SU1277158A1 - Device for automatic control of systems for fume removal and fire alarm - Google Patents

Abstract

The invention relates to devices for indicating a fire and provides an indication of the occurrence of a fire and the automatic activation of actuators for actuators of air valves, mainly in multi-storey buildings. The purpose of the invention is to increase the reliability of the device by eliminating a large number of switching relays that are constantly under voltage. The device contains two Fault signal relays, connected to the power rails via resistors and shunted by the series-connected signal and control loops of all floors, respectively. Parallel to the signal loops of each floor, they are connected through the closing contacts of the signal relay Fire winding of the actuators of the air channel drives. When the circuit of one loop is opened, the corresponding signal relay is triggered. Fault, a place of operation is induced by a corresponding signal lamp, which indicates damage to the loop. (L When both loops are simultaneously triggered, both relays of the signal are triggered. Fault, through which contacts the signal relay is activated. Fire, through the contacts of which the winding of the actuator actuator of the air valve of the floor on which the loops opened is activated. 1 Il.

Description

12

This invention relates to automatic controls for smoke exhaust systems and fire indications.

The aim of the invention is to increase the reliability of the device.

The drawing shows the electrical circuit of the device.

The device contains relay 1 of fire. Fire with contacts 2-8, relay 9 of signal Fault with contacts 10 and 11, relay 12 of signal Fault JC contacts 13 and 14, windings 15-17 of power supply of actuators of air valve actuators (not shown ), fire hydrant buttons 18-23 (not shown), heat sensors 24-35, days 36-41, signal lamps 42-47, resistors 48 and 49, buttons 50 and 51 of the power bus 52-55. The drawing also shows a power transformer 56 with a rectifier 57, a capacitor 58 with a leakage resistor 59, and thermal releases 60 and 61-.

The device works as follows.

When one of the opening. Thermal sensors or a break in the connecting wires triggers the corresponding relay 9 or 12, which, with its contact (not shown), triggers the Fault signal. When buttons 50 and 51 are pressed, indicator lamps 42-47 indicate where the loop circuit is opened.

The simultaneous operation of relays 9 and 12 (for example, when the contacts of thermal sensors 27 and 33 on the second floor are opened) is a fire signal. In this case, relay 9, contact 11, and relay 12, contact 14, turn on relay 1 of the signal Fire, which, with its closing contacts 4-7, connect windings 15, 16 and 17 of actuators of the actuators of the air valves to the power supply circuit. an actuator 16, in the circuit of which the thermal sensor 27 opened its contact. The remaining actuators 15 and 17 do not work, as they are shunted by chains of indicator plumes of floors. To the thermal sensor 35 by the contact 8 of the relay 1 a capacitor 58 is connected, which acts on the thermal sensor 35, which is turned off, removing power from the actuators

582

The relay 1, with its closing contacts (not shown), switches on the smoke exhaust fan, gives a command to lower the elevators of the building to the first floor and emit a signal Fire to the control room. The opening contact 10 of the relay 9 and the opening contact 13 of the relay 12 serve to further break the working and control indicator stubs during a short break of the latter, for example, contacts 18 and 21 of the fire hydrant's button on the first floor.

Claims (1)

1 The invention relates to automatic devices for controlling smoke exhaust systems and fire indications. The aim of the invention is to increase the reliability of the device. The drawing shows the electrical circuit of the device. The device contains a 1-relay relay Fire with contacts 2-8, relay 9 signals Fault with contacts 10 and 11, relay 12 signals Fault JC contacts 13 and 14, windings 15-17 of power supply for actuators of air valve actuators (not shown), buttons 18-23 fire hydrants (not shown), heat sensors 2435, days 36-41, warning lights 42-47, resistors 48 and 49, buttons 50 and 51 of the power bus 52-55. The drawing also shows a power transformer 56 with a rectifier 57, a capacitor 58 with a leakage resistor 59, and thermal releases 60 and 61-. The device works as follows. When one of the opening. Thermal sensors or a break in the connecting wires triggers the corresponding relay 9 or 12, which, with its contact (not shown), triggers the Fault signal. When buttons 50 and 51 are pressed, indicator lamps 42-47 show the place where the loop circuit is opened. The simultaneous operation of relays 9 and 12 (for example, when the contacts of thermal sensors 27 and 33 are opened on the second floor) is a fire signal. In this case, the relay 9 by the contact 11 and the relay 12 by the contact 14 turn on the relay 1 of the signal Fire, which connects the windings 15, 16 and 17 of the actuators of the actuators of the air valves to the power supply circuits with their closing contacts 4-7. 16, in the circuit of which thermal sensor 27 has opened its contact. The remaining actuators 15 and 17 do not work, since they are shunted by chains of indicator plumes of floors. The thermal sensor 35, by the contact 8 of the relay 1, connects a capacitor 58 acting on the thermal sensor 35, which turns off, removes power from the actuators 82 Relay 1, with its closing contacts (not shown), turn on the smoke removal fan, give the command to lower the building elevators to the first floor and they bring the signal Fire to the control room. The opening contact 10 of the relay 9 and the opening contact 13 of the relay 12 serve to further break the working and control indicator stubs during a short break of the latter, for example, contacts 18 and 21 of the fire hydrant's button on the first floor. The invention The device for automatic control of smoke removal and fire alarm systems containing a signal relay Fire, first signal relay Malfunction and number of floors for the performer. Mechanisms for actuating air valves, indicator and control loops, each of which consists of series-connected fire hydrant buttons and thermal sensors of each apartment, characterized in that, in order to increase the reliability of the device, a second signal relay Fault, two resistors, two to ops and by the number of loops diodes and signal lamps, one of the terminals of the signal relay coils The fault is connected to the first power bus to which the beginning of the control loop of the first floor is connected, the beginning of the indicator cable of the first floor is connected through the disconnecting contact of the signal relay Fire to the first power bus, and through the first closing contact of the signal relay Fire to the second power bus, the indicator and control loops of all floors, respectively, are connected in series, the ends of the indicator and control loops of the latter via the disconnecting contact of the corresponding signal relay. Fault connected to other outputs of the windings of the same signal relay. Fault, each of which is connected to the third power supply bus through the corresponding resistor, the end of the last floor indicator through the second closing contact of the signal relay Fire connected to the fourth power supply bus, winding relay signal Fire connect