Ship air conditioning system and control method thereof, medium and program product

Abstract

The invention provides a ship air conditioning system and a control method thereof, a medium and a program product. The control method of the ship air conditioning system comprises the steps that target environment parameters and actual environment parameters corresponding to an electrical equipment room are obtained; based on the target environment parameters and the actual environment parameters, operation parameters of the ship air conditioning system are adjusted, so that the actual environment parameters conform to the target environment parameters; the operation parameters comprise at least one of the current air inlet amount corresponding to the electrical equipment room, the current cooling capacity of the water chilling unit corresponding to the electrical equipment room and the current air supply temperature difference corresponding to the central air conditioner. Combined control over the central air conditioner and the water chilling unit is achieved, the operation safety of the electrical equipment is guaranteed while the target environment parameter requirement of the electrical equipment room is guaranteed, and the operation cost of the air conditioner system is reduced.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to a marine air conditioning system and its control method, medium and program products. Background Technology

[0002] Existing ships, especially large ships, are usually equipped with air conditioning systems consisting of central air conditioning and independent air conditioning units. The central air conditioning usually controls the main service areas, while the electrical equipment rooms are equipped with independent air conditioning units (such as independent chiller units) to meet the environmental parameter control requirements of different electrical equipment rooms for temperature, humidity or fresh air volume.

[0003] Because the control logic for joint control of central air conditioning and independent chiller units is complex, currently, central air conditioning and independent chiller units (hereinafter referred to as chiller units) are usually operated and controlled independently to meet the environmental parameter requirements between electrical equipment, and joint control of the central air conditioning system and independent units is not performed.

[0004] However, when ships are at sea, they will operate in different climates and sea areas. The electrical equipment rooms will have different air environment control requirements depending on the electrical operating conditions. In cold regions, the central air conditioning will deliver hot air, and the electrical equipment will also need to consider cooling. At the same time, different electrical equipment rooms may also have different environmental parameter control requirements such as temperature, humidity or fresh air volume. Therefore, there will be great operating cost issues and safety risks.

[0005] Therefore, a new method for controlling the operation of ship air conditioning systems is urgently needed to solve the above problems. Summary of the Invention

[0006] The technical problem to be solved by this disclosure is to overcome the shortcomings of existing ship air conditioning systems that do not jointly control the central air conditioning and chiller units, and have high operating costs. The disclosure provides a ship air conditioning system and its control method, medium and program products.

[0007] This disclosure solves the above-mentioned technical problems through the following technical solution:

[0008] A first aspect provides a control method for a ship's air conditioning system, the ship including multiple electrical equipment rooms, the ship's air conditioning system including a central air conditioning system and chiller units installed in each of the electrical equipment rooms; the control method includes:

[0009] Obtain the target environmental parameters and actual environmental parameters corresponding to the electrical equipment room;

[0010] The environmental parameters include temperature and / or humidity;

[0011] The operating parameters of the ship's air conditioning system are adjusted based on the target environmental parameters and the actual environmental parameters so that the actual environmental parameters conform to the target environmental parameters.

[0012] The operating parameters include at least one of the following: the current air intake volume corresponding to the electrical equipment room, the current cooling capacity of the chiller unit corresponding to the electrical equipment room, and the current supply air temperature difference corresponding to the central air conditioning system.

[0013] Optionally, the current air intake volume is greater than or equal to a preset fresh air volume value, and less than a preset maximum air volume value;

[0014] The preset fresh air volume value is the air intake threshold corresponding to the minimum air exchange rate between the electrical devices.

[0015] Optionally, the step of adjusting the operating parameters of the ship's air conditioning system based on the target environmental parameters and the actual environmental parameters to make the actual environmental parameters conform to the target environmental parameters includes:

[0016] The opening degree of the solenoid valve of the chiller unit's chilled water is determined based on the target environmental parameters, the actual environmental parameters, and the current air intake volume, so as to adjust the current cooling capacity and make the actual environmental parameters conform to the target environmental parameters.

[0017] Optionally, the step of adjusting the operating parameters of the ship's air conditioning system based on the target environmental parameters and the actual environmental parameters to make the actual environmental parameters conform to the target environmental parameters includes:

[0018] Obtain the current rotational speed of the blower in the central air conditioning system;

[0019] The target rotational speed of the blower is determined based on the current supply air temperature difference, the target environmental parameters, the actual environmental parameters, and the current cooling capacity.

[0020] The current rotation speed is adjusted to the target rotation speed to adjust the current air intake volume so that the actual environmental parameters match the target environmental parameters.

[0021] Optionally, the step of adjusting the operating parameters of the ship's air conditioning system based on the target environmental parameters and the actual environmental parameters to make the actual environmental parameters conform to the target environmental parameters includes:

[0022] Obtain the current opening degree of the air damper in the central air conditioning system;

[0023] The target opening degree of the damper is determined based on the current air intake volume, the target environmental parameters, the actual environmental parameters, and the current cooling capacity.

[0024] The current opening degree is adjusted to the target opening degree to adjust the current supply air temperature difference so that the actual environmental parameters meet the target environmental parameters.

[0025] Optionally, the target environmental parameter further includes a target pressure, and the actual environmental parameter further includes actual pressure; the control method further includes:

[0026] Obtain the actual pressure, the target pressure, the current return air volume, and the current exhaust air volume corresponding to the electrical equipment room;

[0027] The actual pressure is adjusted based on the current intake air volume, the current return air volume, and the current exhaust air volume to make the actual pressure match the target pressure.

[0028] In a second aspect, a marine air conditioning system is provided, wherein the ship includes multiple electrical equipment rooms, and the marine air conditioning system includes a central air conditioning system and chiller units installed in each of the electrical equipment rooms;

[0029] The ship air conditioning system also includes a system controller, which uses the control method of the ship air conditioning system described above to control the air conditioning.

[0030] Optionally, the central air conditioning system includes an intake fan and a frequency converter, the frequency converter being used to adjust the current speed of the intake fan;

[0031] And / or, the central air conditioning system includes an air damper;

[0032] And / or, the electrical equipment room includes a temperature sensor and / or a humidity sensor;

[0033] And / or, the electrical equipment room includes a pressure sensor.

[0034] Thirdly, a computer-readable storage medium is provided, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the control method of the ship air conditioning system described above.

[0035] Fourthly, a computer program product is provided, comprising a computer program that, when executed by a processor, implements the control method for the ship air conditioning system described above.

[0036] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this disclosure.

[0037] The positive and progressive effects of this disclosure are as follows:

[0038] This disclosure discloses a marine air conditioning system and its control method, medium, and program product. The ship includes multiple electrical equipment rooms, and the marine air conditioning system includes a central air conditioning system and chiller units installed in each electrical equipment room. By acquiring the target environmental parameters and actual environmental parameters corresponding to the electrical equipment rooms, the operating parameters of the marine air conditioning system are adjusted based on the target environmental parameters and actual environmental parameters to make the actual environmental parameters conform to the target environmental parameters. This achieves joint control of the central air conditioning system and chiller units, ensuring the target environmental parameter requirements of the electrical equipment rooms while guaranteeing the operational safety of the electrical equipment and reducing the operating cost of the air conditioning system. Attached Figure Description

[0039] Figure 1 This is a first flowchart illustrating the control method of the ship air conditioning system provided in Embodiment 1 of this disclosure.

[0040] Figure 2 This is a second flowchart illustrating the control method of the ship air conditioning system provided in Embodiment 1 of this disclosure.

[0041] Figure 3 This is a third flowchart illustrating the control method for a ship air conditioning system provided in Embodiment 1 of this disclosure;

[0042] Figure 4 This is a fourth flowchart illustrating the control method for a ship air conditioning system provided in Embodiment 1 of this disclosure;

[0043] Figure 5 This is a fifth flowchart illustrating the control method for a ship air conditioning system provided in Embodiment 1 of this disclosure;

[0044] Figure 6 This is a schematic diagram of the structure of the ship air conditioning system provided in Embodiment 2 of this disclosure. Detailed Implementation

[0045] The present disclosure is further illustrated below by way of embodiments, but the present disclosure is not limited to the scope of the embodiments described herein.

[0046] The prefixes such as "first" and "second" used in this disclosure are merely for distinguishing different descriptive objects and do not limit the position, order, priority, quantity, or content of the described objects. The use of ordinal numbers and other prefixes used to distinguish descriptive objects in this disclosure does not constitute a limitation on the described objects. The description of the described objects is given in the claims or the context of the embodiments, and should not be construed as an unnecessary limitation. Furthermore, in the description of this embodiment, unless otherwise stated, "multiple" means two or more.

[0047] Example 1

[0048] This embodiment provides a control method for a ship's air conditioning system. The ship includes multiple electrical equipment rooms, and the ship's air conditioning system includes a central air conditioning system and chiller units installed in each of the electrical equipment rooms. Figure 1 As shown, the control method includes:

[0049] S1. Obtain the target environmental parameters and actual environmental parameters corresponding to the electrical equipment room.

[0050] Environmental parameters include temperature and / or humidity.

[0051] S2. Adjust the operating parameters of the ship's air conditioning system based on the target environmental parameters and the actual environmental parameters so that the actual environmental parameters meet the target environmental parameters.

[0052] The operating parameters include at least one of the following: the current air intake volume of the electrical equipment room, the current cooling capacity of the chiller unit corresponding to the electrical equipment room, and the current supply air temperature difference of the central air conditioning system.

[0053] Each electrical equipment room has corresponding target environmental parameters. The actual environmental parameters of the electrical equipment room can be obtained in real time through temperature and / or humidity sensors. By adjusting the operating parameters of the ship's air conditioning system, the actual environmental parameters of the electrical equipment room can be made to meet the target environmental parameters.

[0054] Since the operating parameters include at least one of the following: the current air intake volume corresponding to the electrical equipment room, the current cooling capacity of the chiller unit corresponding to the electrical equipment room, and the current supply air temperature difference corresponding to the central air conditioning, the central air conditioning is responsible for providing a certain air intake volume and supply air temperature difference to the electrical equipment, and the chiller unit is responsible for providing a certain cooling capacity to the electrical equipment room. Therefore, the process of adjusting the operating parameters involves the control of both the central air conditioning and the chiller unit. By jointly controlling the central air conditioning and the chiller unit, the actual environmental parameters of the electrical equipment room are made to meet the target environmental parameters.

[0055] The control method for the ship air conditioning system in this embodiment obtains the target environmental parameters and actual environmental parameters corresponding to the electrical equipment room, and adjusts the operating parameters of the ship air conditioning system based on the target environmental parameters and actual environmental parameters so that the actual environmental parameters meet the target environmental parameters; it realizes the joint control of the central air conditioning and chiller unit, ensuring the target environmental parameter requirements of the electrical equipment room while ensuring the operational safety of the electrical equipment and reducing the operating cost of the air conditioning system.

[0056] In one optional implementation, the current air intake volume is greater than or equal to a preset fresh air volume value, and less than a preset maximum air volume value; the preset fresh air volume value is the air intake volume threshold corresponding to the minimum number of air changes between electrical equipment.

[0057] Central air conditioning systems centrally process air (such as cooling, heating, dehumidifying, and filtering), and then deliver the processed air to various rooms that require air conditioning, including electrical equipment rooms, through intake fans and ducts. At the same time, exhaust fans expel stale air from the rooms to maintain the required temperature, humidity, and air quality in the electrical equipment rooms.

[0058] Each electrical equipment room has a minimum fresh air volume requirement, which is a preset fresh air volume value. The preset fresh air volume value is the air intake threshold corresponding to the minimum air exchange rate in the electrical equipment room, in order to ensure air quality.

[0059] In an alternative implementation, such as Figure 2 As shown, step S2 above includes:

[0060] S21. Based on the target environmental parameters, actual environmental parameters, and current air intake, determine the opening degree of the solenoid valve of the chiller unit's chilled water to adjust the current cooling capacity so that the actual environmental parameters meet the target environmental parameters.

[0061] The chiller units in the electrical equipment room include fan coil units, which are a common type of air conditioning terminal device. Chilled water flows inside the fan coil unit to generate cooling.

[0062] Central air conditioning systems centrally process outside air and then deliver the processed air at a certain air volume (i.e., the current air intake volume) to various electrical equipment rooms that require air conditioning through air intake fans and ducts. The air delivered to the electrical equipment rooms is drawn into the fan coil units, flows through the fan coil units, and exchanges heat with the chilled water in the fan coil units to generate cooling.

[0063] The opening degree of the solenoid valve of the chiller unit is determined based on the target environmental parameters, actual environmental parameters, and current air intake, so as to adjust the current cooling capacity between electrical equipment and make the actual environmental parameters conform to the target environmental parameters.

[0064] This implementation method, based on the current air intake adjustment, further adjusts the cooling capacity between electrical equipment, realizing joint control of the central air conditioning and chiller units. While ensuring the target environmental parameter requirements between electrical equipment, it also ensures the operational safety of electrical equipment and reduces the operating cost of the air conditioning system.

[0065] In an alternative implementation, such as Figure 3 As shown, step S2 above includes:

[0066] S22. Obtain the current speed of the air supply fan in the central air conditioning system.

[0067] S23. Determine the target speed of the blower based on the current supply air temperature difference, target environmental parameters, actual environmental parameters, and current cooling capacity.

[0068] S24. Adjust the current speed to the target speed to adjust the current air intake so that the actual environmental parameters meet the target environmental parameters.

[0069] Central air conditioning systems include blowers and frequency converters. By adjusting the speed of the blowers, the current air volume delivered to the electrical equipment room can be adjusted.

[0070] By obtaining the current speed of the air supply fan in the central air conditioning system, the target speed of the air supply fan is determined based on the current air supply temperature difference, target environmental parameters, actual environmental parameters, and current cooling capacity. The current speed is then adjusted to the target speed by the frequency converter to regulate the current air intake volume so that the actual environmental parameters match the target environmental parameters.

[0071] This implementation method, based on the current cooling capacity adjustment, further adjusts the current air intake between electrical equipment, realizing joint control of the central air conditioning and chiller units. While ensuring the target environmental parameter requirements between electrical equipment, it also ensures the operational safety of the electrical equipment and reduces the operating cost of the air conditioning system.

[0072] In an alternative implementation, such as Figure 4 As shown, step S2 above includes:

[0073] S25. Obtain the current opening degree of the air damper in the central air conditioning system.

[0074] S26. Determine the target opening degree of the damper based on the current air intake, target environmental parameters, actual environmental parameters, and current cooling capacity.

[0075] S27. Adjust the current opening to the target opening to adjust the current supply air temperature difference so that the actual environmental parameters meet the target environmental parameters.

[0076] Central air conditioning systems include dampers, which can be used to regulate the temperature difference of the supplied air by adjusting their opening.

[0077] The target opening of the damper is determined by the current air intake volume, target environmental parameters, actual environmental parameters, and current cooling capacity. The current opening of the damper is then adjusted to the target opening to regulate the current supply air temperature difference so that the actual environmental parameters match the target environmental parameters.

[0078] This implementation method, based on the current cooling capacity adjustment, further adjusts the current supply air temperature difference of the air delivered to the electrical equipment room, realizing joint control of the central air conditioning and chiller unit. While ensuring the target environmental parameter requirements of the electrical equipment room, it also ensures the operational safety of the electrical equipment and reduces the operating cost of the air conditioning system.

[0079] In an optional implementation, the target environmental parameter includes the target pressure, and the actual environmental parameter includes the actual pressure; such as Figure 5 As shown, the control method for ship air conditioning systems also includes:

[0080] S3. Obtain the actual pressure, target pressure, current return air volume, and current exhaust air volume corresponding to the electrical equipment room.

[0081] S4. Adjust the actual pressure based on the current intake air volume, current return air volume, and current exhaust air volume to make the actual pressure meet the target pressure.

[0082] The target pressure can be positive pressure, negative pressure, or pressure balance.

[0083] Each electrical equipment room has a corresponding target pressure. For example, some equipment rooms need to maintain positive pressure, some need to maintain negative pressure, and some need to maintain pressure balance. The actual pressure is adjusted based on the current air intake, return air, and exhaust air volume to ensure that the actual pressure meets the target pressure and guarantees the pressure requirements of the electrical equipment rooms.

[0084] Example 2

[0085] This embodiment provides a ship air conditioning system, such as Figure 6 As shown, the ship includes multiple electrical equipment rooms, and the ship's air conditioning system includes a central air conditioning unit 1 and chiller units installed in each electrical equipment room 2; the ship's air conditioning system also includes a system controller 3, which uses the control method of the ship's air conditioning system in Embodiment 1 to control the air conditioning.

[0086] In an alternative implementation, such as Figure 6 As shown, the central air conditioning 1 includes an intake fan 11 and a frequency converter 12, which is used to adjust the current speed of the intake fan 11.

[0087] The current air volume delivered to the electrical equipment room can be adjusted by regulating the speed of the blower.

[0088] In an alternative implementation, such as Figure 6 As shown, the central air conditioning system includes a damper 13.

[0089] The temperature difference of the supply air can be adjusted by regulating the opening of the damper.

[0090] In an alternative implementation, such as Figure 6 As shown, the electrical equipment room includes a temperature sensor 21 and / or a humidity sensor 22.

[0091] Environmental parameters between electrical equipment include temperature and / or humidity parameters. Real-time environmental parameters between electrical equipment are collected by temperature and / or humidity sensors, laying the foundation for the regulation of environmental parameters.

[0092] In an alternative implementation, such as Figure 6 As shown, the chiller unit in the electrical equipment room includes fan coil unit 23.

[0093] The chiller units in the electrical equipment room include fan coil units, which contain chilled water to generate cooling.

[0094] In an alternative implementation, such as Figure 6 As shown, electrical equipment room 2 includes a pressure sensor.

[0095] The actual pressure between electrical equipment is collected by pressure sensors, and the actual pressure is adjusted to meet the target pressure, thus ensuring the pressure requirements of the electrical equipment are met.

[0096] Specifically, the ship's air conditioning system also includes other components, such as exhaust fans, to ensure the normal operation of the air conditioning system.

[0097] The system controller of the ship air conditioning system in this embodiment is used to implement the control method of the ship air conditioning system in embodiment 1. The specific implementation process has been described in detail in embodiment 1, and will not be repeated here.

[0098] The ship air conditioning system of this embodiment includes a central air conditioner, chillers installed in various electrical equipment rooms, and a system controller. By acquiring the target environmental parameters and actual environmental parameters corresponding to the electrical equipment rooms, the operating parameters of the ship air conditioning system are adjusted based on the target environmental parameters and actual environmental parameters to make the actual environmental parameters conform to the target environmental parameters. This achieves joint control of the central air conditioner and chillers, ensuring the target environmental parameter requirements of the electrical equipment rooms while guaranteeing the operational safety of the electrical equipment and reducing the operating cost of the air conditioning system.

[0099] Example 3

[0100] This disclosure also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the control method for the ship air conditioning system provided in any of the above embodiments.

[0101] The readable storage medium may be more specifically adopted, including but not limited to: portable disk, hard disk, random access memory, read-only memory, erasable programmable read-only memory, optical storage device, magnetic storage device, or any suitable combination thereof.

[0102] Example 4

[0103] This disclosure also provides a computer program product, including a computer program that, when executed by a processor, implements the control method for the ship air conditioning system provided in any of the above embodiments.

[0104] The program code for executing the computer program product disclosed herein can be written in any combination of one or more programming languages. The program code can be executed entirely on a user device, partially on a user device, as a stand-alone software package, partially on a user device and partially on a remote device, or entirely on a remote device.

[0105] While specific embodiments of this disclosure have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this disclosure is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this disclosure, but all such changes and modifications fall within the scope of protection of this disclosure.

Claims

1. A control method for a ship's air conditioning system, characterized in that, The ship includes multiple electrical equipment rooms, and the ship's air conditioning system includes a central air conditioning system and chiller units installed in each of the electrical equipment rooms; the control method includes: Obtain the target environmental parameters and actual environmental parameters corresponding to the electrical equipment room; The environmental parameters include temperature and / or humidity; The operating parameters of the ship's air conditioning system are adjusted based on the target environmental parameters and the actual environmental parameters so that the actual environmental parameters conform to the target environmental parameters. The operating parameters include at least one of the following: the current air intake volume corresponding to the electrical equipment room, the current cooling capacity of the chiller unit corresponding to the electrical equipment room, and the current supply air temperature difference corresponding to the central air conditioning system.

2. The control method according to claim 1, characterized in that, The current air intake volume is greater than or equal to the preset fresh air volume value, and less than the preset maximum air volume value; The preset fresh air volume value is the air intake threshold corresponding to the minimum air exchange rate between the electrical devices.

3. The control method according to claim 1, characterized in that, The step of adjusting the operating parameters of the ship's air conditioning system based on the target environmental parameters and the actual environmental parameters to make the actual environmental parameters conform to the target environmental parameters includes: The opening degree of the solenoid valve of the chiller unit's chilled water is determined based on the target environmental parameters, the actual environmental parameters, and the current air intake volume, so as to adjust the current cooling capacity and make the actual environmental parameters conform to the target environmental parameters.

4. The control method according to claim 1, characterized in that, The step of adjusting the operating parameters of the ship's air conditioning system based on the target environmental parameters and the actual environmental parameters to make the actual environmental parameters conform to the target environmental parameters includes: Obtain the current rotational speed of the blower in the central air conditioning system; The target rotational speed of the blower is determined based on the current supply air temperature difference, the target environmental parameters, the actual environmental parameters, and the current cooling capacity. The current rotation speed is adjusted to the target rotation speed to adjust the current air intake volume so that the actual environmental parameters match the target environmental parameters.

5. The control method according to claim 1, characterized in that, The step of adjusting the operating parameters of the ship's air conditioning system based on the target environmental parameters and the actual environmental parameters to make the actual environmental parameters conform to the target environmental parameters includes: Obtain the current opening degree of the air damper in the central air conditioning system; The target opening degree of the damper is determined based on the current air intake volume, the target environmental parameters, the actual environmental parameters, and the current cooling capacity. The current opening degree is adjusted to the target opening degree to adjust the current supply air temperature difference so that the actual environmental parameters meet the target environmental parameters.

6. The control method according to any one of claims 1-5, characterized in that, The target environmental parameter further includes a target pressure, and the actual environmental parameter further includes an actual pressure; the control method further includes: Obtain the actual pressure, the target pressure, the current return air volume, and the current exhaust air volume corresponding to the electrical equipment room; The actual pressure is adjusted based on the current intake air volume, the current return air volume, and the current exhaust air volume to make the actual pressure match the target pressure.

7. A ship air conditioning system, characterized in that, The ship includes multiple electrical equipment rooms, and the ship's air conditioning system includes a central air conditioning system and chiller units installed in each of the electrical equipment rooms; The ship air conditioning system further includes a system controller, which performs air conditioning control using the control method for the ship air conditioning system as described in any one of claims 1-6.

8. The ship air conditioning system according to claim 7, characterized in that, The central air conditioning system includes an intake fan and a frequency converter, wherein the frequency converter is used to adjust the current speed of the intake fan; And / or, the central air conditioning system includes an air damper; And / or, the electrical equipment room includes a temperature sensor and / or a humidity sensor; And / or, the electrical equipment room includes a pressure sensor.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the control method of the ship air conditioning system according to any one of claims 1-6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the control method of the ship air conditioning system according to any one of claims 1-6.

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