Outlet bend assembly

Abstract

The invention relates to an outlet bend assembly (100) for discharging a multi-phase flow medium, in particular consisting of water, solids, and air, wherein the outlet bend assembly comprises a pipeline (101) that has a first horizontal line section (102) which extends along a first central line (M102) that runs in the horizontal (H) in the installed position, a fall pipe section (103) which adjoins the first horizontal line section (102) and extends along a fall pipe line (F) that runs downwards in the installed position, and a second horizontal line section (104) which adjoins the fall pipe section (103) and extends along a second central line (M104) that runs in the horizontal (H) in the installed position. The second central line (M104) lies below the first central line (M102) in the installed position, and the flow medium is guided through the pipeline (101) along a flow direction (A) in the direction of the first central line (M102), the fall pipe line (F), and the second central line (M104). The fall pipe section (103) and / or the second horizontal line section (104) is equipped with at least one guide element (105, 307, 406) which is designed and arranged such that the flow medium can be guided substantially in the flow direction (A) and a movement transverse to the flow direction (A) is partly suppressed.

Description

[0001] TITLE

[0002] Exit bend arrangement

[0003] TECHNICAL FIELD

[0004] The present invention relates to an outlet bend arrangement for discharging a multiphase flow medium, in particular consisting of water, solids and air, according to claim 1.

[0005] STATE OF THE ART

[0006] It is known from the prior art that outlet bend assemblies can be arranged between a sanitary article and a sewer line. Such outlet bend assemblies typically comprise several pipe sections arranged one behind the other to carry wastewater away from the sanitary article. The pipe sections are typically assembled on-site at the construction site. The greatest possible flushing performance is desirable. This means that the outlet bend assembly redirects the flow medium so that it can travel the greatest possible distance within the sewer line when flowing into a horizontal sewer line.

[0007] PRESENTATION OF THE INVENTION

[0008] Based on this prior art, the invention is based on the object of providing an outlet bend assembly that overcomes the disadvantages of the prior art. In particular, the present invention is based on the object of providing an outlet bend assembly with improved hydraulic properties.

[0009] These and other objects are achieved by the outlet bend according to claim 1. Accordingly, an outlet bend arrangement for discharging a multi-phase flow medium, in particular consisting of water, solids and air, comprises a pipeline which has a first horizontal line section which extends along a first center line which runs horizontally in the installed position, a downpipe section which adjoins the first horizontal line section and extends along a downpipe line which runs downwards in the installed position, and a second horizontal line section which adjoins the downpipe section and extends along a second center line which runs horizontally or with a gradient to the horizontal in the installed position.

[0010] The second center line lies below the first center line in the installed position. The flow medium is guided through the pipeline along a flow direction in the direction of the first center line, the downpipe line, and the second center line. At least one guide element is arranged in the downpipe section and / or the second horizontal pipe section. The at least one guide element is designed and arranged such that the flow medium can be guided essentially in the flow direction and partially prevents movement transverse to the flow direction.

[0011] The first horizontal pipe section extends from a pipe inlet to a reference plane which runs vertically. The downpipe section begins at said reference plane and extends to a further reference plane which runs vertically. The second horizontal pipe section then extends away from this further reference plane. The two reference planes are preferably inclined at an angle to one another. From the first reference plane, the downpipe line runs such that in the installed position it is preferably oriented downwards at every point. This does not mean that the downpipe line has to run in the vertical direction; rather, the downpipe line is positioned such that it extends downwards at an angle to a horizontal plane. The downpipe line is preferably at an angle of less than 45° to the vertical direction.

[0012] When installed, the downpipe line runs at an angle downwards relative to a horizontal plane. In other words, the downpipe line is not horizontal.

[0013] The gradient of the second horizontal line section is preferably a maximum of 10° to the horizontal.

[0014] The downpipe line can be composed of segments that run along different line shapes. The segments can be straight or curved.

[0015] The downpipe line connects the first centerline and the second centerline.

[0016] The center lines and the downpipe line mentioned herein are to be understood as geometric lines, with the first horizontal pipe section, the downpipe section, and the second horizontal pipe section being geometrically extruded along these lines. This means that the first horizontal pipe section, the downpipe section, and the second horizontal pipe section extend along these guidelines in the sense of geometric extrusion.

[0017] Preferably, the guide element is designed in such a way that it changes the cross-section of the pipeline.

[0018] The guide element can protrude into the cross-section of the pipeline or it can be designed in such a way that the cross-section of the pipeline as such is changed.

[0019] Preferably, viewed in the vertical direction, the first center line runs at a distance of 70 to 420 millimeters, in particular 90 to 370 millimeters, from the second center line.

[0020] In a projection onto a horizontal reference plane, the first center line and the second center line, in one variant, run at an angle inclined to one another. The angle is preferably in the range of 45° to 135°. The angle is particularly preferably 90°. The angle is particularly preferably 90° if the fall line is inclined at 45° to the horizontal. The angle can be arbitrary if the fall line runs vertically. In another variant, the first center line and the second center line run parallel to one another in a projection onto a horizontal reference plane.

[0021] Preferably, the downpipe section has an upper deflection section which directly adjoins the first horizontal pipe section, wherein the upper deflection section deflects the flow medium downwards from a flow running in the horizontal direction.

[0022] Preferably, the downpipe segment in the deflection section is formed as an arc, in particular a circular arc. The angle of the arc or circular arc is preferably 90°.

[0023] Preferably, the downpipe section has a straight section in which the downpipe line extends along a straight segment. The straight segment extends along a geometric straight line. The straight segment preferably runs in a reference plane that is perpendicular to a vertical plane passing through the first center line and in the vertical.

[0024] Preferably, the downpipe section has a lower deflection section, which is directly followed by the second horizontal pipe section, wherein the lower deflection section deflects the flow medium into a flow running horizontally.

[0025] Preferably, the downpipe segment in the deflection section is formed as an arc. The arc angle of the arc or circular arc is preferably less than 60°, in particular between 35° and 55°, particularly preferably 45°.

[0026] The at least one guide element can be arranged in various ways. In a first variant, one of the guide elements extends from the upper deflection section into the downpipe section. In a second variant, one of the guide elements extends from the downpipe section into the lower deflection section. In a third variant, one of the guide elements extends from the downpipe section over the lower deflection section into the second horizontal section. In a fourth variant, one of the guide elements extends within the downpipe section.

[0027] The above-mentioned variants of the guide elements can also be combined with each other as desired.

[0028] In a first preferred embodiment, the first horizontal pipe section and an upper region of the downpipe section are provided by an outlet bend. A lower region of the downpipe section, which adjoins the upper region of the downpipe section, and the second horizontal pipe section are preferably provided by a diverting pipe section.

[0029] In a second preferred embodiment, the first horizontal pipe section and an upper region of the downpipe section are provided by an outlet bend. A middle region of the downpipe section, which adjoins the upper region of the downpipe section, is provided by a diverting pipe section. A lower region of the downpipe section, which adjoins the middle region of the downpipe section, and the second horizontal pipe section are provided by another diverting pipe section.

[0030] In use, the fluid flows through the pipe in such a way that it does not completely fill the cross-section, but essentially fills half or less of it. This is a partially filled pipe, which can be used in a partially filled pipe system.

[0031] In the following, a first particularly preferred development of the above-mentioned deflection pipe section or of the further deflection pipe section according to the first and second embodiments is described.

[0032] The first particularly preferred development of the deflection pipe section or of the further deflection pipe section comprises a first pipe section extending along a first central axis, a deflection section adjoining this first pipe section and having a deflection outer side and a deflection inner side, which deflection section deflects the flow medium relative to the first pipe section, and a second pipe section adjoining the deflection section and extending along a second central axis. The at least one guide element is a guide structure arranged on the inside of the deflection section on the deflection outer side for guiding the flow medium in the deflection section. The first pipe section has an outflow edge from which the flow medium partially detaches during the flow process, wherein the outflow edge is positioned relative to the guide structure in such a way that the flow medium can be guided from the outflow edge to the guide structure.

[0033] After the flow medium has separated at the discharge edge, it flows toward the guide section, where the flow medium is redirected from the first pipe section into the second pipe section by the guide section. The arrangement of the guide section, onto which the flow medium impinges from the discharge edge, allows for a low-loss redirection of the flow medium, allowing it to enter the second pipe section and a wastewater pipe connected to the second pipe section at a higher velocity. Depending on the installation position of the diverting pipe section, different separation processes can occur at the discharge edge.If the first central axis is inclined to the vertical in the installed position, the water is guided by the separation edge on the inner wall of the deflection pipe section and then strikes the guide structure more laterally. Due to the effect of gravity, the solids will fall downwards essentially vertically from the discharge edge, causing them to strike the guide section more centrally. During operation, however, there will not be a complete separation between the water and the solids; instead, a mixture of water and solids will be guided. This means that some of the water will also flow centrally onto the guide structure, while some of the solids will also strike the guide structure from the side.

[0034] This ensures that the same rinsing performance can be achieved with a smaller rinsing water volume as with a higher rinsing water volume, or that an improved rinsing performance can be achieved with the same rinsing water volume.

[0035] The drainage edge is preferably curved. The drainage edge preferably lies in a plane that, when viewed in the installed position, is oriented at an angle to a horizontal plane. The drainage edge is preferably provided by the second pipe, with the drainage edge simultaneously being the pipe end.

[0036] Preferably, a portion of the flow medium flows as a free jet away from the discharge edge and impinges on the guide structure as a free jet, while another portion of the flow medium is guided laterally through the side walls of the respective section. Regarding the flow direction, the jet flows unguided at the front, i.e., toward the second pipe section, and at the rear, thus forming the free jet.

[0037] Preferably, the discharge edge is positioned at a certain distance from the guide structure. This means that a portion of the flow medium flows over this distance as a free jet.

[0038] Particularly preferably, the space between the drainage edge and the guide structure is designed as an open space. This open space can be provided, for example, by a third pipe section, as explained below, or by an indentation.

[0039] Preferably, the guide structure extends into an area that, when viewed in the installed position of the deflection pipe section, lies below the discharge edge. In other words, even those parts of the multiphase flow medium that reach the discharge edge at low velocity and fall downwards from the discharge edge in a more vertical direction will encounter the guide structure.

[0040] When the deflection pipe section is installed, the second central axis is essentially horizontal, and the guide structure slopes downwards relative to the horizontal in the direction of flow. The fluid therefore flows downwards along the guide structure. The first central axis is inclined at an angle to the horizontal.

[0041] Viewed in a sectional plane spanned by the first central axis and the second central axis, a lower intersection point between a starting edge of the guide structure and an upper intersection point between the discharge edge and the sectional plane lie on a common imaginary straight line. In a first preferred variant, the straight line runs at a right angle to the second central axis. In a second preferred variant, the straight line runs at an angle to the second central axis, wherein the angle is formed such that the second intersection point is offset from the first intersection point of the second pipe section opposite to the flow direction of the flow medium. This means that the second intersection point lies behind the first intersection point when viewed in the flow direction.

[0042] Preferably, the diverting pipe section has a third pipe section, wherein the third pipe section extends along a third central axis. The third central axis runs parallel, offset, or collinear with the second central axis. The third pipe section can be connected to another wastewater pipe, wherein the flow medium flowing in from there is guided through the diverting pipe section to the second pipe section.

[0043] Preferably, the third pipe section, viewed in the installed position, is located below the first pipe section and opens into the first pipe section and / or the second pipe section. In the installed position, the deflection pipe section is preferably positioned such that the second central axis and the third central axis extend horizontally, and the first central axis is inclined at an angle to the horizontal. The guide structure has a gradient in the flow direction from the third pipe section into the second pipe section.

[0044] Preferably, a shoulder is arranged between the third pipe section and the second pipe section such that, in the installed position, the flow medium flows downwards over this shoulder into the second pipe section, counter to the vertical direction. The arrangement of the shoulder provides the flow medium with a gradient, which ensures that the flow medium flowing from the third pipe section into the second pipe section is redirected with as little or no loss as possible. The shoulder is preferably provided by the guide structure.

[0045] Preferably, when viewed in the installed position, the third central axis is located above the second central axis.

[0046] Preferably, an offset between the second central axis and the third central axis corresponds to at most half the diameter of the third pipe section.

[0047] Preferably, the diameter of the third pipe section is smaller than the diameter of the first pipe section and / or the second pipe section. In other variants, it is also conceivable for all pipe sections to have the same diameter.

[0048] Particularly preferably, the diameters of the pipe sections are in a range of 75 to 110 millimeters. In a particularly preferred variant, the diameter of the first pipe section is 90 millimeters, the diameter of the second pipe section is 90 millimeters, and the diameter of the third pipe section is 75 millimeters. In another particularly preferred variant, the diameter of the first pipe section is 90 millimeters, the diameter of the second pipe section is 110 millimeters, and the diameter of the third pipe section is 75 millimeters. Other diameters are also conceivable.

[0049] Preferably, the guide structure extends from the second pipe section into the third pipe section in such a way that the guide structure provides a transition between the third pipe section and the second pipe section. The second pipe section and the third pipe section are preferably arranged relative to one another in such a way that the guide structure has a gradient when viewed in the installed position and / or in the flow direction of the multi-phase flow medium. In particular, as already mentioned above, the guide structure extends into an area which, when viewed in the installed position of the deflection pipe section, lies below the discharge edge. The gradient of the guide structure prevents the flow medium, which flows from the first pipe section onto the guide structure, from flowing back towards the third pipe section.

[0050] Preferably, the inner wall of the second pipe section has a base line. The inner wall of the third pipe section also has a base line. The base line of the third pipe section is spaced from the base line of the second pipe section at a distance transverse to the base lines, wherein the distance is preferably between 1 / 10 and 6 / 10, in particular between 2 / 10 and 5 / 10, of the diameter of the second pipe section. The distance is preferably greater than 5 millimeters or greater than 10 millimeters.

[0051] The guide structure preferably has a central guide section and two lateral guide sections, with one of the lateral guide sections being located laterally to the central guide section. The central guide section is arranged offset from the lateral guide sections with respect to the interior of the deflection section. The offset arrangement of the central guide section relative to the two lateral guide sections has the advantage that the flow medium can be guided in the flow direction via the deflection section. In the installed position in which the first central axis is inclined at an angle to the vertical or perpendicular direction and the second central axis is substantially perpendicular to the vertical or perpendicular direction, part of the flow medium will flow from the separation edge onto one of the lateral guide sections and another part will flow from the separation edge onto the central guide section.Further details of these guide sections are explained below, whereby these details can optionally be used on the deflection pipe piece according to claim 1 or claim 9.

[0052] The second particularly preferred development of the deflection pipe section or the further deflection pipe section comprises a first pipe section extending along a first central axis, a deflection section adjoining this first pipe section and having a deflection outer side and a deflection inner side, which deflection section deflects the flow medium relative to the first pipe section, and a second pipe section adjoining the deflection section and extending along a second central axis. The at least one guide element is a guide structure arranged on the inside of the deflection section on the deflection outer side for guiding the flow medium in the deflection section. The central guide section is arranged offset from the lateral guide sections with respect to the interior of the deflection section.The offset arrangement of the central guide section to the two lateral guide sections has the advantage that the flow medium can be guided in the flow direction via the deflection section.

[0053] In the following, optional features for the deflection pipe section or the further deflection pipe section according to the first and second further developments are described.

[0054] Preferably, the central guide section is located between the two lateral guide sections. Preferably, the guide sections merge into one another over the length of the guide structure and jointly open into the cylindrical region of the second tube section.

[0055] Preferably, portions of the central guide section or the central guide section are offset into the interior space relative to portions of the lateral guide sections or the lateral guide sections. Viewed in cross-section transverse to the curvature axis, the central guide section lies above the lateral guide sections.

[0056] Preferably, portions of the lateral guide sections or the lateral guide sections are offset into the interior space relative to portions of the central guide section or the central guide section. Viewed in cross-section transverse to the curvature axis, the central guide section lies below the lateral guide sections.

[0057] Preferably, viewed in cross-section transverse to the first or second central axis, the width of the central guide section decreases with increasing distance from the first pipe section or toward the second pipe section. The width of the lateral guide sections increases with increasing distance from the first pipe section or toward the second pipe section.

[0058] Preferably, the distance between the central guide section and the lateral guide sections, viewed perpendicular to the second central axis and in a reference plane spanned by the first central axis and the second central axis, decreases with increasing distance from the first tube section. Particularly preferably, the guide sections merge to a common height; in particular, the guide sections merge into the cylindrical region of the second tube section.

[0059] Preferably, the distance in the transition region between the deflection section and the second pipe section tends towards zero, the minimum distance being reached at the entrance to the second pipe section.

[0060] Preferably, the central guide section has a guide surface and a wall surface is arranged laterally to the guide surface, which wall surface connects the guide surface to the lateral guide sections.

[0061] Preferably, the guide surface is designed in cross-section transverse to the first or second central axis in such a way that a recess is provided which extends outwards with respect to the side edges which laterally delimit the guide surface with respect to the interior of the deflection section.

[0062] In one variant, the recess has the shape of a concave curve, extending from side edge to side edge of the guide surface. In another variant, the recess has the shape of a V or a U.

[0063] Preferably, the depth of the recess with respect to the side edges extends transversely to the first or second central axis, seen from the first pipe section to the second pipe section, and is different across the deflection section.

[0064] Particularly preferably, the depth increases in a first partial area and decreases in a second partial area. Alternatively, the depth decreases across the deflection section with increasing distance from the first pipe section.

[0065] In the following, further optional features of the deflection pipe section or the further deflection pipe section according to the first and second developments are described:

[0066] Preferably, the deflection pipe section is designed such that the flow medium is deflected by the angle (a, alpha) between the first central axis and the second central axis. The guide structure is arranged and designed such that, viewed in a sectional plane spanned by the first central axis M1 and the second central axis M2, at the point of impact of the flow medium on the guide structure, the guide structure provides a deflection by a first angular part (a1, alpha1) of the said angle (a, alpha), and that at the transition from the guide structure to the second pipe section, the guide structure (7) provides a deflection by a second angular part (a2, alpha2) of the said angle (a, alpha).

[0067] Preferably, the guide structure runs along a base line in the region of the transition to the second pipe section, wherein the base line is a straight line, and wherein the straight line runs at an angle (ß, beta) of 160° to 175° to the base line of the second pipe section

[0068] Preferably, the base line of the guide structure has a curved section, wherein the curved section marks the beginning of the guide structure.

[0069] Preferably, the curved section merges into the section of the base line, which is a straight line.

[0070] The expression "inside the deflection section" with regard to the arrangement of the guide structure is to be understood as meaning that the guide structure is arranged at least partially in the deflection section and that the guide structure can protrude into the other pipe sections on both sides of the deflection section.

[0071] Preferably, the guide structure is arranged exclusively on the outer side of the deflection section and not on the inner side. The outer side of the deflection section is the side of the deflection section that has the largest deflection radius, and the inner side of the deflection section is the side of the deflection section that has the smallest deflection radius.

[0072] The second central axis is inclined at an angle to the first central axis. The flow medium is deflected around the deflection section by this angle. The angle (35, delta) between the first central axis and the second central axis is preferably greater than 120°. The angle is particularly preferably in the range of 125° to 145°, in particular 135°.

[0073] Preferably, the guide structure extends completely over the deflection section. This means that the guide structure has a length that essentially corresponds to that of the deflection section. Alternatively, the guide element or guide wall extends partially over the deflection section.

[0074] Regardless of the length of the guide structure within the deflection section, the guide element or guide wall can extend into one or all of the pipe sections. Particularly preferably, the guide structure is arranged such that it extends from the deflection section into the second pipe section.

[0075] Particularly preferably, the guide structure is provided by an indentation from the outside in the area of ​​the deflection outer side.

[0076] Particularly preferably, the first pipe section and / or the second pipe section have a cylindrical, in particular a circular cylindrical, cross-section.

[0077] The deflection pipe section, i.e., the first pipe section, the deflection section, and the second pipe section, as well as the guide structure and the flow divider, are preferably formed in one piece. Particularly preferably, the deflection pipe section is made of plastic, in particular by a blow molding process or an injection molding process. In another particularly preferred variant, multi-part production is also conceivable, with the individual parts being welded together, so that a one-piece structure can be created. For example, the deflection section can be produced by a blow molding process, and the two pipe sections by an injection molding process, with the parts then being welded together.

[0078] Preferably, said pipe sections have a cylindrical portion. The cylindrical pipe section preferably provides a socket portion for inserting a pipe or for welding a pipe.

[0079] In summary, the diverter bend offers the advantage of reducing the hydraulic resistance of the diverter due to the arrangement of the guide structure and other optional features. This increases the flushing performance of the sewer line connected to the diverter bend.

[0080] A third particularly preferred development of the above-mentioned deflection pipe section or of the further deflection pipe section according to the first and second embodiments is described below. The deflection pipe section according to the third development comprises a first pipe section extending along a first central axis, a deflection section adjoining this first pipe section and having a deflection outer side and a deflection inner side, which deflection section deflects the flow medium with respect to the first pipe section, and a second pipe section adjoining the deflection section and extending along a second central axis. The at least one guide element is provided by a guide structure arranged inside the deflection section on the deflection outer side for guiding the flow medium in the deflection section. The guide structure has a constriction on the deflection outer side.The constriction creates two surface sections opposite each other relative to the center axis of the deflection section. The constriction reduces the pipe cross-section of the deflection section. At the point where the pipe cross-sectional area is minimal, the surface sections each extend along a straight line, viewed in a sectional plane perpendicular to the center axis of the deflection section. The straight lines are inclined to each other at an angle (α, alpha). This means that the straight line of one surface section is inclined at the said angle to the straight line of the other surface section.

[0081] The constriction, with its straight lines or surface sections running at an angle to each other, has the advantage that the flow medium is channeled through the constriction as it flows through the deflection section. This prevents lateral sloshing along the inner walls of the deflection pipe section. Furthermore, the flow in the deflection section is channeled in the direction of flow by the guide structure. By preventing sloshing and / or channeling, lateral flow components are eliminated, so that less energy is dissipated transversely in the main flow.

[0082] Due to the constriction, the cross-sectional area of ​​the deflection section is reduced in the area of ​​the constriction.

[0083] Particularly preferably, the guide structure or the constriction is provided by an indentation from the outside in the area of ​​the deflection outer side.

[0084] Preferably, the guide structure is arranged exclusively on the outer side of the deflection section and not on the inner side. The outer side of the deflection section is the side of the deflection section that has the largest deflection radius, and the inner side of the deflection section is the side of the deflection section that has the smallest deflection radius.

[0085] Preferably, the minimum pipe cross-sectional area corresponds to 80% to 95%, in particular 85% to 92%, of the cross-sectional area of ​​the first pipe section or the second pipe section.

[0086] When viewed in the installed position, the deflection pipe section is preferably positioned such that the deflection outer side is below the deflection inner side with respect to the vertical direction.

[0087] The cutting plane mentioned above runs perpendicular to the central axis of the deflection section.

[0088] The first pipe section is inclined at an angle (b, beta) to the second pipe section, whereby the first central axis is inclined at the specified angle to the second central axis. The angle is greater than 120°. The angle is particularly preferably in the range of 125° to 145°, in particular 135°. The deflection pipe section is accordingly designed such that the flow medium is deflected by the angle (b, beta) between the first central axis and the second central axis.

[0089] Particularly preferably, the first pipe section and / or the second pipe section have a cylindrical, in particular a circular cylindrical, cross-section.

[0090] The deflection pipe section, i.e., the first pipe section, the deflection section, and the second pipe section, are preferably formed as a single piece. The deflection pipe section is particularly preferably made of plastic, in particular by a blow molding or injection molding process.

[0091] Preferably, said pipe sections have a partial region that is cylindrical. One or both of the cylindrical partial regions can be designed as a sleeve for plugging in a pipe or for welding on a pipe. One or both of the cylindrical partial regions can be designed as a jacket surface for projecting into a sleeve of a pipe or for welding on a pipe. In the installed position, the deflection pipe section is preferably positioned such that the first central axis runs at an angle to the horizontal and that the second central axis runs horizontally. The guide structure has a gradient in the flow direction from the first pipe section into the second pipe section.

[0092] Preferably, the two surface sections are V-shaped when viewed in the said cutting plane.

[0093] In a first variant, the surface section transitions from the straight line at the minimum pipe cross-sectional area toward the first pipe section to the shape of the first pipe section, and toward the second pipe section to the shape of the second pipe section. This is preferably a continuous transition.

[0094] In a second variant, a sub-area of ​​each surface segment is defined by a set of adjacent straight lines, starting from the straight line at the minimum pipe cross-section. This means that a large number of straight lines are distributed in the flow direction, thus defining the respective surface segment in terms of its area.

[0095] A family is defined as a multitude of straight lines distributed across the surface segments, thus defining or spanning the surface segments. Geometrically speaking, each straight line lies within the area of ​​the surface segment.

[0096] Starting from the straight lines of the family of straight lines that define the end of the sub-area towards the first pipe section and the second pipe section, the surface section changes towards the first pipe section to the shape of the first pipe section and towards the second pipe section to the shape of the second pipe section.

[0097] Preferably, the two surface sections extend over a partial length of the deflection section.

[0098] The partial length is preferably greater than 50% of the total length of the deflection section.

[0099] The intersection point of two opposite straight lines preferably lies outside the deflection section. The intersection point of two opposite straight lines preferably lies in a reference plane B spanned by the first central axis M1 and the second central axis M2. The intersection point therefore does not lie within the interior of the deflection section.

[0100] The center axis of the deflection section also lies in the reference plane mentioned. The reference plane runs perpendicular to the section plane mentioned.

[0101] Preferably, the constriction extends from the outer side of the deflection section to at most half the diameter of the deflection section. This means that the constriction lies in the lower half of the cross-section of the deflection section.

[0102] Preferably, the diameters of the first pipe section and / or the second pipe section are in the range of 75 to 110 millimeters.

[0103] Preferably, the deflection inner side has a substantially circular-cylindrical inner surface, which inner surface adjoins the two opposite surface sections upwards and connects the two surface sections.

[0104] Preferably, the two opposite surface sections on the outside of the deflection are connected to a surface section that is concavely rounded towards the interior.

[0105] Preferably, the cross-sectional area of ​​the deflection section in the region of the constriction is variable over the length of the constriction in the flow direction, with the cross-sectional area decreasing in the flow direction from the first pipe section to a minimum cross-sectional area and then increasing again towards the second pipe section. The change in the cross-sectional area preferably occurs continuously.

[0106] Preferably, the inside of the deflection section does not have any sharp edges or sudden cross-sectional changes.

[0107] Preferably, the region with the minimum cross-sectional area, viewed in the direction of the center axis of the deflection section, is located at a distance from the first pipe section. In one variant, the distance is selected such that the said region is closer to the first pipe section than to the second pipe section, in particular such that the distance is less than a third of the total length of the center axis of the deflection section. In particular, the distance is less than a quarter of the total length. Particularly preferably, the distance is approximately 20% of the total length. In a second variant, the distance is selected such that the said region is closer to the second pipe section than to the first pipe section, in particular such that the distance is greater than a third or a quarter of the total length of the center axis of the deflection section.In a third variant, the distance is selected such that the said area is located centrally between the first pipe section and the second pipe section.

[0108] Preferably, the first tube section has a cylindrical cross-section, and the cylindrical cross-section transitions into the constriction cross-section. The second tube section has a cylindrical cross-section, with the constriction cross-section transitioning into the cylindrical cross-section.

[0109] Preferably, the central axis of the deflection section extends along an arc, with the center of the arc located outside the deflection section. The arc can have different radii along its length. Alternatively, the arc can also have a constant radius.

[0110] A line of intersection between the inner surface of the deflection outer side and a reference plane spanned by the first central axis and the second central axis extends along a circular arc, the center of the circular arc being outside the deflection section.

[0111] An outlet bend according to the first and second embodiments is described below. The outlet bend comprises a first pipe section extending along a first central axis, a deflection section adjoining this first pipe section and having a deflection outer side and a deflection inner side, which deflection section extends along a deflection axis and deflects the flow medium with respect to the first pipe section, and a second pipe section adjoining the deflection section and extending along a second central axis. The first central axis and the second central axis extend at an angle in the range of 80 to 100°, in particular at an angle of 90°, to one another. In the installed position, the first central axis extends at right angles to the vertical direction. The outlet bend further comprises at least one guide element in the form of at least one guide wall.The guide wall extends into the cross-section of the outlet bend and has at least one side surface. The guide wall is arranged in the deflection section on the outer side of the deflection and / or in the second pipe section.

[0112] Depending on the installation position of the outlet bend, the at least one guide wall offers different advantages. Generally, the at least one guide wall is arranged in such a way that the flow medium is guided through the outlet bend with minimal flow losses.

[0113] If the outlet bend is installed in such a way that the second central axis runs in the vertical direction, the at least one guide wall provides a guide for the flow medium in the direction of the vertical direction due to its orientation.

[0114] If the outlet bend is installed so that the second central axis runs at an angle to the vertical direction, the at least one guide wall provides guidance for the flow medium, preventing the flow medium from sloshing up in the outlet bend against the vertical direction by the guide wall. This prevents rotation or partial rotation of the flow medium around the deflection axis or the second central axis, thus minimizing fluid losses.

[0115] The first central axis and the second central axis run along a geometric straight line and the deflection axis runs along a geometric arc, in particular along a circular arc.

[0116] The outlet bend also offers the advantage of being able to be installed in a variety of situations. In particular, in a situation where the second central axis is inclined to the vertical direction, the hydraulic discharge capacity can be increased compared to conventional outlet bends.

[0117] Preferably, the at least one guide wall is arranged exclusively on the outside of the deflection and not on the inside of the deflection.

[0118] When viewed in the installation position, the outlet bend is preferably positioned such that the outer side of the deflection is largely above the inner side of the deflection, as seen in the vertical direction.

[0119] Preferably, the at least one guide wall has a front end and a rear end.

[0120] In a first variant, in which the guide wall is arranged in the deflection section and in the second pipe section, the front end is in the deflection section and the rear end is in the second pipe section.

[0121] Preferably, according to the first variant, the front end is located directly at the transition from the first pipe section to the deflection section. Preferably, the rear end is located at a distance from the transition from the first pipe section to the deflection section. Preferably, the distance corresponds approximately to the pipe diameter in the second pipe section.

[0122] In the first variant, the at least one guide wall extends exclusively from the deflection section into the second pipe section.

[0123] In a second variant, in which the guide wall is arranged in the deflection section, the front end and the rear end are located in the deflection section. In a third variant, in which the guide wall is arranged in the second pipe section, the front end and the rear end are located in the second pipe section.

[0124] In all variants, the at least one guide wall preferably does not extend into the first pipe section.

[0125] Preferably, the at least one side surface is oriented in the direction of the deflection axis or in the direction of the second central axis.

[0126] Preferably, the at least one side surface runs parallel or at an angle to a center plane passing through the two center axes. The at least one side surface is preferably designed as a flat surface.

[0127] Preferably, the at least one guide wall has the shape of a thin wall. This means that the two side surfaces are close to each other. The shape of a thin wall has the advantage that the cross-section of the pipe bend is not excessively reduced in the area where the guide wall is arranged. Furthermore, manufacturing is simplified.

[0128] Preferably, the wall thickness of the guide wall is constant across its length and height. This means that the distance between the two side surfaces is constant.

[0129] The wall thickness of the guide wall is preferably in the range of 0.5 to 8 millimeters, especially in the range of 1 to 6 millimeters. The wall thickness of the guide wall is preferably smaller than the wall thickness of the outlet bend in the area of ​​the two pipe sections or in the area of ​​the deflection section. These ranges are particularly advantageous when the outlet bend is made of plastic. If the outlet bend is made of ceramic, the wall thicknesses are preferably greater.

[0130] Preferably, at least two, in particular exactly two, of said guide walls are arranged at a distance from one another.

[0131] Preferably, the guide walls are of the same or identical design. This has the advantage that the outlet bend is symmetrical, allowing installation at various angles between the vertical direction and the second central axis. Thus, the outlet bend can be installed at an angle to one side of the vertical direction or at an angle to the other side of the vertical direction.

[0132] Preferably, the distance between the two guide walls is in a range of 25% and 45% of the diameter of the second pipe section.

[0133] Preferably, the at least two guide walls are arranged symmetrically to one another with respect to a center plane running through the two center axes and are each at an equal distance from said center plane.

[0134] Preferably, the at least one guide wall extends from an inner surface of the deflection section or from an inner surface of the second pipe section into the interior of the outlet bend.

[0135] Preferably, the at least one guide wall is connected to the inner surface of the deflection section or the inner surface of the second pipe section by a foot section. The foot section is preferably rounded with a curve. In one variant, the curve is preferably a concave curve. This means that the cross-section of the guide wall increases in the region of the curve. In another variant, however, the curve is concave on one side of the guide wall and convex on the other side of the guide wall. Preferably, the convex curve is on the side of the guide wall that faces away from the other guide wall and the concave curve is on the side of the guide wall that faces towards the other guide wall. However, the foot section can also run parallel to the side surfaces of the at least one guide wall.

[0136] In one variant, the at least one guide wall is in contact with the respective inner surface over its entire length. In another variant, the at least one guide wall is in contact with the respective inner surface over at least a first partial area of ​​its entire length, and the at least one guide wall is offset from the respective inner surface over at least a second partial area such that a gap is created between the guide wall and the respective inner surface.

[0137] Preferably, the gap is located near the rear end of the guide wall. This gap has the advantage that when cutting or shortening the second pipe section in an area where the guide wall is present, the guide element can be left in place while still providing good accessibility for a welding mirror.

[0138] Preferably, the guide wall has two side surfaces spaced apart from one another.

[0139] In a preferred embodiment, the two side surfaces preferably run parallel to each other. Preferably, the two side surfaces run parallel to a center plane passing through the two center axes.

[0140] In an alternative embodiment, the two side surfaces extend at an angle to each other, such that the distance between the two side surfaces decreases with increasing distance from the inner surface of the second pipe section or the deflection section. Inside the second pipe section or the deflection section, the side surfaces merge into one another at an end face. In other words, the guide wall in this alternative embodiment is V-shaped, with the two legs of the letter V extending through the side surfaces. The angle is preferably between 10° and 45°.

[0141] Preferably, the at least one guide wall has an end face which is preferably rounded with a curve.

[0142] Preferably, several guide walls are arranged next to one another and spaced apart from one another. Particularly preferably, two adjacent guide walls are connected to one another by a curved wall. The curvature of the wall corresponds to the curvature of the deflection section. The wall extends from the end face of the guide wall located closer to a center plane passing through the two center axes to the base area of ​​the guide wall located further away from the center plane.

[0143] Preferably, the height of the at least one guide wall increases continuously at right angles from an inner surface of the deflection section in a first curved section of the deflection section and is substantially constant in a second curved section of the deflection section. Preferably, the first curved section extends over a length range of one-third to one-half of the total length of the deflection section. In other words, the height of the rib increases continuously from the front end, creating a structure that only slightly alters the inlet area into the deflection section, thus preventing blockages in this area.

[0144] The formation of at least one guide wall in the deflection section has the advantage that pipe cleaning devices can be easily inserted into the deflection section via the first pipe section.

[0145] Preferably, the at least one guide wall in the second pipe section has a substantially constant height over a first subsection, viewed at right angles to an inner surface of the second pipe section. In a second subsection, the at least one guide wall extends at an angle in the range of 35° to 65°, in particular in the range of 40° to 50°, to the inner surface, such that the height of the guide wall decreases continuously in the second subsection. The formation of the at least one guide wall in the second pipe section has the advantage that pipe cleaning devices can easily slide from the second pipe section into the area of ​​the guide walls after the pipe has been cleaned.

[0146] A "substantially constant height" is understood to mean a height which, for manufacturing reasons, is provided with a slight draft for demoulding purposes.

[0147] Preferably, the at least one guide wall in the deflection section and / or in the second pipe section, seen at right angles to the said inner surfaces, has a maximum height of 30% of the diameter of the deflection section and / or the second pipe section.

[0148] Preferably, an angle, viewed in cross-section transverse to the deflection axis and / or transverse to the second central axis, between the at least one side surface and a tangent extending tangentially to the inner surface of the deflection section and / or the second pipe section and through the intersection point between the respective side surface and the respective inner surface, is in the range of 40° to 90°. The described embodiment with the minimum angle of 40° has the advantage that jamming of solids between the inner surface and the side surface can be prevented. The angle also changes depending on the position of the respective guide wall. If the guide wall lies on the central plane, the angle is approximately 90°. With increasing distance from the central plane, the angle becomes smaller. If several guide surfaces are arranged, each of the guide surfaces has a different angle.

[0149] Preferably, in a center plane running through the two center axes, the deflection section on the deflection outer side extends in an arc shape, in particular in the shape of a circular arc.

[0150] Seen in a central plane passing through the two central axes, the deflection section is designed as a deflection edge on the inside of the deflection.

[0151] Preferably, the at least one guide wall is integrally formed on the inner surface of the deflection section and the inner surface of the second pipe section. Alternatively, the at least one guide wall can be integrally formed on an insert that can be inserted into the deflection section and the second pipe section. Preferably, the first pipe section has a stop surface that is arranged upstream of the deflection section and upstream of the at least one guide wall, as seen in the flow direction of the flow medium. The stop surface is preferably designed as a circular ring and is located on a shoulder in the first pipe section. The stop surface is preferably located at a distance from the transition from the first pipe section to the deflection section.

[0152] Particularly preferably, the first pipe section and / or the second pipe section have a cylindrical, in particular a circular cylindrical, cross-section.

[0153] The outlet bend, i.e., the first pipe section, the deflection section, and the second pipe section, are preferably formed as a single piece. The deflection pipe section is particularly preferably made of plastic, in particular by a blow molding or injection molding process.

[0154] Preferably, said pipe sections have a cylindrical portion. One or both of the cylindrical portions can be designed as a sleeve for inserting a pipe or for welding a pipe. One or both of the cylindrical portions can be designed as a lateral surface for projecting into a pipe sleeve or for welding a pipe.

[0155] Preferably, the diameters of the first pipe section and / or the second pipe section are in the range of 75 to 110 millimeters.

[0156] Further embodiments are specified in the dependent claims.

[0157] BRIEF DESCRIPTION OF THE DRAWINGS

[0158] Preferred embodiments of the invention are described below with reference to the drawings, which are for illustrative purposes only and are not to be construed as limiting. In the drawings:

[0159] Fig. 1 is a sectional view of a first embodiment of an outlet bend arrangement for discharging a multi-phase flow medium, in particular consisting of water, solids and air, according to the present invention;

[0160] Fig. 2 is a sectional view of a second embodiment of an outlet bend arrangement for discharging a multiphase flow medium, in particular consisting of water, solids and air, according to the present invention;

[0161] Fig. 3a / b / c show various sectional views of a third embodiment of an outlet bend arrangement for discharging a multi-phase flow medium, in particular consisting of water, solids and air, according to the present invention;

[0162] Fig. 4a / b / c different sectional views of a fourth embodiment of an outlet bend arrangement for discharging a multi-phase flow medium, in particular consisting of water, solids and air, according to the present invention;

[0163] Fig. 5 shows a first perspective view of a deflection pipe piece or a further deflection pipe section according to a first particularly preferred development;

[0164] Fig. 6 a second perspective view of a deflection pipe section according to Figure 5;

[0165] Fig. 7 is a side view of the deflection pipe section according to the preceding figures 5 and 6;

[0166] Fig. 8 is a partially sectioned plan view of the deflection pipe section according to the preceding Figures 5 to 7;

[0167] Fig. 9 is a sectional view of the deflection pipe section according to the preceding figures 5 to 8 through a sectional plane;

[0168] Fig. 10 is a perspective view of Figure 9;

[0169] Fig. 11a is a sectional view through the section line AA in Figure 7;

[0170] Fig. 11b is a sectional view through the section line BB in Figure 7;

[0171] Fig. 11b is a sectional view through the section line CC in Figure 7;

[0172] Fig. 11 d is a sectional view taken along section line DD in Figure 7;

[0173] Fig. 12 shows a first perspective view of a deflection pipe piece or a further deflection pipe section according to a second particularly preferred development;

[0174] Fig. 13 a second perspective view of a deflection pipe section according to Figure 12;

[0175] Fig. 14 is a side view of the deflection pipe section according to the preceding figures 12 and 13;

[0176] Fig. 15 is a partially sectioned plan view of the deflection pipe section according to the preceding Figures 12 to 14;

[0177] Fig. 16 is a sectional view of the deflection pipe section according to the preceding Figures 12 to 15 through a sectional plane; Fig. 17 is a perspective view of Figure 16;

[0178] Fig. 18a is a sectional view through the section line AA in Figure 14;

[0179] Fig. 18b is a sectional view through the section line BB in Figure 14;

[0180] Fig. 18b is a sectional view through the section line CC in Figure 14; and

[0181] Fig. 18d is a sectional view through the section line DD in Figure 14.

[0182] Fig. 19 shows a first perspective view of a deflection pipe section or a further deflection pipe section according to a third development of the present invention;

[0183] Fig. 20 is a second perspective view of a deflection pipe section according to Figure 19;

[0184] Fig. 21 is a side view of the deflection pipe section according to the preceding figures 19 and 18;

[0185] Fig. 22a is a sectional view at the interface AA according to Figure 21;

[0186] Fig. 22b a sectional view at the interface BB according to Figure 21;

[0187] Fig. 22c is a sectional view at the interface CC according to Figure 21; and

[0188] Fig. 22d is a sectional view at the interface DD according to Figure 21.

[0189] Fig. 23 a side view of an exit arch;

[0190] Fig. 24 is a perspective sectional view of the outlet bend according to Figure 23 in a first variant of an installation position;

[0191] Fig. 25 is a sectional view of the outlet bend according to Figures 23 and 24;

[0192] Fig. 26 is a sectional view transverse to the central axis through the second pipe section of the outlet bend according to the preceding figures along the section line IV-IV according to Fig. 23;

[0193] Fig. 27 is a sectional view through the central axis through the first and second pipe section of the outlet bend according to the preceding figures along the section line VV according to Figure 23;

[0194] Fig. 28 is a perspective sectional view of the outlet bend according to the preceding figures in a first variant of an installation position;

[0195] Fig. 29 is a perspective sectional view of an outlet bend according to another embodiment of the present invention; and

[0196] Fig. 30 is a further sectional view of the further embodiment according to Figure 29.

[0197] DESCRIPTION OF PREFERRED EMBODIMENTS

[0198] Figures 1 to 4c show various embodiments of an outlet bend assembly 100 according to the present invention. The outlet bend assembly 100 serves to discharge a multiphase flow medium, which is composed in particular of water, solids, and air. The outlet bend assembly 100 provides part of a wastewater line between a sanitary article, such as a toilet or urinal, and another pipeline. With the outlet bend assembly 100, the flow medium is deflected from a horizontal flow direction to the vertical direction or at an angle to the vertical direction and then deflected back to the horizontal.

[0199] The outlet bend arrangement 100 comprises a pipeline 101. The pipeline 101 has a first horizontal pipeline section 102 which extends along a first center line M102 which runs horizontally H in the installed position, a downpipe section 103 which adjoins the first horizontal pipeline section 102 and extends along a downpipe line F which runs downwards in the installed position, and a second horizontal pipeline section 104 which adjoins the downpipe section 103 and extends along a second center line M104 which runs horizontally H or with a slight gradient to the horizontal H in the installed position.

[0200] Figures 1 to 4c each show the outlet bend assembly 100 in its installed position. In the installed position, the second centerline M104 lies below the first centerline M102. The fluid flows along a flow direction A toward the first centerline M102, then along the downcomer line F, and finally along the second centerline M104 through the pipe 101. The pipe 101 is only partially filled with the fluid. This does not represent a complete filling of the pipe.

[0201] The first centerline M102 and the second centerline M104 extend here as geometric straight lines. The downpipe line F has various segments, some of which are straight lines and some of which are curved.

[0202] In the embodiments shown, at least one guide element 105 is arranged in the downpipe section 103 and / or in the second horizontal pipe section 104. The guide element 105 is designed and arranged such that the flow medium can be guided essentially in the flow direction A and partially prevents movement transverse to the flow direction A. In other words, the flow medium is guided in the pipeline by the at least one guide element 105, so that the flow medium can be guided through the pipeline 101 with as few flow components as possible transverse to the flow direction A. This reduces losses, and the flow medium can be guided, starting from the second horizontal pipe section 104, over a greater length in a horizontal pipe adjoining the second horizontal pipe section 104.

[0203] The at least one guide element 105 can be designed in various ways, as explained further below. Preferably, the guide element 105 is designed such that it changes the cross-section of the pipeline 101. The guide element 105 can protrude into the cross-section of the pipeline 101 or it can be designed such that the cross-section of the pipeline 101 itself is changed.

[0204] Preferably, viewed in the vertical direction, the first center line M102 runs at a distance of 70 to 420 millimeters, in particular of 90 to 370 millimeters, from the second center line M104.

[0205] In the embodiment shown, as viewed in a projection onto a horizontal reference plane, the first center line M102 and the second center line M104 extend at an angle to each other. Here, the angle is 90° in all embodiments. Other angles, particularly in the range of 45° to 135°, are also conceivable. In other embodiments, the first center line M102 and the second center line M104 can also extend parallel to each other.

[0206] In all illustrated embodiments of the outlet bend arrangement 100, the downpipe section 103 has an upper deflection section 106, which directly adjoins the first horizontal pipe section 102. The upper deflection section 106 deflects the flow medium downward from a horizontal flow. Preferably, the downpipe segment in the upper deflection section 106 is formed as an arc, in particular as a circular arc. The arc angle of the arc or the circular arc is preferably 90°.

[0207] The downpipe section 103 further includes a lower deflection section 108. The second horizontal pipe section 104 is directly connected to the lower deflection section 108. The lower deflection section 108 deflects the flow medium into a horizontal flow. As can be seen from the figures, the lower deflection section 108 can be designed in various ways, as explained below.

[0208] In the first and second embodiments according to Figures 1 and 2, the upper deflection section 106 is followed by a straight section 107. In this section, the pipeline 101 extends along a straight line and the downcomer line F extends along a straight segment. Here, the straight segment preferably runs in a reference plane which is perpendicular to a vertical plane running through the first center line M102 and in the vertical V. After the straight section 107, the flow medium flows into the lower deflection section 108. The downcomer line F is inclined at an angle to the vertical direction, so that the flow medium is deflected laterally towards the first horizontal pipe section 102. Here, the flow medium is deflected to the left.

[0209] In the first embodiment, the outgoing bend arrangement 100 is provided by an outgoing bend 200 and by a diverting pipe section 300 according to a first refinement. The diverting pipe section 300 is shown in Figures 5 to 11d. The first horizontal pipe section 102 and an upper region 109 of the downpipe section 103 are provided by the outgoing bend 200. A lower region 110 of the downpipe section 103, which adjoins the upper region 109 of the downpipe section 103, and the second horizontal pipe section are provided by the diverting pipe section 300. The outgoing bend 200 and the diverting pipe section 300 are explained in more detail below. The outgoing bend 200 and the diverting pipe section 300 are plugged together. In one variant, a pipe section for extension can be arranged between the outlet bend 200 and the deflection pipe section 300.

[0210] Figure 1 schematically shows a flow line of the flow medium. After entering the upper region 109, the flow medium encounters at least one guide element 105, here the guide wall 207 in the outlet bend, which is described in more detail below. The flow medium then encounters at least one guide element 105, here the guide structure 307, in the deflection pipe section 300. The guide element 105 in the form of the guide wall 207 extends here from the upper deflection section 106 into the downpipe section 103. The guide element 105 in the form of the guide structure 307 extends here from the downpipe section 103 via the lower deflection section 104 into the second horizontal section 104.

[0211] In the second embodiment, the outgoing bend arrangement 100 is provided by an outgoing bend 200 and by a diverting pipe section 400 according to a third refinement. The diverting pipe section 300 is shown in Figures 19 to 22d. The first horizontal pipe section 102 and an upper region 109 of the downpipe section 103 are provided by the outgoing bend 200. A lower region 110 of the downpipe section 103, which adjoins the upper region 109 of the downpipe section 103, and the second horizontal pipe section are provided by the diverting pipe section 400. The outgoing bend 200 and the diverting pipe section 400 are explained in more detail below. The outgoing bend 200 and the diverting pipe section 400 are plugged together.

[0212] Figure 2 schematically shows a flow line of the flow medium. After entering the upper region 109, the flow medium encounters at least one guide element 105, here the guide wall 207 in the outlet bend, which is described in more detail below. Subsequently, the flow medium encounters at least one guide element 105, here the guide structure 406 in the deflection pipe section 400. The guide element 105 in the form of the guide wall 207 extends here from the upper deflection section 106 into the downpipe section 103. The guide element 105 in the form of the guide structure 406 extends here from the downpipe section 103 via the lower deflection section 104 into the second horizontal section 104.

[0213] In the first and second embodiments, a conventional outgoing bend can also be used without the at least one guide element 105,

[0214] In a further embodiment not shown in the figures, the outlet bend arrangement 100 is provided by an outlet bend 200 and a deflection pipe section 300 according to a second refinement. This deflection pipe section is shown in Figures 12 to 18d.

[0215] Figures 3a to 3c show a third embodiment, and Figures 4a to 4c show a fourth embodiment. In these two embodiments, the first horizontal pipe section 102 and an upper region 109 of the downpipe section 103 are provided by an outgoing bend 200.

[0216] In the third embodiment, the outgoing bend is an outgoing bend without a guide element. In the fourth embodiment, the outgoing bend is an outgoing bend 200, described in more detail below. A middle region 111 of the downpipe section 103, which adjoins the upper region of the downpipe section 103, is provided by a deflection pipe section 400. The deflection pipe section 400 is explained in more detail below. A lower region 110 of the downpipe section 103, which adjoins the middle region 109 of the downpipe section 103, and the second horizontal pipe section are provided by a further deflection pipe section 300. The guide element 105 in the form of the guide wall 207 extends here from the upper deflection section 106 into the downpipe section 103. The guide element 105 in the form of the guide structure 406 extends in the downpipe section.The guide element 105 in the form of the guide structure 406 extends here from the downpipe section 103 via the lower deflection section 104 into the second horizontal section 104.

[0217] Figures 3a to 3c and Figures 4a to 4c also show schematic flow lines. The fluid flows along the flow lines as described in the individual elements of the outlet bend arrangement through the pipeline 101.

[0218] Figures 5 to 11 show a first particularly preferred development of the above-mentioned deflection pipe section 300 or of a further deflection pipe section 300, and Figures 12 to 18 show a second particularly preferred development of the above-mentioned deflection pipe section 300 or of a further deflection pipe section 300. Identical parts are provided with the same reference numerals, and reference is made to the respective description. The at least one guide element 105 described above is provided by the guide structure 307 described below.

[0219] The deflection pipe section 300 of both developments comprises a first pipe section 302, a deflection section 303 adjoining the first pipe section 302, and a second pipe section 306. The first pipe section 302 extends along a first central axis 3M1, and the second pipe section 306 extends along a second central axis 3M2.

[0220] The deflection section 303 connects the two pipe sections 302, 306 and deflects the flow medium from the first pipe section 302, then guides it into the second pipe section 306. The two pipe sections 302, 306, or the two central axes 3M1, 3M2, are inclined to each other at an angle a (alpha). The angle a (alpha) between the first central axis 3M1 and the second central axis 3M2 is preferably greater than 120°. The angle is particularly preferably in the range of 125° to 145°, in particular 135°.

[0221] The deflection section 303 further comprises a guide structure 307 arranged inside the deflection section 303 on the deflection outer side 305 for guiding the flow medium in the deflection section 303. The guide structure 307 is arranged such that the flow medium can be guided through the deflection section 303 with the lowest possible flow losses.

[0222] The shape of the guide structure can be the same or similar in both embodiments. Preferably, the guide structure 307 has a central guide section 315 and two lateral guide sections 316. The lateral guide sections 316 extend alongside the central guide section 315, which is located centrally between the two lateral guide sections. From the sectional views in Figures 11a-11d and 18a-18d, it is clear that the central guide section 315 is offset from the lateral guide sections 316 with respect to the interior space 317 of the deflection section 303.

[0223] In the illustrated embodiments, the central guide section 315 is located above the lateral guide sections 316. This is shown in the cross-sectional views of Figures 11a to 11d and 18a to 18d. The central guide section 315 is spaced apart from the lateral guide sections. Generally speaking, portions of the central guide section 315 or the central guide section 315 are offset into the interior space 317 with respect to portions of the lateral guide sections 316 or the lateral guide sections 316.

[0224] In another development, the central guide section 315 is located below the lateral guide sections 316. Generally speaking, sub-regions of the lateral guide sections 316 or the lateral guide sections 316 are located with respect to sub-regions of the central guide section 315 or the central guide section

[0225] 315 into the interior 317.

[0226] In cross-section transverse to the first or second central axis 3M1, 3M2, the central guide section 315 has a width 3B15 and the lateral guide sections

[0227] 316 have a width 3B16. The width 3B15 of the central guide section 315 decreases with increasing distance away from the first pipe section 302 or towards the second pipe section 306. As the width 3B15 of the central guide section 316 decreases, the width 3B16 of the lateral guide sections 316 increases with increasing distance away from the first pipe section 302 or towards the second pipe section 306. The increase or decrease in the widths 3B15, 3B16 preferably occurs continuously over the length of the deflection section 303. Figures 11a and 18b show a sectional view in the region of the end of the deflection section 303, i.e. close to the second pipe section 306. Here, the increase or decrease in the widths 3B15, 3B16 can be clearly seen.

[0228] From Figures 9 and 10, it can be seen that the distance between the central guide section 315 and the lateral guide sections 316, viewed at right angles to the second central axis 3M2 and in a reference plane spanned by the first central axis 3M1 and the second central axis 3M2, decreases with increasing distance from the first tube section 302. The distance in the transition region between the deflection section 303 and the second tube section 306 tends toward zero in the illustrated embodiments. The minimum distance is reached at the entrance to the second tube section 306. This means that the guide sections 315, 316 become similar over the length of the deflection section 303 and then merge together into the cylindrical second tube section 306. In this regard, reference is made to Figures 11a and 18a, which illustrate this feature.

[0229] From the sectional views of Figures 11a-11d and 18a-18d, it can be seen that the central guide section 315 has a guide surface 318 and that a wall surface 319 is arranged laterally to the guide surface 315, which wall surface 319 connects the guide surface 318 to the lateral guide sections 316. The lateral guide sections are provided by the wall surface 319 and the wall of the deflection section.

[0230] The guide surface 318 is designed in cross-section transverse to the first or second central axis 3M1, 3M2 in such a way that a recess 320 is provided. The recess represents a type of channel and provides additional guidance for the flow medium. The recess extends outward relative to the side edges 321, which laterally delimit the guide surface 318, relative to the interior space 317 of the deflection section 303. Preferably, the depth of the recess 320 differs relative to the side edges 321, transverse to the first or second central axis 3M1, 3M2, from the first tube section 302 to the second tube section 306, viewed across the deflection section. This can be seen from the sectional views in Figures 11a-11d and 18a-18d.

[0231] The shape of the recess can be designed with a concave curve. The curve then extends from side edge 321 to side edge 321.

[0232] From the sectional views in Figures 9 and 15, it can be seen that the flow medium is deflected by the angle 3a, 3alpha between the first central axis 3M1 and the second central axis 3M2. This means that the flow medium undergoes a total deflection by the angle 3a, 3alpha. The guide structure 307 is arranged and designed such that, at the point of impact of the flow medium on the guide structure 307, the guide structure 307 provides a deflection by a first angular portion 3a1, 3alpha1 of the aforementioned angle 3a, 3alpha, and that, at the transition from the guide structure 307 to the second pipe section 306, the guide structure 307 provides a deflection by a second angular portion 3a2, 3alpha2 of the aforementioned angle 3a, 3alpha.

[0233] Preferably, the guide structure 307 runs along a base line 322 in the region of the transition to the second pipe section 306. The base line 322 is a straight line 3G. The straight line 3G runs at an angle 3ß, 3beta of 160° to 175° to the base line 322 of the second pipe section 306. The base line 322 can extend as a straight line over the entire length of the guide structure 307. In the embodiment shown, the base line extends as a straight line over most of the entire length of the guide structure 307, with the base line 322 having a curved section 3F at the beginning of the guide structure. However, the curved section 3F only extends over a small portion of the total length of the deflection section 303. The guide structure itself is therefore essentially straight and, compared to the deflections around the aforementioned angle parts, does not provide a significant deflection.

[0234] In the first embodiment according to Figures 5 to 11d, the first pipe section 302 has a discharge edge 308. In the installed state of the deflection pipe section 301, the discharge edge 308 is positioned such that the flow medium flows over the discharge edge 308. At the discharge edge 308, the flow medium detaches from the inside of the first pipe section 302 and flows at least partially as a substantially free jet onto the guide structure 307. The discharge edge 308 and the guide structure 307 are positioned relative to one another such that the flow medium flowing freely from the discharge edge 308 can be directed to the guide structure 307 and is guided by the guide structure 307 through the deflection section 303.When the first center axis 3M1 is inclined at an angle to the vertical direction in the installed position, a portion of the flow medium is guided over the wall region that laterally adjoins the discharge edge 308, and another portion of the flow medium is guided over the discharge edge 308. The portion that flows over the wall region then strikes the guide structure 307 laterally, and the portion that flows over the discharge edge 308 strikes the guide structure 307 essentially in the direction of the vertical direction.

[0235] The design of the guide structure 307 according to the first further development will now be explained in more detail with reference to Figures 9 and 10. In the further development shown, the guide structure 307 is arranged such that it extends into an area which, when viewed in the installed position of the deflection pipe section 300, lies below the discharge edge 308. This can be clearly seen in Figure 9. This ensures that the flow medium flowing from the discharge edge 308 is guided onto the guide structure 307. When viewed in the installed position, the guide structure 307 has a gradient from the third pipe section 310 to the second pipe section 306, such that the flow medium, coming from the discharge edge 308, flows downwards through the guide structure 307 during the discharge process.

[0236] In a sectional plane spanned by the first central axis 3M1 and the second central axis 3M2, a lower intersection point 3S1 between a starting edge 309 of the guide structure 307 and the sectional plane, as well as an upper intersection point 3S2 between the discharge edge 308 and the sectional plane, lie on a common imaginary straight line 3G. The sectional plane is the drawing sheet surface of Figure 9. The imaginary straight line 3G runs at a right angle or at an angle to the second central axis 3M2. In the case of a right angle, the two intersection points 3S1, 3S2 lie directly above one another in the installed position. In the case of an angle, the imaginary straight line 3G runs at an angle to the second central axis 3M2 such that the second intersection point 3S2 is offset from the second pipe section 306 with respect to the first intersection point 3S1, opposite to the flow direction of the flow medium.In the first embodiment, as can be seen from the figures, a third pipe section 310 is arranged in addition to the first pipe section 302 and the second pipe section 306. In an installed situation, the first pipe section 302 is typically connected to a drain pipe of a toilet bowl or urinal, and the third pipe section 310 can be connected to a waste pipe of another sanitary appliance. The second pipe section 306 is connected to another waste pipe.

[0237] In the illustrated embodiment, the third pipe section 310 joins the other sections of the deflection pipe section 301 in the region of the deflection section 303. The third pipe section 310 extends along a third central axis 3M3. The third central axis 3M3 runs parallel and offset from the second central axis 3M2 and, in the installed position, lies above the second central axis 3M2. The offset is designated by the reference symbol 3V. Due to the offset and the diameter ratios, a step is formed between the third pipe section 310 and the second pipe section 306.The dimensioning of this shoulder can preferably be designed as follows: The inner wall 311 of the second pipe section 306 has a base line 312, and the inner wall 313 of the third pipe section 310 has a base line 314, wherein the base line 314 of the third pipe section 310 is at a distance A transverse to the base lines 312, 314, from the base line 312 of the second pipe section 306, wherein the distance 3A is preferably between 1 / 10 and 6 / 10, in particular between 2 / 10 and 5 / 10, of the diameter of the second pipe section 306. In the installed position, the flow medium flows over this shoulder against the vertical direction downwards into the second pipe section 306. The shoulder is provided here essentially by the guide structure 307.

[0238] The guide structure 307 extends from the second pipe section 306 into the third pipe section 310. The guide structure 307 thus provides a transition between the third pipe section 310 and the second pipe section 306.

[0239] Figures 19 to 22d show a third particularly preferred development of a deflection pipe section 400 or a further deflection pipe section 400. The at least one guide element 105 described above is provided by the guide structure 406 described below.

[0240] The deflection pipe section 400 comprises a first pipe section 401, a deflection section 403 adjoining the first pipe section 401 and a second pipe section

[0241] 402. The first tube section 401 extends along a first central axis 4M1 and the second tube section 402 extends along a second central axis 4M2.

[0242] The deflection section 403 connects the two pipe sections 401, 402 and deflects the flow medium from the first pipe section 401 and then guides it into the second pipe section 402. The two pipe sections 401, 402, or the two central axes 4M1, 4M2, are inclined at an angle 4ß, 4beta to one another. The angle 4ß, 4beta between the first central axis 4M1 and the second central axis 4M2 is preferably greater than 120°. The angle is particularly preferably in the range from 125° to 145°, in particular 135°.

[0243] The deflection section 403 further comprises a guide structure 406 arranged inside the deflection section 403 on the deflection outer side 404 for guiding the flow medium in the deflection section 403. The guide structure 406 is arranged such that the flow medium can be guided through the deflection section 403 with the lowest possible flow losses.

[0244] The guide structure 406 has a constriction 407 on the deflection outer side 404. The shape of the constriction 406 is clearly visible in Figures 22b to 22d. Figures 22a to 22d show the cross-sectional shapes of the deflection section at the respective interfaces AA, BB, CC, and DD according to Figure 21.

[0245] The constriction 407 has two surface sections 408 opposite each other with respect to the central axis 4M3 of the deflection section 403. At the point where the pipe cross-sectional area of ​​the constriction 407 is minimal, the surface sections 408 each extend along a straight line 4G, as seen in a section plane 4S that runs transversely to the central axis 4M3 of the deflection section 403. The straight lines 4G are inclined at an angle α, α to each other. This cross-sectional area lies at section BB and is shown in Figure 22b.

[0246] The first tube section 401 has a cylindrical cross-section. The cylindrical cross-section merges into the cross-section of the constriction 407. Furthermore, the second tube section 402 has a cylindrical cross-section, with the cross-section of the constriction merging into the cylindrical cross-section. In Figures 22b, 22c, and 22d, the sectional views run in different sectional planes 4S, each of which runs perpendicular to the central axis 4M3 of the deflection section 403. These views show the course of the respective surface sections 408 in the aforementioned sectional plane 4S.

[0247] In other words, the constriction in the said section plane at the minimum pipe cross-sectional area has the shape of the letter "V." The constriction is therefore V-shaped. The two legs of the letter "V" extend at the aforementioned angle 4a, 4alpha. The angle 4a, 4alpha, or the degree of opening of the two legs of the letter V, varies over the length of the deflection section 403.

[0248] Starting from the straight line 4G at the minimum pipe cross-sectional area, the surface section runs as a transition to the first pipe section 401 and the second pipe section 402. The surface section 408 transitions from the straight line 4G toward the first pipe section 401 to the shape of the first pipe section 401. The surface section 408 transitions from the straight line 4G toward the second pipe section 402 to the shape of the second pipe section 402.

[0249] It is also conceivable that a sub-area of ​​the surface section is defined in terms of its shape by a set of adjacent straight lines 4G. The straight lines of the set lie adjacent to one another as seen in the flow direction and span the surface section 408. In other words, the surface sections extend along a straight line 4G on each increment along the central axis 4M3. In this variant, the transition described above does not occur from the straight line 4G at the minimum pipe cross-sectional area, but from a straight line that is spaced from the straight line 4G and marks the end of the sub-area.

[0250] In the embodiment shown, the two surface sections 408 extend over a partial length 4T of the deflection section 403. Before the surface section 408 and / or after the surface section, the deflection section 403 has the cross section of the first pipe section 401 or the second pipe section 402.

[0251] The intersection point 409 of two opposing straight lines 4G lies outside the deflection section 43. The intersection point 409 is shown accordingly in Figure 22b. The intersection point of two opposing straight lines also lies in a reference plane 4B, which is spanned by the first central axis 4M1 and the second central axis 4M2.

[0252] From the sectional views it can be seen that the constriction 407 extends from the deflection outer side 404 to at most half the diameter of the deflection section

[0253] 403. This means that the constriction 407 does not extend into the area of ​​the deflection inner side 405.

[0254] The deflection inner side 405 here has a substantially circular-cylindrical inner surface 410. The inner surface 410 adjoins the two opposite surface sections 408 at the top and connects the two surface sections 408.

[0255] The two opposite surface sections 408 are on the deflection outer side

[0256] 404 is connected to a surface section 411 which is concavely rounded towards the interior.

[0257] The cross-sectional area of ​​the deflection section 403 is variable in the region of the constriction 407 over the length of the constriction 407 as seen in the flow direction 4F. The cross-sectional area decreases in the flow direction from the first pipe section to the minimum pipe cross-sectional area and then increases again towards the second pipe section.

[0258] Viewed in the direction of the central axis 4M3 of the deflection section 403, the region with the minimum pipe cross-sectional area is located at a distance 4A from the first pipe section 401. In the embodiment shown, the distance 4A is selected such that the said region is closer to the first pipe section 401 than to the second pipe section 402. Preferably, the distance 4A is less than one-third or less than one-quarter of the total length of the central axis of the deflection section 403.

[0259] Figures 23 to 30 show a particularly preferred embodiment of an outlet bend 200. With the outlet bend 200, the flow medium is deflected from a horizontal flow direction to the vertical direction or at an angle to the vertical direction.

[0260] The outlet bend 200 comprises a first pipe section 202, a deflection section 203 adjoining this first pipe section 202, and a second pipe section 206 adjoining the deflection section 203. The first pipe section 202, the deflection section 203, and the second pipe section 206 form the pipe section 201 and define an interior space 214 through which the flow medium flows. The flow medium flows along a flow direction 2F from the first pipe section 202 through the deflection section 203 and finally through the second pipe section 206.

[0261] The first tube section 202 extends along a first central axis 2M1. The first central axis 2M1 extends along a straight line.

[0262] The deflection section 203 has a deflection outer side 204 and a deflection inner side 205. The deflection section 203 extends along a deflection axis 2U, which is arcuate, in particular circular. In the deflection section 203, the flow medium is deflected relative to the first pipe section 202.

[0263] The second pipe section 206 extends along a second central axis 2M2. The second central axis 2M2 extends along a straight line. The first central axis 2M1 and the second central axis 2M2 are at an angle of 90° to each other. The deflection axis 2U connects the first central axis 2M1 and the second central axis 2M2. Viewed in the installed position, the first central axis 2M1 runs horizontally or perpendicular to the vertical direction L.

[0264] From the figures, it can be seen that, viewed in a center plane 2ME extending through the two center axes 2M1, 2M2, the deflection section 203 on the deflection outer side 204 extends in an arc shape, in particular in the shape of a circular arc, with an arc 223; and that the deflection section 203 on the deflection inner side 205 is designed as a deflection edge 224.

[0265] From the sectional views of Figures 24 to 30, it can further be seen that the outlet bend 200 further comprises at least one guide wall 207 extending into the cross-section of the outlet bend 200, said guide wall having a first side surface 208 and a second side surface 209. The at least one guide element is provided by the at least one guide wall 207. The at least one guide wall 207 extends into the interior space 214 such that the flow medium is guided through the at least one guide wall 207. The guide wall 207 is arranged in the deflection section 203 on the deflection outer side 204 and in the second pipe section 206. In other words, the guide wall 207 extends from the deflection section 203 into the second pipe section 206. The side surfaces 208, 209 are oriented in the direction of the second central axis 2M2.Other embodiments in which the guide wall is arranged either only in the deflection section 203 or only in the second pipe section 206 are also conceivable.

[0266] The at least one guide wall 207 extends from an inner surface 212 of the deflection section 203 and from an inner surface 213 of the second pipe section 206 into the interior space 214 of the outlet bend 200. The at least one guide wall 7 is preferably firmly formed on the respective inner surface 212, 213.

[0267] The at least one guide wall 207 adjoins the inner surface 212 of the deflection section 203 and the inner surface 212 of the second tube section 206 with a foot section 215. As shown in the figures, the foot section 215 can run parallel to the side surfaces of the at least one guide wall 207. Alternatively, the foot section 215 can be rounded with a curve 216.

[0268] From Figure 2, it can be seen that the at least one guide wall 207 has a front end 210 and a rear end 211. The front end 210 lies in the deflection section 203, and the rear end 211 lies in the second tube section 206. The front end 210 is located essentially directly at the transition region 228 from the first tube section 202 to the deflection section 203. Alternatively, the front end 210 can also be arranged offset from this transition region 228 in the deflection section 203. The rear end 211 is located at a distance from the transition region from the deflection section 203 to the second tube section 206.

[0269] The side surfaces 208, 209 are formed as flat side surfaces. In the embodiment shown, the side surfaces 208, 209 run parallel to each other. The guide wall 207 has a constant wall thickness along its length from the deflection section 203 into the second tube section 206. The wall thickness is particularly preferably in the range of 0.5 to 8 millimeters, in particular in the range of 1 to 6 millimeters.

[0270] The height of the at least one guide wall 207, viewed perpendicularly from an inner surface 212 of the deflection section 203, is selected as follows. In a first curved section 219 of the deflection section 203, the height increases continuously. In a second curved section 220 of the deflection section 203, the height is essentially constant. In other words, this means that the height of the guide wall increases continuously from the front end 210 across the first curved section 219 and then remains essentially constant in the second curved section. Preferably, the first curved section 219 extends over a length range of one-third to one-half of the total length of the deflection section 203.

[0271] In the second pipe section 206, the at least one guide wall 207 has a substantially constant height, viewed perpendicularly from an inner surface 213 of the second pipe section 206, over a first partial section 221. In a second partial section 222, the at least one guide wall 207 extends at an angle in the range of 35° to 65°, in particular in the range of 40° to 50°, toward the inner surface 213, so that the height of the guide wall 207 decreases continuously in the second partial section 222.

[0272] In the embodiment shown, two of the guide walls 207 are provided. In other embodiments, more than two of the guide walls 207 may be provided. It is also conceivable that only a single guide wall 207 is provided.

[0273] The two guide walls 207 are of similar or identical design. With respect to a center plane 2ME running through the two center axes 2M1, 2M2, the two guide walls 207 are arranged symmetrically to each other. Furthermore, the two guide walls 207 are each at the same distance from the said center plane 2ME.

[0274] The two guide walls 207 are spaced apart by a distance of 2A. The distance 2A is shown in Figure 4. Preferably, the distance 2A is selected such that the distance 2A lies in a range of 25% to 45% of the diameter of the second pipe section 206.

[0275] From Figure 26, it can also be seen that the at least one guide wall 207 lies with its side surfaces parallel to said center plane 2ME. Viewed in cross-section transverse to the deflection axis 2U and / or transverse to the second center axis 2M2, the guide wall 207 is at an angle 2a, 2alpha to a tangent 2T. The tangent 2T extends tangentially to the respective inner surface 212, 213 of the deflection section 203 and / or the second pipe section 6 and through the intersection point between the respective side surface 208, 209 and the respective inner surface 212, 213. The angle 2a, 2alpha is preferably in the range of 40° to 90°. The minimum angle in this range, in particular the minimum angle, has the advantage that solids cannot become trapped, or can become trapped to a lesser extent, between the inner surface and the side surface.

[0276] Figure 24 shows a first use of the outlet bend 200 as an outlet bend 200 of a sanitary article, such as a toilet bowl or urinal. In the first use, viewed in the installed position of the outlet bend 200, the first central axis 2M1 runs perpendicular to the vertical direction 2L. The second central axis 2M2 runs in the vertical direction 2L. The arrangement of the outlet bend 201 is such that the flow medium flows through the first pipe section 202 into the deflection section 203 and is channeled in the deflection section 203 by the at least one guide wall 207 in the direction of the vertical direction 2L.

[0277] Figure 28 shows a second use of the outlet bend 200 as an outlet bend 200 of a sanitary article, such as a toilet bowl or a urinal. In the first use, as seen in the installed position of the outlet bend 201, the first central axis 2M1 runs perpendicular to the vertical direction 2L. The second central axis 2M2 is inclined at an angle 2ß to the vertical direction 2L. The arrangement of the outlet bend 201 is such that the flow medium flows through the first pipe section 202 into the deflection section 203 and is prevented from flowing against the vertical direction 2L in the deflection section 203 by the at least one guide wall 207 and is deflected in the direction of the second pipe section 206. This prevents the flow medium from rotating around the second central axis 2M2 due to the deflection in the deflection section 203 in the course of the second pipe section 206.

[0278] Furthermore, a receiving groove 225 for receiving a seal is arranged in the first pipe section 202. Furthermore, the first pipe section 202 has a stop surface 226. The stop surface 226 is arranged upstream of the deflection section 203 and upstream of the at least one guide wall 207, as seen in the flow direction of the flow medium. Upstream of the stop surface 226 in the flow direction, the second pipe section has an insertion region 227 into which a pipe section can be inserted. The pipe section, which protrudes into the insertion region 227 of the first pipe section 202, can abut against the stop surface 226. The stop surface 226 is arranged such that the pipe section cannot be inserted far enough to come into contact with the at least one guide wall 207.

[0279] Figures 29 to 30 show a further embodiment of the present outgoing bend 200. Identical parts are provided with the same reference numerals, and reference is made to the above description. The main difference from the first embodiment is the shape of the at least one guide wall 207. In the further embodiment, the two side surfaces 208, 209 extend at an angle to one another, such that the distance between the two side surfaces decreases with increasing distance from the inner surface 212 of the deflection section 203 or from the inner surface 213 of the second pipe section 206. This means that the cross-section of the at least one guide wall 207 becomes smaller with increasing distance from the respective inner surface 212, 213. In the interior 214 of the second pipe section 206 or the deflection section 203, the side surfaces 208, 209 merge into one another at an end face 217.In other words, the guide wall 207 in this alternative embodiment is V-shaped, with the two legs of the letter V extending through the side surfaces. The angle is preferably between 10° and 45°.

[0280] In the second tube section 206, the guide wall 207 can be slightly offset from the inner surface 213, as can be seen in Figure 30. This creates a gap 229 between the guide wall 207 and the inner surface 213. Over a first partial area 230 of the length of the guide wall 207, the guide wall 207 is firmly in contact with the respective inner surface 212, 213. In a second partial area 231, here in the second tube section 206, the guide wall 207 is arranged offset from the respective inner surface 212, 213, so that the said gap 229 is formed.

[0281] The V-shaped guide wall 207 extends in height very similar to the guide wall described in connection with Figures 23 to 29. From a front end 210, the height of the guide wall 207 increases continuously over a first curved section 219. Over a second curved section 220, the guide wall 207 extends at a constant height. In the region of the rear end 211, the guide wall has a curve. LIST OF REFERENCE SYMBOLS

[0282] 100 exit arch arrangement

[0283] 101 Pipeline

[0284] 102 first horizontal line section

[0285] 103 downpipe section

[0286] 104 second horizontal line section

[0287] 105 Guide element

[0288] 106 upper deflection section

[0289] 107 straight section

[0290] 108 lower deflection section

[0291] 109 upper range of 103

[0292] 110 lower range of 103

[0293] 111 middle range of 103

[0294] 200 exit arches

[0295] 300 deflection pipe piece

[0296] 400 deflection pipe piece

[0297] A Flow direction

[0298] H Horizontal

[0299] V Vertical

[0300] F downpipe line

[0301] M102 first central axis of 102

[0302] M104 second central axis of 102

[0303] 200 exit arches

[0304] 202 first pipe section

[0305] 203 Deflection section

[0306] 204 Deflection outer side

[0307] 205 deflection inside

[0308] 206 second pipe section

[0309] 207 Guide wall

[0310] 208 first side surface

[0311] 209 second side surface

[0312] 210 front end

[0313] 211 rear end

[0314] 212 interior area of ​​3

[0315] 213 interior area of ​​6

[0316] 214 Interior 215 Foot section

[0317] 216 Rounding of 15

[0318] 217 frontal area

[0319] 218 Rounding of 17

[0320] 219 first arch section

[0321] 220 second arch section

[0322] 221 first section

[0323] 222 second section

[0324] 223 sheets

[0325] 224 Deflection edge

[0326] 225 mounting groove

[0327] 226 stop surface

[0328] 227 insertion area

[0329] 228 Transition area

[0330] 229 gap

[0331] 230 first section

[0332] 231 second section

[0333] 2M1 first central axis

[0334] 2M2 second central axis

[0335] 2U deflection axis

[0336] 2T Tangent

[0337] 2ME middle level

[0338] 2L plumb direction

[0339] 2A distance

[0340] 2a angle

[0341] 2ß angle

[0342] 300 deflection pipe piece

[0343] 302 first pipe section

[0344] 303 Deflection section

[0345] 304 Deflection outer side

[0346] 305 deflection inside

[0347] 306 second pipe section

[0348] 307 Management structure

[0349] 308 Drain edge

[0350] 309 Starting edge

[0351] 310 third pipe section

[0352] 311 Inner wall second pipe section

[0353] 312 Baseline of second pipe section 313 Inner wall of third pipe section

[0354] 314 Baseline third pipe section

[0355] 315 middle guide section

[0356] 316 lateral guide section

[0357] 317 Interior

[0358] 318 guide surface

[0359] 319 wall area

[0360] 320 deepening

[0361] 321 side edge

[0362] 322 Baseline management structure

[0363] 3A distance

[0364] 3B15 Width of the middle guide section

[0365] 3B16 Width of the lateral guide section

[0366] 3G Straight

[0367] 3K Straight

[0368] 3F Curvature section

[0369] 3M1 first central axis

[0370] 3M2 second central axis

[0371] 3M3 third central axis

[0372] 351 lower intersection point

[0373] 352 upper intersection point

[0374] 3V offset

[0375] 401 first pipe section

[0376] 402 second pipe section

[0377] 403 deflection section

[0378] 404 Deflection outer side

[0379] 405 deflection inside

[0380] 406 Management structure

[0381] 407 Constriction

[0382] 408 area section

[0383] 409 Intersection

[0384] 410 interior surface

[0385] 411 concave rounded surface section

[0386] 4B Reference plane

[0387] 4F Flow direction G Straight line M1 First central axis M2 Second central axis M3 Central axis of deflection section S Cutting plane T Partial length a Angle ß Angle

Claims

PATENT CLAIMS 1. Outlet bend arrangement (100) for discharging a multi-phase flow medium, in particular consisting of water, solids and air, wherein the outlet bend arrangement comprises a pipeline (101) which has a first horizontal line section (102) extending along a first center line (M102) which runs horizontally (H) in the installed position, a downpipe section (103) adjoining the first horizontal line section (102) and extending along a downpipe line (F) which runs downwards in the installed position, and a second horizontal line section (104) adjoining the downpipe section (103) and which extends along a second center line (M104) which, in the installed position, runs horizontally (H) or with a gradient to the horizontal (H), wherein the second center line (M104) in the installed position lies below the first center line (M102), wherein the flow medium is guided through the pipeline (101) along a flow direction (A) in the direction of the first center line (M102), the downpipe line (F) and the second center line (M104), and wherein in the downpipe section (103) and / or in the second horizontal pipe section (104) at least one guide element (105, 207, 307, 406) is arranged, which is designed and arranged such that the flow medium can be guided substantially in the flow direction (A) and partially prevents a movement transverse to the flow direction (A).

2. Outlet bend arrangement (100) according to claim 1, characterized in that the at least one guide element (105) is designed such that it changes the cross-section of the pipeline (101); and / or that, viewed in the vertical direction, the first center line (M102) runs at a distance of 70 to 420 millimeters, in particular of 90 to 370 millimeters, from the second center line (M104).

3. Outgoing arch arrangement (100) according to one of the preceding claims, characterized in that, in a projection onto a horizontal reference plane, the first center line (M102) and the second center line (M104) extend at an angle to one another, in particular that the angle is in the range of 45° to 135°; or that, in a projection onto a horizontal reference plane, the first center line (M102) and the second center line (M104) extend parallel to one another.

4. Outlet bend arrangement (100) according to one of the preceding claims, characterized in that the downpipe section (103) has an upper deflection section (106) which directly adjoins the first horizontal pipe section (102), wherein the upper deflection section (106) deflects the flow medium downwards from a flow running in the horizontal direction.

5. Outgoing bend arrangement (100) according to one of the preceding claims, characterized in that the downpipe section (103) has a straight section (107) in which the downpipe line (F) extends along a straight segment, wherein the straight segment preferably runs in a reference plane which runs at right angles to a vertical plane running through the first center line (M102) and in the vertical (V).

6. Outlet bend arrangement (100) according to one of the preceding claims, characterized in that the downpipe section (103) has a lower deflection section (108) which is directly followed by the second horizontal pipe section (104), wherein the lower deflection section (108) deflects the flow medium into a flow running in the horizontal direction.

7. Outgoing bend arrangement (100) according to one of the preceding claims 4 to 6, characterized in that one of the guide elements extends from the upper deflection section (106) into the downpipe section (103); and / or that one of the guide elements extends from the downpipe section (103) into the lower deflection section (104); and / or that one of the guide elements extends from the downpipe section (103) via the lower deflection section (104) into the second horizontal section (104); and / or that one of the guide elements extends in the downpipe section (103).

8. Outgoing arch arrangement (100) according to one of the preceding claims 1 to 7, characterized in that the first horizontal pipe section (102) and an upper region (109) of the downpipe section (103) are provided by an outlet bend (200); and that a lower region (110) of the downpipe section (103), which adjoins the upper region (109) of the downpipe section (103), and the second horizontal pipe section are provided by a deflection pipe section (300, 400).

9. The outgoing bend arrangement (100) according to any one of the preceding claims 1 to 7, characterized in that the first horizontal pipe section (102) and an upper region (109) of the downpipe section (103) are provided by an outgoing bend (200); that a middle region (111) of the downpipe section (103), which adjoins the upper region of the downpipe section (103), is provided by a deflection pipe section (400), and that a lower region (110) of the downpipe section (103), which adjoins the middle region (109) of the downpipe section (103), and the second horizontal pipe section are provided by a further deflection pipe section (300, 400).

10. Outlet bend arrangement (100) according to claim 8 or 9, characterized in that the deflection pipe section (300) or the further deflection pipe section (300) comprises a first pipe section (302) extending along a first central axis (3M1), a deflection section (303) adjoining this first pipe section (302) with a deflection outer side (304) and a deflection inner side (305), which deflection section (303) deflects the flow medium with respect to the first pipe section (302), and a second pipe section (306) adjoining the deflection section (303) and extending along a second central axis (3M2), wherein the at least one guide element (105) comprises a guide structure (307) arranged inside the deflection section (303) on the deflection outer side (305) for guiding the flow medium in the deflection section (303), and wherein the first pipe section (302) has a drainage edge (308),from which the flow medium partially detaches during the flow process, wherein the discharge edge (308) is located relative to the guide structure (307) in such a way that the flow medium can be guided to the guide structure (307).

11. Outlet bend arrangement (100) according to claim 10, characterized in that the guide structure (307) extends into a region which, when viewed in the installed position of the deflection pipe section (300), lies below the discharge edge (308); and / or that, when viewed in the installed position, the second central axis (3M2) lies substantially horizontally and that the guide structure (307) has a gradient relative to the horizontal when viewed in the flow direction.

12. Outlet bend arrangement (100) according to one of the preceding claims 10 to 11, characterized in that, viewed in a sectional plane spanned by the first central axis (3M1) and the second central axis (3M2), a lower intersection point (3S1) between a starting edge (309) of the guide structure (307) and the sectional plane and an upper intersection point (3S2) between the outflow edge (308) and the sectional plane lie on a common imaginary straight line (30G), wherein the straight line (30G) runs at a right angle to the second central axis (3M2) or wherein the straight line (30G) runs at an angle inclined to the second central axis (3M2), wherein the angle is designed such that the second intersection point (3S2) is offset from the second pipe section (306) opposite to the flow direction of the flow medium with respect to the first intersection point (3S1).

13. The outgoing bend arrangement (100) according to any one of the preceding claims, characterized in that the deflection pipe section (300) has a third pipe section (310), wherein the third pipe section (310) extends along a third central axis (4M3), wherein the third central axis (4M3) runs parallel and offset to the second central axis (4M2); or wherein the third central axis (4M3) runs collinear to the second central axis (4M2).

14. Outlet bend arrangement (100) according to claim 13, characterized in that the third pipe section (310), viewed in the installed position, opens below the first pipe section (302) into the first pipe section (302) or the second pipe section (306) or the deflection section (303); and / or that a shoulder is arranged between the third pipe section (310) and the second pipe section (306), such that in the installed position, the flow medium flows downwards over this shoulder into the second pipe section (306) against the vertical direction. and / or that, viewed in the installed position, the third central axis (3M3) lies above the second central axis (3M2); and / or that the offset (3V) between the second central axis (3M2) and the third central axis (3M3) corresponds at most to half the diameter of the third pipe section (310); and / or that the offset (3V) between the second central axis (3M2) and the third central axis (3M3) is greater than 5 millimeters; and / or that the diameter of the third pipe section (310) is smaller than the diameter of the first and / or the second pipe section (306).

15. Outlet bend arrangement (100) according to claim 13 or 14, characterized in that the guide structure (307), seen from the second pipe section (306), extends into the third pipe section (310) in such a way that the guide structure (307) provides a transition between the third pipe section (310) and the second pipe section (306), wherein the second pipe section (306) and the third pipe section (310) are preferably arranged relative to one another in such a way that the guide structure (307) has a gradient when seen in the installed position and / or in the flow direction of the multi-phase flow medium.

16. The outlet bend arrangement (100) according to one of claims 13 to 15, characterized in that the inner wall (311) of the second pipe section (306) has a base line (312) and that the inner wall (313) of the third pipe section (310) has a base line (314), wherein the base line (314) of the third pipe section (310) is at a distance (3A) transverse to the base lines (312, 314) from the base line (312) of the second pipe section (36), wherein the distance (3A) is preferably between 1 / 10 and 6 / 10, in particular between 2 / 10 and 5 / 10, of the diameter of the second pipe section (306); and / or wherein the distance (3A) is preferably greater than 5 millimeters or greater than 10 millimeters.

17. Outgoing bend arrangement (100) according to one of the preceding claims, characterized in that the guide structure (307) has a central guide section (315) and two lateral guide sections (316), wherein one of the lateral guide sections (316) is laterally to the central guide section (315); and that the central guide section (315) to the lateral guide sections (316) is arranged offset with respect to the interior (317) of the deflection section (303).

18. Outlet bend arrangement (100) according to claim 8 or 9, characterized in that the deflection pipe section (300) comprises a first pipe section (302) extending along a first central axis (3M1), a deflection section (303) adjoining this first pipe section (302) with a deflection outer side (304) and a deflection inner side (305), which deflection section (303) deflects the flow medium with respect to the first pipe section (303), and a second pipe section (306) adjoining the deflection section (303) and extending along a second central axis (3M2), wherein the at least one guide element (105) is a guide structure (307) arranged inside the deflection section (303) on the deflection outer side (305) for guiding the flow medium in the deflection section (303), wherein the guide structure (307) has a central guide section (315) and two lateral guide sections (316),wherein each of the lateral guide sections (316) is located laterally relative to the central guide section (315); and that the central guide section (315) is offset from the lateral guide sections (316) with respect to the interior space (317) of the deflection section (303).

19. Outgoing bend arrangement (100) according to one of the preceding claims 17 to 18, characterized in that partial regions of the central guide section (15) or the central guide section (15) are offset into the interior space (17) with respect to partial regions of the lateral guide sections (16) or the lateral guide sections (16); or that partial regions of the lateral guide sections (16) or the lateral guide sections (16) are offset into the interior space (17) with respect to partial regions of the central guide section (15) or the central guide section (15).

20. Outlet bend arrangement (100) according to one of the preceding claims 17 to 19, characterized in that, viewed in cross section transverse to the first or second central axis (3M1, 3M2), the width (3B15) of the central guide section (315) increases with increasing distance from the first pipe section (302) or to the second pipe section (306) decreases and that the width (3B16) of the lateral guide sections (316) increases with increasing distance away from the first pipe section (302) or towards the second pipe section (306).

21. Outgoing bend arrangement (100) according to one of the preceding claims 17 to 20, characterized in that the distance between the central guide section (315) and the lateral guide sections (316) decreases with increasing distance from the first pipe section (302) at right angles to the second central axis (3M2) and in a reference plane spanned by the first central axis (3M1) and the second central axis (3M2).

22. Outlet bend arrangement (100) according to claim 21, characterized in that the distance in the transition region between the deflection section (303) and the second pipe section (306) tends towards zero, the minimum distance being reached at the entrance to the second pipe section (306).

23. Outgoing bend arrangement (100) according to one of the preceding claims 17 to 22, characterized in that the central guide section (315) has a guide surface (318) and that a wall surface (319) is arranged laterally to the guide surface (315), which wall surface (319) connects the guide surface (318) to the lateral guide sections (316).

24. Outgoing bend arrangement (100) according to claim 23, characterized in that the guide surface (318) is designed in cross-section transverse to the first or second central axis (3M1, 3M2) such that a recess (320) is provided which extends outwards with respect to the side edges (321) which laterally delimit the guide surface (318) with respect to the interior space (317) of the deflection section (303).

25. Outgoing bend arrangement (100) according to claim 24, characterized in that the depth of the recess (320) with respect to the side edges (321) transversely to the first or second central axis (3M1, 3M2) as seen from the first pipe section (302) to the second pipe section (306), as seen across the deflection section, runs differently, in particular that the depth increases in a first partial area and decreases again in a second partial area; or that the depth over the deflection section (303) becomes smaller with increasing distance from the first pipe section (302).

26. Outlet bend arrangement (100) according to one of the preceding claims 10 to 25, characterized in that the flow medium is deflected by the angle (3a, 3alpha) between the first central axis (3M1) and the second central axis (3M2), wherein the guide structure (307) is arranged and designed such that at the point of impact of the flow medium on the guide structure (307), the guide structure (307) provides a deflection by a first angular part (3a1, 3alpha1) of said angle (3a, alpha), and that at the transition from the guide structure (307) to the second pipe section (306), the guide structure (307) provides a deflection by a second angular part (3a2, 3alpha2) of said angle (3a, 3alpha).

27. Outlet bend arrangement (100) according to one of the preceding claims 10 to 26, characterized in that the guide structure (307) runs along a base line (322) in the region of the transition to the second pipe section (306), wherein the base line (322) is a straight line (3K), and wherein the straight line (3K) runs at an angle (3ß, 3beta) of 160° to 175° to the base line (312) of the second pipe section (36) 28. Outgoing arc arrangement (100) according to one of the preceding claims 10 to 26, characterized in that the base line (322) of the guide structure (322) has a curved section (3F), wherein the curved section (3F) marks the beginning of the guide structure (307).

29. Deflection pipe section (1) according to one of the preceding claims 27 and 28, characterized in that the curved section (3F) merges into the section of the base line (322) which is a straight line (3K).

30. Outlet bend arrangement (100) according to claim 8 or 9, characterized in that the deflection pipe section (400) or the further deflection pipe section (400) comprises a first pipe section (401) which extends along a first central axis (4M1), a deflection section (403) adjoining this first pipe section (401) with a deflection outer side (404) and a deflection inner side (405), which deflection section (403) directs the flow medium with respect to the first pipe section (401) and a second pipe section (402) adjoining the deflection section (403) and extending along a second central axis (4M2), wherein the at least one guide element (105) is provided by a guide structure (406) arranged on the inside of the deflection section (403) on the deflection outer side (404), wherein the guide structure (406) has a constriction (407) on the deflection outer side (404) that reduces the pipe cross-section of the deflection section (403), wherein the constriction (407) forms two surface sections (408) opposite one another with respect to the central axis (4M3) of the deflection section (403), wherein at the point at which the pipe cross-sectional area is minimal, the surface sections (408) are viewed in a sectional plane (4S) that is transverse to the central axis (4M3) of the deflection section (43) each extend along a straight line (4G), wherein the straight lines (4G) are inclined at an angle (a, alpha) to one another.

31. Outgoing bend arrangement (100) according to claim 30, characterized in that the two surface sections (408) are V-shaped when viewed in said sectional plane (4S).

32. Outlet bend arrangement (100) according to one of the preceding claims 30 or 31, characterized in that starting from the straight line (4G) at the minimum pipe cross-sectional area, the surface section in the direction of the first pipe section (401) changes to the shape of the first pipe section (401) and in the direction of the second pipe section (402) changes to the shape of the second pipe section (402).

33. Outlet bend arrangement (100) according to claim 30 or 31, characterized in that a partial area of each surface section (408) is defined starting from the straight line at the minimum pipe cross-section by a family of adjacent straight lines (4G).

34. Outlet bend arrangement (100) according to claim 33, characterized in that starting from the straight lines which define the end of the partial area to the first pipe section (401) and to the second pipe section (402), the surface section in the direction of the first pipe section (401) has the shape of the first pipe section (401) and transitions towards the second pipe section (402) to the shape of the second pipe section (402).

35. Outgoing bend arrangement (100) according to one of the preceding claims 30 to 34, characterized in that the intersection point (409) of two opposing straight lines (4G) lies outside the deflection section (403); and / or that the intersection point of two opposing straight lines lies in a reference plane (4B) spanned by the first central axis (4M1) and the second central axis (4M2).

36. Outgoing bend arrangement (100) according to one of the preceding claims 30 to 35, characterized in that the constriction (407) extends from the deflection outer side (404) to at most half the diameter of the deflection section (403).

37. Outgoing bend arrangement (100) according to one of the preceding claims 30 to 36, characterized in that the deflection inner side (405) has a substantially circular-cylindrical inner surface (410), which inner surface (410) adjoins the two opposite surface sections (408) at the top and connects the two surface sections (408).

38. Outgoing bend arrangement (100) according to one of the preceding claims 30 to 37, characterized in that the two opposite surface sections (408) are connected on the deflection outer side (404) to a surface section (411) which is concavely rounded towards the interior.

39. Outlet bend arrangement (100) according to one of the preceding claims 30 to 38, characterized in that the cross-sectional area of the deflection section (403) in the region of the constriction (407) is variable over the length of the constriction (407) as seen in the flow direction (F), wherein the cross-sectional area decreases in the flow direction from the first pipe section to the minimum pipe cross-sectional area and then increases again towards the second pipe section.

40. Outlet bend arrangement (100) according to claim 39, characterized in that, viewed in the direction of the central axis (4M3) of the deflection section (403), the region with the minimum pipe cross-sectional area is at a distance (4A) is spaced apart from the first pipe section (401), wherein the distance (4A) is selected such that the said region is closer to the first pipe section (401) than to the second pipe section (402), in particular such that the distance (4A) is less than a third or less than a quarter of the total length of the central axis of the deflection section (403); or wherein the distance (4A) is selected such that the said region is closer to the second pipe section (402) than to the first pipe section (401), in particular such that the distance (4A) is greater than a third or greater than a quarter of the total length of the central axis of the deflection section; or wherein the distance (4A) is selected such that the said region is centrally located between the first pipe section (401) and the second pipe section (402).

41. Outlet bend arrangement (100) according to one of the preceding claims 30 to 40, characterized in that the first pipe section (401) has a cylindrical cross-section, that the cylindrical cross-section merges into the cross-section of the constriction, and that the second pipe section has a cylindrical cross-section, wherein the cross-section of the constriction merges into the cylindrical cross-section.

42. Outgoing bend arrangement (100) according to one of the preceding claims 30 to 41, characterized in that the central axis (4M3) of the deflection section (403) extends along an arc, wherein the center of the arc lies outside the deflection section (403); and / or that a line of intersection between the inner surface of the deflection outer side (404) and a reference plane (4B) spanned by the first central axis and the second central axis extends along an arc, wherein the center of the arc lies outside the deflection section (403).

43. Outlet bend arrangement (100) according to claim 8 or 9, characterized in that the deflection pipe section (200) or the further deflection pipe section (200) comprises a first pipe section (202) which extends along a first central axis (2M1), a deflection section (203) adjoining this first pipe section (202) with a deflection outer side (204) and a deflection inner side (205), which deflection section (203) extends along a deflection axis (2U) and the Flow medium is deflected relative to the first pipe section (202), a second pipe section (206) adjoining the deflection section (203) and extending along a second central axis (2M2), wherein the first central axis (2M1) and the second central axis (2M2) extend at an angle in the range of 80° to 100°, in particular at an angle of 90°, to one another, and the first central axis (2M1) extends at right angles to the vertical direction (2L) in the installed position, wherein the outlet bend (201) further comprises the at least one guide element in the form of a guide wall (207), wherein the guide wall (207) extends into the cross section of the outlet bend (201) and has at least one side surface (8, 9), wherein the guide wall (207) is arranged in the deflection section (203) on the deflection outer side (204) and / or in the second pipe section (206) is.

44. Outgoing bend arrangement (100) according to claim 43, characterized in that the at least one guide wall (207) has a front end (210) and a rear end (211), wherein, when the guide wall (207) is arranged in the deflection section (203) and in the second pipe section (206), the front end (210) lies in the deflection section (203) and the rear end (211) lies in the second pipe section (206); or wherein, when the guide wall (207) is arranged in the deflection section (203), the front end (210) and the rear end lie in the deflection section (203); or wherein, when the guide wall (207) is arranged in the second pipe section (206), the front end (210) and the rear end (211) lie in the second pipe section (206).

45. The exit bend (100) according to claim 43 or 44, characterized in that the at least one side surface (208, 209) is oriented in the direction of the deflection axis (2U) or in the direction of the second central axis (2M2); and / or that the at least one side surface (208, 209) extends parallel or at an angle to a central plane (2ME) passing through the two central axes (2M1, 2M2).

46. Outgoing bend arrangement (100) according to one of the preceding claims 43 to 45, characterized in that the at least one guide wall (207) has the shape of a thin wall, wherein the wall thickness of the guide wall (207) is preferably constant over the length of the guide wall and over the height of the guide wall; and / or wherein the wall thickness of the guide wall (207) is in the range of 0.5 to 8 millimeters, in particular in the range of 1 to 6 millimeters.

47. Outgoing bend arrangement (100) according to one of the preceding claims 43 to 46, characterized in that at least two, in particular exactly two, of said guide walls (207) are arranged at a distance (2A) from one another.

48. Outlet bend arrangement (100) according to claim 47, characterized in that the guide walls (207) are of the same type or identical to one another; and / or that the distance (2A) lies in a range of 25% to 45% of the diameter of the second pipe section (206); and / or that the at least two guide walls are arranged symmetrically to one another with respect to a center plane (2ME) extending through the two center axes (2M1, 2M2) and are each at the same distance from said center plane (2ME).

49. Outlet bend arrangement (100) according to one of the preceding claims 43 to 48, characterized in that the at least one guide wall (207) extends from an inner surface (212) of the deflection section and / or from an inner surface (213) of the second pipe section (206) into the interior space (214) of the outlet bend (21).

50. Outgoing bend arrangement (100) according to claim 49, characterized in that the at least one guide wall (207) adjoins the inner surface (212) of the deflection section (203) and / or the inner surface (212) of the second pipe section (206) with a foot section (215), wherein the foot section (215) is preferably rounded with a curve (216) or wherein the foot section (215) runs parallel to the side surfaces of the at least one guide wall (207).

51. Outgoing bend arrangement (100) according to claim 49 or 50, characterized in that the at least one guide wall (207) is in contact with the respective inner surface (213) over its entire length; or that the at least one Guide wall (207) is in contact with the respective inner surface (212, 213) over at least a first partial area (230) of its entire length, and that the at least one guide wall (207) is offset from the respective inner surface (212, 213) over at least a second partial area (231) such that a gap (229) is created between the guide wall (207) and the respective inner surface (212, 213).

52. Outgoing bend arrangement (100) according to one of the preceding claims 43 to 51, characterized in that the guide wall (208, 209) has two side surfaces (208, 209) spaced apart from one another, wherein the two side surfaces (208, 209) preferably run parallel to one another; and / or wherein the two side surfaces (208, 209) preferably run parallel to a center plane (2ME) running through the two center axes (2M1, 2M2); or wherein the two side surfaces (208, 209) extend at an angle to one another, such that the distance between the two side surfaces (208, 209) decreases with increasing distance from the inner surface (212, 213) of the second pipe section (206) or the deflection section (203) and that the side surfaces (208, 209) merge into one another at an end face in the interior of the second pipe section (206) or the deflection section (203).

53. Outgoing bend arrangement (100) according to one of the preceding claims 43 to 52, characterized in that the at least one guide wall (207) has an end face (217) which is preferably rounded with a curve (218).

54. Outgoing bend arrangement (100) according to one of the preceding claims 43 to 53, characterized in that a plurality of guide walls (207) are arranged next to one another and spaced from one another, wherein preferably two adjacent guide walls (207) are connected to one another by a curved wall, which wall extends from the end face (217) of the guide wall lying closer to a center plane (2ME) running through the two center axes (2M1, 2M2) to the foot region of the guide wall lying further away from the center plane (2ME).

55. Outgoing bend arrangement (100) according to one of the preceding claims 43 to 54, characterized in that that the height of the at least one guide wall (207) increases continuously at right angles from an inner surface (212) of the deflection section (203) in a first curved section (219) of the deflection section (203) and is substantially constant in a second curved section (220) of the deflection section (203), wherein the first curved section (219) preferably extends over a length range of one third to one half of the total length of the deflection section (203);and / or that the at least one guide wall (207) in the second pipe section (206) has a substantially constant height over a first partial section (221) as seen at right angles to an inner surface (213) of the second pipe section (206), and that the at least one guide wall (207) in a second partial section (222) extends at an angle in the range of 35° to 65°, in particular in the range of 40° to 50°, to the inner surface (213), so that the height of the guide wall (207) in the second partial section (222) decreases continuously.; 56. Outgoing bend arrangement (100) according to one of the preceding claims 43 to 55, characterized in that, seen in cross-section transverse to the deflection axis (2U) and / or transverse to the second central axis (2M2), an angle (2a, 2alpha) between the at least one side surface (208, 209) of the at least one guide wall (207) and a tangent (2T) which extends tangentially to the inner surface (212, 213) of the deflection section (203) and / or of the second pipe section (206) and through the intersection point between the respective side surface (208, 209) and the respective inner surface (212, 213), is in the range from 40° to 90°.

57. Outgoing bend arrangement (100) according to one of the preceding claims 43 to 56, characterized in that, viewed in a center plane (2ME) running through the two center axes (2M1, 2M2), the deflection section (203) on the deflection outer side (204) extends in an arc shape, in particular in the shape of a circular arc, with an arc (223); and / or that, viewed in a center plane (2ME) running through the two center axes (2M1, 2M2), the deflection section (203) on the deflection inner side (205) is designed as a deflection edge (224).

58. Outlet bend arrangement (100) according to one of the preceding claims 43 to 57, characterized in that the at least one guide wall (207) is formed on the inner surface (212) of the deflection section (203) and the inner surface (213) of the second pipe section (206); or that the at least one guide wall is formed on an insert which is inserted into the deflection section and the second pipe section can be used.

59. Outlet bend arrangement (100) according to one of the preceding claims 43 to 58, characterized in that the first pipe section (202) has a stop surface (226) which, viewed in the flow direction of the flow medium, is arranged in front of the deflection section (203) and in front of the at least one guide wall (207).

60. Sanitary arrangement comprising an outlet bend arrangement according to one of the preceding claims, a sanitary article, such as a toilet bowl or a urinal, with a connection area for connecting a drain pipe socket, wherein the drain pipe socket opens into the first horizontal pipe section (102) and wherein a drain pipe can be connected to the second horizontal pipe section (104); or for connecting the first horizontal pipe section (102).

61. Use of an outlet bend (1) according to one of the preceding claims 1 to 59 in a drain line of a sanitary article, such as a toilet bowl or a urinal.

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