JPS5758931A - Pipe expander - Google Patents

Pipe expander

Info

Publication number
JPS5758931A
JPS5758931A JP13289680A JP13289680A JPS5758931A JP S5758931 A JPS5758931 A JP S5758931A JP 13289680 A JP13289680 A JP 13289680A JP 13289680 A JP13289680 A JP 13289680A JP S5758931 A JPS5758931 A JP S5758931A
Authority
JP
Japan
Prior art keywords
pipe
medium
heat transmission
pipe expanding
expanding
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.)
Pending
Application number
JP13289680A
Other languages
Japanese (ja)
Inventor
Hideaki Kanbara
Fujitsugu Nakatsui
Yuji Yoshitomi
Yasukata Tamai
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13289680A priority Critical patent/JPS5758931A/en
Publication of JPS5758931A publication Critical patent/JPS5758931A/en
Pending legal-status Critical Current

Links

Landscapes

  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

PURPOSE: To increase the range of expandable length of a heat transmission tube in expanding a heat transmission pipe of a multitubular heat exchanger using a pressure rod and a pipe expanding medium by installing a bush provided with a flange between the rod and medium.
CONSTITUTION: A pipe expanding medium 8 and a pressure rod 7 that pressurizes the medium to swell out it in the direction of diameter of the heat transmission pipe are provided in a heat transmission pipe 1 to be expanded, and a nut 11 and a bush 15 provided with a flange 19 that is in contact with a seal ring 9 are installed between them. A recessed part 20 formed to fit the end of the bush 15 is provided on the pipe expanding medium side of a sleeve 13. By this structure, the thickness of the pipe expanding medium 8 can be made small, and it is made possible to enlarge the pressure applicable to inside of the pipe for the same level of pipe expanding load. Further, pipe expanding operation by swelling out of the pipe expanding medium in the direction of diameter can be made in a long range on the heat transmission pipe 1.
COPYRIGHT: (C)1982,JPO&Japio
JP13289680A 1980-09-26 1980-09-26 Pipe expander Pending JPS5758931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13289680A JPS5758931A (en) 1980-09-26 1980-09-26 Pipe expander

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13289680A JPS5758931A (en) 1980-09-26 1980-09-26 Pipe expander

Publications (1)

Publication Number Publication Date
JPS5758931A true JPS5758931A (en) 1982-04-09

Family

ID=15092075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13289680A Pending JPS5758931A (en) 1980-09-26 1980-09-26 Pipe expander

Country Status (1)

Country Link
JP (1) JPS5758931A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8201636B2 (en) 2008-02-19 2012-06-19 Weatherford/Lamb, Inc. Expandable packer
US9551201B2 (en) 2008-02-19 2017-01-24 Weatherford Technology Holdings, Llc Apparatus and method of zonal isolation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8201636B2 (en) 2008-02-19 2012-06-19 Weatherford/Lamb, Inc. Expandable packer
US8499844B2 (en) 2008-02-19 2013-08-06 Weatherford/Lamb, Inc. Expandable packer
US8967281B2 (en) 2008-02-19 2015-03-03 Weatherford/Lamb, Inc. Expandable packer
US9551201B2 (en) 2008-02-19 2017-01-24 Weatherford Technology Holdings, Llc Apparatus and method of zonal isolation
US9903176B2 (en) 2008-02-19 2018-02-27 Weatherford Technology Holdings, Llc Expandable packer

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