EP3764737B1 - Frostschutz-heizkabelvorrichtung - Google Patents

Frostschutz-heizkabelvorrichtung Download PDF

Info

Publication number
EP3764737B1
EP3764737B1 EP19185884.4A EP19185884A EP3764737B1 EP 3764737 B1 EP3764737 B1 EP 3764737B1 EP 19185884 A EP19185884 A EP 19185884A EP 3764737 B1 EP3764737 B1 EP 3764737B1
Authority
EP
European Patent Office
Prior art keywords
heating cable
metal pipe
cable device
icing
icing heating
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
EP19185884.4A
Other languages
English (en)
French (fr)
Other versions
EP3764737C0 (de
EP3764737A1 (de
Inventor
Michael Strupinskiy
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.)
Gammaswiss SA
Original Assignee
Gammaswiss SA
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 Gammaswiss SA filed Critical Gammaswiss SA
Priority to EP19185884.4A priority Critical patent/EP3764737B1/de
Priority to RU2020105265A priority patent/RU2020105265A/ru
Publication of EP3764737A1 publication Critical patent/EP3764737A1/de
Application granted granted Critical
Publication of EP3764737B1 publication Critical patent/EP3764737B1/de
Publication of EP3764737C0 publication Critical patent/EP3764737C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H05B3/40—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
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/076—Devices or arrangements for removing snow, ice or debris from gutters or for preventing accumulation thereof
    • E04D13/0762—De-icing devices or snow melters
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/10—Snow traps ; Removing snow from roofs; Snow melters
    • E04D13/103—De-icing devices or snow melters
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/08—Down pipes; Special clamping means therefor
    • E04D2013/088—De-icing devices or snow melters
    • 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
    • H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
    • H05B2214/02—Heaters specially designed for de-icing or protection against icing

Definitions

  • the present invention relates to an anti-icing heating device to prevent the formation of ice, or to melt ice or snow, in particular in gutters and drainpipes, and on roofs.
  • the anti-icing heating device may also be used in other applications such as on sidewalks and roads and other surfaces which could be covered with ice or snow in cold weather
  • anti-icing heating systems are either based on a heated fluid flowing in pipes that are installed in areas where the anti-icing function is required, or by electrical heating cables.
  • Electrical cables have the advantage of greater flexibility and ease of installment. Pipes carrying heated liquids typically require higher installation costs and are less easy to adapt to the geometry of different structures compared to electrical heating cables that are easy to install and connect to a heating control unit.
  • Electrical heating cables typically comprise conducting wires embedded in an insulating material that is adapted for supporting the heat generated by the joule effect in the conducting wire.
  • an object of the invention to provide an anti-icing heating system that is easy to install and to control, yet is very effective for melting snow or ice or preventing formation of snow or ice in building structures, in particular on roofs, along roof edges, in roof gutters and drainpipes and in other areas where ice may form along buildings or manmade structures.
  • an anti-icing heating system that has a uniform heat transfer to the surrounding environment, in particular adapted for placement in gutters, drainpipes and other channels in which water may flow or collect.
  • an anti-icing heating cable device adapted for mounting in or on man-made structures including gutters, drainpipes and roofs, comprising an electrical heating cable including at least one electrical conducting wire surrounded by an insulator.
  • the anti-icing heating cable further comprises a tubular metal pipe comprising an inner cavity within which the electrical heating cable is mounted.
  • the electrical heating cable is an electrical resistive heating cable.
  • the tubular metal pipe comprises corrugations comprising juxtaposed radially outer ring portions and radially inner ring portion surrounding the inner cavity.
  • the thermal regulation filler comprises quartz particles.
  • the thermal regulation filler comprises polymer particles or beads.
  • the orifices are arranged in an inner ring portion of corrugations of the metal pipe.
  • the anti-icing heating cable 1 may be easily installed in a gutter 10a, for instance a gutter at the edge of a building rooftop, or on a rooftop, by laying the cable in the gutter so that it rests on the bottom of the gutter, respectively by laying the cable on the rooftop.
  • the anti-icing heating cable 1 may also be easily installed in a drainpipe 10b by simply pulling it through the drainpipe.
  • the anti-icing heating cable may be fixed, for instance at discrete intervals, by rivets, clamps, screws, welding, or bonding with an adhesive, or by other fixing means, to the gutter, drainpipe or other building structure along which it is installed.
  • the anti-icing heating cable may also be fixed on flat structures in a linear fashion or bent into curved shapes as needed to adjust to the desired topology of the structure to which it is attached and the surface area to be covered by the anti-icing system.
  • the electrical heating cable 2 may be a cable of a type that is per se well-known for anti-icing applications in buildings and other manmade structures, such cables typically comprising one or more electrical conducting wires 5a, 5b surrounded by at least an insulator 6.
  • the heating cable may be a resistive heating cable.
  • the heating cable may be a self-regulating heating cable.
  • the electrical conducting wires are embedded in a conductive core 11, for instance of a conductive polymer matrix, that is surrounded by the insulator 6, such electrical heating cables being per se well known.
  • Electrical heating cables may be connected to a control system that regulates the current based on temperature measurements by temperature sensors to ensure that the temperature in the immediate surrounding of the cable is above freezing point.
  • the heating cable may be a self-regulating temperature level cable that does not require a feed-back from temperature sensors. Auto regulation of such a cable is performed by the resistance properties of the conducting wires embedded in the core, where the rise in temperature increases the resistance such that the current is reduced and the power output remain at a level configured to keep the temperature in the immediate surrounding of the cable above freezing point, for instance in a range of typically 1 to 5 degrees centigrade.
  • the radially inner 8b and outer 8a portions forming the corrugations 8 encircle the inner cavity by 360 degrees.
  • the radially inner and radially outer portions 8a, 8b forming the corrugations may only partially surround the inner cavity 7, for instance forming sectors interconnected by flat portions.
  • the corrugations 8 advantageously provide increased mechanical resistance against crushing of the tube compared to a non-corrugated cylindrical tube, as well as a greater surface area for heat transfer to the surrounding environment.
  • the corrugations also advantageously allow the cable 1 to be bent into curved shapes without buckling of the pipe.
  • the metal pipe 3 comprises orifices 9 arranged at intervals along the length of the metal pipe 3, whereby in the illustrated embodiment the orifices 9 are provided in the troughs formed by the inner ring portion 8b of the corrugations 8.
  • the orifices 9 may advantageously extend over a certain arc angle ⁇ and there may be a plurality of orifices circumferentially distributed around the metal pipe, for instance between 2 to 4 orifices.
  • the thermal regulation filler 4 may comprise loose particles of a material selected for its heat capacity and/or conductive properties to regulate the transfer of heat between the electrical heating cable 2 and the metal pipe 3, and to regulate the heat latency, for a smoother fluctuation of the change in temperature as a function of the electrical current flowing in the electrical heating cable 2.
  • the thermal regulation filler 4 may comprise particles, beads or solid structures in a continuous or discrete arrangement within the inner cavity 7 such that they are smaller than the orifices 9 provided in the metal pipe 3 to allow water to pass therethrough.
  • the filler material in such a variant may thus also serve to regulate heat transfer in an embodiment in which water from the external environment can enter into and exit out of the inner cavity 7 of the metal pipe 3.
  • Embodiments of the invention thus increase the surface area of the heating element and thus increase the heat flow.
  • the metal pipe 3 provides greater durability, but also improves protection against vandalism by also hiding and protecting the electrical heating cable from the vandals.
  • the temperature in the immediate surrounding of the heating cable is also more smoothly adjusted due to the use of the metal pipe which receives the heat from the heating cable with delay and transfers it to the environment.
  • a roof anti-icing system enables snow and ice crust removal when placed in gutters, drain pipes and rooftops.
  • accumulated snow and ice in gutters are melted around the anti-icing heating cable which thus forms a channel therearound for the outflow of melt water.
  • the heat latency of the anti-icing system 1 even if the electrical current is interrupted for a short period, stored heat energy in the cable 1 is released over a certain period of time thus preventing rapid re-freezing of water around the cable that would block the melt water channel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Resistance Heating (AREA)
  • Road Paving Structures (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Claims (14)

  1. Frostschutz-Heizkabelvorrichtung (1), die zum Montieren in oder an menschengemachten Strukturen angepasst ist, die Rinnen, Ablaufrohre und Dächer umfassen, und die ein elektrisches Heizkabel (2) umfasst, das mindestens einen elektrisch leitenden Draht (5, 5a, 5b) umfasst, der von einem Isolator (6) umgeben ist, dadurch gekennzeichnet, dass die Frostschutz-Heizkabelvorrichtung ferner ein röhrenförmiges Metallrohr (3) umfasst, das einen inneren Hohlraum (7) umfasst, in dem das elektrische Heizkabel (2) montiert ist, und dadurch, dass ein Wärmeregelungsfüllstoff (4) innerhalb des inneren Hohlraums (7) zwischen dem elektrischen Heizkabel (2) und dem Metallrohr (3) montiert ist, wobei der Wärmeregelungsfüllstoff Partikel oder Perlen aus isolierendem Material umfasst.
  2. Frostschutz-Heizkabelvorrichtung nach Anspruch 1, wobei das elektrische Heizkabel (2) widerstandsbehaftet ist.
  3. Frostschutz-Heizkabelvorrichtung nach Anspruch 1, wobei das elektrische Heizkabel (2) selbstregelnd ist.
  4. Frostschutz-Heizkabelvorrichtung nach einem der vorhergehenden Ansprüche, wobei das röhrenförmige Metallrohr Riffelungen (8) umfasst, die nebeneinanderliegende radial äußere Ringabschnitte (8a) und radial innere Ringabschnitte (8b) umfassen, die den inneren Hohlraum umgeben.
  5. Frostschutz-Heizkabelvorrichtung nach einem der vorhergehenden Ansprüche, wobei ein Verhältnis Di / W eines Innendurchmessers (Di) des röhrenförmigen Metallrohrs in Bezug auf eine/n Höchstdicke oder -durchmesser (W) des elektrischen Heizkabels in einem Bereich von 1,1 bis 3, vorzugsweise in einem Bereich von 1,2 bis 2, liegt.
  6. Frostschutz-Heizkabelvorrichtung nach einem der vorhergehenden Ansprüche, wobei der Wärmeregelungsfüllstoff Quarzpartikel umfasst.
  7. Frostschutz-Heizkabelvorrichtung nach einem der vorhergehenden Ansprüche, wobei der Wärmeregelungsfüllstoff Polymerpartikel oder -perlen umfasst.
  8. Frostschutz-Heizkabelvorrichtung nach einem der vorhergehenden Ansprüche, wobei das Metallrohr (3) Öffnungen (9) umfasst, die den Durchgang von Fluiden zwischen dem Inneren und dem Äußeren des Metallrohrs erlauben.
  9. Frostschutz-Heizkabelvorrichtung nach dem vorhergehenden Anspruch, wobei die Öffnungen in einem inneren Ringabschnitt (8b) von Riffelungen (8) des Metallrohrs angeordnet sind.
  10. Frostschutz-Heizkabelvorrichtung nach dem vorhergehenden Anspruch, wobei eine Vielzahl von Öffnungen in Umfangsrichtung um den inneren Hohlraum (7) herum verteilt sind.
  11. Frostschutz-Heizkabelvorrichtung nach einem der vorhergehenden Ansprüche, wobei das Metallrohr aus Kupferlegierung besteht.
  12. Frostschutz-Heizkabelvorrichtung nach einem der vorhergehenden Ansprüche, wobei das Metallrohr aus einer Stahllegierung besteht.
  13. Frostschutz-Heizkabelvorrichtung nach einem der vorhergehenden Ansprüche, wobei das Metallrohr mit einer Polymerschicht beschichtet ist.
  14. Frostschutz-Heizkabelvorrichtung nach einem der vorhergehenden Ansprüche, wobei das Metallrohr mit einer Farbe bemalt ist.
EP19185884.4A 2019-07-11 2019-07-11 Frostschutz-heizkabelvorrichtung Active EP3764737B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19185884.4A EP3764737B1 (de) 2019-07-11 2019-07-11 Frostschutz-heizkabelvorrichtung
RU2020105265A RU2020105265A (ru) 2019-07-11 2020-02-05 Антиобледенительное устройство

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19185884.4A EP3764737B1 (de) 2019-07-11 2019-07-11 Frostschutz-heizkabelvorrichtung

Publications (3)

Publication Number Publication Date
EP3764737A1 EP3764737A1 (de) 2021-01-13
EP3764737B1 true EP3764737B1 (de) 2023-12-27
EP3764737C0 EP3764737C0 (de) 2023-12-27

Family

ID=67253831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19185884.4A Active EP3764737B1 (de) 2019-07-11 2019-07-11 Frostschutz-heizkabelvorrichtung

Country Status (2)

Country Link
EP (1) EP3764737B1 (de)
RU (1) RU2020105265A (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2111251A (en) * 1936-09-19 1938-03-15 Anaconda Wire & Cable Co Icicle melter
US2507039A (en) * 1947-12-12 1950-05-09 Frederick W Miller Deicing device for roofs
US4100673A (en) * 1977-05-05 1978-07-18 Leavines Joseph E Method of making high temperature parallel resistance pipe heater
US4791277A (en) * 1987-02-09 1988-12-13 Montierth Garry L Heating and insulation arrangement for a network of installed pipes and method
BR9004240A (pt) * 1990-08-28 1992-03-24 Petroleo Brasileiro Sa Processo de aquecimento eletrico de tubulacoes
US6097008A (en) * 1998-10-19 2000-08-01 Mahin; Kenneth L. Sewer vent pipe anti ice-build-up apparatus

Also Published As

Publication number Publication date
RU2020105265A3 (de) 2021-08-05
EP3764737C0 (de) 2023-12-27
EP3764737A1 (de) 2021-01-13
RU2020105265A (ru) 2021-08-05

Similar Documents

Publication Publication Date Title
US7203419B2 (en) Heated conduit
US4917175A (en) Corrugated heat pipe
RU2392398C1 (ru) Устройство для удаления снега и льда с карнизного свеса крыши
KR101446736B1 (ko) 내구성이 향상된 히팅케이블, 그리고 이를 이용한 스노우멜팅 및 히팅 시스템
EP3764737B1 (de) Frostschutz-heizkabelvorrichtung
RU2806392C2 (ru) Антиобледенительное устройство
JP3216772U (ja) ルーフヒーティング装置
RU107804U1 (ru) Устройство для предотвращения образования наледи и сосулек на карнизном свесе крыши
EP3320158B1 (de) Tafelmontagesystem, verfahren zur bereitstellung einer fassadenverkleidung an einem gebäude und kombination aus teilen zur verwendung in einem tafelmontagesystem
RU108062U1 (ru) Антиобледенительная система
JP3212072U (ja) 折板二重葺き屋根用融雪装置
GB2037971A (en) Heating pipe
RU193157U1 (ru) Краевая плита железнодорожной платформы
EP3370026B1 (de) Spiralwärmetauscher
KR102661924B1 (ko) 관로삽입형 발열선
JP4386808B2 (ja) 融雪装置及び融雪方法
CN215981197U (zh) 管道支撑结构
JPH07119335A (ja) 融雪用電熱ヒータ線の配設構造及びこれに用いる配線金具
RU2732287C1 (ru) Система защиты кровли и водостоков от обледенения
JP2009174295A (ja) ヒーター間隔自在変型輻射熱形屋根融雪装置
JP2002088987A (ja) 融雪波形屋根
KR20230026026A (ko) 관로삽입형 발열선
JP2002238137A (ja) 落雪防止装置
JPH0199425A (ja) 着氷雪防止装置
JP3927201B2 (ja) 電熱式融雪方法およびその装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210625

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230522

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230804

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602019043876

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

U01 Request for unitary effect filed

Effective date: 20231231

P04 Withdrawal of opt-out of the competence of the unified patent court (upc) registered

Effective date: 20240105

U07 Unitary effect registered

Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI

Effective date: 20240110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240328

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240328

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231227

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240327

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231227