WO2009066260A1 - Tube sheet assembly - Google Patents

Tube sheet assembly Download PDF

Info

Publication number
WO2009066260A1
WO2009066260A1 PCT/IB2008/054875 IB2008054875W WO2009066260A1 WO 2009066260 A1 WO2009066260 A1 WO 2009066260A1 IB 2008054875 W IB2008054875 W IB 2008054875W WO 2009066260 A1 WO2009066260 A1 WO 2009066260A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube sheet
sheet assembly
ferrule
tube
thermal insulator
Prior art date
Application number
PCT/IB2008/054875
Other languages
French (fr)
Inventor
Edgar Noel Creed
Patrick Otto Taylor
Original Assignee
The Petroleum Oil And Gas Corporation Of South Africa (Pty) 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 The Petroleum Oil And Gas Corporation Of South Africa (Pty) Ltd filed Critical The Petroleum Oil And Gas Corporation Of South Africa (Pty) Ltd
Priority to EP08852319A priority Critical patent/EP2229571B1/en
Priority to AU2008327543A priority patent/AU2008327543B2/en
Priority to US12/743,665 priority patent/US8424591B2/en
Priority to AT08852319T priority patent/ATE515673T1/en
Publication of WO2009066260A1 publication Critical patent/WO2009066260A1/en
Priority to ZA2010/03225A priority patent/ZA201003225B/en

Links

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
    • F28F9/165—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using additional preformed parts, e.g. sleeves, gaskets
    • F28F9/167—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using additional preformed parts, e.g. sleeves, gaskets the parts being inserted in the heat-exchange conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • 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
    • F28F9/0229—Double end plates; Single end plates with hollow spaces
    • 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
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/185—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding with additional preformed parts
    • 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
    • F28F9/20—Arrangements of heat reflectors, e.g. separately-insertible reflecting walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0075—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for syngas or cracked gas cooling systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2270/00—Thermal insulation; Thermal decoupling

Definitions

  • ferrules are covered with an insulation material such as high alumina ceramic fibre

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Materials For Medical Uses (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

THIS invention relates to a tube sheet assembly. In particular the invention is concerned with a tube sheet assembly for a waste heat boiler employed in a chemical process plant and which makes use of metal ferrules for protecting the inlets of the exchange tubes of the tube sheet. The tube sheet assembly is characterized therein that at least one thermal insulator is located inside an inlet opening of a tube sheet of the tube sheet assembly, and covers a portion of a respective ferrule of the tube sheet assembly, thereby providing thermal insulation between the tube sheet and the ferrule.

Description

TUBE SHEET ASSEMBLY
BACKGROUND TO THE INVENTION
THIS invention relates to a tube sheet assembly In particular the invention is concerned with a tube sheet assembly for a waste heat boiler employed in a chemical process plant and which makes use of metal ferrules for protecting the inlets of the exchange tubes of the tube sheet
Various types of chemical process plants employ heat exchangers or waste heat boilers for heat recovery and cooling One example of a chemical process employing a waste heat boiler is a reforming process in which light hydrocarbons are converted into a gas mixture comprising carbon monoxide and hydrogen In the reforming process the mixture of carbon monoxide and hydrogen is called synthesis gas or syngas As the syngas is formed at high process temperatures it is necessary to dissipate large amounts of heat This is often achieved with the use of waste heat boilers
A waste heat boiler typically includes an inlet chamber into which a hot syngas stream can be fed from a transfer line From the inlet chamber the syngas passes through exchange tubes extending between an inlet tube sheet and an outlet tube sheet The exchange tubes are surrounded by circulating water such that the syngas is cooled as it passes along the exchanges tubes The cooled syngas feeds into an outlet chamber from where it may be fed for further processing or can be subjected to another cooling cycle in a secondary heat recovery system operated in series with the waste heat boiler
Due to the fact that the syngas entering the inlet chamber of the waste heat boiler will have a very high temperature, all components in contact with the syngas must be protected with thermal insulation Accordingly the transfer line, inlet chamber and inlet tube sheet are provided with insulating lining, typically in the form of refractory lining AII parts adjacent the joints between the inlet tube sheet and the exchange tubes are subjected to very severe conditions due to the fact that at these positions the syngas stream at its maximum temperature will be in contact with the inner surface of the exchange tubes For this reason it is conventional practice to protect these parts with tube inserts, also known as ferrules Generally the ferrules will be inserted into a tube sheet whereafter an insulation layer will be installed around the ferrules as well as on front of the tubesheet in order to provide insulation
A problem often encountered with tube sheets is so-called metal dusting which refers to the catastrophic degradation of metals in carbonaceous gases, usually in operating temperatures of between 45O0C and 75O0C These high temperatures of tube sheets are of course a result of the high temperatures of the syngas passing therethrough en route to the exchange tubes
Various solutions have in the past been proposed for addressing the problems associated with metal dusting of tube sheets These solutions include providing dual layers of refractory castables having different thermal coefficients, installing felt washers between the refractory castable and the tube sheets, providing all ceramic ferrules as well as to provide ceramic ferrules with inner ceramic sleeves lined with fibre
It is an object of the invention to provide an alternative tube sheet assembly for addressing the problem of metal dusting encountered with conventional tube sheet assemblies
SUMMARY OF THE INVENTION
According to the present invention there is provided a tube sheet assembly which can be used in a waste heat boiler of a chemical process plant, the tube sheet assembly comprising a tube sheet for holding a plurality of exchange tubes, the tube sheet also defining a plurality of inlet openings through which a process fluid can pass from an inlet chamber of the waste heat boiler to the exchange tubes to undergo a cooling cycle, the tube sheet assembly including a plurality of ferrules which each extend through an inlet opening into a respective exchange tube, the tube sheet assembly being characterised in that at least one thermal insulator is at least partially located inside an inlet opening of the tube sheet for covering a portion of a respective ferrule thereby providing thermal insulation between the tube sheet and the ferrule
Preferably the tube sheet assembly comprises a plurality of thermal insulators for providing thermal insulation between the tube sheet and a plurality of ferrules conveying hot process fluid to the exchange tubes
More preferably the plurality of thermal insulators are secured in position inside the inlet openings with the use of insulation refractory
Advantageously the thermal insulator is produced from a ceramic material
Preferably, the thermal insulator is in the form of a sleeve having a bore for receiving a ferrule theretrough
An annular flange may extend radially outwardly from a first end of the sleeve
Typically the ferrules are covered with an insulation material such as high alumina ceramic fibre
Preferably the insulation material on the ferrules is covered with a waterproof material
According to a second aspect of the invention there is provided a tube sheet assembly which can be used in a waste heat boiler of a chemical process plant, the tube sheet assembly comprising a tube sheet for holding a plurality of exchange tubes through which a process fluid can pass from -A-
an inlet chamber of the waste heat boiler to undergo a cooling cycle, the tube sheet assembly including a plurality of ferrules which each extend into a respective exchange tube, the tube sheet assembly characterised therein that at least a portion of a ferrule is covered by insulation material, thereby providing thermal insulation between the tube sheet and the ferrule
The invention also extends to a method of regulating the surface temperature of a tube sheet of a waster heat boiler
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described in more detail, by way of example only, with reference to the accompanying drawings wherein
Figure 1 shows a diagrammatic representation of a waste heat boiler including a tube sheet assembly in accordance with the present invention,
Figure 2 shows an enlarged cross-sectional view of a portion of the tube sheet assembly of the invention,
Figure 3 shows a cross-sectional view of a thermal insulator for use in the thermal assembly of Figure 2,
Figure 4 shows an enlarged cross-sectional view of a further embodiment of the tube sheet in accordance with the invention, and
Figure 5 shows the results of a thermal analysis done on the tube sheet assembly in accordance with the invention DESCRIPTION OF THE ILLUSTRATED EMBODIMENT
Figure 1 shows a diagrammatic representation of a waste heat boiler, generally indicated with the reference numeral 10 The waste heat boiler 10 includes an inlet chamber 12 for providing fluid communication between an inlet tube sheet 14 and a transfer line 16 which can convey hot syngas A plurality of heat exchange tubes 18 extend between the inlet tube sheet 14 and an outlet tube sheet 20 The outlet tube sheet 20 in turn is in fluid communication with an outlet chamber 22 In use the exchange tubes 18 will be surrounded with cooling water which will circulate inside a shell 24
In use hot syngas emanating from a chemical process will be fed into the inlet chamber 12 of the waste heat boiler via the transfer line 16 From the inlet chamber 12 the syngas will pass through the inlet tube sheet 14 and into the exchange tubes 18 While passing through the exchange tubes 18 the syngas will be cooled under the influence of the cooling water circulating in the shell 24 Finally, the cooled syngas will exit the exchange tubes 18 at the outlet tube sheet 20 and feed into the outlet chamber 22 From the outlet chamber 22 the syngas can either undergo a further processing cycle or can be subjected to a further cooling process
Figure 2 shows an enlarged view of a portion of the inlet tube sheet 14 of a tube sheet assembly in accordance with the present invention, generally indicated with the reference numeral 26 The tube sheet 14 defines an inlet opening 28 through which syngas can pass from the inlet chamber 12 to an exchange tube 18 1 In order to protect the portions of the tube sheet 14 defining the inlet opening 28 against the thermal effects of the hot syngas being fed to the exchange tube 18 1 a metal ferrule 30 is provided The ferrule 30 is shaped as shown and extends from the inlet chamber 12 into a front portion of the exchange tube 18 1
The object of the invention is to ensure that the surface temperature of the inlet tube sheet 14 is not allowed to move into the metal dusting range, which is typically between 45O0C and 75O0C, thereby to avoid the unwanted effects associated with metal dusting The invention proposes to address this objective by providing a thermal insulator 32 which can provide a thermal barrier between the inlet tube sheet 14 and the ferrule 30 In particular, the invention proposes in one embodiment that the thermal insulator 32 be sized such that at least a portion thereof can be located inside a cavity formed between the wall of the inlet tube sheet 14 which defines the inlet opening 38 and the outer surface of the ferrule 30 In use the thermal insulator 32 will serve to insulate the inlet tube sheet 14 against the thermal effects of the hot syngas being fed by the ferrule 30 into the exchange tube 18 1
It is pointed out that the thermal insulator 32 need not be confined to the cavity inside the inlet tube sheet 14, but can extend therefrom as shown in Figure 2 It is also envisaged that the thermal insulator can also be located on the face of the tubesheet only
Figure 3 provides a cross-sectional view of the thermal insulator 32 The thermal insulator 32 includes a cylindrical section 34 and a tapered section 36 A bore 38, which is suitably sized for accommodating the ferrule 30, extends from the one end of the thermal insulator 32 to the other end as shown The thermal insulator 32 is here produced from a ceramic material, but it is envisaged that the thermal insulator could also be produced from a range of materials such as graphite and alumina
Typical dimensions of the thermal insulator 32 include that it has an overall length of approximately 30mm, a diameter of approximately 50mm while the cylindrical section has a length of approximately 16 3mm The bore 38 has a diameter of approximately 30mm while the tapered section tapers at an angle of approximately 20° It will, however, be appreciated that the thermal insulator could have a range of dimensions
It is pointed out that the thermal insulator 32 could be installed into the surface of the inlet tube sheet 14 or into the contour of a tube-to-tube joint The ferrule 30 is further wrapped in an insulation material 40, here provided in the form of high alumina ceramic fibre, typically of the type sold under the trademark Saffil® The insulation material 40, in turn, is covered with waterproof tape 42
The tube sheet assembly 26 also includes a layer of refractory material 44, here having a thickness of approximately 75mm to 100mm, for insulating the inlet tube sheet 14 against the thermal effects of the hot syngas fed to the exchange tubes 18 The refractory material 44 also aids in securing the thermal insulator 32 in position
A further embodiment of the tube sheet assembly 26 is shown in figure 4 In this example the thermal insulator 32 includes an annular flange 39 extending radially outwardly from an end of the insulator 32, and in use abuts a face of the tube sheet 14
A tube sheet assembly in accordance with the above description will ensure that in use the temperature on the surface of the inlet tube sheet remain below the metal dusting range, provided the refractory installation is installed correctly One example of a thermal analysis, showing the above tendency (which has also been proven in practice), is shown in Figure 5 Zone 1-2 represents the refractory material (in this example having a thickness of 60mm), Zone 2-3 represents the thermal insulator (having a thickness of 15mm) and Zone 3-4 represents the tube sheet It is clear from the temperature distribution that the surface of the tube sheet is sufficiently below the metal dusting range, and that the thermal insulator (Zone 2-3) plays a fundamental role in achieving this goal

Claims

CLAIMS;
1 A tube sheet assembly including a tube sheet for holding a plurality of heat exchange tubes, the tube sheet having a plurality of inlet openings through which a process fluid can pass into the heat exchange tubes, the tube sheet assembly including a plurality of ferrules, each extending through an inlet opening into a respective heat exchange tube, the tube sheet assembly characterised therein that a thermal insulator is at least partially located inside an inlet opening of the tube sheet for covering a portion of a respective ferrule extending through the inlet opening, thereby providing thermal insulation between the tube sheet and the ferrule
2 The tube sheet assembly of claim 1 wherein the tube sheet forms part of a waste heat boiler used in a chemical process plant
3 The tube sheet assembly of claim 1 or claim 2 wherein the tube sheet assembly includes a plurality of thermal insulators for providing thermal insulation between the tube sheet and a plurality of ferrules conveying hot process fluid to the exchange tubes
4 The tube sheet assembly of any one of claims 1 to 3 wherein the or each thermal insulator is secured inside the inlet openings by way of a layer of refractory material abutting against an end of the thermal insulator
5 The tube sheet assembly of any one of the preceding claims wherein the thermal insulator is made of a ceramic material
6 The tube sheet assembly of any one of the preceding claims wherein the thermal insulator is in the form of a sleeve having a bore for receiving a ferrule theretrough The tube sheet assembly of claim 6 wherein an annular flange extends radially outwardly from a first end of the sleeve, and abuts an outer face of the tube sheet
The tube sheet assembly of any one of the preceding claims wherein the ferrules are covered with an insulation material such as high alumina ceramic fibre
The tube sheet assembly of claim 8 wherein the insulation material on the ferrules is covered with a waterproof material
A tube sheet assembly including a tube sheet for holding a plurality of heat exchange tubes, the tube sheet having a plurality of inlet openings through which a process fluid can pass into the heat exchange tubes, the tube sheet assembly including a plurality of ferrules, each extending through an inlet opening into a respective heat exchange tube, the tube sheet assembly characterised therein that at least a portion of a ferrule is covered by insulation material, thereby providing thermal insulation between the tube sheet and the ferrule
The tube sheet assembly of claim 10 wherein the insulation material is a high alumina ceramic fibre that is covered by a waterproof layer
The tube sheet assembly of claim 10 or 1 1 including a thermal insulator in the form of a ceramic sleeve located between the ferrule and the tube sheet, so as to thermally insulate the tube sheet against high-temperature process fluid passing conveyed through the ferrule A heat exchanger including a tube sheet assembly as claimed in any one of claims 1 to 12
PCT/IB2008/054875 2007-11-21 2008-11-20 Tube sheet assembly WO2009066260A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP08852319A EP2229571B1 (en) 2007-11-21 2008-11-20 Tube sheet assembly
AU2008327543A AU2008327543B2 (en) 2007-11-21 2008-11-20 Tube sheet assembly
US12/743,665 US8424591B2 (en) 2007-11-21 2008-11-20 Tube sheet assembly
AT08852319T ATE515673T1 (en) 2007-11-21 2008-11-20 TUBE PLATE ARRANGEMENT
ZA2010/03225A ZA201003225B (en) 2007-11-21 2010-05-07 Tube sheet assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US98950307P 2007-11-21 2007-11-21
US60/989,503 2007-11-21

Publications (1)

Publication Number Publication Date
WO2009066260A1 true WO2009066260A1 (en) 2009-05-28

Family

ID=40347939

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/054875 WO2009066260A1 (en) 2007-11-21 2008-11-20 Tube sheet assembly

Country Status (7)

Country Link
US (1) US8424591B2 (en)
EP (1) EP2229571B1 (en)
AT (1) ATE515673T1 (en)
AU (1) AU2008327543B2 (en)
ES (1) ES2368193T3 (en)
WO (1) WO2009066260A1 (en)
ZA (1) ZA201003225B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2384776A1 (en) * 2012-03-28 2012-07-12 Cognitnrg, S.L. Internal insulation for exhaust gas heat exchanger (Machine-translation by Google Translate, not legally binding)
CN103033072A (en) * 2012-12-26 2013-04-10 陕西宝成航空仪表有限责任公司 Fin tube type heat exchanger
EP2881691A1 (en) * 2013-12-09 2015-06-10 Balcke-Dürr GmbH Heat exchanger with tube sheet and inserted sleeve
WO2015173606A1 (en) * 2014-05-13 2015-11-19 Provides Metalmeccanica S.R.L. A distributor of refrigerant fluid in a heat exchanger
EP3355022A1 (en) * 2017-01-31 2018-08-01 Alfa Laval Corporate AB Apparatus and method for protecting the tube-sheet of a syngas loop boiler
US10178204B2 (en) 2014-10-27 2019-01-08 Tencent Technology (Shenzhen) Company Limited Information processing method and device
WO2021244968A1 (en) * 2020-06-01 2021-12-09 Valeo Systemes Thermiques Protective member for a manifold of a heat exchanger

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3130397A1 (en) * 2015-08-12 2017-02-15 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Reforming tube with protection part against corrosion
US20180142966A1 (en) * 2016-11-22 2018-05-24 General Electric Company Tube sheet apparatus and heat exchanger
DE102017003380A1 (en) * 2017-04-06 2018-10-11 Linde Aktiengesellschaft Heat exchanger, use of a heat exchanger and method of making a heat exchanger

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442052A (en) * 1982-04-05 1984-04-10 Monsanto Company Form for refractory-faced tube sheets
GB2266951A (en) * 1992-08-05 1993-11-17 David Bland Pierce Reducing/preventing erosion and/or corrosion in heat exchanger tubes
DE19536300C1 (en) * 1995-09-29 1997-04-03 Balcke Duerr Gmbh Heat exchanger with at least one metallic tube plate
EP0777098A2 (en) * 1995-11-28 1997-06-04 American Schack Company, Inc. Improved heat exchanger for use in high temperature applications
US7185698B1 (en) * 2004-01-22 2007-03-06 Bernert Jr Robert E Thermal shield for heat exchangers

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3592261A (en) * 1968-11-25 1971-07-13 Lummus Co Heat exchanger
US4122894A (en) * 1974-05-13 1978-10-31 British Steel Corporation Tube mounting means for a ceramic recuperator
GB1488349A (en) * 1974-11-29 1977-10-12 Haldor Topsoe As Heat exchange apparatus
EP0037243B1 (en) * 1980-03-28 1984-11-28 Peabody Encomech Limited Heat exchange apparatus
US5647432A (en) * 1996-04-10 1997-07-15 Blasch Precision Ceramics, Inc. Ceramic ferrule and ceramic ferrule refractory wall for shielding tube sheet/boiler tube assembly of heat exchanger
SE511440C2 (en) * 1997-05-28 1999-09-27 Sandvik Ab Heat exchanger with tubes hanging down in a double-walled, cooled and bellows tube plate, and tube plate for tube heat exchanger
AU4090600A (en) * 1999-06-30 2001-01-04 Rohm And Haas Company High performance heat exchangers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442052A (en) * 1982-04-05 1984-04-10 Monsanto Company Form for refractory-faced tube sheets
GB2266951A (en) * 1992-08-05 1993-11-17 David Bland Pierce Reducing/preventing erosion and/or corrosion in heat exchanger tubes
DE19536300C1 (en) * 1995-09-29 1997-04-03 Balcke Duerr Gmbh Heat exchanger with at least one metallic tube plate
EP0777098A2 (en) * 1995-11-28 1997-06-04 American Schack Company, Inc. Improved heat exchanger for use in high temperature applications
US7185698B1 (en) * 2004-01-22 2007-03-06 Bernert Jr Robert E Thermal shield for heat exchangers

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2384776A1 (en) * 2012-03-28 2012-07-12 Cognitnrg, S.L. Internal insulation for exhaust gas heat exchanger (Machine-translation by Google Translate, not legally binding)
CN103033072A (en) * 2012-12-26 2013-04-10 陕西宝成航空仪表有限责任公司 Fin tube type heat exchanger
EP2881691A1 (en) * 2013-12-09 2015-06-10 Balcke-Dürr GmbH Heat exchanger with tube sheet and inserted sleeve
EP2881692A1 (en) * 2013-12-09 2015-06-10 Balcke-Dürr GmbH Tube bundle heat exchanger in bare tube design, process gas cooler, gas turbine cooling air cooler, gas turbine or gas and steam turbine power station and method for cooling cooling air
US10006719B2 (en) 2013-12-09 2018-06-26 Balcke-Durr Gmbh Tube bundle heat exchanger having straight-tube configuration, process gas cooler, cooler for gas turbine cooling air, gas turbine or gas and steam turbine power plant, and method for the cooling of cooling air
WO2015173606A1 (en) * 2014-05-13 2015-11-19 Provides Metalmeccanica S.R.L. A distributor of refrigerant fluid in a heat exchanger
US10178204B2 (en) 2014-10-27 2019-01-08 Tencent Technology (Shenzhen) Company Limited Information processing method and device
EP3355022A1 (en) * 2017-01-31 2018-08-01 Alfa Laval Corporate AB Apparatus and method for protecting the tube-sheet of a syngas loop boiler
WO2018141556A1 (en) * 2017-01-31 2018-08-09 Alfa Laval Corporate Ab Apparatus and method for protecting the tube-sheet of a syngas loop boiler
CN110214258A (en) * 2017-01-31 2019-09-06 阿法拉伐股份有限公司 For protecting the device and method of the tube sheet of synthesic gas loop boiler
CN110214258B (en) * 2017-01-31 2021-03-26 阿法拉伐股份有限公司 Apparatus and method for protecting tube sheet of synthesis gas loop boiler
US11454461B2 (en) 2017-01-31 2022-09-27 Alfa Laval Corporate Ab Apparatus and method for protecting the tube-sheet of a syngas loop boiler
WO2021244968A1 (en) * 2020-06-01 2021-12-09 Valeo Systemes Thermiques Protective member for a manifold of a heat exchanger

Also Published As

Publication number Publication date
EP2229571B1 (en) 2011-07-06
US8424591B2 (en) 2013-04-23
AU2008327543B2 (en) 2012-05-31
ZA201003225B (en) 2012-08-29
EP2229571A1 (en) 2010-09-22
ATE515673T1 (en) 2011-07-15
AU2008327543A1 (en) 2009-05-28
US20100294470A1 (en) 2010-11-25
ES2368193T3 (en) 2011-11-15

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