US13488A - Improved method of facilitating the removal of incrustation from steam-boilers - Google Patents
Improved method of facilitating the removal of incrustation from steam-boilers Download PDFInfo
- Publication number
- US13488A US13488A US13488DA US13488A US 13488 A US13488 A US 13488A US 13488D A US13488D A US 13488DA US 13488 A US13488 A US 13488A
- Authority
- US
- United States
- Prior art keywords
- incrustation
- removal
- boilers
- facilitating
- steam
- 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
- 210000003746 Feathers Anatomy 0.000 description 14
- 239000002184 metal Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 12
- 206010022000 Influenza Diseases 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000006011 modification reaction Methods 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G7/00—Cleaning by vibration or pressure waves
Definitions
- my invention consists in preventing the incrustation from forming on the entire circle of the internal or external surface of tubes or flues by placing strips of metal in contact with the metal surface to prevent the union of the incrustation along such line of contact, so that the scale formed may be readily re moved.
- c represents a water-tube, inside of which is placed a strip of metal forming three radial wings or feathers, b b b, extending the whole length of the tube, with the edges of the feathers in contact with the inner surface of the tube.
- the incrustation will not be formed, so that by drawing out the wings the incrustation will present three segments of the circle, which in brass or smooth copper tubes will drop off and be washed out and in iron tubes will b'e readily scaled off and removed.
- thetube is curved at one end, as at c, the wings only extend along the straight part, and to the end is attached a Wire or other flexible substance, d, which extends up through the curved part and is secured at the upper end. In this way the wings can be drawn out and inserted, and the wire d will bein contact with the bent surface and there Inake a break in the incrustation to admit of removing it.
- the number of wings or feathers may be increased at pleasure, and, instead of being straight, they may be twisted, so that in the act of drawing out the wings the scale will be drawn out with them.
- the drawing out of the wings or feathers can be readily done, particularly when the tubes are slightly conical. ⁇ 7 hen conical tubes are placed in a vertical or nearly vertical position, and with the larger end up, the edge of the wings may be made tapering-that is, so much thicker at the upper than the lower end that the segments of incrustation formed between the Wings will drop freely out of the lower-end of the tubes.
- the wings or feathers should be applied to their outer surfaces, as represented in Figs. 3 and et of the accompanying drawings, Where e e represent two tubular. flues with three wings or feathers, f f f, one resting on the top of the lower flue and the other two bearing against the under surface of the upper flue. It will be obvious that the Wings applied in this or any analogous Way will leave breaks in the circle of the incrustation, which will facilitate its removal.
- g represents a water-tube With a strip of metal, h, in contact or nearly in contact with the external surface and along the entire length. This will prevent the forming of an incrustation along that part of the inner surface of the tube that is along that part of the surface which is immediately opposite the strip of metal.
Description
UNITED STATES PATENT OFFICE.
FREDERICK P. DIIWIPFEL, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVED METHOD 0F FACILITATING THE REMOVAL OF INCRUSTATION FROM STEAM-BOILERS.
Specification forming part of Letters Patent No. 13,4S8, dated August 28, 1855..
To all whom t 71mg/ concern:
Be it known that I, FREDERICK P. DIMP- FEL, of Philadelphia, in the State of Pennsylvania, have invented a new and useful Improvement in the Method of Facilitating the Removal of Incrustation from the Pubes of Steam-Boilers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in which- Figure l is a longitudinal section of a tube; Fig. 2, a cross-section thereof. Figs. 3 and 4 are like sections of a modification of my invention, and Figs. 5 and 6 like sections of another modification.
It is well known that the principal difficulty in removing the incrustat-ion formed on the cylindrical surface of the tubes of steamboilers, particularly on the inside, arises from the fact that the incrustation formed presents a complete circle which cannot loe removed until it is broken. The adherence of the incrustation to the surface of some metals is very 'slight and to others greater, but will be overcome by expansion and contraction, and, if the incrustation can be prevented from forming on the entire circle of the tube, it can be readily removed.
In view of these well-known facts my invention consists in preventing the incrustation from forming on the entire circle of the internal or external surface of tubes or flues by placing strips of metal in contact with the metal surface to prevent the union of the incrustation along such line of contact, so that the scale formed may be readily re moved.
In Figs. l and 2 of the accompanying drawings, c represents a water-tube, inside of which is placed a strip of metal forming three radial wings or feathers, b b b, extending the whole length of the tube, with the edges of the feathers in contact with the inner surface of the tube. Along the lines of contact of the feathers the incrustation will not be formed, so that by drawing out the wings the incrustation will present three segments of the circle, which in brass or smooth copper tubes will drop off and be washed out and in iron tubes will b'e readily scaled off and removed. Vhen thetube is curved at one end, as at c, the wings only extend along the straight part, and to the end is attached a Wire or other flexible substance, d, which extends up through the curved part and is secured at the upper end. In this way the wings can be drawn out and inserted, and the wire d will bein contact with the bent surface and there Inake a break in the incrustation to admit of removing it.
The number of wings or feathers may be increased at pleasure, and, instead of being straight, they may be twisted, so that in the act of drawing out the wings the scale will be drawn out with them. The drawing out of the wings or feathers can be readily done, particularly when the tubes are slightly conical. `7 hen conical tubes are placed in a vertical or nearly vertical position, and with the larger end up, the edge of the wings may be made tapering-that is, so much thicker at the upper than the lower end that the segments of incrustation formed between the Wings will drop freely out of the lower-end of the tubes.
In the case of cylindrical or nearly cylindrical flues the wings or feathers should be applied to their outer surfaces, as represented in Figs. 3 and et of the accompanying drawings, Where e e represent two tubular. flues with three wings or feathers, f f f, one resting on the top of the lower flue and the other two bearing against the under surface of the upper flue. It will be obvious that the Wings applied in this or any analogous Way will leave breaks in the circle of the incrustation, which will facilitate its removal.
I contemplate also applying the principle of my invention as represented in Figs. 5 and 6, where g represents a water-tube With a strip of metal, h, in contact or nearly in contact with the external surface and along the entire length. This will prevent the forming of an incrustation along that part of the inner surface of the tube that is along that part of the surface which is immediately opposite the strip of metal.
I have thus described my invention and pointed out the various modes in which I have contemplated its application that the modes of operation may be distinguished from the mere modes of application.
Vhat I claim as my invention, and desire to secure by Letters Patent, is-
The method, substantially as herein described, of facilitating the removal of incrustation in steam-boilers by inducing breaks in the circle of the incrustation, in the manner substantially as described.
Vitnesses: F. P. DIMPFEL.
JOHN THOMPSON, WM. H. KIsTEEBocK.
Publications (1)
Publication Number | Publication Date |
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US13488A true US13488A (en) | 1855-08-28 |
Family
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Family Applications (1)
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US13488D Expired - Lifetime US13488A (en) | Improved method of facilitating the removal of incrustation from steam-boilers |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100282485A1 (en) * | 2009-05-05 | 2010-11-11 | Black & Decker Inc. | Power tool with integrated bit retention device |
US20160139783A1 (en) * | 2014-11-13 | 2016-05-19 | Microsoft Technology Licensing, Llc | Detecting sidebar in document |
-
0
- US US13488D patent/US13488A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100282485A1 (en) * | 2009-05-05 | 2010-11-11 | Black & Decker Inc. | Power tool with integrated bit retention device |
US20160139783A1 (en) * | 2014-11-13 | 2016-05-19 | Microsoft Technology Licensing, Llc | Detecting sidebar in document |
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