EP1645827B1 - Panel heater with indirect heating - Google Patents
Panel heater with indirect heating Download PDFInfo
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- EP1645827B1 EP1645827B1 EP04023770A EP04023770A EP1645827B1 EP 1645827 B1 EP1645827 B1 EP 1645827B1 EP 04023770 A EP04023770 A EP 04023770A EP 04023770 A EP04023770 A EP 04023770A EP 1645827 B1 EP1645827 B1 EP 1645827B1
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- heating
- panel
- pipe coil
- flow
- heating panel
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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
Abstract
Description
Die Erfindung betrifft einen drucklosen, mit einer Füllflüssigkeit befüllten Plattenheizkörper, bestehend aus einer oder mehreren Heizplatten und einem als Rohrschlange eingebauten Heizelement, durch welche Heizungswasser strömt, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a non-pressurized, filled with a filling liquid panel radiator, consisting of one or more heating plates and a built-in coil heating element through which flows heating water, according to the preamble of claim 1.
Übliche Plattenheizkörper werden heute in der ganzen Welt auf ähnliche Weise aus 1,0-1,25 mm dickem Blech angefertigt und müssen einen Druck von 15 bar aushalten.Conventional panel radiators are now made in the same way throughout the world from 1.0-1.25 mm thick sheet metal and must withstand a pressure of 15 bar.
Durch die
Dem Gegenstand der Erfindung liegt die Aufgabe zugrunde, einen Plattenheizkörper der eingangs genannten Gattung dergestalt weiter zu entwickeln und aufzuzeigen, wie ein Heizelement in einer üblichen Heizplatte eingebaut werden muss, dass, unter Einbeziehung der physikalischen Gesetze, der Plattenheizkörper die optimale Strömungsdynamik und damit verbunden, die maximalen Wärmeübergangskoeffizienten zu erzielen imstande ist.The object of the invention is based on the object to further develop a plate heater of the type mentioned and show how a heating element must be installed in a conventional hot plate that, taking into account the laws of physics, the plate radiator optimal flow dynamics and associated the maximum heat transfer coefficient can be achieved.
Die Lösung der Aufgabe besteht in den Merkmalen des Anspruchs 1. Weitere vorteilhafte Ausgestaltungen der Erfindung enthalten die Unteransprüche.The solution of the problem consists in the features of claim 1. Further advantageous embodiments of the invention include the dependent claims.
Weiterer Stand der Technik ist in den Druckschriften
In D1 ist das Prinzip des Heizkörpers mit darin eingebautem Wärmetauscher auf die Weise gegeben, dass ein hermetisch verschlossener hohler Heizkörper unter Unterdruck steht und mit einer Verdampfungsflüssigkeit befüllt ist. Im Bereich seines unteren Randes ist ein Leitungsrohr als Wärmetauscher eingebaut. Die Wärme aus dem Heizungskreislauf wird über das Leitungsrohr an die Füllflüssigkeit übertragen, die dabei verdampft. Diese Lösung ist im Grunde unterschiedlich von der Lösung der Erfindung, welche zum einen die Möglichkeit betrachtet, dass das Wärmeübertragungsmedium im hohlen Heizkörper die Füllflüssigkeit ist, die drucklos ist, und zum anderen wird die Idee gegeben, wie in den Heizplatten der üblichen Produktion eine Rohrschlange eingebaut werden kann und dabei die optimalen Wärmeübergangskoeffizienten und die optimale Strömungsdynamik erreicht werden können.In D1, the principle of the radiator with built-in heat exchanger is given in the way that a hermetically sealed hollow radiator under Vacuum is and is filled with an evaporation liquid. In the area of its lower edge, a conduit is installed as a heat exchanger. The heat from the heating circuit is transferred via the conduit to the filling liquid, which evaporates. This solution is basically different from the solution of the invention, which on the one hand considers the possibility that the heat transfer medium in the hollow radiator is the filling liquid, which is depressurized, and on the other hand, the idea is given, as in the heating plates of the usual production a coil can be installed and thereby the optimum heat transfer coefficient and optimum flow dynamics can be achieved.
Die Lösungen der Druckschriften D3, D4 und D5 sind ähnlich der Lösung in der D1; davon abgesehen unterscheiden sich diese Lösungen grundsätzlich von der Grundidee, die Gegenstand der vorliegenden Erfindung ist.The solutions of references D3, D4 and D5 are similar to the solution in D1; Apart from that, these solutions basically differ from the basic idea, which is the subject of the present invention.
Das Ziel der vorliegenden Erfindung ist, dass man am bestehenden Konzept der üblichen Plattenheizkörperproduktion Unwesentliches verändert und dabei aber eine neue Art von Plattenheizkörpern produziert, die aus dünnem Blech, 0,4- 0,8 mm, angefertigt werden und dabei den Betriebsdruck von 70 bar aushalten können. Durch die Umgestaltung der Produktion auf die neue Art der Plattenheizkörper werden keine großen Einbußen der Heizleistung verursacht. Die Umstellung auf die neue Produktionsform ermöglicht es, weltweit Millionen Tonnen an Stahlblech zu sparen.The aim of the present invention is that one modifies the existing concept of the conventional panel heater production insignificant while producing a new type of panel radiators, made of thin sheet, 0.4- 0.8 mm, while the operating pressure of 70 bar can withstand. The conversion of production to the new type of panel radiators does not cause any major losses in heating performance. The conversion to the new production form makes it possible to save millions of tons of sheet steel worldwide.
Im Sinne dieser Erfindung ist somit die Lösung gegeben, wie man prinzipiell unter der Einbeziehung der Gesetze der Strömungsdynamik und der Wärmeübertragung eine Heizschlange in die bestehende Konfiguration einer üblichen Heizplatte einbaut und damit die höchste Wärmeleistung bei der Heizplatte erzielt.For the purposes of this invention, therefore, the solution is given how to incorporate a heating coil in principle in the existing configuration of a conventional hotplate with the inclusion of the laws of fluid dynamics and heat transfer and thus achieves the highest heat output in the hotplate.
Um eine ausreichende Zirkulationsbewegung der Füllflüssigkeit in der Heizplatte zu erreichen, muss die Heizplatte auf den "warmen" und den "kalten" Bereich aufgeteilt werden. Unter dem "warmen" Bereich versteht sich der Flächenanteil der Heizplatte, in den das Heizelement eingebaut ist, in diesem Bereich bildet sich eine aufsteigende Strömung; unter dem "kalten" Bereich versteht sich der Flächenanteil der Heizplatte, in den kein Heizelement platziert ist, in diesem Bereich bildet sich eine abfallende Strömung. Die aufsteigende und die abfallende Strömung müssen voneinander, entweder durch die vorhandenen Einprägungen in der bestehenden Heizplatte oder durch die speziell dafür vorgesehenen Einbauten - z.B. U-Profile, L-Profile oder Flachprofile - getrennt werden. Zum anderen müssen die Strömungswiderstände bei der Zirkulationsbewegung der Füllflüssigkeit auf dem Minimum gehalten werden, damit die Strömungsgeschwindigkeit der Füllflüssigkeit um das Heizelement herum ausreichend groß wird, damit der Wärmeübertragungskoeffizient vom Heizelement auf die Füllflüssigkeit groß genug erhalten bleibt. Die Berechnungen zeigen, dass die Verwendung der Heizkörper mit indirekter Beheizung nur dann einen Sinn hat, wenn der Wärmeübertragungskoeffizient vom Heizelement an die Füllflüssigkeit in der Größenordnung um 600W/m2K liegt. Daraus geht hervor, dass die Flächenanteile der Heizplatte mit aufsteigender Strömung und die Flächenanteile der Heizplatte mit abfallender Strömung in einem bestimmten Verhältnis zueinander stehen müssen. Ebenso muss die Heizfläche des Heizelementes zur Außenfläche der Heizplatte in einem bestimmten Verhältnis stehen.In order to achieve a sufficient circulation movement of the filling liquid in the heating plate, the heating plate must be divided into the "warm" and the "cold" area. The "warm" area is understood as meaning the proportion of area of the heating plate in which the heating element is installed, in this area forms an ascending flow; the "cold" area is understood to mean the area of the heating plate in which no heating element is placed, in which area a sloping flow forms. The rising and falling currents must be separated from each other, either by the existing impressions in the existing heating plate or by the specially designed internals - eg U-profiles, L-profiles or flat profiles. On the other hand, the flow resistances in the circulating movement of the filling liquid must be kept to a minimum so that the flow rate of the filling liquid around the heating element becomes sufficiently large to maintain the heat transfer coefficient from the heating element to the filling liquid large enough. The calculations show that the use of the indirect heating radiators only makes sense if the heat transfer coefficient from the heating element to the filling liquid is on the order of 600W / m 2 K. It follows that the surface portions of the heating plate with rising flow and the surface portions of the heating plate with sloping flow must be in a certain relationship to one another. Likewise, the heating surface of the heating element to the outer surface of the heating plate must be in a certain ratio.
Um die Vorteile des neuen Konzeptes gegenüber den üblichen Heizkörpern zum Ausdruck zu bringen liegt es nahe, die Strömungsvorgänge bei einem üblichen Heizkörper näher zu erläutern.In order to express the advantages of the new concept compared to the usual radiators, it makes sense to explain the flow processes in a conventional radiator in more detail.
Bei herkömmlichen Heizkörpern strömt das Heizungswasser durch die senkrechten Kanäle von oben nach unten. Je weiter die senkrechten Kanäle von der Eintrittsstelle (Heizungsvorlauf) entfernt sind, desto größer sind die Strömungswiderstände und dementsprechend strömt von Kanal zu Kanal eine immer kleinere Durchflussmenge des Heizungswassers. Dies führt dazu, dass sich die Temperaturprofile über die Längsrichtung der Heizplatte unterscheiden und damit der Wärmeübertragungskoeffizient von der Heizplatte an die Raumluft immer kleiner über die Plattenlänge wird, da der Wasserwert mxCp von Kanal zu Kanal immer kleiner wird.In conventional radiators, the heating water flows through the vertical channels from top to bottom. The further the vertical channels are away from the entry point (heating flow), the larger are the flow resistances and, accordingly, from channel to channel an ever smaller flow rate of the heating water flows. As a result, the temperature profiles across the length of the heating plate differ, and thus the heat transfer coefficient from the heating plate to the room air becomes smaller and smaller over the length of the plate, since the water value mxCp becomes smaller and smaller from channel to channel.
Gemäß der vorliegenden Erfindung werden wegen der gleichmäßigen Zirkulationsströmung der Füllflüssigkeit über die Höhe und über die Länge der Heizplatte die Wärmeübergangsverhältnisse über die ganze Länge der Heizplatte ausreichend konstant gehalten. Dies hat zur Folge, dass der stationäre Zustand in einer Heizplatte gemäß der Erfindung sehr rasch erreicht wird.According to the present invention, because of the uniform circulation flow of the filling liquid over the height and over the length of the heating plate, the heat transfer ratios over the entire length of the heating plate are kept sufficiently constant. This has the consequence that the stationary state is achieved very quickly in a hotplate according to the invention.
Die Schlussfolgerung daraus ist, dass der Vorteil bei diesem Konzept auf eine andere Weise genutzt werden muss, auf Grund der Tatsache, dass die Wärmeübertragung von der Flüssigkeit (Heizungswasser in der Rohrschlange) auf die Flüssigkeit (Füllflüssigkeit in der Heizplatte) in der Größenordnung 50 bis 100 mal größer ist als von Flüssigkeit auf Luft. Die Berechnungen zeigen, dass, wenn der Wärmeübergangskoeffizient von der Heizschlange auf die Füllflüssigkeit in der Heizplatte in der Größenordnung um 600 W/m2K liegt, der Vorteil des vorgeschlagenen Konzeptes offensichtlich ist.The conclusion of this is that the advantage in this concept must be used in another way, due to the fact that the heat transfer from the liquid (heating water in the coil) to the liquid (filling liquid in the heating plate) in the order of 50 to 100 times larger than from liquid to air. The calculations show that, when the heat transfer coefficient from the heating coil to the filling liquid in the heating plate is on the order of 600 W / m 2 K, the advantage of the proposed concept is obvious.
Um diese Größenordnung des Wärmeübergangskoeffizienten erreichen zu können, muss die Strömungsgeschwindigkeit der Füllflüssigkeit um die Rohrschlange einen bestimmten Wert erreichen. Die Strömungsgeschwindigkeit der Füllflüssigkeit ist wiederum abhängig von der Zirkulationsbewegung der Füllflüssigkeit in der Heizplatte. Die Zirkulationsbewegung kann nur dann hervorgerufen werden, wenn eine bestimmte Strömungsdynamik in der Heizplatte erfüllt ist. Um die günstige Strömungsdynamik in der Heizplatte zu sichern, muss die Heizplatte auf den "warmen Bereich" und auf den "kalten Bereich" aufgeteilt werden. Unter dem "warmen Bereich" versteht sich der Anteil der Fläche, in dem die Heizschlange eingebaut ist und unter dem "kalten Bereich" wird der Anteil der Heizplattenfläche ohne Rohrschlange verstanden.In order to achieve this order of magnitude of the heat transfer coefficient, the flow rate of the filling liquid around the coil must reach a certain value. The flow rate of the filling liquid is in turn dependent on the circulation movement of the filling liquid in the heating plate. The circulation movement can only be caused if a certain flow dynamics in the heating plate is fulfilled. In order to ensure the favorable flow dynamics in the heating plate, the heating plate must be divided into the "warm area" and the "cold area". The term "warm area" is understood to mean the proportion of the area in which the heating coil is installed, and the "cold area" means the proportion of the heating plate area without a coil.
Bei einer üblichen Heizplatte zeigt es sich als optimale Lösung, die Rohrschlange in jeder zweiten Einprägung der Heizplattenschale zu verlegen, so dass die Einprägungen, in denen die Rohrschlange eingebettet ist, die Kanäle darstellen, in denen sich eine aufsteigende Strömung bildet und in den "rohrleeren" Kanälen sich eine absteigende Strömung (kalte Säule) bildet. Dabei ist wichtig zu beachten, dass die warme und die kalte Säule voneinander getrennt werden müssen, damit es nicht zur Vermischung des warmen und des kalten Stromes kommt. Falls es zur Vermischung der beiden Ströme kommen würde, kommt die Zirkulationsbewegung der Füllflüssigkeit zum Erliegen und die Wärmeübertragung von der Heizschlange auf die Füllflüssigkeit kommt zum Einbruch. In diesem Fall verliert das Konzept seinen Sinn.In a conventional hotplate, it turns out to be an optimal solution to lay the coil in every other imprint of Heizplattenschale so that the indentations in which the coil is embedded, represent the channels in which an ascending flow forms and in the "void "Channels form a descending flow (cold column). It is important to note that the hot and cold columns are separated must be so that it does not come to the mixing of the warm and the cold stream. If it would come to mixing the two streams, the circulation movement of the filling liquid comes to a standstill and the heat transfer from the heating coil to the filling liquid comes to break. In this case, the concept loses its meaning.
Die Berechnungen zeigen, dass der "warme Bereich" und der "kalte Bereich" in einem bestimmten Verhältnis zueinander stehen müssen, um eine optimale Zirkulationsbewegung der Füllflüssigkeit zu sichern. Laut Berechnungen soll dieses Verhältnis im Rahmen von 3-4,5: 1 liegen.The calculations show that the "warm area" and the "cold area" must be in a certain ratio to each other to ensure an optimal circulation movement of the filling liquid. According to calculations, this ratio should be within the range of 3-4.5: 1.
Hierzu kommt noch die Anforderung, dass die Heizleistung der Heizplatte so hoch wie möglich ist. Da diese beiden Bedingungen widersprüchlich sind, besteht in jedem Fall eine optimale Lösung, die die beiden Bedingungen erfüllt. Berechnungen zeigen, dass das Verhältnis der Heizfläche der Heizplatte zu der Heizfläche der Rohrschlange (3,5 - 5) : 1 betragen soll.In addition there is the requirement that the heating power of the heating plate is as high as possible. Since these two conditions are contradictory, there is always an optimal solution that satisfies both conditions. Calculations show that the ratio of the heating surface of the heating plate to the heating surface of the coil (3.5 - 5): 1 should be.
Im Sinne dieser Erfindung ist es, dass die Rohrschlange aus Rohr Ø 10 x 0,5 mm aus Stahl, Kupfer, VA, Aluminium oder aus einem anderen gut wärmeleitenden Material verwendet wird. Dieses Rohr kann einen Druck bis 70 bar aushalten, womit die Möglichkeit gegeben ist, diese Heizkörper in Hochhäusern einzusetzen. Besonders zu erwähnen ist, dass diese Heizkörper dort eingesetzt werden können, wo aggressive Medien in der Heizungsanlage präsent sind.For the purposes of this invention, it is that the tube of pipe Ø 10 x 0.5 mm made of steel, copper, VA, aluminum or other good heat conducting material is used. This pipe can withstand a pressure of up to 70 bar, which makes it possible to use these radiators in high-rise buildings. Particularly noteworthy is that these radiators can be used where aggressive media in the heating system are present.
Man kann zwar die Rohrschlange mit anderen Durchmessern einsetzen, dabei sind aber wieder zwei widersprüchliche Forderungen gestellt, zum einen der Strömungswiderstand in der Rohrschlange - dementsprechend soll die Rohrschlange einen größeren Durchmesser haben - und zum anderen die Dicke der üblichen Heizplatte, die üblicherweise auf 16-20 mm begrenzt ist.Although you can use the coil with other diameters, but again two contradictory demands are made, on the one hand, the flow resistance in the coil - accordingly, the coil should have a larger diameter - and on the other, the thickness of the usual hot plate, which is usually 16- 20 mm is limited.
Um die Zirkulationsbewegung der Füllflüssigkeit in der Heizplatte aufrecht zu erhalten ist es wichtig, dass im aufsteigenden Kanal der Kanalquerschnitt groß genug ist, damit die Strömungswiderstände niedrig gehalten werden können. Dabei ist auch wichtig, dass die Querschnittverhältnisse, d.h. Kanalquerschnitt zum Rohrquerschnitt, in einem bestimmten Verhältnis zueinander stehen müssen, um oben genannte Forderungen erfüllen zu können. Die Berechnungen zeigen, dass dieses Verhältnis im Rahmen (1,7 - 2,5) : 1 liegen muss.In order to maintain the circulation movement of the filling liquid in the heating plate, it is important that in the ascending channel, the channel cross-section is large enough so that the flow resistance can be kept low. It is also important that the cross-sectional conditions, ie channel cross-section to the pipe cross-section, must be in a certain ratio to each other in order to meet the above requirements. The calculations show that this ratio must be in the range (1.7 - 2.5): 1.
Es stellt sich gleich die Frage: Warum braucht man so etwas? Die Antwort dafür ergibt sich ganz deutlich. Die Schale bei der üblichen Heizplattenproduktion wird aus Blech (1,2-1,25 mm) angefertigt. Die zwei Schalen (eine Heizplatte) mit der Abmessung 600 mm x 1000 mm wiegen ca. 11,52 kg - 12 kg.The question immediately arises: Why does one need such a thing? The answer is quite clear. The shell in the usual Heizplattenproduktion is made of sheet metal (1.2-1.25 mm). The two trays (a heating plate) measuring 600 mm x 1000 mm weigh approx. 11.52 kg - 12 kg.
Nach dem Konzept der vorliegenden Erfindung, d.h. eine Heizplatte mit eingebauter Rohrschlange gemäß den vorgenannten Erläuterungen, kann die Schale aus Blech 0,5 mm angefertigt werden und dem entsprechend wiegt eine Heizplatte nur 4,8 kg. Die neue Art des drucklosen Platten heizkörpers, der mit Flüssigkeit befüllt ist und auf ähnliche Weise wie die üblichen Plattenheizkörper angefertigt ist, besteht darin, dass dieser mit einer Blechstärke von 0,4 bis 0,8 mm angefertigt ist.According to the concept of the present invention, i. a hot plate with built-in coil according to the above explanations, the shell can be made of sheet 0.5 mm and accordingly weighs a hot plate only 4.8 kg. The new type of pressureless plate radiator, which is filled with liquid and made in a similar manner as the usual panel radiators, is that this is made with a sheet thickness of 0.4 to 0.8 mm.
Beispielsweise wird für eine Heizplatte - 1000mmx600mm - eine Rohrschlange von ca. 10 - 12 m Länge erforderlich, die aus Rohr Ø 10 x 0,5mm angefertigt wird. Das Gewicht der Rohrschlange beträgt 1,19 kg und somit beträgt das Gesamtgewicht der Heizplatte 5,99 kg - 6 kg.For example, for a hot plate - 1000mmx600mm - a coil of about 10 - 12 m in length is required, which is made of tube Ø 10 x 0.5mm. The weight of the coil is 1.19 kg and thus the total weight of the heating plate is 5.99 kg - 6 kg.
Wenn man davon ausgeht, dass in einer üblichen Heizplatte mit der Wanddicke 0,5 mm, die Rohrschlange eingebaut wird, ist es leicht auszurechnen, dass man pro Heizkörper 12 kg an Stahlblech einspart. In Anbetracht der auf dem Weltmarkt ansteigenden Stahlpreise bietet sich die neue Lösung als ausgezeichnete Möglichkeit für eine wirtschaftliche Herstellung von Plattenheizkörpern.Assuming that the coil is installed in a standard hot plate with a wall thickness of 0.5 mm, it is easy to calculate that you save 12 kg of steel per radiator. In view of rising steel prices on the world market, the new solution offers an excellent opportunity for economical production of panel radiators.
Die andere Möglichkeit ist, die Rohrschlange in "Queranordnung" zu gestalten, z.B. die Rohre in horizontaler Anordnung einzubauen, wobei die Höhe der Rohrschlange cirka die halbe Höhe der Heizplatte einnimmt. An den beiden Enden der Rohrschlange sind jeweils ein "U-Profil" angebracht, um die Schwerkraftströmungen in dem aufsteigenden und in dem abfallenden Bereich voneinander zu trennen, damit nicht eine Vermischung der Teilströme auftritt.The other possibility is to make the coil in "transverse arrangement", for example, to install the pipes in a horizontal arrangement, wherein the height of the coil is about half the height of the heating plate occupies. At the two ends of the coil are each a "U-profile" attached to the gravity currents in the ascending and in the sloping area to separate from each other, so that a mixing of the partial flows does not occur.
Als eine "Untervariante" dieser Lösung besteht die Möglichkeit, dass die Rohrschlange nur in einer Hälfte der Heizplatte angebracht wird, wobei die "warme Hälfte" - die Hälfte der Heizplatte in der die Rohrschlange aufgelegt ist - von der "kalten Hälfte" mittels eines "U-Profils" oder eines "L-Profils" voneinander getrennt sind, damit die kalte und die warme Strömung nicht miteinander vermischt werden.As a "sub-variant" of this solution, it is possible that the coil is mounted in only one half of the heating plate, with the "warm half" - half of the heating plate in which the coil is placed - from the "cold half" by means of a " U-profile "or an" L-profile "are separated so that the cold and the warm flow are not mixed together.
Um die Schale zu versteifen, sind über die ganze Schalenoberfläche Einprägungen vorgesehen, die durch das Punktschweißen die beiden Schalen zusammenhalten.To stiffen the shell, embossments are provided over the entire shell surface, which hold the two shells together by spot welding.
Kurzbezeichnung der Zeichnung, in der zeigen:
- Fig. 1
- eine Prinzipskizze des erfindungsgemäßen Plattenheizkörper mit einge- bauter Rohrschlange aus einem Rohr, das in versetzter Anordnung - in jedem zweiten Kanal ist das Rohr eingelegt - eingelegt ist,
- Fig.1A und 1B
- zur Verdeutlichung der
Fig.1 , - Fig. 2
- eine Prinzipskizze mit eingebauter Rohrschlange bis zu einer bestimmten Länge der Heizplatte, jedoch sind die Rohre in jeden Kanal eingelegt,
- Fig. 3
- eine Prinzipskizze des erfindungsgemäßen Plattenheizkörpers mit einge- bauter Rohrschlange in horizontaler Ausführung; die Rohrschlange ist bis zu einer bestimmten Länge und bis zur einen bestimmten Höhe des Plattenheizkörpers eingebaut; der Flächenanteil des Plattenheizkörpers, der nicht mit der Rohrschlange bedeckt ist, dient als absteigender Teil bei der Gravitationsströmung innerhalb der Heizplatte,
- Fig.3A und 3B
- zur Verdeutlichung der
Fig.3 , - Fig.4
- eine Prinzipskizze des erfindungsgemäßen Plattenheizkörpers mit einge- bauter Rohrschlange in horizontaler Ausführung; die Rohrschlange ist über die ganze Höhe und bis zu einer bestimmten Länge des Platten- heizkörpers eingebaut; der Teil der Fläche des Plattenheizkörpers der nicht mit der Rohrschlange bedeckt ist, dient als absteigender Teil bei der
- Fig.5
- Gravitationsströmung innerhalb der Heizplatte, die Möglichkeit, dass die Rohrschlange an den beiden Enden der Heiz- platte angebracht ist, d.h. in der Mitte der Heizplatte befindet sich die abfallende und an den Enden der Heizplatte die aufsteigende Strömung; mittels der U-Profile, die an den beiden Enden der Rohrschlange ange- bracht sind wird verhindert, dass es zur Überlagerung der aufsteigenden und absteigenden Strömung kommt,
- Fig.6
- die Gestaltung eines Plattenheizkörpers aus zwei Heizplatten und zwei Lamellen, wobei die Lamellen von der Innenseite der Heizplatten durch Punktschweißen befestigt sind, sowie mit Befüllungs- und Verschluss- Schrauben und mit Versteifungsblechen versehen ist und
- Fig. 6A , 6B, 6C und 6D
- zur Verdeutlichung der
Fig. 6 .
- Fig. 1
- a schematic diagram of the panel heater according to the invention with built-in tube coil of a tube in a staggered arrangement - in every other channel is the tube inserted - is inserted,
- Fig.1A and 1B
- to clarify the
Fig.1 . - Fig. 2
- a schematic diagram with built-in coil up to a certain length of the heating plate, but the tubes are inserted into each channel,
- Fig. 3
- a schematic diagram of the panel heater according to the invention with built-in tube coil in a horizontal design; the coil is installed up to a certain length and up to a certain height of the panel radiator; the area fraction of the panel heater which is not covered with the coil serves as a descending part in the gravitational flow within the heating panel,
- 3A and 3B
- to clarify the
Figure 3 . - Figure 4
- a schematic diagram of the panel heater according to the invention with built-in tube coil in a horizontal design; the coil is installed over the entire height and up to a certain length of the plate radiator; the part of the surface of the panel radiator which is not covered with the coil serves as a descending part in the
- Figure 5
- Gravity flow inside the heating plate, the possibility that the coil is attached to both ends of the heating plate, ie in the middle of the heating plate is the sloping and at the ends of the heating plate the rising flow; By means of the U-profiles, which are attached at the two ends of the coil, it is prevented that the superposition of the ascending and descending flow occurs,
- Figure 6
- the design of a plate radiator of two heating plates and two lamellae, the lamellae are fixed from the inside of the heating plates by spot welding, and is provided with filling and closure screws and with stiffening plates and
- Figs. 6A, 6B, 6C and 6D
- to clarify the
Fig. 6 ,
Gemäß
Gemäß
Gemäß
Gemäß
Bei der Gravitationsströmung innerhalb der Heizplatte ist die Rohrschlange bis zu einer bestimmten Länge der Heizplatte angebracht, wobei im Kanal 18a die Rohrschlange eingelegt ist und der ganze, mit der Heizspirale bedeckte Bereich, als aufsteigend 18a gilt und der rohrleere Bereich 19a als absteigend. Dadurch wird die zirkulierende Bewegung der Füllflüssigkeit über die Länge und über die Höhe der Heizplatte hervorgerufen.In the gravitational flow within the heating plate, the coil is mounted up to a certain length of the heating plate, wherein in the
Gemäß
Gemäß
Geht man davon aus, dass ein üblicher Heizkörper mit den Abmessungen 600 x 1000 mm 39,87 kg wiegt - zwei Heizplatten und zwei Lamellen, z.B. von der Firma Vogel und Not - und der Heizkörper gemäß dieser Erfindung um 12 kg leichter ist, lässt sich schließen, dass der Heizkörper in der gleichen Größe gemäß dieser Erfindung der mit der Füllflüssigkeit befüllt ist, nur 27,87 kg schwer ist. Es ist offensichtlich, dass an Transportkosten zusätzlich gespart wird.Assuming that a typical radiator measuring 600 x 1000 mm weighs 39.87 kg - two hot plates and two fins, e.g. Vogel and Not - and the radiator according to this invention is 12 kg lighter, it can be concluded that the radiator of the same size according to this invention filled with the filling liquid weighs only 27.87 kg. It is obvious that additional transport costs will be saved.
Claims (14)
- A pressure-free panel-type radiator filled with a fluid, consisting of one or more heating panels and a heating element installed as a pipe coil (17) through which heating water flows, characterized in that either(a) vertical channels (18, 19) are formed by impressions of the heating panels, and the pipe coil (17) is installed in a vertical arrangement in the impressions, whereby a gravitation flow of the filling fluid is brought about inside the heating panel in such a way that a rising, hot flow is established in the channels (18) in which the pipe coil (17) is installed, while a falling, cold flow is established inside the heating panel in the channels (19) without a pipe coil, or(b) the heating panels (24) are produced as a flat plate with baffles (21) and the pipe coil (17) is inserted in a horizontal arrangement between the flat plates in such a way that only a certain part of the heating panel, up to a certain length of the panel-type radiator, is covered by the pipe coil (17), whereby inside the heating panel, a gravitation flow of the filling fluid is brought about inside the heating panel in such a way that a rising, hot (18a) flow is established in the areas of the heating panel that are covered by the pipe coil (17), while a falling, cold (19a) flow is established inside the heating panel in the areas of the heating panel that are not covered by the pipe coil (17),so that, in both alternatives, always the only part of the heating panel to be covered by the pipe coil (17) is the one in which the rising movement of the filling fluid is established, while the falling movement of the filling fluid is established in the part of the heating panel that is not covered by the pipe coil (17), and, in order to prevent mixing, the rising and falling flows are separated from each other either by the impressions or by the baffles.
- The panel-type radiator according to Claim 1, characterized in that the portions of the surface of the heating panel that are covered by the pipe coil (17) are at a ratio of 3 to 4.5:1 with respect to the portions of the surface of the heating panel that are not covered by the pipe coil (17).
- The panel-type radiator according to Claim 1 or 2, in accordance with alternative (b), characterized in that, in order to prevent the mixing of the rising and falling flows (18a, 19a) of the filling fluid, the heating surface that is covered by the pipe coil is separated from the heating surface without the pipe coil by means of two U-profiles or L-profiles (21) or flat profiles.
- The panel-type radiator according to Claim 1, in accordance with alternative (a), characterized in that the pipe coil (17) is inserted either(a) into every other channel (18) of the heating panel, or(b) into each of the channels (18) that are arranged in a vertical arrangement in the heating panel, up to a certain length of the heating panel.
- The panel-type radiator according to Claim 3, characterized in that the two U-profiles (21) or L-profiles (21) or flat profiles that separate the flow around the pipe coil (17) from the falling flow (19a) extend over the entire height of the heating panel, whereby only a gap remains open for deflecting the rising flow (18a) into the falling flow (19a).
- The panel-type radiator according to one of Claims 1, 2, 4, in accordance with alternative (a), characterized in that the cross section of the channel (18) impressed in the heating panel is at a ratio of 1.7 to 2.5:1 with respect to the pipe cross section of the pipe coil (17).
- The panel-type radiator according to one of Claims 1 to 6, characterized in that, in order to achieve an optimal heating performance, the heating surface of the heating panel is at a ratio of 3.5 to 5:1 with respect to the heating surface of the pipe coil (17).
- The panel-type radiator according to one of Claims 1 to 7, characterized in that the pipe coil (17), having an outer diameter of 10 mm, consists of a piece that is not more than 10 meters long.
- The panel-type radiator according to one of Claims 1 to 8, characterized in that, for the maximum length of a radiator, a radiator length of up to 3 meters, two or more pipe coils (17) are connected in parallel in a heating panel.
- The panel-type radiator according to one of Claims 1 to 9, characterized in that two or more heating panels are combined, whereby the pipe coils (17) are connected to each other by means of T-pieces (27).
- The panel-type radiator according to Claim 10, characterized in that the pipe coils (17) are embedded into a shell (25) and sealed airtight by means of a second shell (25), whereby the heating water is distributed uniformly over two heating panels into the pipe coils (17) that are embedded into the shells (25), whereby lamella (26) are attached to the insides of the heating panels by means of spot welding.
- The panel-type radiator according to one of the preceding Claims 1 to 11, characterized in that the heating panel is made of sheet metal having a thickness between 0.4 mm and 0.8 mm.
- The panel-type radiator according to one of the preceding Claims 1, 3 or 5, in accordance with alternative (b), characterized in that the pipe coil is only installed in one half of the heating panel, whereby the "hot half" of the heating panel, namely, the half in which the pipe coil has been placed, is separated from the "cold half" by means of a "U-profile" or an "L-profile".
- The panel-type radiator according to one of the preceding Claims 1, 3 or 5, in accordance with alternative (b), characterized in that the pipe coil is installed at both ends of the heating panel, so that the falling flow (19a) is situated in the middle of the heating panel, while the rising flow (18a) is situated at the ends of the heating panel.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04023770A EP1645827B1 (en) | 2004-10-06 | 2004-10-06 | Panel heater with indirect heating |
AT04023770T ATE516473T1 (en) | 2004-10-06 | 2004-10-06 | PLATE RADIATORS WITH INDIRECT HEATING |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04023770A EP1645827B1 (en) | 2004-10-06 | 2004-10-06 | Panel heater with indirect heating |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1645827A1 EP1645827A1 (en) | 2006-04-12 |
EP1645827B1 true EP1645827B1 (en) | 2011-07-13 |
Family
ID=34926863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04023770A Not-in-force EP1645827B1 (en) | 2004-10-06 | 2004-10-06 | Panel heater with indirect heating |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1645827B1 (en) |
AT (1) | ATE516473T1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019099834A1 (en) * | 2017-11-16 | 2019-05-23 | The Trustees Of Princeton University | Thermally radiative apparatus and method |
Families Citing this family (1)
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 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB695628A (en) * | 1950-02-13 | 1953-08-12 | John William Richings | Improvements in or relating to heating appliances |
FR1555783A (en) * | 1967-12-06 | 1969-01-31 | ||
DE1912441A1 (en) * | 1969-03-12 | 1970-10-01 | Gerhard & Rauh | Radiator |
JPS55160298A (en) * | 1979-05-31 | 1980-12-13 | Matsushita Electric Works Ltd | Heat panel |
DE19653440A1 (en) * | 1996-12-20 | 1998-06-25 | Kermi Gmbh | Heating device, preferably made of plastic |
-
2004
- 2004-10-06 EP EP04023770A patent/EP1645827B1/en not_active Not-in-force
- 2004-10-06 AT AT04023770T patent/ATE516473T1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019099834A1 (en) * | 2017-11-16 | 2019-05-23 | The Trustees Of Princeton University | Thermally radiative apparatus and method |
US11815287B2 (en) | 2017-11-16 | 2023-11-14 | The Trustees Of Princeton University | Thermally radiative apparatus and method |
Also Published As
Publication number | Publication date |
---|---|
EP1645827A1 (en) | 2006-04-12 |
ATE516473T1 (en) | 2011-07-15 |
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