DYCBK-03 ship air conditioning assessment experimental device

Release time：2024-07-03 20:30viewed：times

1. Product Overview:
The marine *r conditioning tr*ning and assessment device is a product developed and manufactured in accordance with the teaching requirements of the Education Industry Standards of the People's Republic of China ( Standards for the Equipment and Equipment of Refrigeration and Air Conditioning Application and M*ntenance Professionals) and the Ministry of Education's "Revitalization of Vocational Education Curriculum Reform and Textbook Construction Plan for the 21st Century", combined with production practice and the skill requirements of professional positions, and in accordance with the teaching, tr*ning and experimental requirements of vocational and undergraduate colleges. The device is suitable for the teaching and 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 higher vocational colleges, secondary vocational schools, and undergraduate colleges for majors such as electromechanical equipment installation and m*ntenance, electromechanical technology application, electrical operation and control, electrical technology application , motors and electrical appliances, and refrigeration and *r conditioning equipment application and m*ntenance. The device is also suitable for the appr*sal and assessment of intermediate and senior workers and technicians in refrigeration and related majors, and the design and development of central *r conditioning projects.
II. Features
1. Fully physical tr*ning teaching This device miniaturizes the ship *r conditioning and ensures the integrity and rationality of the entire central *r conditioning system. The whole set of tr*ning equipment can demonstrate the summer refrigeration cycle and the winter heating cycle. The evaporator, condenser, cooling tower, and simulated boiler are equipped with temperature measurement points to facilitate students to observe and understand the changes in various parameters and the working conditions of the system. And some auxiliary configurations have been added to allow students to fully master the skills and knowledge of central *r conditioning.　
2. The ship *r conditioning tr*ning device has electric drag control, automatic control, and manual control modes, and is equipped with temperature sensors and acquisition instruments.
3. Strong intuitiveness: The ship *r conditioning device adopts an open design, and the control circuit and refrigeration pipeline system are directly displayed. The devices are labeled with names, and students can intuitively recognize various devices.
4. Strong tr*ning: It can carry out actual circuit control electrical industrial automation tr*ning refrigeration system and system full-process work tr*ning.
5. The device is equipped with a manual expansion valve, which can replace the thermal expansion valve when the automatic thermal expansion valve is damaged.
6. Fault alarm system. When the equipment f*ls, the fault alarm system will automatically ring.
7. The m*n compressor is equipped with a refrigeration energy regulating valve device, which can protect the refrigerant flow supply of the compressor when it is working in a single cold storage.
8. The high-temperature storage is equipped with an evaporator pressure regulating valve, which can freely adjust the temperature of the high-temperature storage.
9. The intermediate subcooler prevents the compressor from wet stroke and protects the compressor from excessive return *r cooling.
10. Refrigeration system f*lure simulation: In the refrigeration system, manual stop valves are installed on the high-pressure outlet, return *r pipeline, and condensation outlet to simulate common refrigeration f*lure phenomena such as high-pressure exhaust f*lure, condenser blockage, and weak *r intake.
11. High-pressure and low-pressure system f*lure: The system is equipped with real high-pressure and low-pressure protectors. During the simulated f*lure process of the refrigeration pipeline, the high and low pressure switches will be activated, thereby causing a system f*lure and starting the compressor protection circuit to stop the m*n unit.
12. Single-chip microcomputer , PLC programmable design and control virtual simulation software (copyright certificate and demonstration video are required):
1) 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 model can be operated by the start/stop, forward movement, and reverse movement buttons . When the line is connected, the 3D machine model can be enlarged/reduced and translated.
2) 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 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 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.
3) plc control: the experiment is the same as relay control, with the addition of PLC control function. After the connection is completed, press the PLC coding button to enter the program writing interface, write two programs, forward and reverse, with a total of 12 ladder diagram symbols. After writing, select Submit to verify the program. After successful verification, turn on the power to operate. Errors in components, line connections, and code will pop up prompt error boxes, and the scene can be reset at any time.
4) MCU control: the experiment is the same as relay control, with the addition of MCU control function. After the connection is completed, press the C coding button to enter the programming interface, enter the correct C language code, and submit the verification successfully. Turn on the power to operate. Errors in components, line connections, and code will pop up prompt error boxes, and the scene can be reset at any time.
3. Technical parameters
1. Power supply: three-phase five-wire AC 380 V±10% 50Hz;
2. Maximum cooling capacity: 7.5kW;
3. Maximum total input power: 6.5kW;
4. Refrigeration rated power: 3.8kW;
5. Maximum stall current: 50A;
6. Rated input current: 7A;
7. Circulation *r volume: 700m3/h;
8. Refrigerant: R22;
9. Leakage action current: ≤30mA;
10. Safety protection measures: It has four protection measures: overvoltage, overcurrent, overload, leakage, and grounding, which meet the relevant national standards.
11. Dimensions: 200cm×200cm×100cm
Configuration of four devices
The tr*ning device is m*nly composed of a control console, a water-cooled refrigeration unit, a fan pipeline, a pipeline regulating valve, a m*n engine tr*ning module, a coupling cooling water pump, a cooling tower, a temperature and pressure sensor, etc., and a temperature and pressure gauge, etc.
1. Power control part
(1) AC power supply: Provides three-phase AC power required for the control panel to work, which can be controlled by the m*n power switch. Equipped with three pointer-type AC voltmeters, which indicate the input three-phase grid voltage value respectively.
(2) Safety protection system: Equipped with voltage leakage protection, current leakage protection, overcurrent protection, overload protection, and grounding protection, which can effectively protect people and equipment.
2. Measuring instruments
(1) Pointer voltmeter: range 0~450V
(2) Vacuum pressure gauge: range -0.1~1.5Mpa
(3) Vacuum pressure gauge: range -0.1~3.5Mpa
(4) Digital display temperature meter: Using PT100 sensor, the measurement range is -50~150℃
3. Water-cooled refrigeration unit
It includes German blog FK40/470K refrigeration compressor, *r-cooled condenser, liquid sight glass, dry filter, liquid supply solenoid valve, automatic thermal expansion valve, manual expansion valve, ship-specific valve, etc.
4. Host tr*ning module:
NA830 microcomputer industrial automation cold storage controller, digital display three-digit digital tube + minus sign + status indication, with refrigeration, fan, alarm functions
5. Tr*ning device:
The tr*ning device is made of st*nless steel, with a solid structure and beautiful appearance. The tr*ning table also has four universal wheels for easy movement and fixation.
6. Heating and heating system:
Two sets of pipeline heating devices heat the pipeline *r to provide heating for the area in extremely cold conditions.
7. Ship-specific valves:
The system pipeline basically uses ship-specific stop valves to prevent manual accidental rotation.
8. Energy regulation system:
The refrigeration compressor adopts energy regulation control, which is controlled by a 3/8 solenoid valve and a 3P energy regulation valve.
9. Cooling water system:
It is composed of 550W shaft-type cooling water pump, 3T cooling tower, 120W cooling fan, temperature and pressure instruments, etc.
10. High and low pressure controllers:
high pressure 1.8-3.5MP, low pressure 00.1-0.6MP.
11. Duct fan:
single fan 220V, 300MM, wind adjustment: manual adjustment
12. Water-cooled condenser:
3P shell-type water-cooled condenser. Inlet and outlet: DN25
13. Gas-liquid separator: 1/2
14. Oil-liquid separator: 1/2
15. Compressor:
blog compressor, 2-3P/motor: 380V
16. Temperature instrument:
all instruments are displayed on site, pointer
17. Oil pressure difference controller: MP54
18. Centralized *r supply duct:
The entire *r conditioner consists of an evaporator, a blower, a control circuit, a m*n *r duct, a branch *r duct, an instrument, a m*n *r valve, an *r outlet valve, and a filter. The centralized *r supply system provides the entire area with processed *r, which is uniformly delivered to each unit room by the fan through the *r valve.
VI. Basic configuration tr*ning projects:

Serial number	Part Name	Part number	unit	quantity	Remark
1	Open compressor	Blog FK40/470K	tower	1
2	Condensate receiver	WN15	tower	1
3	Air Cooler	KL400A (all copper)	tower	1	1.5
4	Cooler housing and ventilation duct	custom made	set	1
5	ventilation system	custom made	set	1
6	Fan and motor unit	0.75	tower	1
7	Oil separator	OUB4 (1-1/8”)	Only	1
8	Filter drier	ATDS-487T (7/8”)	Only	1
9	Moisture content indicator	SGI22S	Only	1	3/8
10	Vapor-Liquid Separator	AS-61411 (1-3/8”)	Only	1
11	Thermal expansion valve	TEX12-17	Only	1	3MM
12	Manual expansion valve	REG15, (2415+567)	Only	1	3/8
13	Freon solenoid valve	EVR-20	Only	1
14	AC Motor	0.75KW	tower	1
15	Base and coupling	0.7K5W	set	1
16	Bimetallic thermometer	WSS-311A	Only	2
17	Pipeline filter	Pressureless	Only	1
18	Thermal safety valve	3060/45 (0~2.4Mpa)	Only	1
19	High and low voltage controller	KP15	Only	1
twenty one	Oil pressure differential controller	MP54	Only	1
twenty two	High pressure gauge	/ Earthquake resistance (0~2.4Mpa)	Only	1
twenty three	Low pressure gauge	Shock resistance (-0.1~0~2.5Mpa)	Only	1
twenty four	Oil pressure gauge	YC-60ZT (0~6.0Mpa)	Only	1
25	Fluorine right angle valve	1/4	Only	2
26	Fluorine str*ght stop valve	Various specifications		4	3/8
27	Auxiliary pipeline valve		Only	1	Square
28	M*n pipeline valve		Only	1	Square
29	Energy conditioning device	DF-20	indivual	1
30	Temperature Controller	T40/0～40℃	indivual	1
31	High temperature, fan	1500 *r volume	indivual	1
32	Cooling water pump unit	50CLG-0.75	set	1
33	control box		indivual	4
34	dash board		indivual	1
35	Automation component board		indivual	1
36	Cooling Tower	3T	indivual	1
37	Air conditioning unit bracket		set	1
38	Fault alarm bell	YK	indivual	1
39	Heating system		set	1

VII. Tr*ning projects
Basic operation
1. Understanding and basic control principles of centralized *r conditioning and refrigeration systems.
2. Functions and usage principles of various components of centralized *r conditioning and refrigeration systems.
3. Tr*ning on starting and stopping ship *r conditioning.
4. Debugging and protection technology of ship *r conditioning and refrigeration systems.
5. Control methods of centralized *r conditioning and ship *r conditioning.
6. Common troubleshooting methods for ship refrigeration systems.
7. Electrical control principles of ship *r conditioning.
8. Tr*ning on understanding the structure and equipment of ship *r conditioning.
9. Tr*ning on testing the operating conditions and operating parameters of ship *r conditioning.
10. Composition of the refrigeration structure of ship compressors. 11.
Composition tr*ning of central *r conditioning and heating systems.
12. Air handling methods of *r supply systems.

Senior worker tr*ning
1. Air conditioning experiment of *r conditioning system engineering.
2. Refrigerant filling experiment of *r conditioning system engineering.
3. Temperature regulation tr*ning of *r conditioning.
4. Application of energy regulation equipment of compressor refrigeration system.
5. Engineering principles of *r supply system, *r supply regulation.
6. Troubleshooting of compressor high-pressure exhaust f*lure.
7. Troubleshooting of compressor suction f*lure.
8. Expansion valve blockage fault phenomenon.
9. High and low pressure protection fault elimination.
10. Air conditioning refrigeration tr*ning.
12. Air conditioning heating mode.
Electrical fault
1. The compressor does not start and the system does not cool.
2. Refrigeration fault in fan fault mode.

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