EP0090518B1 - Module d'isolation thermique - Google Patents

Module d'isolation thermique Download PDF

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Publication number
EP0090518B1
EP0090518B1 EP83301228A EP83301228A EP0090518B1 EP 0090518 B1 EP0090518 B1 EP 0090518B1 EP 83301228 A EP83301228 A EP 83301228A EP 83301228 A EP83301228 A EP 83301228A EP 0090518 B1 EP0090518 B1 EP 0090518B1
Authority
EP
European Patent Office
Prior art keywords
strips
block
retaining means
thermally insulating
under compression
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.)
Expired
Application number
EP83301228A
Other languages
German (de)
English (en)
Other versions
EP0090518A1 (fr
Inventor
Melvyn Alan Watkins
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.)
FUEL CONSERVATION SERVICES Ltd
Original Assignee
FUEL CONSERVATION SERVICES Ltd
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 FUEL CONSERVATION SERVICES Ltd filed Critical FUEL CONSERVATION SERVICES Ltd
Priority to AT83301228T priority Critical patent/ATE20496T1/de
Publication of EP0090518A1 publication Critical patent/EP0090518A1/fr
Application granted granted Critical
Publication of EP0090518B1 publication Critical patent/EP0090518B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • F27D1/0009—Comprising ceramic fibre elements
    • F27D1/0013—Comprising ceramic fibre elements the fibre elements being in the form of a folded blanket or a juxtaposition of folded blankets

Definitions

  • the retaining means is flexible, when it may be in the form of a thread or cord.
  • Such flexible thread or cord may be threaded transversely in a back and forward fashion through the compressed strips, and may also extend around the exterior of the block.
  • the retaining means may be in the form of at least one "skewer” passing transversely through the compressed and side-by-side low thermal mass strips.
  • the low thermal mass material, from which the strips are made is a refractory fibre of alumina and silica suitable for continuous exposure to operating temperatures of 1260°C (2300°F).
  • a suitable material for operating at a higher temperature of, say, 1425°C (2600°F) is a fibrous refractory material of an alumina, silica and chromia composition.
  • thermally insulating block the strips are U-shaped, thereby providing a block with one of its major surfaces corrugated and the other, planar.
  • the invention also provides a method of manufacturing a thermally insulating block comprising the steps of arranging a plurality of strips of low thermal mass material in side-by-side relationship, transversely compressing the strips together, and maintaining the so-compressed strips under compression with retaining means, extending through the interior of the block generally transversely with respect to the strips, characterised in that the retaining means is of the same material as that of the strips.
  • the steps of transversely compressing the strips and maintaining the strips under compression are performed simultaneously by passing the retaining means through the strips.
  • the steps of transversely compressing the strips and maintaining the strips under compression precede the step of truncating the corrugations.
  • thermally insulating blocks in accordance with the invention or when made by a method in accordance therewith, can be secured to the inner surfaces of, say, a furnace, by cementing one of the major surfaces thereof and then pressing this surface against the furnace wall in the required position.
  • the corrugated block having U-shaped strips it is the planar major surface which is preferably secured to the internal surface of the furnace wall.
  • thermally insulating block in accordance with the invention as well as its inventive method of manufacture, will now be described by way of example and with reference to the accompanying drawing which shows a perspective view of the block.
  • a scrim cloth of the same material as that from which the strips 2 are made is wrapped around the block, preferably leaving the opposed end faces of the U-shaped strips 2 exposed. Such wrapping can be adhesively secured to the block 1.
  • a single layer of low thermal mass material such as either of those described above and capable of withstanding respective operating temperatures of 1260°C (2300°F) and 1425°C (2600°F)
  • 1260°C (2300°F) and 1425°C (2600°F) has been folded to form an intermediate corrugated block.
  • One major face of the intermediate block has then had its corrugations truncated, thereby forming the plurality of side-by-side, generally U-shaped strips 2 which are subsequently subjected to a transverse compressional force.
  • this truncation step may follow the compression and retaining steps.
  • the thread 3 passes transversely through the strips 2 and is secured in a suitable manner to maintain the block 1 under compression.
  • Such a block 1 could also be made by forming two or more intermediate blocks, of equal thickness, which may then be secured together in side-by-side relationship under compression.
  • each block 1 can then be fixed to the internal surface of a furnace wall by cementing the planar, truncated face thereto.
  • the transversely compressing and maintaining under compression steps can be formed simultaneously, and preferably when the retaining means is in the form of a flexible thread or cord passing transversely through the side-by-side strips, whereby tightening or tensioning of the thread or cord 3 actually compresses the strips together and, then, subsequently retains them in the compressed state.

Claims (13)

1. Bloc d'isolation thermique (1) pour le revêtement de plafonds, parois, sols, portes et conduits dans des fourneaux, étuves, fours ou constructions analogues, comprenant des bandes (2) d'un matériau à faible masse thermique, qui sont fixées ensemble, sous compression et en étant placées côte à côte, par un moyen d'assemblage (3) qui s'étend au travers de l'intérieur du bloc (1), suivant une direction générale transversale aux bandes (2), caractérisé en ce que le moyen d'assemblage (3) est du même matériau que les bandes (2).
2. Bloc d'isolation thermique (1) selon la revendication 1, dans lequel le moyen d'assemblage (3) est formé par un fil ou une corde flexible.
3. Bloc d'isolation thermique (1) selon la revendication 1 ou 2, dans lequel les bandes (2) sont faites d'un matériau réfractaire fibreux contenant de l'alumine et de la silice.
4. Bloc d'isolation thermique (1) selon la revendication 3, dans lequel le matériau réfractaire fibreux contient également du sesquioxyde de chrome.
5. Bloc d'isolation thermique (1) selon l'une quelconque des revendications précédentes, dans lequel les bandes (2) possèdent une section droite de forme générale en U, de sorte qu'une grande face du bloc est ondulée, et l'autre grande face du bloc (1) est plane.
6. Bloc d'isolation thermique selon l'une quelconque des revendications précédentes, destiné à faire partie d'un revêtement d'un fourneau, d'une étuve, d'un four ou d'une construction analogue.
7. Procédé pour fabriquer un bloc d'isolation thermique (1), comprenant la disposition côte à côte de bandes (2) d'un matériau à faible masse thermique, la compression transversale conjointe des bandes (2) et le maintien des bandes (2) ainsi comprimées à l'état comprimé par un moyen d'assemblage (3) s'étendant au travers de l'intérieur du bloc (1), suivant une direction générale transversale aux bandes (2), caractérisé en ce que le moyen d'assemblage (3) est du même matériau que les bandes (2).
8. Procédé selon la revendication 7, dans lequel le moyen d'assemblage (3) est un fil ou une corde flexible.
9. Procédé selon la revendication 7 ou 8, dans l.equel les bandes (2) sont faites d'un matériau réfractaire fibreux contenant de l'alumine ou de la silice.
10. Procédé selon la revendication 9, dans lequel le matériau réfractaire fibreux contient également du sesquioxyde de chrome.
11. Procédé selon l'une quelconque des revendications 7 à 10, dans lequel la compression transversale des bandes (2) et le maintien des bandes sous compression sont effectués simultanément en passant le moyen d'assemblage (3) au-travers des bandes (2).
12. Procédé selon l'une quelconque des revendications 7 à 11, dans lequel le bloc (1) est formé en pliant en accordéon une couche de matériau à faible masse thermique, de manière à former des ondulations, puis en tronçonnant la couche ainsi pliée pour enlever les ondulations sur au moins une grande face du bloc et pourformer les bandes (2) placées côte à côte.
13. Procédé selon la revendication 11, dans lequel la compression transversale des bandes (2) et le maintien des bandes sous compression précèdent le tronçonnage.
EP83301228A 1982-03-27 1983-03-08 Module d'isolation thermique Expired EP0090518B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83301228T ATE20496T1 (de) 1982-03-27 1983-03-08 Waermeisolierungsmodul.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8209080 1982-03-27
GB8209080 1982-03-27

Publications (2)

Publication Number Publication Date
EP0090518A1 EP0090518A1 (fr) 1983-10-05
EP0090518B1 true EP0090518B1 (fr) 1986-06-18

Family

ID=10529341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83301228A Expired EP0090518B1 (fr) 1982-03-27 1983-03-08 Module d'isolation thermique

Country Status (4)

Country Link
EP (1) EP0090518B1 (fr)
AT (1) ATE20496T1 (fr)
DE (1) DE3364133D1 (fr)
GB (1) GB2117877B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190167B (en) * 1986-05-09 1990-05-09 Thomas James Twort Furnace pipe insulation
DE4119990A1 (de) * 1991-06-18 1992-12-24 Forsch Anorganische Werkstoffe Verbundplatte

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018677A1 (fr) * 1979-04-13 1980-11-12 Heattreatment Advising Company N.V. Parois de four comprenant des panneaux de fibres céramiques

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1038498A (en) * 1963-08-13 1966-08-10 Steetley Refractory Brick Comp Improvements in or relating to refractory units for use in lining metallurgical furnaces
US3819468A (en) * 1971-06-28 1974-06-25 Sander Ind Inc High temperature insulation module
US3832815A (en) * 1973-01-29 1974-09-03 Flinn & Dreffein Eng Co Modular insulation of fibrous material
GB1545842A (en) * 1976-03-17 1979-05-16 Johns Manville Furnace lining apparatus
GB2004039B (en) * 1977-05-13 1982-01-20 Clinotherm Ltd Furnaces and ovens
GB2004626B (en) * 1977-09-22 1982-05-06 Studweldpro Uk Ltd Insulation materials
GB2070748A (en) * 1980-03-04 1981-09-09 Ductile Hot Mill Ltd Panel for a furnace wall structure
US4339902A (en) * 1980-06-30 1982-07-20 Manville Service Corporation Multiple layer thermal insulation device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018677A1 (fr) * 1979-04-13 1980-11-12 Heattreatment Advising Company N.V. Parois de four comprenant des panneaux de fibres céramiques

Also Published As

Publication number Publication date
GB2117877B (en) 1985-05-09
DE3364133D1 (en) 1986-07-24
ATE20496T1 (de) 1986-07-15
GB2117877A (en) 1983-10-19
EP0090518A1 (fr) 1983-10-05
GB8302934D0 (en) 1983-03-09

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