Fire protection double-speed draught fan intelligent controller

Abstract

The invention discloses a fire protection double-speed draught fan intelligent controller comprising a controller circuit, a current/voltage signal conversion circuit, a voltage drop circuit, a voltage detection and protection circuit, an external signal input isolation circuit, a key circuit, a relay output circuit, a display circuit, an indicator lamp circuit, a buzzer circuit and a control panel. The current/voltage signal conversion circuit and the voltage drop circuit are each connected with the voltage detection and protection circuit. The voltage detection and protection circuit, the external signal input isolation circuit, the key circuit, the relay output circuit, the display circuit, the indicator lamp circuit and the buzzer circuit are each connected with the controller circuit.The miniaturized design is adopted for the fire protection double-speed draught fan intelligent controller, the control precision is high, multiple functions are achieved, the fire protection double-speed draught fan intelligent controller is simple, practical and convenient to install, a traditional relay control manner is completely replaced, the assembly efficiency is improved to a great extent, cost, such as manpower, wire rods, boxes and shell frames, is saved, and meanwhile practicability of fire protection draught fans is also improved.

Description

technical field [0001] The invention relates to the field of fire-fighting fan controllers, in particular to an intelligent controller for a fire-fighting two-speed fan. Background technique [0002] The fan control device is used to control the smoke exhaust fan or the smoke prevention fan. When a fire occurs, according to the received control signal, the smoke exhaust fan starts to discharge the smoke generated by the fire to the outside; the smoke prevention fan starts to send the outdoor air into the room, thereby reducing the indoor smoke concentration, achieving smoke exhaust and smoke prevention. the goal of. [0003] The traditional fire-fighting fan control device adopts the relay control method, the equipment components are large in size, difficult to assemble, and the cost of the wire box frame is high; moreover, the control function of the traditional fire-fighting fan control device is relatively single, which can only realize the start and stop of the fire-fig...

AI Technical Summary

Problems solved by technology

[0003] The traditional fire-fighting fan control device adopts the relay control method, the equipment components are large in size, difficult to assemble, and the cost of the wire box frame is high; moreover, the control function of the traditional fire-fighting fan control device is relatively single, which can only realize the start and stop of the fire-fighting fan control, and the failure of the three-phase AC power supply cannot be detected in time, which is not conducive to protecting the safe operation of the fire-fighting fan

Images