WO2009153532A1 - Tete d'aspersion - Google Patents
Tete d'aspersion Download PDFInfo
- Publication number
- WO2009153532A1 WO2009153532A1 PCT/FR2009/051177 FR2009051177W WO2009153532A1 WO 2009153532 A1 WO2009153532 A1 WO 2009153532A1 FR 2009051177 W FR2009051177 W FR 2009051177W WO 2009153532 A1 WO2009153532 A1 WO 2009153532A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spray head
- tip
- pressure
- pipe
- transfer channel
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
- A62C37/10—Releasing means, e.g. electrically released
- A62C37/11—Releasing means, e.g. electrically released heat-sensitive
- A62C37/14—Releasing means, e.g. electrically released heat-sensitive with frangible vessels
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/62—Pipe-line systems dry, i.e. empty of extinguishing material when not in use
-
- 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
Definitions
- the invention relates to a sprinkler head, in particular for the diffusion of an extinguishing agent intended to fight against a fire or to prevent a fire, a fire protection device comprising such a sprinkler head, a method of controlling the fire, supplying, with an extinguishing agent, a pipe comprising such a sprinkler head and a method of opening a set of sprinkler heads of a fire protection device.
- sprinkler installations comprise a network of pipes, generally installed on the ceiling, in which sprinkler heads are inserted.
- These sprinkler heads comprise a heat-sensitive shutter, usually a fuse capable of melting in case of temperature rise or a bulb capable of bursting in the same situation.
- the pipes contain an extinguishing agent under pressure, for example water, foam or gas, and the shutter of a sprinkler head prevents any release of extinguishing agent.
- the fuse blows or the bulb bursts, which allows an immediate sprinkling of extinguishing agent near the source of heat.
- the sprinkler heads close to the heat source open.
- the extinguishing agent be immediately diffused over the entire area. zoned.
- a protection device comprising a detection network, called “pilot network”, able to detect a fire at any point in the area, and a sprinkler system, said “Deluge system”, comprising a set of permanently open sprinklers spread over the entire area to be protected.
- the sprinkler system is therefore at atmospheric pressure and contains no extinguishing agent. It is also said that he is "dry”.
- the detection network operates conventionally in the manner of a sprinkler installation as described above:
- a pipe network is kept under pressure and comprises a set of sprinkler heads, each head being provided with a sensitive shutter. in the heat.
- the rupture or fusion of a shutter causes a depressurization of the pipe network, which itself leads to an activation of the sprinkler system.
- the entire sprinkler system is fed with extinguishing agent, for example by opening a valve called “deluge valve” and / or by starting a feed pump.
- extinguishing agent can then be dispersed immediately over the entire area.
- a protection device of this type is bulky, expensive and requires regular maintenance, in particular to prevent leakage, sludging or corrosion of the detection network, or to unclog the sprinkler system, in particular following the nesting of some animals in the open sprinklers.
- the detection network may comprise a set of electronic sensors. Such sensors, however, are expensive to install and maintain, especially in areas where any sparking is prohibited.
- An object of the invention is to solve, at least partially, one or more of the aforementioned problems.
- the invention proposes a spray head, in particular for the diffusion of an extinguishing agent, comprising:
- the tip is thus held in position on the body in the closed position and can be moved, relative to the body, under the effect of the opening force, so as to clear the transfer channel.
- the spray head comprises means for holding the tip on the body which, by the simple application of the opening force, can be deactivated, even in the absence of fire.
- the spraying head can therefore be opened by the exercise of the only opening force on the nozzle, which makes it possible to diffuse an extinguishing agent in places where no abnormal increase in temperature has been detected by applying simply said opening force.
- the opening force is less than 1500 N, preferably less than 900 N, preferably less than 300 N, preferably less than 150 N, preferably less than 90 N, preferably less than 60 N, preferably less than 30 N, even less than 15 N, or even less than 3 N or 1 N.
- the opening force is between 15 N and 80 N.
- the "opening force” can result in particular from a pressure difference between the pressure in the transfer channel, called “internal pressure", and the pressure room. This pressure difference is referred to hereinafter as “differential opening pressure”.
- the opening differential pressure is less than 50 bar, preferably less than 30 bar, preferably less than 10 bar, preferably less than 5 bar, preferably less than 3 bar, preferably less than 2 bar, preferably less than 1 bar, or even less than 0.5 bar, or even less than 0.1 bar.
- the opening differential pressure is between 1 bar and 7 bar, or even between 1.5 bar and 6 bar.
- the spray head is intended to be inserted into a pipe, the shutter insulating from the outside the transfer channel (itself in communication with the interior of the pipeline). In the standby situation, the tip thus protects the pipe from the outside and prevent nesting in this pipe.
- the tip comprises a base traversed by an outlet channel and a shutter held on the base so as to close said outlet channel.
- All the holding systems conventionally used can be envisaged, and in particular the systems ensuring a rigid fixation of the shutter on the base, for example staples.
- the tip In case of fire, it is sufficient to exert on the tip an opening force tending to detach from the body, and in particular, for example, to increase the pressure in the pipe to open the spray head, for example by feeding it with extinguishing agent under pressure.
- the pipe can be maintained in depression. It may then be sufficient to increase its internal pressure, for example up to ambient pressure or beyond, to open the spray head.
- the opening of the spray head results from the balancing between the internal pressure and the ambient pressure, the opening force being for example constituted by the weight of the nozzle.
- the means for generating the opening force are not limited and may comprise, in particular, forces resulting from a differential pressure between the internal pressure and the ambient pressure, gravity forces, in particular the weight of the nozzle, forces exerted by elastic means, for example by a compressed spring, forces exerted by electromagnetic means or any combination of these means.
- a spray head according to the invention must allow a hold in the "closed” position, in particular for a standby situation, and, following the appearance of an opening force, a transition to a so-called “open” position. wherein the tip has at least partially cleared the transfer channel.
- the opening force thus corresponds to an action exerted on the tip and leading to a substantial clearance of the transfer channel by this tip.
- the tip and the body are shaped so that the passage from the closed position to the open position does not substantially damage the tip, and in particular the portion of the tip in contact with the body in the position closed.
- the generation of an opening force does not require electrical energy, at least near the spray head.
- the mechanical opening of the spray head is therefore simple, fast and preferably does not require any electrical energy. It is also very reliable.
- the opening force is preferably substantially axial.
- a suction head according to the invention also advantageously makes it possible to maintain a pressure difference between the inside and the outside of the pipe, where it is inserted, which can be particularly useful for detecting a beginning of fire.
- the spray head may comprise:
- an outlet channel comprising an inlet in fluid communication with the transfer channel, and an outlet opening towards the outside, and
- heat sensitive is meant that the shutter is able to clear the output channel under the effect of an increase in temperature or when exceeding a certain threshold temperature. This release of the output channel is conventionally called “activation” of the shutter. Activation of a shutter in the form of a fuse or bulb, for example, is its fusion or break.
- the tip can be released under the effect of said opening force, axial or otherwise, without an activation of the shutter, for example a rupture, bursting or melting of the shutter, be necessary.
- the shutter can be held on the tip, for example rigidly fixed on the tip, and therefore follow the tip when the latter releases the transfer channel.
- the outlet channel may in particular be formed in the mouthpiece.
- a pressure difference between the inside and the outside of the pipe can thus be maintained, in a standby situation, due to the closure of the transfer channel by the nozzle and the closing of the outlet channel by the 'shutter.
- This pressure difference is changed in case of fire, when the shutter releases from the output channel.
- This variation in pressure can advantageously serve as a detection signal of a beginning of fire.
- the spray head can thus perform both an extinguishing agent sprinkling function and a fire detection function.
- the shutter may in particular comprise a bulb capable of breaking under the effect of an increase in temperature, or a fuse capable of melting under the same conditions.
- the shutters conventionally used for sprinkler heads can be used.
- the shutter can close the output channel tightly or by allowing a leakage flow between the shutter and the output channel.
- manufacturing tolerances can be reduced.
- the spraying head is to serve as a fire detection means, as explained above, it will be necessary to provide means for maintaining a pressure difference between the inside and outside of the pipe in a situation of fire. Eve.
- the leak rate should however be limited.
- the passage between the shutter and its seat, through which the leak occurs should be less than 5%, less than 1%, or even less than 0.5% or less than 0.1% of the opening of the outlet channel at the seat of the shutter.
- the tip can seal the transfer channel.
- a leakage flow can be admitted between the body and the mouthpiece. It is considered that, preferably, the passage between the body and the tip should be less than 5%, less than 1%, or even less than 0.5% or less than 0.1% of the opening of the transfer channel. closed by the mouthpiece.
- the spray head may comprise means for retaining the nozzle in a closed position of the transfer channel, and in particular:
- clipping means and / or - at least one link; and or
- Elastic means including spring means adapted to push the tip against the body or elastic materials, in particular to form the parts of the tip and / or the body penetrating one into the other; and or
- the magnetic means may for example comprise one or more magnets fixed or incorporated in the tip or in the body and adapted to cooperate with a magnetic material of the body or the tip, respectively.
- the friction means may in particular be obtained by complementarity of form between the tip and the body.
- the tip may comprise one or more pins coming to be housed in force in housing complementary shape of the body.
- the friction means may also result from the insertion of a neck of the mouthpiece inside the body transfer channel.
- An adhesive may also be disposed between the tip and the body.
- These retaining means can be combined. They are chosen and, when they are adjustable, possibly adjusted according to the opening force or the desired opening differential pressure.
- these means must be chosen or adapted to maintain the nozzle in the closed position in the absence of fire and in the absence of the opening force, and to allow its release from the transfer channel under the effect of the only force of opening.
- the tip can be fixed to the body by means of a hinge, preferably arranged so that in case of opening, the tip can pivot to the "open" position, and preferably be maintained in this position, especially by gravity.
- the spray head may also be provided with elastic return means tending to return the nozzle to the closed position.
- elastic return means tending to return the nozzle to the closed position.
- the body comprises fixing means of the type conventionally used for fixing a sprinkler head on a pipe of a fire protection device.
- the body thus comprises a stirrup or a thread.
- this thread corresponds to that conventionally used to fix the sprinkler heads.
- the threading may comply with the NPT ("American National Tap Threads") standard, for example between NPT l / 2in and NTP lin.
- the invention relates to a sprinkler type sprinkler head, conventionally comprising:
- a tip closing said transfer channel and traversed by an outlet channel in fluid communication with the transfer channel and closed by a heat-sensitive shutter, the nozzle being able to be disengaged from the transfer channel, in particular by the exercise of a force of substantially axial opening.
- the tip and the body are not monobloc, but constitute two parts that can be separated or even separated from each other, especially thanks to an increase in the pressure in the transfer channel.
- the tip can clear the transfer channel without being damaged and without a specific tool.
- the invention also relates to a protection device between the fire comprising:
- At least one spray head according to the invention inserted into said pipe so that the transfer channel of said spray head is in fluid communication with the interior of said pipe.
- the pipe comprises at least one pipe shutter, integral with said sprinkler head or not, isolating from the outside the internal volume of the pipe.
- the pipe belongs to a pipe network comprising a plurality of pipe shutters, preferably identical and, more preferably, evenly distributed over the entire surface covered by said pipeline network.
- the pipe shutter is preferably shaped so as to put in fluid communication the inside and the outside of the pipe when the temperature surrounding this shutter exceeds a threshold temperature.
- the pipe shutter may in particular be a shutter of a spray head, arranged to close, in the standby situation, an outlet channel of the spray head, as described above.
- the internal pressure inside the pipe is preferably different from the ambient pressure, generally the atmospheric pressure. The communication of the interior of the pipe with the outside thus leads to a modification of the internal pressure. This variation in internal pressure can be detected and be associated with the presence of a fire center. Therefore, preferably, a fire protection device according to the invention comprises means for detecting a change in the internal pressure prevailing inside the pipe.
- a fire protection device also comprises means for raising the pressure upstream of the nozzle of the spray head so as to cause a differential pressure of opening and the release of the channel transfer by the tip.
- the internal pressure is lower than the ambient pressure and is used, only, to keep the nozzle in the closed position, the release, or "opening", of any shutter, for example the rupture a shutter bulb, enough to cause a differential opening pressure.
- the internal pressure is maintained higher than the ambient pressure in the standby situation.
- the difference between the pressure inside the pipe and the ambient pressure must then be less than the opening differential pressure.
- the internal pressure is increased, beyond the initial pressure in the standby situation, to a value allowing a clearance the nozzle and, more generally, all the tips of the sprinkler heads of the pipe, and in particular tips still provided with their shutter.
- the protective device according to the invention can therefore be advantageously used to renovate existing installations in which, in a standby situation, the pipe must be kept under overpressure. It suffices to replace the sprinkler heads with sprinkler heads according to the invention and to adapt the control members to be able to remove the detection means in place (pipe network or electronic means).
- the fire protection device comprises detection means able to detect an evolution of the pressure. internal inside the pipe and control means capable of ordering an injection of an extinguishing agent in the pipe in case of variation of this internal pressure, and in particular in case of increase of this internal pressure.
- the internal pressure is maintained higher or, preferably, lower than the ambient pressure and the detection means are able to detect an opening of a shutter.
- the spraying head comprises means for compensating, in a standby situation, leaks tending to modify the pressure difference between the internal pressure inside the pipe and the ambient pressure.
- the control means control, in the event of detection of a variation of the internal pressure likely to correspond to the presence of a fire, an opening of a valve deluge insulation, in situation of standby, the pipe and a source of extinguishing agent and / or the start of a feed pump for injecting into the pipe said extinguishing agent.
- the source of extinguishing agent is at a pressure sufficient to cause, after opening of said deluge valve, an injection of extinguishing agent into the pipe without the use of a feed pump.
- the pressure of the extinguishing agent injected is sufficient to generate a differential opening pressure at the level of the sprinkler head (s) inserted into the pipe.
- the pressure of the extinguishing agent leads into a substantially simultaneous opening of all the sprinkler heads, and thus to a diffusion of the extinguishing agent over the entire area covered by these sprinkler heads.
- the fire protection device comprises a source of extinguishing agent, preferably at a pressure sufficient to create a differential opening pressure at the level of the spray head.
- the fire protection device may also include means for injecting the extinguishing agent into the pipe at a pressure sufficient to create a differential opening pressure at the spray head, and in particular a valve deluge and / or a feed pump.
- the invention also relates to an installation, and in particular a room, a warehouse, or a storage tank, comprising a protective device according to the invention. This installation can in particular be a refinery or a hydrocarbon storage site.
- the invention also relates to a method for controlling the supply, with an extinguishing agent, of a pipe in which at least one spray head according to the invention is inserted, a method according to which said feed is initiated in the event of detection.
- an abnormal evolution of the internal pressure in the pipe in particular in case of abnormal increase of the internal pressure, and in particular in case of increase of the internal pressure up to the ambient pressure.
- the control method can in particular be applied for the opening of a deluge valve insulating the pipe of a source of extinguishing agent or for starting a pump supplying the pipeline with extinguishing agent .
- the invention finally relates to a method of opening a set of sprinkler heads of a fire protection device according to the invention, according to which a differential opening pressure is generated in said pipe, of preferably with the extinguishing agent, in case of detection of a fire.
- opening force is meant a force exerted on the nozzle such that it causes a clearance, at least partially, preferably complete, the transfer channel by displacement of the tip.
- differential pressure of opening is meant a pressure difference between the pressure upstream of the nozzle, that is to say in the transfer channel, and the ambient pressure, that is to say on the side of the tip opposite the transfer channel, able to create an opening force.
- This difference can be positive, zero, for example if the weight of the nozzle is sufficient to open the spray head, or negative, provided that its establishment leads to a sufficient opening force to open the spray head.
- FIG. 2 and 3 show schematically a median longitudinal section of a body and a tip of a spray head according to the invention, respectively;
- FIG. 4 and 5 show the sprinkler head of Figure Ic at the time of rupture of the shutter and at the moment of detachment of the tip, respectively; and - Figure 6 schematically shows a fire protection device according to the invention.
- FIG. 1 shows a spray head 10 assembled to a pipe 12 of a fire protection device.
- the spraying head 10, of axis X comprises a body 14 and a tip 16.
- the body 14 comprises an outer portion 18, substantially cylindrical with an axis X, extended by a neck 20, also cylindrical with an axis X and having a smaller diameter than the outer portion 18.
- the neck 20 externally has a thread 22 for attachment to a complementary thread of the pipe 12.
- the body 14 is traversed, along the axis X, by a transfer channel 30, substantially rectilinear opening on the upstream face 32 of the body 14 through an inlet opening 34 and, on the downstream face 36, by an opening of output 38.
- the transfer channel 30 has a cylindrical portion 40 extending from the inlet opening 34, and extended by a frustoconical portion 41 extending to the outlet opening 38.
- the nozzle 16 comprises a nozzle 42 consisting of a base 43 extended by clips 44, and a shutter 46.
- the base 43 is crossed by an outlet channel 48 which, by the closed position shown in Figure 1, is closed by the shutter 46.
- the clips 44 hold the shutter 46 in this position.
- the output channel 48 substantially rectilinear with axis X, opens on the upstream face 49 of the base 43 via an inlet 50 and on the downstream face 52 of the base 43 via an outlet 54.
- the shutter 46 is supported, preferably substantially sealed, on the edge
- the base 43 comprises, coaxially, a first base cylindrical portion 56, a frustoconical base portion 58 and a second base cylindrical portion 60.
- the first base cylindrical portion 56 and the frustoconical portion base 58 have complementary shapes to the cylindrical 40 and frustoconical portions 41 of the transfer channel 30, so that, in the closed position shown in FIG. 1, the first cylindrical base portion 56 and the frustoconical base portion 58 can be inserted in the transfer channel 30 bearing, substantially over their entire surface, with the cylindrical portion 40 and the frustoconical portion 41 of the transfer channel 30, respectively.
- An annular surface 62 extending substantially radially, provides the transition between the frustoconical base portion 58 and the second base cylindrical portion 60 of the tip 16.
- the tip 16 is shown in Figure 1 in a closed position in which it closes the transfer channel 30.
- the annular surface 62 is then in contact with the downstream face 36 of the body 14, extending itself substantially radially.
- the 56 of the tip 16 is a sealed contact, that is to say not allowing, in the closed position, a passage of fluid, including gas, between the outside and the transfer channel
- the shutter 46 has the shape of a substantially cylindrical bulb of axis X capable of breaking when it is brought to a temperature above a predetermined threshold temperature, for example greater than or equal to 50 0 C and less than 345 ° C, or even lower than 80 ° C. In standby ( Figure 1), the shutter is held by the clips 44 in a position in which it closes the outlet channel 48.
- the staples 44 whose number may be for example between 3 and 10, provide passages between them allowing the evacuation of extinguishing agent leaving the outlet channel 48 through the outlet 54.
- the tip 16 In the closed position shown in Figure 1 , the tip 16 can be held in position on the body 14 by friction, for example because the insertion of the first cylindrical base portion 56 of the tip 16 in the cylindrical portion 40 of the body 14 requires forcing.
- the holding in position can also be ensured, for example, by magnets 70 incorporated in the body 14 and cooperating with a mass, for example ferrous, of the base 43 of the tip 16.
- the end piece 16 could also be retained by links 72 able to break under the effect of an opening force, for example resulting from a differential opening pressure.
- the holding in position of the tip 16 may also result from an internal pressure P int within the transfer channel 30 less than the external pressure P atm .
- this difference in pressure alone is sufficient to keep the spray head closed.
- the spray head is mounted base down so that the weight of the latter is sufficient to make it fall when the internal pressure equals the ambient pressure.
- the spray head 10 may be used as part of a fire protection device 100.
- the device 100 shown in FIG. 6 comprises a pipe network 110 fixed for example on the ceiling of a building to protect.
- the pipe network 110 comprises a main pipe 111 on which are connected secondary pipes 112 provided with spray heads 10 such as that just described.
- the shape of the pipe network 110 and the arrangement of the spray heads 10 are determined so that the spray heads 10 are distributed substantially uniformly over the entire surface to be protected.
- the upstream end of the main line 111 is connected to a source of extinguishing agent, for example a tank 114, via a feed pump 116 and / or a deluge valve 118.
- the extinguishing agent may be a liquid, a powder, a foam, or a gas, for example.
- a vacuum pump 120 may be provided to create or maintain a vacuum within the piping network 110 in the standby situation.
- a sensor 122 is also provided to detect any changes in the pressure in the pipe network 110.
- a control unit 124 may also be provided to control the vacuum pump 120 when the sensor 122 detects a progressive decrease in the pressure inside the pipe network 110, this pressure decrease corresponding to a leak, in particular to the interface between the tip 16 and the body 14 or at the support of the shutter 46 on the edge 55 of the outlet channel 48.
- the control unit 124 can also, when the sensor 122 signifies a sudden decrease in the pressure inside the pipe network 110, control the opening of the deluge valve 118 and the start of the pump 116.
- the pipe network 110 is kept dry in vacuum with respect to the environment by means of the vacuum pump 120.
- the control unit 124 controls the vacuum pump according to the information received from the sensor 122 to maintain the depression in the pipe network 110 to a value determined, in particular to take into account leaks at the sprinkler heads, for example between the nozzle and the body of a spray head, or between the shutter and its seat, or leaks upstream, by example at the level of the deluge valve 118.
- This regulation of the vacuum in the pipe network 110 advantageously allows to tolerate leakage rates, and thus limits the constraints to impose for the various components of the protection device.
- This depression in the pipe network also makes it possible to press the tip 16 onto the body 14 of a spray head as shown in FIG.
- additional restraining means for example magnets, clips or links, is not essential, which facilitates the manufacture of sprinkler heads and therefore limits their cost.
- the tip 16 in position on the body 14 can also be improved by exploiting the forces of gravity, for example by arranging the tip in a position such that its weight contributes to pressing it against the body 14. For safety, it is however preferable that the weight of the tip contributes to its separation from the body 14, as in Figure Ic.
- the tip 16 and / or the body 14 elastic materials so that, in the closed position, the body 14 maintains the tip 16 by elastic pressure resulting from the compression of these materials.
- the tip 16 and / or the body 14 elastic materials so that, in the closed position, the body 14 maintains the tip 16 by elastic pressure resulting from the compression of these materials.
- the spray head 10 is preferably arranged tip downwards, and preferably the shutter has a mass such that the depression inside the pipe network 110 can not maintain, or maintain a fragment against the output channel without the aid of the staples 44.
- the shutter 46 is held in the closed position of the outlet channel 48 by the single depression prevailing in the pipe network 110. This mode realization, however, leads to difficulties of installation and it is therefore preferable that the means, such as the clips 44, are provided in order to keep the shutter 46 in the closed position, even in the absence of any depression in the pipe network 110.
- the sudden increase in internal pressure will also be detected by the control unit 124, which will control the opening of the deluge valve 118 and the start of the feed pump 116.
- the opening of the valve deluge 118 can also be obtained mechanically under the effect of the increase of the internal pressure, for example by activation of a pneumatic or hydraulic pilot. It may also result from the activation of a controlled solenoid valve system as a function of the pressure measured by the sensor 122.
- a sprinkler head according to the invention makes it possible to manufacture fire protection devices that are particularly reliable and inexpensive to install and maintain.
- a spray head according to the invention can not only participate in the detection of a fire, but also allow spraying even when the spray head has not undergone an increase in heat. It is therefore not necessary, as in the prior art to double the network of pipes or install a multitude of electronic sensors. In addition, in a standby situation, the network of pipes can remain dry, which avoids the risks of corrosion, sludging and obstruction.
- the sprinkler heads can also operate without any power supply, which allows their implementation, in particular in ATEX type zones.
- the pipe network remains closed, which in particular avoids any risk of obstruction by nesting animals.
- the protective device could be overpressure, the pressure drop resulting from the rupture of a shutter serving as a detection signal of a fire.
- a protection device is not necessarily configured to react in case of fire.
- it can be configured to react as soon as an abnormal increase in temperature is detected, even in the absence of flames.
- the device thus contributes to preventing a fire, and therefore to
- the spray head may be a head designed for sprinkling drops of water or water streams.
- the spray head can also be a head capable of projecting a water mist.
- the current "micro sprinklers" can in particular be adapted to form sprinkler heads according to the invention.
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/000,273 US20110186310A1 (en) | 2008-06-20 | 2009-06-19 | Spray head |
AU2009261801A AU2009261801A1 (en) | 2008-06-20 | 2009-06-19 | Spray head |
EP09766094.8A EP2300104B1 (fr) | 2008-06-20 | 2009-06-19 | Tete d'aspersion |
CA2728627A CA2728627A1 (fr) | 2008-06-20 | 2009-06-19 | Tete d'aspersion |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0854095 | 2008-06-20 | ||
FR0854095A FR2932690B1 (fr) | 2008-06-20 | 2008-06-20 | Tete d'aspersion. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009153532A1 true WO2009153532A1 (fr) | 2009-12-23 |
Family
ID=40263548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2009/051177 WO2009153532A1 (fr) | 2008-06-20 | 2009-06-19 | Tete d'aspersion |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110186310A1 (fr) |
EP (1) | EP2300104B1 (fr) |
AU (1) | AU2009261801A1 (fr) |
CA (1) | CA2728627A1 (fr) |
FR (1) | FR2932690B1 (fr) |
WO (1) | WO2009153532A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2623162A1 (fr) | 2012-02-03 | 2013-08-07 | Eitl | Tete d'aspersion |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011052330A1 (de) * | 2011-08-01 | 2013-02-07 | Edgar Roberto Solis Perez | Löschanlage mit vereinfachtem Aufbau |
EP3223919B1 (fr) | 2014-11-27 | 2020-01-01 | Marioff Corporation OY | Sprinkleur de lutte contre l'incendie déployé automatiquement |
JP6605912B2 (ja) * | 2015-10-19 | 2019-11-13 | ホーチキ株式会社 | スプリンクラーヘッド取付構造 |
CA2973026C (fr) * | 2017-03-09 | 2018-12-04 | Systemes Fireflex Inc. | Regulateur de pression destine a un systeme de protection incendie maintenu sous vide, et methode associee |
CN110448830A (zh) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | 石化罐区固定式三相泡沫发生和喷射装置及方法 |
Citations (4)
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US4619327A (en) * | 1985-01-07 | 1986-10-28 | Central Sprinkler Corp. | Sprinkler head |
US5927406A (en) * | 1994-09-13 | 1999-07-27 | Kadoche; Maurice | Fire protection installation involving a normally dry network of sprinklers |
DE20120671U1 (de) * | 2001-12-21 | 2002-03-14 | Total Feuerschutz Gmbh | Feuerlöschanlage |
US20030000712A1 (en) * | 2001-06-29 | 2003-01-02 | Franson Scott T. | Vacuum dry sprinkler system containing a sprinkler head with expulsion assembly |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4011109A (en) * | 1975-11-10 | 1977-03-08 | Monsanto Company | Method for producing steel filaments |
WO1999039774A1 (fr) * | 1998-02-04 | 1999-08-12 | Yokoi Incorporated | Tete d'extincteur automatique |
-
2008
- 2008-06-20 FR FR0854095A patent/FR2932690B1/fr not_active Expired - Fee Related
-
2009
- 2009-06-19 US US13/000,273 patent/US20110186310A1/en not_active Abandoned
- 2009-06-19 WO PCT/FR2009/051177 patent/WO2009153532A1/fr active Application Filing
- 2009-06-19 EP EP09766094.8A patent/EP2300104B1/fr not_active Not-in-force
- 2009-06-19 CA CA2728627A patent/CA2728627A1/fr not_active Abandoned
- 2009-06-19 AU AU2009261801A patent/AU2009261801A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4619327A (en) * | 1985-01-07 | 1986-10-28 | Central Sprinkler Corp. | Sprinkler head |
US5927406A (en) * | 1994-09-13 | 1999-07-27 | Kadoche; Maurice | Fire protection installation involving a normally dry network of sprinklers |
US20030000712A1 (en) * | 2001-06-29 | 2003-01-02 | Franson Scott T. | Vacuum dry sprinkler system containing a sprinkler head with expulsion assembly |
DE20120671U1 (de) * | 2001-12-21 | 2002-03-14 | Total Feuerschutz Gmbh | Feuerlöschanlage |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2623162A1 (fr) | 2012-02-03 | 2013-08-07 | Eitl | Tete d'aspersion |
Also Published As
Publication number | Publication date |
---|---|
EP2300104B1 (fr) | 2013-09-04 |
FR2932690A1 (fr) | 2009-12-25 |
FR2932690B1 (fr) | 2011-03-18 |
CA2728627A1 (fr) | 2009-12-23 |
AU2009261801A1 (en) | 2009-12-23 |
EP2300104A1 (fr) | 2011-03-30 |
US20110186310A1 (en) | 2011-08-04 |
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