Structure of digital intelligent fire inspection cabinet:

Mainly composed of: parameter input unit (human-machine interface), intermediate control unit, drive speed regulation unit, flag input and other units.

1. Parameter input unit (human-machine interface):

Adopting a small touch screen as the human-machine interface, all operating parameters are set and changed through the human-machine interface. The human-machine interface adopts a Chinese menu and has a data memory function. Through the human-machine interface, the parameters of the mechanical and electrical operation during inspection can be displayed. When the fire pump malfunctions, the human-machine interface displays the overall location of the problem and issues an alarm flag, while ending the transient parameter memory during the malfunction.

2. Intermediate manipulation unit:

The intermediate control unit primarily receives parameters set from the human-machine interface and various flags of the fire pipeline and circuit. Through the PLC's pace, the drive system is manipulated. Under the control of the intermediate control unit, the low-frequency current of the driving speed control unit is separated by the communication contactor to supply low-frequency power to the surveyed fire water pump, causing the fire water pump to operate at a low speed according to the set cycle and reach the target of each survey. When a fire alarm is triggered, the programmable controller receives a fire command, and the inspection cabinet automatically stops working instantly. At the same time, the flag is released, and the fire distribution cabinet is started to supply power to the fire pump, which has the function of extinguishing the fire.

3. Drive speed regulation unit:

The drive speed regulation unit is a frequency conversion speed regulation device specially customized by our company for digital intelligent fire inspection. This drive speed regulation unit has the characteristics of high low-frequency transmission torque and strong overload capability, which is particularly suitable for starting and running the fire water pump at low speeds. The drive speed regulation unit is equipped with a parameter configuration panel, which can configure parameters such as frequency, employment mode, and control method. The drive speed regulation unit also has overload alarm and automatic protection functions. When the fire water pump malfunctions during inspection, the drive speed regulation unit will issue an alarm flag and automatically stop running. The configuration of the drive speed regulation unit is also relatively simple and easy to implement.

4. Flag input unit:

Flag search is carried out by the flag input unit, and various flags of the fire protection system, such as the pressure flag of the fire pipeline, the liquid level flag of the fire water source, the behavior flag of the control circuit, and the fire control flag in the middle, are all passed through the flag input unit to enter the middle control unit. The middle control unit uses the input flag to make judgments and issue behavior instructions.

Regular automatic low-frequency, low-speed, and pressure free inspections of fire pumps;

Low starting power and no retaliation against the power grid;

Not sending it to the fire department and sending it to the water pipeline network for pressurization will not affect the safety of the pipeline system;

In order to avoid the occurrence of corrosion and rusting of water pumps, as well as mechanical and electrical dehumidification, etc;

When conducting inspections using firefighting methods, security overpressure devices are used;

Automatic inspection of dual power supply system: survey the normality of the main and backup power supplies;

Inspection of electrical control system;

Inspection of the sewage pump in the fire pump room: In order to avoid the occurrence of corrosion and rusting of the sewage pump in the pump room for a long time without sewage secretion, it is necessary to prevent the pump from being unable to operate when needed, resulting in a large amount of water accumulation in the pump room, damaging the fire protection configuration, and causing the fire protection system to collapse;

Electric valve inspection;

The microcomputer intelligent inspection configuration has self checking function;

When conducting inspections, switch to firefighting employment mode within 0.5 seconds upon receiving a fire order;

The inspection power consumption is extremely low, only about 1% of the rated power;

Liquid level alarm function, automatic shutdown at low water level, automatic startup upon restoration of water level, automatic alarm for water level out of train issues;

Image display, fault record, operation, fault text display, fault record is of the lost power retention type, can be checked for historical records, and can store 20000 fault messages;

Automatic printing of fault messages;

Fault alarm: equipped with on-site sound and light alarm, fire control room alarm, German law wind alarm, mobile phone voice, short message alarm;

Equipped with RS485 interface and reserved data monitoring interface;

Can access the internet, long-distance data transmission, and remote control from the fire control room;

Long distance network fault diagnosis, data protection, and functional upgrading; wait a minute