EP2388519A1 - Système de développement d'un domaine de travail protégé à l'intérieur d'un espace de travail limité par un mur - Google Patents

Système de développement d'un domaine de travail protégé à l'intérieur d'un espace de travail limité par un mur Download PDF

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Publication number
EP2388519A1
EP2388519A1 EP11163182A EP11163182A EP2388519A1 EP 2388519 A1 EP2388519 A1 EP 2388519A1 EP 11163182 A EP11163182 A EP 11163182A EP 11163182 A EP11163182 A EP 11163182A EP 2388519 A1 EP2388519 A1 EP 2388519A1
Authority
EP
European Patent Office
Prior art keywords
cover
wall
collar
lifting
working space
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.)
Granted
Application number
EP11163182A
Other languages
German (de)
English (en)
Other versions
EP2388519B1 (fr
Inventor
Axel Pauly
Thomas Furth
Marc Blomeier
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.)
Mitsubishi Power Europe GmbH
Original Assignee
Hitachi Power Europe 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 Hitachi Power Europe GmbH filed Critical Hitachi Power Europe GmbH
Priority to PL11163182T priority Critical patent/PL2388519T3/pl
Priority to MEP-2013-76A priority patent/ME01543B/me
Priority to SI201130041T priority patent/SI2388519T1/sl
Publication of EP2388519A1 publication Critical patent/EP2388519A1/fr
Application granted granted Critical
Publication of EP2388519B1 publication Critical patent/EP2388519B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/24—Supporting, suspending, or setting arrangements, e.g. heat shielding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/40—Arrangements of partition walls in flues of steam boilers, e.g. built-up from baffles

Definitions

  • the invention relates to a system for forming a protected working area within a limited by a wall working space, comprising a folded or rolled into the working space einbringbares, there positionable in a position of use and unfoldable cover and at least one insertable through a through hole in the wall in the working space and fastened to the covering element stop points attachable lifting and / or tensioning cable, wherein in the use position, the cover completely spans the cross-sectional area of the working space and forms a protected working area under itself. Furthermore, the invention relates to a use of such a system.
  • Such a system is for example from the DE 10 2005 053 048 B4 known which can be used within a combustion chamber of a fossil-fired steam generator.
  • Steam generators fueled by fossil fuels typically have a combustor chamber into which the burners open, with the help of which the fossil fuels are burned.
  • combustion chambers have a rectangular or square cross-section.
  • the walls of the combustion chamber are made of membrane wall pipes, through which a heat transfer medium, i. Water or steam or a water / steam mixture is passed, which is then fed, for example, steam turbines.
  • a heat transfer medium i. Water or steam or a water / steam mixture
  • the wall pipes and other heating surfaces in the upper region of the combustion chamber are arranged, which cover the cross-sectional area of the combustion chamber substantially horizontally aligned. These are so-called bundle heating surfaces.
  • an ash discharge funnel with a discharge opening for the ash is arranged below the burner level.
  • the invention is therefore based on the object to provide a system for the formation of a protected work area within a limited by a wall working space, by means of which the safety of the people working underneath can be improved.
  • the inventive system for forming a protected working area within a limited by a wall working space is characterized in that the cover along the edge regions of the base of the cover has a circumferential collar, the collar rests in the use position directly to the wall of the working space.
  • the cover element according to the invention has a flat base, which spans mainly the cross-sectional area of the working space.
  • the collar is circumferentially arranged along the edge regions of the base surface, which in the use position, at least in the prestressed state of the cover element, adjoin the wall of the working chamber, so that preferably the entire base surface is bordered by the collar, so to speak.
  • the collar is preferably dimensioned such that it protrudes beyond the base surface of the cover over and can rest at any time in the use position of the cover on the wall of the working space.
  • the collar is preferably designed such that it can compensate for all movements of the cover in the position of use, without itself getting under tension.
  • the collar in a tensioned state of the cover element, is formed at an angle to the base surface of the cover element, preferably at an angle 0 ° ⁇ ⁇ 90 °, preferably 20 ° ⁇ ⁇ ⁇ 60 °. Due to the angled formation of the collar to the base of the cover, the collar forms the preferably substantially planar base in a tensioned state of the cover, ie when a load acts on the cover, a bevel, whereby a secure contact of the collar on the Wall of the working space even in the case of maximum deflection or load on the cover, for example, when hitting a Abbrandbrockens on the cover can be guaranteed.
  • the angled arrangement of the collar that in the event that For example, a Abbrandbrocken or the like in the region of the collar impinges on the cover, this can roll from the collar in the direction of the center of the cover and thus on the base of the cover, where the burden of Abbrandbrocken or the like can be better compensated and the load
  • the edge regions of the cover can be reduced thereby.
  • the collar is preferably angled at the base of the cover so that depending on the load of the cover the angle between the collar and base can change regardless of the amount of stress on the cover ensure a secure contact of the collar on the wall of the working space to be able to.
  • the transition between the collar and the base is thereby preferably made flexible in a narrow range by the collar is connected, for example via a seam to the base.
  • the collar in the use position by means of a substantially inflexible fastening means on the wall of the working space can be fastened / attached.
  • substantially inflexible means that the fastening means has no or only a slight elasticity.
  • the substantially inflexible fastening means which may be formed, for example, as a rod, profile or rope, is preferably arranged on a free end region of the collar, which is opposite to the end region of the collar, which is attached directly to the base of the cover, on the cover , This makes it possible to ensure that the collar with its free end region, where the essentially inflexible fastening means is provided, rests securely along the wall.
  • a pocket may be formed within which the substantially inflexible fastening means is guided or within which a profile adapted to the peripheral surface of the cover element or of the collar is arranged is at which the substantially inflexible fastener for positioning the collar in the position of use fastened / attached.
  • the provided in the bag profile can then serve in addition to the stabilization of the collar itself.
  • the substantially inflexible fastener formed together with the lifting and / or tensioning cable in one of the Wall of the working space provided guide means are guided.
  • the guide means may be formed in the form of a profile or a tube, in which the substantially inflexible fastening means is preferably guided parallel to the lifting and / or tensioning cable.
  • a further preferred embodiment of the invention provides that the lifting and / or tensioning cable can be fastened to the base surface of the cover, wherein the lifting and / or tensioning cable is designed for dynamic stress.
  • the lifting and / or tensioning cable is thus preferably not attached to the collar of the cover, but on the base of the cover, in particular in the position of use.
  • the base and the collar of the cover can be separately attached to the wall of the working space, so that the cover can be attached to the wall of the working space very safe.
  • the design for dynamic stress means preferably that the lifting and / or tensioning cable for a maximum load, d. H. large impulse forces and a high weight, is designed, but can cushion the impact in a collision of a Abbrandbrocken or the like on the cover.
  • the lifting and / or tensioning cable is preferably at least partially elastic and / or has a tension spring and / or a shock brake on the lifting and / or Tensioning a tension spring and / or an impact brake, so these are preferably directly in the region of a stop point, where the lifting and / or tensioning cable is attached to the cover or the base of the cover provided on the lifting and / or tensioning cable, so they are the link between the Represent stop point and the lifting and / or tensioning cable.
  • a further preferred embodiment of the invention provides a measuring device for determining dynamic and / or static stresses.
  • a measuring device is preferably arranged on one or more lifting and / or tensioning cables, wherein the measuring device preferably directly in the region of a stop point, wherein the lifting and / or tensioning cable is attached to the cover or the base of the cover, on the Lifting and / or tensioning cable is provided.
  • the measuring device can thereby represent the connection between the respective attachment point and the lifting and / or tensioning cable and / or between the lifting and / or tensioning cable and the tension spring and / or the impact brake.
  • the cover is formed of a fabric material.
  • both the base and the collar of a fabric material is formed. Due to the formation of the cover of a fabric material, the cover has a relatively low weight and is thus easily introduced through an opening in the working space.
  • a manhole may be provided, so that the cover with the help of a person in the working space can be introduced and placed there or on appropriate devices can be attached.
  • the Fabric material may be formed, for example, aromatic polyamides (Kevlar ®), polyethylene (Dyneema ®), polyesters, rayon, polypropylene, or wire mesh.
  • the fabric material has a coating.
  • a better strength and increased insensitivity of the fabric material, in particular opposite Abbrandknappen or the like impinging on the cover member can be achieved, which have a very rough and uneven surface and thereby damage uncoated fibers of the fabric material, resulting in an undesirable cracking of the cover can lead.
  • the coating in particular the abrasion resistance of the surface of the fabric material can be improved.
  • the coating is in this case preferably made of a polyurethane and / or a chloroprene rubber (Neoprene ®) is formed.
  • a particularly high abrasion resistance of the fabric material and thus of the cover can be achieved.
  • the coating is applied over the surface of the cover in different thicknesses on the fabric material.
  • the coating may be applied to the collar with a different thickness than on the base surface of the cover.
  • different coating thicknesses can be applied to the fabric material, so that areas which are exposed to particularly high loads, a coating of greater thickness than areas which are exposed to lower loads.
  • the fabric material is formed from a plurality of fabric webs, wherein two adjoining fabric webs are formed at the overlapping edge regions each at least once folded and in the region of overlapping, folded edge areas together sewn.
  • the seam itself is preferably carried out with a 6-hole cross-stitch in order to achieve a particularly stable seam and thus a particularly stable joint of two adjacent fabric webs.
  • a stabilization tape is sewn in in the region of the overlapping edge regions of two fabric webs.
  • the stabilizing band may be formed, for example in the form of a webbing. This makes it possible that four layers of fabric material and a layer of stabilizing tape are sewn together at the overlapping edge regions of two fabric webs. As a result, a seam strength can be achieved, which corresponds to the strength of the fabric material itself.
  • a further advantageous embodiment of the invention provides that the cover in the region of its base has reinforcing elements, wherein a reinforcing element in each case connects a first attachment point with a stop point opposite the first attachment point.
  • a reinforcing element in each case connects a first attachment point with a stop point opposite the first attachment point.
  • the reinforcing elements are provided along the stress lines within the cover, which are preferably formed between two opposing abutment points. This allows the cover by means of the reinforcing elements, which are preferably designed as a reinforcing strip, in particular as a webbing, at the voltage lines between the stop points be strengthened.
  • the forces acting on the cover forces can be passed directly through the reinforcing elements in the stop points, whereby the cover and thus the fabric material of the cover can be relieved.
  • the reinforcing elements are preferably at least partially incorporated into the fabric material of the cover or connected thereto at significant locations.
  • the reinforcing elements are preferably at least partially sewn to the fabric material of the cover and ends in each of the attachment points.
  • the reinforcing elements can also be glued into the fabric material of the cover.
  • the reinforcing elements are preferably provided such that they form a reinforcing mesh on the underside of the cover element pointing in the direction of the protected working area in the use position of the cover element.
  • a reinforcing mesh By forming a reinforcing mesh, the stability of the cover can be further increased, wherein the force acting on the cover energy in an impact, such as a Abbrandbrockens on the cover, can be reduced because the impact no longer needs to be borne by the entire cover, but mainly in a region of the cover element which is formed by cross-over reinforcing elements in the form of a box whose surface is substantially smaller than the total surface of the cover, whereby the vibrations caused by the impact can be significantly reduced in the cover, which in turn reduces the life of the Covering can be significantly increased.
  • the invention furthermore relates to the use of a system designed and developed as described above for forming a protected working area within a working space of a fossil-fired, in particular lignite-fired, or waste-fired steam generator, a waste incineration plant, a top gas power plant, a chimney, a silo and / or a bunker.
  • a fossil-fired in particular lignite-fired, or waste-fired steam generator, a waste incineration plant, a top gas power plant, a chimney, a silo and / or a bunker.
  • Fig. 1 shows a schematic sectional view of a generally designated 10 combustion chamber in the embodiment as a fossil-fueled or garbage-fired steam generator in a partial representation comprising the combustion chamber or combustion chamber 12 without representation of the burner, in this embodiment, the combustion chamber 12 of the steam generator is the working space, within which a system for forming a protected work area is provided.
  • the steam generator 10 is preferably a lignite-fired steam boiler, wherein the term "fossil-fired" or "waste-fired” includes all fossil fuels, ie, for example, hard coal and oil. Also not shown are the on the inside of the combustion chamber walls vertically extending heating pipes or Schurohrspiralen.
  • an ash hopper 14 is formed with a central ash discharge opening 16.
  • the cross-sectional area of the steam generator 10 and the combustion chamber 12 overlapping heating surfaces so-called Bündelterrorism vom 18 are arranged.
  • the free cross-sectional area of the combustion chamber 12 is rectangular, in particular substantially square, where a side length 20 is about 21 m.
  • the combustion chamber 12 is circumferentially enclosed by a wall 22.
  • the combustion chamber 12 at the in Fig. 1 shown embodiment with openings 26a, 26b in the wall 22, through which the interior of the combustion chamber 12 is accessible from the outside.
  • Both an opening 26a and an opening 26b are shown, it being sufficient if only one of the two openings 26a or 26b is present.
  • a folded or collapsed or rolled-up cover 24 whose state is schematically represented by the shape of an ellipse in the Fig. 1 is indicated, inserted from the outside into the interior of the combustion chamber 12 and the interior of the ash hopper 14.
  • the folded or rolled-up covering element 24 it is also possible for the folded or rolled-up covering element 24 to be introduced into the combustion chamber 12 via an opening, not shown here, in the afterburning grid of the steam generator 10.
  • lifting and / or tensioning cables 30a, 30b are attached to the cover.
  • the lifting and / or tensioning cables 30a, 30b have previously been introduced from the outside into the interior of the combustion chamber 12 through passage openings 32 formed in the upper part of the combustion chamber 12 in the region of the bundle heating surface 18 in the wall 7 of the combustion chamber 12. These lifting and / or tensioning cables are fastened to the cover element 24.
  • the cover 24 is, after it has been fully inserted into the combustion chamber 12, unfolded, rolled or unfolded and with the help of the lifting and / or tensioning cables 30a, 30b, which are secured to the cover 24 in the use position 34 of the unfolded cover 24 brought. This is done by pulling on the lifting and / or tensioning cables in the direction of the arrows 36 from the outside.
  • the use position 34 is located at the level of the through-openings 32. At this height, the cover element 24 completely spans the cross-sectional area of the combustion chamber 12, so that below the cover element 24 in its use position 34 a protected area is created Working area forms in which no falling from the bundle heating surfaces 18 erosion, slag or ashes are falling into / can. Such erosion, ash or slag drifts are collected by the cover element 24 and remain on its upper side pointing in the direction of the bundle heating surface 18.
  • Fig. 2 shows a partial section of a cover according to the invention 24 in its use position 34.
  • the cover 24 has a flat in the use position shown 34 base 38 and a collar 40, wherein the collar 40 along the edge regions of the base 38 is formed circumferentially and in the position of use 34 is applied directly to the wall 22 of the working space or the combustion chamber 12 shown here.
  • the collar 40 is shown in the use position 34 of the cover 24 shown here in a tensioned state, in which the collar 40 is formed at an angle to the base 38 of the cover 24.
  • the collar 40 by means of a substantially inflexible fastening means 42, in this case a rope attached to the wall 22.
  • the fastening means 42 is fastened to a profile 48 arranged in a pocket 46 formed on an end region 44 of the collar 40, the pocket 46 and the profile 48 preferably being formed over the entire length of the collar 40 at the end region 44.
  • the cover 24 is secured in the use position 34 via the lifting and or tensioning cables 30a, 30b on the wall 22 of the combustion chamber 12, which are arranged on the base 38 of the cover 24.
  • the lifting and / or tensioning cables 30a, 34b are at least partially elastic.
  • the lifting and / or tensioning cables 30a, 30b are guided together with the fastening means 42 in each case in a guide means 50 provided on the wall 22.
  • the cover member 24 is formed of a fabric material provided with a coating.
  • the cover member 24 is formed of a plurality of fabric webs 52a, 52b, which extend substantially parallel to each other. Two adjoining fabric webs 52a, 52b are there, as in FIG Fig. 3 can be seen, at the overlapping edge regions 54a, 54b each formed once turned over and sewn together in the region of overlapping, folded edge portions 54a, 54b.
  • a stabilizing element 56 in the form of a webbing is sewn in.
  • the cover 24, as in Fig. 4 is shown, in the region of its base 38 reinforcing elements 58, wherein in each case a reinforcing element 58 connects a first stop point 60a, to which a lifting and / or tensioning cable 30a, 30b can be fastened, with a stop point 60b opposite the first stop point 60a.
  • the reinforcing elements 58 are provided in cross-over the entire surface of the base 38 of the cover 24, so that they form a kind of reinforcing mesh on the underside of the cover 24 in the use position 34 of the cover 24 in the direction of the protected working area.
  • the reinforcing elements 58 are in the form of reinforcing bands, in particular in the form of straps, which are at least partially incorporated in the fabric material of the cover 24, in particular sewn.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Woven Fabrics (AREA)
  • Movable Scaffolding (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Tents Or Canopies (AREA)
  • Solid-Fuel Combustion (AREA)
  • Emergency Lowering Means (AREA)
EP11163182A 2010-05-17 2011-04-20 Système de développement d'un domaine de travail protégé à l'intérieur d'un espace de travail limité par un mur Active EP2388519B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL11163182T PL2388519T3 (pl) 2010-05-17 2011-04-20 System do kształtowania chronionego obszaru pracy wewnątrz przestrzeni roboczej ograniczonej ścianką
MEP-2013-76A ME01543B (me) 2010-05-17 2011-04-20 Sistem za formiranje zaštićene radne oblasti unutar radnog prostora odvojenog zidom
SI201130041T SI2388519T1 (sl) 2010-05-17 2011-04-20 Sistem za tvorjenje zaščitenega delovnega območja znotraj delovnega prostora, ločenega s steno

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010020713 2010-05-17
DE102010037628A DE102010037628A1 (de) 2010-05-17 2010-09-17 System zur Ausbildung eines geschützten Arbeitsbereiches innerhalb eines durch eine Wandung begrenzten Arbeitsraumes

Publications (2)

Publication Number Publication Date
EP2388519A1 true EP2388519A1 (fr) 2011-11-23
EP2388519B1 EP2388519B1 (fr) 2013-04-03

Family

ID=44462046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11163182A Active EP2388519B1 (fr) 2010-05-17 2011-04-20 Système de développement d'un domaine de travail protégé à l'intérieur d'un espace de travail limité par un mur

Country Status (11)

Country Link
EP (1) EP2388519B1 (fr)
DE (1) DE102010037628A1 (fr)
DK (1) DK2388519T5 (fr)
ES (1) ES2418136T3 (fr)
HR (1) HRP20130598T1 (fr)
ME (1) ME01543B (fr)
PL (1) PL2388519T3 (fr)
PT (1) PT2388519E (fr)
RS (1) RS52871B (fr)
SI (1) SI2388519T1 (fr)
ZA (1) ZA201103569B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012001618A1 (de) * 2012-01-30 2013-08-01 Babcock Borsig Steinmüller Gmbh Dampferzeugeranlage mit verschließbarem Kesseltrichter
CN108320823A (zh) * 2018-03-20 2018-07-24 阳江核电有限公司 核电凝汽器内防落物平台

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018007218A1 (de) * 2018-09-12 2020-03-12 Balcke-Dürr GmbH Dampferzeugerkessel, Kraftwerk oder Müllverbrennungsanlage und Verfahren zum Absichern von Wartungsarbeiten an einem Dampferzeugerkessel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB920108A (en) * 1960-12-16 1963-03-06 Babcock & Wilcox Ltd Improvements in or relating to furnace chambers
DE1167476B (de) 1963-07-31 1964-04-09 Ver Kesselwerke Ag Arbeitsbuehnenaufbau in Feuerungs- und Strahlungsraeumen von Dampferzeugern und Industrieoefen
DD286997A5 (de) * 1989-08-15 1991-02-14 Ve Kombinat Kernkraftwerke "Bruno Leuschner",De Vorrichtung zum auffangen von aktivierten bearbeitungsrueckstaenden im reaktordruckgefaess
DE102005053048A1 (de) * 2005-11-04 2007-05-10 Hitachi Power Europe Gmbh Sicherheitsabschottung einer Brennkammer eines Dampferzeugers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB920108A (en) * 1960-12-16 1963-03-06 Babcock & Wilcox Ltd Improvements in or relating to furnace chambers
DE1167476B (de) 1963-07-31 1964-04-09 Ver Kesselwerke Ag Arbeitsbuehnenaufbau in Feuerungs- und Strahlungsraeumen von Dampferzeugern und Industrieoefen
DD286997A5 (de) * 1989-08-15 1991-02-14 Ve Kombinat Kernkraftwerke "Bruno Leuschner",De Vorrichtung zum auffangen von aktivierten bearbeitungsrueckstaenden im reaktordruckgefaess
DE102005053048A1 (de) * 2005-11-04 2007-05-10 Hitachi Power Europe Gmbh Sicherheitsabschottung einer Brennkammer eines Dampferzeugers
DE102005053048B4 (de) 2005-11-04 2007-10-04 Hitachi Power Europe Gmbh Sicherheitsabschottung einer Brennkammer eines Dampferzeugers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012001618A1 (de) * 2012-01-30 2013-08-01 Babcock Borsig Steinmüller Gmbh Dampferzeugeranlage mit verschließbarem Kesseltrichter
CN108320823A (zh) * 2018-03-20 2018-07-24 阳江核电有限公司 核电凝汽器内防落物平台
CN108320823B (zh) * 2018-03-20 2024-05-07 阳江核电有限公司 核电凝汽器内防落物平台

Also Published As

Publication number Publication date
DK2388519T3 (da) 2013-07-01
DE102010037628A1 (de) 2011-11-17
PL2388519T3 (pl) 2013-12-31
ME01543B (me) 2014-04-20
RS52871B (en) 2013-12-31
HRP20130598T1 (en) 2013-07-31
ES2418136T3 (es) 2013-08-12
EP2388519B1 (fr) 2013-04-03
DK2388519T5 (da) 2013-08-12
PT2388519E (pt) 2013-06-18
SI2388519T1 (sl) 2013-08-30
ZA201103569B (en) 2012-01-25

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