Refrigeration control system for refrigerated storage and freezer of cruise ship

Abstract

The invention discloses a refrigeration control system for a refrigerated storage and a freezer of a cruise ship, and belongs to the technical field of refrigeration storage management. In order to solve the problems of insufficient temperature and humidity control precision and insufficient liquid level and safety control, real-time monitoring and control of a freezing and refrigerating unit and a refrigeration house can be realized through a refrigeration device monitoring module, the refrigeration house can be ensured to operate in an optimal state, and the safety of the refrigeration house is ensured. The refrigeration house equipment control module can accurately control the operation states of a refrigeration house and a freezer to ensure the stability and consistency of the temperature in the house, and the preparation area pressurization module can prevent a coil from being frozen by providing brine circulation power and monitoring the temperature in real time, so that the safe operation of a refrigeration system is ensured; the control module can achieve accurate control over refrigerating and freezing systems in different areas, including the cruise ship bow area, the cruise ship stern area and different types of units, and due to the flexibility, the refrigerating system can be adjusted and optimized according to different requirements so as to meet the storage requirements of different goods on the cruise ship.

Description

Technical Field

[0001] The present invention relates to the technical field of cold storage management, and in particular to a refrigeration control system for a cruise ship cold storage and a freezer. Background Art

[0002] A cruise ship is a luxurious water transportation vehicle that combines travel, leisure and entertainment. Cruise ships are usually equipped with various comfortable rooms, restaurants, cafes, bars and entertainment facilities such as swimming pools, theaters and gyms. Passengers can enjoy food, watch performances, participate in activities on the cruise ship, and enjoy the sea view along the way. Cruise travel has become a popular leisure method that allows people to spend a pleasant time at sea.

[0003] Refrigerator and freezer play a vital role on cruise ships. They are responsible for storing various foods needed on cruise ships to ensure the freshness and safety of the foods. Refrigerator is mainly used to store fruits, vegetables and other foods that need to be kept fresh at low temperatures, while freezer is used to store meat, seafood and other foods that need to be frozen for a long time. The existence of these facilities enables passengers on cruise ships to enjoy a variety of delicious foods and improves the comfort of travel. Therefore, excellent control of cruise ship refrigerator and freezer is essential.

[0004] In actual operation, there are still the following problems: In the prior art, there may be certain inaccuracies in the temperature and humidity control of cold storage and freezers, resulting in a decrease in the quality of food preservation. In some refrigeration and freezing systems, the liquid level control of water storage tanks, water replenishment tanks and safety valve transfer tanks may not be accurate and timely enough, which may lead to unstable system operation or safety hazards. At the same time, traditional refrigeration control systems may be difficult to manage and maintain due to their complex structures. Summary of the invention

[0005] The object of the present invention is to provide a refrigeration control system for a cruise ship refrigerator and freezer to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a refrigeration control system for a cruise ship refrigerator and freezer, comprising: Refrigeration unit monitoring module for: The refrigeration unit and the cold storage are monitored through Ethernet connection and computer control system, wherein the refrigeration unit monitoring module is arranged in the main workstation, wherein the main workstation provides an operation interface, through which the refrigeration unit is monitored and controlled, and at the same time, key data is stored; Cold storage equipment control module, used for: Control the operating status of cold storage and freezer; Prepare zone booster modules for: Provide power for brine to circulate in the system, monitor the temperature of brine and the temperature of the preparation area in real time, and adjust the flow direction and flow of brine based on the monitoring results; The personnel trapped alarm module is used for: Provides alarm function. When the trapped alarm signal is triggered, it interacts with the cold storage equipment control module, sends the equipment stop signal, and starts the sound and light alarm at the same time; Control module for: Precisely control the refrigeration system in the bow area of ​​the cruise ship, the refrigeration and freezing system in the stern area of ​​the cruise ship, the operating status of the refrigeration unit, the operating status of the refrigeration unit, and the operating status of the Freon independent unit.

[0007] Furthermore, the refrigeration device monitoring module includes: Cold storage monitoring is used to collect real-time monitoring video inside the cold storage and send the collected monitoring video data to the main workstation for storage; Ethernet connection, used to communicate with PRCC, transmit data and send instructions; The computer control system is used to control the refrigeration device by interacting with the cold storage equipment control module, the preparation area booster module and the control module, and maintain the temperature in the cold storage by controlling the two sets of freezing units and the refrigeration unit; Air cooler control system, used to adjust the internal temperature of the cold storage by controlling the air coolers in different areas; The main workstation is used to provide a monitoring and control operation interface and store key data of the temperature and humidity of the cold storage. The main workstation includes a human-machine interface and a data logger; Room controllers are used to interface with the PRCC to control the temperature of specific rooms and areas.

[0008] Furthermore, the cold storage equipment control module includes: PRCC control cabinet, used to power and control the entire cold storage and freezer system; On-site PRCC control box, used to control and manage specific cold storage areas, the on-site PRCC control box is installed outside each cold storage; Refrigeration equipment, used to work according to control instructions to adjust the temperature and humidity in the cold storage; The temperature controller is used to monitor the environmental parameters inside the cold storage and control the operation of the cooling equipment. The temperature controller monitors the environmental parameters inside the cold storage and adjusts the operation of the refrigeration equipment according to the preset control strategy. The environmental parameters include temperature and humidity. Sensors are used to monitor the temperature and humidity parameters in the cold storage in real time and feed the parameters back to the temperature controller; Alarm function, which is used to automatically trigger the alarm function when the temperature, current and other parameters in the cold storage exceed the preset values; Remote monitoring module, used for remote monitoring and control of parameters such as internal temperature of cold storage.

[0009] Furthermore, the preparation area pressurization module comprises: Controller, used to monitor and manage the operation of the entire booster system; Circulation pump, used to provide power for the brine to continuously flow and circulate in the system; The solenoid valve is used to control the on and off of the brine circulation according to the signal of the temperature sensor. When the temperature in the preparation area is lower than the set value, the solenoid valve is closed to stop the low-temperature brine circulation; A three-way valve is used to adjust the flow direction and flow rate of brine. The three-way valve is adjusted based on the signal of the temperature sensor placed after the circulation pump; Temperature sensor, used to monitor the temperature of brine and preparation area in real time; There are two temperature sensors, one of which is arranged behind the circulation pump to monitor the supply temperature of the brine; and the other temperature sensor is used to measure the temperature of the preparation area.

[0010] Furthermore, the personnel trapped alarm module includes: A control panel, which is used to provide a main panel of the trapped alarm system for human-computer interaction and to control the trapped alarm module, and the control panel is arranged outside the cold storage; The personnel trapped alarm sub-box is used to send out a trapped alarm signal. Each of the personnel trapped alarm sub-boxes is connected to the personnel trapped alarm main box. The trapped alarm signal is sent to the alarm unit. The personnel trapped alarm sub-box is arranged inside each cold storage. An alarm button is arranged on the personnel trapped alarm sub-box. When the alarm button is pressed, the trapped alarm signal is triggered, and at the same time, it interacts with the cold storage equipment control module and sends an equipment stop signal to stop the air cooler fan in the cold room from working; An alarm unit, used to send an alarm command after receiving a trapped alarm signal; The rotary alarm is used to activate the sound and light alarm after receiving the alarm command.

[0011] Furthermore, the control module includes: Bow refrigeration system start control unit, used for: Control and manage the refrigeration system in the bow area of ​​the cruise ship, control the operation of the refrigeration system, control the freezing temperature and humidity of the bow cold storage, monitor the liquid level of the water storage tank and the water supply tank, control the operation of the brine circulation pump and the supply pump, and manage the start and stop of the refrigeration unit; The start control unit of the bow refrigeration system is composed of a control cabinet, a refrigeration unit start control cabinet, a refrigeration brine circulation pump, a refrigeration brine supply pump, a water storage tank level limit switch, a water supply tank level limit switch, and a transformer; Furthermore, the control module further includes: Aft refrigeration and freezing system start control unit, used for: Control and manage the refrigeration and freezing systems in the stern area of ​​the cruise ship, control the operation of the refrigeration system, control the freezing temperature and humidity of the stern cold storage, and control the operation of the refrigeration unit and brine circulation pump as well as the liquid level of the safety valve transfer tank; Among them, the stern refrigeration and freezing system start-up control unit is composed of a control cabinet, a refrigeration unit, a brine circulation pump, a refrigeration unit, a refrigerated brine circulation pump, a refrigerated brine circulation pump, a refrigerated brine supply pump, a water storage tank level limit switch, a safety valve transfer tank level limit switch, a water supply tank level limit switch, and a degassing device transformer.

[0012] Furthermore, the control module further includes: Refrigeration unit control unit for: Controlling the operating state of the refrigeration unit by means of a refrigeration device, wherein two refrigeration units are provided, and controlling the two refrigeration units to keep one in operation and the other in standby during operation; The refrigeration and freezing device control units are provided with two, wherein the refrigerant of the refrigeration and freezing device is carbon dioxide, the secondary refrigerant is Hycool45, the refrigeration and freezing device is composed of four semi-sealed reciprocating compressors, a gas cooler, a Hycool45 cooler, a liquid receiver and an oil separator, and the refrigeration and freezing device is provided with an electrical cabinet for controlling the refrigeration device on the frame, and the electrical cabinet is connected to the valve and the sensor.

[0013] Furthermore, the control module further includes: Refrigeration unit control unit for: Controlling the operating status of the refrigeration unit, wherein two refrigeration units are provided, and controlling the two refrigeration units to keep one in operation and the other in standby during operation; The refrigeration unit control unit is provided with two, wherein the refrigerant of the refrigeration unit is carbon dioxide, the secondary refrigerant is Dowcall200, the refrigeration unit is composed of seven semi-hermetic reciprocating compressors, two gas coolers, two Dowcall200 coolers, a liquid receiver and an oil separator, and the refrigeration unit is provided with an electrical cabinet for controlling the chiller on the frame, and the electrical cabinet is connected to the valve and the sensor.

[0014] Furthermore, the control module further includes: Freon independent refrigeration unit control unit for: Control the operating status of the Freon independent unit through an independent refrigeration device; The independent refrigeration device is arranged in an air-conditioning station on the deck of the cruise ship, wherein the refrigerant of the independent refrigeration device is R407F, the independent refrigeration device is connected with a semi-hermetic compressor and a cold water condenser, and the independent refrigeration device is provided with an electrical cabinet for controlling the independent unit on the frame, and the electrical cabinet is connected to the valve and the sensor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can fully power and control the entire cold storage and freezer system through the setting of PRCC control cabinet and on-site PRCC control box, ensuring the stability and reliability of system operation. The coordinated use of temperature controller and sensor can monitor the environmental parameters inside the cold storage in real time, and accurately adjust the operation of refrigeration equipment according to the preset control strategy, which helps to maintain the temperature and humidity in the cold storage within an appropriate range, ensuring the quality and preservation effect of food and other items. The alarm function can be automatically triggered when the temperature, current and other parameters in the cold storage exceed the preset values, and timely remind the staff to deal with it, avoiding potential safety hazards.

[0016] 2. The present invention can accurately obtain the supply temperature of brine and the temperature information of the preparation area through real-time monitoring of the temperature sensor. The controller can accurately control the working status of the circulation pump, the solenoid valve and the three-way valve based on this information, so as to achieve accurate control of the temperature of the preparation area. When the temperature of the preparation area is lower than the set value, the solenoid valve will be closed to stop the circulation of low-temperature brine, reduce unnecessary energy consumption, and improve the operating efficiency of the entire system. The controller monitors and manages the entire boosting system to ensure the stable operation of the system. At the same time, the collaborative work between the various components enables the system to respond quickly and make corresponding adjustments when facing different working environments and temperature changes, ensuring that the temperature of the preparation area is always maintained within an appropriate range. By accurately controlling the circulation and temperature of the brine, it can be ensured that the food and goods in the cold storage and freezer are better refrigerated and frozen, thereby extending their shelf life and preservation quality.

[0017] 3. The present invention can achieve precise adjustment of the temperature and humidity of the bow and stern cold storages through precise control of the refrigeration and freezing systems by each control unit, which helps to ensure that the storage conditions of food and other products in different areas are optimal, thereby extending their shelf life and maintaining their quality. The control module can monitor the liquid level of the water storage tank and the water replenishment tank, as well as the liquid level of the safety valve transfer tank, and control the operation of the brine circulation pump and the replenishment pump as needed. This liquid level and safety control function helps to prevent system failures caused by abnormal liquid levels or safety problems, and improves the safety and reliability of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the system module of the present invention; Figure 2 It is a schematic diagram of cold storage monitoring of the present invention; Figure 3 It is a schematic diagram of the communication process of the main workstation of the present invention; Figure 4 It is a schematic diagram of the pressurization process of the preparation area of ​​the present invention; Figure 5 A schematic diagram of a personnel trapped alarm process of the present invention; Figure 6 It is a schematic diagram of the control flow of the refrigeration unit of the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In order to solve the problem that the temperature and humidity control of cold storage and freezer in the prior art may have certain inaccuracies, resulting in the decline of food preservation quality, in some cold storage and freezing systems, the liquid level control of water storage tanks, water replenishment tanks and safety valve transfer tanks may not be accurate and timely enough, which may lead to unstable system operation or potential safety hazards. At the same time, the traditional refrigeration control system may have complex structure, resulting in difficult management and maintenance. Please refer to Figure 1-6 , the present invention provides the following technical solutions: A refrigeration control system for a cruise ship refrigerator and freezer, comprising: Refrigeration unit monitoring module for: The refrigeration unit and the cold storage are monitored through Ethernet connection and computer control system, wherein the refrigeration unit monitoring module is arranged in the main workstation, wherein the main workstation provides an operation interface, through which the refrigeration unit is monitored and controlled, and at the same time, key data is stored; Cold storage equipment control module, used for: Control the operating status of cold storage and freezer; Prepare zone booster modules for: Provide power for brine to circulate in the system, monitor the temperature of brine and the temperature of the preparation area in real time, and adjust the flow direction and flow of brine based on the monitoring results; The personnel trapped alarm module is used for: Provides alarm function. When the trapped alarm signal is triggered, it interacts with the cold storage equipment control module, sends the equipment stop signal, and starts the sound and light alarm at the same time; Control module for: Precisely control the refrigeration system in the bow area of ​​the cruise ship, the refrigeration and freezing system in the stern area of ​​the cruise ship, the operating status of the refrigeration unit, the operating status of the refrigeration unit, and the operating status of the Freon independent unit.

[0021] Specifically, the refrigeration unit monitoring module can realize real-time monitoring and control of the refrigeration unit and the cold storage, which can not only ensure that the cold storage and freezer are running in the best state, but also timely discover and deal with potential problems, thereby improving the operating efficiency of the entire refrigeration system. The cold storage equipment control module can accurately control the operating status of the cold storage and freezer, thereby ensuring the stability and consistency of the temperature in the storage.

[0022] Specifically, the preparation area boost module can prevent the coil from freezing and ensure the safe operation of the refrigeration system by providing brine circulation power and real-time temperature monitoring. At the same time, the trapped personnel alarm module can provide an alarm function in an emergency and interact with the cold storage equipment control module to stop the equipment operation in time and activate the sound and light alarm to ensure the safety of personnel.

[0023] Specifically, the control module can achieve precise control of the refrigeration and freezing systems in different areas, including the bow and stern areas of the cruise ship, as well as different types of units. This flexibility enables the refrigeration system to be adjusted and optimized according to different needs to meet the storage needs of different cargoes on the cruise ship.

[0024] Refrigeration unit monitoring module, including: Cold storage monitoring is used to collect real-time monitoring video inside the cold storage and send the collected monitoring video data to the main workstation for storage; Ethernet connection, used to communicate with PRCC, transmit data and send instructions; The computer control system is used to control the refrigeration device by interacting with the cold storage equipment control module, the preparation area booster module and the control module, and maintain the temperature in the cold storage by controlling the two sets of freezing units and the refrigeration unit; Air cooler control system, used to adjust the internal temperature of the cold storage by controlling the air coolers in different areas; The main workstation is used to provide a monitoring and control operation interface and store key data of the temperature and humidity of the cold storage. The main workstation includes a human-machine interface and a data logger; Room controllers are used to interface with the PRCC to control the temperature of specific rooms and areas.

[0025] Specifically, through the cold storage monitoring function, video data inside the cold storage can be collected in real time and transmitted to the main workstation for storage, so that the staff can grasp the actual situation in the cold storage at any time, and timely discover and deal with potential problems. The computer control system can achieve precise control of the two sets of refrigeration units and refrigeration units through interaction with various modules, thereby maintaining the temperature stability in the cold storage. The addition of the air cooler control system further enhances the flexibility and accuracy of temperature regulation.

[0026] Specifically, the main workstation provides an intuitive and easy-to-use monitoring and control interface, which is convenient for staff to operate and manage. At the same time, the main workstation can also store key data such as temperature and humidity of the cold storage, providing a basis for subsequent data analysis and optimization. The application of room controllers makes the temperature control of specific rooms and areas more accurate and flexible, meeting the special needs of different goods or spaces.

[0027] Cold storage equipment control module, including: PRCC control cabinet, used to power and control the entire cold storage and freezer system; On-site PRCC control box, used to control and manage specific cold storage areas, the on-site PRCC control box is installed outside each cold storage; Refrigeration equipment, used to work according to control instructions to adjust the temperature and humidity in the cold storage; The temperature controller is used to monitor the environmental parameters inside the cold storage and control the operation of the cooling equipment. The temperature controller monitors the environmental parameters inside the cold storage and adjusts the operation of the refrigeration equipment according to the preset control strategy. The environmental parameters include temperature and humidity. Sensors are used to monitor the temperature and humidity parameters in the cold storage in real time and feed the parameters back to the temperature controller; Alarm function, which is used to automatically trigger the alarm function when the temperature, current and other parameters in the cold storage exceed the preset values; Remote monitoring module, used for remote monitoring and control of parameters such as internal temperature of cold storage.

[0028] Specifically, through the installation of PRCC control cabinets and local PRCC control boxes, the entire cold storage and freezer system can be fully powered and controlled, ensuring the stability and reliability of system operation. The coordinated use of temperature controllers and sensors can monitor the environmental parameters inside the cold storage in real time, and accurately adjust the operation of refrigeration equipment according to the preset control strategy, which helps to maintain the temperature and humidity in the cold storage within an appropriate range, ensuring the quality and preservation of food and other items.

[0029] Specifically, the alarm function can be automatically triggered when the temperature, current and other parameters in the cold storage exceed the preset values, and the staff can be reminded to deal with it in time, avoiding potential safety hazards. The application of the remote monitoring module enables the staff to remotely monitor and control the temperature and other parameters inside the cold storage anytime and anywhere, improving work efficiency and convenience. At the same time, this also provides convenience for troubleshooting and remote maintenance.

[0030] Prepare the zone boost module, including: Controller, used to monitor and manage the operation of the entire booster system; Circulation pump, used to provide power for the brine to continuously flow and circulate in the system; The solenoid valve is used to control the on and off of the brine circulation according to the signal of the temperature sensor. When the temperature in the preparation area is lower than the set value, the solenoid valve is closed to stop the low-temperature brine circulation; A three-way valve is used to adjust the flow direction and flow rate of brine. The three-way valve is adjusted based on the signal of the temperature sensor placed after the circulation pump; Temperature sensor, used to monitor the temperature of brine and preparation area in real time; There are two temperature sensors, one of which is arranged behind the circulation pump to monitor the supply temperature of the brine; and the other temperature sensor is used to measure the temperature of the preparation area.

[0031] Specifically, through real-time monitoring of the temperature sensor, the supply temperature of the brine and the temperature information of the preparation area can be accurately obtained. Based on this information, the controller can accurately control the working status of the circulation pump, solenoid valve and three-way valve, thereby realizing precise control of the temperature of the preparation area. When the temperature of the preparation area is lower than the set value, the solenoid valve will close and stop the circulation of the low-temperature brine. This on-demand circulation working mode can reduce unnecessary energy consumption and improve the operating efficiency of the entire system. The introduction of the three-way valve allows the flow direction and flow of the brine to be flexibly adjusted. According to the signal of the temperature sensor after the circulation pump, the three-way valve can optimize the circulation path and flow distribution of the brine to ensure the uniform distribution and efficient use of the brine in the cold storage and freezer.

[0032] Specifically, the controller monitors and manages the entire booster system to ensure stable operation of the system. At the same time, the coordinated work between the various components enables the system to respond quickly and make corresponding adjustments when facing different working environments and temperature changes, ensuring that the temperature of the preparation area is always maintained within an appropriate range. By accurately controlling the circulation and temperature of the brine, it can ensure that the food and goods in the cold storage and freezer are better refrigerated and frozen, thereby extending their shelf life and preservation quality.

[0033] Personnel trapped alarm module, including: A control panel, which is used to provide a main panel of the trapped alarm system for human-computer interaction and to control the trapped alarm module, and the control panel is arranged outside the cold storage; The personnel trapped alarm sub-box is used to send out a trapped alarm signal. Each of the personnel trapped alarm sub-boxes is connected to the personnel trapped alarm main box. The trapped alarm signal is sent to the alarm unit. The personnel trapped alarm sub-box is arranged inside each cold storage. An alarm button is arranged on the personnel trapped alarm sub-box. When the alarm button is pressed, the trapped alarm signal is triggered, and at the same time, it interacts with the cold storage equipment control module and sends an equipment stop signal to stop the air cooler fan in the cold room from working; An alarm unit, used to send an alarm command after receiving a trapped alarm signal; The rotary alarm is used to activate the sound and light alarm after receiving the alarm command.

[0034] Specifically, the setting of the personnel trapped alarm sub-box allows the trapped personnel to trigger the trapped alarm signal by pressing the alarm button when there are people trapped inside the cold storage, ensuring that the trapped situation can be discovered and responded to in time, reducing the risks faced by the trapped personnel. When the alarm button is pressed, the personnel trapped alarm sub-box not only sends a trapped alarm signal, but also interacts with the cold storage equipment control module and sends an equipment stop signal to stop the cold room's air cooler fan from working, which helps to avoid additional risks to the trapped personnel due to the continued operation of the equipment during the rescue process.

[0035] Specifically, through the application of the trapped personnel alarm module, the safety of the entire cruise ship's cold storage and freezer refrigeration control system has been significantly improved. The system can quickly respond to trapped situations and take appropriate measures to ensure the safety of trapped personnel while reducing potential losses and risks.

[0036] Control module, including: Bow refrigeration system start control unit, used for: Control and manage the refrigeration system in the bow area of ​​the cruise ship, control the operation of the refrigeration system, control the freezing temperature and humidity of the bow cold storage, monitor the liquid level of the water storage tank and the water supply tank, control the operation of the brine circulation pump and the supply pump, and manage the start and stop of the refrigeration unit; The start control unit of the bow refrigeration system is composed of a control cabinet, a refrigeration unit start control cabinet, a refrigeration brine circulation pump, a refrigeration brine supply pump, a water storage tank level limit switch, a water supply tank level limit switch, and a transformer; Aft refrigeration and freezing system start control unit, used for: Control and manage the refrigeration and freezing systems in the stern area of ​​the cruise ship, control the operation of the refrigeration system, control the freezing temperature and humidity of the stern cold storage, and control the operation of the refrigeration unit and brine circulation pump as well as the liquid level of the safety valve transfer tank; Among them, the stern refrigeration and freezing system start-up control unit is composed of a control cabinet, a refrigeration unit, a brine circulation pump, a refrigeration unit, a refrigerated brine circulation pump, a refrigerated brine circulation pump, a refrigerated brine supply pump, a water storage tank level limit switch, a safety valve transfer tank level limit switch, a water supply tank level limit switch, and a degassing device transformer.

[0037] Refrigeration unit control unit for: Controlling the operating state of the refrigeration unit by means of a refrigeration device, wherein two refrigeration units are provided, and controlling the two refrigeration units to keep one in operation and the other in standby during operation; The refrigeration and freezing device control units are provided with two, wherein the refrigerant of the refrigeration and freezing device is carbon dioxide, the secondary refrigerant is Hycool45, the refrigeration and freezing device is composed of four semi-sealed reciprocating compressors, a gas cooler, a Hycool45 cooler, a liquid receiver and an oil separator, and the refrigeration and freezing device is provided with an electrical cabinet for controlling the refrigeration device on the frame, and the electrical cabinet is connected to the valve and the sensor.

[0038] Refrigeration unit control unit for: Controlling the operating status of the refrigeration unit, wherein two refrigeration units are provided, and controlling the two refrigeration units to keep one in operation and the other in standby during operation; The refrigeration unit control unit is provided with two, wherein the refrigerant of the refrigeration unit is carbon dioxide, the secondary refrigerant is Dowcall200, the refrigeration unit is composed of seven semi-hermetic reciprocating compressors, two gas coolers, two Dowcall200 coolers, a liquid receiver and an oil separator, and the refrigeration unit is provided with an electrical cabinet for controlling the chiller on the frame, and the electrical cabinet is connected to the valve and the sensor.

[0039] Freon independent refrigeration unit control unit for: Control the operating status of the Freon independent unit through an independent refrigeration device; The independent refrigeration device is arranged in an air-conditioning station on the deck of the cruise ship, wherein the refrigerant of the independent refrigeration device is R407F, the independent refrigeration device is connected with a semi-hermetic compressor and a cold water condenser, and the independent refrigeration device is provided with an electrical cabinet for controlling the independent unit on the frame, and the electrical cabinet is connected to the valve and the sensor.

[0040] Specifically, the control module adopts a modular design, including a bow refrigeration system start-up control unit, a stern refrigeration and freezing system start-up control unit, a freezing refrigeration unit control unit, a refrigeration refrigeration unit control unit and a Freon independent refrigeration unit control unit, which makes the functions of each part clearer, facilitates management personnel to monitor and maintain the system, and improves the reliability and stability of the system.

[0041] Specifically, through the precise control of the refrigeration and freezing systems by each control unit, the temperature and humidity of the bow and stern cold storage can be precisely adjusted, which helps to ensure that the storage conditions of food and other products in different areas are optimal, thereby extending their shelf life and maintaining their quality. The control module can monitor the liquid level of the water storage tank and the water replenishment tank, as well as the liquid level of the safety valve transfer tank, and control the operation of the brine circulation pump and the supply pump as needed. This liquid level and safety control function helps prevent system failures caused by abnormal liquid levels or safety issues, and improves the safety and reliability of the entire system.

[0042] Specifically, both the freezing and refrigeration unit control unit and the refrigeration and refrigeration unit control unit are provided with two units, and one is kept in operation and the other is kept in standby state, ensuring that even if one unit fails, the other unit can immediately take over the work, thereby avoiding refrigeration and freezing interruptions caused by unit failure. Each refrigeration unit control unit is equipped with an electrical cabinet and connected to valves and sensors, so that the control system can obtain system status information in real time and perform precise control as needed. At the same time, the integrated design of the electrical cabinet also simplifies the system wiring and installation process and improves the overall performance of the system.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A refrigeration control system for cruise ship refrigerators and freezers, It is characterized in that include: Refrigeration unit monitoring module for: The refrigeration unit and the cold storage are monitored through Ethernet connection and computer control system, wherein the refrigeration unit monitoring module is arranged in the main workstation, wherein the main workstation provides an operation interface, through which the refrigeration unit is monitored and controlled, and at the same time, key data is stored; Cold storage equipment control module, used for: Control the operating status of cold storage and freezer; Prepare zone boost modules for: Provide power for brine to circulate in the system, monitor the temperature of brine and the temperature of the preparation area in real time, and adjust the flow direction and flow of brine based on the monitoring results; The personnel trapped alarm module is used for: Provides alarm function. When the trapped alarm signal is triggered, it interacts with the cold storage equipment control module, sends the equipment stop signal, and starts the sound and light alarm at the same time; Control module for: Precisely control the refrigeration system in the bow area of ​​the cruise ship, the refrigeration and freezing system in the stern area of ​​the cruise ship, the operating status of the refrigeration unit, the operating status of the refrigeration unit, and the operating status of the Freon independent unit.

2. A refrigeration control system for a cruise ship refrigerator and freezer as claimed in claim 1, Features: The refrigeration device monitoring module comprises: Cold storage monitoring is used to collect real-time monitoring video inside the cold storage and send the collected monitoring video data to the main workstation for storage; Ethernet connection, used to communicate with PRCC, transmit data and send instructions; The computer control system is used to control the refrigeration device by interacting with the cold storage equipment control module, the preparation area booster module and the control module, and maintain the temperature in the cold storage by controlling the two sets of freezing units and the refrigeration unit; Air cooler control system, used to adjust the internal temperature of the cold storage by controlling the air coolers in different areas; The main workstation is used to provide a monitoring and control operation interface and store key data of the temperature and humidity of the cold storage. The main workstation includes a human-machine interface and a data logger; Room controllers are used to interface with the PRCC to control the temperature of specific rooms and areas.

3. A refrigeration control system for a cruise ship refrigerator and freezer as claimed in claim 1, Features: The cold storage equipment control module comprises: PRCC control cabinet, used to power and control the entire cold storage and freezer system; On-site PRCC control box, used to control and manage specific cold storage areas, the on-site PRCC control box is installed outside each cold storage; Refrigeration equipment, used to work according to control instructions to adjust the temperature and humidity in the cold storage; The temperature controller is used to monitor the environmental parameters inside the cold storage and control the operation of the cooling equipment. The temperature controller monitors the environmental parameters inside the cold storage and adjusts the operation of the refrigeration equipment according to the preset control strategy. The environmental parameters include temperature and humidity. Sensors are used to monitor the temperature and humidity parameters in the cold storage in real time and feed the parameters back to the temperature controller; Alarm function, which is used to automatically trigger the alarm function when the temperature, current and other parameters in the cold storage exceed the preset values; Remote monitoring module, used for remote monitoring and control of parameters such as internal temperature of cold storage.

4. A refrigeration control system for a cruise ship refrigerator and freezer as claimed in claim 1, Features: The preparation area pressurization module comprises: Controller, used to monitor and manage the operation of the entire booster system; Circulation pump, used to provide power for the brine to continuously flow and circulate in the system; The solenoid valve is used to control the on and off of the brine circulation according to the signal of the temperature sensor. When the temperature in the preparation area is lower than the set value, the solenoid valve is closed to stop the low-temperature brine circulation; A three-way valve is used to adjust the flow direction and flow rate of brine. The three-way valve is adjusted based on the signal of the temperature sensor placed after the circulation pump; Temperature sensor, used to monitor the temperature of brine and preparation area in real time; There are two temperature sensors, one of which is arranged behind the circulation pump to monitor the supply temperature of the brine; and the other temperature sensor is used to measure the temperature of the preparation area.

5. A refrigeration control system for a cruise ship refrigerator and freezer as claimed in claim 1, Features: The personnel trapped alarm module comprises: A control panel, which is used to provide a main panel of the trapped alarm system for human-computer interaction and control the trapped alarm module. The control panel is arranged outside the cold storage and is connected to the central control system. The personnel trapped alarm sub-box is used to send out a trapped alarm signal. Each of the personnel trapped alarm sub-boxes is connected to the personnel trapped alarm main box. The trapped alarm signal is sent to the alarm unit. The personnel trapped alarm sub-box is arranged inside each cold storage. An alarm button is arranged on the personnel trapped alarm sub-box. When the alarm button is pressed, the trapped alarm signal is triggered, and at the same time, it interacts with the cold storage equipment control module and sends an equipment stop signal to stop the air cooler fan in the cold room from working; An alarm unit, used to send an alarm command after receiving a trapped alarm signal; The rotary alarm is used to activate the sound and light alarm after receiving the alarm command.

6. A refrigeration control system for a cruise ship refrigerator and freezer as claimed in claim 1, Features: The control module comprises: Bow refrigeration system start control unit, used for: Control and manage the refrigeration system in the bow area of ​​the cruise ship, control the operation of the refrigeration system, control the freezing temperature and humidity of the bow cold storage, monitor the liquid level of the water storage tank and the water supply tank, control the operation of the brine circulation pump and the supply pump, and manage the start and stop of the refrigeration unit; Among them, the bow refrigeration system start-up control unit is composed of a control cabinet, a refrigeration unit start-up control cabinet, a refrigerated brine circulation pump, a refrigerated brine supply pump, a water storage tank level limit switch, a water supply tank level limit switch, and a transformer.

7. A refrigeration control system for a cruise ship refrigerator and freezer as claimed in claim 6, Features: The control module further includes: Aft refrigeration and freezing system start control unit, used for: Control and manage the refrigeration and freezing systems in the stern area of ​​the cruise ship, control the operation of the refrigeration system, control the freezing temperature and humidity of the stern cold storage, and control the operation of the refrigeration unit and brine circulation pump as well as the liquid level of the safety valve transfer tank; Among them, the stern refrigeration and freezing system start-up control unit is composed of a control cabinet, a refrigeration unit, a brine circulation pump, a refrigeration unit, a refrigerated brine circulation pump, a refrigerated brine circulation pump, a refrigerated brine supply pump, a water storage tank level limit switch, a safety valve transfer tank level limit switch, a water supply tank level limit switch, and a degassing device transformer.

8. A refrigeration control system for a cruise ship refrigerator and freezer as claimed in claim 7, Features: The control module further includes: Refrigeration unit control unit for: Controlling the operating state of the refrigeration unit by means of a refrigeration device, wherein two refrigeration units are provided, and controlling the two refrigeration units to keep one in operation and the other in standby during operation; The refrigeration and freezing device control units are provided with two, wherein the refrigerant of the refrigeration and freezing device is carbon dioxide, the secondary refrigerant is Hycool45, the refrigeration and freezing device is composed of four semi-sealed reciprocating compressors, a gas cooler, a Hycool45 cooler, a liquid receiver and an oil separator, and the refrigeration and freezing device is provided with an electrical cabinet for controlling the refrigeration device on the frame, and the electrical cabinet is connected to the valve and the sensor.

9. A refrigeration control system for a cruise ship refrigerator and freezer as claimed in claim 8, Features: The control module further includes: Refrigeration unit control unit for: Controlling the operating status of the refrigeration unit, wherein two refrigeration units are provided, and controlling the two refrigeration units to keep one in operation and the other in standby during operation; The refrigeration unit control unit is provided with two, wherein the refrigerant of the refrigeration unit is carbon dioxide, the secondary refrigerant is Dowcall200, the refrigeration unit is composed of seven semi-hermetic reciprocating compressors, two gas coolers, two Dowcall200 coolers, a liquid receiver and an oil separator, and the refrigeration unit is provided with an electrical cabinet for controlling the chiller on the frame, and the electrical cabinet is connected to the valve and the sensor.

10. A refrigeration control system for a cruise ship refrigerator and freezer as claimed in claim 9, Features: The control module further includes: Freon independent refrigeration unit control unit for: Control the operating status of the Freon independent unit through an independent refrigeration device; The independent refrigeration device is arranged in an air-conditioning station on the deck of the cruise ship, wherein the refrigerant of the independent refrigeration device is R407F, the independent refrigeration device is connected with a semi-hermetic compressor and a cold water condenser, and the independent refrigeration device is provided with an electrical cabinet for controlling the independent unit on the frame, and the electrical cabinet is connected to the valve and the sensor.

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