Spraying device

Abstract

The invention relates to a spray device (1) comprising a hollow cylindrical spray nozzle body (2) which has a connection formation (3) for connection to a fluid supply line on an upper end face and is closed on the opposite lower end face, wherein a cylinder jacket of the spray nozzle body (2) has a plurality of fluid flow openings (4) arranged at the same height and distributed over a circumference of the spray nozzle body (2), wherein a number of baffle plates (5) corresponding to the number of fluid flow openings (4) are arranged on the spray nozzle body (2), wherein the baffle plates (5) are arranged distributed around the circumference of the spray nozzle body (2) and exactly one of the baffle plates (5) is assigned to each fluid flow opening (4), wherein the baffle plates (5) are spaced apart from one another in the circumferential direction of the spray nozzle body (2),wherein a length (L) of the respective baffle plate (5) in the radial direction of the spray nozzle body (2) is greater than a width (B) of the respective baffle plate (5), wherein the respective baffle plate (5) is curved in a spoon-shaped manner.,

Description

[0001] The invention relates to a spray device.

[0002] A spray nozzle and a method are known from the prior art, as described in DE 10 2018 133 067 A1. The spray nozzle comprises a body and a deflector. The body has a fluid passage and an outer wall. The outer wall has a plurality of fluid flow openings in fluid communication with the fluid passage, which are at least partially circumferentially spaced around the outer wall. The deflector is arranged at least partially circumferentially around and radially outwardly of the body in fluid communication with the plurality of fluid flow openings and has slots and fingers that are at least partially circumferentially spaced around the deflector.

[0003] The invention is based on the object of providing a spray device which is improved compared to the prior art.

[0004] The object is achieved according to the invention by a spray device having the features of claim 1.

[0005] Advantageous embodiments of the invention are the subject of the subclaims.

[0006] A spray device according to the invention, in particular for cleaning the interior of a container, for example the interior of a tank, has a hollow cylindrical spray nozzle body which has a connection formation on an upper end face for connection to a fluid supply line and is closed on the opposite lower end face. A cylindrical jacket of the spray nozzle body has a plurality of fluid flow openings arranged at the same height and distributed over a circumference of the spray nozzle body. A number of baffles corresponding to the number of fluid flow openings is arranged on the spray nozzle body, wherein the baffles are arranged distributed around the circumference of the spray nozzle body and exactly one of the baffles is assigned to each fluid flow opening. This means:Each fluid flow opening is assigned its own baffle plate, and the baffles are arranged in such a way that the respective fluid flow opening is precisely and exclusively aligned with the baffle plate assigned to it, so that a spray jet emitted by the respective fluid flow opening strikes exclusively the baffle plate assigned to the fluid flow opening and does not strike any of the other baffles before striking the baffle plate.

[0007] The baffles are each arranged on the spray nozzle body in particular so as to protrude from the latter in the radial direction thereof, ie they are each aligned, at least substantially, in the radial direction of the spray nozzle body.

[0008] The respective baffle plate is, for example, fixedly connected, in particular rotationally fixed, to the spray nozzle body. In another embodiment, the respective baffle plate is, for example, movably connected, in particular rotatably connected, to the spray nozzle body, in particular rotatably connected about the radial axis of the spray nozzle body at the connection point of the respective baffle plate. As a result, the respective baffle plate is rotated by the spray jet impinging on the fluid flow opening associated with the respective baffle plate, thereby generating a changing spray pattern.For example, it can be provided that all baffles of the spray device are fixedly, in particular non-rotatably, connected to the spray nozzle body, or that all baffles of the spray device are movably connected to the spray nozzle body in the manner described, or that one or more baffles are fixedly, in particular non-rotatably, connected to the spray nozzle body, and that one or more other baffles are movably connected to the spray nozzle body in the manner described.

[0009] The baffles are spaced apart from one another in the circumferential direction of the spray nozzle body. A length of the respective baffle plate in the radial direction of the spray nozzle body is greater than a width of the respective baffle plate, in particular at least twice as large as the width of the respective baffle plate. The width of the baffle plate is in particular a width direction of an upwardly or downwardly directed surface of the baffle plate perpendicular to the length direction of the baffle plate, i.e. in particular aligned in the tangential direction of a tangent of the spray nozzle body at the intersection point of the radials of the spray nozzle body at the connection point to the baffle plate.

[0010] The respective baffle plate is curved, in particular in the direction of a circumferential edge, in particular spoon-shaped, in particular spoon-shaped, i.e. in the shape of a bowl of a cutlery spoon. It is curved, in particular, in the direction of the fluid flow opening to which it is assigned. In particular, the respective baffle plate is curved in the direction of a circumferential section at a free end of the baffle plate facing away from the spray nozzle body in such a way that this circumferential section is curved in the direction of the fluid flow opening at this free end facing away from the spray nozzle body, i.e. a circumferential edge of this circumferential section has a smaller radial distance from the fluid flow opening than it would have in the non-curved state of the baffle plate.If the respective baffle plate is arranged below the fluid flow opening assigned to it, then it is curved upwards in particular in the direction of the circumferential edge; if it is arranged differently relative to the fluid flow opening, then it is curved in a correspondingly different direction. This means that if the respective baffle plate is arranged, for example, above the fluid flow opening assigned to it, then it is curved downwards in particular in the direction of the circumferential edge. In particular, it is provided that the respective baffle plate is curved in the manner described, starting from the spray nozzle body in the radial direction up to the circumferential edge, and is curved in the manner described, starting in the width direction from a central region to a respective lateral circumferential edge.

[0011] In one possible embodiment, the respective baffle plate, as already mentioned, is arranged on the spray nozzle body, in particular below the fluid flow opening to which it is assigned. The upward curvature ensures that a fluid jet sprayed from the fluid flow opening in the radial direction of the spray nozzle body strikes the curved baffle plate and is deflected by it, in particular upwards, in accordance with its curvature. With a different arrangement of the baffle plate relative to the fluid flow opening and a correspondingly different curvature as described above, a fluid jet sprayed from the fluid flow opening in the radial direction of the spray nozzle body also strikes the curved baffle plate and is deflected by it, in accordance with its curvature.

[0012] The arrangement of the baffles relative to the associated fluid flow opening, i.e. above, below or, for example, to the side of the fluid flow opening, can be the same for all baffles or the baffles can be arranged differently.

[0013] In one embodiment, a plurality of fingers spaced apart from one another in the circumferential direction of the baffle plate are formed on a circumference of the respective baffle plate. The fingers are formed, in particular, on a circumferential section at a free end of the baffle plate facing away from the spray nozzle body and / or, starting from this free end, at least over a partial section of the respective lateral circumferential section in the direction of the spray nozzle body on the circumference of the respective baffle plate. This configuration can be provided for one or more or all baffles of the spray device.

[0014] The respective baffle plate thus has, in particular, a plant leaf shape, especially a deciduous tree leaf shape. The baffles can be shaped similarly or differently.

[0015] The described solution enables a simple deflection, fanning out, and distribution of the spray jets from the fluid flow openings, in particular upwards and in the circumferential direction of the spray nozzle body. This advantageously achieves a spray range of the spray device of 180°, i.e. starting from a circular horizontal plane extending through the circumferentially distributed and radially aligned fluid flow openings upwards, in particular up to the axis, in particular the axis of rotational symmetry, of the spray nozzle body. This makes it possible to effectively clean the container interior by means of such a simple and cost-effective spray device, which is not moved within the container interior but is merely arranged through a container opening in the container interior and remains immobile there during spraying.It is particularly important to spray the upper area of ​​the container interior, especially around the container opening, as this area is difficult to clean. The lower areas of the container interior are then also cleaned by the fluid running down the inside of the container space and / or by the fluid collecting in the lower area of ​​the container space.

[0016] The connection formation of the spray nozzle body has, for example, a thread for screwing to the fluid supply line or is designed, for example, for a split pin connection to the fluid supply line or for another connection to the fluid supply line.

[0017] The described contour, in particular the circumferential contour, of the respective baffle plate is formed, for example, by means of laser beam cutting, water jet cutting, machining or in another way.

[0018] The described curved shape of the respective baffle plate is formed, for example, by forming in a die. Bending radii are specified in particular depending on the cleaning area to be realized and thus depending on the required spray pattern and corresponding jet distribution.

[0019] In one embodiment, the fingers each have at least one branching point towards a free end, i.e. the respective finger divides into several branch fingers, at least two branch fingers. Several or all of the fingers or, for example, just one of the fingers of the respective baffle plate can each have such branching points. This makes it possible to achieve a different spray pattern, for example a finer fanning out of the spray jets emitted from the fluid flow openings. This configuration can be provided for one or more or all of the baffles of the spray device. For example, all of the baffles can have the same or different branching points, or one or more baffles can have the same or different branching points and one or more other baffles can have no branching points.

[0020] In one embodiment, the respective baffle plate has holes with a closed hole circumference and / or at least one slot with a closed slot circumference. The slot extends, for example, in the length direction or width direction or transversely to the length and width direction of the baffle plate. It is spaced, in particular, from the spray nozzle body and from the circumferential section of the free end of the baffle plate facing away from the spray nozzle body. It is formed, for example, centrally in the width direction in the baffle plate. It is spaced, in particular, from both lateral circumferential sections.The holes and / or the at least one slot ensure, for example, that a portion of the spray jet emitted from the respective fluid flow opening passes through the baffle plate, or more precisely, through these holes and / or through this slot in the baffle plate, thereby achieving a modified spray pattern with which further areas of the container interior can be directly sprayed. This configuration can be provided for one or more or all baffles of the spray device. Slots and / or holes can be the same or different in all baffles that have them.

[0021] In one embodiment, the respective baffle plate is oriented rotated about a radial line of the spray nozzle body. This means that the two lateral circumferential sections of the respective baffle plate do not have the same height position relative to the upper end face of the spray nozzle body, but rather one lateral circumferential section of the respective baffle plate is positioned higher than the other lateral circumferential section. This twisting of the baffles at a predetermined angle is particularly advantageous when the immersion depth into the container interior is shallow, for example when the spray device is arranged a short distance below the container opening. In other embodiments, for example, only one or several, but not all, baffles can be oriented rotated in this way.

[0022] In one embodiment, the baffles are arranged around the circumference of a retaining ring. This retaining ring is attached to the lower end face of the spray nozzle body. This allows for the shaping of the baffles and their connection to the spray nozzle body in a particularly simple manner. The retaining ring is attached to the spray nozzle body, for example, by means of a clamp connection, press connection, plug connection, screw connection, welded connection, or adhesive connection.

[0023] In one embodiment, the cylinder jacket of the spray nozzle body has at least one plurality of further fluid flow openings arranged at the same height and distributed over the circumference of the spray nozzle body in the axial direction of the spray nozzle body, spaced from the plurality of fluid flow openings, wherein a number of further baffles corresponding to the number of further fluid flow openings is arranged on the spray nozzle body, wherein the further baffles are arranged distributed around the circumference of the spray nozzle body and exactly one of the further baffles is assigned to each further fluid flow opening, wherein the further baffles are spaced from one another in the circumferential direction of the spray nozzle body.

[0024] In this embodiment, the spray device therefore not only has a single combination of fluid flow openings and associated baffle plates, which are designed and arranged in the manner described above, but also at least one further combination of fluid flow openings and associated baffle plates, which are designed and arranged in the manner described above, at a distance axially therefrom on the spray nozzle body, i.e. below or above them. In particular, they can also each be fixedly or movably connected to the spray nozzle body in the manner described above. This is therefore a multi-level embodiment of the fluid flow openings and associated baffle plates. More than two such combinations of fluid flow openings and associated baffle plates can also be provided, which are arranged axially offset from one another on the spray nozzle body.

[0025] The shape and orientation of the baffle plates can be the same in all of these combinations or differ between these combinations. This depends in particular on the spray pattern required in each case, corresponding to a particular cleaning task. In one possible embodiment, it can also be provided that the baffle plates of at least one of the above-mentioned combinations of fluid flow openings and associated baffle plates are not curved upwards, as described above, but in the opposite direction, i.e. downwards. This respective baffle plate is then arranged in particular above the fluid flow opening assigned to it. The spray jet of the fluid flow opening is then deflected downwards by the baffle plate.

[0026] In one embodiment, a distance between adjacent baffles in the circumferential direction of the spray nozzle body corresponds to a distance between adjacent further baffles in the circumferential direction of the spray nozzle body, ie the adjacent baffles have the same distance from one another in all combinations described above.

[0027] In one embodiment, the plurality of baffles are arranged offset from the plurality of further baffles in the circumferential direction of the spray nozzle body.

[0028] This then also applies accordingly to the associated fluid flow openings, i.e. the plurality of fluid flow openings are arranged offset in the circumferential direction of the spray nozzle body relative to the plurality of further fluid flow openings. The baffles are thus arranged offset in the circumferential direction and in the axial direction of the spray nozzle body relative to the further baffles. This in particular prevents the baffles from obstructing one another, i.e. fluid deflected by the respective baffle plate from striking another baffle plate, in particular one arranged above it, and from being deflected again by this. Likewise, the fluid flow openings are arranged offset in the circumferential direction and in the axial direction of the spray nozzle body relative to the further fluid flow openings.

[0029] The plurality of baffles is arranged, for example, offset in the circumferential direction of the spray nozzle body relative to the plurality of further baffles such that one baffle is arranged between two further baffles in the circumferential direction of the spray nozzle body.

[0030] Embodiments of the invention are explained in more detail below with reference to the drawings, in which: Figure 1 schematically shows an exploded view of an embodiment of a spray device, Figure 2 schematically shows a perspective view of the embodiment of the spray device according to Figure 1 , Figure 3 schematically shows the embodiment of the spray device according to Figure 1 in a plan view from below, Figure 4 schematically shows the embodiment of the spray device according to Figure 1 in a plan view from above, Figure 5 schematically shows a spray pattern of the embodiment of the spray device according to Figure 1, Figure 6 schematically shows a perspective view of a further embodiment of the spray device, Figure 7 schematically shows a perspective view of a further embodiment of the spray device, Figure 8 schematically shows a perspective view of a further embodiment of the spray device, Figure 9 schematically shows the embodiment of the spray device according to Figure 8 in a plan view from below, Figure 10 schematically shows a perspective view of a further embodiment of the spray device, and Figure 11 schematically shows a further perspective view of the spray device according to Figure 10 .

[0031] Corresponding parts are provided with the same reference numerals in all figures.

[0032] Based on the Figures 1 to 11In the following, exemplary embodiments of a spray device 1 are described, which is intended in particular for cleaning a container interior, for example an interior of a tank. Figures 1 to 5 a first embodiment of the spray device 1, wherein in Figure 5 In addition, a spray pattern SB of a fluid F sprayed by the spray device 1 is shown, and the Figures 6 , 7 , 8 and 9 and 10 and 11 show four further embodiments by way of example, the embodiment according to the Figures 10 and 11 deviates somewhat from the basic design initially described below, as will be described later.

[0033] In all illustrated embodiments, the spray device 1 comprises a hollow cylindrical spray nozzle body 2, which has a connection formation 3 on an upper end face for connection to a fluid supply line. The connection formation 3 has, for example, a thread for screwing to the fluid supply line or is designed, for example, for a split pin connection to the fluid supply line or for another connection to the fluid supply line.

[0034] In the embodiments according to the Figures 1 to 9 this spray nozzle body 2 is closed at the opposite lower end face.

[0035] In the embodiments according to the Figures 1 to 7A cylindrical shell of the spray nozzle body 2 has a plurality of fluid flow openings 4 arranged at the same height and distributed over a circumference of the spray nozzle body 2. Arranged at the same height means, in particular, that the fluid flow openings 4 are at the same distance from the upper end face of the spray nozzle body 2. They are thus arranged, in particular, in a ring shape around the spray nozzle body 2.

[0036] Arranged on the spray nozzle body 2 is a number of baffle plates 5 corresponding to the number of fluid flow openings 4. Just like the fluid flow openings 4, the baffle plates 5 are also arranged distributed around the circumference of the spray nozzle body 2. Exactly one of the baffle plates 5 is assigned to each fluid flow opening 4. This means that each fluid flow opening 4 is assigned its own baffle plate 5, and the baffle plates 5 are arranged such that the respective fluid flow opening 4 is precisely and exclusively aligned with the baffle plate 5 assigned to it, in particular such that a spray jet emitted by the respective fluid flow opening 4 impinges exclusively on the baffle plate 5 assigned to the fluid flow opening 4 and does not impinge on any of the other baffle plates 5 before impinging on the baffle plate 5.

[0037] The baffles 5 are each arranged on the spray nozzle body 2 in particular so as to protrude from the latter in the radial direction thereof, ie they are each aligned, at least substantially, in the radial direction of the spray nozzle body 2.

[0038] The baffles 5 are spaced apart from one another in the circumferential direction of the spray nozzle body 2, i.e., adjacent baffles 5 in the circumferential direction of the spray nozzle body 2 do not touch one another. A length L of the respective baffle 5 in the radial direction of the spray nozzle body 2 is greater than a width B of the respective baffle 5, in particular at least twice as large as the width B of the respective baffle 5. The width B of the baffle 5 is in particular a width direction of an upwardly or downwardly directed surface of the baffle 5. The width B is oriented perpendicular to the length direction of the baffle 5, i.e., in particular, in the tangential direction of a tangent of the spray nozzle body 2 at the intersection point of the radials of the spray nozzle body 2 at the connection point to the baffle 5. In Figure 4The length L and width B are shown schematically using the example of one of the baffle plates 5. The length L is to be understood in particular as the greatest length L of the baffle plate 5, ie the greatest extent in the length direction, and the width B is to be understood in particular as the greatest width B of the baffle plate 5, ie the greatest extent in the width direction.

[0039] The respective baffle plate 5 is curved, in particular in the direction of a peripheral edge, in particular spoon-shaped, and in the illustrated examples, curved upwards. More precisely, in the illustrated embodiments, the respective baffle plate 5 is curved upwards from the spray nozzle body 2 in the radial direction of the spray nozzle body 2 to the peripheral edge, and is curved upwards in the width direction from a central region to a respective lateral peripheral edge.

[0040] The respective baffle plate 5 is arranged below the fluid flow opening 4 to which it is assigned on the spray nozzle body 2. The upward curvature ensures that a fluid jet sprayed from the fluid flow opening 4 in the radial direction of the spray nozzle body 2 impinges on the curved baffle plate 5 and is deflected by it, in particular upwards, according to its curvature, as shown by way of example in Figure 5 shown. With a different arrangement of the baffle plates 5 relative to their respective associated fluid flow opening 4, the curvature is also aligned differently. This can be the case, for example, with the additional baffle plates 13 and additional fluid flow openings 12 described in more detail below. The baffle plates 5 or additional baffle plates 13 can, for example, be arranged above the respective fluid flow opening 4 or additional fluid flow opening 12 and be curved downwards accordingly.

[0041] In the examples shown, a plurality of fingers 6 spaced apart from one another in the circumferential direction of the baffle plate 5 are formed on a circumference of the respective baffle plate 5. The fingers 6 are formed on a circumferential section at a free end of the baffle plate 5 facing away from the spray nozzle body 2 and, starting from this free end, at least over a partial section of the respective lateral circumferential section in the direction of the spray nozzle body 2 on the circumference of the respective baffle plate 5.

[0042] The respective baffle plate 5 thus has, in particular, a plant leaf shape, in particular a deciduous tree leaf shape. The baffle plates 5 can be shaped identically or differently.

[0043] The described contour, in particular the circumferential contour, of the respective baffle plate 5 is formed, for example, by means of laser beam cutting, water jet cutting, machining or in another way.

[0044] The described curved shape of the respective baffle plate 5 is formed, for example, by forming in a die. Bending radii are specified in particular depending on the cleaning area to be realized and thus depending on the spray pattern and corresponding jet distribution required for this purpose.

[0045] In possible embodiments, the respective baffle plate 5 has a slot 7 with a closed slot circumference, as shown by way of example in the Figures 1 to 4 , 6 and 8 to 11shown. In the examples shown, the slot 7 extends in the length direction of the baffle plate 5, is spaced from the spray nozzle body 2 and from the circumferential section of the free end of the baffle plate 5 facing away from the spray nozzle body 2, and is formed centrally in the width direction in the baffle plate 5 and spaced from both lateral circumferential sections. In other embodiments not shown here, other orientations of the slot 7 are also possible. Alternatively or in addition to this slot 7, the respective baffle plate 5 can, for example, have a plurality of holes.

[0046] In the exemplary embodiment shown in accordance with Figure 6The respective baffle plate 5 is aligned rotated about a radial axis of the spray nozzle body 2. This means that the two lateral circumferential sections of the respective baffle plate 5 do not have the same height position relative to the upper end face of the spray nozzle body 2, but rather one lateral circumferential section of the respective baffle plate 5 is positioned higher than the other lateral circumferential section.

[0047] The baffles 5 are arranged in particular on the circumference of a retaining ring 8, as shown for example in Figure 1 This retaining ring 8 is attached to the lower end face of the spray nozzle body 2. The retaining ring 8 is attached to the spray nozzle body 2, for example, by means of a clamp connection.

[0048] In the example shown, this is done by means of a clamping bolt 9 on the lower end face of the spray nozzle body 2, onto which the retaining ring 8 having a through-opening is pushed or, in the other examples, is already pushed, and by means of a clamping element 10, shaped here as a cap, which is then pushed onto the clamping bolt 9 or, in the other examples, is already pushed on. The clamping element 10 is then held on the clamping bolt 9, for example, in a force-fitting manner, for example by clamping the clamping bolt 9 in the clamping element 10, and / or in a form-fitting manner, for example by locking the clamping element 10 with the clamping bolt 9. The retaining ring 8, which has the baffle plates 5, is then held on the lower end face of the spray nozzle body 2 by means of the clamping element 10, in particular clamped between the clamping element 10 and the spray nozzle body 2.

[0049] In order to avoid a rotation of the retaining ring 8 in the circumferential direction of the spray nozzle body 2 and thus a changed alignment of the baffles 5 relative to the fluid flow openings 4, a locking mechanism is provided in particular between the retaining ring 8 and the spray nozzle body 2, for example in the form of corresponding and interlocking locking formations on the spray nozzle body 2 on the one hand and on the retaining ring 8 on the other hand.

[0050] As an alternative to the clamp connection, the retaining ring 8 can be attached to the spray nozzle body 2, for example, by means of a press connection, plug connection, screw connection, welded connection or adhesive connection.

[0051] In the embodiment according to Figure 7 the fingers 6 of the respective baffle plate 5 each have at least one branching in the direction of a free end, ie the respective finger 6 is divided into several branch fingers 11.

[0052] In the embodiment according to the Figures 8 and 9 The cylindrical shell of the spray nozzle body 2 has, in the axial direction of the spray nozzle body 2, at least one plurality of further fluid flow openings 12 arranged at the same height and distributed over the circumference of the spray nozzle body 2, spaced apart from the plurality of fluid flow openings 4. Arranged at the same height here also means, in particular, that the further fluid flow openings 12 are at the same distance from the upper end face of the spray nozzle body 2. They are thus also arranged in a ring shape around the spray nozzle body 2.

[0053] In the example shown, the further fluid flow openings 12 are arranged above the fluid flow openings 4, i.e. the fluid flow openings 4 have a greater distance to the upper end face of the spray nozzle body 2 than the further fluid flow openings 12.

[0054] Arranged on the spray nozzle body 2 are a number of additional baffle plates 13 corresponding to the number of additional fluid flow openings 12. These additional baffle plates 13 are also arranged distributed around the circumference of the spray nozzle body 2. Here, too, each additional fluid flow opening 12 is assigned exactly one of the additional baffle plates 13. This means that each additional fluid flow opening 12 is assigned its own additional baffle plate 13, and the additional baffle plates 13 are arranged such that the respective additional fluid flow opening 12 is precisely and exclusively aligned with the additional baffle plate 13 assigned to it, in particular such that a spray jet emitted by the respective additional fluid flow opening 12 impinges exclusively on the baffle plate 13 assigned to the additional fluid flow opening 12.

[0055] The further baffles 13 are also each arranged on the spray nozzle body 2, in particular projecting from the latter in the radial direction thereof, ie they are each aligned, at least substantially, in the radial direction of the spray nozzle body 2.

[0056] The additional baffles 13 are also spaced apart from one another in the circumferential direction of the spray nozzle body 2, i.e., adjacent additional baffles 13 in the circumferential direction of the spray nozzle body 2 do not touch one another. Each additional baffle 13 is arranged on the spray nozzle body 2 below the additional fluid flow opening 12 to which it is assigned.

[0057] The further baffles 13 are in particular designed, in particular shaped, and manufactured in such a way and, for example, also fastened to the spray nozzle body 2 in the same or similar manner as the baffles 5 described above.

[0058] In this embodiment, exemplified in the Figures 8 and 9, the spray device 1 therefore has not only a single combination of fluid flow openings 4 and associated baffle plates 5, which are designed and arranged in the manner described above, but also at an axial distance therefrom on the spray nozzle body 2, i.e. below or, in the example shown, above, at least one further combination of fluid flow openings 12 and associated baffle plates 13, which are designed and arranged in the manner described above. This is therefore a multi-level embodiment of the fluid flow openings 4, 12 and associated baffle plates 5, 13. More than two such combinations of fluid flow openings 4, 12 and associated baffle plates 5, 13 can also be provided, which are arranged axially offset from one another on the spray nozzle body 2. The shape and orientation of the baffle plates 5, 13 can be the same in all of these combinations or can differ between these combinations.

[0059] In one possible embodiment, it can also be provided that the baffle plates 5, 13 of at least one of the above-mentioned combinations of fluid flow openings 4, 12 and associated baffle plates 5, 13 are not curved upwards, as described above, but in the opposite direction, i.e., downwards. This respective baffle plate 5, 13 is then arranged in particular above the fluid flow opening 4, 12 associated with it. The spray jet of the fluid flow opening 4, 12 is then deflected downwards by the baffle plate 5, 13.

[0060] In the exemplary embodiment shown in accordance with the Figures 8 and 9 a distance between adjacent baffle plates 5 in the circumferential direction of the spray nozzle body 2 corresponds to a distance between adjacent further baffle plates 13 in the circumferential direction of the spray nozzle body 2, ie the adjacent baffle plates 5 have the same distance from one another as the adjacent further baffle plates 13.

[0061] In the exemplary embodiment shown in accordance with the Figures 8 and 9 the plurality of baffles 5 are arranged offset in the circumferential direction of the spray nozzle body 2 relative to the plurality of further baffles 13. This then also applies correspondingly to the associated fluid flow openings 4, 12, i.e. the plurality of fluid flow openings 4 are also arranged offset in the circumferential direction of the spray nozzle body 2 relative to the plurality of further fluid flow openings 12. The baffles 5 are thus arranged offset in the circumferential direction and in the axial direction of the spray nozzle body 2 relative to the further baffles 13. Likewise, the fluid flow openings 4 are arranged offset in the circumferential direction and in the axial direction of the spray nozzle body 2 relative to the further fluid flow openings 12.

[0062] In the exemplary embodiment shown in accordance with the Figures 8 and 9the plurality of baffles 5 are arranged offset in the circumferential direction of the spray nozzle body 2 relative to the plurality of further baffles 13 such that one baffle 5 is arranged between two further baffles 13 in the circumferential direction of the spray nozzle body 2.

[0063] The Figures 8 and 9show a simplified embodiment of the spray device 1. Here, the spray nozzle body 2 has only one fluid flow opening 4 on the lower end face and only one baffle plate 5, which is designed, in particular shaped, and manufactured in the manner described above, like the baffle plates 5 described above. The baffle plate 5 is arranged here on an edge of the lower end face and / or the fluid flow opening 4 and extends downwards in the axial direction of the spray nozzle body 2 and simultaneously in the radial direction of the spray nozzle body 2 beyond the fluid flow opening 4. It is therefore curved in both these directions. The baffle plate 5 is thus arranged in front of the fluid flow opening 4 at a distance from the fluid flow opening 4 in the spray direction of the fluid flow opening 4. The sprayed fluid is thus deflected laterally and upwards by the baffle plate 5. LIST OF REFERENCE SYMBOLS

[0064] 1Sprühvorrichtung 2Sprühdüsenkörper 3Anschlussausformung 4Fluiddurchströmöffnung 5Prallblech 6Finger 7Schlitz 8Haltering 9Klemmbolzen 10Klemmelement 11Zweigfinger 12weitere Fluiddurchströmöffnung 13weiteres Prallblech BBreight FFluid Llength SBspray pattern

Claims

1. A spray device (1) comprising a hollow cylindrical spray nozzle body (2) which has a connection formation (3) for connection to a fluid supply line on an upper end face and is closed on the opposite lower end face, wherein a cylinder jacket of the spray nozzle body (2) has a plurality of fluid flow openings (4) arranged at the same height and distributed over a circumference of the spray nozzle body (2), wherein a number of baffle plates (5) corresponding to the number of fluid flow openings (4) are arranged on the spray nozzle body (2), wherein the baffle plates (5) are arranged distributed around the circumference of the spray nozzle body (2) and exactly one of the baffle plates (5) is assigned to each fluid flow opening (4), wherein the baffle plates (5) are spaced apart from one another in the circumferential direction of the spray nozzle body (2),wherein a length (L) of the respective baffle plate (5) in the radial direction of the spray nozzle body (2) is greater than a width (B) of the respective baffle plate (5), wherein the respective baffle plate (5) is curved in a spoon shape., 2. Spray device (1) according to claim 1, wherein a plurality of fingers (6) spaced apart from one another in the circumferential direction of the baffle plate (5) are formed on a circumference of the respective baffle plate (5).

3. Spray device (1) according to claim 2, wherein the fingers (6) are formed on a peripheral section at a free end of the baffle plate (5) facing away from the spray nozzle body (2) and, starting from this free end, at least over a partial section of the respective lateral peripheral section in the direction of the spray nozzle body (2) on the circumference of the respective baffle plate (5) 4. Spray device (1) according to claim 2 or 3, wherein the fingers (6) each have at least one branching in the direction of a free end.

5. Spray device (1) according to one of the preceding claims, wherein the respective baffle plate (5) has holes with a closed hole circumference and / or at least one slot (7) with a closed slot circumference.

6. Spray device (1) according to one of the preceding claims, wherein the respective baffle plate (5) is aligned rotated about a radial of the spray nozzle body (2).

7. Spray device (1) according to one of the preceding claims, wherein the baffle plates (5) are arranged on the circumference of a retaining ring (8) and wherein the retaining ring (8) is fastened to the lower end face of the spray nozzle body (2).

8. Spray device (1) according to claim 7, wherein the retaining ring (8) is fastened to the spray nozzle body (2) by means of a clamping connection, press connection, plug connection, screw connection, welded connection or adhesive connection.

9. Spray device (1) according to one of the preceding claims, wherein the cylinder jacket of the spray nozzle body (2) has at least one plurality of further fluid flow openings (12) spaced apart from the plurality of fluid flow openings (4) in the axial direction of the spray nozzle body (2) and arranged at the same height and distributed over the circumference of the spray nozzle body (2), wherein a number of further baffle plates (13) corresponding to the number of further fluid flow openings (12) are arranged on the spray nozzle body (2), wherein the further baffle plates (13) are arranged distributed around the circumference of the spray nozzle body (2) and exactly one of the further baffle plates (13) is assigned to each further fluid flow opening (12), wherein the further baffle plates (13) are spaced apart from one another in the circumferential direction of the spray nozzle body (2).

10. Spray device (1) according to claim 9, wherein a distance between adjacent baffle plates (5) in the circumferential direction of the spray nozzle body (2) corresponds to a distance between adjacent further baffle plates (13) in the circumferential direction of the spray nozzle body (2).

11. Spray device (1) according to claim 9 or 10, wherein the plurality of baffles (5) are arranged offset in the circumferential direction of the spray nozzle body (2) relative to the plurality of further baffles (13).

12. Spray device (1) according to claim 11, characterized in that the plurality of baffle plates (5) are arranged offset in the circumferential direction of the spray nozzle body (2) relative to the plurality of further baffle plates (13) such that one baffle plate (5) is arranged between two further baffle plates (13) in the circumferential direction of the spray nozzle body (2).

13. Spray device (1) according to one of the preceding claims, characterized in thatthe respective baffle plate (5) is curved in the direction of a circumferential section at a free end of the baffle plate (5) facing away from the spray nozzle body (2) in such a way that this circumferential section is curved in the direction of the fluid flow opening (4) at this free end facing away from the spray nozzle body (2).

14. Spray device (1) according to one of the preceding claims, characterized in that the respective baffle plate (5) is curved in the width direction starting from a central region to a respective lateral peripheral edge.

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