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EP0570739A1 - Système de drainage - Google Patents

Système de drainage Download PDF

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Publication number
EP0570739A1
EP0570739A1 EP93107035A EP93107035A EP0570739A1 EP 0570739 A1 EP0570739 A1 EP 0570739A1 EP 93107035 A EP93107035 A EP 93107035A EP 93107035 A EP93107035 A EP 93107035A EP 0570739 A1 EP0570739 A1 EP 0570739A1
Authority
EP
European Patent Office
Prior art keywords
drainage system
line
collecting
negative pressure
laid
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP93107035A
Other languages
German (de)
English (en)
Other versions
EP0570739B1 (fr
Inventor
Harald Michael
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0570739A1 publication Critical patent/EP0570739A1/fr
Application granted granted Critical
Publication of EP0570739B1 publication Critical patent/EP0570739B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E03F1/006—Pneumatic sewage disposal systems; accessories specially adapted therefore
    • E03F1/007—Pneumatic sewage disposal systems; accessories specially adapted therefore for public or main systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/402—Distribution systems involving geographic features
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87571—Multiple inlet with single outlet
    • Y10T137/87676—With flow control
    • Y10T137/87684—Valve in each inlet

Definitions

  • the invention relates to a drainage system operated with negative pressure, consisting of a negative pressure source, at least one collecting line connected to it, laid in or above the floor, and a plurality of intermediate lines connected to it, which can be shut off by independently operable suction valves.
  • a sink or pocket may be formed in which the water remaining in the adjacent line section collects and again forms a stopper which closes the line cross section and which is transported at least to the next sink or pocket when opened by opening a Valve, in turn, a pressure difference is generated between the side of the plug facing the outer end of the manifold and the side facing the vacuum source.
  • Vacuum drainage systems can sometimes also contain free fall lines in which the system negative pressure prevails (cf. DE 29 08 745 C2 and DE 26 37 962 B2).
  • the vacuum source ie the vacuum pump
  • the house connections or other connections to be suctioned in which the water fills the pipe cross-section.
  • the vacuum drainage systems for local drainage that have been built so far also work with relatively large pressure fluctuations in the pipe network, depending on their load or filling. This is due to the fact that the suction valve of a house connection only opens automatically if there is a certain minimum negative pressure in the manifold at the connection point, on the other hand that there are enough large receptacles at the individual house connections that can hold a multiple of the volume of water to be extracted during a suction process and are able to store it in the long term. If there is only a slight negative pressure in the line system temporarily or only a slight negative pressure overall, the house connections affected do not open temporarily until the situation has normalized, possibly with the ventilation valves mentioned.
  • the suction valves on the house connections of the known vacuum drainage systems are controlled so that they automatically open at a certain filling level of the collecting container at the house connection and in the presence of a sufficient negative pressure in the vacuum line and either after a certain period of time or after the collecting container has been emptied and additionally a certain one Close the opening time for the intake of air. It is irrelevant for the safe operation of the system whether a collection container is actually completely emptied during a suction process, because if this is not the case, a new suction process will be initiated a short time later if there is sufficient vacuum.
  • the premature closing of a suction valve of the type described in EP 0 341 595 B1 and other pressure-dependent controlled valves can be triggered by pressure fluctuations which, for the reasons described above, have hitherto been unavoidable in vacuum drainage systems.
  • the object of the invention is therefore to create a drainage system of the type described at the beginning, in which the vacuum available at the connecting lines is stabilized with simple means is, so that the function of pressure-controlled suction valves and possibly the suction of wastewater under difficult conditions, such as. B. via high risers is guaranteed.
  • the above object is achieved in that the manifold between the connecting lines and the negative pressure source is continuously laid with a slope and is dimensioned so large that its inner cross section remains partially free even at peak loads.
  • the new drainage system represents a combination of elements of a conventional freefall drainage system and a vacuum drainage system.
  • the collecting lines with slope sections are also laid in vacuum drainage systems for local drainage where the wastewater flows by gravity towards the vacuum source.
  • the decisive factor is that there is a continuously open connection between the vacuum source and the individual suction valves, which is not interrupted by water columns of different lengths, so that the suction valves arranged near the outer end of the collecting line also have an empty space and are not interrupted by sluggish water plugs and water columns the vacuum of the vacuum source.
  • the manifold is only partially filled, preferably up to about half the height of its inner cross section, and the uninterrupted gradient also prevents the formation of plugs in the further course of the manifold, so that over its entire length, regardless of the current one Load, essentially the same negative pressure prevails.
  • the invention does not depend on the type of discharge of the waste water, but rather on the supply of the suction valves with stabilized negative pressure, is also evident from the fact that in applications where only the pneumatic control devices of the suction valves function properly is, as an alternative to the first-mentioned solution, it can be provided that the control devices of the suction valves are connected to the vacuum source via a control line which is separate from the collecting line. It can be seen from a comparison with the first solution that the free cavity above the water level in the collecting line takes over the function of the control line of the second solution. In the case of the latter, it does not matter whether the manifold functions as a free fall line or as a vacuum drainage line based on the principle of plug production.
  • the collecting line therefore preferably has a length of several hundred meters and an inner diameter of at least approximately 125 mm.
  • the vacuum drainage system shown consists of a central collecting space 10 which is constantly kept at a negative pressure of about 5 to 7 m water column by means of a vacuum pump 12 and serves as a negative pressure source.
  • Two collecting pipes 14 and 16 are connected to the collecting space 10 above the water level, with a gradient of at least one in the floor 4 to 6 per mille are laid towards the collecting room 10 and extend on opposite sides along the platform of a maintenance station.
  • the manifolds 14 and 16 consist of pressure-tightly connected plastic pipes with an inner diameter of z. B. about 150 mm. Depending on the application, this can also be somewhat smaller at the outer end of a manifold, e.g. B. about 125 mm or gef. also only be 90 mm, and larger diameter values of z.
  • connecting lines 22 In the upper, free area of the collecting line 14, 16 open, distributed over their length, several connecting lines 22 each, which have a substantially smaller cross section than the collecting lines, so that even a large volume of wastewater sucked off via a connecting line 22 despite the slower flow velocity in the manifold 14 or 16 whose cross-section does not fill.
  • the connecting lines 22 each contain a suction valve 24, as is described in detail in EP 0 341 595 B1 together with its control device.
  • the suction valve 24 is opened after coupling the connecting line of the wastewater tank of a railroad car and automatically closed again by said pneumatic control device after the wastewater tank of the railroad car has been sucked empty and only air flows in.
  • a control line 26 which is laid next to the latter and is indicated by dashed lines in FIG is and extends with branches along the individual connecting lines 22 to the suction valves 24. If such a control line 26 is used, the collecting line 14 can also have a smaller cross section and be laid with sinks or pockets to form plugs which fill the entire line cross section and are conveyed to the collecting space 10 by pressure differences in the line.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sewage (AREA)
  • Tea And Coffee (AREA)
  • External Artificial Organs (AREA)
  • Massaging Devices (AREA)
  • Refuse Collection And Transfer (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Centrifugal Separators (AREA)
  • Cyclones (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Pipeline Systems (AREA)
EP93107035A 1992-05-20 1993-04-30 Système de drainage Expired - Lifetime EP0570739B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4216628A DE4216628A1 (de) 1992-05-20 1992-05-20 Entwässerungsanlage
DE4216628 1992-05-20

Publications (2)

Publication Number Publication Date
EP0570739A1 true EP0570739A1 (fr) 1993-11-24
EP0570739B1 EP0570739B1 (fr) 1997-11-19

Family

ID=6459298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93107035A Expired - Lifetime EP0570739B1 (fr) 1992-05-20 1993-04-30 Système de drainage

Country Status (8)

Country Link
US (1) US5337773A (fr)
EP (1) EP0570739B1 (fr)
JP (1) JPH0650260A (fr)
KR (1) KR930023557A (fr)
AT (1) ATE160407T1 (fr)
CA (1) CA2096489A1 (fr)
DE (2) DE4216628A1 (fr)
PL (1) PL298983A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0701030A1 (fr) * 1994-09-03 1996-03-13 Roediger Anlagenbau GmbH Système de drainage sous vide

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5641245A (en) * 1995-05-22 1997-06-24 Westinghouse Savannah River Company, Inc. Apparatus for passive removal of subsurface contaminants
DE29702366U1 (de) * 1997-02-12 1998-06-10 Sanivac Vakuumtechnik GmbH, 22880 Wedel Vorrichtung zum Absaugen des Inhalts von Abwassersammeltanks
US6467497B1 (en) * 1999-04-21 2002-10-22 Evac International Oy Buffer box for use in a vacuum drainage system
GB2339215B (en) * 1999-08-11 2000-06-07 Flow Vac Systems Limited Vacuum sewerage system
JP2001143803A (ja) 1999-11-16 2001-05-25 Yazaki Corp 突き当て式接触端子とそれを用いたコネクタ
KR100909184B1 (ko) * 2004-03-11 2009-07-23 주식회사 동진쎄미켐 근적외선 분광기를 이용한 리쏘그래피 공정용 조성물의실시간 제어 시스템 및 제어 방법
WO2005112200A1 (fr) 2004-05-17 2005-11-24 Wako Seiki Co., Ltd. Broche conductrice
CN110961017B (zh) * 2019-11-26 2022-09-20 浙江嘉华特种尼龙有限公司 全自动纺丝乳化油供给系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2017188A (en) * 1978-03-20 1979-10-03 Burton Mech Contractors Vacuum sewage system
EP0444646A2 (fr) * 1990-02-28 1991-09-04 Ebara Corporation Structure de pose d'un tuyau d'égout d'aspiration d'un système collecteur d'eaux d'égout par aspiration
EP0445462A1 (fr) * 1990-03-09 1991-09-11 Burton Mechanical Contractors, Inc. Commande d'entrée d'air électrique

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2637962C3 (de) * 1976-08-24 1980-07-10 Electrolux Gmbh, 2000 Hamburg Verfahren zum Abführen der Abwässer von einer Vielzahl von Hausanschlüssen mittels Unterdruck
US4171853A (en) * 1977-07-15 1979-10-23 Burton Mechanical Contractors Vacuum operated sewerage system
DE2908745A1 (de) * 1979-03-06 1980-09-11 Electrolux Gmbh Pneumatisch betriebene entwaesserungsanlage, z.b. vakuum-entwaesserungsanlage
US4373838A (en) * 1981-02-13 1983-02-15 Burton Mechanical Contractors Inc. Vacuum sewage transport system
US4691731A (en) * 1983-12-08 1987-09-08 Burton Mechanical Contractors, Inc. Vacuum sewerage system with in pit breather
DE3680058D1 (de) * 1985-08-27 1991-08-08 Harald Michael Pneumatische steuervorrichtung fuer ein absperrventil einer vakuum-abwasserleitung.
DE8524447U1 (de) * 1985-08-27 1985-12-19 Michael, Harald, 2000 Hamburg Pneumatische Steuervorrichtung für ein Absperrventil einer Vakuum-Abwasserleitung
DE3610867A1 (de) * 1986-04-01 1987-10-08 Harald Michael Verfahren und vorrichtung zum betreiben einer unterdruck-abwasseranlage
DE3727661C2 (de) * 1987-08-19 1996-02-08 Harald Michael Pneumatische Steuervorrichtung für ein Absperrventil an einer Unterdruck-Abwasserleitung
DE3823515A1 (de) * 1988-05-10 1989-11-23 Harald Michael Steuervorrichtung fuer ein durch unterdruck betaetigbares absaugventil an einer vakuumleitung, insbesondere fuer abwasser
JP2546721B2 (ja) * 1989-08-31 1996-10-23 株式会社荏原製作所 真空式汚水収集装置用真空弁の開閉動力取出し構造
US5064314A (en) * 1990-03-09 1991-11-12 Burton Mechanical Contractors, Inc. Vacuum sewerage system with increased lift capabilities having electric air admission controllers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2017188A (en) * 1978-03-20 1979-10-03 Burton Mech Contractors Vacuum sewage system
EP0444646A2 (fr) * 1990-02-28 1991-09-04 Ebara Corporation Structure de pose d'un tuyau d'égout d'aspiration d'un système collecteur d'eaux d'égout par aspiration
EP0445462A1 (fr) * 1990-03-09 1991-09-11 Burton Mechanical Contractors, Inc. Commande d'entrée d'air électrique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0701030A1 (fr) * 1994-09-03 1996-03-13 Roediger Anlagenbau GmbH Système de drainage sous vide

Also Published As

Publication number Publication date
EP0570739B1 (fr) 1997-11-19
KR930023557A (ko) 1993-12-21
DE59307690D1 (de) 1998-01-02
ATE160407T1 (de) 1997-12-15
DE4216628A1 (de) 1993-11-25
JPH0650260A (ja) 1994-02-22
PL298983A1 (en) 1993-12-13
CA2096489A1 (fr) 1993-11-21
US5337773A (en) 1994-08-16

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