EP0570739B1 - Système de drainage - Google Patents

Système de drainage Download PDF

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Publication number
EP0570739B1
EP0570739B1 EP93107035A EP93107035A EP0570739B1 EP 0570739 B1 EP0570739 B1 EP 0570739B1 EP 93107035 A EP93107035 A EP 93107035A EP 93107035 A EP93107035 A EP 93107035A EP 0570739 B1 EP0570739 B1 EP 0570739B1
Authority
EP
European Patent Office
Prior art keywords
vacuum
installation according
section
drainage installation
collecting duct
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.)
Expired - Lifetime
Application number
EP93107035A
Other languages
German (de)
English (en)
Other versions
EP0570739A1 (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
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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 on the ground, and a plurality of intermediate lines connected to it, which can be shut off by independently operable suction valves.
  • the transport in vacuum drainage systems is based on the principle of plug delivery, whereby, as with pneumatic tube, a liquid plug closes the pipe cross-section and due to a pressure difference between the front and rear in the vacuum line is driven forward. If the plug is overtaken by the pushing air during transport by penetrating it through the slower flowing water, a collecting line, e.g. B.
  • a sink or pocket can be formed, in which the water remaining in the adjacent line section collects and again forms a stopper that closes the line cross-section, 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 extracted 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 water volume to be extracted during a suction process and are able to store it for a longer period of time. If the line system is temporarily in a single line or there is only a slight negative pressure overall, the house connections affected do not open temporarily until the situation has normalized again, 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 reliable functioning 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 have hitherto been unavoidable in vacuum drainage systems for the reasons described above.
  • 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 with a substantially horizontal floor over a length of at least about 100 m continuously laid with a slope and is dimensioned so large that its inner cross section is larger than the inner cross section of the Connection lines and partly remains free even when the maximum load is calculated.
  • the new drainage system represents a combination of elements of a conventional freefall drainage system and a vacuum drainage system.
  • the collecting lines with gradient sections are also laid in vacuum drainage systems for local drainage where the wastewater flows by gravity towards the vacuum source. It is essential for the invention, however, that between the vacuum source and the individual suction valves there is a continuously open connection 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 directly via an empty space and without interruption due to sluggish water plugs and water columns with the vacuum of the vacuum source.
  • a vacuum drainage system in which a collecting line laid in flat terrain is laid with rising and falling pipe sections such that the water therein does not form a plug closing the cross section. This is also intended to ensure that there is an uninterrupted free space above the water over the length of the collecting line, through which the system vacuum also reaches the connecting lines further away from the vacuum source.
  • the collecting line of this known drainage system is designed as a vacuum delivery line with a correspondingly small inner cross section of about 8-15 cm in diameter, in which the water is conveyed by air entering suddenly when a connection is opened.
  • 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 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.
  • each length section of a manifold is chosen in the example so that the peak level resulting from the flow rate per unit of time and the line cross section arises only approximately to the center of the pipe at peak load, as in Fig. 2 is shown where the central longitudinal axis of the manifold 14 is designated 18 and the water level 20.
  • 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.

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)
  • Centrifugal Separators (AREA)
  • Cyclones (AREA)
  • Massaging Devices (AREA)
  • External Artificial Organs (AREA)
  • Tea And Coffee (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Pipeline Systems (AREA)
  • Refuse Collection And Transfer (AREA)
  • Sink And Installation For Waste Water (AREA)

Claims (7)

  1. Système de drainage fonctionnant par dépression, comprenant une source de dépression (10, 12) et raccordée à elle, au moins une conduite collectrice (14, 16) s'étendant dans ou sur le sol et à laquelle sont reliées des conduites de raccordement (22) espacées entre elles et qui peuvent être fermées par des soupapes d'aspiration (24) manoeuvrables indépendamment les unes des autres,
    caractérisé en ce que
    la conduite collectrice (14, 16), entre les canalisations de raccordement (22) et la source de dépression (10, 12) s'étend en continu, avec un sol sensiblement horizontal, sur une longueur d'au moins 100 m, avec une pente, sa section interne étant supérieure à celle des conduites de raccordement (22) et restant libre en partie même dans le cas de la charge maximale calculée à l'avance.
  2. Système de drainage selon la revendication 1,
    caractérisé en ce que
    la longueur du collecteur (14,16) est supérieure à 200 m, de préférence supérieure à 400 m.
  3. Système de drainage selon la revendication 1 ou 2,
    caractérisé en ce que
    le collecteur (14, 16) entre la deuxième et la troisième conduite de raccordement (22), comptée depuis l'extrémité externe du collecteur dans le sens d'écoulement, présente un diamètre interne d'au moins 125 mm.
  4. Système de drainage selon une des revendications 1 à 3,
    caractérisé en ce que
    le collecteur (14, 16) a une pente d'au moins 4 à 6 pour mille.
  5. Système de drainage selon une des revendications 1 à 4,
    caractérisé en ce que
    la section interne du collecteur (14, 16) est telle que pour la charge maximale, il n'est rempli qu'à 75 % environ, de préférence à 50 % environ.
  6. Système de drainage selon une des revendications 1 à 5,
    caractérisé en ce que
    la fermeture des soupapes d'aspiration (24) est commandée en fonction de la pression régnant dans la conduite de raccordement (22) .
  7. Système de drainage selon une des revendications 1 à 6,
    caractérisé en ce qu'
    au moins une des conduites de raccordement (22) présente une tuyauterie montante dépassant 10 m de haut.
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 EP0570739A1 (fr) 1993-11-24
EP0570739B1 true 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)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431486A1 (de) * 1994-09-03 1996-03-07 Roediger Anlagenbau Unterdruck-Abwasseranlage
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
JP4580386B2 (ja) 2004-05-17 2010-11-10 株式会社和光精機 導電ピン
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4171853A (en) * 1977-07-15 1979-10-23 Burton Mechanical Contractors Vacuum operated sewerage system

Family Cites Families (14)

* 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
US4179371A (en) * 1978-03-20 1979-12-18 Burton Mechanical Contractors, Inc. Vacuum sewage 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
JPH03250128A (ja) * 1990-02-28 1991-11-07 Ebara Corp 真空式汚水収集装置の真空汚水管敷設構造
US5044836A (en) * 1990-03-09 1991-09-03 Burton Mechanical Contractors, Inc. Electric air admission controller
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4171853A (en) * 1977-07-15 1979-10-23 Burton Mechanical Contractors Vacuum operated sewerage system

Also Published As

Publication number Publication date
US5337773A (en) 1994-08-16
JPH0650260A (ja) 1994-02-22
PL298983A1 (en) 1993-12-13
DE59307690D1 (de) 1998-01-02
KR930023557A (ko) 1993-12-21
ATE160407T1 (de) 1997-12-15
EP0570739A1 (fr) 1993-11-24
CA2096489A1 (fr) 1993-11-21
DE4216628A1 (de) 1993-11-25

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