A module of transient large current control fire fighting equipment

Abstract

The invention discloses a module for controlling a fire-fighting equipment with a transient large current, which includes an inductor L1, a diode V2, a resistor R1, a triode V1, a switch S1, a switch S2, a capacitor C1, a relay K1 and an equivalent load R2 of a fire-fighting equipment; the inductor L1, diode V2, switch S2, capacitor C1, transistor V1, and resistor R1 form a loop, and the input end of inductor L1 is connected to the bus voltage; the capacitor C1, switch S1, relay K1, and fire-fighting equipment equivalent load R2 form a loop. The internal relay of the fire protection module adopts the capacitor power supply mode. When the relay is started, it only consumes the power of the capacitor and does not consume the bus current; the fire protection module receives the broadcast command sent by the fire linkage For starting the fire fighting equipment, 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

Images