RU68907U1 - EXTINGUISHING FIRE EXTINGUISHING SYSTEM FOR FINE-SPRAYED WATER AND NODE FORMING A GAS-FLUID MIXTURE INSTALLATION FOR EXTINGUISHING A FIRE-SPRAYED WATER FIRE EXTINGUISHING - Google Patents

Abstract

Utility models relate to fire fighting equipment, namely, to the design of a fire extinguishing installation of finely sprayed water, which can be used to protect enclosed spaces and fire hazardous objects, and to the design of a unit for forming a gas-liquid mixture of a facility to extinguish a fire by finely sprayed water. The essence of the first utility model is that a device for extinguishing a fire with finely sprayed water contains a container with a fire extinguishing liquid, a locking and starting device connected to an alarm device, a supply pipe connected to sprinklers installed in a protected room, a container with working gas, a siphon tube, the inlet end of which is lowered into a container with a fire extinguishing liquid, and a gas-liquid mixture forming unit, made in the form of an adapter with a gas chamber, in which there are cylindrical the shape of the gas chamber, the inlet chamber and the mixing chamber, the axes of which are located in the same plane, while the axes of the inlet chamber and the mixing chamber are parallel to each other, the inlet chamber is in communication with the gas chamber, the axis of which is perpendicular to the axis of the inlet chamber, the mixing chamber is communicated through the first opening with the inlet chamber, which through the second hole is in communication with the tank with a fire extinguishing liquid, the node for forming a gas-liquid mixture is hermetically fixed in the neck of the tank with a fire extinguishing liquid, to the camera Shivani side with extinguishing fluid container is attached the outlet end of the siphon tube and the gas chamber is sealed by a gas hose to a vessel containing a working gas, wherein the mixing chamber is sealingly connected to the inlet end of the supply line. The essence of the second utility model is that the node for forming the gas-liquid mixture of the fire extinguishing device is made in the form of an adapter with a gas chamber, in which there is a cylindrical-shaped gas chamber, an inlet chamber and a mixing chamber, the axes of which are located in the same plane, with the axes the inlet chamber and the mixing chamber are parallel to each other, the inlet chamber is in communication with the gas chamber, the axis of which is perpendicular to the axis of the inlet chamber, the mixing chamber is communicated through the first opening with one camera, which has a second hole for communication with a container with a fire extinguishing liquid. The technical result is to reduce the consumption of the original extinguishing agents and reduce the time required to eliminate the fire.

Description

Utility models relate to fire fighting equipment, namely, to the design of a fire extinguishing installation of finely sprayed water, which can be used to protect enclosed spaces and fire hazardous objects, and to the design of a unit for forming a gas-liquid mixture of a facility to extinguish a fire by finely sprayed water.

Known design sprinkler installation for extinguishing fires in enclosed spaces, a description of which is given in the book. M.G.Shuvalova Fundamentals of firefighting. - M .: Stroyizdat. - 1983. - S.180-187. The installation comprises a suction pipe, placed at the inlet end into a reservoir, equipped with a pump, the outlet of which through a non-return valve and a gate valve is connected to a system of serially connected pipelines, including a supply pipe with a control and signal valve, a supply pipe and a distribution network with irrigators located in a protected room. In addition, the installation contains an automatic water feeder that supplies irrigators with water during the first 5 minutes of the installation. The installation is activated as a result of the operation of fusible locks of irrigators that respond to an increase in room temperature. The sprinklers open, as a result of which the pressure in the distribution network decreases, which triggers the control-signal valve, and water begins to flow to the sprinklers first from the automatic water feeder, and then, after turning on the pump, from the reservoir.

The disadvantages of the installation are high water consumption and the need for constant maintenance of the supply and distribution pipelines under pressure to ensure the operation of the control and signal valve. In order to avoid false triggering of the installation in the event of malfunctions in the distribution network, it is necessary to periodically check the integrity of the pipelines, the correct readings of control devices, and

routine maintenance, which leads to increased operating costs. In addition, the scope of the installation is limited. So, its use is ineffective if it is necessary to protect premises with a complex layout, because this significantly complicates the distribution network.

Known for an improved installation with sprinkler sprinklers according to ed. testimonial. USSR No. 1102615, IPC A62C 35/00, publication July 15, 84. The installation is driven by a compressed gas control unit, which enters the distribution network when the sprinklers are triggered, after which the control unit opens, connecting the feed pipe to the main pipeline, and water enters the distribution network.

The disadvantage of the installation is its inertia, which leads to an increase in the time to eliminate the fire.

Also known installation by ed. testimonial. USSR No. 1077133, IPC A62C 35/20, publication 04/23/84, designed to extinguish a fire in rack warehouses. This installation uses sprinkler sprinklers with parabolic deflectors, crushing water jets and reflecting part of the jets up to the perforated panels, upon collision with which re-crushing of droplets and uniform distribution of water along the protected surface (shelf shelves) takes place. The specified installation provides effective fire extinguishing while reducing water consumption due to the finely dispersed spraying of water and its uniform distribution in the inter-rack space.

The disadvantage of the installation is the limited use due to the presence of special structural elements (perforated panels), rigidly connected with the guarded object.

The closest analogue adopted as a prototype of the invention is a fire extinguishing installation according to ed. testimonial. USSR No. 607575, IPC A62C 35/58, publication 04/25/78. The fire extinguishing installation contains a container with a fire extinguishing liquid, a shut-off and starting device connected to an alarm device, a supply pipe connected to sprinklers installed in a protected room, a container with working gas, a siphon tube, the inlet end of which is lowered into a container with a fire extinguishing liquid,

and a node for forming a gas-liquid mixture, made in the form of an adapter with a gas chamber.

The disadvantage of the prototype device is the high consumption of the original extinguishing substances and the lack of installation efficiency when fighting a fire, especially in a complex layout.

The task of the utility model group is to increase the efficiency of fire fighting while reducing the consumption of the initial extinguishing agents and the time required to eliminate the fire.

The essence of the first utility model is that a device for extinguishing a fire with finely sprayed water contains a container with a fire extinguishing liquid, a locking and starting device connected to an alarm device, a supply pipe connected to sprinklers installed in a protected room, a container with working gas, a siphon tube, the inlet end of which is lowered into a container with a fire extinguishing liquid, and a gas-liquid mixture forming unit, made in the form of an adapter with a gas chamber, in which there are cylindrical the shape of the gas chamber, the inlet chamber and the mixing chamber, the axes of which are located in the same plane, while the axes of the inlet chamber and the mixing chamber are parallel to each other, the inlet chamber is in communication with the gas chamber, the axis of which is perpendicular to the axis of the inlet chamber, the mixing chamber is communicated through the first opening with the inlet chamber, which through the second hole is in communication with the tank with a fire extinguishing liquid, the unit for forming a gas-liquid mixture is hermetically fixed in the neck of the tank with a fire extinguishing liquid, to the camera see Shivani side with extinguishing fluid container is attached the outlet end of the siphon tube and the gas chamber is sealed by a gas hose to a vessel containing a working gas, wherein the mixing chamber is sealingly connected to the inlet end of the supply line.

In addition, in the proposed installation for extinguishing a fire with finely sprayed water:

the diameter of the inlet chamber is 10 ÷ 20 mm, and the diameter of the mixing chamber is 12 ÷ 35 mm;

the diameter of the first hole is 1 ÷ 10 mm, and the diameter of the second hole is 0.8 ÷ 1.4 of the diameter of the first hole;

stabilizers of the plug mode of gas-liquid mixture flow were installed in front of the sprinklers;

extinguishing liquid is pure water or water with additives; and the working gas is carbon dioxide, air or nitrogen;

the tank with fire extinguishing liquid is equipped with a connector for connecting to the pipeline of the water supply system.

The essence of the second utility model is that the node for forming the gas-liquid mixture of the fire extinguishing device is made in the form of an adapter with a gas chamber, in which there is a cylindrical-shaped gas chamber, an inlet chamber and a mixing chamber, the axes of which are located in the same plane, with the axes the inlet chamber and the mixing chamber are parallel to each other, the inlet chamber is in communication with a gas chamber, the axis of which is perpendicular to the axis of the inlet chamber, the mixing chamber is communicated through the first opening with one camera, which has a second hole for communication with a container with a fire extinguishing liquid.

In addition, in the proposed site for the formation of a gas-liquid mixture installation for extinguishing a fire with finely sprayed water:

the diameter of the inlet chamber is 10 ÷ 20 mm, and the diameter of the mixing chamber is 12 ÷ 35 mm;

the diameter of the first hole is 1 ÷ 10 mm, and the diameter of the second hole is 0.8 ÷ 1.4 of the diameter of the first hole.

The essence of utility models is illustrated by drawings, on which:

figure 1 - installation diagram for extinguishing a fire with finely sprayed water;

figure 2 - connection diagram of the node forming a gas-liquid mixture;

figure 3 - design of the node forming a gas-liquid mixture.

Figure 1-3 marked:

1 - capacity with fire extinguishing liquid;

2 - tank with working gas;

3 - a gas hose;

4 - locking and starting device;

5 - signaling device;

6 - node forming a gas-liquid mixture;

7 - feed pipe;

8 - sprinklers;

9 - stabilizers plug mode flow of gas-liquid mixture;

10 - connector for connecting to the pipeline of the water supply system;

11 - pipeline water system;

12 - input camera;

13 - a stub;

14 - mixing chamber;

15 - gas chamber;

16 - the first hole;

17 - the second hole;

18 - siphon tube;

19 - the neck of the tank 1 with a fire extinguishing fluid.

A device for extinguishing a fire with finely sprayed water contains a container 1 with a fire extinguishing liquid, which is pure water or water with additives, a container 2 with a working gas, equipped with a gas hose 3 and a locking and starting device 4 of an electric, thermomechanical or other type, which is connected to the signaling device 5, installed in the protected room, the node 6 forming a gas-liquid mixture, the supply pipe 7, connected to the sprinklers 8 installed in the protected room. Before sprinklers 8 installed stabilizers 9 plug mode (see figure 1).

The tank 1 is a vessel with a neck 19. To replenish the tank with water, it is equipped with a connector 10 for connecting to the pipe 11 of the water system.

The node 6 for the formation of a gas-liquid mixture, the design of which is shown in figure 3, and the connection diagram in figure 2, is made in the form of an adapter, in which the inlet chamber 12 and the mixing chamber 14 are horizontally located

the gas chamber 15 is vertically located. The chambers 12-14 have a cylindrical shape. The mixing chamber 14 is placed, in particular, under the inlet chamber 12 and through the first hole 16 with a diameter of d _{1 is in} communication with the inlet chamber 12, which, through the second hole 17 with a diameter of d _{2, is in} communication with the tank 1 with a fire extinguishing liquid.

The axes of all cameras are located in one plane. In this case, the axes of the inlet chamber 12 and the mixing chamber 14 are parallel to each other. The axis of the gas chamber 15 is perpendicular to the axis of the inlet chamber 12, which is hermetically sealed with a plug 13.

The dimensions of the diameter d _{in the} input chamber 12, the diameter d _{cm of} the mixing chamber 14 and the diameters d ₁ , d _{2 of the} holes 16, 17 satisfy the relations:

The node 6 forming a gas-liquid mixture is hermetically fixed in the neck 19 of the tank 1 with a fire extinguishing liquid. The output end of the siphon tube 18 is attached to the mixing chamber 14 from the side of the tank 1 with fire extinguishing liquid, the inlet end of which is lowered into the tank 1 with fire extinguishing liquid. The gas chamber 15 is hermetically connected by means of a gas hose 3 with a capacity of 2 to a working gas, for example, carbon dioxide, air or nitrogen. The mixing chamber 14 is hermetically connected to the inlet end of the supply pipe 7. In this case, the sealed connections, as a rule, are made in the form of sealed threaded connections.

In preparation for operation, the installations equip the protected room with the necessary number of sprinklers 8, install an alarm 5, made in the form of a sensor that responds to a rise in temperature in the room, the appearance of smoke, etc. At the exit from the premises of the supply pipe 7, capacity 1 is installed and connected via a connector 10 to pipeline 11

water supply network. A container 2 with working gas is also installed there. Connect the locking-starting device 4 to the circuit of the signaling device 5 and connect the hose 3 to the tank 2. Then, the components of the installation are connected via the gas-liquid mixture forming unit 6. For this, a siphon tube 18 is screwed into the mixing chamber 14, introduced into the container 1, after which the gas-liquid mixture forming unit 6 is screwed into the neck 19 of the container 1. Then the outlet end of the gas hose 3 is connected to the gas chamber 15 of the assembly 6, and the inlet end of the supply pipe 7 - to the mixing chamber 14. Through the connector 10 fill the tank 1 with water. The installation is ready to go.

When a fire occurs in the guarded room, the alarm 5 is activated and the locking and starting device 4 is activated, which allows access to the working gas in the gas chamber 15 of the gas-liquid mixture forming unit 6. Under the pressure of the gas jet formed by the hole 17, water is displaced from the tank 1, and it enters the mixing chamber 14 through a siphon tube 18. Under the influence of another gas stream formed by the hole 16, in the mixing chamber 14, drops of the initial water stream are repeatedly crushed, and the resulting gas-liquid mixture of water with carbon dioxide is supplied to the sprinklers 8 through the supply pipe 7, is sprayed in the room, quickly filling its volume, isolates and cools the source of fire, and burning ceases.

In this case, the selected ratios are the range of absolute sizes (1) - (4) that form the gas jets, are determined experimentally and satisfy the condition of sufficient head for pumping water from tank 1, on the one hand, and the condition for achieving the optimal concentration of components of the fire extinguishing mixture, on the other.

Thus, the proposed installation can significantly reduce the flow rate of the original extinguishing agents due to the formation of a finely dispersed gas-liquid mixture and reduce the time required to eliminate the fire due to volumetric filling of the room, regardless of the complexity of its layout.

The installation can also be used to protect individual objects, in particular electrical installations, drive mechanisms, etc., when ignited, carbon dioxide is usually used to eliminate the fire.

The proposed unit for the formation of a gas-liquid mixture is simple and reliable and can be used as part of other fire extinguishing installations.

The installation does not require significant energy resources, is easy to maintain, and more reliable than its counterparts due to the separation of the incentive circuit that drives the locking and starting device from the distribution network of the pipeline supplying the extinguishing agent. In the simplest case, the locking-starting device can be made in the form of a conventional handle, and the installation can be manually actuated by an alarm signal from an object.

The industrial applicability of the useful group is determined by the fact that for the manufacture of the installation and the unit for forming a gas-liquid mixture, ordinary materials and components are used, the installation of which can be performed according to the above description and drawings, traditional fire extinguishing agents are used as components for the formation of a gas-liquid mixture, which makes it possible to use the proposed installation for protection against fires, both of individual objects and premises, the proposed gas-liquid formation unit oh mixture can be used as part of other fire extinguishing installations.

Claims (9)

1. Installation for extinguishing a fire, containing a container with a fire extinguishing liquid, a container with working gas, a shut-off and starting device, a supply pipe connected to sprinklers installed in a protected room, a siphon tube, the inlet end of which is lowered into a container with a fire extinguishing liquid, and a unit the formation of a gas-liquid mixture, made in the form of an adapter with a gas chamber, characterized in that the adapter has a cylindrical gas chamber, an inlet chamber and a mixing chamber, the axes of which are located are in the same plane, while the axes of the inlet chamber and the mixing chamber are parallel to each other, the inlet chamber is in communication with the gas chamber, the mixing chamber is communicated through the first opening to the inlet chamber, which is in communication with the container with the extinguishing liquid through the second opening, the gas-liquid mixture forming unit is hermetically sealed fixed in the neck of the tank with a fire extinguishing liquid, the outlet end of the siphon tube is attached to the mixing chamber on the side of the tank with a fire extinguishing liquid, and the gas chamber is hermetically sealed dinene through a gas hose with a container with a working gas, and the mixing chamber is hermetically connected to the inlet end of the supply pipe. 2. The installation according to claim 1, characterized in that the diameter of the input chamber is 10 ÷ 20 mm, and the diameter of the mixing chamber is 12 ÷ 35 mm 3. Installation according to claim 1, characterized in that the diameter of the first hole is 1 ÷ 10 mm, and the diameter of the second hole is 0.8 ÷ 1.4 of the diameter of the first hole. 4. Installation according to claim 1, characterized in that in front of the sprinklers, stabilizers of the plug mode of gas-liquid mixture flow are installed. 5. Installation according to claim 1, characterized in that the working gas is carbon dioxide, air or nitrogen. 6. Installation according to claim 1, characterized in that the tank with a fire extinguishing liquid is equipped with a connector for connecting to the pipeline of the water supply system. 7. A node for forming a gas-liquid mixture of a fire extinguishing device, made in the form of an adapter with a gas chamber, characterized in that the adapter has a cylindrical gas chamber, an inlet chamber and a mixing chamber, the axes of which are located in the same plane, while the axis of the inlet chamber and the mixing chambers are parallel to each other, the inlet chamber is in communication with the gas chamber, the mixing chamber is communicated by means of a first opening with an inlet chamber, which has a second opening for communication with the tank extinguishing liquid. 8. The node for forming a gas-liquid mixture according to claim 7, characterized in that the diameter of the inlet chamber is 10 ÷ 20 mm, and the diameter of the mixing chamber is 12 ÷ 35 mm. 9. The node for forming a gas-liquid mixture according to claim 7, characterized in that the diameter of the first hole is 1 ÷ 10 mm, and the diameter of the second hole is 0.8 ÷ 1.4 of the diameter of the first hole.