EP0131099A2 - Echangeur de chaleur pour gaz, en particulier refroidisseur de gaz de synthèse - Google Patents

Echangeur de chaleur pour gaz, en particulier refroidisseur de gaz de synthèse Download PDF

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Publication number
EP0131099A2
EP0131099A2 EP84104775A EP84104775A EP0131099A2 EP 0131099 A2 EP0131099 A2 EP 0131099A2 EP 84104775 A EP84104775 A EP 84104775A EP 84104775 A EP84104775 A EP 84104775A EP 0131099 A2 EP0131099 A2 EP 0131099A2
Authority
EP
European Patent Office
Prior art keywords
gas
heat exchanger
stage
space
passage
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
EP84104775A
Other languages
German (de)
English (en)
Other versions
EP0131099A3 (en
EP0131099B1 (fr
Inventor
Georg Ziegler
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
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 Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of EP0131099A2 publication Critical patent/EP0131099A2/fr
Publication of EP0131099A3 publication Critical patent/EP0131099A3/de
Application granted granted Critical
Publication of EP0131099B1 publication Critical patent/EP0131099B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/1838—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines the hot gas being under a high pressure, e.g. in chemical installations
    • F22B1/1846—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines the hot gas being under a high pressure, e.g. in chemical installations the hot gas being loaded with particles, e.g. waste heat boilers after a coal gasification plant
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • C10J3/52—Ash-removing devices
    • C10J3/526—Ash-removing devices for entrained flow gasifiers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/86—Other features combined with waste-heat 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
    • F28D7/005—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 for only one medium being tubes having bent portions or being assembled from bent tubes or being tubes having a toroidal 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
    • 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

Definitions

  • the invention relates to a heat exchanger for gases, preferably gas cooler for synthesis gas, consisting essentially of two vertical, coaxial gas ducts, which are formed from straight wall pipes running in the longitudinal direction of the gas ducts, welded to one another and through which a medium flows, with at least one on a first End of the heat exchanger attached first gas passage socket of the inner gas duct, with at least one second gas passage socket of the outer gas duct attached in the region of the first end, with at least one passage opening for the gas in the region of a second end of the heat exchanger, which has a central space delimited by the inner gas duct and one connects trains and having collectors for the wall pipes - the space between the two gas.
  • a heat exchanger for gases preferably gas cooler for synthesis gas, consisting essentially of two vertical, coaxial gas ducts, which are formed from straight wall pipes running in the longitudinal direction of the gas ducts, welded to one another and through which a medium flows, with at least one on a first End of the heat
  • Such a heat exchanger is known in which the inspection and maintenance of the walls of the gas flues in the intermediate space is very problematic.
  • the walls In cases in which contain sticky solids in the circulating gases, the walls must often be cleaned beforehand.
  • a very extreme example of this can be found in the cooling of synthesis gas, during which the melting temperature of the fly ash is reached, so that the fly ash is partly in a very sticky state and then adheres to the walls of the gas cooler.
  • the duration of the necessary interruptions to carry out the work mentioned depends directly on how easy or how difficult it is to access these walls.
  • at least one manhole is provided in the uppermost region of the gas cooler, through which people and / or devices and cleaning material are brought into the intermediate space and then lowered using special lifting devices.
  • the space between a synthesis gas cooler can have dimensions of, for example, 16 m in height and 60 cm in ring width.
  • the intermediate space contains an essentially horizontal and annular stage, the dimensions and shape of which roughly correspond to the cross section of the intermediate space speak that means are available through which the stage can be moved in the vertical direction along the intermediate space, and that at least one passage is present in the area between the first and the second gas passage connection piece, through which the intermediate space can be reached.
  • this solution has the additional advantage that the stage can be positioned in the optimal position with respect to the part of the interspace walls to be machined, as a result of which the best possible conditions are created at the workplace. Even in the case of repair work in which, for example, a welding machine has to be brought into the intermediate space, the solution according to the invention offers a significant improvement over the previous state.
  • stage according to claim 2 gives the possibility, if desired, to largely insulate one end of the space from the heat in the remaining part.
  • the particularly heat-sensitive part of the heat exchanger is protected from excessive heat, even during the operation of the heat exchanger.
  • This also enables an embodiment according to claim 4, which practically excludes the occurrence of gas leaks from the intermediate space.
  • the embodiment according to claim 5 leads to a particularly simple disposition of the wall pipes forming the outer throttle cable.
  • stage according to claim 6 allows the use of a part of it as a temporary fixed work place, while the other part of it serves as a means of transport between the passage and the fixed work place.
  • 1, 2 and 3 contains, in a cylindrical vertical pressure vessel 4, a hollow inner prism 2 forming a gas train and a hollow outer prism which is arranged coaxially with the inner prism and also forms a gas train.
  • the pressure vessel 4 has the main task of resisting the large pressure differences between the gas and the environment, whereas the pressure differences around the prisms 2 and 3 remain relatively small, which greatly simplifies their design and manufacture.
  • the inner prism 2 delimits a central space 100 and there is an annular space 200 between the two prisms.
  • the octagonal inner prism 2 consists of wall tubes 5 running in the longitudinal direction of the gas passages, which are welded together via webs 6 and form a gas-tight wall.
  • the likewise octagonal outer prism 3 consists of wall tubes 7 welded together via webs 8, which also form a gas-tight wall.
  • the prism 3 is also suspended by ropes 11 on eyelets 12 which are welded to the vertical wall of the pressure vessel 4.
  • the two coaxial prisms 2 and 3 are arranged rotated relative to one another by 22.5 °.
  • the outer prism 3 merges into a truncated pyramid 13, wall tubes 7 being bent outward from the truncated pyramid to the extent that the side surfaces of the truncated pyramid 13 narrow.
  • All of the wall tubes 7 finally open, ie after leaving the truncated pyramid 13, into a distributor 14, the center line of which forms an octagon running parallel to the outline of the outer prism 3.
  • At least two vertical feed pipes 15 for cooling water are connected to the distributor 14.
  • part of the wall tubes 5 is bent outwards and guided horizontally to radial planes in which they are deflected downward and then initially passed on vertically.
  • all the wall tubes 5 of the inner prism 2 run from the height plane "a” along vertical, radial, evenly distributed planes over the circumference of the synthesis gas cooler 1 in the space between the prism 2 and the truncated pyramid 13 of the prism 3 End of the inner prism 2 large through openings for the gas, which connect the central space 100 with the space 200.
  • the wall tubes 5 pierce the webs 8 between the tubes 7 of the truncated pyramid 13 and open into the distributor 14.
  • the tubes 5 are tightly welded to the webs 8.
  • the webs 6 of the inner prism 2 disappear from the height plane "a", so that the wall tubes 5 have sufficient flexibility in this area to compensate for different thermal expansions of the prisms 2 and 3.
  • the wall tubes 5 of the inner prism 2 open into a collector 16 to which at least two discharge lines 17 directed radially outwards are connected.
  • the wall tubes 7 of the outer prism 3 in turn open in their upper part into a collector 18, to which at least two radially outward discharge lines 19 are also connected.
  • Both collectors 16 and 18 have the same shape and the same circumference as the distributor 14 and run parallel to the latter, the collector 18 being located below the collector 16.
  • the upper bottom of the pressure vessel 4 is pierced in the middle by a gas inlet connector 20 of the inner prism 2.
  • a gas outlet 21 of the outer prism 3 penetrates the wall of the pressure vessel 4 in its upper region.
  • Both nozzles 20 and 21 are covered on the inside with heat-insulating material 22.
  • the pressure vessel 4 has eight manholes 23 which are evenly distributed over its circumference and which can be closed by covers 23 '(only visible in FIG. 1).
  • the intermediate space 200 is sealed gas-tight by a horizontal partition wall 24, which has eight rectangular openings 25, each lying below a manhole 23.
  • the width of each opening 25 is equal to the diameter of the associated manhole 23 and the length is twice the diameter.
  • a lid 26 is provided for each opening 25, which is connected to the partition 24 by means of hinges and with which the opening can be opened and closed.
  • a gas-tight seal of the opening 25 is achieved in the usual manner by means not shown.
  • the partition 24 and the cover 26 are corrugated and made of relatively thin sheet metal, so that they can absorb different thermal expansions of the inner prism 2 and the outer prism 3.
  • a stage 27 divided into eight segments is stationed just above the gas outlet connection 21 in the intermediate space 200.
  • Each stage segment is suspended from a rope 29 by means of a suspension structure 28.
  • Each rope 29 is guided via a first deflection roller 30 and a second deflection roller 32 to a winch 33 which is driven by an electric motor 34.
  • Each deflection roller 30 is mounted on a carrier 31 which is fastened above the manhole 23 on the inside of the pressure container 4.
  • Each deflection roller 32 with associated winch 33 and electric motor 34 is attached to a carrier 35 which is attached to the outside of the pressure vessel 4.
  • the respective supports 31 and 35 assigned to a stage segment lie approximately at the same height, specifically below the collector 16. Between the deflection rollers 30 and 32, the cable 29 runs through the manhole 23, so that when the associated cover 23 'is mounted , the rope 29 must be removed.
  • a strong round rod 37 is inserted through an eyelet 36 of the suspension structure 28, which is suspended in two opposite grooves 38 in the opening 25 without the closure of the cover 26 being impaired.
  • Each segment of the stage 27 has the shape of a pentagon with a recessed corner which is adjacent to an edge of the inner prism 2 and is guided thereon.
  • the area of each pentagon corresponds to approximately one eighth of the ring cross-section of the space 200. All eight segments together are therefore adapted to the size and shape of the cross-section of the space 200.
  • the stage segments can also have wheels with a horizontal axis of rotation running on the walls of prisms 2 and 3.
  • a layer of heat-insulating material 22 'on the underside of the stage 27 protects it and the part of the space 200 above it from the still relatively high temperature of the escaping gas (approx. 700 ° C. in normal operation).
  • the baffle 45 separates the central space 100 and the intermediate space 200 on the one hand in a gas-tight manner from the interior spaces of the pressure vessel 4 surrounding these spaces, so that pressure compensation between these spaces can be carried out in a controlled, known manner.
  • the system is shut down, cooled and the covers 23 'removed from the manholes 23.
  • the partition 24 is now accessible so that the cover 26 can be opened.
  • the ropes 29 are unwound from the winches 33, guided over the deflection rollers 32 and 30 and fastened to the suspension structures 28 of the stage segments. These are slightly raised with the help of the electric motors 34, whereupon the rods 37 are removed, so that the segments of the stage 27 are then ready for operation.
  • the manholes 23 and the openings 25 the people now climb onto the stage, the material necessary for the above-mentioned work possibly also being loaded onto the stage 27.
  • Each segment is about so large that half of it offers enough space for one man and the other half can hold tools, cleaning and repair material.
  • the weight must be distributed so that each stage segment remains roughly in balance. If the already mentioned guidance of the stage segments by means of wheels is available, the weight distribution is more independent. It is also possible to firmly connect several stage segments to one another, so that a larger working area is available, in which case the electric motors 34 of the connected segments would have to be synchronized with one another. Now the segments are descended from the stage 27 and stopped at the level most suitable for performing the work at hand. Some stage segments can also serve as funding between the stage segments serving as workplaces and the manholes 23.
  • the segments of the stage 27 are moved back to their stationing location and secured in this position again by means of the rods 37, after which the cables 29 are removed from the interior of the pressure vessel 4.
  • the openings 25 and the manholes 23 are then closed again gas-tight by means of the covers 26 and 23 ', and normal operation of the synthesis gas cooler 1 can be resumed.
  • Certain heavy impurities collect in the funnel 40 of the container 39 over time.
  • the emptying nozzle 41 is opened when the system is at a standstill and the container 39 cleaned from the inside.
  • the central space 100 can be reached through the gas inlet connector 20.
  • the pollution of the prism walls can be reduced very much if some wall tubes 5 and 7 are designed as rinsing tubes. For this purpose they are designed with a larger diameter than the other wall pipes and provided with holes that allow directed water jets to pass through. The directions of these water jets are set so that the largest possible surface of the prism walls is rinsed by the water jets. This measure indicates the additional Advantages that the cooling is improved and above all that the gas undergoes a gas wash and leaves the synthesis gas cooler with a high degree of purity.
  • support tubes can also be used, through which water flows in a known manner and thereby additionally contribute to cooling the upper space of the pressure vessel 4.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP84104775A 1983-07-07 1984-04-27 Echangeur de chaleur pour gaz, en particulier refroidisseur de gaz de synthèse Expired EP0131099B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3730/83 1983-07-07
CH3730/83A CH661585A5 (de) 1983-07-07 1983-07-07 Waermeuebertrager fuer gase, vorzugsweise synthesegaskuehler.

Publications (3)

Publication Number Publication Date
EP0131099A2 true EP0131099A2 (fr) 1985-01-16
EP0131099A3 EP0131099A3 (en) 1985-05-22
EP0131099B1 EP0131099B1 (fr) 1988-03-02

Family

ID=4262269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104775A Expired EP0131099B1 (fr) 1983-07-07 1984-04-27 Echangeur de chaleur pour gaz, en particulier refroidisseur de gaz de synthèse

Country Status (6)

Country Link
US (1) US4535727A (fr)
EP (1) EP0131099B1 (fr)
JP (1) JPS6020096A (fr)
CH (1) CH661585A5 (fr)
DE (1) DE3469559D1 (fr)
ZA (1) ZA843197B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100817958B1 (ko) * 2004-09-30 2008-03-31 가부시키가이샤 리코 반도체장치 및 그 제조방법
WO2009088610A3 (fr) * 2008-01-08 2010-08-19 General Electric Company Procédés et systèmes de régulation de la température dans un récipient

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DE3602935A1 (de) * 1986-01-31 1987-08-06 Steinmueller Gmbh L & C Verfahren zum abkuehlen von aus einem vergasungsreaktor kommenden prozessgasen und waermetauscher zur durchfuehrung des verfahrens
US4733896A (en) * 1986-03-11 1988-03-29 Harsco Corporation Lift container and method for using same
CH670501A5 (fr) * 1986-07-02 1989-06-15 Sulzer Ag
DE3742876A1 (de) * 1987-12-17 1989-06-29 Siemens Ag Verfahren und anordnung zur erneuerung eines senkrecht angeordneten dampferzeugers, insbesondere in kernkraftwerken
US5007501A (en) * 1989-09-01 1991-04-16 Baston Peter J Apparatus for facilitating the internal inspection and repair of large pressure vessels
DE4007754C2 (de) * 1990-03-12 1993-12-16 Gutehoffnungshuette Man Gaskühler zum Kühlen von staubbeladenen Gasen
US5408407A (en) * 1993-03-15 1995-04-18 Pentek, Inc. System and method for positioning a work point
US5440476A (en) * 1993-03-15 1995-08-08 Pentek, Inc. System for positioning a work point in three dimensional space
US7730816B2 (en) 2001-03-29 2010-06-08 Amada America, Inc. Press apparatus, striker control modular tool apparatus and programmable method for punching apertures into a workpiece
US6889760B2 (en) * 2002-05-03 2005-05-10 Hudson Products Corporation Heat shield
US8684070B2 (en) * 2006-08-15 2014-04-01 Babcock & Wilcox Power Generation Group, Inc. Compact radial platen arrangement for radiant syngas cooler
CN102213409A (zh) * 2011-04-02 2011-10-12 华东理工大学 一种带有调节手段的双筒体水冷壁型辐射废锅及其工业应用
CN103013577B (zh) * 2012-12-11 2014-07-02 中国东方电气集团有限公司 带烟气激冷的一体化回转状辐射预热混合式能源利用装置
CN103013582B (zh) * 2012-12-11 2014-08-27 中国东方电气集团有限公司 带烟气激冷的一体化束状辐射预热混合式能源利用装置
CN103013578A (zh) * 2012-12-11 2013-04-03 中国东方电气集团有限公司 一体化束状辐射锅炉预热锅炉混合式能源利用装置
CN103013579B (zh) * 2012-12-11 2014-08-27 中国东方电气集团有限公司 带烟气激冷的一体化束状辐射预热混合式热回收装置
CN102977931B (zh) * 2012-12-11 2014-08-27 中国东方电气集团有限公司 带烟气激冷的一体化回转状辐射预热混合式热回收装置
US9321975B2 (en) * 2013-12-06 2016-04-26 General Electric Company System and method for cooling syngas within a gasifier system
US9404054B2 (en) * 2013-12-20 2016-08-02 General Electric Company Tubular radiant syngas cooler

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US2808126A (en) * 1956-03-26 1957-10-01 Herbert W Harrer Man-lifting apparatus for silos and the like
US2966348A (en) * 1956-06-05 1960-12-27 Hofmeister Hans Furnace arrangement
US3887038A (en) * 1973-01-19 1975-06-03 Veda Inc Lift apparatus
NL186100C (nl) * 1977-11-30 1990-09-17 Hoogovens Groep Bv Ophangconstructie voor een hetewindleiding.
US4221537A (en) * 1978-08-21 1980-09-09 Andco Incorporated Hot blast stove erection process
DE2933514C2 (de) * 1979-08-18 1987-02-12 MAN Gutehoffnungshütte GmbH, 4200 Oberhausen Vorrichtung zum Behandeln von durch Kohlevergasung erzeugtem Synthesegas
DE2951153C2 (de) * 1979-12-19 1981-11-12 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Vorrichtung zum Reinigen und durch Kohlevergasung erzeugtem Synthesegas
CH653360A5 (de) * 1980-09-19 1985-12-31 Sulzer Ag Heissgaskuehler an einer kohlevergasungsanlage.
US4377132A (en) * 1981-02-12 1983-03-22 Texaco Development Corp. Synthesis gas cooler and waste heat boiler

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100817958B1 (ko) * 2004-09-30 2008-03-31 가부시키가이샤 리코 반도체장치 및 그 제조방법
WO2009088610A3 (fr) * 2008-01-08 2010-08-19 General Electric Company Procédés et systèmes de régulation de la température dans un récipient
US8752615B2 (en) 2008-01-08 2014-06-17 General Electric Company Methods and systems for controlling temperature in a vessel
US9739539B2 (en) 2008-01-08 2017-08-22 General Electric Company Methods and systems for controlling temperature in a vessel
US10619933B2 (en) 2008-01-08 2020-04-14 Air Products And Chemicals, Inc. Methods and systems for controlling temperature in a vessel

Also Published As

Publication number Publication date
JPS6020096A (ja) 1985-02-01
US4535727A (en) 1985-08-20
DE3469559D1 (en) 1988-04-07
ZA843197B (en) 1984-11-28
CH661585A5 (de) 1987-07-31
EP0131099A3 (en) 1985-05-22
EP0131099B1 (fr) 1988-03-02

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