US3643701A - Emergency monowall tube repair kit - Google Patents

Emergency monowall tube repair kit Download PDF

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Publication number
US3643701A
US3643701A US71955A US3643701DA US3643701A US 3643701 A US3643701 A US 3643701A US 71955 A US71955 A US 71955A US 3643701D A US3643701D A US 3643701DA US 3643701 A US3643701 A US 3643701A
Authority
US
United States
Prior art keywords
pipe
opening
collar
tube
gaskets
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
Application number
US71955A
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English (en)
Inventor
Michael Wadiak
George T Higham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foster Wheeler Inc
Original Assignee
Foster Wheeler Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Foster Wheeler Inc filed Critical Foster Wheeler Inc
Application granted granted Critical
Publication of US3643701A publication Critical patent/US3643701A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F11/00—Arrangements for sealing leaky tubes and conduits
    • F28F11/04—Arrangements for sealing leaky tubes and conduits using pairs of obturating elements, e.g. washers, mounted upon central operating rods
    • 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
    • Y10T29/49718—Repairing
    • Y10T29/49732—Repairing by attaching repair preform, e.g., remaking, restoring, or patching
    • Y10T29/49734—Repairing by attaching repair preform, e.g., remaking, restoring, or patching and removing damaged material

Definitions

  • ABSTRACT [52] US. CL. ..l38/97, 29/401, l65/76, A quick temporary repair for a ruptured tube which is one of 11 285/15 number of parallel tubes making up a boiler furnace wall.
  • the [51] Int. Cl ..Fl6l 55/16 rupture is enlarged to form an Opening large enough to accept [58] Field of Search 1 38/97; 165/76; 285/ 15, 370; a pip h ving a e h en a gaske which may be compressed axially and consequently to expand radially to engage the sidewalls of the tube so that the water or steam will pass through the pipe rather than pass out of the rupture.
  • a tube which has ruptured so that it is expelling steam or water is cut so that the rupture is enlarged into an opening large enough to permit the insertion of a pipe within the tube, having at each of its ends a gasket which may be compressed axially so that it expands radially to engage against the outside surface of the pipe and the inside surface of the tube and prevent escape of steam or water.
  • FIG. I is a front fragmentary view showing a furnace wall provided with a window to permit insertion of the present device.
  • FIG. 2 is a view, partly in section, taken along the line 22 of FIG. I, and
  • FIG. 3 is a side view partly in section in an enlarged scale showing a boiler tube while being repaired in accordance with the present invention.
  • FIG. 1 a portion of a furnace wall made up of parallel tubes l2, l4, 16, I8 and are joined by fins 22, 24, 26 and 28.
  • the tube 16 has been provided with a window 30 which has been cut in that tube to enlarge a rupture in the tube wall.
  • FIG. 3 a pipe section 32 has been placed in the tube 16 so that one end 34 projects upwardly beyond the window and the other end 36 projects below it. This may be accomplished by passing one of the ends, 34 for example, upwardly beyond the top of the window 30 until the lower end 36 is above the bottom of the window and then lowering the pipe 32 to the position shown in FIG. 3.
  • Adjacent to the end 34 is a threaded section 38 and adjacent to the end 36 is a threaded section 40.
  • An end ring 42 is threaded on the section 38 while an end ring 44 is threaded on the section 40.
  • the end rings 42 are positioned on the pipe before it is placed as shown in FIG. 3, Also placed on the pipe 32 before it is placed in the tube are two collars 46 and 48, the collar 46 being threaded on the section 38 adjacent to the ring 42 and the collar 48 being threaded on the section 42 adjacent to the ring 44.
  • Between the collar 46 and the ring 42 is an annular deformable gasket 50, and between the collar 48 and ring 44 is a similar gasket 52.
  • the collars 46 and 48 may be turned to compress their cooperating gaskets 50 and 52 against the rings 42 and 44 respectively. Compressing the gaskets axially expands them radially to engage tightly between the inside wall 16 and the outside surface of the pipe 32.
  • the collar 46 has been turned sufficiently to so compress the gasket 50.
  • the collar 48 has not been turned, so that there is some space between the gasket 52 and the ring 44.
  • the collar 48 has been turned sufficiently to compress the gasket 52, the tube 16 will have been completely repaired and will operate until a permanent repair can be made.
  • the collars 46 and 48 are shown with a number of holes 54 which project inwardly far enough to allow a rod to be inserted and used to turn the collars about the pipe 32 sufficiently to compress the gaskets 50 and 52.
  • Other means can be provided on the collars'46 and 48 to facilitate turning them sufficiently to compress the gaskets 50 and 52 to the point where a hermetic seal is provided between the pipe 32 and the tube 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pipe Accessories (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
US71955A 1970-09-14 1970-09-14 Emergency monowall tube repair kit Expired - Lifetime US3643701A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7195570A 1970-09-14 1970-09-14

Publications (1)

Publication Number Publication Date
US3643701A true US3643701A (en) 1972-02-22

Family

ID=22104649

Family Applications (1)

Application Number Title Priority Date Filing Date
US71955A Expired - Lifetime US3643701A (en) 1970-09-14 1970-09-14 Emergency monowall tube repair kit

Country Status (7)

Country Link
US (1) US3643701A (cs)
JP (1) JPS5421481B1 (cs)
CA (1) CA938568A (cs)
DK (1) DK134249B (cs)
GB (1) GB1353240A (cs)
NO (1) NO134229C (cs)
SE (1) SE361209B (cs)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3700265A (en) * 1972-02-04 1972-10-24 Northern Illinois Gas Co Internal pipe sealing device
US3889820A (en) * 1973-08-01 1975-06-17 Combustion Eng Method and apparatus for suspendedly supporting a platform
US3934731A (en) * 1972-12-22 1976-01-27 Siemens Aktiengesellschaft Apparatus for inspecting and repairing a pressurized-water reactor's steam generator heat exchanger tubes
US4069573A (en) * 1976-03-26 1978-01-24 Combustion Engineering, Inc. Method of securing a sleeve within a tube
USRE30802E (en) * 1976-03-26 1981-11-24 Combustion Engineering, Inc. Method of securing a sleeve within a tube
US4605155A (en) * 1985-08-30 1986-08-12 The United States Of America As Represented By The Administrator, National Aeronautics And Space Administration Method of repairing hidden leaks in tubes
WO2006121400A1 (en) * 2005-05-10 2006-11-16 Metso Power Ab Insert tube and a system of insert tubes
CN103982746A (zh) * 2014-05-16 2014-08-13 江苏唐电建设有限公司 一种快速修复锅炉空气预热器管的方法及其对应结构

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2254119B (en) * 1991-03-28 1995-01-11 Kubota Kk Corrosion-preventive sleeve for hole in metal pipe and tool for mounting the same
GB2315838A (en) * 1996-08-01 1998-02-11 British Gas Plc Apparatus and method for sealing a clearance between a host pipe and a liner pipe
GB9625365D0 (en) * 1996-12-05 1997-01-22 British Gas Plc Stopping off device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731041A (en) * 1952-06-18 1956-01-17 Mueller Co By-pass assembly for service pipes
US3183939A (en) * 1960-11-25 1965-05-18 Ralph C Immel Valved bridging plug and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731041A (en) * 1952-06-18 1956-01-17 Mueller Co By-pass assembly for service pipes
US3183939A (en) * 1960-11-25 1965-05-18 Ralph C Immel Valved bridging plug and method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3700265A (en) * 1972-02-04 1972-10-24 Northern Illinois Gas Co Internal pipe sealing device
US3934731A (en) * 1972-12-22 1976-01-27 Siemens Aktiengesellschaft Apparatus for inspecting and repairing a pressurized-water reactor's steam generator heat exchanger tubes
US3889820A (en) * 1973-08-01 1975-06-17 Combustion Eng Method and apparatus for suspendedly supporting a platform
US4069573A (en) * 1976-03-26 1978-01-24 Combustion Engineering, Inc. Method of securing a sleeve within a tube
USRE30802E (en) * 1976-03-26 1981-11-24 Combustion Engineering, Inc. Method of securing a sleeve within a tube
US4605155A (en) * 1985-08-30 1986-08-12 The United States Of America As Represented By The Administrator, National Aeronautics And Space Administration Method of repairing hidden leaks in tubes
WO2006121400A1 (en) * 2005-05-10 2006-11-16 Metso Power Ab Insert tube and a system of insert tubes
US20080268389A1 (en) * 2005-05-10 2008-10-30 Lennart Nordh Insert Tube and a System of Insert Tubes
CN103982746A (zh) * 2014-05-16 2014-08-13 江苏唐电建设有限公司 一种快速修复锅炉空气预热器管的方法及其对应结构

Also Published As

Publication number Publication date
CA938568A (en) 1973-12-18
DK134249C (cs) 1977-03-07
NO134229C (cs) 1976-09-08
GB1353240A (en) 1974-05-15
DK134249B (da) 1976-10-04
SE361209B (cs) 1973-10-22
NO134229B (cs) 1976-05-24
JPS5421481B1 (cs) 1979-07-31

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