EP2443398A1 - Heat recovery apparatus - Google Patents

Heat recovery apparatus

Info

Publication number
EP2443398A1
EP2443398A1 EP10726205A EP10726205A EP2443398A1 EP 2443398 A1 EP2443398 A1 EP 2443398A1 EP 10726205 A EP10726205 A EP 10726205A EP 10726205 A EP10726205 A EP 10726205A EP 2443398 A1 EP2443398 A1 EP 2443398A1
Authority
EP
European Patent Office
Prior art keywords
heat
cim
previous
conveyor
generator
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.)
Withdrawn
Application number
EP10726205A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gabriele Comodi
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.)
Strategie Srl
Original Assignee
Strategie Srl
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 Strategie Srl filed Critical Strategie Srl
Publication of EP2443398A1 publication Critical patent/EP2443398A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
    • F24H1/28—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes
    • F24H1/285—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes with the fire tubes arranged alongside the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0026—Guiding means in combustion gas channels
    • F24H9/0031—Guiding means in combustion gas channels with means for changing or adapting the path of the flue gas
    • 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
    • F28D21/0017—Flooded core heat exchangers
    • 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
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • 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
    • F28D7/16—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 arranged in parallel spaced relation
    • F28D7/163—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 arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
    • 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

  • Cogeneration is essentially based on using the heat generated by the electricity production phase of thermoelectric generators; such
  • residual energy can be used as a heat source for heating buildings or for production and industrial purposes.
  • micro cogeneration enables widespread, small- scale distributed production of electrical energy for households, the tertiary sector and small-sized industries, whose power requirements are relatively modest.
  • the thermal energy produced by the functioning of a prime mover (be it an internal combustion engine or a micro gas turbine) is partly dissipated in the external environment by radiation; while this fraction can effectively be reduced, most of the thermal energy is transferred to the combustion gases (whose temperature in fact ranges from 350 to 600 °C) discharged to the flue and to the cooling air of various engine components and auxiliary circuits.
  • Heat is not usually recovered from cooling air, essentially due to its low enthalpy and convective heat transfer coefficient, which would require exchangers endowed with large exchange surfaces, adversely affecting the cost/benefit ratio of the cogenerator. Only rarely is cooling air harnessed to heat water, generally in alternative internal combustion engines.
  • An additional object of the invention is to devise a heat recovery method characterized by high flexibility in terms of the amount of heat to be recovered.
  • a still further object of the present invention is to devise a method to integrate the heat recovery and production systems with electricity and/or mechanical power production plants.
  • FIG. 1 is a schematic perspective view of a heat generator according to the prior art
  • said generic heat sources 2 can be electrical and/or mechanical power generators, such as internal combustion engines, micro gas turbines, steam turbines, fuel cells; simpler heat sources such as low-efficiency heat generators, whose fumes can still be used to extract thermal energy; and even simpler devices such as heat exchanger batteries of cooling systems of plants such as plastic stamping or extrusion machines.
  • Hot gases Fl and F2 generated by said heat sources 2 are often insufficient in amount and/or temperature for heat recovery to be feasible and/or economical through individual recovery apparatuses.
  • a hatch 37 for inspection and maintenance, commonly found on the front of the boiler 3, is schematically drawn in figures 4a through 5c.
  • said pipes 33 intercepted by said opening 4201, therefore define the part 3201 of the heat exchanger 32 of the boiler 3 dedicated to cooling the sole combustion gases Fl of said one or multiple heat sources 2.
  • the conduit 4 is capable of connecting to a suitable number of pipes 33 belonging solely to the third fume circuit 3303, whereas, as clearly shown in figures 4b and/or 4c, the inner part 42 of the conduit 4, as a result of its rotation, can connect simultaneously to multiple pipes 33 of the third circuit 3303 and to at least one pipe 33 of the second circuit 3302.
  • the centre of the opening 4201 must be offset with respect to the centre of the fixed external part 41.
  • the inner part 42 has a first tract 4202, whose axis is parallel to the fixed outer part 41, and another tract 4203 (designed to couple through its own opening 4201 to the pipe plate 3801), whose axis is parallel to the first; the two tracts 4202 and 4203 are connected through a junction 4204.
  • the conduit 4 is completed by an interception organ 43, e.g. a butterfly valve 43, positioned in the fixed part 41, designed to exclude the heat source 2 from the boiler 3 in case of malfunction or maintenance, or in the event that the heat recovery apparatus 1 of the disclosed invention is operated as a traditional fire- tube boiler 3.
  • the conveyor 4 includes only the external part 41 (henceforth, for the sake of simplicity, the conduit 41), hermetically coupled to the inspection hatch 37 but capable of axial translation to connect to the pipes 33 of the exchanger 32 of the boiler 3 dedicated to said combustion gases Fl.
EP10726205A 2009-05-20 2010-05-18 Heat recovery apparatus Withdrawn EP2443398A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITAN2009A000023A IT1394354B1 (it) 2009-05-20 2009-05-20 Apparato di recupero calore
PCT/IB2010/001174 WO2010133951A1 (en) 2009-05-20 2010-05-18 Heat recovery apparatus

Publications (1)

Publication Number Publication Date
EP2443398A1 true EP2443398A1 (en) 2012-04-25

Family

ID=41560898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10726205A Withdrawn EP2443398A1 (en) 2009-05-20 2010-05-18 Heat recovery apparatus

Country Status (6)

Country Link
US (1) US20120067549A1 (zh)
EP (1) EP2443398A1 (zh)
CN (1) CN102439375A (zh)
IT (1) IT1394354B1 (zh)
RU (1) RU2491481C1 (zh)
WO (1) WO2010133951A1 (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2549660C1 (ru) * 2013-11-20 2015-04-27 Открытое акционерное общество "Татнефть" им. В.Д. Шашина Система и способ эксплуатации высокообводнённых участков нефтяных месторождений
CN106091386A (zh) * 2015-06-16 2016-11-09 熵零股份有限公司 流体加热器
RU2611700C1 (ru) * 2015-10-22 2017-02-28 Федеральное государственное бюджетное образовательное учреждение высшего образования "Юго-Западный государственный университет" (ЮЗГУ) Автономная тепловая пушка
US10641552B2 (en) * 2015-12-23 2020-05-05 Tesla, Inc. Heat-recovering temperature-gradient based oven system
CN105546562A (zh) * 2016-01-29 2016-05-04 上海久试电力技术有限公司 控制烟温的烟道和控制方法以及烟道的改进方法
KR101682229B1 (ko) * 2016-07-11 2016-12-02 박인규 폐기열 회수 열교환기
CN107664439B (zh) * 2017-08-30 2019-06-11 昆明理工大学 一种燃油炉窑烟气余热利用系统
CN108036394A (zh) * 2018-01-02 2018-05-15 董传勇 多功能电磁采暖炉
US11119454B2 (en) * 2018-03-30 2021-09-14 General Electric Company System and method for power generation control
CN109000272A (zh) * 2018-09-20 2018-12-14 山东路通道路材料有限公司 一种热量回收的沥青烟气处理系统及处理方法
CN111765783A (zh) * 2020-08-07 2020-10-13 东营市延旭环保科技有限公司 一种环保沼气发电用余热回收设备
CL2020002674A1 (es) * 2020-10-15 2021-01-04 Eduardo Uribe Ramos Sergio Dispositivo de intercambio de calor no presurizado de gran poder de transferencia de calor con un menor gasto energético.

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GB236352A (en) * 1924-05-29 1925-07-09 Francis Albert Garrett Improvements in steam generators
GB447789A (en) * 1935-02-07 1936-05-26 James Molyneux Improvements in and connected with electrically heated boilers for heating tar and tar bitumen compounds
DE1604087A1 (de) * 1966-06-24 1970-08-13 Weleker Friedrich Verfahren zur selbstaetigen Regelung der Waermeuebertragungsleistung gasbeheizter Geraete
US4313399A (en) * 1971-10-26 1982-02-02 Black Robert B Technique for handling viscous liquids in transit or storage
DE3241874A1 (de) * 1981-11-19 1983-06-09 H. u. W. Fritzen- GmbH & Co, 4420 Coesfeld Stahlheizkessel
DE3304455A1 (de) * 1983-02-09 1984-08-09 Abig Werke Carry Gross GmbH & Co KG, 7770 Überlingen Heizkessel
GB2271171B (en) * 1992-10-03 1996-05-08 Roger Arthur Briggs Boilers
DE4344175C2 (de) * 1993-12-23 1997-07-03 Viessmann Werke Kg Heizkessel zum Verbrennen gasförmiger oder flüssiger Brennstoffe
CN2400751Y (zh) * 1999-12-07 2000-10-11 杨世全 多用燃气节能常压锅炉
RU2229055C2 (ru) * 2001-02-07 2004-05-20 Федеральное государственное образовательное учреждение "Морской государственный университет им. адмирала Г.И. Невельского" Газотрубный котел
RU2245490C2 (ru) * 2002-07-01 2005-01-27 Федеральное государственное образовательное учреждение "Морской государственный университет им. адмирала Г.И. Невельского" Газотрубный котел
CN2758594Y (zh) * 2004-12-29 2006-02-15 杭州特种锅炉厂 一种燃油气相变真空换热锅炉
CN100462531C (zh) * 2005-09-01 2009-02-18 西安交通大学 一种提高联合循环电厂效率的系统和方法

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Also Published As

Publication number Publication date
WO2010133951A1 (en) 2010-11-25
ITAN20090023A1 (it) 2010-11-21
RU2491481C1 (ru) 2013-08-27
CN102439375A (zh) 2012-05-02
US20120067549A1 (en) 2012-03-22
RU2011152029A (ru) 2013-06-27
IT1394354B1 (it) 2012-06-15

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