DYLR-KY air conditioner principle training device

The *r conditioner principle tr*ning device is open-type, equipped with refrigeration pipeline equipment, equipped with various circuit schematic tr*ning boards, and the electrical components required for the circuit are installed on the tr*ning board. Students can conduct wiring tr*ning of refrigeration circuits, analysis of relevant indication data of refrigeration circuits, and analysis of common faults of refrigeration circuits according to the requirements of the circuit schematics. The actual industrial electrical appliances of the electrical control circuit of the window *r conditioner are intuitive, reliable, and have a long service life. The circuits can be connected by themselves and the fault points can be set arbitrarily. It is suitable for technical colleges and vocational schools as a tr*ning of basic refrigeration skills.

2. Device features
1. The entire *r conditioning system is real and complete, and its overall structure and performance are basically the same as those of *r conditioners on the market. It has functions such as cooling, 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 *r conditioner, which is convenient for teaching demonstration and explanation and students' understanding and mastering of textbook knowledge.
3. The configured AC voltmeter, AC ammeter, vacuum pressure gauge and corresponding signal indicator lights make the real-time working status of the entire *r conditioning system clear at a glance; the electrical control system schematic diagram and the refrigeration system schematic diagram are printed in the middle of the m*n panel.
4. The panel can observe the actual objects of the entire refrigeration system structure principle and the m*n components, and the corresponding components are all named and marked; and there is a sight glass to observe the refrigerant status.
5.. This tr*ning device has a fault simulation function, and offers applied tr*ning projects, which has strong practical tr*ning. It is conducive to students to apply theory to practice and cultivate students' practical operation ability;
6. It is equipped with a current type leakage protection device; and there is a thermal protection device to protect the compressor from overheating and overload; the practical tr*ning strong current connection wire and socket adopt a pistol plug-in fully enclosed structure, which is convenient, reliable and prevents electric shock.
III. Technical parameters
1. Input power: single-phase three-wire ~ 220V ± 10% 50Hz
2. Device capacity: <1.5kVA
3. Dimensions: 500cm × 500cm × 1000cm
4. Refrigerant type: R22
5. Dimensions: 750 × 500 × l000mm
IV. Function
1. Identify various refrigeration components.
2. Cognition of various *r conditioning refrigeration and systems.
4. Fault identification of refrigeration system: The fault valve specially designed in various refrigeration systems can be used to artificially create system faults, and the fault can be judged through the fault phenomenon and high and low pressure, current and other meter parameters.
5. Refrigerant charging: A special liquid charging valve (or three-way valve) is added to the system. Through the fluorine charging device, the actual operation of discharging refrigerant and quantitatively charging refrigeration can be carried out.
6. Vacuuming, nitrogen filling, and leak detection: Through the vacuum pump and nitrogen charging device, the system can be vacuumed and nitrogen filled for pressure testing. Students use leak detection tools to find leaks in the system.
7. 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 diagrams, component lists, connection lines, power on, circuit diagrams, 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 movement of the three-dimensional machine tool model . When the line is connected, the three-dimensional 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 the relay control, with the single-chip microcomputer control function added. After the connection is completed, enter the programming interface through the C coding button, enter the correct C language code, submit the verification successfully, turn on the power to operate, and the component, line connection, and code errors will pop up an error box. The scene can be reset at any time.
IV. Fault Description
1. Operation of special tools
2. Refrigeration system pipe welding
3. Refrigeration system pressure test and leak detection
4. Vacuuming and charging of refrigerant in the cold system
5. Refrigeration skills tr*ning (design, installation, commissioning and m*ntenance)
6. Air conditioning control part structure and principle
7. The role of each *r conditioning module in the entire control part
8. Air conditioning electrical control circuit principle
9. Air conditioning electrical component measurement and system operation
10. Air conditioning f*lure and analysis