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
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L51/00—Expansion-compensation arrangements for pipe-lines
  • F16L51/04—Expansion-compensation arrangements for pipe-lines making use of bends, e.g. lyre-shaped
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
  • G01C3/00—Measuring distances in line of sight; Optical rangefinders
  • G01C3/02—Details
• • G—PHYSICS
  • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
  • G21C—NUCLEAR REACTORS
  • G21C13/00—Pressure vessels; Containment vessels; Containment in general
  • G21C13/02—Details
  • G21C13/032—Joints between tubes and vessel walls, e.g. taking into account thermal stresses
• • 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
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E30/00—Energy generation of nuclear origin
  • Y02E30/30—Nuclear fission reactors

Definitions

• the present invention relates to an arch connection of two pipes arranged at an angle to one another.
• the aim is generally to use the shortest possible pipelines and to build them for this purpose as compactly as is possible with regard to other important aspects, e.g. B. Accessibility for monitoring and repairs is possible.
• This aspect applies increasingly in nuclear plants and here again in particular to the primary area of a nuclear reactor, among other things in order to keep the complex radiation shielding as small as possible.
• the object of the present invention is an arc connection of two pipes, which has a high elasticity and thus allows the compensation of considerable thermal expansions in pipes in a small space.
• the connection should also meet the other requirements to be placed on a pipeline, for. B. in terms of testability, even after a certain operating period. It is advisable to lay the expansion compensation in the arched connections of two pipes arranged at an angle to each other, since such bends are more flexible than straight pipe sections anyway.
• the problem is solved by the features proposed in the characterizing part of claim 1.
• the connection of coaxially arranged pipe pieces of different diameters at their ends by means of semi-toroidal connecting pieces is known from DE-PS 22 59 584, where, however, it is an elastic passage of pipes through the wall of a nuclear reactor containment.
• the number of nested pipe bends is three, five, seven, etc .; when two pipes are connected. If, on the other hand, a pipeline is connected to a container, the number of nested pipe bends is two, four, six, etc. according to claim 3.
• the straight pipe pieces to be switched on according to claim 4 between the pipe bends and the semi-protruding connecting pieces have the task of compensating for the different elliptical deformation of the pipe bend cross sections or only making it possible because this is hindered by a direct attachment to the connecting pieces.
• a three-shell pipe bend z. B the deformation of the middle shell offset from the outer and inner shell by 90.
• the proposed frustoconical configuration of the straight pipe sections has the effect that, with only insignificantly enlarged dimensions, a larger path for the bending. is available than when using cylindrical pipe sections, but with increased manufacturing effort.
• connection consists of three pipe bends 3, 4, 5 arranged one inside the other and preferably coaxially with one another, with the inner pipe bend 5 at one end, with the first pipe 1 and the outer pipe bend 3 at its one end via a conical intermediate piece 14 the second pipe 2 is connected. At its free end (FIG.
• a straight, cylindrical pipe section 11 is attached to the inner pipe bend 5 and a further straight, cylindrical pipe section 12 is attached to the free end of the outer pipe bend 3.
• the middle pipe bend 4 also has straight at both ends, cylindrical pipe sections 10 and 13 of the same length as the previous ones.
• the straight pipe sections 32 and 13 or 10 and 13 are connected to one another by semi-toroidal (in cross section U-shaped) connecting pieces 6 and 7.
• the term torus is also intended to mean such include annular body, the cross section of which deviates from the pure circular shape, for. B. is elliptical.
• the distance between the pipe bends is such that they or the straight pipe sections adjoining them do not come into contact with one another in the bends to be expected.

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• General Engineering & Computer Science (AREA)
• Electromagnetism (AREA)
• General Physics & Mathematics (AREA)
• Radar, Positioning & Navigation (AREA)
• Remote Sensing (AREA)
• Plasma & Fusion (AREA)
• High Energy & Nuclear Physics (AREA)
• Mechanical Engineering (AREA)
• Joints Allowing Movement (AREA)
• Branch Pipes, Bends, And The Like (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Publications (1)

Family

ID=25773912

Family Applications (1)

Country Status (6)

Cited By (3)

Families Citing this family (9)

Citations (1)

Family Cites Families (3)

• 1979
  • 1979-02-12 JP JP50038979A patent/JPS55500098A/ja active Pending
  • 1979-02-12 WO PCT/DE1979/000015 patent/WO1979000656A1/de unknown
  • 1979-02-21 AT AT0133479A patent/AT373435B/de not_active IP Right Cessation
  • 1979-02-22 NL NL7901430A patent/NL7901430A/xx not_active Application Discontinuation
  • 1979-09-11 EP EP79900185A patent/EP0009496B1/de not_active Expired
  • 1979-10-18 US US06/175,209 patent/US4315644A/en not_active Expired - Lifetime

Patent Citations (1)

Non-Patent Citations (1)

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