DE102018121292A1 - Drainage shaft and drainage system - Google Patents

Abstract

The invention relates to a drainage shaft (1) with at least one shaft body (10) which has at least one inlet opening (12) and at least one outlet opening (14), and with at least one baffle element (20) arranged in the shaft body (10) is. The drainage shaft (1) has at least one drainage element (40) for discharging a fluid from the shaft body (10) via the outlet opening (14), the drainage element (40) being arranged in the shaft body (10) below the baffle wall element (20) is. The invention also relates to a drainage system with at least one pipe system and a drainage shaft (1).

Description

The invention relates to a drainage shaft according to the preamble of claim 1. Furthermore, the invention relates to a drainage system, in particular for a tunnel drainage, with such a drainage shaft.

When draining tunnels, it is important to be able to safely discharge flammable liquids in addition to normal surface water. For this purpose, a first piping system that is freely accessible from the surface - e.g. a channel run - connected to a closed pipe system via a siphon. Such a siphon lock in a baffle shaft serves, among other things, to shut off flammable gases from the piping system in relation to the tunnel space.

From the EP 1 582 638 A2 A control shaft is known which provides a siphon function between an inlet and an outlet of the control shaft by means of partition walls and a cover arranged above it.

The invention is based on the object of providing a drainage shaft which is simple in construction and inexpensive to produce, takes up a small amount of space, provides accelerated drainage when necessary and enables simplified maintenance.

According to the invention, this object is achieved with respect to the drainage shaft by the subject matter of claim 1 and with respect to the drainage system by the subject matter of claim 9. Preferred embodiments are specified in the dependent claims.

Specifically, the object is achieved by a drainage shaft with at least one shaft body that has at least one inlet opening and at least one outlet opening, and with at least one baffle element that is arranged in the shaft body. The drainage shaft has at least one drainage element for draining a fluid from the shaft body via the outlet opening, the drainage element being arranged in the shaft body below the baffle wall element, in particular for providing a fluid drainage function through the drainage element via the outlet opening and / or a siphon function through the drainage element in combination with the baffle element.

The invention is based on the basic idea of providing a drainage shaft or a diving wall shaft, in particular for tunnel drainage, the outlet opening of the drainage shaft being advantageously connected in terms of flow to a discharge element. In this way, a fluid volume accumulated in the shaft body can enter the drainage element and be fed to the outlet opening in order to enable drainage from a predeterminable water level in the shaft body.

Furthermore, based on the advantageous combination of baffle element and drainage element, a siphon function, a back-up and retention function, an intermediate partition function and a drainage acceleration can be provided. In particular, a bilateral or bilateral drainage function can also be provided by means of the baffle element and the drainage element.

According to the invention, it is provided that water or wastewater or fluid can flow into the shaft body of the drainage shaft via the inlet opening. The water is collected in the shaft body of the drainage shaft and temporarily stored or accumulated.

At least one discharge element is arranged in the shaft body of the drainage shaft, for discharging a fluid or water from the shaft body via the outlet opening. The derivation element is arranged in the shaft body below the baffle element.

The discharge element is preferably designed in connection with the outlet opening in such a way that, in particular from a specific, predeterminable water level in the shaft body, the fluid can exit the shaft body via the outlet opening. In this way, a targeted intermediate storage of water that enters the shaft body via the at least one inlet opening is available.

While the outlet opening is formed at a certain distance from a bottom of the shaft body, a specific backflow height can be achieved by the discharge element having side flanks opposite the outlet opening and thus sealing the outlet opening up to a minimum water level. In this way, the drainage element can be used to drain water from the shaft body in a targeted manner.

In particular, the drainage element can be designed in such a way that a drainable water volume changes over time as a function of the water level in the shaft body.

A siphon function can be provided by arranging the drain element below the shaft body. After entering the shaft body, the water must pass through the baffle and enter the drainage element in order to be drained through the outlet opening. In this sense, the outlet opening is also formed below the baffle element in the shaft body.

Using the drainage element and the baffle element, a siphon function, e.g. to prevent backflow of odors from the connected pipe system, be provided within the shaft body.

The baffle element and the derivation element are preferably positioned centrally in the shaft body. On the basis of the baffle wall element and the drainage element, bilateral or bilateral drainage of the shaft body can be provided as required. Furthermore, a compact construction of the drainage shaft can be provided, and simplified maintenance is ensured.

According to one embodiment, it is provided that the baffle element has at least a first side end. The baffle element can be formed in one piece or have a baffle frame and at least one wall element which is slidably and / or exchangeably received in the baffle frame, so that the first side end of the baffle element can be variably adjusted.

The at least one first side end of the baffle element represents the lowest point of the baffle element in the shaft body at which water has to pass the baffle element in order to reach the inlet opening to the drainage element. In this sense, the first side end of the baffle element can be used to determine from which minimum water level in the shaft body a siphon function can be provided between the at least one inlet opening and the outlet opening.

The baffle element is preferably formed in one piece. In particular, the baffle element can have the first and a second side end, the baffle element being symmetrical and being arranged centrally above the discharge element or the outlet opening. In this sense, the baffle wall element is to be understood as a rigid component with fixed side ends.

Alternatively, the baffle element can be formed with a baffle frame. The at least one first wall element can be inserted, inserted or the like in the baffle frame, so that there is a suitable water-impermeable connection between the respective wall element and the baffle frame.

By means of the baffle wall frame and the first wall element, the at least one first side end can be set as desired so that a siphon function can be variably configured.

If the baffle frame is formed with the first and the second side end, the first wall element and a second wall element are preferably provided in connection with the baffle frame.

In general, the baffle element can, for example, be essentially V-shaped or U-shaped in order to expediently extend over the derivation element.

According to a preferred embodiment it is provided that the derivation element has at least a first side edge. The first side end of the baffle element is arranged below the first side edge of the discharge element, in order to provide a siphon function within the shaft body.

The at least one first side edge of the drainage element can be understood as a side edge that extends in the longitudinal direction of the drainage element, in particular to limit an inner volume of the drainage element for supplying water or fluid to the outlet opening.

The derivation element is preferably designed symmetrically with the first and a second side edge, the baffle element being designed symmetrically with the first and second side ends.

A siphon function can be provided by arranging the first or second side end of the baffle element below the first or second side edge of the discharge element. In particular, a siphon function can be achieved within the shaft body when the water level within the shaft body reaches the first or second side end of the baffle element. In this case, the water cannot yet pass over the first or second side edge into the drainage element up to the outlet opening. At the same time, there is an air barrier between the inlet opening and the outlet opening of the shaft body along the first or second side end of the baffle wall element.

According to one embodiment, the drainage element has a drainage surface which extends essentially in the direction of a longitudinal axis of the drainage element and is provided with a first longitudinal end and a second longitudinal end, the second longitudinal end of the drainage surface being in or at the outlet opening of the shaft element for discharging the fluid or water is arranged or received from the shaft body.

The drainage surface is the area within the drainage element into which the pent-up water or fluid can enter from a predeterminable water level via the first or second side edge in order to be discharged to the outlet opening. The first and second longitudinal ends of the dissipation surface in particular also represent the first and second longitudinal ends of the dissipation element.

For the purposes of the present invention, the discharge area is preferably delimited by the first and second side edges. Furthermore, the discharge surface with the second longitudinal end expediently adjoins the outlet opening in such a way that a fluid transition for the discharge of water from the shaft body is possible.

According to one embodiment, the lead surface forms a variable lead cross section along the longitudinal axis, in particular a lead cross section that increases from the first longitudinal end to the second longitudinal end.

In the sense of the present invention, the lead cross section describes the area of the lead element which is formed by the at least one first side edge and the lead surface.

When the discharge element is arranged on a wall of the shaft body, the discharge cross section can be expediently limited by the wall of the shaft body, the side edge of the discharge element and the discharge surface of the discharge element. In this case, accumulated, accumulated water or fluid from the manhole body can enter the discharge cross-section via the first side edge and can be transferred along the discharge surface to the outlet opening.

If the drainage element is formed with the first and the second side edge, pent-up water can enter the drainage cross section via the first and / or second side edge. In this case, the lead cross section is expediently limited by the first and second side edges and the lead surface of the lead element.

According to the present invention, it is provided that the lead cross section along the longitudinal axis of the lead element, that is, along the lead surface between the first and second longitudinal ends, can be designed as a variable cross section. The cross section in the longitudinal direction of the derivation element or the derivation surface can thus taper or expand.

It is preferably provided that the lead cross-section has a minimum size at the first longitudinal end of the lead surface or the lead element and a maximum lead cross-section is provided at the second longitudinal end. In this sense, the maximum discharge cross-section of the discharge element is preferably formed at the outlet opening of the shaft body.

In particular, the lead surface can have a trapezoidal base area in order to form a variable lead cross section in the longitudinal direction. In this sense, the base area is to be understood as a projected area of the three-dimensionally designed derivation area.

In order to achieve a suitable discharge of fluid or accumulated water from the shaft body, it is particularly provided that the size or a diameter of the outlet opening substantially corresponds to the size or a diameter of the maximum discharge cross-section of the discharge element.

There is the advantage that both small amounts of water and large amounts of water can be expediently derived from the shaft body.

In a further embodiment, the discharge surface for receiving and discharging fluid is essentially semicircular, in particular cove-shaped or angular, preferably box-shaped, V-shaped or polygonal.

In the sense of the present invention, the semicircular lead surface is preferably delimited by the first side edge and the second side edge of the lead element. The semicircular-shaped or cove-shaped drainage surface extends between the first and second side edges in order to allow a convenient drainage of liquid from the shaft body. In this way, no residues or dirt can accumulate along the drainage surface and clog the drainage element.

According to a further preferred embodiment, the derivation surface extends along the longitudinal axis of the derivation element the first and second longitudinal ends and is inclined in the direction of the outlet opening with respect to the horizontal. In particular, the discharge surface and the at least one first side edge can be designed to be inclined with respect to the horizontal. It is also possible to conduct the fluid through the drainage element to the outlet opening if the drainage surface is horizontal (ie not inclined). In this case, care must be taken to ensure that the cross-sectional area at the longitudinal end opposite the outlet opening is smaller than the cross-sectional area at the second longitudinal end in the region of the outlet opening. A hydrostatic pressure difference results from the cross-sectional area difference when a fluid is applied to the discharge element. The fluid then flows along the hydrostatic pressure gradient to the second longitudinal end with the outlet opening.

According to the invention, the drainage element has an upward or downward slope, so that the drainage of water from the shaft body is facilitated. The first longitudinal end of the derivation element or the derivation surface is arranged higher in the shaft body than the second longitudinal end of the derivation element or the derivation surface.

Because the at least first side edge has an incline or incline, fluid can be drained off at a lower water level in the shaft body. As the water level rises, more fluid can be drained from the shaft body. In this sense, the design of the drainage element can be understood as a progressive design of the drainage function.

According to a further embodiment, the dewatering shaft has at least one sludge bucket element which is arranged below the at least one inlet opening of the shaft element. At least one sludge bucket is preferably arranged under each inlet opening of the shaft body.

In this way, dirt can be collected by means of the sludge bucket elements both with one-sided inflow of water and with two-sided inflow via at least two inlet openings of the shaft body. In the event of an accident, dewatering can also be carried out directly via the sludge bucket.

In a secondary aspect of the invention, a drainage system is provided, in particular for tunnel drainage, with at least one pipe system and a drainage shaft according to the invention, the at least one outlet opening of the drainage shaft being connected to the pipe system, in particular a closed pipe system.

In this sense, a siphon function can be provided between the inlet opening of the shaft body and the closed pipe system of the drainage system, in fluid communication with the outlet opening of the shaft body, using the baffle wall element and the drainage element.

The invention is explained in more detail below with further details with reference to the accompanying schematic drawings using various exemplary embodiments.

• 1 eine perspektivische Ansicht eines Ausführungsbeispiels des erfindungsgemäßen Entwässerungsschachtes;
• 2 eine perspektivische Schnittansicht des Ausführungsbeispiels gemäß 1; und
• 3 eine perspektivische Schnittansicht eines weiteren Ausführungsbeispiels des erfindungsgemäßen Entwässerungsschachtes.

In these show:

• 1 a perspective view of an embodiment of the drainage shaft according to the invention;
• 2 a perspective sectional view of the embodiment according to 1 ; and
• 3 a perspective sectional view of another embodiment of the drainage shaft according to the invention.

1 shows a drainage shaft 1 with a shaft body 10 , the at least one inlet opening 12 and an outlet opening 14 having.

At the outlet opening 14 is a sealing element 16 provided for receiving and expedient connection of a pipe system, in particular a closed pipe system.

Inside the shaft body 10 is a derivative element 40 to the outlet opening 14 appropriately coupled, for the appropriate drainage of water or fluid from the shaft body 10 through the outlet opening 14 ,

On an upper side of the shaft body 10 are according to 1 two inlet openings 60 provided side by side. The inlet openings 60 can be provided as a direct inlet for waste water from a section of road, in particular in the context of tunnel drainage. The inlet openings 60 can be covered with additional gratings or the like for this purpose.

In 2 is a perspective sectional view of the embodiment of FIG 1 shown.

In the shaft body 10 is a baffle element 20th centrally located that a diving board surface 21 trains. Below the baffle element 20th is the derivative element 40 centrally in the shaft body 10 arranged. It is a bilateral drainage of accumulated fluid or water from the shaft body 10 available.

The baffle element 20th is according to 2 designed in one piece. The baffle element 20th has a V-shape and forms a first side end 22 and a second footer 24 out. In particular, the baffle element extends 20th over the entire depth of the shaft body 10 , so that a siphon function within the shaft body 10 is available.

The derivative element 40 is according to 2 with a semicircular or cove-shaped drainage surface 46 educated. In particular, the derivation element 40 can be understood as a haunch, which according to 2 on a jetty 48 in an elevated position, corresponding to the outlet opening 14 of the shaft body 10 , in the shaft body 10 is arranged.

The derivative surface 46 is by a first page margin 43 and a second margin 44 as well as a first longitudinal end 41 and a second longitudinal end 42 limited. The derivative surface 46 forms a lead cross-section that extends from the first longitudinal end 42 towards the second longitudinal end 43 enlarged. In particular, the discharge surface can 46 in the longitudinal direction or along a longitudinal axis X of the derivation element 40 extend funnel-shaped.

The first and second page margins 43 ; 44 as well as the derivation area 46 are inclined to the horizontal. So the drainage surface 46 be funnel-shaped inclined.

The first and second page margins 43 ; 44 can have a lower inclination to the horizontal. In particular, based on the inclination of the first and second page margins 42 ; 43 is an increasing or progressive drainage of fluid from the shaft body 10 available with increasing water level.

Alternatively, the drainage surface 46 , the first page margin 43 and the second margin 44 be formed with an identical inclination to the horizontal.

According to a further alternative, the first and second page margins 43 ; 44 have no inclination or be aligned horizontally, the derivative surface 46 is inclined to the horizontal.

Furthermore, the first and second page margins 42 ; 43 of the derivation element 40 above the first and second page ends 22 ; 24 formed or arranged of the baffle element. Thus, in particular, a siphon function can be provided in the shaft body from a specific, predeterminable water level or water level. By adjusting the arrangement of the page ends 22 ; 24 of the baffle element and the side edges 42 ; 43 of the derivation element 40 , especially with regard to their height in the shaft body 10 , the siphon function can be adjusted or specifically adjusted.

Furthermore, in 2 two inlet openings 12 shown on opposite sides of the shaft body 10 are arranged. Below the inlet openings 12 are recordings 52 provided for a sludge bucket element. So is under each of the inlet openings 12 a sludge bucket element is provided in order to be able to filter out particularly coarse dirt from the incoming water.

In 3 is a perspective sectional view of another embodiment of the drainage shaft according to the invention 1 shown. In particular, the exemplary embodiment gives way to 3 from the embodiment according to 1 in the form of a multi-piece design of the baffle element 20th from.

According to 3 is the baffle element 20th with a baffle frame 26 and at least one wall element 28 educated. The wall element 28 can in the baffle frame 26 be slidably or insertably provided, the wall element 28 a fluid-tight connection to the baffle frame 26 trains.

In this way, the height or the design of the first or second side end 22 ; 24 based on the wall element 28 in connection with the baffle frame 26 adjustable. A diving board surface 21 of the baffle element 20th is by means of the at least one wall element 28 adaptable.

In summary, with the drainage shaft according to the invention 1 or the drainage system according to the invention, an advantageous drainage, for example, of tunnels. There is double-sided drainage in the shaft body 10 of the drainage shaft 1 available. There is also a siphon function inside the shaft body 10 by means of the baffle element 20th and the derivative element 40 adjustable if necessary.

By using the derivative element 40 is preferably cove-shaped or in the form of a cove, drainage can depend on the water level in the shaft body 10 take place in a variable, especially progressive form. In this sense, the drainage shaft according to the invention 1 with increasing water level in the shaft body 10 an increasing drainage rate can be provided.

In addition, based on the baffle element 20th and the derivation element 40 a compact or space-saving and maintenance-friendly design of the drainage shaft 1 available.

Reference list

1

Drainage shaft

10

Manhole body

12th

Inlet opening

14

Outlet opening

16

Sealing element

20th

Baffle element

21

Diving board surface

22

first side end of the baffle element

24

second side end of the baffle element

26

Baffle frame

28

Wall element

40

Derivative element

41

first longitudinal end

42

second longitudinal end

43

first side edge of the derivation element

44

second side edge of the derivation element

46

Derivative surface

48

web

52

Holder for sludge bucket element

60

Inlet opening

X

Longitudinal axis of the derivation element

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included 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.

Patent literature cited

• EP 1582638 A2 [0003]

Claims (9)

Drainage shaft (1), with at least one shaft body (10), which has at least one inlet opening (12) and at least one outlet opening (14), and with at least one baffle element (20), which is arranged in the shaft body (10), characterized that the drainage shaft (1) has at least one drainage element (40) for discharging a fluid from the shaft body (10) via the outlet opening (14), the drainage element (40) in the shaft body (10) below the baffle element (20) is arranged. Drainage shaft (1) after Claim 1 , characterized in that the baffle element (20) has at least a first side end (22), the baffle element (20) being formed in one piece or having a baffle frame (26) and at least one wall element (28) which is in the baffle frame (26) is slidably and / or interchangeably received, so that the first side end of the baffle element (20) is variably adjustable. Drainage shaft (1) after Claim 1 or 2 , characterized in that the drainage element (40) has at least a first side edge (43), the first side end (22) of the baffle element (20) being arranged below the first side edge (43) of the drainage element (40) to provide a siphon function inside the shaft body (10). Drainage shaft (1) according to one of the preceding claims, characterized in that the discharge element (40) has a discharge surface (44) which extends essentially in the direction of a longitudinal axis (X) of the discharge element (40) and with a first longitudinal end (41 ) and a second longitudinal end (42) is provided, the second longitudinal end (42) of the discharge surface (44) being arranged in or on the outlet opening (14) of the shaft element (10) for discharging the fluid from the shaft body (10). Drainage shaft (1) after Claim 4 , characterized in that the lead surface (44) forms a variable lead cross section along the longitudinal axis (X), in particular a lead cross section increasing from the first longitudinal end (41) to the second longitudinal end (42). Drainage shaft (1) after Claim 4 or 5 , characterized in that the discharge surface (44) for receiving and discharging fluid is essentially semicircular, in particular vaulted or angular, preferably box-shaped, V-shaped or polygonal. Drainage shaft (1) one of the Claims 4 to 6 , characterized in that the discharge surface (44) extends along the longitudinal axis (X) of the discharge element (40) between the first and second longitudinal ends (41, 42) and is inclined in the direction of the outlet opening (14) with respect to the horizontal. Drainage shaft (1) according to one of the preceding claims, characterized in that the drainage shaft (1) has at least one sludge bucket element which is arranged below the at least one inlet opening (12) of the shaft element (10). Drainage system, in particular for tunnel drainage, with at least one pipe system and a drainage shaft (1) according to one of the preceding claims, wherein the at least one outlet opening (14) of the drainage shaft (1) is connected to the pipe system, in particular a closed pipe system.

Images