Humidification system and paint shop

Abstract

The invention relates to a humidification device (10) for humidifying a painting object receiving area (118) of a booth (104) of a painting system (100), with - a fluid source (12) to provide a liquid medium, - a pressurized gas source (14) for providing pressurized gas, and - at least one humidification unit (16, 18) for feeding and atomizing the liquid medium by means of the pressurized gas into the painting object receiving area (118), wherein the humidification unit (16, 18) has a housing (22) extending along a longitudinal axis (20) in which several openings (24) are formed, wherein an atomizing nozzle (26) is arranged at or in each of the openings (24), wherein the atomizing nozzles (26) are each connected to the fluid source (12) and the pressurized gas source (14) by flow, and wherein a pivot bearing (28) is attached to the housing (22) so that the humidification unit (16, 18) can be pivoted between a first pivot position and a second pivot position about a pivot axis (30) parallel to the longitudinal axis (20).

Description

[0001] The invention relates to a humidifying device according to the preamble of claim 1. Furthermore, the invention relates to a painting system according to the preamble of the independent claim.

[0002] Painting systems are known from the prior art; for example, DE 199 37 193 A1 discloses a paint booth and a method for drying water-based basecoat applied to an object in a paint booth. Fans accelerate the air inside the paint booth, which is then applied to the object to be painted. This intensifies the drying of the applied paint and reduces the required drying time. This allows for optimization of painting work. However, the electrostatic charge that occurs in paint booths proves to be problematic, as it can cause dust and particles to contaminate the object to be painted. This creates the risk of an inferior painting result.

[0003] Modern clear coats require the addition of a liquid medium as an additive to the curing process. However, dust and particles prevent the targeted addition of the liquid medium. Various humidification systems exist in painting technology, such as nozzle humidification systems, steam humidification systems, or honeycomb humidifiers. Each of these systems has advantages and disadvantages. However, all systems are energy-intensive and require large amounts of water. Retrofitting them in paint shops is not always possible due to the space requirements of the systems.

[0004] The invention is based on the object of improving the painting results of objects to be painted in a structurally simple and energy-efficient manner. It is desirable to provide a retrofit solution for retrofitting existing painting systems.

[0005] The invention solves this problem by a humidification device having the features of claim 1.

[0006] The humidification device is designed and / or intended for humidifying a painting object receiving area of ​​a booth space of a painting system.

[0007] The humidification device comprises a fluid source for providing a liquid medium, e.g., water, and a compressed gas source for providing compressed gas, e.g., compressed air. The humidification device also comprises at least one humidification unit, preferably two humidification units, for feeding and atomizing the liquid medium into the painted object receiving area using the compressed gas.

[0008] The humidification unit or units each comprise a housing extending along a longitudinal axis, on which a plurality of (lateral), in particular circular, openings are formed, preferably on a longitudinal side of the housing. An atomizing nozzle (in the housing) is arranged at or in each of the openings, wherein the atomizing nozzles are each fluidly connected to the fluid source and the compressed gas source. The atomizing nozzles are designed to be activatable, so that when the atomizing nozzles are activated, the liquid medium can be dispensed in atomized form (aerosol) by means of the compressed gas.

[0009] Furthermore, a pivot bearing is attached to the housing so that the humidification unit or units can each be pivoted between a first pivot position (operating position) and a second pivot position (maintenance position) about a pivot axis parallel to the longitudinal axis.

[0010] This allows a painting object located, for example, in the painting object receiving area to be exposed to the liquid medium as needed (activation of the atomizing nozzles), so that the painting object is exposed to a humidified air mass flow (aerosol). Such humidification can, on the one hand, minimize or eliminate static charge on the painting object before painting. This contributes to dust-free conditions and thus improves the painting result. On the other hand, after painting, particularly after painting with moisture-curing clear coat, the paint surface or the hardness receptors of the clear coat can be moistened with moisture. This promotes the curing process of the paint or clear coat. In addition, due to the pivoting design of the humidification unit(s), they can be specifically moved into a first pivot position (operating position) and a second pivot position (maintenance position).This allows for a space-saving arrangement of the humidification unit(s) below the filter ceiling, while still allowing maintenance work on the filter ceiling by moving the humidification unit(s) to the second pivot position (maintenance position). This design also facilitates retrofitting existing paint shops with such a humidification system.

[0011] The humidification system is designed and / or intended for retrofitting a paint shop. In particular, the humidification system is designed as a retrofit kit for retrofitting a paint shop.

[0012] The atomizing nozzles are each configured in such a way that, upon activation of the atomizing nozzle, a nozzle opening of the atomizing nozzle is exposed, whereby the liquid medium is guided to the nozzle opening and atomized by the compressed gas. Closing the nozzle opening (deactivating the atomizing nozzle) stops the discharge of (atomized) liquid medium and compressed gas. The atomizing nozzles can each have a fluid connection and a compressed gas connection (to establish the flow connection with the fluid source and the compressed gas source).

[0013] The atomizing nozzles are each configured in such a way that they can be activated by applying compressed gas to a control gas line connected to the atomizing nozzles. For this purpose, the atomizing nozzles can each have a control gas connection.

[0014] It should be noted that the humidification device differs from a coating or painting device (e.g., a paint spray gun), which can be used to apply paint to the object to be painted (the actual painting process). The humidification device is a separate device from the coating or painting device.

[0015] The fluid source that provides the liquid medium can be a water tank or a water connection or domestic water supply. Thus, the liquid medium can be conventional water or tap water.

[0016] The compressed gas source that provides the compressed gas can be a compressed gas tank, e.g. a gas cylinder containing a compressed gas, or a compressed gas generator, e.g. a compressor.

[0017] Within the scope of a preferred embodiment, the humidification device can have at least one locking device for locking the at least one humidification unit in the first pivot position. In this way, the humidification unit(s) can each be easily locked in the first pivot position (operating position). The locking device is, in particular, designed to be reversibly releaseable and lockable, so that the locking of the humidification unit(s) in the first pivot position can be repeatedly or multiple times released and reused. The locking device is preferably designed such that it can be operated without tools. In particular, the locking device can be released or re-established manually.

[0018] Specifically, the locking device can be arranged at a distance from the pivot bearing, preferably orthogonal to the longitudinal axis, in particular on a different side of the housing. As a result, the design of the pivot bearing is not compromised by the locking device. Furthermore, such an arrangement of the locking device contributes to a stable attachment of the humidification unit when locked in the first pivot position. The locking device can be arranged on a housing side preferably directly adjacent to the pivot bearing.

[0019] Advantageously, the locking device can comprise a plurality of U-shaped clamps attached to the housing, a rod that can be clipped or is clipped into these U-shaped clamps and extends parallel to the pivot axis, and / or a plurality of fastening bolts with U-shaped clamps for attachment to a booth ceiling of the paint shop. This contributes to a structurally simple, stable, and space-saving design of the locking device. This facilitates easy retrofitting. When the rod is clipped into the U-shaped clamps, the U-shaped clamps surround the rod along its circumferential direction by more than half or at an angle of more than 180°.

[0020] In a preferred embodiment, the pivot bearing can comprise a plurality of U-shaped clamps attached to the housing, a rod clipped into these U-shaped clamps and extending along the pivot axis, and / or a plurality of fastening bolts with U-shaped clamps for fastening to a booth ceiling of the paint shop. This contributes to a structurally simple, stable, and space-saving design of the pivot bearing. This facilitates easy retrofitting. The U-shaped clamps surround the rod clipped into them along its circumferential direction by more than half or at an angle of more than 180°.

[0021] Quick-release couplings for connecting the fluid source and / or the compressed gas source can expediently be arranged on the housing of the humidification unit, particularly at one end of the housing. This allows for simple and quick connection of the humidification unit. The fluid quick-release coupling and the compressed gas quick-release coupling are each fluidically connected to a fluid line (fluid quick-release coupling) or to a compressed gas line (compressed gas quick-release coupling) arranged in the housing. The atomizer nozzles and their corresponding connections are, in turn, connected to these respective lines.

[0022] A further quick-coupling device for connecting a control gas can be arranged on the housing (control gas quick-coupling device), particularly at one end of the housing. The control gas quick-coupling device is fluidly connected to a control gas line located in the housing, to which the atomizing nozzles are connected with their corresponding connections (control gas connection).

[0023] Within the scope of a preferred embodiment, the humidification device can have one or more blowers, each of which in turn has a blower unit, wherein the blower unit each has a fan for generating an air flow and at least one atomizer nozzle, fluidly connected to the fluid source and the compressed gas source, for feeding and atomizing the liquid medium into the painting object receiving area using the compressed gas, wherein the atomizer nozzle is arranged downstream of the fan in the flow direction of the air flow. Thus, a painting object located, for example, in the painting object receiving area can not only be exposed to an air flow (fan), but the air flow can also be fed with a liquid medium if necessary (activation of the atomizer nozzle of the blower), so that the painting object is exposed to an accelerated and humidified air mass flow (aerosol).Because the atomizing nozzle is positioned downstream of the fan in the direction of airflow, the blower is not exposed to the liquid medium. Thus, the medium injected into the airflow and atomized is not affected by the blower.

[0024] The atomizing nozzle of the blower unit(s) may each have a fluid connection and a compressed gas connection (to establish the flow connection with the fluid source and the compressed gas source).

[0025] The atomizing nozzles of the blower unit(s) are each configured in particular such that the atomizing nozzles are activated by applying compressed gas to a control gas line connected to the atomizing nozzles. The atomizing nozzles of the blower unit(s) can each have a control gas connection for this purpose.

[0026] Advantageously, the fan(s) of the humidification device can each have a housing, wherein the fan unit of the respective fan is designed to be adjustable, in particular retractable or pivotable, relative to the housing between a use position and a non-use position, wherein the housing delimits an interior space for accommodating the fan unit, into which space the fan unit can be retracted or pivoted when not in use. The fan unit can thus be brought into the use position when needed and into the non-use position when not needed. This can reduce the space required in the booth when not in use. In addition, the fan unit can be protected from contamination by, for example, bringing it into the non-use position during painting or, in other words, by retracting or pivoting it into the receptacle.The fan and / or the atomizing nozzle of a blower are each arranged on or in the blower unit.

[0027] Within the scope of a preferred embodiment, the humidification device can have a control and / or operating unit equipped with a button (mechanical button, hard key, or soft key on a display). The control and / or operating unit is configured such that humidification (humidification operating state), e.g., of the painted object receiving area, can be activated or deactivated by pressing the button. Thus, humidification (humidification operating state) can be easily activated or deactivated by pressing a button. This facilitates the operation of the humidification device.

[0028] Advantageously, the fluid source, the compressed air source, and / or the control and / or operating unit can each be designed as mobile, portable units (carried by an operator). This simplifies operation and assembly due to their ease of handling. Furthermore, fixed installations can be omitted, simplifying the retrofitting of existing painting systems.

[0029] The object mentioned at the outset is also achieved by a painting system having the features of the independent claim.

[0030] The painting system comprises a booth, which in turn comprises a booth space with a receiving area for the object to be painted. Furthermore, the painting system comprises a humidification device with one or more of the aspects described above.

[0031] Regarding the advantages, please refer to the relevant comments on the humidification system. Further refinements can be made using the measures described above in connection with the humidification system and / or those explained below.

[0032] The painting system is used for painting and / or refinishing objects (painted objects or objects yet to be painted). The object receiving area (three-dimensional space and part of the booth space) is dimensioned in such a way that it can preferably completely accommodate the object to be painted. The object to be painted can generally be an object, e.g., a workpiece, or a vehicle such as a car, truck, bus, motorcycle, and / or the like.

[0033] The cabin has a cabin space (interior of the cabin) defined by a cabin floor, a cabin ceiling, and cabin walls. The cabin ceiling can be designed, at least in large part, as a filter ceiling (the ceiling acts as an air filter). A cabin door can be formed in one of the cabin walls. Optionally, a door can be formed in the same or another cabin wall.

[0034] Above the cabin ceiling, there may be a ventilation chamber connected to a ventilation system. Heated air is supplied via an air supply duct, which then flows filtered through the cabin ceiling into the cabin. The air supply duct may contain a heater to heat the supplied air and / or a flow generator, such as a fan, to supply air to the ventilation chamber. The air flowing into the cabin can flow out again via the cabin floor and be fed into an exhaust duct.

[0035] The booth can be a (pure) painting booth (painting system), a combined painting and drying booth (combined painting and drying system), a drying booth or a post-reaction booth (painting system with an attached booth for drying and / or post-reaction).

[0036] Fresh air from the ambient air can be supplied to the cabin via the supply air duct. Exhaust air from the cabin can be released into the ambient air via the exhaust air duct. The supply air duct and the exhaust air duct can be connected to each other by a switching flap, e.g., for dryer operation with recirculated air. The switching flap and the connection between the supply air duct and the exhaust air duct can be designed as described in DE 199 12 361 A1.

[0037] The painting system is particularly designed in such a way that it can be switched to a painting mode, a drying mode, a recirculation mode and / or a standby mode (painting system out of operation).

[0038] In a preferred embodiment, a cabin ceiling can define the cabin space (upwardly against the direction of gravity), with at least a large portion of the cabin ceiling, preferably a predominant portion of the cabin ceiling, being formed by a filter ceiling. The filter ceiling has a frame and filter segments that can be opened or pivoted relative to the frame toward the cabin space.The housing of the humidification unit is attached to the filter ceiling, in particular to the frame of the filter ceiling, in such a way that when the housing is in the first pivot position, the atomizing nozzles of the humidification unit are aligned towards the painting object receiving area and the housing is located below the filter segments. When the housing is in the second pivot position, the atomizing nozzles are directed away from the painting object receiving area and the housing is pivoted away from the filter ceiling in such a way that the filter segments of the filter ceiling can be pivoted or opened relative to the frame towards the booth space. This allows a space-saving arrangement of the humidification unit(s) below the filter ceiling, whereby maintenance work on the filter ceiling is still possible by moving the humidification units into the second pivot position (maintenance position).

[0039] Advantageously, a lighting device for illuminating the cabin space (cabin lighting device) can extend parallel to the pivot axis at the transition from the cabin ceiling to an adjacent cabin wall, wherein the housing of the humidification unit is arranged below the lighting device in the second pivot position. Preferably, the humidification unit is arranged outside a clear cross-section below the lighting device in the first pivot position, or in other words, outside a light emission area of ​​the lighting device. Thus, the humidification unit can be pivoted in front of the lighting device in a space-saving manner, for example, for servicing the filter ceiling. The fact that the humidification unit penetrates into the light emission area of ​​the lighting device in the second pivot position is acceptable, for example, during maintenance work on the filter ceiling.In contrast, in the first swivel position, the humidification unit is located outside the light emission range of the lighting device, so that the cabin can be adequately illuminated.

[0040] In a preferred embodiment, receptacles can be formed in the cabin ceiling, particularly in the corners of the cabin, each of which accommodates the housing of one of the fans, so that the fan unit can be retracted or swung into the cabin ceiling when not in use. This reduces the risk of contamination of the fan(s). Furthermore, it facilitates maintenance of the filter ceiling, since the fans do not protrude from the filter ceiling or into the cabin space when swung in.

[0041] As already indicated above, the humidification device preferably comprises two humidification units. These can each be arranged at the transition from the cabin ceiling to an adjacent cabin wall, preferably adjacent to a lighting device. The lighting device can be arranged directly at the transition (i.e., in the corner), and the humidification units can be arranged adjacent to it, offset inward.

[0042] The humidification unit or the housing of the humidification unit can extend over at least 80%, preferably over at least 90%, and more preferably over at least 95% of the length of the booth space. This allows for rapid and uniform humidification of the area receiving the object to be painted.

[0043] A humidification unit can preferably have four to six lateral, particularly circular, openings on its housing, each with an atomizing nozzle arranged on or in the opening. The openings or atomizing nozzles can be spaced approximately 1 to 1.5 meters apart along the longitudinal axis of the housing.

[0044] The invention is explained in more detail below with reference to the figures, in which identical or functionally equivalent elements are provided with identical reference numerals, if necessary, but only once. They show: Fig. 1 a painting system with a humidification device in a schematic longitudinal section; Fig. 2 the painting system in a perspective sectional view according to the Fig. 1 section axis II-II (cross-section) and an enlarged partial view with the humidification units in the first pivoting position; Fig. 3 the painting system in a partial section according to the Fig. 1 marked section axis III-III; Fig. 4 an enlarged view of an atomizing nozzle of the humidification unit; Fig. 5 the painting system Fig. 1 in a perspective sectional view analogous to Fig. 2, wherein the humidification units are in the second pivoting position; Fig. 6 the painting system Fig. 1 in a partial section analogous to Fig. 3, wherein the humidification units are in the first pivoting position; and Fig. 7 a blower of the humidification device in a perspective view, with the blower unit in the position of use.

[0045] Fig. 1 shows a painting system, which is designated overall by the reference numeral 100.

[0046] The painting system 100 has a booth 102, in this example a paint booth 102. The booth 102 has a booth space 104, which is defined by a booth floor 106, a booth ceiling 108, and booth walls 110, 112, 114, 116. In this example, the booth ceiling 108 is designed as a filter ceiling 109 and functions as an air filter. The booth space 104 includes a three-dimensional painting object receiving area 118, which is part of the booth space 104.

[0047] In the example, a cabin gate 120 is formed in the cabin wall 110 and a cabin door 122 is formed in the cabin wall 112 (cf. Fig. 2). Folding doors 124, 126 are formed in the cabin walls 114, 116, respectively.

[0048] In the example, there is a ventilation space 128 above the cabin ceiling 108 (cf. Fig. 1 and Fig. 2), to which heated air is supplied via an air supply duct (not shown), which flows filtered air through the cabin ceiling 108 into the cabin space 104. A heating device for heating the supplied air can be arranged in the air supply duct (not shown). The air flowing into the cabin space 104 can flow out again via the cabin floor 106 and be fed into an exhaust air duct (floor extraction; not shown).

[0049] As already indicated above, a large part of the cabin ceiling 108 is formed by a filter ceiling 109. The filter ceiling 109 has a frame 130 and filter segments 132 that can be pivoted relative to the frame 130 towards the cabin space 104 (see in particular Fig. 3).

[0050] At the transition from the cabin ceiling 108 to an adjacent cabin wall 114, 116, a lighting device 140, 142 is arranged to illuminate the cabin space 104 (cf. e.g. Fig. 2 and Fig. 3).

[0051] In the cabin ceiling 108, in the example in the corners of the cabin, receptacles 150 are formed for receiving a blower or a housing of a blower, which are described in more detail below.

[0052] The painting system 100 is also retrofitted with a humidification device 10 (see, for example, Fig. 2).

[0053] The humidification device 10 is designed and intended for humidifying the painting object receiving area 118 of the booth space 108 of a painting system 100.

[0054] The humidification device 10 has a fluid source 12 (shown only schematically) for providing a liquid medium, e.g. water, and a compressed gas source 14 (shown only schematically) for providing compressed gas, e.g. compressed air (cf. Fig. 1). The humidification device 10 also has at least one humidification unit 16, in the example two humidification units 16, 18, for feeding and atomizing the liquid medium by means of the compressed gas into the painting object receiving area 118 (cf. Fig. 2 and Fig. 5).

[0055] The structure of the humidification units 16, 18 is described below using the example of humidification unit 16. The humidification unit 18 has an analogous structure.

[0056] The humidification unit 16 has a housing 22 extending along a longitudinal axis 20 (cf. Fig. 2 to 4), on which a plurality of lateral openings 24, in the example four circular ones, are formed on each longitudinal side of the housing. An atomizer nozzle 26 is arranged at or in each of the openings 24, wherein the atomizer nozzles 26 are each fluidly connected to the fluid source 12 and the compressed gas source 14. The atomizer nozzles 26 are designed to be activatable, so that upon activation of the atomizer nozzles 26, the liquid medium can be dispensed in atomized form by means of the compressed gas (aerosol).

[0057] The atomizing nozzles 26 are each configured such that, upon activation of the atomizing nozzles 26, a nozzle opening of the atomizing nozzle 26 is exposed, whereby the liquid medium is guided to the nozzle opening and atomized by the compressed gas. Closing the nozzle opening (deactivating the atomizing nozzle) terminates the discharge of (atomized) liquid medium and compressed gas. The atomizing nozzles 26 each have a fluid connection FA and a compressed gas connection DA (see FIG. 1) to establish the flow connection with the fluid source 12 and the compressed gas source 14. Fig. 4).

[0058] The atomizing nozzles 26 are each configured such that activation of the atomizing nozzles 26 occurs by pressurizing a control gas line connected to the atomizing nozzles 26 with compressed gas. For this purpose, the atomizing nozzles 26 each have a control gas connection SA (see Fig. 4).

[0059] A pivot bearing 28 is attached to the housing 22 so that the humidification unit 16 can be pivoted between a first pivot position (operating position; see Fig. 2 to 4) and a second swivel position (maintenance position; see Fig. 5 and Fig. 6) can be pivoted about a pivot axis 30 parallel to the longitudinal axis 20 (cf. Fig. 4).

[0060] The humidification device 10 has at least one locking device 40 for locking the at least one humidification unit 16, 18 in the first pivot position (cf. Fig. 3 and Fig. 4). The locking device 40 is designed to be reversibly detachable and lockable. Furthermore, the locking device 40 in the example is designed to be tool-free. The locking device 40 is arranged orthogonally to the longitudinal axis 20 at a distance from the pivot bearing 28, specifically on a housing side 41 directly adjacent to the pivot bearing 28.

[0061] The locking device 40 has a plurality of U-shaped clamps 42 fastened to the housing 22, a rod 44 which can be clipped or is clipped into these U-shaped clamps 42 and extends parallel to the pivot axis 30, and a plurality of fastening bolts 46 with U-shaped clamps 48 for fastening to the booth ceiling 108 of the painting system 100 (cf. Fig. 4). The fastening bolts 46 are attached to the frame 130. When the rod 44 is clipped into the U-shaped clamps 42, 48, the U-shaped clamps 42, 48 surround the rod 44 along its circumferential direction by more than half or by an angle of more than 180°.

[0062] The pivot bearing 28 has several U-shaped clamps 32 fastened to the housing 22 (cf. Fig. 3), a rod 34 clipped into these U-shaped clamps 32 and extending along the pivot axis 30 and / or several fastening bolts 36 with U-shaped clamps 38 for fastening to the booth ceiling 108 of the painting system 100 (cf. Fig. 4). The U-shaped clamps 32, 38 surround the rod 34 clipped into them along its circumferential direction by more than half or by an angle of more than 180°.

[0063] On the housing 22 of the humidification unit 16, for example at a front end of the housing 22, quick couplings for connecting the fluid source (fluid quick coupling), the compressed gas source (compressed gas quick coupling) and / or a control gas (control gas quick coupling) can be arranged (not shown), as described above.

[0064] In the example, the humidification device 10 has four fans 50, each of which has a fan unit 52 (cf. Fig. 2 and Fig. 7). The blower unit 52 has a fan 54 for generating an air flow and, in the example, an atomizing nozzle 56 fluidly connected to the fluid source 12 and the compressed gas source 14 for feeding and atomizing the liquid medium into the painted object receiving area 118 by means of the compressed gas. The atomizing nozzle 56 is arranged downstream of the fan 54 in the flow direction of the air flow.

[0065] The fans 50 of the humidification device 10 each have a housing 58, wherein the fan unit 52 of the respective fan 50 can be moved relative to the housing 58 between a use position (cf. Fig. 7) and a non-use position (cf. Fig. 1, Fig. 2 and Fig. 5) is adjustable, in particular retractable or pivotable, wherein the housing 58 defines an interior space for accommodating the blower unit 52, into which the blower unit 52 can be retracted or pivoted when not in use. The blower 50 or the housing 58 of the blower 50 is arranged in the receptacle 150 in the cabin ceiling 108.

[0066] The humidification device 10 can have a control and / or operating unit (not shown) which is equipped with a button (mechanical button, hard key or soft key on a display), wherein the control and / or operating unit is configured such that humidification (humidification operating state), for example of the painting object receiving area 118, can be activated or deactivated by pressing the button.

[0067] The atomizing nozzle 56 of the blower 50 is configured such that, upon activation of the atomizing nozzle 56, a nozzle opening of the atomizing nozzle 56 is exposed, whereby the liquid medium is guided to the nozzle opening and atomized by the compressed gas. Closing the nozzle opening (deactivating the atomizing nozzle) terminates the discharge of (atomized) liquid medium and compressed gas. The atomizing nozzle 56 has a fluid connection FA' and a compressed gas connection DA' (for establishing the flow connection with the fluid source 12 and the compressed gas source 14) (see FIG. Fig. 7).

[0068] The atomizing nozzle 56 is configured in such a way that the atomizing nozzle 56 is activated by applying compressed gas to a control gas line connected to the atomizing nozzle 56. For this purpose, the atomizing nozzle 56 has the control gas connection (not shown).

[0069] The housing 22 of the humidification unit 16 is fastened to the frame 130 of the filter cover 109 in such a way that when the housing 22 is in the first pivot position (cf. e.g. Fig. 3), the atomizing nozzles 26 of the humidification unit 16 are aligned with the painting object receiving area 118 and the housing 22 is located below the filter segments 132 and when the housing 22 is in the second pivot position (cf. e.g. Fig. 6), the atomizing nozzles 26 are directed away from the painting object receiving area 118 and the housing 22 is pivoted away from the filter ceiling 109 such that the filter segments 132 of the filter ceiling 109 can be pivoted or opened relative to the frame 130 towards the booth space 104.

[0070] As already indicated above, the lighting device 140 extends parallel to the pivot axis 30 at the transition from the cabin ceiling 108 to the adjacent cabin wall 114. The housing 22 of the humidification unit 16 is in the second pivot position (cf. e.g. Fig. 6) is arranged below the lighting device 140. The housing 22 of the humidification unit 16 is then arranged within a light emission area 144 of the lighting device 140. In the first pivot position (cf. e.g. Fig. 3) the housing 22 of the humidification unit 16 is arranged outside a clear cross-section below the lighting device 140 or in other words outside the light emission area 144 of the lighting device 140.

[0071] In the present example, the two humidification units 16, 18 or their housings each extend over at least 95% of the length of the cabin space 104. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 199 37 193 A1

[0002] DE 199 12 361 A1

[0036]

Claims

[1] Humidifying device (10) for humidifying a painting object receiving area (118) of a booth space (104) of a painting system (100), with - a fluid source (12) for providing a liquid medium, - a compressed gas source (14) for providing compressed gas, and - at least one humidification unit (16, 18) for feeding and atomising the liquid medium by means of the compressed gas into the painting object receiving area (118), characterized byin that the humidification unit (16, 18) has a housing (22) extending along a longitudinal axis (20) and on which a plurality of openings (24) are formed, wherein an atomizing nozzle (26) is arranged at or in each of the openings (24), wherein the atomizing nozzles (26) are each fluidically connected to the fluid source (12) and the compressed gas source (14), and wherein a pivot bearing (28) is fastened to the housing (22) so that the humidification unit (16, 18) can be pivoted between a first pivot position and a second pivot position about a pivot axis (30) parallel to the longitudinal axis (20). [2] Humidifying device (10) according to claim 1, characterized by that a locking device (40) is provided for locking the humidification unit (16, 18) in the first pivoting position. [3] Humidifying device (10) according to claim 2, characterized bythat the locking device (40), preferably orthogonal to the longitudinal axis (20), is arranged at a distance from the pivot bearing (28), in particular is arranged on another housing side of the housing (22). [4] Humidifying device (10) according to claim 2 or 3, characterized by that the locking device (40) has a plurality of U-shaped clamps (42) fastened to the housing (22), a rod (44) which can be clipped or is clipped into these U-shaped clamps (42) and which extends parallel to the pivot axis (30) and / or a plurality of fastening bolts (46) with U-shaped clamps (48) for fastening to a booth ceiling (108) of the painting system (100). [5] Humidifying device (10) according to one of the preceding claims, characterized bythat the pivot bearing (28) has a plurality of U-shaped clamps (32) fastened to the housing (22), a rod (34) clipped into these U-shaped clamps (32) and extending along the pivot axis (30) and / or a plurality of fastening bolts (36) with U-shaped clamps (38) for fastening to a booth ceiling (108) of the painting system (100). [6] Humidifying device (10) according to one of the preceding claims, characterized by that quick couplings for connecting the fluid source and / or the compressed gas source are arranged on the housing (22), in particular on a front end of the housing (22). [7] Humidifying device (10) according to one of the preceding claims, characterized bythat at least one blower (50) with a blower unit (52) is provided, wherein the blower unit (52) has a fan (54) for generating an air flow and at least one atomizer nozzle (56) fluidly connected to the fluid source (12) and the compressed gas source (14) for feeding and atomizing the liquid medium by means of the compressed gas into the painting object receiving area (118), wherein the atomizer nozzle (56) is connected downstream of the fan (54) in the flow direction of the air flow. [8] Humidifying device (10) according to claim 7, characterized byin that the blower (50) has a housing (58), wherein the blower unit (52) is designed to be adjustable, in particular retractable or pivotable, relative to the housing (58) between a use position and a non-use position, wherein the housing (58) delimits an interior space for accommodating the blower unit (52), into which space the blower unit (52) can be retracted or pivoted when not in use. [9] Humidifying device (10) according to one of the preceding claims, characterized by that a control and / or operating unit is provided which is equipped with a button, wherein the control and / or operating unit is configured such that moistening of the painting object receiving area (118) can be activated or deactivated by actuating the button. [10] Humidification device (10) according to one of the preceding claims, characterized bythat the fluid source (12), the compressed air source (14) and / or the control and / or operating unit are each designed as mobile, portable units. [11] Painting system (100), with a booth (102) having a booth space (104) with a painting object receiving area (118), and with a humidification device (10) according to one of the preceding claims. [12] Painting system (100) according to the preceding claim, characterized bythat a booth ceiling (108) delimits the booth space (104), wherein at least a large part of the booth ceiling (108) is formed by a filter ceiling (109), and wherein the filter ceiling (109) has a frame (130) and filter segments (132) which can be pivoted relative to the frame (130) towards the booth space (104), wherein the housing (22) of the humidification unit (16, 18) is fastened to the filter ceiling (109), in particular to the frame (130) of the filter ceiling (109), in such a way that when the housing (22) is in the first pivot position, the atomizing nozzles (26) are aligned with the painting object receiving area (118) and the housing (22) is located below the filter segments (132), and when the housing (22) is in the second pivot position, the atomizing nozzles (26) are away from the painting object receiving area (118) are directed away and the housing (22) is pivoted away from the filter cover (109) in such a way thatthat the filter segments (132) can be pivoted relative to the frame (130) towards the cabin space (104). [13] Painting system (100) according to the preceding claim, characterized by that a lighting device (120) for illuminating the cabin space () extends parallel to the pivot axis (30) at the transition from the cabin ceiling (108) to an adjacent cabin wall (114, 116), wherein the housing (24) of the humidification unit (20) is arranged below the lighting device (140, 142) in the second pivot position. [14] Painting system (100) according to one of the preceding claims, characterized by in that receptacles (150) are formed in the cabin ceiling (108), in particular in corners of the cabin, each of which receives the housing (58) of one of the blowers (50), so that the blower unit (52) can be retracted or pivoted into the cabin ceiling (108) when not in use.

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