EP1290380B1 - Heizeinheit für wärmetransportflüssigkeit für eine zentralheizungsanlage - Google Patents

Heizeinheit für wärmetransportflüssigkeit für eine zentralheizungsanlage Download PDF

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Publication number
EP1290380B1
EP1290380B1 EP01937884A EP01937884A EP1290380B1 EP 1290380 B1 EP1290380 B1 EP 1290380B1 EP 01937884 A EP01937884 A EP 01937884A EP 01937884 A EP01937884 A EP 01937884A EP 1290380 B1 EP1290380 B1 EP 1290380B1
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EP
European Patent Office
Prior art keywords
heating unit
internal partition
unit according
heating
annular space
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Expired - Lifetime
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EP01937884A
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English (en)
French (fr)
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EP1290380A1 (de
EP1290380B8 (de
Inventor
Ernest Doclo
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    • 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
    • F24H1/225—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating electrical central heating boilers
    • 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
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
    • F24H1/102—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance

Definitions

  • the invention relates to a heating fluid heating unit for central heating installation.
  • a central heating installation includes a circuit of pipes in which one or several radiators or convectors, at least one expansion device and at least one heating station adapted to heat the coolant that we circulate in the circuit.
  • Heating stations for a central heating installation are already known in the state of the art, for example in FR-A-990 616, US-A-3,968,346 and US-A-4,469,935.
  • the heating station of the installation can notably be a coal, gas or oil boiler, and there are also electric heating stations.
  • the purpose of the present invention is to provide an installation central heating system in which the heating station consists of in one or more electric heating units of simple structure and compact, and allowing an efficient and flexible operation of installation.
  • the present invention relates to a heating unit heat transfer fluid of central heating.
  • This heating unit consists of a tank having a tubular outer wall, a first end wall and a second end wall, these walls delimiting a substantially cylindrical space.
  • a first partition tubular interior and a second tubular inner partition, concentric substance with the tubular outer wall, are mounted in the reservoir, the second inner partition having a larger diameter small than that of the first tubular partition.
  • a first space ring is located between the tubular outer wall and the first partition indoor; a second annular space is located between the first partition interior and the second interior partition; a central canal is located at inside the second interior partition.
  • the second annular space is in communication with the central channel near the first end wall and in communication with the first annular space at near the second end wall.
  • the tank is equipped with a inlet opening into the first annular space nearby of the first end wall and an exit port, in the second end wall, opening out of the central channel.
  • At least one thermopung electric is mounted in the central channel.
  • At least one probe Thermostatic is mounted in the tank.
  • the constituent elements of the heating unit are preferably made of metal.
  • tubular outer wall, the first and second end walls and the first inner partition can especially be made of steel.
  • the second interior partition can also be made in steel. According to another embodiment, this second interior partition is made of copper.
  • the heating unit comprises, in said second annular space, transfer elements of heat integral with said second outer wall.
  • These heat transfer elements can in particular consist of two rings spaced apart from one another, in solidarity with the said second internal partition and arranged perpendicular to the axis of this one, these two rings being pierced with several holes and being interconnected by means of several spaced apart metal bars one from the other.
  • these metal bars In order to have a large contact area with the heat transfer fluid that surrounds them, these metal bars present advantageously a ribbed outer surface. For the same reason, these metal bars can also wear fins.
  • Said heat transfer elements are made in one material with good conductivity.
  • the two rings between which are mounted the metal bars can be made of steel, but they are advantageously made of copper.
  • the metal bars themselves are preferably made of copper.
  • At least one probe Thermostatic is mounted in the tank. To ensure a more great security of operation, it may be desirable that two Thermostatic probes are mounted in the tank.
  • this probe or these thermostatic probes are mounted in the second space annular.
  • the first space ring is communicated with the second annulus thanks to several openings distributed around the periphery of said first inner partition, near the second end wall.
  • near the second end wall here means that the distance between these openings and the second wall endpoint is significantly smaller (for example, at least four times smaller) than the distance of these openings and the first wall end.
  • a ring can be mounted in the first annular space, between the tubular outer wall and the first interior partition.
  • This ring which (in the axial direction) is pierced of several holes distributed along its periphery, is located at one level intermediate between the tank inlet and the openings that are arranged in said first intermediate partition.
  • the communication of the second annular space with the central channel is advantageously ensured by the fact that a spacing is provided between the second inner partition and the first end wall.
  • the inlet orifice tank is formed in the tubular outer wall, close to the first end wall. This orifice thus opens radially into the first annular space.
  • the reservoir is preferably provided with means allowing to fix it on a support.
  • two immersion heaters electrical devices are mounted in the central channel of the heater.
  • the present invention also relates to an installation central heating fluid with heat transfer fluid, comprising a circuit of pipelines in which are connected one or more radiators or convectors, at least one circulation pump, at least one device an expansion unit and at least one heating unit, this installation comprising at least one room thermostat.
  • this installation is connected to at least one heating unit according to the invention, the installation including, in addition, an automated control station adapted to receive the signals of the room thermostats and the or thermostatic probes of the heating unit or units, and order the start and stop of operation of the circulation pumps and the immersion heater (s) of the heating units.
  • the heating system according to the invention can optionally include two or more heating units next the invention, these heating units then being connected in parallel in the circuit.
  • the heat transfer fluid circulating in the installation is preferably of the oil and more particularly a mineral oil especially designed for transferring calories.
  • the heating unit (s) connected to the circuit are preferably capable of heating the heat transfer fluid to a temperature greater than 100 ° C.
  • the installation can be set in such a way the temperature of the coolant (in particular, the oil) is limited at a temperature between 105 ° and 110 ° C, at the exit of the heating units.
  • the coolant in particular, the oil
  • the heating unit consists of a tank comprising a tubular outer wall 1, a first end wall 2 and a second end wall 3.
  • a first annular space 6 is thus located between the wall 1 and the first interior partition 4 and a second space 4 and the second interior partition 5.
  • a central channel 8 is located inside the second internal tubular partition 5.
  • first end wall 2 is in is formed, essentially, by a ring 9 welded between the elements tubular which respectively form the outer wall 1 and the first internal partition 4 and a ring 10 welded between the tubular elements which respectively form the first interior partition 4 and the second interior partition 5.
  • the second end wall is formed, essentially, by a ring 11 welded between the elements tubular which respectively form the outer wall 1 and the first internal partition 4 and a ring 12 welded between the elements tubular which respectively form the first partition 4 and the second interior partition 5.
  • the tank is equipped with an inlet which consists of a pipe 13 welded to the outer wall 1 and opening into the first annular space 6, near the first wall end 2.
  • the tank is also provided with an outlet orifice which opens out of the central channel 8 and which consists of a welded pipe 14 in the ring 12 (which is a constituent element of the second wall end 3).
  • the second interior partition 5 carries three externally rings 15, 16, 17, whose outer diameter is equal (or slightly lower) than the inside diameter of the first inner partition 4.
  • the ring 15, which is located closest to the second end wall 3, is connected to the ring 12 by two fingers-of-glove 18.
  • Two probes thermostatic devices 19 passing through orifices provided for this purpose in the ring 12, and by said fingers-of-glove 18, are mounted in the second annular space 7.
  • the electrical connectors and wires which allow to connect these thermostatic probes 19 to a station of command are not represented.
  • the other two rings 16 and 17 are spaced one from the other and interconnected by means of twelve copper bars 20 regularly spaced from each other.
  • the rings 16 and 17 are each pierced with twelve holes 21 which are angularly offset by relative to bars 20, as can be seen in FIG. 3.
  • Twelve holes 22 are formed in the first partition 4, near the second end wall 3. These holes 22 which are regularly distributed around the perimeter of the first partition tubular interior 4, port the first space ring 6 with the second annular space 7.
  • a ring 23 pierced with eight holes 24 is mounted between the outer wall 1 and the first inner partition 4, at one level intermediate between the inlet pipe 13 and the holes 22 which are arranged in the first inner partition 4. During the operation of the heating unit, this ring 23 pierced with holes 24 regulates the flow of heat transfer fluid which enters through the tubing 13 and which rises towards the holes 22.
  • Two electric immersion heaters 25 are located in the central channel 8. These immersion heaters 25 are fixed in a base 26 which is screwed into the ring 10, a bridge 27 sealing the mounting.
  • Connectors 28 make it possible to connect the immersion heaters 25 to power cables.
  • Shoulders 29, 30 are intended for fixing the unit heating on a suitable support.
  • thermo-plunger or both heaters 25 are operated. Meanwhile, the heat transfer fluid circulates in the unit of heating entering through the entrance 13, going back in the first annular space 6, penetrating through the holes 22 in the second space ring 7, descending into the second annular space 7 and going up the central canal 8 to exit 14.
  • the heat transfer fluid is in direct contact with immersion heaters which carry it to the desired temperature.
  • the coolant is already preheated course of its passage in the first annular space 6 and then especially during its passage in the second annular space 7 in which it comes into contact not only with the second partition intermediate 5 but also with the transfer elements of heat 16, 17 and 20.
  • a heating unit as described is intended to be connected to the piping system of a heating system central.
  • the pipe circuit of such an installation are generally connected several radiators, at least one unit of heating, at least one circulation pump and at least one device expansion.
  • the installation further comprises at least one thermostat room and an automated control station capable of receiving signals from the room thermostats and thermostatic probes of the heating unit (or heating units), and to control the start-up and shutdown of the pump circulation (or circulation pumps) and the immersion heater (s) of the heating unit (or heating units).
  • the heating capacity of a heating unit depends obviously the power of the or immersion heaters mounted in unit.
  • the choice of suitable power immersion heaters allows you to meet a desired heating capacity.
  • the control station of the installation can then be programmed so that, depending on the need for heating, one or two heaters of one or more heating units are
  • the control station is also programmed to that the heating unit (s) can only operate when the or the circulation pumps are working.
  • the heating units according to the invention are very few bulky, are of very simple construction, and allow a great flexibility of operation of the installation in which they are connected.
  • the heat transfer fluid that is circulated in the installation is preferably mineral oil for transferring calories. This allows in particular to heat the heat transfer fluid to a higher temperature at 100 ° C, and it remains possible, without problem, even at high altitude, in mountainous regions.
  • a heating unit according to the invention is a device compact which contains only a small volume of coolant and which, therefore, has a low thermal inertia.
  • radiators or convectors mounted in the installation are of the type with large radiation surface and low internal volume, the installation as a whole will have a low thermal inertia, which is a real advantage.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Tunnel Furnaces (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Central Heating Systems (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Control Of Resistance Heating (AREA)

Claims (21)

  1. Heizeinheit für Wärmetransportflüssigkeit für eine Zentralheizungsanlage,
    bestehend aus einem Behälter, umfassend eine röhrenförmige Außenwand (1), eine erste Endwand (2) und eine zweite Endwand (3), wobei diese Wände (1, 2, 3) einen im wesentlichen zylindrischen Raum begrenzen, eine erste röhrenförmige Innenwand (4) und eine zweite röhrenförmige Innenwand (5), die mit der röhrenförmigen Außenwand (1) im wesentlichen konzentrisch im Behälter eingebaut sind, wobei die zweite Innenwand (5) einen Durchmesser hat, der kleiner ist als der der ersten Innenwand (4), ein erster Ringraum (5) zwischen der röhrenförmigen Außenwand (1) und der der ersten Innenwand (4) angeordnet ist, ein zweiter Ringraum (7) zwischen der ersten Innenwand (4) und der zweiten Innenwand (5) angeordnet ist, ein zentraler Kanal (8) innerhalb der zweiten Innenwand (5) angeordnet ist, der zweite Ringraum (7) in der Nähe der ersten Endwand (2) mit dem zentralen Kanal (8) verbunden ist und in der Nähe der zweiten Endwand (3) mit dem ersten Ringraum (6) verbunden ist, der Behälter mit einer Einlaßöffnung (13) versehen ist, die in der Nähe der ersten Endwand (2) in den ersten Ringraum (6) einmündet, und mit einer Öffnung (14), in der zweiten Endwand (3), die vom zentralen Kanal (8) einmündet, mindestens ein elektrischer Tauchsieder (25) im zentralen Kanal (8) angeordnet ist, mindestens eine thermostatische Sonde (19) im Behälter angeordnet ist.
  2. Heizeinheit nach Anspruch 1, dadurch gekennzeichnet, daß die röhrenförmige Außenwand (1), die erste und zweite Endwand (2, 3) und die erste Innenwand (4) aus Stahl bestehen.
  3. Heizeinheit nach einem der obigen Ansprüche, dadurch gekennzeichnet, daß die zweite Innenwand (5) aus Stahl besteht.
  4. Heizeinheit nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die zweite Innenwand (5) aus Kupfer besteht.
  5. Heizeinheit nach einem der obigen Ansprüche, dadurch gekennzeichnet, daß sie Wärmeübertragungselemente umfaßt, die im zweiten Ringraum (7) angeordnet sind und mit der zweiten Innenwand (5) fest verbunden sind.
  6. Heizeinheit nach Anspruch 5, dadurch gekennzeichnet, daß diese Wärmeübertragungselemente aus zwei Ringen (16, 17) bestehen, die voneinander beabstandet sind, mit der zweiten Innenwand (5) fest verbunden sind und rechtwinklig zu deren Achse angeordnet sind, wobei diese zwei Ringe (16, 17) von mehreren Löchern (21) durchbohrt sind und durch mehrere Metallstangen (20) miteinander verbunden sind, die voneinander beabstandet sind.
  7. Heizeinheit nach Anspruch 6, dadurch gekennzeichnet, daß diese Metallstangen (20) eine gerippte Außenfläche aufweisen.
  8. Heizeinheit nach einem der Ansprüche 6 und 7, dadurch gekennzeichnet, daß die zwei Ringe (16, 17), die mit der zweiten Innenwand (5) fest verbunden sind, aus Stahl bestehen.
  9. Heizeinheit nach einem der Ansprüche 6 und 7, dadurch gekennzeichnet, daß die zwei Ringe (16, 17), die mit der zweiten Innenwand (5) fest verbunden sind, aus Kupfer bestehen.
  10. Heizeinheit nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, daß die Metallstangen (20) aus Kupfer bestehen.
  11. Heizeinheit nach einem der obigen Ansprüche, dadurch gekennzeichnet, daß sie mindestens eine thermostatische Sonde (19) umfaßt, die im zweiten Ringraum (7) angeordnet ist.
  12. Heizeinheit nach einem der obigen Ansprüche, dadurch gekennzeichnet, daß mehrere Öffnungen (22), die auf dem Umfang der ersten Innenwand (4) verteilt sind, den ersten Ringraum (6) und den zweiten Ringraum (7) in der Nähe der zweiten Endwand (3) verbinden.
  13. Heizeinheit nach Anspruch 12, dadurch gekennzeichnet, daß rechtwinklig zur Achse des Behälters ein Ring (23) zwischen der röhrenförmigen Außenwand (1) und der ersten Innenwand (4) angeordnet ist, wobei dieser Ring (23), der von mehreren Löchern (24) durchbohrt ist, die auf seinem Umfang verteilt sind, auf einem Zwischenniveau zwischen der Einlaßöffnung (13) des Behälters und den Öffnungen (22) angeordnet ist, die in der ersten Innenwand (4) vorgesehen sind.
  14. Heizeinheit nach einem der obigen Ansprüche, dadurch gekennzeichnet, daß zwischen der zweiten Innenwand (5) und der ersten Endwand (2) ein Raum vorgesehen ist, um den zweiten Ringraum (7) mit dem zentralen Kanal (8) zu verbinden.
  15. Heizeinheit nach einem der obigen Ansprüche, dadurch gekennzeichnet, daß die Einlaßöffnung (13) des Behälters in der röhrenförmige Außenwand (1) vorgesehen ist.
  16. Heizeinheit nach einem der obigen Ansprüche, dadurch gekennzeichnet, daß der Behälter mit Mitteln (29, 30) versehen ist, die seine Befestigung an einem Träger erlauben.
  17. Heizeinheit nach einem der obigen Ansprüche, dadurch gekennzeichnet, daß zwei elektrische Tauchsieder (25) im zentralen Kanal (8) angeordnet sind.
  18. Zentralheizungsanlage für Wärmetransportflüssigkeit, umfassend einen Rohrleitungskreislauf, an dem eine oder mehrere Heizkörper oder Konvektoren angeschlossen sind, mindestens eine Umlaufpumpe, mindestens eine Expansionsvorrichtung und mindestens eine Heizeinheit, wobei die Anlage mindestens ein Umgebungsthermostat umfaßt,
    dadurch gekennzeichnet, daß mindestens eine Heizeinheit nach einem der obigen Ansprüche an diesen Kreislauf angeschlossen ist, die Anlage ein automatisches Steuergerät umfaßt, das geeignet ist, die Signale des oder der Umgebungsthermostate(s) und der thermostatischen Sonde(n) (19) der Heizeinheit(en) zu empfangen und die Ein- oder Abschaltung der Umlaufpumpe(n) und des oder der Tauschsieder(s) der Heizeinheit(en) zu steuern.
  19. Zentralheizungsanlage nach Anspruch 18, dadurch gekennzeichnet, daß zwei oder mehr Heizeinheiten nach einem der Ansprüche 1 bis 17 in diesem Kreislauf parallelgeschaltet sind.
  20. Zentralheizungsanlage nach einem der Ansprüche 18 und 19, dadurch gekennzeichnet, daß die Wärmetransportflüssigkeit Öl ist.
  21. Zentralheizungsanlage nach Anspruch 20, dadurch gekennzeichnet, daß die Heizeinheit(en) geeignet sind, eine Wärmetransportflüssigkeit auf eine Temperatur von mehr als 100 °C zu erwärmen.
EP01937884A 2000-06-09 2001-05-17 Heizeinheit für wärmetransportflüssigkeit für eine zentralheizungsanlage Expired - Lifetime EP1290380B8 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE200000374 2000-06-09
BE2000/0374A BE1013549A3 (fr) 2000-06-09 2000-06-09 Unite de chauffage de fluide caloporteur pour installation de chauffage central.
PCT/BE2001/000087 WO2001094860A1 (fr) 2000-06-09 2001-05-17 Unite de chauffage de fluide caloporteur pour installation de chauffage central

Publications (3)

Publication Number Publication Date
EP1290380A1 EP1290380A1 (de) 2003-03-12
EP1290380B1 true EP1290380B1 (de) 2005-11-02
EP1290380B8 EP1290380B8 (de) 2006-05-17

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EP01937884A Expired - Lifetime EP1290380B8 (de) 2000-06-09 2001-05-17 Heizeinheit für wärmetransportflüssigkeit für eine zentralheizungsanlage

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Country Link
US (1) US6736329B2 (de)
EP (1) EP1290380B8 (de)
AT (1) ATE308726T1 (de)
AU (1) AU2001263673A1 (de)
BE (1) BE1013549A3 (de)
CA (1) CA2411703A1 (de)
DE (1) DE60114615T2 (de)
WO (1) WO2001094860A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100398900C (zh) * 2005-04-30 2008-07-02 中国科学院等离子体物理研究所 基于多层管道结构获得高温热流体的方法
JP5610679B2 (ja) * 2008-09-01 2014-10-22 栗田工業株式会社 液体加熱器および液体加熱方法
US8107802B2 (en) * 2009-06-05 2012-01-31 Jeremy Lee Hollis Tankless electric water heater with efficient thermal transfer
US9010318B2 (en) 2009-09-04 2015-04-21 Wisconsin Alumni Research Foundation Extended-range heat transfer fluid using variable composition
GB2592026B (en) * 2020-02-12 2023-12-06 Singh Nagi Jaskiran An electric boiler

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR990616A (fr) * 1949-07-15 1951-09-24 Elmeg Distributeur d'eau chaude
US3558852A (en) * 1968-06-20 1971-01-26 Taylor Diving & Salvage Co Electric heating apparatus for supplying heated fluid to a diver{3 s clothing
DE7039478U (de) * 1969-10-28 1971-09-09 The Singer Co Wärmepumpenanlage
GB1462187A (en) * 1973-09-29 1977-01-19 Horne Eng Co Ltd Fluid supply systems
US3968346A (en) * 1973-06-01 1976-07-06 Cooksley Ralph D Method and apparatus for electrically heating a fluid
US3949565A (en) * 1974-08-09 1976-04-13 Fischer & Porter Co. Liquified gas evaporator
US4531572A (en) * 1980-09-29 1985-07-30 Molitor Victor D Method of and unit for recovery of waste energy
US4469935A (en) * 1982-06-03 1984-09-04 Francois Candela Combined domestic use and space heating electric water heater

Also Published As

Publication number Publication date
US6736329B2 (en) 2004-05-18
DE60114615D1 (de) 2005-12-08
AU2001263673A1 (en) 2001-12-17
ATE308726T1 (de) 2005-11-15
CA2411703A1 (fr) 2001-12-13
WO2001094860A1 (fr) 2001-12-13
EP1290380A1 (de) 2003-03-12
DE60114615T2 (de) 2006-08-10
BE1013549A3 (fr) 2002-03-05
EP1290380B8 (de) 2006-05-17
US20030164402A1 (en) 2003-09-04

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