EP4410413A1 - Système de mélange pour installations d'extinction d'incendie - Google Patents

Système de mélange pour installations d'extinction d'incendie Download PDF

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Publication number
EP4410413A1
EP4410413A1 EP24164350.1A EP24164350A EP4410413A1 EP 4410413 A1 EP4410413 A1 EP 4410413A1 EP 24164350 A EP24164350 A EP 24164350A EP 4410413 A1 EP4410413 A1 EP 4410413A1
Authority
EP
European Patent Office
Prior art keywords
extinguishing agent
motor
pump
mixing
proportioning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP24164350.1A
Other languages
German (de)
English (en)
Inventor
Alexander Schlepp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Firedos GmbH
Original Assignee
Firedos GmbH
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 Firedos GmbH filed Critical Firedos GmbH
Publication of EP4410413A1 publication Critical patent/EP4410413A1/fr
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C5/00—Making of fire-extinguishing materials immediately before use
    • A62C5/02—Making of fire-extinguishing materials immediately before use of foam
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/68—Details, e.g. of pipes or valve systems
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C5/00—Making of fire-extinguishing materials immediately before use
    • A62C5/002—Apparatus for mixing extinguishants with water
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
    • A62C99/0036—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
    • B01F23/451—Mixing liquids with liquids; Emulsifying using flow mixing by injecting one liquid into another
    • 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
    • B01F35/831—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 using one or more pump or other dispensing mechanisms for feeding the flows in predetermined proportion, e.g. one of the pumps being driven by one of the flows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C2/00—Rotary-piston engines
    • F03C2/30—Rotary-piston engines having the characteristics covered by two or more of groups F03C2/02, F03C2/08, F03C2/22, F03C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F03C2/304—Rotary-piston engines having the characteristics covered by two or more of groups F03C2/02, F03C2/08, F03C2/22, F03C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movements defined in sub-group F03C2/08 or F03C2/22 and relative reciprocation between members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2250/00—Geometry
    • F04C2250/30—Geometry of the stator
    • F04C2250/301—Geometry of the stator compression chamber profile defined by a mathematical expression or by parameters

Definitions

  • the present invention relates to a mixing system for fire extinguishing systems.
  • a fire extinguishing system in the sense of the present invention is a system having a pump, a pipe system and a foam agent mixing system with which an extinguishing agent can be applied, in particular through nozzles, foam pipes or foam generators.
  • the fire extinguishing system can be a stationary system such as a fire extinguishing system in a tank farm with a permanently mounted so-called monitor, i.e. a large jet pipe, or a permanently mounted sprinkler system in a building. However, it can also be a mobile system on a vehicle or roll-off container.
  • Such fire extinguishing systems are usually operated using water as an extinguishing agent.
  • an extinguishing agent additive in this case a foam agent, is usually first mixed into the extinguishing agent in a certain ratio.
  • the extinguishing agent-extinguishing agent additive mixture (the so-called "premix") is then foamed in a nozzle by supplying air and applied to the fire to be extinguished.
  • the volume ratio of the extinguishing agent additive to the extinguishing agent is typically between 0.5% and 6%.
  • extinguishing agent additive that can be mixed into the extinguishing agent is a wetting agent, which reduces the surface tension of the extinguishing agent, particularly the extinguishing water. This is advantageous, for example, when fighting forest fires because the extinguishing water can then wet larger areas, particularly on the leaves of trees, and can therefore be used more efficiently. Furthermore, the reduced surface tension allows the extinguishing water to penetrate deeper into the forest floor, for example to extinguish deeper embers.
  • foaming agents that can also be used as wetting agents (if necessary with other mixing rates, in particular with a minimum mixing rate of 0.1%).
  • the invention is described below in part using the example of water as an extinguishing agent and foam agent as an extinguishing agent additive. However, this is not to be understood as limiting. The invention can also be used when any extinguishing agent additive is added to any extinguishing agent.
  • both the extinguishing agent and the extinguishing agent additive can be provided in an extinguishing agent tank or in an extinguishing agent additive tank or via an extinguishing agent supply line or via an extinguishing agent additive supply line. If the extinguishing agent is provided in an extinguishing agent tank, an extinguishing agent pump is also required, which pumps the extinguishing agent from the extinguishing agent tank, pressurizes it and feeds it to the proportioning system.
  • the components just mentioned are not part of the proportioning system itself.
  • the mixture to be created from the extinguishing agent and the extinguishing agent additive i.e. the premix
  • the mixture to be created from the extinguishing agent and the extinguishing agent additive i.e. the premix
  • This activates the foaming agent in the premix and foams the premix so that an extinguishing agent foam emerges from the foaming nozzle and can be applied to the fire.
  • the air required to foam the foam agent can also be supplied to the premix in the form of compressed air.
  • a CAFS system Compressed Air Foam System
  • the mixing system has a mixing pump through which the extinguishing agent additive can be pumped and mixed with the extinguishing agent.
  • the proportioning pump is driven by a motor, which in turn is driven by a flow of the extinguishing agent itself.
  • the proportioning system thus has a water motor that is driven by the extinguishing water flow.
  • the output shaft of the water motor is coupled to the input shaft of the proportioning pump, for example by means of a coupling.
  • the extinguishing agent additive pumped by the proportioning pump is then fed through an extinguishing agent additive line from the proportioning pump into a proportioning line and mixed there with the extinguishing agent stream to create the premix.
  • This design of the proportioning system in which the proportioning pump is driven by the existing extinguishing agent flow, has the advantage that the proportioning pump does not require any external drive energy, particularly electricity, which makes the proportioning system very fail-safe. Furthermore, the delivery rate of the proportioning pump is essentially proportional to the speed of the motor, which in turn is essentially proportional to the flow rate of the extinguishing agent flow. In this way, an essentially constant proportioning rate is automatically achieved without the need for additional control or regulation devices.
  • the KR 20-0378222 Y1 relates to a mixing system which basically corresponds to the mixing system according to the present application.
  • the mixing pump in this case is a piston pump.
  • the CN106468252A relates to a piston pump which is particularly intended for the transfer of a corrosive liquid at variable pressure.
  • the ITMI20091679 A1 relates to a fuel system for an internal combustion engine, which has a fuel pump in the form of a piston pump.
  • the US 2019/0219051 A1 relates to a suction distribution pipe for a piston displacement pump, which distributes a fluid to the individual cylinders of the pump and enables a fluid flow at a uniform speed to each cylinder.
  • such a proportioning system has the problem that individual components, in particular the proportioning pump, can be exposed to an impermissibly high pressure of the extinguishing agent, the extinguishing agent additive and/or the premix and can therefore be damaged or even destroyed. This also endangers the operational safety of the proportioning system.
  • the invention is therefore based on the object of increasing the operational safety of a proportioning system for fire extinguishing systems with the structure described above.
  • the invention is based on a mixing system for fire extinguishing systems for mixing an extinguishing agent additive, in particular a foam agent, to an extinguishing agent, in particular water.
  • the proportioning system has a motor that can be driven by an extinguishing agent flow, in particular a water motor, with an inlet for supplying the extinguishing agent to the motor, in particular from an extinguishing agent tank or from an extinguishing agent supply line, an outlet for discharging the extinguishing agent from the motor and an output shaft driven by the motor.
  • a motor that can be driven by an extinguishing agent flow, in particular a water motor, with an inlet for supplying the extinguishing agent to the motor, in particular from an extinguishing agent tank or from an extinguishing agent supply line, an outlet for discharging the extinguishing agent from the motor and an output shaft driven by the motor.
  • the mixing system further comprises a mixing pump for conveying the extinguishing agent additive, in particular a piston pump, with a drive shaft which is coupled to the output shaft of the motor, an inlet for providing the extinguishing agent additive, in particular from an extinguishing agent additive tank or from an extinguishing agent additive supply line, and an outlet for discharging the extinguishing agent additive.
  • a mixing pump for conveying the extinguishing agent additive in particular a piston pump
  • a drive shaft which is coupled to the output shaft of the motor
  • an inlet for providing the extinguishing agent additive in particular from an extinguishing agent additive tank or from an extinguishing agent additive supply line
  • an outlet for discharging the extinguishing agent additive in particular from an extinguishing agent additive tank or from an extinguishing agent additive supply line
  • the mixing system has a mixing line with a first, motor-side end and a second, output-side end, wherein the motor-side end is fluidly connected to the output of the motor.
  • the admixing system has an extinguishing agent additive line with a first, pump-side end and a second, admixing line-side end, wherein the pump-side end is fluidically connected to the outlet of the admixing pump and the admixing line-side end is fluidically connected to the admixing line at an admixing point.
  • the motor is a rotary motor in which a rotor is rotatably mounted in such a way that it at least temporarily touches an outer wall of a working chamber of the motor during its rotation, wherein an outer wall of the working chamber in a cross section perpendicular to a rotation axis of the rotor has, at least in sections, essentially the shape of a logarithmic spiral.
  • the rotary motor is preferably a water motor operating according to the displacement principle, in which the rotor is designed in several parts and has a rotor body and several radially displaceable blades (so-called The radial displacement of the paddles with each revolution of the motor results in a back and forth movement of the paddles at a high frequency. In conventional water motors, this can lead to vibrations and to the water motor running unevenly. This can place mechanical stress on the water motor, which has a negative effect on its service life and operational reliability.
  • the smooth running of the water motor can be improved if the radially outer ends of the paddles describe a path in the form of a logarithmic spiral at least in sections during their movement.
  • a logarithmic spiral is a spiral in which the distance from its center changes by the same factor with each revolution of the spiral.
  • the cross section of the working space perpendicular to a rotation axis of the rotor is designed, at least in sections, essentially in the form of a logarithmic spiral.
  • the lower mechanical load on the water motor improves the operational reliability of the mixing system.
  • the motor is a rotary motor in which a rotor is rotatably mounted in a drainage housing.
  • the wall of the drainage housing has at least one through-slot, in particular at least one through-slot extending substantially in a plane perpendicular to a rotation axis of the rotor, for the inlet of the extinguishing agent into the drainage housing and/or for the outlet of the extinguishing agent from the drainage housing.
  • the wall of the drainage housing In order for the extinguishing agent to enter the drainage housing to drive the rotor there and to exit the drainage housing again, the wall of the drainage housing must not be closed, but must have at least one opening through which the extinguishing agent can flow.
  • the second aspect provides at least one through slot in the wall of the drainage housing.
  • This preferably runs essentially in a plane perpendicular to a rotation axis of the rotor in order to cause the lowest possible flow resistance for the extinguishing agent.
  • two, three or more through slots, in particular a plurality of through slots, are preferably arranged in the wall of the drainage housing.
  • a through slot is to be understood in the usual sense as an elongated, in particular straight opening, which completely penetrates a surface, in this case the wall of the drainage housing, and thus creates an opening from one side of the surface to the other side of the surface.
  • Through slots in the wall of the drainage housing cause a lower flow resistance for the extinguishing agent than, for example, Through holes in the wall of the drainage housing, as used in conventional engines with the design considered here.
  • the proportioning pump is a piston pump, and the inlet of the proportioning pump is arranged on the proportioning pump in such a way that the extinguishing agent additive can flow into the proportioning pump substantially parallel to the direction of movement of at least one of the, preferably all, pistons of the proportioning pump.
  • This design measure results in improved suction characteristics, particularly for extinguishing agent additives with high viscosity, compared to conventional angled connections at the inlet of the proportioning pump, which often have sharp edges on the inside.
  • the extinguishing agent additive does not have to be diverted when entering the proportioning pump before it flows into the cylinders belonging to the pistons. This significantly reduces the flow resistance to which the extinguishing agent additive is exposed at the inlet of the proportioning pump and the resulting pressure loss. This improves the operational reliability and efficiency of the proportioning system.
  • the proportioning pump has a relief valve, in particular integrated in its pump cover. This protects the proportioning pump from excessive pressure of the extinguishing agent additive, which can occur, for example, due to faulty feeding from an extinguishing agent additive tank or from an extinguishing agent additive supply line.
  • the water motor 1 of a mixing system according to the first and second aspect not belonging to the claimed invention is in the embodiment according to Fig.1 a rotary motor operating according to the displacement principle.
  • the water motor 1 has a housing 2 with a through-opening which connects an inlet 3 with a working chamber 10 and an outlet 4. In this way, the extinguishing water can flow through the water motor 1 from its inlet 3 through the working chamber 10 in the direction of the outlet 4.
  • a tubular drainage housing 5 the outside of which has a cylindrical shape, is arranged in a rotationally fixed manner relative to the housing 2.
  • the axis of the cylinder runs perpendicular to the flow direction of the water motor 1 (in Fig.1 perpendicular to the plane of the sheet).
  • Through-slots 12, 13 are provided in the wall of the drainage housing 5, through which the extinguishing water can flow.
  • a rotor 9 with a cylindrical rotor body 8 is arranged, which is mounted so as to be rotatable about a rotation axis.
  • the axis of rotation of the rotor 9 runs parallel to the axis of the drainage housing 5, but is offset from it, so that the rotor 9 is arranged eccentrically in the drainage housing 5.
  • the sickle-shaped cavity remaining between the outer wall of the rotor body 8 and the inner wall 11 of the drainage housing 5 forms the working space 10 of the water motor 1.
  • the outer wall of the rotor body 8 forms the inner wall of the working space 10
  • the inner wall 11 of the drainage housing 5 forms the outer wall of the working space 10.
  • the inner wall 11 of the drainage housing 5 is slightly “bulged” radially outwards in a circular arc shape in cross-section (in Fig.1 at the upper edge of the rotor body 8).
  • the rotor 9 also has two wing-shaped paddles 6, 7, which are inserted into radial slots in the rotor body 8.
  • the paddles 6, 7 are radially displaceable within the rotor body 8 and can project radially outward beyond it.
  • the paddles 6, 7 also have recesses (not shown) in their respective middle parts, which ensure that they do not collide with one another at their intersection point on the rotation axis of the rotor 9.
  • the radial extension of the paddles 6, 7 is dimensioned such that each paddle 6, 7 approximately touches the inner wall 11 of the drainage housing 5 at both ends, whereby the paddles 6, 7 are still freely movable when the rotor 9 rotates.
  • the paddles 6, 7 are periodically pushed back and forth due to the eccentric arrangement of the rotor 9 in the working space 10.
  • the paddles 6, 7 form chambers of different volumes in the working space 10 with the outer wall of the rotor body 8 and the inner wall 11 of the drainage housing 5.
  • the rotor 9 is set in rotation by the extinguishing water. In this way, a The output shaft (not shown) of the water motor 1, connected to the rotor 9, is set in rotation in order to drive a mixing pump.
  • the water motor 1 runs unsteadily if the inner side 11 of the drainage housing 5 also has a cylindrical shape - apart from the "bulge" described above.
  • the sharp, axially running edges that form at the transition between the cylindrical shape and the aforementioned bulge lead to a shock every time one end of a paddle 6, 7 is passed over. These shocks cause vibrations and unsteady running of the water motor 1, particularly at higher speeds of the water motor 1.
  • the inner side 11 of the drainage housing 5 is therefore divided into individual sections, which Fig.1 shown in dashed lines, are designed in the form of a logarithmic spiral. In this way, the sharp edges mentioned on the inside 11 of the drainage housing 5 and thus the impacts on the ends of the paddles 6, 7 are avoided, whereby the operation of the water motor 1 becomes considerably smoother.
  • a proportioning pump 20 of a proportioning system according to the invention is shown.
  • the proportioning pump 20 has the form of a piston pump with three pistons 24, 25, 26, which move up and down parallel to one another in the direction of the double arrows 27, 28, 29 in a respective cylinder (not shown) of the proportioning pump 20.
  • the pistons 24, 25, 26 and the associated cylinders are accommodated in a housing 21 of the proportioning pump 20.
  • the proportioning pump 20 has an inlet 22 through which an extinguishing agent additive can be supplied to it.
  • the inflow of the extinguishing agent additive takes place in the direction of arrow 23 and thus parallel to the direction of movement 27, 28, 29 of the pistons 24, 25, 26.
  • Fig. 2 also represents a proportioning pump 20 of a proportioning system according to the fourth aspect not belonging to the claimed invention.
  • a relief valve 30 Behind the inlet 22 of the proportioning pump 20 and before the cylinders with the pistons 24, 25, 26 there is a relief valve 30 which closes when the pressure of the extinguishing agent additive flowing into the proportioning pump 20 is too high and thus protects the proportioning pump 20 from damage or even destruction.
  • the relief valve 30 is integrated in the housing 21 of the proportioning pump 20 and in particular in its pump cover and therefore does not require any additional installation space.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
EP24164350.1A 2019-11-05 2020-11-02 Système de mélange pour installations d'extinction d'incendie Pending EP4410413A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202019004525.2U DE202019004525U1 (de) 2019-11-05 2019-11-05 Zumischsystem für Feuerlöschanlagen
PCT/EP2020/080632 WO2021089456A2 (fr) 2019-11-05 2020-11-02 Système de mélange pour installations d'extinction d'incendie
EP20800633.8A EP4054748A2 (fr) 2019-11-05 2020-11-02 Système de mélange pour installations d'extinction d'incendie

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP20800633.8A Division EP4054748A2 (fr) 2019-11-05 2020-11-02 Système de mélange pour installations d'extinction d'incendie

Publications (1)

Publication Number Publication Date
EP4410413A1 true EP4410413A1 (fr) 2024-08-07

Family

ID=73043270

Family Applications (4)

Application Number Title Priority Date Filing Date
EP24164352.7A Pending EP4410414A1 (fr) 2019-11-05 2020-11-02 Système de mélange pour installations d'extinction d'incendie
EP24164345.1A Pending EP4414060A1 (fr) 2019-11-05 2020-11-02 Système de mélange pour installations d'extinction d'incendie
EP20800633.8A Pending EP4054748A2 (fr) 2019-11-05 2020-11-02 Système de mélange pour installations d'extinction d'incendie
EP24164350.1A Pending EP4410413A1 (fr) 2019-11-05 2020-11-02 Système de mélange pour installations d'extinction d'incendie

Family Applications Before (3)

Application Number Title Priority Date Filing Date
EP24164352.7A Pending EP4410414A1 (fr) 2019-11-05 2020-11-02 Système de mélange pour installations d'extinction d'incendie
EP24164345.1A Pending EP4414060A1 (fr) 2019-11-05 2020-11-02 Système de mélange pour installations d'extinction d'incendie
EP20800633.8A Pending EP4054748A2 (fr) 2019-11-05 2020-11-02 Système de mélange pour installations d'extinction d'incendie

Country Status (5)

Country Link
US (1) US20220339480A1 (fr)
EP (4) EP4410414A1 (fr)
CN (1) CN114616034B (fr)
DE (1) DE202019004525U1 (fr)
WO (1) WO2021089456A2 (fr)

Citations (5)

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EP0647458A1 (fr) * 1993-10-08 1995-04-12 ROSENBAUER INTERNATIONAL Aktiengesellschaft Dispositif mélangeur pour ajouter des additifs à un liquide
KR200378222Y1 (ko) 2004-12-10 2005-03-11 엠티케이산업개발 주식회사 약제 혼합 장치
ITMI20091679A1 (it) 2009-09-30 2011-04-01 Bosch Gmbh Robert Impianto di alimentazione carburante ad un motore a combustione interna
CN106468252A (zh) 2016-10-25 2017-03-01 舟山梅朋水处理有限公司 一种液体变压传送的设备及系统
US20190219051A1 (en) 2018-01-15 2019-07-18 Kcf Technologies, Inc. Suction manifold for hydraulic fracturing pump

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US2347944A (en) * 1942-05-22 1944-05-02 Fowler Elbert Rotary pump
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WO2021089456A3 (fr) 2021-07-08
EP4054748A2 (fr) 2022-09-14
DE202019004525U1 (de) 2021-02-10
CN114616034A (zh) 2022-06-10
EP4410414A1 (fr) 2024-08-07
EP4414060A1 (fr) 2024-08-14
WO2021089456A2 (fr) 2021-05-14
US20220339480A1 (en) 2022-10-27
CN114616034B (zh) 2024-02-27

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