SU955956A1 - Fire extinguishing device control unit - Google Patents

Description

The invention relates to fire extinguishing devices.

Known fire extinguishing device control unit containing a power source _ connected first ->

outputs with the input of the executive unit and the input of the delay element connected to the executive unit ’the equipment shutdown unit, fire detection sensors and signaling device [1J.

The disadvantage of the known control unit is the low management efficiency of equipment shutdown in case of fire hazard. and

The aim of the invention is to increase the efficiency of management shutdown equipment in case of fire hazard.

This goal is achieved by the fact that the control unit of the fire extinguishing device, containing a power source, connected by the first outputs to the input of the executive unit and the input of the delay element connected ~~ to the executive unit, the equipment shutdown unit ³ , fire detectors> situation and alarm, according to According to the invention, it has a start block and a logic block, while the second outputs of the power supply are connected to the input of the start block and the first input of the logic block, the second inputs of which are connected to the outputs of the sensors fire conditions, and its third input is connected to the first output of the starting block, connected by the second output to the inputs of the equipment shutdown block, and the output of the logical block. connected to the input of the detector and the control input of the delay element.

In FIG. 1 shows a functional diagram of a control unit; figure 2 its circuit diagram.

• The fire extinguishing device control unit contains a power source 1 connected to the start-up block 2, made in the form of a control relay 3 and a button. 4, in parallel with which the closing contact 5 of the control relay 3 is connected. The winding of the control relay 3 is shunted by the tripping elements 6-8, forming the equipment tripping unit. The control unit also has fire detection sensors 9-11 connected to the logic inputs. block 12. The latter is made in the form of series-connected opening contacts 13-15 connected to the closing contact 16 of the relay 3 control and. with delay element 17 in the form of a time relay. In parallel with element 17, the signaling device 18 'is switched on (light panel, bell). To supply the extinguishing agent to the room, the executive · block 19, 5 is connected to the power source 1 through contact 20 of the time relay that is closed with a time delay for closing.

At the same time, one of the outputs of the power supply source 1 is connected to the input of the starting block 2 and the first input of the logical block 12, the second inputs of which are connected to the outputs of the sensors 9-11 fire, and its third 15 input is connected to the first output of the starting block 2, connected by the second output to the inputs of the equipment shutdown unit, and the output of the logical unit 12 is connected to the input of the signal analyzer 18 and the control input of the delay element'17.

After switching on, the control node operates as follows.

In the event of a fire in the room and the need for a fire extinguishing composition to be supplied to it by pressing the button 4, power is supplied to the relay coil 3 and trip elements 6-8 of the production equipment. ed

Having worked, the relay 3 by its contacts 5 shunts the contacts of the button 4, and by the contacts 16 it prepares the power circuit of the signaling device 18 and the windings of the time relay of the delay element 17. ,,

Receiving food items 6-8 · The relative ^e exception of equipment stop production equipment, resulting in significantly reduced noise level in the room, drawing the attention of the staff. . 40

The contacts 13-15 of the sensors 9-11 after the production equipment is stopped, close, and power is supplied to the signaling device 18 and the time relay winding. 45

Having worked, the time relay of the delay element 17 with the time delay necessary for the maintenance staff to leave the room timely, closes its contact 20 with the time delay in the power circuit of the executive unit 19. At the same time, a fire extinguishing composition is supplied to the room and the fire fighting process occurs.

The use of this control unit of the fire extinguishing device will improve the efficiency of equipment shutdown control during fire safety.

Claims (1)

management and with a 17 delay element in the form of a time relay. In parallel with the control unit 17, the indicator 18 (light panel, bell) is turned on. For supplying the fire-fighting composition to the premises, the executive unit 19 is connected to the power supply 1 through the closure contact 20 of the time relay. At the same time, one of the outputs of the power supply 1 is connected to the input of the starting unit 2 and the first input of the logic unit 12, the second inputs of which are connected to the outputs of the fire extinguishing sensors 9-11, and its third input is connected to the first output of the starting unit 2 connected by a second output to the inputs of the equipment shutdown unit, the output of logic unit 12 connected to the input of the detector 18 and to the control input of delay element 17. After turning on, the control unit operates as follows. In the event of a fire in the premises, and the need to feed the fire-fighting composition into it by pressing the button 4, the relay coil 3 and the disconnection elements 6-8 of the production equipment feed the power supply. When triggered, the relay 3 with its contacts 5 shunts the contacts of the button 4, and with the contacts 16 it prepares the power supply circuit of the detector 18 and the winding of the time relay of the delay element 17. After receiving power, the elements 6–8 of equipment shutdown stop the production equipment, as a result of which the noise level in the room is significantly reduced and the attendants are attracted. . Contacts 13-15 of sensors 9-11 after stopping production equipment are closed, and power is supplied to the alarm 18 and the time relay winding. Having triggered, the time relay of the delay element 17 with the time delay necessary for the employees to leave the premises in a timely manner re-energizes its contact 20 with the time delay in the power supply circuit of the executive unit 19. At the same time, an extinguishing composition is supplied to the room and the fire extinguishing process takes place. The use of this unit of fire extinguishing device control will increase the efficiency of equipment shutdown control in case of fire safety. Claims An extinguishing device control unit comprising a power source connected by first outputs to an input of an execution unit and to an input of a delay element connected to the execution unit, an equipment shutdown unit, fire suppression sensors and an alarm device, characterized in that in order to increase the efficiency of the shutdown control fire safety equipment, it has a starting unit and a logic unit, while the second power supply outputs are connected to the input of the power supply unit and the first the input of the logic unit, the second inputs of which are connected to the outputs of fire suppression sensors, and its third input is connected to the first output of the starting unit connected by the second output to the inputs of the equipment shutdown unit, the output of the logic unit connected to the input of the signaling device and to the control input delay element. Sources of information taken into account in the examination 1. USSR author's certificate 795542, cl. A 62 C 37/06, 1979. Fu /. fug.