EP1957865A2 - Tube de generateur de vapeur, procede de fabrication associe et generateur de vapeur en continu - Google Patents

Tube de generateur de vapeur, procede de fabrication associe et generateur de vapeur en continu

Info

Publication number
EP1957865A2
EP1957865A2 EP06830084A EP06830084A EP1957865A2 EP 1957865 A2 EP1957865 A2 EP 1957865A2 EP 06830084 A EP06830084 A EP 06830084A EP 06830084 A EP06830084 A EP 06830084A EP 1957865 A2 EP1957865 A2 EP 1957865A2
Authority
EP
European Patent Office
Prior art keywords
steam generator
insert
tube
sheet metal
pipe
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Withdrawn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
EP06830084A
Other languages
German (de)
English (en)
Inventor
Joachim Franke
Oliver Herbst
Holger Schmidt
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to EP06830084A priority Critical patent/EP1957865A2/fr
Publication of EP1957865A2 publication Critical patent/EP1957865A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/18—Inserts, e.g. for receiving deposits from water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B29/00—Steam boilers of forced-flow type
    • F22B29/06—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes
    • 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
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49361—Tube inside tube

Definitions

  • the invention relates to a steam generator tube with a swirl-generating inner profile. It also relates to a once-through steam generator with such steam generator pipes. The invention further relates to a method for producing a swirl-generating inner profile
  • a once-through steam generator In the combustion chamber walls of a once-through steam generator are usually employed with one another via webs welded gas-tight steam generator tubes to form a combustion chamber surrounding the gas flue, which are connected in parallel for the flow of a flow ⁇ medium.
  • tubes with ⁇ instead of tubes with ⁇ as intermediate, separate flat bar webs may also pipes are used, which are factory equipped with angeform- th fins.
  • the steam generator tubes can be arranged vertically or at an angle.
  • the steam generator tubes are typically designed so that even at low mass flow density of the steam generator tubes by the flowing medium a sufficient cooling of the steam generator tubes is ensured for a si ⁇ cheres performance of the once-through steam generator.
  • the heat transfer ⁇ properties of a steam generator tube An important design criterion, the heat transfer ⁇ properties of a steam generator tube.
  • a high heat transfer enables a particularly effective heating of the medium flowing through the steam generator tube with reliable cooling of the steam generator tube itself.
  • the heat transfer behavior of a steam generator tube can be impaired in conventional steam generators that are operated at subcritical pressures by the occurrence of so-called boiling crises.
  • the pipe wall is no longer wetted by the liquid flow medium - usually water - and is therefore only insufficiently cooled. As a result of Drying out early could then reduce the strength values of the pipe wall.
  • steam generator tubes which, as a result of a deformation process (eg cold drawing), have a surface structure on the inside or an inner profile in the manner of helically wound ribs.
  • the shape of the ribs which is the steam generator tube Menden throughflow medium is to swirl, so the heavy ⁇ re liquid phase that due to the centrifugal forces acting on the tube inner wall collects and forms there a wetting liquid ⁇ keitsfilm. This ensures reliable heat transfer from the inner pipe wall to the flow medium even with comparatively high heat flow densities and low mass flow densities.
  • a disadvantage of the known steam generator tubes is that they are comparatively complex to produce due to the limited deformability of the tube material.
  • the formability is severely restricted, particularly in the case of high-temperature steels with a high chromium content.
  • Such materials play an increasingly important role in steam generator tubes nowadays, since - at least in principle - they allow a steam generator to be designed for particularly high steam parameters, in particular for high fresh steam temperatures, and the associated high efficiency. Due to the material-related restrictions in processing, it is not possible in practice, or only with considerable effort, to produce internally finned tubes with the desired, aerodynamically advantageous finned profiles as part of a deformation process from smooth tubes.
  • the aforementioned object is achieved according to the invention by an insert disposed in the tube interior to form a drallerzeu ⁇ constricting the inner profile at least, the use of at least men a Blechrah- comprises a number of large-area cutouts, wherein the insert is twisted in the longitudinal direction, and the longitudinal edges of the respective sheet metal frame at least partially abut the inner tube wall.
  • the invention proceeds from the consideration that the multiphase flow is to have a swirl within a steam generator tube to improve the heat transfer ⁇ te, so that the liquid phase due to the rotation of the inner pipe wall is guided and wets uniformly as possible.
  • Suitable flow-guiding elements should therefore be arranged in the interior of the tube for the targeted production and maintenance of such a swirl flow.
  • the flow guidance is particularly bene- ficial if one hand does not "over-twisting" still too much pressure drops along the flow path occurring defects th ⁇ , on the other hand, the swirl effect is still intense enough to the liquid phase of the flow medium on the ge ⁇ to lead the entire pipe circumference to the inner pipe wall.
  • the flow-guiding elements are substantially in the manner of a home should be nenprofils arranged on the inner tube wall and the tube ⁇ cross-section not in the center, or only block slightly.
  • the swirl-generating inner profile should be realized by means of tube internals or inserts, which can be manufactured in the desired shape independently of the steam generator tube and are subsequently drawn into the tube.
  • a twisted in the longitudinal direction of sheet-metal frame is disposed in the tube interior with the concept presented here, at least partially, before ⁇ preferably, however, completely abuts with its longitudinal edges on the tube inner wall.
  • a built-in body formed from a plurality of sheet metal frames and twisted in the longitudinal direction is arranged in the interior of the tube, each of the twisted or twisted sheet metal frames resting with its two longitudinal edges on the inner tube wall.
  • the all recesses total covered area of at least 50%, preferably depending ⁇ but at least 80%, of the base makes each sheet metal frame from ⁇ so that after insertion into the tube interior, a substantial part of the tube cross-section in the center free remains. So that the steam inside the tube can undisturbed akkumu ⁇ lose and flow out.
  • the twist generation is caused by the sections near the edge, i.e., the edge webs that surround or enclose the recesses, each of which winds helically along the inner wall of the tube and has a shape and function similar to the fins of conventional finned tubes.
  • the contiguous with the "over-twisting" negative effects of conventional twisted tapes can be avoided. Instead, it is achieved with liquid flow means also at moderate swirl intensity and at a comparatively low pressure loss, a uniform wetting of the Rohrin ⁇ nenwand.
  • the end-side gen transverse webs and the transverse webs optionally between two in each case arranged one behind the other in the longitudinal direction
  • Recesses are provided, only have a support function for the tube insert and only insignificantly disturb the swirl flow in the center of the steam generator tube.
  • a particular advantage of the new concept that contrast in the Ge ⁇ to the finned tubes, the considerable using deformation forces are produced ⁇ tubes by a deformation process of smooth, great flexibility respect ⁇ Lich the flow-related parameters, such as number interturn, Width Edge webs (corresponding to the fin height for finned tubes), flank angle and sharp edges exist.
  • Corresponding design specifications can be implemented particularly simply and precisely when implemented as an insert component because, as a rule, only one or more suitably punched-out or cut-out sheets or metal strips have to be provided and inserted into a smooth pipe that is comparatively easy to manufacture by twisting.
  • the tube insert is seated at the intended operating temperature of the steam generator tube due to the tension of the drill ⁇ or the sheet metal frame / s non-slip in the tube interior.
  • the sheet metal material and the twisting tension are thus matched to the geometric conditions in such a way that creeping or slipping of the insert in the interior of the pipe is prevented.
  • the fixed connection is advantageously a highly heat-resistant welded connection.
  • a variant which is somewhat more complex to produce, but which ensures particularly secure fixation, comprises a plurality of spot welds distributed over the longitudinal edges of the sheet metal frame. The welding fixation can be produced particularly well if the sheet metal frame or frames is / are made from a material with a composition similar to the tube material.
  • the Dampferzeu ⁇ gerrohre described herein are used in a fossil-fired-through steam generator. Due to the swirl-generating inner profile of the pipes and the associated improvements in heat transfer behavior, this is also the case for boiler designs with
  • Tube assembly ( "vertical Tubing") a sufficient Wär ⁇ meübertragung to the flow medium or a cooling of the tube walls ensured.
  • the power plant comprising the steam generator can be designed for a lower minimum load.
  • the aforementioned pipe internals can also be closed with convective heating, such as is present in the waste heat boiler of combined cycle power plants a reduction of the heat exchanger surface and to interpret thus lead ⁇ handy cost savings.
  • Installation body which consists of one or more interconnected sheet metal frames, is introduced into the interior of the pipe, the installation body being relaxed after insertion until it is at least partially in contact with the longitudinal edges of the pipe inner wall.
  • the sheet metal frame (s) is / are prestressed by twisting and drawn into the steam generator tube with a reduced diameter in this state. After its partial relaxation, the installation body presses itself against the inner pipe wall.
  • the remaining drill voltage is chosen so that s can take place of or the plate frame / at the intended operating temperature of the evaporator tube and no slipping no building facing on the desired degree ⁇ rising untwisting.
  • the installation body is advantageously welded to the inner tube wall at least at one end.
  • the new pipe inserts result in a flexible flow guidance in the pipe interior which can be used for all pipe materials and which can be adapted according to the need for improving the heat transfer. Due to the design flexibility brought about by the largely freely configurable geometric parameters, a swirl profile which varies over the length of the evaporator tube can be set and which is exactly adapted to the respective local heating.
  • the production limitations of the traditional finned tubes are avoided. Especially in the case of new power plant developments with higher design values for the steam parameters, the production of finned tubes is becoming more and more complex due to the higher chromium content of the new materials required for higher temperatures and pressures.
  • the new swirl-generating internals can replace the finned tube or enable such applications in the first place.
  • An embodiment of the invention is based on a
  • FIG 2 is a sectional view of a steam generator tube with a swirl-generating internal profile ausbil ⁇ Denden insert which consists of a single twisted sheet metal frame,
  • FIG. 4 shows a sectional view of a steam generator tube similar to that in FIG. 2, the insert however consisting of two sheet metal frames oriented at an angle to one another,
  • FIG. 5 shows a cross section through an insert, which is constructed similarly to the insert from FIG. 4, in two successive production phases before the twisting, and
  • FIG. 6 shows a cross section through a tube insert according to an alternative embodiment, likewise in two successive manufacturing phases before the twisting.
  • FIG. 1 shows schematically a once-through steam generator 2 with a rectangular cross section, the vertical gas train of which is formed by a surrounding or combustion chamber wall 4 which merges into a funnel-shaped bottom 6 at the lower end.
  • a firing area V of the throttle cable a number of burners for a fuel are installed in an opening 8, only two of which are visible, in the combustion chamber wall 4 composed of steam generator tubes 10.
  • the vertically arranged steam generator tubes 10 are gas-tightly in the approximate range Befeue ⁇ V to an evaporator heating surface 12 are welded together.
  • Above the firing region V of the gas flue are Konvetechnischsterrorismflachen 14.
  • a flue gas outlet channel is 16 the flue gas produced by combustion of a fossil fuel RG vertical gas ⁇ train leaves over the.
  • the flow medium flowing in the steam generator tubes 10 is heated by the radiant heat of the burner flames and by convective heat transfer from the flue gas RG and thereby evaporated.
  • the flue gas RG serves as a heating medium for ⁇ flowing into the steam generator tubes 10 flow medium.
  • Water or a water-steam mixture is provided as the flow medium in the exemplary embodiment.
  • A-train boiler (so-called tower boiler) are of course also other boiler ⁇ configurations such.
  • the steam generator tubes to be described below can be used in all of these variants, both in the lighting area and in the rest of the flue gas duct. Also a use in a Abhitzedampferzeu ⁇ ger is conceivable.
  • the insert 22 comprises a sheet metal frame 24, which is twisted in the longitudinal direction, ie around the tube axis, and has a plurality of large-area recesses 26.
  • the width B of the sheet metal frame 24 shown in FIG. 3 before it is twisted is slightly larger than the tube diameter of the smooth tube 20 provided for receiving it.
  • the rectangular recesses 26 are formed in the longitudinal direction. hen arranged in a row one behind the other and separated by narrow crossbars 28. In the transverse direction the recesses ⁇ occidentalre CKEN 26 almost over the entire width B of the sheet metal frame 24 and are separated from the two longitudinal edges 30 by narrow edge webs 32nd
  • the sheet metal frame 24 is now twisted about its longitudinal axis 34 and, in this prestressed state, is introduced into a smooth tube 20 provided as a steam generator tube 10.
  • the width B of the sheet metal frame 24 is sized in relation to Rohr malmes ⁇ ser, the sheet metal frame that 24 can partially relax, such that the edge webs 32 in Montageendzu ⁇ stood along a given helical line on the pipe inner wall 36 along winds.
  • the remaining residual voltage fixes the sheet metal frame 24 while securely in the tube interior 18.
  • the edge webs 32 of the sheet metal frame 24 is welded at meh ⁇ eral points with the inner pipe wall 36th
  • the sheet metal frame 24 is made of a heat-resistant metallic material with a high chromium content. Of course, other suitable materials known to those skilled in the art can also be used. Due to the fact that the sheet metal frame 24 is manufactured separately from the smooth tube 20, the height and width of the edge webs 32 and the pitch angle of the helical lines formed by the longitudinal edges 30 can in particular be set as desired. In a first approximation, the geometric parameters are generally chosen in a manner similar to that of the fins of conventional finned tubes. In addition, but also a location-dependent adaptation and optimization can take place, the chamber wall on the course of the heating profile along the Brennkam ⁇ takes 4 consideration.
  • FIG 4 also shows a sectional view of a steam generator tube 10 with an insert 22 which consists of two connected mitein ⁇ other and angularly aligned
  • Sheet metal frame 24 is made. Each of the two sheet metal frames 24 has, similar to the sheet metal frame 24 shown in FIG. recesses 26 on.
  • Screw thread internal profile of the insert 22 formed ge ⁇ Gurss FIG 2 may be one for the uniform wetting of the inner tube wall 36 with a liquid-stechniksfilm leading swirl flow produced thereby, particularly with comparatively large internal pipe diameters even more effective way.
  • FIG 5 a particularly simple and convenient Ferti ⁇ is a transmission method shown for such use 22nd
  • two similar sheet metal frames 24 each of which is designed similarly to the sheet metal frame 24 shown in FIG ⁇ other welded (spot weld 40).
  • the two sheet metal frames 24 are then bent in the manner shown in FIG. 5 by approximately 90 ° along their longitudinal axis 34, so that the cross-sectionally cross-shaped structure shown in the right part of FIG. 5 is formed.
  • the insert 22 is finally twisted in the longitudinal direction and drawn into a smooth tube 20.
  • an existing three mitein ⁇ other connected sheet metal frame 24 insert 22 can be manufactured (FIG 6), which forms a swirl-generating internal profile in the form of a six-hand screw thread by twisting and introduction into a smooth pipe 20th

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Measuring Volume Flow (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

La présente invention concerne un tube de générateur de vapeur (10). L'objectif de la présente invention est de mettre au point un tel tube de générateur de vapeur qui soit simple et économique à fabriquer, qui offre une large gamme de conditions de fonctionnement différentes et qui présente un comportement de transmission thermique particulièrement avantageux. A cette fin, au moins un élément d'insertion (22) est placé à l'intérieur (18) du tube afin de former un profilé intérieur générateur de turbulence. Cet élément d'insertion (22) présente au moins un châssis en tôle (24) pourvu d'un certain nombre de grands évidements (26). Selon cette invention, l'élément d'insertion (22) est torsadé dans la direction longitudinale et repose au moins partiellement sur la paroi intérieure (36) du tube avec ses arêtes longitudinales (30).
EP06830084A 2005-12-05 2006-11-22 Tube de generateur de vapeur, procede de fabrication associe et generateur de vapeur en continu Withdrawn EP1957865A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06830084A EP1957865A2 (fr) 2005-12-05 2006-11-22 Tube de generateur de vapeur, procede de fabrication associe et generateur de vapeur en continu

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP05026486A EP1793163A1 (fr) 2005-12-05 2005-12-05 Tube de générateur de vapeur, procédé de fabrication associé et chaudière à vapeur à passage unique
PCT/EP2006/068760 WO2007065791A2 (fr) 2005-12-05 2006-11-22 Tube de generateur de vapeur, procede de fabrication associe et generateur de vapeur en continu
EP06830084A EP1957865A2 (fr) 2005-12-05 2006-11-22 Tube de generateur de vapeur, procede de fabrication associe et generateur de vapeur en continu

Publications (1)

Publication Number Publication Date
EP1957865A2 true EP1957865A2 (fr) 2008-08-20

Family

ID=36889180

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05026486A Withdrawn EP1793163A1 (fr) 2005-12-05 2005-12-05 Tube de générateur de vapeur, procédé de fabrication associé et chaudière à vapeur à passage unique
EP06830084A Withdrawn EP1957865A2 (fr) 2005-12-05 2006-11-22 Tube de generateur de vapeur, procede de fabrication associe et generateur de vapeur en continu

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05026486A Withdrawn EP1793163A1 (fr) 2005-12-05 2005-12-05 Tube de générateur de vapeur, procédé de fabrication associé et chaudière à vapeur à passage unique

Country Status (13)

Country Link
US (1) US20090050307A1 (fr)
EP (2) EP1793163A1 (fr)
JP (1) JP2009518611A (fr)
KR (1) KR20080081805A (fr)
CN (1) CN100567813C (fr)
AR (1) AR058847A1 (fr)
AU (1) AU2006324058B2 (fr)
BR (1) BRPI0619421A2 (fr)
CA (1) CA2632313A1 (fr)
RU (1) RU2411410C2 (fr)
TW (1) TW200732598A (fr)
WO (1) WO2007065791A2 (fr)
ZA (1) ZA200710581B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8350176B2 (en) * 2008-06-06 2013-01-08 Babcock & Wilcox Power Generation Group, Inc. Method of forming, inserting and permanently bonding ribs in boiler tubes
DE102009024587A1 (de) * 2009-06-10 2010-12-16 Siemens Aktiengesellschaft Durchlaufverdampfer
EP2390567A1 (fr) * 2010-05-31 2011-11-30 Siemens Aktiengesellschaft Dispositif de fabrication de corps d'insertion pour tuyaux de génération de vapeur
DE102010040206A1 (de) * 2010-09-03 2012-03-08 Siemens Aktiengesellschaft Solarthermischer Absorber zur Direktverdampfung, insbesondere in einem Solarturm-Kraftwerk
KR101400833B1 (ko) * 2012-12-26 2014-05-29 주식회사 경동나비엔 핀-튜브 방식의 열교환기
JP2014152948A (ja) * 2013-02-05 2014-08-25 Mitsubishi Heavy Ind Ltd 伝熱管および排熱回収ボイラ
DE102014013019B3 (de) * 2014-09-02 2015-07-23 Universität Stuttgart Vorrichtung zur pulsations- und oszillationsfreien Totalverdampfung von Medien; Handgerät zum Bedampfen von Oberflächen
CN109416172B (zh) * 2016-07-07 2021-06-08 西门子股份公司 具有涡旋式安装体的蒸汽发生器管
TWI616620B (zh) * 2017-07-28 2018-03-01 China Steel Corp Radiant tube device

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US493376A (en) * 1893-03-14 William eaves
US960024A (en) * 1909-09-07 1910-05-31 August J Koegler Agitator for grain-heaters.
US1056373A (en) * 1912-10-25 1913-03-18 Franz Kuewnick Retarder for flue-tubes.
DE435222C (de) * 1925-07-24 1926-10-09 Siemens Schuckertwerke G M B H Einlage fuer Kesselrohre zur Erzielung einer Drallbewegung des Rohrinhaltes
US2079144A (en) * 1935-06-17 1937-05-04 Reliable Refrigeration Co Inc Thermal fluid conduit and core therefor
US2553141A (en) * 1945-08-17 1951-05-15 Elgin Rowland Parker Baffle
US2691991A (en) * 1950-08-30 1954-10-19 Gen Motors Corp Heat exchange device
US3343523A (en) * 1965-10-22 1967-09-26 Foster Wheeler Corp Vapor generator
US3394736A (en) * 1966-02-21 1968-07-30 Acme Ind Inc Internal finned tube
US3636982A (en) * 1970-02-16 1972-01-25 Patterson Kelley Co Internal finned tube and method of forming same
HU173583B (hu) * 1976-06-30 1979-06-28 Energiagazdalkodasi Intezet Ustrojstvo dlja uluchshenija teploperedachi v teploobmennykh trubakh
JPS5812989A (ja) * 1981-07-17 1983-01-25 Hitachi Ltd 熱伝達装置
JPS5852491U (ja) * 1981-09-29 1983-04-09 株式会社東芝 熱交換器
US4856461A (en) * 1988-02-01 1989-08-15 Combustion Engineering, Inc. Multiple tube steam dryer for moisture separator reheater
JP2564161B2 (ja) * 1988-02-05 1996-12-18 川崎重工業株式会社 熱交換器
JPH051892A (ja) * 1991-06-24 1993-01-08 Hitachi Ltd 旋回流促進型沸騰伝熱管
JPH08146170A (ja) * 1994-11-21 1996-06-07 Toshiba Corp 高熱負荷除熱装置
DE19929088C1 (de) * 1999-06-24 2000-08-24 Siemens Ag Fossilbeheizter Dampferzeuger mit einer Entstickungseinrichtung für Heizgas
US6422179B2 (en) * 2000-04-28 2002-07-23 Aos Holding Company Water heater flue system
AU2003275378A1 (en) * 2002-10-04 2004-05-04 Nooter/Eriksen, Inc. Once-through evaporator for a steam generator
JP2004197664A (ja) * 2002-12-19 2004-07-15 Sanyo Electric Co Ltd 排気ガス熱交換器、および、冷凍装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007065791A2 *

Also Published As

Publication number Publication date
JP2009518611A (ja) 2009-05-07
BRPI0619421A2 (pt) 2011-10-04
CN101223402A (zh) 2008-07-16
TW200732598A (en) 2007-09-01
US20090050307A1 (en) 2009-02-26
EP1793163A1 (fr) 2007-06-06
AR058847A1 (es) 2008-02-27
KR20080081805A (ko) 2008-09-10
ZA200710581B (en) 2009-03-25
AU2006324058B2 (en) 2010-10-21
CN100567813C (zh) 2009-12-09
RU2008127383A (ru) 2010-01-20
WO2007065791A2 (fr) 2007-06-14
AU2006324058A1 (en) 2007-06-14
WO2007065791A3 (fr) 2007-10-11
CA2632313A1 (fr) 2007-06-14
RU2411410C2 (ru) 2011-02-10

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