and defines adistal aperture 16. Thefirst extension tube 14 is sealingly secured to themanifold 10, as by welding, for example. - A
first flange 18 extends around thedistal aperture 16. Thefirst flange 18 is sealingly secured to thefirst extension tube 14 as by welding, for example. A plurality offirst fastening apertures 20 are defined in thefirst flange 18. Each of thefastening apertures 20 is adapted to slidingly receive an elongated threadedbolt 22 having an expandedhead 24 at one end and an opposing threadeddistal end 26. - An
elongated boiler tube 28 includes anattachment end section 30 which terminates in ashoulder 32 which extends circumferentially outwardly from theattachment end section 30 and defines asecond aperture 34. Asecond flange 36 is slidingly mounted upon theboiler tube 28 and defines a plurality ofsecond fastening apertures 38. Each of thesecond fastening apertures 38 is adapted to slidingly receive an elongated, threadedbolt 22 having an expandedhead 24 at one end and an opposing threadeddistal end 26. The pattern of first fastening apertures and the pattern of second fastening apertures are substantially identical so that when thebolts 22 are inserted through thefirst fastening apertures 20 and thesecond fastening apertures 38, thebolts 22 are aligned parallel to one another and generally perpendicular to the planes defined by thefirst flange 18 and thesecond flange 36. - A
gasket 40 is located between thefirst flange 18 and thesecond flange 36. Thegasket 40 defines acentral aperture 42 substantially similar in size and shape to thefirst aperture 16 and thesecond aperture 34. Thegasket 40 also defines a plurality ofapertures 44 which are sized similarly to thefastening apertures apertures bolts 22 extend through theapertures 44 when they extend through theapertures - Each of the threaded
bolts 22 is provided with alock washer 46 and a threadednut 48 adapted to threadably engage thebolt 22. - In operation, the
gasket 40 is located between saidfirst flange 18 and saidsecond flange 36. Theapertures 20 defined in thefirst flange 18 are aligned with theapertures 44 defined in thegasket 40 and with theapertures 38 defined in the second gasket. Simultaneously, theaperture 16 defined in thefirst flange 18 is aligned with theaperture 42 defined in the gasket and theaperture 34 defined in theboiler tube 28. Abolt 22 is inserted through each of the sets of alignedapertures lock washer 46 is mounted upon thebolt 22 and anut 48 is threadably mounted upon thebolt 22. Thereafter, thenuts 48 are tightened to sealingly engage thegasket 40 between thefirst flange 18 and thesecond flange 36. Simple wrenches may be used for the tightening of thenuts 48. - When a
boiler tube 28 requires replacement, simple wrenches may be used to loosen thenuts 48 and the installation process is reversed to leave the manifold prepared for installation of areplacement boiler tube 28. - Those skilled in the art will recognize that various fasteners other than threaded bolts can be used without departing from the spirit and scope of the present invention. Also, the elimination of 1 or 2 or the fastening bolts, washers, and/or nuts should not be recognized as departing from the spirit of the invention.
- While the present invention has been illustrated by description of several embodiments and while the illustrative embodiments have been described in considerable detail, it is not the intention of the applicant to restrict or in any way limit the scope of the appended claims to such detail. Additional advantages and modifications will readily appear to those skilled in the art. The invention in its broader aspects is therefore not limited to the specific details, representative apparatus and methods, and illustrative examples shown and described. Accordingly, departures may be made from such details without departing from the spirit or scope of applicant's general inventive concept.
Claims (8)
1. A boiler apparatus comprising:
a supply manifold including a first flange;
a boiler tube including a second flange; and
a releasable securer maintaining sealed engagement of said first flange with said second flange.
2. The apparatus of claim 1 further including a gasket located between said first flange and said second flange.
3. The apparatus of claim 1 wherein said first flange defines at least one securing aperture.
4. The apparatus of claim 1 wherein said second flange defines at least one securing aperture.
5. The apparatus of claim 1 wherein a threaded bolt extends through a first securing aperture defined in said first flange and a second securing aperture defined in said second flange to releasably secure said first flange to said second flange.
6. The apparatus of claim 1 wherein a plurality of threaded bolt extend through a plurality of first securing apertures defined in said first flange and a plurality of second securing apertures defined in said second flange to releasably secure said first flange to said second flange.
7. The apparatus of claim 1 wherein said second flange is slidingly mounted upon said boiler tube and said boiler tube defines a shoulder.
8. The apparatus of claim 1 and further comprising an extension tube connecting said manifold to said first flange.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/842,604 US20090050078A1 (en) | 2007-08-21 | 2007-08-21 | Flanged Boiler Tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/842,604 US20090050078A1 (en) | 2007-08-21 | 2007-08-21 | Flanged Boiler Tube |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090050078A1 true US20090050078A1 (en) | 2009-02-26 |
Family
ID=40380988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/842,604 Abandoned US20090050078A1 (en) | 2007-08-21 | 2007-08-21 | Flanged Boiler Tube |
Country Status (1)
Country | Link |
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US (1) | US20090050078A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2305377A (en) * | 1941-01-31 | 1942-12-15 | Iowa Valve Company | Fire hydrant, street light standard, and similar structures |
US4167209A (en) * | 1975-08-15 | 1979-09-11 | The Electricity Council | Boilers |
US4492392A (en) * | 1983-01-19 | 1985-01-08 | Poly Processing Company, Inc. | Tank fitting |
US5097893A (en) * | 1989-08-03 | 1992-03-24 | Trimble Norman V | Counter flow tube-manifold radiant floor heating system |
US5690368A (en) * | 1995-09-25 | 1997-11-25 | Johnson; Arthur L. | Ultraseal sump adaptors models 54 and 541 |
US5967567A (en) * | 1998-01-15 | 1999-10-19 | Advanced Polymer Technology, Inc. | Matingly engaged flexible entry boot |
-
2007
- 2007-08-21 US US11/842,604 patent/US20090050078A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2305377A (en) * | 1941-01-31 | 1942-12-15 | Iowa Valve Company | Fire hydrant, street light standard, and similar structures |
US4167209A (en) * | 1975-08-15 | 1979-09-11 | The Electricity Council | Boilers |
US4492392A (en) * | 1983-01-19 | 1985-01-08 | Poly Processing Company, Inc. | Tank fitting |
US5097893A (en) * | 1989-08-03 | 1992-03-24 | Trimble Norman V | Counter flow tube-manifold radiant floor heating system |
US5690368A (en) * | 1995-09-25 | 1997-11-25 | Johnson; Arthur L. | Ultraseal sump adaptors models 54 and 541 |
US5967567A (en) * | 1998-01-15 | 1999-10-19 | Advanced Polymer Technology, Inc. | Matingly engaged flexible entry boot |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: PRECISION BOILERS, INC., TENNESSEE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHESTEEN, BRIAN;REEL/FRAME:019726/0075 Effective date: 20070818 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |