EP0060293A1 - Device for use in plants for heating or cooling of room-limiting surfaces - Google Patents

Device for use in plants for heating or cooling of room-limiting surfaces

Info

Publication number
EP0060293A1
EP0060293A1 EP81902669A EP81902669A EP0060293A1 EP 0060293 A1 EP0060293 A1 EP 0060293A1 EP 81902669 A EP81902669 A EP 81902669A EP 81902669 A EP81902669 A EP 81902669A EP 0060293 A1 EP0060293 A1 EP 0060293A1
Authority
EP
European Patent Office
Prior art keywords
tubes
sheet
heating
floor
assembly
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.)
Withdrawn
Application number
EP81902669A
Other languages
German (de)
French (fr)
Inventor
Rolf Jacobsen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0060293A1 publication Critical patent/EP0060293A1/en
Withdrawn legal-status Critical Current

Links

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
    • F24D3/00—Hot-water central heating systems
    • F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor heating
    • F24D3/14—Tube and panel arrangements for ceiling, wall, or underfloor heating incorporated in a ceiling, wall or floor
    • 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
    • F24D3/00—Hot-water central heating systems
    • F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor heating
    • F24D3/14—Tube and panel arrangements for ceiling, wall, or underfloor heating incorporated in a ceiling, wall or floor
    • F24D3/148—Tube and panel arrangements for ceiling, wall, or underfloor heating incorporated in a ceiling, wall or floor with heat spreading plates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

  • the invention relates to a device for use in plants for heating or cooling of room-limiting surfaces, particularly floor heating plants comprising a plurality of tubes for transport of heating medium, such as hot water, and a plurality of heat-conducting sheet elements provided with a number of substantially parallel channels for receiving the tubes in heat-conducting connection therewith, for transferring heat to an overlying floor surface.
  • the water temperature which is necessary in the tubes appears to be 50 - 70oC in order to achieve a temperature of 25oC on the floor surface, which is a minimum to supply sufficient heat to the room.
  • alternative energy sources such as solar heat, heat pump, cooling water for machines and the like
  • the object of the invention is to provide a device giving a very good transfer of heat between heating tubes and floor surface, so that heating media with a low temperature can be used, at the same time as the device is structurally simple and rational and economical to manufacture and to assemble.
  • a device of the introductorily stated type which, according to the invention, is characterized in that it consists of a sheet element of resilient material which, prior to assembly, is upwards convexly curved in a plane at right angles to said channels, so that the element in straightened condition, after assembly on supports extending along the side edges of the element, exerts a pressure against the overlying floor, and that the channels are upwards open grooves which are so dimensioned that the sheet element, after assembly, clamp tubes disposed in the grooves.
  • the sheet element is covered on its underside with a layer of foam-plastic insulation.
  • the sheet element according to the invention combines several functions resulting in the desired good heat transfer.
  • the sheet elements are upwards convexly curved in the stated manner, i. e. prior to assembly have a rise between its points of support, one achieves that the elements are pressing against the overlying floor material when this has been installed on the elements, and thereby one achieves a good contact between sheets and floor and therewith a good heat emission.
  • a good heat transfer between tubes and sheet elements is also a result of the firm clamp connection between tubes and sheets which is achieved with the upwards open, suitably dimensioned grooves wherein the tubes are clamped when the overlying floor material press the sheets downwards to a planar condition.
  • the sheet element on one side thereof is covered with a layer insulating foam plastic one achieves, apart from the insulation effect, also a sheet having additional rigidity in deflection, so that the desired clamping action around the tubes and the desired pressure against the floor is still achieved when using relatively thin aluminium sheets.
  • the insulation layer provides that the heat from the sheet does not propagate downwards, and replaces the traditional insulation layer which is placed between the joists in wooden floors and is placed under the heating tubes in concrete floors.
  • plants comprising the device according to the invention can also replace present floor heating plants for cast floors with tubes embedded in the floor.
  • the thickness of the insulating foam plastic layer can be varied according to the requirements. One can also in a simple manner install floor heating plants on already existing cast floors without structural modifications.
  • Fig. 1 shows a sectioned, partial perspective view of a device according to the invention, wherein a sheet element is shown prior to assembly;
  • Fig. 2 shows a side view of the device in Fig. 1 in assembled condition with a floor covering installed on the sheet element;
  • Fig. 3 shows a sectional side view wherein the device in Figs. 1 - 2 is shown installed on a cast floor.
  • Fig. 1 there is shown a perspective cut of a device according to the invention forming part of a floor heating plant, wherein the device is shown in its natural position prior to assembly, i. e. it is curved as shown so that it has a rise h.
  • the device comprises a sheet element 1 consisting of heat-conducting resilient material, preferably aluminium having a thickness of e. g. 0, 35 mm, and which is provided with a number of mutually parallel channels or grooves 2 receiving respective lengths of tubes 3, e. g. of plastic material, for transport of heating medium, e. g. hot water with a suitable temperature e. g. ca. 32oC.
  • heating medium e. g. hot water with a suitable temperature e. g. ca. 32oC.
  • the sheet element 1 On its underside or rear side the sheet element 1 is covered with an insulating foam plastic layer 4.
  • the insulation layer can consist of sprayed polyurethane foam which is applied in a pressure/expansion process and can have a thickness of e. g. ca. 20 mm.
  • the sheet element 1 is shown to be supported along its side edges by joists 5 forming part of a joisting in a wooden floor, As mentioned, the sheet element in its initial position has a rise h between its points of support 5, the sheet being upwards convexly curved in a olane at right angles to the grooves 2.
  • the sheet element is intended for direct contact with an overlying floor, and in Fig. 2 the sheet element is shown in assembled condition wherein it is pressed down to a straightened, planar position by an overlying floor 6, so that the sheet element exerts a pressure against the floor.
  • the upwards open grooves or flutes 2 formed in the sheet element 1 are so dimensioned that the element, in assembled position, clamps the tubes 3 disposed in the grooves 2.
  • the grooves are preferably formed as part-cylindrical channels which, in the curved initial position of the sheet element 1, have a width which is essentially equal to the external diameter of the tubes 3 and which, in the straightened position of the sheet element, with clamping action enclose essentially the whole tube circumference, so that the tubes, in the assembled position of the sheet element, do not project above the top of the element.
  • FIG. 3 the device in Figs. 1 - 2 is shown in connection with a cast concrete floor.
  • the arrangement corresponds to the arrangement of Figs. 1 - 2 except that the unit 1, 4 is here disposed on supporting strips or joists 7 which are placed directely on the rough-cast floor subgrade 8.
  • a complete floor heating plant with associated distributors and heating tubes will normally include a larger number of the described sheet element, these being placed side by side on the supporting joists so that they cover essentially the whole or a chosen part of the floor surface which is to be heated.
  • the shown tubes will normally form a continuous tube length and they may be disposed in serpentine form in the floor surface in question. It will also be appreciated that, even if the device has been described in connection with floor heating, it may also be installed for heating of other room-limiting surfaces, e. g. walls or ceilings. Further, the device can be used for cooling instead of heating if a cooling medium is transported in the tubes instead of a heating medium.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Greenhouses (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

Dispositif destine a etre utilise dans des installations de chauffage ou de refroidissement de surfaces delimitant des espaces, notamment des installations de chauffage de plancher comprenant une pluralite de tuyaux (3) pour le transport du milieu de chauffage et une pluralite d'elements (1) en feuilles de conduction thermique pourvus de canaux (2) servant a recevoir les tuyaux (3) en liaison de conduction thermique avec ces elements. Le dispositif se compose d'un element (1) de feuille forme d'un materiau elastique qui, avant l'assemblage, est courbe de telle maniere convexe vers le haut dans un plan a angle droit avec les canaux (2), de maniere que l'element dans sa configuration redressee, apres l'assemblage sur des supports le long des cotes de l'element (1), exerce une pression contre un plancher sous lequel il est dispose, et les canaux sont des rainures (2) ouvertes vers le haut dimensionnees de maniere a permettre, apres l'assemblage, le serrage des tuyaux (3) dans les rainures (2) par l'element (1) en feuille. Le cote inferieur de l'element en feuille (1) est enduit de preference d'une couche (4) de mousse plastique empechant une emission de chaleur dans la direction opposee a celle du plancher, et conferant une rigidite supplementaire a l'element de feuille.Device for use in heating or cooling installations for surfaces delimiting spaces, in particular floor heating installations comprising a plurality of pipes (3) for transporting the heating medium and a plurality of elements (1) in thermal conduction sheets provided with channels (2) serving to receive the pipes (3) in thermal conduction connection with these elements. The device consists of a sheet element (1) formed of an elastic material which, before assembly, is curved such that it is convex upward in a plane at right angles to the channels (2), so that the element in its straightened configuration, after assembly on supports along the dimensions of the element (1), exerts pressure against a floor under which it is placed, and the channels are grooves (2) open upwards dimensioned so as to allow, after assembly, the clamping of the pipes (3) in the grooves (2) by the element (1) in sheet form. The lower side of the sheet element (1) is preferably coated with a layer (4) of plastic foam preventing heat emission in the direction opposite to that of the floor, and imparting additional rigidity to the element of leaf.

Description

Device for use in plants for heating or cooling of room-limiting surfaces
The invention relates to a device for use in plants for heating or cooling of room-limiting surfaces, particularly floor heating plants comprising a plurality of tubes for transport of heating medium, such as hot water, and a plurality of heat-conducting sheet elements provided with a number of substantially parallel channels for receiving the tubes in heat-conducting connection therewith, for transferring heat to an overlying floor surface.
In a previously known plant for floor heating by means of hot water tubes installed in the floor the tubes, in the case of wooden joisting, are mounted on clamps between the joists and provided with heat-conducting sheets in the form of aluminium convectors to increase the heating surface. The tube-holding clamps are mounted on suspension means in the form of supporting irons extending between the wooden joists, and the convector sheets - which are formed with a tube-receiving groove - are attached to the tubes by means of clamps. In the known plant the space between the traditional floor insulation and the overlying floor material is heated and the hot air imparts the desired temperature to the floor surface which thereby gives off heat to the room. The water temperature which is necessary in the tubes, appears to be 50 - 70ºC in order to achieve a temperature of 25ºC on the floor surface, which is a minimum to supply sufficient heat to the room. When one wishes to utilize so-called alternative energy sources as a heating source for the plant, such as solar heat, heat pump, cooling water for machines and the like, it is necessary to have a system giving off sufficient heat for heating by use of heating media with such a low temperature as 32ºC, which is the economical working temperature for a heat pump.
In order to achieve the necessary floor surface temperature when using said low heating medium temperature, one could e. g. use tube materials having a better heat conductivity than the presently used plastic tubes, e. g. cupper tubes, and install these tubes so closely that the necessary heating effect is achieved. However, this would result in expensive plants and is therefore less acceptable.
The object of the invention is to provide a device giving a very good transfer of heat between heating tubes and floor surface, so that heating media with a low temperature can be used, at the same time as the device is structurally simple and rational and economical to manufacture and to assemble.
The above mentioned object is achieved with a device of the introductorily stated type which, according to the invention, is characterized in that it consists of a sheet element of resilient material which, prior to assembly, is upwards convexly curved in a plane at right angles to said channels, so that the element in straightened condition, after assembly on supports extending along the side edges of the element, exerts a pressure against the overlying floor, and that the channels are upwards open grooves which are so dimensioned that the sheet element, after assembly, clamp tubes disposed in the grooves.
According to a particularly advantageous embodiment of the invention the sheet element is covered on its underside with a layer of foam-plastic insulation.
The sheet element according to the invention combines several functions resulting in the desired good heat transfer. As a result of the fact that the sheet elements are upwards convexly curved in the stated manner, i. e. prior to assembly have a rise between its points of support, one achieves that the elements are pressing against the overlying floor material when this has been installed on the elements, and thereby one achieves a good contact between sheets and floor and therewith a good heat emission. A good heat transfer between tubes and sheet elements is also a result of the firm clamp connection between tubes and sheets which is achieved with the upwards open, suitably dimensioned grooves wherein the tubes are clamped when the overlying floor material press the sheets downwards to a planar condition.
When the sheet element on one side thereof is covered with a layer insulating foam plastic one achieves, apart from the insulation effect, also a sheet having additional rigidity in deflection, so that the desired clamping action around the tubes and the desired pressure against the floor is still achieved when using relatively thin aluminium sheets. The insulation layer provides that the heat from the sheet does not propagate downwards, and replaces the traditional insulation layer which is placed between the joists in wooden floors and is placed under the heating tubes in concrete floors. It will be appreciated that plants comprising the device according to the invention can also replace present floor heating plants for cast floors with tubes embedded in the floor. The thickness of the insulating foam plastic layer can be varied according to the requirements. One can also in a simple manner install floor heating plants on already existing cast floors without structural modifications.
By using an aluminium sheet having grooves for heating medium transporting tubes and an insulation mass which is cast on one side of the sheet, and by giving the whole unit a rise, one has achieved a factory-made high-quality insulation which prevents loss of heat and provides a pressure between tubes and sheet and sheet and floor which is necessary for a good heat transfer. Simultaneously one has eliminated the clamps and suspension means which are necessary in the assembly of the known system described above. The invention will be described more closely below in connection with exemplary embodiments with reference to the accompanying drawing, wherein
Fig. 1 shows a sectioned, partial perspective view of a device according to the invention, wherein a sheet element is shown prior to assembly;
Fig. 2 shows a side view of the device in Fig. 1 in assembled condition with a floor covering installed on the sheet element; and
Fig. 3 shows a sectional side view wherein the device in Figs. 1 - 2 is shown installed on a cast floor.
In Fig. 1 there is shown a perspective cut of a device according to the invention forming part of a floor heating plant, wherein the device is shown in its natural position prior to assembly, i. e. it is curved as shown so that it has a rise h. The device comprises a sheet element 1 consisting of heat-conducting resilient material, preferably aluminium having a thickness of e. g. 0, 35 mm, and which is provided with a number of mutually parallel channels or grooves 2 receiving respective lengths of tubes 3, e. g. of plastic material, for transport of heating medium, e. g. hot water with a suitable temperature e. g. ca. 32ºC. On its underside or rear side the sheet element 1 is covered with an insulating foam plastic layer 4. Advantageously, the insulation layer can consist of sprayed polyurethane foam which is applied in a pressure/expansion process and can have a thickness of e. g. ca. 20 mm. In Fig. 1 the sheet element 1 is shown to be supported along its side edges by joists 5 forming part of a joisting in a wooden floor, As mentioned, the sheet element in its initial position has a rise h between its points of support 5, the sheet being upwards convexly curved in a olane at right angles to the grooves 2. The sheet element is intended for direct contact with an overlying floor, and in Fig. 2 the sheet element is shown in assembled condition wherein it is pressed down to a straightened, planar position by an overlying floor 6, so that the sheet element exerts a pressure against the floor.
The upwards open grooves or flutes 2 formed in the sheet element 1 are so dimensioned that the element, in assembled position, clamps the tubes 3 disposed in the grooves 2. The grooves are preferably formed as part-cylindrical channels which, in the curved initial position of the sheet element 1, have a width which is essentially equal to the external diameter of the tubes 3 and which, in the straightened position of the sheet element, with clamping action enclose essentially the whole tube circumference, so that the tubes, in the assembled position of the sheet element, do not project above the top of the element.
In Fig. 3 the device in Figs. 1 - 2 is shown in connection with a cast concrete floor. The arrangement corresponds to the arrangement of Figs. 1 - 2 except that the unit 1, 4 is here disposed on supporting strips or joists 7 which are placed directely on the rough-cast floor subgrade 8.
It will be appreciated that a complete floor heating plant with associated distributors and heating tubes will normally include a larger number of the described sheet element, these being placed side by side on the supporting joists so that they cover essentially the whole or a chosen part of the floor surface which is to be heated. The shown tubes will normally form a continuous tube length and they may be disposed in serpentine form in the floor surface in question. It will also be appreciated that, even if the device has been described in connection with floor heating, it may also be installed for heating of other room-limiting surfaces, e. g. walls or ceilings. Further, the device can be used for cooling instead of heating if a cooling medium is transported in the tubes instead of a heating medium.

Claims

Patent Claims
1. A device for use in plants for heating or cooling of room-limiting surfaces, particularly floor heating plants comprising a plurality of tubes for transport of heating medium, such as hot water, and a plurality of heat-conducting sheet elements provided with a number of substantially parallel channels for receiving the tubes in heat-conducting connection therewith, for transf erring heat to an overlying floor surface, characterized in that it consists of a sheet element (1) of resilient material which, prior to assembly, is upwards convexly curved in a plane at right angles to said channels (2), so that the element in straightened condition, after assembly on supports (5) extending along the side edges of the element (1), exerts a pressure against the overlying floor (6), and that the channels are upwards open grooves (2) which are so dimensioned that the sheet elements, after assembly, clamp tubes (3) disposed in the grooves (2).
2. A device according to claim 1, characterized in that the sheet element (1) on its underside is covered with a layer of foam-plastic insulation (4).
3. A device according to claim 1 or 2, characterized in that the sheet element (1) is an aluminium sheet and after assembly is adapted to lie in direct contact with the overlying floor (6).
4. A device according to any one of the claims 1 - 3, characterized in that the grooves (2) of the sheet element (1) are formed as part-cylindrical channels which, in the curved initial position of the element (1), have a width which is essentially equal to the external diameter of the tubes (3) to be received therein, and which, in the straightened position of the element, essentially enclose the disposed tubes with a clamping action.
EP81902669A 1980-09-12 1981-09-11 Device for use in plants for heating or cooling of room-limiting surfaces Withdrawn EP0060293A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO802726 1980-09-12
NO802726A NO802726L (en) 1980-09-12 1980-09-12 DEVICE FOR USE IN PLANT FOR HEATING OR COOLING ROOM BREAKFAST

Publications (1)

Publication Number Publication Date
EP0060293A1 true EP0060293A1 (en) 1982-09-22

Family

ID=19885655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81902669A Withdrawn EP0060293A1 (en) 1980-09-12 1981-09-11 Device for use in plants for heating or cooling of room-limiting surfaces

Country Status (3)

Country Link
EP (1) EP0060293A1 (en)
NO (1) NO802726L (en)
WO (1) WO1982001058A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO814027L (en) * 1981-11-26 1983-05-27 Rolf Jacobsen FLOOR ELEMENT FOR MAKING A HEATED FLOOR COVER
US4782889A (en) * 1986-05-05 1988-11-08 Bourne Richard C Low mass hydronic radiant floor system
SE461161B (en) * 1988-12-12 1990-01-15 Ramnaes Konstr Tek Ab GOLVVAERMEPLATTA
US4852315A (en) * 1988-12-15 1989-08-01 Tateki Fukayama Readjustable floor system
US5131458A (en) * 1991-03-25 1992-07-21 Davis Energy Group, Inc. Modular back side radiant heating panels with spring retention devices
GB2276928B (en) * 1993-04-07 1997-01-22 David John Robbens Underfloor heating system and support
CH692094A5 (en) * 1995-09-23 2002-01-31 Barcol Air Contact element and ceiling element for a heating and cooling ceiling.
US6910526B1 (en) * 1995-10-06 2005-06-28 Barcol-Air Ag Contact element and ceiling element for a heating and cooling ceiling
GB2349453A (en) * 1999-03-11 2000-11-01 Pipe2000 Limited Ceiling or underfloor heating or cooling apparatus with heat conducting grooved panels
US6216868B1 (en) 1999-07-09 2001-04-17 Stonybrook Surgical Innovations Inc. Surgical blade system
GB2375815B (en) * 2001-02-24 2003-09-17 Thermoboard Ltd Underfloor heating/cooling systems
GB0129782D0 (en) * 2001-12-12 2002-01-30 Nu Heat Uk Ltd Prefabricated underfloor heating tile
DE202007010215U1 (en) * 2007-07-23 2007-09-27 Lindner Ag Wall or ceiling paneling with heating or cooling device
EP2148142B1 (en) * 2008-07-21 2015-05-20 Université de Liège Device for holding a pipe in a groove of a temperature control system integrated in a surface and method therefor
NL2006379C2 (en) * 2011-03-14 2012-09-17 S M Schilder Beheer B V CLIMATE SYSTEM, PIPE PROFILE FOR THIS AND METHOD FOR INSTALLING SUCH SYSTEM.
DE202014006283U1 (en) * 2014-08-10 2014-12-12 Lutz Zamecki Mounting adapter for heatpipes for thermal connection to a cooling element
PL411273A1 (en) * 2015-02-13 2016-08-16 Jarosław Oćwieja Multi-layered thermally conductive panel for the floor warming system

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US3924169A (en) * 1974-01-14 1975-12-02 Sunbeam Corp Mixer with speed control
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Also Published As

Publication number Publication date
WO1982001058A1 (en) 1982-04-01
NO802726L (en) 1982-03-15

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