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EP0366606B1 - Refroidisseur de gaz chauds pour une installation de gazéification de charbon - Google Patents

Refroidisseur de gaz chauds pour une installation de gazéification de charbon Download PDF

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Publication number
EP0366606B1
EP0366606B1 EP89810754A EP89810754A EP0366606B1 EP 0366606 B1 EP0366606 B1 EP 0366606B1 EP 89810754 A EP89810754 A EP 89810754A EP 89810754 A EP89810754 A EP 89810754A EP 0366606 B1 EP0366606 B1 EP 0366606B1
Authority
EP
European Patent Office
Prior art keywords
pipes
gas
pressure vessel
gas outlet
cooling device
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 - Lifetime
Application number
EP89810754A
Other languages
German (de)
English (en)
Other versions
EP0366606A1 (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.)
ABB Management AG
Original Assignee
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 Gebrueder Sulzer AG filed Critical Gebrueder Sulzer AG
Publication of EP0366606A1 publication Critical patent/EP0366606A1/fr
Application granted granted Critical
Publication of EP0366606B1 publication Critical patent/EP0366606B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
    • 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
    • C10J2300/00—Details of gasification processes
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1861—Heat exchange between at least two process streams
    • C10J2300/1884—Heat exchange between at least two process streams with one stream being synthesis gas

Definitions

  • the invention relates to a hot gas cooling system for a coal gasification system with the features of the preamble of claim 1.
  • a hot gas cooling system of this type is known from US Pat. No. 4,328,007.
  • the gas outlet line penetrates the cylindrical wall of the pressure vessel of the convection cooling device with a straight section and then leads with a bent section to a channel within the pressure vessel containing the convection heating surfaces.
  • the disadvantage of this design is that the gas outlet line cannot be dismantled because the majority of it runs inside the pressure vessel.
  • the gas outlet line is not cooled, so that the upper temperature of the gas leaving the radiation cooling device is limited.
  • the invention has for its object to improve a hot gas cooling system of the type mentioned in a structurally simple manner so that the gas outlet line can be cooled and easily dismantled together with a cooling device.
  • this object is achieved by the features of the characterizing part of claim 1.
  • This design of the gas outlet line means that it is fully accessible at all times along its entire length and can be Dismantle together with the pipe body in a simple manner by loosening the flange connections. In this way, any maintenance work in the convection cooling device is made considerably easier, provided that it is carried out from above. Furthermore, because of the cooling tube body, the temperature of the gas leaving the radiation cooling device can be higher than in the gas outlet line of the known cooling system.
  • the hot gas cooling system essentially consists of a radiation cooling device 1 and a convection cooling device 2, only the upper part of which is shown.
  • the radiation cooling device 1 has a cylindrical pressure vessel 3, which is penetrated at its upper end by a gas supply channel 4, which is connected to a coal gasification reactor, not shown.
  • an insert 42 is provided in the latter, which is formed from vertical, closely adjacent tubes 50 and which surrounds a first gas duct 5 through which the hot gas flows from top to bottom.
  • the insert 42 is surrounded by a shirt 43, which is also formed from vertical tubes which are welded together in the manner of a membrane wall.
  • the shirt 43 surrounds the insert 42 at a distance, so that an annular space remains between them, through which the gas flows from bottom to top and forms a second throttle cable 6.
  • the tubes of the insert 42 and the shirt 43 are connected at their lower and upper ends to ring collectors 7 and 8, respectively.
  • a coolant e.g. Water supplied, which evaporates when flowing through the tubes and is discharged from the upper collector 8 via a line 10.
  • the tubes of the insert 42 and the shirt 43 are suspended near their upper end on a support system consisting of profile supports 11, so that they can freely expand downwards.
  • a funnel 12 which tapers downwards and penetrates the bottom of the pressure vessel 3 and which is partly filled with water and serves to collect ash and slag particles which are carried by the hot gas stream and when it is deflected from the first gas train 5 into the second gas train 6 be thrown out.
  • the convection cooling device 2 likewise has a pressure vessel 15 with a vertical axis and a plurality of cooling tube bundles 13 are arranged in the interior thereof, only one of which is shown in FIG. 1.
  • the pressure vessel 15 is closed at the top by a cover 16 which is detachably connected to the pressure vessel 15 via a flange connection 17.
  • the two adjacent pressure vessels 3 and 15 are supported in their upper area by claws 19 and 20 on a common foundation 18.
  • a radial gas outlet connection 30 is connected to the pressure vessel 3, which tapers conically and has a flange 29 at its tapered end.
  • the tubes of the shirt 43 are bent outward in the manner of a loop in such a way that they cover the inner surface of the connector and the flange.
  • the gas flow is calmed by the conical shape of the nozzle 30.
  • a connecting line 26 Connected to the flange 29 is a connecting line 26, which here has the shape of a 90 ° elbow and which is provided at both ends with a flange 27 and 28, respectively.
  • the flange 27 is detachably connected to the flange 29 by screws, not shown.
  • the flange 28 is opposite a flange 32 which is connected to the cover 16 of the Pressure vessel 15 is attached and which is also releasably connected to the flange 28 by means of several screws.
  • the flanges 27 and 29 on the one hand and 28 and 32 on the other hand are therefore at right angles to one another.
  • a line 25 guiding the gas flow which begins at the flange 27 and penetrates the cover 16 in a 90 ° bend from above and projects into the interior of the pressure vessel 15. Thanks to the detachable flange connections, the connecting line 26 can be removed from the pressure vessels 3 and 15 together with the gas guide line 25.
  • the gas guide line 25 from the flange 27 to its end projecting into the interior of the pressure vessel 15 is designed as a cooled line.
  • the line 25 consists of a number, for example sixteen, of tubes 35 bent in accordance with the course of the line, which are connected at their upper end to a ring collector 36 and at their lower end to a ring collector 37. Pipes 35 lying next to one another are welded to one another via interposed webs 38, so that they form a coherent curved body.
  • the tube 35 bent with the smallest radius of curvature is connected to a coolant supply pipe 39 which is arranged radially and penetrates the connecting line 26.
  • the ring collector 36 is divided into two spaces by two partitions, in such a way that five tubes 35 lying on the inside of the bend in FIG. 2 are connected to one space of the collector, while the other eleven tubes 35 located on the outside of the bend are connected to the second Collector room are connected.
  • the tube 35 with the largest radius of curvature has a radial coolant discharge pipe 39 ', which the Connecting line 26 penetrates. In this way, a natural circulation of the coolant results in that the coolant supplied via the pipe 39 flows downwards in the five pipes 35 on the inside of the curve and then flows upwards after collection and distribution in the collector 37 in the eleven pipes 35 on the outside of the curve, after which heated coolant is discharged via the pipe 39 '.
  • the coolant flowing in the pipe 39 divides at the junction with the pipe 35 into two partial flows, one of which flows directly into the downward section of this pipe, whereas the other partial flow flows to the ring collector 36 and is distributed there to the remaining four downpipes .
  • two coolant partial flows come together in the discharge pipe 39 ', namely an upward flowing partial flow in the pipe 35 with the largest radius of curvature and a partial flow from the other riser pipes, which reaches the pipe 39' via the upper space of the ring collector 36.
  • the ring collector 36 is connected to the flange 27 of the connecting line 26 via a compensator 40.
  • a plurality of radial support plates 41 are welded over the length of the line 25 and, in the assembled state, rest on the inner surface of the connecting line 26.
  • the penetration point of the feed pipe 39 and the discharge pipe 39 'on the connecting line 26 can be designed as a flexible, tight connection, e.g. in the form of so-called thermosleeves.
  • a tab 14 is provided between the two pressure vessels 3 and 15, which is articulated with two mutually opposite claws 19 and 20 is connected.
  • the tab 14 absorbs horizontal forces acting on the pressure vessels and thus relieves the connecting line 26 of these forces. If the distance between the pressure vessels 3 and 15 should be drawn larger than in Fig. 1, a straight pipe section can be inserted between the flanges 27 and 29, the tab 14 being dimensioned correspondingly longer. In such a case, it may be advisable to make the tab 14 hollow and to switch it into the coolant circuit which circulates in the gas guide line 25.
  • this line can also consist of a curved tube with a smooth inside and tubes flowed through with coolant on the outside thereof.
  • a smooth inside of the gas conduction line is also obtained if the line is welded together from known ⁇ tubes through which coolant flows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Claims (7)

  1. Installation de refroidissement de gaz chauds d'une installation de gazéification de charbon, comprenant un dispositif de refroidissement par rayonnement et au moins un dispositif de refroidissement par convection, le dispositif de refroidissement par rayonnement se composant d'une cuve sous pression sensiblement cylindrique dont l'axe longitudinal est vertical, d'une pièce rapportée formée de tubes et disposée coaxialement dans la cuve sous pression ainsi que d'une chemise formée de tubes et entourant la pièce rapportée, l'extrémité supérieure de la pièce rapportée communiquant avec l'installation de gazéification de charbon par un canal d'arrivée de gaz qui traverse la cuve sous pression et la pièce rapportée formant un premier parcours de gaz et l'espace annulaire compris entre la pièce rapportée et la chemise formant un second parcours de gaz qui est situé en aval dans le sens de la circulation du gaz et, par ailleurs, le dispositif de refroidissement par convection qui est monté à côté du dispositif de refroidissement par rayonnement se composant d'une cuve sous pression sensiblement cylindrique, dont l'axe longitudinal est vertical et à l'intérieur duquel sont disposés des faisceaux de tubes de refroidissement, une canalisation de sortie du gaz étant raccordée à la cuve sous pression à proximité de l'extrémité supérieure de l'espace annulaire, puis formant un coude pour pénétrer à l'intérieur de la cuve sous pression du dispositif de refroidissement par convection, caractérisée en ce que la canalisation de sortie du gaz mène du haut dans la cuve sous pression du dispositif de refroidissement par convection et elle est assemblée de manière amovible par des fixations à brides aux deux cuves sous pression, en ce que des tubes dans lesquels circule un agent réfrigérant sont disposés dans la canalisation de sortie du gaz, sont coudés de manière à épouser le contour de la canalisation de sortie du gaz et sont reliés les uns aux autres de manière à former un corps tubulaire, en ce que les tubes sont raccordés sur le côté de sortie du gaz de la canalisation de sortie de gaz à un collecteur annulaire qui est disposé à l'intérieur de la canalisation de sortie du gaz et en ce que le collecteur annulaire est subdivisé par deux cloisons en deux chambres dont l'une communique avec l'arrivée de l'agent réfrigérant et l'autre, avec l'évacuation de l'agent réfrigérant.
  2. Installation selon la revendication 1, caractérisée en ce que les tubes sont prolongés dans le sens de la circulation du gaz au-delà de l'extrémité de la canalisation de sortie de gaz et pénètrent à l'intérieur de la cuve sous pression du réfrigérant par convection.
  3. Installation selon la revendication 2, caractérisée en ce que les tubes débouchent à l'autre extrémité dans un collecteur annulaire.
  4. Installation selon l'une des revendications 1 à 3, caractérisée en ce que l'agent réfrigérant qui circule dans les tubes est le même que celui qui circule sur les autres surfaces chaudes de l'installation de refroidissement.
  5. Installation selon l'une des revendications 1 à 4, caractérisée en ce qu'une tubulure de sortie de gaz qui se rétrécit dans le sens de la circulation du gaz est prévue entre la cuve sous pression du dispositif de refroidissement par rayonnement et la canalisation de sortie du gaz.
  6. installation selon l'une des revendications 1 à 5, caractérisée en ce qu'une plaque reliant les deux cuves sous pression et dans laquelle circule un agent réfrigérant est disposée dans la région supérieure des deux cuves sous pression, mais au-dessous de la canalisation de sortie de gaz.
  7. Installation selon la revendication 1, caractérisée en ce qu'un nombre de tubes qui est plus petit que celui des tubes raccordés à la chambre du collecteur annulaire communiquant avec l'évacuation de l'agent réfrigérant est raccordé à la chambre du collecteur annulaire qui communique avec l'arrivée de l'agent réfrigérant, de sorte que l'agent réfrigérant s'écoule en circuit naturel en descendant dans le plus petit nombre de tubes et en montant dans le plus grand nombre de tubes.
EP89810754A 1988-10-26 1989-10-04 Refroidisseur de gaz chauds pour une installation de gazéification de charbon Expired - Lifetime EP0366606B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3986/88 1988-10-26
CH3986/88A CH676603A5 (fr) 1988-10-26 1988-10-26

Publications (2)

Publication Number Publication Date
EP0366606A1 EP0366606A1 (fr) 1990-05-02
EP0366606B1 true EP0366606B1 (fr) 1992-12-30

Family

ID=4267668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810754A Expired - Lifetime EP0366606B1 (fr) 1988-10-26 1989-10-04 Refroidisseur de gaz chauds pour une installation de gazéification de charbon

Country Status (8)

Country Link
US (1) US4959078A (fr)
EP (1) EP0366606B1 (fr)
JP (1) JPH02150685A (fr)
CN (1) CN1016250B (fr)
CA (1) CA1330619C (fr)
CH (1) CH676603A5 (fr)
DE (1) DE58903165D1 (fr)
ZA (1) ZA896943B (fr)

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FR2570381B1 (fr) * 1984-09-17 1987-05-15 Bp Chimie Sa Procede de polymerisation d'ethylene ou de copolymerisation d'ethylene et d'alpha-olefine en lit fluidise en presence de catalyseur a base d'oxyde de chrome
DE3844347A1 (de) * 1988-12-30 1990-07-05 Krupp Koppers Gmbh Verfahren und strahlungskuehler zur strahlungskuehlung eines aus dem vergasungsreaktor austretenden produktgasmengenstromes
US5251575A (en) * 1991-06-12 1993-10-12 Sulzer Brothers Limited Installation for cooling hot, dust-charged gas in a steam generator, and a process for operating said installation
US5547601A (en) * 1992-09-09 1996-08-20 Jnj Industries, Inc. CFC-free solvent for solvating solder flux
US5803937A (en) * 1993-01-14 1998-09-08 L. & C. Steinmuller Gmbh Method of cooling a dust-laden raw gas from the gasification of a solid carbon-containing fuel
DE19649532A1 (de) * 1996-11-29 1998-06-04 Gutehoffnungshuette Man Synthesegas-Wärmetauscher-Anlage
US7901662B2 (en) * 2005-11-01 2011-03-08 Celanese International Corporation Steam generation apparatus and method
CN101135432B (zh) * 2006-09-01 2013-04-24 巴布考克及威尔考克斯公司 用于容纳和冷却合成气体的蒸汽发生器
US7749290B2 (en) * 2007-01-19 2010-07-06 General Electric Company Methods and apparatus to facilitate cooling syngas in a gasifier
US8191617B2 (en) * 2007-08-07 2012-06-05 General Electric Company Syngas cooler and cooling tube for use in a syngas cooler
US8240366B2 (en) * 2007-08-07 2012-08-14 General Electric Company Radiant coolers and methods for assembling same
US20090230268A1 (en) * 2008-03-17 2009-09-17 Maltsev Alexandre S Camming device for anchoring to rock protrusions
US8951313B2 (en) 2012-03-28 2015-02-10 General Electric Company Gasifier cooling system with convective syngas cooler and quench chamber
DE102012009266B4 (de) * 2012-05-11 2016-12-29 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Gasabzug für einen Vergasungsreaktor

Family Cites Families (7)

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US2952975A (en) * 1957-11-15 1960-09-20 Babcock & Wilcox Co Vapor generating and superheating unit
DE2918859C2 (de) * 1979-05-10 1983-12-01 Carl Still Gmbh & Co Kg, 4350 Recklinghausen Gasgenerator zum teilweisen Vergasen von Kohle
DE2933716C2 (de) * 1979-08-21 1985-06-13 Deutsche Babcock Ag, 4200 Oberhausen Mit einer Dampferzeugungsanlage versehener Gasgenerator
CA1142911A (fr) * 1980-01-23 1983-03-15 Andrew F. Kwasnik, Jr. Echangeur de chaleur generateur de vapeur
CH656637A5 (de) * 1981-10-26 1986-07-15 Sulzer Ag Gaskuehler-anordnung zu kohlevergasungsanlage.
US4563194A (en) * 1984-04-10 1986-01-07 Cool Water Coal Gasification Program Waterwall for a twin tower gasification system
DE3615877A1 (de) * 1986-05-10 1987-11-12 Krupp Koppers Gmbh Waermetauscher fuer unter erhoehtem druck stehende gase

Also Published As

Publication number Publication date
CN1042229A (zh) 1990-05-16
CH676603A5 (fr) 1991-02-15
JPH02150685A (ja) 1990-06-08
EP0366606A1 (fr) 1990-05-02
CA1330619C (fr) 1994-07-12
CN1016250B (zh) 1992-04-15
ZA896943B (en) 1990-06-27
US4959078A (en) 1990-09-25
DE58903165D1 (de) 1993-02-11

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