Digital Electric Modeling Experiment

 

The experimental table has more comprehensive safety protection measures and more complete functions. The center of the experimental table is equipped with a universal circuit board, and the circuit board is injected into injection. The surface cloth has porous into a set of connecting jacks. The component box is freely inserted into an experimental circuit. The intuitiveness is good. Component symbols, clear and beautiful lines. The box body and the lid adopt a more scientific card structure, which is convenient for m--ntenance and disassembly. The components are placed in the left and right cabinets under the experimental table, which greatly improves the level of management and the degree of planning, which greatly reduces the preparation of teachers' experiment.

 

2. Experimental table and operating table structure:

 

1. Experiment table shell size: 123 × 35 × 20cm

 

2. Three -phase insurance seat

 

3. Three -phase power input indicator

 

4. Total switch: Total switch of the experiment platform, leakage and overload protection

 

5. Test button: Test leakage switching leakage function

 

6. Power input indicator 1

 

7. The power supply output indicator 3 (red, green, yellow three color)

 

8. AC voltage table: indicate output cable voltage

 

9. Voltage conversion switch: Combined with the voltage meter, monitor the size and symmetry of the output cable voltage

 

10. 5 Wiring seats: Unit A, three -phase, four lines and ground line output

 

11. Current meter W phase current output instruction

 

12. O/i switch: three -phase four -wire power supply output control

 

(Improve the safety factor)

 

13. Two wiring seats: Union B AC low -voltage power output

 

14. Power Table (2A): Unit B AC current instructions

 

15. Knob: Union B 3-24V AC low pressure selection output

 

16. Switch: Union C Drinks DC voltage voltage pressure power switch

 

17. Knob: Union C dual road Ⅰ road steady stream adjustment

 

18. Knob: Union C, Double Road II Road Stabilization Adjustment

 

19. Two wiring seats: Unit C Road Ⅰ DC stabilization output

 

20. Insurance seat: Union C dual -road voltage pressure power insurance

 

twenty one. 4 meters: dual -road voltage power supply voltage, current indication

 

twenty two. Wiring seat: Union D DC 5V Voltage Output

 

twenty three. Electric meter: Union D current 0.5V output instructions

 

twenty four. Switch 1: Control each low -voltage AC power and signal source

 

25. Switch 2: Control the DC pressure regulation power supply

 

26. Electric meter: Unit A AC voltage output instructions

Features:

1. Safety protection: There are voltage leakage protection, current leakage protection, overcurrent protection, overload protection, grounding protection.

2. The 1 -refrigeration unit is used. The condenser and the evaporator are water exchangeers. The system structure is compact, reasonable, and beautiful.

3. This device is suitable for teaching experiments in related courses related to the cold majors in colleges and universities. It can not only set up a measurement experiment for the performance parameters of the refrigeration compressor, but also perform demonstration experiments on the basic principles of refrigeration cycle.

Device function:

1. Refrigeration and heating experiments under standard conditions;

2. Simulation to produce the effects of the changes in the parameters of each refrigeration system on refrigeration performance and heating energy ratio;

3. Carry out the refrigeration cycle and heat pump demonstrations. Observe the phenomenon of evaporation, condensation process and compressor of refrigeration;

Study the refrigeration efficiency and refrigeration coefficient of compressor at different cooling temperatures;

4. Test methods for refrigerating the refrigerator's refrigerator;

5. The relationship between evaporation temperature, condensate temperature and refrigeration;

6. The m--n operating parameters and its influence between the refrigeration system.

M--n configuration:

Fully closed refrigeration compressor, condenser, throttle valve, evaporator, cold water pump, hot water pump, turbine flowmeter, water tank, electric heating device, temperature sensor, high and low voltage controller, dry filter, liquid storage tank, power table, power table , Pressure gauge, aluminum alloy framework, electrical control system, touch screen, software, etc.

public facilities:

Enter power supply: single -phase three -line AC220V ± 10% 50Hz 50Hz

Working environment: temperature -10 ℃ ～+40 ℃ relative humidity <85%(25 ℃) altitude <4000m

Device capacity: <2.5kva

Refrigerator: R22

Refrigeration: 1.3KW