IT1149611B - Raffreddatore di gas di sintesi e caldaia a recupero del calore perduto - Google Patents

Raffreddatore di gas di sintesi e caldaia a recupero del calore perduto

Info

Publication number
IT1149611B
IT1149611B IT19590/82A IT1959082A IT1149611B IT 1149611 B IT1149611 B IT 1149611B IT 19590/82 A IT19590/82 A IT 19590/82A IT 1959082 A IT1959082 A IT 1959082A IT 1149611 B IT1149611 B IT 1149611B
Authority
IT
Italy
Prior art keywords
heat recovery
synthesis gas
gas cooler
recovery boiler
boiler
Prior art date
Application number
IT19590/82A
Other languages
English (en)
Other versions
IT8219590A0 (it
Inventor
Wolfgang Koog
Frank Edward Guptill
Original Assignee
Texaco Development Corp
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 Texaco Development Corp filed Critical Texaco Development Corp
Publication of IT8219590A0 publication Critical patent/IT8219590A0/it
Application granted granted Critical
Publication of IT1149611B publication Critical patent/IT1149611B/it

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00Non-rotary, e.g. reciprocated, appliances
    • F28G1/16Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72Other features
    • C10J3/86Other features combined with waste-heat boilers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00Methods of steam generation characterised by form of heating method
    • F22B1/02Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18Methods 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
    • F22B1/1838Methods 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
    • F22B1/1846Methods 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B21/00Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
    • F22B21/02Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from substantially straight water tubes
    • F22B21/04Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from substantially straight water tubes involving a single upper drum and a single lower drum, e.g. the drums being arranged transversely
    • F22B21/06Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from substantially straight water tubes involving a single upper drum and a single lower drum, e.g. the drums being arranged transversely the water tubes being arranged annularly in sets, e.g. in abutting connection with drums of annular shape
    • F22B21/065Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from substantially straight water tubes involving a single upper drum and a single lower drum, e.g. the drums being arranged transversely the water tubes being arranged annularly in sets, e.g. in abutting connection with drums of annular shape involving an upper and lower drum of annular shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/06Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001Recuperative heat exchangers
    • F28D21/0012Recuperative heat exchangers the heat being recuperated from waste water or from condensates
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00Details of gasification processes
    • C10J2300/16Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1603Integration of gasification processes with another plant or parts within the plant with gas treatment
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00Details of gasification processes
    • C10J2300/18Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1861Heat exchange between at least two process streams
    • C10J2300/1884Heat exchange between at least two process streams with one stream being synthesis gas
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00Details of gasification processes
    • C10J2300/18Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1861Heat exchange between at least two process streams
    • C10J2300/1892Heat exchange between at least two process streams with one stream being water/steam
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0075Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for syngas or cracked gas cooling systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
IT19590/82A 1981-02-12 1982-02-10 Raffreddatore di gas di sintesi e caldaia a recupero del calore perduto IT1149611B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/233,752 US4377132A (en) 1981-02-12 1981-02-12 Synthesis gas cooler and waste heat boiler

Publications (2)

Publication Number Publication Date
IT8219590A0 IT8219590A0 (it) 1982-02-10
IT1149611B true IT1149611B (it) 1986-12-03

Family

ID=22878551

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19590/82A IT1149611B (it) 1981-02-12 1982-02-10 Raffreddatore di gas di sintesi e caldaia a recupero del calore perduto

Country Status (14)

Country Link
US (1) US4377132A (it)
JP (2) JPS57150791A (it)
KR (1) KR880000048B1 (it)
AU (1) AU546321B2 (it)
BE (1) BE892110A (it)
BR (1) BR8108218A (it)
CA (1) CA1168527A (it)
DE (1) DE3147864A1 (it)
ES (1) ES8400478A1 (it)
FR (1) FR2499699B1 (it)
GB (1) GB2093175B (it)
IT (1) IT1149611B (it)
SE (1) SE454992B (it)
ZA (1) ZA82159B (it)

Families Citing this family (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH656637A5 (de) * 1981-10-26 1986-07-15 Sulzer Ag Gaskuehler-anordnung zu kohlevergasungsanlage.
NL187177C (nl) * 1982-07-12 1991-06-17 Stork Ketel & App Vertikale stralingsketel.
US4479809A (en) * 1982-12-13 1984-10-30 Texaco Inc. Apparatus for gasifying coal including a slag trap
CH661585A5 (de) * 1983-07-07 1987-07-31 Sulzer Ag Waermeuebertrager fuer gase, vorzugsweise synthesegaskuehler.
US4545330A (en) * 1984-04-10 1985-10-08 Cool Water Coal Gasification Program Self-cleaning liner
US4520760A (en) * 1984-04-23 1985-06-04 Combustion Engineering, Inc. Heat exchanger outlet arrangement
DD227980A1 (de) * 1984-10-29 1985-10-02 Freiberg Brennstoffinst Apparat fuer die vergasung von kohlenstaub
US4708819A (en) * 1985-04-26 1987-11-24 Texaco Inc. Reduction of vanadium in recycle petroleum coke
US4657702A (en) * 1985-04-26 1987-04-14 Texaco Inc. Partial oxidation of petroleum coke
US4681700A (en) * 1985-04-26 1987-07-21 Texaco Inc. Partial oxidation of upgraded petroleum coke
US4650497A (en) * 1985-05-06 1987-03-17 Texaco Development Corp. Quench chamber structure for a down flow high pressure gasifier
DD252734A3 (de) * 1985-11-12 1987-12-30 Freiberg Brennstoffinst Apparat zur kohlenstaubvergasung
CH670501A5 (it) * 1986-07-02 1989-06-15 Sulzer Ag
GB8620994D0 (en) * 1986-08-29 1986-10-08 Shell Int Research Synthesis gas
DE3711314A1 (de) * 1987-04-03 1988-10-13 Babcock Werke Ag Vorrichtung zum kuehlen eines synthesegases in einem quenchkuehler
DE3737359A1 (de) * 1987-11-04 1989-05-18 Krupp Koppers Gmbh Abhitzekessel zur kuehlung von partialoxidationsrohgas
US4876987A (en) * 1988-06-27 1989-10-31 Texaco, Inc. Synthetic gas cooler with thermal protection
US4936376A (en) * 1988-06-27 1990-06-26 Texaco Inc. Synthetic gas cooler with thermal protection
DE3844347A1 (de) * 1988-12-30 1990-07-05 Krupp Koppers Gmbh Verfahren und strahlungskuehler zur strahlungskuehlung eines aus dem vergasungsreaktor austretenden produktgasmengenstromes
US4946476A (en) * 1989-08-24 1990-08-07 Texaco Inc. Partial oxidation of bituminous coal
US4948387A (en) * 1989-11-24 1990-08-14 Texaco Inc. Synthesis gas barrier and refractory support
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
US5234552A (en) * 1991-09-10 1993-08-10 Mcgrew Robert Glycol reboiler vapor condenser
DE4230124A1 (de) * 1992-09-09 1994-03-10 Babcock Energie Umwelt Vorrichtung zur Kühlung von heißen Gasen
DE4229895C2 (de) * 1992-09-11 1997-01-30 Steinmueller Gmbh L & C Vorrichtung zur Kühlung eines heißen Gases, insbesondere eines in einer Verbrennungs- bzw. Vergasungkammer durch Verbrennung von kohlenstoffhaltigem Brennstoff erzeugten heißen Nutzgases
US5271243A (en) * 1992-10-27 1993-12-21 Deutsche Babcock Energie- Und Umwelttechnik Ag Device for cooling hot gases
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
US5319924A (en) * 1993-04-27 1994-06-14 Texaco Inc. Partial oxidation power system
US6116196A (en) * 1997-02-28 2000-09-12 Miura Co., Ltd. Water-tube boiler
US6550252B2 (en) 2000-10-12 2003-04-22 Texaco Inc. Nitrogen stripping of hydrotreater condensate
TW517147B (en) * 2001-04-19 2003-01-11 Ebara Corp Waste heat boiler
JP4599291B2 (ja) * 2005-01-07 2010-12-15 三菱重工業株式会社 加圧高温ガス冷却器
US20060228284A1 (en) * 2005-04-11 2006-10-12 Schmidt Craig A Integration of gasification and ammonia production
US7931710B2 (en) * 2005-07-27 2011-04-26 Babcock & Wilcox Power Generation Group, Inc. Steam generator to contain and cool synthesis gas
ITMI20051834A1 (it) * 2005-09-30 2007-04-01 Eni Spa Scambiatore di calore
US7803216B2 (en) 2005-12-28 2010-09-28 Mitsubishi Heavy Industries, Ltd. Pressurized high-temperature gas cooler
US8828107B2 (en) 2006-01-31 2014-09-09 Linde Process Plants, Inc. Process and apparatus for synthesis gas heat exchange system
DE102006031816B4 (de) * 2006-07-07 2008-04-30 Siemens Fuel Gasification Technology Gmbh Verfahren und Vorrichtung zur Kühlung von heißen Gasen und verflüssigter Schlacke bei der Flugstromvergasung
JP2008056808A (ja) * 2006-08-31 2008-03-13 Babcock & Wilcox Co:The 合成ガスを収容及び冷却するための蒸気発生装置
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
US9051522B2 (en) 2006-12-01 2015-06-09 Shell Oil Company Gasification reactor
US7740671B2 (en) 2006-12-18 2010-06-22 Pratt & Whitney Rocketdyne, Inc. Dump cooled gasifier
US8191617B2 (en) * 2007-08-07 2012-06-05 General Electric Company Syngas cooler and cooling tube for use in a syngas cooler
CN101161792B (zh) * 2007-09-29 2010-11-17 上海惠生化工工程有限公司 一种煤气化制合成气过程的热量回收工艺方法
US7846226B2 (en) * 2008-02-13 2010-12-07 General Electric Company Apparatus for cooling and scrubbing a flow of syngas and method of assembling
DE102008022696A1 (de) * 2008-05-07 2009-11-12 Solvis Gmbh & Co. Kg Feuerungseinrichtung mit einer Reinigungseinrichtung
US8398730B2 (en) * 2008-07-23 2013-03-19 General Electric Company Method and apparatus to facilitate substitute natural gas production
US8960651B2 (en) 2008-12-04 2015-02-24 Shell Oil Company Vessel for cooling syngas
DE102009020367B4 (de) * 2009-04-27 2011-02-17 Siemens Aktiengesellschaft Abhitzedampferzeugersystem für einen Vergasungsprozess
US8769964B2 (en) * 2010-01-05 2014-07-08 General Electric Company System and method for cooling syngas produced from a gasifier
DE102012215898B4 (de) * 2012-09-07 2019-03-21 Siemens Aktiengesellschaft Vorrichtung zur zuverlässigen Füllstandsregelung in einer der Flugstromvergasung nachgeschalteten Quenchkammer mit Inertgasspülung der Druck aufnehmenden Messstelle
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
CN103013580A (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热回收装置
CN103102993B (zh) * 2013-02-20 2014-07-09 上海锅炉厂有限公司 一种非激冷防结渣辐射废热锅炉及其应用
US9109171B2 (en) * 2013-11-15 2015-08-18 General Electric Company System and method for gasification and cooling syngas
US9404054B2 (en) * 2013-12-20 2016-08-02 General Electric Company Tubular radiant syngas cooler
DE102014201890A1 (de) * 2014-02-03 2015-08-06 Siemens Aktiengesellschaft Kühlung und Waschung eines Rohgases aus der Flugstromvergasung
JP6621310B2 (ja) * 2015-11-18 2019-12-18 三菱日立パワーシステムズ株式会社 ガス化装置、制御装置、ガス化複合発電設備及び制御方法
CN106147878A (zh) * 2016-08-18 2016-11-23 安徽科达洁能股份有限公司 高温显热回收装置
CN106190326A (zh) * 2016-08-29 2016-12-07 安徽科达洁能股份有限公司 粉煤气化设备

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US946310A (en) * 1909-05-03 1910-01-11 David John Archer Hot-water furnace.
US1838511A (en) * 1927-05-11 1931-12-29 Walter C Wilson Device for cleaning air
US2538450A (en) * 1948-02-16 1951-01-16 Colon L Gardner Engine muffler
US2775958A (en) * 1953-02-24 1957-01-01 Babcock & Wilcox Co Tubular fluid heater with built-in soot blower, and method effected thereby
US3063221A (en) * 1958-12-31 1962-11-13 American Air Filter Co Dust collector apparatus
US3269366A (en) * 1964-10-20 1966-08-30 Combustion Eng Vapor generator furnace wall deslagger
FR2026997B2 (it) * 1968-12-24 1974-08-09 Oschatz Gmbh
US3529579A (en) * 1969-04-24 1970-09-22 Leon Jacques Wanson Multitubular boiler
US3951198A (en) * 1972-08-15 1976-04-20 Rose Shuffman, executrix Apparatus and method for recovering pure water from natural sources and industrial polluted waste sources
US4005999A (en) * 1975-03-03 1977-02-01 Carlson Drexel T Vapor reactor
SU689707A1 (ru) * 1977-05-13 1979-10-05 Предприятие П/Я В-8796 Устройство дл мокрой очистки газа
DE2933514B1 (de) * 1979-08-18 1980-03-27 Gutehoffnungshuette Sterkrade Vorrichtung zum Behandeln von durch Kohlevergasung erzeugtem Synthesegas
DE2933548B1 (de) * 1979-08-18 1980-03-27 Gutehoffnungshuette Sterkrade Vorrichtung zum Reinigen von durch Kohlevergasung erzeugtem Synthesegas
DE2940257C2 (de) * 1979-10-04 1984-11-08 Ruhrchemie Ag, 4200 Oberhausen Strahlungskessel für die Abkühlung eines feste und schmelzflüssige Partikel enthaltenden Gasstromes
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.

Also Published As

Publication number Publication date
DE3147864C2 (it) 1987-03-19
JPH0435681Y2 (it) 1992-08-24
FR2499699A1 (fr) 1982-08-13
ZA82159B (en) 1983-05-25
JPS6422101U (it) 1989-02-03
KR880000048B1 (ko) 1988-02-20
ES509501A0 (es) 1983-11-01
FR2499699B1 (fr) 1986-03-21
AU546321B2 (en) 1985-08-29
SE454992B (sv) 1988-06-13
JPS57150791A (en) 1982-09-17
IT8219590A0 (it) 1982-02-10
CA1168527A (en) 1984-06-05
US4377132A (en) 1983-03-22
BR8108218A (pt) 1982-10-05
GB2093175B (en) 1984-07-18
AU8032182A (en) 1982-08-19
DE3147864A1 (de) 1982-08-19
ES8400478A1 (es) 1983-11-01
GB2093175A (en) 1982-08-25
BE892110A (fr) 1982-08-11
SE8200460L (sv) 1982-08-13

Similar Documents

Publication Publication Date Title
IT1149611B (it) Raffreddatore di gas di sintesi e caldaia a recupero del calore perduto
IT1157632B (it) Scambiatore termico
IT8123336A0 (it) Scambiatore di calore integrato con la cassa statorica di una turbina a gas.
IT8221239V0 (it) Scambiatore di calore
IT1150882B (it) Generatore di vapore a ricupero di calore
IT1150385B (it) Perfezionamento negli scambiatori di calore
BR8202346A (pt) Permutador termico
IT1231912B (it) Scambiatore di calore a fascio tubiero
IT8220350A0 (it) Scambiatore di calore per il raffreddamento di gas caldi.
IT1204157B (it) Scambiatore di calore particolarmente adatto ad essere impiegato come recuperatore di calore da gas umidi
AT377605B (de) Waermetauscher
DE58904693D1 (de) Schwebegas-waermetauscher.
DK257982A (da) Varmekedel
FR2515321B1 (fr) Chaudiere a gaz
AT371924B (de) Waermetauscher
IT1191048B (it) Impainto di recupero del calore per caldaia a vapore e ad acqua calda con combustione a gas
DE8301166U1 (de) Rauchrohr-waermetauscher
IT1154584B (it) Scambiatore di calore
ATA211782A (de) Gasbeheizter hochleistungskessel
AT371923B (de) Waermetauscher
IT7822157V0 (it) Scambiatore di calore in particolare per caldaie a gas.
SE8202114L (sv) Vermevexlare for en stirling-motor
IT8132814V0 (it) Termo convettore rafra a recupero gas caldi di scarico
KR930026179U (ko) 가스보일러의 열교환장치
ATA13781A (de) Waermetauscher

Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970307