RU2680128C1 - Pulse multi-modular installation of dry powder fire fighting - Google Patents

Pulse multi-modular installation of dry powder fire fighting Download PDF

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Publication number
RU2680128C1
RU2680128C1 RU2018107997A RU2018107997A RU2680128C1 RU 2680128 C1 RU2680128 C1 RU 2680128C1 RU 2018107997 A RU2018107997 A RU 2018107997A RU 2018107997 A RU2018107997 A RU 2018107997A RU 2680128 C1 RU2680128 C1 RU 2680128C1
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module
fire extinguishing
powder
powder fire
frame
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RU2018107997A
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Russian (ru)
Inventor
Иосиф Микаэлевич Абдурагимов
Павел Сергеевич Тукмачев
Сергей Николаевич Баев
Елена Павловна Чащина
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Общество с ограниченной ответственностью "Эпотос-К"
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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/02Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires

Abstract

FIELD: fire safety.SUBSTANCE: invention relates to counter-intelligence equipment of fire fighting, in particular to pulsed multi-modal installations of operational dry chemical fire fighting, and can be used both to extinguish and temporarily suppress of flame of fountain and spill of flammable liquid, and can also be used to eliminate the ignition of heavy vehicles. In a pulsed multi-module dry chemical fire fighting installation containing a supporting member in the form of a metal frame, made with the possibility of its mounting in a vertical and inclined position (from -6 to +15 degrees), the frame is rigidly connected with at least one horizontal crossbar, on the crossbar mounting units are installed, ensuring the landing of each module body with the orientation of the module axis relative to the plane of frame at an angle mainly from 0 degrees to 24 degrees up, the design is made with the possibility of rigid fixation of units on it for fixing body of each dry chemical fire fighting module with a vertical axial release with a gas generator inside, the case is filled with chemical powder, the outlet hole of the module is covered with an opening diaphragm, each module is additionally equipped with a guide nozzle mounted directly on module outlet hole after the diaphragm and directed at an angle of 85–95 degrees relative to the module axis, at the same time, length of the nozzle is 2–4 diameters of the module outlet hole, fastening units mounted on the crossbar, made with the possibility of additional horizontal turn of the module with ensuring fan direction of axes of powder jets while maintaining the free angle of their disclosure.EFFECT: extinguishing the flame of flammable liquid fountain with the height of 8–13 m; extinguishing of the flame spill flammable liquid on the area not less than 36 sq m; remainder of the powder in the module after deployment, less than 10 %.8 cl, 4 dwg

Description

The invention relates to an operational fire extinguishing technique, in particular to pulsed multimodular installations of operational powder fire extinguishing, and can be used both for extinguishing and temporarily suppressing the fountain flame and spilling of combustible liquid, and can also be used to eliminate the ignition of heavy vehicles.

At present, there are no operational fire extinguishing means necessary for extinguishing, as well as in case of sudden ignition, for example, when carrying out complex repairs of gas and oil wells or when igniting emergency spills of combustible liquids. It is not always possible to guarantee complete quenching, since an ejection (for example, in the form of a repeated fountain of liquid oil) or a spill can occur. In such circumstances, rapid suppression of the flame is required to ensure sufficient time for people to leave the danger zone (according to statistics, this time is no more than 6 seconds). Then it will be possible to apply both the proposed installation and carry out the necessary operational measures to completely eliminate the dangerous source of ignition.

The well-known “Powder fire fighting vehicle” (RF patent No. 2158154, IPC A62C 27/00, publ. 10/27/2000) This invention allows to restore the vehicle’s performance by replenishing the fire extinguishing composition and maintaining the working air pressure in tank containers without the need to return to the base. The essence of the invention lies in the fact that the powder extinguishing vehicle is additionally equipped with a pneumatic loading system of a fire extinguishing composition without extraneous sources of compressed air and loading devices, the pressure source is made in the form of a unit equipped with a receiver, including compressor heads driven by an automobile power take-off box, and a container for a fire extinguishing composition made in the form of two tanks sequentially and vertically mounted along the longitudinal axis of the chassis, made by a pneumatic circuit of parallel operation you are on the gun mount and hose lines, while the aeration device of the extinguishing agent in each tank is made in the form of a collector installed in the lower bottoms of the last, equipped with nozzles, and the arms of the hand barrels are placed in the rear of the chassis on two fixed coils driven by a car engine, moreover, each of the tanks with a fire extinguishing composition is additionally equipped with a coarse filter, a sleeve for supplying a fire extinguishing composition to the tank and a purge system of the coarse filter connected through the shut-off yu valves with pnevmokommunikatsiyami.

The disadvantage, which is an obstacle to its use, is the danger of the vehicle approaching a large-scale fire source at a distance that provides effective extinguishing or temporary suppression of the flame. Known RF patent No. 2259855 (IPC A62C 31/02, publ. 09/10/2005) "Method of extinguishing a fire and a multi-jet former of a stream of extinguishing powder for its implementation (options)." In the description of this patent according to the first embodiment, the design of a multi-jet former of the extinguishing powder stream is presented, which contains an inlet pipe with a nozzle at its end, made in the form of a bunch of pipes whose axes are located in the same plane with the axis of the inlet pipe and at the same angle to each other. Moreover, this angle does not exceed half the opening angle of the jets of the gas-powder mixture. In addition, the axis of all nozzle nozzles intersect at one point located on the axis of the inlet nozzle and have a cylindrical shape.

The technical result is to increase the protected area and the uniform distribution of the extinguishing powder on its surface. However, the known flow former does not suppress the flame of a fountain of combustible liquid (with vertical flame propagation), as well as extinguish the mirror surface of a spill of burning oil even at a distance of 10-12 m from the source.

The well-known "Mobile pulsed multi-barrel installation of powder fire extinguishing" (RF patent No. 2414942, IPC А62С 27/00, 3/02, publ. 03/27/2011), which is intended for use as an operational means of fire extinguishing by remote supply of fire extinguishing composition to the fire fire during fire extinguishing in gas and oil wells. The installation contains a frame (frame type), attachment points in the form of cartridges, where powder fire extinguishing modules called trunks are installed along the guides. The inclination of the cassettes in the vertical plane can be changed using the rod system. Part of the smaller diameter of each barrel module is covered by an opening membrane. Each barrel module is equipped with an electrical connector and contains fire extinguishing powder. The gas generator is installed with the possibility of its replacement and is fixed in part of a larger case and connected to an electrical connector.

The gas generator is equipped with holes for aeration of the powder. The unit is designed for rapid fire extinguishing with remote supply of extinguishing powder to the source of ignition only using manual control (from the remote control).

An obstacle to the use of the known installation is the following disadvantages. The dense parallel placement of the modules (trunks) provides a high density of the powder in the stream, but cannot extinguish or suppress the flame of a spill of combustible liquid over an area of more than 15 square meters, and extinguish or suppress the flame of a gushing combustible liquid only at a low fountain height. Moreover, the range of the powder jet does not exceed 12-14 meters.

The design of the module (barrel) does not ensure the completeness of the ejection of powder, especially when the axis of the module is tilted up (the rest of the powder in the housing after ejection can reach 40%).

The closest technical solution for the combination of essential features and the achieved technical result is RF patent No. 2414942, which is selected as a prototype.

An object of the present invention is to provide remote extinguishing or suppressing a flame of a spill or fountain of a combustible liquid.

When using the proposed device provides the following technical result:

- extinguishing the flame of a fountain of combustible liquid with a height of at least 8-13 m;

- extinguishing the flame of a spill of combustible liquid in an area of at least 36 square meters. m;

- providing a non-ignition time of at least 6 s;

- flame suppression time from the moment of ignition - no more than 3s;

- the range of the jet at a distance of at least 20 m;

- the remainder of the powder in the module after operation is less than 10%.

Achieving the indicated technical result is ensured by the fact that a pulsed multi-module powder fire extinguishing installation containing a supporting structure made with the possibility of rigid fixation of nodes for fastening the housing of each powder fire extinguishing module equipped with an electric start function, a gas generator is installed inside the module housing, the housing is filled with fire extinguishing powder, the neck the module is blocked by an opening membrane, the installation is made with the possibility of controlling the hearth whose initiating impulse to the gas generator of each module, characterized in that a metal frame is used as the supporting structure, made to be mounted vertically and in an inclined position, the frame is rigidly connected by at least one horizontal crossbar, fastening nodes are installed on the crossbar to ensure landing each module case with the orientation of the axis of the module relative to the plane of the frame at an angle, mainly from 0 degrees to 24 degrees up, using the powder fire extinguishing module a module with a vertical axial outlet, each module is additionally equipped with a guide nozzle mounted directly on the outlet of the module after the membrane and directed at an angle of 85-95 degrees relative to the axis of the module, while the length of the nozzle is 2-4 diameters of the outlet of the module, attachment points mounted on the crossbar, made with the possibility of additional horizontal rotation of the module with the provision of a fan direction of the axes of the powder jets while maintaining a free angle of their opening.

The number of horizontal crossbars can be from 1 to 7, which is determined by the size and power of the flame suppression center and the corresponding number of installed powder modules.

The number of module attachment points on the crossbar is from 2 to 9, which is also determined by the number of powder modules installed, corresponding to the size and power of the flame suppression center.

When the number of bolts is more than one, the attachment points of the modules on the bolts are staggered between each other and at a distance of ensuring "tight packing" the modules are placed on the frame both vertically and horizontally, which leads to additional uniformity of the jet density and also contributes to increasing the range of the powder jet.

It is preferable to carry out the attachment points with the possibility of quick installation / dismantling of powder fire extinguishing modules, which reduces the time of reloading the entire installation.

The execution of a pulsed multi-module powder fire extinguishing installation with the possibility of fixing the frame tilt relative to the vertical from -6 to +15 degrees allows flame suppression under special conditions, for example in recesses (negative tilt angle) or when extinguishing fountains exceeding 8 m in height (positive tilt angle in within 15 degrees from the vertical).

The fixation of the position of the frame of the pulsed multi-module installation can be provided, for example, by symmetrically arranged stops with comb engagement mounted on a common support with the frame.

The achievement of the specified technical result is ensured by using the entire set of essential features of the proposed installation.

The proposed pulsed multi-module powder fire extinguishing installation is illustrated by drawings (schematically): in FIG. 1 is a side view, and FIG. 2 is a front view, in FIG. Figure 3 shows a section of a powder fire extinguishing module (MPF). Figure 4 presents a diagram of the suppression of the flame of a fountain (approximately 8 m high) of combustible liquid by two units symmetrically located relative to the focus at a distance of about 20 meters (each).

Explanations for the indicated drawings: 1- frame, 2- bolt (there are four of them in the drawing), 3- module attachment nodes (there are four on each bolt in the drawing) ensure that each module housing is aligned with the axis of the module relative to the frame plane at an angle from 0 degrees to 24 degrees with a deviation up. The powder fire extinguishing module - 4 has a vertical axial outlet - 5, but is additionally equipped with a guide nozzle - 6, located at an angle of 85-95 degrees relative to the axis of the module. The length of the nozzle is 2-4 diameters of the outlet of the module. The nozzle (6) is installed directly on the outlet (outlet 5) of the module, immediately behind the -7 membrane.

A fire extinguishing powder (8) and a gas generator (9) with the possibility of electric start are placed in the housing of the module (4).

The attachment points (3) mounted on the crossbar (2) are made with the possibility of additional horizontal rotation of the module to ensure a fan-shaped axis of the powder jets while maintaining a free opening angle. Fastening nodes (3) also provide the possibility of quick mounting / dismounting of powder fire extinguishing modules, which contributes to the rapid replacement of modules in emergency conditions.

When the number of bolts is more than one (as shown in the drawings), the attachment points of the modules on the bolts are staggered among themselves and at a distance of ensuring "tight packing" of the modules on the frame, both vertically and horizontally.

Fixing the vertical or inclined (from-6 to +15 degrees) position of the frame (1) is provided by symmetrically placed stops (10) with comb engagement (11) mounted on a common support (12) with the frame (1).

The proposed installation works as follows.

The pulse installation of operational fire extinguishing is installed in the place of possible ignition at a distance of up to 30 meters. In FIG. Figures 1 and 2 show the installation prepared for launch, where the frame (1) is in a vertical position with horizontal crossbars (2). The guide nozzles (6) of the modules (4) of the lower crossbar are parallel to the horizon (inclination of the Fence). On the next crossbar, the MPP exhaust nozzles make an angle of upward elevation relative to the horizon - 2 degrees. In the third row from the bottom, the MPP exhaust nozzles comprise an angle of upward elevation relative to the horizon - 12 degrees, and on the fourth crossbar, the angle of elevation of the nozzle upward relative to the horizon is -24 deg. Such an arrangement of the guide nozzles (6) of the MPP (4) in combination with the corresponding arrangement of the attachment points (3) of each module allows both extinguishing and suppression of the flame. The automatic activation of the powder fire extinguishing modules (4) of this installation occurs upon a signal from the flame recorder (for example, the Tulip 2-16-1-2 fire detector IPP-329 / 330-22-1. Operation manual ATPN.425241.003-09RE ) A start signal can also be given from the hand control panel. In this case, the signal to start the gas generators (9) can be applied both to all MPPs and to their separate group, depending on the shape and volume of the source of ignition. When the gas generator (9) is triggered, the gas enters the internal volume of the module (4) with an axial outlet (5), when the required pressure is reached, the membrane (7) is opened and, under the influence of the gases, the powder (8) is removed from the housing through the guide nozzle (6) and is produced by a shaped stream in the direction specified by the location of the MPP itself and its nozzle.

The design features of the installation provide a fan (both horizontal and vertical) direction of the axes of the powder jets while maintaining a free angle of their disclosure, achieving the range of the powder jet and uniform density.

The stability of the position of the frame (1) is fixed, for example, by two stops (10) with engagement combs (11) mounted on a single support (12).

To reuse the MPP (for example, extinguishing), the spent modules are quickly dismantled and spare ones are installed.

The tests were carried out at the test site of Eposot-K LLC in order to confirm the fire-extinguishing ability of the installation when extinguishing a fountain of combustible liquid (diesel fuel) with a flame height of 8 meters in combination with a spill of 6X6 meters in size. Tests were experimental samples of the proposed installation, made in accordance with the characteristics set forth in the claims. At first, installations in the form of a frame with four horizontal crossbars were tested; on each crossbar, four Buran-15ITU1 powder fire extinguishing modules with vertical axial outlet were installed. Each module is equipped with guide nozzles directed upward at an angle of 85 to 95 degrees. The length of the nozzles ranged from 2 to 4 diameters of the outlet of the module.

The strait was modeled using a model center, which is a 6 × 6 m sand embankment. The embankment contained at least 5 cubic meters of liquid without overflowing it. First, the model hearth was filled with water to create a horizontal surface, then 250 liters of diesel fuel was added, to facilitate and accelerate the ignition, immediately before testing, 40 liters of G3 443-76 C3-80 / 120 nephras were added to the hearth.

A fountain of flammable liquid was simulated using a pump K80-65-160 with a pipeline supplying liquid through a cylindrical nozzle in an upright position in the center of the debris. First, a flammable liquid (approximately 200 liters) was supplied to the fountain for 15 seconds to record the parameters of the fountain. Combustible liquid was supplied from a 1200 l tank.

During the tests, the recorded flame height after the fountain was launched ranged from 8 to 15 meters, while the following indicators were recorded:

- the height of the flame of the fountain of flammable liquid;

- area for extinguishing a flame of a spill of a combustible liquid;

- non-ignition time;

- flame suppression time from the moment of ignition;

- jet feed range;

- the remainder of the powder in the module after operation; - synchronization of operation;

- extinguishing ability when extinguishing the fountain and the strait (visually).

The tests were recorded by video, time indicators were determined with an accuracy of 0.1 s.

Extinguishing experiments were carried out first by two units located opposite each other, providing a distance between the nozzles of the modules of the two units - 60 meters ..

After ignition and flame propagation over the entire surface of the source and subsequent free combustion, the pump engine was started for 30 seconds. Vertical stream of flammable liquid - from 8 meters, 5 seconds after ignition of the fountain stream, a command was issued to start both installations. Within 10 seconds after the operation of the MPP, the test result was recorded.

The following experiments were carried out with one installation located at a distance of 20 meters from the source described above. The spent MPPs were quickly replaced and further tests were carried out using one installation.

The objectives of the following tests:

1. Suppression of the flame of the fountain of a combustible liquid with a height of up to 15 m (without spill), while the start signal was sent simultaneously for every two medium MPPs on all four crossbars (that is, 8 out of 16 installed modules participated).

2. Extinguishing a spill of combustible liquid with an area of 6 × 6 m when starting up four MPPs only on the lower crossbar with the location of the nozzles along the horizon (inclination 0 deg.).

During all the tests, the MPP was installed in the attachment points with the modules turned horizontally and with the possibility of a fan-shaped axis of the powder jets being possible while maintaining the free opening angle.

Additionally, tests were carried out to extinguish a spill of the same area, but in a recess (approximately 0.5 meters). In this case, the frame inclination was minus 6 degrees (the frame was tilted down) and this position was fixed by engagement combs. The extinguishing was carried out by launching the modules from the two lower crossbars.

Also, the fountain flame was extinguished by a height of 13 meters when the frame was tilted from a vertical position by + 15 degrees.

All tests performed confirmed the operability of the proposed installation and the achievement of the indicated technical results:

- extinguishing the flame of a fountain of combustible liquid with a height of 8 to 13 m;

- extinguishing the flame of a spill of flammable liquid over an area of more than 36 square meters. m;

- providing non-ignition time for 6 s;

- flame suppression time from the moment of ignition for more than 3 s;

- the range of the jet at a distance of more than 20 m (up to 30 m);

- the remainder of the powder in the module after operation is less than 10%.

At the same time, the synchronization of operation and the launch of the MPP were noted.

The achievement of these results is ensured by using the totality of the essential features set forth in the claims.

If the numerical values of the parameters deviate from the declared, the following is observed:

- reducing or increasing the installation angle of the guide nozzle relative to the MPP axis (less than 85 or more than 95 degrees) leads to an increase in the amount of powder residue in the housing after operation (15% or more);

- if the length of the guide nozzle is less than 2 diameters of the MPP outlet, then an unstable stream shape is observed, which affects the flight range, and if it is more than 4 diameters, the powder ejection time increases .;

- the optimal angle of orientation of the MPP axis relative to the plane of the frame is an angle from 0 to 24 degrees, but in special cases, the angle of inclination can reach -6 degrees (for extinguishing in a depression) and up to 15 degrees (when extinguishing foci above 8 meters). Changing the slope below minus 6 degrees or more than 15 degrees is impractical because it has no practical use.

- the number of crossbars and the number of MPPs on each crossbar are limited only by technical capabilities and needs.

Claims (9)

1. Pulse multimodular powder fire extinguishing installation containing a supporting structure made with the possibility of rigid fixation of nodes for fastening the casing of each powder fire extinguishing module equipped with an electric start function, a gas generator is installed inside the module casing, the casing is filled with fire extinguishing powder, the outlet neck of the module is covered by an opening membrane, the installation is made with the possibility of controlling the supply of an initiating pulse to the gas generator of the module, characterized in that a metal frame is used as a supporting structure, made to be mounted vertically and in an inclined position, the frame is rigidly connected by at least one horizontal crossbar, fastening nodes are installed on the crossbar to secure each module housing with the orientation of the module axis relative to the plane of the frame on the angle is mainly from 0 degrees to 24 degrees up, as a module for powder fire extinguishing use a module with vertical axial release, each module additionally with equipped with a guide nozzle mounted directly on the outlet of the module after the membrane and directed at an angle of 80-95 degrees relative to the axis of the module, while the length of the nozzle is 2-4 diameters of the outlet of the module, the attachment points mounted on the crossbar are made with the possibility of an additional turn of the module horizontally with the fan direction of the axes of the powder jets while maintaining the free angle of their disclosure.
2. Pulse multimodular powder fire extinguishing installation according to claim 1, characterized in that the number of horizontal crossbars is not more than 7.
3. Pulse multimodular powder fire extinguishing installation according to claim 1, characterized in that the number of attachment points of modules on the crossbar is from 2 to 9.
4. The pulsed multi-module powder fire extinguishing installation according to claim 1, characterized in that when the number of bolts is more than one, the attachment points of the modules on the bolts are staggered between each other and at a distance of ensuring "tight packing" of placing the modules on the frame both vertically and horizontally.
5. Pulse multimodular powder fire extinguishing installation according to claim 1, characterized in that the attachment points are made with the possibility of rapid installation / removal of powder fire extinguishing modules.
6. Pulse multimodular powder fire extinguishing installation according to claim 1, characterized in that the fixed inclination of the frame relative to the vertical can be from -6 to +15 degrees.
7. Pulse multimodular powder fire extinguishing installation according to claim 1, characterized in that the fixation of the position of the frame is provided by symmetrically arranged stops with comb engagement mounted on a common support with the frame.
8. The pulsed multi-module powder fire extinguishing installation according to claim 1, characterized in that the initiation pulse is controlled automatically by a signal from the flame recorder.
9. The pulsed multi-module powder fire extinguishing installation according to claim 1, characterized in that the initiation pulse is controlled manually from the remote control.
RU2018107997A 2018-03-06 2018-03-06 Pulse multi-modular installation of dry powder fire fighting RU2680128C1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6860187B2 (en) * 1999-04-07 2005-03-01 Metal Storm Limited Projectile launching apparatus and methods for fire fighting
RU2414942C1 (en) * 2010-05-04 2011-03-27 Закрытое акционерное общество "Источник Плюс" Mobile pulse multiple dry powder fire extinguishing installation
RU120366U1 (en) * 2012-05-31 2012-09-20 Николай Александрович Панкратьев Multi-module installation of pulse powder fire fighting
US9074843B1 (en) * 2012-10-05 2015-07-07 Jerry R Montgomery Payload delivery device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6860187B2 (en) * 1999-04-07 2005-03-01 Metal Storm Limited Projectile launching apparatus and methods for fire fighting
RU2414942C1 (en) * 2010-05-04 2011-03-27 Закрытое акционерное общество "Источник Плюс" Mobile pulse multiple dry powder fire extinguishing installation
RU120366U1 (en) * 2012-05-31 2012-09-20 Николай Александрович Панкратьев Multi-module installation of pulse powder fire fighting
US9074843B1 (en) * 2012-10-05 2015-07-07 Jerry R Montgomery Payload delivery device

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