Temperature control equipment for controlling the temperature of a workpiece and method for controlling the temperature of a workpiece

Abstract

The present invention relates to a temperature control system (100) for temperature control of a workpiece, specifically for heating a vehicle body, wherein the temperature control system (100) comprises: - at least two temperature control modules (104) arranged one-to-one in the transport direction (102) and one power module (105) for circulating air and temperature control, at least partially positioned between the at least two temperature control modules (104), the at least two temperature control modules (104) and the at least one power module (105) forming a temperature control chamber (106), through which a workpiece can be transported through the temperature control chamber along the transport direction (102) for temperature control using circulating air. Furthermore, the present invention relates to a corresponding method for temperature control of a workpiece, specifically for heating a vehicle body.

Description

Technical Field

[0001] The present invention relates to a temperature control facility for temperature-controlling a workpiece, specifically for heating a vehicle body. Furthermore, the present invention relates to a method for temperature-controlling a workpiece.

Background Art

[0002] In practice, temperature control facilities for heating vehicle bodies, which are configured as through-running dryers, are known. Such temperature control facilities usually have a tact-type or continuous vehicle body conveying mode.

[0003] A temperature control facility for heating a vehicle body can also be referred to as a dryer. The temperature control chamber of the facility, through which the vehicle body is conveyed, is also called a dryer tunnel.

[0004] Circulating air in known facilities is circulated and temperature-controlled using a circulating air unit or a temperature control device. In this regard, separate or integrated devices are known from the prior art.

[0005] In the case of separate units or devices, positioning can be performed, for example, above, below, or laterally of a dryer tunnel or a temperature control chamber.

[0006] Regarding the heat source used for heating the circulating air, for example, direct or indirect burner heating, electric heating, or clean gas heating is possible with the use of one or more heat exchangers.

[0007] In comparison, in the case of an integrated arrangement, the temperature control device or the circulating air unit is located on the same plane together with the temperature control chamber or the dryer tunnel.

[0008] Here, the ventilators used for circulating air guidance may be positioned on both sides of the dryer tunnel with respect to the conveying direction. Alternatively, the ventilators may be pushed into the dryer tunnel from above, so that in the case of radial ventilators, the impeller axis is oriented vertically.

[0009] In the case of an integrated circulating air unit or temperature control device, it has been preferred to place the heat sources for temperature control of the circulating air on both sides of the temperature control chamber or dryer tunnel. In addition to the combustion chamber, the clean gas passage can also be used as a radiation source for heating the circulating air.

[0010] The circulating air guide within the temperature control chamber or dryer tunnel can be performed on either side or one side with respect to the direction of transport. In the latter case, a portion of the circulating air is guided from the side of the temperature control equipment where the circulating air unit or temperature control device is located to the other side of the temperature control equipment via a connecting passage, crossover passage (Uberwurfkanals), connecting chamber, or crossover ceiling (Uberwurfdecke).

[0011] The return of circulating air from the temperature control chamber or dryer tunnel can be done on either side or on one side.

[0012] In the case of return guides for circulating air on both sides, air can circulate from the temperature control chamber to the start or end of the temperature control chamber or temperature control chamber section, for example, through the side walls, or through the floor or ceiling area. Return guides or exits for circulating air in the middle of the temperature control chamber have also been established.

[0013] For the return guide on one side of the circulating air, a return guide located in the middle of the temperature control room, on the floor side or at least close to the floor with respect to the direction of transport, is preferred.

[0014] Placing the aforementioned circulating air unit or temperature control device in the temperature control equipment specifically requires a corresponding amount of space for the temperature control equipment in the width direction of the equipment, which is oriented horizontally and vertically with respect to the conveying direction. [Overview of the project] [Problems that the invention aims to solve]

[0015] Therefore, the fundamental problem of the present invention is to provide a temperature control system that requires minimal space and is configured in an optimized manner in terms of resources. [Means for solving the problem]

[0016] According to the present invention, these problems are solved by a temperature control device for controlling the temperature of a workpiece, having the features described in claim 1.

[0017] Specifically, this type of temperature control equipment is used to heat the vehicle body.

[0018] The temperature control equipment consists of the following: - At least two temperature control modules positioned one behind the other in the transport direction, - At least one power module for circulating and temperature-controlling circulating air, positioned at least partially between the at least two temperature control modules. Includes, The at least two temperature control modules and the at least one power module form a temperature control chamber, through which the workpiece can be transported along the transport direction to control its temperature using circulating air. [Effects of the Invention]

[0019] The fundamental idea behind this invention is that the minimal width of the temperature control equipment or temperature control module allows for the installation of two temperature control equipment side-by-side within a standard 12-meter-hall grid, i.e., a double dryer. Furthermore, the lateral integration of the temperature control equipment is particularly easy to maintain. For this purpose, the power module is advantageously integrated (with respect to the workpiece transport direction) as an intermediate segment between the lateral temperature control equipment and the two temperature control modules, thereby connecting these temperature control modules. It is advantageous that the temperature control equipment does not protrude beyond the width of the temperature control module, or at least only slightly. Moreover, by positioning the temperature control equipment on one side of the temperature control equipment, a minimal structural height for the entire temperature control equipment within the building's plan can be achieved.

[0020] A characteristic feature of the temperature control equipment according to the present invention is that a ventilator having an axis oriented horizontally to the hall floor and perpendicular to the conveying direction is located on one side, that is, on one side of the temperature control equipment, the so-called working side, along with a plurality of temperature control units, which are advantageously formed as electrical heating units or heating registers (Heizregisters). This feature is also a necessary prerequisite for constructing a double dryer line or for installation against an adjacent hall wall or other similar obstructive contour.

[0021] A further advantage of the temperature control system according to the present invention is that by using temperature control modules connected to a central power module, the entire temperature control system can be modularized into a small number of standardized modules or segments.

[0022] Correspondingly, a standardized temperature control module having a fixed extension in the conveying direction (longitudinal extension) can be combined with a power module having a variable longitudinal extension. The variable longitudinal extension of the power module enables realization of a vehicle-body-specific tact length. Conversely, the power module may have a fixed longitudinal extension, and the longitudinal extension of the temperature control module may alternatively be formed to be variable.

[0023] Furthermore, for longer workpieces, it is also conceivable to increase the longitudinal extension of the temperature control installation through the use of intermediate modules.

[0024] This results in a cost-effective concept for a temperature control installation, wherein on one hand a circulating air flow is directed homogeneously and symmetrically onto the through-conveyed workpiece, and on the other hand the circulating air can be drawn out from the temperature control chamber of the temperature control installation by suction at the center or middle in the floor region relative to the conveying direction.

[0025] The temperature control module, which together with the power module forms a temperature control chamber or a dryer tunnel, makes it possible to provide a standard tact length for temperature control of workpieces. This can also be referred to as provision of so-called tact spaces. The tact space advantageously corresponds to the normal length or longitudinal extension of a workpiece formed as a vehicle body.

[0026] The tact space formed in each case by a temperature control module and / or by a temperature control module and a power module is dimensioned in terms of longitudinal extension such that it can advantageously accommodate one workpiece completely.

[0027] More advantageously, at least one tact space of the temperature control chamber, specifically the temporary position of a workpiece during transport in the transport direction, extends at least partially into the power module. This reduces the transport direction extension of temperature control modules adjacent to the power module. In other words, each temperature control module directly adjacent to a power module has a shorter tact space than the workpiece to be temperature-controlled, for example, a vehicle body to be heated, because a corresponding tact space extends at least partially into the power module.

[0028] The tactile operation or tactile travel mode of temperature control equipment has the advantage, compared to continuous operation where workpieces are transported through the equipment continuously, i.e., without any temporary pauses, that it allows temperature-controlled circulating airflow to be targeted or blown onto the workpiece at its temporary pause locations.

[0029] A temperature control system comprising two temperature control modules and one power module positioned between them, having, for example, an overall lateral extension of 11 m, provides two tact spaces for a workpiece up to 5 m in length, formed as a vehicle body.

[0030] It should be understood that the temperature control equipment according to the present invention is not limited to the number of temperature control modules, which are arranged one behind the other, and that further combinations of temperature control modules are possible. Accordingly, two to six or seven or more temperature control modules may be arranged one behind the other, and all possible combinations may form heating zones, holding zones, or cooling zones. Power modules may be positioned between or integrated with any two adjacent temperature control modules, but advantageously, power modules are positioned in the middle of each zone. It should not be ruled out that power modules may be positioned at the beginning or end of the temperature control equipment with respect to the transport direction.

[0031] The temperature control device is specifically a heating device and / or a cooling device, or is incorporated therein.

[0032] It may be advantageous if the temperature control equipment has at least one equipment housing, the equipment housing partitions the temperature control module and / or the power module from the surroundings of the temperature control equipment, or encloses the temperature control module and / or the power module.

[0033] The temperature control module and the power module are advantageously integrated into a common equipment housing.

[0034] Furthermore, the at least one power module may include at least one temperature control device.

[0035] It is advantageous that the at least one temperature control device is located to the side of the temperature control chamber with respect to the transport direction, and more advantageously, that the at least one temperature control device is located in a region substantially in the middle of the temperature control chamber with respect to the transport direction.

[0036] Furthermore, it is advantageous if the at least one power module includes a connection passage and / or a connection chamber.

[0037] If the temperature control device is located on one side, that is, on only one side of the temperature control chamber or temperature control equipment, it is necessary that a portion of the temperature-controlled circulating air be transported to the other side of the temperature control chamber in order to direct the flow uniformly and symmetrically to the workpieces inside the temperature control chamber.

[0038] It may be advantageous for the power module and two temperature control modules directly connected to the power module to form two tact spaces for two workpieces. Each of these tact spaces protrudes, at least partially, into the power module with respect to the transport direction.

[0039] Furthermore, the temperature control equipment may have at least two zones with different temperatures along the conveying direction.

[0040] In a further configuration of the present invention, the temperature control equipment may have at least one heating zone and / or at least one holding zone.

[0041] The zones are relative to each other and / or to the periphery of the temperature control equipment, a) One or more blocking elements, and / or b) One or more airlocks Therefore, it may be advantageous if the separation is possible atmospherically and / or thermally.

[0042] The blocking element may specifically be a physical barrier, such as a sliding door, a vertically movable gate plate, or something similar.

[0043] Furthermore, the shielding element may be at least partially insulated.

[0044] In the open position of the shielding element, the shielding element is advantageously located in a notch, chamber, recess, or temporary position provided for this purpose, above, below, or to the side of the temperature control chamber, and can move from that location into the temperature control chamber for zone isolation.

[0045] The blocking element may consist of one or more parts.

[0046] In the case of a blocking element consisting of multiple parts, the partial elements can move in opposing directions or parallel to each other.

[0047] If the cycle time is sufficiently long, one or more blocking elements are preferably provided between at least two zones. Specifically, the cycle time is the time it takes for a workpiece to be processed within one zone.

[0048] This applies, for example, when the cycle time is longer than or equal to the time required for the opening and closing operation of the shut-off element. It is particularly preferable that the cycle time for workpiece processing is five times longer than the time required for the opening and closing operation of the shut-off element.

[0049] Furthermore, it is advantageous for the airlock to be formed as a fluid-technical barrier to atmospherically and / or thermally separate each of the two zones or process areas of the temperature control equipment.

[0050] Furthermore, it is advantageous if the airlock is formed vertically and in a manner that conforms to the contour of the workpiece.

[0051] Advantageously, the airlock is formed in a double silhouette form that is vertical and contoured to the workpiece.

[0052] Both silhouettes may be the same or different in terms of their temperature and / or the ratio of fresh air to recirculated air.

[0053] Specifically, the airlock is advantageously positioned between two tact spaces, each handling one workpiece.

[0054] The air curtain or silhouette of the airlock advantageously extends across the entire width of the temperature control chamber.

[0055] For example, in a process region with temperature stages, formed as a pre-dryer, a main dryer, or a cooling zone, the airlock is advantageously located between the two temperature regions.

[0056] The airlock may be formed from the ceiling, one or both side walls, or the floor of the temperature control chamber. Specifically, the airlock is introduced into the temperature control chamber from such a location.

[0057] The airlock is directed from slit nozzles located in the ceiling of the temperature control chamber at an angle of 20 to 40 degrees, preferably around 30 degrees, relative to the direction of gravity, towards a hotter atmosphere, i.e., towards an adjacent zone with a higher temperature. Such an airlock thereby creates a pulse against the thermal pressure of the adjacent zone with a higher temperature.

[0058] It is proposed to keep the airlock area clear or release it using a transport-technical high-speed take-up device (Schnellabzug) so that the airlock air jet is not obstructed by the workpiece that is trapped in that location.

[0059] Here, the lock air is introduced into the temperature-controlled chamber, for example, between two thin plates that follow the contour of a workpiece running longitudinally or transversely. Specifically, the lock air flows vertically from top to bottom and is then exited from the temperature-controlled chamber via a floor suction section.

[0060] The air in the airlock flows advantageously downward and can be drawn in, for example, through two floor suction openings, i.e., floor suction slits, which are positioned one behind the other in the transport direction within the floor area of ​​the temperature control chamber, and which extend across the entire width of the temperature control chamber, i.e., through two floor suction openings that extend laterally with respect to the transport direction.

[0061] It is also possible that the trapped air flows in the opposite direction to gravity, from bottom to top, and is then drawn into the ceiling area of ​​the temperature control room.

[0062] However, the lock air can also flow horizontally through the temperature control chamber; that is, the lock air flows into the temperature control chamber from one side wall and is then drawn out or drawn out within the region of the opposite side wall.

[0063] The formed air curtain or air silhouette advantageously extends almost perpendicular to the direction of workpiece transport.

[0064] The airlock can be operated by fresh air, recirculated air, or a mixture of recirculated air and fresh air.

[0065] Furthermore, the airlock may have at least one electrical heating resistor on the upstream side of the temperature control chamber, thereby allowing such heating resistor to be used. a) Bring already preheated lock air (fresh air or circulating air, or a mixture of both) to the target temperature, or b) Bring fresh air from the surrounding area of ​​the hall where the temperature control equipment is installed to the target temperature near the lock.

[0066] This eliminates the need for a large, cumbersome air passage from the central lock air heating unit to the airlock.

[0067] Specifically, fresh air passages may be provided to supply fresh air to the entry-side airlock at the inlet or entry section of the temperature control chamber, and / or the exit-side airlock at the outlet or exit section of the temperature control chamber.

[0068] The fresh air passage is advantageously routed along one side of the temperature control equipment with respect to the conveying direction.

[0069] In such a case of temperature control equipment, the fresh air passage is specifically located above and / or within the pressure chamber and / or above the pressure chamber.

[0070] Advantageously, the fresh air passage is located on the side where the power module's temperature control device is also situated.

[0071] The fresh air passage is advantageously guided through a connecting passage that directs circulating air from the pressure chamber on the side with the temperature control device to the opposite side without the temperature control device.

[0072] Due to the intersection of the connecting passages, the fresh air passage has a reduced cross-sectional area within its section guided through the connecting passages, so that it is still ensured that sufficient circulating air can be guided or directed through the connecting passages to the other side of the temperature control equipment.

[0073] The fresh air guided through the fresh air passage and the circulating air guided through the connecting passage are advantageously separated from each other by fluid action; in other words, the fresh air and circulating air are not mixed in the passage intersection region.

[0074] The connecting passage has a widened or enlarged section in the direction toward the temperature control chamber within the transition section from the pressure chamber, i.e., the pressure chamber where the fresh air passage is located above, and / or therein, and / or above it, to its horizontal section above the temperature control chamber. The widened or enlarged section corresponds to the shape of the cross-sectional reduction of the fresh air passage within such a region and at least substantially compensates for the volume reduction caused by the fresh air passage.

[0075] Alternatively, or in addition to this, the connecting passage may have an incline within such transition section, or, advantageously, extend diagonally at a 45-degree angle to the side wall and / or ceiling wall of the temperature control chamber.

[0076] Furthermore, it may be advantageous for the fresh air passage not to be guided through the connecting passage, but rather to be guided alongside this connecting passage, with a reduction in cross-sectional area.

[0077] Advantageously, the fresh air passage does not extend outward beyond the power module to the side.

[0078] Alternatively, or in addition to this, the fresh air passages do not have to protrude above the height of the power module connection passages.

[0079] Such integration or arrangement of fresh air passages allows passage loads to be diverted through the equipment housing, meaning no additional passage suspension members are required.

[0080] Furthermore, these air passages become part of the module through this integration. This eliminates the need for separate insulation materials.

[0081] Furthermore, at least one compensation device may be provided between each pair of modules to absorb thermal expansion in the transport direction.

[0082] For this purpose, a metal compensator with bellows or a textile compensator may be used, and it may be advantageous if this compensator is welded or screwed between both zones or modules.

[0083] At least one temperature control module and / or at least one power module are supported on at least one fixed base, which may be advantageously located below each of the modules.

[0084] To avoid mechanical overloading of thin plate structures or welded joints, it may be advantageous to provide a fixed base or fixing point to obtain controlled extension behavior of the temperature control equipment module at the operating temperature.

[0085] It may be advantageous if the expansion of individual modules is possible in the transport direction and in the direction laterally to the transport direction.

[0086] The fixing points or bases of modules positioned one behind the other are advantageously oriented along a common line in the transport direction. In the lateral direction, i.e., lateral to the transport direction, the fixing bases of the modules are also advantageously oriented along a common line.

[0087] In the case of power modules, it is advantageous for the fixed base to be located below the ventilator of the temperature control device, and consequently below the area with the greatest surface load.

[0088] In this case, the at least one heating zone includes two temperature control modules and one power module, and the at least one heating zone may optionally include at least two intermediate modules for extending the temperature control chamber.

[0089] Furthermore, the at least one holding zone includes four temperature control modules and one power module, the power module being advantageously positioned in the middle of the at least one holding zone with respect to the transport direction, and optionally the at least one holding zone may include at least two intermediate modules for extending the temperature control chamber.

[0090] The at least one heating zone is in the conveying direction. a) 9m to 12m, 11m is advantageous, or b) 12m to 14m, 13m is advantageous. Having extension is advantageous.

[0091] The at least one holding zone is in the transport direction. a) 20m to 24m, 22m is advantageous, or b) 24m to 28m, 26m is advantageous. Having extension is an additional advantage.

[0092] Furthermore, the temperature control system may also advantageously include a cooling zone that does not have a power module.

[0093] However, each power module can also be used as a cascade ventilator if multiple cooling zones are arranged one behind the other. In such a case, the power module essentially consists of one ventilator and one connecting passage, but does not include a heat source or heat supply unit.

[0094] In cascade ventilation between multiple cooling zones, for example, fresh air is supplied to the pressure chambers of the first cooling zone in the transport direction. This fresh air is transported through these pressure chambers into the temperature control chamber section of the first cooling zone, and from there it is drawn in within the floor area of ​​the corresponding temperature control chamber section by the ventilator of the power module of the first cooling zone. The circulating air drawn in from the first cooling zone is then introduced into the pressure chamber of the second cooling zone located behind in the transport direction, and through these pressure chambers it reaches the temperature control chamber section of the second cooling zone. From this temperature control chamber section, the circulating air is similarly drawn in within the floor area by the ventilator of the power module of the second cooling zone, and supplied to the pressure chamber of the next cooling zone located behind in the transport direction. In this sequence, i.e., from the temperature control chamber of the last cooling zone in the cooling zone cascade complex, a corresponding amount of circulating air is exhausted from the temperature control equipment.

[0095] Furthermore, a pressure chamber may be formed on each side of the temperature control chamber, allowing the circulating air to be introduced into the temperature control chamber through the pressure chamber.

[0096] Each pressure chamber is thus formed laterally to the temperature control chamber as a space that extends at least substantially consistently, by temperature control modules positioned one behind the other.

[0097] It may be advantageous if the at least one temperature control device is located at least partially within one of the pressure chambers.

[0098] By integrating the temperature control device into one of the pressure chambers of the temperature control system, the width of the system can be significantly reduced. The specific components or parts of the temperature control device that are advantageously positioned within the pressure chamber are described in further detail below.

[0099] Furthermore, it is advantageous that the pressure chambers are fluidly connected to each other by the connecting passage and / or the connecting chamber.

[0100] The connecting passage or chamber that guides circulating air to the other pressure chamber may be located on the temperature control module. However, it is also possible to arrange it within or as an intermediate thickness inside the temperature control module.

[0101] It is also possible that the holding zone has only one pressure chamber on the side of the temperature control device, and therefore does not require a connecting passage.

[0102] In a further configuration of the present invention, the at least one temperature control device may protrude beyond the width of the temperature control module, which is advantageously oriented horizontally and vertically with respect to the transport direction, by less than approximately 25%, advantageously 20%, and particularly preferably 10% of the width of the temperature control module.

[0103] Because the temperature control device protrudes only slightly in the width direction of the temperature control module or temperature control equipment, two temperature control units can be arranged side by side within a standard hole grid to realize a double temperature control system or a double dryer.

[0104] Furthermore, at least one temperature control device may include at least one ventilator.

[0105] It is advantageous for the ventilator to be formed as a radial ventilator.

[0106] The ventilator axis is advantageously oriented horizontally and / or vertically with respect to the conveying direction.

[0107] The ventilator is advantageously located in the lower half, specifically the lower third, of the temperature control device or temperature control equipment.

[0108] The low placement of the ventilator allows for easy disassembly.

[0109] The mounting depth of a ventilator is defined by the distance from the side wall of the temperature control chamber to the outer wall of the temperature control device or temperature control equipment. In other words, the mounting depth of a ventilator is defined by the width of the pressure chamber in which the ventilator is installed. In a ventilator, this dimension corresponds to the distance from the ventilator nozzle to the inside of the ventilator's insulated cassette, meaning that the suction nozzle and the ventilator impeller are located within the pressure chamber.

[0110] The ventilator's suction nozzle may be offset rearward from the side wall of the temperature control chamber, i.e., spaced in the width direction of the temperature control module. In such cases, a transition passage element is positioned between the side wall of the temperature control chamber and the frame housing of the suction nozzle. The transition passage element guides the circulating air led out of the temperature control chamber from the side wall of the temperature control chamber into the suction nozzle. Such a transition passage element will also be referred to as the suction chamber below.

[0111] The chambers surrounding the ventilator radially within the pressure chamber form a conditioning chamber for the circulating air flowing from the ventilator. It is conceivable that the conditioning chambers are spatially separated within the corresponding pressure chambers.

[0112] The distance from the lower edge of the ventilator impeller to the floor of such a conditioning room is advantageously 10%, and particularly preferably 75%, of the ventilator impeller diameter.

[0113] In a further configuration of the present invention, the ventilators of the heating zone and the holding zone may be set to at least substantially the same dimensions.

[0114] Given the background of having the same structural form, it may be advantageous to use the same ventilators, specifically the same ventilators, if they are set to the same dimensions within the heating zone and the holding zone.

[0115] Ventilators are advantageously matched to one another in terms of their impeller size, their ventilator chambers, and / or their ventilator flange plates.

[0116] Since different zones in a temperature control system require different air volumes, these zones are operated at different rotational speeds. The rotational speed of the ventilator motors is advantageously controlled and / or adjusted via a frequency converter.

[0117] For example, regarding the ventilator of the temperature control device for the heating zone, the circulating air volume flow rate is 40,000 m³. 3 / h~60,000m 3 / h, preferably 45,000 m 3 The frequency is / h, and the rotational speed is 45Hz to 55Hz, preferably 50Hz.

[0118] In contrast, regarding the ventilator of the temperature control device for the holding zone, for example, the circulating air volume flow is 45,000 m³ 3 / h~70,000m 3 / h, preferably 60,000m 3 The frequency is / h, and the rotational speed is 55Hz to 70Hz, preferably 63Hz.

[0119] To achieve such volumetric flow, different shaft outputs of ventilators are required. Therefore, all motors in the circulating air ventilator can be set to maximum shaft output, or motors of different sizes can be used for ventilators in different zones.

[0120] For example, the motor output for the heating zone is 15kW to 25kW, preferably 18.5kW, and the ventilator motor output for the holding zone is 30kW to 45kW, preferably 37kW.

[0121] Furthermore, it is advantageous that the at least one temperature control device includes at least one temperature control unit, specifically an electrical heating unit, and preferably at least three temperature control units.

[0122] The temperature control unit, like the ventilator, is introduced at least partially into the conditioning chamber surrounding the ventilator through the outer wall of the temperature control device or power module of the temperature control equipment, in both horizontal and vertical directions relative to the conveying direction, and is also fixed to this outer wall by flange coupling. The depth to which the temperature control unit is pushed into the conditioning chamber or pressure chamber is approximately equivalent to the extension in the direction of the depth of the ventilator impeller, i.e., the width of the temperature control equipment or temperature control module.

[0123] In a further configuration of the present invention, each temperature control unit has a plurality of heating elements, which may be arranged at least partially, and preferably at least almost completely, within the same pressure chamber.

[0124] Furthermore, at least one first temperature control unit may be positioned above the ventilator, and at least two second temperature control units may be positioned on opposite sides of the ventilator with respect to a vertical plane parallel to the conveying direction.

[0125] By arranging temperature control units in a cross shape around the ventilator, a uniform air load to these units is achieved. Ideally, the circulating airflow generated radially from the ventilator collides perpendicularly with the temperature control units.

[0126] Advantageously, the midpoint of the second temperature control unit is positioned above the ventilator impeller axis.

[0127] It may be advantageous if the flow cross-section of at least one first temperature control unit corresponds to at least approximately 25%, preferably 50%, and especially preferably 100% of the flow cross-section of the at least two second temperature control units.

[0128] This ensures, at least fairly, that both pressure chambers can be loaded with temperature-controlled circulating air in similar proportions.

[0129] Furthermore, it is advantageous that the at least one first temperature control unit provides at least approximately 25%, preferably 35%, and particularly preferably 50% of the heating output of the temperature control device, and the at least two second temperature control units each provide at least approximately 10%, preferably 15%, and particularly preferably 25% of the heating output of the temperature control device.

[0130] The production output of a power module, that is, the output during production, is, for example, a) For heating zones with two cycles, 100kW to 350kW, b) For the holding zone with four cycles, the range is 50kW to 200kW.

[0131] Therefore, the temperature-controlled circulating air introduced or transported into both pressure chambers reaches similar temperature levels.

[0132] In a further configuration of the present invention, the at least one temperature control device includes a motor, specifically an electric motor, which drives the ventilator, and advantageously, the motor may be located at least substantially entirely outside the temperature control module.

[0133] As a result, for example, the extension of the motor in the width direction of the temperature control equipment or temperature control module determines the overall width of the temperature control equipment.

[0134] Downstream of the ventilator, at least one guide element, specifically a guide plate, may be provided to guide the circulating air to at least one temperature control unit.

[0135] Furthermore, it is advantageous if induction elements are placed within the corner regions of the conditioning chamber, or if the conditioning chamber as a whole is separated from the surrounding pressure chamber by a flow-optimized housing.

[0136] It may be advantageous if the circulating air can be led out from the temperature control room at the floor level.

[0137] Furthermore, the circulating air from the temperature control chamber can be led out of the temperature control chamber by a return passage, and it is advantageous that the return passage is formed at least partially in a funnel shape on the outlet side in order to enlarge the flow cross-section.

[0138] The circulating air return guide or circulating air intake advantageously begins within the region between the two temperature control modules, i.e., between the two workpieces whose temperature is to be controlled. This supports a homogeneous and symmetrical flow directed towards the workpieces.

[0139] Furthermore, it is advantageous if the suction opening or return passage inlet is located between the two strands of the conveying device described later, thereby supporting a symmetrical flow toward the workpiece.

[0140] Circulating air can be advantageously drawn out from the temperature control chamber on either side of the conveying device or on one side of the conveying device.

[0141] Alternatively, or in addition to this, circulating air may be led out of the temperature control chamber centrally with respect to the conveying direction, and / or between two conveying devices positioned one behind the other in the temperature control chamber in the conveying direction.

[0142] By circulating air centrally from the temperature control chamber between two workpieces to be processed, or between two takts, and / or at the height of the power module's temperature control device with respect to the conveying direction, a homogeneous and symmetrical circulating airflow directed towards the workpieces is possible. This is because the circulating air flowing into the temperature control chamber is not redirected in the way that can occur if it is circulated or drawn in near the side walls. On the other hand, any dirt and dust that may occur are drawn in near the floor, thereby ensuring that the processed workpieces are not contaminated by the stirring up of dirt and dust.

[0143] Furthermore, if the exhaust is routed through the center, there is no risk of the door being sucked into the workpiece formed as part of the vehicle body, and potentially being damaged within the temperature-controlled chamber.

[0144] In a further configuration of the present invention, the circulating air may be directed out of the return passage at least partially diagonally upward.

[0145] Furthermore, a suction chamber may be located upstream of the ventilator.

[0146] The suction chamber is preferably formed when the frame housing of the ventilator's suction nozzle is positioned at a distance from the corresponding side wall of the temperature control chamber, and a transition passage element is positioned in the gap accordingly for bridging.

[0147] It may be advantageous if the suction chamber is located between the ventilator and the return passage.

[0148] Furthermore, the return passage may be formed as a suction box.

[0149] To achieve low flow velocities and minimal pressure loss at the suction or discharge points, the suction box advantageously connects a round ventilator suction opening to a cubic suction opening located within the area of ​​the conveying device in a temperature-controlled chamber.

[0150] The suction box specifically includes two molding elements.

[0151] The first molded element is, advantageously, a wedge-shaped box element having a double incline. This box element is adjacent to a round ventilator suction opening.

[0152] The first incline has an angle of approximately 20 degrees with respect to a vertical line that is perpendicular to the conveying direction in the vertical plane.

[0153] Furthermore, the first inclination extends from just above the round ventilator suction opening toward the temperature control chamber, and is positioned at a distance of 10 cm to 20 cm, preferably 15 cm, from the side wall to which it belongs. Specifically, within the upper region, the first inclination is positioned at a sufficient distance, for example, 5 cm to 15 cm, preferably 10 cm, from the side or door of the workpiece formed as the vehicle body. Within the lower region, the first inclination is positioned at a sufficient distance from the workpiece support or skid.

[0154] The second inclination is advantageously angled at 45 degrees with respect to a vertical line located in the vertical plane of the transport technology system direction (Fordertechnikrichtung).

[0155] The second incline widens the box element downwards, both in the direction of the transport technology system and in the direction opposite to the transport technology system. Advantageously, the widening section, which begins at the height of the ventilator axis, widens the box element from, for example, one-third of the power module width to two-thirds of the power module width. The power module width here can be advantageously understood as the spread or extension of the power module in the transport direction.

[0156] The second molded element is, advantageously, a cubic box element provided following the wedge-shaped box element.

[0157] The second molding element preferably extends from the side wall of the temperature control chamber to the conveying device and has approximately the same width as the power module. In terms of height, the second molding element preferably extends from the floor or floor wall of the power module to the lower edge of the workpiece support or skid. On the workpiece support or skid, the workpiece is preferably conveyed through the temperature control chamber.

[0158] Roller conveying equipment, or hybrid conveyors with chains and roller tracks, are particularly suitable for suction boxes because they lack return strands (Leertrum). This is because, in this way, a sufficiently large cross-section for air suction or exhaust is provided below the support profile of the conveying equipment or conveyor, without the need to lift the entire conveying technology system (Fordertechnik) into the temperature-controlled chamber and / or interface area to the external conveying technology system.

[0159] Furthermore, it is advantageous that the connecting passage and / or the connecting chamber has a width determined horizontally and parallel to the conveying direction, and that the width at least substantially corresponds to the extension of the ventilator or the first temperature control unit in the conveying direction.

[0160] This results in, on the one hand, a uniform flow through or via the heating element of the first temperature control unit, and on the other hand, a uniform flow guidance of circulating air from one side of the temperature control equipment to the other.

[0161] Induction elements are provided within the deflection region when transitioning from one pressure chamber to a connecting passage, and from the connecting passage to the other pressure chamber. It is advantageous that these induction elements prevent or at least minimize flow separation or backflow when switching between vertical and horizontal flow.

[0162] Furthermore, the workpiece may be transported through the temperature control chamber by a transport device.

[0163] In one configuration of the present invention, the at least one conveying device may have at least one section with a gradient.

[0164] After the temperature control module and power module are connected to each other, the conveying device is advantageously inserted or incorporated into the temperature control equipment for the first time. The conveying device advantageously extends through all connected modules.

[0165] If the temperature-controlled chamber is long, the conveying device may be segmented, that is, it may consist of multiple separate sections or strands. Each of these sections or strands has a separate drive unit and, for example, a separate tensioning station.

[0166] The conveying system enables tactile transport of workpieces. During tactile transport, the workpieces are optimally oriented relative to the circulating air introduced into the temperature-controlled chamber.

[0167] In other words, the conveying device enables the transport of workpieces from takt space to takt space in the conveying direction.

[0168] Between the two tacts, that is, when further transport is performed from one temperature control module to a subsequent temperature control module in the transport direction, each workpiece passes through the temperature control device of the power module, which is located laterally, as long as the temperature control module is directly adjacent to or connected to the power module.

[0169] The conveying device preferably includes at least two conveying devices or conveying strands, these conveying devices or conveying strands oriented at least substantially parallel to each other and parallel to the conveying direction.

[0170] The conveying system is advantageously configured such that the return passage is guided through the conveying equipment below the conveying equipment, and the conveying equipment is positioned closer to the temperature control device or ventilator.

[0171] Furthermore, it may be advantageous if the conveying device includes chain conveying equipment and / or roller conveying equipment.

[0172] Furthermore, it may be advantageous if at least one of the transport devices is walkable.

[0173] It would be advantageous if chain conveying equipment and / or roller conveying equipment were provided within the heating zone and / or holding zone, and if roller conveying equipment could be provided within the cooling zone.

[0174] For example, one conveying device may be provided for each zone or module. However, it is also conceivable that the conveying device could transport the workpiece through at least two zones or modules.

[0175] Specifically, when two adjacent zones are atmospherically and / or thermally separated by one or more isolation elements, one conveying device is positioned upstream and one downstream of the isolation element with respect to the conveying direction.

[0176] The conveying device is interrupted within the region of the blocking element, and when the blocking element is in the open position, a transfer occurs from the upstream conveying device to the downstream conveying device.

[0177] Alternatively, a hybrid conveying system may be provided, which is formed as a roller track with a consistently extending conveyor chain. This eliminates the need to change the conveying system, specifically the chain, between two zones or modules. This is specifically possible if atmospheric and / or thermal separation between the zones is achieved by one or more airlocks.

[0178] The nearly vertical air curtain is advantageously formed between two tact spaces or workpieces being processed, thus eliminating the need to release the airlock area.

[0179] To achieve circulating air discharge from the temperature control chamber or circulating air return suction between both strands of the conveying device, it is advantageous that the required conveying device height is achieved by guiding the conveying device chain and / or conveying device rollers along ramps in the area of ​​entry into or out of the temperature control chamber, and in the area of ​​exit from the temperature control chamber, respectively, in cases where there is insufficient free cross-sectional area below the conveying device or conveying technology system.

[0180] This type of inclined travel eliminates the need for large, cumbersome lifting stations located at the interface to preceding and succeeding conveying devices or conveying technology systems.

[0181] Since one side of the pressure chamber is interrupted by a temperature control device, and therefore such a pressure chamber cannot be walked through without obstruction in the transport direction for maintenance or adjustment work, a pressure chamber door is provided within the housing wall and / or within the side wall of the temperature control chamber.

[0182] In the latter case, it is advantageous that the transport device is walkable inside the temperature-controlled chamber. This can be achieved, for example, by shielding plates and / or grids.

[0183] If the temperature-controlled chamber is long, the conveying device may be segmented, that is, it may consist of multiple separate sections or strands. Each of these sections or strands has a separate drive unit and, for example, a separate tensioning station.

[0184] The conveying device enables tactile transport of workpieces. During tactile transport, the workpiece is optimally oriented relative to the circulating air introduced into the temperature-controlled chamber. In other words, the conveying device allows workpieces to be transported from tact space to tact space in the transport direction.

[0185] The conveying device advantageously includes at least two conveying strands. The conveying strands are at least substantially parallel to each other and oriented parallel to the conveying direction.

[0186] The conveying device is advantageously configured such that the return passage is guided through the lower part of the conveying strand, and the conveying strand is positioned closer to the temperature control device or ventilator.

[0187] By providing two different conveying devices, the conveying system as a whole is asymmetrical, and it should be prioritized that the roller conveying device be positioned closer to the temperature control device or ventilator. This is because the roller conveying device has a flatter structural height because it does not have a chain return strand (Kettenleertrum). The return passage can therefore be guided through below the roller conveying device.

[0188] The inlet of the circulating air intake or circulating air return section, i.e., the inlet of the return passage, is advantageously located between the roller conveying equipment and the chain conveying equipment. Such an inlet is preferably located at the height of the temperature control device with respect to the conveying direction.

[0189] Furthermore, for low-friction and-wear transport, chain transport equipment has a so-called trolley. The trolley absorbs the normal force during workpiece transport, while the tensile force is transmitted through the chain of the transport equipment.

[0190] a) Between the at least one conveying device and at least one side wall of the temperature control chamber, preferably on the floor side on both sides of the conveying device and / or b) Between each of the two conveying devices positioned front to back in the conveying direction, preferably on the floor side, and / or c) In the temperature control chamber above the workpiece or in the temperature control chamber, It may be advantageous to include a nozzle or to have one or more additional inlet openings formed as such nozzles.

[0191] The additional inlet opening between the side wall and the conveying device may include, or be formed as, a sill nozzle (SchwellerdUsen) or floor nozzle for the sill of the workpiece formed as the vehicle body.

[0192] Furthermore, floor nozzles may be positioned between the two strands of the conveying technology system. Circulating air is supplied via the alternating loads of opposing pressure chambers.

[0193] In the case of a conveyor system with conveyor chains on one or both sides, a notch or recess may be required in the floor area below the conveyor chain for a floor nozzle.

[0194] Alternatively, it may be necessary to raise the height of the conveying device.

[0195] An additional inlet opening or nozzle within the ceiling or ceiling area of ​​the temperature control chamber is advantageous for introducing circulating air from the connecting passage between pressure chambers into the temperature control chamber.

[0196] Nozzles for introducing temperature-controlled circulating air are installed within the ceiling area of ​​the temperature control chamber. These nozzles may be advantageous in directing or guiding such air toward the windshield and / or rear window openings of the workpiece formed as the vehicle body.

[0197] Advantageously, the circulating air flows from such nozzles toward the openings of the windshield and / or rear window at an angle of approximately 45 degrees to the vertical.

[0198] Furthermore, a so-called sandwich-decke may be placed below the ceiling of the temperature control room. The sandwich-decke allows for the free placement of additional inlet openings or nozzles above the workpiece being processed.

[0199] In the configuration of the present invention, at least one additional temperature control unit may be located upstream of the additional inlet opening.

[0200] An additional temperature control unit, located upstream of the additional inflow opening within the floor area, can accelerate the heating behavior of large workpiece areas of the vehicle body being processed, such as the sill or a predetermined floor structure.

[0201] Furthermore, it is advantageous if the temperature control chamber has two side walls, which are oriented at least substantially toward each other and parallel to the transport direction, and the side walls of the temperature control chamber have a plurality of inlet openings, through which the circulating air can be introduced from the pressure chamber into the temperature control chamber.

[0202] In one configuration of the present invention, the inlet opening may include a nozzle or be formed as a nozzle.

[0203] The shape, size, and spacing between the inlet openings and / or the distance to the edges of the side walls can be adapted to suit the temperature-controlled workpiece.

[0204] Advantageously, the nozzle can be directed towards a predetermined area of ​​the workpiece.

[0205] Specifically, the nozzles are movable and, consequently, individually oriented.

[0206] For example, the nozzle has an outlet diameter or flow cross-section of 100 mm and can be rotated towards the chamber by a maximum of 15 degrees with respect to the nozzle's main axis or an axis perpendicular to each side wall of the temperature control chamber.

[0207] The nozzle may also be formed as an inclined nozzle having a fixed angle of, for example, 25 degrees. The inclination position is specifically based on the plane of each side wall of the temperature control chamber.

[0208] The nozzles may also be arranged in groups along each side wall of the temperature control chamber.

[0209] For example, four inclined nozzles can form a nozzle group or nozzle device. This nozzle group or nozzle device is oriented towards a predetermined area of ​​the workpiece to be processed.

[0210] The nozzles in such a group can have the same or different angles.

[0211] The inclined nozzle group allows for the achievement of nearly identical jet or flow characteristics to those of a movable nozzle without a significant increase in length in the axial direction, i.e., perpendicular to the side wall towards the temperature control chamber. Therefore, widening of the corresponding pressure chamber is not necessary.

[0212] The nozzles on the opposing side walls of a single tact or zone are advantageously positioned such that, for example, when the vehicle body is formed as the workpiece to be processed, the jet or flow equalization does not occur inside the vehicle body.

[0213] In this regard, the tact-type operation of temperature control equipment is advantageous. This is because, with such a tact-type operation, individual areas of the workpiece formed as a vehicle body can be loaded with temperature-controlled circulating air within a time tact, targeting specific areas within the workpiece's temporary resting or idle time.

[0214] The inlet opening may have the same or different flow cross-sections.

[0215] In addition to the inlet openings provided in the side walls of the temperature control chamber, a nozzle device for the sill region of the workpiece formed as the vehicle body may be positioned, for example, between the conveying device and the side wall within the floor area of ​​the temperature control chamber, in order to direct the temperature-controlled circulating airflow to the sill region of the vehicle body.

[0216] In addition, further floor nozzles may be positioned between the roller conveying equipment and the chain conveying equipment to direct temperature-controlled circulating airflow to the floor area and / or interior area of ​​the vehicle body.

[0217] As mentioned above, a conditioning chamber is advantageously formed at the rear of the ventilator, i.e., downstream of the ventilator. The conditioning chamber includes the recessed portion of the ventilator and temperature control unit.

[0218] The conditioning room advantageously divides its own or surrounding pressure chambers into two sections. These sections are located in front of and behind the conditioning room in terms of the transport direction.

[0219] The conditioning chamber serves as a circulating air distribution chamber. Circulating air is supplied to the temperature control unit via the circulating air distribution chamber, and then further guided into the pressure chamber via the temperature control unit.

[0220] In addition, an undercut room may be located between the conditioning room and the corresponding side wall of the temperature control room.

[0221] Such an undercut chamber has an additional inlet opening or nozzle, which can be used to load the front and / or rear portions of a workpiece formed as a vehicle body, which has been brought into the temperature control chamber for temperature control, with circulating air. The inlet opening of the undercut chamber thus directs the circulating air to the front portion of the workpiece with respect to its longitudinal extension, i.e., the front portion located in the rear temperature control module in the transport direction, and to the rear portion of the workpiece located in the front temperature control module in the transport direction.

[0222] The undercut chamber is advantageously spatially separated from the conditioning chamber in the width direction of the temperature control equipment, and filtered circulating air is supplied to or loaded into the undercut chamber, for example, from adjacent pressure chamber sections.

[0223] The inlet opening or nozzle of the undercut chamber is advantageously formed as a nozzle cassette, which is accessible and can be fixed from the temperature control chamber via a fixing element, such as a turnbuckle (Vorreiber).

[0224] If an undercut chamber is provided, the ventilator's suction nozzle is shifted to the rear, and a transition passage element is required to form the suction chamber.

[0225] In a further configuration of the present invention, a plurality of filter elements for filtering the circulating air to be introduced into the temperature control chamber may be arranged upstream of the inlet opening.

[0226] Furthermore, it may be advantageous that at least one pressure chamber is accessible for maintenance and / or adjustment work via at least one pressure chamber door.

[0227] Because the power module's temperature control device is located at least partially on one side of the pressure chamber, this pressure chamber is partially interrupted and therefore cannot be used as a through-passage. One or more pressure chamber doors located on one end face of the temperature control equipment are therefore insufficient to access all inlet openings and / or filter elements.

[0228] Therefore, it may be advantageous if the pressure chamber door is located within the side wall of the temperature control chamber or within the housing wall of the equipment housing.

[0229] Advantageously, each pressure chamber is accessible via at least one pressure chamber door.

[0230] For internally located pressure chamber doors, i.e., doors located within the side walls of the temperature control chamber, access to the pressure chamber may be configured such that, for example, no inflow openings are provided within the side walls belonging to each pressure chamber door's area or section; that is, the arrangement of inflow openings or nozzles within the side walls belonging to each pressure chamber is interrupted in such areas by a compacted door leading to the pressure chamber located behind it as viewed from the temperature control chamber.

[0231] However, alternatively, access via an internally located pressure chamber door may be configured such that the arrangement of inlet openings or nozzles within the side walls is not interrupted during the operation of the equipment.

[0232] For this purpose, for example, the nozzle cassette or nozzle panel is detachably positioned on the side of the pressure chamber door facing the temperature control chamber.

[0233] The nozzle panel can be advantageously secured by turnbuckles to the sidewall surrounding the pressure chamber door in a detachable manner and removed for access to the covered pressure chamber door.

[0234] The pressure chamber door itself has one or more filter elements, which are, for example, incorporated into the pressure chamber door or positioned on the side facing the temperature control chamber. This allows the filter elements to rotate from their operating position when the pressure chamber door is opened.

[0235] Externally located pressure chamber doors, i.e., doors within the housing walls of equipment housings, are advantageously consolidated and insulated.

[0236] If the pressure chamber is formed to be too narrow to walk through, it is advantageous that openings are provided in the side walls of the temperature control chamber, through which the filter elements can be guided through the temperature control chamber in one orientation, thereby the filter elements are then detachably fixed in their orientations for operation to the opposite side of each side wall of the temperature control chamber from the temperature control chamber.

[0237] The filter element is preferably fastened to each side wall of the temperature control chamber. A seal is preferably provided between the filter element and the support area of ​​the side wall. The sealing action of the seal is enhanced by the compression pressure resulting from the fastening to the side wall and / or by the circulating airflow applied during operation.

[0238] The assembly openings in the side walls, provided for fixing the filter elements, are advantageously covered by each filter element on the opposite side from the temperature control chamber in their operating or filtering positions. Therefore, the circulating air reaches each opening by passing through the filter elements, or at least almost exclusively, and does not pass alongside the filter elements.

[0239] A nozzle panel or nozzle cassette is preferably fitted over such an assembly opening as an inlet opening device, from the direction of the temperature control chamber. Such a nozzle panel is preferably detachably fixed to the side wall belonging to the temperature control chamber by turnbuckles.

[0240] As a result, the nozzle panel has, for example, an annular V-shaped edge bend so that as little, or at least almost no, circulating air can pass alongside the nozzle panel and flow into the temperature control chamber. This edge bend is oriented away from the temperature control chamber when inserted into the side wall.

[0241] In addition, the corresponding opening in the side wall of the temperature control chamber has a corresponding annular V-shaped receiving portion. The V-shaped edge bend of the nozzle panel can engage with this receiving portion.

[0242] As a result, most of the circulating air flowing from the pressure chamber towards the nozzle panel is trapped within the edge region of the nozzle panel, and does not flow into the temperature control chamber by passing alongside this edge region.

[0243] A seal and / or sealing lubricant is appropriately formed between the receiving portion of the opening and the bent edge portion of the nozzle panel, or may be applied to at least one of the contact surfaces.

[0244] In the case of pressure chambers whose width is reduced, i.e., reduced perpendicular to the transport direction, unwanted heat absorption by the temperature control unit may occur within each pressure chamber. Therefore, to avoid localized overheating of the circulating air guided through the pressure chambers, it may be advantageous if the temperature control unit is insulated at least partially in the direction of the inlet opening.

[0245] Advantageously, within the power module, the area between the temperature control unit and the ventilator is insulated on one side, and the temperature control chamber is insulated on the other.

[0246] Specifically, the undercut chamber area is insulated to prevent the circulating air leading to the undercut chamber nozzle from being overheated by one or more temperature control units of the power module.

[0247] In the case of a narrow temperature control module, specifically a pressure chamber that cannot be walked through, the power module protrudes beyond the temperature control module on both sides in the width direction, that is, laterally relative to the transport direction.

[0248] Combined with the fact that the temperature control device is located within the power module, the temperature control module is advantageously sized and formed so that each temperature control module can be transported as a flat pack in an open-top container for sea transport without the need for a transport device. To this end, one temperature control module can be disassembled into two parts, which is done by folding or rotating the module so that the module ceiling is in contact with one of the two pressure chambers and the module floor is in contact with the other pressure chamber. The widths of these two pack pieces are advantageously smaller than or equal to the maximum internal width of the open-top container.

[0249] In one configuration of the present invention, an inlet opening or nozzle can be provided within the region of the side wall of a temperature control chamber. Within these regions, for space reasons, it is not possible to install a filter element upstream of such an inlet opening, such as within the region of a ventilator or within the region of a pressure chamber door located within the housing wall of an equipment housing. In this case, filtered circulating air is supplied to such an unfiltered inlet opening from at least one of the adjacent pressure chambers or pressure chamber sections.

[0250] In one configuration of the present invention, all pressure chambers are accessible for maintenance and / or adjustment work via two pressure chamber doors for each temperature control device, the pressure chamber doors being located in front of and behind the temperature control device with respect to the transport direction.

[0251] This makes all areas of a single pressure chamber accessible, even when the temperature control device is located at least partially within one of the pressure chambers. Advantageously, no filter elements are provided within the power module area.

[0252] Furthermore, to detect and / or monitor the circulating air temperature, at least one temperature sensor may be located within the temperature control equipment, preferably in the temperature control chamber and / or pressure chamber.

[0253] The problems of the present invention are further solved by a method for controlling the temperature of a workpiece within a temperature control facility, specifically for heating a vehicle body.

[0254] The method advantageously has one or more of the features and / or advantages described in relation to the temperature control equipment. Furthermore, the temperature control equipment advantageously has one or more of the features and / or advantages described in relation to the method.

[0255] The method according to the present invention consists of the following steps, namely - The temperature of the circulating air is controlled by at least one temperature control unit, preferably at least three temperature control units, of the at least one temperature control device, wherein the temperature control unit is at least partially located in the first pressure chamber of the temperature control equipment. - Temperature-controlled circulating air is introduced into the temperature control chamber of the temperature control equipment via a first pressure chamber located on one side of the temperature control chamber and a second pressure chamber located on the other side of the temperature control chamber and fluidly connected to the first pressure chamber. - The temperature of the workpieces transported through the temperature control chamber is controlled, - The circulating air is drawn from the temperature control chamber by the ventilator of the temperature control device, and the ventilator is at least partially located in the first pressure chamber, and - The circulating air is supplied to at least one temperature control unit, and preferably to at least three temperature control units. Includes the process.

[0256] Further advantageous features and / or advantages of the present invention are the subject of the following description of embodiments and drawings. [Brief explanation of the drawing]

[0257] [Figure 1] Figure 1 is a schematic perspective view showing one embodiment of a temperature control system according to the present invention. [Figure 2] Figure 2 is a schematic perspective view showing an embodiment of Figure 1. [Figure 3] Figure 3 is a schematic horizontal cross-sectional view showing the embodiment of Figure 1. [Figure 4] Figure 4 is a schematic vertical cross-sectional view showing an embodiment of Figure 1. [Figure 5] Figure 5 is a schematic diagram showing a first embodiment of the heating zone. [Figure 6] Figure 6 is a schematic diagram showing a second embodiment of the heating zone. [Figure 7] Figure 7 is a schematic diagram showing a first embodiment of the retention zone. [Figure 8] Figure 8 is a schematic diagram showing a second embodiment of the retention zone. [Modes for carrying out the invention]

[0258] Elements that are the same or function similarly are given the same reference numeral in all drawings.

[0259] Overall, the embodiment of the temperature control equipment, indicated by reference numeral 100, shown in Figures 1 and 2, is useful for controlling the temperature of a workpiece (not shown).

[0260] The temperature control equipment 100 is specifically equipment for heating the vehicle body (not shown).

[0261] The workpiece is transported within the temperature-controlled equipment 100 along the transport direction 102.

[0262] Advantageously, the workpieces formed as vehicle bodies are transported along their longitudinal direction through the temperature control equipment 100 along the transport direction 102.

[0263] The temperature control equipment 100 includes at least two temperature control modules 104 arranged one behind the other in the transport direction 102, and at least one power module 105 positioned between the two temperature control modules 102 to connect these temperature control modules to each other.

[0264] The temperature control module 104 and the power module 105 together form a continuously extending temperature control chamber 106. Workpieces can be loaded into the temperature control chamber 106, transported through the temperature control chamber 106, and then removed from the temperature control chamber 106.

[0265] The temperature control module 104 further forms a pressure chamber 108 on each side of the temperature control chamber 106. Circulating air can be introduced into the temperature control chamber 106 through these pressure chambers 108.

[0266] The pressure chambers 108 are fluidically connected to each other by the connection passage 110 of the power module 105, or by the connection chamber of the power module 105.

[0267] The connecting passage 110 may be located on one or both of the temperature control modules 104 as a crossover passage. However, the connecting passage 110 may also be formed as an intermediate ceiling inside one of the power module 105 and / or the temperature control module 104.

[0268] The connecting passage 110 is advantageously located in the middle of the temperature control chamber 106 with respect to the transport direction 102.

[0269] The power module 105 further includes a temperature control device 114. The temperature control device can control the temperature of at least a portion of the circulating air guided through the temperature control chamber 106, that is, it can be heated and / or cooled.

[0270] The temperature control device 114 is arranged on one side of the temperature control chamber 106, that is, the temperature control device 114 is arranged asymmetrically.

[0271] Laterally integrating the temperature control device 114 into the power module 105, that is, arranging the temperature control device 114 at least partially on one side of the pressure chamber 108, enables a particularly compact structural configuration of the temperature control facility 100.

[0272] The temperature control device 114 is used for circulating and temperature-controlling the circulating air conveyed through the temperature control chamber 106.

[0273] A plurality of inflow openings 118 are provided on both side walls 116 of the temperature control chamber 106. Circulating air is introduced into the temperature control chamber 106 through the inflow openings.

[0274] The inflow openings 118 may have different and / or the same shapes and dimensions.

[0275] The shape, dimensions, mutual spacing and / or spacing to the edge of the side wall 116 of the inflow openings 118 can be adapted to the workpiece to be temperature-controlled.

[0276] A conveying device 120 is arranged in the floor area of the temperature control chamber 106. The conveying device conveys workpieces through the temperature control chamber 106.

[0277] The temperature control device 114 includes a ventilator 122 (shown in FIG. 4). The ventilator is driven by a motor 124.

[0278] The motor 124 is advantageously configured as an electric motor 125.

[0279] The motor 124 is at least partially arranged outside the two temperature control modules 104.

[0280] The motor 124 of the temperature control device 124 protrudes beyond the temperature control module 104 in the direction of the width 126 of the temperature control module 104 or the temperature control facility 100. The width 126 of the temperature control module 104 or the temperature control facility 100 is advantageously oriented horizontally and in a direction perpendicular to the conveying direction 102.

[0281] The motor 124 protrudes beyond the width 126 of the temperature control module 104 by less than approximately 25%, advantageously 20%, and particularly preferably 10%, of the width 126 of said temperature control module 104, so that the temperature control facility 100 is formed in a space-saving manner in the direction of the width 126.

[0282] The temperature control device 114 further comprises one first temperature control unit 128 and two second temperature control units 130. The temperature control units 128, 130 are advantageously formed as electrical heating units 131.

[0283] The first temperature control unit 128 is arranged above the ventilator 122, and the second temperature control units 130 are arranged laterally of the ventilator 122.

[0284] With respect to a vertical plane oriented perpendicular to the conveying direction 102 and extending through the center of the temperature control device 114, both second temperature control units 130 are advantageously arranged in mirror symmetry.

[0285] The first temperature control unit 128 provides at least approximately 25%, advantageously 35%, and particularly preferably 50%, of the heating output of the temperature control device 114, and the two second temperature control units 130 each provide at least approximately 10%, advantageously 15%, and particularly preferably 25%, of the heating output of the temperature control device 114.

[0286] The flow cross-section of the first temperature control unit 128 corresponds to at least approximately 25%, advantageously 50%, and particularly preferably 100%, of the sum of the flow cross-sections of the two second temperature control units 130.

[0287] Since the connecting passage 110 is advantageously approximately the same width as the first temperature control unit 128 in the transport direction 102, the circulating air whose temperature is controlled by the first temperature control unit 128 can be guided to the other side of the temperature control chamber 106 without any change in the flow cross-section.

[0288] Figure 3 shows schematic horizontal and vertical cross-sectional views of the embodiments shown in Figures 1 and 2.

[0289] As can be seen in the cutout-like shape in this vertical cross-sectional view, a conveying device 120 is arranged on the floor side of the temperature control chamber 106, and the conveying device may include or be formed as a chain conveying device 132 and a roller conveying device 134.

[0290] The roller conveying device 134 is located on the side of the conveying device 120 that is closer to or facing the temperature control device 114 or the ventilator 122. Therefore, the chain conveying device 132 is located on the side of the conveying device 120 that is further away from the temperature control device 114 or the ventilator 122.

[0291] Circulating air is discharged from the temperature control chamber 106 via a return passage 136. The return passage inlet 137 is located in the middle between the temperature control modules 104.

[0292] The return passage 136 is advantageously located on the floor side and is advantageously guided through the underside of the roller conveying equipment 134.

[0293] The return passage 136 includes an outlet section 138. The outlet section connects the return passage 136 to the pressure chamber 108. A temperature control device 114 is incorporated inside the pressure chamber.

[0294] The flow cross-section of the outlet section 138 of the return passage 136 expands towards the temperature control device 114, and advantageously becomes at least approximately the inlet flow cross-section of the ventilator 122. This achieves an improved flow directed towards the ventilator 122.

[0295] Further inside the pressure chamber 108, a filter element 140 is positioned upstream of the inlet opening 118. The filter element filters the circulating air before it is introduced into the temperature control chamber 106.

[0296] Each of the temperature control units 128 and 130 has multiple heating elements 142. The heating elements are advantageously located almost entirely within the corresponding pressure chambers 108.

[0297] As can be further seen from Figure 4, which shows a schematic vertical cross-sectional view of an embodiment of the temperature control equipment 100 according to the present invention, a suction chamber 144 is advantageously located upstream of the ventilator 122, which is formed as a radial ventilator 143. The suction chamber is provided following the outlet section 138 of the return passage 136.

[0298] The suction chamber 144 is formed by a transition passage element 145, because the ventilator 122 is shifted backward in the direction of width 126. This transition passage element 145 is connected to the suction nozzle 146 of the ventilator 122.

[0299] Furthermore, as is clear from the cross-sectional view, the output electronic devices 147 of the temperature control units 128 and 130 are located at least almost entirely outside the temperature control module 104. This facilitates access to the output electronic devices 147 during maintenance work or similar procedures.

[0300] Figure 4 further suggests the annular guidance of circulating air through the temperature control equipment 100.

[0301] From the conditioning chamber 148 surrounding the ventilator 122, the circulating air is guided alongside the heating element 142 of the temperature control units 128,130. As it passes through the heating element 142 of the temperature control units 128,130, the circulating air is temperature-controlled and, advantageously, heated.

[0302] A part of the circulating air, preferably approximately 50% of the circulating air, is then conveyed into the pressure chamber 108 in which the temperature control facility 114 is at least partially integrated, while another part of the circulating air, preferably approximately 50% of the circulating air, is conveyed via the connecting passage 110 into the pressure chamber 108 arranged on the other side of the temperature control chamber 106.

[0303] From the pressure chamber 108, after being filtered in the filter element 140, the circulating air is introduced into the temperature control chamber 106 via the inflow opening 118 arranged in the side wall 116 of the temperature control chamber 106, whereby the workpieces conveyed at that location through the temperature control chamber 10 along the conveying direction 102 are temperature-controlled.

[0304] From the temperature control chamber 106, the circulating air is sucked by the ventilator 122 via the return passage 136, and the sucked circulating air reaches the outlet section 138 of the return passage 136 via the return passage 136.

[0305] From the outlet section 138, the circulating air is guided into the suction chamber 144, from where it is directly sucked by the ventilator 122, and subsequently returned radially into the conditioning chamber 148, so that it is newly temperature-controlled by the temperature control units 128, 130, and then returned into the temperature control chamber 106 again.

[0306] FIG. 5 schematically shows a first embodiment of the heating zone 150 of the temperature control facility 100. This first embodiment is advantageously configured for workpieces formed as vehicle bodies having a length of up to 5 m.

[0307] The schematic heating zone 150 comprises two tact spaces 152. On each tact space, the vehicle body is temporarily positioned or stays for temperature control with circulating air before being conveyed in the conveying direction 102 to the next tact space 152 or the next zone of the temperature control facility 100, respectively.

[0308] A single tact space for a vehicle up to 5m in length advantageously has an extension of 5.5m in the transport direction 102. As a result, the total length extension of the heating zone 150 shown in Figure 5 is 11m.

[0309] Figure 6 schematically shows a second embodiment of the heating zone 150. This second embodiment is configured for longer workpieces, specifically vehicle bodies up to 6 m in length.

[0310] To achieve a sufficiently long cycle space 152 so that the power module 105 and the adjacent temperature control module 104 for longer vehicle bodies do not need to be modified for longer vehicle bodies, one intermediate module 154 is joined to the beginning and end of the heating zone 150 with respect to the conveying device 102, respectively.

[0311] One intermediate module 154 for the heating zone 150 advantageously has a longitudinal extension of 1 m.

[0312] Thus, the cycle space 152 gains an extension of 6.5 m in each direction of transport 102, and the heating zone 150 is expanded to a total length extension of 13 m in the lateral direction.

[0313] Figure 7 schematically shows a first embodiment of the retaining zone 156. This first embodiment is specifically configured for vehicle bodies up to 5 m in length.

[0314] The holding zone 156 advantageously includes four temperature control modules 104 and one power module 105.

[0315] Each of the two outer temperature control modules 104 provides one cycle space 152, while the temperature control modules 104 adjacent to the power module 105 each provide one cycle space 152 together with the power module 105.

[0316] Therefore, the extension of both outer temperature control modules 104 in the transport direction 102 is 5.5 m each, and the extension of both inner temperature control modules 104 in the transport direction 102, together with the power module 105, is 11 m. As a result, the total longitudinal extension of the holding zone 156 shown in Figure 7 is 22 m.

[0317] Figure 8 schematically shows a second embodiment of the holding zone 156, comparable to the second embodiment of the heating zone 150 corresponding to Figure 6.

[0318] A second embodiment of the holding zone 156 of the temperature control equipment 100 is specifically configured for a vehicle body up to 6 m in length.

[0319] To expand the tact space 152, an intermediate module 154 is joined to the beginning and end of the holding zone 156 with respect to the conveying device 102, respectively. The intermediate module 154 for the holding zone 156 advantageously has an extension of 2 m in the conveying direction 102.

[0320] This results in a tact space 152 with an extension of 6.5m in the transport direction 102. Thus, the second embodiment of the holding zone 156 for a vehicle body up to 6m has a total extension of 26m in the transport direction 102.

[0321] As can be seen from the first and second embodiments of the heating zone 150 or holding zone 156 corresponding to Figures 5-8, the temperature control equipment 100 can be advantageously adjusted so that two temperature control modules 104, or two temperature control modules 104 and one power module 105, do not exceed a length of 11 m, thereby allowing such module combinations to be transported advantageously using 40' flat racks, 40' open-top containers, or 40' high-cube containers.

[0322] 100 Temperature control equipment 102 Conveying direction 104 Temperature control module 105 Power Module 106 Temperature Control Room 108 Pressure Chamber 110 Connecting passage 114 Temperature control device 116 Side wall 118 Inflow opening 120 Conveying device 122 Ventilator 124 Motor 125 Electric Motor 126 width 128 First Temperature Control Unit 130 Second Temperature Control Unit 131 Electric heating unit 132 Chain conveying equipment 134 Roller conveying equipment 136 Return passage 137 Return passage entrance 138 Exit section 140 filter elements 142 Heating element 143 Radial Ventilator 144 Suction chamber 145 Transition passage element 146 Suction nozzle 147 Output Electronic Devices 148 Conditioning Room 150 heating zones 152 Tact Space 154 Intermediate Module 156 retention zones

Claims

1. A temperature control device (100) for controlling the temperature of a workpiece, specifically for heating the vehicle body, wherein the temperature control device (100) is as follows: - At least two temperature control modules (104) are arranged one behind the other in the transport direction (102), - At least one power module (105) for circulating air and controlling its temperature, positioned at least partially between the at least two temperature control modules (104), Includes, A temperature control system (100) comprising at least two temperature control modules (104) and at least one power module (105) forming a temperature control chamber (106), through which the workpiece can be transported along the transport direction (102) to control its temperature using circulating air.

2. The temperature control equipment (100) according to claim 1, characterized in that the temperature control equipment (100) has at least one equipment housing, the equipment housing partitions the temperature control module (104) and / or the power module (105) from the surroundings of the temperature control equipment (100), or surrounds the temperature control module (104) and / or the power module (105).

3. The temperature control equipment (100) according to claim 1 or 2, characterized in that the at least one power module (105) includes at least one temperature control device (114).

4. The temperature control equipment (100) according to claim 3, wherein the at least one temperature control device (114) is located to the side of the temperature control chamber (106) with respect to the transport direction, and advantageously, the at least one temperature control device (114) is located in a region substantially in the middle of the temperature control chamber (106) with respect to the transport direction (102).

5. The temperature control equipment (100) according to any one of claims 1 to 4, characterized in that the at least one power module (105) includes a connection passage (110) and / or a connection chamber.

6. The temperature control equipment (100) according to any one of claims 1 to 5, characterized in that the power module (105) and the temperature control module (104) directly connected to the power module (105) advantageously form two tact spaces (152) for two workpieces, and each of the tact spaces (152) at least partially protrudes into the power module (105) with respect to the transport direction (102).

7. The temperature control equipment (100) according to any one of claims 1 to 6, characterized in that the temperature control equipment (100) has at least two zones of different temperatures along the transport direction (102).

8. The temperature control equipment (100) according to any one of claims 1 to 7, characterized in that the temperature control equipment (100) has at least one heating zone (156) and / or at least one holding zone (156).

9. The zones are relative to each other and / or to the periphery of the temperature control equipment (100), a) One or more shielding elements, and / or b) One or more airlocks, The temperature control equipment (100) according to claim 7 or 8, characterized in that it can be separated atmospherically and / or thermally by means of the following.

10. A temperature control system (100) according to any one of claims 1 to 9, characterized in that at least one compensation device for absorbing thermal expansion in the transport direction is provided between each of two modules (104, 105).

11. A temperature control system (100) according to any one of claims 1 to 10, characterized in that at least one temperature control module (104) and / or at least one power module (105) are supported on at least one fixed base, the fixed base being preferably located below each of the modules (104, 105).

12. The temperature control equipment (100) according to any one of claims 8 to 11, characterized in that the at least one heating zone (150) includes two temperature control modules (104) and one power module (105), and the at least one heating zone (150) optionally includes at least two intermediate modules (154) for extending the temperature control chamber (106).

13. A temperature control system (100) according to any one of claims 8 to 12, wherein the at least one holding zone (156) includes four temperature control modules (104) and one power module (105), the power module being advantageously located in the middle of the at least one holding zone (156) with respect to the transport direction (102), and optionally the at least one holding zone (156) includes at least two intermediate modules (154) for extending the temperature control chamber (106).

14. The at least one heating zone (150) is oriented in the conveying direction (102), a) 9m to 12m, 11m is advantageous, or b) 12m to 14m, 13m is advantageous. A temperature control device (100) according to any one of claims 8 to 13, characterized by having an extension.

15. The at least one holding zone (156) is in the transport direction (102), a) 20m to 24m, 22m is advantageous, or b) 24m to 28m, 26m is advantageous. A temperature control device (100) according to any one of claims 8 to 14, characterized by having an extension.

16. A temperature control device (100) according to any one of claims 1 to 15, characterized in that one pressure chamber (108) is formed on each side of the temperature control chamber (106), and the circulating air can be introduced into the temperature control chamber (106) through the pressure chambers.

17. The temperature control equipment (100) according to claim 16, characterized in that at least one temperature control device (114) is located at least partially within one of the pressure chambers (108).

18. The temperature control equipment (100) according to claim 16 or 17, characterized in that the pressure chamber (108) is fluidly connected to one another by the connecting passage (110) and / or the connecting chamber.

19. The temperature control equipment (100) according to any one of claims 3 to 18, characterized in that the at least one temperature control device (114) protrudes more than the width (126) of the temperature control module (104) which is oriented horizontally and vertically with respect to the transport direction (102), by less than approximately 25%, preferably 20%, and particularly preferably 10% of the width (126) of the temperature control module (104).

20. The temperature control equipment (100) according to any one of claims 3 to 19, characterized in that the at least one temperature control device (114) includes at least one ventilator (122), the ventilator includes a ventilator axis oriented, for example, horizontally and / or vertically with respect to the transport direction (102), and / or is formed as a radial ventilator (143).

21. The temperature control equipment (100) according to claim 20, characterized in that the ventilators (122) of the heating zone (150) and the holding zone (156) are set to at least substantially the same dimensions.

22. The temperature control equipment (100) according to any one of claims 3 to 21, characterized in that the at least one temperature control device (114) includes at least one temperature control unit (128, 130), specifically an electric heating unit (131), preferably at least three temperature control units (128, 130), and the at least one temperature control unit (128, 130) is preferably introduced into the at least one power module (105) in a horizontal and / or vertical direction with respect to the transport direction (102).

23. The temperature control equipment (100) according to claim 22, characterized in that each temperature control unit (128, 130) has a plurality of heating elements (142), and the heating elements are arranged at least partially, and preferably at least almost completely, inside the same pressure chamber (108).

24. The temperature control equipment (100) according to claim 22 or 23, characterized in that at least one first temperature control unit (128) is positioned above the ventilator (122), and at least two second temperature control units (130) are positioned on opposite sides of the ventilator (122) with respect to a vertical plane that is parallel to the transport direction (102).

25. The temperature control equipment (100) according to claim 24, characterized in that the flow cross-section of the at least one first temperature control unit (128) corresponds to at least approximately 25%, preferably 50%, and particularly preferably 100% of the flow cross-section of the at least two second temperature control units (130).

26. The temperature control equipment (100) according to claim 24 or 25, characterized in that the at least one first temperature control unit (128) provides at least approximately 25%, preferably 35%, and particularly preferably 50% of the heating output of the temperature control device (114), and the at least two second temperature control units (130) each provide at least approximately 10%, preferably 15%, and particularly preferably 25% of the heating output of the temperature control device (114).

27. The temperature control equipment (100) according to any one of claims 3 to 26, characterized in that the at least one temperature control device (114) includes a motor (124), specifically an electric motor, which drives the ventilator (122), and advantageously, the motor (124) is located at least substantially entirely outside the temperature control module (104).

28. A temperature control system (100) according to any one of claims 21 to 27, characterized in that at least one guide element, specifically a guide plate, is arranged downstream of the ventilator (122) to guide circulating air to at least one temperature control unit (128, 130).

29. The temperature control equipment (100) according to any one of claims 1 to 28, characterized in that the circulating air can be led out from the floor side of the temperature control chamber (106), and the circulating air can be led out from one or both sides of the temperature control chamber (106) and / or centrally with respect to the transport direction (102).

30. The temperature control equipment (100) according to any one of claims 1 to 29, wherein the circulating air from the temperature control chamber (106) can be led out of the temperature control chamber (106) by a return passage (136), and advantageously, the return passage (136) is formed at least partially in a funnel shape on the outlet side to enlarge the flow cross-section.

31. The temperature control equipment (100) according to claim 30, characterized in that the circulating air can be led out from the return passage (136) at least partially diagonally upward.

32. A temperature control device (100) according to any one of claims 21 to 31, characterized in that a suction chamber (144) is located upstream of the ventilator (122).

33. The temperature control equipment (100) according to claim 32, characterized in that the suction chamber (144) is located between the ventilator (122) and the return passage (136).

34. The temperature control equipment (100) according to any one of claims 17 to 33, characterized in that the connecting passage (110) and / or the connecting chamber has a width determined horizontally and parallel to the transport direction (102), and the width is at least substantially equivalent to the extension of the ventilator (122) or the first temperature control unit (128) in the transport direction (102).

35. The temperature control equipment (100) according to any one of claims 1 to 34, characterized in that the workpiece can be transported through the temperature control chamber (106) by a transport device (120).

36. The temperature control equipment (100) according to claim 35, characterized in that the at least one conveying device (120) has at least one section with a gradient.

37. The temperature control equipment (100) according to claim 35 or 36, characterized in that the conveying device (120) includes a chain conveying device (132) and / or a roller conveying device (134).

38. The temperature control equipment (100) according to any one of claims 35 to 37, characterized in that at least one transport device (120) is walkable.

39. A temperature control apparatus (100) according to any one of claims 17 to 38, characterized in that the temperature control chamber (106) has two side walls (116), the side walls are oriented at least substantially toward each other and parallel to the transport direction (102), the side walls (116) of the temperature control chamber (106) have a plurality of inlet openings (118), and the circulating air can be introduced from the pressure chamber (108) into the temperature control chamber (106) through the inlet openings.

40. The temperature control equipment (100) according to claim 39, characterized in that the inlet opening (118) includes or is formed as a nozzle, and the nozzle can be advantageously oriented to a predetermined area of ​​the workpiece.

41. a) Between the at least one conveying device (120) and at least one side wall (122) of the temperature control chamber (106), preferably on the floor side on both sides of the conveying device (120), and / or b) Between the two transport devices (120) which are positioned front to back relative to each other in the transport direction (102), preferably on the floor side and / or, c) In the temperature control chamber (106) above the workpiece or in the temperature control chamber (106), The temperature control equipment (100) according to any one of claims 35 to 40, which is advantageously characterized by including a nozzle or having one or more additional inlet openings formed as the nozzle.

42. The temperature control equipment (100) according to claim 41, characterized in that at least one additional temperature control unit is arranged upstream of the additional inlet opening.

43. The temperature control equipment (100) according to claim 41 or 42, characterized in that a plurality of filter elements (140) for filtering the circulating air to be introduced into the temperature control chamber (106) are arranged upstream of the inlet opening (118).

44. A temperature control system (100) according to any one of claims 17 to 43, characterized in that at least one pressure chamber (108) is accessible for maintenance and / or adjustment work via at least one pressure chamber door.

45. The temperature control equipment (100) according to claim 44, characterized in that the pressure chamber door is located within the side wall (122) of the temperature control chamber (106) or within the housing wall of the equipment housing (124).

46. The temperature control equipment (100) according to claim 44 or 45, characterized in that all pressure chambers (108) are accessible for maintenance and / or adjustment work through two pressure chamber doors for each temperature control device (114), the pressure chamber doors being positioned in front of and behind the temperature control device (114) with respect to the transport direction (102).

47. A method for controlling the temperature of a workpiece within a temperature control device (100), specifically within a temperature control device (100) as described in any one of claims 1 to 46, specifically for heating a vehicle body, wherein the temperature control device (100) is as follows: - At least two temperature control modules (104) are arranged one behind the other in the transport direction (102), - At least one power module (105) for circulating and temperature-controlling circulating air, having at least one temperature control device (114) positioned at least partially between the at least two temperature control modules (104), Includes, The at least two temperature control modules (104) and the at least one power module (105) form a temperature control chamber (106), and the workpiece can be transported through the temperature control chamber along the transport direction (102) to control its temperature using circulating air. The above method comprises the following steps, namely, - The temperature of the circulating air is controlled by at least one temperature control unit (128, 130), preferably at least three temperature control units (128, 130) of the at least one temperature control device (114), wherein the temperature control unit is at least partially located within the first pressure chamber (108) of the temperature control equipment (100), - Temperature-controlled circulating air is introduced into the temperature control chamber (106) of the temperature control equipment (100) via a first pressure chamber (108) located on one side of the temperature control chamber (106) and a second pressure chamber (108) located on the other side of the temperature control chamber (106) and fluid-operated connection to the first pressure chamber (108). - The temperature of the workpiece transported through the temperature control chamber (106) is controlled. - The circulating air is drawn from the temperature control chamber (106) by the ventilator (122) of the temperature control device (114), and the ventilator (122) is at least partially located within the first pressure chamber (108). A method comprising the step of supplying the circulating air to at least one temperature control unit (128, 130), preferably to at least three temperature control units (128, 130).

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