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FR2343985A1 - Explosively expanded plug - for sealing defective tubes in a heat exchanger has central partition and two explosive charges - Google Patents

Explosively expanded plug - for sealing defective tubes in a heat exchanger has central partition and two explosive charges

Info

Publication number
FR2343985A1
FR2343985A1 FR7606728A FR7606728A FR2343985A1 FR 2343985 A1 FR2343985 A1 FR 2343985A1 FR 7606728 A FR7606728 A FR 7606728A FR 7606728 A FR7606728 A FR 7606728A FR 2343985 A1 FR2343985 A1 FR 2343985A1
Authority
FR
France
Prior art keywords
heat exchanger
plug
cavity
plate
central partition
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
FR7606728A
Other languages
French (fr)
Other versions
FR2343985B1 (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.)
HOLLAND EXPLOSIVE METAL
Explosive Metal Working Holland BV
Original Assignee
HOLLAND EXPLOSIVE METAL
Explosive Metal Working Holland BV
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 HOLLAND EXPLOSIVE METAL, Explosive Metal Working Holland BV filed Critical HOLLAND EXPLOSIVE METAL
Priority to FR7606728A priority Critical patent/FR2343985A1/en
Publication of FR2343985A1 publication Critical patent/FR2343985A1/en
Application granted granted Critical
Publication of FR2343985B1 publication Critical patent/FR2343985B1/fr
Granted legal-status Critical Current

Links

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
    • F28F11/02—Arrangements for sealing leaky tubes and conduits using obturating elements, e.g. washers, inserted and operated independently of each other

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

In the sealing of an opening a tube plate at the position where the end of a pipe of the heat exchanger is welded in a bore in the plate, using a hollow metal plug containing locally explosive material and detonating means, which is placed in the cavity within the plate and is thereafter radially expanded by detonating the explosive in such a way that it forms a gas- and liquid- tight joint with the wall of the heat exchanger surrounding the cavity, (i) a plug divided by a partition wall into two coaxial cavities, each open at one end and contg. an explosive charge and detonator and (ii) after the plug has been placed in position within the relevant cavity in the tube plate, both charges are exploded (nearly) simultaneously. There is no risk of crack corrosion between the tube plate and the closed end of the plug.
FR7606728A 1976-03-09 1976-03-09 Explosively expanded plug - for sealing defective tubes in a heat exchanger has central partition and two explosive charges Granted FR2343985A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7606728A FR2343985A1 (en) 1976-03-09 1976-03-09 Explosively expanded plug - for sealing defective tubes in a heat exchanger has central partition and two explosive charges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7606728A FR2343985A1 (en) 1976-03-09 1976-03-09 Explosively expanded plug - for sealing defective tubes in a heat exchanger has central partition and two explosive charges

Publications (2)

Publication Number Publication Date
FR2343985A1 true FR2343985A1 (en) 1977-10-07
FR2343985B1 FR2343985B1 (en) 1978-08-25

Family

ID=9170176

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7606728A Granted FR2343985A1 (en) 1976-03-09 1976-03-09 Explosively expanded plug - for sealing defective tubes in a heat exchanger has central partition and two explosive charges

Country Status (1)

Country Link
FR (1) FR2343985A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428200A1 (en) * 1978-06-09 1980-01-04 Babcock & Wilcox Co TUBE PLUG, EXPLOSIVE ACTIVATED
FR2494423A1 (en) * 1980-11-17 1982-05-21 Kraftwerk Union Ag PLUG FOR REPAIRING A HEAT EXCHANGER TUBE, PARTICULARLY FOR A STEAM GENERATOR OF PRESSURE WATER NUCLEAR POWER PLANT
FR3132784A1 (en) * 2022-02-11 2023-08-18 Framatome Method of repairing a steam generator of a nuclear reactor, corresponding steam generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428200A1 (en) * 1978-06-09 1980-01-04 Babcock & Wilcox Co TUBE PLUG, EXPLOSIVE ACTIVATED
FR2494423A1 (en) * 1980-11-17 1982-05-21 Kraftwerk Union Ag PLUG FOR REPAIRING A HEAT EXCHANGER TUBE, PARTICULARLY FOR A STEAM GENERATOR OF PRESSURE WATER NUCLEAR POWER PLANT
FR3132784A1 (en) * 2022-02-11 2023-08-18 Framatome Method of repairing a steam generator of a nuclear reactor, corresponding steam generator

Also Published As

Publication number Publication date
FR2343985B1 (en) 1978-08-25

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Legal Events

Date Code Title Description
ST Notification of lapse