WO2012016331A1 - Dispositif de chauffage - Google Patents

Dispositif de chauffage Download PDF

Info

Publication number
WO2012016331A1
WO2012016331A1 PCT/CA2011/000890 CA2011000890W WO2012016331A1 WO 2012016331 A1 WO2012016331 A1 WO 2012016331A1 CA 2011000890 W CA2011000890 W CA 2011000890W WO 2012016331 A1 WO2012016331 A1 WO 2012016331A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating
substrate
mobile
torch
extension
Prior art date
Application number
PCT/CA2011/000890
Other languages
English (en)
Inventor
Pat Wiley
Original Assignee
Urban Surface Solutions Inc.
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 Urban Surface Solutions Inc. filed Critical Urban Surface Solutions Inc.
Publication of WO2012016331A1 publication Critical patent/WO2012016331A1/fr

Links

Classifications

    • 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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/14—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces for heating or drying foundation, paving, or materials thereon, e.g. paint
    • 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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/16—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings
    • E01C23/18—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings for applying prefabricated markings
    • E01C23/185—Tape- or sheet-shape markers or carriers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/38—Torches, e.g. for brazing or heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D91/00—Burners specially adapted for specific applications, not otherwise provided for
    • F23D91/02—Burners specially adapted for specific applications, not otherwise provided for for use in particular heating operations

Definitions

  • This invention relates to a mobile heating device having an extension with a plurality of heating torches adjustably mountable on the extension for heating a substrate. More particularly this invention relates to a mobile jet torch heating device for heating a substrate , the heating device having an extension disposed substantially parallel to the surface with a plurality of heating torches mounted for selective placement on the extension to provide a short wide substantially flat flame for heating the surface as well as the method embodied therein.
  • heating devices which have been used in the prior art for heating substrates such as asphalt, concrete or the like.
  • Such heating devices can comprise of massive machines that can be used to lay kilometres of highways to smaller machines or devices that are utilized to heat cracked asphalt to repair same or to apply thermoplastic markings to the substrate.
  • U.S. Patent No. 6,998,010 relates to a method and apparatus for heating a surface marking, such as thermoplastic patterns in an asphalt substrate.
  • the markings may be selective for functional or decorative purposes.
  • the method involves gradually applying heat to the markings to avoid scorching and to ensure a consistent bond with the underlying substrate, even in the case of markings having a very large surface area.
  • a portable heating surface is provided having infrared heaters mounted for reciprocal movement in a travel path periodically passing over the marking and the underlying substrate. The heating permits a direct visual monitoring of the worksite to achieve optimal adhesion of the marking to the asphalt or other substrate.
  • U.S. Patent No. 6,010,329 relates to a jet pump for heat guns which includes an elongated hollow pump body lying along a horizontal axis.
  • the pump body has an inlet, a mixing section and an outlet.
  • the nozzle unit is actually aligned with the inlet for directing pressurized fluid into the inlet of the pump body.
  • prior art mobile infrared heating machines have used propane-fired infrared heaters which are more expensive to purchase and maintain than the handheld propane jet torches and they are much heavier which makes operation tiring and difficult.
  • Another problem with the mobile infrared heating machines is that they take a long time to heat up and cool down making for uneven heating in large areas. Furthermore they require a long heating area, namely longer heater bed in a direction of machine travel to provide enough heating time which makes heating uneven at the stop and start point when operating in a back and forth reciprocal motion as these heaters are commonly operated.
  • a mobile heating device which comprises a portable carriage for holding heating fuel; an extension from the carriage; a plurality of heating torches selectively mounted on said extension for heating a substrate.
  • the torches provide a short wide substantially flat flame for heating the substrate.
  • a mobile jet torch heating device for heating a substrate comprising a wheeled carriage having handles; a fuel tank carried by the wheeled carriage; an extension from the carriage disposed substantially parallel to the substrate; a plurality of heating torches mounted for selective placement on the extension, to provide a short wide substantially flat flame which produces hot gases for heating the substrate.
  • Another aspect of this invention provides a method of heating a substrate comprising: gradually heating the substrate by periodically passing at least one heater in proximity to the substrate; providing heating apparatus having a support arm extending over the substrate, wherein the heating apparatus is mounted for selective placement on the support arm and the heating apparatus moved in a travel path periodically passing over the substrate.
  • Figure 1 is the perspective view of the mobile heating device.
  • Figure 2 is another perspective view of the invention showing the plurality of heating torches.
  • Figure 3 is an enlarged perspective view of the heating torch.
  • Figure 4 is a perspective view of the heating device utilised to apply thermoplastic markings on a surface.
  • Figure 5 is another perspective view showing the use of the heating devise to repair potholes.
  • Figure 6 is a cross sectional view of an embodiment of a heating torch. Detailed Description of the Invention
  • Figure 1 generally illustrates the mobile heating device 10 which comprises a portable carriage 12 having wheels 14.
  • the rear wheels can be driven by a motor (which is not shown ) although this is an optional feature.
  • the carriage 12 is utilized to hold or carry fuel tanks, such as propane tanks 16 or other suitable fuel. Although two propane tanks were shown, one or any number of tanks may be utilized.
  • the carriage 12 includes an extension or support arm 18 which has a plurality of heating means or torches 20 which are mounted for selective adjustment and placement along the support arm 18.
  • the support arm 18 comprises a bar extending outwardly to one side of the carriage 12 as shown in Figure 1 along an axis X , which is generally disposed horizontally or substantially parallel to the substrate 40.
  • the support arm 18 includes a bracket 22 which slides along the bar 18 in a substantially parallel disposition relative to the surface or substrate 40 to be heated.
  • the bracket 22 includes two sections , namely first hollow bracket section 22a having a substantially rectangular cross section and second hollow bracket section 22b having a substantially rectangular cross section .
  • First hollow bracket section 22a is disposed perpendicular to second hollow bracket section 22b.
  • First hollow bracket section 22a slidingly receives support arm 18. This permits the plurality of torches 20 to be selectively placed along the bar 18 so that the plurality of torches produce a short flat flame.
  • the bracket 22 includes tightening mechanism 24 which in one embodiment comprises a lock nut at the end of a threaded stud that is threaded into the bracket 22 so as to bear against the vertical adjustment proportion 26 of the heating torches 20 as best seen on Figure 3. This permits adjustment of the heating torches 20 vertically relative to the substrate 40.
  • Bracket 22 also includes a second tightening mechanism 25 disposed on the top part of the first hollow bracket section 22a as best seen in Figure 2 so as to secure and tighten the position of the heating torches substantially horizontally along the bar 18 relative to the surface.
  • the second cross-section is adapted to slidingly receive the rectangular cross-section of the vertical portion 26 of the heating torches 20.This permits adjustment of the heating torches 20 vertically relative to the substrate 40.
  • the heating torches 20 include a combustion head 28 guard which has a plurality of holes therein as shown in Figure 3.
  • Figure 6 shows a cross sectional view of an embodiment of a heating torch 20.
  • the heating torch 20 has a propane orifice 25 with a venture hollow pump body 27 which is tapered slightly outwardly along the length thereof as shown and merges with the outlet 29 which has tapered sides to produce the wide narrow flame.
  • the combustion head guard 28 covers the outlet 29 and is shaped (oblong shape as shown) on the bottom to produce a wide narrow flame.
  • the structure shown in Figure 6 produces the hot gases to heat the substrate as described herein.
  • the fuel tanks 16 have the appropriate conduits 32 communicating with the heating torches 18.
  • the fuel tank nozzle also includes a safety stop 34 to prevent the nozzle 28 from contacting the surface or substrate.
  • the invention described herein includes the mounting of the propane hot air jet torches 18 onto a mobile machine 10 for the purpose of heating substrates including asphalt, concrete pavement and thermoplastic paving markings.
  • the invention described herein can be utilized so as to produce a short wide flat flame that heats a wide area with hot gases or direct flame depending on how high the device is mounted from the surface.
  • the torch enables the distribution of less intense heat over wider area than a standard propane torch. Accordingly, the invention described herein is lighter, more cost effective, provides better control of heating, is safer and easier to operate than alternate methods and devices as disclosed in the prior art.
  • Figure 4 illustrates a method of heating a substrate 40 which comprises gradually heating the substrate 40 by periodically passing at least one heater 20 in proximity to the substrate; providing heating apparatus or device 10 having a support arm 18 extending over the substrate 40 wherein the heater 20 is mounted for selective placement on the support arm 18, and moving the device in a travel path 42a, 42b periodically passing over the substrate 40.
  • the heating torches 20 provide a short and substantially flat flame to heat over the substrate 40.
  • the method comprises applying a thermoplastic safety marking 44 onto the substrate 40.
  • the substrate 40 may comprise of an asphalt surface.
  • Asphalt means a paving compound for constructing roads, driveways, walkways and the like which consist of a combination of bituminous binder, such as tar, and an aggregate, such as sand or gravel.
  • this substrate 40 can comprise concrete or other materials capable of binding thermoplastic markings 44.
  • markings comprise symbols such as arrows, crosshatched lines and are available for example from Flint Trading sold under the trademarks PreMark, HotTape and Traffic Patterns.
  • the markings 44 may be selected for a functional purpose such as traffic markings or corporate logos or maybe purely decorative.
  • thermoplastic markings and the infrared heaters that are used are not good at drying whereas the jet torch is highly effective. Any moisture present will prevent the thermoplastic from bonding properly.
  • the device 2 could be used to dry water based acrylics once they are applied to help them dry using a jet torch raised to 12 inches about the surface which would product a 650 F hot air blast at 1200 fpm velocity, This would dry the coating quickly without overheating and damaging it.
  • Figure 5 also shows another embodiment of the method whereby the mobile heating device 10 can be utilized to repair potholes.
  • the plurality of heating torches 20 can be selectively mounted on the support arm 18 by utilizing the tightening mechanisms 24 described above so that the plurality of heating torches 20 are adjusted at the right height (i.e., vertically or perpendicularly relative to the support arm 18) and horizontally along the axis X of the support arm 18 so that the flame from the plurality of torches 20 produce a substantially short flat heating flame , where the heat along the flame of the torches is generally uniform (see Figure 4) to heat the substrate 40 as the user pushes and pulls on the handles 50 to gradually heat an area of the thermoplastic safety markings 44 as shown in Figure 4 so as to bond same to the substrate.
  • the torches can be adjusted so that the flame is uniform ie does not overlap each other; or if the flames overlap they overlap uniformly along the entire flame front exposed to the substrate 40.
  • the same method can be utilized to repair the cracked pothole so that the asphalt is heated to a sufficient temperature within a range of 100 degrees to 400 degrees Fahrenheit or a temperature sufficient to cause the cracked asphalt to become malleable and repairable. Furthermore the temperature of the plurality of heating torches can be adjusted to heat the thermoplastic safety marking to a temperature which is sufficient to heat and bond the marking to the substrate.
  • markings 44 are heated in situ to temperature within a range of 100 degrees to 400 degrees Fahrenheit, or more particularly 150 degrees to 350 degrees
  • markings 44 and/or substrate 40 may be preheated prior to placement of the markings at the worksite.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Repair (AREA)

Abstract

Cette invention se rapporte à un dispositif de chauffage mobile qui présente une extension comportant une pluralité de torches chauffantes qui peuvent être montées de manière réglable sur l'extension afin de chauffer un substrat. Plus particulièrement, cette invention se rapporte à un dispositif de chauffage par torche par pulvérisation mobile permettant de chauffer un substrat. Le dispositif de chauffage présente une extension disposée de façon sensiblement parallèle à la surface, comportant une pluralité de torches chauffantes montées pour permettre un placement sélectif sur l'extension afin de donner une flamme large et courte sensiblement plate pour chauffer la surface. La présente invention se rapporte également à un procédé associé.
PCT/CA2011/000890 2010-08-06 2011-08-05 Dispositif de chauffage WO2012016331A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37149210P 2010-08-06 2010-08-06
US61/371,492 2010-08-06

Publications (1)

Publication Number Publication Date
WO2012016331A1 true WO2012016331A1 (fr) 2012-02-09

Family

ID=45558884

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2011/000890 WO2012016331A1 (fr) 2010-08-06 2011-08-05 Dispositif de chauffage

Country Status (1)

Country Link
WO (1) WO2012016331A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102817307A (zh) * 2012-08-08 2012-12-12 常熟市高思达仪器设备有限公司 用于对窨井口路面沥青加热的红外线加热器
CN102817309A (zh) * 2012-08-08 2012-12-12 常熟市高思达仪器设备有限公司 窨井口路面沥青加热用的红外线加热器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376007A (en) * 1977-01-12 1983-03-08 Ludwig Eigenmann Machine for preparing road surfaces and forming traffic regulating lines thereon
CA1235935A (fr) * 1984-04-27 1988-05-03 Patrick L. O'connor Camion pour la refection des revetements en asphalte
WO2003048458A1 (fr) * 2001-12-04 2003-06-12 Integrated Paving Concepts Inc. Procede de formation d'un motif incruste dans un revetement d'asphalte
US7252455B2 (en) * 2002-12-18 2007-08-07 Gregory Alan Larsen Multi axial asphalt heating system with up and down, forward and reverse adjustments and fold up feature adjustment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376007A (en) * 1977-01-12 1983-03-08 Ludwig Eigenmann Machine for preparing road surfaces and forming traffic regulating lines thereon
CA1235935A (fr) * 1984-04-27 1988-05-03 Patrick L. O'connor Camion pour la refection des revetements en asphalte
WO2003048458A1 (fr) * 2001-12-04 2003-06-12 Integrated Paving Concepts Inc. Procede de formation d'un motif incruste dans un revetement d'asphalte
US7252455B2 (en) * 2002-12-18 2007-08-07 Gregory Alan Larsen Multi axial asphalt heating system with up and down, forward and reverse adjustments and fold up feature adjustment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102817307A (zh) * 2012-08-08 2012-12-12 常熟市高思达仪器设备有限公司 用于对窨井口路面沥青加热的红外线加热器
CN102817309A (zh) * 2012-08-08 2012-12-12 常熟市高思达仪器设备有限公司 窨井口路面沥青加热用的红外线加热器
CN102817309B (zh) * 2012-08-08 2014-07-23 常熟市高思达仪器设备有限公司 窨井口路面沥青加热用的红外线加热器
CN102817307B (zh) * 2012-08-08 2014-07-23 常熟市高思达仪器设备有限公司 用于对窨井口路面沥青加热的红外线加热器

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