EP2935967A1 - Dispositif d'éclairage ainsi que procédé d'activation du durcissement d'une gaine de revêtement - Google Patents

Dispositif d'éclairage ainsi que procédé d'activation du durcissement d'une gaine de revêtement

Info

Publication number
EP2935967A1
EP2935967A1 EP13814114.8A EP13814114A EP2935967A1 EP 2935967 A1 EP2935967 A1 EP 2935967A1 EP 13814114 A EP13814114 A EP 13814114A EP 2935967 A1 EP2935967 A1 EP 2935967A1
Authority
EP
European Patent Office
Prior art keywords
range
lamp
resin
curing
curable
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Withdrawn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
EP13814114.8A
Other languages
German (de)
English (en)
Inventor
Herbert Wind
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.)
SML Verwaltungs GmbH
Original Assignee
SML Verwaltungs 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 SML Verwaltungs GmbH filed Critical SML Verwaltungs GmbH
Publication of EP2935967A1 publication Critical patent/EP2935967A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
    • F16L55/1656—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section materials for flexible liners

Definitions

  • the present invention relates to the use of bulbs for curing a lining tube and a method for
  • liners Fiber tubing, referred to as liners, also referred to as liners, is inserted into the conduit system. After insertion, the lining tube is widened so that it snugly fits against the inner wall of the conduit system. Subsequently, the resin
  • Lining hose usually has an opaque outer protective film, an inner film which is permeable to electromagnetic radiation for at least certain wavelength ranges, and a fiber-impregnated fiber band which is arranged between the inner film and the outer film.
  • Polyester resins or vinyl ester resins used which may be dissolved for example in styrene and / or an acrylic ester. These unsaturated polyester or vinyl esters can be thermally (usually by
  • Peroxide catalysts or by radiation, e.g. by UV light with photoinitiators, as described for example in EP-A 23623, cured.
  • combination hardening with a peroxide initiator used for the thermal curing in combination with photoinitiators are possible and have proved to be advantageous especially for large wall thicknesses of the lining hoses.
  • a method for such a so-called combination curing is described for example in EP-A 1262708.
  • Unsaturated polyester or vinyl ester resins undergo shrinkage upon curing, which compromises the stability of the rehabilitated conduit system in later operation
  • UV lamps are usually used for the curing of the known lining hoses. These have maxima of the power output in a range of a wavelength of the emitted
  • electromagnetic radiation in a range of less than 300 nm.
  • UV lamps have a relatively short life.
  • UV lamps have a non-optimal efficiency, so that due to the resulting heat development, a curing of the
  • Lining hoses may need to be delayed to a Inner lining of the lining hose should not be damaged. Also, UV light may be undesirable to the human eye. In addition, the often occurring in UV lamps mercury is usually undesirable.
  • the present invention has the object,
  • At least one curable and / or hardening layer comprises at least one fiber band impregnated with at least one resin, wherein the illuminant comprises at least fifty percent (50%) of the radiation energy in a wavelength range from 351 to 800 nm, in particular in a range from 380 nm to 800 nm, in particular in a range of 380 nm to 780 nm, preferably in a range of 380 nm to 700 nm, particularly preferably in a range of 390 nm to 470 nm, or in a range of 400 nm to 800 nm, provides or can provide.
  • the illuminant comprises at least fifty percent (50%) of the radiation energy in a wavelength range from 351 to 800 nm, in particular in a range from 380 nm to 800 nm, in particular in a range of 380 nm to 780 nm, preferably in a range of 380 nm to 700 nm, particularly preferably in a
  • the illuminant be at least sixty percent (60%), at least seventy percent (70%), at least eighty percent (80%) or at least ninety percent (90%) of the radiant energy in a wavelength range from 351 to 800 nm, in particular in a range from 380 nm to 800 nm, in particular in a range from 380 nm to 780 nm, preferably in a range from 380 nm to 700 nm,
  • Curing at a wavelength in a range of 351 to 800 nm has the particular advantage that, instead of UV lamps, bulbs with a longer-wave spectrum of electromagnetic radiation can be used. For example, can
  • Curing a lining tube advantageously at least one xenon lamp can be used.
  • Xenon arc lamps and mercury vapor lamps are known. However, these known bulbs serve to provide UV light and thus do not provide over 50% of the radiant energy within the range of 351 nm to 380 nm.
  • electromagnetic radiation of the lamps used is harmless to the human eye.
  • Lining hoses with high wall thickness of the curable and / or curing layer of, for example, up to 30 mm can be cured purely by electromagnetic radiation.
  • the said bulbs on a higher efficiency and lower heat radiation. This leads in particular to a
  • Curing time of the lining tube can be shortened without the inner protective film being damaged by excessive temperatures.
  • xenon lamps allow about three times higher light output than the commonly used UV lamps.
  • the said bulbs, such as xenon lamps have an increased lifetime compared to UV lamps.
  • the life of UV lamps is usually no more than 750 hours, whereas xenon lamps have a lifetime of up to 3000 Operating hours may have.
  • Transport systems laid a significant advantage, because it can be reduced in time during the rehabilitation unavoidable impairment of the flow of traffic management systems.
  • Piping systems of any kind for the transport of liquid or gaseous media are understood that can be operated at reduced pressure, normal pressure or pressure. Examples are here
  • Pipelines of all kinds piping systems for the transport of media in chemical plants and production facilities, pressure pipes such as pressure water pipes and drinking water pipes and in particular
  • Curing of lining hoses is particularly suitable for the rehabilitation of such sewer pipes in sewer systems.
  • the lining hoses generally have as curable and / or hardening layer one or more slivers, which are impregnated with a curable resin.
  • curable and / or hardening layer one or more slivers, which are impregnated with a curable resin.
  • all products known to the person skilled in the art in the form of woven fabrics, knitted fabrics, mats or nonwovens which may contain fibers in the form of long continuous fibers or short fibers are suitable as fiber slivers.
  • felts in the context of the invention are also to be understood as felts.
  • a felt is a
  • Fibers and plant fibers are usually felts dry needle punching (so-called needle felting) or by solidification with water jets emerging from a nozzle beam under high pressure.
  • the individual fibers in the felt are intertwined with each other.
  • Felts have a good temperature resistance and are usually moisture-repellent, which can be advantageous when used in fluid-carrying systems.
  • the length of the fibers used is not subject to any special
  • the type of fibers used is subject to no restriction.
  • glass fibers, carbon fibers or plastic fibers such as aramid fibers or fibers of thermoplastic materials such as
  • Polyesters or polyamides or polyolefins known to those skilled in the art having their properties and being commercially available in a wide variety.
  • glass fibers are generally preferred; However, if, for example, a particular heat resistance of importance, for example, aramid fibers or carbon fibers can be used, which can offer advantages over glass fibers in terms of strength at higher temperatures.
  • the liner hoses may be one or more slivers
  • Curing upon irradiation with electromagnetic radiation having a wavelength has a range from 380 nm to 800 nm, in particular in a range from 380 nm to 700 nm, preferably in a range of 390 nm to 470 nm, or in a range of 400 nm to 800 nm at least one absorption maximum.
  • At least one absorption maximum in these wavelength ranges has proved to be particularly advantageous, especially when, for example, commercially available xenon lamp for providing the required electromagnetic radiation are used.
  • hardening layer at least one unsaturated polyester resin
  • Photochemically initiated cationic polymerization curable epoxy resins have proven to be particularly advantageous to provide the thermosetting and / or curable layer.
  • a photoinitiator system with an initiator and a sensitizer, wherein the initiator in particular an onium salt, preferably an aryliodonium salt and / or a
  • Arylsulfonium salt, and / or the sensitizer is an acylphosphine oxide, a diacylphosphine oxide, an alpha-dicarbonyl compound, an alpha-hydroxy ketone, an aromatic amine and / or an aromatic polycyclic hydrocarbon.
  • Lining tube comprises a curable by photochemically initiated cationic polymerization epoxy resin to use a combination of an initiator and a so-called sensitizer. This may be advantageous since in the wavelength range above 350 nm and in particular in the range of 351 to 800 nm are not always without an initiator system of initiator and sensitizer cations required for cationic curing can be generated.
  • the wavelength of the light used for curing depends on the type of initiator (when using initiators without sensitizers) or the type of sensitizer. When initiators are used alone, the wavelength is usually in the UV range, preferably in the range from about 250 to about 350 nm. However, the resin-forming monomers themselves often also absorb in this region, which can adversely affect curing.
  • visible light having a wavelength in the range of about 360 to about 800 nm can be used.
  • the penetration depth of the light is usually better, that is, relatively thick layers can be cured; but the reaction is usually slower because the visible light is not as energy rich as short-wave UV light, whose penetration depth is again lower.
  • the sensitizer Upon exposure to actinic light having a wavelength in the range of 360 to 800 nm, the sensitizer decomposes into radicals which generate the required cations, usually Lewis acids or Bronsted acids, by electron transfer or redox reactions from the initiators.
  • radicals usually Lewis acids or Bronsted acids
  • Sensitizer depends on the ability of the initiator of the
  • Sensitiser released electron For compounds with a comparatively high reduction potential (e.g.
  • Suitable sensitizers are known to those skilled in the art and described in the literature. Basically, the sensitizers are like those in the cationic curing of dental
  • Preferred sensitizers are alpha-dicarbonyl compounds (WO 96/13538), alpha-hydroxy ketones (US Pat. No. B 6,245,827), acylphosphine oxides and diacylphosphine oxides (WO 01/44873) and also aromatic
  • a group of preferred alpha-dicarbonyl compounds are those of structure A (CO) (CO) B wherein A and B may be the same or different and be a hydrogen atom or an optionally substituted aryl, alkyl, alkaryl, aralkyl group or A and B may together form a substituted or unsubstituted cycloaliphatic, aromatic or heteroaromatic ring.
  • a and B may be the same or different and be a hydrogen atom or an optionally substituted aryl, alkyl, alkaryl, aralkyl group or A and B may together form a substituted or unsubstituted cycloaliphatic, aromatic or heteroaromatic ring.
  • Preferred compounds are sold under the name Lucirin TPO ® (BASF SE) available diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide or bis (2,4,6-trimethylbenzoyl) phenylphosphine oxide, which is also commercially available. Further preferred acylphosphine oxides have the
  • Ar-CO-P O
  • Ar Ar
  • Ar may represent an aromatic group (the same or different).
  • sensitizers By the addition of sensitizers, it is possible to carry out the curing with light of relatively low intensity. In addition, they allow a deeper penetration of the light.
  • the weight ratio of initiator to sensitizer may generally be in the range of 30:70 to 70:30, preferably in the range of 40:60 and 60:40.
  • the resin preferably contains 0.02 to 10, in particular 0.05 to 5
  • % By weight, based on the total weight of the monomer components, of initiator or initiator system.
  • Foil tube comprises, wherein in particular the at least one curable and / or hardening layer between the inner and the outer protective film can be arranged or arranged, and wherein
  • the inner protective film for electromagnetic radiation having a wavelength in a range of 351 nm to 800 nm, in particular in a range of 380 nm to 800 nm, preferably in a range of 380 nm to 700 nm, particularly preferably in a range of 390 nm to 470 nm, or in a range of 400 nm to 800 nm, is largely transparent.
  • the lining hose can be provided on one or both sides of the curable and / or hardening layer for protection against sticking or damage with an outer protective film and an inner protective film, in particular in the form of plastic films.
  • an outer protective film and an inner protective film in particular in the form of plastic films.
  • the inner protective film which is largely permeable to the wavelength of the light used for irradiation, so as not to affect the curing.
  • the outer protective film should be largely opaque to prevent premature and unwanted curing of the
  • the originally outer protective film to the inner protective film since the hose is everted.
  • the original (before insertion) outer protective film should be transparent to the light used for irradiation and other measures should be taken to avoid premature curing as long as the lining tube is not inverted.
  • nm has at least one absorption maximum.
  • Such a photoinitiator has to improve the
  • the at least one curable and / or hardening layer has a wall thickness in a range of 10 mm to 40 mm, in particular in a range of 12 mm to 30 mm.
  • gas discharge lamps are short arc lamps, stroboscopic lamps,
  • Flash lamps in particular a xenon lamps and / or mercury xenon lamps for curing the lining tube with at least one activatable and / or hardening layer, wherein the at least one curable and / or hardening layer at least one impregnated with a resin sliver used ..
  • Gas discharge lamps short arc lamps, arc lamps, in particular xenon lamps and / or mercury-xenon lamps with maxima of the power output with a wavelength in the range of 351 to 800 nm have a variety of advantages for providing the necessary electromagnetic radiation for curing of
  • Electromagnetic radiation of the lamps used does not harm the human eye.
  • Lining hoses with high wall thickness of the curable and / or thermosetting layer, for example, 30 mm can be cured easily.
  • the said bulbs on a higher efficiency and lower heat radiation.
  • the at least one resin of the at least one resin-impregnated one is
  • the invention also provides a method for refurbishing
  • Management systems comprising the following steps, in particular in this order:
  • Radiation energy in a wavelength range of 351 nm to 800 nm in particular in a range of 380 nm to 800 nm, preferably in a range of 380 nm to 700 nm, preferably in a range of 390 nm to 470 nm, or in a range of 400 nm to 800 nm, for curing the at least one curable and / or hardening layer.
  • Section of the conduit system can be directly, e.g. by means of a winch or by inserting an inverted liner by means of compressed air or by injecting water into the pipe. This is particularly useful when - in a preferred embodiment of the invention - house connection or side channels, which depart from a main channel to be rehabilitated, as it is z. B is described in US-A 6,227,764
  • the liner is then expanded, for example by compressed air, so that it is tight against the inner wall of the pipe to be rehabilitated
  • a light source is pulled through the lining tube at a certain speed, which depends on the desired cure, which can be controlled by tracking suitable parameters.
  • the method according to the invention comprises the following steps:
  • At least one luminous means in particular in the form of at least one gas discharge lamp, at least one stroboscopic lamp, at least one flashlamp, at least one Short arc lamp and / or at least one arc lamp, in particular at least one xenon lamp, and / or at least one mercury xenon lamp, wherein the at least one light source at least fifty percent (50%) of the
  • Radiation energy in a wavelength range of 380 nm to 800 nm preferably in a range of 380 nm to 700 nm, more preferably in a range of 390 nm to 470 nm, or in a range of 400 nm to 800 nm, provides or can provide ;
  • the at least one lamp at a speed in a range of 50 cm / min to 300 cm / min, in particular in a range of 80 cm / min to 200 cm / min through the Lining hose is performed.
  • Speeds on the order of 50 cm / min to 300 cm / min have proven to be suitable in many cases to achieve a desired curing of the lining tube using electromagnetic radiation of at least fifty percent (50%) of the radiant energy in a range from 351 nm to 800 nm.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention concerne l'utilisation d'un dispositif d'éclairage pour durcir une gaine de revêtement comprenant une couche durcissant et/ou durcissable à l'aide d'au moins un rayonnement électromagnétique. La ou les couches durcissant et/ou durcissables comprennent au moins une bande de fibres imprégnée avec au moins une résine. Le dispositif d'éclairage délivre ou peut délivrer au moins cinquante pour cent (50%) de l'énergie de rayonnement dans une plage de longueur d'onde allant de 351 à 800 nm, en particulier de 380 nm à 800 nm, notamment de 380 nm à 700 nm, de préférence de 390 nm à 470 nm ou de 400 nm à 800 nm. L'invention concerne également un procédé de durcissement de gaines de revêtement.
EP13814114.8A 2012-12-20 2013-12-18 Dispositif d'éclairage ainsi que procédé d'activation du durcissement d'une gaine de revêtement Withdrawn EP2935967A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012024906 2012-12-20
PCT/EP2013/077254 WO2014096111A1 (fr) 2012-12-20 2013-12-18 Dispositif d'éclairage ainsi que procédé d'activation du durcissement d'une gaine de revêtement

Publications (1)

Publication Number Publication Date
EP2935967A1 true EP2935967A1 (fr) 2015-10-28

Family

ID=49883088

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13814114.8A Withdrawn EP2935967A1 (fr) 2012-12-20 2013-12-18 Dispositif d'éclairage ainsi que procédé d'activation du durcissement d'une gaine de revêtement

Country Status (2)

Country Link
EP (1) EP2935967A1 (fr)
WO (1) WO2014096111A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016124116A1 (de) * 2016-12-12 2018-06-14 Sml Verwaltungs Gmbh Vorrichtung zur Ansteuerung einer Strahlungsquelle zum Aushärten von Auskleidungsschläuchen
DE102020126455A1 (de) 2020-10-08 2022-04-14 Relineeurope Gmbh Vorrichtung zur Aushärtung und Entkeimung von Auskleidungsschläuchen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU3971895A (en) * 1994-10-31 1996-05-23 Minnesota Mining And Manufacturing Company Visible-light curable epoxy system with enhanced depth of cure
DE19961347A1 (de) * 1999-12-17 2001-06-21 S & C Polymer Silicon & Compos Photoinitiatorsystem mit Acylphosphinoxid-Initiatoren
DE10122565B4 (de) * 2001-05-10 2010-01-14 Allmann, Ludwig Verfahren zum Sanieren von Rohrleitungen
US8394464B2 (en) * 2009-03-31 2013-03-12 Schlumberger Technology Corporation Lining of wellbore tubing

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2014096111A1 *

Also Published As

Publication number Publication date
WO2014096111A1 (fr) 2014-06-26

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