FR2674841A1 - Antideflagrating and antifoaming method of transferring a fluid using an immersed interactive metering pipe - Google Patents

Abstract

The method allows the accurate metering and filling of tanks in which the neck acts as a support for the sliding and lockable flange (7) of a pipe (5) fitted with a sensor (3) which detects the upper level of the fluid and, once this level has been reached, generates a signal to automatically close the operating valve (2), the opening of which can be triggered manually or by the control system. The combined effect on the fluid of its exiting laterally through the apertures (17), of the braking action of the rim (19) of the apertures, of the damping cavity (18), of the partly conical profile (24) of the movable shut-off member (20) fitted with decompression grooves (23), is superimposed on the interactive action of the walls of the tank, in order to make the method an antifoaming one. Enclosing the sensor in an insulator (16), covering up the sensor with the movable shut-off member and distancing the assembly from the equipment plant, make the method an antideflagrating one. The method concerns manufacturers, packagers, dealers, users, laboratories or factories handling highly reactive (hazardous, corrosive) or sensitive fluids.

Description

 The present invention relates to an explosion-proof and defoaming fluid transfer method with a submerged interactive dosing rod, making it possible to fill various reservoirs with very high precision and very high security.

 Several equipment already known transfer fluids using plunging rods to enter the destination tanks and volumetric valves to deliver the required quantities of fluids.

 - The objective of maximum lightening of the diving rod to facilitate the work of the operator caused the maximum of pumping, metering, valve, control components to be removed from the rod. Unfortunately, on the one hand, the machines supplying the plunging rod by flexible piping have become bulky, heavy and difficult to move, on the other hand, the offset of the control and command members causes a risk of significant error to trigger a transfer. of fluid with an inappropriate adjustment as to the volume of the destination reservoir and as to the availability of reception of said reservoir.

 - The objective of maximum lightening of the plunging rod and obtaining the maximum output of flow guided the technological choices on the use of the complete section of the end of the rod, on the removal of any obstacle which could hamper the advancement of the fluid and on an acceleration of the fluid to make it possible to reduce the diameter and, consequently, the size and the weight of the rod. Unfortunately, the kinetic energy of the fluid, in the configuration of the known equipment, causes turbulence and foaming harmful to the addition and use of measurement sensors, the technology being faced with the following dilemma: accept a loss of precision of said measurements if they are to be performed and used in time real, or accept an imprecise and random loss of time if these must be executed and used in deferred time, after disappearance of the foams and turbulence es.

 The process which is the subject of the invention proposes to remedy the insufficiencies of compactness, mobility, security and precision measurements, and to promote access to additional services, optional or not.

The explosion-proof fluid transfer process and
defoamer with submerged interactive dosing stick, according to
the invention stands out in that it implements the following phases through a central equipment
fixed or mobile connected to one or more rod (s) by a
or more piping (s):
- A: Opening of a general safety valve suitable for
cut the general fluid transfer circuit;
- B: Connection of the equipment center and the manual and / or pilot operated working valve, and
of the sensor (s) connected to said valve, sensor (s) and valve being placed on the rod (s) and on the pipe (s); - C: Presentation of the end of one or more rod (s) in front of the neck of the reservoir (s) to be filled, and first presetting of the insertion depth of a command sensor fitted to each aforementioned rod, by presetting a special stop; - D: First preset of the equipment center on the sole volumetric or weight criteria of the liquid to be transferred; - E: Order for manual initiation or not of a pumping start cycle capable of filling a tank or a given set of tanks, and starting the aforementioned sensor connected to the working valve located at the place of hand grip .

- F: Automatic triggering order for stopping the transfer of fluid, emitted by the aforementioned sensor on detection of the actual upper level of the transferred fluid; - G: Successive and progressive presettings of the adjustment stop serving each rod and of the equipment unit, until optimization of the real transfer of the fluid, after several complete cycles of tests in real working conditions; - H: Approval of final settings, with activation of optional equipment capable of recording and controlling each phase of fluid transfer and / or each equipment used during said transfer; - I: Closure of the general safety valve, after deactivation of the central equipment and the aforementioned equipment in phase B.

The fluid transfer process is distinguished in that phase A implements a general safety valve capable of cutting off the entire fluid transfer, regardless of the number of rods; in that this valve is able to be located differently, as the following examples show: - the safety valve with automatic, semi-automatic or manual activation is located: in a first variant, downstream of the pump and in the control unit equipment; in a second variant, downstream and near the equipment center; in a third variant, downstream and close to the manual triggering working valve placed itself on the advantageously flexible or flexible piping connecting the central equipment to at least one rod; in a fourth variant, upstream and near the upper part of the single rod connected to the aforementioned piping; in a fifth variant, upstream and close to the distribution nozzle allowing connection to the collective piping and direct or indirect connection of several rods; in a sixth variant, on the above-mentioned upper part of a cane; in a seventh variant, on the aforementioned distribution nozzle of several rods.

The fluid transfer process is unique in that it implements a central of various equipment ensuring, for example, autonomy or energy transformation (electric, pneumatic, hydraulic accumulators, low frequency electric converters), pumping (in first variant a positive displacement pump performs the first measurement of the volume of fluid transferred per cycle, the automatic triggering of the filling stop signal caused by the detection of the upper level of said fluid materializing a second measurement of the actual volume of the fluid transferred; in second variant , a simple pump transfers any volume of fluid, the triggering of the aforementioned filling signal materializing a unique but very precise measurement of the actual volume of fluid transferred), the entry of measurements that can be controlled visually or not (meters, pressure switch, thermometers, PH meter, audible and / or warning lights), memorization ion and saving the instructions given and the results achieved at each phase (devices to be recorded by printer, by ink projection, by perforation, by generation of any signals such as electronic or video, usable live or delayed); in that the equipment unit is advantageously compact and light, to facilitate integration with other equipment or integration with a mobile chassis, said compactness requiring multiple bends in the internal pipes, the negative effects of which generate turbulence and / or water hammer detrimental to the accuracy of the measurements1 counting or pumping, are neutralized by the choice of tubing with compensated pressure losses having a non-bent profile length and a sufficient section close to their junction with each equipment, and mainly with positive displacement meters and pumps requiring load operation for high precision work; in that the central equipment has a protective fairing made of an advantageously light and resistant material both to impact and to corrosion and aggression by chemicals, fairing having shapes capable of promoting the flow and non-retention of accidental splashes and condensations of transferred fluids or chemical cleaning agents, but also capable of improving hygiene and, by optimizing corrosion resistance, improving the maintenance of aesthetics over time, reliability, longevity and profitability of equipment; in that a mobile variant of an equipment center has a light carriage fairing with rounded shapes devoid of marked reliefs, the lower part of which is provided with a frame mounted on wheels or on an air cushion making it possible to reach an elevation sufficient to drain by gravity without external energy the pipes and equipment loaded with the transfer fluids or the rinsing fluids, the upper part of which is provided with a serving platform with partially inclined pan, jet cleanable, with a handle guiding and an advanced awning housing the dials, buttons and lamps for controlling, adjusting, or signaling, against shocks and splashes of chemicals, and finally the central part includes the aforementioned equipment and optional equipment such as , for example, hose reels for connection to rods, electric cables and / or pneumatic pipes, magazine or support rod storage with or without individual valves - and distribution nozzle, safety tips with connections and ultra-fast closings.

The fluid transfer process is unique in that it implements one or more rod (s) provided (s) with a multifunction base; in that said base has one end either closed or open at a bevel, to prevent the penetration of foreign bodies during contact with the bottom of insufficiently clean tanks; in that said closed end of the cane is provided with a level sensor capable of issuing a tripping order to a cut-off valve of the cane supply circuit and / or to the pump of the equipment central, and / or to other optional equipment or not to the equipment central, as soon as it comes into contact with the upper level of the transferred fluid; in that said controlled level sensor also called control sensor can also be located in other locations advantageously sheltered from shocks such as, for example, inside the rod, in the position of withdrawal by compared to the end of an open cane, the opening can be advantageously provided with a slight bend or a small jet breaker to avoid the formation of parasitic foam; in that said control sensor, when it is located at the closed end of the rod, is advantageously landlocked as for its upper face and its side face (s), to protect it from any shocks which could initiate destruction or deterioration, but also to increase the fineness of the measurements by preventing all lateral parasitic measurements and by limiting the capture of contact with the transferred fluid at the level of the underside of the sensor only; in that said enclosure of the control sensor is advantageously made of an insulating material capable of adding to the described qualities of the rod explosion-proof characteristics obtained by eliminating the causes of sparks which are always ready to burst during a shock between a conductive material such as that of the sensor and a foreign body; in that the conductive circuit of said sensor is advantageously made of a material which is particularly resistant to corrosion and to chemical attack such as, for example, Uranus; in that the choices of the location, the enclosing mode and the connection mode of the sensor make it possible to optimize not only the mounting and replacement of a sensor, but also the tests of correct operation and of reproducibility of the times of response to signals generated by contact with the upper level of transferred fluids; in that the closed part of the rod overhanging the sensor is provided with an anti-foaming device capable of neutralizing a first part of the kinetic energy acquired by the fluid to be ejected and, consequently, one of the main causes of formation of parasitic foam, the anti-foaming device consisting of at least one, but advantageously several lumen (s) or lateral perforation (s) preventing direct outlet of the fluid and only allowing indirect outlet of the fluid; in that the above-mentioned anti-foaming device is reinforced by three jet-breaking and anti-foaming effects, the first effect being obtained by braking the fluid on the edge of the side lights, the second effect by damping the fluid over a small amount of fluid maintained in a slight cavity fitted thanks to the slight raising of the low level of the lights compared to the upper level of the material obstructing the end of the rod and enclosing the sensor, the third effect by the active role of jet reflector played by the neck or the walls of the tanks damping one last time the fluid ejected from the cane; in that the shape and the number of the aforementioned openings are highly variable, but that an oblong shape not perpendicular to the longitudinal axis of the cane favors the passage of the transferred fluid without depending on the diameter and the mechanical strength of the cane, unlike lights perpendicular to said axis, the increase in the number or the importance of which would rapidly weaken the mechanical characteristics or increase the phenomenon of foam formation by increasing the height of fall of the fluid by moving the rod upwards from the point d 'implantation of lights; in that the developed section of the lights advantageously makes it possible to exceed the section of the cane and to reduce the pressure drop specific to a cane open at its end; in that the conductive material of the aforementioned control sensor is able to be located on the external part of the rod, so as not to reduce the section of the rod and to trigger a signal only on contact with the fluid transferred into the reservoir.

The fluid transfer method is unique in that it uses a device for adjusting the penetration of each rod fitted with its sensor, the adjustment device consisting of a movable stop sliding on the fixed rod or of a fixed stop allowing the movable rod to slide; in that the stopper is provided with any means of blocking the movement relative to the rod, said blocking means securing the stopper and the rod in such a way that the direct or indirect bearing of the stopper on the neck of each reservoir å fill, places the sensor detection level at the desired tank filling height; in that the lockable adjustment device is capable of having different shapes, of which the following examples are given: in the first variant of a directly supported stop, the stop has a lockable adjustment device, a splash guard consisting of a dimension greater than that of the neck of the tanks to be filled, a decompression device consisting of at least one slot passing through the stop in the space remaining free between the rod and the neck of the tanks to evacuate the air expelled by the rise of the transferred fluid, a passage device for the sensor or sensor conductor consisting of at least one slot passing through the stop in the space remaining free between the rod and the neck of the tanks; in a second variant of a directly supported stop, the stop integrates the two devices for decompression and passage of the conductor of the sensor or of the sensor, thanks to the use of at least one same slot, slightly oversized for this purpose; as a third variant of a directly supported stop, the stop incorporates a reinforced anti-splash device, thanks to the addition on the underside of the stop of a compressible corrosion-resistant material capable of better fitting the most diverse forms of tank necks and thus avoid splashing without affecting decompression; as a fourth variant of a directly supported stop, the stop integrates in the first place a reinforced anti-splash device, whose self-adaptability to different diameters and shapes of tank necks is advantageously improved by a reduction in partially conical section optimizing by self-centering positioning of the rod, secondly incorporates a pressure relief device constituted by grooves or grooves arranged on the lower and lateral faces of said stopper, finally simultaneously integrates a first explosion-proof protection device against any shocks liable to generate sparks, a second anti-flow device for surplus fluid and a third concealment device preventing any penetration of foreign bodies into the rod, thanks to a limit switch mechanism allowing the lower part of the stop to descend and be maintained during storage and recor transport completely total of each outlet of the cane and at least partially overlapping the end of the cane closed by a sensor; in a fifth variant of stop & indirect support1 said stop is subdivided into at least two blocks, the upper block of which incorporates the lockable adjustment device, and the lower block of which incorporates all of the aforementioned devices, the subdivision making it possible to benefit from the protective devices during the phases handling and working of the cane in addition to the aforementioned phases of transport and storage, and making it possible to use the lower face of the upper block and the upper face of the lower block to arrange there a waterproof damping device protecting the two blocks against risk of violent impact.

The fluid transfer process is unique in that it implements as an extension of the upper part of the rod, a bend making it possible to maintain the fluid retention capacity at a constant value in the event of filling stop, the height of the fluid column maintained in the rod remaining constant whatever the length and the positioning of the connecting piping to the central equipment and the retention primer being always activated by the weight of the fluid column subjected to a descent by gravity as soon as the pump discharge pressure stops; in that this elbow is integrated into the rod, the connecting piping, or the distribution nozzle serving several rods; in that this elbow carries various devices such as, for example, sensor head, valve, connection tip and ultrafast closings, light signal, transparent part allowing to see the flow of the fluid, pressure switch.

The fluid transfer process is distinguished in that the simultaneous operation of a single positive displacement pump and of several rods provided respectively with their control sensor controlled by the detection of the transferred fluid makes it possible to obtain the work of several dosers or a divider, with savings in space, weight, cost, and a consequent simplification of maintenance; in that the divider operation particularly uses the principle of interactive dosing or the fluid transferred and the walls of the tank participate in the work of division, by providing the cause of the triggering of the signal to stop filling of each tank and by breaking the jet outlet of the fluid from the rod to reduce the formation of foam and turbulence detrimental to the detection accuracy of the control sensor; in that the operation of a single positive displacement pump serving one or more rods makes it possible to obtain the work of a divider as soon as the filling stop signal makes it possible to redirect the continuation of filling by pumping onto new tanks, volume of fluid in a pumping cycle then being equal to or slightly greater than the cumulative volumes of fluid to be transferred to each of the tanks in the group; in that the dividing devices advantageously implement additional phases and / or equipment such as, for example, setting in motion of each rod or of each cyclic closure tank with rotary valve, device for re-initiating a complete filling cycle or pumping: in a first variant, the dividing device implements a single rod capable of moving with respect to each of the reservoirs, with a device making it possible to prevent any flow during said displacement and an automatic re-priming device
a filling cycle upon completion of translation; as a second variant, the
division implements a single fixed rod with a device capable of moving the tanks, a device
making it possible to avoid any flow during movement, and a device for re-priming the filling cycle; in third variant1 the dividing device implements several rods joined to a
distribution nozzle fitted with a rotary barrel valve, and a device for re-priming only pumping,
the distribution nozzle can have a single pipe
inlet serviced by a single safety valve and a
single working valve.

The accompanying drawings illustrate equipment
implementing the method according to the invention:
Figure 1 shows the side view of a cane
angled with adjustment and blocking stop,
electric level, safety valve, working valve,
and connection piece for flexible piping.

Figure 2 shows the top view of the cane
cut above the stop.

Figure 3 shows the front view of the valve
job.

Figure 4 shows the front view of the cane
illustrated in Figure 1.

 Figure 5 shows the side view of a cane. The conductors (12) pass through the stop (7) provided with a large rim (10) thanks to slots (11) slightly oversized to let the compressed air pass through the penetration of the fluid into a tank perfectly closed by the rim ( 10) of the stop (7).

In a second variant, the interactive base of the sensor (3) is mounted at the lower end (14) of the rod (5); the head (4) of said sensor transmits to the working valve (2) the signal generated by the detection of the upper level of the fluid coming into contact with the single lower face (15) of the interactive base of the sensor enclosed on the other faces in an insulating material (16); the lower part (14) of the rod carries oblong lights (17) parallel to the longitudinal axis of the rod, lights whose bottom point is situated slightly above the upper face (18) of the material enclosing the base of the sensor , so as to constitute a small damping cavity for the kinetic energy of the fluid during its transfer, and a drip stop after stopping the transfer; the lights have ledges (19) serving as a jet breaker for the lateral outlet of the fluid, a jet breaker reinforced by the interactive effect of the walls of the reservoir absorbing part of the kinetic energy acquired by the fluid; the stop (7) provided with its blocking means (8) on the part (6) of the rod is used to stop a movable shutter (20 whose upper part (21) opposite with the lower face (22) of the stopper carries any means serving as a seal and shock absorber at the end of the stroke; the movable shutter has decompression grooves (23) used to expel the air trapped in the reservoir by the rise of the fluid , the pressure can be much too strong due to the anti-splash device constituted by the self-centering action and better penetration of the movable shutter in the neck of the tanks, thanks to its reduction in section with partially conical wall (24); the mobile shutter, when the rod is rising, serves as a shutter for the lights, thus stopping any flow of fluid, and serves as a second explosion-proof protector for the already protected part of the sensor.

The central equipment (25) includes at least one pump (26) advantageously volumetric to double the metering accuracy, a totalizer counter (27) taking stock of the pumping cycles triggered, connecting pipes including bent sections (28 ) essential to the compactness of the power plant, their negative effects are compensated for by straight non-bent sections (29) near their connection to the equipment. The grouping of equipment is protected by a fairing, the lower part of which is a chassis (30) of light trolley mounted on wheels (31), the upper part of which has a horizontal section (32) serving as a serving table, an inclined section (33) facilitating the flow of washing jets, condensations, and accidental projections, a canopy (34) housing the control panel (35) and acting as a guide handle.

 The fluid transfer process concerns manufacturers, conditioners, traders, users, laboratories or factories handling fluids1 and in particular aggressive, dangerous chemicals, as well as all food and pharmaceutical fluids.

Claims (7)

1) Method of transferring explosion-proof and defoaming fluid to a submerged interactive dosing rod, characterized in that it implements the following phases through a central stationary or mobile equipment (25) connected to one or more rods (s) (5) by one or more pipes: - A: Opening of a general safety valve (1) capable of cutting the general fluid transfer circuit; - B: Connection of the equipment center and of the work valve (2) with manual and / or pilot operated release, and of the sensor (s) (3) connected to said valve> sensor (s) and valve being placed on the or the rod (s) and on the pipe (s); - C: Presentation of the end of one or more rod (s) in front of the neck of the reservoir (s) to be filled, and first presetting of the insertion depth of a command sensor (3) equipping each aforementioned cane, by presetting a special stop (7); - D: First preset of the equipment center on the sole volumetric or weight criterion of the liquid to be transferred; - E. Order for manual or non-manual initiation of a pumping start cycle capable of filling a tank or a given set of tanks, and of starting the aforementioned sensor connected to the working valve located at the place of hand grip . - F: Automatic triggering order for stopping the transfer of fluid, emitted by the aforementioned sensor on detection of the actual upper level of the transferred fluid; - G: Successive and progressive presettings of the adjustment stop serving each rod and of the equipment unit, until optimization of the real transfer of the fluid, after several complete cycles of tests in real working conditions; - H: Approval of the final settings, with activation of optional equipment capable of recording and controlling each phase of fluid transfer, and / or each equipment used during said transfer; - I: Closure of the general safety valve / after deactivation of the central equipment and the aforementioned equipment in phase B.  2) Fluid transfer method according to the Claim 1, characterized in that phase A implements a general safety valve capable of cutting off the entire fluid transfer, regardless of the number of rods; in that this valve is able to be located differently as shown in the following examples: - the safety valve with automatic, semi-automatic or manual activation is located: in a first variant, downstream of the pump (26) and in the central unit equipment; in a second variant, downstream and near the equipment center; in a third variant, downstream and close to the manual triggering working valve placed itself on the advantageously flexible or flexible piping connecting the central equipment to at least one rod; in a fourth variant, upstream and near the upper part of the single rod connected to the aforementioned piping; in a fifth variant, upstream and close to the end piece  distribution allowing the connection of collective piping and the direct or indirect connection of several rods; in a sixth variant, on the above-mentioned upper part of a cane; in a seventh variant, on the aforementioned distribution nozzle of several rods.  3) Fluid transfer method according to the Claim 1 and according to Claim 2, characterized in that it implements a central of various equipment ensuring, for example, autonomy or energy transformation (electric, pneumatic, hydraulic accumulators, low frequency electric converters), the pumping (in a first variant, a positive displacement pump (26) performs the first measurement of the volume of fluid transferred per cycle, the automatic triggering of the filling stop signal caused by the detection of the upper level of said fluid materializing a second measurement of the actual volume of the transferred fluid; in the second variant, a simple pump transfers any volume of fluid, the triggering of the aforementioned filling signal materializing a unique but very precise measurement of the actual volume of fluid transferred), the entry of measurements that can be controlled visually or not (counters (27), pressure switch, thermometers, PH meter, horns and / or luminescent ux), memorizing and saving the instructions given and the results achieved at each phase (devices to be recorded by printer, by ink projection> by perforation, by generation of any signals such as electronic or video, usable directly or by deferred); in that the central equipment is advantageously compact and light1 to facilitate integration with other equipment or integration with a movable chassis (30)> said compactness imposing multiple bends (28) on the internal pipes whose effects negative turbulence generators and / or water hammer detrimental to the accuracy of the measurements, counting or pumping, are neutralized by the choice of compensated pressure drop tubing having a non-bent profile length (29) and a sufficient section close to their junction with each piece of equipment, and mainly with the meters (27) and positive displacement pumps (26) requiring to operate under load for high precision work; in that the central equipment has a protective fairing made of an advantageously light and resistant material both to impact and to corrosion and aggression by chemicals, fairing having shapes capable of promoting the flow and non-retention of accidental splashes and condensations of transferred fluids or chemical cleaning agents, but also capable of improving hygiene and, by optimizing corrosion resistance, improving the maintenance of aesthetics over time, reliability, equipment longevity and profitability; in that a mobile variant of equipment center has a light carriage fairing with rounded shapes devoid of marked reliefs, the lower part of which is provided with a chassis (30) mounted on wheels (31) or on an air cushion making it possible to achieve a sufficient elevation to drain by gravity without external energy the pipes and equipment loaded with the fluids to be transferred or the rinsing fluids, the upper part of which is provided with a serving pan (32) with partial pan inclined (33) jet cleanable, a guide handle and an advanced canopy (34) housing the dials, buttons and lamps for control, adjustment, or signaling (35), against impacts and projections of products chemicals, and of which finally the central part includes the aforementioned equipment and optional equipment such as, for example, hose reels for connection to rods, electric cables and / or pipes tires, magazine or rod storage support with or without individual valves and distribution nozzle, safety tips with connections and ultra-fast closings.  4) Fluid transfer method according to the Claim 1 and according to any one of Claims 2 to 3, 3, characterized in that it implements one or more rod (s) provided (s) with a multifunction base (14); in that said base has one end either closed or open at a bevel, to prevent the penetration of foreign bodies during contact with the bottom of insufficiently clean tanks; in that said closed end of the cane is provided with a level sensor (3) capable of issuing a tripping order to a cut-off valve of the cane supply circuit and / or to the pump (26) of the central equipment (25), and / or other optional equipment or not the central equipment, upon contact with the upper level of the transferred fluid; in that said level sensor (3) with controlled servo also called control sensor, can also be located in other locations advantageously sheltered from shocks such as, for example, inside the rod, in withdrawal position relative to the end of an open rod, the bias opening can advantageously be provided with a slight bend or a small jet breaker to avoid the formation of parasitic foam; in that said control sensor, when it is located at the closed end of the rod, is advantageously landlocked as for its upper face and its side face (s), to protect it from any shocks which could initiate destruction or deterioration, but also to increase the finesse of the measurements by preventing all lateral parasitic measurements and by limiting contact capture with the fluid transferred at the level of the underside of the sensor only; in that said enclosing of the control sensor is advantageously made of an insulating material (16) capable of adding to the described qualities of the rod explosion-proof characteristics obtained by eliminating the causes of sparks which are always ready to burst during a shock between a conductive material such as that of the sensor and a foreign body; in that the conductive circuit (12, 15) of said sensor is advantageously made of a material which is particularly resistant to corrosion and to chemical attack such as, for example, Uranus; in that the choices of the location, the enclosing mode and the connection mode of the sensor make it possible to optimize not only the mounting and replacement of a sensor, but also the tests of correct operation and of reproducibility of the times of response to signals generated by contact with the upper level of transferred fluids; in that the closed part of the rod overhanging the sensor is provided with an anti-foaming device capable of neutralizing a first part of the kinetic energy acquired by the fluid to be ejected and, consequently, one of the main causes of formation of parasitic foam, the anti-foaming device consisting of at least one, but advantageously several lumen (s) or lateral perforation (s) (17) prohibiting the direct exit of the fluid and only authorizing the indirect exit of the fluid; in that the above-mentioned anti-foaming device is reinforced by three jet-breaking and anti-foaming effects, the first effect being obtained by braking the fluid on the rim (19) of the side lights (17), the second effect by damping the fluid on a small quantity of fluid maintained in a slight cavity arranged thanks to the slight raising of the low level of the lights relative to the upper level (18) of the material obstructing the end of the rod and enclosing the sensor (3), the third effect by the active role of jet reflector played by the neck or the walls of the tanks damping one last time the fluid ejected from the cane; in that the shape and the number of the aforementioned openings are highly variable, but that an oblong shape not perpendicular to the longitudinal axis of the cane favors the passage of the transferred fluid without depending on the diameter and the mechanical strength of the cane, unlike lights perpendicular to said axis, the increase in the number or importance of which would rapidly weaken the mechanical characteristics or increase the phenomenon of foaming by increasing the height of fall of the fluid by upward movement of the rod from point d 'implantation of lights; in that the developed section of the lights advantageously makes it possible to exceed the section of the cane and to reduce the pressure drop specific to a cane open at its end; in that the conductive material (12) of the aforementioned control sensor is able to be located on the external part of the rod, so as not to reduce the section of the rod and to trigger a signal only on contact with the fluid transferred into The reservoir.  5) Fluid transfer method according to the Claim 1 and according to any one of Claims 2 to 4, characterized in that it implements a device for adjusting the penetration of each rod fitted with its sensor, the adjustment device consisting of a movable sliding stop on the fixed rod or a fixed stop allowing the mobile rod to slide; in that the stop (7) is provided with any blocking means (8) for the displacement relative to the rod, said blocking means securing the stop and the rod in such a way that the direct or indirect bearing of the stop on the neck of each tank to be filled, places the sensor detection level at the desired tank filling height; in that the lockable adjustment device is capable of having different shapes, of which the following examples are given: in the first variant of stop (7) with direct support1 the stop has a lockable adjustment device (8), a splash guard constituted by a dimensioning greater than that of the neck of the tanks to be filled, a pressure relief device consisting of at least one slot (11) passing through the stop in the space remaining free between the rod and the neck of the tanks to evacuate the expelled air by the rise of the transferred fluid, a device for passing the sensor or sensor conductor (12) consisting of at least one slot (11) passing through the stop in the space remaining free between the rod and the neck of the tanks; in a second variant of a directly supported stop, the stop integrates the two devices for decompression and passage of the conductor of the sensor or of the sensor, thanks to the use of at least one same slot (11) slightly oversized for this purpose; as a third variant of a directly supported stop, the stop incorporates a reinforced anti-splash device, thanks to the addition on the underside of the stop of a compressible material resistant to corrosion capable of better fitting the most diverse forms of tank necks and thus avoid splashing without affecting decompression; in the fourth variant of a directly supported stop, the stop integrates in the first place a reinforced anti-splash device, whose adaptability to different diameters and shapes of tank necks is advantageously improved by a reduction in partially conical section (24) optimizing by self-centering the positioning of the rod, secondly incorporates a pressure relief device constituted by grooves or grooves (23) arranged on the lower and lateral faces of said stopper, finally simultaneously integrates a first explosion-proof protection device against any shocks liable to generate sparks, a second anti-flow device for surplus fluid and a third concealment device preventing any penetration of foreign bodies into the rod, thanks to a limit switch mechanism allowing the lower part of the stop to descend and be maintained during storage and transpo rt in total covering of each outlet of the rod and in at least partial covering of the end of the rod closed by a sensor; in a fifth variant of an indirectly supported stop, said stop is subdivided into at least two blocks, the upper block (7) of which includes the lockable adjustment device (8), and the lower block (20) of which incorporates all of the aforementioned devices, the subdivision making it possible to benefit from the protective devices during the handling and working phases of the rod in addition to the aforementioned phases of transport and storage, and making it possible to use the lower face (22) of the upper block and the upper face (21) of the lower block for fitting a waterproof damping device protecting the two blocks against the risk of violent impact.  6) Fluid transfer method according to the Claim 1 and according to any one of Claims 2 to 5, characterized in that it implements in extension of the upper part of the cane1 an elbow (9) making it possible to maintain the fluid retention capacity at a constant value in the event of filling stop, the height of the fluid column kept in the rod remains constant whatever the length and the positioning of the piping for connection to the central equipment and the retention primer is always activated by the weight of the column of fluid subjected to a descent by gravity as soon as the pumping discharge pressure stops; in that this elbow is integrated into the rod, the connecting piping, or the distribution nozzle serving several rods; in that this elbow carries various devices such as, for example, sensor head, valve, connection tip and ultra-fast closings, light signal, transparent part allowing the flow of the fluid to be seen, pressure switch.  7) Fluid transfer method according to the Claim 1 and according to any one of Claims 2 to 6, characterized in that the simultaneous operation of a single positive displacement pump and of several rods provided respectively with their control sensor controlled by the detection of the transferred fluid makes it possible to obtain the work of several dosers or a divider, with savings in space, weight, cost, and a consequent simplification of maintenance; in that the divider operation particularly uses the principle of interactive dosing or the fluid transferred and the walls of the tank participate in the work of division, by providing the cause of the triggering of the signal to stop filling of each tank and by breaking the jet fluid outlet from the rod to reduce the formation of foam and turbulence detrimental to the detection accuracy of the control sensor; in that the operation of a single positive displacement pump serving one or more rods makes it possible to obtain the work of a divider as soon as the filling stop signal makes it possible to redirect the continuation of filling by pumping onto new tanks, the volume of fluid in a pumping cycle then being equal to or slightly greater than the cumulative volumes of the fluid to be transferred to each of the tanks in the group; in that the dividing devices advantageously implement additional phases and / or equipment such as, for example, setting in motion of each rod or of each reservoir, cyclic closure with rotary valve, device for re-initiating a filling cycle complete or pumping: in the first variant1 the dividing device implements a single rod capable of moving with respect to each of the reservoirs, with a device making it possible to avoid any flow during said displacement and an automatic re-priming device a filling cycle upon completion of translation; in a second variant, the dividing device implements a single fixed rod with a device capable of moving the tanks, a device making it possible to avoid any flow during movement, and a device for re-priming the filling cycle; in a third variant, the dividing device implements several rods joined to a distribution nozzle provided with a rotary barrel valve, and a device for re-priming the single pumping, the distribution nozzle being able to have a single inlet pipe served by a single safety valve and a single working valve.