CH300505A - Surface heating system operated with low voltage. - Google Patents
Surface heating system operated with low voltage.Info
- Publication number
- CH300505A CH300505A CH300505DA CH300505A CH 300505 A CH300505 A CH 300505A CH 300505D A CH300505D A CH 300505DA CH 300505 A CH300505 A CH 300505A
- Authority
- CH
- Switzerland
- Prior art keywords
- heating system
- low voltage
- radiator
- heated
- system operated
- Prior art date
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
- F24D13/00—Electric heating systems
- F24D13/02—Electric heating systems solely using resistance heating, e.g. underfloor heating
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
- E01C11/26—Permanently installed heating or blowing devices ; Mounting thereof
- E01C11/265—Embedded electrical heating elements ; Mounting thereof
-
- 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]
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)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Central Heating Systems (AREA)
Description
Mit Kleinspannung betriebene Oberflächenheizanlage. Gegenstand der vorliegenden Erfindung ist eine mit Kleinspannung betriebene Ober- fläehenheizanlage, mit unter der zu beheizen den Oberfläche eingebettetem, elektrischem Heizkörper, der durch ein flächenartig aus gebreitetes Leiternetz gebildet ist. Gemäss der Erfindung besteht der Heizkörper aus Draht geflecht, welches als Einlage in nichtmetalli scher Baustoffschichtung angeordnet ist.
In der beiliegenden Zeichnung ist eine bei spielsweise Ausführungsform des Erfindungs gegenstandes dargestellt.
Fig. 1 zeigt in perspektivischer Ansicht ein Teilstück eines Fussbodens mit eingebau tem Heizkörper.
Fig. 2 ist' ein elektrisches Schaltschema einer Oberflächen-Kleinspannungsheizanlage. Der Heizkörper der Kleinspannungsheiz- anlage besteht aus einem an sich bekannten, flächenartig ausgebreiteten Drahtgeflecht 1 von handelsüblicher Art und einer Breite von z.
B. 1,0m, welches als Einlage in die nicht metallische Baustoffsehichtimg eines Fuss bodens verlegt ist, der im Beispiel nach Fig. 1 aus einer Betonschicht 2, einer Zementschicht 3, in die das Drahtgeflecht 1 eingebettet ist, und einem Bodenplattenbelag 4 besteht, der die zu beheizende Oberfläche 5 bildet. Die stromdurchflossenen Drahtquerschnitte quer zur allgemeinen Richtung des Stromflusses im Drahtgeflecht 1 sind wenigstens angenähert regelmässig über dessen ganze Breite verteilt.
Das Drahtgeflecht 1 liegt vorzugsweise par- allel zur Oberfläche 5 und kann elektrisch iso liert oder nicht isoliert sein. Die Isoliertang kann z. B. durch eine aufgespritzte Lack schicht oder durch Oberflächenoxydation er reicht sein. Das Drahtgeflecht 1 kann allein oder in Serie- oder Parallelschaltung mit weiteren Drahtgeflechten in den Sekundär stromkreis 6 eines Transformators 7 geschaltet sein, wie dies aus dem Schaltschema nach Fig. 2 für drei in Serie geschaltete Heizwider- stände 1 hervorgeht. Der Primärstromkreis 8 werde z.
B. an die Spannung des Ortsver- teilungsnetzes gelegt und ist mit Schmelz sicherungen 9 versehen. Im Sekundärkreis 6 betrage die maximale Betriebsspannung 50 Volt, weshalb die Heizung als Kleinspan- nangsanlage gelten kann.
Zur Vermeidung einer für Personen oder Einrichtungen gefährlichen Spannung am Heizgeflecht, z. B. bei durch Blitzschlag defekt gewordenem Transformator 7, wird der Se- kundärwicklungs-Mittelpunkt 10 über einen niederohmigen Widerstand 11 an Erde gelegt. Auf diese Weise soll, falls der Mittelpunkt 10 der Sekundärwicklung infolge ungleicher Pha- senleiterspannung im Ortsverteilungsnetz eine kleine Spannung von einigen Volt gegen Erde führt, die verlorengehende Leistung möglichst klein gehaltem werden.
Tritt aber durch irgendeinen Umstand in der Sekundärwick- lung eine abnormale (unsymmetrische) Span nung auf, so kann unter Umständen der über den Wicklungs-112ittelpunkt 10 zur Erde ab fliessende Strom doch so gross werden, dass die dem Transformator vorgeschalteten Sicherun gen 9 sofort durchschmelzen.
Die Heizkörper können nicht nur in Fuss böden und Wänden von Räumen, sondern z. B. auch in Strassen, Promenaden, Bassins von Schwimmbädern usw. zur Anwendung ge langen.
Der Heizkörper kann z. B. nur mit seiner der zu beheizenden Oberfläche zugekehrten Fläche an einer Baustoffschicht vollständig anliegen, während er mit seiner andern Fläche z. B., auf Rippen aufliegen kann, zwischen denen sich Luftzellen oder Schlackenfüllungen zur Wärmeisolierung befinden.
Surface heating system operated with low voltage. The subject of the present invention is a surface heating system operated with low voltage, with an electric heating element embedded under the surface to be heated, which is formed by a conductor network spread over an area. According to the invention, the radiator consists of wire mesh, which is arranged as an insert in non-metallic shear building material layers.
In the accompanying drawing, an example embodiment of the invention is shown.
Fig. 1 shows a perspective view of a section of a floor with built-in system radiator.
Fig. 2 is an electrical schematic of a surface extra-low voltage heating system. The radiator of the extra-low voltage heating system consists of a wire mesh 1, known per se, of a commercially available type and a width of z.
B. 1.0m, which is laid as an insert in the non-metallic Baustoffsehichtimg a floor, which in the example of FIG. 1 consists of a concrete layer 2, a cement layer 3 in which the wire mesh 1 is embedded, and a floor slab covering 4, which forms the surface 5 to be heated. The wire cross-sections through which current flows transversely to the general direction of the current flow in the wire mesh 1 are distributed at least approximately regularly over its entire width.
The wire mesh 1 is preferably parallel to the surface 5 and can be electrically insulated or not. Theisolation can e.g. B. by a sprayed paint layer or by surface oxidation it is enough. The wire mesh 1 can be connected alone or in series or parallel with other wire meshes in the secondary circuit 6 of a transformer 7, as can be seen from the circuit diagram according to FIG. 2 for three heating resistors 1 connected in series. The primary circuit 8 will z.
B. connected to the voltage of the local distribution network and is provided with fuses 9. In the secondary circuit 6, the maximum operating voltage is 50 volts, which is why the heater can be regarded as a low voltage system.
To avoid a dangerous voltage for persons or equipment on the heating mesh, e.g. If, for example, the transformer 7 has become defective due to a lightning strike, the secondary winding center 10 is connected to earth via a low-resistance resistor 11. In this way, if the center 10 of the secondary winding leads a small voltage of a few volts to earth due to unequal phase conductor voltage in the local distribution network, the power lost should be kept as small as possible.
However, if an abnormal (asymmetrical) voltage occurs in the secondary winding due to any circumstance, the current flowing to earth via the winding center point 10 may be so great that the fuses 9 upstream of the transformer melt immediately .
The radiators can not only floors and walls of rooms, but z. B. also in streets, promenades, pools of swimming pools, etc. for application ge long.
The radiator can, for. B. only with its surface facing the surface to be heated fully rest against a layer of building material, while its other surface z. B., can rest on ribs, between which there are air cells or slag fillings for thermal insulation.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH300505T | 1951-08-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH300505A true CH300505A (en) | 1954-08-15 |
Family
ID=4490691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH300505D CH300505A (en) | 1951-08-11 | 1951-08-11 | Surface heating system operated with low voltage. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH300505A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1264015B (en) * | 1958-03-21 | 1968-03-21 | S E Grand Rapids | Electric space heating system embedded in space delimitation elements made of concrete, plaster or the like |
EP0077621A2 (en) * | 1981-10-07 | 1983-04-27 | Charles H. Graham | Electrical heating system |
DE3613033A1 (en) * | 1986-04-17 | 1987-10-22 | Stadelmann Karlheinz | ELECTRIC FLOOR HEATING |
-
1951
- 1951-08-11 CH CH300505D patent/CH300505A/en unknown
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1264015B (en) * | 1958-03-21 | 1968-03-21 | S E Grand Rapids | Electric space heating system embedded in space delimitation elements made of concrete, plaster or the like |
EP0077621A2 (en) * | 1981-10-07 | 1983-04-27 | Charles H. Graham | Electrical heating system |
EP0077621A3 (en) * | 1981-10-07 | 1984-03-07 | Charles H. Graham | Electrical heating system |
DE3613033A1 (en) * | 1986-04-17 | 1987-10-22 | Stadelmann Karlheinz | ELECTRIC FLOOR HEATING |
EP0242787A2 (en) * | 1986-04-17 | 1987-10-28 | Stadelmann, Karlheinz, Ing. grad. | Electric under floor heating |
EP0242787A3 (en) * | 1986-04-17 | 1988-03-30 | Karlheinz Ing. Grad. Stadelmann | Electric under floor heating |
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