DYJD-BKT variable frequency air conditioning experimental platform
Release time：2024-06-19 02:30viewed：times
1. Product Overview: The variable frequency *r conditioning tr*ning and assessment device is developed and designed for the refrigeration and *r conditioning majors of
colleges and universities , various skill tr*nings and national vocational skill appr*sal departments. It is suitable for teaching and tr*ning requirements such as "Refrigeration Principles and Applications", "Refrigeration and Air Conditioning Technology", and "Refrigeration and Air Conditioning Equipment M*ntenance and Operation". The device integrates the refrigeration system, electrical control system, and fault simulation system, with a reasonable layout and beautiful appearance. 2. Product Features: 1. The entire variable frequency *r conditioning system is real and complete, and its overall structure and performance are basically the same as those of variable frequency *r conditioners on the market. It has functions such as refrigeration, heating , ventilation, dehumidification, temperature and wind speed selection, timing and wind sweeping control, sleep, and automatic. 2. The device intuitively displays the system structure and working principle of the variable frequency *r conditioner, which is convenient for teaching demonstrations and students' understanding and mastery of textbook knowledge. The configured AC voltmeter, AC ammeter, temperature meter, vacuum pressure gauge and corresponding signal indicator lights make the real-time working status of the entire variable frequency *r conditioning system clear at a glance; the electrical control system schematic is printed in the middle of the m*n panel, and corresponding test points are set; the structural principle of the entire refrigeration system and the actual objects of the m*n components can be observed on the back of the screen, and the corresponding components are named and labeled; and there is a sight glass to observe the refrigerant status. 3. This tr*ning device is equipped with a fault simulation function, provides a wiring area for outdoor actuators, and offers applied tr*ning projects, which has strong practical tr*ning. It is conducive to students applying theory to practice and cultivating students' practical operation skills; it is conducive to carrying out skill identification and assessment work; 4. It is equipped with a current-type leakage protection device: and a thermal protection device to protect the compressor from overheating and overload; the tr*ning high-voltage connection wires and sockets adopt a hand-plugged fully enclosed structure, which is easy to use, reliable, and prevents electric shock. 3. Technical parameters 1. Input power: single-phase three-wire AC220V±10% 50Hz 2. Device capacity: <1KVA 3. Dimensions: 1500×700×1800mm 4. Refrigerant type: R22 5. Working environment: temperature -10oC～+40oC relative humidity <85% (25oC) altitude <4000m 4. Basic equipment of the device: 1. Tr*ning table : iron double-layer matte dense pattern spray-p*nted structure, aluminum-plastic panel. The desktop is fireproof, waterproof, wear-resistant high-density board with a solid structure. 2. Variable frequency *r conditioning system: evaporator, condenser, compressor, four-way valve, electrical control circuit, sight glass, manual control valve, thermal expansion valve, etc. 3. Measuring instruments: digital temperature meter, pointer pressure gauge, pointer AC voltmeter, pointer AC ammeter, digital power meter, etc. 4. Special tools: portable welding torch, pipe cutting knife, tube expander, double-meter rep*r valve, metric/imperial liquid adding pipe, vacuum pump 5. Single-chip microcomputer , PLC programmable design and control virtual simulation software: This software is developed based on unity3d, with built-in experimental steps, experimental instructions, circuit diagram, component list, connection lines, power on, circuit diagram, scene reset, return and other buttons. After the connection and code are correct, the start/stop, forward motion and reverse motion buttons can be used to operate the 3D machine tool model movement. When the line is connected, the 3D machine tool model can be enlarged/reduced and translated. 1. Relay control: Read the experimental instructions and enter the experiment. By reading the circuit diagram, select relays, thermal relays, switches and other components in the component list and drag and drop them into the electrical cabinet. The limiter is placed on the three-dimensional machine tool model. You can choose to cover the cover. Some component names can be renamed. Then click the connect line button to connect the terminals. After the machine tool circuit is successfully connected, choose to turn on the power and operate. If the component or line connection is wrong, an error box will pop up. The scene can be reset at any time. 2. PLC control: The experiment is the same as relay control, and the PLC control function is added. After the connection is completed, enter the program writing interface through the PLC coding button. Write two forward and reverse programs. There are 12 ladder diagram symbols in total. After writing, select Submit for program verification. After successful verification, turn on the power to operate. If there are component, line connection, and code errors, an error box will pop up. The scene can be reset at any time. 3. Single-chip microcomputer control: The experiment is the same as relay control, with the addition of single-chip microcomputer control function. After the connection is completed, enter the programming interface through the C coding button, enter the correct C language code, submit and verify successfully, turn on the power to operate, and error boxes will pop up for components, line connections, and code errors. The scene can be reset at any time. V. Practical tr*ning projects: 1. Basic operation of special tools for refrigeration systems 2. Welding of refrigeration system pipes 3. Leak detection of refrigeration systems 4. Vacuuming and charging of refrigerant R22 in refrigeration systems 5. Principles of electrical control circuits of variable frequency *r conditioners 6. Measurement of electrical components of variable frequency *r conditioners and system operation 7. Faults and analysis of variable frequency *r conditioners 8. Common faults and troubleshooting of *r conditioner solenoid reversing valves 9. Air conditioner installation 10. Air conditioner commissioning 11. Air conditioner m*ntenance
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