EP3697703A1 - Unit for transporting, storing and/or handling a pyrotechnic product - Google Patents
Unit for transporting, storing and/or handling a pyrotechnic productInfo
- Publication number
- EP3697703A1 EP3697703A1 EP18807684.8A EP18807684A EP3697703A1 EP 3697703 A1 EP3697703 A1 EP 3697703A1 EP 18807684 A EP18807684 A EP 18807684A EP 3697703 A1 EP3697703 A1 EP 3697703A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- envelope
- container
- transport
- handling
- decompression device
- 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.)
- Withdrawn
Links
- 230000006837 decompression Effects 0.000 claims abstract description 43
- 238000003860 storage Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 12
- 238000009423 ventilation Methods 0.000 claims description 6
- 239000012943 hotmelt Substances 0.000 claims description 5
- 239000012212 insulator Substances 0.000 claims description 4
- 239000011490 mineral wool Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 35
- 230000002269 spontaneous effect Effects 0.000 abstract description 5
- 238000004880 explosion Methods 0.000 description 10
- 238000005474 detonation Methods 0.000 description 6
- 239000012634 fragment Substances 0.000 description 6
- 238000013467 fragmentation Methods 0.000 description 6
- 238000006062 fragmentation reaction Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- SPSSULHKWOKEEL-UHFFFAOYSA-N 2,4,6-trinitrotoluene Chemical compound CC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O SPSSULHKWOKEEL-UHFFFAOYSA-N 0.000 description 4
- 239000002360 explosive Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 239000000015 trinitrotoluene Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
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- 238000009415 formwork Methods 0.000 description 3
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- 239000010959 steel Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000002426 anti-panic effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
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- 238000003466 welding Methods 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
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- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
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- 231100001261 hazardous Toxicity 0.000 description 1
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- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
- F42B39/14—Explosion or fire protection arrangements on packages or ammunition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
- B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
- B65D90/325—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure due to explosion, e.g. inside the container
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/10—Locks or fastenings for special use for panic or emergency doors
- E05B65/104—Locks or fastenings for special use for panic or emergency doors actuated in response to heat, e.g. with fusible element, bimetal, memory shape or swelling material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
- F42B39/20—Packages or ammunition having valves for pressure-equalising; Packages or ammunition having plugs for pressure release, e.g. meltable ; Blow-out panels; Venting arrangements
Definitions
- the invention relates to the field of transport, storage and / or handling units for pyrotechnic products.
- the invention relates to containers of goods, also called “containers”, designed to transport, store and / or handle pyrotechnic products.
- container or “container”, also referred to as “transport, storage and / or handling unit”, a box of substantially parallelepipedal shape, of standardized size, generally but not exclusively. metal, and designed for the transport, storage and / or handling of objects, such as for example pyrotechnic articles.
- pyrotechnic article means any object comprising a pyrotechnic product.
- Pyrotechnic products also referred to as “explosive products” are generally composed of substances or mixtures of substances, the combustion of which is carried out without the participation of oxygen present in the air.
- pyrotechnic products may consist, partially or completely, of trinitrotoluene, more commonly known by the abbreviation "TNT”, or fireworks mixtures, commonly referred to as “black powder”.
- TNT trinitrotoluene
- fireworks mixtures commonly referred to as “black powder”.
- black powder Generally able to provide by their combustions signals, advantageously perceptible by the human eye, simple or made of different colors and / or compositions, such as lights or smoke.
- the combustion of said products can cause an explosion, that is to say a chemical reaction of said products accompanied by a significant release of energy in a very short time.
- explosion When the propagation speed of a combustion is lower than the speed of propagation of sound waves, commonly called sound velocity or velocity, is substantially three hundred and forty meters per second, said combustion is generally called “explosion”.
- detonation When it is greater than the speed of sound, said combustion is commonly called “detonation”. During a detonation, the speed of propagation of combustion can reach up to several thousand meters per second.
- a detonation is generally accompanied by a shock wave, that is to say a reversible disturbance of the local physical properties of the propagation medium.
- the speed of propagation can therefore reach tens of thousands of meters per second.
- the propagation of the shock wave is usually called explosion blast or "overpressure”.
- the pyrotechnic products are metastable, that is to say that they can react following a voluntary or involuntary external event, such as, for example, a mechanical shock, a friction, a discharge static electricity, and / or an increase in temperature.
- pyrotechnic products can be incorporated in pyrotechnic articles and participate in the operation of the latter.
- the said pyrotechnic products are thus contained in numerous articles from various fields, such as, for example, fireworks from the event, gun cartridges and / or shells from weapons, rockets and distress flames from maritime safety, airbags and / or ejection seats from automobiles and aeronautics, etc.
- Said articles then constitute an envelope enclosing pyrotechnic products.
- envelope will be understood to mean any pyrotechnic article as defined above, but also any object or enclosure that may contain or contain pyrotechnic products, such as by way of examples. non-limiting, a box, a container or a building.
- the release of energy caused during a combustion of said pyrotechnic products may cause a sudden increase in the pressure within said envelope.
- the latter under such pressure can yield, fracture, fragment and / or explode violently, then projecting around it many fragments and / or debris.
- debris projection can eventually damage nearby objects and / or elements, and in some cases even injure individuals in a surrounding area.
- the transportation, storage and handling of pyrotechnic products are generally subject to state regulations, to prevent accidents related to an unintentional ignition of the combustion of pyrotechnic products.
- pyrotechnic products When transporting them to their place of use for example, pyrotechnic products may undergo various events that can alter their stability and initiate spontaneous combustion.
- the temperature within an envelope containing pyrotechnic products can greatly increase after prolonged exposure to the sun or, on the contrary, greatly reduce at night, for example.
- the temperature within the envelope, and therefore the atmosphere around the pyrotechnic products can therefore vary greatly.
- Said pyrotechnic products thus stored can degrade or even begin, then causing a chain reaction, sometimes leading to the explosion of their packaging envelope.
- the containers can be transported by sea, rail, air and / or road, involving numerous loading and / or unloading of said containers within different means of transport.
- shocks and / or jolts produced on or within the containers can create a disturbance within said containers and thus initiate a combustion of the pyrotechnic products, damaging any packaging containing the products. pyrotechnics, or even said pyrotechnic products directly, thus preventing their use.
- the combustion and / or the alteration of pyrotechnic products can be a function of numerous factors, such as, by way of nonlimiting examples, of conditions related to the transport of such products, weather conditions and / or any other element that may affect the stability of those products.
- containers of goods have advantageously been arranged to transport and store pyrotechnic products.
- the floor, the walls, the ceiling and the doors of said containers, then constituting an envelope in which pyrotechnic products can be stored, are covered with thermal insulation, in particular to limit the temperature variations within said containers.
- Such containers cooperate in addition with sensors for preventing the risk of alteration and / or ignition of combustion, such as by way of non-limiting examples, hygrometric sensors and / or temperature sensors.
- said sensors can warn an operator in the vicinity, by triggering for example an audible alarm, and / or a remote operator, for example by sending him a message of alert.
- an audible alarm for example an audible alarm
- a remote operator for example by sending him a message of alert.
- such containers can cooperate with a system for evacuating static electricity via an earth connection.
- said containers are generally made hermetic.
- the walls, doors, floor and ceiling of said containers are then reinforced by metal walls and / or concrete formwork, in order to increase the strength of the structure of such containers and to avoid bursting and / or fragmentation of the envelope. Everything is thus implemented so that any explosions are contained within said containers.
- the invention makes it possible to meet all or some of the disadvantages raised by the known solutions.
- a unit for transporting, storing and / or handling pyrotechnic products makes it possible to preserve the integrity of said unit in case of eventual ignition of a combustion of pyrotechnic products present within it, thus avoiding the projection of fragments and / or debris, which can then damage objects and / or injure individuals in the vicinity of such a unit.
- a unit for transporting, storing and / or handling pyrotechnic products according to the invention in particular thanks to an advantageously structured envelope, furthermore makes it possible to contain and limit the propagation of any flames within such a unit. .
- a unit for transporting, storing and / or handling pyrotechnic products according to the invention is generally inexpensive in comparison with the units currently used, since such a unit according to the invention does not require the addition additional material to solidify the envelope and / or to ensure its integrity.
- the internal volume available for storing pyrotechnic products and the mass of said unit are advantageously optimized, the envelope of such a unit remaining substantially similar to, or even identical to, that of a transport, storage and / or transport unit. or handling conventional pyrotechnic products.
- a transport, storage and / or handling unit makes it possible to transport pyrotechnic products, or more generally explosive substances and articles, by sea, land, air and / or rail: - Being sensitive to an overpressure or more generally inducing a risk of explosion in mass, such as, for example, materials or objects containing Trinitrotoluene (TNT);
- TNT Trinitrotoluene
- the term “mass explosion” or “overpressure” means any explosion almost instantaneously affecting almost all of a load of pyrotechnic products, or more generally materials and explosive articles present in a unit for transporting, storing and / or handling pyrotechnic products.
- pyrotechnic products, or more generally such objects or explosive substances are, respectively and by way of non-limiting examples, defined in France by the Hazardous Goods 1.1, 1.3 and 1.4 Hazard Divisions.
- a unit for transporting, storing and / or handling pyrotechnic products comprising an envelope for enclosing said products and comprising a decompression device comprising a cover and cooperating with said envelope, said cover being arranged to lift during a surplus of energy within said envelope and thus create an opening in said envelope, the decompression device further comprising a lid locking means cooperating with said lid.
- the locking means of the decompression device of a transport, storage and / or handling unit according to the invention consists of a thermofusible material.
- the cover locking means can be arranged to yield to an internal temperature within the envelope of between seventy and four. twenty-five degrees Celsius.
- the decompression device of said transport unit, storage and / or handling may comprise a grid extending over the entirety of said opening.
- the latter may comprise a second decompression device comprising a second cover and cooperating with the envelope, said second cover being arranged to lift during a surplus of energy within said envelope and thus create a second opening in said envelope.
- the latter may include a ventilation device integrated within the envelope.
- a transport unit, storage and / or handling according to the invention can cooperate with a thermal insulation cooperating with all or part from his envelope.
- the thermal insulation may be mainly made of rock wool.
- FIG. 1 describes a preferred but non-limiting embodiment of a unit for transporting, storing and / or handling pyrotechnic products according to the invention
- FIGS. 2a and 2b describe first and second advantageous but nonlimiting exemplary embodiments of decompression devices of a unit for transporting, storing and / or handling pyrotechnic products in accordance with FIG. invention.
- the invention will be described through a transport, storage and handling unit, such as a
- the invention can not be limited to this single embodiment.
- the invention could be transposed to a sedentary storage unit.
- FIG. 1 illustrates an advantageous but nonlimiting exemplary embodiment of a unit for transporting, storing and / or handling pyrotechnic products according to the invention, such as by way of non-limiting example, a container of about twenty feet.
- Such a unit in the form of a container 20 is generally of substantially parallelepipedal or cubic shape.
- Said container 20 is composed of a lower structure 21 facing an upper structure 22, a rear structure 23b facing a front structure 24, said front structure 24 being generally composed of an opening with two leaves or vents allowing generally to access said container 20, and two lateral structures 23 facing each other and connecting the rear structure 23b to the front structure 24.
- Said structures 21, 22, 23, 23b and 24, also called “faces”, can be , for example, composed of one or more corrugated steel sheets, the respective ends of which are welded to a frame consisting of longitudinal members 26, corresponding to the edges of the parallelepiped, connected by welding or riveting to pieces of corners 25, called “corners ISO ", forming the vertices of said parallelepiped.
- corner pieces 25 generally consist respectively of cubes pierced in three places, so that the container 20 can be stowed on different supports, such as for example the ground or, during a transport, a second container .
- Said longitudinal members 26 and corner pieces are generally made of steel.
- the two leaves or vents of the front structure 24 are preferably articulated relative to the frame in a pivot connection, by means, for example, of one or more hinges.
- Each contour of said leaves or leaves may further comprise an airtight seal and water.
- the lower structure 21 is also composed of sleepers 27 cooperating with the frame, for example by welding or by any other means capable of materializing a mechanical connection type embedding.
- the inner surface of said lower structure 21 may further be covered with boards of wood and / or aluminum, to provide an internal floor adapted to the operation of the container 20.
- the sheet or more generally the materials constituting the envelope of the storage unit, transport and / or handling 20 according to the invention may have a thickness of one thousand two hundred microns ( 1.2 mm).
- the invention provides that such a container 20 may include a thermal insulation 50, said insulation 50 cooperating advantageously with the envelope of said container 20.
- a thermal insulation 50 may be applied to the inner wall of the casing, as shown in FIG. 1.
- said insulator 50 may be applied externally of said container 20, on all or part of the envelope, such as advantageously but not limitatively, on the upper structure 22, the rear and front structures 23b and 24 and / or the lateral structures 23.
- thermal insulation 50 may consist, by way of non-limiting example, of mineral wool, more particularly rockwool, such insulation being also known under the trade name "Decaroc", optionally in the form of one or more panels of forty millimeters thick, or any other insulating material and preferably but not limited to fire resistant.
- Such a thermal insulation may be preferentially but not limited to the composition, in particular, to withstand fires for a minimum period of sixty minutes.
- the thermal insulation 50 may further comprise or consist of an athermic paint applied to the outer wall of all or part of the casing of a container 20 according to the invention, in order, in particular, to reflect the infrared rays emitted by the sun on said envelope.
- the thermal insulation 50 of a container 20 according to the invention may comprise a heat-resistant cover manufactured and / or constituted, for example, from silicate, cooperating advantageously with all or part of the envelope of said container 20.
- the latter may also comprise a ventilation device 40 located, preferably but not limited to in the rear structure 23b, the front structure 24 and / or the side structures 23 of said container 20.
- a ventilation device 40 may, for example, comprise one or more rotatable mounted flaps or blades, independently or linked, on a chassis.
- a ventilation device 40 may advantageously be motorized, the rotation or more generally flaps or blades constituting said ventilation device 40 being actuated automatically.
- a container 20 according to the invention comprises a decompression device 10.
- a combustion of pyrotechnic products creates a release of energy, of which the action on the inner wall of the envelope of a conventional container, may cause the fracture or fragmentation of said envelope.
- Such a fracture or fragmentation can then cause the rupture of such an envelope and finally a projection of fragments or debris that can damage objects or elements, or even injure individuals, located near the container 20.
- the decompression device 10 of a container 20 according to the invention thus makes it possible to evacuate a surplus of energy produced by such combustion, thereby reducing the pressure exerted on the inner wall of the container 20, and thus preventing a fracturing thereof.
- FIGS. 2a and 2b and 3a and 3b respectively describe first and second advantageous but nonlimiting exemplary embodiments of decompression devices of a unit for transporting, storing and / or handling pyrotechnic products or a container. According to the invention.
- a container 20 As already mentioned, a container 20 according to the invention, also described as a unit for transporting, storing and / or handling pyrotechnic products, comprises an envelope for enclosing said products. Such a container 20 then comprises a decompression device 10 comprising a lid 13, said decompression device 10 cooperating advantageously with said envelope according to a suitable mechanical connection.
- the invention however, it can not be limited to this single example of arrangement. Indeed, the invention provides that the decompression device 10 and the cover 13 can form a single entity.
- the term "lid" any object or movable part for closing an opening of a device, thereby closing it. Because of its mobility and clever arrangement, said cover is arranged to lift when there is a surplus of energy within said envelope and thus to create an opening Op in said envelope, thus allowing the release of the energy, while reducing the risk of overpressure and explosion.
- such a decompression device 10 comprises a frame 11, cooperating for example with the structure upper 22 of said container 20 according to a suitable mechanical connection, such as by way of non-limiting example, a connection type embedding.
- a suitable mechanical connection such as by way of non-limiting example, a connection type embedding.
- the frame 11 of the decompression device 10 is directly integrated into the upper structure 22 of the envelope of said container 20, the envelope and the decompression device 10 thus forming a single physical entity.
- Said compression device 10 further comprises a lid 13, cooperating with said frame according to a suitable mechanical connection.
- an opening Op is advantageously made in the envelope of said container 20, the dimensions of said opening being advantageously and mutually adapted. to those of the outer wall of the frame 11.
- the cover 13 then allows to obscure said opening Op, when such a cover 13 is placed in front of the latter, such as in particular shown in Figure 2b.
- the lid 13 of the decompression device 10 may have any shape adapted to perform its function, preferably but not exclusively, a geometric shape, for example, advantageously, a square shape, in order to simplify the manufacture and the installation of said cover 13.
- the opening Op may have a shape similar to that presented by the cover, preferably but not limited to a geometric shape, for example, advantageously, a square shape.
- lid 13 and opening Op have substantially square shapes, they may, by way of nonlimiting examples, be characterized by dimensions whose lengths and widths are respectively substantially equal to one meter twenty (1.2 meters) .
- the invention can not, however, be limited to these only shapes and dimensions previously mentioned.
- the cover 13 and the opening Op could have any other geometry, such as for example polyhedral, elliptical etc.
- a lid 13 can cooperate with the frame 11 by means of a suitable mechanical connection.
- a mechanical connection may advantageously consist of a pivot connection, preferably materialized by one or more hinges 14.
- the invention can not, however, be limited to this type of connection and / or this single example only. structural arrangement: any means capable of providing a suitable mechanical connection could instead be used.
- the last decompression device 10 may comprise a locking means, in the form, for example, of a hook system 15 and / or padlock 16, as shown in Figure 2a, said hook system 15 and / or padlock 16 cooperating with the cover and for sealing said container 20.
- FIGS. 3a and 3b illustrate a second embodiment of the decompression device 10 of a container 20 according to the invention.
- the lid 13 of the decompression device cooperates directly with the envelope of the container 20 according to a suitable mechanical connection.
- the invention can not be limited to this single arrangement or type of configuration.
- the lid 13 of the decompression device 10 may be directly integrated into the upper structure 22 of the envelope of said container 20, the envelope and the decompression device 10 thus forming a single physical entity.
- the structural arrangements and the respective dimensions of the cover 13 and of the opening Op formed in the envelope are mutually arranged so that the cover 13 and the opening Op are then confused.
- the lid 13 of the decompression device 10 may consist of a zone of weakness 18 determined within the envelope of a container 20. according to the invention, said zone of weakness 18 being arranged to yield during a surplus of energy due to an overpressure following a combustion of pyrotechnic products within said envelope.
- a defined zone of weakness 18 may have any form adapted to provide the function, preferably but not exclusively, of geometrical shape, for example, advantageously, a square shape.
- a part of said envelope preferably but not exclusively a part of the upper structure 22 of said envelope, can then be perforated on at least three of the four sides of the envelope. such a square shape, during construction and before any use of a container 20 according to the invention.
- a part of said envelope preferably but not exclusively a part of the upper structure 22 of said envelope, may be subjected to a pre-treatment chemical by means of a suitable acidic solution, thus allowing the creation of a zone of weakness 18 defining the contour of said cover 13.
- the latter may consist of replacing the material constituting the envelope with a material of lesser resistance along the perimeter of the defined geometrical shape.
- the invention can not, however, be limited to the above-mentioned examples only. Any other mechanical or chemical method for making a cover 13 cooperate with the casing of a container 20 according to the invention could instead be considered.
- the last decompression device 10 may comprise a locking means.
- said locking means consists of a hot-melt material, that is to say a material which melts under the effect of heat, such as by way of non-limiting example tin.
- the ends of the lid 13 of such a decompression device can then be fixed to said envelope by means of such a hot melt material.
- the locking means can be arranged to yield to an inner temperature within the envelope between seventy and ninety degrees Celsius.
- the invention can not be limited to the only examples of structural arrangements previously mentioned.
- any other locking means capable of providing an identical or similar function, especially when the pyrotechnic products present within an envelope of a container 20 according to the invention can be used.
- a decompression device 10 of a container 20 according to the invention may comprise a grid 12 preferably covering the entire opening Op made in the envelope of said container 20, and this to prevent the projection of debris created from objects present in the envelope of said container 20, more particularly when a possible combustion of pyrotechnic products has been initiated unexpectedly within said envelope.
- the dimensions and the shape of such a grid 12 are advantageously arranged to cover the opening Op.
- such a grid 12 may consist of expanded metal, for example steel, or a set wire and / or structured cables such as a wire mesh.
- the grid 12 at its ends, can be welded or fixed by any other means, to the envelope of the container 20.
- the invention can not, however, be limited to the structural arrangement of such a grid or to means used to ensure cooperation between the grid 12 and the envelope of a container 20 according to the invention.
- the lid 13 of the decompression device of such a container 20 is intended to lift, or even to be partially or completely dissociated from the envelope of said container 20, thus creating an operture Op in said envelope .
- Such dissociation occurs especially when the pressure exerted on the internal walls of the container 20 envelope, such pressure being due to the release energy due to the combustion is substantially equal to or less than the threshold of fracturing or fragmentation of said envelope.
- a threshold of fracturing or fragmentation is more particularly determined by the strength of the material used for the manufacture of the casing of a container 20 according to the invention, but also by the quality of the mechanical links ensuring the cooperation of the constituent structures. the envelope, for example welds, thus allowing the envelope to form a single intact entity.
- the excess energy is thus evacuated and / or released by said opening Op made within the envelope, avoiding said envelope to deform and then allowing it to remain intact.
- the pressure exerted on the inner walls of the envelope of a container 20 according to the invention thus remains below a theoretical limit, beyond which a dislocation of said container 20 can intervene, thus avoiding any fragmentation of the envelope.
- Such a situation is particularly represented by the first and second embodiments of the decompression device of a container 20 according to FIGS. 2a and 3a.
- the lid 13 of the decompression device 10 is fixed, or even sealed, to a portion of the envelope of a container 20 according to the invention, by means of a locking means consisting mainly of a hot melt material.
- a locking means consisting mainly of a hot melt material.
- an increase in temperature precedes a blast, detonation or sudden increase in the internal pressure of the envelope.
- Such an increase in temperature results in a melting of all or part of the hot-melt material constituting the locking means, the latter yielding under the effect of the temperature and thus releasing the lid 13 of the decompression device 10.
- creating a zone of weakness 18 determined then allows to create a determined area of lower resistance to energy release during a possible combustion of pyrotechnic products within the envelope of a container 20 according to the invention, thus allowing the creation of an Op aperture practiced in one of the structures of the envelope.
- Such opening Op finally ensures the maintenance of the pressure exerted on the inner walls of the envelope of said container 20 below a limit or deformation threshold or potentially irreversible damage to said envelope.
- the invention further provides that a container 20 according to the invention may comprise additional accessory elements.
- a container 20 according to the invention may further comprise a second opening 30, positioned as advantageous examples. but not limiting, in the rear structure 23b or in the lateral structures.
- a second opening 30 can be arranged to allow the passage of a human being and, as such, have a substantially rectangular shape of respective dimensions of two meters ten high by eighty centimeters of width.
- said second opening may be obstructed by a door.
- such a door may consist of a door of the anti-panic type that is capable of being blown, that is to say that said door can open from the inside of the envelope of said container 20 to the outside by means of an anti-panic bar and / or open under specific conditions, such as for example under the effect of a pressure substantially greater than or equal to seventy Newtons.
- the excess energy can also and possibly by said second opening 30 if the decompression device is not sufficient to guarantee the integrity of the container 20, the door then acting as a second lid .
- the door such as the lid 13 previously described, can be arranged to lift or more generally open during a surplus of energy within said envelope and thus create a second opening in said container envelope 20.
- a door may also be arranged or adapted to be fire resistant for at least one hour (sixty minutes).
- a container 20 according to the invention may further comprise an earthing system, not shown in Figure 1, connecting by equipotential bonding all parts and conductive elements of said container 20, such only metal parts for example.
- the use of such a placing system The ground is particularly advantageous since it makes it possible to avoid any possible source of ignition which could lead to an unexpected combustion of pyrotechnic products present within the envelope of a container 20 according to the invention.
- an equipotential bonding may advantageously be connected to a system for evacuating electrical charges, such as, for example, a conductive metal stake driven into the ground when such a container 20 is placed on said ground.
- a container 20 according to the invention may comprise an antistatic system in the form of, for example, a conductive cord connecting said user to a system for discharging electrical charges via a terminal block.
- an antistatic system in the form of, for example, a conductive cord connecting said user to a system for discharging electrical charges via a terminal block.
- a container 20 according to the invention may comprise an extinguishing system adapted or arranged to extinguish any internal combustion that could take place spontaneously within the envelope of said container 20.
- the latter may further comprise one or more sensors of combustion prevention, such as by way of non-limiting example, a temperature sensor, which, when the temperature within said container reaches a determined threshold, for example thirty degrees, triggers an alarm to warn an operator of a risk of triggering an immediate spontaneous combustion.
- a temperature sensor which, when the temperature within said container reaches a determined threshold, for example thirty degrees, triggers an alarm to warn an operator of a risk of triggering an immediate spontaneous combustion.
- the invention can not, however, be limited to this type of sensor.
- the invention has been described when used in connection with a unit for transporting, storing and / or handling pyrotechnic products.
- the invention can not, however, be limited to the examples described above and could possibly be applied to a sedentary storage unit.
- a container or a unit for transporting, storing and / or handling pyrotechnic products may comprise and / or cooperate with a plurality of decompression devices distributed over different structures of the envelope, such as the lateral structures 23 for example, in order to distribute the discharge surface uniformly constituted by all of said decompression devices.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1759939A FR3072771B1 (en) | 2017-10-20 | 2017-10-20 | TRANSPORT, STORAGE AND/OR HANDLING UNIT FOR PYROTECHNICAL PRODUCT |
PCT/FR2018/052628 WO2019077291A1 (en) | 2017-10-20 | 2018-10-22 | Unit for transporting, storing and/or handling a pyrotechnic product |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3697703A1 true EP3697703A1 (en) | 2020-08-26 |
Family
ID=61913225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18807684.8A Withdrawn EP3697703A1 (en) | 2017-10-20 | 2018-10-22 | Unit for transporting, storing and/or handling a pyrotechnic product |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3697703A1 (en) |
FR (1) | FR3072771B1 (en) |
MA (1) | MA50407A (en) |
SG (1) | SG11202003406XA (en) |
WO (1) | WO2019077291A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114056778A (en) * | 2021-11-26 | 2022-02-18 | 中国人民解放军陆军工程大学 | Ammunition collection dress storage and transportation device based on information-based control |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3315351A1 (en) * | 1983-04-28 | 1984-10-31 | Leininger-Brandschutzelemente GmbH, 5000 Köln | Automatically released locking element for a fire door |
ATE408116T1 (en) * | 2004-11-19 | 2008-09-15 | Vid Aps | AN EXPLOSION-PROOF CONTAINER FOR THE STORAGE AND TRANSPORT OF ESPECIALLY PYROTECHNIC MATERIAL. |
-
2017
- 2017-10-20 FR FR1759939A patent/FR3072771B1/en not_active Expired - Fee Related
-
2018
- 2018-10-22 MA MA050407A patent/MA50407A/en unknown
- 2018-10-22 WO PCT/FR2018/052628 patent/WO2019077291A1/en unknown
- 2018-10-22 EP EP18807684.8A patent/EP3697703A1/en not_active Withdrawn
- 2018-10-22 SG SG11202003406XA patent/SG11202003406XA/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR3072771B1 (en) | 2021-12-24 |
SG11202003406XA (en) | 2020-05-28 |
WO2019077291A1 (en) | 2019-04-25 |
MA50407A (en) | 2020-08-26 |
FR3072771A1 (en) | 2019-04-26 |
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