EP0328457B1 - Vakuum-Entwässerungsverfahren, Vakuum-Entwässerungssystem und Verzögerungs-Kontrollsystem, geeignet für ein solches System - Google Patents

Vakuum-Entwässerungsverfahren, Vakuum-Entwässerungssystem und Verzögerungs-Kontrollsystem, geeignet für ein solches System Download PDF

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Publication number
EP0328457B1
EP0328457B1 EP89400360A EP89400360A EP0328457B1 EP 0328457 B1 EP0328457 B1 EP 0328457B1 EP 89400360 A EP89400360 A EP 89400360A EP 89400360 A EP89400360 A EP 89400360A EP 0328457 B1 EP0328457 B1 EP 0328457B1
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EP
European Patent Office
Prior art keywords
atmospheric pressure
tank
pressure
chamber
pipe
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Expired - Lifetime
Application number
EP89400360A
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English (en)
French (fr)
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EP0328457A1 (de
Inventor
Pierre Barriquant
Jean-Pierre Regnier
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TECTRA A RESPONSABILITE Ltee Ste
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TECTRA A RESPONSABILITE Ltee Ste
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Application filed by TECTRA A RESPONSABILITE Ltee Ste filed Critical TECTRA A RESPONSABILITE Ltee Ste
Priority to AT89400360T priority Critical patent/ATE72467T1/de
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    • 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

Definitions

  • the present invention relates to a vacuum sanitation system. Such systems are intended to intermittently transport a quantity of waste inside a vacuum pipe.
  • the pipes are generally composed of a pipe maintained at a low pressure and generally called vacuum pipe.
  • This pipe connects a temporary storage tank either to an evacuation member or to another temporary storage tank.
  • the vacuum pipe is connected to the lower part of the temporary supply tank and to the upper part of the supply tank.
  • the vacuum source is located downstream of the assembly studied.
  • the vacuum pipe comprises in the vicinity of the temporary initial storage tank a drain valve called the main drain valve allowing when the temporary initial storage tank is partially filled to introduce a quantity of air determined at the atmospheric pressure inside the pipeline, thus causing the suction of a determined quantity of waste and its transfer to the provisional storage tank of arrival.
  • Air intake through the main drain valve is controlled when the accumulation of waste in the initial provisional storage tank reaches a certain level. This level is identified using a pressure detector which acts on a sensor controller controlling the opening of the main drain valve.
  • Document DE-A-2637962 furthermore proposes the control of ventilation devices under the double condition that a certain level of water height is reached and that it is maintained for a determined period.
  • pressure transport lines in which the control of ventilation systems is actuated at fixed time intervals is mentioned. The operating conditions of these pressure lines are different from those of reduced pressure lines.
  • the object of the present invention is to provide a sanitation process, the system necessary for its implementation and the timer controller allowing greater spacing of the temporary storage tanks than that authorized by the systems known from the prior art. .
  • the vacuum sanitation method of the invention is of the type in which the transport of a given quantity of waste is produced in a pipe under reduced pressure from a first temporary storage tank to a second tank. temporary or evacuation device by the introduction of air at atmospheric pressure in the vicinity of the first tank when this first tank is filled to a given level.
  • air at atmospheric pressure is also introduced at least at a point distant from the first reservoir at constant time intervals.
  • the invention also relates to a vacuum sanitation system. intended for intermittently transporting a determined quantity of waste of the type comprising a vacuum pipe connecting to a first temporary storage tank to a second temporary storage tank or to a discharge device, a main drain valve controlled by a sensor controller and ensuring, by introducing air into the vacuum pipe, the transport of waste.
  • a first temporary storage tank and a second remote temporary storage tank comprises at distances approximately equally distributed between the tanks at least one secondary drain valve whose opening is controlled at fixed time intervals by a timer controller operating without any other energy input than that available in the vacuum pipe.
  • the timer controller intended to produce the opening of the secondary drainage valve of the sanitation system is also part of the invention. It controls a pressure variation in the head of the drain valve allowing the opening of the latter. Its energy source is constituted by the vacuum existing in the vacuum pipe and it ensures the opening at a constant time interval of the secondary drain valve.
  • FIGS. 2, 3, 4 the zones at atmospheric pressure are filled with crosses, the zones at pressure of the pipeline are filled with dots and the zones at intermediate pressure are hatched.
  • the vacuum sanitation process of the invention allows the transport of a given quantity of waste from a first temporary storage tank 1 to a second temporary storage tank 2.
  • This transport is obtained by the introduction of a quantity of air determined at atmospheric pressure in the vicinity of the first storage tank in the vacuum pipe 3 connecting the first temporary storage tank to the second.
  • the introduction of air at atmospheric pressure is triggered when the level of waste inside the first temporary tank 1 has reached a level chosen in advance.
  • a predetermined quantity of air is also introduced at atmospheric pressure inside the pipeline at a substantially equal distance from the two temporary storage tanks.
  • This introduction of air is carried out at constant determined time intervals. experience has shown that this introduction of additional air allows the transport of waste over a substantially greater distance when the other conditions are kept constant and with better reliability.
  • the introduction of this new process phase can be carried out with relatively minimal adjustments to the entire installation and therefore for entirely satisfactory economic conditions.
  • the introduction of air at atmospheric pressure at a point distant from the tank is obtained exclusively from the energy taken from the pipe.
  • the invention also relates to the vacuum sanitation system allowing the implementation of the method described above.
  • This sanitation system is therefore intended to intermittently transport a determined quantity of waste. It is of the type comprising a first temporary storage tank 1 connected to a second temporary storage tank 2 by a vacuum pipe 3.
  • the first temporary storage tank is supplied by an inlet pipe 4.
  • the temporary storage tank d arrival 2 leads to a departure pipe 5.
  • a drain valve 6 is connected to the vacuum pipe 3.
  • This drain valve is controlled by the controller 7 which is itself actuated by the pressure sensor 8 placed inside the first storage tank provisional.
  • the pressure sensor 8 generates the action of the controller 7 which controls the opening of the valve 6 for a fixed duration.
  • a determined volume of air at atmospheric pressure is introduced into the vacuum pipe 3 resulting in a corresponding determined volume of waste from the starting temporary storage tank 1 to the arriving temporary storage tank 2.
  • the vacuum pipe 3 is further provided with a secondary drain valve 9, the opening of which is controlled by a timer controller 10.
  • the valves 6 and 9 are of the same type but whereas, as we have seen, opening of the valve 6 is controlled by the pressure sensor 8 as a function of the level of waste in the initial temporary storage tank 1, the opening of the valve 9 is controlled at regular time intervals by the timer controller 10.
  • timer controller 10 assembly is autonomous, which means that it requires no external energy supply its only source of energy being the vacuum existing in the vacuum pipe 3. It is therefore the use of the pressure difference existing between the atmosphere and the pipe 3 which ensures the operation of the timer controller 10.
  • the timer controller 10 includes an adjustable timing device during installation of the system. Indeed, the duration of the time interval separating two opening cycles of the valve 9, as well as the amount of air at atmospheric pressure introduced into each of these cycles in the vacuum pipe 3 depends on the set of parameters for the sanitation system. It depends in particular on the distance between the two temporary storage tanks 1, 2 and their difference in height. This adjustment is therefore made when the installation is started up by an action on the flow limiter 24.
  • the drain valves 6 and 9 are well known and do not in themselves form part of the invention. They comprise a membrane separating two chambers, one maintained at atmospheric pressure and the other, called the valve head, which can alternatively be brought to atmospheric pressure or to the pressure of the vacuum pipe.
  • the controller 7 controlling the opening of the main drain valve 6 as a function of the pressure existing in the initial temporary storage tank 1 is also known. It is represented by the assembly 34 in FIGS. 2, 3, 4. It comprises a first connector 11 connected to the head of the main valve, a second connector 12 connected to the atmosphere and a third connector 13 connected to the pipe under vacuum 3.
  • the double-sided valve 14 allows the connection 11 to be placed in communication with the connection 12 or the connection 13 alternately, thereby enabling the valve head to change to atmospheric pressure at the pressure of the vacuum pipe 3.
  • the double-sided valve 14 is controlled by means of a piston 15 by the membrane 16 which separates a first chamber A from a second chamber B.
  • Chamber A is connected to the connector 13 via a calibrated orifice adjustable by a screw of the POINTEAU screw type 17 the chamber B is directly connected to this same fitting 13.
  • the chamber A is capable, in the case not shown of the controller 7, of communicating with the atmosphere through the orifice 18, the opening is obtained by moving the lever 19.
  • the action of the lever 19 is controlled by the pressure sensor 8 placed in the temporary starting tank 1.
  • the operation of the controller is as follows: when the pressure in the temporary provisional storage tank reaches the predetermined threshold fixed, the tilting of the lever 19 causes the release of the orifice 18 and therefore the atmospheric pressure of the chamber A.
  • This setting to atmospheric pressure causes a deformation of the membrane 16 which causes, by the action of the double-sided valve 14, the connection of the connector 11 connected to the valve head with the connector 13 connected to the vacuum pipe 3.
  • the pressure in the valve head decreases leading to the opening of the main valve valve and therefore the introduction of air at atmospheric pressure into the vacuum pipe 3.
  • the waste is then entrained and the level in the storage tank provisional departure decreases resulting in the decrease of the pressure detected by the detector 8 and therefore the closing of the orifice 18.
  • the chamber A returns to a pressure identical to that of the chamber B.
  • the double-sided valve 14 then again ensures the communication of the connector 12 and of the connector 11 that is that is to say that the chamber of the valve head is again brought to atmospheric pressure causing the closure of the valve of the main valve.
  • the amount of air at atmospheric pressure introduced into the vacuum pipe 3 depends on the time during which the valve of the main valve has remained open, that is to say the time which was necessary to put chamber A at the same pressure as chamber B.
  • the volume of air at atmospheric pressure introduced into the vacuum pipe 3 therefore ultimately depends on the setting of the calibrated orifice 18.
  • the timer controller 10 of the invention is intended to produce the opening of a secondary drain valve 9 by controlling the pressure variation in the head of the drain valve.
  • the source is constituted by the vacuum existing in the vacuum pipe 3 and it ensures the opening at a constant time interval of the secondary valve 9.
  • This timer controller implements a set called controller 34 of a type similar to that used for controlling the opening of the main valve 6.
  • This assembly is constituted by the chambers A and B, the membrane 16 which separates them, the piston 15 and the double-sided valve 14 which ensures the communication of the connector 11 either with the connection 12, either with connection 13, of the lever 19 and of the orifice 18.
  • the control of this timer controller is not obtained from a pressure sensor such as for example the sensor 8 used for controlling the main valve but from a timing system. It is an important element of the invention to have provided a pneumatic time delay system whose power supply can be obtained exclusively from the vacuum contained in the main vacuum pipe 3.
  • the time controller 10 of the invention comprises an axis 20, the movement of which causes the lever 19 to tilt, releasing or obstructing the orifice 18. This axis 20 is integral with a membrane 25 separating two chambers C and D.
  • the chamber C is kept at the atmospheric pressure, the chamber D being alternately brought to atmospheric pressure and then brought into contact with the vacuum pipe 3 by means of a flow limiter 24 adjustable by means of the link 38.
  • the chamber D is brought to atmospheric pressure by the action of the valve 21. It can connect the chamber D ′ with the atmosphere by the pipe 35. It is itself controlled by an axis 22 integral with 'a flexible membrane 23 separating two chambers E and C.
  • the chamber C being in direct communication with the outside via the channel 36 is maintained at atmospheric pressure.
  • Chamber E being connected to connection 11 of the timer controller, via line 37 at the valve head. The pressure inside this chamber E therefore varies in the same way as that inside the head of valve between atmospheric pressure and vacuum pressure present in the vacuum pipe 3.
  • the operation of the timer controller is therefore as follows: starting from the situation in which the main valve has just closed as shown in FIG. 2, the pressure in the main valve head is atmospheric pressure which is therefore also found in the chamber E. The pressure is therefore the same in chambers E and C, the valve 21 closes the communication between the atmosphere (via the connector 35) and the chamber D ′. Via the adjustable flow limiter 24, the chamber D is therefore connected to the vacuum pipe 3 and, starting from atmospheric pressure, its pressure decreases.
  • This operation produces, as we have seen during the explanation of the operation of the controller 34, an opening of the valve for a time determined by the adjustment of the calibrated orifice 18.
  • This cycle occurs each time the pressure in the chamber D initially at atmospheric pressure drops below a predetermined threshold. The time required to obtain these conditions depends on the setting of the flow limiter 24 and the volume of the chamber D ′. In order to increase this volume, it is preferably placed in communication with a reservoir 26.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Control Of Fluid Pressure (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Centrifugal Separators (AREA)
  • Physical Water Treatments (AREA)
  • Sewage (AREA)

Claims (11)

1. Verfahren zur Abwasserableitung, bei dem der Transport einer vorbestimmten Abfallmenge in einer Kanalisation, die unter geringerem Druck als Atmosphärendruck steht, von einem provisorischen Ausgangs-Sammelbehälter zu einem Zugangs-Sammelbehälter durch Zufuhr von Luft mit Atmosphärendruck in die Kanalisation nahe dem provisorischen Ausgangs-Sammelbehälters bewirkt wird, sobald dieser Ausgangs-Sammelbehälter bis zu einer gegebenen Höhe gefüllt ist, dadurch gekennzeichnet, daß Luft unter Atmosphärendruck an mindestens einer vom Ausgangs-Sammelbehälter entfernt liegenden Stelle, bspw. an einer vom Ausgangs- und Zugangs-Sammelbehälter ungefähr gleich weit entfernten Stelle und nur in konstanten Zeitabständen gleichmäßig zugeführt wird und daß diese Luftzufuhr ohne Zuführung von anderer Energie bewirkt wird als der, die durch die Ausnutzung des Differenzdrucks zwischen dem Inneren der Kanalisation und dem äußeren Atmosphärendruck entsteht.
2. System zur bewasserableitung zum intermittierenden Transportieren einer vorbestimmten Abfallmenge, mit einer unter geringerem Druck als dem Atmosphärendruck stehenden Kanalisation (3), die einen provisorischen Ausgangs-Sammelbehälter (1) mit einem provisorischen Zugangs-Sammelbehälter (2) verbindet, und mit einem Haupt-Abflußventil (6), das von einem Füllstandswächter (7) gesteuert ist und den befalltransport durch Zufuhr von Luft unter Atmosphärendruck in die Kanalisation (3) sicherstellt, dadurch gekennzeichnet, daß es mindestens ein sekundäres Abeflußventil (9) aufweist, dessen Öffnung nur in konstanten Zeitabständen von einer Kontroll-Verzögerungsvorrichtung (10) gesteuert ist, welche ohne Zufuhr anderer als derjenigen Energie funktioniert, die durch die Ausnutzung des Differenzdrucks zwischen dem Inneren der Kanalisation und dem äußeren Atmosphärendruck entsteht.
3. System zur Abwasserableitung nach Anspruch 2, dadurch gekennzeichnet, daß das oder die sekundäre(n) Abflußventil(e) (9) vom Ausgangs-Sammelbehälter (1) entfernt, bspw. in gleichen beständen von bzw. zwischen dem Sammelbehälter und dem Zugangs-Sammelbehälter (2) angeordnet ist bzw. sind.
4. System zur Abwasserableitung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Verzögerungs-Kontrollvorrichtung (10) eine Verzögerungseinrichtung enthält, die bei der Installation des Systems unter anderem in Abhängigkeit vom Abstand zwischen dem provisorischen Sammelbehälter und dem Abflußorgan und von Gefälle des Systems regelbar ist.
5. System zur Abwasserableitung nach einen der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die Verzögerungs-Kontrollvorrichtung (10) ein Kontrollelement (34) enthält, welches die Verbindung des sekundären Abflußventils (9) mit der Atmosphäre durch das Kippen eines mit einer Rückstellfeder versehenen Hebels (19) steuert, wobei das Kippen des Hebels (19) durch die Verlagerung einer mit einer Membran (25) verbundenen Achse (20) herbeigeführt ist, welche Membran (25) eine unter Atmosphärdruck gehaltene Kammer (C) von einer Kammer (D) trennt, die mit Luft auf Atmosphärendruck bringbar und dann mit der Kanalisation (3) verbindbar ist, bis sie die Bewegung der Achse (20) bewirkt.
6. System zur Abwasserableitung nach Anspruch 5, dadurch gekennzeichnet, daß die Kammer (D) auf Atmopshärendruck gebracht ist, wenn der Druck in Kopf des sekundären Abflußventils (9) niedriger ist als ein Referenzdruck, wodurch das sekundäre Abflußventil (9) betätigt ist.
7. System zur Abwasserableitung nach Anspruch 6, dadurch gekennzeichnet, daß die Kammer (D) auf Atmosphärendruck durch Öffnen einer Klappe (21), die von einer Membran (22) gesteuert ist, welche sich zwischen einer auf Atmosphärendruck gehaltenen Kammer (C) und einer mit dem Ventilkopf in Verbindung stehenden Kammer (E) befindet, gebracht ist.
8. System zur Abwasserableitung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, daß die Kammer (D) mit einem Luftraum (26) verbunden ist.
9. System zur Abwasserableitung nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, daß die zwischen der Kanalisation (3) und der Kammer (D) hergestellte Verbindung einen regulierbaren Durchflußbegrenzer (24) enthält, der die Einregulierung des Zeitabstands zwischen zwei Öffnungsperioden des sekundären Abflußventils (9) ermöglicht.
10. System zur Abwasserableitung nach einem der Ansprüche 5 bis 9, dadurch gekennzeichnet, daß die Kontrollvorrichtung eine Einrichtung (17) zur Regulierung der Öffnungsdauer des sekundären Abflußventils (9) enthält.
11. System zur Abwasserableitung nach einem der Ansprüche 5 bis 10, dadurch gekennzeichnet, daß es ein Gehäuse besitzt, das aus unabhängigen Einzelteilen (30, 31) zusammengesetzt ist, die aneinandergedrückt und von verschraubten Gewindespindeln (32, 33) durchzogen verbunden sind.
EP89400360A 1988-02-08 1989-02-08 Vakuum-Entwässerungsverfahren, Vakuum-Entwässerungssystem und Verzögerungs-Kontrollsystem, geeignet für ein solches System Expired - Lifetime EP0328457B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89400360T ATE72467T1 (de) 1988-02-08 1989-02-08 Vakuum-entwaesserungsverfahren, vakuumentw|sserungssystem und verzoegerungskontrollsystem, geeignet fuer ein solches system.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8801437 1988-02-08
FR8801437A FR2626916B1 (fr) 1988-02-08 1988-02-08 Procede d'assainissement sous vide, systeme d'assainissement sous vide et controleur temporisateur destine a ce systeme

Publications (2)

Publication Number Publication Date
EP0328457A1 EP0328457A1 (de) 1989-08-16
EP0328457B1 true EP0328457B1 (de) 1992-02-05

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ID=9363039

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89400360A Expired - Lifetime EP0328457B1 (de) 1988-02-08 1989-02-08 Vakuum-Entwässerungsverfahren, Vakuum-Entwässerungssystem und Verzögerungs-Kontrollsystem, geeignet für ein solches System

Country Status (4)

Country Link
EP (1) EP0328457B1 (de)
AT (1) ATE72467T1 (de)
DE (1) DE68900805D1 (de)
FR (1) FR2626916B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0388621A (ja) * 1989-08-31 1991-04-15 Ebara Corp 真空式汚水収集装置及び該装置用真空弁コントローラ
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
US5259427A (en) * 1992-01-31 1993-11-09 Burton Mechanical Contractors, Inc. Package system for collection-transport of waste liquids
US6467497B1 (en) * 1999-04-21 2002-10-22 Evac International Oy Buffer box for use in a vacuum drainage system
CN100460612C (zh) * 2007-02-12 2009-02-11 傅仲萼 处理生活垃圾卫生填埋场地下水的网状盲沟导排法
US10001787B2 (en) * 2014-06-02 2018-06-19 Aqseptence Group, Inc. Controller for vacuum sewage system

Family Cites Families (4)

* 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
US4179371A (en) * 1978-03-20 1979-12-18 Burton Mechanical Contractors, Inc. Vacuum sewage system
US4373838A (en) * 1981-02-13 1983-02-15 Burton Mechanical Contractors Inc. Vacuum sewage transport system

Also Published As

Publication number Publication date
FR2626916A1 (fr) 1989-08-11
EP0328457A1 (de) 1989-08-16
FR2626916B1 (fr) 1992-10-30
DE68900805D1 (de) 1992-03-19
ATE72467T1 (de) 1992-02-15

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