RU2514488C1 - Sprinkler fire-extinguishing system - Google Patents

Abstract

FIELD: fire-prevention facilities.SUBSTANCE: in the sprinkler fire-extinguishing system consisting of a network of main and distribution pipelines constantly filled with liquid fire-extinguishing agent with sprinklers, the water-supply source which is a water tank and a water intake system with filter and pump, two automatic water feeders, a housing of the sprinkler is made in the form of fitting with the through opening and the threaded part, at that in the through opening of the fitting there is a sleeve with the filter mesh fixed on it, at that the threaded fitting through the axisymmetric bracket consisting of two vertical volumetric reinforcement ribs and two inclined prismatic ribs rigidly connected to them, is rigidly connected to the hollow cylindrical sleeve with the internal thread interacting with the clamping screw which through the elastic pad presses the glass bulb to the poppet valve, at that the glass bulb is supported on the valve through the elastic pad attached on the outer end surface of the valve which is connected through the chain to one of the volumetric reinforcement ribs, and on the other side to the sleeve perpendicular to its axis a spray device in the form of a socket with a central opening and the lobes located relative to each other with a gap is attached with the screws.EFFECT: improvement of efficiency of fire extinguishing due to the introduction of high-speed elements in the overall chain of automatic fire-extinguishing system.2 dwg

Description

The invention relates to fire fighting equipment.

The closest object to the claimed technical essence is a fire extinguishing device containing a housing and a distribution sleeve with holes, one of which is made in the form of a slit mounted for rotation relative to the housing. Using the rotation of the casing, one of the openings is installed opposite the outlet of the housing, providing the required mode of supply of the extinguishing fluid to the fire (French patent No. 2309283, B05B 1/20, 1976 - prototype).

The disadvantage of the prototype is the inability to create an optimal flow structure during the formation of long film curtains due to the large turbulization of the flow at the exit of the slit hole and the disruption of the flow continuity while the flow of the outflowing fluid from the said hole is removed.

EFFECT: increased fire extinguishing efficiency due to the introduction of high-speed elements in the general circuit of an automatic fire extinguishing system.

This is achieved by the fact that in a sprinkler fire extinguishing system, consisting of a network of trunk and distribution pipelines, constantly filled with a liquid fire extinguishing composition with sprinkler sprinklers, a water supply source, which is a water tank and a water intake system with a filter and a pump, two automatic water feeders, a sprinkler sprinkler body made in the form of a fitting with a through hole and a threaded part, and in the through hole of the fitting there is a sleeve with a filter attached to it mesh, the threaded fitting through an axisymmetric bracket consisting of two vertical volumetric stiffening ribs and rigidly connected two inclined prismatic ribs, is rigidly connected to a hollow cylindrical sleeve with an internal thread that interacts with a clamping screw, which compresses the glass flask through an elastic gasket to the poppet valve, while the glass bulb rests on the valve through an elastic gasket mounted on the outer end surface of the valve, which through chains and is connected with one of the volume stiffeners, and on the other hand, a spray device in the form of a socket with a central hole and petals located relative to each other with a gap is attached to the sleeve perpendicular to its axis.

Figure 1 presents a diagram of a sprinkler fire extinguishing system, figure 2 is a diagram of a sprinkler sprinkler.

Sprinkler fire extinguishing system (figure 1) consists of a network of trunk 8 and distribution 6 pipelines, constantly filled with liquid fire extinguishing composition with sprinkler sprinklers 7, and is intended for local extinguishing and localization of the fire source in the room. The system consists of a water supply source, which is a tank 1 with water and a water intake system with a filter and pump 2. For the trouble-free and reliable operation of the main supply main network 8, the device has two automatic water feeders 3 (pneumatic tank) and 4 - (water tank). A secondary highway 5 with rows of distribution pipelines 6 equipped with sprinkler sprinklers 7 originates from the main network along the production premises of the building. The signal turbine 9 is installed in the main supply line.

Sprinkler sprinkler (figure 2) contains a housing made in the form of a nozzle 10 with a through hole and a threaded part (external thread — by means of a threaded part, the sprinkler is mounted on distribution pipelines). In the through hole of the nozzle 10 is a sleeve 20 with a filter screen 21 fixed to it.

The threaded fitting 10 by means of an axisymmetric bracket consisting of two vertical volumetric stiffening ribs 12 and two tilted prismatic ribs 22 rigidly connected to them is rigidly connected to the hollow cylindrical sleeve 11 with an internal thread interacting with the clamping screw 15, which compresses the glass through the elastic gasket 14 the flask 13 to the poppet valve 17. The glass bulb 13 is supported on the valve 17 through an elastic gasket 16, mounted on the outer end surface of the valve 17, which in turn abuts against valve seat 18 through an elastic gasket. The poppet valve 17 is connected through a chain 19 to one of the three-dimensional stiffening ribs 12, which allows 11 to recharge the sprinkler sprinkler, since the valve remains on the sprinkler after operation.

On the other hand, a spray device 23 is attached to the sleeve 11 perpendicular to its axis by means of screws 24 in the form of a socket with a central hole 25 and petals (not shown) located relative to each other with a gap.

Sprinkler fire extinguishing system operates as follows.

In the production building, a system is installed consisting of a water supply source, which is a tank 1 with water and a water intake system with a filter and pump 2. Then, a network of trunk 8 and distribution 6 pipelines is mounted on which the deluge heads 7 are fixed and the network is constantly filled with liquid extinguishing agent designed for local extinguishing and localization of the fire in the room.

For uninterrupted and reliable operation of the main supply main network 8, two automatic water feeders 3 (pneumatic tank) and 4 (water tank) are installed in the device. The main network 8 is connected to the secondary line 5 with rows of distribution pipelines 6 equipped with sprinkler sprinklers 7, and a signal turbine 9 is installed in the main supply line 8.

Sprinkler sprinkler works as follows.

Glass bulb 13 is an element of automatic response to exceeding a predetermined room temperature, which is made in the form of a glass bulb 13 with a diameter of 5 mm, which is a thermal lock. Depending on the operating temperature, the liquid in the flask has a certain color: 68 ° C - red, 57 ° C - orange. The response temperature is selected depending on the category of protected premises. In case of removal of the thermally sensitive element - flask - from the proposed sprinkler, it automatically becomes a deluge sprinkler.

Sprinklers can be made of the following types: with a flat outlet, which are installed vertically with the outlet down; with a concave socket - are installed vertically upwards and universal - are installed both with the socket down and the socket up. All of them are automatic flask type standard response sprinklers.

Sprinkler sprinklers are placed on distribution pipelines (not shown) of sprinkler installations under the ceiling of the room from the condition of irrigation with one sprinkler 9 ÷ 12 m ² floor area. It is possible to use with the following types of extinguishing agent: water, aqueous solutions, foam. The multiplicity of the foam is 13.2%, the concentration is 3%. As a foaming agent in such fire extinguishing systems, a fluorosynthetic foaming agent of the "Multipena" type is used. It also works on a 6% aqueous solution of fluoride-containing foaming agent "Sublayer" under conditions of smoke in the room.

Claims (1)

Sprinkler fire extinguishing system, consisting of a network of main and distribution pipelines, constantly filled with liquid fire extinguishing composition with sprinkler sprinklers, a water supply source, which is a water tank and a water intake system with a filter and a pump, two automatic water feeders, characterized in that the sprinkler sprinkler body in the form of a fitting with a through hole and a threaded part, and in the through hole of the fitting there is a sleeve with a filter a threaded fitting, by means of an axisymmetric bracket, consisting of two vertical volumetric stiffening ribs and two inclined prismatic ribs rigidly connected to them, is rigidly connected to a hollow cylindrical sleeve with an internal thread that interacts with a clamping screw, which presses the glass flask through the elastic gasket to to a poppet valve, the glass bulb rests on the valve through an elastic gasket mounted on the outer end surface of the valve, which, through a chain with Yazan with one volume of ribs and, on the other hand to the hub perpendicularly to its axis is fixed with screws spray device in the form of a socket with a central bore and petals arranged relative to each other with a gap.

Images