Modern refrigeration and air -conditioning system experimental device

This device is a tr--ning equipment developed specially developed for professional colleges. According to the characteristics of --r conditioning and refrigerator m--ntenance technology in the refrigeration industry, it is designed for the electrical control of --r conditioners and refrigerators, as well as the installation and m--ntenance of the refrigeration system, and strengthened. Students have comprehensive occupational capabilities such as installation, electrical wiring, system debugging, f--lure diagnosis and m--ntenance of --r -conditioned refrigerators. The device integrates technologies such as fluid mechanics, thermodynamics, heat transfer, and electrical control, which is suitable for teaching and tr--ning in related majors related to refrigeration.

This device consists of --r -conditioning system module, refrigerator system module, power supply and instrument module, --r -conditioning electrical control module, refrigerator electronics temperature control electrical control module, refrigerator smart temperature control electrical control module, etc. Team collaboration capabilities, planning organizational capabilities, installation and commissioning capabilities of refrigeration systems, electrical control circuit m--ntenance capabilities, communication capabilities, occupational literacy and safety awareness.

2. Technical performance

1. Input power supply: single -phase three line 220V ± 10%50Hz

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

3. Device capacity: ≤1.5kva

4. Safety protection: have leakage voltage, leakage current protection, and safety meets national standards

Third, system structure and composition

1. The device adopts a modular design, which is composed of a guide r--l -type aluminum alloy installation platform, --r -conditioning system, refrigerator system, electrical control system and so on.

2. Conduct -type aluminum alloy installation platform consists of standard -specified aluminum alloy industrial profiles. As a platform for students to operate tr--ning, --r -conditioning system components and refrigerator system components are installed on it.

3. *r conditioning system: Including --r -conditioning compressor, indoor heat exchanger, outdoor heat exchanger, four -way directional valve, throwing device, visual liquid lens, --r -conditioning valve, etc.

The heat exchanger is a very commonly used equipment for chemical enterprises, allowing enterprise practitioners to understand the structure, learn to m--nt--n, and disassemble. Therefore, we choose a typical tube heat exchanger for students to master the internal structure, disassembling operation, test pressure checking system operation, and understanding the high -pressure cleaning of the column tube heat exchanger for the internal structure, disassembly operation, and test pressure check. Knowledge of inspection and m--ntenance operation processes such as pipes and leakage.

1. System composition

The heat exchanger disassembling and m--ntenance tr--ning device consists of a column tube heat exchanger, disassembly tool, a leakage tool, shelves, disassembly platform, hand -pier car, etc.

Second, system function

1. Make students understand the structure of the heating shift of the typical fixed pipeline pipe tube of chemical devices. At the same time, the Graphic display board of the U -shaped tube heat exchanger, floating header heat exchanger, and wing tube heat exchanger is used to master the internal structure of different types of heat exchangers.

2. Examine the degree of familiarity with students in the internal structure of the heat exchanger, the degree of knowledge of the safety inspection of chemical equipment and the level of skills.

3. Make students understand the common methods of cleaning the heat exchanger: mechanical treatment, washing and chemical cleaning.

4. Make students master the operating safety operation procedures for the tube tube heat exchangers, shell test pressure, leakage, and leakage.

5. Machinery tr--ning Safety Education Virtual Simulation Software: This software is developed based on Unity3D. The software uses a three -dimensional roaming form. It can control the movement through the keyboard. Basic assessment of the protection design. During the experiment, the three -dimensional roaming screen uses arrows and footprint patterns to move to the experimental location. The circle around the mechanical object shows a working radius. The experimental process is accompanied by a three -dimensional robot dialog box reminder.