WO2010137933A1 - Charges générant un gaz pour des dispositifs de suppression d'incendie en aérosol et technologie de production correspondante - Google Patents

Charges générant un gaz pour des dispositifs de suppression d'incendie en aérosol et technologie de production correspondante Download PDF

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Publication number
WO2010137933A1
WO2010137933A1 PCT/MK2009/000002 MK2009000002W WO2010137933A1 WO 2010137933 A1 WO2010137933 A1 WO 2010137933A1 MK 2009000002 W MK2009000002 W MK 2009000002W WO 2010137933 A1 WO2010137933 A1 WO 2010137933A1
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WIPO (PCT)
Prior art keywords
gas generating
generating charge
technological
indicated
production
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PCT/MK2009/000002
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English (en)
Inventor
Boris Jankovski
Original Assignee
Boris Jankovski
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.)
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Application filed by Boris Jankovski filed Critical Boris Jankovski
Publication of WO2010137933A1 publication Critical patent/WO2010137933A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • C06B45/12—Compositions or products which are defined by structure or arrangement of component of product having contiguous layers or zones
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • A62D1/06—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires containing gas-producing, chemically-reactive components
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06D—MEANS FOR GENERATING SMOKE OR MIST; GAS-ATTACK COMPOSITIONS; GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART)
    • C06D5/00—Generation of pressure gas, e.g. for blasting cartridges, starting cartridges, rockets
    • C06D5/06—Generation of pressure gas, e.g. for blasting cartridges, starting cartridges, rockets by reaction of two or more solids

Definitions

  • Gas generating charges represent composite substances for application in various types of gas generators and the technology of their production represent an innovation in the area of chemical industry, in the sub-area of explosives and charges, in the category of gas generating substances, in the category of: detonation or ignition devices (sub-type of gaseous or fume generating substances).
  • the innovation pertains to the area of day-to-day human necessities in the sub-area of human safety and fire protection in the category of: chemical fire suppression devices or suppression of hazardous chemical substances, as well as in the category of fire suppression (under the section of Hand Held Fire Suppression Devices) and handling of the fire equipment.
  • the innovation is marked with the labels: A62C 3/00, A62C 3/06, A62C 3/07, A62C 8/00, A62C 39/00, A 62 D 1/06, C 06 C 5/00, C 06 C 9/00; C 06 D 5/06.
  • the innovation resolves a problem of efficient fire suppression, in conditionally closed environments, by application of a solid composite substance whose combustion enables rapid aerosol activation in the protected area, including a technological solution for production of adequate charges of the substance in fire suppression devices.
  • the gas production - the combustion products fully comply with environmental standards (they are ozone friendly, non-toxic for people and animals, non-corrosive for metals and non- metals) thus enabling efficient fire suppression in conditionally closed environments.
  • Fire - represents a process of uncontrolled combustion of the burning substance.
  • fire suppression devices and equipment that can suppress fire to a bigger or lesser extent, where water discharge, various powders, foams, chemical compounds are used as fire suppression devices, using various types of equipment to direct the fire suppression devices towards the location of the fire.
  • the principle of fire suppression applied in the innovation in question resembles the system based on aerosol discharge, small particles, in the protected area. By application of aerosols a higher level of protection can be achieved due to their tiny dimensions, and the large overall surface which can initiate a reaction together with free radicals generated during the burning process, and can stop the burning process.
  • the pyrotechnic aerosol fire suppression composition is presented in the patent specification US 5,831 ,209 of November 3 rd 1998 that contains 67-72% Potassium nitrate, 9-16% Dicyandiamide and 40-12% of Potassium bicarbonate, Potassium benzoate or Potassium hexacyanoferrate and 8-12% Phenol formaldehyde resin.
  • the fire suppression device is produced in a classical pyrotechnic installation where the phenol formaldehyde resin is diluted in a mixture of Ethyl alcohol and Acetone, and the other components are added subsequently to the solution until a uniform mass is obtained by mixing in a mixer which is left to dry afterwards. This mixture is used to fill in the aerosol generators that are afterwards used as fire suppression devices.
  • the proposed innovation consists of:
  • thermoplastic polymers such as, polyether block amide and modified Polyvinyl chloride and Butadien-acrylonitrile are used as binders, and
  • the technology for their finalization by means of a two-phase technological process which enables the production of the gas generating charge and formation of inhibitor surfaces, used for guidance or directing of other crucial parameters applied inside the aerosol fire suppression gas generators.
  • the proposed two-phase technological process enables inserting of compounds with liquid, amorphous and crystal structure into the desired mixture in two phases.
  • the first phase consists of production of semi-product in the form of 0.5 to 5.0 mm thick sheet out of which granules with 3x3mm dimensions are prepared.
  • the second phase represents a final integration of the gas generating charge together with the inhibitor surface of desired geometry.
  • the integration of the gas generators activation subsystem is also performed during this phase, by an electric impulse installed inside the gas generating charge, which significantly raises the safety level during gas generators activation and performance.
  • the gas production - the combustion products fully comply with environmental standards (they are ozone friendly, non-toxic for people and animals, non-corrosive to metals and non- metals) and enable efficient fire suppression in conditionally closed environments.
  • the gas generator fulfills its function and emits a gas produced in correlation with the following parameters.
  • the burning rate of the gas generating charge represents an important characteristic that directly affects the basic properties and the use of the gas generator.
  • the burning rate can be induced by granulation of the oxidizers and technological additives and the pressure that can be achieved during the gas generation relative to its construction.
  • Chemical compounds used for regulating the burning rate of the proposed innovation are: Oxamide (C 2 H 4 N 2 O 2 ), Ferrocene (Ci 0 H 10 Fe), Nitroguanidine (CH 4 N 4 O 2 ), Iron oxide (Fe 2 O 3 ).
  • Oxamide acts as "cool oxidizer", reduces the burning rate up to 50%, as well as the combustion temperature level, while Nitroguanidine act a gas diluting agent.
  • Iron oxide and Ferrocene generate an acceleration of the burning rate.
  • the ratio of the integrated modifiers - the burning rate and the final geometry of the pill - is ensured by the technological capabilities for adhering layers of inhibitor over the body of the pill, determined by the free burning area, by the granulation of the selected oxidizers and the pressure of the chemical reactions performed inside the gas generator.
  • a portion of a minimum one component (0.5 - 3.0)% in quantity is added to the gas generating mixture.
  • the primary objective is to achieve the biggest possible number of particles (aerosols) in the smallest possible diameter per unit of substance, in order to encompass the largest possible area with aerosols, thus modifying the termination of the burning process.
  • aerosols particles
  • the high temperature level reached during the combustion process represents a constraint. Due to this fact, necessary compromises in the chemical composition of the mixture have been made, which are not likely to make the construction of the device more complicated, with respect to the applied thermo-protective materials and cooling of the gases emitted at the outlet of the gas generator.
  • At least two oxidizers of defined granulometric structure are selected in this innovation and incorporated in the composition of the gas generating mixture used for producing gas generating charges in combination with other chemical components, especially the integration of a polymer containing a high percentage of oxygen. This reduces the percentage of oxidizer and provides for the possibility to insert other chemical components, by which a highly efficient gas production can be achieved.
  • the gas generating charge can achieve an efficiency rate of 28 gr/m 3 up to 70 gr/m 3 . This provides for a wide rage of applications, while taking into consideration the required level of safety and the specifics of the protected area.
  • the proposed innovation offers conditions for the production of gas generating charges, whose combustion can produce gases with smaller, larger or similar molecular masses compared to the air.
  • the suggested production method of the gas generating charges provides for production of an integral gas generating charge which can contain up to three types of gas generating substances (layers), where each layer during its combustion can emit gases with different molecular masses.
  • the space in between would not be filled with gas, i.e. its concentration would be diluted significantly.
  • Figure 1 illustrates the standard solution where no.1 stands for the gas generating charge and no.2 signifies the layer over which the combustion area is shown.
  • Figure 2 illustrates the option where the gas generating charge contains two types of gas generating mixtures, where no.1 stands for the mixture with higher molecular mass than the air and no.2 represents the gas generating mixture having smaller molecular mass than the air, and no.3 the layer of inhibitor.
  • Figure 3 illustrates the option where the gas generating mixture contains three types of mixtures, where no.1 represents the mixture which has molecular mass similar to the air, no.2 the mixture with a molecular mass larger than the molecular mass of the air, and no.3 the mixture with molecular mass smaller than the molecular mass of the air.
  • No.4. represents the layer of inhibitor.
  • the design of the desired technological parameters is conditioned by the gas generating combustion mode.
  • the burning rate of the gas generating charge can be directly affected by its geometry, including the rate of spreading of the gases, the pressure generated inside the fire suppression device, the heat transferred onto the gas generator, i.e. on the overall combustion process, which in itself can affect other characteristics of the gas generating charge.
  • the method of putting of the inhibitor layer forming the active burning surface is also important.
  • this problem has been resolved in a separate phase of the production.
  • the layer of inhibitor is put onto the ready-made charge in a separate process, mainly on the external surfaces. Very often, due to the incompatibility of the substances this layer might detach itself, causing an uncontrolled combustion which might result in an explosion of the fire suppression device.
  • This innovation proposes an application of a two-phase technological procedure during which the gas generating charge might acquire a shape of a cylinder, a hollow cylinder, or a cylinder with an inner star-shaped hole or an open star-shaped hole, acquired during the final integration process along with the layer of inhibitor applied during the technological procedure of final integration with the purpose of defining the desired combustion area.
  • Possible shapes of the gas generating charge are illustrated in Figure 4,5,6,7,8,9,10,11 , where Figure 4 shows a cylinder-shaped gas generating charge, Figure 5 shows cylinder- shaped gas generating charge with inner cylinder-shaped hole, Figure 6 illustrates a cylinder- shaped gas generating charge with central cylinder hole, marked as 1 and external surface of inhibitor-coated cylinder marked as 2.
  • Figure 7 illustrates a cylinder-shaped gas generating charge with central hole marked as 1 , inhibited on all external surfaces, marked as 2.
  • Figure 8 is an illustration of the gas generating charge with a central hole, where no.1 represents the layer of the inhibitor, and no.2 and no.3 are inhibitor layers of gas generating substance emitting gases with different molecular masses.
  • Figure 9 represents a cylinder shaped charge with three types of gas generating mixtures marked as 2, 3, and 4, coated with a layer of inhibitor on the external surface marked as 5 for applications where the gas generating charge has to contain up to three types of different generator charges.
  • Figure 10 shows a cylinder-shaped charge with an internal star-shaped gas generator charge marked as 2, inhibited on the external surface, marked as 1.
  • Figure 11 shows external star-shaped gas generating charge, with a cylinder-like surface for applications that require fast dispersion of the gas generating mixture.
  • Solid oxidizers are used, substances that can easily release oxygen from its composition, which enter into chemical reaction (exothermic process) with other components contained in the mixture thus producing gaseous products and heat.
  • the oxidizer should provide a sufficient quantity of oxygen, if possible the maximum quantity, to ensure a complete combustion of the other components of the gas generating charge and produce the least possible quantity of solid residue.
  • the oxidizer accounts for (60-85%) of the volume depending on the portion of the filler (other compounds of the gas generating charge belong here) that the binder can absorb.
  • the oxidizer contains particles of different grain size, so that large granulation particles could be mixed with smaller particles in order to ensure an even distribution of the other components in the gas generating mixture.
  • the granulometric composition of all of the gas generating mixture components is extremely important, especially the oxidizer, since it can directly affect the quality of the gas production.
  • the expected final gaseous products-several types of oxidizers are used in the category of: Potassium nitrate, Potassium perchlorate, Ammonium perchlorate, Ammonium nitrate, Sodium or barium nitrate.
  • oxidizers included in the gas generating mixture out of which one portion has the granulation of up to 30 microns, the second portion has a granulation of up to 90 microns and the third portion has a granulation of up to 200 microns.
  • the burning rate of the gas generating charge can be modified, being one of the key parameters of the gas generating charge.
  • the binder determines and defines the gas generating charge production technology.
  • a wide range of polymers are used as binders that can be divided into thermoplastics and thermo sets.
  • the common product processing methods where thermoplastic polymers are used are by calendaring and extruding, while the thermo sets are processed by casting and squeezing.
  • thermoplastic binders Polyether block amide and modified Polyvinyl chloride with Butadien- acrylonitrile.
  • the two polymers applied are characterized by low temperature and processing, i.e. the polyether block amide processing temperature ranges between 95°C - 120 0 C, whereas the modified polyvinyl chloride ranges between 100 0 C - 120 0 C.
  • the processing temperature is crucial, since it is below the level of dilution of the Ammonium perchlorate when used as an oxidizer to avoid the creation of micro cavities which in turn might result in uncontrolled combustion and very often in explosion of the gas generating charge.
  • the Polyether block amide based binder of the gas generating charge can ensure stability at -55°C, which enables the use of the gas generating charge under extremely low temperatures, especially for applications in the aviation and space technologies.
  • the binder accounts for 8% to 20% in the composition.
  • thermo sets such as: Melamine resin, Phenol-formaldehyde, Epoxy and Polyether resin that have a share of 10% to 20% in the weight and in that case the gas generating charge is produced by squeezing.
  • the combustion rate is equal to the vertical spreading of the zone of reaction on the surface, in a unit of time. It depends on the composition, pressure, temperature, and physical structure of the mixture (transparency, density, granulation).
  • Oxamide C 2 H 4 N 2 O 2
  • Ferrocene C 10 H 10 Fe Nitroguanidine CH 4 N 4 O 2
  • Iron oxide Fe 2 O 3
  • Carbon black are applied in the composition of the gas generating charge in quantities ranging from 0.5% to 3.5% in weight.
  • the technological additives are introduced to facilitate the processing and to ensure stability of the gas generating charge during its performance, such as the Stearates of
  • At least one of the above mentioned technological additives is added to the composition of the gas generating charge in the range of 0.025% up to 2.0%.
  • Additives are added with the purpose of streamlining the chemical reactions to obtain the desired gas production and gas products with various molecular masses where at least two components are used to achieve this, in the category of Carbon black, Magnesium, Potassium Chloride or
  • the quantity of the binder remains the same or is 10% higher than the applied binding component in the gas generating charge, with the purpose of achieving an identical density of the inhibitor sheet with the sheet of the gas generating charge.
  • This enables a full compatibility between the gas generating charge and the inhibitor mixture that is paramount for the technological process of final integration of the gas generating charge.
  • the inhibitor layer plays the role of protecting the gas generating charge from external influences, defining the areas where the combustion process of the gas generating charge will take place, while providing conditions for regulation of the combustion process.
  • the inhibitor sheet is used in the process of defining of the technological parameters as a complete substitution of the gas generating sheet and the gas generating charge, since it fully defines (imitates) all characteristics of the gas generating charge from a technological point of view.
  • the production technology of the thermo-protective or inhibitor sheet is identical to the production of the gas generating sheet.
  • This system sends out information about the energy needed to activate the combustion process.
  • the activation is carried out either by electrical impulse which is received from the fire alarms (various types of sensors) or by manual activation.
  • Industrially produced squibs are used for this purpose consisting of an initiator-electrical igniter, relayed charge usually with gunpowder or pressed pyrotechnic mixture and main charge that enables the ignition of the gas generating charge.
  • double ignition systems are installed.
  • an igniter-electrical lighter which consists of a 0.3-0.7 mm thick highly resistant wire which is placed on the surface of the pre-form of the gas generating charge during its integration in the second phase of its production process and it is processed together in one integral unit.
  • the electric circuit module heats up the electric igniter which results in ignition of the gas generating charge thus initiating the combustion process and emission of gaseous products from the gas generating fire suppression device.
  • Figure no. 12 illustrates the manner of setting up the gas generating activation system, where no.1 indicates the gas generating charge, no.2 the igniter and no.3 the protective sheet.
  • the process of production takes place in two phases.
  • the fire suppression device is produced in a form of a sheet.
  • the fire suppression pill is produced in its final shape, based on the produced gas generating mixture and the layer of inhibitor in a form of a sheet.
  • the mill is produced from non-corrosive materials.
  • the mill should enable grinding of the raw materials in a wide variety of fractions.
  • the grinding equipment should be placed in another room separated from other facilities, on
  • Each of the raw materials is poured into vertical vessels (hoppers), with separate dosage systems as shown on Figure 13 marked as 3, 4, and 5. They have a dosing system by means of which the necessary quantities of each substance are poured into a separate vessel, marked as 6, and placed afterwards on digital scales for precise measurements of the components marked as 7, one for measuring the oxidizer, the second for measuring the binder and the third for measuring of the other components.
  • a vertical mixer for mixing the burning rate regulation modifiers and the technological supplements and additives is required for this purpose, marked as 9.
  • Another mixer used for the preparation of the binder with the option of heating up the substance marked as 8.
  • the measured quantity of oxidizers (6), the prepared polymer (6.1) and the mixture of additives, technological additives and modifiers (6.2) are poured into vertical helicoids mixer marked as 10, where the homogenization of the prepared mixture is performed by adding a homogenous substance which is then transferred into separate vessels that can be sealed hermetically.
  • the rolls are heated up to the processing temperature level according to the characteristics of the applied polymer.
  • Each of the rolls has a drive group that enables their rotation forward and backward as well as regulation of the number of rotations, according to given technological procedure ranging from 5 to 30 rpm, a system for precise separation and approximation of the distance of 0.5 up to 5mm, but also a system of rapid separation in critical situations.
  • a separate control unit is used to operate the technological parameters of the two-roll mill, marked as 11.
  • Stools for placing of the ready made product should be available as auxiliary equipment, marked as 15 on the drawing including equipment for packing and hermetic sealing of the final semi-product in the form of a sheet, including a package for hermetical sealing of the product, in order to store it for longer period of time.
  • this is produced in three gradations: up to 30 microns, up to 90 microns and up to 160 microns, respectively.
  • each of the components is to be measured separately. All chemical compounds, except for the oxidizer are collected in one vessel, whereas the oxidizers are collected in a separate vessel which is to be sealed hermetically.
  • the mixed raw material is collected in a separate vessel and then poured into another vertical mixer where the oxidizing substances are deposited.
  • the stirred mixture is collected into a separate vessel, which is sealed hermetically.
  • the duration of the mixing process is defined according to the characteristics of the mixture and it is defined experimentally for each type of mixture separately.
  • the mixing process lasts 15 to 60 minutes.
  • One lot of the prepared mixture is poured among the rolls rotating at a low speed, which gradually increases along with the process of jellification reaching a maximum rotational speed of the rolls at a rate of 20 to 28 rpm.
  • the rolls should be heated up to processing temperature depending on the type of polymer used, for the polyether block amide, the temperature of the rolls should range between 95 0 C and 120°C, whereas for the modified Polyvinyl chloride with Butadien-acrylonitrile it should range between 100 0 C and 120°C.
  • the rolls rotate towards each other, with tiny alternate change of the rotational speed of each of the rolls, where the gel-like mass is transferred from one roll onto the other, which provides for a good homogenization of the mixture by transferring the mass from one roll onto the other.
  • a horizontal knife to cut and transfer the mass onto the rolls is installed in order to obtain a more homogenous mass and to accelerate the process or in the same can be achieved with the assistance of a worker who can cut the mass with a wooden knife and transfers it onto the rolls in order to obtain a homogenous uniform color mass which is an indication that the mass is well homogenized and that it is ready for extrusion.
  • a command is then given to the rolls to rotate backwards and by an abrupt cut the mass is cut off from the front roll falls onto the conveyer belt and it is separated from two-roll mill.
  • the rotation of the rolls lasts from 3 to 10 minutes depending on the polymer used and the characteristics of the gas generating mixture.
  • the obtained sheet of gas generating charge is then left to stay for several minutes on the conveyer belt until it cools down, after which it is transported onto a separate working table with horizontal wooden panel until it completely cools down at room temperature.
  • the ready-made sheets are rolled onto a cardboard pipe, a special protective sheet is then hauled on top of it and it is sealed in a package together with a dehumidifier and transported to a storage room where it is kept in a horizontal position on separate shelves.
  • Second Phase of the Gas Generating Production Process This phase of the gas generating production process is based on the possibility for processing the gas generating charge and the thermo-protective layer (the inhibitor) in a form of a sheet.
  • the desired geometry of the power charge can be achieved by means of different operations including all the accompanying elements and characteristics.
  • the working table with a horizontal wooden panel is given in Figure 14, marked as 1 , there are rails on both sides with a cart sliding on top of it, marked as 2, where three shafts are installed one behind the other.
  • a cylinder of 70-100 mm in diameter and 500 mm in length is installed on the front shaft onto which 5 mm long and 1 mm thick needles are pinned at a 10 mm distance from each other, marked as 3.
  • a cylinder of 150-200 mm in diameter and 500 mm in length with a heating system of up to 120 0 C is installed on the second shaft and falls freely on the working table, marked as 4.
  • the surface of the cylinder is Teflon. Rotating cutting knives for tailoring of the semi-product in the form of a sheet (gas generating mixture and inhibitor sheet) are installed on the back shaft marked as 5 on the drawing.
  • the Power Unit on the Figure15, generating the vacuum, pressure and heating of the thermal oil. Vacuum is generated by means of a two-stage vacuum pump, pressure is generated through an air compressor and pneumatic-hydro aggregate, whereas the heating of the thermal oil by separate units.
  • the processing module for entering and adjustment of the technological parameters during the final integration process is installed as part of this unit.
  • Tools for processing of the pre-form are shown on Figure 19, the body of the shaper, marked as 1, stings - marked as 2, fixtures, pressure plates - marked as 3, equipment for preparing the activation system and its installation, in the pre-form equipment for extraction of the ready-made gas generating charges (extraction from the tools), auxiliary tools and sets, working tables, transport carts for storing the ready-made gas generating charges, packaging equipment.
  • the necessary tools are arranged according to the specific order on the pre-form preparation table, until it is poured inside the body of the shaper.
  • the igniter is installed to close the body of the shaper with a pressure plate.
  • each segment is prepared separately, and after the completion of the first segment, the second and the third segment are being installed, subsequently.
  • a layer of delaying mixture is installed among the segments, in case when activation needs to be time-delayed (i.e. in cases when after the activation of the first segment, we need to have an idle phase) that has a several minutes slower combustion, after which the next element is being ignited.
  • Standard pyrotechnic mixtures are used as a delaying mixture, normally used when a delayed activation has to be achieved.
  • the process of air extraction is carried out - vacuuming at 20 tors, where the gradual heating of the tools to the given temperature, ranging up to 12O 0 C is performed depending on the type on the selected polymer.
  • the pressure lasts until the moment of stopping of the rotation. Then it rotates for one more minute, after which the cooling of the tools starts until the tools reach a temperature of 50 0 C. The operation of all fluids terminates and the tools are extracted from the final integration unit.
  • the shaper is extracted from the final integration unit and is placed on the table where the extraction of the gas generating charges is performed.
  • the gas generating charges are placed in separate slots packaged and transported to an auxiliary storage facility.
  • each of the components is measured separately. All chemical compounds, except the oxidizers are collected in one vessel, whereas the oxidizers are collected in a separate vessel which is sealed hermetically.
  • All the components, with exception of the oxidizers are mixed in a vertical mixer.
  • the mixed raw material is collected in a separate vessel and then poured into another vertical mixer where the oxidizers are deposited.
  • the stirred mixture is collected into a separate vessel which is then sealed hermetically.
  • the duration of the mixing process is defined according to the characteristics of the mixture and it is determined experimentally for each type of mixture separately.
  • the mixing process lasts from 15 to 60 minutes.
  • the prepared mixture is then transferred into vessels that can be sealed hermetically.
  • the production equipment is identical with the production equipment of the gas generating charges where a thermo set binder is applied.
  • An inhibitor sheet is integrated into the body of the shaper and dosed quantities of the gas generating mixture are added, the mixture is then pressed slightly, after which an electric igniter is installed to the upper surface, the body of the shaper is closed with pressure plate and placed inside the final integration machine.
  • the tools are heated at a processing temperature and closed when the pressing process begins.
  • the pressing lasts for one minute acquiring one millimeter thickness on the web of the gas generating charge.
  • the tools are removed and placed on the extraction table and the ready-made gas generating charge is extracted.

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Abstract

L'innovation intitulée « Charges générant un gaz pour des dispositifs de suppression d'incendie en aérosol et technologie de production correspondante » sert à éteindre des incendies de manière efficace dans des environnements conditionnellement fermés par l'application d'une substance composite solide, dont la combustion permet une formation rapide des aérosols qui sont émis dans la zone de protection comprenant la solution technologique, pour la procédure de production de charges adéquates de la substance à appliquer dans des dispositifs d'extinction d'incendie. La charge générant un gaz représente un mélange composite d'oxydants, de liants, de modificateurs de taux de combustion, et d'additifs technologiques, la géométrie finale de la charge pouvant contenir plusieurs types de mélanges de génération de gaz, avec un système d'activation de combustion de charge générant un gaz. La procédure technologique est constituée de deux phases. Pendant la première phase, un mélange générateur de gaz et une couche thermo-protectrice sont produits sous la forme d'une feuille pendant la première phase. La seconde phase consiste à produire des produits finaux, avec une géométrie complexe des charges générant le gaz, plusieurs mélanges avec différentes propriétés pouvant être incorporés, ce qui permet ainsi une combustion contrôlée et une émission du mélange gazeux en fonction des spécificités de l'application.
PCT/MK2009/000002 2009-05-26 2009-10-09 Charges générant un gaz pour des dispositifs de suppression d'incendie en aérosol et technologie de production correspondante WO2010137933A1 (fr)

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MK16309 2009-05-26
MKMK/P/2009/163 2009-05-26

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Cited By (6)

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WO2013023572A1 (fr) * 2011-08-16 2013-02-21 陕西坚瑞消防股份有限公司 Composition d'extinction d'incendie
WO2013023584A1 (fr) * 2011-08-16 2013-02-21 陕西坚瑞消防股份有限公司 Nouvelle composition d'extinction d'incendie
CN102949797A (zh) * 2011-08-16 2013-03-06 陕西坚瑞消防股份有限公司 一种新型灭火组合物
CN103111035A (zh) * 2013-01-25 2013-05-22 北京理工大学 一种bc干粉灭火剂
JP2021164664A (ja) * 2016-09-12 2021-10-14 ヤマトプロテック株式会社 自己消化性成形品
CN116870416A (zh) * 2023-05-24 2023-10-13 湖北及安盾消防科技有限公司 超薄片气溶胶灭火剂及其生产工艺

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WO2013023572A1 (fr) * 2011-08-16 2013-02-21 陕西坚瑞消防股份有限公司 Composition d'extinction d'incendie
WO2013023584A1 (fr) * 2011-08-16 2013-02-21 陕西坚瑞消防股份有限公司 Nouvelle composition d'extinction d'incendie
CN102949797A (zh) * 2011-08-16 2013-03-06 陕西坚瑞消防股份有限公司 一种新型灭火组合物
CN102949801A (zh) * 2011-08-16 2013-03-06 陕西坚瑞消防股份有限公司 一种新型灭火组合物
CN102949801B (zh) * 2011-08-16 2016-01-20 西安坚瑞安全应急设备有限责任公司 一种新型灭火组合物
CN103111035A (zh) * 2013-01-25 2013-05-22 北京理工大学 一种bc干粉灭火剂
JP2021164664A (ja) * 2016-09-12 2021-10-14 ヤマトプロテック株式会社 自己消化性成形品
CN116870416A (zh) * 2023-05-24 2023-10-13 湖北及安盾消防科技有限公司 超薄片气溶胶灭火剂及其生产工艺
CN116870416B (zh) * 2023-05-24 2024-05-14 湖北及安盾消防科技有限公司 超薄片气溶胶灭火剂及其生产工艺

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