PCS Series

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.

1) Composition and structure characteristics
1. Simple structure: the overall structure has a skeleton and an executive part of the control cabinet,
2. Convenient operation, all operation, display and execution components are installed with external leakage, which is convenient for observation and operation
3. The overall frame is made of stainless steel to prevent the equipment from rusting
4. Only single-phase three-wire AC power supply can be put into use, and the floor space is small, saving housing and reducing infrastructure investment
5. The structure design of the open experimental object makes the experimental object intuitive and easy to understand.
6. The design of the hardware object fully considers the certainty of its mathematical model, which is consistent with theoretical textbooks.
7. The parameters and characteristics of the selected instruments meet the design requirements of the system, and the experimental results are ideal.
8. The disassembly and assembly of instruments and meters deepens students' understanding of engineering instruments and meters, especially the internal principles of devices.
9. A variety of control signals, a variety of control signals and control methods can be selected according to the experimental project
10. You can do DIY experiments; the training device can change the experimental objects and connection methods according to user requirements
11. Human-computer interactive experiment. The configuration software is used for interactive operation, that is, what you see is what you get, and data can also be collected.
2) Security protection
1. The power supply has protections such as leakage, overvoltage, overcurrent, and short circuit, which protect the safety of trainers.
2. Separation of water and electricity; that is, the control system and the execution system are separated, and all the wiring of the execution system is treated with waterproof measures
3) Configure teaching software

The DL-YYJC2 temperature and pressure detection training device is a control object designed for simulating process control, and is a typical first-order control system. Because the system is simple, operability, and there is no potential control hazard, it has become the most typical training equipment for learning engineering control.
The object adopts modular design technology, which is easy to maintain and modify
The main accessories adopt industrial-grade process control components to ensure the quality and reliability of the system
Open hardware control platform, easy to disassemble and debug
 Complete basic skills, professional skills and job skills training through project content, project analysis, project implementation, project summary and ability assessment.
The training device consists of a liquid temperature device and a pressure control device.
The electrical aspect is composed of PLC, heater, thermal resistance, frequency converter, temperature display instrument, etc.
 And provide application guidance and application engineering examples.

Boiler heating program control protection system
1. The boiler heating liner is equipped with a water level and liquid level protection device, and the control system can only control the heating after the water level reaches the specified height.
2. The power control switch of the electric heating tube adopts a key switch, which is easy to manage.
Power protection measures
1. There is a current leakage protector.
2. The two-phase power supply has 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

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

1. Single-phase three-wire AC power supply.
2. The control system contains various modules, which can complete various trainings.
3. The power supply has leakage, overvoltage, overcurrent, and short circuit protection to protect users from electric shock.
4. Open structure design, experimental objects are intuitive, powerful and easy to understand.
5. The design of the hardware object fully considers its deterministic mathematical model, which is consistent with theoretical teaching.
6. The instrument parameters and characteristics meet the design requirements of the system and have ideal experimental results.
7. Instrument assembly and disassembly practice skills
8. Various control signals and control methods can be provided according to the training content.
9. Water and electricity are independent. The control unit and the execution unit are separate. The wiring of the executive unit is waterproof.
10. Provide DIY training programs.
11. Human-computer interaction experiment. Use configuration software to complete interactive operations.