Module for controlling fire-fighting equipment by transient large current

Abstract

The invention discloses a module for controlling fire-fighting equipment by transient large current. The module comprises an inductor L1, a diode V2, a resistor R1, a triode V1, a switch S1, a switchS2, a capacitor C1, a relay K1 and a fire-fighting equipment equivalent load R2. The inductor L1, the diode V2, the switch S2, the capacitor C1, the triode V1 and the resistor R1 form a loop, and theinput end of the inductor L1 is connected with a bus voltage; and the capacitor C1, the switch S1, the relay K1 and the fire-fighting equipment equivalent load R2 form a loop. The relay in a fire-fighting module adopts a capacitor power supply manner, and only consumes the power on the capacitor and does not consume the bus current when the relay is started; the fire-fighting module receives a broadcast command sent by a fire-fighting linkage controller and starts all fire-fighting equipment at the same time; and the capacitor is not only used for starting the internal relay, but also used forstarting the fire-fighting equipment, and the capacitor voltage can be automatically adjusted according to different fire-fighting equipment.

Description

technical field [0001] The invention relates to the field of fire alarm and firefighting equipment control, in particular to a module for controlling the firefighting equipment with a transient large current. Background technique [0002] Building fire protection design generally involves smoke control and exhaust systems and fire protection power distribution systems. The smoke control system generally includes the smoke control fan, pipes and tuyere. The opening and closing of the tuyere is controlled by a fire damper. The release device is generally designed in the fire distribution system, and the release device disconnects the fire power supply when a fire occurs. Fire-fighting equipment such as fire dampers and mouth extractors are generally started by pulse voltage control, which has the characteristics of large starting current and short duration. [0003] In the prior art, the method of controlling the fire damper and the release device is as follows: the fire li...

AI Technical Summary

Problems solved by technology

[0004] Insufficiency of the existing technology: the internal relay of the fire protection module adopts a continuous DC voltage power supply mode, and the working current is large

When a fire occurs, multiple fire-fighting modules in adjacent fire compartments are started at the same time, which will inevitably cause a large current to flow on the fire-fighting bus, resulting in a large voltage loss on the line

When the voltage loss on the line is large, it will cause insufficient voltage at the end, which will eventually cause the module to fail to work normally and start the equipment, and will also cause abnormal communication between the fire linkage controller and the fire module

If the method of starting fire-fighting equipment in time-sharing can solve the above problems to a certain extent, but it will cause a long time for all equipment to start, which is not conducive to fire prevention and control

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