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WO2002029343A1 - Echangeur de chaleur pour machine textile - Google Patents

Echangeur de chaleur pour machine textile Download PDF

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Publication number
WO2002029343A1
WO2002029343A1 PCT/DE2001/003567 DE0103567W WO0229343A1 WO 2002029343 A1 WO2002029343 A1 WO 2002029343A1 DE 0103567 W DE0103567 W DE 0103567W WO 0229343 A1 WO0229343 A1 WO 0229343A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
textile machine
duct
machine according
circulating air
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.)
Ceased
Application number
PCT/DE2001/003567
Other languages
German (de)
English (en)
Inventor
Helge Freiberg
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.)
A Monforts Textilmaschinen GmbH and Co KG
Original Assignee
A Monforts Textilmaschinen GmbH and Co KG
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 A Monforts Textilmaschinen GmbH and Co KG filed Critical A Monforts Textilmaschinen GmbH and Co KG
Priority to AU2002213802A priority Critical patent/AU2002213802A1/en
Publication of WO2002029343A1 publication Critical patent/WO2002029343A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
    • D06B23/22—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation for heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
    • F24H3/087—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
    • F28D7/082—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
    • F28D7/085—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
    • F28D7/087—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions assembled in arrays, each array being arranged in the same plane
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics

Definitions

  • the invention relates to a textile machine, preferably a tenter frame, with circulating air heating with the aid of at least one heat exchanger, which has a heat exchanger duct with duct inlet and outlet, and duct walls extending from the duct inlet to the duct outlet.
  • the convection heating is intended for convection drying and / or fixing machines for the thermal treatment of a textile fabric.
  • machines are stenter frames and hot flues (see the relevant keywords in Koch, Satlow, cones Textil-Lexikon, Deutsche Verlags-Anstalt Stuttgart, 1966).
  • Such a machine is specified in EP-0 471 162 B2.
  • This machine is intended for the thermal treatment of a wide textile fabric with a treatment gas.
  • the machine has nozzle boxes, which are arranged above and below the web at right angles to their width, have nozzle fields that extend parallel to the web surface, and are treated with treatment gas via a fan.
  • the treatment gas is fed to the suction side of the fans via a heat exchanger.
  • Each of the two fans is mounted in a pressure box upstream of the respective nozzle box, so that independent control of the pressure and in particular also the temperature of the treatment gas in the lower and upper nozzle box is possible.
  • the textile machine according to DE-PS 36 27 904 can also be equipped with a single fan which acts on a single pressure chamber common to the lower and upper nozzle boxes.
  • temperature and pressure controls can or may not be provided on the various feed lines of the treatment agent.
  • Means for heating the treatment air are almost always provided within the textile machines described.
  • the latter is mostly circulated as circulating air. Therefore, in the following, even if the fan draws in part or only fresh air, it is referred to as circulating air.
  • combustion gases intended for heating are mixed directly with the circulating air, and this is then referred to as direct heating.
  • the combustion gases generally generated by burning gas or oil contain substances, e.g. Nitrogen oxides, which can lead to yellowing or color changes in a number of synthetic fibers. This effect also occurs especially with elastomer fibers (Lycra). These stretchy fibers are twisted a lot. In order to maintain the elasticity of these fibers, they are treated with spinning oils. The spinning oils may be discolored by residues of the combustion gases.
  • indirect heating is also provided in the textile machines described.
  • heat exchangers with oil circulation or steam heating are used. These heat exchangers ensure that the treatment agent flow, its volume and also its cross-section - determined by the consumption in the nozzle system to be supplied - is relatively large and receives the same temperature everywhere in the flow cross-section. The latter is a requirement for the fact that the flow of treatment agent emanating from the nozzle boxes has the same temperature everywhere on the treated surface of the textile fabric.
  • this advantage is expensive if the user lacks heating systems for the operation of heat exchangers heated by oil circulation or steam, meaning that considerable additional investments are necessary even if only occasional applications occur, e.g. disadvantageous yellowing or discoloration when treating elastomer fibers must be avoided.
  • heat exchangers that can be operated directly by a conventional gas burner used in the textile machines with direct heating described above.
  • a gas-heated heat exchanger could be designed like a flame tube boiler. If necessary, the circulating air to be heated is passed outside via the heat exchanger's flame tubes which are heated from the inside by a heating medium or heating gas. In this way, the circulating air can be heated sufficiently, but the same temperature everywhere on the cross-section of the circulating air flow can be directly achieved with existing heat exchangers, e.g. without downstream mixer, do not guarantee.
  • a fan optimally trained for its conveying task practically does not mix the conveyed air at all. Cooler and warmer air streams or flow lines emanating from the heat exchanger therefore leave the fan - accelerated - essentially as they were drawn in.
  • the invention has for its object to provide a textile machine, preferably a tenter frame, with indirect gas heating, which without a separate mixer is able to control a temperature or provide heated air flow for treating the textile fabric.
  • a gas-heated heat exchanger is to be used, which heats an air stream drawn through it to the same temperature everywhere on its flow cross section.
  • a gas-heated heat exchanger is provided with at least two flame tubes which extend spatially parallel next to one another within the heat exchanger channel, preferably in the form of tube loops and through which the heating medium can flow. Adjacent flame tubes are traversed by the heating medium in antiparallel, that is, in opposite directions.
  • a gas-heated, co-current, counter-current and / or cross-flow heat exchanger is preferably provided with at least two flame tubes extending spatially parallel next to one another within the heat exchanger channel, in particular in the form of meandering tube loops.
  • the term "direct current" heat exchanger means that the heating medium (inside the flame tubes) flows through the heat exchanger in the same direction as the circulating air (outside the flame tubes). The heating medium inlet is thus at the entrance of the heat exchanger duct, the heating medium outlet is at the duct outlet.
  • Counterflow means that heating medium and circulating air flow through the heat exchanger in the opposite direction. In the case of "cross flow”, heating medium and circulating air flow transversely to one another.
  • the invention also includes that heating gas flows through adjacent flame tubes in antiparallel fashion, that is to say in opposite directions.
  • the invention generally also consists in arranging and designing the flame tubes such that the sum of the temperature values measured on each line parallel to the circulating air flow from flame tube to flame tube is the same everywhere in the cross section of the heat exchanger channel (perpendicular to the circulating air flow).
  • the circulating air at the heat exchanger duct outlet should be everywhere the channel cross-section (perpendicular to the direction of flow) have practically the same temperature.
  • This homogeneously tempered gas stream can be blown - accelerated with a fan - directly onto the fabric web via the associated nozzle box.
  • a mixer or the like is not required.
  • the flame tubes are preferably to be arranged within the heat exchanger channel in the form of tube loops, in particular as meandering loops.
  • the length of the pipe loop parts (the flame pipes) extending from the duct wall to the duct wall that is to say transversely to the circulating air flow direction, is large compared to the length of the pipe deflections adjacent to the opposite duct longitudinal walls.
  • the latter can also lie outside the duct volume touched by the circulating air.
  • the longer flame tube parts, which extend transversely to the direction of the circulating air flow should be substantially straight.
  • the main part of the flame tubes is transverse to the flow of the circulating air, one can speak of a cross-flow heater or of a cross-flow type heat exchanger. If the heating medium and circulating air flow in the same or opposite direction from the duct inlet to the duct outlet (or vice versa), this can be referred to as a co-current / cross-flow or counter-current / cross-flow heater.
  • the circulating air should preferably be conducted over the largest part of the flow cross section via heating pipe parts running transversely to the flow direction.
  • the aim of heating the circulating air flow cross section in the same way everywhere is set particularly successfully if an even number of flame tubes is provided, with flame tubes to be flowed through in pairs antiparallel by the heating means.
  • the even number or the arrangement in pairs is more important with a small number of flame tubes than when using many flame tubes.
  • With an increasing number of pipes the relative contribution of the individual pipe to the circulating air heating becomes smaller and smaller. Nevertheless, one can generally speak of a "heat exchanger with flame pipes through which anti-parallel flows".
  • each flame tube in the direction of flow of the heating medium decreases - usually exponentially - but if two flame tubes are arranged spatially parallel to one another and the heating medium flows through them in the opposite direction, i.e. antiparallel, the heating effect of the two tube parts is supplemented by more in practice Accuracy in such a way that air flowing between the pipes is equally heated everywhere in the duct cross-section.
  • the arrangement and design of the flame tubes according to the invention are intended first to achieve temperature compensation within the heat exchanger channel.
  • the sum of the temperature values which are measured on a straight line in the circulating air flow direction at the flame tube parts hit by the line, should be everywhere in the cross section of the heat exchanger duct ( seen transversely to the direction of the circulating air flow) - especially at the heat exchanger duct outlet - be made the same. This goal is achieved by the aforementioned solution.
  • a heat exchanger channel designated as a whole by 20, through which circulating air 21 is to flow in the direction of the arrow shown is shown.
  • the channel 20 has an entrance 22 and an exit 23 and, inter alia, opposing longitudinal walls 24 and 25.
  • the flame tube meanders 26 and 27 have inlets 28 and 29 at the inlet 22 and outlets 30 and 31 at the outlet 23.
  • Each meander consists of straight tube parts 32 and deflections 33.
  • the straight tube parts 32 essentially extend from a longitudinal wall 24 to other longitudinal wall 25, the deflections 33 are adjacent to the longitudinal walls 24 and 25.
  • the long straight pipe parts 32 make the heat exchanger shown approximately a cross-flow type device.
  • the meanders 26 and 27 are arranged in the illustrated embodiment such that the straight pipe parts 32 (and the deflections 33) lie next to one another in pairs, so that the circulating air 21 to be heated can just barely flow between two such pipes.
  • the entire volume of the heat exchanger channel is filled so tightly by flame tubes that the circulating air 21 between the tubes with optimal heat transfer and without any disturbing, i.e. the fan can flow through excessive air resistance.
  • the heating gas flowing in at the inlet 28 of the flame tube meander 26 has a temperature value 10 in the case of meander formation and it is assumed that the temperature value at each deflection 33 decreases by one unit, the temperature value of the flame tube meander 26 at the first deflection 9 is one second deflection 8, a third deflection 7, etc .; ie gas leaves (with this linear cooling) the meander 26 at its outlet 30 as shown in the drawing with the temperature value 4.
  • the flame tube meander 27 when this enters the inlet 29 with the temperature value 10, the heating gas leaves the meander 26 at the outlet 31 with the temperature value 4.
  • each air flow line element that is to say each “air strand” in the flow direction 34, leaves through the heat exchanger duct 20 at the same temperature, irrespective of the position of the duct cross section (measured perpendicular to the flow direction 34) of the air strand.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

L'invention concerne un échangeur de chaleur utilisé pour chauffer l'air environnant d'une machine textile, de préférence d'une rame élargisseuse, qui comprend un canal d'échangeur de chaleur (20) par lequel l'air environnant traverse ledit échangeur de chaleur. L'objectif de l'invention est que ce canal d'échangeur de chaleur (20) soit conçu de telle sorte qu'il chauffe un courant d'air (21) aspiré le traversant de façon uniforme sur toute la section de l'écoulement. Selon l'invention, un échangeur de chaleur chauffé à l'aide de gaz est pourvu d'au moins deux tubes à flammes (26, 27) qui s'étendent spatialement parallèlement l'un par rapport à l'autre, à l'intérieur du canal d'échangeur de chaleur (20). Des tubes à flammes voisins sont traversés, de façon antiparallèle, par l'agent de chauffage.
PCT/DE2001/003567 2000-09-27 2001-09-14 Echangeur de chaleur pour machine textile Ceased WO2002029343A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002213802A AU2002213802A1 (en) 2000-09-27 2001-09-14 Heat exchanger for a textile machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10047834.4 2000-09-27
DE10047834A DE10047834A1 (de) 2000-09-27 2000-09-27 Textilmaschine

Publications (1)

Publication Number Publication Date
WO2002029343A1 true WO2002029343A1 (fr) 2002-04-11

Family

ID=7657816

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/003567 Ceased WO2002029343A1 (fr) 2000-09-27 2001-09-14 Echangeur de chaleur pour machine textile

Country Status (3)

Country Link
AU (1) AU2002213802A1 (fr)
DE (1) DE10047834A1 (fr)
WO (1) WO2002029343A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2907884A1 (fr) * 2006-10-25 2008-05-02 Giat Ind Sa Procede de traitement thermique d'un materiau, notamment du bois, et unite de traitement thermique mettant en oeuvre un tel procede
CN100501293C (zh) * 2007-07-30 2009-06-17 立信门富士纺织机械（深圳）有限公司 一种废气热回收装置及带有废气热回收装置的拉幅定形机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10233754B4 (de) * 2002-07-25 2005-11-24 A. Monforts Textilmaschinen Gmbh & Co.Kg Textilmaschine mit Umluftheizung durch gasbeheizte Wärmetauscher

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR331076A (fr) * 1903-04-09 1903-08-31 Valentin Lapp Dispositif pour le chauffage de l'air
DE365846C (de) * 1921-11-19 1922-12-22 Albert Methfessel Kuehlvorrichtung fuer Kraftfahrzeuge, Flugzeuge u. dgl.
GB315266A (en) * 1928-07-10 1930-09-26 Anciens Ets Liotard Tubular radiator
US2286665A (en) * 1940-08-14 1942-06-16 Blair Clifford Hot air furnace
DE927974C (de) 1939-05-07 1955-05-20 Aeg Schaltungsanordnung zur UEbertragung von Messwerten ueber Fernsprechuebertragungsanlagen mit Waehlerbetrieb
DE2754438A1 (de) 1976-12-10 1978-06-15 Pickering Edgar Ltd Trockenapparat zum durchlauftrocknen einer bahn aus faeden o.dgl.
EP0471162B1 (fr) 1990-08-17 1993-07-14 A. Monforts GmbH & Co Dispositif de séchage et/ou de fixation à convection
US5351416A (en) * 1991-10-31 1994-10-04 Marshall And Williams Company Clean air oven with heat recovery and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7307613U (de) * 1973-10-04 Brueckner Trockentechnik Kg Maschine zum Trocknen und Fixieren von kontinuierlich bewegten Warenbahnen mittels eines Umluftstromes
DE8304087U1 (de) * 1983-02-14 1983-06-30 Brückner Trockentechnik GmbH & Co KG, 7250 Leonberg Vorrichtung zur umluftbehandlung von fortlaufend transportierten textilen warenbahnen, insbesondere spannrahmentrockner
DE3605100A1 (de) * 1986-02-18 1987-08-27 Monforts Gmbh & Co A Textilmaschine mit kontinuierlicher konvektiver waermebehandlung
DE19844691A1 (de) * 1998-09-29 2000-03-30 Brueckner Apparatebau Gmbh Vorrichtung zur Wärmebehandlung einer breitgeführten Warenbahn

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR331076A (fr) * 1903-04-09 1903-08-31 Valentin Lapp Dispositif pour le chauffage de l'air
DE365846C (de) * 1921-11-19 1922-12-22 Albert Methfessel Kuehlvorrichtung fuer Kraftfahrzeuge, Flugzeuge u. dgl.
GB315266A (en) * 1928-07-10 1930-09-26 Anciens Ets Liotard Tubular radiator
DE927974C (de) 1939-05-07 1955-05-20 Aeg Schaltungsanordnung zur UEbertragung von Messwerten ueber Fernsprechuebertragungsanlagen mit Waehlerbetrieb
US2286665A (en) * 1940-08-14 1942-06-16 Blair Clifford Hot air furnace
DE2754438A1 (de) 1976-12-10 1978-06-15 Pickering Edgar Ltd Trockenapparat zum durchlauftrocknen einer bahn aus faeden o.dgl.
EP0471162B1 (fr) 1990-08-17 1993-07-14 A. Monforts GmbH & Co Dispositif de séchage et/ou de fixation à convection
US5351416A (en) * 1991-10-31 1994-10-04 Marshall And Williams Company Clean air oven with heat recovery and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2907884A1 (fr) * 2006-10-25 2008-05-02 Giat Ind Sa Procede de traitement thermique d'un materiau, notamment du bois, et unite de traitement thermique mettant en oeuvre un tel procede
WO2008056044A3 (fr) * 2006-10-25 2008-11-13 Nexter Munitions Procede de traitement thermique d'un materiau et unite de traitement thermique mettant en œuvre un tel procede
US20100043251A1 (en) * 2006-10-25 2010-02-25 Nexter Munitions Heat treatment process for a material and heat treatment unit implementing such process
CN100501293C (zh) * 2007-07-30 2009-06-17 立信门富士纺织机械（深圳）有限公司 一种废气热回收装置及带有废气热回收装置的拉幅定形机

Also Published As

Publication number Publication date
DE10047834A1 (de) 2002-04-18
AU2002213802A1 (en) 2002-04-15

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