SU80129A1 - Control signal valve for sprinkler systems - Google Patents

Description

Known design of control and signal valves, adapted for installation on a specific sprinkler system, for example, water or dry pipe. Often a dry pipe system that is cold under air is kept under water in warm time; however, in order to do this on the sprinkler system, a valve for a dry pipe sprinkler system and another valve for a water sprinkler system must be installed. This greatly increases the cost of such a mixed system.

The described control-signal valve can operate on any sprinkler system: water, dry pipe and mixed, as a result of which, when used, for example, for a mixed system, the installation is greatly simplified.

FIG. 1 is a diagram of the installation of a control and signal valve on a sprinkler system; in fig. 2 - valve in vertical section.

The main differential valve 2 is located in the housing / and there is a 3-discharge valve4 on the rod with it (Fig. 1). The housing / valve is divided by a partition 5 with a gland thrust sleeve 6 (FIG. 2) for rod 3 into two chambers, of which the main differential valve 2 is larger and the relief valve 4 is smaller, and the discharge valve 4 divides the smaller chamber into two cavities, of which cavity 7 communicates with the atmosphere through the throttle washer 8, cavity 9 communicates by means of valves 10 and // with a dry pipe system with a pipe from the water supply, and with a water system with the atmosphere.

An annular recess 13 is made on the plate of the differential valve 2, communicating with the channel in the valve's cornea through radial notches 14 at the base of the saddle to which the pipeline 15 is connected to the water bell of the signal bell.

№ 80129

In order to compensate for possible leakage of water from the sprinkler network and thus prevent the valve from opening falsely, a pipeline 16 connected to the sprinkler network communicates with the pipeline 12 from the water supply to the valve 17 through a check valve 18 and a tap 19 with a small flow area.

To put the valve into operation, when valve is installed in the dry pipe system, valve 10 is opened, as a result of which water from the water flower will flow into the cavity 9 of the small chamber. At the same time, under pressure from the water, the discharge valve 4 will move and move the differential valve 2 into the closed position. After that, the supply of compressed air from the compressor is included in the sprinkler network and the valve 17 is opened in the pipeline 12 from the water supply. Since the water pressure of the differential valve 2, due to its larger diameter-a, is greater than the water pressure on the discharge valve 4, the first one tends to open and only the air pressure in the pipe 16 keeps it from it.

As soon as during the fire, the air pressure in the pipe 16 drops due to the opening of the sprinkler, immediately the water pressure control valve opens and the water flows into the sprinkler network. At the same time, water will flow into the pipeline 15 along the annular recess 13 of the differential valve 2 and the turbine will give a fire signal.

When the valve is operated on the water pipe system, the valve / O is closed and valve 11 and edge 19 are opened, and then valve 17. At the same time, water from the water supply will fill the sprinkler network, after which the valve closes due to the larger working surface with water pressure in the pipe 16 of the sprinkler network facing the sprinkler network.

When the water pressure in the pipe 16 drops, due to the opening of the sprinkler during a fire, the control and alarm valve will automatically open.

Subject invention

Claims (1)

1. A coitrol-signal valve for sprinkler systems with a shut-off valve in the form of a differential valve that opens automatically in the event of a fire and supplies water to the sprinklers and water turbine of the signal bell, characterized in that in order to install it on any sprinkler system, the valve has an additional a chamber with a unloading valve sitting on a common stem with a differential valve and dividing this chamber into two cavities, one of which communicates through the throttle plate with the atmosphere and the other through gates atmosphere or to the conduit from vodoiitatel. 2, a check valve according to claim 1, characterized in that the sprinkler network communicates with the pipeline from the water supply through a non-return valve and a valve with a small flow area, in order to compensate for possible water leaks from the sprinkler network and thereby prevent a false opening of the valve.