EP2256426A2 - Plate radiator - Google Patents

Plate radiator Download PDF

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Publication number
EP2256426A2
EP2256426A2 EP10163063A EP10163063A EP2256426A2 EP 2256426 A2 EP2256426 A2 EP 2256426A2 EP 10163063 A EP10163063 A EP 10163063A EP 10163063 A EP10163063 A EP 10163063A EP 2256426 A2 EP2256426 A2 EP 2256426A2
Authority
EP
European Patent Office
Prior art keywords
spacer
channel
heating
collecting channel
panel radiator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10163063A
Other languages
German (de)
French (fr)
Other versions
EP2256426B1 (en
EP2256426A3 (en
Inventor
Sylvain Berthet
Roger Grauls
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caradon Stelrad BV
Original Assignee
Caradon Stelrad BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caradon Stelrad BV filed Critical Caradon Stelrad BV
Priority to PL10163063T priority Critical patent/PL2256426T3/en
Publication of EP2256426A2 publication Critical patent/EP2256426A2/en
Publication of EP2256426A3 publication Critical patent/EP2256426A3/en
Application granted granted Critical
Publication of EP2256426B1 publication Critical patent/EP2256426B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/0002—Means for connecting central heating radiators to circulation pipes
    • F24D19/0017—Connections between supply and inlet or outlet of central heating radiators
    • F24D19/0024—Connections for plate radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/0002—Means for connecting central heating radiators to circulation pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/0002—Means for connecting central heating radiators to circulation pipes
    • F24D19/0026—Places of the inlet on the radiator
    • F24D19/0036—Places of the inlet on the radiator on the bottom in the middle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/0002—Means for connecting central heating radiators to circulation pipes
    • F24D19/0039—Places of the outlet on the radiator
    • F24D19/0048—Places of the outlet on the radiator on the bottom in the middle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/0002—Means for connecting central heating radiators to circulation pipes
    • F24D19/0073—Means for changing the flow of the fluid inside a radiator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/08—Arrangements for drainage, venting or aerating
    • F24D19/082—Arrangements for drainage, venting or aerating for water heating systems
    • F24D19/083—Venting arrangements
    • F24D19/085—Arrangement of venting valves for central heating radiators
    • 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
    • F28D1/03—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 plate-like or laminated conduits
    • F28D1/0308—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2240/00—Spacing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/18—Safety or protection arrangements; Arrangements for preventing malfunction for removing contaminants, e.g. for degassing

Definitions

  • the invention relates to a panel radiator with at least one of two half-shells connected heating plate, wherein between the half shells an upper collecting channel, parallel to the upper collecting channel a lower collecting channel and the upper collecting channel and the lower collecting channel connecting heating channels are formed for a heating means, and with a the upper collecting channel formed vent opening of the heating plate, as well as with a spacer between the half shells at the vent opening, which divides the upper collecting channel in a front area arranged in front of the spacer and a rear portion arranged behind the spacer rear portion, and having a flow area through which at Venting the panel radiator air from the front area in the spacer and flows out of this through the vent opening from the heating plate, wherein the spacer flows through the heating medium between the rear region (H) and the Vent vent prevents.
  • the half-shells of such panel radiators are typically thermoformed from sheet steel and assembled and welded essentially under tolerance of the resulting deviations from the ideal shape.
  • spacers Before joining spacers are inserted into the heating plate there in the collecting ducts, where this Schuffenan gleich- and vents has to be welded to the heating medium in the further course of the production of the panel radiator or vent pipes.
  • the spacers can also be welded to the half-shells, so as to stabilize the shape of the collecting channel and the heating plate at the joint both during welding and on the finished panel heater. Usually, however, the spacers are only loosely inserted.
  • Such plate heaters and various forms of spacers are general, for example from the AT 411 493 B known.
  • the spacers are installed in the upper collecting channel so that between the outer circumference of the spacer and the inner sides of the half-shells in each case two approximately triangular passage cross-sections of the collecting channel remain open.
  • venting the known panel radiator air flows from the rear of the collecting channel - to which the spacers are closed - past the spacer in the front area and from there through the flow cross-section to the vent opening of the heating plate.
  • the invention has for its object to improve the efficiency of the plate radiator.
  • the spacer fills the upper collecting channel in the flow direction tight and has a relative to the flow cross-section smaller vent passage through which air flows from the rear area against a flow direction of the air from the front area in the spacer when venting the panel heater.
  • appreciable leakage currents of the heating means are effectively avoided by the spacer.
  • the air can also flow past, so that the air from the rear region - likewise counter to the flow direction of the air from the front region - at the flow cross section or the inner Free space of the spacer flows past to get in this way in the front area, from where - as the air there is also - an escape through the flow area is possible.
  • the ventilation channel prevents the heating medium from flowing through during operation of the panel radiator.
  • any leakage current of the heating medium is avoided in the rear region of the upper collecting channel.
  • the high surface tension of the water commonly used as heating means in combination with its greater viscosity vis-a-vis air, permits different generally known designs of the venting channel, which effectively avoid flow through.
  • the air from the two areas passes to two different ones Paths in the flow cross-section of the spacer and from there to the vent valve.
  • the spacer preferably has at least one polymer sealant which seals the upper collecting duct.
  • Such a spacer seals reliably and permanently even without extensive preparation of the mounting location of the upper collecting duct.
  • the heating plate at a side facing away from the vent opening end of the upper collecting channel a Schuffenan gleichö réelle and at this between the half shells identical to the spacer further spacer in relation to the spacer mirror-image arrangement on a panel heater according to the invention.
  • a symmetrical plate radiator allows a reduction in the number of variants and thus a reduced storage requirement of the heating plates for the production of the panel heater according to the invention.
  • a ventilation channel is arranged in a support region of the spacer formed of a metallic ring with respect to the at least one flow opening.
  • the air flows from opposite sides, firstly from the front and second from the rear, into the inner space of the spacer and from there through a wall of the heating plate.
  • the support area in the region of the venting duct can have an increased wall thickness compared to the other areas.
  • the cross-section of the venting channel may depend on the environment of the spacer, i. typically decrease from the rear of the upper collection channel to the inner space of the spacer.
  • a conical shape of the venting channel is here a particularly preferred embodiment.
  • venting channel is that it is arranged in a polymer sealant which adjoins a support region on the outside and runs tangentially to the approximately annular support region.
  • a polymer sealant which adjoins a support region on the outside and runs tangentially to the approximately annular support region.
  • there is no connection between the rear portion of the upper collecting channel and the inner space of the spacer but there is a kind of overflow of the rear into the front region of the collecting channel, from where the air can escape through the flow cross-section of the respective heating plate.
  • the spacer or the vent channel integrated therein has a kind of bypass function in this case.
  • a pipe section may be embedded in a material having a significantly greater rigidity than that of the polymer material.
  • a piece of metallic tube will be used here.
  • a vent channel in the polymer sealant may alternatively or in addition to a vent channel in the metallic support region of the spacer are used.
  • a vent channel arranged in the polymer sealant should be arranged as far up in the upper collecting channel as possible in order to allow air to flow from the rear to the front region.
  • the in FIG. 1 shown plate heater 1 has three heating plates 2, 3.
  • the heating plates 2, 3 are welded from two half-shells 4 profiled by deep drawing steel sheet and to Schuffenan gleichö Maschinenen with Schuffenrohren 5.
  • the heating means is supplied to the panel radiator 1 through the inlet 6 (at a lower, central distribution set), first passes through the front panel 2 and then the two rear heating plates 3 and is discharged through the outlet 7 (at the lower distributor set) from the plate radiator 1.
  • the Schuffenan gleichö Maschinenen and the heating means are not shown.
  • the heating plate 2 has a consisting only of a metallic, made of steel support area 8 spacers 9, on the top 10 of the panel radiator 1, the heating means by two identical, symmetrically arranged spacer 11 according to the invention derived, one of which in the FIGS. 3a and 3b in two detail sections through the heating plate 2 and in the FIGS. 4a to 4d and 5 is shown individually in different views in FIG.
  • the spacer 11 divides the upper collecting channel 13 into a front region V and a rear region H behind the spacer 11.
  • the heating medium flows essentially upwards through a central heating channel 12 into the upper collecting channel 13 from this downwards through a plurality of heating channels 14 in the lower collecting channel 15 and finally again upwards by two peripheral heating channels 16 and by the inventive spacers 11 in the rear heating plates.
  • the spacer 11 has a support region 17 formed from a steel pipe section and an annular injection-molded polymer sealant 18 made of a silicone elastomer enclosing the support region 17.
  • the support region 17 has a cylindrical jacket 19, two annular support shoulders 20 and in each case a bore 21.
  • the jacket 19 has a substantially rectangular flow opening 22 with 13 x 5 mm cross-section for the heating medium and this against a small vent channel 23 with 2 mm diameter.
  • the diameter of the venting channel should be between 1.5 mm and 2.5 mm.
  • the polymer sealant 18 has a circular cylindrical inner surface 24 with a slight undersize relative to the jacket 19 of the support region 17.
  • the polymer sealant 18 has a rectangular cross-section with edges 25 that are slightly outside and two oppositely directed, tapered sealing elements 26. Openings 27 are formed above the flow opening 22 and above the vent channel 23 of the support area 17 at the polymer sealant 18.
  • the sealing elements 26 of the polymer sealant 18 two sections 28 of a passage section 29 between the upper collecting channel 13 and the peripheral heating channel 16. This happens in that the spacer 11 together with the sealing means 18, the cross section of the collecting channel 13 between the last and penultimate heating channel 16 blocked.
  • the annular support area encloses an inner space F of the spacer 11 through which media such as water as heating medium or air can flow.
  • first spacer 11 may in the FIGS. 6a to 6d and 7 in different views and in the FIGS. 8a and 8b shown in two sections further inventive spacer 30, as in FIG. 9 shown in the installed state, come in a heating plate 31 according to the invention of a plate heater according to the invention not shown used.
  • the second spacer 30 has another support region 32 formed from a steel pipe section and a polymer sealant 34 made of a silicone elastomer injection-molded in two separate, wedge-shaped sealing elements 33.
  • the support region 32 essentially has the dimensions of the support region 17 of the first spacer 11 according to the invention.
  • the jacket 35 of the support region 32 has two circular flow openings 36 of 6 mm diameter for the heating means and this opposite a small vent passage 37.
  • the support area 32 with two opposite rectangular detent openings 38 provided with an adapted cross section for the sealing elements 33.
  • the sealing elements 33 each have a slightly circular-cylindrical curved inner surface 39 and a holding portion in the form of a locking nipple 40 for connection to the support portion 32.
  • the liquid heating medium flows exclusively through the flow cross section of the opening 27 of the first spacer 11 or through the flow openings 36 of the second spacer 30.
  • the surface tension or greater viscosity of the heating means prevents the respective ventilation channels 23 from flowing through , 37.
  • venting channels 23, 37 occur only when venting, both during initial filling, and in the maintenance of the panel heater 1 according to the invention in function: in the peripheral heating channel 16 accumulated air escapes through the front region V of the upper collecting channel 13 through the opening 27 of First spacer 11 or the flow openings 36 of the second spacer 30. In the rear portion H of the upper collecting channel 13 accumulated air escapes through the respective vent channel 23, 37th
  • a third embodiment of a spacer 43 is shown.
  • the spacer 43 has a metallic support portion 44 and two therein sealing elements 45 outwardly upwardly and downwardly from a polymer sealant 46.
  • a vent channel 47 is formed in the interior of the upper sealing element 45. The venting channel 47 extends tangentially to the annular shaped support portion 44.
  • venting channel 47 therefore - in contrast to the second venting channel 48 described below - no connection between the outer environment of the spacer (in particular between the front region V or Rear area H) and arranged in the interior of the support portion 44 space F of the spacer 43 ago. Rather, the vent passage 47 exclusively performs a bypass function by connecting the front portion V and the rear portion H in the upper header.
  • the inner circumferential surface of the vent channel 47 is formed by a metal pipe section 49, which embedded as a kind Support element acts.
  • the second vent channel 48 of the spacer 43 has a conical shape, wherein the cross section of the outer periphery of the spacer 43 tapers to the inner space F out.
  • the wall thickness of the support region 44 is increased, wherein the venting channel 48 is surrounded by a tapered collar 50 toward the inner free space F.
  • Both the cross-sectional shape of the vent channel 48 itself and that of the collar 50 prevent passage of water from the internal clearance F of the spacer 43 into the rear part of the upper collecting channel during normal heating operation.
  • FIG. 10b It can be seen that the flow through both of the venting channel 47 located in the polymer sealant 46 and the venting channel 48 located in the metallic support region 44 takes place respectively in the direction of the arrow 51, whereas the flow of the air from the front region V into the inner free space F of the spacer 43 in the direction of the arrow 52, that is, in the opposite direction.

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

Abstract

The panel-type radiator (1) has one of two half shells (4) connected to a hot plate (2). A spacer densely fills an upper collecting channel in the direction of flow. A vent hole is provided, which is smaller as compared to a flow area. Air flows from a rear area in the spacer by the venting of the panel-type radiator.

Description

Die Erfindung betrifft einen Plattenheizkörper mit mindestens einer aus zwei Halbschalen verbundenen Heizplatte, wobei zwischen den Halbschalen ein oberer Sammelkanal, parallel zu dem oberen Sammelkanal ein unterer Sammelkanal und den oberen Sammelkanal und den unteren Sammelkanal verbindende Heizkanäle für ein Heizmittel ausgebildet sind, und mit einer an dem oberen Sammelkanal ausgebildeten Entlüftungsöffnung der Heizplatte, sowie mit einem Abstandhalter zwischen den Halbschalen an der Entlüftungsöffnung, der den oberen Sammelkanal in einen vor dem Abstandhalter angeordneten vorderen Bereich und einen hinter dem Abstandhalter angeordneten hinteren Bereich teilt, und der einen Durchflussquerschnitt aufweist, durch den beim Entlüften des Plattenheizkörpers Luft aus dem vorderen Bereich in den Abstandhalter und aus diesem durch die Entlüftungsöffnung aus der Heizplatte strömt, wobei der Abstandhalter ein Durchströmen des Heizmittels zwischen dem hinteren Bereich (H) und der Entlüftungsöffnung verhindert.The invention relates to a panel radiator with at least one of two half-shells connected heating plate, wherein between the half shells an upper collecting channel, parallel to the upper collecting channel a lower collecting channel and the upper collecting channel and the lower collecting channel connecting heating channels are formed for a heating means, and with a the upper collecting channel formed vent opening of the heating plate, as well as with a spacer between the half shells at the vent opening, which divides the upper collecting channel in a front area arranged in front of the spacer and a rear portion arranged behind the spacer rear portion, and having a flow area through which at Venting the panel radiator air from the front area in the spacer and flows out of this through the vent opening from the heating plate, wherein the spacer flows through the heating medium between the rear region (H) and the Vent vent prevents.

Die Halbschalen derartiger Plattenheizkörper werden typischer Weise aus Stahlblech tiefgezogen und im Wesentlichen unter Tolerierung der hierbei entstehenden Abweichungen von der Idealform zusammengefügt und verschweißt. Vor dem Zusammenfügen werden in die Heizplatte Abstandhalter dort in die Sammelkanäle eingefügt, wo diese Heizmittelanschluss- und Entlüftungsöffnungen aufweist, auf die im weiteren Verlauf der Herstellung des Plattenheizkörpers Heizmittel- beziehungsweise Entlüftungsrohre aufgeschweißt werden. Die Abstandhalter können hierbei gleichfalls mit den Halbschalen verschweißt werden, um so sowohl beim Schweißen als auch an dem fertigen Plattenheizkörper die Form des Sammelkanals und der Heizplatte an der Verbindungsstelle zu stabilisieren. Meist sind die Abstandhalter jedoch nur lose eingelegt.The half-shells of such panel radiators are typically thermoformed from sheet steel and assembled and welded essentially under tolerance of the resulting deviations from the ideal shape. Before joining spacers are inserted into the heating plate there in the collecting ducts, where this Heizmittelanschluss- and vents has to be welded to the heating medium in the further course of the production of the panel radiator or vent pipes. The spacers can also be welded to the half-shells, so as to stabilize the shape of the collecting channel and the heating plate at the joint both during welding and on the finished panel heater. Usually, however, the spacers are only loosely inserted.

Um Varianten - und damit sowohl Lagerbedarf als auch Fehlermöglichkeiten bei Herstellung und Installation - zu vermeiden, werden bei solchen Plattenheizkörpern mit mehreren Heizplatten in dem oberen Sammelkanal identische Abstandhalter in spiegelbildlicher Anordnung an beiden Öffnungen eingesetzt. Durch den Abstandhalter an der Heizmittelanschlussöffnung strömt im Betrieb eines solchen Plattenheizkörpers das Heizmittel aus dem vorderen Bereich des Sammelkanals durch den Durchflussquerschnitt zu der Heizmittelanschlussöffnung oder - je nach Strömungskonzept des Plattenheizkörpers - umgekehrt von der Heizmittelanschlussöffnung durch den Durchflussquerschnitt in den Sammelkanal, während der Abstandhalter zu dem hinteren Bereich für das Heizmittel verschlossen ist. Durch den Abstandhalter an der Entlüftungsöffnung strömt beim Entlüften des Plattenheizkörpers - bei der Erstbefüllung oder im Rahmen einer Wartung des Plattenheizkörpers - Luft aus dem vorderen Bereich des Sammelkanals durch den Durchflussquerschnitt zu der Entlüftungsöffnung. Die Wege von Heizmittel (bei regulärem Betrieb) und Luft (beim Entlüften) stimmen insoweit überein.In order to avoid variants - and thus both storage requirements as well as errors in production and installation - are used in such plate radiators with multiple heating plates in the upper collecting channel identical spacers in a mirror image arrangement at both openings. During operation of such a panel radiator, the heating medium flows through the spacer at the heating medium connection opening from the front region of the collecting duct through the flow cross section to the heating medium connection opening or vice versa, depending on the flow concept of the panel radiator the Heizmittelanschlussöffnung through the flow area in the collecting channel, while the spacer is closed to the rear area for the heating medium. Through the spacer at the vent opening when venting the panel radiator - at the Erstbefüllung or as part of a maintenance of the panel radiator - air flows from the front of the collecting channel through the flow cross-section to the vent. The paths of heating medium (during normal operation) and air (when venting) are consistent in this respect.

Derartige Plattenheizkörper und verschiedene Formen von Abstandhaltern sind allgemein, beispielsweise aus der AT 411 493 B bekannt. In den bekannten Plattenheizkörpern werden die Abstandhalter in dem oberen Sammelkanal so eingebaut, dass zwischen dem äußeren Umfang des Abstandhalters und den Innenseiten der Halbschalen jeweils zwei in etwa dreiecksförmige Durchlassquerschnitte des Sammelkanals offen bleiben. Beim Entlüften des bekannten Plattenheizkörpers strömt Luft aus dem hinteren Bereich des Sammelkanals - zu dem die Abstandhalter verschlossen sind - an dem Abstandhalter vorbei in den vorderen Bereich und von dort durch den Durchflussquerschnitt zu der Entlüftungsöffnung der Heizplatte.Such plate heaters and various forms of spacers are general, for example from the AT 411 493 B known. In the known panel radiators, the spacers are installed in the upper collecting channel so that between the outer circumference of the spacer and the inner sides of the half-shells in each case two approximately triangular passage cross-sections of the collecting channel remain open. When venting the known panel radiator air flows from the rear of the collecting channel - to which the spacers are closed - past the spacer in the front area and from there through the flow cross-section to the vent opening of the heating plate.

Der - aufgrund der Symmetrie der Heizplatte - um den Abstandhalter an der Heizmittelanschlussöffnung nicht vollständig verschlossene obere Sammelkanal vermindert jedoch den Wirkungsgrad des bekannten Plattenheizkörpers: Leckageströme des Heizmittels, das durch den Durchflussquerschnitt des Abstandhalters gezielt in den vorderen Bereich geleitet werden sollte, umfließen den Abstandhalter und gelangen in den hinteren Bereich des oberen Sammelkanals.However, the - due to the symmetry of the heating plate - to the spacer at the Heizmittelanschlussöffnung not completely closed upper collecting duct reduces the efficiency of the known panel radiator: leakage flows of the heating medium, which should be directed through the flow cross-section of the spacer targeted in the front area, flow around the spacer and arrive in the rear area of the upper collecting channel.

Aufgabetask

Der Erfindung liegt die Aufgabe zugrunde, den Wirkungsgrad des Plattenheizkörpers zu verbessern.The invention has for its object to improve the efficiency of the plate radiator.

Lösungsolution

Ausgehend von den bekannten Plattenheizkörpern wird nach der Erfindung vorgeschlagen, dass der Abstandhalter den oberen Sammelkanal in der Strömungsrichtung dicht ausfüllt und einen gegenüber dem Durchflussquerschnitt kleineren Entlüftungskanal aufweist, durch den beim Entlüften des Plattenheizkörpers Luft aus dem hinteren Bereich entgegen einer Strömungsrichtung der Luft aus dem vorderen Bereich in den Abstandhalter strömt. In einem erfindungsgemäßen Plattenheizkörper sind nennenswerte Leckageströme des Heizmittels um den Abstandhalter wirksam vermieden.Starting from the known plate radiators is proposed according to the invention that the spacer fills the upper collecting channel in the flow direction tight and has a relative to the flow cross-section smaller vent passage through which air flows from the rear area against a flow direction of the air from the front area in the spacer when venting the panel heater. In a panel heater according to the invention appreciable leakage currents of the heating means are effectively avoided by the spacer.

Alternativ zu der Einströmung der Luft während des Entlüftungsvorgangs in das Innere des Abstandhalters hinein kann auch ein Vorbeiströmen der Luft erfolgen, so dass die Luft aus dem hinteren Bereich - ebenfalls entgegen der Strömungsrichtung der Luft aus dem vorderen Bereich - an dem Durchflussquerschnitt bzw. dem inneren Freiraum des Abstandhalters vorbeiströmt, um auf diesem Wege in den vorderen Bereich zu gelangen, von wo aus - wie die dort befindliche Luft auch - ein Entweichen durch den Durchflussquerschnitt möglich ist. Wenn somit im Sinne der vorliegenden Anmeldung davon die Rede ist, dass der Abstandhalter den oberen Sammelkanal in der Strömungsrichtung dicht ausfüllt, so ist dies so zu verstehen, dass bezogen auf die im Stand der Technik üblichen freien Restquerschnitte um derartige Abstandhalter herum eine zunächst sehr gute Qualität der Abdichtung herbeigeführt wird. Gleichzeitig wird jedoch mit dem Entlüftungskanal ein in seiner Größe und Lage genau definierter Querschnitt geschaffen, der allein zur Erfüllung der Entlüftungsfunktion dient und während des eigentlichen Betriebs des Heizkörpers, d.h. bei Durchströmung mit dem Heizmedium Wasser, nicht in nennenswertem Umfang durchströmt wird. Um diese nach Medien selektierende Durchlass- bzw. Rückhaltefunktion des Abstandhalters zu erzielen, wird gemäß der Erfindung der Weg beschritten, die zunächst einmal sehr vollständige Abdichtung durch genau definierte Durchlassquerschnitte für die Luft wieder ein Stück weit rückgängig zu machen.As an alternative to the inflow of air into the interior of the spacer during the venting process, the air can also flow past, so that the air from the rear region - likewise counter to the flow direction of the air from the front region - at the flow cross section or the inner Free space of the spacer flows past to get in this way in the front area, from where - as the air there is also - an escape through the flow area is possible. Thus, if it is mentioned in the sense of the present application of the fact that the spacer fills the upper collecting channel in the flow direction tight, so this is to be understood that based on the usual in the prior art free residual cross sections around such spacers around a very good first Quality of the seal is brought about. At the same time, however, a precisely defined cross-section in its size and position is created with the venting channel, which alone serves to fulfill the venting function and during the actual operation of the radiator, i. When flowing through with the heating medium water, is not flowed through to any appreciable extent. In order to achieve this media-selective passage or retention function of the spacer, according to the invention, the way is taken to make the initially very complete seal by precisely defined passage cross-sections for the air back to some extent undone.

Bevorzugt verhindert in einem erfindungsgemäßen Plattenheizkörper der Entlüftungskanal ein Durchströmen des Heizmittels im Betrieb des Plattenheizkörpers. So ist jeder Leckagestrom des Heizmittels in den hinteren Bereich des oberen Sammelkanals vermieden. Die hohe Oberflächenspannung des üblicher Weise als Heizmittel verwendeten Wassers erlaubt in Verbindung mit dessen gegenüber Luft größere Viskosität unterschiedliche allgemein bekannte Gestaltungen der Entlüftungskanal, die ein Durchströmen wirksam vermeiden. Während des Entlüftens gelangt die Luft aus den zwei Bereichen auf zwei verschiedene Wege in den Durchflussquerschnitt des Abstandhalters und von dort zum Entlüftungsventil.Preferably, in a panel radiator according to the invention, the ventilation channel prevents the heating medium from flowing through during operation of the panel radiator. Thus, any leakage current of the heating medium is avoided in the rear region of the upper collecting channel. The high surface tension of the water commonly used as heating means, in combination with its greater viscosity vis-a-vis air, permits different generally known designs of the venting channel, which effectively avoid flow through. During venting, the air from the two areas passes to two different ones Paths in the flow cross-section of the spacer and from there to the vent valve.

Vorzugsweise weist in einem erfindungsgemäßen Plattenheizkörper der Abstandhalter mindestens ein den oberen Sammelkanal dichtendes Polymerdichtmittel auf. Ein solcher Abstandhalter dichtet auch ohne aufwändige Vorbereitung der Montagestelle den oberen Sammelkanal zuverlässig und dauerhaft ab.In a panel heater according to the invention, the spacer preferably has at least one polymer sealant which seals the upper collecting duct. Such a spacer seals reliably and permanently even without extensive preparation of the mounting location of the upper collecting duct.

in einer besonders vorteilhaften Ausgestaltung weist an einem erfindungsgemäßen Plattenheizkörper die Heizplatte an einem der Entlüftungsöffnung abgewandten Ende des oberen Sammelkanals eine Heizmittelanschlussöffnung und an dieser zwischen den Halbschalen einen mit dem Abstandhalter identischen weiteren Abstandhalter in gegenüber dem Abstandhalter spiegelbildlicher Anordnung auf. Ein solcher symmetrischer Plattenheizkörper erlaubt eine Verminderung der Variantenzahl und damit einen reduzierten Lagerbedarf der Heizplatten für die Herstellung des erfindungsgemäßen Plattenheizkörpers.In a particularly advantageous embodiment, the heating plate at a side facing away from the vent opening end of the upper collecting channel a Heizmittelanschlussöffnung and at this between the half shells identical to the spacer further spacer in relation to the spacer mirror-image arrangement on a panel heater according to the invention. Such a symmetrical plate radiator allows a reduction in the number of variants and thus a reduced storage requirement of the heating plates for the production of the panel heater according to the invention.

Gemäß einer vorteilhaften Ausführungsform ist ein Entlüftungskanal in einem aus einem metallischen Ring gebildeten Stützbereich des Abstandhalters gegenüber der mindestens einen Durchflussöffnung angeordnet. In diesem Fall strömt während der Entlüftung die Luft von gegenüber liegenden Seiten her, nämlich zum einen aus dem vorderen und zum anderen aus dem hinteren Bereich, in den inneren Freiraum des Abstandhalters und von dort durch eine Wandung der Heizplatte aus dieser heraus.According to an advantageous embodiment, a ventilation channel is arranged in a support region of the spacer formed of a metallic ring with respect to the at least one flow opening. In this case, during the venting, the air flows from opposite sides, firstly from the front and second from the rear, into the inner space of the spacer and from there through a wall of the heating plate.

Um die Ventilfunktion des Entlüfungskanals im normalen Heizbetrieb zu verbessern, kann der Stützbereich im Bereich des Entlüftungskanals eine gegenüber den übrigen Bereichen vergrößerte Wandstärke aufweisen. Auch kann der Querschnitt des Entlüftungskanals von der Umgebung des Abstandhalters, d.h. typischerweise von dem hinteren Bereich des oberen Sammelkanals zu dem inneren Freiraum des Abstandhalters hin abnehmen. Eine Kegelform des Entlüftungskanals ist hier eine besonders bevorzugte Ausführungsform.In order to improve the valve function of the venting duct during normal heating operation, the support area in the region of the venting duct can have an increased wall thickness compared to the other areas. Also, the cross-section of the venting channel may depend on the environment of the spacer, i. typically decrease from the rear of the upper collection channel to the inner space of the spacer. A conical shape of the venting channel is here a particularly preferred embodiment.

Eine alternative Ausführungsform des Entlüftungskanals besteht darin, dass dieser in einem sich außenseitig an einem Stützbereich anschließenden Polymerdichtmittel angeordnet ist und tangential zu dem ungefähr ringförmigen Stützbereich verläuft. In diesem Fall besteht keine Verbindung zwischen dem hinteren Bereich des oberen Sammelkanals und dem inneren Freiraum des Abstandhalters, sondern es findet eine Art Überströmen von dem hinteren in den vorderen Bereich des Sammelkanals statt, von wo aus die Luft durch den Durchflussquerschnitt aus der jeweiligen Heizplatte entweichen kann. Der Abstandhalter bzw. der darin integrierte Entlüftungskanal besitzt in diesem Fall eine Art Bypass-Funktion.An alternative embodiment of the venting channel is that it is arranged in a polymer sealant which adjoins a support region on the outside and runs tangentially to the approximately annular support region. In this case, there is no connection between the rear portion of the upper collecting channel and the inner space of the spacer, but there is a kind of overflow of the rear into the front region of the collecting channel, from where the air can escape through the flow cross-section of the respective heating plate. The spacer or the vent channel integrated therein has a kind of bypass function in this case.

Um ein unbeabsichtigtes Kollabieren oder auch ein unkontrollierbares Reduzieren des freien Querschnitts des im Polymerdichtmittel befindlichen Entlüftungskanals zu vermeiden, kann in dem Polymerdichtmittel ein Rohrstück aus einem Material mit deutlich größerer Steifigkeit als die des Polymermaterials eingebettet sein. Typischerweise wird hier ein Stück eines metallischen Röhrchens verwendet werden.In order to avoid unintentional collapse or uncontrollable reduction of the free cross section of the vent channel located in the polymer sealant, in the polymer sealant, a pipe section may be embedded in a material having a significantly greater rigidity than that of the polymer material. Typically, a piece of metallic tube will be used here.

Ein Entlüftungskanal in dem Polymerdichtmittel kann alternativ oder zusätzlich zu einem Entlüftungskanal in dem metallischen Stützbereich des Abstandhalters zur Anwendung kommen.A vent channel in the polymer sealant may alternatively or in addition to a vent channel in the metallic support region of the spacer are used.

Ein in dem Polymerdichtmittel angeordneter Entlüftungskanal sollte möglichst weit oben in dem oberen Sammelkanal angeordnet sein, um dort ein Überströmen von Luft aus dem hinteren in den vorderen Bereich zu ermöglichen.A vent channel arranged in the polymer sealant should be arranged as far up in the upper collecting channel as possible in order to allow air to flow from the rear to the front region.

Ausführungsbeispielembodiment

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen erläutert. Es zeigen

Fig. 1
eine Seitenansicht eines erfindungsgemäßen Plattenheizkörpers,
Fig. 2
einen Schnitt einer ersten erfindungsgemäßen Heizplatte,
Fig. 3a und b
zwei Details des Schnittes der erfindungsgemäßen Heizplatte,
Fig. 4a bis d
vier Ansichten eines ersten erfindungsgemäßen Abstandhalters
Fig. 5
eine Explosionsdarstellung des ersten Abstandhalters,
Fig. 6a bis d
vier Ansichten eines zweiten erfindungsgemäßen Abstandhalters,
Fig. 7
eine Explosionsdarstellung des zweiten Abstandhalters,
Fig. 8a und b
zwei Schnitte des zweiten Abstandhalters,
Fig. 9
ein Detail eines Schnitts einer zweiten erfindungsgemäßen Heizplatte,
Fig. 10a
eine perspektivische Ansicht eines dritten erfindungsgemäßen Abstandhal- ters und
Fig. 10b
einen Schnitt durch den dritten Abstandhalter.
The invention will be explained below with reference to exemplary embodiments. Show it
Fig. 1
a side view of a panel heater according to the invention,
Fig. 2
a section of a first heating plate according to the invention,
Fig. 3a and b
two details of the section of the heating plate according to the invention,
Fig. 4a to d
four views of a first spacer according to the invention
Fig. 5
an exploded view of the first spacer,
Fig. 6a to d
four views of a second spacer according to the invention,
Fig. 7
an exploded view of the second spacer,
Fig. 8a and b
two sections of the second spacer,
Fig. 9
a detail of a section of a second heating plate according to the invention,
Fig. 10a
a perspective view of a third spacer according to the invention and
Fig. 10b
a section through the third spacer.

Der in Figur 1 gezeigte erfindungsgemäße Plattenheizkörper 1 weist drei Heizplatten 2, 3 auf. Die Heizplatten 2, 3 sind aus je zwei Halbschalen 4 aus durch Tiefziehen profiliertem Stahlblech und an Heizmittelanschlussöffnungen mit Heizmittelrohren 5 verschweißt. Das Heizmittel wird dem Plattenheizkörper 1 durch den Zulauf 6 (an einer unteren, mittigen Verteilergarnitur) zugeführt, durchläuft zunächst die Frontplatte 2 und danach die beiden rückwärtigen Heizplatten 3 und wird durch den Ablauf 7 (an der unteren Verteilergarnitur) aus dem Plattenheizkörper 1 abgeleitet. Die Heizmittelanschlussöffnungen und das Heizmittel sind nicht dargestellt.The in FIG. 1 shown plate heater 1 has three heating plates 2, 3. The heating plates 2, 3 are welded from two half-shells 4 profiled by deep drawing steel sheet and to Heizmittelanschlussöffnungen with Heizmittelrohren 5. The heating means is supplied to the panel radiator 1 through the inlet 6 (at a lower, central distribution set), first passes through the front panel 2 and then the two rear heating plates 3 and is discharged through the outlet 7 (at the lower distributor set) from the plate radiator 1. The Heizmittelanschlussöffnungen and the heating means are not shown.

Die in Figur 2 im Schnitt dargestellte erfindungsgemäße Heizplatte 2 ist die Frontplatte des Plattenheizkörpers 1. Am Zulauf 6 weist die Heizplatte 2 einen nur aus einem metallischen, aus Stahl gefertigten Stützbereich 8 bestehenden Abstandhalter 9 auf, an der Oberseite 10 des Plattenheizkörpers 1 wird das Heizmittel durch zwei identische, symmetrisch angeordnete erfindungsgemäße Abstandhalter 11 abgeleitet, von denen einer in den Figuren 3a und 3b in zwei Detailschnitten durch die Heizplatte 2 und in den Figuren 4a bis 4d und 5 einzeln in verschiedenen Ansichten in dargestellt ist.In the FIG. 2 At the inlet 6, the heating plate 2 has a consisting only of a metallic, made of steel support area 8 spacers 9, on the top 10 of the panel radiator 1, the heating means by two identical, symmetrically arranged spacer 11 according to the invention derived, one of which in the FIGS. 3a and 3b in two detail sections through the heating plate 2 and in the FIGS. 4a to 4d and 5 is shown individually in different views in FIG.

Der erfindungsgemäße Abstandhalter 11 teilt den oberen Sammelkanal 13 in einen vorderen Bereich V vor und einen hinteren Bereich H hinter dem Abstandhalter 11. Ausgehend von dem Abstandhalter 9 am Zulauf 6 strömt das Heizmittel im Wesentlichen zunächst aufwärts durch einen zentralen Heizkanal 12 in den oberen Sammelkanal 13, von diesem abwärts durch mehrere Heizkanäle 14 in den unteren Sammelkanal 15 und schließlich wieder aufwärts durch zwei periphere Heizkanäle 16 und durch die erfindungsgemäßen Abstandhalter 11 in die rückwärtigen Heizplatten.The spacer 11 according to the invention divides the upper collecting channel 13 into a front region V and a rear region H behind the spacer 11. Starting from the spacer 9 at the inlet 6, the heating medium flows essentially upwards through a central heating channel 12 into the upper collecting channel 13 from this downwards through a plurality of heating channels 14 in the lower collecting channel 15 and finally again upwards by two peripheral heating channels 16 and by the inventive spacers 11 in the rear heating plates.

Der erfindungsgemäße Abstandhalter 11 weist einen aus einem Stahlrohrabschnitt umgeformten Stützbereich 17 auf und ein den Stützbereich 17 umschließendes, ringförmig spritzgegossenes Polymerdichtmittel 18 aus einem Silikonelastomer.The spacer 11 according to the invention has a support region 17 formed from a steel pipe section and an annular injection-molded polymer sealant 18 made of a silicone elastomer enclosing the support region 17.

Der Stützbereich 17 weist einen zylinderförmigen Mantel 19, zwei kreisringförmige Stützschultern 20 und in diesen jeweils eine Bohrung 21 auf. Der Mantel 19 weist eine im Wesentlichen rechteckige Durchflussöffnung 22 mit 13 x 5 mm Querschnitt für das Heizmittel und dieser gegenüber eine kleine Entlüftungskanal 23 mit 2 mm Durchmesser auf. Vorzugsweise sollte der Durchmesser der Entlüftungskanal zwischen 1,5 mm und 2,5 mm betragen.The support region 17 has a cylindrical jacket 19, two annular support shoulders 20 and in each case a bore 21. The jacket 19 has a substantially rectangular flow opening 22 with 13 x 5 mm cross-section for the heating medium and this against a small vent channel 23 with 2 mm diameter. Preferably, the diameter of the venting channel should be between 1.5 mm and 2.5 mm.

Das Polymerdichtmittel 18 weist eine kreiszylindrische Innenfläche 24 mit einem leichten Untermaß gegenüber dem Mantel 19 des Stützbereichs 17 auf. Das Polymerdichtmittel 18 weist einen rechteckigen Querschnitt mit außen leicht gefassten Kanten 25 und zwei einander gegenüber liegenden, spitz zulaufenden Dichtelementen 26 auf. An dem Polymerdichtmittel 18 sind Durchbrüche 27 über der Durchflussöffnung 22 und über dem Entlüftungskanal 23 des Stützbereichs 17 ausgebildet. In dem in den Figuren 3a und 3b dargestellten eingebauten Zustand verschließen die Dichtelemente 26 des Polymerdichtmittels 18 zwei Abschnitte 28 eines Durchlassquerschnitts 29 zwischen dem oberen Sammelkanal 13 und dem peripheren Heizkanal 16. Dies geschieht dadurch, dass der Abstandhalter 11 zusammen mit dem Dichtmittel 18 den Querschnitt des Sammelkanals 13 zwischen dem letzten und dem vorletzten Heizkanal 16 versperrt.The polymer sealant 18 has a circular cylindrical inner surface 24 with a slight undersize relative to the jacket 19 of the support region 17. The polymer sealant 18 has a rectangular cross-section with edges 25 that are slightly outside and two oppositely directed, tapered sealing elements 26. Openings 27 are formed above the flow opening 22 and above the vent channel 23 of the support area 17 at the polymer sealant 18. In the in the FIGS. 3a and 3b illustrated installed state seal the sealing elements 26 of the polymer sealant 18 two sections 28 of a passage section 29 between the upper collecting channel 13 and the peripheral heating channel 16. This happens in that the spacer 11 together with the sealing means 18, the cross section of the collecting channel 13 between the last and penultimate heating channel 16 blocked.

Der ringförmige Stützbereich umschließt einen inneren Freiraum F des Abstandhalters 11, durch den Medien wie Wasser als Heizmittel oder Luft strömen können.The annular support area encloses an inner space F of the spacer 11 through which media such as water as heating medium or air can flow.

Anstelle des ersten Abstandhalters 11 kann der in den Figuren 6a bis 6d und 7 in verschiedenen Ansichten und in den Figuren 8a und 8b in zwei Schnitten dargestellte weitere erfindungsgemäße Abstandhalter 30, wie in Figur 9 im eingebauten Zustand dargestellt, in einer erfindungsgemäßen Heizplatte 31 eines nicht weiter dargestellten erfindungsgemäßen Plattenheizkörpers zum Einsatz kommen.Instead of the first spacer 11 may in the FIGS. 6a to 6d and 7 in different views and in the FIGS. 8a and 8b shown in two sections further inventive spacer 30, as in FIG. 9 shown in the installed state, come in a heating plate 31 according to the invention of a plate heater according to the invention not shown used.

Der zweite Abstandhalter 30 weist einen anderen, aus einem Stahlrohrabschnitt umgeformten Stützbereich 32 auf und ein in zwei getrennten, keilförmigen Dichtelementen 33 spritzgegossenes Polymerdichtmittel 34 aus einem Silikonelastomer.The second spacer 30 has another support region 32 formed from a steel pipe section and a polymer sealant 34 made of a silicone elastomer injection-molded in two separate, wedge-shaped sealing elements 33.

Der Stützbereich 32 weist im Wesentlichen die Maße des Stützbereiches 17 des ersten erfindungsgemäßen Abstandhalters 11 auf. Der Mantel 35 des Stützbereichs 32 weist zwei kreisförmige Durchflussöffnungen 36 von 6 mm Durchmesser für das Heizmittel und dieser gegenüber einen kleinen Entlüftungskanal 37 auf. Außerdem ist der Stützbereich 32 mit zwei gegenüber liegenden rechteckigen Rastöffnungen 38 mit einem angepassten Querschnitt für die Dichtelemente 33 versehen.The support region 32 essentially has the dimensions of the support region 17 of the first spacer 11 according to the invention. The jacket 35 of the support region 32 has two circular flow openings 36 of 6 mm diameter for the heating means and this opposite a small vent passage 37. In addition, the support area 32 with two opposite rectangular detent openings 38 provided with an adapted cross section for the sealing elements 33.

Die Dichtelemente 33 weisen jeweils eine leicht kreiszylindrisch gekrümmte Innenfläche 39 und einen Halteabschnitt in Form eines Rastnippels 40 zum Verbinden mit dem Stützbereich 32 auf. In dem in Figur 9 dargestellten eingebauten Zustand verschließen die Dichtelemente 33 des Polymerdichtmittels 34 wiederum zwei Abschnitte 41 eines Durchlassquerschnitts 42 zwischen dem oberen Sammelkanal und dem peripheren Heizkanal der erfindungsgemäßen Heizplatte 31.The sealing elements 33 each have a slightly circular-cylindrical curved inner surface 39 and a holding portion in the form of a locking nipple 40 for connection to the support portion 32. In the in FIG. 9 illustrated installed state seal the sealing elements 33 of the polymer sealant 34 again two sections 41 of a passage cross section 42 between the upper collecting channel and the peripheral heating channel of the heating plate 31 according to the invention.

Im Betrieb des erfindungsgemäßen Plattenheizkörpers 1 strömt das flüssige Heizmittel ausschließlich durch den Durchflussquerschnitt des Durchbruchs 27 des ersten Abstandhalters 11 oder durch die Durchflussöffnungen 36 des zweiten Abstandhalters 30. Unter den vorherrschenden Druckverhältnissen verhindert die Oberflächenspannung bzw. größere Viskosität des Heizmittels ein Durchströmen der jeweiligen Entlüftungskanäle 23, 37.During operation of the panel heater 1 according to the invention, the liquid heating medium flows exclusively through the flow cross section of the opening 27 of the first spacer 11 or through the flow openings 36 of the second spacer 30. Under the prevailing pressure conditions, the surface tension or greater viscosity of the heating means prevents the respective ventilation channels 23 from flowing through , 37.

Die Entlüftungskanäle 23, 37 treten nur beim Entlüften und zwar sowohl beim erstmaligen Befüllen, als auch in der Wartung des erfindungsgemäßen Plattenheizkörpers 1 in Funktion: In dem peripheren Heizkanal 16 angesammelte Luft entweicht über den vorderen Bereich V des oberen Sammelkanals 13 durch den Durchbruch 27 des ersten Abstandhalters 11 oder die Durchflussöffnungen 36 des zweiten Abstandhalters 30. In dem hinteren Bereich H des oberen Sammelkanals 13 angesammelte Luft entweicht über den jeweiligen Entlüftungskanal 23, 37.The venting channels 23, 37 occur only when venting, both during initial filling, and in the maintenance of the panel heater 1 according to the invention in function: in the peripheral heating channel 16 accumulated air escapes through the front region V of the upper collecting channel 13 through the opening 27 of First spacer 11 or the flow openings 36 of the second spacer 30. In the rear portion H of the upper collecting channel 13 accumulated air escapes through the respective vent channel 23, 37th

In den Figuren 10a und 10b ist schließlich noch eine dritte Ausführungsform eines Abstandhalters 43 dargestellt. Wie auch bei dem Ausführungsbeispiel gemäß den Figuren 6a bis 6d und 7 sowie 8a und 8b besitzt der Abstandhalter 43 einen metallischen Stützbereich 44 und zwei sich darin außen nach oben sowie nach unten anschließende Dichtelemente 45 aus einem Polymerdichtmittel 46. Bei der hier gezeigten alternativen Ausführungsform ist ein Entlüftungskanal 47 in dem Inneren des oberen Dichtelements 45 ausgebildet. Der Entlüftungskanal 47 verläuft tangential zu dem ringförmig gestalteten Stützbereich 44. Der Entlüftungskanal 47 stellt daher - im Gegensatz zu dem weiter unten beschriebenen zweiten Entlüftungskanal 48 - keine Verbindung zwischen der äußeren Umgebung des Abstandhalters (insbesondere zwischen dem vorderen Bereich V oder dem hinteren Bereich H) und dem im Inneren des Stützbereichs 44 angeordneten Freiraum F des Abstandhalters 43 her. Vielmehr erfüllt der Entlüftungskanal 47 ausschließlich eine Bypass-Funktion, indem er den vorderen Bereich V und den hinteren Bereich H in dem oberen Sammelkanal miteinander verbindet. Um zu verhindern, dass der Entlüftungskanal 47 während der Herstellung des Heizkörpers beim Zusammenfügen und Verschweißen der beiden Halbschalen der Heizplatte unkontrollierbar verkleinert oder gänzlich verschlossen wird, wird die innere Mantelfläche des Entlüftungskanals 47 von einem aus Metall bestehenden Rohrstück 49 gebildet, das wie eine Art eingebettetes Stützelement wirkt.In the Figures 10a and 10b Finally, a third embodiment of a spacer 43 is shown. As in the embodiment according to the FIGS. 6a to 6d and 7 and 8a and 8b, the spacer 43 has a metallic support portion 44 and two therein sealing elements 45 outwardly upwardly and downwardly from a polymer sealant 46. In the alternative embodiment shown here, a vent channel 47 is formed in the interior of the upper sealing element 45. The venting channel 47 extends tangentially to the annular shaped support portion 44. The venting channel 47 therefore - in contrast to the second venting channel 48 described below - no connection between the outer environment of the spacer (in particular between the front region V or Rear area H) and arranged in the interior of the support portion 44 space F of the spacer 43 ago. Rather, the vent passage 47 exclusively performs a bypass function by connecting the front portion V and the rear portion H in the upper header. In order to prevent the vent channel 47 is uncontrollably reduced or completely closed during the manufacture of the radiator during assembly and welding of the two half-shells of the heating plate, the inner circumferential surface of the vent channel 47 is formed by a metal pipe section 49, which embedded as a kind Support element acts.

Der zweite Entlüftungskanal 48 des Abstandhalters 43 besitzt eine kegelförmige Gestalt, wobei sich der Querschnitt von der äußeren Umgebung des Abstandhalters 43 auf den inneren Freiraum F hin verjüngt. Im Bereich des Entlüftungskanals 48 ist die Wandstärke des Stützbereichs 44 vergrößert, wobei der Entlüftungskanal 48 zum inneren Freiraum F hin von einem spitz zulaufenden Kragen 50 umgeben ist. Sowohl die Querschnittsgestalt des Entlüftungskanals 48 selbst als auch die des Kragens 50 verhindern während des normalen Heizbetriebs einen Durchtritt von Wasser aus dem inneren Freiraum F des Abstandhalters 43 in den hinteren Teil des oberen Sammelkanals.The second vent channel 48 of the spacer 43 has a conical shape, wherein the cross section of the outer periphery of the spacer 43 tapers to the inner space F out. In the region of the venting channel 48, the wall thickness of the support region 44 is increased, wherein the venting channel 48 is surrounded by a tapered collar 50 toward the inner free space F. Both the cross-sectional shape of the vent channel 48 itself and that of the collar 50 prevent passage of water from the internal clearance F of the spacer 43 into the rear part of the upper collecting channel during normal heating operation.

Aus Figur 10b ist zu erkennen, dass die Durchströmung sowohl des in dem Polymerdichtmittel 46 befindlichen Entlüftungskanals 47 als auch des in dem metallischen Stützbereich 44 befindlichen Entlüftungskanals 48 jeweils in Richtung des Pfeils 51 erfolgt, wohingegen die Strömung der Luft aus dem vorderen Bereich V in den inneren Freiraum F des Abstandhalters 43 in Richtung des Pfeils 52, also in entgegen gesetzte Richtung erfolgt.Out FIG. 10b It can be seen that the flow through both of the venting channel 47 located in the polymer sealant 46 and the venting channel 48 located in the metallic support region 44 takes place respectively in the direction of the arrow 51, whereas the flow of the air from the front region V into the inner free space F of the spacer 43 in the direction of the arrow 52, that is, in the opposite direction.

In den Figuren sind

1
Plattenheizkörper
2
Heizplatte
3
Heizplatte
4
Halbschale
5
Heizmittelrohr
6
Zulauf
7
Ablauf
8
Stützbereich
9
Abstandhalter
10
Oberseite
11
Abstandhalter
12
Heizkanal
13
oberer Sammelkanal
14
Heizkanal
15
unterer Sammelkanal
16
Heizkanal
17
Stützbereich
18
Polymerdichtmittel
19
Mantel
20
Stützschulter
21
Bohrung
22
Durchflussöffnung
23
Entlüftungskanal
24
Innenfläche
25
Kante
26
Dichtelement
27
Durchbruch
28
Abschnitt
29
Durchlassquerschnitt
30
Abstandhalter
31
Heizplatte
32
Stützbereich
33
Dichtelement
34
Polymerdichtmittel
35
Mantel
36
Durchflussöffnung
37
Entlüftungskanal
38
Rastöffnungen
39
Innenfläche
40
Rastnippel
41
Abschnitt
42
Durchlassquerschnitt
43
Abstandhalter
44
Stützbereich
45
Dichtelement
46
Polymerdichtmittel
47
Entlüftungskanal
48
Entlüftungskanal
49
Rohrstück
50
Kragen
51
Pfeil
52
Pfeil
S
Stützfläche
I
Innenfläche
V
vorderer Bereich
H
hinterer Bereich
F
Freiraum
In the figures are
1
panel radiators
2
heating plate
3
heating plate
4
half shell
5
Heizmittelrohr
6
Intake
7
procedure
8th
support area
9
spacer
10
top
11
spacer
12
heating duct
13
upper collection channel
14
heating duct
15
lower collection channel
16
heating duct
17
support area
18
Polymer sealant
19
coat
20
supporting shoulder
21
drilling
22
Flow opening
23
vent channel
24
palm
25
edge
26
sealing element
27
breakthrough
28
section
29
Passage section
30
spacer
31
heating plate
32
support area
33
sealing element
34
Polymer sealant
35
coat
36
Flow opening
37
vent channel
38
latching openings
39
palm
40
Rest nipple
41
section
42
Passage section
43
spacer
44
support area
45
sealing element
46
Polymer sealant
47
vent channel
48
vent channel
49
pipe section
50
collar
51
arrow
52
arrow
S
support surface
I
palm
V
front area
H
the backstage area
F
free space

Claims (9)

Plattenheizkörper (1) mit mindestens einer aus zwei Halbschalen (4) verbundenen Heizplatte (2), wobei zwischen den Halbschalen (4) ein oberer Sammelkanal (13), parallel zu dem oberen Sammelkanal (13) ein unterer Sammelkanal (15) und den oberen Sammelkanal (13) und den unteren Sammelkanal (15) verbindende Heizkanäle (12, 13, 16) für ein Heizmittel ausgebildet sind, und mit einer an dem oberen Sammelkanal (13) ausgebildeten Entlüftungsöffnung der Heizplatte (2), sowie mit einem Abstandhalter (11, 30, 43) zwischen den Halbschalen (4) an der Entlüftungsöffnung, der den oberen Sammelkanal (13) in einen vor dem Abstandhalter (11, 30, 43) angeordneten vorderen Bereich (V) und einen hinter dem Abstandhalter (11, 30, 43) angeordneten hinteren Bereich (H) teilt, und der einen Durchflussquerschnitt aufweist, durch den beim Entlüften des Plattenheizkörpers (1) Luft aus dem vorderen Bereich (V) in den Abstandhalter (11, 30, 43) und aus diesem durch die Entlüftungsöffnung aus der Heizplatte (2) oder in die umgekehrte Richtung strömt, wobei der Abstandhalter (11, 30, 43) ein Durchströmen des Heizmittels zwischen dem hinteren Bereich (H) und der Entlüftungsöffnung im Wesentlichen verhindert, dadurch gekennzeichnet, dass der Abstandhalter (11, 30, 43) den oberen Sammelkanal (13) in der Strömungsrichtung dicht ausfüllt und einen gegenüber dem Durchflussquerschnitt kleineren Entlüftungskanal (23, 37, 47, 48) aufweist, durch den beim Entlüften des Plattenheizkörpers (1) Luft aus dem hinteren Bereich (H) entgegen einer Strömungsrichtung der Luft aus dem vorderen Bereich (V) in den Abstandhalter (11, 30, 43) hinein oder an dessen Durchflussquerschnitt vorbei strömt.Plate heater (1) with at least one of two half-shells (4) connected heating plate (2), wherein between the half shells (4) has an upper collecting channel (13), parallel to the upper collecting channel (13), a lower collecting channel (15) and the upper Heating channel (12, 13, 16) connecting the heating channel (12) and the lower collecting channel (15) are formed for a heating means, and with a vent opening of the heating plate (2) formed on the upper collecting channel (13) and with a spacer (11 , 30, 43) between the half-shells (4) at the vent opening, the upper collecting channel (13) in front of the spacer (11, 30, 43) arranged front portion (V) and behind the spacer (11, 30, 43) arranged rear portion (H), and having a flow cross-section through the venting of the panel radiator (1) air from the front region (V) in the spacer (11, 30, 43) and out of this through the vent opening the heating plate te (2) or in the opposite direction, wherein the spacer (11, 30, 43) substantially prevents the heating medium from flowing through between the rear region (H) and the ventilation opening, characterized in that the spacer (11, 30, 43) densely fills the upper collecting channel (13) in the flow direction and has a ventilation channel (23, 37, 47, 48) which is smaller than the flow cross section, through which air is vented from the rear region (H) when venting the panel heating element (1) Flow direction of the air from the front region (V) in the spacer (11, 30, 43) into or flows past the flow cross-section over. Plattenheizkörper (1) nach dem vorgenannten Anspruch, dadurch gekennzeichnet, dass die Entlüftungskanal (23, 27, 47, 48) ein Durchströmen des Heizmittels im Betrieb des Plattenheizkörpers (1) im Wesentlichen verhindert.Panel radiator (1) according to the preceding claim, characterized in that the venting channel (23, 27, 47, 48) substantially prevents a flow through the heating means during operation of the panel radiator (1). Plattenheizkörper (1) nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass der Abstandhalter (11, 30, 43) mindestens ein den oberen Sammelkanal (13) dichtendes Polymerdichtmittel (18, 34, 46) aufweist.Plate heater (1) according to any one of the preceding claims, characterized in that the spacer (11, 30, 43) at least one the upper collecting channel (13) sealing polymer sealant (18, 34, 46). Plattenheizkörper (1) nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass die Heizplatte (2) an einem der Entlüftungsöffnung abgewandten Ende des oberen Sammelkanals (13) eine Heizmittelanschlussöffnung und an dieser zwischen den Halbschalen (4) einen mit dem Abstandhalter (11, 30, 43) identischen weiteren Abstandhalter (11, 30, 43) in gegenüber dem Abstandhalter (11, 30, 43) spiegelbildlicher Anordnung aufweist.Panel radiator (1) according to one of the preceding claims, characterized in that the heating plate (2) at one of the vent opening facing away from the upper collecting channel (13) a Heizmittelanschlussöffnung and at this between the half shells (4) one with the spacer (11, 30 , 43) has identical further spacers (11, 30, 43) in relation to the spacer (11, 30, 43) mirror-image arrangement. Plattenheizkörper (1) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass ein Entlüftungskanal (23, 37, 48) in einem aus einem metallischen Ring gebildeten Stützbereich (17, 32, 44) des Abstandhalters (10, 30, 43) gegenüber der mindestens einen Durchflussöffnung (36) angeordnet ist.Panel radiator (1) according to one of claims 1 to 4, characterized in that a vent channel (23, 37, 48) in a formed of a metallic ring support portion (17, 32, 44) of the spacer (10, 30, 43) opposite the at least one flow opening (36) is arranged. Plattenheizkörper (1) nach Anspruch 5, dadurch gekennzeichnet, dass der Stützbereich (44) im Bereich des Entlüftungskanals (48) eine gegenüber den übrigen Bereichen vergrößerte Wandstärke aufweist.Panel radiator (1) according to claim 5, characterized in that the support region (44) in the region of the ventilation channel (48) has an opposite to the other areas increased wall thickness. Plattenheizkörper (1) nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass der Querschnitt des Entlüftungskanals (48) von der äußeren Umgebung des Abstandhalters (43) zu einem inneren Freiraum (F) hin abnimmt.Panel radiator (1) according to claim 5 or 6, characterized in that the cross-section of the vent channel (48) decreases from the outer environment of the spacer (43) to an inner free space (F). Plattenheizkörper (1) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass ein Entlüftungskanal (47) in einem sich außenseitig an einen Stützbereich (44) anschließenden Polymerdichtmittel (46) angeordnet ist und tangential zu dem ungefähr ringförmigen Stützbereich verläuft.Panel radiator (1) according to one of claims 1 to 7, characterized in that a vent channel (47) in a outside of a support region (44) adjoining polymer sealant (46) is arranged and extends tangentially to the approximately annular support region. Plattenheizkörper (1) nach Anspruch 8, dadurch gekennzeichnet, dass der Entlüftungskanal (47) von einem in dem Polymerdichtmittel (46) eingebetteten Rohrstück (49) aus einem Material mit deutlich größerer Steifigkeit als die des Polymermaterials gebildet ist.Panel radiator (1) according to claim 8, characterized in that the venting channel (47) is formed by a in the polymer sealant (46) embedded tube piece (49) made of a material having a significantly greater rigidity than that of the polymer material.
EP10163063A 2009-05-18 2010-05-18 Plate radiator Active EP2256426B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10163063T PL2256426T3 (en) 2009-05-18 2010-05-18 Plate radiator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202009007148U DE202009007148U1 (en) 2009-05-18 2009-05-18 panel radiators

Publications (3)

Publication Number Publication Date
EP2256426A2 true EP2256426A2 (en) 2010-12-01
EP2256426A3 EP2256426A3 (en) 2012-01-04
EP2256426B1 EP2256426B1 (en) 2012-11-28

Family

ID=42382813

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (3)

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EP (1) EP2256426B1 (en)
DE (1) DE202009007148U1 (en)
PL (1) PL2256426T3 (en)

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DE102014111739A1 (en) 2014-08-18 2016-02-18 Caradon Stelrad B.V. Spacer and method for its production

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JP5621883B1 (en) * 2013-06-03 2014-11-12 ダイキン工業株式会社 Panel radiator manufacturing method, backup member, and panel radiator
CN104266257A (en) * 2014-09-22 2015-01-07 天津金力通金属制品有限公司 Radiator fin head joint

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DE10223790B4 (en) * 2002-05-29 2005-08-18 Bbt Thermotechnik Gmbh panel radiators
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ITUD20040125A1 (en) * 2004-06-14 2004-09-14 Commital Sami Spa PROCEDURE FOR REALIZING A SPACER ELEMENT TO BE INSERTED INSIDE A RADIANT PANEL, AND SPACER ELEMENT SO REALIZED
DE202004019163U1 (en) * 2004-12-07 2005-02-10 Kermi Gmbh Multi-row radiator, in particular flat radiator
DE202006017672U1 (en) * 2006-11-17 2007-02-08 Kermi Gmbh Support unit for e.g. planar radiator, has leakage opening running through flow through chamber or discharging into chamber, where opening has larger cross-sectional area than other opening arranged in outer circumference of support unit
DE102007037559A1 (en) * 2007-08-09 2009-02-12 H.M. Heizkörper GmbH + Co. KG Water-filled radiator, comprises series of parallel, spaced panels with headers forming end-projections in which tube-inserts are located

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AT411493B (en) 1999-10-15 2004-01-26 Vogel & Noot Waermetechnik Ag PANEL RADIATORS AND SUPPORT FOR IT

Cited By (2)

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Publication number Priority date Publication date Assignee Title
DE102014111739A1 (en) 2014-08-18 2016-02-18 Caradon Stelrad B.V. Spacer and method for its production
EP2995872A1 (en) 2014-08-18 2016-03-16 Caradon Stelrad B.V. Spacer and method for its manufacture

Also Published As

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DE202009007148U1 (en) 2010-10-14
PL2256426T3 (en) 2013-04-30
EP2256426B1 (en) 2012-11-28
EP2256426A3 (en) 2012-01-04

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