[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

ES2527067T3 - Intercambiador de calor para el enfriamiento de gases calientes y sistema de intercambio de calor - Google Patents

Intercambiador de calor para el enfriamiento de gases calientes y sistema de intercambio de calor Download PDF

Info

Publication number
ES2527067T3
ES2527067T3 ES11802446.2T ES11802446T ES2527067T3 ES 2527067 T3 ES2527067 T3 ES 2527067T3 ES 11802446 T ES11802446 T ES 11802446T ES 2527067 T3 ES2527067 T3 ES 2527067T3
Authority
ES
Spain
Prior art keywords
tank
duct
cooling fluid
transfer line
heat exchanger
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.)
Active
Application number
ES11802446.2T
Other languages
English (en)
Inventor
Alfred Joachim Wilhelm
Luca Eugenio Basini
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.)
Eni SpA
Original Assignee
Eni SpA
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 Eni SpA filed Critical Eni SpA
Application granted granted Critical
Publication of ES2527067T3 publication Critical patent/ES2527067T3/es
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J7/00—Apparatus for generating gases
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
    • C01B3/386—Catalytic partial combustion
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/48—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents followed by reaction of water vapour with carbon monoxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/025—Processes for making hydrogen or synthesis gas containing a partial oxidation step
    • C01B2203/0261—Processes for making hydrogen or synthesis gas containing a partial oxidation step containing a catalytic partial oxidation step [CPO]
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/0283—Processes for making hydrogen or synthesis gas containing a CO-shift step, i.e. a water gas shift step
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0465—Composition of the impurity
    • C01B2203/047—Composition of the impurity the impurity being carbon monoxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/08—Methods of heating or cooling
    • C01B2203/0872—Methods of cooling
    • C01B2203/0888—Methods of cooling by evaporation of a fluid
    • C01B2203/0894—Generation of steam
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/12—Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1276—Mixing of different feed components
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/12—Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1288—Evaporation of one or more of the different feed components
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/80—Aspect of integrated processes for the production of hydrogen or synthesis gas not covered by groups C01B2203/02 - C01B2203/1695
    • C01B2203/82—Several process steps of C01B2203/02 - C01B2203/08 integrated into a single apparatus
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/10—Feedstock materials
    • C10G2300/1011—Biomass
    • 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
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P30/00—Technologies relating to oil refining and petrochemical industry
    • Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

Un intercambiador de calor para el enfriamiento de gases calientes por medio de un fluido de refrigeración, comprendiendo dicho intercambiador: - al menos un tanque orientado verticalmente que contiene un baño de fluido de refrigeración y que tiene un espacio de recogida de la fase vapor generada por encima de dicho baño de fluido de refrigeración; - al menos un conducto en espiral que da vueltas en torno al eje del tanque; - al menos una salida para la fase vapor generada en la cabecera de dicho tanque, al menos una línea de transferencia insertada en la parte inferior del tanque vertical para alimentar los gases calientes a dicho tanque, estando dicha línea de transferencia abierta por los dos extremos, de los que uno está conectado al tanque vertical y el otro está libre y por fuera de dicho tanque, siendo dicha línea de transferencia tubular y sobresaliendo lateralmente por fuera de dicho intercambiador, conteniendo dicha línea de transferencia al menos un conducto central interno que tiene una camisa exterior por la que circula un fluido de refrigeración, estando dicho conducto central interno en conexión de fluido con el citado conducto en espiral, estando el intercambiador de calor caracterizado porque comprende además al menos un elemento tubular vertical insertado en el interior de dicho tanque, abierto por los extremos y coaxial con dicho tanque y se desarrolla verticalmente a lo largo del elemento tubular insertado en el tanque vertical, y porque el conducto en espiral está insertado en dicho elemento tubular coaxial y en donde la camisa del conducto central interno comprende también un tabique para permitir la circulación interna del fluido de refrigeración, y en donde el tabique contenido en la camisa se desarrolla a través de la longitud total del conducto central interno hasta el extremo superior de dicho conducto.

Description

imagen1
imagen2
imagen3
imagen4
imagen5
imagen6

Claims (1)

  1. imagen1
    imagen2
ES11802446.2T 2010-12-29 2011-12-29 Intercambiador de calor para el enfriamiento de gases calientes y sistema de intercambio de calor Active ES2527067T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI20102445 2010-12-29
ITMI2010A002445A IT1403894B1 (it) 2010-12-29 2010-12-29 Scambiatore di calore per il raffreddamento di gas caldi e sistema di scambio termico
PCT/EP2011/074201 WO2012089793A1 (en) 2010-12-29 2011-12-29 Heat exchanger for the cooling of hot gases and heat exchange system

Publications (1)

Publication Number Publication Date
ES2527067T3 true ES2527067T3 (es) 2015-01-19

Family

ID=43737097

Family Applications (1)

Application Number Title Priority Date Filing Date
ES11802446.2T Active ES2527067T3 (es) 2010-12-29 2011-12-29 Intercambiador de calor para el enfriamiento de gases calientes y sistema de intercambio de calor

Country Status (11)

Country Link
US (1) US9453684B2 (es)
EP (1) EP2659214B1 (es)
CN (1) CN103459964B (es)
CA (1) CA2824448C (es)
DK (1) DK2659214T3 (es)
ES (1) ES2527067T3 (es)
IT (1) IT1403894B1 (es)
PT (1) PT2659214E (es)
RS (1) RS53720B1 (es)
RU (1) RU2552623C2 (es)
WO (1) WO2012089793A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015197752A1 (en) * 2014-06-26 2015-12-30 Shell Internationale Research Maatschappij B.V. Apparatus and process for cooling hot gas
CN104672486B (zh) * 2014-12-15 2017-08-25 蚌埠天一锅炉制造有限公司 一种再生橡胶脱硫罐冷却装置
US11561049B2 (en) * 2020-05-05 2023-01-24 Air Products And Chemicals, Inc. Coil wound heat exchanger
RU208959U1 (ru) * 2021-07-09 2022-01-24 Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) Кожухотрубный теплообменник
CN113666478B (zh) * 2021-09-09 2022-12-02 宜兴市凯斯特环保机械有限公司 一种污水处理管路及污水处理系统

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1551526A1 (de) * 1967-06-09 1970-04-02 Schmidt Sche Heissdampfgmbh Waermeaustauscher zum Kuehlen frischer Spaltgase od.dgl.
GB1195309A (en) * 1967-11-29 1970-06-17 Idemitsu Petrochemical Co Quenching Apparatus for Use with Thermal Cracking Systems
US3866432A (en) * 1973-03-29 1975-02-18 Cryo Chem Inc Helical conveyor heat exchange system
NL7500554A (nl) * 1975-01-17 1976-07-20 Shell Int Research Warmtewisselaar en werkwijze voor het koelen van hete gassen.
US4488513A (en) 1983-08-29 1984-12-18 Texaco Development Corp. Gas cooler for production of superheated steam
US4462339A (en) 1983-08-29 1984-07-31 Texaco Development Corporation Gas cooler for production of saturated or superheated steam, or both
DE4000527A1 (de) * 1990-01-10 1991-07-11 Borsig Babcock Ag Waermetauscher zum kuehlen von heissem reaktionsgas
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
RU2047045C1 (ru) * 1993-03-02 1995-10-27 Акционерное общество открытого типа "Белгородский завод энергетического машиностроения" Поверхностный пароохладитель
MY114772A (en) * 1994-07-05 2003-01-31 Shell Int Research Apparatus for cooling hot gas
US5955037A (en) * 1996-12-31 1999-09-21 Atmi Ecosys Corporation Effluent gas stream treatment system having utility for oxidation treatment of semiconductor manufacturing effluent gases
DE19833004A1 (de) * 1998-07-22 2000-01-27 Borsig Gmbh Wärmetauscher zum Kühlen eines heißen Prozeßgases
DE602004004908T2 (de) * 2003-08-06 2007-10-31 Shell Internationale Research Maatschappij B.V. Vorrichtung und verfahren zum kühlen von heissgas
ITMI20041860A1 (it) 2004-09-30 2004-12-30 Eni Spa Apparecchiatura per nebulizzare una corrente liquida con una corrente disperdente gassosa e miscelare il prodotto nebulizzato con un'ulteriore corrente gassosa adatta in apparecchiature per effettuare ossidazioni parziali catalitiche e relativo proce
ITMI20052002A1 (it) * 2005-10-21 2007-04-22 Eni Spa Dispositivo per miscelare fluidi inserito o combinato ad un reattore
US7587995B2 (en) * 2005-11-03 2009-09-15 Babcock & Wilcox Power Generation Group, Inc. Radiant syngas cooler
WO2007116045A1 (en) * 2006-04-12 2007-10-18 Shell Internationale Research Maatschappij B.V. Apparatus and process for cooling hot gas
US7552701B2 (en) * 2006-05-16 2009-06-30 Shell Oil Company Boiler for making super heated steam and its use
US20070295018A1 (en) * 2006-06-27 2007-12-27 Williams Clifford C Controlled flow heat extraction and recovery apparatus, method and system
US9051522B2 (en) * 2006-12-01 2015-06-09 Shell Oil Company Gasification reactor
US8052864B2 (en) * 2006-12-01 2011-11-08 Shell Oil Company Process to prepare a sweet crude
US7832364B2 (en) * 2006-12-14 2010-11-16 Texaco Inc. Heat transfer unit for steam generation and gas preheating

Also Published As

Publication number Publication date
WO2012089793A1 (en) 2012-07-05
RU2552623C2 (ru) 2015-06-10
CN103459964A (zh) 2013-12-18
US9453684B2 (en) 2016-09-27
CN103459964B (zh) 2016-02-24
IT1403894B1 (it) 2013-11-08
EP2659214A1 (en) 2013-11-06
RS53720B1 (en) 2015-04-30
RU2013135413A (ru) 2015-02-10
EP2659214B1 (en) 2014-11-12
CA2824448C (en) 2018-12-18
PT2659214E (pt) 2015-02-03
CA2824448A1 (en) 2012-07-05
US20130313482A1 (en) 2013-11-28
DK2659214T3 (da) 2015-02-02
ITMI20102445A1 (it) 2012-06-30

Similar Documents

Publication Publication Date Title
ES2527067T3 (es) Intercambiador de calor para el enfriamiento de gases calientes y sistema de intercambio de calor
ES2562612T3 (es) Intercambiador de calor
ES2459241B1 (es) Sistema de almacenamiento térmico y su procedimiento de carga y descarga
AR102873A1 (es) Sistema de evacuación pasiva del calor del volumen interno del recinto de contención
US10365044B2 (en) Heat exchanger and gas turbine plant provided therewith
RU2014127153A (ru) Терморегулируемые несущие поверхности для гибких настенных систем одноразового использования
ES2450791B1 (es) Intercambiador de calor para gases, en especial de los gases de escape de un motor
JP2014228252A5 (es)
RU2011150830A (ru) Выпускной узел для пара для использования в подошве парового утюга
AR056419A1 (es) Intercambiador de calor con deflector interno y una derivacion externa para el deflector
CN104219934A (zh) 一种设备
BR112016024781A2 (pt) trocador de calor para refrigerar um fluido em um sistema de refrigeração, sistema de refrigeração, e método de refrigeração de um fluido
ES2637827T3 (es) Pieza de conexión modular
EA201990323A1 (ru) Теплообменник "входящий/выходящий поток"
BR112014019771A8 (pt) Pistão com galeria de resfriamento aperfeiçoada
RU2016132134A (ru) Подача и извлечение трубных потоков при промежуточной температуре в змеевиковых теплообменниках
ES2526927T3 (es) Un intercambiador de calor mejorado con tubos concéntricos
BR112015005544A2 (pt) forno de ar quente e método para trocar energia térmica de um primeiro fluido para um segundo fluido
RU2019126274A (ru) Теплообменник для резкого охлаждения реакционного газа
JP5770959B1 (ja) 熱交換器
ES2656112T3 (es) Intercambiador de calor de caldera mejorada
ES2481190B1 (es) Unidad de intercambio térmico autobombeante
CN104364601A (zh) 垂直相交插入式暖气用导热管
ES2579833T3 (es) Intercambiador de calor para una instalación de calefacción o un sistema de suministro de calor
KR20170119356A (ko) 온수기용 버퍼탱크