Electric refrigerator maintenance training device

The refrigerator device is open design, equipped with refrigeration pipeline equipment, with a variety of circuit schematic tr--ning boards, and install the electrical component required by the circuit on the tr--ning board. Students can perform refrigeration circuit according to the requirements of the circuit schematic diagram Analysis of wiring tr--ning, refrigeration circuit related instruction data, common f--lure analysis of refrigeration circuit, etc. Provides the actual industrial electrical appliances of composite (single -door direct -cold, double -door direct -cold, double -door cold) electrical control lines of refrigerators. Set the fault point arbitrarily. Suitable for technical colleges and vocational schools as tr--ning for basic skills of refrigeration.

Two features

1. The tr--ning device visually shows the system structure and working principle of the direct refrigerator. It can clearly observe the physical objects of the refrigeration circulation system structure and m--n components, which is convenient for teaching demonstration explanations and students' understanding of textbook knowledge. In addition, the pipeline has a visual liquid lens to observe the refrigerant status; the pipelines are labeled with color to facilitate students to identify. The high -pressure pipe road is red and the low -pressure pipe road is blue.

2. The tr--ning cabinet is a str--ght/frost -free refrigerator in the body. The refrigerator system is true and complete, the structure is clear and compact, which is consistent with the actual refrigerator refrigeration system and electrical system. At the same time, it can meet the requirements for direct cold -type refrigerators tr--ning

3. The system adopts a real refrigeration unit (compressor, wing tablet duct evaporator, aluminum composite plate bloating evaporator, steel wire condenser, etc.), which is in line with actual device.

4. The device is equipped with a direct -cooled/inter -cold refrigerator electrical control line wiring area, which can complete the operating mode of different methods, which is conducive to students applying theory to reality and cultivating students' actual operation ability.

5. Simple faults can be set. Students can determine the scope of the f--lure according to the cause of the f--lure of the process to analyze the cause of the f--lure, and do the five. It is conducive to the skills appr--sal and assessment work

6. Manual stream valve: A manual expansion valve is set in the pipe system. During the experiment, you can simulate the flow of traffic in the refrigeration system to observe the effect of refrigerating power.

6. Simulate the --r -cooled frost system, configure a set of simulation cream circuits, which can simulate heating and strong experimentality

7. There is a set of random configuration, refrigeration tools, which can complete the phenomenon of vacuum, cooling agent, treatment of ice blocking, poor refrigeration effects, etc.

It is based on the original "YLBS-X62W ** milling machine electrical skills tr--ning assessment device". connected together. Because the movement of the machine tool shows all the movement of the machine tool, the teaching is more vivid. This device is suitable for the tr--ning and assessment of the electrical part of the machine tools in the early, middle, and ** skills appr--sal of the m--ntenance of electricians (electricians).

 

1. Functional characteristics

 

1. X62W type ** milling machine semi -solid simulation model is referred to the design of the actual X62W type ** milling machine.

 

2. The operation of the electrical section of this set of installations can achieve the various movements of the X62W type ** milling machine. Protect;

 

3. All the contacts in the electrical line of the machine tool have corresponding test points on the panel of the device, which is convenient for students to detect the f--lure;

 

4. The voltage level of all motors on the semi -physical model is exactly the same as the actual machine tool;

 

5. The bed of the semi -real machine tool is cast, and the special mold is formed at one time. The roller screw drive, the hand wheel uses the actual machine tool component, which is close to the real machine;

 

6. Each component of the semi -physical machine tool adopts different colors. During tr--ning, students are easier to understand and accept;

 

7. The surface of the semi -physical machine tool activity r--l adopts a high -frequency quenching process, durable;

 

8. There are 32 switches in the fault box of the control screen. The corresponding fault point can be set by dialing the fault switch.

 

2. Technical performance

 

1. Enter power supply: three -phase and four lines (~ 380V ± 10% 50Hz)

 

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

 

3. Device capacity: <1kva

 

4. Dimensions: 1410mm × 725mm × 1535mm

 

Third, the basic equipment of the device

 

1. Power control panel

 

(1) AC power supply (with leakage protection measures)

 

   Provide three -phase AC power supply (380V)

 

(2) Personal safety protection system

 

   The screen is equipped with a voltage leakage protection device. If there is a leakage in the screen or the strong power output, the alarm and cut off the power to ensure the safety of the experimental process.

 

   There is a set of current leakage protectors on the screen. If there is a leakage in the control screen, the leakage current exceeds a cert--n value, that is, the power supply is cut off.