EP0093612A1 - Procédé pour la fabrication d'un échangeur de chaleur tubulaire - Google Patents

Procédé pour la fabrication d'un échangeur de chaleur tubulaire Download PDF

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Publication number
EP0093612A1
EP0093612A1 EP83302479A EP83302479A EP0093612A1 EP 0093612 A1 EP0093612 A1 EP 0093612A1 EP 83302479 A EP83302479 A EP 83302479A EP 83302479 A EP83302479 A EP 83302479A EP 0093612 A1 EP0093612 A1 EP 0093612A1
Authority
EP
European Patent Office
Prior art keywords
tubes
refractory
boards
tube heat
heat exchanger
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.)
Granted
Application number
EP83302479A
Other languages
German (de)
English (en)
Other versions
EP0093612B1 (fr
Inventor
Douglas Harold Wakefield
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.)
Corning Ltd
Original Assignee
Corning 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 Corning Ltd filed Critical Corning Ltd
Publication of EP0093612A1 publication Critical patent/EP0093612A1/fr
Application granted granted Critical
Publication of EP0093612B1 publication Critical patent/EP0093612B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/162—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using bonding or sealing substances, e.g. adhesives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/006—Constructions of heat-exchange apparatus characterised by the selection of particular materials of glass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/04—Constructions of heat-exchange apparatus characterised by the selection of particular materials of ceramic; of concrete; of natural stone

Definitions

  • This invention relates to tube heat exchangers, by which is meant heat exchangers comprising a stack of tubes which are held at their respective ends in a plate, to form a unit which is seated in a housing having an inlet and an outlet for a fluid medium to travel across the stack of tubes and an inlet and an outlet for a fluid medium to pass through the tubes themselves.
  • Tube heat exchangers of the aforementioned type may either be gas/liquid heat exchangers in which liquid is passed through the tubes and a gas travels across the stack of tubes, i.e. externally of the tubes themselves, or a gas/gas heat exchanger in which a first gas passes through the tubes and a second gas travels across the stack of tubes.
  • gas/gas heat exchangers it is common practice for the tubes to be formed of a borosilicate glass which is able to withstand temperatures of up to about 500°C. In practice, however, the gases employed generally have to exist at considerably lower temperatures, generally not more than about 230°C.
  • a tube heat exchanger unit which comprises a stack of tubes which are held at their respective ends in a plate, which unit is for seating in a housing having an inlet and an outlet for a fluid medium to travel across the stack of tubes and an inlet and an . outlet for a fluid medium to pass through the tubes, the plates being formed of a fibrous refractory paste set around the tubes of said stack.
  • the tubes of the heat exchanger unit according to the invention will usually be formed of glass, more particularly borosilicate glass for which there are available appropriate fibre-containing refractory pastes which can be set therearound.
  • suitable fibre-containing refractory pastes and plates formed therefrom) which are capable of withstanding temperatures above 1000°C and which therefore enable the use of glass ceramic tubes likewise capable of withstanding such temperatures to take place so that gas/gas heat exchange can take place at temperatures of up to about 1000°C.
  • the fibre-containing refractory pastes which are commercially available are formed by mixing refractory fibres with an inorganic binder which is preferably air curing and have the ability to wet glass or glass ceramic material and the tubular heat exchanger may be produced in simple manner by holding the tubes in the required disposition in holes in preformed fibre-containing refractory boards. Pairs of these boards are disposed a suitable short distance from each other, together with removable non-wetting side walls preferably formed of or lined with polyethylene, to form a mould which may be filled with refractory paste which upon drying, and removal of the side walls, forms the respective end plates which will each be a sandwich of a composite fibre-containing refractory between a pair of fibre-containing refractory boards.
  • Refractory pastes employed in the practice of the present invention will generally contain ceramic fibres in a ceramic matrix. Such material is corrosion resistant to for example sulphurous gases such as may be present in waste gases from combustion plant. Moreover because of the composition thereof, the plates formed from the fibre-containing refractory paste will be relatively flexible about the tubes but perhaps less flexible than a silicone resin seal. Nevertheless thermal stressing is not generally a significant problem because the set paste, more especially its fibres, and the tubes which pass through the plates will have similar coefficients of expansion.
  • the operating temperature of a tube heat exchanger unit according to the invention irrespective of the material of the tubes, will depend upon the constitution of the cast fibrous refractory paste and more particularly the refractory fibre content thereof.
  • the refractory fibres contain alumina and silica as their major constituent and it is the proportion of these components which determines primarily the temperature range within which the cast pastes can be employed.
  • the cement composition may be one of the air setting ceramic fibre and inert binder based compositions commercially available in the United Kingdom under the name "Mackechnie Pre-mix".
  • a composition of such type which is commercially available has a maximum continuous working temperature of 1260°C and for this purpose contains ceramic fibres having the following composition:
  • This material is a homogeneous fibrous refractory paste which can be trowelled or hand moulded and will readily adhere to most surfaces with the exception of polyethylene film. Moulded bodies of this pre-mix will air dry to leave a product having low drying shrinkage and highly resistant to thermal shock.
  • a plurality of borosilicate glass tubes 1 arranged in a regular rectangular array are set in end tube plates 2 and 3 respectively.
  • These tube plates are a composite formed of cast fibrous refractory paste 4, namely Mackechnie Pre-mix, and preformed inner and outer refractory boards 5 and 6 respectively, as aforementioned.
  • the assembly which has been constructed is horizontally disposed as shown.
  • Refractory boards 5 are inserted into each end frame 11 and held in place by means of grid frame support 14.
  • An end plate 15A is attached to one end framework. Tubes 1 are passed through holes in the refractory boards 5 with their leading ends coming to terminate at or adjacent the end plate 15A.
  • the assembly is then tilted to an angle of approximately 45° to the horizontal with end plate 15A being at the lowermost position of the assembly.
  • Refractory paste 4 is then applied to the upperface of the refractory board 5 remote from end plate 15A.
  • refractory cement is by injection so as to cover the face of the refractory board 5 and occupy the spaces between tubes 1 completely.
  • An outer refractory board 6 is then placed over the ends of the tubes 1 so as to make contact with the thick layer of refractory paste which has been formed to form as a sandwich out of the opposed faces of which the tubes 1 project.
  • An outer grid frame 16 is fitted over the upper ends of the tubes 1, entering into engagement with recesses in the upper framework to keep the outer board 6 in position in contact with the refractory cement 4.
  • An end plate 15B is then fitted to the end of the assembly to which the outer board 6 has just been applied.
  • the assembly is then tilted through 90° so that it is again inclined at 45° to the horizontal but with the end plate 15B representing the lowest part thereof.
  • the end plate 15A is then removed to present the other end of the assembly uppermost for application of refractory cement to the other inner board 5 in a repetition of the aforementioned procedure followed by fitting of an outer refractory board and attachment of an outer grid frame.
  • the assembly is then returned to the horizontal position and is detached from the central pivot 13. Air curing of the refractory cement is then effected. This will generally take place by placing the assembly in a drying oven where it is maintained for three hours at a temperature of about 200°C. The assembly is then cooled, and all of the famework and the end plates are removed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP83302479A 1982-05-04 1983-05-03 Procédé pour la fabrication d'un échangeur de chaleur tubulaire Expired EP0093612B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8212860 1982-05-04
GB8212860 1982-05-04

Publications (2)

Publication Number Publication Date
EP0093612A1 true EP0093612A1 (fr) 1983-11-09
EP0093612B1 EP0093612B1 (fr) 1986-09-10

Family

ID=10530153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83302479A Expired EP0093612B1 (fr) 1982-05-04 1983-05-03 Procédé pour la fabrication d'un échangeur de chaleur tubulaire

Country Status (5)

Country Link
EP (1) EP0093612B1 (fr)
JP (1) JPS58213197A (fr)
AU (1) AU1419083A (fr)
DE (1) DE3365996D1 (fr)
ES (1) ES522577A0 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0941759A1 (fr) * 1998-03-12 1999-09-15 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Echangeur et son procédé de fabrication
US6712131B1 (en) 1998-03-12 2004-03-30 Nederlandse Organisatie Voor Toegepast - Natuurwetenschappelijk Onderzoek Tno Method for producing an exchanger and exchanger

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ213944A (en) * 1984-11-05 1988-02-12 Sunbeam Plastics Corp Screw-threaded closure-container assembly
DE102018001548A1 (de) * 2018-02-28 2019-08-29 Sgl Carbon Se Rohrbündelwärmeaustauscher sowie Rohrboden und Verfahren zum Abdichten desselben

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1397694A (fr) * 1964-05-29 1965-04-30 Lloyd Roach Engineering échangeur de chaleur
GB994934A (en) * 1962-01-05 1965-06-10 Corning Glass Works Ceramic heat exchanger structures
US3266129A (en) * 1961-11-03 1966-08-16 Frohlich Franklin Method of constructing heat exchangers
US3422884A (en) * 1966-12-28 1969-01-21 Baldwin Lima Hamilton Corp Condenser tube bundles
US3506249A (en) * 1969-03-03 1970-04-14 New Jersey Zinc Co Structure and method for heating corrosive fluids
DE2440535A1 (de) * 1974-08-23 1976-03-04 Qvf Glastech Gmbh Roehrenwaermeaustauscher mit elastisch abgedichteten rohren
FR2356494A1 (fr) * 1976-06-30 1978-01-27 Bretagne Atel Chantiers Echangeur de chaleur a faisceau tubulaire et procede de fabrication d'un tel echangeur
US4122894A (en) * 1974-05-13 1978-10-31 British Steel Corporation Tube mounting means for a ceramic recuperator
US4130160A (en) * 1976-09-27 1978-12-19 Gte Sylvania Incorporated Composite ceramic cellular structure and heat recuperative apparatus incorporating same
GB2022490A (en) * 1978-06-09 1979-12-19 Norton Co Joining elements of silicon carbide

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2610817A1 (de) * 1975-03-21 1976-09-30 Froehlich Air Ag Rohrwaermetauscher und verfahren zu dessen herstellung
DE2754197A1 (de) * 1977-12-06 1979-06-07 Froehlich Air Ag Rohrwaermetauscher

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266129A (en) * 1961-11-03 1966-08-16 Frohlich Franklin Method of constructing heat exchangers
GB994934A (en) * 1962-01-05 1965-06-10 Corning Glass Works Ceramic heat exchanger structures
FR1397694A (fr) * 1964-05-29 1965-04-30 Lloyd Roach Engineering échangeur de chaleur
US3422884A (en) * 1966-12-28 1969-01-21 Baldwin Lima Hamilton Corp Condenser tube bundles
US3506249A (en) * 1969-03-03 1970-04-14 New Jersey Zinc Co Structure and method for heating corrosive fluids
US4122894A (en) * 1974-05-13 1978-10-31 British Steel Corporation Tube mounting means for a ceramic recuperator
DE2440535A1 (de) * 1974-08-23 1976-03-04 Qvf Glastech Gmbh Roehrenwaermeaustauscher mit elastisch abgedichteten rohren
FR2356494A1 (fr) * 1976-06-30 1978-01-27 Bretagne Atel Chantiers Echangeur de chaleur a faisceau tubulaire et procede de fabrication d'un tel echangeur
US4130160A (en) * 1976-09-27 1978-12-19 Gte Sylvania Incorporated Composite ceramic cellular structure and heat recuperative apparatus incorporating same
GB2022490A (en) * 1978-06-09 1979-12-19 Norton Co Joining elements of silicon carbide

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0941759A1 (fr) * 1998-03-12 1999-09-15 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Echangeur et son procédé de fabrication
US6174490B1 (en) 1998-03-12 2001-01-16 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek (Tno) Method for producing an exchanger
US6712131B1 (en) 1998-03-12 2004-03-30 Nederlandse Organisatie Voor Toegepast - Natuurwetenschappelijk Onderzoek Tno Method for producing an exchanger and exchanger

Also Published As

Publication number Publication date
JPS58213197A (ja) 1983-12-12
ES8404048A1 (es) 1984-04-16
DE3365996D1 (en) 1986-10-16
AU1419083A (en) 1983-11-10
EP0093612B1 (fr) 1986-09-10
ES522577A0 (es) 1984-04-16

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