EP2452146A1 - Wärmetauscher - Google Patents

Wärmetauscher

Info

Publication number
EP2452146A1
EP2452146A1 EP10731507A EP10731507A EP2452146A1 EP 2452146 A1 EP2452146 A1 EP 2452146A1 EP 10731507 A EP10731507 A EP 10731507A EP 10731507 A EP10731507 A EP 10731507A EP 2452146 A1 EP2452146 A1 EP 2452146A1
Authority
EP
European Patent Office
Prior art keywords
heat exchange
impact
impact block
exchange device
exchange surface
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
EP10731507A
Other languages
English (en)
French (fr)
Other versions
EP2452146B1 (de
Inventor
Thomas Paul Von Kossak-Glowczewski
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to EP10731507.9A priority Critical patent/EP2452146B1/de
Publication of EP2452146A1 publication Critical patent/EP2452146A1/de
Application granted granted Critical
Publication of EP2452146B1 publication Critical patent/EP2452146B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G7/00—Cleaning by vibration or pressure waves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
    • F23J3/023—Cleaning furnace tubes; Cleaning flues or chimneys cleaning the fireside of watertubes in boilers
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/028—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of at least one medium being helically coiled, the coils having a conical configuration
    • 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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators

Definitions

  • the present invention relates to a heat exchange device with at least one heat exchange surface comprising one or more parallel tubular lines and an impact area for a rapper device for cleaning the heat exchange surface.
  • Such heat exchange devices are for example used in gasification processes for the production of synthetic gas, also called syngas.
  • carbonaceous feedstock is partially oxidised in a reactor.
  • Syngas leaving the reactor typically has a temperature of 1300- 1400 0 C.
  • the hot syngas is transported to a heat
  • US 5,482,110 discloses a heat exchanger for cooling syngas from a partial combustion reactor.
  • the heat exchanger comprises nested heat exchange surfaces.
  • the heat exchange surface can be cleaned using rapping devices, or rappers, which can regularly be actuated during operation of the reactor.
  • rapping devices or rappers
  • An example of such a rapper device is disclosed in British patent application GB 2 104 614 A.
  • the rapper device impacts the heat exchange surface, the surface is accelerated to such an extent, that soot deposits and fouling are effectively removed.
  • Cleaning by rapping can be particularly effective if all tubes of one heat exchange surface are rigidly connected to form one constructive gastight unit, e.g., by constructing the heat exchange surfaces as a tube-stay-tube or fin-tube construction.
  • the impact of the rapper device causes high peak loads on the heat exchange surface, which can cause damage of the tubes and leakage of coolant.
  • a heat exchange device comprising at least one heat exchange surface, wherein the heat exchange surface comprises one or more parallel tubular lines and an impact area for a rapper device, the impact area comprising an impact block with one or more inner channels, each inner channel bridging opposite open ends of an interrupted tubular line of the heat exchange surface.
  • the impact block is integrated into the surface of the heat exchanger so that the impact block is in direct contact with the hot syngas .
  • the impact block translates the impact energy caused by a rapper device very effectively into mechanical waves through the heating surface.
  • the impact block can be made very rigid and stiff to improve the transfer of impact loads by the rapper. As a result, a very good cleaning effect can be obtained. If the force from the rapper device is not effectively transferred, then little or no cleaning is accomplished.
  • the impact block enforces the impact area of the heating surfaces, so the lifetime of the heat exchange surface can be substantially increased.
  • the inner channels can be made with the same diameter as the flow paths in the tubular lines so that the flow paths are continued via the inner channels in the impact block without substantial obstructions. This design allows for effective cooling of the impact block by allowing coolant to flow unimpeded through the impact block.
  • the heat exchange surface can for example be a cylindrical heat exchange surfaces, e.g., built of a plurality of straight or coiled tubular lines for
  • the heat exchange surface can be a flat surface built of a plurality of straight tubular lines.
  • tubular lines are coiled and one or more of the tubular lines are
  • an impact block with a flat outer surface is provided with one or more inner channels, each channel operatively connecting the opposite ends of one of the interrupted channels.
  • the inner channels in the impact block can be straight channels and have a straight longitudinal axis.
  • transitional wedged tube sections can be used.
  • the contact faces between the transitional wedged tube sections and the impact block can be made perpendicular to the flat outer surface of the impact block.
  • the transitional wedged tube section can for example be welded to the impact block, which gives a reliable and durable joint.
  • the ends of the interrupted tubular line at the impact area can be perpendicular to the longitudinal axis of the tubular lines.
  • the ends of the interrupted tubular lines, the ends of the inner channels in the impact block and the transitional wedge sections can be provided with circular rims on which the welding seam can be applied.
  • the impact block may for example embed two, three or four inner channels, or more, if so desired.
  • the impact block may for instance carry an anvil.
  • the rapper device can impact the anvil, which transfers the impact load via the impact block to the heat exchange surface.
  • the anvil can for example be a hollow cylinder having one side welded to the flat outer surface of the impact block and another side capped with a solid block.
  • the heat exchange device can comprise one or more heat exchange surfaces formed by two or more coiled tubes, wherein at the ends of the heat exchange surfaces each of the coiled tubes branches off from the
  • the heat exchange surfaces can for example be
  • the heat exchange device may comprise straight tubular lines forming one or more flat heat exchange surfaces.
  • the impact block can be positioned at one of the sides of the heat exchange surface.
  • the impact block carries an anvil plate at its lateral side forming an impact area under right angles with the heat exchange surface. This way, the rapper can impact the heat exchange surface from a lateral direction, resulting in a very effective transfer of mechanical energy.
  • Figure 1 shows a part of a heat exchange surface with an impact block of a heat exchange device according to the present invention
  • Figure 2 shows a side view of the section of
  • Figure 3A shows in plan view an impact block of the heat exchange surface of Figure 1 ;
  • Figure 3B shows the block of Figure 3A in side view
  • Figure 4A shows in front view a part of a heat exchange surface with an impact block of an alternative embodiment of a heat exchange device according to the present invention
  • Figure 4B shows the section of Figure 4A in plan view
  • Figure 5A shows in front view a part of a heat exchange surface with an impact block of a further alternative embodiment of a heat exchange device
  • Figure 5B shows the section of Figure 5A in plan view .
  • FIG. 1 shows an impact area 1 of a heat exchange device according to the present invention.
  • the heat exchange device comprises one or more cylindrical heat exchange surfaces 2 formed by a number of coiled parallel tubular lines 3.
  • the tubular lines 3 are welded together via fins 4 to form a gastight cylindrical wall.
  • Each of the tubular lines 3 are interrupted at the impact area 1.
  • Each of the interrupted lines 3 has two opposite ends 5 at the impact area 1 (see Figure 2) .
  • the impact block 6 having three straight parallel channels 7 (see Figure 3A) crossing the block 6 from one side 8 to an opposite side 9.
  • the impact block 6 is shown as a separate part in Figure 3A.
  • the open ends of the channels 7 are surrounded by circular rims 10 to enable leak tight welding joints.
  • Each channel 7 is in line with one of the interrupted tubular lines 3 and in open connection with one of the opposite ends 5 of the corresponding interrupted tubular line 3, so that coolant flows through each channel 7.
  • the channels 7 have the same cross sectional area as the tubular lines 3.
  • the block 6 has a flat outer surface 8.
  • the block 6 is connected to the ends 5 of the interrupted coiled tubes 3 via transitional wedged tube sections 11.
  • the transitional wedged tube sections 11 are tubular and have two ends 12, 13 under an angle with each other--the first end 12 being configured to engage the end 5 of an interrupted coiled line 3, while the other end 13 is configured to engage the circular rim 10 of one of the channels 7 in the impact block 6.
  • the ends 12, 13 of the transitional wedged tube sections 11 are also provided with circular rims 14 to enable leak tight welding seams.
  • connection between the ends 5 of the interrupted coiled tubes and the transitional wedged tube sections 11 can be welded to form a very reliable and durable high quality joint.
  • the flat upper surface 8 of the impact block 6 carries an anvil 15.
  • a rapper device (not shown) is arranged to impact the anvil 15, which transfers the impacted load to the heat exchange surface. Since the anvil 15 stands under right angles with the flat upper surface 8 it can be joined to the flat surface 8 of the impact block 6 by a durable weld.
  • the anvil 15 is formed by a hollow cylinder 16 capped with solid block 17.
  • the impact area 1 is located near the lower end of the heat exchange device.
  • the coiled tubes 3 have a bent section 18 branching off from the heat exchange surface.
  • the bent section 18 bends away from an adjacent coiled tube 3.
  • a reinforcement web 19 extends between the bent section 18 and the adjacent tube 3.
  • FIG 4A shows an impact area 21 of an alternative embodiment of the heat exchange device according to the present invention.
  • the heat exchange device comprises a cylindrical heat exchange surface 22 formed by a number of straight, vertically arranged parallel tubular pipe lines 23. As in the embodiment of Figure 1, the tubular pipe lines 23 are welded together via fins 24.
  • Each of the interrupted lines 23 has two opposite ends 25 at the impact area 21. These ends 25 are connected by an impact block 26 having three straight parallel channels 27 (see Fig. 4B) crossing the block 26 from one end 25 to an opposite end 25 of an interrupted tubular line 23.
  • the open ends 25 of the channels 27 are surrounded by circular rims 30 to enable leak tight welding joints.
  • Each channel 27 is in line with one of the interrupted tubular lines 23 and in open connection with one of the opposite ends 25 of the corresponding interrupted tubular line 23.
  • the channels 27 have the same cross sectional area as the tubular lines 23.
  • the block 26 has a flat outer surface 28 which carries an anvil plate 35.
  • a rapper device (not shown) is arranged to impact the anvil plate 35 in the direction indicated with arrow B (see Fig. 4B) .
  • FIG. 5A shows an impact area 41 of a further possible embodiment of the heat exchange device according to the present invention.
  • This embodiment comprises a flat heat exchange surface 42 formed by a number of straight, vertically arranged parallel tubular pipe lines 43. As in the embodiments described above, the tubular pipe lines 43 are welded together via fins 44.
  • the heat exchange device may comprise one or more of such flat heat exchange surfaces, e.g., in a parallel arrangement.
  • each channel 47 is in line with one of the interrupted tubular lines 43 and in open connection with one of the opposite ends 45 of the corresponding interrupted tubular line 43.
  • the channels 47 have the same cross sectional area as the tubular lines 43.
  • the block 46 has a flat lateral side 51, which carries an anvil plate 55 perpendicular to the heat exchange surface.
  • a rapper device (not shown) is arranged to impact the anvil plate 55 in a direction indicated by arrow C parallel to the heat exchange surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP10731507.9A 2009-07-09 2010-07-06 Wärmetauscher Active EP2452146B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10731507.9A EP2452146B1 (de) 2009-07-09 2010-07-06 Wärmetauscher

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09165014 2009-07-09
PCT/EP2010/059610 WO2011003890A1 (en) 2009-07-09 2010-07-06 Heat exchanger
EP10731507.9A EP2452146B1 (de) 2009-07-09 2010-07-06 Wärmetauscher

Publications (2)

Publication Number Publication Date
EP2452146A1 true EP2452146A1 (de) 2012-05-16
EP2452146B1 EP2452146B1 (de) 2013-04-24

Family

ID=41651345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10731507.9A Active EP2452146B1 (de) 2009-07-09 2010-07-06 Wärmetauscher

Country Status (8)

Country Link
US (1) US20120138277A1 (de)
EP (1) EP2452146B1 (de)
JP (1) JP2012533043A (de)
KR (1) KR20120042832A (de)
CN (1) CN102472592B (de)
AU (1) AU2010270298B2 (de)
WO (1) WO2011003890A1 (de)
ZA (1) ZA201109269B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015010307A1 (de) 2015-08-07 2017-02-09 Steinmüller Babcock Environment Gmbh Vorrichtung zur Einleitung von Schlagkräften in eine Heizfläche

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2983994A (en) * 1955-08-01 1961-05-16 Olin Mathieson Metal articles having hollow sections and method of making same
US2969956A (en) * 1955-12-27 1961-01-31 Licencia Talalmanyokat Pipe joint for heat exchange devices
US3417419A (en) * 1965-10-08 1968-12-24 Zaklady Energetyczne Okregu Po Device for removing slag from heating surfaces of waterwall tubes in the boiler
FI52147C (fi) * 1971-08-19 1977-06-10 Ahlstroem Oy Menetelmä ja laite höyrykattilan putkiston ulkopuolista puhdistusta va rten
DE3127734C1 (de) 1981-07-14 1983-04-21 L. & C. Steinmüller GmbH, 5270 Gummersbach Verbindungselement zum UEbertragen der Klopf- oder Schlagenergie auf in einem Druckbehaelter befindliche,zu reinigende Heiz- oder Kuehlflaechen
US4497282A (en) * 1983-11-23 1985-02-05 Neundorfer, Inc. Apparatus for deslagging steam generator tubes
US4741292A (en) * 1986-12-22 1988-05-03 The Babcock & Wilcox Company Electro-impulse rapper system for boilers
DE3725424C1 (de) * 1987-07-31 1988-07-21 Steinmueller Gmbh L & C Strahlungskuehler fuer die Abkuehlung von mit Staub beladenen Gasen
DE4324586C1 (de) * 1993-07-22 1994-11-17 Steinmueller Gmbh L & C Vorrichtung zum Abkühlen eines belagbildenden Gases
US5429077A (en) * 1994-07-15 1995-07-04 The Babcock & Wilcox Company Water hammer rapper method and apparatus
DE19810733A1 (de) * 1998-03-12 1999-09-16 Oschatz Gmbh Vorrichtung zum Reinigen einer Kesselrohrwand
JP2000035176A (ja) * 1998-07-21 2000-02-02 Misawa Hoobasu Kk 配管用継手
LU90328B1 (de) * 1998-12-16 2003-06-26 Paul Wutrh S A Kuehlplatte fuer einen Ofen zur Eisen- oder Stahlerzeugung
CN2632619Y (zh) * 2003-08-08 2004-08-11 北京恩菲科技产业集团 弹性锤击式振打装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011003890A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015010307A1 (de) 2015-08-07 2017-02-09 Steinmüller Babcock Environment Gmbh Vorrichtung zur Einleitung von Schlagkräften in eine Heizfläche
DE102015010307B4 (de) 2015-08-07 2019-01-10 Steinmüller Babcock Environment Gmbh Vorrichtung zur Einleitung von Schlagkräften in eine Heizfläche und Verfahren zum Montieren eines Ambosses

Also Published As

Publication number Publication date
US20120138277A1 (en) 2012-06-07
ZA201109269B (en) 2012-09-26
WO2011003890A1 (en) 2011-01-13
AU2010270298B2 (en) 2013-11-14
JP2012533043A (ja) 2012-12-20
CN102472592B (zh) 2015-03-25
EP2452146B1 (de) 2013-04-24
KR20120042832A (ko) 2012-05-03
AU2010270298A1 (en) 2012-01-19
CN102472592A (zh) 2012-05-23

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