DE202011110778U1 - Conduit branch piece for downpipes - Google Patents

Abstract

Conduit branch (1) for a downpipe, in which waste water in the form of a waste water jacket (W) can be guided on a wall (11, 20) along a fall direction (F), comprising an upper downcomer section (2) with an inlet opening (3), a deflecting section (4) adjoining the upper downcomer section (2) and a lower downcomer section (5) adjoining the deflecting section (4) with an outlet opening (6) and at least one inlet section (7) located in the region of the deflecting section (4) in the line branch piece (1) opens, wherein the deflection section (4) at least one deflection region (8) and a flow area (12) having a wall (11), characterized in that the deflection region (8) along a flow curve or flow line (M) extending and around the flow curve or flow line (M) formed partially curved deflection surface (10) for bundling the waste water as a jet (S), w Elke flow curve (M) with respect to the falling direction (F) at a first angle (β) and with respect to a plane (E) extending through the falling direction (F) extends at a second angle (α), wherein is directed by the two angles (β, α), the curved deflection surface (10) with its flow curve or flow line (M) substantially tangentially to the wall (11) of the flow area (12).

Description

TECHNICAL AREA

The present invention relates to a branch line for downpipes according to the preamble of claim 1.

STATE OF THE ART

From the prior art, such a branch line piece is known. For example, the shows CH 418 067 such a branch line piece.

The applicant also distributes a branch line under the name Geberit Sovent, which is a fitting which provides a cost-effective and sophisticated solution for the delivery of waste water to wastewater sewer lines in multi-storey buildings, such as high-rise buildings.

The use of the product Geberit Sovent and also of branch pieces according to the CH 418 067 has led to very good results. However, in the meantime, the requirements with regard to discharge capacity, drop height and also the size of such pipe sections have increased.

In particular, a negative pressure in the supply line during operation should be largely prevented. The negative pressure is created by the effluent flowing in the downpipe and can be so large, especially at large fall heights, that wastewater is sucked out of the existing in the supply line siphons. Consequently, the siphon no longer fulfills the function as a closure element between downpipe and the corresponding waste water drains, such as toilet drain, etc.

The formation of the negative pressure can be reduced, for example, in which braking elements or guide elements are arranged which brake or redirect the wastewater flowing in the direction of the fall in the region of the supply line. However, this has a negative effect on the power or the volume flow of the branch line piece, which means that line branch pieces with larger pipe diameters must be used in order to achieve a comparable performance. This is again undesirable, since so greater installation space is required.

PRESENTATION OF THE INVENTION

Based on this prior art, the invention has for its object to provide a line branch piece, which overcomes the disadvantages of the prior art. In particular, a line branch piece is to be created whose power is increased while maintaining the same size and whose performance is kept constant at a reduced size.

Such a problem is solved by the branched line piece according to claim 1. Accordingly, a line branch piece for a downpipe, in which wastewater in the form of a sewage jacket on a wall along a direction of fall is feasible, an upper downcomer section with an inlet opening, a subsequent to the upper downcomer section deflecting section and a the downstream end of the downcomer section with an outlet opening , And at least one supply line section, which opens in the region of the deflection in the line branch piece. The deflection section comprises at least one deflection region and a flow region with a wall. The deflection region comprises a deflection surface running along a flow curve or flow line and curved around the flow curve or flow line for bundling the wastewater as a jet. The flow curve or flow line extends at a first angle with respect to the direction of fall and with a second angle with respect to a plane which extends through the direction of fall. Due to the two angles, the curved deflection surface with its flow curve or flow line is directed essentially tangentially onto the wall of the flow region.

Due to the tangential deflection, the flow resistance across the branch piece is smaller. Furthermore, there are no negative negative pressures in the region of the supply line section. Thus, with a constant pipe diameter, a greater performance can be achieved or with a constant power a smaller pipe diameter can be selected.

The curved deflection surface preferably has the shape of a channel which extends along the flow curve or flow line. The channel bundles the wastewater to the said beam and then leads this tangentially to the wall of the flow area.

Particularly preferably, the deflection region has the shape of a pipe bend, wherein the pipe bend provides a channel extending along the flow curve or streamline. Through a pipe bend a particularly simple structure can be created.

Preferably, the deflection surface or the channel is concave.

The flow curve or flow line can be formed in the region of the deflection surface as a straight axis or as a curved line.

Preferably, a curve extends through the centers of the pipe sections of the branch pipe, the curve in the region of the upper downcomer section, in parts of the flow area and the lower downcomer section in said plane and wherein the curve in the region of the deflection region with respect to the direction of fall laterally from the plane is distracted. Thus, the above-described tangential impact can also be achieved.

Preferably, a flow divider is arranged in the direction of fall before the deflection, wherein the flow divider, the waste water jacket can be torn off. The flow divider preferably directs the waste water directly to the deflection section.

Preferably, the deflection region is arranged in the direction of fall directly after the upper downcomer section, and / or the flow-through region is arranged immediately after the deflection region, and / or the lower downflow section is arranged immediately after the flow-through region.

The feed line section preferably has an opening region in which the feed line opens into the line branch piece via the feed line section, wherein the mouth region is separated from the flow region by a dividing wall, so that the entry of waste water from the flow region into the mouth region is prevented.

Preferably, a bleed passage is arranged between the flow area and the feed line section, via which pressure differences between the flow area and the mouth area can be compensated.

Further advantageous embodiments are characterized in the subclaims.

BRIEF DESCRIPTION OF THE DRAWINGS

Preferred embodiments of the invention are described below with reference to the drawing, which serve only for explanation and are not to be interpreted as limiting. In the drawing show:

1 a side view of a line branch piece according to an embodiment of the present invention;

2 a front view of the line branch piece after 1 ;

3 a perspective view of the line branch piece after 1 in the flow state;

4 a view of the line branch piece after 1 from the side in the flow state;

5 a detailed view of the 4 from the back;

6 a view of the line branch piece after 1 from above in the flow state; and

7 a sectional view taken along the line VII-VII of 1 in the flow state.

DESCRIPTION OF PREFERRED EMBODIMENTS

The 1 and 2 show a line branch piece 1 for use in waste water sewer pipes in multi-storey buildings. The pipe branch piece 1 is used to connect a wastewater supply from a floor in the downpipe, which extends from floor to floor, usually over the entire building height. The supply line is therefore on the line branch piece 1 connected to the downpipe.

The pipe branch piece 1 includes an upper downcomer section 2 with an entrance opening 3 , a the upper downcomer section 2 subsequent deflection section 4 and the deflection section 4 following lower downflow section 5 with an outlet opening 6 , as well as at least one supply section 7 , via which additional wastewater is introduced into the downpipe. The upper downcomer section 2 , the deflection section 4 and the lower downcomer section 5 be through a wall 11 . 20 surround. The upper downcomer section 2 of the branch line piece 1 is connected to an upper downcomer, not shown here, and the lower downcomer section 5 is connected to a lower downpipe, also not shown here. The supply section 7 stands in connection with the sewers of, for example, an apartment in a multi-storey building and is sealed there via a siphon to the pipe system, as explained above. The connection between the pipe section 1 and the downpipe or the supply line is preferably via a material connection, such as a welded connection.

In the 3 a schematic representation of the wastewater is shown. The downpipes are arranged so that their central axis lies in the vertical V. Consequently, the waste water flows in the vertical V along a fall direction F and forms on the wall 20 the downpipe and partly also in the downpipe sections 2 . 3 a circulating cylindrical wastewater film or wastewater jacket W. In this context, it should be mentioned that wastewater, which is composed essentially of water and solids, does not differ substantially in terms of flow effects from water.

In the central region of the downpipe is an air column L, which is located in the downpipe between two branch lines 1 extends. Due to the flow of the waste water jacket W, the air column L is placed in pulsating motion, with a too large pulsation has a negative effect on the efficiency of the line branch piece 1 Has.

The diameter of the down pipe is to be dimensioned so that at the maximum volume flow, the wastewater as waste water jacket W flows away, whereby the air column L is present.

The wastewater is discharged from the upper downpipe via the inlet 3 in the line branch piece 1 along the fall direction F, which substantially corresponds to the vertical V, introduced. The wastewater passes through the upper downpipe section 2 and is through the deflection section 4 redirected as described below. In the area of the deflection section 4 is via the feeder section 7 additional wastewater introduced into the downpipe. After passing the deflection section 4 the diverted wastewater mixes with the additional waste water and leaves the branch pipe section 1 over the lower downcomer section 5 or the outlet opening 6 towards the lower downpipe. Due to the flow characteristics, a waste water jacket W and an air column L are then also created in the lower downpipe once the wastewater has traveled a certain distance.

The deflection section 4 here includes a deflection area 8th , which deflects the waste water W from the direction of fall F, and seen in the direction of fall F after the deflection region 8th arranged flow range 12 , The flow range 12 is preferably immediately after the deflection 8th , ie directly to the deflection area 8th then, arranged, while the deflection area 8th directly or directly to the upper downcomer section 2 adjoined. The flow range 12 then flows directly into the lower downflow section 5 Thus, the lower downcomer section is 12 immediately after the flow range 12 arranged.

The deflection area 8th comprises a deflection surface running along a flow curve or flow line M and curved around the flow curve or flow line M. 10 for bundling the waste water as jet S. The curvature of the deflection surface 10 is chosen so that the wastewater jacket W through the deflection 10 is essentially bundled as a beam S and as beam S the deflection surface 10 leaves again. In the direction of the flow curve or the flow line M, the flow curve or the flow line M can also be used as the center axis of the curvature of the deflection surface 10 be designated.

In the 4 and 6 it is shown that the deflection surface 10 to the fall direction F seen with respect to the direction of fall F at a first angle β. It can also be said that the deflection 10 in a plane E, which extends through the direction of fall F, with the angle β to the direction of fall F is. The level E is in the 4 parallel to the drawing sheet surface. The plane E extends substantially through the central axis of the upper downcomer section 2 and the lower downcomer section 5 , With respect to the plane E, the deflection surface runs 10 in the direction of the fall direction F seen with a second angle α. This can be done in the 6 be recognized.

The first angle β is preferably selected in the range of 90 ° to 175 °, in particular in the range of 125 ° to 155 °, particularly preferably 140 °. The second angle α is preferably selected in the range of 0 ° to 45 °, in particular in the range of 10 ° to 30 °, particularly preferably 19 °.

The curved deflection surface 10 is thus with its central axis M substantially tangential to the wall 11 of the flow area 12 directed. Thus, the sewage steel S is substantially tangential to the wall 11 the flow area 12 on. Due to the tangential impact, the sewage jet S along a flow curve through the flow area 12 guided and one with respect to the wall 11 centrally through the flow area 12 running curve 23 set in rotation. The sewage jet S flows along the wall 11 through the flow area 12 , Consequently, it can be said that the sewage along the wall 11 helically in the direction F falls.

The curve 23 is essentially placed through all centers of the pipe sections of the branch line piece. The curve can be in the 4 and 5 be well recognized. Regarding the curve 23 can also be said that these in the upper downcomer section 2 , in parts of the flow range 12 and the lower downcomer section 5 Part of level E is or in the level E lies or the plane E spans. The flow direction of the waste water is through the deflection 8th laterally to plane E and to the curve 23 deflected so that the sewage tangent to the wall 11 is guided and thus the rotation around the curve 23 is achievable. This deflection 19 will be in the 5 shown. Consequently, the wastewater rotates around the curve after the deflection 23 , The maximum deflection 19 is preferably in the region of the end 21 the deflection area 8th ,

The flow line or the flow curve is preferably a curve that is continuous in the mathematical sense, so that the wastewater undergoes, as far as possible, a turbulence-free deflection.

In other words, it can be said that the deflection area 8th is formed so that the wastewater with respect to the fall direction F is deflected. The deflection is such that the wastewater as wastewater jet tangentially to the wall 11 of the flow area 12 occurs. Due to the tangential impact, the sewage stream is centered around the flow area 12 running line 23 set in rotation, and is called a rotating flow along the wall 11 through the flow area 12 feasible.

The described rotation of the wastewater has the advantage that a large deceleration of the wastewater and thus a reduction in performance can be avoided. The rotation of the sewage along the wall 11 So has the advantage that with a constant diameter of the down pipe a larger volume flow can be achieved or the diameter can be reduced at a constant flow rate. The rotation also allows an air column L from the upper downcomer section 2 up to the lower downpipe section 5 can extend. There is thus no interruption of the column of air by wastewater and the performance is not adversely affected. Due to the continuous air column there is no negative pressure in the system and thus it can not lead to an emptying of the siphons in the supply lines. In addition, no congestion zones with other negative effects, such as the pulsation of the air column, arise.

Based on 3 to 7 Now, the implementation of the wastewater through the branch line piece 1 explained in more detail. After entering through the upper downcomer section 2 the wastewater flows through the deflection section 4 and leaves the line branch piece 1 then through the lower downcomer section 5 , In the deflection section 4 , which is located directly between the upper downcomer section 2 and the lower downcomer section 5 is located, the sewage through the deflection area 8th with the deflection surface 10 deflected so that the wastewater as a beam S tangent to the curved wall 11 the flow area 12 incident. The water then flows through the flow area as a helical flow 12 and then flows into the lower downcomer section 5 ,

In the 4 can be well recognized that the wastewater after the deflection by the deflection area 8th on the wall 11 opposite the supply section 7 in the direction of F is performed. The same is true in the 6 shown. The management of the wastewater with respect to the supply line section 7 has the advantage that the wastewater can be continuously fed to a wall, which does not break the rotation.

In the 7 is a sectional view taken along the section line VII-VII in the 1 shown. Consequently, it is the lower portion of the deflection 4 to the lower downcomer section 5 directed towards.

The transition between flow area 12 and the lower downcomer section 5 is preferably designed so that the wastewater tangentially into the lower downcomer section 5 flows. Consequently, the lower section stands 15 immediately before the mouth into the lower downcomer section 5 tangential to the wall 20 of the lower downcomer section. In the course of one with the lower downcomer section 5 In connection with the sewer line, the rotation due to flow effects then becomes a wall flow W. The tangential inflow of the lower downcomer section has the advantage that no congestion zone for the waste water in the lower downcomer section can arise. Experiments have shown that in the case of the formation of a storage zone by the outflowing water, a strong negative pressure in the supply line may arise.

Preferably, the curved deflection surface 10 the shape of a canal 24 on, wherein the channel extends substantially along the central axis M.

The deflection area 8th has in particular the shape of a pipe bend 9 on, with the channel 24 or the deflection surface 10 then through the pipe bend 9 provided. The pipe bend 9 is bent substantially at the angle β and deflected with respect to the plane E by the angle α to the direction of fall F. In the case of the pipe bend, the central axis M is formed as a curved axis, the curvature substantially corresponding to the central radius of the pipe bend. Thus, with respect to the center axis M of the deflection 10 It should be noted that this may be formed as a straight axis or formed as a curved axis. In the Curved variant, the flow losses are slightly lower.

The deflection surface 10 or the channel 24 are preferably concave with respect to the interior of the line branch piece, so that the water steel is provided in a simple manner.

In the present embodiment, a flow divider 18 in the direction of fall F seen before the deflection 4 is arranged, with the flow divider 18 the wastewater jacket W can be opened. After tearing open the wastewater jacket W, the wastewater then flows to the deflection area 8th to where by the deflection 10 the water jet S is formed. The flow divider 18 is preferably arranged such that the total amount of wastewater on the deflection 8th is redirected. Next has the flow divider 18 also the advantage that the disruption of the film flow, the pulsation of the air column L and thus the emergence of pressure differences in the branch line piece can be reduced

The flow range 12 is, as already mentioned above, directly in connection with lower downcomer section 5 , in which then the wastewater flows from the flow area.

Next, the flow range 12 with a section 25 the wall 11 at an angle γ angle or inclined to the fall direction F and to the vertical V stand. This is in the 4 shown. The wall 11 is seen from the vertical V to the first deflection 8th inclined towards. Preferably, the angle γ is in the range of 2 ° to 12 ° with respect to the vertical V.

The at least one supply line section 7 is arranged so that this substantially at the height of the second deflection 8th in the line branch piece 1 empties. In the present embodiment, a total of six lead portions 7 to disposal. There are three feeder sections 7 with large diameter and three more feeder sections 7 each arranged with a smaller diameter T-shaped, wherein the supply line sections 7 are arranged at an angle of 90 ° to each other. The group feeder sections 7 with the large diameter are preferably seen in the direction of fall F over the group lead sections 7 arranged with the small diameter.

The supply section 7 Wastewater leads to the branch line, the wastewater over a mouth area 13 in the line branch piece 1 empties. The mouth area 13 is through a partition 14 from the flow area 12 separated, allowing an entry of effluent from the flow area 12 in the mouth area 13 is prevented. Between the first deflection area 8th and the partition 14 it is also possible to have a ventilation passage 16 in the partition 14 to arrange, with an air pressure equalization between the flow area 12 and the mouth area 13 can take place, what with the arrow 17 is shown. With this pressure compensation, a flow-induced pressure pulsation in the system is prevented or greatly reduced, so that the risk of formation of negative pressure in the supply lines 7 is significantly reduced.

In the 5 is the preferred arrangement of the vent passage 16 shown. Preferably, the vent passage 16 with respect to the direction of fall F laterally of the deflection 10 arranged, which has the advantage that the flowing sewage not through the vent passage 16 in the mouth area 13 can flow.

The adjustment of the pressure difference has the advantage that large differences in pressure at the various points by permanent compensation can not even arise.

The line branch piece is preferably made of a plastic by means of a plastic bubble process and is integrally formed.

Preferred diameters of the line branch piece are 110 mm and 160 mm. Experiments have shown that with the deflection according to the present invention with a smaller diameter, the same performance can be achieved.

In summary, it can be said that with the helical passage of the waste water through the branch pipe branch, the flow losses can be reduced, whereby the performance can be improved.

LIST OF REFERENCE NUMBERS

1

 Leg piece

2

 upper downpipe section

3

 inlet opening

4

 deflecting

5

 lower downpipe section

6

 outlet opening

7

 lead portion

8th

 deflection

9

 Elbows

10

 deflection

11

 wall

12

 Flow range

13

 mouth area

14

 partition wall

15

 lower section

16

 Vent passage

17

 pressure equalization

18

 flow divider

19

 deflection

20

 wall

21

 End of the deflection area

22

 supply

23

 Line, central axis

24

 channel

25

 inclined section

F

 falling direction

L

 air column

S

 beam

V

 vertical

W

 water jacket

α

 Angle deflection surface

β

 Angle deflection surface

γ

 angle

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• CH 418067 [0002, 0004]

Claims (14)

Line branch piece ( 1 ) for a downpipe in which wastewater in the form of a waste water jacket (W) on a wall ( 11 . 20 ) along a fall direction (F) is feasible, comprising an upper downflow section ( 2 ) with an inlet opening ( 3 ), the upper downcomer section ( 2 ) subsequent deflection section ( 4 ) and a the deflection ( 4 ), followed by the lower downpipe section ( 5 ) with an outlet opening ( 6 ), as well as at least one feeder section ( 7 ), which in the region of the deflection ( 4 ) in the line branch piece ( 1 ), wherein the deflection section ( 4 ) at least one deflection area ( 8th ) and a flow area ( 12 ) with a wall ( 11 ), characterized in that the deflection region ( 8th ) a along a flow curve or flow line (M) extending and around the flow curve or flow line (M) partially curved deflecting formed ( 10 ) for bundling the waste water as a jet (S), which flow curve or flow line (M) with respect to the falling direction (F) at a first angle (β) and with respect to a plane (E) extending through the falling direction (F) extends, with a second angle (α), wherein by the two angles (β, α), the curved deflecting surface formed ( 10 ) with its flow curve or flow line (M) substantially tangentially to the wall ( 11 ) of the flow area ( 12 ). Conduit branch piece according to claim 1, characterized in that the curved deflection surface ( 10 ) the shape of a canal ( 24 ), which extends along the flow curve or flow line (M). Conduit branch piece according to claim 1 or 2, characterized in that the deflection region ( 8th ) the shape of a pipe bend ( 9 ), wherein the pipe bend ( 9 ) provides a channel extending along the flow curve (M). Line branch piece according to one of the preceding claims, characterized in that the deflection surface ( 10 ) or the channel ( 24 ) is concave. Conduit branch piece according to one of the preceding claims, characterized in that the flow curve or flow line (M) in the region of the deflection surface ( 10 ) is formed as a straight axis or as a curved line. Main branch piece according to one of the preceding claims, characterized in that a curve ( 23 ) through centers of the pipe sections of the line branch piece ( 1 ), wherein the curve in the region of the upper downcomer section (FIG. 2 ), in parts of the flow range ( 12 ) and the lower downcomer section ( 5 ) lies in the plane (E) and where the curve ( 23 ) in the region of the deflection region ( 12 ) with respect to the direction of fall (F) laterally from the plane (E) is deflected. Line branch piece according to one of the preceding claims, characterized in that the deflection region ( 8th ) in the direction of fall (F) immediately after the upper downcomer section ( 2 ), and / or that the flow area ( 12 ) immediately after the deflection area ( 8th ) is arranged, and / or that the lower downflow section ( 5 ) immediately after the flow area ( 12 ) is arranged. Conduit branch piece according to one of the preceding claims, characterized in that a flow divider ( 18 ) in the direction of fall (F) seen before the deflection section ( 4 ) is arranged, wherein with the flow divider ( 18 ) the waste water jacket (W) can be opened. Conductor branch piece according to one of the preceding claims, characterized in that the supply line section ( 7 ) over a mouth area ( 13 ), in which the supply line via the supply line section ( 7 ) in the line branch piece ( 1 ), the mouth region ( 13 ) by a partition wall ( 14 ) from the flow area ( 12 ) is separated, so that an entry of wastewater from the flow area ( 12 ) into the estuary ( 13 ) is prevented. Conduit branch piece according to claim 9, characterized in that between the flow area ( 12 ) and the feeder section ( 7 ) a vent passage ( 16 ) is arranged over which pressure differences between flow area ( 12 ) and mouth area ( 13 ) are compensable. Conduit branch piece according to claim 9, characterized in that the passage ( 16 ) and the deflection area ( 8th ) with respect to the direction of fall (F) are arranged laterally offset from each other, so that a passage of sewage through the passage ( 16 ) is preventable. Main branch piece according to one of the preceding claims, characterized in that an inclined section ( 25 ) of the wall ( 11 ) in the flow area ( 12 ) with an angle (γ) in the range of 2 to 12 ° to the fall direction (F). Conduit branch piece according to one of the preceding claims, characterized in that the wall ( 11 ) immediately after the inclined section ( 25 ) at least in sections is curved, in particular about an axis which is perpendicular to the direction of fall (F). A line branch piece according to one of the preceding claims, characterized in that the first angle (β) is in the range of 90 ° to 175 °, in particular in the range of 125 ° to 155 °, particularly preferably 140 °, and / or in that the second angle (β) α) in the range of 0 ° to 45 °, in particular in the range of 10 ° to 30 °, particularly preferably 19 °.

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