SE0000501D0 - Control device at a nuclear plant - Google Patents

Control device at a nuclear plant

Info

Publication number
SE0000501D0
SE0000501D0 SE0000501A SE0000501A SE0000501D0 SE 0000501 D0 SE0000501 D0 SE 0000501D0 SE 0000501 A SE0000501 A SE 0000501A SE 0000501 A SE0000501 A SE 0000501A SE 0000501 D0 SE0000501 D0 SE 0000501D0
Authority
SE
Sweden
Prior art keywords
guide
drive
crystalline carbon
pump
valve
Prior art date
Application number
SE0000501A
Other languages
Swedish (sv)
Other versions
SE0000501L (en
SE522362C2 (en
Inventor
Hans Kornfeldt
Lars Axling
Original Assignee
Abb Ab
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 Abb Ab filed Critical Abb Ab
Priority to SE0000501A priority Critical patent/SE522362C2/en
Publication of SE0000501D0 publication Critical patent/SE0000501D0/en
Priority to FI20010298A priority patent/FI20010298A/en
Publication of SE0000501L publication Critical patent/SE0000501L/en
Publication of SE522362C2 publication Critical patent/SE522362C2/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/26—Deposition of carbon only
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/26—Deposition of carbon only
    • C23C16/27—Diamond only
    • 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
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • 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
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/2003—Screw mechanisms with arrangements for taking up backlash
    • F16H25/2009—Screw mechanisms with arrangements for taking up backlash with radial preloading
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
    • G21C7/12—Means for moving control elements to desired position
    • G21C7/14—Mechanical drive arrangements
    • 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
    • Y02E30/39—

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Transmission Devices (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

A friction-reducing crystalline carbon coating is provided on at least some of the moving parts subjected to frictional contact in a guide, drive, pump or valve device. A guide device for use in a nuclear installation comprises at least a guide body (23a, 23b) with a surface designed to come into at least partial contact with a power transmission device (10) movable relative to the guide device. The surface is provided with a friction-reducing coating of crystalline carbon. Independent claims are also included for the following: (a) a drive device for at least one control rod in a nuclear installation, comprising an elongated guide tube (4) inside a drive tool housing at least partly surrounded by an elongated transmission screw, and a drive tool nut (14) associated with the tube, at least one of the screw or nut having a crystalline carbon coating; (b) a pump for use in a nuclear installation, comprising a casing at least partially surrounding a drive device with moving parts and an axle opening for connecting the drive device to a pump body via a shaft, at least one of the axle guide device (e.g. sliding seal, sliding guide, packing box, slide bearing or rotary bearing) having a crystalline carbon coating; (c) a valve device for use in a nuclear installation, comprising a casing at least partially surrounding a valve body with at least one bearing surface and/or seal surface, at least one of these surfaces being coated with crystalline carbon; and (d) nuclear installations containing these drive, pump or valve devices.
SE0000501A 2000-02-16 2000-02-16 Guide, drive, pump or valve device for use in nuclear installation, has moving parts provided with crystalline carbon coating SE522362C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE0000501A SE522362C2 (en) 2000-02-16 2000-02-16 Guide, drive, pump or valve device for use in nuclear installation, has moving parts provided with crystalline carbon coating
FI20010298A FI20010298A (en) 2000-02-16 2001-02-16 Control device at a nuclear plant, propulsion device and a nuclear plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0000501A SE522362C2 (en) 2000-02-16 2000-02-16 Guide, drive, pump or valve device for use in nuclear installation, has moving parts provided with crystalline carbon coating

Publications (3)

Publication Number Publication Date
SE0000501D0 true SE0000501D0 (en) 2000-02-16
SE0000501L SE0000501L (en) 2001-08-17
SE522362C2 SE522362C2 (en) 2004-02-03

Family

ID=20278473

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0000501A SE522362C2 (en) 2000-02-16 2000-02-16 Guide, drive, pump or valve device for use in nuclear installation, has moving parts provided with crystalline carbon coating

Country Status (2)

Country Link
FI (1) FI20010298A (en)
SE (1) SE522362C2 (en)

Also Published As

Publication number Publication date
FI20010298A (en) 2001-08-17
SE0000501L (en) 2001-08-17
SE522362C2 (en) 2004-02-03
FI20010298A0 (en) 2001-02-16

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Legal Events

Date Code Title Description
NUG Patent has lapsed