SU1300521A1 - Device for providing fire alarm and automatic control of smoke removal system - Google Patents

Abstract

The invention relates to fire fighting equipment, in particular, to devices that provide fire alarm system in one of the apartments of multi-storey residential buildings and automatically switch on the smoke removal system at home. The purpose of the invention is to reduce the power consumption of the device. In the device, in the signal beam of each floor, the windings of the relay are connected in parallel to the serially connected contacts of the thermal sensors of each apartment, the signal rays of all floors are connected in series and connected to the power source through the winding of the signal relay. In standby mode, the current flows only through the winding of the signal relay, when any thermal sensor of the apartment is opened, the signal beam relay of the corresponding floor is turned on, and the subsequent switching on of the other signal rays relay when the corresponding thermal sensors are triggered is excluded. 1 il. (L

Description

This invention relates to counter. fire equipment, in particular, to fire alarm devices and automatic control of the smoke removal system, providing signalization of fire in any of the apartments, excluding false signals, and automatic activation of the smoke removal system of a residential building.

 The purpose of the invention is to reduce the power consumption of the device.

The drawing shows the electrical circuit of the fire alarm device and automatic control of the smoke exhaust system. The device contains relay 1, contacts 2 of thermal sensors, signal e, relay 3, control relay 4, executive relay 5, enable button 6, button 7 for switching on the executive relay 5, signal lamps 8-11, buses 12 and 13 gshtani. Relay 1 contains contact 14, relay 3 - contacts 15 and 16, relay 4 -, contact 17, relay 5 - contact 18, relay 1 - contact 19.

The device has three modes of operation: standby mode; alarm mode; emergency mode, in each of which it works as follows.

Duty Mode To put the device into standby mode, it is enough to turn on the supply voltage. This creates a circuit: bus 12, pins 2, relay 3, bus 13 power network; power bus 12, pins 2, relays 4, power bus 13, Fired relays 3 and 4 create a standby mode of the device.

Alarm mode In case of fire, due to the increase in temperature in a protected room, two corresponding contacts 2 break the supply circuits of relay 3 and relay 4. At that, relay 4 is turned off, the shunt circuit of the corresponding relay 1 of power supply bus 12, relay 1, contacts 2, relay 3. Relay 1 is energized and continues to be in the excited state of relay 3. Its contacts 14 relays 1, relay 3, relay 4 form a circuit: power bus 1, relay 14, relay 1, relay 15, relay 3, relay 17, relay 4 , the winding of the executive relay 5, the bus 13 power. The signal lamp 9 of the fire lights up, actuating relay 5 is energized, which by its contact

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18 is self-blocking. Other closing contacts Sne are shown). Executive relay 5 makes a start. no-smoke units and sends a fire signal to the control room,

Emergency mode. In the event of a wire breaking in the circuit of the relay 3 or burning it through the contact 16, the lamp 10 is turned on.

In the event of a wire breaking in the relay circuit 4 or burning it through its contact 17, lamp 11 is turned on,

Signaling, the combination of luminous lamps 8 and 9 determines the place (floor) where the fire occurred, and the combination of luminous lamps 8 and 10 indicates a malfunction of the floor beam.

Claims (1)

Invention Formula A fire alarm and automatic smoke management system, containing signal beams for the number of floors of the building, each of which contains relays and heat sensors from each apartment, whose contacts are connected in series, a control beam, containing heat sensors from each apartment and a control relay, winding which contacts are connected in series and connected to the device power buses, the contacts of the signal beam relays and the control relay are connected in series with the corresponding signal lights s are connected to 1 power supply, the executive relay, one end of which winding is connected to one power bus, the other end of the winding is connected-successively but to the contacts of the control relay, the other contacts of the signal beam relays are connected to another power bus, characterized in that In order to reduce the power consumption of the device, a signal relay is inserted into it, in each signal beam, those 1 lines of sensors of each apartment are connected in parallel to series-connected contacts, the signal beams of all floors are on The terminals are connected in series and connected to the power source through the winding of the signal relay, the closing contact of which is connected between the combined other contacts of the signal beam relay and the contact of the control relay. 12 o / j 2,2222 Editor N.Gorvat Compiled by O. Bogomolov Tehred I. Popovich Order 1152/50 Edition 544 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d, 4/5 Production and printing company, Uzhgorod, st. Project, 4 Proofreader M. Pojo