RU193850U1 - Fire barrel - Google Patents

Abstract

A fire barrel including a pressure regulator for supplying a fire extinguishing agent through a mechanical cleaning filter to a flow distributor consisting of a body with a cover on which a handle for selecting a flow mode is fixed, and a rotary cylindrical mechanism with horizontally located channels inside it by means of which the extinguishing agent enters the irrigation head of a cylindrical shape with a conical surface formed by the bevel of the angle between the end and to the irrigation surfaces of the irrigation head, connected to the flow distributor and having three chambers for supplying the extinguishing agent to nozzles with swirls located on the side and conical surfaces of the irrigation head, providing thermal protection for the shank and the ability to extinguish with finely sprayed water, and to the central nozzle attached to an ejector providing a stream of extinguishing agent of full pressure at the outlet.

Description

The utility model relates to fire extinguishing devices.

The claimed device is a manual fire barrel for extinguishing a fire using various operating modes, using three fire extinguishing modes.

The first mode of operation, in which a fine mist is used; the second mode of operation, in which a combination of finely dispersed water mist and a wide central jet of sprayed water are used; the third mode of operation, in which a jet of full pressure is used.

According to information from an electronic source (https://fireman.club/statyi-polzovateley/vodyanye-ruchnye-pozharnye-stvoly/), the main types of manual fire barrels today are three types of fire barrels.

One of them is a fire barrel of the RSK-50 brand, which is designed to supply compact and finely sprayed jets, with the possibility of blocking the water flow. A fire barrel is included in the fire engine kit.

RS-50 and RS-70 fire barrels are designed to form and direct a compact jet into the fire source. However, the disadvantages of such devices is the lack of a handle to hold the fire barrel. Another disadvantage is the low-quality formation of a spray jet.

All the above disadvantages were taken into account in a more modern model of a manual fire barrel brand Protek, equipped with a handle for holding the barrel. To supply finely dispersed water, a fire barrel of this type is equipped with a variety of interchangeable heads for supplying foam of various densities, which is a significant drawback of fire trunks of this type.

In some cases, a foam generator is used to form the air-mechanical foam.

A special case of such a device is a manual fire barrel brand SRP-50r (http://www.mchs.gov.ru/document/219061), designed to form and direct a continuous and atomized stream of water. The barrel consists of a body with a handle for holding the fire barrel and a water flow regulator, a head for changing the water jet attached to the body, and a connecting device for attaching to the fire hose. The flow rate is adjusted by turning the flow regulator, which allows you to select the optimal mode, the shape of the jet is changed by turning the head to change the water jet. However, obtaining a jet in the form of air-mechanical foam or finely divided water in the form of fog is not provided in the device. For this purpose, a steam generator is used, which, if necessary, is attached to the device. The disadvantage of this device is the lack of the ability to quickly switch mobile modes of jet selection, which is sometimes extremely necessary when extinguishing fires.

This problem is solved in particular in a device known from patent RU 162240 (priority November 13, 2015).

The device described in the patent is a manual fire barrel containing a hollow cylindrical body, a coupling head for connecting a fire hose, a locking-starting device, an output nozzle, and a mechanism for switching extinguishing agent supply modes mounted on the housing behind the nozzle exit.

For this purpose, the device includes a rotary element with a handle mounted on a parallel axis of the housing.

The rotary element of the switching mechanism of the extinguishing agent supply is made in the form of a washer with a set of interchangeable nozzles, the washer is mounted on an axis with the ability to move in a plane perpendicular to the direction of flow of the extinguishing agent.

One of the nozzles has a passage channel tapering in the direction of flow of the extinguishing agent, and the passage channel of the other nozzle is configured to form an extinguishing agent cone at the outlet, each of the nozzles installed in the washer with the possibility of combining its passage channel with the exit nozzle.

The disadvantage of this device is too complex design, requiring the mandatory transfer of the locking and starting device to the “closed” position, and the washer to an intermediate position.

Closest to the claimed device in essence are fire barrels of the JET-FOG type. The main fire extinguishing agent used in extinguishing fires with JET-FOG barrels is water, into which it is possible to add foam-forming additives.

The JET-FOG fire barrel can be used both as a part of stationary fire extinguishing systems with high-pressure finely dispersed water (TRV VD), and as a part of autonomous (mobile) fire extinguishing systems TRV VD.

The JET-FOG fire barrel is assembled from several nodes, which together perform the function of suppressing fires in various situations. To this end, the design provides the ability to quickly adjust the operating mode for fluid flow, pressure and type of spraying applicable for a particular type of fire.

The closest analogue is a device of this type - a fire barrel, described in patent US 6830109 (priority 14.12.2004).

The nozzle head of the fire barrel of US 6830109 has thirteen nozzles for supplying a particular type of jet, one main located in the center and twelve additional nozzles located on the side surface and on the beveled surface of the head. Moreover, in the housing there are two lines for supplying fluid: one for supplying fluid to the central nozzle, the other for supplying fluid to twelve additional nozzles.

By means of a manually adjustable valve for supplying liquid to the device, liquid is supplied to the supply line. The fluid enters the central nozzle, as well as two additional nozzles, and exits the additional nozzles in the form of jets of fine water mist that cover the space behind the irrigation head and from the side. At the outlet of the central nozzle, there is an injector connected to a tube having inlet openings through which ambient air is sucked into the tube to form a foam. Depending on the position of the manually adjustable valve, fire-fighting fluid, preferably water, is supplied to the supply line for the central nozzle and additional nozzles, either together or separately.

When pressure is applied to the supply line for additional nozzles, a stream of water mist is created in which individual drops of liquid have a small volume and the environment exits the nozzle openings. Moreover, jets of fine water mist emanating from nozzles directed forward at an angle reach the environment of the fire source, where by cooling and accompanying the displacement of oxygen they cool the gases present there. In this case, the jets emanating from the nozzles located on the side fill the side and back spaces with fire extinguishing mist, so that an effective temperature reduction is achieved in these areas. This not only prevents the spread of fire to the cooled zone, but also protects fire personnel working with the fire barrel.

When liquid is supplied to the supply line to the central nozzle, a jet of extinguishing fluid mixed with a foaming additive is discharged under high pressure from the central nozzle. The jet enters the injector chamber, where it is additionally twisted and the tube enters, into which air is sucked through the inlet openings of the tube, in accordance with the Venturi effect. This air mixes with a fine mist of fire-fighting liquid, forming a finely porous foam that exits the tube with high kinetic energy and reaches the fire source in the form of a directed compact jet of foam fire extinguisher.

The disadvantage of this design is that the device does not provide a jet of high pressure liquid, which has a long reach and therefore is advisable when approaching the fire, because in the device selected as a prototype, the pressure of the central jet is weakened by mixing air drawn through the openings of the tube.

However, high-pressure liquid jets are necessary for extinguishing when approaching a fire, as well as for flushing small objects and cleaning up areas where damage was caused by fire. Also, such a jet is necessary for the treatment of deep-lying fires.

Another disadvantage of such a device is the inability to supply foam jets of various configurations, since in such a device only two liquid supply lines are provided, one of which is intended for supplying a central jet of foam under high pressure, the other for supplying fine water mist through side nozzles and nozzles, located at an angle.

Another disadvantage of this device is the lack of a handle to hold the barrel, which negatively affects the maneuverability of the trunk and the accuracy of the jet in the fire.

The task in the design of the claimed device was to obtain a device design that provides the possibility of producing three types of jets that extinguish various types of fires, such as a jet of finely dispersed water fog, a combined jet combining a finely dispersed water mist and a narrow central jet of sprayed water, as well as a jet of full pressure.

The technical result is to obtain a device that combines the ability to effectively extinguish fires both at close range and effectively extinguish fires located at a long distance.

In general terms, the claimed device is a fire barrel, including a pressure regulator for supplying a fire extinguishing agent through a mechanical cleaning filter to a flow distributor, consisting of a housing with a cover on which a handle for selecting a flow mode is fixed, and a rotary cylindrical mechanism is located inside the housing forms with horizontally located channels inside it, with the help of which the extinguishing agent enters the irrigation head of a cylindrical shape with a conical The surface formed by the bevel of the angle between the end and cylindrical surfaces of the irrigation head, attached to the flow distributor and having three chambers for supplying the extinguishing agent to nozzles with swirls located on the side and conical surfaces of the irrigation head, providing thermal protection of the stem and the possibility of extinguishing with finely sprayed water , and to the central nozzle attached to the ejector, which provides a full-pressure extinguishing agent stream at the outlet.

The claimed device is illustrated in figure 1 and includes the following nodes:

Flow distributor (1),

Pressure regulator (2),

Flow distributor handle (3),

Irrigation head (4),

Barrel handle (5),

Ejector (6),

Filter (7),

Rotary mechanism of the flow distributor (8),

The figure 2 illustrates the irrigation head, indicating the following positions:

Swirl nozzles (9),

Central nozzle (10),

Swirl nozzle chamber (11),

Central nozzle chamber (12),

Channel supply OTV to the chamber of the side nozzles (13),

Channel supply OTV to the chamber of the Central nozzle (14),

Channel for supplying OTV to the nozzle chamber with swirls (15).

Figure 3 illustrates the location of the nozzle chamber with swirls (11) with respect to the location of the side nozzle (13).

The handle of the barrel (5) is installed at the junction of the Flow Control (1) and the Irrigation Head (4), which makes it possible to conveniently hold the fire barrel without any advantage in any direction, since the center of gravity is between the handle of the barrel and the Pressure Regulator (2 ) At the same time, the barrel handle can be quickly adjusted in the lower 180 ° range both under the left and under the right hand.

Extinguishing agent (OTV) is supplied to the fire barrel through the high pressure hose through the Pressure Regulator (2) and Filter (7), to the Flow Regulator (1) and the Sprinkler Head (4) with an Ejector attached to it (6).

At the entrance to the barrel, a stepless pressure regulator (2) is installed, its functions include regulating the flow rate and pressure of the extinguishing agent until it is completely shut off. Regulation occurs due to the rotation of the regulator around the axis.

The filter (7) performs the function of mechanically cleaning the extinguishing agent entering the Flow Regulator (1). The filter is easy to disassemble for preventive purposes.

By means of the flow controller (1), the following modes are switched:

- Тонкораспыленный водный туман. Данный режим предназначен для тушения пожаров разливов жидкостей, не опасаясь брызг; для пожаротушения объятых пламенем людей; для локализации возгораний на небольших участках. В данном режиме распылители, расположенные перпендикулярно оси ствола, обеспечивают эффективную тепловую защиту ствольщика, если держать пожарный ствол на уровне лица.

- Fine mist of water. This mode is designed to extinguish fires spills of liquids, without fear of spray; for extinguishing flames; for localization of fires in small areas. In this mode, nebulizers located perpendicular to the axis of the barrel provide effective thermal protection for the trunk, if you keep the fire barrel at face level.

- Комбинация тонкораспыленного водного тумана и узкой центральной струи распыленной воды. Данный режим используют на пожарах класса А, особенно наружных пожарах. Этот режим позволяет особенно эффективно использовать ствол в пожаротушении при неблагоприятных погодных условиях. Даже на расстоянии 20 см от распылителя центральной струи попадание под нее не представляет опасности ущерба. Капли струи такого типа очень малого размера, что в сочетании с высокой скоростью распыления воды позволяет точно и эффективно тушить очаги возгорания.

- The combination of finely dispersed water fog and a narrow central jet of sprayed water. This mode is used in class A fires, especially outdoor fires. This mode allows the barrel to be especially effectively used in fire fighting in inclement weather conditions. Even at a distance of 20 cm from the spray of the central jet, falling under it does not pose a risk of damage. Drops of a jet of this type are very small in size, which, combined with a high atomization rate of water, allows you to accurately and efficiently extinguish fires.

- Струя полного напора. Этот тип имеет самый дальний предел досягаемости и потому целесообразен к применению при приближении к огню. Такой тип струи так же подходит для смывания мелких объектов и работ по расчистке участков, где огнем был причинен ущерб. Так же применяется для обработки водным туманом глубоко залегающих возгораний с применением каплей более высокого импульса.

- A jet of full pressure. This type has the farthest reach and is therefore suitable for use when approaching a fire. This type of jet is also suitable for flushing small objects and clearing areas where damage has been caused by fire. It is also used to treat deep-lying fires with a water mist using a drop of a higher momentum.

The distributor of flows (1) consists of a housing in which a rotary mechanism of cylindrical shape (8) is located with channels for supplying a fire extinguishing agent, which performs the function of distribution of flows.

- комбинация тонкораспыленного водного тумана и узкой центральной струи распыленной воды.If a fire extinguisher enters the housing, the Distributor (1) directs the flow into the chamber necessary for operation. The flow distributor (1) is regulated by turning the knob (3) 60 ° clockwise or counterclockwise, depending on the required operating mode. The knob of the regulator (3) is fixed with a bolt in the locking groove on the cover of the “Flow distributor” housing. To translate into one of the three operating modes, you need the regulator knob, with a small radial force from the center of rotation, withdraw from the locking groove and moving it to another mode (60 ° clockwise or counterclockwise) to fix it in another locking groove. In standby mode and storage mode, the control knob (3) is in position

- a combination of finely dispersed water fog and a narrow central jet of sprayed water.

After the flow distributor (1), the fluid is directed into the channels of the irrigation head (4) of a cylindrical shape with a conical surface formed by the bevel of the angle between the end and cylindrical surfaces. On the irrigation head (4) there are nozzles with swirls (9), on a cylindrical surface and working to create a water curtain between the fire source and the shovel, as well as those located on a conical surface, supplying the extinguishing agent to the zone of the fire source.

The irrigation head (4) includes twelve nozzles with swirls (9) and one central nozzle (10).

- тонкораспыленный водный туман, совмещается Канал 3 Оросительной головки (4) с Каналом 15 поворотного механизма распределителя потоков (8) - огнетушащее вещество попадает в Камеру 11 из которой ОТВ (огнетушащее вещество) под высоким давлением проходит через Сопла с завихрителями (9), в следствии чего образуется тонкораспыленный водный туман.When the Knob (3) is in position

- finely sprayed water mist, Channel 3 of the Irrigation head (4) is combined with Channel 15 of the rotary mechanism of the flow distributor (8) - the extinguishing agent enters Chamber 11 from which the OTV (extinguishing agent) passes through high-pressure nozzles with swirls (9), as a result, a fine mist of water forms.

- Струя полного напора, совмещаются каналы Каналы 13 и 14. При этом положении ОТВ поступает по Каналу 13 в Камеру 12 и далее в Центральное сопло (10) создавая тангенциальное завихрение струи. По Каналу 14 огнетушащее вещество попадает напрямую в Центральное сопло (10) увеличивая дальность адресного пожаротушения.When turning the Control Knob (3) to

- The jet of full pressure, the channels of Channels 13 and 14 are combined. With this position, the OTV enters along Channel 13 to Chamber 12 and then to the Central nozzle (10), creating a tangential turbulence of the jet. On Channel 14, the extinguishing agent enters directly into the Central nozzle (10) increasing the range of targeted fire extinguishing.

- комбинация тонкораспыленного водного тумана и узкой центральной струи распыленной воды, Каналы 13 и 15 Оросительной головки (4) совмещены с Каналами 13 и 15 поворотного механизма распределителя потоков цилиндрической формы (8). При этом положении ОТВ поступает по Каналу 13 в Камеру 12 далее в Центральное сопло (10) формируя центральную закрученную струю, и по Каналу 15 в Камеру 11 далее через Сопла с завихрителями (9) формирует тонкораспыленный водный туман. При этом положении регулятора идеально использовать ОТВ с пенообразующими добавками, которое проходя через Центральное сопло (10) и Эжектор (6) вспенивается.When the control knob (3) is in position

- a combination of finely sprayed water fog and a narrow central jet of sprayed water, Channels 13 and 15 of the Irrigation head (4) are combined with Channels 13 and 15 of the rotary mechanism of the cylindrical flow distributor (8). At this position, the OTV flows through Channel 13 to Chamber 12, then to the Central nozzle (10), forming a central swirling stream, and through Channel 15 to Chamber 11, then through a nozzle with swirls (9) it forms a finely dispersed water fog. In this position of the regulator, it is ideal to use OTV with foaming additives, which, when passing through the Central nozzle (10) and Ejector (6), foams.

For more efficient operation of the central jet, an ejector (6) was designed, which is necessary to increase the kinetic energy of the central jet. If a foaming composition is added to the composition of the extinguishing agent (3-6%), then at the exit of the ejector (6) foam is formed from medium to thick foaming, striking a distance of 10-16 meters (horizontal).

When using only an ejector (6), the configuration of the full-pressure jet should be chosen. It is also possible to fight fire at close range with foam in combination with twelve nozzles with swirls (9) in order to maximize the benefits of both finely sprayed water and foam.

All parts of the Fire barrel are available for repair or replacement. The design is convenient for preventive maintenance (PPR).

Claims (1)

A fire barrel including a pressure regulator for supplying a fire extinguishing agent through a mechanical cleaning filter to a flow distributor consisting of a body with a cover on which a handle for selecting a flow mode is fixed, and inside the body there is a rotary cylindrical mechanism with horizontally arranged channels inside by means of which the extinguishing agent enters the irrigation head of a cylindrical shape with a conical surface formed by the bevel of the angle between the end and the irrigation surface of the irrigation head, connected to the flow distributor and having three chambers for supplying the extinguishing agent to nozzles with swirls located on the side and conical surfaces of the irrigation head, providing thermal protection for the shank and the ability to extinguish with finely sprayed water, and to the central nozzle attached to the ejector , providing the output stream of extinguishing agent of full pressure.

Images