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EP1782659B1 - Vorrichtung zum heizen von böden, insbesondere von sportplätzen - Google Patents

Vorrichtung zum heizen von böden, insbesondere von sportplätzen Download PDF

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Publication number
EP1782659B1
EP1782659B1 EP05798611A EP05798611A EP1782659B1 EP 1782659 B1 EP1782659 B1 EP 1782659B1 EP 05798611 A EP05798611 A EP 05798611A EP 05798611 A EP05798611 A EP 05798611A EP 1782659 B1 EP1782659 B1 EP 1782659B1
Authority
EP
European Patent Office
Prior art keywords
heating
installation according
ground
transformer
transformers
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.)
Active
Application number
EP05798611A
Other languages
English (en)
French (fr)
Other versions
EP1782659A1 (de
Inventor
Jean-Claude Beisser
Jean-Marc Scherrer
Jean-Paul Scherrer
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.)
Brevetix SARL
Original Assignee
Brevetix SARL
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Filing date
Publication date
Application filed by Brevetix SARL filed Critical Brevetix SARL
Priority to PL05798611T priority Critical patent/PL1782659T3/pl
Publication of EP1782659A1 publication Critical patent/EP1782659A1/de
Application granted granted Critical
Publication of EP1782659B1 publication Critical patent/EP1782659B1/de
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Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/56—Heating cables
    • 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
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/02—Foundations, e.g. with drainage or heating arrangements
    • 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
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds
    • E01C13/083—Construction of grass-grown sports grounds; Drainage, irrigation or heating arrangements therefor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/026—Heaters specially adapted for floor heating

Definitions

  • the present invention relates to a device for providing the heating of grounds and in particular the frosting of sports fields.
  • Ground heating devices of this type have a major disadvantage in that the electrical energy is transported from the transformer to the sector to be heated by energy connections which are extremely expensive to use, on the one hand by quantity of energy consumed and, secondly, in raw material cost. Moreover, in this type of installation, all the sectors that one wishes to heat do not have identical characteristics in particular as regards their resistivity, so that if one wishes to bring them to the same temperature it is necessary to distribute a specific heating power according to these characteristics.
  • the purpose of the present invention is thus to propose a device intended to ensure the heating of grounds, and in particular, sports fields, which allow them to be set free from frost, and this in a totally safe way with regard to the implementation of the electric current and, secondly, by making notable savings, both in terms of electricity consumption and the cost of implementation.
  • the present device also aims to allow adjustment of the power delivered by each transformer element with the zone to be heated corresponding thereto.
  • the present invention thus relates to an installation for heating a terrain, particularly sports, by means of cables powered by electric current which are buried in the ground thereof, characterized in that the surface of the ground to be heated is divided into several sectors, and each sector is heated by at least two heating lines each constituting a secondary of the same transformer.
  • the transformer will preferably be of toric type, and its secondary winding will be made of a metal of lower conductivity than that of the heating lines, the secondary winding can thus be made of copper and the aluminum heating lines.
  • the diameter of the wire of the secondary winding and that of the heating line can thus have identical diameters which facilitates in particular the connection problems.
  • the transformers will be placed in close proximity to the ground, preferably in a technical gallery buried in the ground.
  • the primary winding of the transformers will comprise a screen formed of a metal strip, preferably consisting of aluminum or copper.
  • the cable constituting the secondary winding of the transformer will advantageously be made of two conductive elements twisted on one another.
  • the heating installation consists of a series of transformers 3a, 3b, 3c,..., 3n, each of which is associated with the heating of a given sector of land 1a, 1b, 1c, ..., 1n.
  • a transformer thus provides, for example, the supply of three heating lines 9, 9 ', 9 "of a given sector, these heating lines being buried in the ground of each of these sectors, and evenly distributed or not in the space of the sectors and this according to the calorific needs of each of these.
  • the primary 5 of each of these transformers is fed by a three-phase electrical line 7 formed of two phase lines L1, L2 and a neutral line N.
  • a three-phase electrical line 7 formed of two phase lines L1, L2 and a neutral line N.
  • the three The primary windings of the transformers 3a, 3b and 3c are respectively fed on the lines L1-L2, L2-N and L1-N.
  • Each of the three heating lines 9, 9 ', 9 "associated with a transformer 3a, 3b, 3c, ..., 3n is respectively connected to a secondary winding 8, 8', 8" thereof.
  • FIG. 2 and 3 such a transformer which essentially comprises a toric core 10 around which is wound the primary winding 5 and the three secondary windings 8, 8 'and 8 ".
  • Each secondary winding consists of five turns which are made in a copper conductor and which are connected at each of their ends, via a connector element 12, to an associated heating line 9, 9 ', 9 "whose length is such that it enables it to cover a determined portion of the surface of the sector to heat.
  • the primary winding 5 consists of a larger number of windings of smaller diameter
  • the conductive wire used is also made of copper.
  • the conductive wire will advantageously comprise an electrostatic screen which will be integrated and which consists of a thin strip of aluminum or copper.
  • each of the sectors to be heated 1a, 1b, 1c, ..., 1n is different from the sectors that are adjacent to it, so that each of them will require the use of a line of heating 9, 9 ', 9 "capable of delivering a different power.
  • the present invention makes it possible precisely to give the user the possibility of adjusting, once in the field, the power delivered by each secondary winding as a function of the specific physical parameters of the soil to be heated and of its specific heat requirements, and this by playing on the tension delivered by it.
  • This supply voltage can be controlled by varying the number of turns of each of the secondary windings.
  • an average supply voltage will be obtained with a given number of turns, (for example five) which will leave the user the possibility of either deleting one or two turns if it wishes to decrease the tension, or to add a two turns if it wishes to increase it.
  • transformers 3 can be arranged in a technical gallery 16 made for example in a trench dug in the ground at the edge of the ground.
  • the transformers can be made completely sealed by coating their magnetic circuit in a product consisting for example of a resin.
  • the turns constituting the secondary winding and the heating wires which are buried in the ground may be of different natures. It will thus be possible to achieve the turns of the secondary winding in a metal of very good electrical conductivity which will minimize the heating of the secondary of the transformer, and to make the turns constituting the heating lines 9, 9 ', 9 "in a metal of higher resistivity.
  • these elements will preferably have identical diameters, it being understood that the difference in resistance of these two elements will be due solely to the difference in resistivity between the respective materials chosen to constitute the turns of the secondary winding and the heating elements.
  • the heating cable will in fact be made of two elements which will be twisted on one another, which makes it possible to avoid any magnetic field formation induced by these cables around the ground to be heated.
  • the output voltage of the secondary of the transformers will be of the order of 40 to 50 volts and the resistances constituted by the heating lines 9,
  • this primary conductor consists of the inside to the outside of a conducting wire 18 made of aluminum, an insulating layer 20 constituted for example by polyvinyl chloride, a copper strip 22 constituting the screen and finally an outer layer 24 insulating and sealed, for example polyvinyl chloride.
  • the installation according to the invention was able to ensure the heating of a sports ground of 6000 m2 under an outside temperature of -10 ° C. and to put it freeze-free at a temperature of 5 ° C.
  • the secondary of these transformers consisted of five windings delivering each a power of 4 kVA and the resistance of the heating lines 9 were of the order of 0.6 ⁇ .

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Resistance Heating (AREA)
  • Road Paving Structures (AREA)
  • Control Of Resistance Heating (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Central Heating Systems (AREA)
  • General Induction Heating (AREA)
  • Surface Heating Bodies (AREA)
  • Floor Finish (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Artificial Filaments (AREA)

Claims (11)

  1. Anlage zum Heizen eines Geländes, insbesondere eines Sportgeländes, mittels Kabeln (9, 9', 9"), die mit elektrischem Strom versorgt werden und die in den Boden von diesem eingegraben sind, wobei die Oberfläche des zu beheizenden Geländes in mehrere Sektoren (1a, 1b, 1c, ... 1n) unterteilt ist, und dadurch gekennzeichnet, dass jeder Sektor durch mindestens zwei Heizleitungen (9, 9', 9") beheizt wird, von denen jede eine Sekundärseite eines selben Transformators (3a, 3b und 3c) bildet.
  2. Heizanlage nach Anspruch 1, dadurch gekennzeichnet, dass der Transformator (3a, 3b und 3c) vom torischen Typ ist, wobei seine Sekundärwicklung (7) aus einem Metall realisiert ist, dessen Leitfähigkeit geringer als die der Heizleitungen (9, 9', 9") ist.
  3. Anlage nach Anspruch 2, dadurch gekennzeichnet, dass die Sekundärwicklung (7) aus Kupfer realisiert ist und die Heizleitungen (9, 9', 9") aus Aluminium realisiert sind.
  4. Anlage nach Anspruch 3, dadurch gekennzeichnet, dass die Durchmesser der Sekundärwicklung (7) und der Heizleitungen (9, 9', 9") im Wesentlichen identisch sind.
  5. Anlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Transformatoren (3a, 3b und 3c) in unmittelbarer Nähe des Geländes angeordnet sind.
  6. Anlage nach Anspruch 5, dadurch gekennzeichnet, dass die Transformatoren (3a, 3b und 3c) in einem im Boden versenkten Techniktrakt (16) angeordnet sind.
  7. Anlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Primärwicklung (5) der Transformatoren (3a, 3b und 3c) eine aus einem metallischen Bandmaterial (22) bestehende Abschirmung aufweist.
  8. Anlage nach Anspruch 7, dadurch gekennzeichnet, dass die Abschirmung aus Aluminium oder aus Kupfer besteht.
  9. Anlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Kabel, das die Sekundärwicklung des Transformators bildet, aus zwei miteinander verdrillten leitenden Elementen realisiert ist.
  10. Anlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Leerlaufspannung der Sekundärseite des Transformators (3a, 3b und 3c) in der Größenordnung von 50 Volt liegt.
  11. Anlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Magnetkreis des Transformators isoliert ist, und zwar insbesondere mittels eines Harzes.
EP05798611A 2004-08-26 2005-08-24 Vorrichtung zum heizen von böden, insbesondere von sportplätzen Active EP1782659B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05798611T PL1782659T3 (pl) 2004-08-26 2005-08-24 Urządzenie do ogrzewania gruntu, zwłaszcza terenów sportowych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0409107A FR2874782B1 (fr) 2004-08-26 2004-08-26 Dispositif de chauffage de terrains, notamment de sport
PCT/FR2005/002131 WO2006024797A1 (fr) 2004-08-26 2005-08-24 Dispositif de chauffage de terrains, notamment de sport

Publications (2)

Publication Number Publication Date
EP1782659A1 EP1782659A1 (de) 2007-05-09
EP1782659B1 true EP1782659B1 (de) 2008-05-14

Family

ID=34947767

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05798611A Active EP1782659B1 (de) 2004-08-26 2005-08-24 Vorrichtung zum heizen von böden, insbesondere von sportplätzen

Country Status (15)

Country Link
US (1) US7778532B2 (de)
EP (1) EP1782659B1 (de)
JP (1) JP4721462B2 (de)
KR (1) KR20070065335A (de)
CN (1) CN101010988B (de)
AT (1) ATE395803T1 (de)
CA (1) CA2578116C (de)
DE (1) DE602005006817D1 (de)
FR (1) FR2874782B1 (de)
NO (1) NO339053B1 (de)
NZ (1) NZ553956A (de)
PL (1) PL1782659T3 (de)
RU (1) RU2355132C2 (de)
UA (1) UA89197C2 (de)
WO (1) WO2006024797A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2965899B1 (fr) * 2010-10-08 2015-01-16 Ilo Technology Film chauffant avec un raccordement electrique alimente en courant triphase
JP2013034081A (ja) 2011-08-02 2013-02-14 Sony Corp 画像処理装置、その制御方法およびプログラム

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4381020A (en) * 1981-07-30 1983-04-26 Mueller Co. Single and multiple section pipe repair or service clamps
DE3603233A1 (de) * 1986-02-03 1987-08-06 Buchtal Gmbh Belag fuer wand-, decken- oder fussbodenbekleidungen
JPS6448903A (en) * 1987-08-14 1989-02-23 Mitsubishi Cable Ind Ltd Load heating control method
DE59104972D1 (de) 1991-06-01 1995-04-20 Heraeus Noblelight Gmbh Bestrahlungseinrichtung mit einem Hochleistungsstrahler.
JPH05171610A (ja) * 1991-12-24 1993-07-09 Fujii:Kk ロードヒーティング装置とその制御方法
AU3647693A (en) * 1992-03-20 1993-10-21 Eolas - The Irish Science And Technology Agency An induction panel heater
JP3442114B2 (ja) * 1993-08-26 2003-09-02 昭和電線電纜株式会社 ロードヒーティング制御装置
JP3536935B2 (ja) * 1994-07-21 2004-06-14 大日本インキ化学工業株式会社 階段融雪用発熱体
JP2973918B2 (ja) * 1995-12-26 1999-11-08 鹿島建設株式会社 天然芝の既設グラウンドにヒーター及びヒーティング・クーリング用ヒーター管を敷設する施工法
JPH09308695A (ja) * 1996-05-24 1997-12-02 Yoshinori Yamamoto 生体波形型エネルギー利用装置
CA2177726C (en) * 1996-05-29 2000-06-27 Theodore Wildi Low-voltage and low flux density heating system
CA2179677C (en) * 1996-06-21 2000-07-11 Theodore Wildi Extra-low-voltage heating system
JP2000088889A (ja) * 1998-09-10 2000-03-31 Tokin Corp カレントトランスとそれを用いた装置
US6379024B1 (en) * 1999-11-29 2002-04-30 Hoya-Schott Corporation Dielectric barrier excimer lamp and ultraviolet light beam irradiating apparatus with the lamp
JP3805946B2 (ja) * 2000-05-23 2006-08-09 独立行政法人科学技術振興機構 超電導ケーブル送電装置およびそれを使用した偏流防止方法
US7009855B2 (en) * 2001-10-26 2006-03-07 Minebea Co., Ltd Synchronous rectifier circuit
JP3953893B2 (ja) * 2002-06-14 2007-08-08 株式会社ティーネットジャパン 凍結防止舗装工法
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JP3637046B2 (ja) * 2002-11-28 2005-04-06 良明 ▲たか▼橋 導電線材

Also Published As

Publication number Publication date
US7778532B2 (en) 2010-08-17
NO20071554L (no) 2007-05-14
JP2008510908A (ja) 2008-04-10
NZ553956A (en) 2009-07-31
CA2578116C (fr) 2014-12-30
DE602005006817D1 (de) 2008-06-26
KR20070065335A (ko) 2007-06-22
FR2874782A1 (fr) 2006-03-03
JP4721462B2 (ja) 2011-07-13
ATE395803T1 (de) 2008-05-15
FR2874782B1 (fr) 2006-12-08
RU2007107921A (ru) 2008-10-10
CN101010988A (zh) 2007-08-01
CA2578116A1 (fr) 2006-03-09
CN101010988B (zh) 2011-09-14
RU2355132C2 (ru) 2009-05-10
UA89197C2 (ru) 2010-01-11
US20070269193A1 (en) 2007-11-22
PL1782659T3 (pl) 2008-10-31
WO2006024797A1 (fr) 2006-03-09
NO339053B1 (no) 2016-11-07
EP1782659A1 (de) 2007-05-09

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