Description
The training platform adopts the real control circuit of the piston type chiller as the object of practical training and assessment, which is suitable for the preliminary, middle and advanced practical training and assessment of refrigeration maintenance engineering.Overall characteristics of the training sets is the piston type chiller real control circuit amplification reasonable printed on a 1135 mm * 690 mm alumina panel, corresponding to control electrical, checkpoint, inspection points, can be convenient, fast, the demonstration of piston water chiller startup, demonstration and teaching sex is very strong, make the teacher’s related refrigeration teaching easier and also make the students to master relevant technical skills become easy to understand.
Functions and training items
1. Poor contact of leakage protection switch output line L (circuit breaker)
2. Water flow protection normally closed contact is disconnected
3. The normally closed contact is protected by low water temperature
4. Overload protection of CB1 normally closed contacts are disconnected
5. The normally closed contact with high pressure protection is disconnected
6. Low-pressure protection normally closed contact is disconnected
7. Exhaust temperature protection normally closed contact circuit breaking
8. CR1 circuit breaker
9. Frequently open contacts of CR2 are disconnected
10. The normally open contact of CR1 is disconnected
11. Power supply solenoid valve coil break
12. CR3 normally open contacts are disconnected
13. C1 coil break
14. CR3 coil break
15. CR2 circuit breaker
16. CR4 circuit breaker
characteristics
The device is based on the electrical control circuit of the piston chiller as the object of practical training. Students can master the electrical control principle of the piston chiller by learning and training the device.
The device is composed of a desk, a power station, an electrical training test board for a piston chiller and an intelligent test system for yalong.The inspection board is provided with the electrical diagram of the piston type chiller and corresponding detection points, and is equipped with:
1. High and low voltage protection simulation device
2. Water flow protection simulation device
3. Temperature protection simulation device
4. Timer simulator
5. Temperature control simulator
Each fault simulation device can simulate the change of parameters of the real piston chiller in operation, and can switch between automatic simulation and manual simulation on the spot.The effect is obvious and easy to understand.
Students through the examination board on the circuit diagram to understand the training device of electric control principle, according to the yalong intelligent inspection system will try to edit good questions sent to each examination students machine computer, training students’ computer according to the test question content on the air conditioning system to produce the corresponding point of failure, students through the analysis of the fault phenomenon after judgment, with the instrument on the check point for testing to find the location of the point of failure, so as to improve the theoretical level and maintenance of personal skills.The school provides a good training and assessment platform for technicians.Facilitate school teaching and students to master skills.
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