WO2007087801A2 - Dispositif de chauffage - Google Patents

Dispositif de chauffage Download PDF

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Publication number
WO2007087801A2
WO2007087801A2 PCT/DE2007/000216 DE2007000216W WO2007087801A2 WO 2007087801 A2 WO2007087801 A2 WO 2007087801A2 DE 2007000216 W DE2007000216 W DE 2007000216W WO 2007087801 A2 WO2007087801 A2 WO 2007087801A2
Authority
WO
WIPO (PCT)
Prior art keywords
housing
heating medium
heater according
heat exchanger
spiral
Prior art date
Application number
PCT/DE2007/000216
Other languages
German (de)
English (en)
Other versions
WO2007087801A3 (fr
Inventor
Wolfgang Schleiter
Original Assignee
Viessmann Werke Gmbh & Co. Kg
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 Viessmann Werke Gmbh & Co. Kg filed Critical Viessmann Werke Gmbh & Co. Kg
Priority to CA2637845A priority Critical patent/CA2637845C/fr
Priority to EP07721886A priority patent/EP1979696B1/fr
Priority to US12/278,065 priority patent/US20100044011A1/en
Priority to AT07721886T priority patent/ATE553346T1/de
Publication of WO2007087801A2 publication Critical patent/WO2007087801A2/fr
Publication of WO2007087801A3 publication Critical patent/WO2007087801A3/fr

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
    • 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
    • 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
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • 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
    • F28F9/02—Header boxes; End plates

Definitions

  • the invention relates to a heater according to the preamble of patent claim 1.
  • a heater of the type mentioned is known from DE 38 15 647 Al.
  • This consists of at least one spirally wound about a helical axis, by a heating medium (in this case, a refrigerant) can flow through the heat exchanger as a flat tube forward and return end coil ends and heating medium connections and which is formed a correspondingly coiled fürströmspalt defining, wherein at least a Wendelende a cap-like terminal housing connected liquid-tight and is arranged at this the heating medium connection.
  • FIG. 1 of DE 38 15 647 A1 shows a solution with a single and FIG. 2 a solution with a double helix twisted into one another.
  • Another heater is known from DE 102 11 489 C1, wherein such equipped with double or multiple helices as heat exchangers heaters are intended especially for larger power ranges.
  • the integration of the two coiled, formed from flat tubes heat exchanger is carried out in the said heater by welding with end walls on both sides (so-called boards), are embossed in accordance with the slope of the two coiled flat tubes or the heat exchanger corresponding recesses, the open ends of there slope-fitting and obliquely cut flat tubes are connected to inlet and outlet openings in the boards (the oblique gate is production technology required because the boards are produced by deep drawing, thus no 90 ° angle is possible).
  • These boards must also be designed as hollow boards in order to supply and return chambers with front and back for connecting to the mains.
  • the invention is based on the object, and indeed with the proviso, while a total to create more favorable conditions for production.
  • At least one end of the coil is cut off obliquely with respect to the helical axis and the end housing is likewise inclined in the opposite direction, preferably with the heating medium connection oriented in the helical axis direction in the cap-like closure housing.
  • the inflow and outflow openings are arranged at the helical ends in a direction inclined with respect to the flow direction plane to which the corresponding but opposite cut end or distribution housing are attached, ie between the helical end and the end housing is according to the invention an obliquely oriented plane (connection plane) is provided.
  • this oblique gate facilitates the connection of the terminal housing to the coil end, since all connection edges are accessible to a welding process without further spreading of the coil, which is not the case with coils in the sense of DE 102 11 489 C1 or DE 10 2004 005 048 A1 would be possible because the fürströmspalt (hot gas fürströmspalt) in contrast to DE 38 15 647 Al is relatively narrow.
  • the termination or distributor housing in side view are preferably designed substantially as right-angled triangles whose hypotenuse forms the connection side for the coil ends and the heating medium connection is arranged on their larger catheters.
  • the solution according to the invention is in particular intended for heaters whose heat exchangers consist of at least two coiled tubing, in which it is therefore necessary to hydraulically connect the flat tube coils involved, to close them at their ends and to provide common heating medium connections.
  • the solution according to the invention is advantageously also suitable for heaters, which, for example, due to lower power requirements with only one coiled flat tube (ie a heat exchanger) get along.
  • the heater according to the invention has in particular the function of a boiler (see again DE 102 11 489 C1 and DE 10 2004 005 048 Al). Accordingly, it is preferably provided that the at least one heat exchanger surrounds a combustion chamber which, viewed in the direction of the helix, is delimited at both ends by a respective end wall, wherein a housing, which consists of a man-made part and the exhaust part. is formed end walls, enclosing the heat exchanger to form an exhaust gas space.
  • the cap-like closure or distribution housing with their Schwarzmediumsan somebody else can be made independently of the heat exchanger coils and on the coils themselves, apart from the liquid-tight connection of their adjacent walls, no overflow openings or other special manufacturing interventions are required to meet the invention
  • Forming the two heat exchanger coils as an essential element of the heater a dual function, namely on the one hand, the hydraulic connection of the two coils is made by the distributor housing, which also represent a convenient approach for preferably oriented in Wendelachsriehtung forward and return ports, and on the other hand, the heating medium return directly and concentrated supplied to the two coil ends or the supply side of the heating medium flow accordingly concentrated dissipated.
  • the cap-like terminal or distributor housing are formed in cross-section to the flow direction of the heating medium substantially corresponding to the opening cross-section of both spiral ends, d. h.,
  • the two cap-like distributor housing take up virtually no additional space and represent so far only a mecanickontur beginnere continuation of the coil ends.
  • the distributor housings are arranged starting from the lower flat tube or the lower flat tube helix with increasing hypotenuse with respect to the return feed and also the outflowing feed.
  • the terminal walls of the distributor housing opposite the attached helical ends can advantageously have a concave or profiled concave on the inside.
  • the termination or distributor housing can be designed in the form of deep-drawn parts or in such a way that the distributor housing are each formed from one of their formndform corresponding and réellefaltendem sheet metal blank. It is particularly preferably provided that the end housing in the form of a casting, in particular a precision casting, is formed.
  • Figure 1 shows a simplified section through the actual heat exchanger of the heater
  • FIG. 2 shows a corresponding section according to FIG. 1 in an embodiment according to the invention
  • Figure 2A shows a sheet metal blank for the formation of distributor housings
  • Figure 3 in perspective one end of the double helix
  • FIG. 4 shows the end of the double helix according to FIG. 3 with attached distributor housing (not yet welded on);
  • FIG. 5 shows an illustration corresponding to the view according to FIG. 4 of a helical end in a contour-matched embodiment of the horseshoe housing (precision casting);
  • FIG. 6 shows an oblique section along line AA in FIG. 5;
  • Figure 7 in perspective the heat exchanger of the heater in an overall view;
  • Figure 8 also in perspective and simplifies the entire heater without external accessories
  • FIG. 9 in perspective one end of a heat exchanger formed only from a coil with attached end housing.
  • FIG. 10 shows an embodiment of the closure housing made of fine cast iron.
  • the heater of the invention consists according to embodiment still and with reference to Figures 1 to 8 from two helically coiled, flowed through by a heating medium and a correspondingly coiled fürströmspalt S for hot gases defining heat exchangers 1, 2, which are flat tubes F parallel to each other and into each other or, as it were, screwed together.
  • heat exchangers 1, 2, which thus form a double helix, have two helical ends 3, 4, respectively, on the return and the flow side. 3 ', 4' (see FIGS. 1, 2), wherein the two heat exchangers 1, 2, which are hydraulically connected to one another with respect to heating medium connections 5, enclose a cylindrical combustion chamber BR, which, viewed axially (ie in the direction of the helical axis), ends at both ends each of a Ab ⁇ chlußwand 6, 7 is limited, one of which serves as a connection wall 6 for a burner B.
  • the forward and backward side coil ends 3, 4, 3 ', 4' are for the purpose of hydraulic connection of the two flat tubes F together in each case a cap-like, open to the flat tubes F open as distributor housing end housing 12 liquid-tight, each distributor housing with one of the Heating medium connections 5 is provided.
  • the cap-like distributor housings in the cross section seen in the flow direction of the heating medium are designed essentially corresponding to the opening cross-section of both spiral ends 3, 4, 3 ', 4', in order to occupy as little space as possible.
  • the inflow and outflow openings 14 at the coil ends 3, 4, 3 ', 4' according to the invention are arranged in a plane E oriented obliquely with respect to the flow direction (see FIG. 2), to which the according opposite obliquely cut distributor housing attached, d. H. preferably welded.
  • the end casings 12 in side view essentially represent rectangular triangles whose hypotenuses H form the connection side for the coil ends 3, 4, 3 ', 4 1 , on whose larger cathodes K the associated heating medium connection 5 is arranged ,
  • the end housing 12 is preferably arranged with respect to the return flow guide and FIG. 2 from the lower flat tube F or from the heat exchanger 2 with rising hyphenhen H.
  • the coil ends 3, 4, 3 ', 4' opposite end walls 13 of the manifold housing 12 may concave or inside be profiled profiled, as illustrated in the oblique sectional view according to Figure 6 and 10 with.
  • terminating housings 12 can also readily be produced as deep-drawn parts, but they can also be formed from a sheet blank corresponding to their final shape and one of which is shown in FIG. 2A for a side view of a triangular end housing 12, which form is preferred
  • FIG. 2A for a side view of a triangular end housing 12, which form is preferred
  • FIG. 2A for a side view of a triangular end housing 12, which form is preferred
  • an optimized distribution of the return inflow and the outflow of the heating medium to the two coiled heat exchangers 1, 2 results.
  • FIG. 10 shows, with the inclusion of the heating medium connection 5, a preferred embodiment of the closure housing 12 as a precision casting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

L'invention concerne un dispositif de chauffage comportant au moins un échangeur thermique hélicoïdal (1, 2) enroulé autour d'un axe hélicoïdal, pouvant être parcouru par un fluide de chauffage, présentant en tant que tuyau plat des extrémités d'hélice (3, 4) et des connexions de fluide de chauffage (5) côté écoulement avant et arrière, ledit échangeur thermique définissant par ailleurs un espace d'écoulement présentant une forme hélicoïdale correspondante. Un boîtier terminal en forme de capot (12) est connecté de façon étanche aux fluides à au moins une extrémité d'hélice (3, 4), la connexion de fluide de chauffage (5) étant connectée audit boîtier. Selon l'invention, au moins une extrémité d'hélice (3, 4) est coupée de façon oblique par rapport à l'axe d'hélice et le boîtier terminal (12) est conçu de façon oblique opposée côté extrémité d'hélice. La connexion de fluide de chauffage (5) est de préférence orienté dans l'axe d'hélice sur le boîtier terminal en forme de capot (12).
PCT/DE2007/000216 2006-02-03 2007-02-02 Dispositif de chauffage WO2007087801A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA2637845A CA2637845C (fr) 2006-02-03 2007-02-02 Dispositif de chauffage
EP07721886A EP1979696B1 (fr) 2006-02-03 2007-02-02 Dispositif de chauffage
US12/278,065 US20100044011A1 (en) 2006-02-03 2007-02-02 Heating device
AT07721886T ATE553346T1 (de) 2006-02-03 2007-02-02 Heizgerät

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006004900.4 2006-02-03
DE102006004900A DE102006004900A1 (de) 2006-02-03 2006-02-03 Heizgerät

Publications (2)

Publication Number Publication Date
WO2007087801A2 true WO2007087801A2 (fr) 2007-08-09
WO2007087801A3 WO2007087801A3 (fr) 2007-09-20

Family

ID=38229686

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/000216 WO2007087801A2 (fr) 2006-02-03 2007-02-02 Dispositif de chauffage

Country Status (6)

Country Link
US (1) US20100044011A1 (fr)
EP (1) EP1979696B1 (fr)
AT (1) ATE553346T1 (fr)
CA (1) CA2637845C (fr)
DE (1) DE102006004900A1 (fr)
WO (1) WO2007087801A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2149636A1 (fr) * 2008-08-01 2010-02-03 Herbert Kannegiesser GmbH Dispositif de chauffage d'un caloporteur notamment pour machines de laverie et utilisation préférée du dispositif
EP2306112A1 (fr) 2009-09-29 2011-04-06 Viessmann Werke GmbH & Co. KG Appareil de chauffage
DE102011010444A1 (de) 2011-02-04 2012-08-09 Viessmann Werke Gmbh & Co Kg Heizkessel
RU2553007C1 (ru) * 2013-12-25 2015-06-10 Юрий Яковлевич Печенегов Теплоутилизатор
EP3242103A4 (fr) * 2014-12-15 2018-11-07 Jian Liu Composant en forme de cylindre et récipient, et boîtier de moteur électrique basé sur ceux-ci

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008014523A1 (de) * 2008-03-15 2009-09-17 Robert Bosch Gmbh Heizgerät
DE102010051664A1 (de) * 2010-11-17 2012-05-24 Liebherr-Hydraulikbagger Gmbh Arbeitsgerät
DE102010051663A1 (de) 2010-11-17 2012-05-24 Liebherr-Hydraulikbagger Gmbh Arbeitsgerät
DE102015118094A1 (de) 2015-10-23 2017-04-27 Viessmann Werke Gmbh & Co Kg Wärmeübertragungsvorrichtung
IT202100025346A1 (it) * 2021-10-04 2023-04-04 Condevo S P A Avvolgimento tubiero per una cella di scambio di calore a gas per una caldaia

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1554312A (fr) * 1967-03-07 1969-01-17
GB1270568A (en) * 1969-04-21 1972-04-12 Henry Brants Heat exchanger
DE10026548C1 (de) * 2000-05-27 2001-11-22 Viessmann Werke Kg Wendelspalt-Wärmetauscher
DE102004023711B3 (de) * 2004-05-11 2005-10-13 Viessmann Werke Gmbh & Co Kg Heizgerät

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1485770A (en) * 1922-03-20 1924-03-04 Mare Baltzar E L De Regenerator
US1968890A (en) * 1932-11-05 1934-08-07 Cutter Mfg Company Fire screen
US2566310A (en) * 1946-01-22 1951-09-04 Hydrocarbon Research Inc Tray type heat exchanger
SE423147B (sv) * 1977-04-28 1982-04-13 Elof Viktor Asman Anordning vid vermealstrare innefattande vermevexlingsytor som skiljer en uppvermningsgas fran ett annat medium som skall uppvermas
DE3122944A1 (de) * 1981-06-10 1983-01-13 Parca Norrahammar AB, 56200 Norrahammar Rohrwaermetauscher
SE467321B (sv) * 1982-02-08 1992-06-29 Elge Ab Spiralvaermevaexlare daer roeren har aatminstone delvis plana sidoytor
US4484561A (en) * 1982-09-14 1984-11-27 Crescent Metal Products, Inc. Gas convection oven
US5191911A (en) * 1987-03-18 1993-03-09 Quality Tubing, Inc. Continuous length of coilable tubing
US4863091A (en) * 1987-03-18 1989-09-05 Quality Tubing, Inc. Method and apparatus for producing continuous lengths of coilable tubing
DE3815647A1 (de) * 1987-06-05 1988-12-22 Sueddeutsche Kuehler Behr Rundwaermetauscher, insbesondere fuer kaeltemittel von klimaanlagen
JPH01179813A (ja) * 1988-01-09 1989-07-17 Daikichi Hajiki 廃タイヤ燃焼方法及びその装置
DE3902025A1 (de) * 1988-01-26 1989-07-27 Vaillant Joh Gmbh & Co Verfahren und einrichtungen zur herstellung eines einer verbrennung zuzufuehrenden, aus brenngas und verbrennungsluft bestehenden gemisches
JP2679930B2 (ja) * 1993-02-10 1997-11-19 昇 丸山 温水供給装置
US5607487A (en) * 1993-03-17 1997-03-04 Taylor; Leland T. Bottom feed - updraft gasification system
US6918882B2 (en) * 2001-10-05 2005-07-19 Scimed Life Systems, Inc. Guidewire with stiffness blending connection
US6702762B2 (en) * 2001-12-27 2004-03-09 Advanced Cardiovascular Systems, Inc. Apparatus and method for joining two guide wire core materials without a hypotube
DE10211489C1 (de) * 2002-03-15 2003-06-26 Viessmann Werke Kg Kompaktheizkessel
US6866642B2 (en) * 2002-11-25 2005-03-15 Advanced Cardiovascular Systems, Inc. Enhanced method for joining two core wires
FR2847972B1 (fr) * 2002-11-29 2005-03-04 Realisation Mecaniques Engenee Echangeur de chaleur et dispositif de production d'eau chaude sanitaire
DE102004005048A1 (de) * 2004-01-30 2005-09-01 Viessmann Werke Gmbh & Co Kg Heizgerät
CA2560579A1 (fr) * 2004-04-23 2005-11-03 Aarhuskarlshamn Denmark A/S Procede, appareil, systeme et echangeur de chaleur permettant d'augmenter la temperature d'une substance au depart au moins en partie a l'etat solide dans un conteneur
US7998090B2 (en) * 2004-08-31 2011-08-16 Abbott Cardiovascular Systems Inc. Guide wire with core having welded wire segments
JP2006234254A (ja) * 2005-02-24 2006-09-07 Sanyo Electric Co Ltd 熱交換器及びそれを用いたヒートポンプ式給湯装置
DE202005011633U1 (de) * 2005-07-20 2006-11-30 Viessmann Werke Gmbh & Co Kg Heizgerät
FR2929389B1 (fr) * 2008-03-27 2013-01-18 2 C Echangeur de chaleur pour installation de traitement par oxydation hydrothermale

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1554312A (fr) * 1967-03-07 1969-01-17
GB1270568A (en) * 1969-04-21 1972-04-12 Henry Brants Heat exchanger
DE10026548C1 (de) * 2000-05-27 2001-11-22 Viessmann Werke Kg Wendelspalt-Wärmetauscher
DE102004023711B3 (de) * 2004-05-11 2005-10-13 Viessmann Werke Gmbh & Co Kg Heizgerät

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2149636A1 (fr) * 2008-08-01 2010-02-03 Herbert Kannegiesser GmbH Dispositif de chauffage d'un caloporteur notamment pour machines de laverie et utilisation préférée du dispositif
EP2306112A1 (fr) 2009-09-29 2011-04-06 Viessmann Werke GmbH & Co. KG Appareil de chauffage
DE102009043288A1 (de) 2009-09-29 2011-04-14 Viessmann Werke Gmbh & Co Kg Heizgerät
DE102011010444A1 (de) 2011-02-04 2012-08-09 Viessmann Werke Gmbh & Co Kg Heizkessel
RU2553007C1 (ru) * 2013-12-25 2015-06-10 Юрий Яковлевич Печенегов Теплоутилизатор
EP3242103A4 (fr) * 2014-12-15 2018-11-07 Jian Liu Composant en forme de cylindre et récipient, et boîtier de moteur électrique basé sur ceux-ci

Also Published As

Publication number Publication date
CA2637845A1 (fr) 2007-08-09
ATE553346T1 (de) 2012-04-15
US20100044011A1 (en) 2010-02-25
CA2637845C (fr) 2014-10-07
DE102006004900A1 (de) 2007-08-16
EP1979696A2 (fr) 2008-10-15
EP1979696B1 (fr) 2012-04-11
WO2007087801A3 (fr) 2007-09-20

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