SU581303A1 - Device for automatic turning-on of water curtains - Google Patents

Description

one

This invention relates to an automatic fire extinguishing technique and is intended for use in devices for extinguishing coal fires with water.

An automatic valve is known, comprising a housing with supplying, stimulating and deluge chambers, a locking mechanism and an actuator designed to supply fire extinguishing fluid in a fire-fighting installation. 11 in the normal condition in the closed position.

To communicate the supply and the stimulator, the piston has a through axial channel with a throttling hole at the end, from the side of the feeding chamber.

The drawback of the device is that the guide part of the e-mechanism mechanism is too large and the likelihood of clogging of the throttling hole of the piston is more likely.

The closest technical solution is a device for automatically turning on water

a curtain containing a housing with a power supply and an incentive camera, a memory installed in an incentive chamber, and a t2j incentive valve.

The aim of the invention is to provide B03NiomHOCTH with automatic shutdown of the faulty part of the pipeline.

This is achieved by the fact that the booster chamber is equipped with an additional membrane, the membranes are rigidly interconnected and are made with a different effective area, and the stimulating valve is designed as a sprinkler with a thermal lock.

The drawing shows a device for automatically turning on water curtains.

In the case I of the device, there is a supply chamber 2 and an impulsive chamber 3, limited by membranes 4 and 5, having a different effective area and rigidly interconnected through a cracker 6. Outlet holes in the walls of the case, located upstream of the membranes, have seats 7 and 8. Saddle 7 is located in the pipe. Pipeline 9, and the saddle 8 - in the channel.

connecting the body to the nozzles 10 of the water curtain.

The booster and the camera are connected via pipes II and 12 to an actuator valve 131 consisting of a sprinkler sprinkler 14 with a thermal lock 15, dTceKaKai i 6 valve 16, a stop cap 17 and it is Id.

The device works as follows.

In the absence of: APA, membrane 4 is tightly pressed to cejvty 8 by overlapping with the same joocryn of the dode to the nozzles “10-ns ns of the veil”. This is the fact that the resultant force acting on the membrane is directed in this direction, because the water in the stimulant and the vacuum chambers are the same, and the membrane 4 has a large effective area limited by the saddle 8, it does not drain the water from the side of the nozzles.In addition, both membranes are mounted so that their natural deflection is directed towards the sedp 8, because the seat pipe 7 is open, the water passes freely through the device and can be used below its location .

When a device occurs and when the temperature of the surrounding environment is increased, the heat lock 15 paspyOcieTc is locked and the head 17 is pushed outward with a pressure. With this stimulation chamber, the tube 11 and the opening in the membrane 18 are in communication with the atmosphere, and the shut-off valve 1b stops the flow of water: through the incentive valve 13. As a result, the pressure of the water in the stimulation chamber will be close to zero while maintaining head in pitakadey chamber, and effective in

 it is not the same, the last ones are digging in the direction of the sedp 7 of the pipeline and cross it &rs; open it & nd the access of water to the force bags of the water curtain. In this way, the process automatically switches on VD and (at the time of disconnection of the parts of the mine pipeline located below the device.

In the event of a fire and pipeline failure: in its zone, a flying device allows the faulty section of the pipeline to be shut off, while retaining the unsuitable faanop water for the operation of the water curtain, which is turned on automatically.

Claims (2)

Invention Formula 1, A device for automatic activation of water curtains, including a "housing with a pitcher (and a stimulating chamber, a scroll installed in the incentive cut., and the incentive valve, about Sf & “, which, in order to ensure the automatic shutdown of the expansion section of the pipeline, the stimulus chamber is equipped with an additional membrane, and the membranes are rigidly connected with each other and are made various effective plotsady 2. The device according to Claim 1, characterized in that the motive valve is designed as a sprinkler with thermal lock. Sources of information taken so attention in the examination: 1. Information collection TsNKIPO Fire equipment 1964, 5, Stroyzdat, p. 47 i. USSR author's certificate 256515, cl. A 62 C 37/06, 1966. YY /  AT 7