FR2914916A1 - Liquid i.e. milk, tanker, has valve arranged on aspiration pipe between controller and ejector, where controller closes valve and starts pump during detection of high level, and opens valve and stops pump during detection of low level - Google Patents

Liquid i.e. milk, tanker, has valve arranged on aspiration pipe between controller and ejector, where controller closes valve and starts pump during detection of high level, and opens valve and stops pump during detection of low level Download PDF

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Publication number
FR2914916A1
FR2914916A1 FR0702620A FR0702620A FR2914916A1 FR 2914916 A1 FR2914916 A1 FR 2914916A1 FR 0702620 A FR0702620 A FR 0702620A FR 0702620 A FR0702620 A FR 0702620A FR 2914916 A1 FR2914916 A1 FR 2914916A1
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France
Prior art keywords
ejector
valve
pump
controller
during detection
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Granted
Application number
FR0702620A
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French (fr)
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FR2914916B1 (en
Inventor
Herve Gigleux
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G Magyar Fr
Original Assignee
E T A SA
E T A SA
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Priority to FR0702620A priority Critical patent/FR2914916B1/en
Publication of FR2914916A1 publication Critical patent/FR2914916A1/en
Application granted granted Critical
Publication of FR2914916B1 publication Critical patent/FR2914916B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/22—Tank vehicles
    • B60P3/224—Tank vehicles comprising auxiliary devices, e.g. for unloading or level indicating
    • B60P3/2245—Adaptations for loading or unloading
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/22—Tank vehicles
    • B60P3/224—Tank vehicles comprising auxiliary devices, e.g. for unloading or level indicating
    • B60P3/225—Adaptations for pumps or valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
    • F04D9/06—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock of jet type
    • F04D9/065—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock of jet type the driving fluid being a gas or vapour, e.g. exhaust of a combustion engine

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Abstract

The tanker has an ejector (12) including a compressed air supplying pipe (14) communicated with a compressed air compartment (2). A level controller (8) controls starting of a pump (4) and a stop valve (5). The ejector has an aspiration pipe (7) communicated with a body of the pump, and the controller is assembled on the aspiration pipe. The valve is arranged, on the aspiration pipe, between the controller and the ejector. The controller closes the valve and starts the pump during detection of a high level, and opens the valve and stops the pump during detection of a low level.

Description

CAMION-CITERNE A POMPAGE AMORCE PAR EJECTEURTANK TRUCK WITH EJECTOR PRIMER

La présente invention se rapporte aux camions-citernes destinés à contenir des liquides et notamment 5 destinés au ramassage du lait. On connaît déjà par FR-A-0005140 un camion-citerne comprenant une citerne à laquelle arrive une tuyauterie. Cette tuyauterie est munie de l'aval vers l'amont successivement d'une pompe principale et d'une vanne 10 d'arrêt. La tuyauterie débouche au bas d'un bac dont le haut comporte un tuyau d'entrée. Le bac communique par le haut avec un dispositif de mise sous vide qui est constitué d'une pompe à vide. Pour ramasser du lait, on utilise une canne suceuse mettant le tank à la ferme en 15 communication avec le bac tout en faisant le vide dans le bac à l'aide d'une pompe à vide ce qui permettra d'amorcer la pompe principale, on ouvre la vanne d'arrêt et on met la pompe principale en action progressivement, de sorte que du lait est pompé dans la citerne. 20 Cet agencement est coûteux et compliqué. L'invention vise un camion-citerne bien plus simple à fabriquer. L'invention a donc pour objet un camion-citerne comprenant une citerne à laquelle arrive une tuyauterie de refoulement d'une pompe. Le tuyau d'aspiration de la 25 pompe est raccordé à une canne suceuse. Le conduit d'alimentation en air comprimé d'un éjecteur communique avec la servitude en air comprimé du camion. Un contrôleur de niveau commande la mise en route de la pompe ainsi qu'une vanne d'arrêt. Suivant l'invention le 30 conduit d'aspiration de l'éjecteur communique avec le corps de pompe, le contrôleur de niveau est monté sur le conduit d'aspiration de l'éjecteur et la vanne d'arrêt est montée sur le conduit d'aspiration de l'éjecteur entre le contrôleur de niveau et l'éjecteur, le contrôleur de niveau étant tel qu'il ferme la vanne d'arrêt et met la pompe en marche lorsqu'il détecte un niveau haut et ouvre la vanne d'arrêt et arrête la pompe lorsqu'il détecte un niveau bas.  The present invention relates to tankers for containing liquids and especially for collecting milk. Already known from FR-A-0005140 a tanker truck including a tank to which a pipe arrives. This pipe is provided with the downstream upstream successively of a main pump and a stop valve. The piping leads to the bottom of a tank whose top has an inlet pipe. The tank communicates from the top with a vacuum device which consists of a vacuum pump. To collect milk, a suction cane is used, putting the tank on the farm in communication with the tank while evacuating the tank with a vacuum pump, which will make it possible to prime the main pump. the stop valve is opened and the main pump is gradually activated, so that milk is pumped into the tank. This arrangement is expensive and complicated. The invention is a tanker truck much simpler to manufacture. The invention therefore relates to a tanker truck comprising a tank to which arrives a delivery pipe of a pump. The suction pipe of the pump is connected to a suction cane. The duct supplying compressed air to an ejector communicates with the compressed air supply of the truck. A level controller controls the startup of the pump and a shut-off valve. According to the invention, the suction duct of the ejector communicates with the pump body, the level controller is mounted on the suction duct of the ejector and the shut-off valve is mounted on the duct. suction of the ejector between the level controller and the ejector, the level controller being such that it closes the shut-off valve and starts the pump when it detects a high level and opens the shut-off valve and stops the pump when it detects a low level.

On se dispense maintenant de tous les bacs, globes intermédiaires et autres éléments entre l'éjecteur et la canne suceuse. Il est prévu de préférence un circuit de temporisation suivant un perfectionnement la vanne d'arrêt s'ouvre lorsque le contrôleur de niveau détecte un niveau bas. Cela permet de commander automatiquement la mise en marche de l'éjecteur en cas d'opération de ramassage du lait. De préférence, la pompe et l'éjecteur sont mis hors circuit après une temporisation fournie par un circuit électronique, qui débute à l'instant ou l'éjecteur se met en route. L'arrêt de l'aspiration du lait dans la citerne est commandé ainsi d'une manière automatique. Suivant un perfectionnement, une vanne à deux voies est montée sur le conduit d'évacuation de l'air comprimé de l'éjecteur, de manière à ce que ce conduit débouche au choix à l'extérieur, ou de préférence directement, dans la tuyauterie de refoulement du corps de pompe. On peut ainsi introduire du produit de nettoyage par la canne suceuse et lui faire traverser successivement la pompe, le conduit d'aspiration de l'éjecteur, la vanne d'arrêt, l'éjecteur, la vanne à deux voies et finalement la tuyauterie, ce qui permet d'avoir un nettoyage complet sans aucun démontage.  We now dispense with all the bins, intermediate globes and other elements between the ejector and the suction cane. A timing circuit is preferably provided in an improvement. The stop valve opens when the level controller detects a low level. This allows to automatically control the start of the ejector in case of milk collection operation. Preferably, the pump and the ejector are switched off after a delay provided by an electronic circuit, which starts at the instant the ejector starts. Stopping the suction of the milk in the tank is thus controlled automatically. According to an improvement, a two-way valve is mounted on the discharge duct of the compressed air of the ejector, so that this duct opens out optionally, or preferably directly, in the piping discharge of the pump body. It is thus possible to introduce cleaning agent by the suction cane and to successively pass it through the pump, the ejector suction duct, the stop valve, the ejector, the two-way valve and finally the piping, which allows to have a complete cleaning without any disassembly.

La figure unique du dessin annexé illustre l'invention. Un camion-citerne suivant l'invention est schématisé par sa citerne 1 et par sa servitude 2 en air comprimé. A la citerne 1 arrive une tuyauterie 3 munie dans le sens sortant de la citerne 1 d'une pompe 4 et d'une tuyauterie souple. A la tuyauterie à l'aspiration de la pompe 4 est connecté un tuyau souple 10 auquel peut être raccordée une canne suceuse 11 destinée à être plongée dans un bidon de lait dont on souhaite que le lait soit transféré dans la citerne 1. Un contrôleur 8 de niveau communique par un conduit 7 d'aspiration, qui part d'un piquage 6 sur la pompe 4 et sur lequel est montée une vanne d'arrêt 5, avec un éjecteur 12. L'éjecteur a un conduit d'évacuation 15 et un conduit 14 d'alimentation en air comprimé qui communique avec la servitude 2 et sur lequel est montée une vanne 19. Le contrôleur de niveau 8 commande la mise en marche de la pompe 4 par une ligne 21 et la vanne 5 par une 15 ligne 18. Le camion-citerne suivant l'invention fonctionne de la manière suivante. Au début, la pompe 4 est arrêtée, les vanne 5 et 19 sont fermées.  The single figure of the accompanying drawing illustrates the invention. A tanker truck according to the invention is shown schematically by its tank 1 and by its servitude 2 in compressed air. At the tank 1 arrives a pipe 3 provided in the outgoing direction of the tank 1 of a pump 4 and a flexible pipe. At the suction pipe of the pump 4 is connected a hose 10 to which can be connected a suction rod 11 to be immersed in a milk can which is desired that the milk is transferred into the tank 1. A controller 8 level communicates via a suction pipe 7, which starts from a tapping 6 on the pump 4 and on which is mounted a stop valve 5, with an ejector 12. The ejector has a discharge conduit 15 and a conduit 14 for supplying compressed air which communicates with the servitude 2 and on which a valve 19 is mounted. The level controller 8 controls the start-up of the pump 4 by a line 21 and the valve 5 by a line 18. The tank truck according to the invention operates in the following manner. At the beginning, the pump 4 is stopped, the valves 5 and 19 are closed.

20 Le camion-citerne étant près d'un bidon, on met la canne 11 dans le bidon et on ouvre les vannes 5 et 19. En raison de l'air comprimé qui passe dans l'éjecteur 12, il se crée un vide dans le corps de la pompe 4, en sorte que du lait y est aspiré.20 The tanker being close to a can, we put the rod 11 in the can and opens the valves 5 and 19. Because of the compressed air that passes into the ejector 12, there is a vacuum in the body of the pump 4, so that milk is sucked therein.

25 Lorsque le lait atteint un certain niveau haut, le contrôleur 8 commande la mise en route de la pompe 4 par l'intermédiaire d'une ligne 17 et la fermeture de la vanne 5 par une ligne 18. Le lait est pompé du bidon dans la citerne 1.When the milk reaches a certain high level, the controller 8 controls the start-up of the pump 4 via a line 17 and the closing of the valve 5 by a line 18. The milk is pumped from the can in the tank 1.

30 Lorsqu'il n'y a plus de lait dans le bidon, le niveau du liquide dans le corps de la pompe 4 revient en dessous d'un niveau bas. La vanne 5 est alors ouverte par le contrôleur 8. L'éjecteur 12 aspire les dernières gouttelettes de lait se trouvant dans la tuyauterie 10 pendant une durée de 10 secondes après que le niveau bas a été atteint. Ce temps écoulé, l'éjecteur 12 et la pompe 4 sont mis hors service. En phase de pompage, la vanne 13 à deux voies est en position telle que le conduit d'évacuation 15 communique avec la sortie de l'éjecteur 12. L'air aspiré par l'éjecteur est intégralement rejeté à l'extérieur. En phase de lavage, la vanne 13 est en position telle que le conduit 15 d'évacuation de l'éjecteur 12 est en communication avec la tuyauterie 3 de refoulement de la pompe 4 par une tuyauterie 16. Tout le produit de nettoyage entrant par la canne suceuse 11 traverse alors successivement la pompe 4, la tuyauterie d'aspiration par le piquage 6, la vanne 5, l'éjecteur 12, la vanne 13 et la tuyauterie 16 permettant un nettoyage complet de tout l'ensemble sans aucun démontage.When there is no more milk in the can, the level of the liquid in the body of the pump 4 returns below a low level. The valve 5 is then opened by the controller 8. The ejector 12 sucks the last droplets of milk in the pipe 10 for a period of 10 seconds after the low level has been reached. This elapsed time, the ejector 12 and the pump 4 are disabled. In the pumping phase, the two-way valve 13 is in a position such that the evacuation duct 15 communicates with the outlet of the ejector 12. The air sucked by the ejector is entirely rejected to the outside. In the washing phase, the valve 13 is in a position such that the discharge duct 15 of the ejector 12 is in communication with the delivery pipe 3 of the pump 4 via a pipe 16. All the cleaning product entering through the sucking rod 11 then successively passes through the pump 4, the suction pipe through the stitching 6, the valve 5, the ejector 12, the valve 13 and the pipe 16 allowing complete cleaning of the whole assembly without any disassembly.

Claims (3)

REVENDICATIONS 1. Camion-citerne comprenant - une citerne (1) à laquelle arrive une tuyauterie (3) de refoulement d'une pompe (4) dont le tuyau d'aspiration est raccordé à une canne (11) suceuse, - un éjecteur (12) qui a un conduit (7) d'aspiration dont le conduit (14) d'alimentation en air comprimé communique avec la servitude (2) en air comprimé du camion, - un contrôleur (8) de niveau, qui commande la mise en route de la pompe (4), et - une vanne (5) d'arrêt commandée par le contrôleur (8) de niveau, caractérisé en ce que - le conduit (7) d'aspiration de l'éjecteur (12) communique avec le corps de pompe (4), - le contrôleur (8) de niveau est monté sur le conduit d'aspiration de l'éjecteur (12), et - la vanne (5) d'arrêt est montée sur le conduit (7) d'aspiration de l'éjecteur (12) entre le contrôleur (8) de niveau et l'éjecteur (12), et le contrôleur (8) de niveau est tel qu'il ferme la vanne (5) d'arrêt et met la pompe (4) en marche lorsqu'il détecte un niveau haut et ouvre la vanne (5) d'arrêt et arrête la pompe (4) lorsqu'il détecte un niveau bas.  1. Tanker truck comprising: - a tank (1) to which arrives a delivery pipe (3) of a pump (4) whose suction pipe is connected to a rod (11) sucking, - an ejector (12) ) which has a suction duct (7) whose compressed air supply duct (14) communicates with the servitude (2) of compressed air of the truck, - a level controller (8), which controls the implementation pump road (4), and - a stop valve (5) controlled by the level controller (8), characterized in that - the suction duct (7) of the ejector (12) communicates with the pump body (4), - the level controller (8) is mounted on the suction line of the ejector (12), and - the stop valve (5) is mounted on the line (7) of the ejector (12) between the level controller (8) and the ejector (12), and the level controller (8) is such as to close the stop valve (5) and the pump (4) running when it detects a high and open level e the stop valve (5) and stops the pump (4) when it detects a low level. 2. Camion-citerne suivant la revendication 1, caractérisé par un circuit de temporisation qui met la pompe (4) et l'éjecteur (12) hors circuit après une temporisation après que le contrôleur (8) a détecté le niveau bas.  Tank truck according to Claim 1, characterized by a delay circuit which switches off the pump (4) and the ejector (12) after a delay after the controller (8) has detected the low level. 3. Camion-citerne suivant la revendication 1 ou 2, caractérisé par une vanne (13) à deux voies montée sur le conduit (15) d'évacuation de l'air comprimé de l'éjecteur(12) de manière à ce que ce conduit (15) débouche au choix à l'extérieur ou dans la tuyauterie (3) de refoulement de la pompe (4).  Tank truck according to Claim 1 or 2, characterized by a two-way valve (13) mounted on the duct (15) for discharging compressed air from the ejector (12) so that duct (15) opens optionally outside or in the discharge pipe (3) of the pump (4).
FR0702620A 2007-04-11 2007-04-11 TANK TRUCK WITH EJECTOR PRIMER Active FR2914916B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0702620A FR2914916B1 (en) 2007-04-11 2007-04-11 TANK TRUCK WITH EJECTOR PRIMER

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FR0702620A FR2914916B1 (en) 2007-04-11 2007-04-11 TANK TRUCK WITH EJECTOR PRIMER

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FR2914916B1 FR2914916B1 (en) 2009-07-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2223594A2 (en) 2009-02-27 2010-09-01 Deere & Company Agricultural sprayer
FR2994426A1 (en) * 2012-08-08 2014-02-14 Eta Sas Vehicle tanker for containing milk or food substances, has electric circuit connecting sensor to controller, where controller stops motor and opens valves to start ejector when valves are closed and sensor does not detect liquid

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1157767A (en) * 1968-02-22 1969-07-09 H J Godwin Ltd Improvements relating to the Priming of Pumps
NL1005112C2 (en) * 1997-01-28 1998-07-29 Noordelijke Transportmaatschap Road tanker for bulk milk collection
FR2808013A1 (en) * 2000-04-21 2001-10-26 Eta Sa Cistern for milk has pipe feeding a container in communication with an ejector fed by the compressed air source of the truck, the level sensor in container opening the pipe valve and stopping the ejector when maximum threshold is reached

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1157767A (en) * 1968-02-22 1969-07-09 H J Godwin Ltd Improvements relating to the Priming of Pumps
NL1005112C2 (en) * 1997-01-28 1998-07-29 Noordelijke Transportmaatschap Road tanker for bulk milk collection
FR2808013A1 (en) * 2000-04-21 2001-10-26 Eta Sa Cistern for milk has pipe feeding a container in communication with an ejector fed by the compressed air source of the truck, the level sensor in container opening the pipe valve and stopping the ejector when maximum threshold is reached

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2223594A2 (en) 2009-02-27 2010-09-01 Deere & Company Agricultural sprayer
EP2223594A3 (en) * 2009-02-27 2010-09-29 Deere & Company Agricultural sprayer
US8075282B2 (en) 2009-02-27 2011-12-13 Deere & Company Sprayer pump primed by using venturi
FR2994426A1 (en) * 2012-08-08 2014-02-14 Eta Sas Vehicle tanker for containing milk or food substances, has electric circuit connecting sensor to controller, where controller stops motor and opens valves to start ejector when valves are closed and sensor does not detect liquid

Also Published As

Publication number Publication date
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