RU1804867C - Device for gas fire extinguishing - Google Patents

Description

14 are connected to the installation control unit. It is possible to install a large number of smoke detectors, and of different types.

At the outlet of the flow chamber 11, a removable calibration choke 15 is installed, which ensures, regardless of the performance of the unit 10, the flow rate of air through the housing 11. The unit 10 for creating a discharge can be implemented using a fan impeller 16 connected to a drive, for example, an electric motor (not pictured).

For simple and effective control of the presence of air flow through the assembly 9 in the flow chamber 11, a rotary plate 17 is installed in the path of the air flow, while the body of the flow chamber or at least one side thereof, wall 18 is made of transparent material. For ease of adjustment, a scale of 19 is provided.

With a significant number of directions 4i - 4P (two or more) and a different area of the premises, it is advisable to use a single unit 10 to create a discharge installed on a common pipeline 20, to which the outputs of nodes 7i - 7P are connected with the appropriate parameters of the rooms with calibration dowels 15i - 15P . The assembly 10 is turned on to create a vacuum and forced air is sucked out through nozzles 1 with an internal flow rate. There is no signal at the output of the sensors 13, 14 in the housing 11. When a fire occurs in one of the rooms and its smoke, the smoke begins to be forced in through the nozzles 1 and, with a certain concentration exceeding it, smoke sensors 13, 14 are activated, fixing the moment t0 of detecting smoke in the room. The signal from the output of the corresponding unit 7 is supplied to the control unit, which generates a command to open the required number of cylinders of the battery 6 and to activate the corresponding channel 5 of the switchgear. The extinguishing agent is supplied and the control channel is cut off - the inlet of block 7 from the pipeline 4. The cutoff can be performed

and before starting the extinguishing agent, a remotely controlled valve is needed for this. For simplicity, a safety valve 8 is used in the actual construction.

the response of which occurs automatically from the pressure developed by the extinguishing agent, and in a very short time, while the cavity of the housing 11 is reliably blocked for the entire passage time

extinguishing composition and excluding the entry of the extinguishing composition into the control channel.

As the extinguishing agent leaves the nozzles 1 (within about 1 min), the focus of the fire is eliminated.

If at some point in time of the operation of the balloon battery 6 smoke is detected in another room, then the node 9 of the corresponding control channel will also be

A team has been formed to supply the extinguishing agent to this room.

This technical solution can find application in deluge installations.

Claims (2)

1. A gas fire extinguishing device containing a battery with a fire extinguishing agent, a piping system with spray nozzles, smoke detectors connected to a control unit that is electrically connected to a cylinder battery, so that , in order to increase the reliability and speed of fire extinguishing, it additionally contains a control channel connected to the branch from the piping system with spray nozzles, including sequentially arranged pneumatically associated on a common pipeline is a safety valve, a flow chamber with a rotary plate at the inlet and with a calibration throttle at the outlet, a unit for creating a discharge, and smoke detectors located in the flow chamber. 2. The device according to claim 1, with the exception that the housing of the flow chamber or one of its side walls is made of transparent material. 00./