DYLR-HS Household Central Air Conditioning Assessment and Training Platform

Release time：2024-06-17 02:30viewed：times

1. Product Overview
The ZRLR-HS household central *r conditioning tr*ning and assessment device is a high-efficiency refrigerant *r conditioning system that uses variable frequency compressors, electronic expansion valves and advanced control systems to control the refrigerant circulation volume of the compressor and the refrigerant flow entering the indoor heat exchanger in the electric *r conditioning system, and meets the indoor cooling and heating load requirements in real time. VRV *r conditioning system has many advantages such as energy saving, comfort, stable operation, and relatively small building space occupied. It can better meet the personalized use requirements of users and is widely used in buildings ranging from several hundred to twenty thousand square meters.
2. M*n features
1. The system uses VRV units, which are characterized by excellent quality, small size, and compressor variable frequency adjustment. The adjustable range of the variable frequency compressor is between 48% and 104% of its rated capacity. Its energy adjustment must take into account the time required for the compressor frequency adjustment. Due to the dynamic characteristics of the variable frequency compressor itself, the energy should be less than a cert*n speed when adjusting, so the adjustment is step-by-step and stage-by-stage adjustment; and the speed of the compressor motor changes proportionally according to the indoor *r conditioning load.
2. Diversification of system terminal processors: Let students understand the diverse structural forms of indoor units. Each terminal processor is equipped with a refrigeration system flow board, a control circuit flow board, a temperature gauge and a pressure gauge, and all control circuits of the unit can be observed.
3. System integrity and independence: The control function, protection function and display function are completely consistent with those of actual household central *r conditioners, and each user terminal can be independently controlled under the same working conditions.
The operating table only needs an AC 220V power supply to be put into use, which occupies a small area, saves space and reduces infrastructure investment.
4. The device intuitively displays the system structure and working principle of household central *r conditioners, which is convenient for teachers to demonstrate and expl*n and for students to understand and master textbook knowledge. Reasonable structure and beautiful shape The device has a reasonable and compact structure and beautiful shape. The tr*ning table is also equipped with four universal wheels and four fixed adjustment mechanisms for easy movement and fixation.
The tr*ning device system is equipped with a simulated fault setting function to set faults in the refrigeration system and electrical system. Improving students' analytical ability through specific phenomena is conducive to students applying theory to practice and cultivating their practical hands-on ability.
5. It is equipped with a current-type leakage protection device. When the ground leakage current exceeds a cert*n value, it trips and cuts off the power supply; and there are thermal protection devices to protect the compressor from overheating and overload.
6. 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 diagrams, component lists, connection lines, power on, circuit diagrams, 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 motion, and reverse motion 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 3D machine tool model. You can choose to cover the cover. Some component names can be renamed. Then click the connection line button to connect the terminals to 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, and the scene can be reset at any time.
2.PLC control: The experiment is the same as relay control, with the addition of PLC control function. After the connection is completed, enter the program writing interface through the PLC coding button, write two programs, forward and reverse, with a total of 12 ladder diagram symbols. After the writing is completed, select Submit for program verification. After the verification is successful, turn on the power to operate. Components, line connections, and code errors will pop up prompt error boxes, and the scene can be reset at any time.
3. Single-chip microcomputer control: The experiment is the same as relay control, with the addition of single-chip microcomputer control function. After the connection is completed, enter the programming interface through the C coding button, enter the correct C language code, and submit the verification successfully. Turn on the power to operate. Components, line connections, and code errors will pop up prompt error boxes, and the scene can be reset at any time.
3. Intelligent tr*ning and assessment system:
The system is randomly set by the computer. The intelligent tr*ning and assessment system is equipped with intelligent assessment software and intelligent touch-type answering machine. Students can exchange data with the teacher's computer through the answering machine, and can perform statistical analysis on the student assessment situation. The specific functions are as follows:
1. The computer can monitor 1-126 household appliances intelligent assessment tables
2. Multiple fault points have been set.
3. 4. With the function of issuing papers 5.
With the function of collecting papers 6. With the function of clearing
single and all experimental tables
7. With the function of automatically detecting the communication connection status of each household appliance assessment table
8. Can generate student personal transcripts
9. Can
modify the password after entering the system
10. With the function of printing
11. With the function of limiting the number of answers
12. The student table is equipped with an intelligent answering device, and students can exchange data with teachers through the answering device
13. The intelligent answering device must be external.
14. With the function of single-point assessment.
15. With the optional function of issuing test questions for a single table and issuing test questions for all experimental tables.
16. Intelligent network examination system software.
IV. Technical parameters
1. Power supply: three-phase five-wire AC380V±10%50Hz outdoor unit total current 25A
2. Working environment: temperature -10℃~+40℃ relative humidity ≤85% altitude ≤4000m
3. Adopting microcomputer frequency conversion control, centralized control and m*ntenance can be realized through the bus.
4. With a dedicated data acquisition system, parameter detection, fault recording, data curve, etc. can be realized on the host computer .
IV. System composition
Air conditioner outdoor unit, various types of indoor units, fresh *r ventilator, refrigerant pipeline, manifold, condensate pipeline, *r supply pipeline, *r outlet, outdoor unit controller, indoor unit controller, centralized controller, host computer m*ntenance workstation, communication converter, power distribution system

Serial number	name	M*n components, devices and specifications	quantity
1	Simulation room (fan coil type)	Length × width × height is 100cm × 100cm × 215cm. Fan coil indoor unit parameters: Cooling capacity: 2.0kW, Heating capacity : 2.0)kW, Circulation *r volume: 270m3/h, Connection method: Bell mouth connection	3 sets
2	Outdoor unit (H*er or Hisense)	Rated cooling capacity: 8.0kW, Rated cooling capacity: 8.0kW, Refrigeration comprehensive performance system, Energy efficiency level: N1, Compressor: DC variable frequency dual rotor, Refrigerant: R410a, Charge volume: 4.0kg, Connection method: Bell mouth connection	1 set
3	gauge	Earthquake-resistant vacuum pressure gauge: range -0.1～1.5MPa, -0.1～3.5Mpa;	4 sets
4	wrench	0-300mm	2
5	screwdriver	Cross	1
6	Hexagon wrench	6mm	1
7	Instruction Manual		1 serving
8	Product Test Manual		1 serving
9	Thermometers	Measuring range: -40℃～70℃	6
10	Hand valve	1/4	4
11	Central *r conditioning controller		3
12	M*ntenance software		1
13	Intelligent assessment system
14	Assessment software
15	Central *r conditioning bracket	Aluminum alloy 1100MM1100MM2000MM	4 sets
16	Air conditioning process board	Iron plate spray p*nting panel	4 sets
17	Pipeline system		1 set
18	Divider		4 sets

V. Tr*ning projects
[I] Junior worker tr*ning:
1. VRV *r conditioning system recognition and operation
2. Basic knowledge of electrical control principles of outdoor units
3. Basic knowledge of electrical control principles of indoor units (three types of indoor units)
4. Refrigeration system process
5. System operation under different working conditions
6. System fault simulation setting
[II] Intermediate worker tr*ning:
1. Central *r conditioning system installation and commissioning
2. Central *r conditioning system installation
3. Central *r conditioning control system installation
4. Central *r conditioning project commissioning
5. Installation methods and standards for outdoor units and indoor units
5. 6. Installation methods and standards for piping systems
6. Installation methods and standards for power distribution and control systems
7. 8 M*n contents, steps and methods of project commissioning
8. Common problems in refrigeration systems
9. 10. Common problems in power distribution systems
10. Common problems in control systems
11. 12. Refrigeration performance test
13. Experimental study on operating parameters, energy consumption, energy efficiency ratio, and factors affecting energy efficiency ratio and energy consumption
14. Experiment II: Heating condition (heat pump) performance test
[III] Electrical assessment tr*ning:
1. Conventional fault diagnosis and analysis
2. Microcomputer fault diagnosis and analysis
3. High voltage protection tr*ning
4. Indoor sensor tr*ning
5. Communication circuit tr*ning
6. Indoor unit three communication fault
7. Indoor unit two communication fault
8. Indoor unit one communication fault
9. Indoor two sensor tr*ning
10. Indoor three sensor tr*ning
11. Indoor unit installation and setting tr*ning
12. Control panel fault analysis
13. Analysis of the phenomenon of reducing indoor unit

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