DYLR-G77 air-water-ground three-source heat pump training device

Release time：2024-06-17 20:30viewed：times

1. Product Overview:
This device is suitable for the teaching and practical tr*ning of courses such as "Refrigeration and Air Conditioning Machinery and Equipment", "Installation, Operation and M*ntenance of Refrigeration and Air Conditioning Devices", "Refrigeration and Air Conditioning Automation and Mechatronics", and "Air Conditioning Technology and Application" in the majors of electromechanical equipment installation and m*ntenance, electromechanical technology application , electrical operation and control , electrical technology application, motors and electrical appliances , refrigeration and *r conditioning equipment application and m*ntenance in higher vocational colleges, secondary vocational schools and undergraduate colleges. 2. Technical parameters Power supply: three-phase five-wire AC 380 V±10%50Hz; maximum cooling capacity: 7.5kW; maximum total input power: 6.5kW; cooling rated power: 7.5.kW ; maximum stall current: 50A; heating rated power: 2.0kW; rated input current: 7A; circulating *r volume: 700m3/h; refrigerant: R22; leakage action current: ≤30mA; noise: 35-40dB (A); safety protection measures: with four protection measures of overvoltage, overcurrent, overload, leakage, and grounding, in line with relevant national standards. 3. Features 1. The central *r conditioning system tr*ning platform is a comprehensive experimental device carefully designed based on the current domestic building electrical and building intelligence. This device combines the advanced technology in the current security field, starts from the requirements of teaching experiments, and fully realizes the working process of the central *r conditioning full *r conditioning system with an engineering design concept. Comprehensiveness: It adopts the domestic advanced secondary return *r system to complete the different refrigeration system working conditions on the same experimental table . Engineering: Most of the entire control system uses industrial field actual application components. Openness: The device adopts a transparent and open design, and students can clearly understand the working principle of the entire system. 2. This system cont*ns two control systems with the same functions: a programmable control system based on plc control, and a configuration control system. Among them: the PLC controller uses Mitsubishi PLC FX3U-48M or a programmable controller of the same or higher grade, and is equipped with a pressure expansion module and two analog acquisition modules, and the display operation is realized through the touch screen. The configuration control system uses the configuration king control software. Through the control panel or module, it can realize all the functions that are exactly the same as the PLC control, and can perform data processing. Data acquisition control can be realized by using the 485 bus external control module of the control computer internal board . 3. Each system has two control methods: manual and automatic. There are two control modes for automatic control: 1). PLC + analog expansion unit + touch screen control mode 2). Based on KingView or software of the same or higher level + PLC (simply processing switch quantity) + configuration control. 4. Monitor the system operation condition through KingView or software of the same or higher level on the host computer; collect temperature and other related system parameters through PLC analog module to control the whole system automatically. 5. The control process of the system can be changed by editing the PLC program. 6. Configuration software: Use the configuration software to remotely monitor the real-time operation status of the central *r conditioner on the host computer, realize the centralized management of the whole system, monitor, dispatch and manage the controlled equipment, and realize the linkage control of the equipment; when the object is not connected, the central *r conditioner electrical system troubleshooting tr*ning can be completed. 7. Dynamic display of temperature at each key point, including: current value of heating, current value of cooling, boiler inlet, boiler outlet, cooling tower inlet, cooling tower outlet, condenser inlet, condenser outlet, evaporator inlet, evaporator outlet, simulation room I, simulation room II. 8. Fault settings are as follows: cooling water pump fault, cooling fan fault, refrigeration water pump fault, compressor fault, solenoid valve 1 fault, solenoid valve 2 fault, hot water pump fault, sensor fault. 9. Control cabinet: adopts iron double-layer matte dense pattern spray structure; the front door adopts transparent design, and the control components such as central controller, contactor, thermal protector can be observed; there are control switch knobs, working status indicator lights, system flow charts, PLC host units and test points on the panel. 10. Measuring instruments, power supply voltage indication unit: provide 1 AC voltmeter and 1 AC ammeter to measure the system grid voltage and the working current of the compressor, cooling water pump, and chilled water pump; refrigeration system pressure detection unit. 11. Provide 2 vacuum pressure gauges and 1 dual-group pressure controller, with measurement ranges of -0.1～1.5MPa and -0.1～3.5MPa respectively, which can display the pressure changes on the low-pressure side and high-pressure side of the system compressor, and protect the compressor. 12. The device can realize two control modes: manual control and computer control. (1) The manual control button is installed on the control cabinet door and connected to the corresponding input variables of the PLC, which can directly control the entire central *r conditioner; (2) Computer control: communicate with the on-site computer to realize remote control of the central *r conditioner. 13. System schematic diagram: A central *r conditioning system flow chart is drawn on the control panel, and logos, fonts, and flow charts are sprayed on the corresponding components on the control panel. 14. Teacher's end: Simulate the various work processes of the central *r conditioner in the form of FLASH animation on the monitoring host system, including normal work processes and fault work processes. The central *r conditioning animation/control/monitoring host system should include four parts: (1) System composition: compressor, cooling pump, cooling fan, fan coil, water distributor, water collector, surface cooler, etc.

(2) System animation demonstration: the principle process of compressor system, refrigeration system, heating system, wind system, centralized *r supply system, and semi-centralized *r supply system. (3)
System fault operation demonstration: when equipped with a physical central *r-conditioning tr*ning and assessment device, the system animation is synchronized with the physical real-time fault when the software demonstrates the fault.
(4) Remote independent monitoring: the system can independently monitor the working status of the central *r-conditioning touch screen, and can remotely monitor the students' tr*ning situation in real time.
15. Configure a water-cooled unit with a cooling capacity of 3 or more:
configure a set of water distributors to distribute and adjust the cooling capacity, and use three control modes to control the entire *r-conditioning operation; the *r-conditioning operation parameters can be displayed and monitored in real time on the computer, and remote control can be achieved through the network.
16. Chilled water system and refrigeration system:
configure 2 cooling water pumps, 2 chilled water pumps, and 1 hot water pump.
17. Central *r-conditioning terminal system: consists of a simulation room and a combined wind cabinet. The simulation room adopts industrial standard aluminum profiles with specifications of about 30′30cm and double-sided p*nted wood board structure. The interior is equipped with the same fan coil as the real *r conditioning terminal, with three-level speed regulation; the combined wind cabinet system consists of return *r outlet, new *r mixing outlet, blower, evaporator, pipeline, and solenoid valve.
18. The front of the combined wind cabinet adopts transparent acrylic plate with a thickness of 35mm.
19. Central *r conditioning refrigeration and heating circulation transmission pipeline: aluminum-plastic pipe and copper parts are connected, and marked with obvious direction signs; adjust the wind speed switch or *r volume according to the needs. Thermocouple temperature measurement is adopted, and the A/D conversion of external data acquisition equipment is converted into digital quantity, which is sent to the computer through the RS232 serial port for processing to realize temperature display, alarm, recording and other functions.
IV. Configuration of the device
1. Control system configuration:
This system includes two control systems with the same functions: a programmable control system based on PLC control, and a configuration control system. Among them: PLC controller uses Mitsubishi PLC FX3U-48M or programmable controller of the same or higher grade, and is equipped with 1 pressure expansion module and two analog acquisition modules, display operation, and is realized through touch screen. Configuration control system uses Kingview control software. Through control panels or modules, it can realize all functions exactly the same as PLC control, and can process data. Data acquisition control can be realized by using 485 bus external control modules of the internal board of the control computer.
2. Each system has two control methods: manual and automatic. Automatic control has two control modes:
1). PLC + analog expansion unit + touch screen control mode
2). Based on Kingview or software of the same or higher grade + PLC (simply processing switch quantity) + configuration control.
Iron double-layer matte dense spray structure, the structure is sturdy. The front door adopts a transparent design, and the control components such as the central controller, contactor, and thermal protector can be observed. There are control switch knobs, working status indicators, system flow charts, PLC host units and test points on the panel.
MCU , 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 through 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 lid. 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 successful verification, turn on the power to operate. Error boxes will pop up for components, line connections, and code errors, 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. Error boxes will pop up for components, line connections, and code errors, and the scene can be reset at any time.
3. AC power control unit:
three-phase four-wire AC 380V power supply, and a leakage protector is provided to control the total power supply of the control panel.
4. Simulated fault:
The simulated fault setting is completed in combination with the software. Students analyze the possible causes of the fault according to the process, determine the scope of the fault, and troubleshoot.
5. Measuring instruments
1) Power supply voltage indication unit: Provide 1 AC voltmeter and 1 AC ammeter to measure the system grid voltage and the working current of the compressor, cooling water pump, and chilled water pump. Refrigeration system pressure detection unit:
6. The device can realize two control modes: manual control and computer control:
A. The manual control buttons are on the door of the control cabinet. These control buttons are connected to the corresponding input variables of the PLC, and can directly control the entire central *r conditioner;
B. Computer control uses configuration technology to establish stable communication between the computer and the PLC, thereby controlling the entire central *r conditioner and realizing various functions such as display and analysis of *r conditioner operation data. At the same time, it can also establish communication between remote computers and on-site computers through network upgrades to realize remote control of the central *r conditioner.
Control cabinet configuration table

serial number	name	unit	quantity
1	Power distribution control cabinet, network cabinet	set	1	1800700700MM, with blue frame structure and white as matching color, front and back doors, convenient for practical tr*ning, the front door is decorated with glass, beautiful and generous (panel: iron panel, laser engraving, color printing)
2	Three-phase 4P with leakage switch	Only		32A
3	Three-phase insurance	tower	1	32A
4	450V ammeter, 30A ammeter	indivual	1	6L2
5	Button	set	8
6	Switching power supply: Provide power for the control system	set	1	Q60.: Provide +24V.+5V
7	Intermediate relay	set	8	24V
8	AC contactor	set	13	220V
9	12-position terminal block	set	4
10	3-position terminal block	Only	14
11	7-inch color touch screen	Only		Kunlun News
12	Communication line	Only	1
13	Hot water pump	indivual	1
14	Central r conditioning control trning software	set	1
15	Experimental operation instructions	set	1
16	PT100 sensor	Only	6
17	PLC, FX3U-48M	tower	1
18	Data acquisition system temperature acquisition module, FX2N-4AD-PT	set	3
19	Pressure acquisition module, FX2N-2AD	piece	1
20	Pressure transmitter, 0-10V	Only	2
twenty one	Communication Module	set	1

8. The central *r conditioning tr*ning and assessment device uses a 3-horsepower water-cooled unit: it
provides a cold source for the whole system, and uses a set of water distributors to distribute and adjust the cooling capacity. The entire central *r conditioning uses PLC as the m*n control machine. The computer communicates with the PLC through the communication line to control the operation of the entire *r conditioning. Remote control can also be achieved through the network. The operating parameters of the *r conditioner are collected by sensors and transmitters, and then sent to the PLC after conversion through the A/D module, and then sent to the computer by the PLC for real-time display and monitoring.
Chiller Configuration Table

serial number	name	unit	quantity
1	Compressor (3P)	tower	1	Scroll compressor, under the same power, scroll compressor can provide a larger refrigeration compression ratio
2	Evaporator, dry 3P	Only	1	304 stnless steel, with 19MM stnless steel tube as the evaporator, which overcomes the problem that the acid-base ratio of water in some areas is high and it is easy to damage the evaporator (copper is generally damaged in 3 years)
3	Simulated boiler	tower	1	40L
4	Liquid reservoir 2P	indivual	1
5	Water condenser	set	1	304 stnless steel, with 19MM stnless steel tube as the evaporator, which overcomes the problem that the acid-base ratio of water in some areas is high and it is easy to damage the evaporator (copper is generally damaged in 3 years)
6	3T cooling water tower	set	1
7	Cooling fan	indivual	1	Axial flow FN suction type - 220/300MM
8	Thermal Expansion Valve	Only	1	Danfoss Import
9
10	Hand valve	Only	4	Cont*ns: 1 filling valve, 1 stop valve, 2 high and low pressure sensor stop valves
11	Angle valve		2	2 refrigerant recovery valves
12	High and low pressure gauge	Only	2
13	Cooling valve	indivual	4	Adopt brass lifting gate valve, structure: multi-turn handwheel type
14	Cooling water pump	Only	2	One is used as the mn pump and the other is used as a backup cooling water pump. When the mn pump is damaged, the backup water pump can be started

9. Chilled water system and refrigeration system:
The water system is the nerve terminal system of the central *r conditioner, providing refrigerant water and hot water to the end users. The system is equipped with 2 cooling water pumps (one of which is a spare), 2 chilled water pumps, and 1 hot water pump. A set of water distributors is used to distribute and adjust the cooling capacity. The entire central *r conditioner uses PLC as the m*n control machine. The computer communicates with the PLC through the communication line to control the operation of the entire *r conditioner. Remote control can also be achieved through the network. The operating parameters of the *r conditioner are collected by sensors and transmitters, and sent to the PLC after conversion through the A/D module, and then sent to the computer by the PLC for real-time display and monitoring.
Chilled water and heating machine configuration table

serial number	name	unit	quantity
1	Trap	set	1	One inlet and four outlets: Made of 304 stnless steel, with a drn port to dr*n the water in the device when it is not in use
2	Water distributor valve	indivual	5	Adopt brass lifting gate valve, structure: multi-turn handwheel type
2	Water collector	set	1	One inlet and four outlets: Made of 304 stnless steel, with a drn port to dr*n the water in the device when it is not in use
3	Water collector supporting valve	indivual	5	Adopt brass lifting gate valve, structure: multi-turn handwheel type
2	Stnless steel water tank 400300*350	set	1	Stnless steel water tank 400300*350
5	Refrigeration water pump	Only	2	One is used as the mn pump and the other is used as a backup cooling water pump. When the mn pump is damaged, the backup water pump can be started
6	Refrigeration valves	indivual	5	Adopt brass lifting gate valve, structure: multi-turn handwheel type
7	Refrigeration water pump	Only	2	One is used as the mn pump and the other is used as a backup cooling water pump. When the mn pump is damaged, the backup water pump can be started
8	Heating valve	indivual	2	Adopt brass lifting gate valve, structure: multi-turn handwheel type
9	Hot water pump	Only	1
10	Pipeline			Adopt new aluminum-plastic pipe structure: the pipe is double-layer plastic with 0.1MM aluminum in the middle, durable and pressure-resistant, and can be folded and assembled repeatedly
11	Brass connector	Only	80	The joints use 6-point brass joints, which can be disassembled and assembled repeatedly without damage.

10. Central *r conditioning terminal system:
It consists of a simulation room and a combined wind cabinet. The simulation room adopts 30*30 industrial standard aluminum profile and double-sided p*nt wood structure, and is equipped with the same fan coil as the real *r conditioning terminal, with three-level speed regulation, which can be freely adjusted by the user by adjusting the switch. The combined wind cabinet system consists of return *r vents, fresh *r mixing vents, blowers, central *r conditioning evaporators, pipes, and solenoid valves.
Central *r conditioning terminal system is set

serial number	name	unit	quantity
1	Simulated guest room	set	1	2000900800, aluminum-wood structure with four wheels for easy movement, door made of plexiglass for improved practicality
2	Room fan coil	set	1	F34 function: three-speed wind speed adjustment
3	Wind speed adjustment switch			Type 86
4	Return *r vent	set	1
5	Air mixing vents	set	1	With adjustment function
6	Air supply duct	set	1	PVC
7	Combined wind cabinet	set		Made of PV panels, it has good thermal insulation effect and will not condense.
8	Blower	indivual	1	300MM, *r volume 2800/S
9	Central *r conditioning professional cooling	indivual	1	20 square meters

V. Tr*ning content
1. Tr*ning on the structure and equipment of central *r conditioners;
2. Tr*ning on starting and stopping central *r conditioners;
3. Tr*ning on the operation and adjustment of central *r conditioners;
4. Tr*ning on the detection of the operating conditions and operating parameters of central *r conditioners;
5. Tr*ning on advanced programming of programmable controllers PLCs and installation, wiring and debugging of PLCs;
6. Tr*ning on matching pressure and temperature sensors and corresponding A/D conversion function modules, which can collect data and monitor the operation of the entire central *r conditioner in real time;
7. Tr*ning on the application of configuration technology: using configuration technology to realize animation display of central *r conditioner operation, operation data display, real-time monitoring, configuration and other functions;
8. Remote control tr*ning;
9. Network installation and setting tr*ning;
10. Sensor and transmitter installation and use tr*ning.
11. Touch screen tr*ning
12. Use of touch screen and PLC communication
13. Control/monitoring tr*ning.
14. Cooling water pump f*lure tr*ning
15. Cooling fan f*lure tr*ning
16. Refrigeration water pump f*lure tr*ningThe *r-water-ground three-source heat pump experimental device and the three-source heat pump system tr*ning platform are equipped with a set of water distributors to distribute and adjust the cooling capacity, and three control modes are used to control the entire *r-conditioning operation; the *r-conditioning operation parameters can be displayed and monitored in real time on the computer, and remote control can be achieved through the network.

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