EP3486483A1 - Pumping system comprising a pneumatic pump and a valve for controlling the compressed gas supply to the pump - Google Patents

Pumping system comprising a pneumatic pump and a valve for controlling the compressed gas supply to the pump Download PDF

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Publication number
EP3486483A1
EP3486483A1 EP18207300.7A EP18207300A EP3486483A1 EP 3486483 A1 EP3486483 A1 EP 3486483A1 EP 18207300 A EP18207300 A EP 18207300A EP 3486483 A1 EP3486483 A1 EP 3486483A1
Authority
EP
European Patent Office
Prior art keywords
valve
state
pump
pneumatic pump
actuator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18207300.7A
Other languages
German (de)
French (fr)
Other versions
EP3486483B1 (en
Inventor
Boussif KHALDI
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.)
Exel Industries SA
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Exel Industries SA
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Filing date
Publication date
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Publication of EP3486483A1 publication Critical patent/EP3486483A1/en
Application granted granted Critical
Publication of EP3486483B1 publication Critical patent/EP3486483B1/en
Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/03—Stopping, starting, unloading or idling control by means of valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2489—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device
    • B05B7/2491—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures
    • F04B49/103—Responsive to speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2201/00—Pump parameters
    • F04B2201/06—Valve parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/09—Flow through the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/301—Pressure

Definitions

  • the present invention relates to a pumping installation, of the type comprising a pneumatic pump for pumping a fluid and a system for supplying the pneumatic pump with compressed gas, the supply system comprising a source of compressed gas and a fluidic connection connecting fluidically the source to the pneumatic pump.
  • the installation also relates to a device for projecting a coating product onto a surface to be coated, of the type comprising an applicator for spraying the coating product on the surface to be coated and a pumping installation for pumping the coating product. and feeding the applicator with said coating product.
  • These pumps are fed with a compressed gas, generally air, which is used to animate said pumps with a movement which will allow the suction of the coating product into the can and the delivery of the coating product in a fluidic connection. connecting the pump to one of the applicators of the installation.
  • the force provided by the compressed gas is sized to compensate for pressure losses due to the circulation of the coating product in the pump ducts and the discharge of this coating product, at the desired pressure, in the direction of the pump. applicator.
  • An object of the invention is thus to provide an economical and reliable solution capable of limiting the risk of runaway of a coating product pump. Another object of the invention is to allow retrofitting of existing installations with the proposed solution.
  • the subject of the invention is a pumping installation of the aforementioned type, in which the pumping installation also comprises a system for regulating the supply of the pneumatic pump with compressed gas, the said regulation system comprising a valve. mounted on the fluidic connection and switchable between a blocking state, in which the valve prevents the flow of compressed gas between the source and the pneumatic pump, and an on state, in which the valve allows the compressed gas flow between the source and the pneumatic pump.
  • the invention also relates to a projection installation of a coating product on a surface to be coated, of the aforementioned type, in which the pumping installation is constituted by a pumping installation as defined above.
  • the projection apparatus 10 shown on the Figure 1 is intended for projecting a fluid coating product 12, typically a paint, onto a surface to be coated (not shown).
  • the projection installation 10 comprises an applicator 14 for the application of the coating product 12 on the surface to be coated, a pumping installation 16 for pumping the coating product 12, and a fluidic connection 18 connecting fluidically the pumping installation 16 to the applicator 14 for feeding the applicator 14 with the coating product pumped by the pumping installation 16.
  • the applicator 14 is typically constituted by a spray gun. It comprises a coating material supply inlet 19, fluidly connected to the fluidic connection 18.
  • the pumping installation 16 comprises a reservoir 20 containing the coating product 12, a pneumatic pump 22 for pumping the coating product 12 contained in the reservoir 20, and a system 24 for supplying the pneumatic pump 22 with compressed gas.
  • the pumping installation 16 also comprises a containment chamber 25 in which the reservoir 20 and the pump 22 are arranged.
  • the reservoir 20 is typically constituted by a can.
  • the pneumatic pump 22 comprises, in known manner, a probe 26 inserted into the reservoir 20 and defining a suction orifice 28 for the coating product 12, a discharge orifice 30 for the coating product 12, fluidly connected to the fluidic connection 18 , a pneumatic motor (not shown) pulling its power from the expansion of a compressed gas and adapted to cause the movement of pumping members (not shown) to suck the coating product 12 through the suction port 28 and pushing it back to the discharge port 30, and, typically, a system (not shown) for controlling the inversion of the displacement of the pneumatic motor.
  • the pneumatic pump 22 also includes a supply port 32 for supplying the pump 22 with compressed gas.
  • the control system of the inversion of the displacement of the pneumatic motor comprises, for example, a distributor for alternately supplying two cavities of the engine with compressed gas so as to cause a reciprocating movement of the pneumatic motor, and end-of-the-end sensors. race to detect when the engine comes in end of movement and, in response, control the distributor so that it changes the motor cavity supplied with compressed gas.
  • the supply system 24 comprises a source 34 of compressed gas, a fluidic connection 36 fluidly connecting the source 34 to the supply port 32 of the pump 22, and a system 38 for regulating the supply of the pump 22 in compressed gas.
  • the source 34 is capable of supplying a compressed gas, for example compressed air.
  • the source 34 is typically constituted by a compressor, in particular an air compressor.
  • the control system 38 comprises a valve 40 mounted on the fluidic connection 36, outside the enclosure 25, said valve 40 being switchable between a blocking state, in which it prevents the flow of compressed gas between the source 34 and the pneumatic pump. 32, and an on state, in which it allows the circulation of compressed gas between the source 34 and the pneumatic pump 32.
  • the regulation system 38 also comprises a system 42 for automatically controlling the valve 40.
  • the fluidic connection 36 comprises an upstream section 37 between the source 34 and the valve 40, and a downstream section 39 between the valve 40 and the pump 22.
  • the valve 40 comprises a body 44 internally defining a passage 46 for the compressed gas, and a valve 48 mounted to move relative to the body 44 between a closed position, in which it closes the passage 46, and an open position, in which it releases the passage 46, the open position of the valve 48 corresponding to the on state of the valve 40, and the closed position of the valve 48 corresponding to the blocking state of the passage 46.
  • the valve 40 further comprises a member 50 for biasing the valve 48 to its closed position.
  • the passage 46 is through and opens out of the body 44 through an upstream orifice 52 fluidly connected to the upstream section 37 of the fluidic connection 36, and through a downstream orifice 54 fluidly connected to the downstream section 39 of the fluidic connection 36.
  • the upstream section 56 comprises a first rectilinear channel 60, oriented in a transverse direction T, and a second rectilinear channel 62, oriented in a longitudinal direction L perpendicular to the transverse direction T.
  • the downstream section 58 understands to it a third channel 64 rectilinear, oriented in the transverse direction T, a cavity 66 disposed longitudinally in the extension of the second channel 62, of greater cross section than the second channel 62, and a fluid connection 68 between the third channel 64 and the cavity 66.
  • the first channel 60 opens out of the body 44 through the upstream orifice 52
  • the third channel 64 opens out of the body 44 through the downstream orifice 54.
  • the second channel 62 opens into the cavity 66 and outside the body 44.
  • the body 44 also defines, at the junction between the upstream sections 56 and downstream 58, a seat 70 for the valve 48 in the closed position.
  • This seat 70 is, in the example shown, formed by a shoulder surrounding the orifice through which the second channel 62 opens into the cavity 66.
  • the valve 48 is movably mounted in translation in the longitudinal direction L relative to the body 44 between its open and closed positions.
  • the valve 48 is, in the example shown, integral with a shaft 72 engaged in the second channel 62, said shaft 72 comprising a narrow section 74, with a cross section less than 90% of that of the second channel 62 , and a wide section 76, of cross-section substantially complementary to that of the second channel 62: the shaft 72 thus forms with the second channel 62 a guide for the translational guidance of the valve 48 relative to the body 44.
  • the narrow section 74 is in particular interposed between the valve 48 and the wide section 76, the wide section 76 being at a distance from the valve 48 greater than the distance from the valve 48 to the first channel 60 when the valve 48 is in the open position, as visible on the Figure 2 .
  • the first channel 60 is not closed by the wide section 76 when the valve 48 is open.
  • a seal 78 is disposed around the wide portion 76, between said wide section 76 and the wall of the second channel 62. This prevents compressed gas from leaking out of the body 44 by the end through which the second channel 62 opens out of the body 44.
  • the valve 48 comprises an annular seal 80.
  • This annular seal 80 defines a bearing face 82 of the valve 48 against the seat 70 when the valve 48 is closed.
  • valve 48 is housed inside the cavity 66.
  • the return member 50 is, in the example shown, formed by a compression spring housed in the cavity 66, between the valve 48 and a bottom 84 of the cavity 66.
  • the valve 40 also comprises a metal plate 86 placed outside the body 44 and movable together with the valve 48 so as to occupy a position close to the body 44 when the valve 48 is closed and a position away from the body 44 when the valve 48 is open.
  • the counterplate 86 is aligned longitudinally with the valve 48, the valve 48 being interposed between the seat 70 and said counterplate 86.
  • the counterplate 86 is in particular integral in translation of the valve 48.
  • it is, in the example shown, made of material with a shaft 87 mounted, typically screwed onto the shaft 72, and extending through an opening 88 opening into the bottom 84 of the cavity 66 and outside the body 44.
  • a seal 89 surrounds said shaft 87 in the opening 88 and seals between the cavity 66 and the outside of the body 44.
  • the autopilot system 42 comprises a sensor 90 for monitoring a parameter, and an actuator 92 ( Figure 2 ) acting on the valve 40 to automatically switch the valve 40 from its state to its blocking state according to a signal produced by the sensor 90 and representative of the monitored parameter.
  • the sensor 90 comprises a first portion 94 disposed in the confinement enclosure 25, and a second portion 96 disposed outside the confinement enclosure 25.
  • the first part 94 is able to occupy a first state in normal time, and a second state when the monitored parameter satisfies a predetermined condition, said second state being specific to the case in which said predetermined condition is verified.
  • the parameter monitored here consists of a state of the pump 22.
  • the predetermined condition is then that the state of the pump 22 is a predetermined state, typically consisting of a packaged state of the pump 22.
  • the second part 96 is able to generate an electrical signal when the first part 94 is in its second state, and exclusively when said first part 94 is in its second state. So the second part 96 is fit to generate an electrical signal when the predetermined condition is verified, and exclusively when it is verified.
  • the actuator 92 is electrically connected to the sensor 90 to receive said electrical signal as it is generated.
  • an electrical connection 98 electrically connects the actuator 92 to the sensor 90.
  • the actuator 92 is constituted by an electromagnetic suction cup, in particular a permanent magnet electromagnetic suction cup, aligned longitudinally with the counterplate 86, the counterplate 86 being interposed between the valve 48 and the suction cup, said suction cup being arranged so that, when the valve 48 is in the open position, the counterplate 86 is pressed against said suction cup and that when the valve 48 is in the closed position, the counterplate 86 is away from said suction cup.
  • the actuator 92 thus has, in the absence of electric current, an active state in which it exerts on the counterplate 86 a magnetic force for biasing the counterplate 86 towards its pressed position against the actuator 92 and, when supplied with an electric current in an inactive state in which it does not exert such a biasing force on the plate 86.
  • the return member 50 and the magnetization force of the actuator 92 are dimensioned so that, when the counterplate 86 is pressed against the actuator 92, the biasing force exerted by the actuator 92 on the latter is greater than to the return force of the return member 50.
  • the actuator 92 is thus able to hold the valve 48 in its open position, the biasing force forming, when the valve 48 is in the open position, a retaining force of valve 48 in the open position.
  • the actuator 92 is adapted to automatically switch the valve 40 from its state to its blocking state when it receives the electrical signal generated by the second portion 96 of the sensor 90.
  • the return member 50 and the magnetization force of the actuator 92 are also dimensioned so that, when the valve 48 is closed, the biasing force exerted by the actuator 92 on the counterplate 86 is less than the force return of the return member 50. Thus, the actuator 92 is not able to move the valve 48 from its closed position to its open position.
  • the regulation system 38 also comprises, as visible on the Figure 2 a manually actuated button 100 for switching the valve 40 from its blocking state to its on state.
  • This button 100 is in particular formed by a push button aligned longitudinally with the valve 48, the seat 70 being interposed between the valve 48 and said knob 100.
  • a simple pressure on the button 100 causes the displacement of the valve 48 to the 70 away from the seat and, in this way, to bring the valve 48 in its open position.
  • the invention allows an easy retrofit and economic installation already existing, since it is sufficient to install the control system 38.

Abstract

Cette installation de pompage (16) comprend une pompe pneumatique (22) pour pomper un fluide (12) et un système (24) d'alimentation de la pompe pneumatique (22) en gaz comprimé. Le système d'alimentation (24) comprend une source (34) de gaz comprimé et une liaison fluidique (36) reliant fluidiquement la source (34) à la pompe pneumatique (22). L'installation de pompage (16) comprend également un système (38) de régulation de l'alimentation de la pompe pneumatique (22) en gaz comprimé, ledit système de régulation (38) comprenant une vanne (40) montée sur la liaison fluidique (36) et permutable entre un étant bloquant, dans laquelle la vanne (40) empêche la circulation de gaz comprimé entre la source (34) et la pompe pneumatique (22), et un étant passant, dans laquelle la vanne (40) permet la circulation de gaz comprimé entre la source (34) et la pompe pneumatique (22).The pumping installation (16) comprises a pneumatic pump (22) for pumping a fluid (12) and a system (24) for supplying the pneumatic pump (22) with compressed gas. The supply system (24) includes a source (34) of compressed gas and a fluidic connection (36) fluidly connecting the source (34) to the pneumatic pump (22). The pumping installation (16) also comprises a system (38) for regulating the supply of the pneumatic pump (22) with compressed gas, the said regulation system (38) comprising a valve (40) mounted on the fluidic connection (36) and switchable between a blocking member, wherein the valve (40) prevents the flow of compressed gas between the source (34) and the pneumatic pump (22), and a passing member, wherein the valve (40) allows the circulation of compressed gas between the source (34) and the pneumatic pump (22).

Description

La présente invention concerne une installation de pompage, du type comprenant une pompe pneumatique pour pomper un fluide et un système d'alimentation de la pompe pneumatique en gaz comprimé, le système d'alimentation comprenant une source de gaz comprimé et une liaison fluidique reliant fluidiquement la source à la pompe pneumatique.The present invention relates to a pumping installation, of the type comprising a pneumatic pump for pumping a fluid and a system for supplying the pneumatic pump with compressed gas, the supply system comprising a source of compressed gas and a fluidic connection connecting fluidically the source to the pneumatic pump.

L'installation concerne également une installation de projection d'un produit de revêtement sur une surface à revêtir, du type comprenant un applicateur pour la projection du produit de revêtement sur la surface à revêtir et une installation de pompage pour le pompage du produit de revêtement et l'alimentation de l'applicateur avec ledit produit de revêtement.The installation also relates to a device for projecting a coating product onto a surface to be coated, of the type comprising an applicator for spraying the coating product on the surface to be coated and a pumping installation for pumping the coating product. and feeding the applicator with said coating product.

Dans les installations de projection de produit de revêtement connues, par exemple de projection de peinture, les applicateurs, typiquement constitués par des pistolets de pulvérisation, sont généralement alimentés en produit de revêtement sous pression par une installation de pompage. Cette installation de pompage comprend habituellement des pompes pneumatiques disposées dans une pièce dédiée du bâtiment, communément appelée « cuisine de peinture », chacune pompant un produit de revêtement dans un bidon propre.In known coating product spraying installations, for example spray painting, applicators, typically consisting of spray guns, are generally supplied with pressure coating material by a pumping installation. This pumping installation usually comprises pneumatic pumps arranged in a dedicated room of the building, commonly called "paint kitchen", each pumping a coating product in a clean container.

Ces pompes sont alimentées avec un gaz comprimé, généralement de l'air, qui est utilisé pour animer lesdites pompes d'un mouvement qui va permettre l'aspiration du produit de revêtement dans le bidon et le refoulement du produit de revêtement dans une liaison fluidique raccordant la pompe à l'un des applicateurs de l'installation. La force apportée par le gaz comprimé est dimensionnée pour permettre de compenser les pertes de charge dues à la circulation du produit de revêtement dans les conduits de la pompe et le refoulement de ce produit de revêtement, à la pression désirée, en direction de l'applicateur.These pumps are fed with a compressed gas, generally air, which is used to animate said pumps with a movement which will allow the suction of the coating product into the can and the delivery of the coating product in a fluidic connection. connecting the pump to one of the applicators of the installation. The force provided by the compressed gas is sized to compensate for pressure losses due to the circulation of the coating product in the pump ducts and the discharge of this coating product, at the desired pressure, in the direction of the pump. applicator.

Un problème se pose toutefois lorsque le réservoir de produit de revêtement est vide. En effet, à ce stade, la pompe ne parvenant plus à aspirer de produit de revêtement, elle se désamorce et, la force apportée par le gaz comprimé ne rencontrant plus la résistance du produit de revêtement, la pompe s'emballe, ce qui risque d'endommager ses composants. Ce risque est d'autant plus élevé que, les pompes étant isolées dans une pièce spécifique, aucun opérateur ne se trouve à proximité pour réagir rapidement à l'emballement de l'une des pompes.A problem arises, however, when the coating product reservoir is empty. Indeed, at this stage, the pump is no longer able to suck coating product, it is defused and, the force provided by the compressed gas no longer meeting the resistance of the coating product, the pump is racing, which risk to damage its components. This risk is all the greater as the pumps being isolated in a specific room, no operator is nearby to quickly react to the runaway of one of the pumps.

Pour résoudre ce problème, il a été proposé des pompes équipées de dispositifs anti-emballement, constitués par des membranes qui se bloquent en cas de fort appel en gaz sous pression, bloquant ainsi l'arrivée de gaz sous pression. Ces dispositifs anti-emballement sont toutefois peu fiables.To solve this problem, it has been proposed pumps equipped with anti-runaway devices, consisting of membranes that lock in case of strong appeal. gas under pressure, thus blocking the entry of pressurized gas. These anti-runaway devices are however unreliable.

Il a également été proposé des dispositifs anti-emballement indépendants des pompes, adaptés pour couper l'alimentation en gaz comprimé des pompes en cas d'emballement de ces dernières grâce à une logique pneumatique complexe. Ces dispositifs anti-emballement sont toutefois très coûteux.It has also been proposed anti-runaway devices independent of the pumps, adapted to cut off the compressed gas supply of the pumps in case of runaway of the latter through a complex pneumatic logic. These anti-runaway devices are, however, very expensive.

Un objectif de l'invention est ainsi de proposer une solution économique et fiable apte à limiter les risques d'emballement d'une pompe de produit de revêtement. Un autre objectif de l'invention est de permettre le rétro-équipement d'installations existantes avec la solution proposée.An object of the invention is thus to provide an economical and reliable solution capable of limiting the risk of runaway of a coating product pump. Another object of the invention is to allow retrofitting of existing installations with the proposed solution.

A cet effet, l'invention a pour objet une installation de pompage du type précité, dans laquelle l'installation de pompage comprend également un système de régulation de l'alimentation de la pompe pneumatique en gaz comprimé, ledit système de régulation comprenant une vanne montée sur la liaison fluidique et permutable entre un état bloquant, dans laquelle la vanne empêche la circulation de gaz comprimé entre la source et la pompe pneumatique, et un état passant, dans laquelle la vanne permet la circulation de gaz comprimé entre la source et la pompe pneumatique.For this purpose, the subject of the invention is a pumping installation of the aforementioned type, in which the pumping installation also comprises a system for regulating the supply of the pneumatic pump with compressed gas, the said regulation system comprising a valve. mounted on the fluidic connection and switchable between a blocking state, in which the valve prevents the flow of compressed gas between the source and the pneumatic pump, and an on state, in which the valve allows the compressed gas flow between the source and the pneumatic pump.

Selon des modes de réalisation particuliers de l'invention, l'installation présente également l'une ou plusieurs des caractéristiques suivantes, prise(s) isolément ou suivant toute(s) combinaison(s) techniquement possible(s) :

  • le système de régulation comprend un système de pilotage automatique de la vanne, ledit système de pilotage automatique comprenant un capteur de surveillance d'un paramètre, et un actionneur agissant sur la vanne pour permuter automatiquement la vanne de son état passant vers son état bloquant en fonction d'un signal produit par le capteur et représentatif du paramètre surveillé,
  • le paramètre surveillé est constitué par un état de la pompe pneumatique,
  • le capteur est propre à générer un signal électrique prédéterminé lorsqu'il détecte au moins un état prédéterminé de la pompe pneumatique, et l'actionneur est raccordé électriquement au capteur de manière à recevoir ce signal électrique lorsqu'il est généré, l'actionneur étant en outre adapté pour permuter la vanne de son état passant vers son état bloquant lorsqu'il reçoit ce signal électrique,
  • l'état prédéterminé comprend un état emballé de la pompe pneumatique,
  • la vanne comprend un corps définissant intérieurement un passage pour le gaz comprimé, un clapet monté mobile relativement au corps entre une position fermée, dans laquelle il obture le passage, et une position ouverte, dans laquelle il libère le passage, et un organe de rappel du clapet vers sa position fermée, l'actionneur étant propre à retenir le clapet dans sa position ouverte,
  • l'actionneur présente un état actif dans lequel il exerce sur le clapet ouvert une force de retenue du clapet dans sa position ouverte, et un état inactif dans lequel l'actionneur n'exerce pas de force de retenue sur le clapet ouvert,
  • l'actionneur est apte à être dans son état actif lorsqu'il n'est pas alimenté en courant électrique, et dans son état inactif lorsqu'il est alimenté en courant électrique,
  • l'actionneur comprend une ventouse électromagnétique, en particulier une ventouse électromagnétique à aimant permanent,
  • la vanne comprend une contreplaque métallique mobile conjointement avec le clapet de sorte à être plaquée contre la ventouse électromagnétique lorsque le clapet est ouvert, et à être à l'écart de la ventouse électromagnétique lorsque le clapet est fermé, la ventouse électromagnétique étant apte à exercer sur la contreplaque lorsque l'actionneur est dans son état actif une force de sollicitation de la contreplaque vers sa position plaquée, ladite force de sollicitation étant supérieure à la force de rappel lorsque le clapet est ouvert et étant inférieure à la force de rappel lorsque le clapet est fermé,
  • le clapet est monté mobile relativement au corps en translation selon une direction longitudinale entre ses positions ouverte et fermée,
  • le système de régulation comprend un bouton à actionnement manuel, en particulier un bouton poussoir, pour la permutation de la vanne depuis son état bloquant dans son état passant,
  • l'installation de pompage comprend une enceinte de confinement dans laquelle la pompe pneumatique est installée, la vanne étant disposée hors de ladite enceinte de confinement,
  • l'installation de pompage comprend un réservoir, en particulier un bidon, contenant le fluide, la pompe pneumatique étant apte à pomper le fluide contenu dans ledit réservoir.
According to particular embodiments of the invention, the installation also has one or more of the following characteristics, taken in isolation or according to any combination (s) technically possible (s):
  • the control system comprises an automatic valve control system, said automatic control system comprising a sensor for monitoring a parameter, and an actuator acting on the valve to automatically switch the valve from its switched state to its blocking state. function of a signal produced by the sensor and representative of the monitored parameter,
  • the parameter monitored is constituted by a state of the pneumatic pump,
  • the sensor is adapted to generate a predetermined electrical signal when it detects at least one predetermined state of the pneumatic pump, and the actuator is electrically connected to the sensor so as to receive this electrical signal when it is generated, the actuator being further adapted to switch the valve from its state to its blocking state when it receives this electrical signal,
  • the predetermined state comprises a packaged state of the pneumatic pump,
  • the valve comprises a body internally defining a passage for the compressed gas, a valve mounted movably relative to the body between a closed position, in which it closes the passage, and an open position, in which it releases the passage, and a valve return member to its closed position, the actuator being adapted to hold the valve in its open position,
  • the actuator has an active state in which it exerts on the open flap a valve retaining force in its open position, and an inactive state in which the actuator does not exert a retaining force on the open flap,
  • the actuator is able to be in its active state when it is not supplied with electric current, and in its inactive state when it is supplied with electric current,
  • the actuator comprises an electromagnetic sucker, in particular an electromagnetic permanent magnet sucker,
  • the valve comprises a metal counterplate movable together with the valve so as to be pressed against the electromagnetic pad when the valve is open, and to be away from the electromagnetic pad when the valve is closed, the electromagnetic pad being able to exert on the plywood when the actuator is in its active state a biasing force of the plywood to its plated position, said biasing force being greater than the restoring force when the flap is open and being less than the restoring force when the valve is closed,
  • the valve is mounted movably relative to the body in translation in a longitudinal direction between its open and closed positions,
  • the control system comprises a manually operated button, in particular a push button, for switching the valve from its blocking state to its on state,
  • the pumping installation comprises a containment enclosure in which the pneumatic pump is installed, the valve being disposed outside said confinement enclosure,
  • the pumping installation comprises a reservoir, in particular a container, containing the fluid, the pneumatic pump being able to pump the fluid contained in said reservoir.

L'invention a également pour objet une installation de projection d'un produit de revêtement sur une surface à revêtir, du type précité, dans laquelle l'installation de pompage est constituée par une installation de pompage telle que définie ci-dessus.The invention also relates to a projection installation of a coating product on a surface to be coated, of the aforementioned type, in which the pumping installation is constituted by a pumping installation as defined above.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés, dans lesquels :

  • la Figure 1 est une vue schématique d'une installation de projection selon l'invention ;
  • la Figure 2 est une vue en coupe d'une vanne de l'installation de projection de la Figure 1, la vanne étant dans un état passant, et
  • la Figure 3 est une vue similaire à celle de la Figure 2, la vanne étant dans un état bloquant.
Other features and advantages of the invention will appear on reading the description which follows, given solely by way of example and with reference to the appended drawings, in which:
  • the Figure 1 is a schematic view of a projection installation according to the invention;
  • the Figure 2 is a sectional view of a valve of the projection installation of the Figure 1 the valve being in an on state, and
  • the Figure 3 is a view similar to that of the Figure 2 , the valve being in a blocking state.

L'installation de projection 10 représentée sur la Figure 1 est destinée à la projection d'un produit de revêtement fluide 12, typiquement une peinture, sur une surface à revêtir (non représentée). A cet effet, l'installation de projection 10 comprend un applicateur 14 pour l'application du produit de revêtement 12 sur la surface à revêtir, une installation de pompage 16 pour le pompage du produit de revêtement 12, et une connexion fluidique 18 reliant fluidiquement l'installation de pompage 16 à l'applicateur 14 pour l'alimentation de l'applicateur 14 avec le produit de revêtement pompé par l'installation de pompage 16.The projection apparatus 10 shown on the Figure 1 is intended for projecting a fluid coating product 12, typically a paint, onto a surface to be coated (not shown). For this purpose, the projection installation 10 comprises an applicator 14 for the application of the coating product 12 on the surface to be coated, a pumping installation 16 for pumping the coating product 12, and a fluidic connection 18 connecting fluidically the pumping installation 16 to the applicator 14 for feeding the applicator 14 with the coating product pumped by the pumping installation 16.

L'applicateur 14 est typiquement constitué par un pistolet de pulvérisation. Il comprend une entrée 19 d'alimentation en produit de revêtement, raccordée fluidiquement à la connexion fluidique 18.The applicator 14 is typically constituted by a spray gun. It comprises a coating material supply inlet 19, fluidly connected to the fluidic connection 18.

L'installation de pompage 16 comprend un réservoir 20 contenant le produit de revêtement 12, une pompe pneumatique 22 pour pomper le produit de revêtement 12 contenu dans le réservoir 20, et un système 24 d'alimentation de la pompe pneumatique 22 en gaz comprimé. L'installation de pompage 16 comprend également une enceinte de confinement 25 dans laquelle sont disposés le réservoir 20 et la pompe 22.The pumping installation 16 comprises a reservoir 20 containing the coating product 12, a pneumatic pump 22 for pumping the coating product 12 contained in the reservoir 20, and a system 24 for supplying the pneumatic pump 22 with compressed gas. The pumping installation 16 also comprises a containment chamber 25 in which the reservoir 20 and the pump 22 are arranged.

Le réservoir 20 est typiquement constitué par un bidon.The reservoir 20 is typically constituted by a can.

La pompe pneumatique 22 comprend, de manière connue, une sonde 26 insérée dans le réservoir 20 et définissant un orifice 28 d'aspiration du produit de revêtement 12, un orifice 30 de refoulement du produit de revêtement 12, raccordé fluidiquement à la connexion fluidique 18, un moteur pneumatique (non représenté) tirant sa puissance de la détente d'un gaz comprimé et apte à entraîner le mouvement d'organes de pompage (non représentés) pour aspirer le produit de revêtement 12 à travers l'orifice d'aspiration 28 et le refouler vers l'orifice de refoulement 30, et, typiquement, un système (non représenté) de pilotage de l'inversion du déplacement du moteur pneumatique. La pompe pneumatique 22 comprend également un orifice d'alimentation 32 pour l'alimentation de la pompe 22 en gaz comprimé.The pneumatic pump 22 comprises, in known manner, a probe 26 inserted into the reservoir 20 and defining a suction orifice 28 for the coating product 12, a discharge orifice 30 for the coating product 12, fluidly connected to the fluidic connection 18 , a pneumatic motor (not shown) pulling its power from the expansion of a compressed gas and adapted to cause the movement of pumping members (not shown) to suck the coating product 12 through the suction port 28 and pushing it back to the discharge port 30, and, typically, a system (not shown) for controlling the inversion of the displacement of the pneumatic motor. The pneumatic pump 22 also includes a supply port 32 for supplying the pump 22 with compressed gas.

Le système de pilotage de l'inversion du déplacement du moteur pneumatique comprend par exemple un distributeur pour alimenter alternativement deux cavités du moteur en gaz comprimé de sorte à provoquer un mouvement de va-et-vient du moteur pneumatique, et des capteurs de fin de course pour détecter lorsque le moteur arrive en fin de déplacement et, en réaction, commander le distributeur pour qu'il change la cavité du moteur alimentée en gaz comprimé.The control system of the inversion of the displacement of the pneumatic motor comprises, for example, a distributor for alternately supplying two cavities of the engine with compressed gas so as to cause a reciprocating movement of the pneumatic motor, and end-of-the-end sensors. race to detect when the engine comes in end of movement and, in response, control the distributor so that it changes the motor cavity supplied with compressed gas.

Le système d'alimentation 24 comprend une source 34 de gaz comprimé, une liaison fluidique 36 reliant fluidiquement la source 34 à l'orifice d'alimentation 32 de la pompe 22, et un système 38 de régulation de l'alimentation de la pompe 22 en gaz comprimé.The supply system 24 comprises a source 34 of compressed gas, a fluidic connection 36 fluidly connecting the source 34 to the supply port 32 of the pump 22, and a system 38 for regulating the supply of the pump 22 in compressed gas.

La source 34 est apte à fournir un gaz comprimé, par exemple de l'air comprimé. A cet effet, la source 34 est typiquement constituée par un compresseur, en particulier un compresseur à air.The source 34 is capable of supplying a compressed gas, for example compressed air. For this purpose, the source 34 is typically constituted by a compressor, in particular an air compressor.

Le système de régulation 38 comprend une vanne 40 montée sur la liaison fluidique 36, hors de l'enceinte 25, ladite vanne 40 étant permutable entre un état bloquant, dans laquelle elle empêche la circulation de gaz comprimé entre la source 34 et la pompe pneumatique 32, et un état passant, dans laquelle elle permet la circulation de gaz comprimé entre la source 34 et la pompe pneumatique 32. Le système de régulation 38 comprend également un système 42 de pilotage automatique de la vanne 40.The control system 38 comprises a valve 40 mounted on the fluidic connection 36, outside the enclosure 25, said valve 40 being switchable between a blocking state, in which it prevents the flow of compressed gas between the source 34 and the pneumatic pump. 32, and an on state, in which it allows the circulation of compressed gas between the source 34 and the pneumatic pump 32. The regulation system 38 also comprises a system 42 for automatically controlling the valve 40.

La liaison fluidique 36 comprend un tronçon amont 37 entre la source 34 et la vanne 40, et un tronçon aval 39 entre la vanne 40 et la pompe 22.The fluidic connection 36 comprises an upstream section 37 between the source 34 and the valve 40, and a downstream section 39 between the valve 40 and the pump 22.

En référence à la Figure 2, la vanne 40 comprend un corps 44 définissant intérieurement un passage 46 pour le gaz comprimé, et un clapet 48 monté mobile relativement au corps 44 entre une position fermée, dans laquelle il obture le passage 46, et une position ouverte, dans laquelle il libère le passage 46, la position ouverte du clapet 48 correspondant à l'état passant de la vanne 40, et la position fermée du clapet 48 correspondant à l'état bloquant du passage 46. La vanne 40 comprend en outre un organe 50 de rappel du clapet 48 vers sa position fermée.With reference to the Figure 2 , the valve 40 comprises a body 44 internally defining a passage 46 for the compressed gas, and a valve 48 mounted to move relative to the body 44 between a closed position, in which it closes the passage 46, and an open position, in which it releases the passage 46, the open position of the valve 48 corresponding to the on state of the valve 40, and the closed position of the valve 48 corresponding to the blocking state of the passage 46. The valve 40 further comprises a member 50 for biasing the valve 48 to its closed position.

Le passage 46 est traversant et débouche à l'extérieur du corps 44 par un orifice amont 52 raccordé fluidiquement au tronçon amont 37 de la liaison fluidique 36, et par un orifice aval 54 raccordé fluidiquement au tronçon aval 39 de la liaison fluidique 36. Il présente un tronçon amont 56, débouchant à l'extérieur du corps 44 par l'orifice amont 52, et un tronçon aval 58, débouchant à l'extérieur du corps 44 par l'orifice aval 54.The passage 46 is through and opens out of the body 44 through an upstream orifice 52 fluidly connected to the upstream section 37 of the fluidic connection 36, and through a downstream orifice 54 fluidly connected to the downstream section 39 of the fluidic connection 36. has an upstream section 56, opening outwardly of the body 44 through the upstream orifice 52, and a downstream section 58, opening outwardly of the body 44 through the downstream orifice 54.

Dans l'exemple représenté, le tronçon amont 56 comprend un premier canal 60 rectiligne, orienté suivant une direction transversale T, et un deuxième canal 62 rectiligne, orienté suivant une direction longitudinale L perpendiculaire à la direction transversale T. Le tronçon aval 58 comprend quant à lui un troisième canal 64 rectiligne, orienté suivant la direction transversale T, une cavité 66 disposée longitudinalement dans le prolongement du deuxième canal 62, de section transversale supérieure à celle du deuxième canal 62, et une liaison fluidique 68 entre le troisième canal 64 et la cavité 66. Le premier canal 60 débouche hors du corps 44 à travers l'orifice amont 52, et le troisième canal 64 débouche hors du corps 44 à travers l'orifice aval 54.In the example shown, the upstream section 56 comprises a first rectilinear channel 60, oriented in a transverse direction T, and a second rectilinear channel 62, oriented in a longitudinal direction L perpendicular to the transverse direction T. The downstream section 58 understands to it a third channel 64 rectilinear, oriented in the transverse direction T, a cavity 66 disposed longitudinally in the extension of the second channel 62, of greater cross section than the second channel 62, and a fluid connection 68 between the third channel 64 and the cavity 66. The first channel 60 opens out of the body 44 through the upstream orifice 52, and the third channel 64 opens out of the body 44 through the downstream orifice 54.

Le deuxième canal 62 débouche dans la cavité 66 et à l'extérieur du corps 44.The second channel 62 opens into the cavity 66 and outside the body 44.

Le corps 44 définit également, à la jonction entre les tronçons amont 56 et aval 58, un siège 70 pour le clapet 48 en position fermée. Ce siège 70 est, dans l'exemple représenté, formé par un épaulement entourant l'orifice par lequel le deuxième canal 62 débouche dans la cavité 66.The body 44 also defines, at the junction between the upstream sections 56 and downstream 58, a seat 70 for the valve 48 in the closed position. This seat 70 is, in the example shown, formed by a shoulder surrounding the orifice through which the second channel 62 opens into the cavity 66.

Le clapet 48 est monté mobile en translation suivant la direction longitudinale L relativement au corps 44 entre ses positions ouverte et fermée. A cet effet, le clapet 48 est, dans l'exemple représenté, solidaire d'un arbre 72 engagé dans le deuxième canal 62, ledit arbre 72 comprenant un tronçon étroit 74, de section transversale inférieure à 90% de celle du deuxième canal 62, et un tronçon large 76, de section transversale sensiblement complémentaire à celle du deuxième canal 62 : l'arbre 72 forme ainsi avec le deuxième canal 62 un guide pour le guidage en translation du clapet 48 relativement au corps 44.The valve 48 is movably mounted in translation in the longitudinal direction L relative to the body 44 between its open and closed positions. For this purpose, the valve 48 is, in the example shown, integral with a shaft 72 engaged in the second channel 62, said shaft 72 comprising a narrow section 74, with a cross section less than 90% of that of the second channel 62 , and a wide section 76, of cross-section substantially complementary to that of the second channel 62: the shaft 72 thus forms with the second channel 62 a guide for the translational guidance of the valve 48 relative to the body 44.

Le tronçon étroit 74 est en particulier interposé entre le clapet 48 et le tronçon large 76, le tronçon large 76 étant à une distance du clapet 48 supérieure à la distance du clapet 48 au premier canal 60 lorsque le clapet 48 est en position ouverte, comme visible sur la Figure 2. Ainsi, le premier canal 60 n'est pas obturé par le tronçon large 76 lorsque le clapet 48 est ouvert.The narrow section 74 is in particular interposed between the valve 48 and the wide section 76, the wide section 76 being at a distance from the valve 48 greater than the distance from the valve 48 to the first channel 60 when the valve 48 is in the open position, as visible on the Figure 2 . Thus, the first channel 60 is not closed by the wide section 76 when the valve 48 is open.

Un joint 78 est disposé autour du tronçon large 76, entre ledit tronçon large 76 et la paroi du deuxième canal 62. Cela évite que du gaz comprimé ne fuie hors du corps 44 par l'extrémité par laquelle le deuxième canal 62 débouche hors du corps 44.A seal 78 is disposed around the wide portion 76, between said wide section 76 and the wall of the second channel 62. This prevents compressed gas from leaking out of the body 44 by the end through which the second channel 62 opens out of the body 44.

Le clapet 48 comprend un joint annulaire 80. Ce joint annulaire 80 définit une face 82 d'appui du clapet 48 contre le siège 70 lorsque le clapet 48 est fermé.The valve 48 comprises an annular seal 80. This annular seal 80 defines a bearing face 82 of the valve 48 against the seat 70 when the valve 48 is closed.

Dans l'exemple représenté, le clapet 48 est logé à l'intérieur de la cavité 66.In the example shown, the valve 48 is housed inside the cavity 66.

L'organe de rappel 50 est, dans l'exemple représenté, formé par un ressort de compression logé dans la cavité 66, entre le clapet 48 et un fond 84 de la cavité 66.The return member 50 is, in the example shown, formed by a compression spring housed in the cavity 66, between the valve 48 and a bottom 84 of the cavity 66.

Toujours en référence à la Figure 2, la vanne 40 comprend également une contreplaque 86 métallique disposée hors du corps 44 et mobile conjointement avec le clapet 48 de sorte à occuper une position proche du corps 44 lorsque le clapet 48 est fermé et une position à l'écart du corps 44 lorsque le clapet 48 est ouvert.Still referring to the Figure 2 , the valve 40 also comprises a metal plate 86 placed outside the body 44 and movable together with the valve 48 so as to occupy a position close to the body 44 when the valve 48 is closed and a position away from the body 44 when the valve 48 is open.

La contreplaque 86 est alignée longitudinalement avec le clapet 48, le clapet 48 étant interposé entre le siège 70 et ladite contreplaque 86.The counterplate 86 is aligned longitudinally with the valve 48, the valve 48 being interposed between the seat 70 and said counterplate 86.

La contreplaque 86 est en particulier solidaire en translation du clapet 48. A cet effet elle est, dans l'exemple représenté, venue de matière avec un arbre 87 monté, typiquement vissé, sur l'arbre 72, et s'étendant à travers une ouverture 88 débouchant dans le fond 84 de la cavité 66 et à l'extérieur du corps 44. En particulier, un joint 89 entoure ledit arbre 87 dans l'ouverture 88 et assure l'étanchéité entre la cavité 66 et l'extérieur du corps 44.The counterplate 86 is in particular integral in translation of the valve 48. For this purpose it is, in the example shown, made of material with a shaft 87 mounted, typically screwed onto the shaft 72, and extending through an opening 88 opening into the bottom 84 of the cavity 66 and outside the body 44. In particular, a seal 89 surrounds said shaft 87 in the opening 88 and seals between the cavity 66 and the outside of the body 44.

De retour à la Figure 1, le système de pilotage automatique 42 comprend un capteur 90 pour surveiller un paramètre, et un actionneur 92 (Figure 2) agissant sur la vanne 40 pour permuter automatiquement la vanne 40 de son état passant vers son état bloquant en fonction d'un signal produit par le capteur 90 et représentatif du paramètre surveillé.Back to the Figure 1 , the autopilot system 42 comprises a sensor 90 for monitoring a parameter, and an actuator 92 ( Figure 2 ) acting on the valve 40 to automatically switch the valve 40 from its state to its blocking state according to a signal produced by the sensor 90 and representative of the monitored parameter.

Le capteur 90 comprend une première partie 94 disposée dans l'enceinte de confinement 25, et une deuxième partie 96 disposée hors de l'enceinte de confinement 25.The sensor 90 comprises a first portion 94 disposed in the confinement enclosure 25, and a second portion 96 disposed outside the confinement enclosure 25.

La première partie 94 est propre à occuper un premier état en temps normal, et un deuxième état lorsque le paramètre surveillé vérifie une condition prédéterminée, ledit deuxième état étant propre au cas dans lequel ladite condition prédéterminée est vérifiée.The first part 94 is able to occupy a first state in normal time, and a second state when the monitored parameter satisfies a predetermined condition, said second state being specific to the case in which said predetermined condition is verified.

Le paramètre surveillé est ici constitué par un état de la pompe 22. La condition prédéterminée est alors que l'état de la pompe 22 soit un état prédéterminé, typiquement constitué par un état emballé de la pompe 22.The parameter monitored here consists of a state of the pump 22. The predetermined condition is then that the state of the pump 22 is a predetermined state, typically consisting of a packaged state of the pump 22.

En variante, le paramètre surveillé est constitué par :

  • un niveau du produit de revêtement 12 contenu dans le réservoir 20, la condition prédéterminée étant que ce niveau soit inférieur à une valeur prédéterminée,
  • un paramètre représentatif d'un niveau de fuite du produit de revêtement 12 au niveau du moteur de la pompe 22, notamment un paramètre représentatif d'un niveau de rendement de la pompe 22, comme par exemple un rapport entre le flux de produit 12 sortant de la pompe 22 et le flux de produit 12 entrant, la condition prédéterminée étant que ce rapport soit inférieur à une valeur prédéterminée, ou
  • un paramètre représentatif d'un niveau de fuite pneumatique au niveau du moteur de la pompe 22, comme par exemple le débit d'air consommé par ladite pompe 22, la condition prédéterminée étant que ce débit soit inférieur à une valeur prédéterminée.
In a variant, the monitored parameter consists of:
  • a level of the coating product 12 contained in the reservoir 20, the predetermined condition being that this level is lower than a predetermined value,
  • a parameter representative of a level of leakage of the coating product 12 at the motor of the pump 22, in particular a parameter representative of a level of efficiency of the pump 22, such as for example a ratio between the flow of product 12 exiting the pump 22 and the incoming product stream 12, the predetermined condition being that this ratio is less than a predetermined value, or
  • a parameter representative of a level of pneumatic leakage at the motor of the pump 22, such as the flow of air consumed by said pump 22, the predetermined condition being that this flow rate is less than a predetermined value.

La deuxième partie 96 est propre à générer un signal électrique lorsque la première partie 94 est dans son deuxième état, et exclusivement lorsque ladite première partie 94 est dans son deuxième état. Ainsi, la deuxième partie 96 est propre à générer un signal électrique lorsque la condition prédéterminée est vérifiée, et exclusivement lorsqu'elle est vérifiée.The second part 96 is able to generate an electrical signal when the first part 94 is in its second state, and exclusively when said first part 94 is in its second state. So the second part 96 is fit to generate an electrical signal when the predetermined condition is verified, and exclusively when it is verified.

L'actionneur 92 est raccordé électriquement au capteur 90 de manière à recevoir ledit signal électrique lorsqu'il est généré. A cet effet, une liaison électrique 98 relie électriquement l'actionneur 92 au capteur 90.The actuator 92 is electrically connected to the sensor 90 to receive said electrical signal as it is generated. For this purpose, an electrical connection 98 electrically connects the actuator 92 to the sensor 90.

En référence à la Figure 2, l'actionneur 92 est constitué d'une ventouse électromagnétique, en particulier une ventouse électromagnétique à aimant permanent, alignée longitudinalement avec la contreplaque 86, la contreplaque 86 étant interposée entre le clapet 48 et la ventouse, ladite ventouse étant disposée de sorte que, lorsque le clapet 48 est en position ouverte, la contreplaque 86 soit plaquée contre ladite ventouse et que, lorsque le clapet 48 est en position fermée, la contreplaque 86 soit à l'écart de ladite ventouse.With reference to the Figure 2 , the actuator 92 is constituted by an electromagnetic suction cup, in particular a permanent magnet electromagnetic suction cup, aligned longitudinally with the counterplate 86, the counterplate 86 being interposed between the valve 48 and the suction cup, said suction cup being arranged so that, when the valve 48 is in the open position, the counterplate 86 is pressed against said suction cup and that when the valve 48 is in the closed position, the counterplate 86 is away from said suction cup.

L'actionneur 92 présente ainsi, en l'absence de courant électrique, un état actif dans lequel il exerce sur la contreplaque 86 une force magnétique de sollicitation de la contreplaque 86 vers sa position plaquée contre l'actionneur 92 et, lorsqu'il est alimenté en courant électrique un état inactif dans lequel il n'exerce pas de telle force de sollicitation sur la contreplaque 86.The actuator 92 thus has, in the absence of electric current, an active state in which it exerts on the counterplate 86 a magnetic force for biasing the counterplate 86 towards its pressed position against the actuator 92 and, when supplied with an electric current in an inactive state in which it does not exert such a biasing force on the plate 86.

L'organe de rappel 50 et la force d'aimantation de l'actionneur 92 sont dimensionnés de sorte que, lorsque la contreplaque 86 est plaquée contre l'actionneur 92, la force de sollicitation exercée par l'actionneur 92 sur cette dernière soit supérieure à la force de rappel de l'organe de rappel 50. L'actionneur 92 est ainsi apte à retenir le clapet 48 dans sa position ouverte, la force de sollicitation formant, lorsque le clapet 48 est en position ouverte, une force de retenue du clapet 48 en position ouverte.The return member 50 and the magnetization force of the actuator 92 are dimensioned so that, when the counterplate 86 is pressed against the actuator 92, the biasing force exerted by the actuator 92 on the latter is greater than to the return force of the return member 50. The actuator 92 is thus able to hold the valve 48 in its open position, the biasing force forming, when the valve 48 is in the open position, a retaining force of valve 48 in the open position.

Par ailleurs, du fait de l'annulation de cette force de retenue lorsque l'actionneur 92 est alimenté en courant électrique, donc typiquement lorsqu'il reçoit le signal électrique généré par la deuxième partie 96 du capteur 90, l'annulation de cette force de retenue entraînant automatiquement le déplacement du clapet 48 vers sa position fermée sous l'effet de la seule force continuant à s'appliquer sur ledit clapet 48, à savoir la force de rappel de l'organe 50, l'actionneur 92 est adapté pour permuter automatiquement la vanne 40 de son état passant vers son état bloquant lorsqu'il reçoit le signal électrique généré par la deuxième partie 96 du capteur 90.Moreover, because of the cancellation of this retaining force when the actuator 92 is supplied with electric current, and therefore typically when it receives the electrical signal generated by the second portion 96 of the sensor 90, the cancellation of this force retaining automatically causing the displacement of the valve 48 to its closed position under the effect of the only force continuing to be applied on said valve 48, namely the restoring force of the member 50, the actuator 92 is adapted to automatically switch the valve 40 from its state to its blocking state when it receives the electrical signal generated by the second portion 96 of the sensor 90.

L'organe de rappel 50 et la force d'aimantation de l'actionneur 92 sont également dimensionnés de sorte que, lorsque le clapet 48 est fermé, la force de sollicitation exercée par l'actionneur 92 sur le contreplaque 86 soit inférieure à la force de rappel de l'organe de rappel 50. Ainsi, l'actionneur 92 n'est pas apte à déplacer le clapet 48 de sa position fermée vers sa position ouverte.The return member 50 and the magnetization force of the actuator 92 are also dimensioned so that, when the valve 48 is closed, the biasing force exerted by the actuator 92 on the counterplate 86 is less than the force return of the return member 50. Thus, the actuator 92 is not able to move the valve 48 from its closed position to its open position.

Afin de permettre le retour du clapet 48 en position ouverte, le système de régulation 38 comprend également, comme visible sur la Figure 2, un bouton 100 à actionnement manuel pour la permutation de la vanne 40 depuis son état bloquant vers son état passant. Ce bouton 100 est en particulier formé par un bouton poussoir aligné longitudinalement avec le clapet 48, le siège 70 étant interposé entre le clapet 48 et ledit bouton 100. Ainsi, une simple pression sur le bouton 100 provoque le déplacement du clapet 48 à l'écart du siège 70 et, de la sorte, permet de ramener le clapet 48 dans sa position ouverte.In order to allow the valve 48 to return to the open position, the regulation system 38 also comprises, as visible on the Figure 2 a manually actuated button 100 for switching the valve 40 from its blocking state to its on state. This button 100 is in particular formed by a push button aligned longitudinally with the valve 48, the seat 70 being interposed between the valve 48 and said knob 100. Thus, a simple pressure on the button 100 causes the displacement of the valve 48 to the 70 away from the seat and, in this way, to bring the valve 48 in its open position.

Grâce à l'invention décrite ci-dessus, il est ainsi possible d'éviter tout risque d'emballement de la pompe 22, celle-ci n'étant plus alimentée en gaz comprimé dès qu'elle commence à s'emballer. Cet objectif est atteint tout d'abord de manière économique, le système de régulation 38 étant de conception simple, mais également de manière fiable, puisque la permutation de la vanne 40 dans son état bloquant se fait sans risque de blocage.Thanks to the invention described above, it is thus possible to avoid any risk of runaway of the pump 22, it is no longer supplied with compressed gas as soon as it starts to pack. This objective is achieved first of all economically, the control system 38 being of simple design, but also reliably, since the permutation of the valve 40 in its blocking state is without risk of blockage.

Par ailleurs, l'invention permet un rétro-équipement facile et économique d'installation déjà existantes, puisqu'il suffit de leur installer le système de régulation 38.Furthermore, the invention allows an easy retrofit and economic installation already existing, since it is sufficient to install the control system 38.

Claims (15)

Installation de pompage (16) comprenant une pompe pneumatique (22) pour pomper un fluide (12) et un système (24) d'alimentation de la pompe pneumatique (22) en gaz comprimé, le système d'alimentation (24) comprenant une source (34) de gaz comprimé et une liaison fluidique (36) reliant fluidiquement la source (34) à la pompe pneumatique (22), caractérisée en ce que l'installation de pompage (16) comprend également un système (38) de régulation de l'alimentation de la pompe pneumatique (22) en gaz comprimé, ledit système de régulation (38) comprenant une vanne (40) montée sur la liaison fluidique (36) et permutable entre un état bloquant, dans laquelle la vanne (40) empêche la circulation de gaz comprimé entre la source (34) et la pompe pneumatique (22), et un état passant, dans laquelle la vanne (40) permet la circulation de gaz comprimé entre la source (34) et la pompe pneumatique (22).A pumping installation (16) comprising a pneumatic pump (22) for pumping a fluid (12) and a system (24) for supplying the pneumatic pump (22) with compressed gas, the supply system (24) comprising a source (34) of compressed gas and a fluidic connection (36) fluidly connecting the source (34) to the pneumatic pump (22), characterized in that the pumping installation (16) also comprises a control system (38) supplying the pneumatic pump (22) with compressed gas, said regulating system (38) comprising a valve (40) mounted on the fluidic connection (36) and switchable between a blocking state, wherein the valve (40) prevents the flow of compressed gas between the source (34) and the pneumatic pump (22), and an on state, in which the valve (40) permits the flow of compressed gas between the source (34) and the pneumatic pump (22). ). Installation de pompage (16) selon la revendication 1, dans laquelle le système de régulation (38) comprend un système (42) de pilotage automatique de la vanne (40), ledit système de pilotage automatique (42) comprenant un capteur (90) de surveillance d'un paramètre, et un actionneur (92) agissant sur la vanne (40) pour permuter automatiquement la vanne (40) de son état passant vers son état bloquant en fonction d'un signal produit par le capteur (90) et représentatif du paramètre surveillé.Pumping system (16) according to claim 1, wherein the control system (38) comprises a system (42) for automatically controlling the valve (40), said automatic control system (42) comprising a sensor (90) monitoring a parameter, and an actuator (92) acting on the valve (40) to automatically switch the valve (40) from its switched state to its blocking state based on a signal produced by the sensor (90) and representative of the monitored parameter. Installation de pompage (16) selon la revendication 2, dans laquelle le paramètre surveillé est constitué par un état de la pompe pneumatique (22).The pump system (16) of claim 2, wherein the monitored parameter is a state of the pneumatic pump (22). Installation de pompage (16) selon la revendication 3, dans laquelle le capteur (90) est propre à générer un signal électrique prédéterminé lorsqu'il détecte au moins un état prédéterminé de la pompe pneumatique (22), et l'actionneur (92) est raccordé électriquement au capteur (90) de manière à recevoir ce signal électrique lorsqu'il est généré, l'actionneur (92) étant en outre adapté pour permuter la vanne (40) de son état passant vers son état bloquant lorsqu'il reçoit ce signal électrique.A pump system (16) according to claim 3, wherein the sensor (90) is adapted to generate a predetermined electrical signal when it detects at least one predetermined state of the pneumatic pump (22), and the actuator (92) is electrically connected to the sensor (90) so as to receive this electrical signal when it is generated, the actuator (92) being further adapted to switch the valve (40) from its switched state to its blocking state when it receives this electrical signal. Installation de pompage (16) selon la revendication 4, dans laquelle l'état prédéterminé comprend un état emballé de la pompe pneumatique (22).The pumping installation (16) of claim 4, wherein the predetermined state comprises a packaged state of the pneumatic pump (22). Installation de pompage (16) selon l'une quelconque des revendications 2 à 5, dans laquelle la vanne (40) comprend un corps (44) définissant intérieurement un passage (46) pour le gaz comprimé, un clapet (48) monté mobile relativement au corps (44) entre une position fermée, dans laquelle il obture le passage (46), et une position ouverte, dans laquelle il libère le passage (46), et un organe (50) de rappel du clapet (48) vers sa position fermée, l'actionneur (92) étant propre à retenir le clapet (48) dans sa position ouverte.A pumping installation (16) according to any one of claims 2 to 5, wherein the valve (40) comprises a body (44) internally defining a passage (46) for the compressed gas, a relatively movably mounted valve (48) to the body (44) between a closed position, in which it closes the passage (46), and an open position, in which it releases the passage (46), and a member (50) for returning the valve (48) to its closed position, the actuator (92) being adapted to retain the valve (48) in its open position. Installation de pompage (16) selon la revendication 6, dans laquelle l'actionneur (92) présente un état actif dans lequel il exerce sur le clapet (48) ouvert une force de retenue du clapet (48) dans sa position ouverte, et un état inactif dans lequel l'actionneur (92) n'exerce pas de force de retenue sur le clapet (48) ouvert.A pumping installation (16) according to claim 6, wherein the actuator (92) has an active state in which it exerts a valve retaining force (48) on the open valve (48) in its open position, and a inactive state in which the actuator (92) does not exert a retaining force on the open valve (48). Installation de pompage (16) selon la revendication 7, dans laquelle l'actionneur (92) est apte à être dans son état actif lorsqu'il n'est pas alimenté en courant électrique, et dans son état inactif lorsqu'il est alimenté en courant électrique.A pumping installation (16) according to claim 7, wherein the actuator (92) is adapted to be in its active state when it is not energized, and in its inactive state when energized. Electric power. Installation de pompage (16) selon l'une quelconque des revendications 6 à 8, dans laquelle l'actionneur (92) comprend une ventouse électromagnétique, en particulier une ventouse électromagnétique à aimant permanent.A pumping installation (16) according to any one of claims 6 to 8, wherein the actuator (92) comprises an electromagnetic plunger, in particular an electromagnetic permanent magnet plunger. Installation de pompage (16) selon la revendication 9, dans laquelle la vanne (40) comprend une contreplaque (86) métallique mobile conjointement avec le clapet (48) de sorte à être plaquée contre la ventouse électromagnétique lorsque le clapet (48) est ouvert, et à être à l'écart de la ventouse électromagnétique lorsque le clapet (48) est fermé, la ventouse électromagnétique étant apte à exercer sur la contreplaque (86) lorsque l'actionneur (92) est dans son état actif une force de sollicitation de la contreplaque (86) vers sa position plaquée, ladite force de sollicitation étant supérieure à la force de rappel lorsque le clapet (48) est ouvert et étant inférieure à la force de rappel lorsque le clapet (48) est fermé.A pumping installation (16) according to claim 9, wherein the valve (40) comprises a metal counterplate (86) movable together with the valve (48) so as to be pressed against the electromagnetic plunger when the valve (48) is open , and to be away from the electromagnetic pad when the valve (48) is closed, the electromagnetic pad being able to exert on the plywood (86) when the actuator (92) is in its active state a biasing force from the plywood (86) to its plated position, said biasing force being greater than the restoring force when the valve (48) is open and being less than the restoring force when the valve (48) is closed. Installation de pompage (16) selon l'une quelconque des revendications 6 à 10, dans laquelle le clapet (48) est monté mobile relativement au corps (44) en translation selon une direction longitudinale (L) entre ses positions ouverte et fermée.Pumping installation (16) according to any one of claims 6 to 10, wherein the valve (48) is movably mounted relative to the body (44) in translation in a longitudinal direction (L) between its open and closed positions. Installation de pompage (16) selon l'une quelconque des revendications précédentes, dans laquelle le système de régulation (38) comprend un bouton (100) à actionnement manuel, en particulier un bouton poussoir, pour la permutation de la vanne (40) depuis son état bloquant dans son état passant.Pump installation (16) according to any of the preceding claims, wherein the control system (38) comprises a manually operated button (100), in particular a push button, for switching the valve (40) from his blocking state in his passing state. Installation de pompage (16) selon l'une quelconque des revendications précédentes, comprenant une enceinte de confinement (25) dans laquelle la pompe pneumatique (22) est installée, la vanne (40) étant disposée hors de ladite enceinte de confinement (25).Pumping installation (16) according to any one of the preceding claims, comprising a containment enclosure (25) in which the pneumatic pump (22) is installed, the valve (40) being disposed outside said confinement enclosure (25) . Installation de pompage (16) selon l'une quelconque des revendications précédentes, comprenant un réservoir (20), en particulier un bidon, contenant le fluide (12), la pompe pneumatique (22) étant apte à pomper le fluide (12) contenu dans ledit réservoir (20).Pump installation (16) according to any one of the preceding claims, comprising a reservoir (20), in particular a container, containing the fluid (12), the pneumatic pump (22) being able to pump the fluid (12) contained in said tank (20). Installation (10) de projection d'un produit de revêtement sur une surface à revêtir, comprenant un applicateur (14) pour la projection du produit de revêtement sur la surface à revêtir, et une installation de pompage (16) selon l'une quelconque des revendications précédentes pour le pompage du produit de revêtement et l'alimentation de l'applicateur (14) avec ledit produit de revêtement.Apparatus (10) for projecting a coating product onto a surface to be coated, comprising an applicator (14) for projecting the coating product onto the surface surface to be coated, and a pumping installation (16) according to any one of the preceding claims for pumping the coating product and supplying the applicator (14) with said coating product.
EP18207300.7A 2017-11-20 2018-11-20 Pumping system comprising a pneumatic pump and a valve for controlling the compressed gas supply to the pump Active EP3486483B1 (en)

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FR1760919A FR3073906A1 (en) 2017-11-20 2017-11-20 PUMPING APPARATUS COMPRISING A PNEUMATIC PUMP AND A VALVE FOR REGULATING THE SUPPLY OF THE COMPRESSED GAS PUMP

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JP (1) JP7228995B2 (en)
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CN110748476A (en) * 2019-11-14 2020-02-04 张云轩 Air compressor air pressure airflow control method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1124528A (en) * 1955-04-05 1956-10-12 Liquid pump running on compressed gas
US4934598A (en) * 1988-07-12 1990-06-19 Wagner International Ag Safety shut-down device for two-component sprayer systems
US5174722A (en) * 1991-08-09 1992-12-29 Bomar Corporation Safety shutdown circuit for pneumatic pump system
US20160377074A1 (en) * 2015-06-29 2016-12-29 Carlisle Fluid Technologies, Inc. Runaway valve system for a pump

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5667380U (en) * 1979-10-29 1981-06-04
JPH067890B2 (en) * 1987-02-04 1994-02-02 倉敷紡績株式会社 Circulation system monitoring device
US4981418A (en) * 1989-07-25 1991-01-01 Osmonics, Inc. Internally pressurized bellows pump
CN1257353C (en) * 2001-08-31 2006-05-24 工学博士马里奥·科扎尼有限责任公司 Valve for controlling large cross sectional flow of compressor or similarities
US6640556B2 (en) * 2001-09-19 2003-11-04 Westport Research Inc. Method and apparatus for pumping a cryogenic fluid from a storage tank
US9158308B2 (en) * 2011-05-13 2015-10-13 Fluke Corporation Apparatus using electronically-controlled valves
US20120315163A1 (en) * 2011-06-13 2012-12-13 Mi Yan Air-driven hydraulic pump with pressure control
CN102758768A (en) * 2012-07-23 2012-10-31 王文海 Water pump outlet pneumatic butterfly valve system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1124528A (en) * 1955-04-05 1956-10-12 Liquid pump running on compressed gas
US4934598A (en) * 1988-07-12 1990-06-19 Wagner International Ag Safety shut-down device for two-component sprayer systems
US5174722A (en) * 1991-08-09 1992-12-29 Bomar Corporation Safety shutdown circuit for pneumatic pump system
US20160377074A1 (en) * 2015-06-29 2016-12-29 Carlisle Fluid Technologies, Inc. Runaway valve system for a pump

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US10954934B2 (en) 2021-03-23
EP3486483B1 (en) 2020-04-08
KR20190058349A (en) 2019-05-29
FR3073906A1 (en) 2019-05-24
JP2019094898A (en) 2019-06-20
CN110030183A (en) 2019-07-19
JP7228995B2 (en) 2023-02-27
CN110030183B (en) 2022-05-06
US20190154028A1 (en) 2019-05-23

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