EP2422153A2 - Dispositif de séchage et/ou de durcissage - Google Patents

Dispositif de séchage et/ou de durcissage

Info

Publication number
EP2422153A2
EP2422153A2 EP10715814A EP10715814A EP2422153A2 EP 2422153 A2 EP2422153 A2 EP 2422153A2 EP 10715814 A EP10715814 A EP 10715814A EP 10715814 A EP10715814 A EP 10715814A EP 2422153 A2 EP2422153 A2 EP 2422153A2
Authority
EP
European Patent Office
Prior art keywords
zone
exhaust air
fresh air
drying
exhaust
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
EP10715814A
Other languages
German (de)
English (en)
Other versions
EP2422153B1 (fr
Inventor
Peter NÄPFEL
Oliver Iglauer
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.)
Duerr Systems AG
Original Assignee
Duerr Systems AG
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
Family has litigation
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Application filed by Duerr Systems AG filed Critical Duerr Systems AG
Priority to PL10715814T priority Critical patent/PL2422153T3/pl
Publication of EP2422153A2 publication Critical patent/EP2422153A2/fr
Application granted granted Critical
Publication of EP2422153B1 publication Critical patent/EP2422153B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/008—Seals, locks, e.g. gas barriers or air curtains, for drying enclosures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0209—Multistage baking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F26B15/14—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by trays or racks or receptacles, which may be connected to endless chains or belts
    • 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
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • 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 drying and / or curing plant, which is used in particular for drying and / or curing of coated and / or glued workpieces. Specifically, the invention relates to the field of continuous dryers, continuous curing plants, chamber dryers and chamber hardening plants in which glued and / or painted bodies or body parts can be dried and / or cured. Furthermore, the invention relates to a paint shop with such a drying and / or curing plant.
  • a painting with paint spray booths is known, which is followed by a hot air-fed drying system for the painted workpieces.
  • the paint system is constantly flowed through by a tempered fresh or mixed air stream, which is enriched with paint mist from air through a circulating water operated washing device.
  • a heat pump for energy recovery is provided, which has a water tank as a heat storage, wherein a collecting container for the circulating water of Lackspritzkab ⁇ nen also serves as a heat storage for the heat pump.
  • the heat pump also serves to supply energy to the drying plant.
  • the known heat pump is designed here as a motor-driven heat pump.
  • the object of the invention is to provide a drying and / or curing plant and a paint shop with such a drying and / or curing plant, which allows optimized energy consumption.
  • the amount of fresh air and the amount of exhaust air can be optimized. It is also possible that the amount of exhaust air discharged from a zone is wholly or partly recycled to the drying and / or curing plant. The amount of exhaust air can thereby serve wholly or partly as a circulating air volume.
  • the fresh air and / or exhaust air quantity control controls the fan unit and regulates the throughput in order to adjust the volume of fresh air which can be introduced into the zone and / or the exhaust air quantity which can be diverted from the zone as required.
  • a Vent ⁇ latorü may be provided with several possibly different fans and assigned to a zone. Several fans can be controlled independently of each other and switched individually in the manner of a simple on / off control. The multiple, individually switchable fans work together preferably as a step-by-step fan unit. Furthermore, several zones can be provided, each of which is assigned one or more fan units.
  • one fan unit is used for several zones.
  • a fan unit with at least one frequency-controlled fan it is possible to vary the fresh air and / or exhaust air amount quickly and easily. This can optimize energy consumption.
  • a fan can be provided with adjustable rotor blades in order to be able to realize with this a flow rate / umen / flow adjustment.
  • a fresh air and / or exhaust air quantity control varies the fresh air and / or exhaust air quantity in particular by means of an adjustable fan unit according to the invention so that the fresh air and / or exhaust air amount is sufficient to prevent condensation in the zone. It can preferably be provided that the dew point in the zone or the actual relative and / or absolute air humidity is determined and used as influencing variables for the system control. In this way, on the one hand, the energy consumption can be optimized and, on the other hand, the amount of fresh air required for the tightness of sluice zones can be set sufficiently large in order to prevent condensation in the system.
  • the amount of fresh air can also be optimized in relation to other requirements.
  • a solvent enrichment in the air of the drying and / or curing plant can be limited with respect to a predetermined limit.
  • the solvent enrichment can be limited to less than 25% of the lower explosion limit (LEL) according to DIN EN 1539.
  • LEL lower explosion limit
  • empirical formulas are used for a calculation of the amount of fresh air to avoid such a Lösananre ⁇ cherung then the LEL according to DIN EN 1539 authoritative and to ensure the tightness of the airlock, in particular by thermal separation by air curtain.
  • the larger of the two values resulting from a full utilization of the dryer or hardener would have to be selected for the installed fresh air quantity.
  • the amount of fresh air supplied and thus the energy consumption of the system can be optimized with respect to the compliance of such limits. This is particularly advantageous for a temporary Teiiauslastung the system advantage.
  • the fresh air and / or exhaust air quantity control controls the fresh air and / or exhaust air quantity as a function of a current number of supplied workpieces. For example, a number of introduced into the plant workpieces, in particular the number of bodies or body parts, are counted to determine the utilization rate of the system.
  • the fresh air quantity can be increased to a predetermined value, which can be determined, for example, by empirical formulas and / or individually performed measurement is determined. At a lower utilization then a corresponding reduction in the amount of fresh air can be done.
  • the fresh air and / or exhaust air quantity control the amount of fresh air and / or exhaust air in dependence on a size based on an emission of organic substances (hydrocarbon compounds) in at least one zone, especially in a designed as a lock zone zone, based, controls and / or that the fresh air and / or exhaust air quantity control sets the fresh air and / or exhaust air depending on an energy consumption of a heater, in particular a gas consumption of a gas burner of the heater and / or the position of a gas control valve for the gas burner of the heater.
  • This variable which is based on the emission of organic substances in the plant or a working space or a zone of the plant, can be measured at a measuring point in the working space or the zone or in an exhaust duct by means of one or more sensors.
  • the drying and / or curing plant may optionally also perform a control.
  • this quantity may also serve as a control parameter, which may be taken into account together with other control parameters.
  • about the energy supply, in particular the gas consumption or the position of the gas control valve said size can also be determined indirectly. That is, in the form of the energy supply of the heater is given an indirect process variable in the work space, which can serve for control or regulation.
  • total carbon Cges in the exhaust air.
  • the aim of a Cges control is to counteract solvent release, in particular to limit solvent enrichment to 25% of the lower explosion limit (LEL).
  • the total amount of carbon (total carbon Cges) can be determined absolutely or relatively. In a relative determination, a determination of the total amount of carbon in the exhaust air takes place based on the volume of the exhaust air. This represents a concentration measurement. This can be reliable the achievement of an explosion limit can be prevented.
  • hydrocarbons in particular are recorded with regard to their carbon content and possibly weighted!
  • similar quantities such as a total amount of halogen, a total amount of hydrogen or a total amount of CO2 may be used alternatively or additionally.
  • the fresh air and / or exhaust air quantity control controls the fresh air and / or exhaust air quantity as a function of a current total heat capacity of the air and / or a total amount of carbon in the air in at least one zone, in particular in a zone designed as a lock zone, and / or that the fresh air and / or exhaust air quantity control sets the fresh air and / or exhaust air as a function of energy consumption of a heater, in particular a gas consumption of a gas burner of the heater and / or the position of a gas control valve for the gas burner of the heating device.
  • the gas consumption or the position of the TAR gas control flap which is the position of the gas control flap for the thermal waste air purification (TAR), preferably serves as an indirect process variable for the determination of the total carbon content (Cges).
  • the total carbon content in the exhaust air can be measured at a suitably arranged measuring point, for example in an exhaust duct, by means of one or more sensors.
  • the drying and / or curing plant may optionally also perform a control.
  • the total carbon of the exhaust air may also serve as a control parameter which may be considered along with other control parameters.
  • the energy consumption in particular the gas consumption or the position of the gas control flap, the total carbon of the exhaust air can also be determined indirectly.
  • a zone is designed as a lock zone and if at least one nozzle is provided at an outer end of the lock zone, via which the fresh air quantity can be introduced into the zone.
  • a nozzle can be designed in different ways, for example as a slot nozzle or exhaust opening.
  • a desired flow for the fresh air quantity introduced into the zone can advantageously be predefined by the nozzle.
  • a targeted mixture of fresh air and air serving as circulating air in the lock zone is possible.
  • the nozzle is directed into an interior of the lock zone or if the nozzle forms a fresh air curtain at the outer end of the lock zone. This allows the heated air in the system to be kept in the system. In this case, a thermal pressure of the warm system atmosphere can be counteracted by the nozzle. A reduction of the supplied fresh air can be compensated for example by a corresponding increase in a mixed to the fresh air exhaust air.
  • a further zone in particular a holding zone, is provided and if the fresh air and / or exhaust air quantity control controls or regulates the fresh air quantity which can be introduced into the sluice zone and the exhaust air quantity which can be diverted from the further zone.
  • the fresh air and / or exhaust air quantity control controls or regulates the fresh air quantity which can be introduced into the sluice zone and the exhaust air quantity which can be diverted from the further zone.
  • increased evaporation of solvents or the like can take place.
  • the actual accumulation of air in the holding zone can vary considerably, especially at different capacity utilization of the system.
  • By controlling the discharged from the holding zone exhaust air amount can thus be an optimization of energy requirements. This is particularly advantageous when this amount of exhaust air must be completely or partially replaced by fresh air, which is to heat up accordingly.
  • the fresh air and / or exhaust air quantity control at least indirectly controls the part of the exhaust air quantity which can be introduced into the lock zone or regulates.
  • a reduced amount of fresh air can be compensated by increasing the amount of fresh air added exhaust air.
  • the amount of exhaust air is removed from a holding zone or the like, in which the solvent enrichment is large, to evenly distribute the air in the system. The exceeding of a limit value can be prevented in an advantageous manner.
  • FIG. 1 shows a system in a schemat ⁇ schen representation according to a first embodiment of the invention
  • FIGS. 1, 2 and 3 shows a lock zone of a system according to a possible embodiment, which may be provided in particular in the embodiments illustrated in FIGS. 1, 2 and 3;
  • FIG. 5 shows a system in a schematic representation according to a fourth exemplary embodiment of the invention.
  • FIG. 6 shows a system in a schematic representation according to a fifth embodiment of the invention.
  • FIGS. 5 and 6 show a lock zone of a system according to a further possible embodiment, which may be provided in particular in the embodiments illustrated in FIGS. 5 and 6;
  • FIG. 8 shows a system in a schematic illustration according to a sixth exemplary embodiment of the invention.
  • FIGS. 8 and 9 are lock zone of a system according to a possible embodiment, which may be provided in particular in the embodiments shown in FIGS. 8 and 9;
  • FIG. 11 shows an installation in a schematic illustration according to an eighth exemplary embodiment of the invention
  • FIG. 12 shows a plant in a schematic illustration according to a ninth embodiment of the invention
  • Fig. 14 is a plant in a schematic representation according to a tenth embodiment of the invention.
  • Fig. 15 is a plant in a schematic representation according to an eleventh embodiment of the invention.
  • Fig. 1 shows a drying and / or curing system 1 in a schematic representation according to a first embodiment.
  • the drying and / or curing plant 1 can be part of a paint shop 2.
  • the painting installation 2 can have one or more painting zones 3, in which a workpiece 4 and a multiplicity of further such workpieces are painted.
  • the drying and / or curing system 1 can be attached to these painting zones 3 and, in particular, can be connected downstream in a conveying direction.
  • This drying and / or curing plant 1 is generally downstream of a cooling zone, not shown, in which the workpiece 4 is cooled for further process steps or steps.
  • the drying and / or curing system 1 is suitable for drying and / or curing of painted and / or glued components, in particular of bodies, body parts or other assemblies / parts of a land vehicle, watercraft or aircraft.
  • A-dryer Another possible type of dryer is an A-dryer.
  • the lock and the system are at different levels.
  • the actual The lock function is achieved by thermal separation.
  • the locks also work with an air curtain.
  • hot fresh air is blown at the level of the useful space floor via an exhaust opening in the A-part.
  • the workpiece 4 shown in FIG. 1 is designed as a painted body for a vehicle or aircraft.
  • the workpiece 4 is fastened on a suitable support 5, which can be moved in a conveying direction 6, around the workpiece 4 from the painting zones 3 into the drying and / or curing installation 1 and through the drying and / or curing installation 1 convey.
  • the transport of the workpiece 1, in particular the body can be continuous or discontinuous.
  • the drying and / or curing system according to the invention and the paint system 2 according to the invention are also suitable for other applications.
  • the drying and / or curing plant 1 has a plurality of zones 7, 8, 9, 10, 11.
  • a zone is designed as a lock zone 7 in the form of an inlet lock 7.
  • a zone is designed as a first heating zone 8.
  • Another zone is designed as a second heating zone 9.
  • a zone is designed as a holding zone 10.
  • a zone is designed as a lock zone 11 in the form of an outlet lock 11.
  • Zones 7, 11 are thermally insulated against the environment on their outer wall, in particular by suitable insulation means. However, the workpiece 4 must go into the drying and / or curing plant 1 and out of this again.
  • the locks Zones 7, 11 are advantageously designed so that in particular a provided in the inner space 12, heated air does not escape or escape is at least largely avoided.
  • the first heating zone 8 and the second heating zone 9 allow heating of the workpiece 4, wherein in this embodiment, a heating in two stages is possible.
  • one or more workpieces 4 can be heated in zones 8, 9.
  • the workpiece 4 can be conveyed into the zone 9 after heating in the zone 8 in order to allow further heating.
  • one or more workpieces 4 may remain for a certain period of time. Drying and hardening of the workpiece 4 takes place, for example, in the holding zone 10 (possibly assisted by means of electromagnetic radiation).
  • Solvents in the form of aliphatic and / or aromatic hydrocarbons, fluorohydrocarbons, fluorochlorohydrocarbons, esters, ketones, glycol ethers, alcohols, water and the like then accumulate mainly in the zone 10 in the air of the Interior 12 on.
  • solvents escape in the drying and / or curing plant 1, depends on the particular solvent or the solvent component.
  • Low boilers escape at low ( ⁇ 100 0 C), medium boilers at medium (100 0 C to 150 0 C) and high boilers at high (> 150 0 C) temperatures.
  • For the drying and / or curing process in the holding zone 10 may be given a certain amount of time after which the workpiece 4 is transported via the lock zone 11 from the drying and / or curing unit 1.
  • the glued and / or painted workpiece 4 is then dried and / or cured.
  • the drying and / or curing plant 1 During operation of the drying and / or curing plant 1, some replacement of the air provided in the interior 12 is required. In this case, a certain amount of air can be removed from the drying and / or curing plant, which is replaced by fresh air.
  • This air exchange or the fresh air are required because the air in the interior 12 with Lö- enriches agents that reach during the drying and / or curing process from a paint film or adhesive in the interior (work space) 12 of the drying and / or curing system 1, and this enrichment must be counteracted.
  • the air enriched with solvents can be gradually, in particular continuously, replaced to ensure that the air can continue to absorb solvents.
  • a certain threshold value can be predetermined, which should not be exceeded or only slightly exceeded in order to maintain a proper drying and / or curing process.
  • This exchange or the supply of fresh air into the interior 12 takes place here in a targeted manner, wherein an exchange via the sluice zones 7, 11 is prevented as far as possible, otherwise undesired warm air from the interior 12 enters the hall.
  • the drying and / or curing plant 1 of this embodiment has gas-operated heating devices 15, 16, 17, 18, 19.
  • a gas burner 20 is provided on the heater 15, which serves for heating a suitable medium, in particular of air.
  • a thermal exhaust air recirculation (TAR) is formed, which represents a preferably central heating unit or heat source and exhaust air purification system in one.
  • the heater 16 has throttle valves 22, 23 to use some of the heat energy generated by the gas burner 20 in the heater 16, while the remaining part is passed to the next He ⁇ ze ⁇ nraum 17. Accordingly, the heaters 17, 18, 19 have throttle valves.
  • the heating device 15 likewise has a throttle flap 24, via which a portion of the gas burner 20 is produced. testified, hot gases can be forwarded directly to the heater 16.
  • the heating devices 15 to 19 have heat exchangers 25, 26, 27, 28, 29.
  • the heat exchanger 26 of the heating device 16 in this embodiment, a suction side 30 and an outflow side 31 of an exhaust air line 32 is assigned.
  • the heat exchanger 26 is arranged together with a fan 33 in the exhaust duct 32.
  • the fan 33 is arranged downstream of the heat exchanger 26 in the flow direction of the exhaust air guided through the exhaust duct 32.
  • air can be sucked out of the zone 8 and led to the heat exchanger 26.
  • the heated exhaust air is then passed back to the zone 8 via the ventilator 33 and the exhaust air line 32.
  • a certain temperature of the air in the first heating zone 8 can be achieved and maintained.
  • the zone 9 is connected via an exhaust air line 34 to the heater 17, wherein the heat exchanger 27 is arranged in the exhaust air line 34.
  • the holding zone 10 is connected via an exhaust air line 35 to the heating device 18, wherein the heat exchanger 28 is arranged in the exhaust air line 35.
  • the air in the zones 8, 9, 10 can be heated and maintained at a desired level.
  • the temperature in the zones 8, 9, 10 can be influenced within certain limits by the heaters 16, 17, 18 separated from each other. For example, the temperature may increase from zone 8 to zone 9 and from zone 9 to zone 10, respectively.
  • an exhaust air line 40 is also provided.
  • a suction side 41 of the exhaust air line 40 is arranged in the zone 10.
  • An outflow side 42 of the exhaust air line 40 opens into a combustion chamber 43 of the gas burner 20.
  • the gas generated for burning the gas Required oxygen can thus be obtained from the air flowing through the exhaust air line 40 from the holding zone 10, wherein this air is heated.
  • the exhaust air is thermally cleaned from the holding zone, so that in the direction of arrow 21 clean gas is released to the atmosphere.
  • the heat exchanger 25 is arranged in the exhaust air line 40, so that the exhaust air flowing into the combustion chamber 43 on the outflow side 42 can be preheated.
  • a throttle valve 44 is arranged in the exhaust duct 40.
  • a fan 45 is arranged, which is designed as a particular (frequency) controlled fan 45.
  • a control device 46 is provided, which forms an interface to the fan 45.
  • the fan via adjustable inlet or outlet grille or nozzles and / or adjustable blades and / or a variable rotational frequency with respect to its flow rate (volume flow) is made adjustable.
  • the drying and / or curing plant 1 has a fresh air and / or exhaust air quantity control 50.
  • the fresh air and / or exhaust air quantity controller 50 is connected to the control device 46 of the fan 45.
  • the fresh air and / or exhaust air quantity control 50 can specifically control the exhaust air amount taken from the zone 10 via the exhaust air line 40.
  • the drying and / or curing system 1 has a fresh air line 51.
  • the fresh air line 51 has a fresh air inlet 52, via which fresh air can be sucked. From the fresh air inlet 52, the fresh air is first passed through the fresh air line 51 through the heater 19.
  • the heat exchanger 29 is arranged in the fresh air line 51.
  • the fresh air line 51 has a first outlet point 53 at the lock zone 7 and a second outlet point 54 at the lock zone 11.
  • throttle 55, 56 arranged to each of the outlet points 43, 44 guided proportion of the amount of fresh air, which is supplied via the fresh air line 51, to determine and optionally to vary.
  • adjustable gratings or nozzles are provided at individual or all outlet points in order to be able to make an adjustment of the volume flows passed through.
  • a frequency-controlled fan 57 is advantageously arranged.
  • the fan 57 is arranged in the flow direction in front of the heat exchanger 29 of the heater 19 in the fresh air line 51.
  • a control device 58 is provided, which is associated with the fan 57 and forms an interface to the fan 57.
  • the fresh air and / or exhaust air quantity control 50 is connected to the control device 58 of the fan 57.
  • the throttle valves 55, 56 may be fixed and optionally changed in position by an operator. However, it is also possible that the throttle valves 55, 56 are variably adjusted by the fresh air and / or exhaust air quantity control 50 in order to control the proportions of the fresh air quantity which are conducted into the zones 7, 11.
  • nozzles 59, 60 are arranged.
  • the nozzle 59 is arranged at an outer end 61 of the lock zone 7.
  • the nozzle 59 is directed obliquely into the inner space 12, that is, into the interior of the lock zone 7.
  • the nozzle 60 is disposed at an outer end 62 of the lock zone 11.
  • the nozzle 60 is directed obliquely into the interior 12, that is, into the interior of the lock zone 11.
  • the fresh air and / or exhaust air quantity control 50 controls the fan 45 via the control device 46 and the valve via the control device 58. tilator 57 variable.
  • the particular frequency-controlled fans 45, 57 can be easily adjusted.
  • the fresh air and / or exhaust air quantity control 50 can thus adjust the amount of exhaust air currently discharged from the zone 10 via the fan 45.
  • the fresh air and / or exhaust air quantity control 50 can set the fresh air quantity introduced into the zones 7, 11 via the fresh air line 51.
  • the amount of exhaust air removed via the exhaust air line 40 can hereby be replaced by a corresponding amount of fresh air.
  • the introduced amount of fresh air and the discharged exhaust air are in this case chosen so that a condensate avoidance in the area of the lock zones 7, 11 is prevented.
  • the amount of solvent introduced into the interior 12 varies, can serve as a parameter, the number of workpieces 4.
  • the amount of solvent introduced into the interior 12 varies in direct dependence on the number of workpieces 4, so that the amounts of fresh air and exhaust air can be varied proportionally to the number of workpieces 4.
  • further properties of the workpieces 4 are taken into account, for example a size of the workpiece 4, a material of the workpiece 4 or the type and amount of the coating material or glue.
  • This information can receive the fresh air and / or exhaust air quantity control 50 from a higher-level system control of the paint shop 2,
  • an accumulation of solvents which reach during the drying and / or curing process from the paint film, an adhesive or the like in the work space 12 of the drying and / or curing unit 1, can be counteracted.
  • sufficient fresh air can be continuously conducted into the work space 12 and at the same time solvent-containing air can be discharged from the work space 12. This can be done in the heater 15 for the exhaust air discharged thermal exhaust air. The required energy consumption is optimized.
  • FIG. 2 shows a painting installation 2 with a drying and / or curing system 1 in a schematic representation according to a second exemplary embodiment of the invention.
  • a workpiece detection device 65 is provided which, viewed in the conveying direction 6, is arranged in front of the lock zone 7 of the drying and / or curing system 1, but after the painting zone 3.
  • a workpiece detection device is alternatively or additionally provided, which is connected downstream of a dryer.
  • a separate workpiece detection device is dispensed with if an indicator for the number of workpieces is defined in another way via the system control.
  • sensors or transmitting / receiving units that work on the basis of electromagnetic waves, induction and / or weight measuring are preferably suitable as workpiece detection devices.
  • the workpiece detecting device 65 may detect a workpiece number of the workpiece 4 or information related to the workpiece 4.
  • the fresh air and / or exhaust air quantity control 50 can take into account further information about the workpiece 4 in the control.
  • the condition of the workpiece 4 can be taken into account.
  • a size of the workpiece 4, a material of the workpiece 4 or also the type and quantity of a coating material, in particular a lacquer layer, or an adhesive are taken into account.
  • this information can be obtained by reference to a workpiece number of the workpiece 4 from a higher-level system control system.
  • Another process variable which is taken into account by the fresh air and / or exhaust air quantity control 50 is the humidity of the air in the lock area, that is to say in the lock zone 7 and / or the lock zone 11.
  • a moisture sensor 66 is arranged in the lock zone 7 .
  • the humidity sensor 66 detects a Humidity in the lock zone 7, in particular a relative humidity.
  • the sensor 66 may also detect several physical quantities, for example both the humidity and a temperature in the zone 7.
  • the humidity detected by the humidity sensor 66 is sent to the fresh air and / or exhaust air quantity controller 50.
  • the fresh air and / or exhaust air quantity control 50 controls the fresh air and / or exhaust air quantity as a function of the humidity detected by the humidity sensor 66 and other input variables, in particular the utilization rate of the drying and / or curing plant 1 detected via the workpiece detection device 65.
  • a sensor 77 is provided, which is connected via a line 78 to the fresh air and / or exhaust air quantity control 50.
  • the sensor 77 is used to detect the total carbon in the work space 12.
  • the sensor 77 is arranged in the holding zone 10. It is advantageous if the sensor 77 is arranged in the exhaust air line 40 in order to measure the total carbon of the exhaust air, which is guided through the exhaust air line 40.
  • a detection device 79 is provided on a gas line 80 for a gas burner 20, which serves to detect the current gas consumption of the gas burner 20. The detection device 79 can also detect the position of a gas control valve in the gas line 80.
  • the fresh air and / or exhaust air quantity control 50 may take into account the directly or indirectly determined total carbon relative to the useful space 12 in controlling the fresh air and / or exhaust air quantity control alone or together with other sensed quantities.
  • an exhaust pipe 40 is provided.
  • the suction side 41 of the exhaust air line 40 is arranged in the holding zone 10.
  • the exhaust air line 40 leads through the heat exchanger 25 of the heating device 15 to the gas burner 20.
  • a further exhaust duct 82 is provided in addition to the exhaust duct 40.
  • a suction side 83 of the exhaust air line 82 is also arranged in the holding zone 10.
  • the further exhaust air line 82 is merged with the fresh air line 51 at a connection point 84.
  • the fresh air from the fresh air line 51 and the exhaust air from the further exhaust air line 82 mix at the connection point 84. From the connection point 84, this mixture is continued in a common line (gas line) 85.
  • the line 85 has, according to the fresh air line 51 shown in FIG. 1, a first outlet 53 at the lock zone 7 and a second outlet 54 at the lock zone 11.
  • the further exhaust duct 82 is a variable in its throughput, in particular frequency-controlled fan 86 is arranged.
  • the fan 86 is connected to a control device 87, which serves as an interface to the fan 86.
  • the fresh air and / or exhaust air quantity controller 50 is connected to the control device 87 of the fan 86.
  • a throttle valve 88 is arranged in the further exhaust duct 82.
  • the throttle valve 88 is viewed in the flow direction of the exhaust air behind the fan 86 in the further exhaust duct 82.
  • the throttle valve 88 is adjustable by means of an electric motor 89.
  • the fresh air and / or exhaust air quantity controller 50 is connected to the electric motor 89 of the throttle valve 88.
  • the Frischluftle ⁇ tung 51 of the frequency-controlled fan 57 is arranged, which is controllable via the control device 58 of the fresh air and / or exhaust air quantity control 50.
  • exhaust air from the holding zone 10 is to be diverted.
  • the exhaust air to be discharged is removed via the exhaust air line 40 from the drying and / or curing plant 1, wherein a thermal exhaust air purification takes place in the combustion chamber 43.
  • the extracted via the exhaust duct 40 exhaust air is only a part of the total extracted from the holding zone 10 exhaust.
  • Another part of the out of the holding zone 10 exhaust air passes through the further exhaust duct 82 in the line 85.
  • This other part of the exhaust air is then introduced together with the fresh air in the zones 7, 11
  • the other part of the exhaust air is thus used in relation to the entire drying and / or curing system 1 as circulating air.
  • the solvent-enriched air can be distributed over the interior 12.
  • a high concentration of solvents in the air of the zone 10 is reduced, whereby the thermal energy is maintained.
  • the energy demand can be further reduced.
  • the fans 45, 86 the total, discharged from the holding zone 11 exhaust air amount can be adjusted specifically to the actual needs.
  • the portion of the exhaust air quantity guided via the exhaust air line 40 and the further part of the exhaust air volume guided via the further exhaust air line 82 can be adjusted in a targeted manner.
  • the throttle valve 88 for controlling the part of the exhaust air amount, which is guided via the further exhaust duct 82 are used. Specifically, the throttle valve 88 can serve to block the further exhaust air line 82, so that an inflow of fresh air from the fresh air line 51 is prevented in the opposite direction by the further exhaust air line 82. This can be done, for example, in the fully loaded state of the drying and / or curing system 1, in which the fan 86 can be turned off.
  • the guided over the further exhaust duct 82 part of the exhaust air amount to replace part of the supplied fresh air quantity.
  • the air in the interior 12 of the drying and / or curing plant 1, in particular the lock air in the lock zones 7, 11, can also be filtered in a suitable manner.
  • FIG. 3 shows a painting installation 2 with a drying and / or curing installation 1 in a schematic representation according to a third exemplary embodiment.
  • a particular (frequency) controlled fan 57 ' is arranged.
  • an optionally uncontrolled fan 57 ' is assigned a passage / guide grille and / or an outlet flap device, by means of which a flow through the fan can be adjusted.
  • the fan 57 ' is connected to a control device 58', which serves as an interface. Via the control device 58 ', the fresh air and / or exhaust air quantity control 50 can control the fan 57' and / or its passage grille.
  • the fan 57 'in the line 85 thus replaced with respect to the second embodiment, the fan 86 in the further exhaust duct 82 and the fan 57 in the fresh air line 51.
  • the associated control means 58, 87 are replaced by a control device 58'.
  • the preferably regulated adjustably executed fan 57 ' serves in this embodiment as a (mousesfunktionaler) fan 57' for sucking the fresh air through the fresh air line 51 and for sucking the recirculating air for the drying and / or curing system 1 serving exhaust air from the holding zone 10th Alternatively or additionally, as the circulating air serving exhaust air from another zone, such as the heating zone 8 and / or the heating zone 9, are removed.
  • fresh air can be mixed with a serving as circulating air part of the exhaust air before entering the lock zones 7, 11. Furthermore, the total amount of the air mixture via the fan 57 'can be influenced. The proportions of the exhaust air and the fresh air in this air mixture can be adjusted via the throttle valves 88, 90. In this case, an advantageous control by the fresh air and / or exhaust air quantity control is possible, which may depend directly or indirectly on the current Ausiastungsgrad and the operating state of the drying and / or curing system 1.
  • the lock zone 7 has a floor 92 and a cover 93.
  • the first outlet point 53 of the fresh air line 51 or the line 85 opens into a by a suitable elements 94 separated from the interior 12 antechamber 95.
  • a filter 96 is arranged, of the passing through the outlet 53 into the vestibule 95 passing air is passed. From the antechamber 95 flows the air, that is, the fresh air or the mixture of fresh air and exhaust air, in the interior 12.
  • At least one nozzle 59 is disposed at the outer end 61 of the lock zone 7 and at a certain angle in the interior 12 directed.
  • one side of the slot nozzle is designed to be movable (eg in a slot guide).
  • the commissioning staff can set and fix the width of the nozzle.
  • the nozzle exit speed can be adjusted.
  • a separation plane 106 is predetermined, which is illustrated in FIG. 4 by a line 106 shown in broken lines.
  • the parting plane 106 divides the inner space 12 in the region of the lock zone 7 into an outer part 97 and an inner part 98.
  • In the inner part 98 prevails due to the warm atmosphere, a thermal pressure which causes a flow 99 in the inner part 98 of the inner space 12 in the direction of the outer end 61 of the lock zone 7.
  • the flow 99 is illustrated in FIG. 4 by arrows 99. The air flowing in via the nozzle 59 works against this flow 99.
  • FIGS. 2 and 3 there is the advantage that the gas mixture which flows into the interior 12 via the nozzle 59 is well preheated and relatively dry, so that a condensation occurs when the flow 99 meets the mixture flowing in via the nozzle 59 is prevented.
  • the energy required to heat the fresh air in the heating device 19 can thereby be optimized.
  • 5 shows a painting installation 2 with a drying and / or curing installation 1 in a schematic illustration corresponding to a fourth exemplary embodiment.
  • an exhaust air line 82 ' is provided, via which exhaust air serving as circulating air can be removed from the holding zone 10.
  • a Saugse ⁇ te 83 'of the exhaust duct 82' is seen here arranged in the conveying direction at the beginning of the holding zone 10.
  • the exhaust air line 40 is provided, the suction side 41 is also arranged at the beginning of the holding zone 10.
  • the exhaust duct 82 ' branches into a part
  • the part 101 of the exhaust duct 82 ' leads to a first outlet point 53' of the exhaust duct 82 '.
  • throttle valves 104, 105 are arranged, which are fixed. In this case, for example, an operator or an auxiliary drive manually and / or individually adjust the throttle valves 104, 105 in order to divide the waste air routed via the exhaust air line 82 'to the parts 101, 102 and thus the sluice zones 7, 11.
  • the nozzles 59, 60 of the lock zones 7, 11 designed to be split.
  • the nozzle 59 has an outer part 59 'and an inner part 59 ".
  • the nozzle 60 has an outer part 60' and an inner part 60". The design of the nozzles 59, 60 is described in more detail with reference to FIG. 7.
  • the fresh air and / or exhaust air quantity controller 50 determines the required amount of fresh air. This controls the Fresh air and / or exhaust air quantity control 50, the frequency-controlled fan 57 ', which is arranged in the fresh air line 51, so that the desired amount of fresh air is directed into the interior 12. According to the introduced fresh air quantity, the fresh air and / or exhaust air quantity control 50 activates the fan 45 in order to remove the exhaust air quantity corresponding to the fresh air quantity from the interior 12 via the exhaust air line 40. The discharged via the exhaust duct 82 'from the holding zone 10 exhaust air is not taken into account in this control, since this is performed as circulating air in the zones 7, 11 and thus passes back into the interior 12.
  • FIG. 6 shows a painting installation 2 with a drying and / or curing installation 1 in a schematic illustration corresponding to a fifth exemplary embodiment.
  • exhaust air lines 82 ', 82 are provided, and in contrast to the fourth exemplary embodiment described with reference to FIG. 5, a further exhaust air line 82" is therefore provided in addition to the exhaust air line 82'.
  • This also changes the configuration of the exhaust air line 82 '.
  • the sluice zone 11 is also arranged in this exemplary embodiment.
  • the exhaust air line 82 leads the exhaust air from the holding zone 10 in the adjacent to the holding zone 10 sluice zone 11.
  • the exhaust air is guided at the second outlet 54' to the nozzle 60.
  • a fan 86' and a throttle valve 105 are arranged in the exhaust duct 82 '.
  • the fan 86 ' is arranged upstream of the throttle valve 105 in the flow direction.
  • the fan 86 ' is not frequency-controlled in this embodiment.
  • the throttle valve 105 is fixed and can optionally be adjusted by an operator or by means of an electric drive.
  • the exhaust air line 82 has a suction region 83", which is arranged in the region of the first heating zone 8.
  • the exhaust air line 82 "leads from the first heating zone 8 into the lock zone 7 arranged next to the first heating zone 8. This allows a certain amount of exhaust air to be conducted from the first heating zone 8 into the lock zone 7.
  • the exhaust air line 82 there are a fan 86 "and a fan
  • the throttle valve 104 is arranged downstream of the fan 86.
  • the fan 86 is not necessarily frequency-controlled.
  • the throttle valve 104 can be fixed by an operator via the exhaust air lines 82 ', 82 "can each be predetermined, constant , Are passed as circulating air serving amounts of exhaust air.
  • the exhaust air quantity conducted via the exhaust air line 82 ' is removed from the holding zone 10.
  • the exhaust air quantity conducted via the exhaust air line 82 " is removed from the first heating zone 8.
  • the extracted exhaust air quantities are then led back into the inner space 12 via the slip zones 7, 11.
  • the fresh air and / or exhaust air quantity control 50 controls the exhaust air amount finally taken off from the inner space 12 via the exhaust air line 40 by means of a fan 45 with an adjustable volumetric flow rate. Furthermore, this amount of exhaust air is replaced by a corresponding amount of fresh air.
  • the fresh air and / or exhaust air quantity control 50 preferably sets the rotational frequency or the passage cross section of the fan 57, specifically adapted to the requirements in the plant. With a plurality of fans connected in parallel, these can be switched on or off individually, adjusted to the requirements.
  • the partition wall 107 separates the fresh air flowing through the vestibule 95 from the exhaust air flowing through the vestibule 95.
  • the fresh air and the exhaust air are guided separately to the nozzle 59.
  • the fresh air from the part 95 'of the vestibule 95 is guided into the outer part 59' of the nozzle 59, while the exhaust air is guided into the inner part 59 "of the nozzle 59.
  • the nozzle 59 is designed so that two adjacent flows are generated in the inner space 12. This is illustrated in Fig. 7 by dividing planes 106 ', 106 ".
  • the flow 99 is deflected by the exhaust air flow from the nozzle 59 and the fresh air flow from the nozzle 59, as illustrated by the arrows 100.
  • FIG. 8 shows a painting installation 2 with a drying and / or curing installation 1 in a schematic representation according to an eighth exemplary embodiment.
  • the exhaust duct 82 ' is provided, which on its suction side 83' serving as circulating air exhaust air from the holding zone 11 via the parts 101, 102 of the exhaust duct 82 'to the nozzles 59, 60 of the lock zones 7, 11 passes.
  • a control device 87 'for the fan 86' is provided.
  • the fan 86 ' is in this case preferably designed as a frequency-controlled fan 86'.
  • the control device 87 ' serves as an interface for the (frequency) controlled fan 86' in particular.
  • the fresh air and / or exhaust air quantity control 50 can in this case control the fan 86 'via the control device 87'.
  • the exhaust air serving as circulating air which is passed via the exhaust air line 82 'from the holding zone 10 into the sluice zones 7, 11, with respect to their exhaust air amount of the fresh air and / or exhaust air quantity control 50 can be varied.
  • an increased concentration of solvents occurring in the holding zone 10 can be reduced by a stronger redistribution in the interior space 12.
  • the discharged via the exhaust duct 40 exhaust air amount and thus the supplied via the fresh air line 51 fresh air can be reduced in each case. This allows for energy savings.
  • actuators 108, 109 for the nozzles 59, 60 are provided in this exemplary embodiment.
  • the design of the actuators 108, 109 for the nozzles 59, 60 is described with reference to FIG. 10 in further detail.
  • FIG. 9 shows a painting installation 2 with a drying and / or curing installation 1 in a schematic representation corresponding to a seventh Embodiment.
  • the exhaust air line 82 "is provided, which directs exhaust air from the first heating zone 8 into the lock zone 7. Furthermore, the exhaust air line 82 is provided, which directs exhaust air from the holding zone 10 into the lock zone 11.
  • a control device 87 is provided for the fan 86.
  • the fan 86 is configured as a fan that is adjustable in terms of volume flow, and a controller 87 'is provided for the fan 86'
  • the volumetric flows of the fans 86, 86 '(fan unit) can be set to be electromechanically remote-controlled by means of guide / passage grids or flaps.
  • the fresh air and / or exhaust air quantity control 50 can control the fan 86 arranged in the exhaust air line 82 "via the control device 87. Furthermore, the fresh air and / or exhaust air quantity control 50 can use the control device 87 'to control the fan 86' in the exhaust air line In this way, the amount of exhaust air, which is conducted in the form of recirculated air from the first heating zone 8 into the lock zone 7, can be set in. In addition, the exhaust air serving as circulating air, which flows from the holding zone 10 into the lock zone 11 Furthermore, the fresh air and / or exhaust air quantity control 50 can actuate the actuators 108, 109, as described in further detail with reference to FIG.
  • the partition 107 is connected to the actuator 108.
  • the actuator 108 can adjust the partition 107 in this case, as illustrated by the double arrow 115. light is.
  • the partition 107 may be configured, for example, as a separating plate 107. 7, the dividing wall 107 is preferably arranged such that at least approximately equal slot widths result for the outer part 59 "and the inner part 59" of the nozzle 59.
  • one side is preferably designed to be movable in both nozzles (eg slot guide).
  • the commissioning staff can set the slot width and then fix it. This allows the nozzle exit speed of both nozzles to be set.
  • the partition wall 107 can be adjusted manually or automatically, so that, starting from a basic position during operation of the system, a variation of the Schiitzdüsenbreiten the outer part 59 'and the inner part 59 "of the Duse se 59
  • Actuator 108 may in this case be actuated by fresh air and / or exhaust air quantity controller 50, as illustrated in Figures 8 and 9.
  • actuator 109 may also be actuated by fresh air and / or exhaust air quantity controller 50.
  • a constant nozzle speed can be realized.
  • FIG. 11 shows a painting installation 2 with a drying and / or curing installation 1 in a schematic illustration corresponding to an eighth exemplary embodiment.
  • the fan arranged in the exhaust air line 82 ' generates a constant circulating air flow.
  • a constant amount of exhaust air in the sluice zones 7, 11 is passed through the exhaust air line 82 '.
  • the nozzle 59 is in the lock zone 7. ordered, which serves in this perennialsbe ⁇ spiel only for the on the first outlet 53 'of the part 101 of the exhaust duct 82' flowing exhaust air.
  • the nozzle 60 of the lock zone 11 is used only for the over the part 102 of the exhaust duct 82 'flowing exhaust air.
  • separate fresh air inlet regions 116, 117 are provided, which are oriented downwards and by means of which a fresh air curtain is produced.
  • the fresh air quantities guided into the sluice zones 7, 11 via the fresh air inlet regions 116, 117 preferably produce vertically expanded fresh air curtains in order to seal the interior 12 at the outer ends 61, 62 of the sluice zones 7, 11 with respect to the cold indoor air.
  • such fresh air inlet regions can be configured as follows: Nozzles, for example slot nozzles, round nozzles, high-pressure nozzles, nozzles with variable cross-section for variable speed.
  • air outlets for example comprising filters or jalousie flaps, can be used and distributed at different positions over the entire clear sluice cross section. As a result, condensation in the lock zones 7, 11 is prevented.
  • the nozzles 59, 60 are directed obliquely into the interior to retain a flow 99.
  • Separate fresh air inlet regions 116, 117 are provided for the fresh air supplied, whose fresh air quantity can be controlled by the fresh air and / or exhaust air quantity control 50.
  • the separate fresh air inlet areas 116, 117 produce vertically oriented fresh air curtains.
  • Various nozzles for example slot nozzles, round nozzles, high-pressure nozzles and variable-velocity variable-velocity nozzles, or air outlets, such as filters or louvers, may be used and distributed at various positions throughout the entire airlock cross-section.
  • FIG. 13 shows a sluice zone 7 of a drying and / or curing plant 1 according to a possible further embodiment, which in particular in the eighth exemplary embodiment described with reference to FIG. 11 or in the ninth embodiment of the coating installation 2 described with reference to FIG the drying and / or curing system 1 may be provided.
  • the zone 7 has in the region of its ceiling 93 elements 94, which separate the vestibule 95 from the interior 12. In this case, only the exhaust air is guided through the vestibule 95 in this embodiment. The fresh air is passed through a separate vestibule 95 '.
  • the nozzle 116 is designed in the form of a diaphragm which may have one or more aperture openings separated from one another by webs or the like.
  • the flow 99 is deflected, as illustrated by the arrows 100.
  • FIG. 14 shows a painting installation 2 with a drying and / or curing unit 1 in a schematic representation according to a tenth exemplary embodiment.
  • the exhaust duct 82 ' is provided, which is associated with the holding zone 10.
  • exhaust air from the holding zone 10 can be discharged via the exhaust air line 82 '.
  • the suction side 83 'of the exhaust duct 82' is arranged in the holding zone 10.
  • the fan 86' is arranged.
  • the fan 86 ' may optionally be adjusted by an operator to produce a certain, constant exhaust air volume flow.
  • the amount of exhaust air for the sluice zone 7 can be set smaller, equal to or greater than the amount of exhaust air for the sluice zone 11 as needed.
  • Fresh air is also sucked in above the fresh air inlet 52, wherein a fresh air volume flow is generated by the fresh air line 51 by means of the fan 57.
  • An operator or a system control device can adjust the fan 57 in this case in order to generate the desired fresh air volume flow through the fresh air line 51.
  • the operator can adjust the throttle valves 55, 56 associated with the lock zones 7, 11 appropriately. By adjusting the fan 57 and the throttle valves 55, 56, a fresh air quantity for the lock zone 7 and a delivery air quantity for the lock zone 11 can thus be predetermined.
  • the fresh air quantities for the sluice zones 7, 11 are in this case the same size or different sizes adjustable depending on the desired operating state.
  • the fresh air quantity can also be provided by an amount of exhaust air without a fresh air and / or exhaust air quantity control 50, as shown for example in FIGS. 5, 6 and 7 be supplemented.
  • the required amount of fresh air can be reduced, resulting in energy savings.
  • the exhaust air is removed from the holding zone 10. This corresponds to a situation, as described, for example, with reference to FIG. 5.
  • FIG. 6 an embodiment is possible, as described with reference to FIG. 6.
  • the amount of exhaust air for the lock zone 7 of the first heating zone 8 can be removed.
  • lock 7 may be configured according to the embodiment described with reference to FIG. 7.
  • the fresh air nozzle area formed by the outer portion 59 ' may be preceded by the dryer exhaust area formed by the inner portion 59' 61 cold air in the hall, first brought to temperature by the fresh-air curtain before it comes in contact with the lock air.
  • the nozzle 59 can be designed in different ways.
  • the nozzle 59 may be configured as a slit nozzle, a round nozzle, a high-pressure nozzle, a variable-speed variable-speed nozzle or the like. It is also possible that the nozzle 59 is divided into several partial nozzles, which are distributed at different positions over the entire clear lock cross-section. Thus, it can be counteracted by means of fresh air in an advantageous manner condensate formation.
  • the inner part 59 "of the nozzle 59 serving as a dryer exhaust nozzle or dryer air nozzle is located downstream of the outer part 59 'of the nozzle 59 serving as a fresh air nozzle is directed and counteracts the thermal pressure of the warm plant atmosphere.
  • the inner part 98 thereby represents the plant interior and thus the working space dar.
  • the nozzle 59 can be configured in different ways. For example, as Schluetzzüse, round nozzle, high-pressure nozzle, as a variable-speed nozzle for variable speed or the like.
  • different air outlets can be used, which can be arranged at different positions over the entire clear sluice cross-section. As air outlets can serve, inter alia, filters or jalousie flaps.
  • the tightness of the sluice zone 11 serving as a lock can be ensured.
  • the fresh air on the cold side is adjusted by means of the fan 57.
  • the throttle valves 104, 105 are used for the division of the lock zones 7, 11.
  • a possible extraction point for the circulating air from the interior (working space) 12 of the drying and / or curing plant 1 is at the beginning of the holding zone 10. This is illustrated in FIG. 14 by the arrangement of the suction side 83 'at the holding zone 10.
  • FIG. 15 shows a painting installation 2 with a drying and / or curing installation 1 in a schematic representation according to an eleventh exemplary embodiment.
  • the amount of exhaust air for the sluice zone 7 is removed from the first heating zone 8.
  • the amount of exhaust air for the lock zone 11 is removed from the holding zone 10.
  • exhaust ducts 82 ', 82 are provided to guide the respective amount of exhaust air to the lock zones 7, 11.
  • an operator sets the fan 86 and the throttle valve 104 to set the exhaust air amount for the lock zone 7.
  • the operator sets the fan 86 'and the throttle valve 105 to set the exhaust air amount for the fire zone 11.
  • the respective amount of fresh air for the sluice zones 7, 11 can be adjusted via the fan 57 and the throttle valves 55, 56 by the operator.
  • the amount of fresh air for the sluice zone 7 can be determined and, on the other hand, the amount of fresh air for the sluice zone 11 can be determined.
  • On a fresh air and / or exhaust air quantity control 50 as used for example in the embodiment described with reference to FIG. 6, this can optionally be dispensed with.
  • the Bed ⁇ enperson can be replaced by an electro-mechanical, pneumatic or hydraulic external drive with associated control device in the rest.
  • Fresh air and / or exhaust air quantity control or regulation can be advantageously combined with such a lock concept.

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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)

Abstract

L'invention concerne un dispositif de séchage et/ou de durcissage (1) servant notamment au séchage et/ou au durcissage de carrosseries (4) ou de parties de carrosseries vernies et/ou collées, le dispositif présentant plusieurs zones (7 - 11). Le dispositif comporte une commande de la quantité d'air frais et/ou d'air évacué (50) servant à commander une quantité d'air frais pouvant être introduite dans une zone de sas (7, 11) et une quantité d'air évacué pouvant être extraite d'une zone de maintien (10). Ceci permet d'obtenir une adaptation à divers états de fonctionnement, notamment d'obtenir un degré de délestage variable.
EP10715814.9A 2009-04-24 2010-04-22 Dispositif de séchage et/ou de durcissage Active EP2422153B1 (fr)

Priority Applications (1)

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PL10715814T PL2422153T3 (pl) 2009-04-24 2010-04-22 Instalacja do suszenia i/lub utwardzania

Applications Claiming Priority (3)

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DE102009018790 2009-04-24
DE102009021004A DE102009021004A1 (de) 2009-04-24 2009-05-12 Trocknungs- und/oder Härtungsanlage
PCT/EP2010/055382 WO2010122121A2 (fr) 2009-04-24 2010-04-22 Dispositif de séchage et/ou de durcissage

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EP2422153A2 true EP2422153A2 (fr) 2012-02-29
EP2422153B1 EP2422153B1 (fr) 2018-10-24

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EP (1) EP2422153B1 (fr)
DE (1) DE102009021004A1 (fr)
ES (1) ES2705677T3 (fr)
HU (1) HUE042160T2 (fr)
PL (1) PL2422153T3 (fr)
WO (1) WO2010122121A2 (fr)

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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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ES2705677T3 (es) 2019-03-26
HUE042160T2 (hu) 2019-06-28
WO2010122121A2 (fr) 2010-10-28
PL2422153T3 (pl) 2019-04-30
WO2010122121A3 (fr) 2011-03-03
DE102009021004A1 (de) 2010-10-28
EP2422153B1 (fr) 2018-10-24

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