DYLR-BD Semiconductor Refrigeration Technology Training Platform
Release time：2024-06-16 23:30viewed：times
1. The device features
1. It uses high-power semiconductor refrigeration components as the cold source, does not require dry ice, ammonia, nitrogen, Freon and other refrigerants, has low temperature, fast cooling and long life. It is pollution-free, noise-free, vibration-free, wear-free and can work continuously.
2. Strong intuitiveness: You can intuitively observe the whole process of ice formation at the cold end of the refrigeration plate and deeply understand the working principle of the semiconductor refrigeration plate.
3. Strong operability: The button switch provided on the panel can conveniently switch the working state of the semiconductor refrigeration plate, which can not only qualitatively observe the tr*ning phenomenon, but also quantitatively measure it through measuring instruments.
II. Technical performance
1. Input power: single-phase three-wire ~ 220V ± 10% 50Hz
2. Working environment: temperature -10℃ ~ +40℃ relative humidity <85% (25℃) altitude <4000m
3. Device capacity: <0.8kVA
4. Dimensions: 1200mm×730mm×1400mm
5. Safety protection: with leakage protection device, safety meets national standards
III. Basic configuration and functions of the tr*ning device
The tr*ning device consists of a control panel, a tr*ning table and a semiconductor refrigeration unit
(I) Control panel (iron double-layer matte dense spray structure, aluminum panel)
1. DC digital voltmeter (1): measurement range 0~20V, button switching gear, using three-and-a-half-digital display, accuracy 0.5%. Input impedance is 10MΩ. By switching the keys, the input voltage of semiconductor refrigeration piece A, the input voltage of semiconductor refrigeration piece B, the output voltage of semiconductor refrigeration piece A, and the output voltage of semiconductor refrigeration piece B can be displayed respectively.
2. DC regulated power supply (2): Provides a continuously adjustable DC power supply of 0-15V, with a current of 10A, to provide power for the semiconductor refrigeration piece.
3. Timer: When the reset button is pressed, the timing starts in seconds.
4. DC digital ammeter (2): The measurement range is 0-10A, with a three-and-a-half-digit digital display and an accuracy of 0.5%. The DC digital ammeter (I) displays the input current of semiconductor refrigeration piece A, and the DC digital ammeter (II) displays the input current of semiconductor refrigeration piece B.
5. Temperature controller (3): PID intelligent temperature regulator, with PID intelligent temperature control plus AI artificial intelligence adjustment function, can monitor the cold and hot end temperature of semiconductor refrigeration piece A, the cold and hot end temperature of semiconductor refrigeration piece B, and the temperature of the cont*ner respectively.
6. Heater (2): The power is 180W. When the refrigeration piece is working in the heat engine, the heater heats its surface.
7. Micro water pump (1): Circulate the water cooling liquid to dissipate the heat of the hot end of the semiconductor cooling plate.
8. Music plate and DC motor : When the semiconductor cooling plate works in the heat engine, the output voltage can drive the music plate and DC motor.
9. 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 line, power on, circuit diagram, scene reset, return and other buttons. After the connection and code are correct, the 3D machine tool model can be operated by the start/stop, forward movement, and reverse movement buttons . 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 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, and turn on the power to operate. The error box will pop up for component, line connection, and code errors. The scene can be reset at any time.
(II) Tr*ning table
The tr*ning table is an iron double-layer matte dense spray structure. The desktop is a fireproof, waterproof, wear-resistant high-density board with a solid structure and beautiful shape. The desktop is used to install the power control panel and provide a spacious and comfortable work surface with two drawers. The tr*ning table is also equipped with four universal wheels for easy movement and fixing.
(III) Semiconductor refrigeration unit The water-
cooled semiconductor refrigeration unit composed of two semiconductor refrigeration plates, a water cooling head, a heat sink, a water pump, a water cooling liquid, a water pipe, a plexiglass water tank, a heat transfer aluminum plate, etc. can intuitively observe the working principle and phenomenon of the water cooling system.
IV. Tr*ning Projects 1. Understanding of
semiconductor refrigeration tr*ning platform
2. Working principle of semiconductor refrigeration chip when working in heat pump
3. Parameter test of semiconductor refrigeration chip when working in heat pump
4. Working principle of semiconductor refrigeration chip when working in heat engine
5. Parameter test of semiconductor refrigeration chip when working in heat engine
Wechat scan code follow us
