WO2004007857A1 - Well - Google Patents

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Publication number
WO2004007857A1
WO2004007857A1 PCT/FI2003/000560 FI0300560W WO2004007857A1 WO 2004007857 A1 WO2004007857 A1 WO 2004007857A1 FI 0300560 W FI0300560 W FI 0300560W WO 2004007857 A1 WO2004007857 A1 WO 2004007857A1
Authority
WO
WIPO (PCT)
Prior art keywords
well
flow
guide protrusion
flow guide
cup
Prior art date
Application number
PCT/FI2003/000560
Other languages
French (fr)
Inventor
Esko HIPPELÄINEN
Original Assignee
Uponor Innovation Ab
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 Uponor Innovation Ab filed Critical Uponor Innovation Ab
Priority to DK03738158.9T priority Critical patent/DK1540098T3/en
Priority to AU2003244679A priority patent/AU2003244679A1/en
Priority to EP03738158A priority patent/EP1540098B1/en
Priority to AT03738158T priority patent/ATE453024T1/en
Priority to DE60330682T priority patent/DE60330682D1/en
Publication of WO2004007857A1 publication Critical patent/WO2004007857A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
    • E03F5/024—Manhole shafts or other inspection chambers; Snow-filling openings; accessories made of plastic material
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories

Definitions

  • the invention relates to a well with a flow channel at the bottom.
  • Wells especially drain wells, should have a flow channel at the bottom so that impurities flowing in the pipes do not block the well.
  • the flow channel is a chute at the bottom of the well that leads from an inlet connection to an outlet connection.
  • the flow channel can be made for instance by injection-moulding the bottom of the well so as to have flow channels from the inlet connection(s) to the outlet connection. If there are several inlet connections, the flow channels join in the middle of the bottom of the well. This type of solution is described in WO publication 01/96777, for instance. Making the bottom of the well by inject-moulding is quite expensive.
  • the locations of the inlet and outlet connections should be exactly determined in advance and making changes on the installation site is, in practice, not possible.
  • FI publication 76,159 describes a solution, in which a thick well bottom is formed with a thinner mid-section so as to have a bowl-like bottom.
  • a special drill is used to drill into the thick bottom a hole and a groove extending to the middle of the bowl-like bottom. Drilled flow channels from different directions then join in the middle of the bottom.
  • This type of solution is very difficult and expensive to implement. Making connections to the well on the installation site is especially arduous and difficult, because the connections require the use of a special drill.
  • the well of the invention is characterized in that the bottom of the well is cup-like and in the mid-section of the cup-like bottom, there is a flow guide protrusion so that the cup-like bottom and the flow guide protrusion together form a circular flow channel that directs the flow to circle along the edges of the bottom.
  • the essential idea of the invention is that the well has a cuplike bottom and in the mid-section of the cup-like bottom, there is flow guide protrusion so that the cup-like bottom and the flow guide protrusion together form a circular flow channel that directs the flow to circle along the edges of the bottom.
  • the idea of one embodiment of the invention is that the flow guide protrusion is arranged detachable from the bottom of the well.
  • the idea of a sec- ond embodiment is that a preform for an output connection is formed at the bottom of the well.
  • the idea of a third embodiment is that the flow guide protrusion has a flow guide bulge that is arranged to direct the flow towards the output connection.
  • the idea of a fourth embodiment is that the flow channel is inclined in such a manner that the flow is towards the output connection.
  • the invention provides the advantage that the drain well is simple and inexpensive to make. Forming connections to the well is fast and easy. Further, liquid and waste flow easily at the bottom of the well and the well is not easily blocked. The connections are easy to form anywhere on the well circumference, i.e. it is not necessary to know the locations of the connec- tions in advance when the well is made, but connection points can be made in the well on the installation site. This way, the well is especially well suited for renovations and retrofittings. By making the flow controller detachable, it is easy to clean and, if necessary, replace during maintenance.
  • Figure 1 is a schematic view of a bottom form of a well, seen diagonally from the top,
  • Figure 2 is a schematic view of the bottom form of Figure 1 with a flow guide protrusion, seen diagonally from the top,
  • Figure 3 is a schematic view of a well formed from the bottom form of Figure 1 , seen diagonally from the top, and
  • Figure 4 is a partly cross-sectional schematic view of a well formed from the bottom form of Figure 1 , seen diagonally from the top.
  • Figure 1 shows a well bottom 1.
  • the well bottom 1 is cuplike, i.e. shallow, even in the middle and curves upward on the edges.
  • the bottom 1 can be made of a plate by thermoforming, for instance. It is also possible to make the bottom 1 by injection-moulding or rotational casting, for example.
  • An outlet preform 2 for an outlet connection is also formed to the bottom 1.
  • the bottom 1 and naturally the entire well can be made of polyolefin, such as polyethylene PE or polypropylene PP.
  • the bottom 1 and well can also be made of polyvinyl chloride PVC, for instance.
  • a flow guide protrusion 3 is mounted in the mid- die of the bottom 1.
  • the flow guide protrusion 3 is preferably made of the same material as the bottom 1. It is also possible to make the flow guide protrusion 3 from a plate by thermoforming, injection-moulding or rotational casting or in some other suitable manner.
  • the flow guide protrusion 3 can be fixed to the bottom 1 or it can be detachably mounted in the middle of the bottom 1.
  • the cup-like bottom 1 and the flow guide protrusion 3 together form a circular flow channel 4. This way, fluid flowing to the well flows along the circular flow channel 4.
  • the circular flow channel 4 is designed so that the flow rate of fluid in the flow channel 4 is sufficient to prevent the well from blocking.
  • the flow guide protrusion can for instance be a dome in shape.
  • a flow guide bulge 5 extend- ing to the flow channel 4 is formed on the flow guide protrusion 3 at the location of the outlet connection. This way, fluid flowing along the circular flow channel 4 hits the flow guide bulge and is smoothly directed out through the outlet connection.
  • an ascending pipe 6 is welded to the bottom.
  • an outlet connection 7 is welded at the location of the outlet preform 2.
  • the well is ready for transport to the installation site.
  • An outlet pipe is connected to the outlet connection 7. If desired, the outlet pipe can be directly connected to the outlet preform, in which case the above outlet connection 7 is not needed.
  • the term outlet connection refers to an outlet preform 2, outlet connection 7 or outlet pipe.
  • inlet connections 8 can be fastened to the well as shown in Figure 4. It is thus possible to determine the locations of the inlet connections 8 on the installation site. This way, the well is ex- tremely versatile and well suited for use in renovation and retrofitting.
  • the inlet connections 8 can naturally also be fastened in the factory before the well is transported to the installation site.
  • Inlet pipes are connected to the inlet connection 8. If desired, the inlet pipes can be directly connected to the well, in which case the inlet connection 8 is not needed.
  • the term inlet connection refers to either an inlet unit or inlet pipe.
  • the inlet connection is preferably located higher than the outlet connection. Fluid then flows from the inlet connection along the flow channel 4 to the outlet connection.
  • the flow channel 4 is preferably inclined towards the outlet connection. Fluid then flows easily to the outlet connection.
  • the flow guide protrusion 3 is located in the middle of the bottom 1 , but if desired, the flow guide protrusion 3 can also be located asymmetrically in the mid- section of the bottom 1 in such a manner that the flow channel 4 is narrower in part.
  • the well is especially well suited for use in sewer systems and rainwater systems.

Abstract

A well configured for use in sewer systems or rainwater systems, for instance, the well having a cup-like bottom (1) with a flow channel (4). The bottom (1) of the well is cup-like and in the mid-section of the cup-like bottom (1), there is a flow guide protrusion (3). The cup-like bottom (1) and the flow guide protrusion (3) together form a circular flow channel (4) for guiding the flow to circle along the edges of the bottom (1).

Description

WELL
FIELD OF THE INVENTION
[0001] The invention relates to a well with a flow channel at the bottom.
BACKGROUND OF THE INVENTION
[0002] Wells, especially drain wells, should have a flow channel at the bottom so that impurities flowing in the pipes do not block the well. The flow channel is a chute at the bottom of the well that leads from an inlet connection to an outlet connection. The flow channel can be made for instance by injection-moulding the bottom of the well so as to have flow channels from the inlet connection(s) to the outlet connection. If there are several inlet connections, the flow channels join in the middle of the bottom of the well. This type of solution is described in WO publication 01/96777, for instance. Making the bottom of the well by inject-moulding is quite expensive. In addition, the locations of the inlet and outlet connections should be exactly determined in advance and making changes on the installation site is, in practice, not possible.
[0003] FI publication 76,159 describes a solution, in which a thick well bottom is formed with a thinner mid-section so as to have a bowl-like bottom. When a connection is made to the well, a special drill is used to drill into the thick bottom a hole and a groove extending to the middle of the bowl-like bottom. Drilled flow channels from different directions then join in the middle of the bottom. This type of solution is very difficult and expensive to implement. Making connections to the well on the installation site is especially arduous and difficult, because the connections require the use of a special drill.
BRIEF DESCRIPTION OF THE INVENTION
[0004] It is an object of the present invention to provide a new type of well.
[0005] The well of the invention is characterized in that the bottom of the well is cup-like and in the mid-section of the cup-like bottom, there is a flow guide protrusion so that the cup-like bottom and the flow guide protrusion together form a circular flow channel that directs the flow to circle along the edges of the bottom.
[0006] The essential idea of the invention is that the well has a cuplike bottom and in the mid-section of the cup-like bottom, there is flow guide protrusion so that the cup-like bottom and the flow guide protrusion together form a circular flow channel that directs the flow to circle along the edges of the bottom. The idea of one embodiment of the invention is that the flow guide protrusion is arranged detachable from the bottom of the well. The idea of a sec- ond embodiment is that a preform for an output connection is formed at the bottom of the well. The idea of a third embodiment is that the flow guide protrusion has a flow guide bulge that is arranged to direct the flow towards the output connection. The idea of a fourth embodiment is that the flow channel is inclined in such a manner that the flow is towards the output connection. [0007] The invention provides the advantage that the drain well is simple and inexpensive to make. Forming connections to the well is fast and easy. Further, liquid and waste flow easily at the bottom of the well and the well is not easily blocked. The connections are easy to form anywhere on the well circumference, i.e. it is not necessary to know the locations of the connec- tions in advance when the well is made, but connection points can be made in the well on the installation site. This way, the well is especially well suited for renovations and retrofittings. By making the flow controller detachable, it is easy to clean and, if necessary, replace during maintenance.
BRIEF DESCRIPTION OF THE FIGURES [0008] The invention is described in greater detail in the attached drawings, in which
Figure 1 is a schematic view of a bottom form of a well, seen diagonally from the top,
Figure 2 is a schematic view of the bottom form of Figure 1 with a flow guide protrusion, seen diagonally from the top,
Figure 3 is a schematic view of a well formed from the bottom form of Figure 1 , seen diagonally from the top, and
Figure 4 is a partly cross-sectional schematic view of a well formed from the bottom form of Figure 1 , seen diagonally from the top.
DETAILED DESCRIPTION OF THE INVENTION
[0009] Figure 1 shows a well bottom 1. The well bottom 1 is cuplike, i.e. shallow, even in the middle and curves upward on the edges. The bottom 1 can be made of a plate by thermoforming, for instance. It is also possible to make the bottom 1 by injection-moulding or rotational casting, for example. An outlet preform 2 for an outlet connection is also formed to the bottom 1. The bottom 1 and naturally the entire well can be made of polyolefin, such as polyethylene PE or polypropylene PP. The bottom 1 and well can also be made of polyvinyl chloride PVC, for instance.
[0010] In Figure 2, a flow guide protrusion 3 is mounted in the mid- die of the bottom 1. The flow guide protrusion 3 is preferably made of the same material as the bottom 1. It is also possible to make the flow guide protrusion 3 from a plate by thermoforming, injection-moulding or rotational casting or in some other suitable manner. The flow guide protrusion 3 can be fixed to the bottom 1 or it can be detachably mounted in the middle of the bottom 1. The cup-like bottom 1 and the flow guide protrusion 3 together form a circular flow channel 4. This way, fluid flowing to the well flows along the circular flow channel 4. The circular flow channel 4 is designed so that the flow rate of fluid in the flow channel 4 is sufficient to prevent the well from blocking. The flow guide protrusion can for instance be a dome in shape. A flow guide bulge 5 extend- ing to the flow channel 4 is formed on the flow guide protrusion 3 at the location of the outlet connection. This way, fluid flowing along the circular flow channel 4 hits the flow guide bulge and is smoothly directed out through the outlet connection.
[0011] After forming the bottom of the well, an ascending pipe 6 is welded to the bottom. Similarly, an outlet connection 7 is welded at the location of the outlet preform 2. In the form shown in Figure 3, the well is ready for transport to the installation site. An outlet pipe is connected to the outlet connection 7. If desired, the outlet pipe can be directly connected to the outlet preform, in which case the above outlet connection 7 is not needed. In this appli- cation, the term outlet connection refers to an outlet preform 2, outlet connection 7 or outlet pipe.
[0012] On the installation site, inlet connections 8 can be fastened to the well as shown in Figure 4. It is thus possible to determine the locations of the inlet connections 8 on the installation site. This way, the well is ex- tremely versatile and well suited for use in renovation and retrofitting. The inlet connections 8 can naturally also be fastened in the factory before the well is transported to the installation site. Inlet pipes are connected to the inlet connection 8. If desired, the inlet pipes can be directly connected to the well, in which case the inlet connection 8 is not needed. In this description, the term inlet connection refers to either an inlet unit or inlet pipe. The inlet connection is preferably located higher than the outlet connection. Fluid then flows from the inlet connection along the flow channel 4 to the outlet connection. The flow channel 4 is preferably inclined towards the outlet connection. Fluid then flows easily to the outlet connection.
[0013] The drawings and the related description are only intended to illustrate the idea of the invention. The invention may vary in detail within the scope of the claims. When the flow guide protrusion 3 is made detachable, it is possible to detach it during well maintenance work to facilitate cleaning and servicing. The flow guide protrusion 3 can also be made to be in the same structure with the bottom 1 by forming the bottom 1 and at the same time the flow guide protrusion 3 to it from a plate by thermoforming, for instance. The manufacture of the well is then simple and inexpensive. Most preferably, the flow guide protrusion 3 is located in the middle of the bottom 1 , but if desired, the flow guide protrusion 3 can also be located asymmetrically in the mid- section of the bottom 1 in such a manner that the flow channel 4 is narrower in part. The well is especially well suited for use in sewer systems and rainwater systems.

Claims

1. A well with a flow channel (4) at the bottom (1), characterized in that the bottom (1) of the well is cup-like and in the mid-section of the cup-like bottom (1), there is flow guide protrusion (3) so that the cup-like bot- tom (1) and the flow guide protrusion (3) together form a circular flow channel (4) that directs the flow to circle along the edges of the bottom (1 ).
2. A well as claimed in claim 1, characterized in that the flow guide protrusion (3) is detachably arranged to the bottom (1 ).
3. A well as claimed in claim 1 or 2, characterized in that the bottom (1 ) has a preform (2) for an outlet connection.
4. A well as claimed in claim 3, characterized in that the flow channel (4) is inclined so that the flow is towards the outlet connection.
5. A well as claimed in any one of the preceding claims, characterized in that the flow guide protrusion (3) has a flow guide bulge (5) that is arranged to guide the flow towards the outlet connection.
6. A well as claimed in any one of the preceding claims, characterized in that the well is made of plastic.
7. A well as claimed in claim 6, characterized in that the well is made of polyolefin.
8. A well as claimed in any one of the preceding claims, characterized in that the well is configured for use in sewer systems or rainwater systems.
PCT/FI2003/000560 2002-07-12 2003-07-11 Well WO2004007857A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DK03738158.9T DK1540098T3 (en) 2002-07-12 2003-07-11 Well
AU2003244679A AU2003244679A1 (en) 2002-07-12 2003-07-11 Well
EP03738158A EP1540098B1 (en) 2002-07-12 2003-07-11 Well
AT03738158T ATE453024T1 (en) 2002-07-12 2003-07-11 SPRING
DE60330682T DE60330682D1 (en) 2002-07-12 2003-07-11 FOUNTAIN

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20021381A FI113390B (en) 2002-07-12 2002-07-12 Well
FI20021381 2002-07-12

Publications (1)

Publication Number Publication Date
WO2004007857A1 true WO2004007857A1 (en) 2004-01-22

Family

ID=8564355

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2003/000560 WO2004007857A1 (en) 2002-07-12 2003-07-11 Well

Country Status (7)

Country Link
EP (1) EP1540098B1 (en)
AT (1) ATE453024T1 (en)
AU (1) AU2003244679A1 (en)
DE (1) DE60330682D1 (en)
DK (1) DK1540098T3 (en)
FI (1) FI113390B (en)
WO (1) WO2004007857A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2028324A1 (en) 2007-08-20 2009-02-25 Freitas & Silva, S.A. Manhole or inspection chamber
EP2107174A2 (en) 2008-04-01 2009-10-07 Uponor Innovation Ab Well and well bottom
EP2157251A1 (en) * 2008-08-14 2010-02-24 Kessel GmbH Bottom insert for a sewer manhole

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1443052A (en) * 1973-01-04 1976-07-21 Hepworth Iron Co Ltd Inspection chambers
NL1000840C2 (en) * 1995-07-19 1997-01-21 Waco Liesbosch Beton B V Collection pit for sewers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1443052A (en) * 1973-01-04 1976-07-21 Hepworth Iron Co Ltd Inspection chambers
NL1000840C2 (en) * 1995-07-19 1997-01-21 Waco Liesbosch Beton B V Collection pit for sewers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2028324A1 (en) 2007-08-20 2009-02-25 Freitas & Silva, S.A. Manhole or inspection chamber
EP2107174A2 (en) 2008-04-01 2009-10-07 Uponor Innovation Ab Well and well bottom
EP2157251A1 (en) * 2008-08-14 2010-02-24 Kessel GmbH Bottom insert for a sewer manhole

Also Published As

Publication number Publication date
FI20021381A (en) 2004-01-13
DK1540098T3 (en) 2010-04-19
FI113390B (en) 2004-04-15
ATE453024T1 (en) 2010-01-15
AU2003244679A1 (en) 2004-02-02
FI20021381A0 (en) 2002-07-12
EP1540098B1 (en) 2009-12-23
DE60330682D1 (en) 2010-02-04
EP1540098A1 (en) 2005-06-15

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