FR2439375A1 - Tool for inserting tubes into heat exchangers - compresses stack of O=rings in axial direction to expand tube radially into header plate - Google Patents

Tool for inserting tubes into heat exchangers - compresses stack of O=rings in axial direction to expand tube radially into header plate

Info

Publication number
FR2439375A1
FR2439375A1 FR7925600A FR7925600A FR2439375A1 FR 2439375 A1 FR2439375 A1 FR 2439375A1 FR 7925600 A FR7925600 A FR 7925600A FR 7925600 A FR7925600 A FR 7925600A FR 2439375 A1 FR2439375 A1 FR 2439375A1
Authority
FR
France
Prior art keywords
rings
tool
axial direction
heat exchangers
header plate
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.)
Granted
Application number
FR7925600A
Other languages
French (fr)
Other versions
FR2439375B1 (en
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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
Priority claimed from US05/951,927 external-priority patent/US4263713A/en
Priority claimed from US05/955,688 external-priority patent/US4235013A/en
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of FR2439375A1 publication Critical patent/FR2439375A1/en
Application granted granted Critical
Publication of FR2439375B1 publication Critical patent/FR2439375B1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B21D39/20—Tube expanders with mandrels, e.g. expandable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B21D39/20—Tube expanders with mandrels, e.g. expandable
    • B21D39/203—Tube expanders with mandrels, e.g. expandable expandable by fluid or elastic material
    • B21D39/206—Tube expanders with mandrels, e.g. expandable expandable by fluid or elastic material by axially compressing the elastic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
    • B23P19/022—Extracting or inserting relatively long parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

A tool for inserting the tubes (20) of tubular heat exchangers into the header plates (64) consists of a shaft (56) with a coned end (32). The shaft (56) has a central bore to receive a screwed rod (40) with a stepped tapered end (44, 46, 48). The tapered end (48) is used to guide the tube (20) into the hole in the header plate (64). When the tube (20) is in position it is expanded by screwing down the piston (42) by means of the rod (40). The piston compresses a stack of elastomeric O-rings (28) in the axial direction causing them to expand radially so that they in turn expand the tube (20).
FR7925600A 1978-10-16 1979-10-15 GUIDE-EXPANDER FOR BOILER TUBES Expired FR2439375B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/951,927 US4263713A (en) 1978-10-16 1978-10-16 Apparatus for actuating and extracting a tube guide-expander
US05/955,688 US4235013A (en) 1978-10-30 1978-10-30 Tube guide-expander

Publications (2)

Publication Number Publication Date
FR2439375A1 true FR2439375A1 (en) 1980-05-16
FR2439375B1 FR2439375B1 (en) 1986-11-28

Family

ID=27130321

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7925600A Expired FR2439375B1 (en) 1978-10-16 1979-10-15 GUIDE-EXPANDER FOR BOILER TUBES

Country Status (3)

Country Link
DE (1) DE2940020A1 (en)
ES (1) ES485077A0 (en)
FR (1) FR2439375B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2550117A1 (en) * 1983-08-02 1985-02-08 Arbel Industrie Device for extracting rings and particularly large expansible plugs

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2135861A (en) * 1935-08-07 1938-11-08 Colonial Broach Co Pull broaching machine
US2751229A (en) * 1953-11-16 1956-06-19 Arthur B Schultz Releasable gripper for holding an article suspended
FR1377413A (en) * 1963-09-13 1964-11-06 Creusot Forges Ateliers Expansion device
US3791011A (en) * 1972-04-24 1974-02-12 J Keys Tube pulling device
US3835520A (en) * 1973-09-10 1974-09-17 Harris R Tube pulling apparatus
US4006619A (en) * 1975-08-07 1977-02-08 James Hilbert Anderson Tube expander utilizing hydraulically actuated pistons
DE2641950A1 (en) * 1975-09-18 1977-03-24 Ici Ltd Sealing of joint between tube and header plate - has deformable bush exppppanding tube againsssst nylon insert(BE170377)

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2135861A (en) * 1935-08-07 1938-11-08 Colonial Broach Co Pull broaching machine
US2751229A (en) * 1953-11-16 1956-06-19 Arthur B Schultz Releasable gripper for holding an article suspended
FR1377413A (en) * 1963-09-13 1964-11-06 Creusot Forges Ateliers Expansion device
US3791011A (en) * 1972-04-24 1974-02-12 J Keys Tube pulling device
US3835520A (en) * 1973-09-10 1974-09-17 Harris R Tube pulling apparatus
US4006619A (en) * 1975-08-07 1977-02-08 James Hilbert Anderson Tube expander utilizing hydraulically actuated pistons
DE2641950A1 (en) * 1975-09-18 1977-03-24 Ici Ltd Sealing of joint between tube and header plate - has deformable bush exppppanding tube againsssst nylon insert(BE170377)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2550117A1 (en) * 1983-08-02 1985-02-08 Arbel Industrie Device for extracting rings and particularly large expansible plugs

Also Published As

Publication number Publication date
DE2940020A1 (en) 1980-04-30
ES8102861A1 (en) 1981-02-16
ES485077A0 (en) 1981-02-16
FR2439375B1 (en) 1986-11-28

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Legal Events

Date Code Title Description
CL Concession to grant licences
ST Notification of lapse