EP1574799A1 - Plate heat exchanger with indirect heating - Google Patents

Plate heat exchanger with indirect heating Download PDF

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Publication number
EP1574799A1
EP1574799A1 EP04005542A EP04005542A EP1574799A1 EP 1574799 A1 EP1574799 A1 EP 1574799A1 EP 04005542 A EP04005542 A EP 04005542A EP 04005542 A EP04005542 A EP 04005542A EP 1574799 A1 EP1574799 A1 EP 1574799A1
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EP
European Patent Office
Prior art keywords
heating
plate
heating element
plates
channels
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Granted
Application number
EP04005542A
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German (de)
French (fr)
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EP1574799B1 (en
Inventor
Vladan Prof. Dr. Petrovic
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JOCO D.O.O.
PHOENIX METALL GMBH
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Krohn Hagen Dipl Ing agr
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Priority to EP04005542A priority Critical patent/EP1574799B1/en
Priority to DE502004006995T priority patent/DE502004006995D1/en
Priority to AT04005542T priority patent/ATE393905T1/en
Publication of EP1574799A1 publication Critical patent/EP1574799A1/en
Application granted granted Critical
Publication of EP1574799B1 publication Critical patent/EP1574799B1/en
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    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/0226—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with an intermediate heat-transfer medium, e.g. thermosiphon radiators

Definitions

  • the invention relates to a new type of plate heater, which is filled with liquid, wherein the heat from the heating circuit via a heating element indirectly to the filling liquid in Plate radiator is transmitted.
  • a filling liquid is the chemically treated water with the addition of various Inhibitors used, whereby the mixed liquid chemically resistant to corrosion is.
  • the operating pressure of the heating system is limited only to the heating element and the pressure in the rest radiator remains atmospheric. This has the advantage that the heating plate made of thin sheet metal (0.5 to 0.6 mm) can be made, bringing the price level of Panel radiator is significantly reduced.
  • the heating element is a very efficient heat exchanger made in two ways can be :
  • a piece of sheet metal is made, with the dimensions 85mm wide, 1.5 - 2mm thick and a length that is about 100 mm shorter than the radiator.
  • the channels are impressed, the depth of which depends on the heat output are.
  • Two channels each are by means of embossed sheets at the end of the heating element connected with each other.
  • the embossed bows have the same depth as the impressions along the heating element.
  • the return flow in the heating element is also composed of two partial streams.
  • the heating element is composed of two completely indentician shells, the are connected to each other by the spot welding (the spot welding takes place between the channels). The two shells become watertight with each other through the weld connected.
  • the surface of the heating element is ribbed with wart-shaped needle ribs.
  • the needle ribs can be attached to the surface of the heating element by spot welding by means of an electrowelding device or automatically with a tool specially made for this purpose.
  • By tapping the outer surface of the heating element very high external heat transfer coefficients are achieved (order of 2000 W / m 2 K).
  • Due to the correct design of the flow velocity in the flow channel of the Heating element (around 1m / s) can have high internal heat transfer coefficients (WÜK) in the Heating element can be achieved.
  • the two (the inner and the outer WÜK) make one high heat transfer coefficient of the heating element.
  • the other, conventional way to design the heating element is in the way given that a U-shaped tube is used, the surface with ribs of thin Sheet metal (about 0.5 mm) is ribbed. This can also be very high heat transfer coefficients be achieved. This solution is in any case associated with higher production costs.
  • the feature of this invention is that the heat transfer between the heating element and the filling liquid, caused by the gravity movement of Med jossstechnik over the height of the heating element takes place.
  • the heat transfer between the filling liquid and the Outer wall of the heating plate also takes place by the gravity movement of the filling liquid along the vertical wall of the heating plate instead.
  • the further feature of this invention is that the required circulation of the Greetrachlor caused by the gravity movement in the hot plate.
  • the Gravity movement is due to the density difference of the filling liquid in the ascending and the sloping column. Put the ascending and the falling pillar the embossed channels in the heating plate.
  • the feature of this invention is also that the heating element only under the rising Columns is attached, that is, it is heated only the zone of ascending movement.
  • the Zone under the sloping columns is not heated. This results in the requirement that the Total length of the heating element is shorter than the heating plate. This difference in length is about 100mm. It can be concluded that the "sloping zone" in the hot plate very is short and as short as it is required to generate the gravity motion can.
  • the preparation of a hot plate is done in such a way that the shells on classic Art be made, but with the difference that at the foot of the shell a channel is provided, in which the heating element is installed.
  • Two cups are going through first the spot welding fastened together and then then the edges of the Hot plate sealed watertight by seam welding. Be in the cups provided during the preparation of the outlet openings, through which the pros and Return pipes are passed and welded watertight to the shell.
  • a panel radiator from one, two or three hot plates are assembled.
  • the outer shells of the heating plate of 0.6mm provided strong sheet, since the pressure in the heating element identical to the pressure of the Heating system is.
  • the convective surfaces are made of 0.5 mm thick sheet metal.
  • the Heating plates of the usual plate radiators are made of 1.25 mm thick sheet metal.
  • the feature of this invention is also that the hot plates with chemically treated Are filled with water, whereby the susceptibility to corrosion is significantly reduced. You can do that Also fill heating plates with other heat carrier fluids, which corrode the corrosion completely exclude, but this raises the cost issue.
  • heating plates from aluminum sheet, as well as from VA sheet metal, because they are depressurized.
  • the plate heater is designed in such a way that at the foot of the two shells 1, a horizontal square channel is provided, in which an efficient heating element 2 is installed, which indirectly transfers the heat from the heating circuit to the filling liquid in the heating plate.
  • the vertically embossed channels 3 in the heating plate are ascending, and the channels 4 descending.
  • the filling liquid in the heating plate circulates through gravity, which is set by the density difference in the rising and falling channel in steady state operation.
  • the positioning of the heating element 2 is clearly indicated in FIGS. 1A, 1B and 1C . From Fig. 1C , the positioning of the forward and return port 5 and 6 can be seen.
  • Fig. 1C the positioning of the forward and return port 5 and 6 can be seen.
  • the heating element 2 is dargestelt, it can be seen that the heating element is made of two sheet metal plates in the way that the length in the sheet metal plate four channels 7 are embossed and that two plates are sealed together by seam welding watertight.
  • the indentations of the two plates form a channel with a circular cross-section, through which the heating water flows from the heating system.
  • Two channels are connected to each other by means of the embossed sheets 8 .
  • the two channels at the foot of the heating element are connected by means of a pipe section 5 to the heating flow and the other two channels by means of the pipe section 6 to the heating return.
  • Fig. 2B and Fig. 2C the plan view and side view of the heating element is shown enlarged.
  • the surface of the heating element is provided with needle ribs 16 which serve to increase the heat transfer coefficients on the side of gravity flow.
  • Fig. 3 the connection of the individual heating plates 1 is shown as a finished radiator.
  • the connection of the heating plates by means of the pipe segments 5, 6, 9, 10 and 11.
  • the pipe segments 5 and 6 are welded together watertight by means of a T-piece 13 with each other.
  • the tees 13 are provided with threaded connection and serve as Bankungsvor- and return port.
  • the pipe segments 9, 10 and 11 are also welded together by means of a T-piece 12 .
  • the tees 12 are provided with screw plugs that serve to fill, vent and drain the radiator.
  • a frame In order to conceal the heating plate, because of the remaining embossing and around the seam welding, a frame, Fig.
  • 3D -14 made of L-profile with the dimension 17x20x 0.8 mm, which is attached to the front of the heating plate, so that no Aufsteckgitter or lateral Aufsteckdeckel more, as in conventional radiators are required.
  • the spacing of the heating plates is 56 mm, which is perfect for a good convective air flow.
  • At the rear of a convective surface 15 is attached, which is made of sheet 0.5 mm thick, made. The task of the convective surface is to settle the radiation loss.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Heating Systems (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Abstract

The radiator has one or more heating panels (1). A heating element (2) is built into the sole of the foot of the heating panel. This consists of two plates with circular channels stamped into them. The two plates are connected by a spot welding, and are made watertight by a Weld seam round the outer edge. The channels form a circular cross-section through which the heating water flows, and passes its heat to the filling fluid.

Description

Die Erfindung betrifft eine neue Art von Plattenheizkörper, der mit Flüssigkeit befüllt wird, wobei die Wärme vom Heizungskreislauf über ein Heizelement indirekt an die Füllflüssigkeit im Plattenheizkörper übertragen wird.The invention relates to a new type of plate heater, which is filled with liquid, wherein the heat from the heating circuit via a heating element indirectly to the filling liquid in Plate radiator is transmitted.

Als Füllflüssigkeit wird das chemisch aufbereitete Wasser mit der Zugabe von verschiedenen Inhibitoren eingesetzt, wodurch die Mischflüssigkeit chemisch gegen die Korrosion beständig ist.As a filling liquid is the chemically treated water with the addition of various Inhibitors used, whereby the mixed liquid chemically resistant to corrosion is.

Der Betriebsdruck der Heizungsanlage wird nur auf das Heizelement beschränkt und der Druck im übrigen Heizkörper bleibt atmosphärisch. Dies bringt den Vorteil mit sich, daß die Heizplatte aus dünnem Blech (0.5 bis 0.6 mm) angfertigt werden kann, womit das Preisniveau des Plattenheizkörpers erheblich reduziert wird.The operating pressure of the heating system is limited only to the heating element and the pressure in the rest radiator remains atmospheric. This has the advantage that the heating plate made of thin sheet metal (0.5 to 0.6 mm) can be made, bringing the price level of Panel radiator is significantly reduced.

Das Heizelement ist ein sehr effizienter Wärmetauscher der auf zweierlei Weise angefertigt werden kann :The heating element is a very efficient heat exchanger made in two ways can be :

Zum einen wird ein Blechstück angefertigt, mit den Abmessungen 85mm breit, 1,5 - 2mm dick und einer Länge ,die um ca 100 mm kürzer ist, als der Heizkörper.First, a piece of sheet metal is made, with the dimensions 85mm wide, 1.5 - 2mm thick and a length that is about 100 mm shorter than the radiator.

Auf dem Blechstück sind die Kanäle eingeprägt, deren Tiefe von der Wärmeleistung abhängig sind. Jeweils zwei Kanäle sind mittels der eingeprägten Bögen am Ende des Heizelementes miteinander verbunden. Die eingeprägten Bögen haben die gleiche Tiefe wie die Einprägungen längs des Heizelementes. Somit erreicht man, daß sich der Vorlaufstrom auf zwei Kanäle verteilt, die zwar unterschiedliche Längen haben, aber mit dem gleichen Abstand voneinander eingeprägt sind.On the piece of sheet metal, the channels are impressed, the depth of which depends on the heat output are. Two channels each are by means of embossed sheets at the end of the heating element connected with each other. The embossed bows have the same depth as the impressions along the heating element. Thus, one achieves that the flow stream to two channels Although they have different lengths, but with the same distance from each other are impressed.

Der Rücklaufstrom im Heizelement setzt sich ebenfalls aus zwei Teilströmen zusammen. Durch die gleichmäßige Stromverteilung über die ganze Breite des Heizelementes ist gewährleistet, daß die Wärmeübertragung vom Heizelement an die umlaufende Flüßigkeit effizienter wird.The return flow in the heating element is also composed of two partial streams. By the uniform current distribution over the entire width of the heating element is ensured that the heat transfer from the heating element to the circulating liquid becomes more efficient.

Das Heizelement setzt sich aus zwei vollkommen indentischen Schalen zusammen, die miteinander durch das Punktschweißen verbunden sind (das Punktschweißen erfolgt zwischen den Kanälen). Die beiden Schalen werden wasserdicht miteinander durch die Schweißnaht verbunden.The heating element is composed of two completely indentischen shells, the are connected to each other by the spot welding (the spot welding takes place between the channels). The two shells become watertight with each other through the weld connected.

An einer der beiden Schalen sind zwei Öffnungen vorgesehen, an denen jeweils ein Rohrstück angeschweißt ist. Diese Rohrstücke werden beim Zusammenbau der Heizplatte mit der Schale der Heizplatte wasserdicht miteinander verschweißt.On one of the two shells two openings are provided, to each of which a piece of pipe is welded. These pieces of pipe are used in assembling the heating plate with the shell the heating plate welded together watertight.

Die Oberfläche des Heizelementes ist mit warzenförmigen Nadelrippen berippt. Die Nadelrippen können mittels eines Elektroschweissgerätes durch das punktförmige Schweißen an der Oberfläche des Heizelementes oder automatisch, mit einem speziell zu diesem Zweck angefertigten Werkzeug, angebracht werden. Durch das Berippen der Aussenoberfläche des Heizelementes werden sehr hohe äussere Wärmeübergangskoeffizienten erreicht (Größenordnung um 2000 W/m2K).The surface of the heating element is ribbed with wart-shaped needle ribs. The needle ribs can be attached to the surface of the heating element by spot welding by means of an electrowelding device or automatically with a tool specially made for this purpose. By tapping the outer surface of the heating element very high external heat transfer coefficients are achieved (order of 2000 W / m 2 K).

Durch die richtige Auslegung der Strömungsgeschwindigkeit im Strömungskanal des Heizelementes (um 1m/s) können hohe innere Wärmeübergangskoeffizienten (WÜK) im Heizelement erreicht werden. Die Beiden (der innere und der äussere WÜK) ergeben einen hohen Wärmedurchgangskoeffizienten des Heizelementes.Due to the correct design of the flow velocity in the flow channel of the Heating element (around 1m / s) can have high internal heat transfer coefficients (WÜK) in the Heating element can be achieved. The two (the inner and the outer WÜK) make one high heat transfer coefficient of the heating element.

Die andere, herkömmliche Möglichkeit, das Heizelement zu gestalten, ist in der Weise gegeben, daß ein U-förmiges Rohr verwendet wird, dessen Oberfläche mit Rippen aus dünnem Blech (ca. 0,5 mm) berippt wird. Damit können auch sehr hohe Wärmedurchgangskoeffizienten erreicht werden. Diese Lösung ist in jedem Fall mit höheren Anfertigungskosten verbunden.The other, conventional way to design the heating element is in the way given that a U-shaped tube is used, the surface with ribs of thin Sheet metal (about 0.5 mm) is ribbed. This can also be very high heat transfer coefficients be achieved. This solution is in any case associated with higher production costs.

Das Merkmal dieser Erfindung ist, daß die Wärmeübertragung zwischen dem Heizelement und der Füllflüssigkeit, verursacht durch die Schwerkraftbewegung der Füllfüssigkeit über die Höhe des Heizelementes, stattfindet. Die Wärmeübertragung zwischen der Füllflüssigkeit und der Aussenwand der Heizplatte findet ebenfalls durch die Schwerkraftbewegung der Füllflüssigkeit entlang der senkrechten Wand der Heizplatte statt. Um den Dichteunterschied der aufsteigenden und der abfallenden Strömung in der Heizplatte herzustellen, wird das Heizelement in den dafür vorgesehen Fußkanal der Heizplatte eingebaut.The feature of this invention is that the heat transfer between the heating element and the filling liquid, caused by the gravity movement of Füllfüssigkeit over the height of the heating element takes place. The heat transfer between the filling liquid and the Outer wall of the heating plate also takes place by the gravity movement of the filling liquid along the vertical wall of the heating plate instead. To the density difference of Ascending and the falling flow in the hot plate, the will Heating element installed in the designated foot channel of the heating plate.

Das weitere Merkmal dieser Erfindung liegt darin, daß die erforderliche Zirkulation der Füllflüßigkeit durch die Schwerkraftbewegung in der Heizplatte hervorgerufen wird. Die Schwerkraftbewegung wird durch den Dichteunterschied der Füllflüßigkeit in der aufsteigenden und der abfallenden Säule hervorgerufen. Die aufsteigende und die abfallende Säule stellen die eingeprägten Kanäle in der Heizplatte dar.The further feature of this invention is that the required circulation of the Füllflüßigkeit caused by the gravity movement in the hot plate. The Gravity movement is due to the density difference of the filling liquid in the ascending and the sloping column. Put the ascending and the falling pillar the embossed channels in the heating plate.

Das Merkmal dieser Erfindung ist auch, daß das Heizelement nur unter den aufsteigenden Säulen angebracht wird, d.h es wird nur die Zone der aufsteigenden Bewegung geheizt. Die Zone unter den abfallenden Säulen wird nicht geheizt. Damit ergibt sich die Forderung, daß die Gesamtlänge des Heizelementes kürzer als die Heizplatte ist. Dieser Längenunterschied beträgt ca 100mm. Daraus läßt sich schließen, daß die "abfallende Zone" in der Heizplatte sehr kurz ist und zwar, so kurz wie es erforderlich ist um die Schwerkraftbewegung erzeugen zu können.The feature of this invention is also that the heating element only under the rising Columns is attached, that is, it is heated only the zone of ascending movement. The Zone under the sloping columns is not heated. This results in the requirement that the Total length of the heating element is shorter than the heating plate. This difference in length is about 100mm. It can be concluded that the "sloping zone" in the hot plate very is short and as short as it is required to generate the gravity motion can.

Die Anfertigung einer Heizplatte erfolgt auf die Weise, daß zuerst die Schalen auf klassische Art angefertigt werden, jedoch mit dem Unterschied, daß am Fuß der Schale ein Kanal vorgesehen ist, in dem das Heizelement eingebaut wird. Zwei Schalen werden zuerst durch das Punktschweißen miteinander befestigt und anschliessend werden dann die Ränder der Heizplatte durch das Nahtschweißen wasserdicht verschlossen. In den Schalen werden während der Anfertigung die Austrittsöffnungen vorgesehen, durch welche die Vor-und Rücklaufrohre hindurchgeführt und mit der Schale wasserdicht verschweißt werden. Je nach dem, welche Wärmeleistung eines Heizkörpers benötigt wird, kann ein Plattenheizkörper aus einer, zwei oder drei Heizplatten zusammengesetzt werden.The preparation of a hot plate is done in such a way that the shells on classic Art be made, but with the difference that at the foot of the shell a channel is provided, in which the heating element is installed. Two cups are going through first the spot welding fastened together and then then the edges of the Hot plate sealed watertight by seam welding. Be in the cups provided during the preparation of the outlet openings, through which the pros and Return pipes are passed and welded watertight to the shell. Depending on The, which heat output of a radiator is needed, a panel radiator from one, two or three hot plates are assembled.

In jeder Heizplatte sind vier Öffnungen  15 mm vorgesehen, und zwar am unteren Rand eine Entleerungsöffnung und am oberen Rand eine Befüllungs-und Belüftungsöffnung.
Die Berechnung zeigt, daß die gesamte Wärmeabgabe der Vorderseite und Rückseite (Frontseite zum Raum und Rückseite zur Wand ) sich zusammensetzt aus:

  • Wärmeabgabe durch die Strahlung ca 60%
  • Wärmeabgabe durch die Konvektion ca 40%
Aus dieser Tatsache folgt, daß wenn zwei Heizplatten bei einem Heizkörper gegeneinander gestellt werden, der Strahlungsanteil verloren geht, da sich die Heizplatten gegenseitig bestrahlen und gleichzeitig die Strahlen absorbieren. Aus diesem Grund wird es erforderlich sein, an der Innenseite der Heizplatten, die gegeneinander aufgestellt werden, die konvektiven Flächen vorzusehen, um den Verlust des Strahlungsanteils auszugleichen. Das ist bei der Plattenheizkörperproduktion üblich und diese konvektiven Flächen werden üblicherweise aus Blech mit einer Stärke von 0,5mm, in Trapezform,_angefertigt In each hotplate four openings  15 mm are provided, namely at the bottom of a discharge opening and at the top of a filling and ventilation opening.
The calculation shows that the total heat output of the front and back (front to room and back to wall) is composed of:
  • Heat emission by the radiation about 60%
  • Heat release by convection approx. 40%
From this fact follows that when two heating plates are placed against each other in a radiator, the proportion of radiation is lost because the heating plates irradiate each other while absorbing the rays. For this reason, it will be necessary to provide on the inside of the heating plates, which are placed against each other, the convective surfaces to compensate for the loss of the radiation component. This is common in plate heater production, and these convective surfaces are typically made of sheet metal 0.5mm thick, in trapezoidal shape

Gemäß der vorliegenden Erfindung werden die Aussenschalen der Heizplatte aus 0,6mm starkem Blech vorgesehen, da der Druck im Heizelement identisch mit dem Druck der Heizungsanlage ist.According to the present invention, the outer shells of the heating plate of 0.6mm provided strong sheet, since the pressure in the heating element identical to the pressure of the Heating system is.

Üblicherweise werden die konvektiven Flächen aus 0,5 mm starkem Blech angefertigt. Die Heizplatten der üblichen Plattenheizkörper werden aus 1,25 mm starkem Blech angefertigt.Usually, the convective surfaces are made of 0.5 mm thick sheet metal. The Heating plates of the usual plate radiators are made of 1.25 mm thick sheet metal.

Auf Grund der durchgeführten Analyse liegt es nah, den Kostenvergleich des Stahlblechverbrauches für die Plattenheizkörper gemäß dieser Erfindung und der üblichen Plattenheizkörper wie folgt anzustellen :

  • Nehmen wir z.B. einen Plattenheizkörper aus der üblichen Produktion (z.B. Hersteller Firma "Buderus") mit folgenden Charakteristiken:
  • Typ PKPK........................... (zwei Heizplatten+zwei konvektive Flächen)
  • Baulänge 960 mm
  • Bauhöhe 600 mm
  • Gesamte Heizfläche 4,169 m2 (laut Prospektunterlagen)
  • Gesamtgewicht 33,96 kg
  • Wärmeleistung 1833 Watt (bei Raumtemperaturen 24°C)
  • Gegenüber dieser Plattenheizkörper hat der Plattenheizkörper gemäß dieser Erfindung folgende Charakteristiken:
  • Baulänge 960 mm
  • Bauhöhe 600 mm
    • Gesamtheizfläche:
  • Wärmeleistung: 1833 Watt (bei Raumtemperatur 22°C)
  • Gesamtgewicht: 22,84 kg
    •  Das Gesamtgewicht setzt sich, wie folgt zusammen:
    • 2,304 m2 (2 Heizplatten), 0,6 mm dick   10,78 kg
    • 2 Stück konvektive Flächen 0,5 mm dick   6,98 kg
    • 2 Heizelemente   3,00 kg
    • Abdeckprofile, Haltelaschen, Anschlüße   2,08 kg
    • Insgesamt:   22,84 kg
    On the basis of the analysis carried out, it makes sense to make the cost comparison of steel sheet consumption for the panel radiators according to this invention and the usual panel radiators as follows:
  • Take for example a panel radiator from the usual production (eg manufacturer company "Buderus") with the following characteristics:
  • Type PKPK ........................... (two heating plates + two convective surfaces)
  • Overall length 960 mm
  • Construction height 600 mm
  • Total heating surface 4,169 m 2 (according to the prospectus documents)
  • Total weight 33.96 kg
  • Heat output 1833 Watt (at room temperature 24 ° C)
  • Compared to these panel radiators, the panel radiator according to this invention has the following characteristics:
  • Overall length 960 mm
  • Construction height 600 mm
    • Gesamtheizfläche:
  • Thermal output: 1833 watts (at room temperature 22 ° C)
  • Total weight: 22.84 kg
    • The total weight is composed as follows:
    • 2.304 m 2 (2 hotplates), 0.6 mm thick 10.78 kg
    • 2 pieces of convective surfaces 0.5 mm thick 6.98 kg
    • 2 heating elements 3.00 kg
    • Cover profiles, retaining tabs, 2.08 kg connections
    • Total: 22.84 kg

    Daraus läßt sich schließen, daß mit Plattenheizkörpern gemäß dieser Erfindung wesentliche Erspamisse an Stahlblech erreicht werden können. It can be concluded that with plate radiators according to this invention essential Spurs on steel sheet can be achieved.

    Geht man von einer jährlichen Plattenheizkörperproduktion von 500 000 Stück aus, läßt es sich leicht ausrechnen, daß man nur am Materialaufwand an Stahlblech 5560 Tonnen spart.Assuming an annual plate heater production of 500 000 pieces, it can be easily calculate that you only save on the cost of steel sheet steel 5560 tons.

    Das Merkmal dieser Erfindung ist auch, daß die Heizplatten mit chemisch aufbereitetem Wasser befüllt werden, womit die Korrosionsanfälligkeit wesentlich reduziert wird. Man kann die Heizplatten auch mit anderen Wärmeträgerflüßigkeiten befüllen, welche die Korrosion vollkommen ausschließen, dabei stellt sich jedoch die Kostenfrage.The feature of this invention is also that the hot plates with chemically treated Are filled with water, whereby the susceptibility to corrosion is significantly reduced. You can do that Also fill heating plates with other heat carrier fluids, which corrode the corrosion completely exclude, but this raises the cost issue.

    Es besteht die Möglichkeit die Heizplatten aus Alu-Blech, sowie aus VA - Blech anzufertigen, da sie drucklos sind.It is possible to make the heating plates from aluminum sheet, as well as from VA sheet metal, because they are depressurized.

    Besonders ist zu erwähnen, daß diese Lösung die Möglichkeit bietet, die Plattenheizkörper als Motivheizkörper zu gestalten, in der Weise, daß die Frontseite aus Blech (0,8 mm dick) angefertigt wird, wobei auf der Vorderseite verschiedene Motive angebracht werden können.It should be mentioned in particular that this solution offers the possibility of the plate radiator as To design a motif radiator in such a way that the front side is made of sheet metal (0.8 mm thick) is made, with different motifs can be mounted on the front.

    Die Erfindung ist in den Zeichnungen beispielweise veranschaulicht. Dabei zeigen :

  • Fig.1 eine Prinzipskizze des erfindungsgemässen Plattenheizkörper mit der Seitenansicht
  • Fig. 1A zur Verdeutlichung der Fig. 1
  • Fig. 1B zur Verdeutlichung der Fig. 1
  • Fig. 1C zur Verdeutlichung der Fig. 1
  • Fig.2 eine Prinzipskizze des Heizelementes mit eingeprägten Kanälen, die Anordnung der Nadelrippen, sowie den Vor-und Rücklaufanschluß.
  • Fig. 2A zur Verdeutlichung der Fig. 2
  • Fig. 2B zur Verdeutlichung der Fig. 2
  • Fig. 2C zur Verdeutlichung der Fig. 2
  • Fig.3 die Verbindung der Wärmeheizplatten mit Füll-und Entleerungsventil
  • Fig. 3A zur Verdeutlichung der Fig. 3
  • Fig. 3B zur Verdeutlichung der Fig. 3
  • Fig. 3C zur Verdeutlichung der Fig. 3
  • Fig. 3D zur Verdeutlichung der Fig. 3
  • Fig. 3E zur Verdeutlichung der Fig. 3
    • The invention is illustrated by way of example in the drawings. Showing:
  • 1 is a schematic diagram of the inventive panel radiator with the side view
  • Fig. 1A to illustrate the Fig. 1
  • Fig. 1B to illustrate the Fig. 1
  • Fig. 1C to illustrate the Fig. 1
  • A schematic diagram of the heating element with embossed channels, the arrangement of the needle ribs, as well as the forward and return port.
  • Fig. 2A to illustrate the Fig. 2nd
  • 2B for clarification of FIG. 2
  • 2C to illustrate the Fig. 2nd
  • 3 shows the connection of the heating plates with filling and emptying valve
  • 3A to illustrate the Fig. 3rd
  • 3B to illustrate the Fig. 3rd
  • 3C to illustrate the Fig. 3rd
  • FIG. 3D for clarification of FIG. 3
  • 3E to illustrate the Fig. 3rd

    • Gemäß Fig. 1 ist der Plattenheizkörper auf die Weise konzipiert, daß am Fuße der beiden Schalen 1 ein horizontaler viereckiger Kanal vorgesehen ist, in dem ein effizientes Heizelement 2 eingebaut wird, das indirekt die Wärme vom Heizungskreislauf auf die Füllflüssigkeit in der Heizplatte überträgt. Die senkrecht eingeprägten Kanäle 3 in der Heizplatte sind aufsteigend, und die Kanäle 4 absteigend. Die Füllflüssigkeit in der Heizplatte zirkuliert durch die Schwerkraft, die sich durch den Dichteunterschied im aufsteigenden und abfallenden Kanal im stationären Betrieb einstellt.
    In den Fig. 1A, Fig 1B und Fig 1C ist deutlich die Positionierung des Heizelementes 2 angegeben. Aus der Fig. 1C ist die Positionierung des Vor -und Rücklaufanschlußes 5 und 6 ersichtlich.
    In Fig. 2 ist das Heizelement 2 dargestelt, wobei man erkennt, daß das Heizelement aus zwei Blechplatten auf die Weise angefertigt wird, daß der Länge nach in der Blechplatte vier Kanäle 7 eingeprägt sind und daß zwei Platten durch Nahtschweißen miteinander wasserdicht verschloßen sind. Die Einprägungen der beiden Platten formen einen Kanal mit kreisförmigem Querschnitt, durch den das Heizungswasser aus der Heizungsanlage strömt. Jeweils zwei Kanäle sind mittels der eingeprägten Bögen 8 miteinander verbunden. Die zwei Kanäle am Fuß des Heizelementes sind mittels eines Rohrstückes 5 an den Heizungsvorlauf und die anderen zwei Kanäle mittels des Rohrstückes 6 an den Heizungsrücklauf angeschlossen.
    In Fig. 2B und Fig. 2C ist die Draufsicht und Seitenansicht des Heizelementes vergrößert dargestellt.
    Die Oberfläche des Heizelementes ist mit Nadelrippen 16 versehen, die dazu dienen, die Wärmeübergangskoeffizienten an der Seite der Schwerkraftströmung zu erhöhen.    According to Fig. 1 , the plate heater is designed in such a way that at the foot of the two shells 1, a horizontal square channel is provided, in which an efficient heating element 2 is installed, which indirectly transfers the heat from the heating circuit to the filling liquid in the heating plate. The vertically embossed channels 3 in the heating plate are ascending, and the channels 4 descending. The filling liquid in the heating plate circulates through gravity, which is set by the density difference in the rising and falling channel in steady state operation.
    The positioning of the heating element 2 is clearly indicated in FIGS. 1A, 1B and 1C . From Fig. 1C , the positioning of the forward and return port 5 and 6 can be seen.
    In Fig. 2 , the heating element 2 is dargestelt, it can be seen that the heating element is made of two sheet metal plates in the way that the length in the sheet metal plate four channels 7 are embossed and that two plates are sealed together by seam welding watertight. The indentations of the two plates form a channel with a circular cross-section, through which the heating water flows from the heating system. Two channels are connected to each other by means of the embossed sheets 8 . The two channels at the foot of the heating element are connected by means of a pipe section 5 to the heating flow and the other two channels by means of the pipe section 6 to the heating return.
    In Fig. 2B and Fig. 2C , the plan view and side view of the heating element is shown enlarged.
    The surface of the heating element is provided with needle ribs 16 which serve to increase the heat transfer coefficients on the side of gravity flow.

    In Fig. 3 ist die Verbindung der einzelnen Heizplatten 1 als fertiger Heizkörper dargestellt. Die Verbindung der Heizplatten erfolgt mittels der Rohrsegmente 5, 6, 9, 10 und 11. Die Rohrsegmente 5 und 6 sind mittels eines T-stückes 13 miteinander wasserdicht verschweißt. Die T-Stücke 13 sind mit Gewindeanschluß versehen und dienen als Heizungsvor- und Rücklaufanschluß. Die Rohrsegmente 9, 10 und 11 sind auch mittels eines T-Stückes 12 miteinander verschweißt. Die T-Stücke 12 sind mit Verschlußschrauben vorgesehen, die der Befüllung, Entlüftung und Entleerung des Heizkörpers dienen.
    Um die Heizplatte herum, wegen der verbliebenen Prägungen und um das Nahtschweißen zu verdecken, ist ein Rahmen, Fig. 3D -14, aus L-Profil mit der Abmessung 17x20x 0,8 mm vorgesehen, der an der Frontseite der Heizplatte angebracht ist, so daß keine Aufsteckgitter oder seitliche Aufsteckdeckel mehr, wie bei üblichen Heizkörpern erforderlich sind. Der Zwischenabstand der Heizplatten beträgt 56 mm, was vollkommen für eine gute konvektive Luftströmung ausreicht. An der Hinterseite ist eine konvektive Fläche 15 angebracht, die aus Blech 0,5 mm stark, angefertigt wird. Die Aufgabe der konvektiven Fläche ist, den Strahlungsveriust zu begleichen.    In Fig. 3 the connection of the individual heating plates 1 is shown as a finished radiator. The connection of the heating plates by means of the pipe segments 5, 6, 9, 10 and 11. The pipe segments 5 and 6 are welded together watertight by means of a T-piece 13 with each other. The tees 13 are provided with threaded connection and serve as Heizungsvor- and return port. The pipe segments 9, 10 and 11 are also welded together by means of a T-piece 12 . The tees 12 are provided with screw plugs that serve to fill, vent and drain the radiator.
    In order to conceal the heating plate, because of the remaining embossing and around the seam welding, a frame, Fig. 3D -14, made of L-profile with the dimension 17x20x 0.8 mm, which is attached to the front of the heating plate, so that no Aufsteckgitter or lateral Aufsteckdeckel more, as in conventional radiators are required. The spacing of the heating plates is 56 mm, which is perfect for a good convective air flow. At the rear of a convective surface 15 is attached, which is made of sheet 0.5 mm thick, made. The task of the convective surface is to settle the radiation loss.

    Claims (10)

    Der Plattenheizkörper besteht aus einer oder mehreren Heizplatten, die mit chemisch aufbereitetem Wasser oder einer anderen Wärmeträgerflüßigkeit befüllt sind, dadurch gekennzeichnet, daß in den Heizplatten ein effizientes Heizelement eingebaut ist, das der Wärmeübertragung vom Heizwasser an die Füllflüßigkeit in der Heizplatte dient.The plate radiator consists of one or more heating plates, which are filled with chemically treated water or other heat carrier fluid, characterized in that in the heating plates, an efficient heating element is installed, which serves to transfer heat from the heating water to the Füllflüßigkeit in the heating plate. Der Plattenheizkörper nach Anspruch 1, dadurch gekennzeichnet, daß sich das Heizelement aus zwei Platten zusammensetzt, in denen die rundförmigen Kanäle eingeprägt sind. Die Platten werden miteinander durch Punktschweißen verbunden und der Außenrand ringsherum wird durch das Nahtschweißen wasserdicht verschloßen. Die eingeprägten Kanäle liegen aufeinander und bilden dabei einen kreisförmigen Querschnitt, durch den das Heizungswasser strömt und ihre Wärme der Füllflüßigkeit übergibt.The panel radiator according to claim 1, characterized in that the heating element consists of two plates in which the circular channels are embossed. The plates are connected to each other by spot welding and the outer edge around it is sealed watertight by seam welding. The impressed channels lie on one another and thereby form a circular cross-section, through which the heating water flows and transfers its heat to the filling liquid. Der Plattenheizkörper nach Anspruch 1-2, dadurch gekennzeichnet, daß die eingeprägten Kanäle in der Heizplatte so angeordnet sind, daß sich das Wasser aus dem Heizungsvorlauf auf zwei oder mehrere Teilströme verteilt, auf die Weise, daß sich die Strömungswiderstände und die Wärmeübertragung optimal einstellen. Am Ende des Heizelementes werden die eingeprägten Kanäle miteinander durch die eingeprägten Bögen, in gleicher Tiefe, verbunden.The plate radiator according to claim 1-2, characterized in that the impressed channels are arranged in the heating plate so that the water from the heating flow to two or more partial flows distributed in such a way that optimally adjust the flow resistance and heat transfer. At the end of the heating element, the impressed channels are connected to each other through the embossed sheets, at the same depth. Der Plattenheizkörper nach Anspruch 1 - 3, dadurch gekennzeichnet, daß die Oberfläche des Heizelementes mit den Nadelrippen oder einer anderen Art des Berippens versehen ist.The panel radiator according to claims 1 - 3, characterized in that the surface of the heating element is provided with the needle ribs or another type of ribbing. Der Plattenheizkörper nach Anspruch 1 - 4, dadurch gekennzeichnet, daß die eingeprägten Kanäle mit zwei Rohrstücken an den Heizungsvorlauf und Heizungsrücklauf mittels eines T-Stückes angeschloßen sind.The plate radiator according to claim 1 - 4, characterized in that the embossed channels are connected with two pieces of pipe to the heating flow and heating return by means of a T-piece. Der Plattenheizkörper nach Anspruch 1 - 5, dadurch gekennzeichnet, daß als Heizelement ein mit Lamellen beripptes U-formiges Rohrstück verwendet werden kann.The plate radiator according to claim 1-5, characterized in that a finned ribbed U-shaped piece of pipe can be used as the heating element. Der Plattenheizkörper nach Anspruch 1 - 6, dadurch gekennzeichnet, daß am Fuß der Heizplatte ein Kanal mit quadratischem Querschnitt vorgesehen ist, in dem das Heizelement eingebaut wird. The panel radiator according to claims 1 - 6, characterized in that at the foot of the heating plate, a channel is provided with a square cross-section, in which the heating element is installed. Der Plattenheizkörper nach Anspruch 1 - 7, dadurch gekennzeichnet, daß die senkrechten Säulen des Plattenheizkörpers teils als aufsteigende und teils als abfallende Kanäle verwendet werden.The panel radiator according to claim 1-7, characterized in that the vertical columns of the panel radiator are used partly as ascending and partly as sloping channels. Der Plattenheizkörper nach Anspruch 1 - 8, dadurch gekennzeichnet, daß die Heizplatten mit den T-Stücken miteinander verbunden sind und daß die Verbindungsstücke zum Füllen, Entlüften und Entleeren dienen.The plate heater according to claim 1-8, characterized in that the heating plates are connected to each other with the T-pieces and that the connecting pieces are used for filling, venting and emptying. Der Plattenheizkörper nach Anspruch 1 - 9, dadurch gekennzeichnet, daß die Heizplatten aus Stahlblech oder einem anderen Material, das 0.5 - 0.6 oder 0.8 mm dick ist, angefertigt sind und den Betriebsdruck der Heizungsanlage von 20 bar und mehr aushalten können. Heizkörper dieser Art können mit Wasserdampf beheizt werden und als Hochdruckheizkörper oder Motivheitzkörper verwendet werden, wo die Frontseite einer Heizplatte aus glattem Blech, 0,8 bis 1mm dick, angefertigt wird, auf der verschiedene Motive gedruckt werden können.The panel radiator according to claims 1-9, characterized in that the heating plates are made of sheet steel or other material which is 0.5-0.6 or 0.8 mm thick and can withstand the operating pressure of the heating system of 20 bar and more. Radiators of this type can be heated with steam and used as a high-pressure radiator or Motivheitzkörper, where the front of a hot plate made of smooth sheet metal, 0.8 to 1mm thick, made on the various motifs can be printed.
    EP04005542A 2004-03-09 2004-03-09 Plate heat exchanger with indirect heating Expired - Lifetime EP1574799B1 (en)

    Priority Applications (3)

    Application Number Priority Date Filing Date Title
    EP04005542A EP1574799B1 (en) 2004-03-09 2004-03-09 Plate heat exchanger with indirect heating
    DE502004006995T DE502004006995D1 (en) 2004-03-09 2004-03-09 Panel radiators with indirect heating
    AT04005542T ATE393905T1 (en) 2004-03-09 2004-03-09 PLATE RADIATORS WITH INDIRECT HEATING

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP04005542A EP1574799B1 (en) 2004-03-09 2004-03-09 Plate heat exchanger with indirect heating

    Publications (2)

    Publication Number Publication Date
    EP1574799A1 true EP1574799A1 (en) 2005-09-14
    EP1574799B1 EP1574799B1 (en) 2008-04-30

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    Application Number Title Priority Date Filing Date
    EP04005542A Expired - Lifetime EP1574799B1 (en) 2004-03-09 2004-03-09 Plate heat exchanger with indirect heating

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    EP (1) EP1574799B1 (en)
    AT (1) ATE393905T1 (en)
    DE (1) DE502004006995D1 (en)

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    NL2007760C2 (en) * 2011-11-09 2013-05-13 I P Consultancy METHOD FOR MANUFACTURING HEATING RADIATORS, AND ASSOCIATED APPARATUS SYSTEM AND HEATING RADIATOR
    WO2013104885A1 (en) * 2012-01-12 2013-07-18 Econotherm Uk Limited Heat transfer unit and a heat exchanger

    Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE2730541A1 (en) * 1976-07-06 1978-01-12 Zanussi A Spa Industrie RADIATOR FOR HEATING SYSTEMS OR DGL.
    US4503906A (en) * 1981-11-06 1985-03-12 Daimler-Benz Aktiengesellschaft Surface heater structure, especially for vehicles
    EP0807795A2 (en) * 1996-05-15 1997-11-19 BG plc Radiators
    DE19653440A1 (en) * 1996-12-20 1998-06-25 Kermi Gmbh Heating device, preferably made of plastic
    WO2002050479A1 (en) * 2000-12-19 2002-06-27 Lambco Holdings Limited An improved heater

    Patent Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE2730541A1 (en) * 1976-07-06 1978-01-12 Zanussi A Spa Industrie RADIATOR FOR HEATING SYSTEMS OR DGL.
    US4503906A (en) * 1981-11-06 1985-03-12 Daimler-Benz Aktiengesellschaft Surface heater structure, especially for vehicles
    EP0807795A2 (en) * 1996-05-15 1997-11-19 BG plc Radiators
    DE19653440A1 (en) * 1996-12-20 1998-06-25 Kermi Gmbh Heating device, preferably made of plastic
    WO2002050479A1 (en) * 2000-12-19 2002-06-27 Lambco Holdings Limited An improved heater

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    NL2007760C2 (en) * 2011-11-09 2013-05-13 I P Consultancy METHOD FOR MANUFACTURING HEATING RADIATORS, AND ASSOCIATED APPARATUS SYSTEM AND HEATING RADIATOR
    WO2013070069A3 (en) * 2011-11-09 2013-07-25 I.P. Consultancy Method of manufacturing radiators, and associated fittings system and radiator
    WO2013104885A1 (en) * 2012-01-12 2013-07-18 Econotherm Uk Limited Heat transfer unit and a heat exchanger

    Also Published As

    Publication number Publication date
    DE502004006995D1 (en) 2008-06-12
    ATE393905T1 (en) 2008-05-15
    EP1574799B1 (en) 2008-04-30

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