WO2024072259A1

WO2024072259A1 - High-pressure fire nozzle

Info

Publication number: WO2024072259A1
Application number: PCT/RU2023/050175
Authority: WO
Inventors: Андрей Александрович КУПФЕР; Норайр Сергеевич МАРТИРОСЯН
Original assignee: Общество С Ограниченной Ответственностью "Фогстрим"
Priority date: 2022-09-27
Filing date: 2023-07-19
Publication date: 2024-04-04

Abstract

The invention relates to fire-fighting equipment, and more particularly to devices adapted for fire-extinguishing, and even more particularly to manual fire nozzles adapted for forming and directing a solid stream or a fog stream, as well as for shutting off supply of a fire-extinguishing composition. The claimed nozzle comprises a body having a fire-extinguishing fluid supply channel formed therein, a hose, and a means for shutting off a flow of fire-extinguishing fluid. The fire-extinguishing fluid supply channel inside the body is divided into two channels. Mounted at the outlet of each channel from said body is a spray nozzle. The means for shutting off a flow of fire-extinguishing fluid is configured in the form of a sleeve mounted in each channel. Said sleeves have two perpendicularly intersecting through-openings. The first of said openings in each sleeve is designed to allow the passage of fire-extinguishing fluid along the channel to a spray nozzle. Mounted in the second opening of the first sleeve is a first rod. Mounted in the second opening of the second sleeve is a second rod. Each of said rods has a through-channel, the axis of which is perpendicular to the axis of the rod. The first rod is mounted so that the axis of the opening in the rod coincides with the axis of the first opening in the first sleeve, and the second rod is mounted so that the axis of the opening in the second rod coincides with the axis of the first opening in the second sleeve. The first and second rods are mounted for rotation about their own axis and allow opening and closing of the first opening in the sleeve. The claimed technical solution provides for improved fire-extinguishing efficiency and faster switching between modes, while also providing for compactness of the device.

Description

High pressure fire nozzle

Technical field

The claimed technical solution generally relates to fire-fighting equipment, in particular to devices intended for extinguishing fires, namely to manual fire nozzles designed to form and direct a compact or sprayed jet, as well as to shut off the supply of the fire extinguishing mixture.

State of the art

A combined manual fire nozzle is known from the prior art (RU 181 3779, published 07/11/2018). The known barrel includes a main body, inside of which a channel is formed, with a handle and a valve for shutting off the flow inside the channel, and there is a removable part, which is removably connected to the main body and consists of a fixed body with a channel formed inside it, communicating with the channel formed inside the main body, the spray head and the casing, wherein the casing is connected to the spray head, as well as to a fixed body with the ability to move relative to it together with the spray head, in the spray head an axial channel and spray channels are formed, directed at an angle to it, and the entrance of which located up to the axial channel, and in the removable part there is a spray mode switching unit, which is located up to the axial channel of the spray head.

Their level of technology is also known for a fire nozzle (RU 162240, published on May 27, 2016). The fire nozzle contains a hollow cylindrical body, a coupling head for connecting a fire hose, a shut-off and starting device, an outlet nozzle and a mechanism for switching fire extinguishing agent supply modes mounted on the body behind the nozzle exit substances, including a rotating element with a handle mounted on an axis parallel to the axis of the housing, characterized in that the rotating element of the mechanism for switching modes of supply of the fire extinguishing agent is made in the form of a washer with a set of replaceable nozzles, the washer is installed on the axis with the ability to move in a plane perpendicular to the direction of movement flow of fire extinguishing agent, one of the nozzles has a passage channel tapering in the direction of movement of the fire extinguishing agent flow, and the passage channel of the other nozzle is configured to form a cone of fire extinguishing agent at the outlet, while each of the nozzles is installed in a washer with the possibility of combining its passage channel with the outlet nozzle . The disadvantages of these analogues are structural complexity, low reliability due to the presence of moving parts for switching spray modes, as well as the inability to create a combined jet mode (compact and sprayed).

The essence of the invention

The technical problem to be solved by the stated technical solution is the creation of a fire nozzle capable of operating in fire extinguishing systems with finely sprayed water with a pressure of up to 14 MPa, while providing several extinguishing modes, which can be switched during the operating mode of the nozzle.

The technical result of the claimed invention is to increase the efficiency of fire extinguishing, speed up switching modes, while ensuring the compactness of the device.

The technical result of the claimed invention is achieved due to the fact that the fire barrel contains a main body, inside of which a fire extinguishing liquid supply channel is formed, a handle, a means for shutting off the flow of fire extinguishing liquid, and the fire extinguishing liquid supply channel inside the housing is divided into two channels, with the outlet of each a nozzle is installed in the channel from the said housing, and the means for blocking the flow of fire extinguishing liquid is made in the form of a cuff installed in each channel, while the mentioned cuffs are made with two through perpendicularly intersecting holes, and the first mentioned hole of each cuff is made with the ability to ensure the passage of the fire extinguishing liquid through channel to the nozzle, and a first rod is installed in the second mentioned hole of the said first cuff, and a second rod is installed in the second mentioned hole of the said second cuff, while both said rods are made with a through channel, the axis of which is perpendicular to the axis of the rod, and the said first rod is installed so in such a way that the axis of the hole made in the rod coincides with the axis of the first hole in the first cuff, and accordingly the said second rod is installed in such a way that the axis of the hole made in the second rod coincides with the axis of the first hole in the second cuff, while the first and the second rod is installed with the possibility of rotation around its axis and, accordingly, with the possibility of opening or closing the first hole of the cuff.

In a particular case of implementation of the claimed technical solution, the nozzles are designed in such a way that one nozzle is configured to provide a continuous jet of fire extinguishing liquid, and the second nozzle is configured to provide a finely atomized jet of fire extinguishing liquid. In a particular case of implementation of the claimed technical solution, sealing rings are additionally installed between the cuffs and nozzles.

In a particular case of implementing the claimed technical solution, each mentioned rod is connected to a control lever.

In a particular case of implementation of the claimed technical solution, it is designed with the ability to independently switch modes during the operating mode of the barrel without turning off the supply of fire extinguishing liquid.

In a particular case of implementing the claimed technical solution, said first rod contains a first control lever, and said second rod contains a second control lever.

Brief description of drawings

Details, features, and advantages of the present invention follow from the following description of embodiments of the claimed technical solution using the drawings, which show:

In fig. 1 is a sketch view of the design of the claimed device with spaced apart structural elements;

In fig. 2 - general view;

In fig. 3 - general view;

In fig. 4 - nozzle of finely atomized fire extinguishing liquid (FAF);

In fig. 5 - jet nozzle;

In fig. 6 is a sketch view of the design of the claimed device with spaced apart structural elements.

In the figures, the following structural elements are indicated by numbers:

1 - handle; 2 - body; 3 - rear cover; 4 - rod; 5 - cuff; 6 - glass; 7 - finely sprayed water nozzle (TPW); 8 - jet nozzle; 9 - control lever; 10 - pin; 11 - screw; 12 - nut; 13 - rod sealing ring; 14 - sealing ring of injectors; 15 - rod sealing ring; 16 - sealing ring of the rear cover; 17 - nut; 18 - coupling; 19 - fire hose with fitting; 20 - channel; 21 - channel of the TRV nozzle; 22 - nozzle channel; 23 - rod; 24 - control lever; 25 - glass; 26 - cuff; 27 - holes (nozzles) of the nozzle.

Disclosure of the Invention

The combined manual fire nozzle consists of a main body (2), inside of which a channel (20) is formed for supplying the fire extinguishing agent.

The housing (2) is made with a back cover (3). The rear cover is made with a through hole, while the body (2) is connected through the rear wall to a hollow handle, the cavity of which is a continuation of the channel (20). In this case, the handle is connected to a fire hose (19). The handle is connected to the fire hydrant via fitting, thereby ensuring the passage of fire extinguishing liquid from the fire hose (19) into the cavity of the handle (1) and, accordingly, into the channel (20).

An O-ring (16) is additionally installed between the body (2) and the back cover (3).

In this case, the channel (20) inside the housing is divided into two channels - channel (21) of the expansion valve nozzle and channel (22) of the nozzle. In this case, a cuff (5) and (26) are installed in the channel (21) of the expansion valve nozzle and the channel (22) of the jet nozzle, respectively. At the same time, at the outlet of the channel (21) of the expansion valve nozzle and at the outlet of the channel (22) in the housing (2), the expansion valve nozzle (7) and the jet nozzle (8) are installed, respectively.

The nozzle (8) for forming a continuous jet is designed to form a compact laminar flow of fire extinguishing agent, which is achieved by the fact that the formation of a compact jet occurs from several parallel jets, which increases its range and extinguishing efficiency. The number of holes (27) is from seven to nine, while the diameter of the holes (27) is from 1.2 to 1.8 mm and is designed to provide water flow at a minimum operating pressure of 4 MPa 1.0 l/sec and a jet length of 20 m.

The nozzle (7) for forming a finely atomized jet is designed to produce a finely dispersed fog-like conical torch of fire extinguishing agent, which is achieved by the fact that the axes of the holes (nozzles) are inclined relative to the cross section at an angle of 10-50 degrees. The number of holes (27) ranges from eleven to fifteen and the diameter of the holes (27) from 0.8 to 1.0 mm is designed to ensure the flow rate of fire extinguishing liquid at a minimum operating pressure of 4 MPa 0.5-0.6 l/sec and jet length 6 m.

Thanks to the use of these nozzles, the fire nozzle has low consumption.

In this case, sealing rings (14) are additionally installed between the cuffs and nozzles.

Moreover, the design of one nozzle (8) provides a continuous stream of fire extinguishing liquid, and the design of the TRV nozzle (7) provides a finely atomized stream of fire extinguishing liquid. This feature of the implementation of the stated technical solution ensures increased fire extinguishing efficiency.

The cuffs (5) and (26) are made of a cylindrical shape and contain two through, perpendicularly intersecting longitudinal and transverse holes, while the longitudinal hole ensures the passage of the fire extinguishing liquid through the channel (21 and 22) to the nozzles (7) and (8), respectively. And a rod (4) and a rod (23) are installed in the transverse hole of each cuff. In this case, holes are made in the side walls of the housing (2), the axes of which are perpendicular to the channels (21) and (22), respectively. IN the said holes are installed so that the rod (4) and the rod (23) can be rotated around their axis. Thus, the rod (4) and the rod (23) interact with the cuff installed in the channel (21) and in the channel (22), respectively.

In this case, the rod (4 and 23) is made with a through channel, the axis of which is perpendicular to the axis of the rod (4 and 23). When the rod (4 and 23) interacts with the cuffs installed in the channel (21) and in the channel (22), respectively, it is possible to open or close the longitudinal channel of the cuff, and consequently, open and close the channel (21) and (22), respectively.

The possibility of opening and closing the mentioned longitudinal channels of the cuffs (5) is ensured by the fact that the axis of the channel made in each rod, in the open position, coincides with the axis of the longitudinal channel of the cuff, and accordingly, when the rod is rotated around its axis, either complete or partial blocking of the channel is ensured .

In this case, the rod (4 and 21) is installed by means of a glass (6) and a glass (25), respectively, fixed on the outside of the body (2) by means of a screw connection (11).

Moreover, between each mentioned glass (6 and 25) and the body (2) an additional sealing ring (15) is installed.

Each said rod (4) and (23) is connected to a control lever (9) and (24). In this way, the possibility of separate manual opening or closing of the mentioned channels is achieved, and thus the possibility of implementing different fire extinguishing modes is ensured.

In this case, the lever (9) and (24) are secured respectively to the rod (4) and (23) by means of pins (10) and nuts (17 and 12).

Moreover, between each mentioned glass (6 and 25) and the lever (9) and (24), respectively, an o-ring (13) is additionally installed.

Thus, the claimed design of the fire nozzle provides several extinguishing modes, namely: extinguishing with a continuous jet, and extinguishing with a fine spray jet, and extinguishing with a combined mode, combining extinguishing with a fine spray jet and a continuous jet.

Moreover, the claimed design provides the ability to switch modes during the operating mode of the barrel without turning off the supply of fire extinguishing liquid.

Another equally important feature is the size of the fireman’s barrel, which allows you to combine a combined crane system in one body. This feature allows you to compactly organize the space inside the fire cabinet, and the compact size provides more convenient coverage and intuitive further ergonomic use. Applied in The two-cuff design allows these valves to be hydraulically independent, despite the fact that they are located inside the same body. And thus two independent modes are achieved, which can be turned on in turn and simultaneously to implement a combined operating mode.

Claims

Claim

1. A fire nozzle containing: a main body, inside of which a fire extinguishing liquid supply channel is formed, a handle, a means for shutting off the flow of fire extinguishing liquid, characterized in that the fire extinguishing liquid supply channel inside the housing is divided into two channels, and at the exit of each channel from said housing a nozzle is installed, and the means for blocking the flow of fire extinguishing liquid is made in the form of a cuff installed in each channel, wherein the mentioned cuffs are made with two through perpendicularly intersecting holes, and the first mentioned hole of each cuff is made with the ability to ensure the passage of the fire extinguishing liquid through the channel to the nozzle, and a first rod is installed in the second-mentioned hole of the said first cuff, and a second rod is installed in the second-mentioned hole of the said second cuff, and both said rods are made with a through channel, the axis of which is perpendicular to the axis of the rod, and the said first rod is installed in such a way that the axis the hole made in the rod coincides with the axis of the first hole in the first cuff, and accordingly the said second rod is installed in such a way that the axis of the hole made in the second rod coincides with the axis of the first hole in the second cuff, while the first and second rod are installed with the possibility of rotation around its axis and, accordingly, the possibility of opening or closing the first hole of the cuff.

2. The barrel according to claim 1, characterized in that the nozzles are designed in such a way that one nozzle is configured to provide a continuous jet of fire extinguishing liquid, and the second nozzle is configured to provide a finely sprayed jet of fire extinguishing liquid.

3. Barrel according to claim 1, characterized in that sealing rings are additionally installed between the cuffs and nozzles.

4. The barrel according to claim 1, characterized in that each said rod is connected to a control lever.

5. The barrel according to claim 1, characterized in that it is designed with the ability to independently switch modes during the operating mode of the barrel without turning off the supply of fire extinguishing liquid.

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6. The barrel according to claim 1, characterized in that said first rod contains a first control lever, and said second rod contains a second control lever.