Automatic monitoring system of ground pressure fan
System introduction
High pressure wind is an important power source for underground tunneling equipment and coal preparation equipment, and the stability of wind pressure is an important guarantee for the efficient and safe operation of equipment.If the air pressure is too low, the equipment will not work normally.If the pressure is too high, it will cause gas pipeline rupture and leakage and gas equipment is not safe.Due to the continuous work of air compressor and intermittent, periodical work of gas equipment, to ensure stable gas supply of air supply equipment, air compressor needs continuous operation.Generally, multiple parallel work sets are adopted, which leads to the increase of electricity consumption and maintenance cost of air compressor, leading to the waste of energy. At the same time, excessive wind pressure can easily cause pipe damage and bring great safety risks.The automatic monitoring system of air compressor is adopted to realize automatic regulation and closed-loop control of pipeline pressure and air compressor, ensuring the stable gas supply of gas using equipment and ensuring the operation safety of field equipment and gas pipeline and personnel safety.
Adopting advanced industrial computer, programmable controller, intelligent instrument, data communication technology and various intelligent sensors, the distributed automatic control system is composed of centralized control and decentralized control.The control system consists of four layers: management layer, operation layer, control layer and field equipment.The management and operation layer adopt the technologies of dual thermal standby and dual communication redundancy, and adopt the communication modes of equipment network, industrial redundant Ethernet, local area network and Modbus485 network to form the network structure of integrated management and control.Management upward and enterprise management station to form a high-speed LAN, for managers to provide decision-making information.
System function
Data acquisition display function
Protective function
Control function
Historical data query function
Multi-level user rights and network security
Video image monitoring device can monitor the working state of field equipment in real time;
Network features
System self-test and error handling
System characteristics
According to the number of air compressors in peak and trough periods, the air supply is adjusted reasonably to meet the needs of gas-using equipment, and the energy-saving effect is obviously improved.
Open protocol interface for access to mine industrial Ethernet for data sharing and remote operation.
All products are industrial grade design with strong anti-interference ability and meet the requirements of on-site industrial environment.
The real-time simulation of the simulation animation monitors the internal/external operating state of the pressure fan room, and has various operating parameters and operating trends of the display pressure fan such as charts and curves.
The operation is simple and easy to learn, all operations can be completed with the mouse, and the non-professional short-term training can be skilled in the operation of the system.
It has the function of operating the power distribution cabinet of each pressure fan such as the inlet cabinet, and can detect the current and voltage on each switch cabinet.
The main station of PLC can communicate with the PLC on the operation panel of each compressor fan to realize linkage control.
Pressure fan room realizes unattended automatic operation.
The equipment is managed informationally so that the equipment can run in the best condition, improve the efficiency of the equipment and reduce the amount of maintenance.
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