EP0062631A1 - Procede pour conserver des surfaces exposees libres de glace et de neige ou pour les degeler, systeme de chauffage de surface a tubes pour la mise en oeuvre du procede, et procede de fabrication d'un tel systeme - Google Patents

Procede pour conserver des surfaces exposees libres de glace et de neige ou pour les degeler, systeme de chauffage de surface a tubes pour la mise en oeuvre du procede, et procede de fabrication d'un tel systeme

Info

Publication number
EP0062631A1
EP0062631A1 EP80902031A EP80902031A EP0062631A1 EP 0062631 A1 EP0062631 A1 EP 0062631A1 EP 80902031 A EP80902031 A EP 80902031A EP 80902031 A EP80902031 A EP 80902031A EP 0062631 A1 EP0062631 A1 EP 0062631A1
Authority
EP
European Patent Office
Prior art keywords
tubes
surface heating
heating
pipe system
tubular surface
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Withdrawn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
EP80902031A
Other languages
German (de)
English (en)
Inventor
Herbert Pferschy
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 EP0062631A1 publication Critical patent/EP0062631A1/fr
Withdrawn legal-status Critical Current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
    • F24D3/146—Tubes specially adapted for 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
    • 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
    • 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 method for keeping free or defrosting free areas of snow and ice covering by heating the free area by means of a pipe system which is laid beneath it and is heated by a medium which heats the free area, preferably under the action of a circulating device.
  • the invention further relates to a tubular surface heating for carrying out the method and a method for producing the tubular surface heating.
  • Open spaces are to be understood as traffic areas, sports fields, but also roofs, including gutters and landing bridges.
  • the method according to the invention can also be used as a pipe trace heating method and as a freezer protection for cold stores.
  • Heating by means of a heating system be it an electrical system or heating system operated by means of solid fuels, of heated water is extremely energy and cost-intensive. On the other hand, such energy is not always available or must be high
  • the object of the invention is to provide a method with which it is possible to keep free or defrost free areas of snow and ice covering using a heat source which is generally always available. State the nature of the invention
  • this object is achieved in that cold water is used as the heating medium, which is preferably taken from the groundwater, passed through the pipe system or pumped and then drained off, preferably flushed back into the groundwater.
  • the invention is based on the knowledge that only a surface temperature is required to keep free areas of snow and ice, but also to defrost existing snow or black ice, which is only slightly above 0 ° C.
  • Groundwater but also the deeper water from bodies of water, namely rivers, lakes or in the sea, has a temperature which is generally of the order of at least 6 °, but often up to 10 °. If necessary, the water of a water supply network can also have such temperatures. It is therefore possible, with such cold water, if it is passed through a Rohx system laid under the open space and then drained off again
  • water can be taken from the groundwater at a depth that results from the position and the temperature profile of the groundwater as a function of the extraction depth, in order to pump it through the pipe system installed under the open space and then flush it back into the groundwater.
  • the pipe diameter and pipe spacing as well as the flow rate are measured.
  • the heat consumption depends on the climatic conditions such as air temperature, wind speed, relative humidity, heat transfer resistance from the open surface to the air or to the snow or ice covering, the thermal conductivity of the pipes in the pipe system and the covering and in particular the thickness of the covering of the pipes by the covering from.
  • the flow rate of the water can optionally be changed automatically depending on the temperature of the coating on the surface and / or inside the coating and also depending on the climatic conditions, so that the heat supply can be limited to the extent necessary.
  • Snowfall and ice formation from humidity and cold always result in an air temperature from 0 ° C to approx. -6 ° C to -10 ° C.
  • the flow rate of the water is regulated in such a way that when the external temperature below approx. -6 ° C is just enough to prevent the pipe system from freezing.
  • the supply of heat and thus the flow rate of the water can thus be restricted to a temperature difference from -6 to -10 ° C. to +1 to + 4 ° C., which advantageously allows the operating costs of the method according to the invention to be reduced.
  • the heating can optionally also be set automatically so that, when the air temperature falls below -6 ° to -10 ° C, the open space to be kept free is generally not kept at a temperature above 0 ° C, since at such sluggish temperatures cannot form a slippery surface. It is therefore possible to empty the pipe system when temperatures below -6 ° C are reached, but if the temperature rises again, the pipe system is preheated to slightly above the freezing point of the water before the water is passed through again. This means that when the temperatures above -10 to -6 ° C that are critical for snow and black ice re-emerge, no icing of the groundwater can occur in the pipe system.
  • the pipe system can optionally be heated electrically, for example by using the pipe itself as a heating resistor or embedding it in an electrical heating wire if it is made of a suitable plastic that does not conduct electricity. You can also preheat the water, for example by using an oil, gas or heat pump heater and by means of this preheated water to preheat the pipe system.
  • the heating devices can of course also be put into operation in other cases, which, however, should remain exceptional cases.
  • the efficiency of the method according to the invention can be increased further by improving the heat transfer from the pipe system to the open area by covering the pipe system by means of a coating containing embedded heat-conducting particles.
  • the cold water is led through a pipe system laid in at least two layers one above the other, preferably firstly the layer closer to the surface and then the lower one (s). Location (s) of the pipe system flows through.
  • the distance between the layers should be at least 5 cm.
  • the groundwater gives off heat to prevent snow and ice formation on the open area. Further heat is given off in the layer or layers underneath, whereby heat is to be prevented from escaping downwards or the heat emission is to be increased upwards.
  • Tubes can be arranged on a reinforced concrete support plate at the top and bottom.
  • the second layer of the tube system in the neutral zone of the flexural tension or in the lowest area of the structure.
  • a thermal insulation layer can also be arranged under the tube system or under the supporting structure in the case of a multi-layer tube system.
  • the invention further relates to a tubular surface heating, in particular for carrying out the method described above, the tubes through which a preferably liquid heating medium flows are in the form of a snake or register.
  • DE-OS 24 42 503 a surface heating is described, with which the object is to be achieved, in particular to avoid the use of additional heating devices, to lay the tubes in such a way that when the outside temperature drops sharply or after a room has been ventilated or outdoors in the case of snowfall or ice formation, the heating has an effect on the surface to be heated when it is switched on, without there being a risk that the floor or the like, ie the embedding material can be damaged by explosive stresses caused by the expansion of the pipes.
  • the pipe material for example, rubber or the like. provided, i.e. a material that is able to absorb the volume enlargements that occur during heating itself by upsetting, so that they act, if at all, only to a small extent on the embedding material surrounding the tubes.
  • the object of the invention is the technically flawless and also cost known from DE-OS 24 42 50 to further develop moderately justifiable tube surface heating, in particular for the purposes of the method according to the invention.
  • the tubes are made of a material or coated with a substance that do not allow a bond between the tube surface and screed or covering material, and that a space is provided for them at the bending or turning points of the tubes.
  • the tubes are preferably provided with a film or paint which prevents this friction and makes the tubes slidable accordingly.
  • An alternative possibility within the scope of the invention is the covering of the tubes with a thin tube made of plastic or a textile material or a mineral fiber fabric.
  • Tubes expediently extend in the horizontal direction on both sides of the turning loop of the tubes.
  • molded pieces which can be compressed without any special effort and when together press disintegrate if necessary.
  • molded pieces can be, for example, foam molded pieces made of the material known under the trade name Styrofoam or a similar material.
  • formwork elements such as flexible strips, preferably made of plastic, can be inserted, which delimit the desired free space, which can thus be filled with foam at the installation site of the tubular floor heating. It may be possible to use strips treated on the surface in such a way that they can be detached from the resulting foam and used again at another point.
  • Another possibility is the insertion of air-filled fittings, the shell of which e.g. decomposes after a comparatively short time, so that the elastic pressure between the casing and the heating tube is eliminated.
  • the hot liquid which can be water, for example
  • a cold liquid likewise expediently water, so that the pipe system contracts and thus the desired free space at the turning and bending points is created.
  • the heating and cooling process can be repeated several times during the solidification of the embedding material to repeat.
  • statically neutral zone of the screed or covering is in need of independent protection, since this alone means that inadmissible explosive stresses in the screed or covering are largely independent of the measure of possible sliding movement between the screed or covering and pipes can be reduced.
  • the double-laid pipes can be combined into a single pipe if the pipe cross-section is divided by an intermediate wall.
  • a cross-section In the form of such a double tube, an eight cross section is also conceivable in the form of two squares placed one above the other.
  • FIG. 1 shows a section from the tube system of the tube heater for rendering the free space to be created at the turning point of a tube
  • FIG. 2 shows a data position corresponding to FIG. 1 of a possibility of the flexible embedding of a pipe at a turning point
  • Fig. 1 generally denotes, for example, the screed over a base layer, preferably designed as thermal insulation, in which the heating tubes 2 are laid, of which only one turning point is shown in FIG. 1.
  • Fig.2 From Fig.2 can be seen at 1 again the screed over a preferably designed as a thermal support layer with a channel 11 for receiving a heating tube, not shown. At 12, this channel is widened and accommodates a possibly multi-part formwork element 13 that delimits the widened part inwards.
  • Fig. 3 shows at 4 the base layer on which the screed 5 is built. It can be seen that the pipe 6 of the tubular surface heating is moved into the neutral zone, as can be seen from the force areas at 7.
  • Fig. 4 shows a holder for a tube 8 consisting of a foot 9, which is laid on the support layer 10 and two arms 11, 12 which receive the tube 8 between them in a resilient manner.
  • a holder for a tube 8 consisting of a foot 9, which is laid on the support layer 10 and two arms 11, 12 which receive the tube 8 between them in a resilient manner.
  • FIG. 5 and 6 show two pipe cross-sections for pipes which replace double-laid single pipes by providing a partition in a single pipe, which enables this pipe to be charged with the heating medium in countercurrent.
  • a better heat exchange between the two tube halves is possible due to the larger flat partition wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Structures (AREA)

Abstract

Procede pour conserver des surfaces exposees libres de neige et de glace ou pour les decongeler par rechauffage avec un systeme de tubes disposes sous celles-ci On fait circuler dans le systeme, a titre de milieu de rechauffage, de l'eau froide a une temperature d'environ 6 a 10 C, cette eau froide etant de preference d'origine souterraine et restituee a son origine.
EP80902031A 1980-10-15 1980-10-15 Procede pour conserver des surfaces exposees libres de glace et de neige ou pour les degeler, systeme de chauffage de surface a tubes pour la mise en oeuvre du procede, et procede de fabrication d'un tel systeme Withdrawn EP0062631A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/AT1980/000032 WO1982001386A1 (fr) 1980-10-15 1980-10-15 Procede pour conserver des surfaces exposees libres de glace et de neige ou pour les degeler, systeme de chauffage de surface a tubes pour la mise en oeuvre du procede, et procede de fabrication d'un tel systeme

Publications (1)

Publication Number Publication Date
EP0062631A1 true EP0062631A1 (fr) 1982-10-20

Family

ID=3681131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80902031A Withdrawn EP0062631A1 (fr) 1980-10-15 1980-10-15 Procede pour conserver des surfaces exposees libres de glace et de neige ou pour les degeler, systeme de chauffage de surface a tubes pour la mise en oeuvre du procede, et procede de fabrication d'un tel systeme

Country Status (2)

Country Link
EP (1) EP0062631A1 (fr)
WO (1) WO1982001386A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0133631A1 (fr) * 1983-08-08 1985-03-06 Devon County Council Elément échangeur de chaleur et système de chauffage ou de réfrigération sous-sol utilisant cet élément
EP0322489B1 (fr) * 1987-12-31 1992-02-26 Kohei Katsuragi Procédé pour faire fondre la neige alimenté par la chaleur interne d'une couche aquifère souterraine sans arrosage
EP0373282A1 (fr) * 1988-12-13 1990-06-20 "H.R.B. Chemie Hiroba Belgium" Procédé pour la réalisation et l'entretien d'un terrain, en particulier d'un terrain de sport, et terrain obtenu par ce procédé
US5820301A (en) * 1995-07-20 1998-10-13 Bruckelmyer; Mark Method for thawing frozen ground
AT407763B (de) 1997-09-19 2001-06-25 Verbund Austrian Hydro Power A Verkehrsweg, insbesondere für kraftfahrzeuge
NL1017787C2 (nl) * 2001-04-06 2002-10-08 Ronald Koning Paardenbak en werkwijze voor het bedrijven van een dergelijke paardenbak.

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB294728A (en) * 1927-05-17 1928-08-02 Hector Henry Garratt Improvements relating to the heating or cooling of buildings
CH209133A (de) * 1939-03-31 1940-03-31 Luchsinger Emil Strahlungsheizungs- bezw. Kühlanlage.
US3521699A (en) * 1969-04-16 1970-07-28 Allen T Van Huisen Earth energy conservation process and system
DE2136660A1 (de) * 1971-07-22 1973-02-01 Reinhold Brinkmann Heizungsrohr
DE2361352C2 (de) * 1973-12-08 1984-10-04 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Wärmetauscher
DE2442503A1 (de) * 1974-09-05 1976-03-18 Herbert Dipl Ing Pferschy Flaechenheizung
DE2503196C3 (de) * 1975-01-27 1978-12-21 Karl Heinz 8000 Muenchen Moess Heizvorrichtung für Verkehrswege
DE2527500A1 (de) * 1975-06-20 1976-12-23 Peter Ing Grad Floegel Waermeuebertragungsvorrichtung
CH606937A5 (en) * 1976-07-15 1978-11-30 Stramax Ag Covering compound for flat heating system
DE2755323A1 (de) * 1977-12-12 1979-06-13 Karl Heinrich Ing Grad Notter Beheizbarer fussboden
DE2913151A1 (de) * 1979-04-02 1980-10-23 Herbert Dipl Ing Pferschy Verfahren zum freihalten oder abtauen von freiflaechen von schnee und eisbelag, roehrenflaechenheizung zur durchfuehrung des verfahrens sowie verfahren zur herstellung der roehrenflaechenheizung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8201386A1 *

Also Published As

Publication number Publication date
WO1982001386A1 (fr) 1982-04-29

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