DK2224069T3

DK2224069T3 - Flow Leading haptic.

Info

Publication number: DK2224069T3
Application number: DK10001126.1T
Authority: DK
Inventors: Ludwig Albrecht; Markus Lay; Sven Regelein
Original assignee: Ksb Ag
Priority date: 2009-02-27
Filing date: 2010-02-04
Publication date: 2016-02-29
Also published as: HRP20160148T1; PT2224069E; ES2562154T3; SI2224069T1; HUE026858T2; PL2224069T3; DE202009002780U1; EP2224069B1; EP2224069A1

Description

Fluid guiding mounting system Description

The innovation relates to an apparatus for dewatering having one or more pumps arranged in a collecting vessel with a pressure pipe connected to each pump, a coupling device for the pressure pipe, the pressure pipe at its end that is distant from the pump having a hook-in apparatus and is thereby detachably coupled in operational connection to a check valve fitting, a mounting device for force absorption and force dissipation of the paths fastened thereon being arranged in the collecting vessel.

By way of DE 39 08 092 C2, a waste water collection manhole is known, in which a submersible motor pump with a pressure pipe is arranged, which by means of a coupling is disconnectably connected to a pressure pipe. At approximately half the shaft height, a mounting device with coupling and backflow preventing components is arranged. Such a backflow preventer is also known by way of EP 1 961 962 A2 under the designation coupling foot for a submersible motor pump. It comprises a coupling part for receiving and hooking-in a pressure pipe that is connected to the submersible motor pump and it comprises an integrated check valve. For cleaning purposes, this has to be easily accessible and is provided with a connection for a pressure pipe with a manual shut-off fitting arranged therein. The backflow preventer or coupling foot is expensive to produce and comprises a flushing connection possibility. The assembly of which on a mounting device within the waste water collection shaft and the pressure-tight connection to the following pressure pipe for waste water require care.

By way of DE 44 43 638 Cl another embodiment of such a coupling foot is know, in the unitarily formed housing of which a ball check valve, a flushing connection necessary for this purpose and a flap are installed. This embodiment with two entirely different sealing seats of fittings, a flap and a ball seat, requires a major manufacturing effort and in the case of possible leakages in the region of the sealing seats or the associated closing organs, the entire assembly has to be replaced.

The innovation is based on the object of developing an apparatus of the generic type which with a more cost-effective type of production comprises a substantially simplified assembly and inspection as well as a more favourable design in terms of flow.

The solution of this problem provides that the mounting device is formed as a cross member with at least one flow path arranged therein, that the at least one inlet opening of which is connected to the pressure pipe and that the at least one outlet opening of which is connected to a fitting. This cross member, which is directly configured as a liquid-conducting component, decisively minimizes the assembly effort. The cross member can be produced from any material that is suitable for this application purpose and suitably capable of taking loads and is adequately resistant. In practical tests, plastic components or metal components have proved to be advantageous. For their manufacture, the known casting techniques or other shaping production methods are suitable. The essential advantage of the possible usage of standardized fittings is obtained as a consequence of the moving of the flow conduct in and through the cross member and its design as a pressure-carrying component.

The type of fitting that is arranged at the outlet opening of the cross member can be selected as a function of different embodiments. It can be a manually or drive-operable shut-off fitting. This is dependent on the selected place of installation of a check valve fitting which during a pump disassembly prevents draining of a pressure pipe. Advantageous is the arrangement of a check valve fitting on the outlet opening, as a result of which when decoupling the pump only little liquid flows back into the collecting vessel from the pressure line that is connected to a waste water system. Likewise, a manually actuatable shut-off fitting can also be arranged thereon, which is always installed as well for safety reasons. The check valve fitting is designed as a ball check valve or as a flap check valve. When that surface of the cross member, in which the outlet opening of the flow path is arranged, is produced as a smooth contact surface, a rapid and simple fastening of the check valve fitting is possible thereon.

The configuration, according to which the inlet opening is part of a stationary coupling face of the cross member and is connected to an outlet opening of a mobile coupling face of the hook-in apparatus that is connected to the pressure pipe reduces substantial working effort. Even during the manufacture of the cross member, generating a smooth stationary contact surface, against which the corresponding mating surface of the hook-in apparatus that is connected to the pressure pipe lies in a sealing manner, is possible with simple means. A usual sealing element, for example an O-ring or similar component, brings about an operationally secure sealing of the connection. This is obtained through the pressure force of the pump unit balanced in the centre of gravity and its attachment parts.

According to another configuration, the cross member comprises one or more coupling bars formed edge-like for receiving one or more hook-in apparatuses. These coupling bars are designed as upper and/or lower extension of at least one lateral surface, in particular of the stationary coupling face of the cross member. This can be realized in a casting production process with simple means. The coupling face can simultaneously form a lateral surface of the cross member. For the purpose of improved force absorption of the weight to be absorbed by the cross member, multiple support elements connect the coupling bars to a top and/or bottom of the cross member. The support elements in the form of ribs, blocks, braces and similarly acting forms are arranged on the side facing away of the coupling face having the inlet opening.

In addition, the cross member comprises a guide for the hook-in apparatus. This is formed as a vertical guide and cone-shaped. The guide in this case can be designed as an extension of the coupling bar. Upon a pump assembly, easy positioning of the hook-in apparatus from a pump to be lowered is thus possible. Because of the guide, the mobile coupling face of the hook-in apparatus is brought into an accurately fitting position with respect to the stationary coupling face located on the cross member and the coupling bar.

According to a further configuration, a protruding guide cam each is arranged on both sides and parallel to the guide and between the guide cams, a clearance merging into the stationary coupling face is arranged. Through this configuration, damaging a sealing element arranged in the mobile coupling face of the hook-in apparatus is prevented during the lowering of the unit. Here, the guide cams keep the moveable coupling face spaced from the cross member and the sealing element is contactlessly guided through the clearance located in between. Damage is thus prevented and the sealing element is pressed on in a sealing manner only at the end of a lowering process. The clearance is designed as a sloping surface. The same runs at an acute angle with respect to the stationary coupling face. A fluid delivered by the pump flows through the pressure pipe, through the hook-in apparatus and through the flow path in the cross member to a check valve fitting mounted on the cross member. As a function of the number of pumps arranged on the cross member, a corresponding number of check valve fittings is also mounted.

Another configuration provides in this respect that with multiple check valve fittings connected to the cross member their outlet openings are connected to a vessel-internal or external collection line. This arrangement also provides that the vessel-internal collection line is produced as a T-shaped, U-shaped, Y-shaped, a 2-in-one or x-in-one pipe arrangement design. On such a cross member, multiple pumps can be arranged. This is dependent on the size of such a subterranean pump station. If it is designed as a plastic finished part, one to two pumps are usually arranged therein. In the case of a larger vessel produced in concrete construction for multiple pumps, larger or more cross members for connection to these pumps can also be arranged. The cross members are held in position in the collecting vessels through known means. Thus, a substantial improvement of the assembly and a simple inspection for such a prefabricated pump shaft to be installed underground is obtained.

An exemplary embodiment of the innovation is shown in the drawings and is described in more detail in the following. There

Fig. 1: shows a cross section through such an apparatus, which

Fig. 2 to 5: show views of the hooking-in and mounting device and

Fig. 6: shows a collection line configuration.

Fig. 1 shows in section a collecting vessel 1 with a pump 2 arranged therein. This device is supplied as a prefabricated unit to a place of installation, usually a piece of land with a dewatering device, installed underground and assembled. By way of feed openings 3, a liquid to be disposed of, usually waste water, rain water of the like, is introduced into the collecting vessel 1. On reaching a preset liquid level, the pump 2 is put into operation through a switching device which is not shown here. The pump 2, which in this case is designed as submersible pump unit, sucks directly from the vessel volume and delivers into a pressure pipe 4. The pressure pipe 4 is coupled to a liquid-carrying cross member. This can take place by way of a plugging device or, as shown, with the help of a hook-in apparatus 6. The flow path 7 arranged within the cross member 5 has a check valve fitting 9 in the region of the outlet opening 8, with a shut-off fitting 10 arranged downstream. The shut off fitting 10 is connected to a vessel-internal collection line 11, which opens into a connection 12 of the collecting vessel 1 on the pressure side. Through this design, the device can be supplied as a preassembled unit to a place of installation, lowered into a construction pit there and connected to inlet and outlet pipes. The shut-off fitting 10 in this case can be designed as a ball cock, flap or other known shut-off type and the check valve fitting 9, by means of which a backflow of delivered liquid is prevented with the pump switched off, can be configured as a flap, ball check valve or the like.

Pump 2, pressure pipe 4 and hook-in apparatus 6 are shaped and connected to one another so that the hook-in apparatus 6 coupled to the cross member 5 subject to the simultaneous ensuring of reliable sealing with pump and pressure pipe is directly located in the centre of gravity line of this unit. This facilitates assembly and disassembly of the pump 2 with the pressure pipe 4 arranged thereon and a reliable sealing effect in the region of the parts coupled to one another.

In the state of delivery of the collecting vessel 1, its feed openings 3 are normally closed. These are only opened at the place of installation and the pipelines that are necessary in each case connected to these or therein. Inlet and outlet pipes of the collecting vessel are fastened with known means. In the floor region of the collecting vessel, a connection is prepared on which if required and for an emergency a manual pump for emptying the vessel can be arranged.

Fig. 2 shows an exemplary embodiment of a hook-in apparatus 6. Here, the same is designed as a pipe bend on the one end 13 of which the pressure pipe 4 of the pump 2 is fastened. On the mobile coupling face 14 of the hook-in apparatus 6 an outlet opening 15 with a receptacle 16 for a sealing element to be placed therein is located. In corresponding manner, the sealing element can also be arranged on the stationary mating surface of the cross member. The hook-in apparatus 6 has a guide opening 17, with the help of which when lowering the pump exact allocation of the hook-in apparatus 6 with respect to the place of assembly on the cross member 5 is ensured during the lowering movement. Furthermore, one or two holding claws 18 are attached on the hook-in apparatus 6 in the region of the mobile coupling face 14. The number and position of these is dependent on the arrangement and the course of the flow path 7 within the cross member 5. In the exemplary embodiment, the holding claws 18 are arranged on both sides of the flow path and enclose the same between them.

Fig. 3 shows a perspective representation of a cross member 5 for receiving a pump. In longitudinal direction of the cross member 5, openings 21 for inserting fastening means are provided in the region of its ends 19, 20. With the help of usual connection elements, the cross member is held in its place in the collecting vessel 1. Further openings 22 serve for receiving pipes of level measurement devices and/or energy supply cables.

In the middle part of the cross member 5 is located a volumetrically larger support element 23, within which the flow path 7 for a liquid to be delivered is arranged. On its top 24, the outlet opening 8 of the flow path 7 is located. In the region of the outlet opening 8, which is located in a flat surface, a receptacle 25 for a sealing element and fastening openings 26 for a fitting to be attached thereon are provided. Laterally spaced from the support element 23 arranged in the middle here, two further thin-walled support elements 27 each are located on both sides, with the help of which a force-transmitting connection of a coupling bar 28 running in longitudinal direction of the cross member 5 and designed edge-like is established. The holding claws 18 of the hook-in apparatus 6 grip by way of the coupling bar 28, by way of the hooking-in of which a reliable suspension of the pump is ensured. On the cross member 5, in this case on the middle support element 23, a guide 29 is arranged, which is configured pick-shaped and serves as a vertical guide during a hooking-in process.

Fig. 4 with respect to the view corresponds to the cross member according to Fig. 3. In contrast with this, two larger support elements 23 with integrated flow paths 7 are provided here, and merely a total of three thin-walled support elements 27 arranged in a distributed manner. Through this design, a total of two pumps with their hook-in apparatuses can be arranged on this cross member 5.

Fig. 5 shows a front view of the cross member according to Fig. 4. The smooth-surface lateral surface of the cross member 5 formed flat in this case simultaneously forms the stationary coupling face 30. The inlet openings 31 of the two flow paths 7 are noticeable therein. At the ends 19, 20 of the cross member, support surfaces 32 are present, by way of which it is held in its place of installation within the collecting vessel in a force-transmitting manner. Between the support surfaces of the cross member, the lateral surface or stationary coupling face 30 comprises an extension 33 which protrudes downwards over the cross member bottom. The same serves for improving the stiffness of the cross member and the better force absorption and force transmission by the cross member. The flow path or flow paths 7 can also be designed as part of a separate component that is integrated in the cross member 5. Accordingly, a flow path 7 can be formed as a tubular element and consist of a different material. For example, a steel or ceramic element, which during the production is cast into the cross member or otherwise worked into the same. This can be advantageous in the delivering of abrasive or corrosive fluids.

On both sides of and parallel to the guide 29, a protruding guide cam 36 each is arranged, while between the guide cams 36 a clearance 37 merging into the stationary coupling face 30 is arranged. Through this configuration, damaging a sealing element which is arranged in the mobile coupling face 14 of the hook-in apparatus 6 is prevented during the lowering of the unit to be assembled. Here, the guide cams 36 hold the moveable coupling face 14 spaced with respect to the cross member 5. The sealing element to be arranged in a receptacle 16 is contactlessly passed through the clearance 37 during the lowering process. Damaging it is thus prevented and the sealing element is pressed on in a sealing manner only at the end of a lowering process. The clearance 37 is designed as a sloping surface, which runs at an acute angle with respect to the stationary coupling face 30. The top of the guide cam 36 protrudes over the upper edge of the coupling bar or coupling bars 28. In an assembled state, the guide cams 36 are arranged between the holding claws 18.

Fig. 6 shows a view of a cross member 5 with check valve fittings 9 assembled thereon. These are configured as ball check valves with balls that are moveable in vertical direction and thus are under the influence of gravity. The outlet openings 34 of the two check valve fittings 9 in this case face one another and are connected to one another by way of a T-shaped collection line 35. This collection line 35 comprises a middle branch, on which an additional shut-off fitting 10 is arranged.

Starting out from this, a vessel-internal collection line 11 leads to the connection 12 of the collecting vessel 1 on the pressure side.

Claims

A drainage device with one or more pumps (2) arranged in a collection vessel, with a pressure tube connected to each pump and a coupling device for each pressure tube (4), the pressure tube at its pump-removing end comprising a suspension device (6) and thus detachably connected in an operative connection to a recoil fixture (9), wherein a holding device for receiving and dispensing power from the attached parts is arranged in the collecting container, characterized in that the holding device is designed as a traverse (5) with at least one flow path ( 7) such that its at least one inlet opening (31) is connected to the pressure tube (4) and that its at least one outlet opening (8) is connected to a luminaire (9).

Device according to claim 1, characterized in that the luminaire (9) is a non-return luminaire (9).

Device according to claim 2, characterized in that the non-return valve is designed as a ball check valve or a counter flap.

Device according to claim 1, 2 or 3, characterized in that the inlet opening (31) is part of a stationary coupling surface (30) of the traverse (5) and is connected to an outlet opening (15) of a mobile coupling surface (14). of the suspension device (6) connected to the pressure tube (4).

Device according to any one of claims 1 to 4, characterized in that the traverse (5) comprises one or more cut-like shaped coupling strips (28) for receiving one or more suspension devices (6).

Device according to claim 5, characterized in that the coupling strip (28) is formed as an upper and / or lower extension of at least one side surface, preferably the stationary coupling surface (30), of the traverse (5).

Device according to claim 5 or 6, characterized in that a plurality of supporting elements (23, 27) connect an upper and / or underside of the traverse (5) to the coupling strip (28).

Device according to one of claims 1 to 7, characterized in that the traverse (5) comprises a guide element (29) for the suspension device (6).

Device according to claim 8, characterized in that the guide element (29) is formed as a vertical guide element and is tab-shaped.

Device according to any one of claims 1 to 9, characterized in that the guide element (29) is formed as an extension of the coupling strip (28).

Device according to any one of claims 1 to 10, characterized in that projecting guide cams (36) are arranged on both sides of and parallel to the guide element (29) and that a through clearance (37) is arranged between the cams. ) in the stationary connector (30).

Device according to claim 11, characterized in that the clearance (37) is an inclined surface.

Device according to any one of claims 1 to 12, characterized in that when several recoil fixtures (9) are tightly connected to the traverse (5), their exit openings (34) are connected to a container internal or container external connecting line (11). , 35).

Device according to claim 13, characterized in that the container inner connecting line (11, 35) is manufactured as a T-shaped, U-shaped, Y-shaped, as a 2-in-1 or as an Xi-1. piping device.

Device according to one or more of claims 1 to 14, characterized in that the stationary coupling surface (30) comprises an extension (33) extending downwards and beyond the underside of the traverse.

Device according to claim 15, characterized in that the extension (33) is arranged between the abutment surfaces (32) of the traverse (5).

Device according to any one of claims 1 to 16, characterized in that apertures (22) for receiving conductors for level measuring devices and / or power supply cables are arranged in the traverse (5).

Device according to any one of claims 1 to 17, characterized in that the flow path (7) is part of an integral component of the traverse (5).