WO2024255966A1 - Dispositif de durcissement comprenant un ventilateur et un élément de déviation - Google Patents

Dispositif de durcissement comprenant un ventilateur et un élément de déviation Download PDF

Info

Publication number
WO2024255966A1
WO2024255966A1 PCT/DE2024/100524 DE2024100524W WO2024255966A1 WO 2024255966 A1 WO2024255966 A1 WO 2024255966A1 DE 2024100524 W DE2024100524 W DE 2024100524W WO 2024255966 A1 WO2024255966 A1 WO 2024255966A1
Authority
WO
WIPO (PCT)
Prior art keywords
hollow body
deflection
fan
radiation
carrier
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.)
Pending
Application number
PCT/DE2024/100524
Other languages
German (de)
English (en)
Inventor
Jan JAROSCH
Franck SWITAJ
Thomas LEISER
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.)
RelineEurope GmbH
Original Assignee
RelineEurope GmbH
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 RelineEurope GmbH filed Critical RelineEurope GmbH
Publication of WO2024255966A1 publication Critical patent/WO2024255966A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/26—Lining or sheathing of internal surfaces
    • B29C63/34—Lining or sheathing of internal surfaces using tubular layers or sheathings

Definitions

  • the present invention relates to a device for curing a lining tube with high-energy radiation, comprising LEDs as a radiation source for generating the radiation necessary for curing, a fan for cooling the LEDs and at least one deflection element for directing the air flows.
  • These unsaturated polyester or vinyl esters can be cured thermally (usually by peroxide catalysts) or by means of radiation, e.g. by UV light with photoinitiators as described for example in EP-A 23623.
  • photoinitiators e.g. by UV light
  • combination curing with a peroxide initiator used for thermal curing in combination with photoinitiators is also possible and has proven to be advantageous in particular with large wall thicknesses of the lining tubes.
  • a process for such so-called combination curing is described for example in EP-A 1262708.
  • a radiation-curing lining tube usually has an opaque outer protective film, a film which is at least The film has an inner film that is permeable to wavelengths of electromagnetic radiation and a resin-impregnated curable layer that is arranged between the inner film and the outer film.
  • the outer film tube is designed to prevent the resin used for impregnation from escaping from the curable layer and entering the environment. This requires good sealing and a good connection between the outer film tube and the resin-impregnated curable layer.
  • a hardening device is introduced into the lining tube, which has a radiation source and is guided through the lining tube in order to activate or carry out the hardening of the hardenable layers of the lining tube using the radiation energy.
  • Complete hardening of the lining tube is of great importance, i.e. a certain amount of radiation energy must be introduced into each point of the lining tube. The amount of radiation energy depends on the power output of the radiation sources and the speed at which they are passed through the lining tube.
  • UV radiation sources also known as UV lamps
  • UV lamps are often used to provide radiation energy. These are mounted on pullable devices, so-called light hoists, which are pulled through the lines lined with the lining hose by means of cables or pull ropes.
  • gas discharge lamps have been used predominantly, but these have a number of disadvantages, including high currents and voltages for ignition, varying power output over the lifetime and the risk of failure during curing.
  • LEDs are increasingly being used, which have a number of advantages over UV lamps, such as higher energy efficiency and a longer lifespan of up to 50,000 hours compared to 5,000 to 10,000 hours for UV lamps. LEDs also do not contain harmful chemicals such as mercury. [0010] However, it has proven to be problematic when using LEDs that they heat up considerably during an irradiation process, which can lead to the power output being impaired or even damage occurring.
  • the underlying problem with cooling LEDs on fairy lights is that cooling with heat dissipation outside the lining tube using long coolant tubes (e.g., EP1959183A1) is usually difficult to make economically viable.
  • long coolant tubes e.g., EP1959183A1
  • the ambient air in the lining tube is heated during curing by the fan that expands the lining tube, by the radiant energy emitted by the LEDs and their waste heat, and by the exothermic curing reaction.
  • a solution proposed in the prior art which has been filed in several variations (e.g. EP3321554B1), relates to a radial arrangement of LEDs with inwardly oriented heat sinks, wherein a volume flow is generated inside by a fan which is intended to cool the LEDs.
  • the object of the present invention was to overcome the disadvantages of the prior art and in particular to provide a device which is compact, has a flexible structure and has sufficient cooling capacity.
  • a device for curing a lining hose with high-energy radiation comprising at least one carrier device and at least one radiation source arranged on the carrier device, wherein the carrier element is designed as a hollow body at least in sections, wherein the radiation source is arranged on the outside of the hollow body section, and wherein at least one fan is included which generates an air flow through the hollow body section, so that waste heat from the radiation source arranged on the outside of the hollow body section is dissipated through the hollow body section.
  • the carrier element functions both as a carrier for the radiation source and as its heat conducting body by dissipating the heat energy emitted by the radiation source by means of conduction.
  • the carrier element has a lower temperature than the radiation source and is in direct contact with it if possible.
  • the heat generated by the radiation source is conducted through the heat conducting body, which is usually made of a material with high thermal conductivity, and then dissipated through the heat sink arranged on the inner surface of the carrier element or directly into the surrounding air.
  • the at least one fan is designed as an axial fan, in particular is arranged on the rear surface of the at least one carrier element and is designed and arranged to convey a cooling medium through the cavity of the device for generating high-energy radiation.
  • An axial fan is an electrical device that is used to move air by sucking or pushing it through the housing in an axial direction along the axis of the rotor and then expelling it.
  • the housing of the axial fan contains a cylindrical rotor consisting of a central hub and several rotating fan blades. These fan blades are aerodynamically shaped and, through their rotation, generate an air flow that ultimately flows through the housing of the fan.
  • the cooling medium can be a liquid or a gas that is used in the system to transport heat away from the LEDs or heat sinks and to protect them from overheating.
  • the preferred cooling medium is air, which can be the ambient air in the channel to be renovated or can be supplied from outside, for example by a fan.
  • Air cooling has the particular advantage of being cost-effective compared to other cooling systems such as liquid cooling or thermoelectric cooling. Air cooling systems are also generally easy to install and maintain, as they do not require complicated pipes or pumps and are therefore more flexible to use than other cooling systems. Air cooling systems are also more environmentally friendly than other cooling systems, as they do not contain any toxic contain coolants and have no undesirable effects on the environment.
  • the axial fan is particularly designed to suck in the cooling medium from the environment and to guide it through the cavity of the device for generating high-energy radiation, whereby the cooling medium comes into contact with the heat sink located there and dissipates the heat of the LEDs from there.
  • the cavity of the at least one carrier element is delimited by the inner surfaces of the at least one carrier element and is prismatic and in particular square in shape.
  • a prismatic cavity is a space that has the shape of a prism, i.e. a body with a base, preferably open, which is a polygon, and parallel side surfaces that extend perpendicular to the base.
  • a square cavity is a cavity with a square, preferably open base, which is surrounded by parallel side surfaces.
  • the shape of the cavity is not limited to a polygonal, preferably open, base area, but could also be a circle or something similar.
  • the at least one heat sink covers the inner surface of the carrier element at least partially and is in particular formed as a finned heat sink tapering towards the center of the cavity.
  • a finned heat sink has many narrow fins that are arranged parallel to each other. The air flows through the narrow gaps between the fins and removes the heat from the surface of the heat sink, with the fins being aligned in particular parallel to the flow direction of the cooling medium.
  • the at least one heat sink can also be designed as a pin heat sink.
  • a pin heat sink has many cylindrical pins that are arranged perpendicular to the inner surface of the carrier element. The pins increase the surface of the heat sink to improve heat dissipation. Pin heat sinks are particularly well suited to be used in narrow rooms because they require little space due to their compact design.
  • the at least one heat sink can also be shaped as a curved heat sink.
  • This type of heat sink has curved fins that help improve heat dissipation.
  • the curved shape extends the contact time of the cooling medium with the surface of the heat sink and at the same time increases its surface area.
  • the at least one carrier element is further limited by the outer surface and is prismatic and in particular octagonal in shape, comprising four corner surfaces and four side surfaces, the side surfaces being higher than the corner surfaces.
  • the corner surfaces represent the surfaces that are created by cutting off the tips of a square base body.
  • the at least one carrier element, as well as other components of the device according to the invention consists of aluminum or an aluminum alloy.
  • an aluminum alloy such as EN AW 6082 / AIMgSil, EN AW 5754 / AIMg3 or EN AW 2007 / AICuMgPb is particularly preferred. These alloys are characterized by high strength and corrosion resistance and are used for applications in which high strength is required at at the same time, low weight and good weldability are required.
  • the use of steel and in particular galvanized steel or other materials for the support element and the other components of the device according to the invention can also be provided.
  • the at least one radiation source is designed and arranged to emit radiation with a wavelength of 200-500 nm and in particular of 390-420 nm.
  • the radiation device preferably comprises n radiation sources, where n>6, so that at least one radiation source is attached to each side of the outer surface of the carrier element.
  • the number of radiation sources is determined in particular such that they can irradiate the entire circumference of the lining tube simultaneously.
  • the LED (light emitting diode) is preferably designed to emit light in the range of 200 to 500 nanometers and in particular of 390-420 nm, wherein it is particularly advantageous if the LEDs have a beam angle of preferably 110° to 170° and particularly preferably one of 130° to 150°.
  • the beam angle of an LED describes the area in which the light is emitted by the LED. It is the angle between the two points at which the light intensity drops to 50% of the maximum.
  • the arrangement of the LEDs is designed such that the radiation angles overlap. It is particularly preferred if the overlap is such that a threshold value of the light intensity is not undercut and/or shadows caused by other components of the device are prevented.
  • the at least one carrier element has a length of preferably 900-1100 mm and particularly preferably a length of one meter and the carrier units have a length preferably 25-31 mm.
  • the at least one device for generating and/or the carrier element and/or the carrier units can be arranged to be rotatable, so that they can be rotated about the axis of the device according to the invention, in particular during the irradiation process, in order to achieve uniform radiation of the lining tube even if one or more LEDs fail.
  • the device comprises at least one articulation device.
  • a joint device is a construction that allows two or more components of the device for curing a lining tube with high-energy radiation to move in relation to one another.
  • the joint device is designed and configured as a rotary joint, ball joint, universal joint, swivel joint or universal joint.
  • the at least one carrier device comprises at least four length-adjustable guide arms with rollers, wherein the at least four length-adjustable guide arms are arranged in particular at right angles to one another.
  • the guide arms serve to guide and position the device in the lining hose.
  • the length and alignment of the individual arm or all arms together can be adapted to the requirements of local conditions.
  • the length is adjusted so that the rollers, which preferably consist of a cylindrical body that rotates around an axis, rest against this during the curing of the hose liner.
  • the length is adjusted by moving, folding or turning parts of the arm in particular.
  • the at least one deflection device is designed and configured to deflect the heated cooling air conveyed by the fans laterally to the conveying direction after contact with the at least one cooling body, wherein a deflection plate is included which is arranged at an angle of not equal to 90°, 180°, 270° and 360° to the conveying direction of the cooling air.
  • the conveying direction is the direction in which the fan moves the cooling air.
  • the deflector plate is supported by a rod, which is open on at least one side so that the heated cooling air can escape after contact with at least one heat sink on these sides.
  • the deflector plate is made in particular from an aluminum alloy, as this is light and less susceptible to corrosion compared to other materials.
  • the deflection device can be designed and arranged to be rotatable about the longitudinal axis of the device so that the heated cooling air can heat the entire circumference of the lining tube.
  • the connecting piece of the device comprises a spacer and a connecting piece.
  • the spacer is designed and arranged to separate the connecting piece from another component of the device for curing a lining tube with high-energy radiation.
  • the spacer is preferably a rod that is open at the sides.
  • the connecting piece is designed and arranged in particular
  • the device for curing a lining tube with high-energy radiation can preferably be constructed in a modular manner.
  • the device consists of various, independent individual modules such as the device for generating high-energy radiation, the carrier device, the deflection device and the connecting piece, whereby each module fulfils a specific function and is designed and arranged to be easily integrated into the overall device.
  • Various combinations in the number and sequence of the individual modules can be implemented so that the device can be adapted to the local conditions.
  • the device comprises a connector which is connected to the fan of a first radiation device via the spacer, and the front surface of the first radiation device is further connected to a first deflection device via a carrier device, which in turn is connected to the fan of a second radiation device, and which is further connected to a second deflection device via the front surface of the second radiation device, which in turn is connected to the fan of a third radiation device, and which is further connected to a third deflection device via the front surface of the third radiation device, which is connected to the fan of a fourth radiation device via a second carrier device.
  • the at least four radiation devices are arranged offset by 45° from each other.
  • the at least four length-adjustable guide arms of the at least two carrier devices are preferably offset by 45° from each other.
  • the at least three deflection devices are offset from each other by 45°.
  • the invention is preferably used for curing resin-impregnated lining tubes
  • the device is designed and arranged to cure a lining tube with a diameter of 259 mm in pipes with a nominal width of DN 300 and a lining tube with a diameter of 389 mm in pipes with a nominal width of DN 450.
  • the light curing technique can also be used in small pipelines, such as pipelines with a diameter between 30 and 500 mm or even larger or 30-300 mm, preferably 30-150 mm, such as 100- 200 mm.
  • Figure 1 a perspective view of an embodiment of a device according to the invention
  • Figure 2 a sectional view of the device from Figure 1.
  • Figure 1 shows an embodiment of a device for curing a lining tube with high-energy radiation 1 with a carrier device 2.
  • Deflection devices 3 ensure a deflection of the air flow that is guided through the interior of the device to cool the LEDs 4.
  • the air flow itself is generated by fans (not shown).
  • a connection of several devices 1 is possible by means of connectors 5.
  • Figure 2 shows a section through the device 1 with the internal heat sinks 6 and a fan 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

L'invention concerne un dispositif pour faire durcir un tuyau de revêtement au moyen d'un rayonnement riche en énergie, comprenant au moins un dispositif de support et au moins une source de rayonnement disposée sur ce dispositif de support, caractérisé en ce que l'élément de support est conçu au moins par endroits comme un corps creux, la source de rayonnement étant disposée sur le côté extérieur de la partie corps creux, et au moins un ventilateur étant prévu et générant un courant d'air à travers la partie corps creux, de sorte que la chaleur dissipée de la source de rayonnement disposée sur le côté extérieur de la partie corps creux soit évacuée par la partie corps creux.
PCT/DE2024/100524 2023-06-14 2024-06-14 Dispositif de durcissement comprenant un ventilateur et un élément de déviation Pending WO2024255966A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023115440.0A DE102023115440A1 (de) 2023-06-14 2023-06-14 Aushärtevorrichtung mit lüfter und ablenkelement
DE102023115440.0 2023-06-14

Publications (1)

Publication Number Publication Date
WO2024255966A1 true WO2024255966A1 (fr) 2024-12-19

Family

ID=91968873

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2024/100524 Pending WO2024255966A1 (fr) 2023-06-14 2024-06-14 Dispositif de durcissement comprenant un ventilateur et un élément de déviation

Country Status (2)

Country Link
DE (1) DE102023115440A1 (fr)
WO (1) WO2024255966A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023623A1 (fr) 1979-07-30 1981-02-11 Siemens Aktiengesellschaft Procédé pour détecter le courant de charge d'un régulateur inverseur à courant continu et circuit électrique pour la mise en oeuvre dudit procédé
WO1995004646A1 (fr) 1993-08-06 1995-02-16 Brandenburger Isoliertechnik Gmbh & Co. Procede de fabrication d'une gaine de chemisage tubulaire
EP1262708A1 (fr) 2001-05-10 2002-12-04 UV Reline.tec GmbH & Co. Procédé pour rénover des tuyaux
CN1551339A (zh) * 2003-04-14 2004-12-01 ���弼����˾ 附加了导热性能的树脂基材料制造的热处置器件或散热片
DE602004004183T2 (de) * 2003-03-21 2007-10-18 Kerr Corp., Orange Lichterzeugungvorrichtung
EP1959183A1 (fr) 2007-02-19 2008-08-20 Per Aarsleff A/S Appareil et procédé pour durcir une conduite d'un pipeline
WO2018127583A1 (fr) * 2017-01-06 2018-07-12 Per Aarsleff A/S Ensemble de regarnissage de jonction entre un pipeline de dérivation et un pipeline principal, et de regarnissage d'une partie ou de l'ensemble du pipeline de dérivation
WO2018188698A1 (fr) 2017-04-12 2018-10-18 Krasowski Bernd Jan Dispositif pour rénover une conduite au moyen d'un revêtement en matière plastique
EP3321554B1 (fr) 2016-10-18 2020-04-01 Bolonia Servicios e Ingenieros, S.L. Dispositif pour durcir la garniture intérieure d'un pipeline

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018160974A1 (fr) 2017-03-03 2018-09-07 Insituform Technologies Llc Dispositif de durcissement pour le durcissement d'un revêtement de tuyau

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023623A1 (fr) 1979-07-30 1981-02-11 Siemens Aktiengesellschaft Procédé pour détecter le courant de charge d'un régulateur inverseur à courant continu et circuit électrique pour la mise en oeuvre dudit procédé
WO1995004646A1 (fr) 1993-08-06 1995-02-16 Brandenburger Isoliertechnik Gmbh & Co. Procede de fabrication d'une gaine de chemisage tubulaire
EP1262708A1 (fr) 2001-05-10 2002-12-04 UV Reline.tec GmbH & Co. Procédé pour rénover des tuyaux
DE602004004183T2 (de) * 2003-03-21 2007-10-18 Kerr Corp., Orange Lichterzeugungvorrichtung
CN1551339A (zh) * 2003-04-14 2004-12-01 ���弼����˾ 附加了导热性能的树脂基材料制造的热处置器件或散热片
EP1959183A1 (fr) 2007-02-19 2008-08-20 Per Aarsleff A/S Appareil et procédé pour durcir une conduite d'un pipeline
EP3321554B1 (fr) 2016-10-18 2020-04-01 Bolonia Servicios e Ingenieros, S.L. Dispositif pour durcir la garniture intérieure d'un pipeline
WO2018127583A1 (fr) * 2017-01-06 2018-07-12 Per Aarsleff A/S Ensemble de regarnissage de jonction entre un pipeline de dérivation et un pipeline principal, et de regarnissage d'une partie ou de l'ensemble du pipeline de dérivation
US11131418B2 (en) 2017-01-06 2021-09-28 The Charles Machine Works, Inc. Assembly for relining a junction between a branch pipeline and a main pipeline, and for relining a part of or the whole branch pipeline
WO2018188698A1 (fr) 2017-04-12 2018-10-18 Krasowski Bernd Jan Dispositif pour rénover une conduite au moyen d'un revêtement en matière plastique

Also Published As

Publication number Publication date
DE102023115440A1 (de) 2024-12-19

Similar Documents

Publication Publication Date Title
EP3610188B1 (fr) Dispositif pour rénover une conduite au moyen d'un revêtement en matière plastique
DE19758739B4 (de) Bestrahlungsvorrichtung
EP2593716B1 (fr) Dispositif de refroidissement pour modules de del cylindriques pouvant être accouplés
DE4425021B4 (de) Röntgenröhrenanordnung mit einer stationären Hülse
EP4127550B1 (fr) Dispositif de durcissement de revêtement de tuyau
DE1601569A1 (de) Brennkammer zum Erzeugen eines heissen Gasstroms
DE19843649C2 (de) Low-cost-Röntgenstrahler
DE112018002662B4 (de) Wärmeübertragungsvorrichtung und ofen, der damit versehen ist
DE102015121819A1 (de) Scheinwerfer
EP4127549B1 (fr) Dispositif de mise en place et, en particulier, de durcissement d'une chemise de canalisation
DE102017200094A1 (de) Hochleistungsstrahlfalle
DE102017002210A1 (de) Kühlvorrichtung für Röntgengeneratoren
WO2024255966A1 (fr) Dispositif de durcissement comprenant un ventilateur et un élément de déviation
EP1215707A2 (fr) Source à rayons X avec cible à métal liquide et appareil à rayons X
EP3678790B1 (fr) Tunnel d'irradiation pour des récipients et procédé d'irradiation de récipients
DE102008017376A1 (de) Generatorgehäuse für eine Windenergieanlage
DE2901681B2 (de) Röntgenröhre
DE2204773A1 (de) Verfahren zur leistungssteigerung von roentgenroehren sowie vorrichtung zur durchfuehrung des verfahrens
DE102018222449A1 (de) Gehäuse, LIDAR-Vorrichtung und Verfahren zum thermischen Regeln von Komponenten
EP2863112A1 (fr) Lampe d'opération à LED
DE1805750A1 (de) Bestrahlungsanlage mit mindestens einer Ultraviolett-Quecksilber-Hochdrucklampe
WO2002023591A1 (fr) Source de rayonnement et dispositif de rayonnement
DE2525401B2 (de) Anordnung zur erzeugung einer strahlung mit hoher intensitaet
DE102013204083A1 (de) Verfahren zur Herstellung eines fluidgekühlten Gehäuses für eine elektrische Maschine und derartiges fluidgekühltes Gehäuses
EP0482378B1 (fr) Refroidisseur d'air pour pompes hydrauliques à huile

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 24746621

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2024746621

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2024746621

Country of ref document: EP

Effective date: 20260114

ENP Entry into the national phase

Ref document number: 2024746621

Country of ref document: EP

Effective date: 20260114

ENP Entry into the national phase

Ref document number: 2024746621

Country of ref document: EP

Effective date: 20260114

ENP Entry into the national phase

Ref document number: 2024746621

Country of ref document: EP

Effective date: 20260114