EP2295909A1 - Procédé d'utilisation efficace des flux d'air chaud dans un système de séchage, notamment pour un atelier de peinture de véhicules - Google Patents

Procédé d'utilisation efficace des flux d'air chaud dans un système de séchage, notamment pour un atelier de peinture de véhicules Download PDF

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Publication number
EP2295909A1
EP2295909A1 EP20090011579 EP09011579A EP2295909A1 EP 2295909 A1 EP2295909 A1 EP 2295909A1 EP 20090011579 EP20090011579 EP 20090011579 EP 09011579 A EP09011579 A EP 09011579A EP 2295909 A1 EP2295909 A1 EP 2295909A1
Authority
EP
European Patent Office
Prior art keywords
dryer
air
fresh air
clean gas
heated
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
EP20090011579
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German (de)
English (en)
Other versions
EP2295909B1 (fr
Inventor
Fokko Dipl.-Ing. Crone
Norbert Heckmann
Otto Prof. Dr.-Ing. Carlowitz
Jürgen Dipl.-Ing. Pelz
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.)
Crone Fokko
Reschka Klaus
Original Assignee
Crone Fokko
Reschka Klaus
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.)
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Publication date
Application filed by Crone Fokko, Reschka Klaus filed Critical Crone Fokko
Priority to EP09011579.1A priority Critical patent/EP2295909B1/fr
Publication of EP2295909A1 publication Critical patent/EP2295909A1/fr
Application granted granted Critical
Publication of EP2295909B1 publication Critical patent/EP2295909B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/02—Heating arrangements using combustion heating
    • F26B23/022—Heating arrangements using combustion heating incinerating volatiles in the dryer exhaust gases, the produced hot gases being wholly, partly or not recycled into the drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
    • F26B2210/12—Vehicle bodies, e.g. after being painted

Definitions

  • the invention relates to a method for the efficient use of the hot air streams in a dryer system for dry goods, in particular for a vehicle painting, in which the exhaust air from the dryer is heated in a thermal afterburner and led as clean gas by Um Kunststoffrekuperatoren and at least one Frischluftrekuperator is heated in which the recirculated air removed from the dryer and is returned to the dryer and the fresh air is heated and fed into the dryer.
  • the freshly painted dry goods such as karts
  • a support frame in the dryer, wherein the organic solvents are in the fresh paint of the dry goods
  • the karrossen After heating in the heating zone of the dryer, for example, the karrossen enter the holding zone of the dryer at about 140 - 180 ° C. Then the karrossen leave the dryer.
  • gaseous organic substances are removed by suction and fed as exhaust air (raw gas) a thermal afterburner (TNV) for the oxidative conversion of organic substances in the non-toxic compounds carbon dioxide and water vapor.
  • TSV thermal afterburner
  • the exhaust air Before entering the thermal post-combustion plant, the exhaust air is preheated in an exhaust air recuperator.
  • the clean gas from the post-combustion system initially cools down in the exhaust air recuperator and is then used to heat the dryer. This is done in such a way that the clean gas is passed through Umgasrekuperatoren, which heat the recirculated air removed from the dryer, whereupon the circulating air is returned to the dryer. Finally, the clean gas is passed through a fresh air recuperator, in which the fresh air to be supplied to the dryer is heated.
  • the invention has for its object to provide a more efficient method for energy saving in drying systems.
  • the dryer 1 has an inlet lock 2, a heating zone 3, a holding zone 4 and an outlet lock 5.
  • the arrow 6 symbolizes the introduction of the dry goods, for example bodies, which are located on SKIDs.
  • the arrow 7 symbolizes the entry of the solvents, which are introduced with the color coatings of the dried goods in the dryer.
  • the arrow 8 symbolizes the dry goods leaving the dryer and SKIDs.
  • the thermal afterburner TNV is designated 9.
  • 10 and 12 are circulating air recuperators. 13 is an exhaust air recuperator, 14 is a catalyst stage, and 15 is a fresh air recuperator. With 21 an exhaust chimney is called.
  • the arrows 22 indicate the supply of fresh air from the environment.
  • the exhaust ducts are at 18 and the circulating air lines are designated 17.
  • the the dryer 1 via the exhaust ducts 18 extracted exhaust gas (crude gas) is fed via a fan unit 19 and the Ab povertyrekuperator 13 of the TNV 9 and there subjected to the oxidation process.
  • the cleaned by the conversion exhaust air leaves the TNV as clean gas in the clean gas line 20.
  • the clean gas is first passed through the Ab povertyrekuperator 13, then optionally through a catalyst stage 14, the Umluftrekuperator 10 and the Umbuchrekuperator 12 and finally flows through the Frischluftrekuperator 15, whereupon it over the exhaust chimney 21 exits into the atmosphere.
  • the heating zone 3 and the holding zone 4 of the dryer 1 is removed via recirculating air ducts 17a circulating air in the Um Kunststoffrekuperatoren 10 and 12 is heated and recycled via recirculating air lines 17b in the heating zone and in the holding zone.
  • the inlet sluice 2 operated with negative pressure and the outlet sluice 5 operated with negative pressure are supplied with fresh air from the immediate vicinity (arrows 22).
  • Fresh air taken from the atmosphere and / or the installation space is supplied to the fresh air recuperator 15 via a fresh air line 23.
  • the heated fresh air is introduced via a fan unit 24 and fresh air partial lines 23a in the recirculating air ducts 17a.
  • a fresh air-fresh air mixture is passed through the Umbuchrekuperatoren 10 and 12, which is thus heated and returned via the circulating air lines 17b in the heating zone 3 and in the holding zone 4.
  • the temperature of the dryer 1 is regulated via a two flap valve system associated with each recirculating air recuperator 10 and 12 in the clean gas line 20 and in a bypass 27 bypassing the circulating air recuperator. Is requested by the dryer 1 warmer circulating air, so opens a first flap 25 in the clean gas line 20 the path of the clean gas Um Kunststoffrekuperator 10 and at the same time closes a second flap 26 the bypass 27, so that the clean gas flows through the Um Kunststoffrekuperator to there heat energy to the Circulating air. If the dryer 1 requires less heat, the system works in reverse order. The flap 25 in the clean gas line closes and the flap 26 in the bypass 27 opens, so that the clean gas is led around the Umbuchrekuperator 10 via the bypass 27. In the same way, the Umluftrekuperator 12 is moved.
  • the combustion chamber temperature of the TNV 9 is set to a constant temperature value, so that the clean gas temperature in the exit from the TNV and after flowing through the Abluftrekuperators 13 also has a constant temperature.
  • the required energy requirement of the dryer 1 is automatically regulated via the exit temperature of the clean gas behind the fresh air recuperator 15 at the temperature tap 29 in conjunction with the clean gas volume flow.
  • the clean gas temperature at the tap 29 is constantly set to, for example, 80 ° C.
  • a control unit 30 measures the clean gas temperature at the tap 29 and gives a manipulated variable to the frequency converter of the fresh air fan unit 24 and the exhaust fan unit 19.
  • the TNV 9 then also works with maximum power due to the maximum amount of air. If the individual zones of the dryer finally approach the setpoint temperature of the dryer, the flaps 25 close in the clean gas line and open the flaps 26 in the bypasses 27 at the recirculating air recuperators and the clean gas temperature drops to the maximum setpoint temperature of the clean gas. The controller 30 then lowers the speed of the fresh air and exhaust fan units. The heat output of the TNV 9 drops as the exhaust air volume flow decreases.
  • the control unit 30 monitors the clean gas temperature at each Umluftrekuperator 10, 12 behind the flaps 26 at points 34 (T1) in the bypasses 27 and in each subsequent strand of the clean gas line 20 at points 35 (T2 ). If the temperature level behind the flaps 26 (T1) approaches that in the respectively adjacent strand of the clean gas line 20 (T2) to a value to be determined (T1 must always be greater than T2), the reduction of the amounts of exhaust air is stopped. The best possible waste heat utilization is then achieved.
  • the self-regulating paint drying system recognizes each of these required conditions and automatically adjusts automatically to each of these dryer operating states.
  • the volume flow balance (exhaust air / fresh air) via a determined characteristic of the frequency converter of the fan units 19, 24 as a function of different volume flows or via the volume flow measuring points 31 and 32 in the exhaust duct 18 before the exhaust recuperator 13 and in the fresh air line 23.
  • the relative humidity of the clean gas behind the fresh air recuperator 15 measured at the measuring point 33 and displayed. If condensation forms in the exhaust chimney 21, the chimney temperature must be raised by the operator.
  • the required air volume balance in the dryer is set once fixed and locked via fixed throttle valves 28 on the exhaust air lines 18 and the individual fresh air supply lines 23a before entering the Um Kunststoffrekuperatoren during commissioning.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Drying Of Solid Materials (AREA)
EP09011579.1A 2009-09-10 2009-09-10 Procédé d'utilisation efficace des flux d'air chaud dans un système de séchage, notamment pour un atelier de peinture de véhicules Not-in-force EP2295909B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09011579.1A EP2295909B1 (fr) 2009-09-10 2009-09-10 Procédé d'utilisation efficace des flux d'air chaud dans un système de séchage, notamment pour un atelier de peinture de véhicules

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09011579.1A EP2295909B1 (fr) 2009-09-10 2009-09-10 Procédé d'utilisation efficace des flux d'air chaud dans un système de séchage, notamment pour un atelier de peinture de véhicules

Publications (2)

Publication Number Publication Date
EP2295909A1 true EP2295909A1 (fr) 2011-03-16
EP2295909B1 EP2295909B1 (fr) 2016-02-24

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EP09011579.1A Not-in-force EP2295909B1 (fr) 2009-09-10 2009-09-10 Procédé d'utilisation efficace des flux d'air chaud dans un système de séchage, notamment pour un atelier de peinture de véhicules

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013075793A1 (fr) * 2011-11-25 2013-05-30 Eisenmann Ag Dispositif de mise en température d'objets
EP2633922A1 (fr) * 2012-03-01 2013-09-04 Eisenmann AG Dispositif d'utilisation thermique d'un fluide primaire et installation de traitement d'objets avec celui-ci
EP2924381A1 (fr) * 2014-03-28 2015-09-30 Sabine Schindler Alimentation en air frais
EP2924380A1 (fr) * 2014-03-28 2015-09-30 Sabine Schindler Brûleur supplémentaire
EP2844937B1 (fr) 2012-05-02 2018-03-21 Dürr Systems AG Dispositif pourvu d'une chambre de traitement pour pièces d'oeuvre
DE102017105094A1 (de) 2017-03-10 2018-09-13 Eisenmann Se Temperiervorrichtung für oberflächenbehandelte Gegenstände wie Fahrzeugteile
WO2020015846A1 (fr) 2018-07-16 2020-01-23 Wenker Gmbh & Co. Kg Procédé à régulation thermodynamique et installation de séchage à régulation thermodynamique pour le séchage de produits à sécher
US10928134B2 (en) 2016-02-17 2021-02-23 Eisenmann Se Burner unit and device for the temperature control of objects

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3218727A (en) * 1962-07-17 1965-11-23 Dorothy C Lind Apparatus for freeze-drying and method
US4662840A (en) * 1985-09-09 1987-05-05 Hunter Engineering (Canada) Ltd. Indirect fired oven system for curing coated metal products
EP0851194A2 (fr) * 1996-12-23 1998-07-01 Martin Dipl.-Ing. Knabe Sécheur avec purification de gaz d'échappement par post-combustion thermique
DE19735322A1 (de) 1997-08-14 1999-02-18 Bayerische Motoren Werke Ag Durchlauflufttrocknungsanlage
EP1076218A1 (fr) * 1999-08-11 2001-02-14 EISENMANN MASCHINENBAU KG (Komplementär: EISENMANN-Stiftung) Séchoir pour une installation de peinture

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3218727A (en) * 1962-07-17 1965-11-23 Dorothy C Lind Apparatus for freeze-drying and method
US4662840A (en) * 1985-09-09 1987-05-05 Hunter Engineering (Canada) Ltd. Indirect fired oven system for curing coated metal products
EP0851194A2 (fr) * 1996-12-23 1998-07-01 Martin Dipl.-Ing. Knabe Sécheur avec purification de gaz d'échappement par post-combustion thermique
DE19735322A1 (de) 1997-08-14 1999-02-18 Bayerische Motoren Werke Ag Durchlauflufttrocknungsanlage
EP1076218A1 (fr) * 1999-08-11 2001-02-14 EISENMANN MASCHINENBAU KG (Komplementär: EISENMANN-Stiftung) Séchoir pour une installation de peinture

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103946655A (zh) * 2011-11-25 2014-07-23 艾森曼股份公司 用于对物体调温的装置
WO2013075793A1 (fr) * 2011-11-25 2013-05-30 Eisenmann Ag Dispositif de mise en température d'objets
CN103946655B (zh) * 2011-11-25 2016-06-01 艾森曼股份公司 用于对物体调温的装置
US9410741B2 (en) 2011-11-25 2016-08-09 Eisenmann Ag Device for controlling the temperature of objects
EP2633922A1 (fr) * 2012-03-01 2013-09-04 Eisenmann AG Dispositif d'utilisation thermique d'un fluide primaire et installation de traitement d'objets avec celui-ci
EP2844937B1 (fr) 2012-05-02 2018-03-21 Dürr Systems AG Dispositif pourvu d'une chambre de traitement pour pièces d'oeuvre
EP2844937B2 (fr) † 2012-05-02 2023-05-03 Dürr Systems AG Dispositif pourvu d'une chambre de traitement pour pièces d'oeuvre
EP2924381A1 (fr) * 2014-03-28 2015-09-30 Sabine Schindler Alimentation en air frais
US10254044B2 (en) 2014-03-28 2019-04-09 Sabine SCHINDLER Method and device for extracting, heating, and recirculating waste air from a dryer system
EP2924380A1 (fr) * 2014-03-28 2015-09-30 Sabine Schindler Brûleur supplémentaire
US10928134B2 (en) 2016-02-17 2021-02-23 Eisenmann Se Burner unit and device for the temperature control of objects
DE102017105094A1 (de) 2017-03-10 2018-09-13 Eisenmann Se Temperiervorrichtung für oberflächenbehandelte Gegenstände wie Fahrzeugteile
US11137209B2 (en) 2017-03-10 2021-10-05 Eisenmann Se Temperature control device for surface-treated objects such as vehicle parts
WO2020015846A1 (fr) 2018-07-16 2020-01-23 Wenker Gmbh & Co. Kg Procédé à régulation thermodynamique et installation de séchage à régulation thermodynamique pour le séchage de produits à sécher

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