MR172E Basic Procss Control Trainer Process Control Trainer School Educational Equipment
1 Product overview
1.1 Overview
Process control is the abbreviation for automatic control of production process, which is an important part of automation technology. Usually refers to the continuous or automatic control of the production process in the industrial production of petroleum, chemical industry, electric power, metallurgy, light industry, building materials, nuclear energy and so on. In the modern industrial production process, process control technology is playing an increasingly important role in realizing various optimal technical and economic indicators, improving economic efficiency and labor productivity, improving labor conditions, and protecting the ecological environment.
Taking the key technologies and equipment systems that embody the automation and information systems of process enterprises as the main line, we designed and manufactured the type advanced process control professional laboratory comprehensive practice teaching device, and established the professional subject laboratory engineering practice base.
This training device is reasonably designed and has strong versatility. It can not only meet the requirements of experimental teaching of related courses in industrial automation, automatic control and other majors of undergraduate and junior college, but also be suitable for graduate students’ research and development of subjects.
1.2 Features
1. It adopts industrial aluminum profile frame, transparent structure design, and open interface.
2. The product adopts a desktop structure, an all-aluminum alloy frame design, and a separate design for the control object and the control system. It can be placed on the operating table in combination, or placed separately according to needs.
3. The input and output interfaces of the device have good compatibility. The drive unit and the main control PLC unit can be easily replaced, which can be used as the load mechanism of the electronic circuit, and can be used as the execution object of the PLC control system, and can be expanded as needed upgrade.
4. The five thermal detection and sensing devices of temperature, flow, liquid level, pressure and composition widely used in industry can be diversified and related experiments can be designed.
5. The idea of time-sharing control can collect two or three parameters at the same time, for example, one set of flow measurement and one set of temperature measurement. The object system is made of all aluminum alloy. From an aesthetic point of view and without losing the concept of engineering, the object system of the process equipment professional laboratory is reviewed and built, and it will be built into a demonstration laboratory with the atmosphere of the times.
6. The device can complete the basic control training projects of process control, realize the control and PID adjustment functions of the five parameters of flow, temperature, pressure, liquid level, and composition, and can achieve a variety of teaching and training purposes.
2 Performance parameters
1. Power supply: three-phase five-wire 380V±5% 50Hz;
2. Control signal: voltage 0～10V/4-20mA;
4. Working environment: -10℃～40℃, relative humidity: 20%～90% non-condensing
5. Working conditions: ambient temperature -10℃～+40℃ relative humidity ＜85% (25℃)
3 Product composition
(1)Control section
1.Intermediate relay
2.Instrument power supply part
3.plc
4.Circuit breaker part
5.AC contactor
6.Temperature sensor
7.Switch
8.Touch screen
9.24v power supply
10.Inverter
11.Adjustable power supply
12.Wiring terminal block
13.Buttons and indicators
(2)
1.Acrylic water tank
2.Power supply box
3.Working principle diagram
4.Heating water tank
5.Coil pipe
6. Water storage tank
4 Experiment content
1. Process control system structure comprehension experiment
(1) Comprehension of the hardware structure of the process control and testing equipment and the composition and connection experiment of the control scheme
(2) Operation and parameter setting experiments of smart instruments such as smart transmitters
(3) Sensor calibration (zero displacement and range adjustment)
2. Controlled object characteristic test experiment
(1) Single-capacity water tank characteristic test experiment
(2) Double-hold water tank characteristic test experiment
3. Single loop control system experiment
(1) Practice of single loop control system
(2) The upper water tank (or middle water tank or lower water tank) constant level control experiment
(3) Double-hold water tank constant level control experiment
(4) Constant control experiment of static water temperature of boiler water tank
(5) Constant control experiment of dynamic water temperature of boiler water tank
(6) Constant control experiment of boiler water jacket water temperature
(7) Electric valve branch flow constant control experiment
4. Cascade control system experiment
(1) Connection practice of cascade control system
(2) Water tank level cascade control experiment
(3) The cascade control experiment of the liquid level of the lower water tank and the flow rate of the electric control valve
5. Proportional control system experiment
(1) Single closed-loop flow ratio control experiment
(2) Double closed-loop flow ratio control experiment
6. Industrial control configuration software configuration control experiment
(1) Water temperature pure lag control experiment
(2) Flow rate pure lag control experiment
7. Pressure control experiment
