Shaft assembly
The shaft arrangement addresses the high costs and complexity of renovating old sewer shaft systems by using an adapter assembly for a sealing connection, allowing for efficient and cost-effective rehabilitation without removing existing components.
Patent Information
- Application Number
- EP2024214164
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-12-14
- Filing Date
- 2024-11-20
- Publication Date
- 2025-06-18
AI Technical Summary
Existing methods for renovating old shaft systems in sewer systems are costly, time-consuming, and require complex processing, including the removal of old shaft components and the renovation of intact shaft floors.
A shaft arrangement that uses an adapter assembly to create a sealing connection between the old shaft system and a new shaft system, allowing for rehabilitation without removing existing components and retaining the old shaft floor, thus reducing costs and complexity.
Enables economical and cost-effective rehabilitation of old shaft systems by avoiding the complex removal of old components and allowing for quick, tight connections, while maintaining the integrity of the existing shaft floor.
Smart Images

Figure IMGAF001_ABST
Abstract
Description
[0001] The invention relates to a shaft arrangement for an old shaft system of a system for receiving, conveying and storing a fluid with the features of the preamble of claim 1.
[0002] Such shaft arrangements for old shaft systems are known from the state of the art.
[0003] In many cities and municipalities, the existing, sometimes very old sewer systems have to be renewed or renovated over time.
[0004] In particular, the shafts, which are generally made of mineral materials such as concrete and which provide the necessary access to the sewer system, require regular renewal or renovation.
[0005] Due to the very long use of the sometimes very old materials, significant corrosion occurs, particularly inside the shafts, which no longer ensures the continued safe operation of these shafts.
[0006] Over time, various technical procedures for the renewal or renovation of such shafts have been established.
[0007] For example, DE19643175 A1 describes a process for rehabilitating shafts in water supply and disposal pipelines, as well as in transport lines for chemicals, fuels, heat, or cooling. The plan is to remove the shaft to be rehabilitated to the height at which a constant cross-section begins. This shaft and the shaft floor are then lined with a new shaft insert. For this purpose, any existing surface reinforcement, such as the road surface, including the shaft cover, is removed.
[0008] Any compensation rings are also removed, as is the shaft neck, also known as the cone. A thin-walled shaft liner with an attached channel profile is lowered into the now cleaned old shaft and secured at the correct height.
[0009] Before the cavity or annular gap can be filled, the pipe connections of the inlet and outlet lines must be made and sealed.
[0010] The manhole liner is preferably made of glass-fiber-reinforced plastic. Cement mortar is generally filled into the annular gap between the new manhole liner and the old manhole to ensure the stability and strength of this new manhole arrangement.
[0011] The disadvantage of these processes is that the time, assembly and material costs are very high.
[0012] Another disadvantage is that removing the old shaft down to the shaft ring with a constant cross-section is very time-consuming and requires a lot of material.
[0013] Another disadvantage is that the new shaft liner with the attached channel profile has to be designed, manufactured and installed with great effort, since each old shaft has different geometries and, in particular, different channel profiles.
[0014] Another method for rehabilitating old shaft systems is the so-called shaft-in-shaft rehabilitation (SIS).
[0015] In this case, a corroded old shaft system, for example made of concrete or plastic, is renovated by inserting a new shaft system, particularly made of plastic, into the old shaft system and sealing it with it.
[0016] A disadvantage of such shaft-in-shaft renovations is that in addition to the individual shaft rings, the shaft floor is also renovated, even if it is still intact.
[0017] This is where the invention comes in, which has set itself the task of providing a shaft arrangement for an old shaft system of a system for receiving, conducting and storing a fluid, which overcomes the disadvantages of the prior art, which can be manufactured economically and cost-effectively, which avoids the complex removal of existing old shaft components and which can be used optimally for currently existing old shaft systems to be renovated, made of all materials, geometries and dimensions, and in particular also for old shaft systems with relatively high ovality or deformation, without having to renovate the existing shaft floor.
[0018] Surprisingly, it has been found that a shaft arrangement for an old shaft system of a system for receiving, conducting and storing a fluid, wherein the old shaft system has at least one old shaft lower part with at least one old shaft floor, as well as at least one old shaft wall enclosing the old shaft floor, wherein the old shaft lower part has at least one channel which is connected to at least one old shaft wall, is characterized in that the
[0019] The old shaft base of the old shaft system is spaced apart by at least one adapter assembly of a new shaft system, such that the at least one adapter assembly is in sealing connection with the old shaft base and / or with at least one old shaft base and / or with at least one old shaft wall of the old shaft base. This shaft assembly now makes it possible to rehabilitate old shafts without requiring additional, complex processing of the shaft base.
[0020] It is now possible to carry out so-called shaft-in-shaft renovations economically and cost-effectively by customising this shaft arrangement, which is scaled to suit each existing shaft system before assembly.
[0021] Another advantage of the new shaft arrangement is that the complex removal of existing old shaft components is no longer necessary.
[0022] Another advantage of the shaft arrangement is that the existing old shaft system does not have to be completely removed and that, in particular, the existing old shaft floor of the lower part of the old shaft is retained for renovation with a new shaft system.
[0023] The shaft arrangement is further characterized in that the old shaft base of the old shaft system is arranged at a distance via at least one adapter arrangement from at least one shaft middle section and / or at least one shaft upper section and / or at least one shaft lower section of a new shaft system, which have at least one sealing, pluggable, and / or latchable connection. This not only enables the economical and cost-effective rehabilitation of old shaft systems, but also makes it possible to create a quick and tight connection between the old shaft system and the new shaft system at any time.
[0024] Furthermore, the shaft arrangement is designed such that the at least one adapter arrangement is arranged at a distance from at least one old shaft wall of the old shaft base via at least one sealing device. The function and design of the adapter arrangement of the new shaft arrangement are advantageously always designed such that the existing, refurbished old shaft base can be integrated into the new shaft system.
[0025] A further advantage of the shaft arrangement is that the at least one adapter arrangement is sealingly connected to at least one old shaft wall of the old shaft system via at least one sealing device.
[0026] Another advantage of the shaft arrangement is that the at least one adapter assembly of the shaft arrangement is operatively connected to at least one old shaft floor and / or to at least one old shaft wall of the old shaft lower section, forming a seal. Based on the universal, individual geometry and design of the adapter assembly of the shaft arrangement, it is thus possible to rehabilitate the existing old shaft system anywhere, at any time, cost-effectively and economically, while ensuring sealing in all areas.
[0027] The shaft assembly is further configured such that the at least one adapter assembly is arranged at a distance from at least one old shaft floor and / or at least one old shaft wall of the old shaft lower section via at least one sealing device. Advantageously, the adapter assembly of the shaft assembly can thus be adapted to the geometric requirements and conditions of virtually any old shaft system without affecting its installation in the old shaft system, and in particular, the required tightness of the old shaft system rehabilitated by a new shaft system can be ensured.
[0028] Furthermore, the shaft assembly is designed such that the at least one adapter assembly has at least one receiving element and / or one receptacle. This ensures that the shaft assembly can always be brought to an old shaft system to be rehabilitated in a prefabricated and configured manner.
[0029] The shaft assembly is also designed such that the at least one adapter assembly has at least one sealing device. This advantageously provides a shaft assembly that can be individually adapted to the specific geometry of existing shaft systems, both in height and diameter.
[0030] The shaft assembly is further configured such that the at least one adapter assembly has at least one receptacle for at least one first sealing device on its outer side and / or inner side. This advantageously provides a shaft assembly that can be individually adapted to the specific geometry of existing shaft systems, both in height and diameter.
[0031] The shaft arrangement is advantageously designed such that the at least one adapter arrangement is sealingly connected to at least one old shaft wall of the old shaft system via at least one third sealing device.
[0032] Furthermore, this shaft assembly is designed so that the shaft base of the new shaft system is operatively connected to the receiving element of the adapter assembly. The advantage here is that a shaft assembly is available that can be individually adapted to the specific geometry of existing shaft systems, both in height and diameter.
[0033] Another advantage of this shaft arrangement is that the shaft base of the new shaft system is operatively connected to the adapter assembly via at least one first sealing device. This surprisingly makes it possible to create a sealed connection between the old shaft system to be renovated and the new shaft system.
[0034] It has been found to be advantageous in the shaft arrangement that the at least one sealing device is designed as a sealing strip, as a wedge seal, as a round seal, as an activatable seal such as a swelling seal, a swellable seal, an inflatable seal and the like.
[0035] Advantageously, the at least one sealing device of the shaft arrangement consists of or contains an elastomeric polymer material. For this purpose, a selection can be made from rubber, styrene butadiene rubber (SBR), ethylene propylene diene rubber (EPDM), nitrile butadiene rubber (NBR), and thermoplastic elastomer (TPE) for the production of the sealing device.
[0036] Another advantage of the shaft arrangement is that the old shaft system is spaced from the new shaft system by at least an annular gap. This allows the shaft arrangement to be quickly and easily installed and installed into an existing old shaft system.
[0037] It has proven advantageous for the shaft arrangement that the annular gap between the old shaft system and the new shaft system is at least partially filled with backfill material. This advantageously creates and improves the stability of the new shaft system, which is connected to the old shaft system. Furthermore, the sealing of the connection points between the old shaft system and the new shaft system can be implemented economically and cost-effectively.
[0038] A further advantage of the shaft arrangement is that the adapter arrangement and / or the shaft middle part and / or the shaft upper part and / or the shaft lower part contains a polymer material or consists of a polymer material, wherein the polymer material is preferably a thermoplastic, particularly preferably a polyolefin, such as a polypropylene or a polyethylene or a polybutylene or a copolymer of the aforementioned, or a polyvinyl chloride, or consists of such.
[0039] The shaft arrangement can therefore be manufactured economically and cost-effectively, is easy to install, lightweight and corrosion-resistant.
[0040] It is also advantageous that the polymer material, preferably a thermoplastic, contains fillers and / or reinforcing materials in a proportion of 1 to 45% by weight, preferably 1 to 30% by weight, particularly preferably 5 to 25% by weight, based on the total weight.
[0041] The fillers and / or reinforcing materials are particulate and / or spherulitic and / or fibrous and / or platelet-shaped and / or spherical and / or rod-shaped.
[0042] The filler and / or reinforcing material is preferably selected from talc, chalk, kaolin, wollastonite, mica, glass fibers, glass spheres, hollow glass spheres, metal particles, metal powder, metal fibers, graphite, conductive carbon black, wood flour, wood fibers, bamboo flour, bamboo fibers, aluminum oxide, aluminum silicate, or a mixture of the aforementioned.
[0043] Fibrous fillers and / or reinforcing materials are also preferred, particularly glass and / or carbon fibers. This advantageously results in high strength and rigidity of the shaft arrangement as well as more economical and cost-effective production.
[0044] The adapter assembly and / or the shaft middle part and / or the shaft upper part and / or the shaft lower part of the shaft assembly of the present invention can be manufactured in a polymer molding process, such as an injection molding process or a rotational molding process or a rotational sintering process or a pressing process or a deep drawing process or an extrusion blow molding process or an additive manufacturing process, such as a 3D printing process, or a combination of the processes listed above.
[0045] The above-mentioned processes are suitable for producing the above-mentioned components according to the present invention in large quantities in a reproducible, dimensionally accurate and cost-effective manner.
[0046] This provides adapter assemblies and / or manhole middle sections and / or manhole tops and / or manhole bottoms that are extremely durable and strong and meet the requirements of the customers or the requirements of the relevant specifications for their application.
[0047] Furthermore, it has proven extremely advantageous if adapter assemblies and / or shaft middle sections and / or shaft upper sections and / or shaft lower sections are manufactured using machining processes such as milling or turning. This allows for the realization of customized geometries such as diameters, heights, and the like, so that a geometrically precise new shaft system can be provided cost-effectively and economically for each existing shaft system requiring rehabilitation.
[0048] Within the scope of the present invention, it may further prove very practical if it is provided that the adapter arrangement and / or the shaft middle section and / or the shaft upper section and / or the shaft lower section are manufactured using an additive manufacturing process, such as a 3D printing process. Such a process is suitable for producing an installation insert and / or a connecting piece and / or a fixing means according to the present invention in large quantities in a reproducible, dimensionally accurate and cost-effective manner. In particular, it can be provided that the installation insert and / or the connecting piece and / or the fixing means are manufactured entirely or partially using a generative manufacturing process, for example by a 3D printing process. For this purpose, a three-dimensional model readable by a data processing machine can advantageously be used for production.The invention also encompasses a method for generating a three-dimensional model readable by a data processing machine for use in a manufacturing method for an installation insert and / or a connecting piece and / or a fastening means. In particular, the method also encompasses the input of data representing an installation insert and / or a connecting piece and / or a fastening means into a data processing machine and the use of the data to represent an installation insert and / or a connecting piece and / or a fastening means as a three-dimensional model, wherein the three-dimensional model is suitable for use in the manufacture of an installation insert and / or a connecting piece and / or a fastening means.The method also includes a technique in which the input data of one or more 3D scanners, which operate either contact-based or contactless, with the latter delivering energy to an installation insert and / or a connecting piece and / or a securing means and receiving the reflected energy, is used to generate a virtual three-dimensional model of an installation insert and / or a connecting piece and / or a securing means using computer-aided design software. The manufacturing method can comprise a generative powder bed process, in particular selective laser melting (SLM), selective laser sintering (SLS), selective heat sintering (SHS), selective electron beam melting (EBM / Electron Beam Additive Manufacturing - EBAM) or solidification of powder material using a binder (binder jetting).The manufacturing process may comprise a generative free-space process, in particular deposition welding, wax deposition modeling (WDM), contour crafting, metal powder deposition (MPA), plastic powder deposition, cold gas spraying, electron beam welding (EBW), or melt layering processes such as fused deposition modeling (FDM) or fused filament fabrication (FFF). The manufacturing process may comprise a generative liquid material process, in particular stereolithography (SLA), digital light processing (DLP), multi-jet modeling (MJM), polyjet modeling, or liquid composite molding (LCM). Furthermore, the manufacturing process may comprise other generative layering processes, in particular laminated object modeling (LOM), 3D screen printing, or light-controlled electrophoretic deposition.
[0049] The invention further relates to a system for receiving, conducting and storing a fluid with at least one shaft arrangement according to the previous embodiments.
[0050] Further important features and advantages of the invention emerge from the subclaims, from the figures and from the associated description of the figures.
[0051] It is understood that the features mentioned above and those to be explained below can be used not only in the combination specified in each case, but also in other combinations or on their own, without departing from the scope of the present invention.
[0052] A preferred embodiment of the invention is illustrated in the figures and is explained in more detail in the following description.
[0053] They show: Fig. 1 Schematic, side-sectional view of a shaft arrangement with an old shaft system and a new shaft system Fig. 2 Schematic, side-sectional detailed view of a shaft arrangement with an old shaft system and a new shaft system Fig. 3 Perspective view of an adapter arrangement of the shaft arrangement
[0054] In the Fig. 1 a schematic, side-sectional view of a shaft arrangement 1 with an old shaft system 10 and a new shaft system 20 is shown.
[0055] The shaft arrangement 1 for an old shaft system 10 of a system for receiving, conducting and storing a fluid, wherein the old shaft system 10 has at least one old shaft lower part 11 with at least one old shaft bottom 12, as well as at least one old shaft wall 13 enclosing the old shaft bottom 12, wherein the old shaft lower part 11 has at least one channel 110 which is connected to at least one old shaft wall 13, is characterized in that the old shaft bottom 12 of the old shaft system 10 is arranged at a distance via at least one adapter arrangement 30 of a new shaft system 20, that the at least one adapter arrangement 30 is in operative sealing connection with the old shaft lower part 11 and / or with at least one old shaft bottom 12 and / or with at least one old shaft wall 13 of the old shaft lower part 11.
[0056] The shaft arrangement 1 for an old shaft system 10 of a system for receiving, conducting and storing a fluid, wherein the old shaft system 10 has at least one old shaft lower part 11 with at least one old shaft base 12, as well as at least one old shaft wall 13 enclosing the old shaft base 12, wherein the old shaft lower part 11 has at least one channel 110 that is connected to at least one old shaft wall 13, is characterized in that the old shaft base 12 of the old shaft system 10 is arranged at a distance via at least one adapter arrangement 30 from at least one shaft middle part 40 and / or at least one shaft upper part 50 and / or at least one shaft lower part 60 of a new shaft system 20, which have at least one sealing, plug-in and / or latchable connection.
[0057] In this exemplary embodiment, only the lower part 11 of the old shaft and the middle parts 14, 14', 14" of the old shaft system 10 are shown schematically. The lower part 11 of the old shaft has an old shaft bottom 12.
[0058] The old shaft floor 12 of the old shaft system 10 is surrounded by an old shaft wall 13.
[0059] In this embodiment, a channel 110 is shown in the center of the old shaft floor 13. The old shaft floor 13 of the old shaft lower section 11 is designed such that it has a gradient starting from the old shaft wall 13, which flows into the centrally arranged, open channel 110.
[0060] The shaft arrangement 1 is designed such that at least one adapter arrangement 30 is sealingly connected to the old shaft base part 11.
[0061] Furthermore, the shaft arrangement 1 is designed such that the at least one adapter arrangement 30 is in sealing connection with at least one old shaft base 12 and / or with at least one old shaft wall 13 of the old shaft lower part 11.
[0062] In this exemplary embodiment, the shaft arrangement 1 is designed such that the at least one adapter arrangement 30 is arranged at a distance from at least one old shaft wall 13 of the old shaft lower part 11 via at least one first sealing device 5. However, it is also within the scope of the invention for the at least one adapter arrangement 30 to be arranged at a distance from at least one old shaft floor 12 of the old shaft lower part 11 via at least one sealing device 5, 6.
[0063] The shaft arrangement 1 is further designed such that the at least one adapter arrangement 30 in this embodiment has at least one receptacle 34 for at least one third sealing device 7 on its inner side 32.
[0064] Furthermore, the shaft arrangement 1 is designed such that the at least one sealing device 5, 6, 7, 8 is designed as a sealing strip, as a wedge seal, as a round seal, as an activatable seal such as a swelling seal, a swellable seal, an inflatable seal and the like.
[0065] In this embodiment, the first sealing device 5 is designed as an L-shaped seal in cross section.
[0066] Advantageously, the at least one sealing device 5, 6, 7, 8 of the shaft arrangement 1 consists of or contains an elastomeric polymer material.
[0067] For this purpose, a selection of rubber, styrene butadiene rubber (SBR), ethylene propylene diene rubber (EPDM), nitrile butadiene rubber (NBR), thermoplastic elastomer (TPE) can be made for the production of the sealing device.
[0068] In this exemplary embodiment, for example, the first sealing device 5 of the shaft arrangement 1 consists of ethylene propylene diene rubber (EPDM). The new shaft system 20 has at least one adapter arrangement 30, at least one shaft middle part 40 and at least one shaft upper part 50 and at least one shaft lower part 60.
[0069] In this embodiment, the shaft arrangement 1 is designed such that the new shaft system 20 has an adapter arrangement 30, a shaft lower part 60, two shaft middle parts 40, 40' and a shaft upper part 50.
[0070] The old shaft system 10 is arranged at a distance from the new shaft system 20 via at least one annular gap 3.
[0071] In this embodiment, the annular gap 3 between the old shaft system 10 and the new shaft system 20 is filled with a filling material 4 above the first sealing device 5 of the shaft arrangement 1.
[0072] The shaft arrangement 1 is designed such that the adapter arrangement 30 and / or the shaft middle part 40, 40' and / or the shaft upper part 50 and / or the shaft lower part 60 contains a polymer material or consists of a polymer material, wherein the polymer material is preferably a thermoplastic, particularly preferably a polyolefin, such as a polypropylene or a polyethylene or a polybutylene or a copolymer of the aforementioned, or a polyvinyl chloride, or consists of such.
[0073] In this embodiment, the shaft arrangement 1 is designed such that the adapter arrangement 30, the shaft lower part 60, the shaft middle part 40, 40', the shaft upper part 50 are made of the polymer material polypropylene.
[0074] However, it is also within the scope of the invention that the material of the shaft arrangement 1 preferably comprises and / or consists of at least partially a recycled thermoplastic.
[0075] The polymer material used / applied in the manufacture of the shaft assembly 1, preferably a thermoplastic, comprises fillers and / or reinforcing materials of approximately 1 to 45 wt.%, preferably 1 to 30 wt.%, particularly preferably 5 to 25 wt.%, based on the total weight. In this exemplary embodiment, the thermoplastic is a polyolefin, preferably a polypropylene (PP) with approximately 20 wt.%, based on the total weight, of glass fibers.
[0076] In the Figure 2a schematic, side-sectional detailed view of a shaft arrangement 1 with an old shaft system 10 and a new shaft system 10 is shown.
[0077] The shaft arrangement 1 for an old shaft system 10 of a system for receiving, conducting and storing a fluid, wherein the old shaft system 10 has at least one old shaft lower part 11 with at least one old shaft floor 12, as well as at least one old shaft wall 13 enclosing the old shaft floor 12, wherein the old shaft lower part 11 has at least one channel 14 which is connected to at least one old shaft wall 13, is characterized in that the old shaft floor 12 of the old shaft system 10 is arranged at a distance from at least one adapter arrangement 30 of a new shaft system 20, that the at least one adapter arrangement 30 is in operative sealing connection with the old shaft lower part 11 and / or with at least one old shaft floor 12 and / or with at least one old shaft wall 13 of the old shaft lower part 11.
[0078] Furthermore, the shaft arrangement 1 is designed such that the at least one adapter arrangement 30 is arranged at a distance from at least one old shaft wall 13 of the old shaft lower part 11 via at least one sealing device 5, 6, 8.
[0079] Advantageously, the shaft arrangement 1 is further designed such that the at least one adapter arrangement 30 is sealingly connected to at least one old shaft wall 13 of the old shaft system 10 via at least one sealing device 5, 6, 8.
[0080] In this exemplary embodiment, the shaft arrangement 1 is designed such that the at least one adapter arrangement 30 is sealingly connected to at least one old shaft wall 13 of the old shaft system 10 via at least one first sealing device 5.
[0081] The old shaft bottom 12 of the old shaft system 10 is untreated.
[0082] A channel 110 is arranged centrally in the old shaft bottom 12, with the old shaft bottom 12 running diagonally from the old shaft wall 13 to the channel 110.
[0083] An adapter arrangement 30 is arranged on the old shaft floor 12.
[0084] The adapter arrangement 30 is designed such that it has at least one receiving element 35 and / or at least one receptacle 34.
[0085] In this embodiment, the adapter arrangement 30 is designed such that it has a receptacle 34 on its inner side 32, designed as a circumferential annular gap.
[0086] The adapter arrangement 30 is further designed such that it has on its inner side 32 a receiving element 35 designed as a circumferential web.
[0087] In this exemplary embodiment, the third sealing device 7 is arranged in the receptacle 34 of the adapter assembly 30. The adapter assembly 30 is thus operatively connected to the shaft base 60 of the new shaft system 20 via the third sealing device 7.
[0088] The shaft arrangement 1 is further designed such that the adapter arrangement 30 is in operative connection with at least one old shaft wall 13 of the old shaft system 10 via at least one sealing device 5, 6, 8.
[0089] In this embodiment, the shaft arrangement 1 is designed such that the adapter arrangement 30 is sealingly connected to the old shaft wall 13 of the old shaft system 10 via a first sealing device 5 and a fourth sealing device 8.
[0090] Furthermore, the shaft assembly 1 is designed such that at least one second sealing device 6 is arranged at the lower, free end of the shaft base 60 of the new shaft system 10. In this exemplary embodiment, the adapter assembly 30 is operatively connected to the shaft base 60 of the new shaft system 20 via the second sealing device 6.
[0091] Furthermore, the shaft arrangement 1 is designed such that the at least one sealing device 5, 6, 7, 8 is designed as a sealing strip, as a wedge seal, as a round seal, as an activatable seal such as a swelling seal, a swellable seal, an inflatable seal and the like.
[0092] In this embodiment, the first sealing device 5 is designed as a seal with an L-shaped cross section.
[0093] In this embodiment, the second sealing device 6 is designed as a swelling seal with a prismatic cross-section.
[0094] In this embodiment, the third sealing device 7 is designed as a wedge seal. The fourth sealing device 8 is designed as a swellable / swellable seal in this embodiment.
[0095] Advantageously, the at least one sealing device 5, 6, 7, 8 of the shaft arrangement 1 consists of or contains an elastomeric polymer material.
[0096] For this purpose, a selection of rubber, styrene butadiene rubber (SBR), ethylene propylene diene rubber (EPDM), nitrile butadiene rubber (NBR), thermoplastic elastomer (TPE) can be made for the production of the sealing device.
[0097] In this embodiment, for example, the first sealing device 5 of the shaft arrangement 1 consists of styrene-butadiene rubber (SBR).
[0098] The second sealing device 6 consists of a swellable material based on thermoplastic elastomer (TPE).
[0099] In this embodiment, the third sealing device 7 consists of ethylene propylene diene rubber (EPDM).
[0100] In this embodiment, the fourth sealing device 8 consists of at least one swellable paste based on polyurethane (PUR).
[0101] The old shaft system 10 is arranged at a distance from the new shaft system 20 via at least one annular gap 3.
[0102] In this exemplary embodiment, the annular gap 3 between the old shaft system 10 and the new shaft system 20 is filled with a backfill material 4 above the first sealing device 5 of the shaft arrangement 1. However, it is also within the scope of the invention for the annular gap 3 between the old shaft system 10 and the new shaft system 20 to be filled with a backfill material 4 below the first sealing device 5 of the shaft arrangement 1.
[0103] The following describes how the old shaft system 10 is renovated using a new shaft system 20 in individual steps: The adapter assembly 30 is placed on the cleaned old shaft floor 13 of the old shaft system 10.
[0104] In the next step, the position, height, and fit of the adapter assembly 30 are checked. The adapter assembly 30 should be positioned as centrally as possible on the old shaft floor 13.
[0105] The third sealing device 7 is already pre-assembled in the adapter arrangement 30.
[0106] In this embodiment, the third sealing device 7 is fixed in the receptacle 34 via an adhesive system.
[0107] In a next step, the first sealing device 5 is arranged or positioned on the upper side 33 of the adapter arrangement 30 and on the old shaft wall 13 of the old shaft system 10.
[0108] In a next step, the first sealing device 5, which is approximately L-shaped in cross section and designed as a roll, is adapted to the old manhole base 11 in such a way that the free ends of the first sealing device 5 overlap by a certain amount.
[0109] In a further step, the cleaned, first sealing device 5 is fixed into a circular ring using a fast-curing special adhesive.
[0110] In a next step, a fixing agent, for example a two-component adhesive, is applied to the old shaft wall 13 of the old shaft system 10 opposite the adapter arrangement 30.
[0111] In a next step, the first sealing device 5 is arranged or pressed onto this two-component adhesive.
[0112] In a next step, a fixing agent, for example a two-component adhesive, is applied to the upper side 33 of the adapter arrangement 30 below the first sealing device 5.
[0113] In a further step, the first sealing device 5 is now fixed on the upper side 33 of the adapter arrangement 30.
[0114] In a next step, the fourth sealing device 8 is attached above the first sealing device 5 to the old shaft wall 13 of the old shaft system 10.
[0115] In a further step, the second sealing device 6 is now attached / positioned at the lower, free end of the shaft base 60 of the new shaft system 20.
[0116] In the next step, the shaft base 60 of the new shaft system 20 is inserted into the adapter arrangement 30 such that the lower free end of the shaft base 60 is arranged on the receiving element 35 of the adapter arrangement 30.
[0117] In a further step, the annular space 3 between the old shaft system 10 and the new shaft system 20 above the first sealing device 5 is filled with a first backfill material 4 up to approximately the middle of the old shaft middle section 14.
[0118] In a further step, the annular space 3 between the old shaft middle sections 14, 14', 14" and the new shaft system 20 can now be completely filled with another backfill material 4.
[0119] The shaft arrangement 1 is designed such that the adapter arrangement 30 and the shaft base 60 contain a polymer material or consist of a polymer material, wherein the polymer material is preferably a thermoplastic, particularly preferably a polyolefin, such as a polypropylene or a polyethylene or a polybutylene or a copolymer of the aforementioned, or a polyvinyl chloride, or consists of such.
[0120] The polymer material used / applied in the manufacture of the shaft assembly 1, preferably a thermoplastic, comprises fillers and / or reinforcing materials of approximately 1 to 45 wt. %, preferably 1 to 30 wt. %, particularly preferably 5 to 25 wt. %, based on the total weight. In this exemplary embodiment, the shaft assembly 1 is designed such that the adapter assembly 30 and the shaft base 60 are made of a thermoplastic, a polyolefin, preferably a polypropylene (PP) with approximately 25 wt. %, based on the total weight, of glass fibers.
[0121] In the Fig. 3 a perspective view of an adapter arrangement 30 of the shaft arrangement 1 is shown.
[0122] The adapter assembly 30 of the shaft assembly 1 is configured such that it has at least one receptacle 34 on its outer side 31 and / or on its inner side 32, which is configured, for example, as an annular groove. In this exemplary embodiment, the adapter assembly 30 of the shaft assembly 1 is configured such that it has at least one receptacle 34 on its inner side 32, arranged at a distance from the upper side 33.
[0123] Furthermore, the adapter arrangement 30 of the shaft arrangement 1 is designed such that it has at least one receiving element 35 on its outer side 31 and / or on its inner side 32, which is designed, for example, as a circumferential web.
[0124] In this embodiment, the adapter arrangement 30 of the shaft arrangement 1 is designed such that it has on its inner side 32 at least one receiving element 35 arranged at a distance from the upper side 33.
[0125] Due to the geometry, in particular the diameter, the height and the depth of the receptacle 34 and / or the diameter, the width, the thickness, as well as the positions on the inner side 32 and / or on the outer side 31 of the receptacle element 35, an adapter arrangement 30 of the shaft arrangement 1 can be provided, which can be adapted to all existing geometries of old shaft systems 10 to be renovated, manufactured economically and cost-effectively, and installed quickly, simply and with ease of assembly.
Claims
1. Shaft arrangement (1) for an old shaft system (10) of a system for receiving, conducting and storing a fluid, wherein the old shaft system (10) has at least one old shaft lower part (11) with at least one old shaft floor (12), and at least one old shaft wall (13) enclosing the old shaft floor (12), wherein the old shaft lower part (11) has at least one channel (14) which is connected to at least one old shaft wall (13), characterized in that the old shaft base (12) of the old shaft system (10) is arranged at a distance via at least one adapter arrangement (30) of a new shaft system (20), such that the at least one adapter arrangement (30) is in sealingly operative connection with the old shaft base (11) and / or with at least one old shaft base (12) and / or with at least one old shaft wall (13) of the old shaft base (11).
2. Shaft arrangement (1) according to claim 1, characterized in thatthe at least one adapter arrangement (30) is arranged at a distance from at least one old shaft wall (13) of the old shaft lower part (11) via at least one sealing device (5, 6, 8).
3. Shaft arrangement (1) according to one of the preceding claims, characterized in that the at least one adapter arrangement (30) is sealingly connected to at least one old shaft wall (13) of the old shaft system (10) via at least one sealing device (5, 6, 8).
4. Shaft arrangement (1) according to one of the preceding claims, characterized in that the at least one adapter arrangement (30) is sealingly connected to at least one old shaft wall (13) of the old shaft system (10) via at least one first sealing device (5).
5. Shaft arrangement (1) according to one of the preceding claims, characterized in thatthe old shaft base (12) of the old shaft system (10) is arranged at a distance via at least one adapter arrangement (30) from at least one shaft middle part (40) and / or at least one shaft upper part (50) and / or at least one shaft lower part (60) of a new shaft system (20), which have at least one sealing, pluggable and / or latchable connection.
6. Shaft arrangement (1) according to one of the preceding claims, characterized in that the at least one adapter arrangement (30) has at least one receiving element (35) and / or at least one receptacle (34).
7. Shaft arrangement (1) according to one of the preceding claims, characterized in that the at least one adapter arrangement (30) has at least one sealing device (5,6,7).
8. Shaft arrangement (1) according to one of the preceding claims, characterized in thatthe at least one adapter arrangement (30) has at least one receptacle (34) for at least one first sealing device (7) on its outer side (31) and / or on its inner side (32).
9. Shaft arrangement (1) according to one of the preceding claims, characterized in that the shaft base (60) of the new shaft system (20) is in operative connection with the receiving element (35) of the adapter arrangement (30).
10. Shaft arrangement (1) according to one of the preceding claims, characterized in that the shaft base (60) of the new shaft system (20) is operatively connected to the adapter arrangement (30) via at least one third sealing device (7).
11. Shaft arrangement (1) according to one of the preceding claims, characterized in that the sealing device (5,6,7,8) is designed as a sealing strip, as a wedge seal, as a round seal, as an activatable seal such as a swelling seal, a swellable seal, an inflatable seal and the like.
12. Shaft arrangement (1) according to one of the preceding claims, characterized in that the old shaft system (10) is arranged at a distance from the new shaft system (20) via at least one annular gap (3).
13. Shaft arrangement (1) according to one of the preceding claims, characterized in that the annular gap (3) between the old shaft system (10) and the new shaft system (20) at least partially comprises a backfill material (4).
14. Shaft arrangement (1) according to one of the preceding claims, characterized in that the adapter arrangement (30) and / or the shaft middle part (40) and / or the shaft upper part (50) and / or the shaft lower part (60) contains a polymer material or consists of a polymer material, wherein the polymer material is preferably a thermoplastic, particularly preferably a polyolefin, such as a polypropylene or a polyethylene or a polybutylene or a copolymer of the aforementioned, or a polyvinyl chloride, or consists of such.
15. System for receiving, conveying and storing a fluid with at least one shaft arrangement (1) according to one of claims 1 to 14.
Citation Information
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