FR2493176A1 - DEVICE FOR MIXING A FIRST FLUID WITH A SECOND VECTOR FLUID - Google Patents

Abstract

DEVICE FOR MIXING A FIRST FLUID WITH A SECOND VECTOR FLUID, INCLUDING A SET FOR TAKING THE FIRST FLUID OUT OF A CONTAINER IN WHICH IT IS STORED, A SET FOR DILUTION OF THE FLUID SUPPLIED IN THE VECTOR FLUID AND A SET OF DISTRIBUTION FLUID OBTAINED WITH A VIEW TO ITS SUBSEQUENT USE, CHARACTERIZED IN THAT THE WITHDRAWAL, DILUTION AND DISTRIBUTION ARE PROVIDED BY A SINGLE CONTROL DEVICE ACTUATED UNDER THE EFFECT OF A DIFFERENTIAL PRESSURE ESTABLISHED IN THE VECTOR FLUID CIRCULATION NETWORK.

Description

DEVICE FOR MIXING A FIRST

SECOND FLUID TO IJN VECTOR FLUID

  Mr. FOEGLE René. 2 4 93176 The present invention relates to a device

  for mixing a first fluid with a second carrier fluid, comprising

  carrying an assembly for withdrawing the first fluid from a container

  content in which it is stored, a set of dilution of the fluid

  withdrawn from the carrier fluid and a distribution assembly

  of the fluid mixture obtained with a view to its subsequent use.

  We already know devices of this type, used

  for example in the food industry or in general

  any installation in which it is necessary at a given time

  born from mixing two fluids in given quantities.

  In what follows, it is understood that, within the meaning of the invention, it will be considered as being able to be designated by "fluid" any liquid, gaseous, pasty or even solid product.

  the powder state, that is to say capable of flowing.

  The known devices are expensive, complex, im-

  perfect or require for the withdrawal of the first stored fluid

  in an additional container such as for example a gas under pressure

  if we. This is impractical and also poses a risk to the user.

  in particular for possible applications in

public places.

  The invention proposes to overcome these various inconveniences.

  come by a simple device, not requiring for com-

  control of the external supply assembly other than the simple circu-

lation of the carrier fluid.

  In accordance with the invention, this result is obtained with a device for mixing a first fluid with a second carrier fluid, comprising an assembly for withdrawing the first fluid from a container in which it is stored, an assembly

  dilution of the fluid withdrawn in the carrier fluid and a set of

  ble of distribution of the fluid mixture obtained with a view to its use

  subsequent sation, characterized in that the withdrawal, the dilution

  and distribution are provided by a single control device

  that operated under the effect of an established differential pressure

  in the vector fluid circulation network.

  In all that follows, reference will be made to a fluid

  vector made up of water, the circulation network of

  carrier fluid in this case being the water distribution network.

  In accordance with a preferred embodiment of the invention, the aforementioned control device will essentially consist

  by a piston able to move in a first cylinder chamber

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2 2493176

  drique, said piston being provided with a rod moving in a second cylindrical chamber which can be placed in communication on the one hand with the container for storing the first fluid and on the other hand with the dilution and distribution assembly, two faces of the aforementioned piston being constantly subjected to the pressure

of the carrier fluid.

  The invention will be better understood using the

  description below of a preferred mode of implementation in referencing

  this in the appended drawings in which: - Figure 1 is a view in longitudinal section of the device according to the invention (scale 1/2); Figure 2 is a longitudinal sectional view

  greatly enlarged dilution device.

  The device according to the invention is externally in the form of a casing (1) of generally cylindrical shape. This casing comprises an inlet orifice (2) for the first fluid, three orifices (3, 4, 5) in communication with the vector fluid circulation network, an orifice (6) provided with a closing bolt, not shown , the plug possibly being able to serve as a flow adjustment, the orifice (6) serving to bring the carrier fluid to the second fluid, and finally an orifice (7)

expulsion of the mixture obtained.

  The housing (1) is internally provided with two chambers

  cylindrical berries communicating with each other respectively

  large diameter chamber (8) and a small diameter chamber (9).

  In the large-diameter chamber (8) is arranged a piston (10) capable of moving longitudinally in said chamber, so as to determine two zones (11, 12) separated from

  sealingly by a peripheral annular seal (13) of the

your. -

  One of the zones (12) is in direct communication with the orifice (3), the other zone (11) being in communication with the orifice (4); the orifices (3) and (4) are in turn connected

  directly or indirectly to the carrier fluid network.

  On the face disposed towards the zone (11), the piston (10) comprises a rod (14) capable of sliding in leaktight manner, by virtue of an annular seal (15), in the cylindrical chamber of small diameter (9). In this cylindrical chamber (9) opens the inlet orifice (2) of the first fluid. In this orifice is

  fitted with a non-return valve on the valve allowing only suction

  tion of the fluid out of its container.

  In the cylindrical chamber (9) also opens

  a bore (16) the other end of which is in direct communication

  te with the aforementioned orifice (5). In the bore (16) are arranged two non-return valves (17) and (22), the latter being shown schematically

by one of its balls.

  The bowl (18) of the valve (17) is integral with a cylindrical piston (19) whose other end (20) supports a cylindrical rod (21) which controls one of the balls of the second valve

  non-return (22). This valve is also double, for a function-

  tion which will be explained later.

  In addition the orifices (6) and (7) terminate directly

in the bore (16).

  Finally, various adjustment systems have been provided such as - limitation of the piston stroke (10.) with a screw (231 - adjustment - of the orifice flow (7) by a screw (24), - adjustment of the flow orifice (6) by a screw

  (25), or by the plug of the orifice as indicated above.

  In the embodiment of FIG. 1, we have represented

  Tee also a bore (26) connecting the orifices (6) and (7) and ensuring therefore 1; 'amégedu vector fluid for mixing

  later in the orifice (7) with the second fluid.

  The operation is as follows When establishing a maximum pressure

  in the carrier fluid circuit, for example when closing

  of the water distribution circuit, the piston (10) is in position

  sition "left" compared to figure 1.

  If we come from this position to create a vacuum in the vector fluid circuit, which is connected to

  orifices (3) and (4) remember, there comes a time when the pis-

  tone, under the action of this depression, moves to the right with respect to Figure 1 and finally comes to adopt the position

  terminal shown in Figure 1.

  - In doing so, a vacuum is created in the small chamber (9) which causes the ball of the non-return valve placed in the orifice (2) to rise, and therefore a suction of the

fluid stored in its contents.

  If now from the position of the figure]

  the initial pressure in the fluid circuit is restored

  b of vector, it follows a reverse movement of the piston towards the

  left. The effect of this movement is to expel the fluid

  held in the chamber (9) through the valve (17) also raising the piston (19) under the sole effect of the pressure. The fluid in the chamber (9) then flows through the orifice (7). By the upward movement of the piston (19), the rod (21) of the latter moves the ball of the non-return valve disposed in the bore (16), thus allowing the passage of carrier fluid towards the orifice (6 ). When the pressure falls in the chamber (9), the piston (19) descends under the effects of gravity on the one hand and the pressure exerted by the carrier fluid on the bottom ball on the other hand and the valve interrupts l carrier fluid. The double non-return valve (22) works as

shown below.

  The upper ball of the valve ensures - safety

  non-return of the mixture Qu of one of the fluids in case the

would reverse.

  The lower ball prevents the carrier fluid from

  flow until the rod (21) does not lift it.

  Multiple improvements can be made

  tés au décri.t device without departing from the scope of the invention.

  So we can conceive of opening up into

  the same orifices (3), (4) and (5) one or more vector fluids

  different teurs, or multiply the orifices, the different

  vector fluids that can be submitted independently of any of the

  be at internal pressure variations allowing control

of the main piston.

  One can also consider withdrawing several fluids by multiplying the orifices (2), by placing them either longitudinally or on the periphery of the casing (1). Of the same

  way there can exist a plurality of orifices type (6) and- (7).

  Finally the piston (10) can be actuated by all

  the forms of energy that can generate directly or indirectly-

  a variation in pressure. The device according to the invention

  tion can therefore be activated at specific times if it is possible

  ble to control and predict pressure variations. In this case the device may have to mix at least two fluids

  (at least one of which is a vector) at specific programmable times.

  If you do not control the pressure variations of the

  carrier fluid, the device will ensure mixing and

  increase of the mixture obtained at given times but not programmed

wheat. -

  Finally, it is clear that the functions of the orifices (6) and (7) can be reversed. -

2 4 931 7 6

Claims (8)

CLAIMS -   1. Device for mixing a first fluid with a   second vector fluid, comprising a set of withdrawal of the first   mier fluid out of a container in which it is stored, a   seems to dilute the fluid withdrawn in the carrier fluid and a distribution assembly of the fluid mixture obtained for its   subsequent use, characterized in that the withdrawal, the   production and distribution are ensured by a communication device   single control actuated by differential pressure   established in the vector fluid circulation network.   2. Device according to claim 1, characterized in that the control device is essentially constituted by a piston (10) able to move in a first cylindrical chamber of large diameter (8), said piston (10) being provided with a rod (14) moving in a second cylindrical chamber of small diameter (9) which can be brought into communication on the one hand by an orifice (2) with the storage container of the first   fluid and secondly with the dilution and distri-   bution, the rod (14) moving in the chamber (9) in a sealed manner, the piston (10) dividing the chamber (8) into two zones (11), (12) each of which is connected by a orifice (4),   (3), at the carrier fluid distribution network, the piston   further carrying a peripheral annular seal (13).   3. Device according to any one of the claims.   1 and 2, characterized in that the expulsion of the first fluid from the chamber (9) and admission into the dilution assembly   of the carrier fluid operate through a bore (16) of the car-   ter (1) in communication with two orifices (6) and (7), the expulsion   the first fluid operating through a check valve   return (17) and the admission of the vector fluid operating through a second non-return valve (22) the control of said second non-return valve being operated by the rod (21) of a piston (19)   moving during the expulsion of the first fluid in the bore -   (16). 4. Device according to claim 3, characterized in that the orifices (6, 7) are interconnected by a bore (26).   5. Device according to any one of the claims.   tions 3 and 4, characterized in that the orifices (6) and (7) are 2493 1 7 6   fitted with flow adjustment screws (24, 25).   6. Device according to any one of the claims.   tions 2 to 5, characterized in that the piston (10) has a li- race monitor (23).   7. Device according to any one of the claims.   tions 2 to 6, characterized in that it comprises a plurality of ori- fices (2, 3, 4, 5).   8. Device according to any one of the claims.   tions 3 to 7, characterized in that it comprises a plurality of ori- fices (6, 7). JI