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SE9403564D0 - Thermal insulation device and insulating element for the shaft of a thermal roller - Google Patents

Thermal insulation device and insulating element for the shaft of a thermal roller

Info

Publication number
SE9403564D0
SE9403564D0 SE9403564A SE9403564A SE9403564D0 SE 9403564 D0 SE9403564 D0 SE 9403564D0 SE 9403564 A SE9403564 A SE 9403564A SE 9403564 A SE9403564 A SE 9403564A SE 9403564 D0 SE9403564 D0 SE 9403564D0
Authority
SE
Sweden
Prior art keywords
heat insulating
cavity
wall portion
insulating element
thermal
Prior art date
Application number
SE9403564A
Other languages
Swedish (sv)
Other versions
SE9403564L (en
SE512375C2 (en
Inventor
Pekka Koivukunnas
Original Assignee
Valmet Paper Machinery Inc
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 Valmet Paper Machinery Inc filed Critical Valmet Paper Machinery Inc
Publication of SE9403564D0 publication Critical patent/SE9403564D0/en
Publication of SE9403564L publication Critical patent/SE9403564L/en
Publication of SE512375C2 publication Critical patent/SE512375C2/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0253—Heating or cooling the rolls; Regulating the temperature
    • D21G1/0266—Heating or cooling the rolls; Regulating the temperature using a heat-transfer fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
    • B29C33/044—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam in rolls calenders or drums
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
    • F26B13/18—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning heated or cooled, e.g. from inside, the material being dried on the outside surface by conduction
    • F26B13/183—Arrangements for heating, cooling, condensate removal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F5/00—Elements specially adapted for movement
    • F28F5/02—Rotary drums or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/08—Lubricating, cooling or heating rolls internally
    • B21B2027/086—Lubricating, cooling or heating rolls internally heating internally

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Fixing For Electrophotography (AREA)
  • Paper (AREA)

Abstract

PURPOSE: To provide an excellent heat insulating capacity that displays the least sensitive reaction to stress applied thereto by operating environments by interposing a wall portion between another wall portion and a shaft periphery in sealed fashion so that it defines together with the second wall portion a cavity enclosing a longitudinal channel. CONSTITUTION: A heat insulating element 10 enclosing an oil feed channel 6 and an oil return channel 7 comprises an inner cylindrical bushing 11 functioning as the outer wall of the heating oil return channel 7 and an outer bushing 12 delimiting, together with an end member of the element 10, a cavity. The end member is joined to one end of the bushings 11 and 12 via electron beam welding within a vacuum chamber. The sealed cavity of the heat insulating element 10 maintains the same vacuum state as the vacuum chamber of the welding equipment in operation creates typically in the order of 10 Pa or 1&times;10<-4> bar. The vacuum cavity has an excellent heat insulating capacity.
SE9403564A 1993-10-20 1994-10-19 Thermal insulation device and insulating element for the shaft of a thermal roller SE512375C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI934635A FI100200B (en) 1993-10-20 1993-10-20 Thermal roll shaft insulation arrangement and insulation piece

Publications (3)

Publication Number Publication Date
SE9403564D0 true SE9403564D0 (en) 1994-10-19
SE9403564L SE9403564L (en) 1995-04-21
SE512375C2 SE512375C2 (en) 2000-03-06

Family

ID=8538810

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9403564A SE512375C2 (en) 1993-10-20 1994-10-19 Thermal insulation device and insulating element for the shaft of a thermal roller

Country Status (5)

Country Link
JP (1) JPH0835517A (en)
AT (1) AT297U1 (en)
DE (1) DE9416865U1 (en)
FI (1) FI100200B (en)
SE (1) SE512375C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112004000078T5 (en) * 2003-09-09 2006-07-20 Metso Paper, Inc. Thermowalzenendabschnitt
DE102014224445A1 (en) 2014-11-28 2016-06-02 Schmidt + Clemens Gmbh & Co. Kg Uncooled oven roll, and method of making an uncooled oven roll
WO2023138712A1 (en) * 2022-01-18 2023-07-27 Matthews International Corporation Temperature-controllable calender roller for manufacturing an electrode track using the dry electrode process

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU781486A1 (en) * 1978-07-18 1980-11-23 За витель Method of producing vacuum for heat insulation of "tube-in-tube"-type pipelines
DE3426641A1 (en) * 1984-07-19 1986-01-23 kabelmetal electro GmbH, 3000 Hannover Method of re-evacuating vacuum-insulated concentric pipelines
GB2194015A (en) * 1986-07-10 1988-02-24 Martin Roy Thomas Page Vacuum insulated pipe
AT390975B (en) * 1987-06-15 1990-07-25 Andritz Ag Maschf DEVICE WITH A WORKTOP HEATED WITH A HEAT MEDIUM
DE3734524A1 (en) * 1987-10-13 1989-04-27 Voith Gmbh J M Bearing journal for a hollow roll body, especially for a drying cylinder of a paper machine

Also Published As

Publication number Publication date
JPH0835517A (en) 1996-02-06
DE9416865U1 (en) 1995-01-26
FI934635A0 (en) 1993-10-20
SE9403564L (en) 1995-04-21
FI100200B (en) 1997-10-15
SE512375C2 (en) 2000-03-06
AT297U1 (en) 1995-07-25
FI934635A (en) 1995-04-21

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Legal Events

Date Code Title Description
NUG Patent has lapsed