WO2015113593A1 - Dispositif pour mélanger un agent de nettoyage liquide à un liquide de nettoyage - Google Patents

Dispositif pour mélanger un agent de nettoyage liquide à un liquide de nettoyage Download PDF

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Publication number
WO2015113593A1
WO2015113593A1 PCT/EP2014/051657 EP2014051657W WO2015113593A1 WO 2015113593 A1 WO2015113593 A1 WO 2015113593A1 EP 2014051657 W EP2014051657 W EP 2014051657W WO 2015113593 A1 WO2015113593 A1 WO 2015113593A1
Authority
WO
WIPO (PCT)
Prior art keywords
injector
channel
cleaning liquid
cleaning
liquid
Prior art date
Application number
PCT/EP2014/051657
Other languages
German (de)
English (en)
Inventor
Thomas Fiack
Original Assignee
Alfred Kärcher Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfred Kärcher Gmbh & Co. Kg filed Critical Alfred Kärcher Gmbh & Co. Kg
Priority to PCT/EP2014/051657 priority Critical patent/WO2015113593A1/fr
Publication of WO2015113593A1 publication Critical patent/WO2015113593A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3125—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characteristics of the Venturi parts
    • B01F25/31251—Throats
    • B01F25/312511—Adjustable Venturi throat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31242—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10—Maintenance of mixers
    • B01F35/145—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means
    • B01F35/1452—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means using fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
    • B01F35/718051—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings being adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
    • B01F35/833—Flow control by valves, e.g. opening intermittently

Definitions

  • the invention relates to a device for adding a liquid cleaning agent to a cleaning liquid with an injector, which has an injector inlet for supplying the cleaning liquid and an injector outlet for dispensing a mixture of cleaning liquid and liquid cleaning agent, wherein the injector inlet via a flow narrowing in the injector channel is connected to the Injektorauslass and opens into the injector channel in a region with a narrowed flow cross-section, a suction channel, and wherein the cleaning liquid per unit time can be added admixable amount of detergent is controllable.
  • Such devices are used for example in high-pressure cleaning devices with which a cleaning fluid, usually water, can be pressurized.
  • the cleaning liquid can be mixed by means of the devices in question, a liquid detergent, such as a soap solution.
  • the mixture of cleaning fluid and cleaning agent can then be directed to an object to be cleaned.
  • the admixing of the liquid cleaning agent to the pressurized cleaning liquid is effected by means of an injector having an injector inlet for supplying the pressurized cleaning liquid and an injector outlet for discharging the mixture of cleaning liquid and cleaning agent.
  • the injector inlet is connected to the Injektorauslass via an injector channel, and the injector channel has a region with a narrowed flow cross-section, into which a suction channel of the injector opens. If the injector channel flows through cleaning liquid, a negative pressure forms in the region of the constriction of the injector channel and thus in the mouth region of the suction channel, with the aid of which the liquid Detergent example, can be sucked from a reservoir.
  • the liquid detergent mixes with the cleaning fluid so that the mixture can be dispensed through the injector outlet.
  • the liquid cleaning agent may in this case have a strongly fluctuating viscosity, without the admixture being impaired, since it can be sucked out of the reservoir with the aid of the injector.
  • EP 1 852 190 B1 proposes an actuating element with different passage openings for the stepwise adjustment of the detergent admixture.
  • a changeover valve for admixing a liquid cleaning agent to a cleaning liquid with a rotationally symmetrical valve body arranged in a flow channel of a valve housing about a rotational axis aligned perpendicular to the longitudinal axis of the flow channel between a washing position and an injection position rotated by 90 ° and is movably mounted.
  • the valve body is penetrated by a washing channel with a relatively large flow cross-section and by an injection channel perpendicularly crossing the injection channel with a significantly smaller flow cross-section.
  • the wash channel In the wash position of the valve body, the wash channel is aligned with the flow passage of the valve body, and in the injection position of the valve body, the injection passage is aligned with the flow passage of the valve body.
  • a liquid detergent is sucked into the injection channel via the washing channel and admixed with the cleaning liquid which flows through the injection channel of the valve housing.
  • the cleaning liquid flows through the washing channel, without liquid detergent is sucked.
  • the user thus has the option, with the help of the change-over valve, optionally to allow or to prevent an admixture of liquid detergent.
  • a targeted Dosing the amount of detergent that is added to the cleaning liquid per unit time, however, is not possible by means of the switching valve.
  • Object of the present invention is to develop a device of the type mentioned in such a way that the amount of detergent, which is the cleaning liquid per unit time is added steplessly adjustable.
  • the device has a Injektorfigurationkanal, in which a supply channel for detergent opens and in which the injector about a coaxially aligned with the injector axis of rotation between a first rotational position and a second rotational position continuously out and is held rotatable ago.
  • an injector is used, which is rotatably mounted in an injector receiving channel about its longitudinal axis.
  • the injector receiving channel opens a supply channel for liquid detergent.
  • the suction channel of the injector is the supply channel more or less facing or facing away.
  • the apparatus can thus be metered continuously by positioning the injector in a desired rotational position of the intake flow.
  • the intake volume flow can be reduced to zero in order to prevent an admixture of detergent.
  • the device according to the invention can have a very compact design and can be of simple construction, wherein the intake volume flow of the liquid cleaning agent is reproducible and continuously adjustable.
  • the suction channel is in alignment with the open position
  • the injector is rotatable by at least 90 °.
  • the suction channel of the injector In a first rotational position, the suction channel of the injector can be aligned in alignment with the supply channel, and in the second rotational position of the injector, the suction channel can be aligned perpendicular to the supply channel.
  • the injector is rotatable by at least 180 °. This makes it possible to align the suction channel in the first rotational position of the injector aligned with the supply channel, and in the second rotational position of the injector, the suction channel can be arranged on the supply channel diametrically opposite side of the injector.
  • the injector is surrounded at the level of the supply channel by a circumferentially extending over a portion of the injector throttle gap.
  • the liquid cleaning agent from the supply channel via the throttle gap to the suction channel of the injector reach, if the input of the suction channel occupies a position within the throttle gap.
  • the Position of the injector is the flow connection from the supply channel to the suction channel over a more or less long portion of the throttle gap. The longer this section of the throttle gap, the larger the flow losses of the cleaning agent and the lower the intake volume flow.
  • the throttle gap surrounds the injector at the level of the supply channel on the feed channel side facing.
  • the throttle gap extends in the circumferential direction of the injector over at least 90 °, in particular over at least 180 °.
  • the throttle gap extends over a maximum of 270 °.
  • the throttle gap is designed sickle-shaped.
  • a structurally particularly simple embodiment is achieved in an advantageous embodiment of the invention in that the Injektoritkanal at the level of the feed channel has an asymmetrical with respect to the longitudinal axis of the feed channel radial extension, which forms the throttle gap.
  • the inlet of the suction channel arrives in a region with a more or less large flow cross-section of the throttle gap, which is designed in the form of an asymmetrical radial extension of the injector receiving channel.
  • the feed channel opens into the asymmetric radial extension of the injector receiving channel.
  • the supply channel is aligned perpendicular to the longitudinal axis of the Injektorfactals.
  • the injector is rotationally symmetrical relative to the longitudinal axis of the injector receiving channel, wherein the axis of symmetry of the injector is aligned coaxially with the longitudinal axis of the injector receiving channel.
  • rotational movement of the injector does not change the orientation of the injector channel relative to the longitudinal axis of the injector receiving channel.
  • the asymmetric radial extension of the injector receiving channel at the level of the supply channel has the consequence that a more or less large throttling action is exerted on the aspirated liquid cleaning agent by the asymmetric radial expansion depending on the rotational position of the injector, so that the intake volume flow by positioning the injector can be changed continuously in a desired rotational position in a very simple manner.
  • the supply of cleaning fluid and the supply of liquid detergent can be switched off.
  • the metering of the cleaning liquid which can be supplied to the injector can take place, for example, in that the injector forms a valve seat to which a closing body, which can be moved back and forth in the axial direction between a closed position and an open position, can be sealingly engaged in the closed position in relation to the longitudinal axis of the injector receiving channel.
  • a closing body which can be moved back and forth in the axial direction between a closed position and an open position, can be sealingly engaged in the closed position in relation to the longitudinal axis of the injector receiving channel.
  • a maximum amount of cleaning liquid per unit time can reach the injector.
  • the amount of cleaning liquid that can be supplied to the injector per unit time and the amount of liquid cleaning agent that can be added per unit time of the cleaning liquid are synchronously continuously metered. This makes it possible to change the amount of cleaning liquid which can be supplied to the injector per unit of time simultaneously with the amount of liquid cleaning agent which can be added to the cleaning liquid per unit time. Starting, for example, from a state in which no cleaning liquid supplied to the injector and no liquid detergent can be mixed, the volume flow of the cleaning liquid and the intake volume flow of the liquid detergent can be increased continuously up to a maximum value.
  • the device comprises a movable actuator for simultaneously rotating the injector and axially moving a cooperating with a valve seat of the injector closing body.
  • the actuator allows synchronous dosing of the volume flow of the cleaning liquid and the Ansaugvolumenstroms the liquid detergent.
  • the injector in the injector receiving channel can be rotated about its longitudinal axis by means of the actuator and at the same time a closing body, which cooperates with a valve seat formed by the injector, in the axial direction relative to the longitudinal axis of the Injektorfactals be moved.
  • the actuator has a tappet which is rotatable about the longitudinal axis of the injector receiving channel in the injector receiving channel and movably mounted in the longitudinal direction of the injector receiving channel and which is non-rotatably and axially movably connected to the injector and forms the closing body.
  • the non-rotatable connection between the plunger and the injector ensures that a rotational movement of the plunger is reliably transmitted to the injector, so in that the suction channel of the injector can assume a desired orientation relative to the supply channel.
  • the plunger can not only be rotated about the longitudinal axis of the Injektorabilitykanals, but it can also be offset in the direction of the longitudinal axis of the Injektorabilitykanals. This gives the possibility of the closure member formed by the plunger in a
  • the non-rotatable and axially movable connection between the plunger and the injector may, for example, via at least one with respect to the longitudinal axis of the Injektor innovationkanals radially aligned rib and the rib receiving and aligned parallel to the longitudinal axis of the Injektorfactals aligned slot.
  • the rib may be submerged in the slot to provide a non-rotatable connection over the rib and slot, but the rib is movable along the slot and thus axially relative to the longitudinal axis of the injector receiving channel.
  • At least one rib aligned radially with respect to the longitudinal axis of the injector receiving channel is disposed on the plunger and the injector has at least one slot receiving the rib and aligned coaxially with the longitudinal axis of the injector receiving channel, into which the rib is inserted.
  • the plunger has two diametrically opposed, radially outwardly pointing ribs, each immersed in a slot formed complementary to the rib of the injector, which receives the respective rib axially movable.
  • the plunger has a conical section which forms the closing body and, in a closed position, can be placed sealingly against a conical valve seat of the injector.
  • the conical valve seat may be formed, for example, by a section of the injector channel that narrows continuously in the flow direction of the cleaning fluid.
  • the actuator is rotatably connected in an advantageous embodiment of the invention with a manually operable knob and screwed into a housing of the device.
  • the actuator is thus designed according to a kind of adjusting screw, which carries a knob and can be converted by the user into a desired rotational position.
  • the adjusting screw is rotatably connected to the injector and axially movable, so that the injector can be rotated by the user via the adjusting screw.
  • the intake volume flow of the liquid cleaning agent can be dosed by turning the screw in a simple manner.
  • the adjusting screw forms a closing body, which can be moved in the axial direction relative to a valve seat, so that the volume flow of the cleaning fluid can be metered by an axial movement of the adjusting screw.
  • the floor cleaner makes it possible to apply a cleaning liquid, for example water, under pressure to a floor surface to be cleaned, and at the same time a mixture of cleaning liquid and liquid cleaning agent, for example a mixture of water and a soap solution, can be applied to the floor surface to be cleaned.
  • a cleaning liquid for example water
  • a mixture of cleaning liquid and liquid cleaning agent for example a mixture of water and a soap solution
  • the device according to the invention has a cleaning liquid channel which extends from a cleaning liquid inlet to a cleaning liquid outlet and which crosses the Injektorabilitykanal upstream of the injector.
  • a high-pressure cleaning device can be connected to the cleaning fluid inlet, which provides cleaning fluid under pressure to the cleaning fluid inlet.
  • the pressurized cleaning liquid is then supplied to a first part via the cleaning liquid channel directly to the cleaning liquid outlet, and to a second part, the provided cleaning liquid is supplied to the injector, so that liquid detergent can be mixed.
  • the injector receiving passage crosses the cleaning fluid passage upstream of the injector. A part of the cleaning liquid provided to the cleaning liquid inlet thus bypasses the cleaning liquid outlet and instead reaches the injector.
  • the device according to the invention preferably has a housing with a first through-channel forming the cleaning fluid channel and with a second through-channel crossing the first through-channel and forming the injector receiving channel, the supply channel opening into the second through-channel at the level of the suction channel of the injector.
  • the second passage is advantageously aligned perpendicular to the first passage.
  • the feed channel is conveniently aligned parallel to the first through channel.
  • the first through-channel has an inlet section with a constant flow cross-section and an outlet section with a constant flow cross-section and an intermediate section arranged between the inlet section and the outlet section with a flow cross-section which changes in the flow direction.
  • the intermediate section is crossed by the second through-channel.
  • the second passageway forms the Injektoritkanal, which is conveniently followed by an outlet channel for the mixture of cleaning liquid and liquid detergent.
  • the transition from the injector receiving channel to the outlet channel may be via a radially inwardly directed step at which the injector conveniently abuts.
  • the flow cross-section of the outlet channel increases in an advantageous embodiment of the invention in the flow direction of the mixture of cleaning liquid and liquid detergent.
  • the second through-channel has an inlet section facing away from the outlet channel, which carries an internal thread which cooperates with an external thread of an actuator of the device designed as a set screw.
  • Figure 1 is a sectional view of an apparatus for mixing a liquid cleaning agent to a cleaning liquid, wherein a control element occupies a first position;
  • Figure 2 is a sectional view of the device of Figure 1 along the line 2-2.
  • Figure 3 is a sectional view corresponding to Figure 1, wherein the actuating body occupies a second position;
  • Figure 4 is a sectional view of the device of Figure 3 along the line 4-4;
  • FIG. 5 is a perspective view of the control element from FIG. 1 and an injector interacting with it
  • FIG. 6 is a perspective view of the injector of FIG. 5.
  • the device is generally designated by the reference numeral 10 and comprises a housing 12, which has a first through-channel 14 and a second through-channel 16.
  • the second passageway 16 is aligned perpendicular to the first passageway 14 and crosses the first passageway 14.
  • the first through-channel 14 forms a cleaning liquid channel 18, which extends from a cleaning liquid inlet 20 to a cleaning liquid outlet 22. It has an inlet section 24 with a constant flow cross section and an outlet section 26 with a constant flow cross section. Between the input portion 24 and the output portion 26, an intermediate portion 28 is arranged, which is crossed longitudinally in the middle of the second passage 16 passage. In the region between the inlet section 24 and the second through-channel 16, the flow cross-section of the intermediate section decreases. Section 28 in the flow direction continuously, and in the area between the second passage 16 and the output portion 26, the flow area of the intermediate portion 28 widens continuously.
  • the housing 12 has at a small distance to the cleaning fluid inlet 20, a first annular groove 30 in which a first sealing ring 32 is arranged. At a small distance to the cleaning liquid outlet 22, the housing 12 has a second annular groove 34, in which a second sealing ring 36 is arranged.
  • a cleaning device in particular a floor cleaning device can be connected to the cleaning fluid outlet 22, which can be supplied by the high-pressure cleaning device via the cleaning liquid 18 with pressurized cleaning liquid ,
  • the second through-channel 16 has a first channel section 38, which carries an internal thread 40 and merges via a conical second channel section 42 into a cylindrical third channel section 44.
  • the third channel section 44 intersects the intermediate section 28 of the cleaning liquid channel 18 and extends to a radially inwardly directed step 46, to which a fourth channel section 48 of the second through channel 16 adjoins.
  • the fourth channel portion 48 expands continuously and opens into an outlet 50.
  • the housing 12 forms at the level of the fourth channel portion 48 from a connection nipple 52 to which an outlet hose, not shown in the drawing can be connected.
  • a supply channel 54 of the housing 12 opens into the third channel section.
  • the housing 12 forms, at the level of the supply channel 54, a further connection nipple 56, to which a supply hose (not shown in the drawing) can be connected.
  • the second passage 16 receives an actuator 58, which is designed in the manner of a screw and in the region of the first channel portion 38 carries an external thread 60 which cooperates with the internal thread 40 of the second passage channel 16.
  • the actuator 58 is shown enlarged in FIG.
  • the actuator 58 forms a plunger 62, which has a third annular groove 64 in the region between the conical second channel section 42 and the intermediate section 28 of the first through-channel 14, in which a third sealing ring 66 is arranged.
  • the plunger 62 emerges with its end portion 68 facing away from the external thread 60 into an injector 70, which is rotatably mounted in the third channel section 44 and bears against the step 46 with an end face 72.
  • the injector 70 is designed to be rotationally symmetrical with respect to a longitudinal axis 74 of the third channel section 44.
  • the third channel portion 44 forms an injector receiving channel 76.
  • the injector 70 has a coaxially to the longitudinal axis 74 aligned injector channel 78, which extends from a cleaning liquid channel 18 facing Injektorein passage 80 to a arranged on the end face 72 Injektorauslass 82.
  • the injector outlet 82 is adjoined by the fourth channel section 48, which widens continuously in the flow direction.
  • the injector channel 78 narrows in the direction of flow, and a suction channel 84 of the injector 70 which is radially aligned relative to the longitudinal axis 74 opens into a region with a narrowed flow cross section of the injector channel 78.
  • the injector 70 facing the tappet 62 has two diametrically opposite longitudinal slots 86, 88, into each of which a radially outwardly directed rib 90, 92 of the tappet 62 dips.
  • the injector 70 has a fourth annular groove 94, in which a fourth sealing ring 96 is arranged.
  • the ribs 90, 92 and the longitudinal slots 86, 88 make it possible to transmit a rotational movement of the plunger 62 about the longitudinal axis 74 to the injector 70, so that the injector 70 can be rotated about the longitudinal axis 74 by means of the plunger 62.
  • the orientation of the suction channel 84 relative to the feed channel 54 can be changed. This will be explained in more detail below.
  • the injector channel 78 has a radial extension 98 which is asymmetrical with respect to the longitudinal axis 74 and extends in
  • Circumferential direction extends over a portion of the injector 70. This becomes clear in particular from FIGS. 2 and 4.
  • the radial extension 98 forms a crescent-shaped gap 100 which is sickle-shaped in the sectional views of FIGS. 2 and 4 and which surrounds the injector 70 in the circumferential direction over an angular range of approximately 270 °.
  • the supply channel 54 is connected via the throttle gap 100 with the suction channel 84 in flow communication.
  • the device 10 has a rotatably connected to the actuator 58 knob 102 which can be grasped by the user by hand.
  • the actuator 58 and consequently also the plunger 62 can be rotated about the longitudinal axis 74 and moved relative to the longitudinal axis 74 in the axial direction.
  • plunger 62 dips into injector channel 78 of injector 70.
  • the plunger 62 forms within the injector 78 a conical closing body 104, which is sealingly engageable in a closed position shown in Figure 3 to a conical valve seat 106 of the injector 78.
  • the closing body 104 can be axially offset by turning the actuator 58 in the direction away from the valve seat 106, so that it assumes an open position shown in Figure 1, in which it occupies a distance from the valve seat 106.
  • the device 10 makes it possible to provide both a pressurized cleaning fluid and a mixture of cleaning fluid and liquid cleaning agent.
  • a portion of the cleaning liquid flowing into the cleaning liquid channel 18 via the cleaning liquid inlet 20 is fed directly to the cleaning liquid outlet 22 via the cleaning liquid channel 18.
  • the remaining part of the pressurized cleaning liquid passes via the input section 24 and a first region of the intermediate section 28 into the Injektoritkanal 76 and through this to the injector 70 and flows through the injector channel 78.
  • This has the consequence that via the suction channel 84, the throttle gap 100th and the supply channel 54 liquid cleaning agent can be sucked, which can be supplied to the device 10 via a supply hose connected to the connection nipple 56.
  • a mixture of cleaning liquid and liquid cleaning agent can then flow through the fourth channel section 48, which forms an outlet channel for the mixture of cleaning liquid and liquid cleaning agent.
  • the mixture can be dispensed via an outlet hose connected to the connection nipple 52 and, for example, supplied to a floor cleaning device, which is also supplied with cleaning fluid via the cleaning fluid channel 18.
  • the actuator 58 is rotated starting from its closed position by 180 ° relative to the longitudinal axis 74 in its open position shown in Figures 1 and 2, the suction channel 84 is aligned with the supply channel 54 and at the same time takes the closing body 104 an axial distance from the valve seat 106 a , In this position, the cleaning liquid supplied to the injector 70 has a maximum volume flow and also the intake volume flow of the liquid cleaning agent is maximum. Between these two rotational positions, the actuator 58 can be adjusted continuously, so that both the volume flow of the cleaning fluid and the Ansaugvolumenstrom the liquid detergent can take any intermediate value between the maximum value and the value zero.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

L'invention concerne un dispositif (10) servant à mélanger un agent de nettoyage liquide à un liquide de nettoyage au moyen d'un injecteur (70) qui comporte une entrée d'injecteur (80) servant à amener le liquide de nettoyage et une sortie d'injecteur (82) servant à évacuer un mélange de liquide de nettoyage et d'agent de nettoyage, l'entrée d'injecteur (80) étant relié, par le biais d'un conduit d'injecteur (78) se rétrécissant dans le sens d'écoulement (78), à la sortie d'injecteur (82) et un conduit d'aspiration (84) débouchant dans le conduit d'injecteur (78) dans une zone de section transversale d'écoulement rétrécie, et la quantité d'agent de nettoyage pouvant être mélangée au liquide de nettoyage par unité de temps pour être commandée. Selon l'invention, pour perfectionner le dispositif de façon à régler en continu la quantité d'agent de nettoyage qui peut être mélangé au liquide de nettoyage par unité de temps, le dispositif (10) comprend un conduit de réception d'injecteur (76) dans lequel débouche un conduit d'amenée (54) destiné au liquide de nettoyage et l'injecteur (70) est maintenu de façon à pouvoir effectuer un mouvement de rotation alternatif en continu autour d'un axe de rotation orienté coaxialement à l'axe longitudinal (74) du conduit de réception d'injecteur (76) entre une première position de rotation et une seconde position de rotation.
PCT/EP2014/051657 2014-01-28 2014-01-28 Dispositif pour mélanger un agent de nettoyage liquide à un liquide de nettoyage WO2015113593A1 (fr)

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PCT/EP2014/051657 WO2015113593A1 (fr) 2014-01-28 2014-01-28 Dispositif pour mélanger un agent de nettoyage liquide à un liquide de nettoyage

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PCT/EP2014/051657 WO2015113593A1 (fr) 2014-01-28 2014-01-28 Dispositif pour mélanger un agent de nettoyage liquide à un liquide de nettoyage

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3338173A (en) * 1965-07-21 1967-08-29 Jr Rudolph M Gunzel Variable fluid proportioner
GB1320746A (en) * 1970-12-02 1973-06-20 Chubb Fire Security Ltd Apparatus for introducing foam-stabilising solutions into water streams
US4121773A (en) * 1977-03-28 1978-10-24 Headen James J Shower head dispenser
EP0489678B1 (fr) 1990-12-05 2002-04-17 Scanio Flow-Equipment A/S Equipement de nettoyage
WO2002036267A1 (fr) * 2000-10-30 2002-05-10 Bruce Alan Whiteley Melangeur de fluides equipe d'un tube plongeur rotatif et d'orifices calibres
DE20214179U1 (de) 2002-09-11 2003-10-16 Syntecs Gmbh Reinigungssysteme Bodenreiniger, insbesondere als Zusatzgerät für Hochdruckreiniger
EP1663533B1 (fr) 2003-09-08 2011-06-15 Alfred Kärcher GmbH & Co. KG Injecteur et systeme de production de mousse comprenant ledit injecteur
EP1852190B1 (fr) 2006-05-05 2011-07-27 Suttner GmbH Générateur de mousse

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3338173A (en) * 1965-07-21 1967-08-29 Jr Rudolph M Gunzel Variable fluid proportioner
GB1320746A (en) * 1970-12-02 1973-06-20 Chubb Fire Security Ltd Apparatus for introducing foam-stabilising solutions into water streams
US4121773A (en) * 1977-03-28 1978-10-24 Headen James J Shower head dispenser
EP0489678B1 (fr) 1990-12-05 2002-04-17 Scanio Flow-Equipment A/S Equipement de nettoyage
WO2002036267A1 (fr) * 2000-10-30 2002-05-10 Bruce Alan Whiteley Melangeur de fluides equipe d'un tube plongeur rotatif et d'orifices calibres
DE20214179U1 (de) 2002-09-11 2003-10-16 Syntecs Gmbh Reinigungssysteme Bodenreiniger, insbesondere als Zusatzgerät für Hochdruckreiniger
EP1663533B1 (fr) 2003-09-08 2011-06-15 Alfred Kärcher GmbH & Co. KG Injecteur et systeme de production de mousse comprenant ledit injecteur
EP1852190B1 (fr) 2006-05-05 2011-07-27 Suttner GmbH Générateur de mousse

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