NL1039998C2 - System for connecting energy recovering pipe sections. - Google Patents

System for connecting energy recovering pipe sections. Download PDF

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Publication number
NL1039998C2
NL1039998C2 NL1039998A NL1039998A NL1039998C2 NL 1039998 C2 NL1039998 C2 NL 1039998C2 NL 1039998 A NL1039998 A NL 1039998A NL 1039998 A NL1039998 A NL 1039998A NL 1039998 C2 NL1039998 C2 NL 1039998C2
Authority
NL
Netherlands
Prior art keywords
pipe
passages
coupling means
sewage
pipe sections
Prior art date
Application number
NL1039998A
Other languages
Dutch (nl)
Inventor
Sander Arendsen
Original Assignee
Wavin Bv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wavin Bv filed Critical Wavin Bv
Priority to NL1039998A priority Critical patent/NL1039998C2/en
Priority to PCT/EP2014/050602 priority patent/WO2014108562A1/en
Priority to EP14700848.6A priority patent/EP2943713A1/en
Application granted granted Critical
Publication of NL1039998C2 publication Critical patent/NL1039998C2/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F16L39/005—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies for concentric pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F16L39/06—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies of the multiline swivel type, e.g. comprising a plurality of axially mounted modules
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

The invention relates to a system (11) comprising at least two sanitary sewage pipe sections (6) comprising a first and a second pipe section with central passageways. Each pipe section has pipe walls with longitudinally extending fluid passages (7) therein for recovering energy from sewage flowing through the central passageways. The system further comprises a fluid connector (71, 51) for connecting the fluid passages of the first and second pipe section, and coupling device (38) for coupling the first and second pipe sections. The coupling device defines together with the central passageways of the pipe sections an obstacle free sewage flow passage of the system.

Description

Title: System for connecting energy recovering pipe sections.
The invention relates to a system for connecting energy recovering pipe sections.
5
Such a system is for example known from NL-8205037. This patent document discloses double walled pipe sections for recovering heat from the soil. The double walled pipe sections can be connected by a joint having interior and 10 exterior sleeves. The sleeves are positioned over the double walled pipe sections and can be attached thereto by using for example adhesive.
The system of NL-8205037 is preferably not used in a sanitary 15 sewer, as the central flow passage defined therein comprises obstacles, such as for example the stepped inner sleeve. This inner sleeve will increase the risk of clogging when used in a sewage system. In addition, sanitary sewage pipes are often located underground, which means that repairing clogged pipes 20 and/or maintenance thereto has a lot of impact with regard to work load.
It is therefore an object of the present invention to provide a system for connecting pipe sections for recovering energy, 25 which system is used for recovering energy from sewage.
With the system according to the present invention as defined in claim 1 a sewage flow path is provided which minimizes the risk of clogging and therefore minimizes repair and 30 maintenance work. The system of the present invention provides an obstacle free flow path for sewage.
Advantageous embodiments of the present invention can be found in the dependent claims.
35 1 03 99 98 2
To explain the invention in more detail, exemplary embodiments thereof will hereinafter be described with reference to the accompanying drawings, wherein: 5 Figure 1 shows a section of a first embodiment of the system according to the present invention;
Figures 2a and 2b show schematic views of parts of the system shown in figure 1;
Figure 3 shows a section of a second embodiment of the system 10 according to the present invention;
Figures 4a and 4b show a schematic view of a third embodiment of the system according to the present invention;
In this description, identical or corresponding parts have 15 identical of corresponding reference numerals.
Figures 1, 2a and 2b show (parts) of the system 1 of the present invention. The system 1 shown in figure 1 comprises at least two sanitary sewage pipe sections, a first pipe 20 section 3, and a second pipe section 5 with central passageways 6. Each pipe section having pipe walls 8 with longitudinally extending fluid passages 7 therein for recovering energy from sewage (not shown) flowing through the central passageways 6 in a direction indicated with arrow PI. 25 The pipe sections are made of plastics, particularly thermoplastics. The pipe wall 8 are provided with longitudinal passages 7 presenting a circular cross section. The passages also known as channels are regularly divided over the circumference of the pipe sections.
30
The system 1 further comprises coupling means 11 for coupling the first 3 and second pipe sections 5.
The pipe wall end parts have spigot ends 15. The spigot ends 35 15 provide dead endings for the fluid passages 7 in pipe walls 8. To establish a fluid connection between the fluid 3 passages 7 of the first pipe section 3 and the fluid passages 7 of the second pipe section 5, the coupling means 11 incorporate fluid connector means 13. The fluid connector means 13 comprise a channel 17 to be connected to openings 5 19, 20 in the pipe walls 8. The fluid connector means 13 will be discussed in more detail below with reference to figure 2b.
The coupling means 11 comprise an annular rim 21, which is 10 attached to an inner annular shell 38 of the coupling means 11. The rim 21 is provided with a radially inner side 23. This radially inner side 23 of the coupling means 11 together with inner pipe walls 28 define a sewage flow passage 30 of the system 1. The sewage flow passage 30 of the system 1 15 according to the present invention provides a smooth sewage flow path, which extends in the direction of arrow PI. As can be seen in figure 1 the flow path is without obstacles, such as indentations and/or protruding parts which increase the risk that the flow path is clogged.
20
The radially inner side 23 is flush with the inner pipe walls 28 such that the diameter D1 of the sewage flow path defined by the radially inner side 23 of the rim 21 is identical to the central passageways diameter D2, i.e. the diameter 25 defined by the inner pipe wall 28.
The rim 21 further comprises two opposing contacting sides 31, 33, which are positioned against spigot end parts 15 of the pipe sections 3, 5. Preferably, the rim is made of 30 elastic material or plastic material, e.g. PVC such that spigot end parts 15 can be firmly pushed against the rim 21, minimizing the transition effects between the rim 21 and the spigot end parts 15 such that an almost seamless transition is provided there between.
35 4
The coupling means 11 further comprise a number of annular elastomeric seals 41, 43, 45, 47 for coupling the pipe sections 3, 5. In addition, the seals 41, 43, 45, 47 provide a fluid tight connection between the coupling means 11 and 5 the pipe sections 3, 5.
Further, figure 1 and 2a show an annular element 51 arranged or able to be arranged over the first pipe section 3 and attached thereto by means of annular elastomeric seals 53, 10 55. The annular element 51 shows an inlet 57 to provide for example fluid in the direction of arrow P2 through opening 59 into the fluid passages 7. It is also possible to use inlet 57 as an outlet, i.e. to remove fluid from the fluid passages 7. The annular element 51 further comprises a second inlet 61 15 positioned above another opening 60 in the pipe wall 8. The openings 19, 20, 59, 60 can be prefabricated or provided in situ.
In figure 2b the coupling means 11 is shown in more detail. 20 The cylindrical coupling means 11 comprises an outer annular shell 71 and the inner annular shell 38 connected to the outer annular shell 71 by means of clamping rings 90 located in recesses 92 in the outer annular shell 71. For providing a fluid tight connection between outer annular shell 71 the 25 inner annular shell 38 sealing elements 75, 76 are provided. The inner annular shell 38 is provided with openings 81 forming part of channel 17. The other part of the channel 17 is provided by the space 80 between the outer annular shell 71 and the inner annular shell 38. Between openings 81 a part 30 83 of the annular shell 38 is made thinner than other parts of the annular shell 38. By means of thinner part 83 the fluid from fluid channels 7 is able to flow to the openings 81, indicated by arrows P3 and P4. Part 83 in combination with fluid connector means 13 provides a fluid mixing effect 35 of the fluid from channels 7 such that the heat exchange between the fluid and the sewage can be optimized.
5
In figure 3 a second embodiment of the system 101 according to the invention is shown. The pipe sections 3, 5 comprise female end parts 115. These female end parts 115 are provided 5 with seals 141, 143, 145, 147. The pipe sections are coupled by means of coupling means 111. Coupling means 111 comprise an outer part 111A and an inner part 111B, which are connected to female end parts 115. The channel 117 is integrated in the coupling means 111, and the channel 117 10 provides the fluid connection between the fluid passages 7 of the pipe sections 3, 5.
Clamping rings (not shown) can optionally be moved over the outer side 111A of the coupling means 111 for providing a 15 radial inward clamping force to prevent that the female end parts 115 move relatively to the coupling means 111.
The coupling means 111, more in particular the inner part 111B of the coupling means 111, define together with the 20 central passageways of the pipe sections in the direction of arrow PI a sewage flow passage 130 of the system 101. In the sewage flow passage 130 the inner part 111B of the coupling means only has one radially inner side 123 extending parallel to the flow direction of the sewage indicated by arrow PI.
25
The shape of the inner part 111B corresponds to the shape of the female end parts 115 of the pipe sections 3, 5. In this manner the system 101 comprises a smooth or continuous, i.e. without steps sewage flow path without obstacles, such as 30 indentations or protruding parts. In addition, the radially inner side 123 is flush with the inner pipe walls 28 such that the diameter D1 of the sewage flow path defined by the radially inner side 123 is identical to the central passageways diameter D2, i.e. the diameter defined by the 35 inner pipe wall 28.
6
Figures 4a and 4b show another embodiment of the system 201 of the present invention. Figure 4b shows the system 201 not fully coupled, i.e. to finish the coupling operation the pipe sections 3, 5 have to be moved closer to each other over a 5 distance indicated with A in figure 4b. The parts of the system 201 shown in the schematic view of figure 4b are not drawn to scale and the distances shown between certain parts may differ from the actual distances. In system 201 the coupling means 211 are provided by the pipe wall end parts, 10 wherein the pipe wall end part of the first pipe section 3 is designed as a female coupling part 215A and the pipe wall end part of the second pipe section 5 is designed as a male coupling part 215B. The fluid connector means 213 are provided by an external channel 217 and two annular elements 15 251, which connect the channel 217 to the fluid passages 7 in the pipe sections 3, 5. In other words, in system 201 the fluid connector means are not incorporated in the coupling means 211.
20 In a fully coupled state (not shown) the coupling means 211, more in particular male coupling part 215B, together with the central passageways 6 of the pipe sections 3, 5 form a sewage flow passage 230 of the system, wherein in the sewage flow passage 230 of the system 201 the coupling means only have 25 one radially inner side 223 extending parallel to the flow direction of the sewage. As the radially inner side 223 is flush with the inner pipe walls 28, the diameter (not shown) of the sewage flow path defined by the radially inner side 223 is identical to the central passageways diameter (not 30 shown), i.e. the diameter defined by the inner pipe wall 28.
In the embodiments of the system 1, 101, 201 a sewage flow path 30, 130, 230 is provided without radially inwardly protruding parts of the coupling means 11, 111, 211 with 35 respect to the inner pipe wall 28 of the pipe sections 3, 5. More in particular the system 1, 101, 201 comprises a sewage 7 flow path with a constant diameter over substantially the complete length of the system seen in the direction of flow indicated by arrow PI.
5 Coupling means 11 for coupling first and second pipe sections, said coupling means comprise a rim 21 providing only one radially inner side in the flow path of the sewage, which radially inner side extends parallel to the flow direction of the sewage and the rim is dimensioned such that 10 the radially inner side is flush with the inner pipe walls 28 such that the diameter D1 of the sewage flow path defined by the radially inner side 23 of the rim 21 is identical to the central passageways diameter D2, i.e. the diameter defined by the inner pipe wall 28. Preferably, fluid connector means are 15 integrated in the coupling means, wherein, if the pipe sections are coupled by means of the coupling means, the center line of the channel of the fluid connector means does not coincide with the center lines of the fluid passages as can been seen in the embodiments shown in the figures. 20 Preferably, the main part of the channel, i.e. the part of the channel that extends above the transition between the pipe sections, comprises a center line extending parallel to the center lines of the fluid passages in the pipe walls.
25 In the system 1 it is also possible to use an external channel provided between two annular elements, instead of the channel 17 integrated in the coupling means 11.
1 03 99 98

Claims (11)

1. Systeem voor het verbinden van buisdelen voor het herwinnen van energie, waarin het systeem omvat: - ten minste twee sanitaire rioolwater buisdelen omvattende een eerste en een tweede buisdeel met centrale doorgangen, ieder buisdeel heeft buiswanden met daarin in de 10 lengterichting uitstrekkende vloeistofdoorgangen voor het herwinnen van energie van rioolwater stromende door de centrale doorgangen, vloeistofverbindingsmiddelen voor het verbinden van de vloeistofdoorgangen van het eerste en tweede buisdeel, 15. koppelingsmiddelen voor het koppelen van het eerste en tweede buisdeel, de koppelingsmiddelen definiëren tezamen met de centrale doorgangen van de buisdelen een rioolwater doorstroomdoorgang van het systeem, waarin in de rioolwater doorstroomdoorgang van het systeem de koppelingsmiddelen 20 alleen een radiale binnenzijde hebben parallel uitstrekkende aan de stroomrichting van het rioolwater.1. System for connecting pipe sections for energy recovery, wherein the system comprises: - at least two sanitary sewage pipe sections comprising a first and a second pipe section with central passages, each pipe section has pipe walls with liquid passages extending in the longitudinal direction therein recovering energy from sewage water flowing through the central passages, fluid connecting means for connecting the fluid passages of the first and second pipe sections, 15. coupling means for coupling the first and second pipe sections, defining the coupling means together with the central passages of the pipe sections a sewage water flow passage of the system, wherein in the sewage water flow passage of the system the coupling means 20 only have a radial inner side parallel to the flow direction of the sewage water. 2. Systeem volgens conclusie 1, waarin de koppelingsmiddelen zijn voorzien van buiswand einddelen, 25 waarin het buiswand einddeel van het eerste buisdeel is ontworpen als een mannelijk koppelingsdeel en het buiswand einddeel van het tweede buisdeel is ontworpen als een vrouwelijk koppelingsdeel.2. System as claimed in claim 1, wherein the coupling means are provided with pipe wall end parts, wherein the pipe wall end part of the first pipe part is designed as a male coupling part and the pipe wall end part of the second pipe part is designed as a female coupling part. 3. Systeem volgens conclusie 1 en/of 2, waarin de diameter bepaald door de radiale binnenzijde van de koppelingsmiddelen identiek is aan de diameter van de centrale doorgangen.3. System as claimed in claim 1 and / or 2, wherein the diameter determined by the radial inner side of the coupling means is identical to the diameter of the central passages. 4. Systeem volgens conclusie 3, waarin de rioolwater 35 doorstroomdoorgang van het systeem alleen is bepaald door de radiale binnenzijde tezamen met de centrale doorgangen. i 0 3 9 9 9 84. System as claimed in claim 3, wherein the sewage water flow passage of the system is only determined by the radial inner side together with the central passages. 0 3 9 9 9 8 5. Systeem volgens conclusie 4, waarin de rioolwater doorstroomdoorgang voorziet in een glad rioolwater doorstroom pad zonder obstakels, zoals indeukingen of uitstekende delen. 5The system of claim 4, wherein the sewage flow passage provides a smooth sewage flow path without obstacles, such as indentations or projections. 5 6. Systeem volgens een van de conclusies 1-5, waarin de vloeistofverbindingsmiddelen een kanaal definiëren tussen vloeistofdoorgangen van het eerste en een tweede buisdeel, waarin de hartlijn van het kanaal niet samenvalt met de 10 hartlijnen van de vloeistofdoorgangen.6. System as claimed in any of the claims 1-5, wherein the liquid connecting means define a channel between liquid passages of the first and a second pipe part, wherein the center line of the channel does not coincide with the center lines of the liquid passages. 7. Systeem volgens conclusie 6, waarin het kanaal is geïntegreerd in de koppelingsmiddelen.System according to claim 6, wherein the channel is integrated in the coupling means. 8. Systeem volgens een van de conclusies 1-7, verder omvattende twee ringvormige elementen, waarin het eerste ringvormig element aangebracht is over het eerste buisdeel en het tweede ringvormig element aangebracht is over het tweede buisdeel, waarin de ringvormige elementen zijn voorzien van 20 inlaten en/of uitlaten naar de vloeistofdoorgangen.8. System as claimed in any of the claims 1-7, further comprising two annular elements, in which the first annular element is arranged over the first tube part and the second annular element is arranged over the second tube part, in which the annular elements are provided with inlets and / or outlets to the fluid passages. 9. Systeem volgens conclusie 8, waarin de vloeistofdoorgangen van het eerste en tweede buisdeel zijn verbonden met elkaar door middel van de ringvormige 25 elementen.9. System as claimed in claim 8, wherein the fluid passages of the first and second tube part are connected to each other by means of the annular elements. 10. Systeem volgens een van de conclusies 1-9, waarin de radiale binnenzijde is aangebracht op een rand met ten minste twee tegengestelde contactzijden, welke kunnen worden 30 gepositioneerd tegen buiswand einddelen van de buisdelen.10. System as claimed in any of the claims 1-9, wherein the radial inner side is arranged on an edge with at least two opposite contact sides, which can be positioned against pipe wall end parts of the pipe parts. 11. Systeem volgens conclusie 10, waarin de rand vervaardigd is van elastisch materiaal of kunststof materiaal, zoals PVC. 35 1039998The system of claim 10, wherein the edge is made of elastic material or plastic material, such as PVC. 35 1039998
NL1039998A 2013-01-14 2013-01-14 System for connecting energy recovering pipe sections. NL1039998C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL1039998A NL1039998C2 (en) 2013-01-14 2013-01-14 System for connecting energy recovering pipe sections.
PCT/EP2014/050602 WO2014108562A1 (en) 2013-01-14 2014-01-14 System for connecting energy recovering pipe sections
EP14700848.6A EP2943713A1 (en) 2013-01-14 2014-01-14 System for connecting energy recovering pipe sections

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1039998 2013-01-14
NL1039998A NL1039998C2 (en) 2013-01-14 2013-01-14 System for connecting energy recovering pipe sections.

Publications (1)

Publication Number Publication Date
NL1039998C2 true NL1039998C2 (en) 2014-07-15

Family

ID=49998247

Family Applications (1)

Application Number Title Priority Date Filing Date
NL1039998A NL1039998C2 (en) 2013-01-14 2013-01-14 System for connecting energy recovering pipe sections.

Country Status (3)

Country Link
EP (1) EP2943713A1 (en)
NL (1) NL1039998C2 (en)
WO (1) WO2014108562A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2975312T3 (en) * 2014-07-14 2019-10-31 Wavin Bv System for cooling a flow or for extracting heat out of a flow through a pipeline and/or for extracting heat out of a surrounding of a pipeline

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017102A (en) * 1975-06-16 1977-04-12 Controls Southeast, Inc. Jacket construction for pipe coupling
NL8205037A (en) 1982-12-29 1984-07-16 Wavin Bv Plastics pipe section bridge piece - comprises sleeve with chamber connecting passages in pipe section walls
US6086114A (en) * 1998-05-20 2000-07-11 Ziu; Christopher G. Double-containment pipe assembly with conical-shaped internal anchor
US6848720B2 (en) * 2002-08-09 2005-02-01 The Boeing Company Shrouded fluid-conducting apparatus

Also Published As

Publication number Publication date
WO2014108562A1 (en) 2014-07-17
EP2943713A1 (en) 2015-11-18

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