EP0332090B1 - Appareil pour aspirer et évacuer un liquide contenant des matières nocives notamment de l'eau sale - Google Patents

Appareil pour aspirer et évacuer un liquide contenant des matières nocives notamment de l'eau sale Download PDF

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Publication number
EP0332090B1
EP0332090B1 EP19890103819 EP89103819A EP0332090B1 EP 0332090 B1 EP0332090 B1 EP 0332090B1 EP 19890103819 EP19890103819 EP 19890103819 EP 89103819 A EP89103819 A EP 89103819A EP 0332090 B1 EP0332090 B1 EP 0332090B1
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EP
European Patent Office
Prior art keywords
pressure
negative
container
outlet
pressure container
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
EP19890103819
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German (de)
English (en)
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EP0332090A2 (fr
EP0332090A3 (fr
Inventor
Horst Kauffeldt
Thomas Kauffeldt
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Individual
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Individual
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Publication of EP0332090A3 publication Critical patent/EP0332090A3/fr
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/38—Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected
    • 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
    • Y10T137/2931—Diverse fluid containing pressure systems
    • Y10T137/3109—Liquid filling by evacuating container

Definitions

  • the invention relates to a device for suction and removal of a liquid containing pollutants, in particular dirty water, with the features from the preamble of claim 1 or 10 .
  • Such devices are known and for example in DE-PS 30 32503 and DE-OS 35 22nd 199.
  • a disadvantage of the known device is that continuous operation during the suction of the liquids is not possible because the vacuum container has to be emptied regularly, the suction process having to be interrupted because the vacuum container has to be ventilated for emptying.
  • the object underlying the invention was to design a device of the type specified above so that the suction of the liquid containing pollutants does not have to be interrupted when the vacuum container is filled, which can be of great importance especially when suctioning large quantities of liquid .
  • the basic idea of the invention is to remedy the difficulty of emptying the vacuum container against the air pressure behind the outlet by maintaining the outflow of the liquid through the outlet at least for a predetermined period of time even when the air pressure is in the vacuum tank by taking care of it that the outlet pressure given by the sum of the hydrostatic pressure of the liquid and the air pressure in the vacuum container is greater than or equal to the air back pressure prevailing behind the outlet, so that a pressure equalization between the area in front of the outlet and the area behind the outlet of the vacuum tank is carried out .
  • the pressure difference between the interior of the negative pressure and the exterior is compensated for by an additional water column, the hydrostatic pressure of which corresponds exactly to the pressure difference that occurs.
  • the device must have a height that corresponds at least to the required height of the water column. Given the magnitude of the suction blowers and vacuum chambers used and the vacuum thus generated in the vacuum container in the order of 10 to 20 kPa, the height of the required water column is in the order of 1 to 2 m.
  • the pressure compensation is established in that the vacuum container is followed by a second container in which a vacuum is generated for certain periods of time allows the liquid to be removed from the vacuum container itself, while the container is placed under atmospheric pressure within other periods, so that the liquid can be removed from the second vacuum container during these periods.
  • the second vacuum tank thus serves as a buffer tank for the removal of the dirty water from the first vacuum tank.
  • the control of the pressure changes in the second vacuum container can either be dependent on the fill level, but it can also be made particularly dependent on the greater pressure fluctuations occurring in the vacuum container itself due to the technique of suction.
  • the liquid containing harmful substances can be sucked off from an object by placing the end of the supply hose on the object, possibly with the interposition of a suction adapter.
  • the inlet opening increases and more air flows in.
  • a quasi-continuous operation is possible in that the device for emptying the vacuum container does not have to be switched off and the vacuum container is emptied via the additional container in the naturally occurring operating phases, in which a lower one takes place in the first vacuum container There is negative pressure.
  • the device shown in FIGS. 1 and 2 is primarily intended for suction and removal of a liquid containing pollutants, for example, dirty water, inside buildings, for example apartments, offices, hospitals, etc., it being assumed that somewhere near the dirty water accumulation there is a functional drain, for example in the form of a toilet.
  • pollutants for example, dirty water
  • buildings for example apartments, offices, hospitals, etc.
  • a functional drain for example in the form of a toilet.
  • the device has a base frame 10 which can be moved on wheels 10.1.
  • a vacuum container 1 is arranged on the base frame 10 and is sealed on its upper side with a lid 1.1.
  • Two vacuum connections 1.2 and 1.3 are led through the cover 1.1, each of which is connected to a suction blower 2 or 3 of known design arranged on the cover 1.1.
  • check valves 1.4 and 1.5 are arranged, which are designed as ball valves and ensure that even with a rapid rise in the water level within the vacuum chamber, no water can be sucked in by the suction fans.
  • a suction mouthpiece of known design can be connected.
  • Spray nozzles 1.7 are also arranged within the interior in the vacuum container 1, to which fresh water or another cleaning liquid can be supplied in a manner not specifically shown for cleaning the interior in the vacuum container 1.
  • the vacuum container 1 opens in its lower part into two outlets 1.8 and 1.9, each of which is followed by a water standpipe 5.1 or 5.2 in the vertical direction.
  • the lower ends of the water level pipes 5.1 and 5.2 are led into the lower area of a collecting container 6, which is also arranged on the base frame 10.
  • the top of the collecting container 6 is closed with a removable cover 6.1.
  • the collecting container 6 On its underside, the collecting container 6 has an outlet tube 6.2 which extends into the container in a funnel shape and on the outside of which a sealing sleeve 6.3 is arranged.
  • a water discharge pipe 6.4 is screwed sealingly, which protrudes with its upper end into the interior of the collecting container, an inlet piece 6.5 being arranged telescopically at this upper end, thereby causing the inlet opening for the water discharge pipe inside of the interior of the collecting container 6 can be set to different heights.
  • two inward-opening check valves 6.6 are arranged in the lid 6.1 of the collecting container 6, which serve to equalize the pressure serve and should prevent the escape of possibly odor-polluting substances from the air from the collecting container 6.
  • spray nozzles 6.7 are also arranged in the collecting container 6, to which fresh water or another cleaning liquid can be supplied in a manner not specifically shown for cleaning the collecting container.
  • the device is arranged above a toilet facility that is used as a waste water drain.
  • the frame 10 is arranged above the toilet bowl 7 in such a way that the outlet pipe 6.2 of the collecting container 6 is led into the outlet opening 7.1 of the toilet bowl 7, the sealing sleeve 6.3 serving for sealing the outlet with respect to the inlet opening in the toilet bowl 7.
  • the part of the device comprising the collecting container 6 and the vacuum container 1 can be arranged on the base frame 10 in a manner that is not specifically shown and can be raised and lowered.
  • the toilet device shown also includes a cistern 8 attached to a wall 9.
  • the suction fans 2 and 3 are switched on, so that the air is sucked out of the interior of the vacuum container 1.
  • Water is then poured into the collecting container 6, in such an amount that, due to the negative pressure generated in the vacuum container 1, the water in the two water level pipes 5.1 and 5.2 rises until the water level of the water column has reached a height W1 at which an equilibrium state, which is explained in more detail below, is established.
  • the water is added to the collecting container 6 in such a way that the water level in the collecting container 6 is also at a level W2 which is above the connection opening of the water standpipes 5.1 and 5.2, but just below the inlet opening into the water discharge pipe 6.4.
  • the sum of the pressure prevailing in the vacuum tank 1 and the hydrostatic pressure of the water columns in the water level pipes 5.1 and 5.2 between heights W2 and W1 corresponds exactly to the external air pressure, the lower part of the water level pipes 5.1 and 5.2 together with the collecting tank 6 acts as a siphon.
  • the dirty water sucked in through the supply hose 4 as a result of the negative pressure in the negative pressure container 1 when the suction mouthpiece is attached enters the negative pressure container 1 so that the water level in the negative pressure container 1 increases.
  • the water level in the collecting tank 6 also rises and in the stationary state just as much water flows out of the collecting tank 6 as is supplied to the vacuum tank 1 via the overflow 6.5.
  • air can flow in through the supply hose 4, so that the pressure in the vacuum container rises and the water level W1 drops accordingly, but at most up to the height W2.
  • dirty water is sucked in again, the old state of equilibrium with the height W1 is restored immediately a.
  • the device can thus be operated continuously and the sucked-up dirty water from the vacuum chamber is discharged into the toilet device 7 during the entire operation.
  • FIGS. 1 and 2 shows a variant of the embodiment according to FIGS. 1 and 2.
  • the vacuum container 11 is closed with a lid 11.1 on which a suction blower 12 is arranged, which sucks the air out of the vacuum container 1 via a vacuum connection 11.2.
  • the vacuum container 11 has a suction connection 11.6 to which the supply hose 14 is connected.
  • the outlet 11.8 of the vacuum container 11 is connected to a collecting container 16 via a water standpipe 15, the inlet opening between the water standpipe 15 and the collecting container 16 being closable by a non-return flap 15.2.
  • Spray nozzles 11.7, 15.1 and 16.7 are arranged in the vacuum tank 11 and in the water standpipe 15 and in the collecting tank 16, to which fresh water can be supplied for cleaning.
  • the top of the collecting container 16 is closed with a removable cover 16.1.
  • the pressure equalization between the collecting container 16 and the outside space takes place via equalizing valves 16.6.
  • the outlet pipe 16.2 of the collecting container 16 is inserted sealingly into the outlet 7.1 of a toilet device 7 by means of a sleeve seal 16.3.
  • the principle of operation of the device according to FIG. 3 is the same as the principle of operation of the device according to FIGS. 1 and 2.
  • the water level W3 in Vacuum tank 11 or in the water standpipe 15 is set so that the above-mentioned equilibrium state between the atmospheric pressure on the one hand and the sum of the pressure in the vacuum tank 11 and the hydrostatic pressure of the water column in the water standpipe 15 is maintained during operation.
  • the check valve closes due to the external air pressure 12.2. With an increase in the water level in the vacuum container 11 by supplying dirty water via the supply hose 14, a corresponding amount of water flows out through the collecting container 16, so that the state of equilibrium is restored.
  • FIGS. 1 to 3 require a certain minimum height, since the length of the water standpipes 5.1, 5.2 and 15 must be selected so that water columns can be generated which generate a sufficient hydrostatic pressure corresponding to the selected vacuum in the vacuum container 1 or 11 .
  • a device for suction and discharge of dirty water is shown with a vacuum container 21 which is sealed on its top by a lid 21.1.
  • a vacuum connection 21.2 is passed through the cover and into the interior of the vacuum container 21, at the free end of which a ball valve 21.4 is arranged.
  • a suction blower 22 arranged on the cover 21.1 is connected to the interior of the vacuum container 21 via the vacuum connection 21.2.
  • In the upper part of the vacuum tank 21 also opens a suction port 21.6, to which a water supply hose 24 is connected.
  • the outlet opening 21.8 arranged at the bottom of the vacuum container 21 is connected via a check valve 21.3 to the upper part of a second vacuum container 26, which in turn has an outlet opening 26.1, which is connected to a dirty water discharge line 28 via a check valve 26.2.
  • the interior of the first vacuum container 21 is connected to the interior of the second vacuum container 26 via a bypass system 25.
  • the bypass system 25 has a branch 25.2 connected to the interior of the second vacuum container 26, which has a controllable 3/2-way valve 27 either with a branch 25.3 opening to the outside atmosphere or with a branch leading to the interior of the first vacuum container 21 25.1 is connectable.
  • FIG. 5 shows a possible embodiment of the controllable 3/2-way valve 27.
  • a piston-like valve disk 27.1 is slidably guided between two valve seats 27.2 and 27.3 in the branches 25.1 and 25.3 aligned with one another.
  • the valve plate 27.1 can be moved together with a guide rod 27.5 against the force of a compression spring 27.6.
  • the end of the compression spring facing away from the valve plate 27.1 is supported on a stop 27.4 through which the guide rod 27.5 is slidably guided.
  • the position of the stop 27.4 can be adjusted in a manner not shown, whereby the pretension of the compression spring 27.6 and thus the switching point of the valve can be adjusted.
  • valve plate 27.2 Under the influence of a strong negative pressure in branch 25.1, valve plate 27.2 can move from the position shown in FIG. 5 to the right until it abuts stop 27.3 and in this position connects branch 25.2 with branch 25.3 opening towards the atmosphere. If the negative pressure in branch 25.1 subsides, valve plate 27.1 finally moves again under the influence of the force of spring 27.6 to the left until it abuts stop 27.2 and the connection between branches 25.1 and 25.2 is thus restored.
  • the operation of the device according to FIGS. 4 and 5 is as follows: To extract dirty water, the suction fan 22 is switched on and the suction mouthpiece, not shown, is placed on the free end of the supply hose 24 on the object to be extracted. The action of the suction fan 22 creates a strong negative pressure in the vacuum container 21, by means of which, as shown above, the valve plate 27.1 is brought into abutment against the valve seat 27.3. In this position, the interior spaces of the two vacuum containers 21 and 26 are separated from one another and the interior space of the second vacuum container 26 is connected to the external atmosphere via the branches 25.2 and 25.3. The dirty water flows under the effect of the negative pressure into the first negative pressure container 21, where it can accumulate up to approximately the height W4.
  • a drain through the outlet 21.8 is initially not possible because the check valve 21.3 closes under the effect of the air pressure prevailing in the second vacuum container 26 and this closing pressure is not overcome by the hydrostatic pressure of the water column in the first vacuum container 21 because of the vacuum prevailing there.
  • the suction mouthpiece If the suction mouthpiece is placed back on the object to be vacuumed, it will be at the top described first state again in that the dirty water is sucked into the first vacuum container 21, from which it cannot drain and by the second vacuum container 26 can be emptied via the check valve 26.2.
  • the advantage of this device over other known suction devices is that the first vacuum chamber 21 never needs to be completely ventilated during operation and the suction fan 22 continues to run.
  • the changeover from the first to the second operating state only takes place by lifting off the suction mouthpiece, a process that occurs from time to time anyway when suctioning dirty water from the floor in the natural course of work.
  • appropriate level indicators which may emit alarm signals, that neither of the two vacuum containers 21 and 26 is filled beyond a certain level
  • the device shown in FIGS. 6, 6a and 7 differs from the device according to FIGS. 4 and 5 essentially in the design of the bypass system and the 3/2-way valve.
  • the suction fan 32 Arranged on the cover 31.1 of the first vacuum container 31 is the suction fan 32, which evacuates the interior of the first vacuum space 31 via the vacuum connection 31.2, which is provided with the ball valve 31.4.
  • the supply hose 34 is connected to the suction connection 31.6 of the vacuum chamber 31.
  • the outlet at the bottom of the first vacuum container 31 is connected via a check valve 31.3 to the interior of the second vacuum container 36, the outlet thereof 36.1 is connected to a waste water discharge line 38 via a check valve 36.2.
  • the interiors of the two vacuum containers 31 and 36 are connected to one another via a bypass system 35, which contains a 3/2-way valve 37.
  • the bypass system has a total of four branches.
  • the first branch 35.1 is connected to the interior in the upper part of the first vacuum container 31, while the second branch 35.2 is connected to the interior in the upper part of the second vacuum container 36.
  • the third branch 35.3 opens to the atmosphere and the fourth branch 35.4 is connected to the interior in the lower part of the first vacuum container 31. In operation, the latter part is filled with the collecting dirty water.
  • the design of the 3/2-way valve is shown in more detail in Fig. 7.
  • a valve piston 37.1 is slidably guided in the straight section of the branch 35.4.
  • the valve piston has two passages 37.2 and 37.3.
  • the two branches 35.1 and 35.2 can be connected to one another via the first passage 37.2, while the branch 35.3 can be connected to the branch 35.2 via the second passage 37.3.
  • the two branches 35.1 and 35.2 are separated from one another, while the branch 35.2 is connected via the connecting branch 35.5 to the branch 35.3 opening into the atmosphere.
  • the two branches 35.1 and 35.2 are connected to one another, while the connecting branch 35.5 is separated from the branch 35.3.
  • the valve piston 37.2 is guided in a sealing manner via ring seals 37.4, 37.5 and 37.6.
  • the operation of the device shown in FIGS. 6 and 7 is as follows: If, after starting up the suction blower 32 and placing a suction mouthpiece connected to the supply hose 34 on the object to be extracted, a strong negative pressure is created in the vacuum container 31, the external atmospheric pressure shifts the valve piston 37.1 into the position shown in FIG. 7.
  • the interiors of the two vacuum containers 31 and 36 are separated from one another and the interior of the second vacuum container 36 is connected to the outside atmosphere via the passage 37.3.
  • the dirty water flows into the first vacuum tank 31, in which it can collect approximately up to the water level W6, and any dirty water contained in the second vacuum tank 36 can flow out via the check valve 36.1.
  • the hydrostatic pressure of the accumulating liquid is sufficient at least from a certain water level in the negative pressure container 31 to move the valve piston 37.1 to the left into the other To move end position in which the two branches 35.1 and 35.2 and thus the interiors of the two vacuum containers 31 and 36 are connected to each other and the entry of air from the atmosphere into the second vacuum container 36 is prevented.
  • the dirty water flows through the check valve 31.3 from the first vacuum tank 31 into the second vacuum tank 36, in which it collects approximately up to the water level W7. Replacing the suction mouthpiece on the object causes the valve 37 to be reversed again and the above-mentioned first operating state begins again.
  • FIG. 6a a variant of this embodiment is shown in FIG. 6a, in which this is not the case.
  • the liquid-carrying branch 35.4 of the bypass system is not connected to the inside of the first vacuum container 31 on the underside of the first vacuum container, but is guided into the upper part of the first vacuum container 31, so that a liquid standpipe 35.6 connects to the branch 35.4, which up to the level of a liquid level W8 with a liquid, for example Water that is filled.
  • the valve 37 is designed in accordance with FIG. 7.
  • the switching point of the valve can be set by the amount of liquid in the liquid standpipe 35.6 that does not change.
  • the valve piston 37.1 is shifted from the right position in FIG. 7 to the left position when the sum of the hydrostatic pressure of the liquid column in the liquid standpipe 35.6 together with the pressure still prevailing in the vacuum container 31 is sufficient to close the piston 37.1 against the atmospheric pressure move.
  • the shift in the opposite direction takes place in the case of a stronger negative pressure due to the atmospheric pressure acting from outside.
  • a sealing piston 35.7 which is displaceable in the pipe and is seated on the liquid surface, is expediently arranged in order to prevent the liquid from splashing out in the event of greater pressure fluctuations.
  • corresponding level indicators emitting signals can be provided for the two vacuum containers.
  • valves instead of the 3/2-way valves shown in FIGS. 5 and 7, in particular electromagnetically controlled valves, which are controlled in a manner not shown by sensors which act on the one in the first vacuum container 31 Pressure and if necessary respond to the liquid levels in the two vacuum tanks.

Landscapes

  • Sanitary Device For Flush Toilet (AREA)
  • Water Treatment By Sorption (AREA)
  • Physical Water Treatments (AREA)
  • External Artificial Organs (AREA)
  • Jet Pumps And Other Pumps (AREA)

Claims (15)

  1. Dispositif pour l'aspiration et l'évacuation d'un liquide contenant des substances nocives, en particulier d'eaux usées comportant un réservoir sous pression négative (1, 11) qui présente sous sa partie supérieure au moins un raccord de pression négative (1.2, 1.3, 11.2) raccordé à une soufflerie aspirante, ainsi qu'un raccord d'aspiration (1.6, 11.6) raccordé à un tuyau d'arrivée et qui présente sur sa partie supérieure, au moins, un échappement (1.8, 11.8) obturable de l'extérieur contre toute admission d'air, en aval duquel, est monté un dispositif d'échappement (5.1, 15), caractérisé en ce que ledit dispositif d'échappement présente une colonne liquide placée dans un tube (5.1, 15) monté en aval de l'échappement (1.8, 11.8) et dont la hauteur est dimensionnée, de telle sorte que la somme de la pression hydrostatique générée par cette colonne et la pression d'air qui règne dans le réservoir de pression négative (1, 11) est au moins égale à la pression de l'air qui règne dans le local extérieur et, en ce que, à l'extrémité extérieure du tube (5..1, 15) est disposé un dispositif d'obturation (6-6.5, 15.2) qui s'ouvre en direction de la sortie du flux.
  2. Dispositif selon la revendication 1, caractérisé en ce que le dispositif d'obturation est un clapet anti-retour ou une vanne anti-retour (15.2).
  3. Dispositif selon la revendication 1, caractérisé en ce que le dispositif d'obturation est un siphon (6-6.5).
  4. Dispositif selon la revendication 3, caractérisé en ce que le réservoir sous pression négative (1) est monté sur un châssis de base (10), sur lequel est disposé, sous le réservoir à pression négative, un collecteur (6) placé sous la pression atmosphérique régnant à l'extérieur et dans lequel débouche le tube (5.1, 5.2) du dispositif d'échappement, tandis que le collecteur (6) présente un orifice d'échappement de liquide (6.4, 6.5) dont l'orifice d'admission est situé au-dessus de l'embouchure du tube (5.1, 5.2).
  5. Dispositif selon la revendication 4, caractérisé en ce que la position en hauteur de l'orifice (6.5) dans le collecteur (6) est réglable.
  6. Dispositif selon la revendication 4 ou 5, caractérisé en ce que, dans le réservoir sous pression négative (1, 11) et/ou dans le collecteur (6, 16), sont disposées des tuyères de rinçage (1.7, 6.7, 11.7, 16.7) auxquelles il est possible d'amener un liquide de nettoyage.
  7. Dispositif selon l'une des revendications 4 à 6, caractérisé en ce que le collecteur (6, 16) est fermé de manière étanche à l'air par une partie supérieure amovible (6.1, 16.1), dans laquelle est disposée au moins une soupape d'équilibrage de la pression (6.6, 16.6) qui s'ouvre vers l'intérieur du collecteur.
  8. Dispositif selon l'une des revendications 4 à 7, caractérisé en ce que l'échappement de liquide (6.5) du collecteur (6) débouche dans un raccord d'échappement (6.2) disposé sur son côté inférieur, ce raccord étant insérable de manière étanche dans l'orifice d'écoulement (7.1) d'une cuvette de toilette (7).
  9. Dispositif selon l'une des revendications 4 à 8, caractérisé en ce que le châssis de base (10) est réalisé en version mobile sur roue (10.1) ou roulette.
  10. Dispositif pour l'aspiration et l'évacuation d'un liquide contenant des substances nocives, en particulier d'eaux usées, comportant un réservoir sous pression négative (21, 31) qui présente sur sa partie supérieure au moins un raccord de pression négative (21.2, 31.2) raccordé à une soufflerie aspirante, ainsi qu'un raccord d'aspiration (21.6, 31.6) raccordé à un tuyau d'arrivée et qui présente sur sa partie inférieure au moins un échappement (21.8, 31.8) obturable de l'extérieur contre toute admission d'air, en aval duquel, est monté un dispositif d'évacuation (25-26-27, 35-36-37), caractérisé en ce que ledit dispositif d'évacuation présente un deuxième réservoir sous pression négative (26, 36) qui est disposé sous le premier réservoir (21, 31) ou à côté de celui-ci et relié à l'échappement de celui-ci (21.8, 31.8) par un clapet de non-retour (21.3, 31.3), ou une soupape de non-retour, tandis que les deux réservoirs sous pression négative (21, 26 et 31, 36) sont reliés mutuellement dans leur partie supérieure par un circuit de dérivation (25, 35) qui contient un organe de commande régulable (27, 37) lequel peut occuper deux positions, dans une première position, l'espace interne du premier réservoir (21, 31) étant relié à l'espace interne du deuxième réservoir (26, 36) et dans une deuxième position, l'espace interne du deuxième réservoir (26, 36) étant relié à l'atmosphère extérieure, la régulation de l'organe de l'organe de commande (27, 37) le faisant passer de l'une des deux positions dans l'autre s'effectuant en fonction de la pression d'air qui règne dans le premier réservoir (21, 31) et/ou du niveau du liquide dans l'un ou dans les deux réservoirs (21, 26 et 31, 36), tandis que le deuxième réservoir (26, 36) présente, dans sa partie inférieure, un échappement (26.1, 36.1) qui est relié par une soupape ou un clapet anti-retour (26.2, 36.2) à une conduite d'évacuation (28, 38).
  11. Dispositif selon la revendication 10, caractérisé en ce que l'organe de commande est réalisé sous la forme d'une vanne (27, 37) régulable à 3/2 voix.
  12. Dispositif selon la revendication 11, caractérisé en ce que l'organe de régulation est une vanne à 3/2 voix régulable de manière électromagnétique et que, dans les réservoirs sous pression négative, sont disposées des sondes pour la saisie de la pression de l'air et/ou du niveau de remplissage dont les signaux d'émission sont transmis à une unité de régulation électrique qui génère un signal de commande lequel est amené à l'élément qui actionne la vanne à 3/2 voix.
  13. Dispositif selon la revendication 11, caractérisé en ce que la vanne à 3/2 voix peut être commandée pneumatiquement directement par la pression d'air qui règne dans le premier réservoir (21, 31) sous pression négative.
  14. Dispositif selon la revendication 11, caractérisé en ce que la régulation de la vanne à 3/2 voix s'effectue de manière hydropneumatique par la somme résultant de la pression d'air qui règne dans le premier réservoir (21, 31) et la pression hydrostatique d'une colonne d'eau.
  15. Dispositif selon l'une des revendications 10 à 14, caractérisé en ce que la régulation de l'organe de commande (27, 37) s'effectue de telle sorte qu'il se trouve placé dans la deuxième position si la pression négative qui règne dans le premier réservoir (21, 31) se situe à un niveau supérieur prédéterminé, tandis qu'il se trouve placé dans la première position, lorsque cette pression négative se situe à un niveau inférieur également prédéterminé.
EP19890103819 1988-03-11 1989-03-04 Appareil pour aspirer et évacuer un liquide contenant des matières nocives notamment de l'eau sale Expired - Lifetime EP0332090B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3808124 1988-03-11
DE19883808124 DE3808124A1 (de) 1988-03-11 1988-03-11 Vorrichtung zur absaugung und abfuehrung einer schadstoff enthaltenden fluessigkeit, insbesondere von schmutzwasser

Publications (3)

Publication Number Publication Date
EP0332090A2 EP0332090A2 (fr) 1989-09-13
EP0332090A3 EP0332090A3 (fr) 1991-07-03
EP0332090B1 true EP0332090B1 (fr) 1994-11-23

Family

ID=6349477

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890103819 Expired - Lifetime EP0332090B1 (fr) 1988-03-11 1989-03-04 Appareil pour aspirer et évacuer un liquide contenant des matières nocives notamment de l'eau sale

Country Status (4)

Country Link
US (1) US5022114A (fr)
EP (1) EP0332090B1 (fr)
AT (1) ATE114228T1 (fr)
DE (2) DE3808124A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2674425B1 (fr) * 1991-03-28 1994-12-02 Nicoll Raccords Plastiques Perfectionnements apportes aux installations d'aspiration domestique.
FR2674598B1 (fr) * 1991-03-28 1993-06-11 Nicoll Raccords Plastiques Vanne hydraulique perfectionnee.
US5133374A (en) * 1991-04-01 1992-07-28 Druding Kevin W Apparatus and method for purging medical instruments and disposing of infectious waste
DK119093A (da) * 1993-10-22 1995-04-23 Joergen Sjoegreen Universalstøvsuger
WO1995018685A1 (fr) * 1994-01-06 1995-07-13 Ricom Engineering Limited Appareil de recuperation de liquides
US6513187B1 (en) * 2000-10-12 2003-02-04 Donald P. Naseth, Sr. Continuous carpet cleaning system
CA2425350A1 (fr) * 2003-04-14 2004-10-14 Peter Alex Robinet d'arret de contenant avec mise a l'air libre
CA2441991C (fr) * 2003-09-19 2012-11-13 Ronald R. Chisholm Dispositif de transvasement de fluide
US20050115606A1 (en) * 2003-10-01 2005-06-02 Chisholm Ronald R. System for effecting liquid transfer from an elevated supply container
US20050210620A1 (en) * 2004-03-29 2005-09-29 Vanorden Scott T Integrated cleaning apparatus and methods
TWI320835B (en) * 2004-08-31 2010-02-21 Huei Tarng Liou Gas injection device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2497435A (en) * 1948-08-24 1950-02-14 Branneman Leonard Steam vacuum cleaner
US2825921A (en) * 1956-02-20 1958-03-11 Armstrong Delay Inc Central vacuum cleaning system
US3048875A (en) * 1960-06-02 1962-08-14 Joseph P Rossi Pneumatic systems
DE3032503C2 (de) * 1980-08-28 1985-05-23 Erhard 6000 Frankfurt Crema Behälter zur Aufnahme von Schadstoffe enthaltenden Medien
CA1190008A (fr) * 1982-09-27 1985-07-09 Conrad Sevigny Dispositif d'evacuation des liquides uses
FR2547189B1 (fr) * 1983-06-09 1987-02-13 Aspiramatic Perfectionnements aux installations de nettoyage central par aspiration
GB8331234D0 (en) * 1983-11-23 1983-12-29 Aberlan Equipment & Service Co Liquid recovery unit
SE447867B (sv) * 1984-08-08 1986-12-22 Waertsilae Oy Ab Kombinerat rengorings- och transportsystem
DE3522199A1 (de) * 1985-06-21 1987-01-02 Thyssen Nordseewerke Gmbh Behaelter zur aufnahme von schadstoffe enthaltenden medien mit hilfe von unterdruck
FR2593081B1 (fr) * 1986-01-17 1988-05-27 Aspiramatic Installation de nettoyage central par aspiration a chasse d'eau.
US4766637A (en) * 1988-01-15 1988-08-30 James Winnicki Wet vacuum apparatus

Also Published As

Publication number Publication date
EP0332090A2 (fr) 1989-09-13
DE3808124A1 (de) 1989-09-21
ATE114228T1 (de) 1994-12-15
DE58908651D1 (de) 1995-01-05
US5022114A (en) 1991-06-11
EP0332090A3 (fr) 1991-07-03

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