RU3692U1 - WATER FIRE EXTINGUISHING DEVICE - Google Patents

Abstract

A device for automatically activating a water fire extinguishing installation, comprising a motive chamber, a valve initiating a line, characterized in that the motive chamber is connected to a pressure channel of a limited cross section, and the initiating line is hydraulic and contains sprinklers, an electric contact pressure gauge and a calibration test valve, and the cross-sectional area the channel does not exceed half the cross section of the conditional passage of the initiating line.

Description

AUTOMATIC START-UP DEVICE

INSTALLATION water extinguishing) FIRE FIGHTING

The utility model relates to fire fighting equipment and can be used in the coal industry in combination with the installation of V0.1SCHNE fire extinguishing of tape conveyors (UVPK). A UV1Zh automatic switch-on device is known (USSR Municipal Unitary Enterprise, the Krasnoarmeysky plant of means for fire fighting) Installation of fire extinguishing, Operation manual UShZh 00000 РЭ, 1987), containing a motive chamber, a valve and an electric starting device with a pusher and electric starting initiators (IIC detectors).

A disadvantage of the known device is the low reliability and complexity of the design, due to the large number of electrical and mechanical catches, unreasonable laboriousness of the calibration start-up of the installation, the lack of continuous monitoring of the integrity of the electrical jaoiiBaviiipB inclusion

The proposed technical solution allows to increase the reliability of the operation of the air-blasting device, simplify the design of the automatic switch-on device and, to minimize the complexity of the test start-up of the installation. We achieve this goal by replacing the electric start-up device in the UVKP automatic start-up device with a hydraulic initiating line with sprinklers (sprinklers with thermal locks) located in the zones of expected heating. remove the valve from the stimulation chamber of the UVOK, limit the area of the cross-section of the channel through which water flows from the pressure chamber into the stimulation chamber and sprinklers are connected directly to the next pipeline of the initiating line,

For a test start, we equip the initiating line with a crane connecting it to the atmosphere, and for monitoring the condition with a pressure gauge.

The essence of the utility model is illustrated by drawings, where in Fig. 1 a device for automatically switching on UVPC is shown, and in Fig. 2 a diagram for installing a UVZH with a device for automatically switching on.

The utility model contains (FIG. 1) a UVPK induction chamber with cavities 9, II, a channel of limited cross-section I and a single line to it containing a pressure gauge 5, a valve 6 and a pipe 13 with sprinklers 14 (FIG. 2),

The device operates as follows. Water from the fire pipe 19 (Fig. 2) through the inlet 20 passes into the pressure chamber 15 and through the pipe 7 (Fig. 1) into the annular groove 8 and then through the connecting channels and a channel of limited cross section 1 to the cavities 9 and II of the induction chamber connected by channel 10, where it acts on the membrane 12, bending it towards the pressure chamber. The valve 21 closes with the membrane 12 closes the hole that connects the pressure and deduction chambers.

When heated to a predetermined temperature, the sprinkler thermal lock plates disintegrate, its valve opens and water from the induction chamber passes through the channel 10 and cavity 9 into the initiating line and enters the area with increased heating through the opening sprinkler 14,

Water coming simultaneously from the pressure chamber 15 (FIG. 2) through a tube 7 (FIG. 1) through an annular groove and a connected channel. The connected channels pass into the chamber 9 and then into the initiating line and also merge through the opened sprinkler. Stimulation chamber pressure

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falls almost to atmospheric, the valve 21 (rio.2), which is affected by water under pressure, moves towards the induction chamber II, bending the membrane 12 and opening the hole through which water from the pressure chamber 15 passes into the deluge chamber 22, the pipeline 16 and through the deluge 17 enters the conveyor. A prerequisite for a clear operation of the device is the excess of the area for the conditional passage of the main line of the line in comparison with the stitching section of the channel, two, one, two, from the national camera to the secondary.

To bring the system into standby mode, the valve 20 is closed (FIG. 2) and the triggered sprinkler 14 is replaced, after which the engine opens. Water passes through the tube 7 into the induction chamber, .. the diaphragm 12 bends towards the pressure chamber and the valve 21 closes the hole connecting the pressure chamber and the sub-chamber. Installation goes into standby mode.

For verification, tap b opens (FIG. 1), water located in cavity II of the induction chamber and coming from tube 7 passes into the initiating line and flows through the tap 6 into a drainage groove. The pressure in the induction chamber pa, gives, the valve 21 opens.

When closing the tap 6, water through the tube 7 enters the booster chamber and closes the valve 21, putting the UVPK into standby mode.

The electrical contact pressure gauge 5 allows local and remote monitoring of the readiness and operation of UVPK and, if necessary, blocking the conveyor drive,

Patent Officervfl / L.P. Kruglo va

Authors V.P.Alkhimovich

V.S. Komarov Zh.V. Parmenov V.S. Shalaev

Claims (1)

A device for automatically activating a water fire extinguishing installation, comprising a motive chamber, a valve initiating a line, characterized in that the motive chamber is connected to a pressure channel of a limited cross section, and the initiating line is hydraulic and contains sprinklers, an electric contact pressure gauge and a calibration test valve, and the cross-sectional area the channel does not exceed half the cross section of the conditional passage of the initiating line.