process industry training equipment

The trainer used a control example to introduce a comprehensive experimental basis for the basic principles of control engineering. A pump loads water from a storage tank into a transparent liquid level control tank, and a pressure sensor is installed at the bottom of the liquid level control tank. The controller used is the most advanced digital industrial controller in a country. The actuators in the control loop are pneumatic control valves and electro-pneumatic positioners. A ball valve in the outlet allows the defined disturbance variable to be generated. The control variable X and the manipulated variable y are directly drawn on the integrated two-channel line machine. In addition, the variable can be used in the analog signal of the jack in the switch cabinet room. Such as oscilloscope or flat plotter.

The DLLY-HYGS462 constant pressure water supply training system is composed of six-story residential fire protection system and domestic water supply system. The fire protection and water supply pipelines are independent, which integrates safety and water supply. The system includes four pump motors: two of them provide normal daily water supply during the day, one is a dormant pump, and the other is a fire pump to provide fire water. The device also uses PLC, frequency converter, pressure transmitter, pressure relay instrument, one-way control valve, reservoir, water supply buffer device, which can complete the floor constant pressure water supply training in multiple modes, and is used for teaching and research. Pressure water supply technology provides an open operating platform.

Boiler heating program control protection system 1. The boiler heating liner is equipped with a water level and liquid level protection device. The water level does not reach a certain height, and the control system cannot control the operation of the SCR regulator. 2. The power control switch of the electric heating tube adopts a key switch, which is not convenient for teachers to manage. Power protection measures 1. With current leakage protector. 2. The two-phase power supply is equipped with a fuse to prevent disconnection. Power start-stop control mode; Use the start-stop button to control the contactor to control the start and stop of the power supply. Leakage protection device and safety and safety commitment;  Reliable protection functions of various power supplies and various instruments