• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Apparatus (70) for dispensing the mixture of a liquid (759) and a first fluid (79), comprising: - a tank (75) including the liquid (759), - a tank (71) for storing in its interior space (711) the first fluid (79), the installation being characterized in that said tank (71) is embedded in the tank (75) and in that it further comprises: - a cover (73) ) comprising an inlet (736) arranged to introduce compressed air into the tank (71) in order to pressurize the interior space (711) of the tank (71), - a conveying means arranged in such a way that it makes it possible to convey the first fluid (79) from the tank (71) to the tank (75) when the interior space (711) of the tank (71) is pressurized after the introduction of compressed air by the inlet (736), so that the liquid (759) is mixed under pressure with the first fluid (79), and - a means for spreading the mixture of the liquid (759) and the first fluid (79) when the pressure in the vessel (75) exceeds a predetermined pressure threshold.
    公开号:FR3061662A1
    申请号:FR1850199
    申请日:2018-01-10
    公开日:2018-07-13
    发明作者:Eric Issartel
    申请人:Suez Groupe SAS；
    IPC主号:
    专利说明:

    ® Agent (s): CABINET ARMENGAUD AINE.
    ® INSTALLATION AND METHOD FOR SPREADING THE MIXTURE OF A LIQUID AND A FIRST FLUID.
    FR 3,061,662 - A1 (yf) Installation (70) intended to spread the mixture of a liquid (759) and a first fluid (79), comprising:
    - a tank (75) comprising the liquid (759),
    - A tank (71) intended to store in its internal space (711) the first fluid (79), the installation being characterized in that said tank (71) is embedded in the tank (75) and in that it further includes:
    - a cover (73) comprising an inlet (736) arranged to introduce compressed air into the reservoir (71) in order to pressurize the interior space (711) of the reservoir (71),
    - A conveying means arranged so that it allows the first fluid (79) to be conveyed from the reservoir (71) to the tank (75) when the interior space (711) of the reservoir (71) is pressurized after the introduction of compressed air through the inlet (736), so that the liquid (759) is mixed under pressure with the first fluid (79), and
    - A means for spreading the mixture of the liquid (759) and the first fluid (79) when the pressure in the tank (75) exceeds a predetermined pressure threshold.

    i
    INSTALLATION AND METHOD FOR SPREADING THE MIXTURE OF A
    LIQUID AND A FIRST FLUID
    Technical area
    The present invention relates to an installation and a method for mixing a liquid and a first fluid, and more precisely to an installation and a method intended for spreading the mixture of a liquid and a first fluid.
    State of the art
    Installations for spreading the mixture of a liquid and a first fluid are used in many technological fields, such as for example in the field of foam fire protection, in the field of treatment with disinfectant solutions or even in the field agricultural treatments. The liquid and the first fluid used vary according to the technological field of application of these installations.
    An example of an installation intended to spread the mixture of a liquid and a first fluid belonging to the field of fire protection by foam is disclosed in patent application FR.2882523A1.
    This patent application discloses a portable water extinguisher provided with a dose of additive. During the use of this extinguisher, there is mixing of a liquid (water) with a first fluid (additive). This mixture results in the generation of an extinguishing foam which is spread by a lance of the extinguisher during its use.
    In more detail, as described in patent application FR.2882523A1, the water extinguisher comprises a tubular body comprising a neck closed by a plug, to which the neck of a bottle containing pressurized carbon dioxide is screwed. A handle controls a needle intended to perforate a lid on the neck, so as to put the inside of the bottle in communication with a pipe. The plug is also integral with a dip tube, the outlet of which is at the bottom of the tubular body, while this tube communicates with a lance, by means of a flexible pipe. The hose is in communication with a connecting member, which is itself fixed to a member for receiving a dose of additive, intended to be mixed with the water contained in the body of the extinguisher.
    In service, when the extinguisher is put into action in a known manner by maneuvering the handle, the carbon dioxide present in the bottle flows, via a nozzle of the connecting member, into a through channel formed by holes thus only by a counter-bore of the connecting member. This gas then pierces a cover of the receiving member initially closing a plug of the receiving member so as to penetrate into the interior volume of this receiving member. This carbon dioxide finally tears the bottom of the receiving member, so that the additive initially present in the receiving member is sent under pressure into the water contained by the body of the extinguisher. After use, the receiving device, which includes the dose of additive, must be changed, separating it from the connecting device.
    The installation of patent application FR.2882523A1 corresponds to a conventional portable type water extinguisher which has a limited and insufficient volume in the case of large fires. In addition, in this installation the receiving member also has a limited volume. Consequently, it is necessary to change it several times by detaching it from the connecting member. Furthermore, the mixture between the liquid and the first fluid is not homogeneous.
    Another example of an installation intended to spread the mixture of a liquid and a first fluid belonging to the field of fire protection by foam is disclosed in the patent application GB2246294A.
    This patent application discloses an autonomous fire extinguisher system (autonomous skid) which can be mounted on a trolley or on a skate. This system includes a source of high pressure gas which is used to power a motor for driving a fan to circulate a stream of air through a foam generator when the system is in use. In addition, this system includes a pressure vessel containing water and a reservoir containing a high expansion foam concentrate. When this system is in use, the gas is also used to force the water through a venturi where it drives the high expansion foam concentrate to form a foam concentrate solution which is delivered to the foam generator via a nozzle.
    Thus, in the installation disclosed in patent application GB2246294A, the mixing between the liquid (water) and the first fluid (concentrated foam with high expansion) is carried out by the use of the venturi. This mixture results in the generation of a foam which is spread by the foam generator during the use of this installation.
    This installation belongs to the field of skids having large dimensions which is different from the field of conventional portable type fire extinguishers having limited dimensions. It is used intensively by professionals in the event of major fires.
    However, this installation has significant pressure losses due to the use of the complex venturi system as well as sealing problems between the pressure vessel, the reservoir and the various intermediate circuits. Furthermore, patent application GB2246294A does not disclose a homogeneous mixture between the liquid and the first fluid.
    Consequently, it remains advantageous to provide an installation intended to spread the mixture of a liquid and a first fluid which is compact, simple, easily available, with little pressure drop and leaktight, and which has a homogeneous mixture between the liquid and the first fluid.
    Statement of the invention
    For this, the invention provides an installation intended to spread the mixture of a liquid and a first fluid, comprising:
    - a tank comprising or containing the liquid,
    a reservoir intended to store the first fluid in its internal space, the installation being characterized in that said reservoir is embedded in the tank and in that it further comprises:
    a cover arranged to close the tank, the cover comprising an inlet arranged to introduce compressed air into the tank in order to pressurize the interior space of the tank,
    a conveying means arranged so that it allows the first fluid to be conveyed from the reservoir to the tank when the interior space of the reservoir is pressurized after the introduction of compressed air through the inlet , so that the liquid is mixed under pressure with the first fluid, and
    - A means for spreading the mixture of the liquid and the first fluid when the pressure in the tank exceeds a predetermined pressure threshold.
    Having the tank embedded in the tank results in an installation that is compact, simple and waterproof. Furthermore, having a means for spreading the mixture of the liquid and the first fluid when the pressure in the tank exceeds a predetermined pressure threshold results in a homogeneous mixture between the liquid and the first fluid. Furthermore, the installation of the invention described above does not need to use a venturi system for mixing the liquid and the first fluid since this mixing is carried out by conveying the first fluid from the reservoir to 'to the tank. Thus, the installation of the invention has little pressure drop. Furthermore, the fact of having a cover comprising an inlet arranged to introduce compressed air into the tank in order to pressurize the interior space of the tank, results in an installation which is readily available.
    According to optional characteristics or particular embodiments of the installation intended to spread the mixture of a liquid and a first fluid according to the invention, used alone or in combination with one another:
    - The installation further comprises at least one recirculation duct located on at least one side wall of the tank and configured to recirculate the mixture of the liquid and the first fluid within the tank;
    - The at least one recirculation duct comprises a recirculation control means in the at least one recirculation duct configured to stop the recirculation of the mixture of the liquid and the first fluid when the pressure in the tank exceeds the predetermined pressure threshold;
    - The recirculation control means in the at least one recirculation duct is a valve or a diaphragm;
    - The predetermined pressure threshold is between 0.5MPa and lMPa, and preferably is equal to 0.7MPa;
    - the installation also includes:
    - at least one additional reservoir intended to store in its internal space a first additional fluid, the additional reservoir being embedded in the tank,
    - At least one additional cover arranged to close the at least one additional tank, the at least one additional cover comprising at least one additional inlet arranged to introduce compressed air into the at least one additional tank in order to pressure the interior space of the at least one additional tank, and
    - At least one additional conveying means arranged so that it makes it possible to convey the first additional fluid from the at least one additional reservoir to the tank when the interior space of the at least one additional reservoir is pressurized after the introduction of compressed air by the at least one additional inlet, so that the liquid is mixed under pressure with the first additional fluid;
    - The means for spreading the mixture of the liquid and the first fluid is a valve or a diaphragm;
    - The routing means is a swan neck conduit;
    - The conveying means is a valve or a diaphragm.
    Furthermore, the invention relates to a method intended for spreading the mixture of a liquid and a first fluid using an installation as described above, said method being characterized in that it comprises:
    a first step of introduction into the reservoir and possibly into the at least one additional reservoir of compressed air in order to pressurize the interior space of the reservoir and possibly of the at least one additional reservoir and thus conveying the first fluid from the reservoir and optionally from the at least one additional reservoir to the tank, so that the liquid included in the tank is mixed with the first fluid, and
    - A second step to spread the mixture of the liquid and the first fluid when the pressure in the tank exceeds a predetermined pressure threshold.
    According to optional characteristics or particular embodiments of the process intended for spreading the mixture of a liquid and a first fluid according to the invention, implemented alone or in combination with them:
    - The mixture of the liquid and the first fluid is recirculated within the tank;
    - The recirculation of the mixture of the liquid and the first fluid within the tank is stopped when the pressure in the tank exceeds the predetermined pressure threshold;
    - The predetermined pressure threshold is between 0.5MPa and lMPa, and preferably is equal to 0.7MPa.
    Brief description of the figures
    The invention will be better understood on reading the description which follows, given solely by way of example, and with reference to the appended figures in which:
    - Figure 1 illustrates a longitudinal sectional view of an installation for spreading the mixture of a liquid and a first fluid according to an embodiment of the invention;
    - Figure 2 illustrates a longitudinal sectional view of an installation for spreading the mixture of a liquid and a first fluid according to another embodiment of the invention with a recirculation duct.
    Modes of realization
    These embodiments of the installation and method intended for spreading the mixture of a liquid and a first fluid being in no way limiting, it will in particular be possible to produce variants of the invention comprising only a selection of the characteristics described. thereafter, as described or generalized, isolated from the other characteristics described, if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention from the state of the art.
    The installation intended to spread the mixture of a liquid and a first fluid according to the invention can be used in numerous technological fields, such as for example in the field of foam fire protection, in the field of treatment with disinfectant solutions or the field of agricultural treatments.
    The embodiments presented below relate to an installation intended to spread the mixture of a liquid and a first fluid belonging to the field of fire protection by foam and in particular corresponding to a fire protection installation by foam, but they can perfectly be transposed to other areas such as treatment with disinfectant solutions or even the field of agricultural treatments.
    Figure 1 shows a foam fire protection system. Figure 1 shows a first embodiment of this installation.
    This installation 70 is of the type comprising a reservoir 71 intended to store a first fluid 79 in an interior space 711 of this reservoir 71.
    This installation comprises a tank 75 in which the tank 71 is embedded. The fact of having the tank 71 embedded in the tank 75 results in an installation 70 which is compact, simple and waterproof.
    The tank 75 typically has a capacity of 12,000 liters and contains or includes a liquid 759 such as water.
    The tank 71, called the foam concentrate tank, typically has a capacity of 300 liters and the first fluid 79 that it contains is a foaming product such as a multi-expansion film-forming synthetic foam concentrate (A3F or AFF). In another example, the first fluid 79 is a retarding product and in this case the reservoir 71 is called the retarding reservoir.
    This installation further comprises a cover 73 arranged to close the reservoir 71. The cover 73 comprises an inlet 736 arranged to introduce compressed air into the reservoir 71. In this way, the interior space 711 of the reservoir 71 is pressurized. Furthermore, a fixing flange 74 is arranged to fix the cover 73 to the tank 71. The flange 74 is typically embedded and then welded to the tank 71. In the example of the installation 70 of FIG. 1, twenty screws are used -nuts having an M30 thread to which a tightening torque of 308 Nm is applied. These screw-nuts are used to fix the cover 73 to the tank 71 and to the tank 75.
    The installation 70 of FIG. 1 further comprises a conveying means arranged so that it makes it possible to convey the first fluid 79 from the reservoir 71 to the tank 75 when the interior space 711 of the reservoir 71 is pressurized after the introduction of compressed air through the inlet 736, so that the liquid 759 is mixed under pressure with the first fluid 79.
    In particular, in the installation of FIG. 1, the conveying means is a swan neck conduit 76 and the first fluid 79 is a foaming product.
    This swan neck conduit 76 allows the foaming product to be conveyed from the reservoir 71 to the tank 75 when the interior space 711 of the reservoir 71 is pressurized after introduction of compressed air through the inlet 736. A pressurization system not illustrated in the figures is arranged to introduce compressed air through the inlet 736. According to one example, this pressurization system is a compressed air tank which is connected with the inlet 736 in order to introduce the compressed air in the interior space 711 of the reservoir 71 via this inlet 736. Other pressurization systems known to those skilled in the art and suitable for introducing compressed air into the interior space 711 of the reservoir 71 via the input 736 can be used instead of the compressed air tank.
    As illustrated in FIG. 1, the conduit 76 has an inlet 101 disposed approximately at the bottom of the reservoir 71 and an outlet 102 extending below the bottom of the reservoir 71. This conduit 76 passes through the reservoir 71 through an orifice 103 made on the bottom of the tank 71. This orifice 103 has a diameter corresponding to the diameter of the conduit 76.
    According to an advantageous example illustrated in FIG. 1, in order to improve the mixing between the liquid 759 and the first fluid 79, the first fluid 79 discharged from the outlet 102 when the interior space 711 of the reservoir 71 is pressurized is guided in a diffusion conduit 104 disposed below the bottom of the tank 71 at the outlet 102 at the bottom of the tank 75. This diffusion conduit 104 extends transversely between the two opposite side walls and vertically oriented from the tank 75 and comprises a diffusion means from which the first fluid 79 is diffused within the tank 75. In the example of FIG. 1, the diffusion means comprises two nozzles 105 and 105 'arranged on the diffusion duct 104. In another example not illustrated in the figures, a single nozzle or more than two nozzles can be used. Furthermore, in another example, the diffusion means comprises orifices formed on the surface of the diffusion conduit 104, from which the first fluid 79 is diffused within the tank 75. As illustrated in FIG. 1, according to a example the outlet 102 is fixed to the diffusion duct 104 by fixing means of the screw-nut type.
    According to another example not illustrated in the figures, the diffusion conduit 104 is not used and the first fluid 79 is diffused from the outlet 102 of the conduit 76 in swan neck directly within the tank 75 in the mass liquid 759.
    According to another example not illustrated in the figures, the conveying means can be a diaphragm or a valve disposed at the bottom of the tank 71. This diaphragm or this valve can be configured so as to open when the pressure in the tank 71 exceeds a predetermined pressure threshold. According to one example, this predetermined pressure threshold is between 0.5MPa and lMPa, and preferably is equal to 0.7MPa.
    The installation 70 of FIG. 1 further comprises means for spreading the mixture of the liquid 759 and the first fluid 79 when the pressure in the tank 75 exceeds a predetermined pressure threshold.
    Typically, when the pressure in the tank 75 exceeds a predetermined pressure threshold, for example 0.7 MPa, a valve 77 is opened to spread the mixture of water and foaming product over a fire. It can be seen that the pressurization of the reservoir 71 results in a consecutive pressurization of the tank 75 via the conduit 76. Thus, in this example illustrated in FIG. 1, the means for spreading the mixture of the liquid 759 (water) and of the first fluid 79 (foaming product) is a valve 77 located at the bottom of the tank 75.
    According to another example not illustrated in the figures, the means for spreading the mixture of the liquid 759 and the first fluid 79 is a diaphragm.
    In addition, according to another example, this predetermined pressure threshold is between 0.5MPa and 1MPa, and preferably is equal to 0.7MPa as mentioned in the example above.
    Having a means for spreading the mixture of the liquid 759 and the first fluid 79 when the pressure in the tank 75 exceeds a predetermined pressure threshold results in a homogeneous mixture between the liquid 759 and the first fluid 79 and therefore to the generation of a homogeneous foam which is effective in dealing with fires.
    A second embodiment of the installation 70 is now described, as shown in FIG. 2, but only for its differences from the first embodiment of FIG. 1.
    ίο
    In particular, the embodiment of Figure 2 differs from the embodiment of Figure 1 in that the installation 70 of Figure 2 further comprises at least one recirculation duct 85. This recirculation duct 85 is located on at least one side wall of the tank 75 and is configured to recirculate the mixture of liquid 759 and the first fluid 79 within the tank 75. This recirculation improves the homogeneity of the mixture of liquid 759 and the first fluid 79 within of the tank 75.
    In more detail, according to the example of FIG. 2, a single recirculation conduit 85 is located between the bottom of the tank 75 and the diffusion conduit 104. The recirculation conduit 85 comprises a section conduit in “n” shape with an inlet 85a and an outlet 85b on this side wall of the tank 75. According to an example, the inlet 85a is located at a distance of 10 cm from the diffusion duct 104 and the outlet 85b is located at a distance of 10cm from the bottom of the tank 75. According to another example, the recirculation duct 85 comprises a section pipe in “U” shape.
    In addition, according to another example not illustrated in the figures, the inlet 85a is located on a first side wall of the tank 75 and the outlet 85b is located on a second side wall of the tank 75 opposite the first side wall.
    Furthermore, according to another example not illustrated in the figures, two recirculation conduits 85 located between the bottom of the tank 75 and the diffusion conduit 104 can be located symmetrically and opposite respectively on the first and second side walls of tank 75.
    In another example, not illustrated in the figures, more than two recirculation conduits 85 may be located on at least one side wall of the tank 75 to save installation time for the installation 70 and to improve the mixing of the liquid 759 and the first fluid 79 within the tank 75.
    Advantageously, according to one example, the recirculation duct 85 comprises a recirculation control means in the recirculation duct 85 configured to stop the recirculation of the mixture of the liquid 759 and the first fluid 79 when the pressure in the tank 75 exceeds a threshold of predetermined pressure.
    In the example in FIG. 2, this recirculation control means is a valve 88 situated in an illustrative manner in the middle of the recirculation duct 85.
    In another example not illustrated in the figures, this recirculation control means is a diaphragm.
    In the example of FIG. 2, the valve 88 is adapted to close when the pressure in the tank 75 exceeds a predetermined pressure threshold, for example equal to 0.7 MPa, in order to stop the recirculation of the mixture of the liquid 759 and the first fluid 79. This predetermined pressure threshold is equal to the predetermined pressure threshold corresponding to the opening of the valve 77 located at the bottom of the tank 75 to spread the mixture of the liquid 759 and the first fluid 79 over a fire. Thus, when the valve 88 closes, the valve 77 opens. A pipe not illustrated in the figures can be connected with the valve 77 in order to diffuse the mixture of the liquid 759 and the first fluid 79 over a fire.
    According to another example, the predetermined pressure threshold is between 0.5MPa and lMPa, and preferably is equal to 0.7MPa as mentioned in the example above.
    In another example not illustrated in the figures, the installation 70 comprises:
    at least one additional reservoir 71, known as an additional foam concentrate or retardant reservoir, intended to store in its interior space 711 a first additional fluid 79, the additional reservoir 71 being embedded in the tank 75,
    - At least one additional cover 73 arranged to close the at least one additional tank 71, the at least one additional cover 73 comprising at least one additional inlet 736 arranged to introduce air into the at least one additional tank 71 compressed in order to pressurize the interior space 711 of the at least one additional reservoir 71, and
    - At least one additional routing means arranged so that it makes it possible to route the first additional fluid 79 from the at least one additional reservoir 71 to the tank 75 when the interior space of the at least one additional reservoir 71 is pressurized after the introduction of compressed air by at least one additional inlet 736, so that the liquid 759 is mixed under pressure with the first additional fluid 79.
    The advantage of having at least one additional reservoir 71 linked with at least one additional cover 73 and at least one additional conveying means as described below, is to improve the efficiency and the functional reliability of the 70 installation as well as to facilitate maintenance and speed of return to service.
    According to a second aspect of the invention, a method is proposed for spreading the mixture of the liquid 759 and the first fluid 79 using the installation 70. This method comprises:
    a first step of introduction into the reservoir 71 and possibly into the at least one additional reservoir 71 of the compressed air in order to pressurize the interior space 711 of the reservoir 71 and possibly of the at least one reservoir 71 additional and thus to convey the first fluid 79 from the reservoir 71 and possibly from the at least one additional reservoir 71 to the tank 75, so that the liquid 759 included in the tank 75 is mixed with the first fluid 79, and
    - A second step for spreading the mixture of the liquid 759 and the first fluid 79 when the pressure in the tank 75 exceeds a predetermined pressure threshold.
    The embodiments presented above relate to an installation intended to spread the mixture of a liquid 759 and a first fluid 79 belonging to the fire protection field by foam but they can perfectly be transposed in other fields such as for example that of treatment with disinfectant solutions or even the field of agricultural treatments. The liquid 759 and the first fluid 79 used can vary depending on the technological field of application of these installations.
    According to one example, in the field of treatment with disinfectant solutions, the liquid 759 is water and the first fluid 79 is bleach. According to another example, in the field of agricultural treatments, the liquid 759 is a liquid fertilizer or a phytosanitary product in liquid form and the first fluid 79 is water.
    Preferably, the tank 75, the tank 71 and the cover 73 are made of metal. According to one example, this metal can be conventional steel, stainless steel or black steel. The metal of manufacture is chosen with respect to the pressures applied in the reservoir 71 and in the tank 75 as well as with respect to the liquid 759 and the first fluid 79 used.
    权利要求:
    Claims (13)
    [1" id="c-fr-0001]
    1. Installation (70) intended to spread the mixture of a liquid (759) and a first fluid (79), comprising:
    - a tank (75) comprising the liquid (759),
    - A tank (71) intended to store in its internal space (711) the first fluid (79), said installation being characterized in that said tank (71) is embedded in the tank (75) and in that it comprises in addition :
    - a cover (73) arranged to close the reservoir (71), the cover (73) comprising an inlet (736) arranged to introduce compressed air into the reservoir (71) in order to pressurize the interior space ( 711) of the reservoir (71),
    - A conveying means arranged so that it allows the first fluid (79) to be conveyed from the reservoir (71) to the tank (75) when the interior space (711) of the reservoir (71) is pressurized after the introduction of compressed air through the inlet (736), so that the liquid (759) is mixed under pressure with the first fluid (79), and
    - A means for spreading the mixture of the liquid (759) and the first fluid (79) when the pressure in the tank (75) exceeds a predetermined pressure threshold.
    [2" id="c-fr-0002]
    2. Installation according to claim 1, further comprising at least one recirculation duct (85) located on at least one side wall of the tank (75) and configured to recirculate the mixture of the liquid (759) and the first fluid ( 79) within the tank (75).
    [3" id="c-fr-0003]
    3. Installation according to claim 2, wherein the at least one recirculation duct (85) comprises a recirculation control means in the at least one recirculation duct (85) configured to stop the recirculation of the liquid mixture (759) and the first fluid (79) when the pressure in the tank (75) exceeds the predetermined pressure threshold.
    [4" id="c-fr-0004]
    4. Installation according to the preceding claim, wherein the recirculation control means in the at least one recirculation duct (85) is a valve (88) or a diaphragm.
    [5" id="c-fr-0005]
    5. Installation according to any one of the preceding claims, in which the predetermined pressure threshold is between 0.5MPa and lMPa, and preferably is equal to 0.7MPa.
    [6" id="c-fr-0006]
    6. Installation according to any one of the preceding claims, further comprising:
    - at least one additional reservoir (71) intended to store in its interior space (711) a first additional fluid (79), the additional reservoir (71) being embedded in the tank (75),
    - at least one additional cover (73) arranged to close the at least one additional reservoir (71), the at least one additional cover (73) comprising at least one additional inlet (736) arranged to introduce into the at least an additional reservoir (71) of compressed air in order to pressurize the interior space (711) of the at least one additional reservoir (71), and
    - At least one additional conveying means arranged so that it makes it possible to convey the first additional fluid (79) from the at least one additional reservoir (71) to the tank (75) when the interior space at least one additional reservoir (71) is pressurized after the introduction of compressed air by the at least one additional inlet (736), so that the liquid (759) is mixed under pressure with the first fluid (79) additional.
    [7" id="c-fr-0007]
    7. Installation according to any one of the preceding claims, in which the means for spreading the mixture of the liquid (759) and the first fluid (79) is a valve (77) or a diaphragm.
    [8" id="c-fr-0008]
    8. Installation according to any one of the preceding claims, in which the conveying means is a swan neck conduit (76).
    [9" id="c-fr-0009]
    9. Installation according to any one of claims 1 to 7, wherein the conveying means is a valve (88) or a diaphragm.
    [10" id="c-fr-0010]
    10. A method for spreading the mixture of a liquid (759) and a first fluid (79) using an installation (70) according to any one of the preceding claims, said method being characterized in that it includes:
    - A first step of introduction into the reservoir (71) and possibly into the at least one additional reservoir (71) of the compressed air in order to pressurize the interior space (711) of the reservoir (71) and possibly of the at least one additional reservoir (71) and thus of routing the first fluid (79) from the reservoir (71) and possibly from the at least one additional reservoir (71) to the tank (75), so that the liquid (759) included in the tank (75) is mixed with the first fluid (79), and
    - A second step for spreading the mixture of the liquid (759) and the first fluid (79) when the pressure in the tank (75) exceeds a predetermined pressure threshold.
    [11" id="c-fr-0011]
    11. The method of claim 10, wherein the mixture of the liquid (759) and the first fluid (79) is recirculated within the tank (75).
    [12" id="c-fr-0012]
    12. The method of claim 11, wherein the recirculation of the mixture of the liquid (759) and the first fluid (79) within the tank (75) is stopped when the pressure in the tank (75) exceeds the pressure threshold predetermined.
    [13" id="c-fr-0013]
    13. Method according to any one of claims 10 to 12, wherein the predetermined pressure threshold is between 0.5MPa and lMPa, and preferably is equal to 0.7MPa.
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    CH570174A5|1975-12-15|Installation for fighting fires in buildings - rapidly converts to use liquid or powder or mixture as extinguishing medium
    CA3049218A1|2020-01-17|System and necessary tank draining and associated draining and assembly processes
    FR2517220A1|1983-06-03|Fluid distributor for container - has housing which clips onto spout and has stem piercing cap
    同族专利:
    公开号 | 公开日
    FR3061771A1|2018-07-13|
    EP3568684A1|2019-11-20|
    FR3061662B1|2021-10-08|
    EP3568683A1|2019-11-20|
    WO2018130564A1|2018-07-19|
    FR3061771B1|2019-08-16|
    WO2018130566A1|2018-07-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1767248A1|1999-03-31|2007-03-28|Aerojet-General Corporation|Hybrid fire extinguisher|
    EP1273321A2|2001-07-02|2003-01-08|Schmitz GmbH|Device for fire fighting with pressurised air foam|
    US20100175897A1|2009-01-13|2010-07-15|Stephen Douglas Crump|Self-sustaining compressed air foam system|
    JPS58198741A|1982-05-15|1983-11-18|Toshiba Eng Constr Co Ltd|Seal structure of aperture part of gas chamber|
    GB2237393A|1989-10-20|1991-05-01|Marconi Co Ltd|Pressure-testing apparatus|
    GB9014494D0|1990-06-29|1990-08-22|Hygood Limited|Fire-extinguishing systems|
    FR2882523B1|2005-02-28|2007-04-27|Usines Desautel Soc Par Action|WATER EXTINGUISHER WITH AN ADDITIVE DOSE|
    US9958353B2|2015-02-02|2018-05-01|The University Of Akron|Apparatus and method for quantifying fluid loss in a closed system|FR3079930B1|2018-04-05|2022-03-04|Ad Venta|Tank head leak test procedure|
    US10996135B1|2021-01-25|2021-05-04|Inventus Power, Inc.|Test fixture and method of liquid leak testing an electronic device|
    法律状态:
    2018-10-12| PLSC| Publication of the preliminary search report|Effective date: 20181012 |
    2020-01-27| PLFP| Fee payment|Year of fee payment: 3 |
    2021-01-25| PLFP| Fee payment|Year of fee payment: 4 |
    2022-01-25| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1750204A|FR3061771B1|2017-01-10|2017-01-10|DEVICE AND METHOD FOR SEALING TESTING|
    FR1750204|2017-01-10|PCT/EP2018/050555| WO2018130566A1|2017-01-10|2018-01-10|Apparatus and method for spreading a mixture of a liquid and a first fluid|
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