Method and device for two-stage system to combat hazard

FIELD: fire-fighting equipment.

SUBSTANCE: invention relates to fire-fighting equipment. Methods and device for two-stage hazard suppression system in accordance with various aspects of the present invention comprises a housing accommodating the first substance for combating against the hazard, which is made with the ability to be placed near the source of hazard, and a container accommodating the second substance for combating against the hazard placed at a distance from the source of hazard. The housing may be made with the ability to release the first substance for combating against the hazard in response to damage to the housing and/or the source of hazard. The container can be made with the ability of release of the second substance for combating against the hazard, controlled by the time, in response to release of the first substance for combating against the hazard. Alternatively, the sensor can be used to initiate the release of the second substance for combating against the hazard in response to the initiating event, independent from the initial damage to the housing and/or the source of hazard.

EFFECT: increase in operating speed of fire-fighting system is provided.

20 cl, 5 dwg

 

Art

Vehicles used in ground and air operations, may be exposed to many scenarios of actions leading to a flash of flame on the surface or inside the vehicle. For example, military aircraft, conducting the operation in a densely populated urban area, may be subjected to numerous types of attacks, such as small arms fire, anti-aircraft artillery and shells class surface-to-air. Each of these ballistic funds, which has high energy, can disrupt such compartments of the vehicle, the fuel tank, causing a fire or explosion.

Various methods and devices used to reduce the likelihood of ignition, or other hazardous events arising from violations of the containment system. For example, powder panels were used as non-electric passive systems for protection against high-energy ballistic capabilities. In one embodiment, these panels are designed to protect fuel tanks and their associated fuel-free compartments caused from ballistic means of the flame due to the possibility of suppression flame in place of ballistic impact. Such systems are effective in preventing the occurrence of the MW�tion of ignition, but much less effective against latent or slowly growing flame, which can also occur due to the original ballistic damage.

Disclosure of the INVENTION

Methods and apparatus for two-stage system of suppression of danger according to various aspects of the present invention include a housing containing a first substance to combat the danger, which is made with possibility of its location near the source of danger, and the container containing the second substance to combat the danger that is located at a distance from the source of danger. The housing may be configured to release the first substance to combat the danger in case of damage to the shell and/or a source of danger. The capacity can be configured to be controlled by time of the release of the second substance to combat the danger in response to the release of the first substances to deal with danger. Alternatively, you can use the sensor to trigger the release of the second substance to combat the danger in response to a triggering event independent of the initial damage to the shell and/or a source of danger.

BRIEF description of the DRAWINGS

A more complete understanding of the present invention can be achieved when contacting under�t hese the description and the claims, in conjunction with the following illustrative drawings. The following drawings similar reference position refer to similar elements and steps throughout the drawings.

Fig.1 - a schematically shows an exemplary variant of passive suppression system flame.

Fig.2 is schematically illustrates a view in cross section of damage to the source of danger and systems to combat the danger.

Fig.3 is schematically illustrates an exemplary two-stage variant of the system is arranged to release the second flame arrester in the space surrounding the body.

Fig.4 is schematically illustrates a view in an enlarged scale two-stage system, schematically shown in Fig.3; and

Fig.A 5 schematically illustrates an exemplary two-stage variant of the system is arranged to release the second flame arrester in case.

Elements and stages are shown in the drawings for simplicity and clarity and are not necessarily aligned with any particular sequence. For example, the drawings show the stages that can be carried out simultaneously or in different order, in order to promote a better understanding of embodiments of the present invention.

DETAILED DESCRIPTION of ILLUSTRATIVE embodiments of

The present invented�e can be described here from the point of view of the components of the functional blocks and various processing steps. Such functional blocks can be created from any number of hardware components configured to implement the designated functions and achieve the various results. For example, the present invention can use a variety of chassis, panels, fittings, sensors, etc., which can perform various functions. In addition, the present invention can be applied in practice in combination with any number of dangerous vessels or vehicles, such as trucks, aircraft, fixed wing and helicopter, and the system described is merely one illustrative application of the invention. In addition, the present invention can use any conventional methods for the suppression of fire or other hazardous conditions, determine the environmental conditions, etc.

Methods and apparatus for two-stage system of suppression of danger according to various aspects of the present invention may operate in conjunction with any suitable mobile and/or stationary device. Various typical embodiments of the present invention can be applied in any system of suppression flame. Some typical embodiments of the invention may include, for example, the fuel tank of an aircraft, pipes�wire to the fuel supply or storage tank for fuel.

With reference to Fig.1, in one embodiment, methods and apparatus for two-stage system 100 suppression of danger may comprise the first system 102 to counter the danger, is arranged to accommodate a first substance 104 to combat the danger. The first system 102 to combat the danger may at least partially close, to surround and/or be in the immediate vicinity of the source 106 of danger. The first system 102 to combat the danger may be associated with the second system 108 to combat the danger, containing the second substance to combat the danger, through distribution system 110.

The source 106 of danger contains hazardous or potentially hazardous substance, such as fuel, chemicals, acids, etc., the Source 106 may include any suitable device that contains a hazardous substance, such as fuel tank, distribution line, the container or delivery system, such as a pump. The source 106 of danger can also be located in any environment, in any location, or may be part of a larger system and should not be limited to a fixed position. For example, in one embodiment, the source 106 of danger includes the fuel tank, located in a moving vehicle such as a truck. In the Dr�GOM version the source 106 may include a conduit for supplying fuel located between the fuel tank of an aircraft engine and an aircraft.

The source 106 may be any suitable material, such as plastic, metal, elastomer, polymer or a suitable composite material, and may be reinforced or not reinforced with additional material, such as armored plating. The source 106 may also be performed in any suitable form and be of any size or volume, depending on a particular application. For example, the source 106 may include a conduit for supplying fuel passing through and around various structures. In another embodiment, the source 106 may include a fuel tank, appropriately configured to meet the specific volume of an irregular shape. In yet another embodiment, the source 106 may be sealed volume design of larger size, such as wing fuel tank.

The first system 102 to combat the danger may be located near the source 106 to the danger and made with the possibility of reducing the immediate danger of a release of hazardous substances as a result of a random event, such as damage to the fuel tank in�somaenergetics ballistic means. The first system 102 to combat the danger may include any suitable system of suppression of dangerous events that occur essentially simultaneously with the release of hazardous substances, such as a fire or explosion resulting from high-energy injuries of the fuel tank. For example, as shown in Fig.2, in one embodiment, the first system 102 to combat the danger may include essentially hollow multi-walled enclosure, such as a powder panel 202, accordingly made for closing at least part of the surface of the source 106 of danger, and is arranged to accommodate the first arrester 204. Powder panel 202 can be appropriately made for the release of the first arrester 204 under the influence of damage to the source 106 of danger and powder panel 202 of the projectile, following the trajectory of 210.

With reference to Fig.3-5 shows that in the second typical embodiment, the first system 102 to combat the danger may include a housing 302, configured to accommodate the first arrester 204, as shown in Fig.2, and may be appropriately arranged to essentially matching multidimensional surface and its wrap, such as the surface of the tubing 306 for supplying fuel or a fuel pump (not shown). Furthermore, the housing 302 may be configured to release at least part of the first arrester 204 in terms of damage to the housing 302, such as damage, which may arise from bullets, shrapnel, or other projectile that can damage the pipeline for fuel supply 306 and cause a fire or explosion, as illustrated in Fig.2. The housing 302 may be configured to release the first suppressor so that it fills the area or volume much larger than the size of the damage, such as fuel compartment or other compartment 304. Alternatively, the housing 302 may be suitably configured to release the first arrester 204 in area or volume is essentially local to the injury site.

The first system 102 to combat the danger may also contain any suitable substance, applicable in the case of punching, blasting or otherwise violating the structural integrity of the first system 102 to combat the danger, either locally or overall, in terms of damage. For example, in one embodiment, the material in the first system 102 to combat the danger may contain hard plastic that is properly made with the possibility of destruction in the area surrounding the damage, while starnacht first system 102 to combat the danger remains essentially intact. In the second embodiment, the first system 102 to combat the danger may include a housing defining an internal volume, wherein the housing consists of several panels which are made of different materials and suitably designed for a specific purpose, such as more or less total damage than damage to other panels. In the third embodiment, the first system 102 to combat the danger may contain in whole or in part acrylic material, appropriately designed for total destruction in case of an accidental event, in force in any part of the acrylic material.

In addition, the first system 102 to combat the danger can be configured to accommodate a first substance 104 to combat the risk at a higher pressure compared to the environment and/or a source 106 of danger. Alternatively, the first system 102 to combat the danger can be constructed to withstand the increased internal pressure to several hundred pounds per square inch. For example, in one embodiment, the first system 102 to combat the danger can be configured to store a first substance 104 to combat the risk at a pressure above about thirteen or seventeen psi but less than about 50 psi. In another embodiment, the first si�subject 102 to combat the danger can be appropriately performed essentially sealed at atmospheric pressure at the earth's surface, but used in conditions of lower pressure, such as the conditions in non-pressurized compartment of an aircraft operating at an altitude of more than about 15,000 feet.

In the second system 108 to combat the danger of using the second substance to combat the danger, to reduce the chance of developing a dangerous situation after the release of the first substance 104 to combat the danger. The second system 108 to combat the danger may include any suitable system for controlled release of means to combat the danger. For example, the second system 108 to combat the danger can react to the state change of the first system 102 to combat hazardous and may be appropriately arranged to release the second substance to combat the danger within a certain period of time in response to the status change. Alternatively, the second system 108 to combat the danger can be configured to release the second substance to combat the danger in response to a signal issued by the sensor.

With reference to Fig.1, in one embodiment, the second system 108 to combat the danger may include capacity 116, containing the second substance to combat the danger. The receptacle 116 may be connected to the first system 102 DL� against the risk of distribution system 110, containing the tube 114 and/or the sensor 112.

The container 116 contains the second substance to combat the danger, and may include any suitable system for holding the second substance to combat the hazard, such as a sealed pressure tank, flexible tank, pipeline, etc. the Receptacle 116 may be appropriately configured to accommodate the weight or volume of any suitable substance to combat the danger, such as liquid, gas or solid. The receptacle 116 may also include any material suitable for this application, such as metal, plastic or composite material. For example, as shown in Fig.3, the receptacle 116 may include a sealed pneumatic cylinder 316.

The receptacle 116 may be located within the first system 102 to fight the danger or is located at a distance from the first system 102 to combat the danger. For example, as shown in Fig.3, a sealed pneumatic cylinder 316 may be located in the area of a single compartment design, but separated from the housing 302 by a predetermined distance to reduce the probability of simultaneous damage and the housing 302 and sealed pneumatic cylinder 316. In another embodiment, the receptacle 116 may be separated from the first system 102 to combat the danger of partition, may be in a separate�Bay or be resistant to damage the cover.

The receptacle 116 may also be appropriately configured to accommodate a second substance to combat the danger under pressure. For example, in one embodiment, the receptacle 116 may accommodate a second substance to combat the danger under pressure up to about 360 pounds per square inch. In the second embodiment, the receptacle 116 may be configured to accommodate a second substance to combat the danger under pressure to about 800-850 psi. In the third embodiment, the receptacle 116 may be configured to accommodate a second substance to combat the danger under pressure essentially equal to the pressure in the first system 102 to combat the danger.

The receptacle 116 may also include a valve connecting the distribution system 110 with the second substance to fight the danger in the vessel 116. The valve may also regulate the release or rate of release of the second substance to combat the danger. The valve may comprise any suitable system for maintaining under pressure the volume of a substance to combat the danger and for the release of such amount, if necessary. For example, the valve may have a hermetic seal between the second substance to combat the danger and the tube 114 distribution system 110. The valve can respond to the signal sensor 112, and may be suitable for�appropriate way is made with the possibility of destruction, open or otherwise remove a water tight seal in response to the signal sensor 112. Once the hermetic seal is broken, the entire amount of the second substance to combat the danger may be released to the distribution system 110.

In another embodiment, the valve may be suitably configured to control the release rate of the second substance to combat the danger. For example, can occur selectively initiated by opening a valve, for example, as in the case of a ball or check valve, made with the possibility of release of substance to deal with the risks associated with a given mass flow rate. The rate of release may depend on specific applications or locations and may be associated with pressure in the tank 116, compared to the ambient pressure in the first system fight the danger or the environment.

The valve can also be configured to release the second substance to combat the danger during a specific period of time. For example, the valve can be calibrated so that the full release of the second substance to combat the danger occurs over a period of time, amounting to about sixty seconds. Alternatively, the valve may be appropriately configured to be released�I second substances to deal with the risk over a relatively short period of time, such as 0.1 seconds. The valve can also be configured to maintain a constant level of the second substance to combat the danger in this volume on the basis of the signals of the sensor 112.

Distribution system 110 delivers the second substance to combat the danger after the second system 108 to combat the danger was powered. The distribution system 110 may include any suitable system for delivering substances to deal with the hazard, such as a pneumatic tube, tube, tubing, perforated hose or sprayer. The distribution system 110 may also be configured to actuate the second system 108 to combat the danger in response to a pre-defined event, such as damage to the first system 102 to fight the danger or responding to the fire.

The distribution system 110 may comprise a sensor 112, configured to determine a pre-defined events and subsequent actuation of the second system 108 to combat the danger and/or for issuing the activation signal to the second system 108 to combat the danger. The sensor 112 may include any suitable system for determining and transmitting signals, such as infrared detector, shock sensor, thermocouple, pressure sensor�moving or heat-sensitive element.

In addition, the distribution system 110 may be implemented with a device for supplying substances to deal with the hazard, such as a tube 114. The tube 114 may be configured to provide a conducting passage for the second substance to combat the danger from the second system 108 to combat the danger in the area where the second substance to combat the danger. For example, as shown in Fig.5, in one embodiment, the tube 114 can provide a conductive passage in sealed pneumatic cylinder 316 in the internal volume of the housing 302 so that the second substance to combat the danger was supplied to the damaged region of the housing 302 for an extended period of time after the original release of the first substances to deal with danger. As shown in Fig.4, in the second embodiment, the tube 114 can be directed into the space surrounding the casing 302 to the second substance to combat the danger was submitted to the environment and not only to the damaged area of the housing 302.

The tube 114 may include any suitable material, such as metal, plastic or polymer, and can be appropriately adapted to withstand elevated temperatures associated with a fire or exposure to caustic chemicals. The tube 114 may also contain material that is specially WH�Nena with the ability to withstand high temperature. The tube 114 may also be under pressure or be made so as to withstand pressures up to 800 psi. For example, in one embodiment, the tube 114 may include a plastic tube under pressure, wherein the plastic is made with the possibility of destruction or other damage in response to applied heat load, such as a flame.

The tube 114 may also be configured to act as a sensor 112. For example, in one embodiment the destruction of the tube 114 under pressure may trigger the release of the valve of the second substance to combat the danger. Alternatively, the tube 114 can be directly connected with the second substance to combat dangerous and may be under pressure equivalent to the pressure of the second substance to combat the danger, so the destruction of the tube 114 causes the release of the second substance to combat the danger.

The tube 114 may also respond to the pressure drop in the first system 102 to combat the danger. For example, as shown in Fig.5, the pressurized tube 114 may be in communication with the internal volume of the housing 302, so that the pressure inside the tube 114 is equal to the pressure in the internal volume of the housing 302. Therefore, if the housing 302 has been damaged and this has resulted in a drop in pressure within the housing 302, the tube 114 will react to the loss �of Alenia and either to actuate the valve, or otherwise affect the release of the second substance to combat the danger.

In yet another embodiment, a sealed and pressurized, the tube 114 can be directed to one or more surfaces of the first system 102 to combat the danger thus, to achieve damage to the tube 114 essentially simultaneously with the first system 102 to combat the danger. In the damaged tube 114 then may be a pressure drop, causing the signal to actuate the valve and/or the second system 108 to combat the danger.

Two-stage system 100 suppression of danger may contain one or more substances to combat the danger, such as flame retardants, neutralizing agents or gases. For example, one substance to combat the danger can be flash suppressor, appropriately designed for random events, such as explosions or other rapid fire, and the second substance to combat the danger can be the flame arrester suitable manner intended to suppress the hidden flame or other slow growing flame. In one embodiment, the first substance 104 to combat the danger may contain conventional dry chemical extinguisher such as dry powder flame retardant means ABC, BC or D. In another embodiment the first substance 104 to combat OpenStorage to hold the extinguisher with the inclusion of additional chemicals or compounds such as different shapes or combinations of lithium, sodium, potassium, chloride, graphite, acetylene, carbon oxides and magnetite.

Substance to combat the danger can also be adapted to perform more than one way of dealing with danger. For example, a substance to combat the danger can contain multiple elements or compounds, wherein all compounds have different properties, such as the ability to react or not to react to the heat of the action based on the termination of the access of oxygen to the flame, the absorption of heat from a flame and/or heat transfer from the flame to another connection.

In another embodiment, the first and second substances to deal with danger may consist of the same substance, different substances and/or differ only in terms of concentration. The first and second substances to deal with the risk can also be under pressure or may be distributed in a given volume. For example, as shown in Fig.2, the first suppressor 204 may be essentially uniformly distributed in the casing 202, and the second arrester is under pressure in pneumatic cylinder 316.

As shown in Fig.1, in the operating state of the first system 102 to combat the danger, containing the first substance 104 to combat the danger, may be located near the source 106 of danger. First with�system 102 to combat the danger can be connected to the second system 108 to combat risk through distribution system 110. The first system 102 to combat the danger can be properly arranged to supply a first substance 104 to combat the danger in response to a random event, such as damage to the first system 102 to combat the danger and/or source 106 of danger.

For example, as shown in Fig.2, the powder panel 202 and the source 106 of danger can be damaged by high-energy ballistic projectile moving along the path 210. In response to damage to the powder panel 202 releases the first arrester 204 to suppress flame or explosion, which could be the result of releases of hazardous substances from the source 106 of danger. Powder panel 202 may be configured to provide release of the first arrester essentially simultaneously with a random event. With reference to Fig.1 shows that after damage to the distribution system 110 may respond to the release of the first substance 104 to combat the danger and to actuate a second system 108 to combat the danger.

The sensor 112 can be used to determine the damage, the release of the first substance 104 to combat the danger and/or subsequent development of a dangerous situation such as a slowly growing fire. For example, sensor 112 may contain sensitive � pressure element, associated with the internal volume of the first system 102 to combat the danger. Damage and/or subsequent release of the first substance 104 to combat the danger can lead to loss of pressure in the internal volume. The sensor 112 can detect the change of pressure and to actuate a second system 108 to combat the danger of releasing the second substance to combat the danger through the tube 114.

Alternatively, the sensor 112 may include a sealed heat-sensitive pressure tube 114 connected to the second valve system 108 to combat the danger, which is made with the possibility of destruction under the action of a temperature above a particular level. For example, if the tube 114 is heated, which is linked with the ignition, the tube 114 can collapse, causing a pressure drop at the valve, thereby initiating the release of the second substance to combat the danger.

With reference to Fig.3 shows that the second system 108 to combat the danger may contain sealed pneumatic cylinder 316, which is appropriately configured to hold a second substance to combat the danger under pressure. For example, the second system 108 to combat the danger may contain feed system under low pressure, is arranged to hold a second substance� to combat the danger under pressure less than about 360 psi inch. Alternatively, the second system 108 to combat the danger may contain a supply system under high pressure, suitably configured to retain a second substance to combat the danger under pressure of approximately 850 psi.

When the second system 108 to combat the danger is actuated, the valve can regulate the rate of release of the second substance to combat the danger. The distribution system may also regulate, in what place the second substance delivered to combat the danger. For example, as shown in Fig.5, the pressure drop in the housing 302 may actuate the valve delivery system under low pressure to open and to release the second substance to fight the danger in the internal volume of the housing 302 during the time period of approximately sixty seconds. As shown in Fig.4, the high-pressure valve can be arranged to release the second substance to combat the danger through the tube 114 during the time period constituting less than one second, so that the entire volume around the body 302 may be filled with a second substance to combat the danger.

In the above description the invention is described with reference to specific illustrative options. Od�ako can be done various modifications and changes not beyond the scope of the present invention, which is defined by the claims. The description and drawings are illustrative and not limiting, and it is implied that the modifications included in the scope of the present invention. Accordingly, the scope of the invention should be determined according to the formula of the invention and its equivalents, and not only described examples.

For example, the steps contained in any of claims relating to a method or process that can be performed in any order and are not limited to the specific order presented in the claims. In addition, components and/or elements described in any of the claims that belong to the device may be assembled or otherwise functionally designed in various combinations and, accordingly, is not limited to the specific configuration shown in the claims.

Benefits, other advantages and solutions to problems have been described above in relation to specific options, but any useful result, advantage, solution to problem or any element that may cause the retrieval of specific beneficial result, the advantages of or solution or make it more pronounced, should not be construed as a critical, required, or essential feature or component of any manufacture� or all claims.

In used in this description of the meaning of imply that the terms "contain", "contains", "containing", "having", "including", "includes" or any variant includes a non-exclusive inclusion so that a process, method, article, composition or device that contains the elements not only includes these elements but also may include other elements not expressly listed or inherent to such process, method, article, composition or device. Other combinations and/or modifications of the above-described structures, locations, applications, proportions, elements, materials or components used in the practice of the present invention, in addition to those specifically listed may be modified or otherwise adapted to specific environmental conditions, technical specifications, design parameters or other technical requirements, without departing from the General principles.

1. Two-stage system plamegate for protection against instantaneous and slowly growing flame resulting from damage to a potential ignition source that contains:
the first system of plamegate containing:
first flash suppressor; and
the case containing:
the first wall; and
a second wall connected to PE�howling wall and forming an internal volume; and
the body is made with possibility:
fit first fitted in the internal volume of the first pressure; and
the release of the first flame arrester in response to the damage potential ignition source;
the second system plamegate connected with the possibility of reaction with the first system plamegate containing:
the second flame arrester; and
the capacity located at a distance from the housing and configured to accommodate the second flame arrester under the second pressure; and
distribution system connected to the container and arranged to:
issue a signal to the vessel in response to a pre-defined event; and
direction of the second arrester from the container to the housing in response to the signal.

2. A system according to claim 1, in which at least one of the first and second walls of the housing are arranged to essentially matching the surface potential flame source.

3. A system according to claim 1, in which:
pre-defined event includes the pressure drop in the housing; and
the distribution system further comprises a pressure sensor associated with an internal volume of the housing and configured to output a signal in response to the pressure drop in the case.

4. A system according to claim 1, in which the distribution system is additionally �will win the heat-sensitive element, performed with the opportunity to:
destruction in response to applied heat load; and
issuing a signal in response to the destruction of thermosensitive element.

5. A system according to claim 4, in which:
thermosensitive element contains a pressure tube; and
the signal is generated in response to the pressure drop in the pressure tube.

6. A system according to claim 1, in which the distribution system further comprises a sensor located over the surface area of the housing and configured to output a signal in response to the damage to the body.

7. A system according to claim 1, in which the container further comprises a valve configured to regulate the release rate of the second flame arrester.

8. A system according to claim 1, in which the second flame arrester is released into the inner volume of the shell.

9. A system according to claim 1, in which the second flame arrester is released into a region near the hull.

10. Two-step system to fight the threat to the source of danger, which may be released during a random event that contains:
the first agent to combat the danger;
the second agent to combat the danger;
the first system to combat the danger of reacting to a random event and is arranged to accommodate the first agent to combat the danger, the first system to fight � danger configured to supply the first agent to combat a hazard to the source of danger essentially simultaneously with the occurrence of random events; and
a second system to combat the risks associated with the first system to combat dangerous and is capable of:
fit the second agent to combat the danger; and
the release of the second agent to control the risk within pre-determined time period after the filing of the first agent to combat the danger.

11. A system according to claim 10, in which the first system to combat the danger comprises a housing located adjacent the source of danger, in this case:
the housing has a size to accommodate the first agent to control the risk under the first pressure; and
at least one surface of the housing being configured to fracture in response to a random event and the release of the first agent to combat the danger, at least near the place of destruction.

12. A system according to claim 10, in which the second system to combat the danger comprises a container containing a second agent to combat the danger under the second pressure.

13. A system according to claim 10, further comprising a sensor near the first system to combat the danger, the sensor being configured to actuate the second system to combat the danger.

14. A system according to claim 10, in which the second system to combat the danger of being configured to supply the second agent to fight the danger in the internal�the third volume of the shell.

15. A system according to claim 10, in which the second system to combat the danger of being configured to supply the second agent to fight the danger in the region near the hull.

16. Way of dealing with a fire, the resulting damage to the flame source, including:
at least partially surrounded by a flame source in a sealed housing having an internal volume, thus:
at least one housing wall essentially corresponds to the surface of the flame source;
the first flame arrester located in the internal volume of the housing at a first pressure; and
the case is made with the possibility of the release of the first flame arrester in response to the damage to the body;
the placement of the sensor within the housing, wherein the sensor is arranged to generate a signal in response to a pre-defined event;
the coupling capacitance with the sensor and the housing, thus:
the second arrester is in the tank under a second pressure;
the container is arranged to release the second flame arrester in response to the signal generated by the sensor.

17. A method according to claim 16, in which:
pre-defined event includes a pressure drop in the pressure housing; and
generating a signal includes determining the pressure drop in the internal volume of the housing.

18. A method according to claim 16, in which:
PR�varicella-defined event includes determining ignition temperature-sensitive element; and
generating a signal includes changing the state of thermosensitive element.

19. A method according to claim 18, in which:
thermosensitive element contains a pressure tube connecting the internal volume of the container; and
pressure tube being configured to fracture in response to the applied heat load.

20. A method according to claim 16, wherein the receptacle further being configured to release the second flame arrester for some period of time.



 

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3 tbl

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EFFECT: increased efficiency of fire extinguishing of extensive crown forest and steppe fires.

FIELD: fire safety.

SUBSTANCE: mobile fire extinguishing complex contains the ATV 1 used as a vehicle which by means of the coupling device 2 is coupled with a monoaxial trailer 3. On the trailer 3 a water vessel 4, a motor-pump 5 and a hydraulic accumulator 6 are placed. In the vessel 4 the filter 7 is installed with a possibility of extraction which placed inside the vessel 4 hollow; this filter is designed as a hollow metal cylinder the free end of which is punched with holes, and on the second end of the filter 7 connected to the suction sleeve 8 the float 9 is rigidly fixed. The motor-pump 5 is connected with the pressure head pipeline 11 the cavity of which is interconnected with the hydraulic accumulator 6 and the distributor 12 with the taps 13 which by means of connecting hoses 14 are connected with the side fire monitors 15 and with the manual fire monitor 16. The pressure head pipeline 11 is fitted with the bypass valve 17 which is connected to the overflow pipeline 18. On ATV 1 the additional frontal frame 20 with hingedly fixed axis 21 is installed on which the side fire monitors 15 connected among themselves by means of two rods 22 are placed. On the axle 21 the sliding screw spacer 23 is hingedly fixed, and in the top part of the frame 20 the lifting spacer 24 hingedly connected to the fixed part of the sliding spacer 23 is installed.

EFFECT: offered mobile fire extinguishing complex will allow to suppress forest fires in conditions of far location or absence of open water sources near the fire scene.

4 dwg

FIELD: fire safety.

SUBSTANCE: device of delivery of substances intended for extinguishing fire in confined spaces comprises a cannon 1 and a shell 2. The shell is made compound comprising a heavy cylinder 3 in the form of a cup and a light cylinder 4 connected monolithically to the conical part of the shell 2, in the form of a cup, and which outer diameter is equal to the inner diameter of the heavy cylinder, mounted to the sheared split pins 5 inside the heavy cylinder 3, forming the closed chamber 6 to accommodate the substance 7 for extinguishing fire. On the surface of the light cylinder 4 there are grooves 8 for the sheared split pins 5 with the length equal to the distance from the head 9 of the light cylinder 4 to the openings for the split pins 5.

EFFECT: possibility of extinguishing fires in confined spaces in the distance and the use of cannonry for peaceful purposes.

3 dwg

FIELD: fire safety.

SUBSTANCE: method of detection of peat fire comprises identification of the most fire-hazardous parts of peatlands and placement in the part area of vertical wells. The perforated tubes are mounted in the wells, the tubes are filled with smoke-generating pyrotechnic composition and the wellheads are covered with granulometric material. The coordinates of the wells are recorded on the forest fire map. The boundaries of the fire are determined by the smoke location over the wells and its coordinates are recorded on the map. In the well cavity simultaneously with feeding the exhaust gases of internal combustion engine the fine powder of calcium carbonate is fed.

EFFECT: in comparison with the analogue, the method provides the ability of use of signal wells on peatlands with high content of ferrous iron due to feeding into the well cavity of exhaust gases of the internal combustion engine and powder of calcium carbonate that suppress the vital activity of iron bacteria.

FIELD: firefighting means.

SUBSTANCE: invention relates to extinguishing of large-scale fires. Experience of extinguishing such fires demonstrated practical inefficiency of existing methods for a series of reasons, the main of which is insufficiency and often unavailability of the main agent for fire extinguishing - water. The original source of the main fire extinguishing agent is atmospheric air, which contains water vapours. Absolute humidity of air, i.e. mass of water vapour per unit of air volume, depends on temperature and atmospheric pressure. According to statistics, in average on the soil surface on 1 m2 there is 28.5 kg of water vapour available in air above this surface. Production of water from air, according to the proposed method, is carried out by cooling of air volume above fire zone to the temperature below the dew point temperature, i.e. when water vapour condenses and falls in the form of rain (or snow). Air above the fire zone is cooled by means of even distribution of liquefied nitrogen in its volume from reservoirs installed in aircrafts, in layers at different altitudes in the altitude range from several hundreds meters to the soil surface to approximately 1500 m. Simultaneously air is cooled in the surface layer from reservoirs with liquefied nitrogen, placed on the surface of soil along the perimeter of the fire front.

EFFECT: method to extinguish large-scale fires has a scientific basis, which makes it possible to produce the original source of this main fire extinguishing agent, not using technical means for delivery of water to seats of fire from natural or manmade water reservoirs, which may be located at significant distances from the fire zone.

3 cl, 1 dwg

FIELD: fire safety.

SUBSTANCE: method comprises forming inside a facility of a hypoxic gas-air medium with the set initial low content of oxygen under normal pressure of hot water supply; the oxygen content is set depending on the type of the pressurised space. Monitoring is carried out by sensors of pre-alarm pre-fire state of the gas-air medium, and the pressure and oxygen content are adjusted if needed, in the specified period of time, by reducing the oxygen content and increasing the content of nitrogen or inert gas to the values of the concentration and pressure specified for this space, sufficient to detect and eliminate the causes of the pre-alarm state. After a series of measures the initial set value of oxygen content is reset at the normal pressure of hot water supply for each closed space of the pressurised facility. The device for implementing the method comprises a system control unit, a sensor assembly of controlling parameters of the gas-air medium and the assembly of cylinders with inert gas or a mixture of inert gases, it additionally comprises a sensor assembly of pre-alarm control, connected by information-control and pneumatic bonds, a regeneration unit of the gas-air medium, an assembly of cylinders with oxygen, an assembly of oxygen distributors, an assembly of high pressure air cylinders, an assembly of the gas-air medium purification with the filter of purification from mechanical impurities and the filter of purification from harmful chemicals and carbon oxide, an assembly of separation of air, an assembly of high pressure compressor, and a compartment control unit in each controlled space of the pressurised facility.

EFFECT: reduction of the risk of combustion and fire on submarines and other pressurised inhabited facilities by introducing pre-alarm monitoring and creation in them of the hypoxic gas-air media, with simultaneous creating the conditions for normal functioning of the submarine crew under conditions of an extended voyage.

18 cl, 4 dwg

FIELD: fire safety.

SUBSTANCE: fire suppression system of premises with increased gas medium pressure, containing a firm sealed tank for storage and feeding of fresh water under pressure on the pipeline into the premises on the centrifugal sprayers, a high pressure air cylinder connected by the pipelines through the air reducer to the tank, the device of limiting the rate of pressure increase, the device of maintaining the differential pressure during decompression, and the control panel with alarm sensors. The air reducer over the membrane cavity is connected by the pipeline to the volume of the protected premises and creates a predetermined differential pressure between the sprayers and the premises, the centrifugal sprayers on the swirlers have spring-loaded movable cylinders, the regulating sections of tangential windows of swirlers, maintaining the required opening angle of the jet of atomised water, the device of maintaining the differential pressure during decompression by the pipelines is connected to the tank and the volume of the protected premises.

EFFECT: improvement of efficiency of the fire suppression system by increasing the intensity of supply of atomised water with an increase of pressure of gas medium during a fire.

2 dwg

FIELD: fire-fighting equipment, particularly for volumetric fire extinguishing in closed space.

SUBSTANCE: method involves separate feeding cooled gaseous aerosol with progressively increasing temperature to upper space of room to be protected at the command of control system; additionally supplying sprays of fire-extinguishing powder mixed with products of solid fuel combustion across the whole room volume or locally in lower room part at maximum speed, wherein quantity of supplied aerosol, initial time, direction and necessity of fire-extinguishing powder supply is determined from fire spread speed and nature. Fire-extinguishing substance is supplied in accordance with the following program. Under false operation of control system or in the case of small fire apparatus is given a command to supply gaseous aerosol. If fire covers the full room volume apparatus is given a command in 5 - 10 min to supply gaseous aerosol and, when needed, if fire is not extinguished, apparatus is given a command to additionally supply fire-extinguishing powder. If fire is accompanied by explosion and in the case of room air-tightness failure apparatus is given a command to simultaneous supply gaseous aerosol and fire-extinguishing powder. Fire-extinguishing apparatus comprises at least one aerosol generator AG 1, at least one powder extinguisher PE 2 with solid-fuel displacing gas generator GG 3, control system for operating fire-extinguishing composition supply connected to aerosol generator and powder extinguisher. Control system has sensors 4 and control-and-triggering means 5. Aerosol generator and gas generator GG 3 are provided with cooling inert nozzles. Control system is programmed to actuate aerosol generator and powder extinguisher in dependence of fire nature.

EFFECT: increased efficiency, reduced time of space filling with fire-extinguishing composition and, simultaneously, increased economy and safety to people, possibility to extinguish fires at early stage in large rooms with dense equipment arrangement in the case of people present and in rooms with large quantities of pressurized combustible materials which may explode with creation of high-power fire sites distributed across the whole room volume; increased consumption of fire-extinguishing composition and reduced volumetric concentration thereof, increased reliability of fire-extinguishing system in temperature range from -60° to +60°.

10 cl, 2 dwg

FIELD: protective and emergency equipment for servicing ground launch structures.

SUBSTANCE: in launching the vehicle, compressed gas is fed through collector nozzles to engine zone via one of mains to main circular main where pressure more than 0.6 Mpa is maintained. Simultaneously, air is fed to engine zone through nozzles of additional collectors via two mains. As pressure drops below 0.6 Mpa, air is fed via two other mains supplying gas to main collector and via three mains of additional collector. In case of repeated drop of pressure to 0.6 Mpa, air is fed via two remaining mains of main collector. Proposed system includes compressed gas bottles and gas supply mains with controllable shut-off fittings. Mains are combined (five mains) by means of main and additional collectors. Additional collector is provided with two or more divergent nozzles. Fittings are made in form of normally closed pneumatic valves controlled by separate groups. Circular collector nozzles are conical in shape and are located at angles of 30 deg. and 45 deg. relative to vertical axis of launch vehicle.

EFFECT: enhanced efficiency of fire prevention.

3 cl, 6 dwg

Fire airship // 2250122

FIELD: fire-fighting technique; extinguishing large-scale fires.

SUBSTANCE: proposed fire airship includes disk-shaped aerostatic body, power plants with variable thrust vector, crew cabin with control system, landing gear and mooring arrangement. Body consists of upper and lower elastic convex envelopes whose edges are secured on frame which is closed over perimeter ; this frame is connected with tubular member by means of rigid radial beams forming the central compartment; said tubular member is located along vertical axis of aerostatic body whose cavity is divided by inclined gas-tight membrane into lighter-than-air compartment containing the bottles charged with this gas and thermal ballasting compartment located under first one. Upper and lower convex envelopes are provided with upper load-bearing ring secured on end face of tubular member and lower load-bearing ring with sleeve forming the cargo compartment. Inner and outer edges of gas-tight membrane are secured respectively on closed frame and on lower load-bearing ring which is connected with closed frame and with rigid tubular member by means of longitudinally rigid members. Water tank installed in cargo compartment is connected by means of flexible hose with pipe mounted coaxially relative to rigid tubular member; pipe terminates in funnel secured on upper load-bearing ring. Water tank is provided with outlet pipe for forming water packs dropped onto burning site.

EFFECT: enhanced efficiency of fire-fighting.

4 cl, 6 dwg

FIELD: means of explosion preventive maintenance at ammunition depots.

SUBSTANCE: the plant has a interconnected compressed air source, measuring instruments, valves, vessels with ingredients of starting foaming agent and a mixer with air or liquid channels at the inlet. The air channel has an adjusting valve and/or pressure regulator, and the mixer - at the outlet a foaming hose with a hose barrel at the free end. At the inlet the mixer is provided with an injector connected through a vessel to the ingredients of the starting solution by means of a suck-in hose and a liquid channel with a water feed pump. The ratio of the inside diameter of the foaming hose-to-the length makes up 1:(500...1000).

EFFECT: provided compactness of the plant and expanded its functional potentialities.

10 cl, 18 dwg

FIELD: fire prevention, particularly for power engineering and transport, to design rooms, compartments and so on characterized by risk of explosive gaseous mixture (air and inflammable gas, combustible liquid vapor) accumulation, namely to protect combustible material storage facilities, power plant rooms, compartments in vehicles and so on.

SUBSTANCE: the essence in the invention is in the following. When combustible gaseous mixture even having stoichiometric fuel-oxidizer ratio ignites detonation wave appears practically immediately. For detonation wave forming some space is needed in which separate compression waves generated by flame are united in common compression shock, namely in detonation wave. The detonation wave unlike the compression wave immediately heats gaseous mixture behind wave front. Because of above heating detonation wave moves with supersonic speed, pressure in wave front is substantially higher than in the case of normal gas burning. Above pressure increase takes place practically instantly at distance equal to several free paths of gas molecules. To take into consideration above processes system has adjusting partitions arranged so that straight distance between any two points in free space does not exceed length of predetonation zone in stoichiometric mixture of above gaseous mixture including oxygen, wherein the mixture is under atmospheric pressure if the volume communicates with atmosphere and is under maximal possible pressure if the volume is closed.

EFFECT: prevention of gaseous mixture detonation.

2 dwg

Blasting supply // 2265793

FIELD: shaped-charge action on solid media, in particular, ice masses and emergency objects with the aim of their destruction, applicable for destruction of ice jams, elimination of avalanche-like and mud flow situations, liquidation of aftereffects of natural and technogeneous cataclysms, fires, as well as at production of fire-fighting water reservoirs.

SUBSTANCE: blasting supply has a cover, frame closed by a cover and made in the form of a latticework, propelled substance, explosive placed in the cover, the cover has two layers, pulled up on the latticed frame expansible upwards made of ribs converging in the lower part, the propelled substance is placed between two layers of the cover, an antioverturning is attached to the cover from the top.

EFFECT: enhanced efficiency of the blasting effect on the objects to be destructed.

22 cl, 1 dwg, 6 ex

FIELD: fire-fighting, particularly to prevent or suppress fire in closed space.

SUBSTANCE: method involves supplying oxygen displacing gas in the room to provide the first inert level characterized by reduced oxygen content in comparison with natural one; additionally stepwise or rapidly supplying oxygen displacing gas into the room to provide several different inert levels with greater oxygen content reduction. Stepwise gas supply is performed if needed. Rapid oxygen supply is carried out in the case of fire outbreak. Device for above method realization is also disclosed. The device comprises oxygen sensing means used to detect oxygen content in predetermined room and oxygen displacing gas source.

EFFECT: increased simplicity and reduced cost of displacing gas storage.

17 cl, 5 dwg

FIELD: fire-fighting, particularly to extinguish fires in decompression pressure chambers of ships and boats and in deep-ocean diving systems.

SUBSTANCE: method involves creating anoxic gas medium by compression with compressed helium at maximal possible rate to obtain pressure necessary to produce oxygen-nitrogen-helium medium having oxygen concentration of not more than 10-12%; holding above medium to combat fire; decompressing divers in special mode, which provides gas equilibrium in diver's organisms, when current summary human tissues saturation with nitrogen and helium does not exceed outer pressure value, and sufficient oxygenation.

EFFECT: increased efficiency of fire extinguishment due to provision of oxygen concentration, which does not sustain combustion, increased safety of divers due to necessary partial nitrogen pressure provision and due to correct decompression mode usage.

FIELD: rescue engineering; devices for rescue operations.

SUBSTANCE: the invention is pertaining to the device for rescue operations, which may be used both for fire extinguishing and for evacuation of people. The technical result of the invention achievable at realization of the given invention is expansion of the functional capabilities of the device for rescue operations. The device for rescue operations includes the skeleton, the lateral fencing wall made with the capability of folding in the vertical direction, the bottom. The lateral fencing wall is made out of the fire-resistant and waterproof material, has the lobes anchored by one edge along the perimeter of the bottom and above the mesh bottom. The lobes in their hanging down position cover the whole surface of the mesh bottom. The ends of some lobes have flaps made out of the waterproof material overlapping the gaps between the lobes while they are in their down position. The top end of one of the lobes is connected to the end of the cord. The skeleton has the upper and the lower hollow rim rings. At that the internal volume of the upper rim ring ensures buoyancy of the device.

EFFECT: the invention ensures expansion of the functional capabilities of the device for rescue operations.

3 cl, 7 dwg

FIELD: fire fighting, particularly to extinguish fire in large volatile flammable liquid storage facilities under low ambient temperatures in northern zones.

SUBSTANCE: method involves delivering fire-extinguishing powder via pipeline to fire site so that fire-extinguishing powder is fluidized and aerated along the full pipeline length. Fire-extinguishing system comprises fire-extinguishing powder supply pipeline installed in potential fire initiation zone, accumulation vessels for fire-extinguishing powder, compressed gas source and alarm means. The supply pipeline has gas-permeable longitudinal partition, which divides the pipeline into low-pressure and high-pressure cavities. The pipeline is provided with outlet valves and is connected with compressed gas source through accumulation vessels. Alarm means are made as infrared sensors and are communicated with control electronic apparatus. Each outlet valve is provided with electric drive connected with control electronic apparatus.

EFFECT: provision of fire extinguishing in the cases, in which water and fire-extinguishing foam usage is impossible, increased reliability and safety of fire suppression under low temperatures, reduced fire-extinguishing system response time and decreased maintenance costs.

7 cl, 4 dwg

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