NL7505659A - Sealed joint fittings for liquid sodium circuit - have outer spacer ring supporting inner elastically deformable packing - Google Patents

Sealed joint fittings for liquid sodium circuit - have outer spacer ring supporting inner elastically deformable packing

Info

Publication number
NL7505659A
NL7505659A NL7505659A NL7505659A NL7505659A NL 7505659 A NL7505659 A NL 7505659A NL 7505659 A NL7505659 A NL 7505659A NL 7505659 A NL7505659 A NL 7505659A NL 7505659 A NL7505659 A NL 7505659A
Authority
NL
Netherlands
Prior art keywords
ring
joint
liquid sodium
sodium circuit
spacer ring
Prior art date
Application number
NL7505659A
Other languages
Dutch (nl)
Other versions
NL161557C (en
NL161557B (en
Original Assignee
Schelde Nv
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 Schelde Nv filed Critical Schelde Nv
Priority to NL7505659A priority Critical patent/NL161557C/en
Publication of NL7505659A publication Critical patent/NL7505659A/en
Publication of NL161557B publication Critical patent/NL161557B/en
Application granted granted Critical
Publication of NL161557C publication Critical patent/NL161557C/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0881—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing the sealing effect being obtained by plastic deformation of the packing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
    • F16L23/20—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of metal

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Abstract

The packing for making a joint between the two surfaces of a joint fitting for the pipes of liquid sodium circuit in a heat exchanger, consists of two sealing rings which have different dimensions in the direction in which the joint is pulled up. Thus, when the joint is made, the ring which is highest, having undergone a permanent (plastic) deformation, acquires resilience to such a degree that, not only during normal running conditions, but also, when severe, abruptly changing mechanical and thermal loads are imposed, leakproof contact is maintained with the jointing surfaces, which are held at a fixed distance apart by the shorter spacer ring. The difference in height between the two rings is such that the highest ring is only elastically deformed, or it may be deformed to such an extent that it retains only 5-30% spring-back capacity relatively to the original difference in height. At the same time, the shorter ring is thicker in cross section than the taller thin ring, and when clamped, the latter takes up a barrel shape. completely effective in a liquid sodium circuit and also applicable successfully in other fields.
NL7505659A 1975-05-14 1975-05-14 SEALING CONSTRUCTION. NL161557C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7505659A NL161557C (en) 1975-05-14 1975-05-14 SEALING CONSTRUCTION.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7505659A NL161557C (en) 1975-05-14 1975-05-14 SEALING CONSTRUCTION.

Publications (3)

Publication Number Publication Date
NL7505659A true NL7505659A (en) 1976-11-16
NL161557B NL161557B (en) 1979-09-17
NL161557C NL161557C (en) 1980-02-15

Family

ID=19823741

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7505659A NL161557C (en) 1975-05-14 1975-05-14 SEALING CONSTRUCTION.

Country Status (1)

Country Link
NL (1) NL161557C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2291940A (en) * 1994-08-02 1996-02-07 Columbian Chem Mechanical tube sealing system
CN110375133A (en) * 2018-04-12 2019-10-25 石川密封垫板有限责任公司 Gasket

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2291940A (en) * 1994-08-02 1996-02-07 Columbian Chem Mechanical tube sealing system
US5538261A (en) * 1994-08-02 1996-07-23 Columbian Chemicals Company Mechanical heat-exchange tube sealing system
GB2291940B (en) * 1994-08-02 1998-04-01 Columbian Chem Mechanical tube sealing system
CN110375133A (en) * 2018-04-12 2019-10-25 石川密封垫板有限责任公司 Gasket

Also Published As

Publication number Publication date
NL161557C (en) 1980-02-15
NL161557B (en) 1979-09-17

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Legal Events

Date Code Title Description
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: SCHELDE

V4 Lapsed because of reaching the maxim lifetime of a patent