Seawater cooling control system and method

Abstract

The present disclosure provides a seawater cooling control system and method, which is applied to the field of marine engineering technology, and includes: a cooling water well, a first temperature sensor, a water level gauge, a water pump, a water delivery pump, a monitoring buoy, a second temperature sensor, a flow meter and a controller. The first temperature sensor and the second temperature sensor monitor the temperature in the well and the coral reef area respectively, the flow meter quantifies the regional water flow velocity, the water level gauge ensures the stability of the water volume in the well, and the data is analyzed in real time by the controller to generate control instructions. The difference between the ambient temperature and the bleaching threshold, the cooling water temperature in the well and the coral reef flow velocity are used as input variables, and the flow demand of the water delivery pump is dynamically calculated through a preset rule base to achieve adaptive regulation. Through the collaborative feedback of the dual temperature sensors, the water delivery temperature is strictly controlled within the coral tolerance threshold to avoid heat stress bleaching. The combination of stratified water extraction and fuzzy control algorithm reduces energy consumption compared to traditional deep-water extraction schemes and avoids the negative impact of shading measures on zooxanthellae.

Description

Technical Field

[0001] The present disclosure relates to the field of marine engineering technology, and in particular to a seawater cooling control system and method. Background Art

[0002] Coral reefs are unique habitats within tropical marine ranching and are among the world's most biodiverse and ecologically valuable ecosystems. They contribute nearly half of shallow-sea carbonate deposition and, globally, sequester an estimated 900 million tons of carbon annually. However, effectively addressing coral heat stress and promoting habitat restoration and resource recovery in coral reef ecosystems have become fundamental and crucial to the development of tropical coral reef conservation marine ranching.

[0003] Currently, the means of controlling coral bleaching are relatively limited, mainly including the following: 1. Assisted coral evolution, which enhances coral adaptability to environmental stresses through selective breeding, assisted gene flow, epigenetic programming, etc. However, this method has a long bleaching control cycle and is only effective for some species of corals; 2. Reducing solar radiation entering the ocean through sunshades and marine microbubbles, but this method is costly and affects the photosynthesis of zooxanthellae; 3. Extracting deep cold seawater and injecting it into shallow reef coral areas, but the deep cold seawater and shallow reef areas are often far apart, making it difficult to achieve from an engineering perspective. Summary of the Invention

[0004] The present disclosure provides a seawater cooling control system and method to at least solve the above technical problems existing in the prior art.

[0005] According to a first aspect of the present disclosure, a seawater cooling control system is provided, comprising: a first temperature sensor, a water level gauge, a cooling water well, a water pump, a water delivery pump, a monitoring buoy, a second temperature sensor, a flow meter, and a controller, wherein:

[0006] The cooling water well is used to store seawater and cool the seawater;

[0007] The first temperature sensor is used to monitor the temperature distribution in the cooling water well and transmit a first temperature value to the controller;

[0008] The water level meter is used to measure the water level of the cooling water well and transmit the water level data to the controller;

[0009] The water pump is used to pump seawater from the sea and transport it to the cooling water well;

[0010] The water delivery pump is used to deliver the cooled seawater to the coral reef area;

[0011] The monitoring buoy is used to mount a second temperature sensor and a current meter;

[0012] The second temperature sensor is used to measure the temperature distribution of the sea area and transmit the second temperature value to the controller;

[0013] The flow meter is used to measure the flow velocity distribution in the coral reef area and transmit the environmental flow velocity in the coral reef area to the controller;

[0014] The controller is used to control the start and stop and flow rate of the water pump and the water delivery pump using a fuzzy control algorithm according to the first temperature value, the second temperature value, the water level data and the ambient flow rate.

[0015] In one embodiment, the cooling water well adopts a layered water intake structure and includes a thermal insulation material layer.

[0016] In one embodiment, the system further comprises a water extraction pipeline and a water supply pipeline;

[0017] The pumping pipeline is used to connect seawater with the cooling water well and transport the seawater into the cooling water well;

[0018] The water supply pipeline is used to connect the cooling water well with seawater and transport the seawater in the cooling water well to the coral reef area.

[0019] In one embodiment, the system further comprises an artificial reef;

[0020] The artificial reefs are arranged around the coral reef area to form a slow flow area to prolong the residence time of cooling water.

[0021] According to a second aspect of the present disclosure, a seawater cooling control method is provided, which is applied to any of the above-mentioned systems, comprising the following steps:

[0022] monitoring the temperature distribution in the cooling water well by a first temperature sensor and transmitting the first temperature value to the controller;

[0023] measuring the temperature distribution of the sea area by a second temperature sensor, and transmitting the second temperature value to the controller;

[0024] The flow velocity distribution in the coral reef area is measured by a flow meter, and the ambient flow velocity in the coral reef area is transmitted to the controller;

[0025] The water level data of the cooling water well is transmitted to the controller through the water level gauge to determine the water level height in the cooling water well;

[0026] When the water level is lower than the first height threshold, the controller controls the start of the water pump to pump seawater into the cooling water well;

[0027] When the water level is higher than a second height threshold, the controller controls to shut down the water pump; the second height threshold is greater than the first height threshold;

[0028] The controller uses a fuzzy control algorithm to control the output flow of the water delivery pump according to the first temperature value, the second temperature value and the ambient flow rate.

[0029] In one embodiment, the controller controls the output flow of the water delivery pump using a fuzzy control algorithm according to the first temperature value, the second temperature value and the ambient flow rate, including:

[0030] transmitting the collected second temperature value to the controller via the second temperature sensor to determine whether the second temperature value is higher than the coral bleaching threshold temperature;

[0031] When the second temperature value is higher than the coral bleaching threshold temperature, the controller continues to determine whether the first temperature value transmitted by the first temperature sensor is lower than the cooling water threshold temperature;

[0032] When the first temperature value is higher than the cooling water threshold temperature, the controller controls to shut down the water delivery pump;

[0033] When the first temperature value is lower than the cooling water threshold temperature, the controller obtains the internal flow velocity of the coral reef area collected by the flow meter and uses a fuzzy control algorithm to control the output flow of the water delivery pump.

[0034] In one embodiment, the method of controlling the output flow of the water delivery pump using a fuzzy control algorithm includes:

[0035] Dividing the difference between the second temperature value and the coral bleaching threshold temperature into multiple temperature intervals, and determining a current temperature difference level;

[0036] Divide the flow velocity in the coral reef area into multiple flow velocity intervals to obtain the current flow velocity level;

[0037] The output flow rate of the water delivery pump is determined according to the current temperature difference level, the current flow rate level and the maximum flow rate of the water delivery pump.

[0038] In one embodiment, the plurality of temperature intervals are: 0-0.5°C, 0.5-1°C, 1-1.5°C, 1.5-2°C and greater than 2°C;

[0039] The multiple flow velocity intervals are 0-0.04 m / s, 0.04-0.08 m / s, 0.08-0.12 m / s, 0.12-0.16 m / s and greater than 0.16 m / s.

[0040] In one embodiment, the maximum flow rate of the water delivery pump is 200 m³ / h.

[0041] In one embodiment, the method further comprises:

[0042] Artificial reefs are placed around the coral reef area so that water can enter the coral reef area through the artificial reefs.

[0043] The disclosed seawater cooling control system and method utilizes the natural temperature gradient created by the diurnal temperature difference in shallow seawater, combined with a well insulation design, to achieve low-cost, low-energy cooling. The system specifically comprises a cooling water well, a first temperature sensor, a water level gauge, a water pump, a water transfer pump, a monitoring buoy, a second temperature sensor, a flow meter, and a controller. The first and second temperature sensors monitor the temperature within the well and the coral reef area, respectively. The flow meter quantifies the water flow velocity in the target area, and the water level gauge ensures water stability within the well. The controller analyzes the data in real time to generate control instructions. Using the difference between the ambient temperature and the bleaching threshold, the cooling water temperature within the well, and the coral reef flow velocity as input variables, the system dynamically calculates the flow demand of the water transfer pump using a preset rule base, achieving adaptive regulation. The dual temperature sensors provide collaborative feedback to ensure that the water transfer temperature is strictly controlled within the coral tolerance threshold, preventing heat stress-induced bleaching. Furthermore, the combination of stratified water extraction and a fuzzy control algorithm reduces energy consumption compared to traditional deepwater extraction solutions and avoids the negative effects of shading on zooxanthellae.

[0044] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings, in which several embodiments of the present disclosure are shown by way of example and not limitation, wherein:

[0046] In the drawings, the same or corresponding reference numerals denote the same or corresponding parts.

[0047] Figure 1 A schematic diagram of the implementation process of the seawater cooling control system according to an embodiment of the present disclosure is shown;

[0048] Figure 2 The schematic diagram of the implementation process of the seawater cooling control method of the embodiment of the present disclosure is shown Figure 1 ;

[0049] Figure 3 The schematic diagram of the implementation process of the seawater cooling control method of the embodiment of the present disclosure is shown Figure 2 ;

[0050] Figure 4 The schematic diagram of the implementation process of the seawater cooling control method of the embodiment of the present disclosure is shown Figure 3 .

[0051] Reference numerals:

[0052] 1. Cooling water well; 2. First temperature sensor; 3. Water level gauge; 4. Suction pump; 5. Water transfer pump; 6. Monitoring buoy; 7. Second temperature sensor; 8. Flow meter; 9. Controller; 10. Suction pipeline; 11. Water supply pipeline; 12. Artificial reef. DETAILED DESCRIPTION

[0053] To make the purposes, features, and advantages of the present disclosure more apparent and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without creative work shall fall within the scope of protection of the present disclosure.

[0054] The present disclosure provides a seawater cooling control system, such as Figure 1 As shown, it includes: a cooling water well 1, a first temperature sensor 2, a water level gauge 3, a water pump 4, a water delivery pump 5, a monitoring buoy 6, a second temperature sensor 7, a flow meter 8 and a controller 9, wherein:

[0055] The cooling water well 1 is used to store and cool seawater. Specifically, it features a stratified water intake structure, a vertically stratified design (prioritizing shallow, low-temperature seawater) and insulation (such as polyurethane foam). This utilizes the diurnal temperature difference in shallow seawater (for example, surface water temperatures in tropical waters can drop to 26-27°C at night) and a circulation system of centralized nighttime water storage and targeted daytime water delivery, achieving zero external cooling energy consumption. The well is linked to the pumping and supply lines 10 and 11. When the water level gauge 3 detects insufficient water, the pump automatically activates to replenish water, forming a closed-loop cooling water supply system.

[0056] The first temperature sensor 2 is used to monitor the temperature distribution within the cooling water well and transmit the first temperature value to the controller. Specifically, the first temperature sensor 2 is a temperature monitoring device deployed inside the cooling water well 1, which monitors the vertical temperature gradient distribution within the well in real time to ensure that the cooling water temperature is below a preset threshold.

[0057] The water level gauge 3 is used to measure the water level of the cooling water well and transmit the water level data to the controller. Specifically, the water level gauge 3 is installed in the cooling water well 1 as a liquid level sensor to detect the water level in real time to prevent the pump from idling due to low water level or overflowing due to high water level.

[0058] It should be noted that the first temperature sensor 2 and the water level meter 3 in the present disclosure are integrated and placed in the cooling water well to detect the first temperature value and water level data.

[0059] The water pump 4 is used to pump seawater from the sea and transport it to the cooling water well. Specifically, the water pump 4 is an adjustable speed centrifugal pump disposed between the sea and the cooling water well 1, and is used to pump surface or middle seawater into the cooling water well 1, thereby replenishing the low-temperature water source.

[0060] The water delivery pump 5 is used to deliver the cooled seawater to the coral reef area. Specifically, the water delivery pump 5 is a speed-adjustable centrifugal pump connecting the cooling water well 1 and the coral reef area. The water delivery pump 5 adjusts the cooling water output flow rate according to the instructions of the controller 9 and delivers the cooling water to the target coral reef area.

[0061] The monitoring buoy 6 is used to carry a second temperature sensor 7 and a current meter 8. Specifically, the monitoring buoy 6 is a surface buoy device anchored in the coral reef area, and by carrying the second temperature sensor 7 and the current meter 8, it collects real-time water temperature and flow rate data in the coral reef area.

[0062] The second temperature sensor 7 is used to measure the temperature distribution of the sea area and transmit the second temperature value to the controller 9. Specifically, the second temperature sensor 7 is a temperature monitoring device deployed in the coral reef area and integrated into the monitoring buoy 6. It is used to measure the ambient seawater temperature distribution in the coral reef area in real time. It uses a high-precision thermistor or fiber optic temperature sensor. The measurement range covers the critical temperature of coral bleaching (30.5°C) and below (e.g., 25°C-35°C), with a resolution of ±0.1°C. The collected temperature data is transmitted to the controller in real time and serves as one of the core input parameters of the fuzzy control algorithm.

[0063] The current meter 8 is used to measure the flow velocity distribution within the coral reef area and transmit the ambient flow velocity within the coral reef area to the controller 9. Specifically, the current meter 8 is a flow velocity measurement device deployed in the coral reef area and integrated with the monitoring buoy 6 to monitor the water flow velocity distribution in the target coral reef area in real time. It uses an acoustic Doppler current profiler or electromagnetic sensor to analyze the water flow velocity and direction by transmitting sound waves or electromagnetic signals and receiving reflected signals.

[0064] The controller 9 is configured to control the start / stop and flow rates of the water pump and the water delivery pump using a fuzzy control algorithm based on the first and second temperature values, water level data, and ambient flow rate. Specifically, the controller 9 utilizes a microprocessor unit based on a fuzzy logic algorithm and integrates a multi-sensor data interface. This controller implements closed-loop control by dynamically calculating the start / stop logic and flow rate parameters of the water pump 4 and the water delivery pump 5. The specific implementation process will be described in detail in subsequent embodiments.

[0065] This disclosure provides a seawater cooling control system that utilizes the natural temperature gradient created by the diurnal temperature difference in shallow seawater, combined with a well insulation design, to achieve low-cost, low-energy cooling. It specifically comprises a cooling water well, a first temperature sensor, a water level gauge, a water pump, a water transfer pump, a monitoring buoy, a second temperature sensor, a flow meter, and a controller. The first and second temperature sensors monitor the temperature within the well and the coral reef area, respectively. The flow meter quantifies the water flow velocity in the target area, and the water level gauge ensures a stable water volume within the well. The controller analyzes this data in real time to generate control instructions. Using the difference between the ambient temperature and the bleaching threshold, the well cooling water temperature, and the coral reef flow velocity as input variables, the controller dynamically calculates the flow demand of the water transfer pump using a preset rule base, enabling adaptive regulation. The dual temperature sensors provide collaborative feedback to ensure that the water transfer temperature is strictly controlled within the coral tolerance threshold, preventing heat stress-induced bleaching. Furthermore, the stratified water extraction system, combined with a fuzzy control algorithm, reduces energy consumption compared to traditional deepwater extraction solutions and avoids the negative effects of shading on zooxanthellae.

[0066] In one example, the system further includes a water extraction pipeline 10 and a water supply pipeline 11;

[0067] The pumping pipeline 10 is used to connect seawater and the cooling water well and transport the seawater into the cooling water well.

[0068] Specifically, the pumping pipeline 10 connects the ocean to the cooling water well 1, transporting uncooled seawater to the cooling water well for cooling. Corrosion-resistant materials (such as high-density polyethylene or fiberglass reinforced plastic) are used to withstand long-term immersion in seawater. A filter is installed at the end of the pipeline to prevent marine organisms and impurities from entering the cooling water well 1. Working in conjunction with the pumping pump 4, the pump is dynamically started and stopped based on data from the water level gauge 3 to ensure sufficient water in the cooling water well 1.

[0069] The water supply pipeline 11 is used to connect the cooling water well 1 with seawater and transport the seawater in the cooling water well 1 to the coral reef area.

[0070] Specifically, the water supply pipeline 11 connects the cooling water well 1 to the coral reef area, delivering cooled, low-temperature seawater to the target area. At its outlet, the pipeline extends to the slow-flow zone formed by the artificial reef 12. A porous diffuser evenly distributes the cooling water to avoid localized water shock. Furthermore, the pipeline is wrapped with an insulating layer (such as polyurethane foam) to minimize water temperature rise during transportation. Flow regulation by the water pump 5 (based on a fuzzy control algorithm) dynamically matches cooling water output to the coral's heat stress requirements.

[0071] In one example, the system further includes an artificial reef 12;

[0072] The artificial reefs 12 are arranged around the coral reef area to form a slow flow area to extend the residence time of the cooling water.

[0073] Specifically, the artificial reef 12 is an artificial structure made of permeable materials (such as concrete frames, porous ceramics, or eco-friendly composite materials). It is deployed around coral reef areas and reduces water flow through physical barriers. Its porosity can reach 25%, ensuring some water flow while creating a slow-flow zone. Furthermore, its modular assembly structure adapts to different coral reef topography (such as reef flats and reef slopes). Its surface is designed to be rough or porous, promoting the attachment of coral larvae and the habitat of marine life.

[0074] The present disclosure also provides a seawater cooling control method, which is applied to the seawater cooling control system described in any of the above embodiments, such as Figure 2 As shown, the following steps are included:

[0075] Step 201: Monitor the temperature distribution in the cooling water well through a first temperature sensor, and transmit a first temperature value to a controller.

[0076] Step 202: measuring the temperature distribution of the sea area by a second temperature sensor, and transmitting the second temperature value to the controller;

[0077] Step 203: measuring the flow velocity distribution in the coral reef area by a flow meter, and transmitting the ambient flow velocity in the coral reef area to the controller;

[0078] Step 204: Transmitting the water level data of the cooling water well to the controller via the water level meter to determine the water level height in the cooling water well.

[0079] In this example, steps 201 to 204 above constitute the data acquisition process in the seawater cooling control method, providing real-time input for the core control logic:

[0080] The first temperature sensors are arranged in vertical layers along the cooling water well to detect the temperature distribution of each water layer in real time (for example, 26°C for the surface layer, 27°C for the middle layer, and 28°C for the bottom layer), ensuring that the maximum temperature in the well (the first temperature value) is ≤28°C. This threshold is set based on the coral's thermal tolerance limit to prevent the delivery of ineffective high-temperature water.

[0081] The second temperature sensor is deployed in the coral reef area to continuously monitor the ambient water temperature with an accuracy of ±0.1°C. When the second temperature value is greater than 30.5°C (the critical threshold for coral bleaching), it triggers the need for cooling, providing the starting conditions for subsequent water supply.

[0082] The current meter, also known as the acoustic Doppler current meter, is used to measure the flow velocity distribution in the coral reef area (e.g., 0.08-0.12 m / s). When the flow velocity is too high (>0.16 m / s), the water supply needs to be increased to offset the water scouring. When the flow velocity is too low (<0.04 m / s), the water supply needs to be reduced to avoid local overcooling.

[0083] The water level gauge uses a safety range of 10-12 meters. The lower limit (10 meters) ensures sufficient cooling water reserves, while the upper limit (12 meters) prevents overflow risks. The controller dynamically starts and stops the pump based on this to maintain a stable water flow.

[0084] Step 205: When the water level is lower than the first height threshold, the controller controls the water pump to start and pump seawater into the cooling water well;

[0085] Step 206: When the water level is higher than a second height threshold, the controller controls to turn off the water pump; the second height threshold is greater than the first height threshold.

[0086] In this example, the above steps 205 - 206 constitute the water level control process in the seawater cooling control method.

[0087] When the water level gauge detects the water level in the well falls below 10 meters (the minimum safe level), the controller immediately activates the pump to draw seawater from the ocean to replenish the cooling water well. Using a pressure or ultrasonic water level sensor with a measurement error of ≤±0.1 meter, the pump operates at maximum power (e.g., 200 m³ / h) until the water level returns to 10.5 meters (the buffer threshold). This prevents frequent starts and stops, which could lead to idling of the water pump or interruption of the cooling water supply due to insufficient water in the well, ensuring continuous system operation.

[0088] When the water level gauge detects the water level in the well exceeds 12 meters (the maximum safe level), the controller immediately shuts off the pump and stops water replenishment. An overflow port (diameter ≥ 0.5 meters) is installed at the top of the cooling water well to automatically release water to the sea when the water level exceeds 12.5 meters. After the pump is shut off, if the water level drops below 12 meters due to natural evaporation or water consumption, the controller resumes water replenishment, thus preventing damage to the well structure caused by excessive water pressure and reducing energy waste.

[0089] Step 207: The controller uses a fuzzy control algorithm to control the output flow of the water delivery pump according to the first temperature value, the second temperature value and the ambient flow rate.

[0090] In this example, the four types of data collected in steps 201-204 are integrated by the controller to form a multi-dimensional decision-making model for "temperature, flow rate, and water level." For example, only when the second temperature value is greater than 30.5°C and the first temperature value is ≤28°C does the controller activate the fuzzy algorithm to adjust the water flow rate based on the ambient flow rate. Furthermore, when the water level is abnormal, the controller prioritizes water replenishment or pump shutdown, ensuring a balance between system safety and efficiency.

[0091] In one example, the controller uses a fuzzy control algorithm to control the output flow of the water delivery pump according to the first temperature value, the second temperature value and the ambient flow rate, such as Figure 3 As shown, including:

[0092] Step 301: The second temperature value collected is transmitted to the controller via the second temperature sensor to determine whether the second temperature value is higher than the coral bleaching threshold temperature.

[0093] In this example, when the second temperature sensor monitors the second temperature value of the coral reef area in real time ,when When the coral bleaching threshold temperature is reached, the cooling process is initiated. By only initiating water transfers when corals are at risk of heat stress, unnecessary intervention in the marine environment is reduced.

[0094] Step 302: When the second temperature value is higher than the coral bleaching threshold temperature, the controller continues to determine whether the first temperature value transmitted by the first temperature sensor is lower than the cooling water threshold temperature.

[0095] In this example, the controller further checks the first temperature value of the cooling water well Is it ≤28℃ (cooling water threshold temperature). >28℃, indicating that the water temperature stored in the cooling water well does not meet the standard, execute step 303 to turn off the water pump; if ≤28℃, confirm that the cooling water is effective, and execute step 304 to start the fuzzy control algorithm. and ) Avoid delivering invalid high-temperature water and ensure cooling effect.

[0096] Step 303: When the first temperature value is higher than the cooling water threshold temperature, the controller controls to turn off the water delivery pump.

[0097] In this example, when the first temperature value exceeds the cooling water threshold temperature, the controller immediately shuts down the water pump to stop cooling water delivery. By interlocking with the water level gauge, if the water level falls below 10 meters at this time, pumping water is prioritized.

[0098] Step 304: When the first temperature value is lower than the cooling water threshold temperature, the controller obtains the flow velocity inside the coral reef area collected by the flow meter and uses a fuzzy control algorithm to control the output flow of the water delivery pump.

[0099] In this example, when the first temperature value is lower than the cooling water threshold temperature, the controller obtains the flow velocity inside the coral reef area collected by the flow meter and uses the fuzzy control algorithm to control the output flow of the water delivery pump, such as Figure 4 As shown, including:

[0100] Step 3041: Divide the difference between the second temperature value and the coral bleaching threshold temperature into multiple temperature intervals, and determine the current temperature difference level.

[0101] For example, the temperature difference level ( ): The difference is divided into 5 levels (0-0.5℃, 0.5-1℃, 1-1.5℃, 1.5-2℃, >2℃), and the current temperature difference level is obtained.

[0102] Step 3042: Divide the flow velocity in the coral reef area into multiple flow velocity intervals to obtain the current flow velocity level.

[0103] For example, the flow rate level ( ): Flow velocity in coral reef area The flow rate is divided into 5 levels (0-0.04m / s, 0.04-0.08m / s, 0.08-0.12m / s, 0.12-0.16m / s, and >0.16m / s), and the current flow rate level is obtained.

[0104] Step 3043: Determine the output flow rate of the water delivery pump according to the current temperature difference level, the current flow rate level and the maximum flow rate of the water delivery pump.

[0105] Specifically, the output flow of the water delivery pump is calculated using the following algorithm:

[0106] Output traffic ,in:

[0107] is the maximum flow rate of the water pump (200m³ / h), (interval classification number);

[0108] For example: When (temperature difference 1-1.5℃), (flow rate 0.04-0.08m / s), .

[0109] Finally, the controller adjusts the speed of the water delivery pump through the frequency converter or valve opening to match the target flow rate.

[0110] In one example, the method further includes: placing artificial reefs around the coral reef area so that water can enter the coral reef area through the artificial reefs.

[0111] In this example, artificial reefs are deployed at specific intervals (e.g., 5-10 meters) around the perimeter of the coral reef area, forming a ring or grid-like barrier. This allows some water to enter the coral reef area through openings while reducing the overall flow rate. The opening ratio is 25%, ensuring a controlled slow flow zone (reducing the flow rate from 0.16 m / s to below 0.08 m / s). The artificial reefs utilize modular concrete frames or eco-friendly composite materials with a roughened surface to promote the attachment of coral larvae. The openings disperse the energy of the water flow, allowing some water to enter the coral reef area through the holes, while the remaining part bypasses the reef, forming a low-speed vortex zone and extending the residence time of the cooling water.

[0112] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this disclosure can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved. This is not limited herein.

[0113] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the present disclosure, "plurality" means two or more, unless otherwise specifically defined.

[0114] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A seawater cooling control system, characterized in that: include: A first temperature sensor, a water level gauge, a cooling water well, a water pump, a water delivery pump, a monitoring buoy, a second temperature sensor, a flow meter, and a controller, wherein: The cooling water well is used to store seawater and cool the seawater; The first temperature sensor is used to monitor the temperature distribution in the cooling water well and transmit a first temperature value to the controller; The water level meter is used to measure the water level of the cooling water well and transmit the water level data to the controller; The water pump is used to pump seawater from the sea and transport it to the cooling water well; The water delivery pump is used to deliver the cooled seawater to the coral reef area; The monitoring buoy is used to mount a second temperature sensor and a current meter; The second temperature sensor is used to measure the temperature distribution of the sea area and transmit the second temperature value to the controller; The flow meter is used to measure the flow velocity distribution in the coral reef area and transmit the environmental flow velocity in the coral reef area to the controller; The controller is used to control the start and stop and flow rate of the water pump and the water delivery pump using a fuzzy control algorithm according to the first temperature value, the second temperature value, the water level data and the ambient flow rate, including: The second temperature sensor transmits the collected second temperature value to the controller to determine whether the second temperature value is higher than the coral bleaching threshold temperature; When the second temperature value is higher than the coral bleaching threshold temperature, the controller continues to determine whether the first temperature value transmitted by the first temperature sensor is lower than the cooling water threshold temperature; When the first temperature value is higher than the cooling water threshold temperature, the controller controls to shut down the water delivery pump; When the first temperature value is lower than the cooling water threshold temperature, the controller obtains the flow velocity inside the coral reef area collected by the flow meter and uses a fuzzy control algorithm to control the output flow of the water delivery pump; The method of controlling the output flow of the water delivery pump using a fuzzy control algorithm includes: Dividing the difference between the second temperature value and the coral bleaching threshold temperature into multiple temperature intervals, and determining a current temperature difference level; Divide the flow velocity in the coral reef area into multiple flow velocity intervals to obtain the current flow velocity level; The output flow rate of the water delivery pump is determined according to the current temperature difference level, the current flow rate level and the maximum flow rate of the water delivery pump.

2. The seawater cooling control system according to claim 1, characterized in that: The cooling water well adopts a layered water intake structure and includes a thermal insulation material layer.

3. The seawater cooling control system according to claim 1, characterized in that: The system also includes a water pumping pipeline and a water supply pipeline; The pumping pipeline is used to connect seawater with the cooling water well and transport the seawater into the cooling water well; The water supply pipeline is used to connect the cooling water well with seawater and transport the seawater in the cooling water well to the coral reef area.

4. The seawater cooling control system according to claim 1, characterized in that: The system also includes artificial reefs; The artificial reefs are arranged around the coral reef area to form a slow flow area to prolong the residence time of cooling water.

5. A seawater cooling control method, applied to the system according to any one of claims 1 to 4, characterized in that: The following steps are involved: monitoring the temperature distribution in the cooling water well by a first temperature sensor and transmitting the first temperature value to the controller; measuring the temperature distribution of the sea area by a second temperature sensor, and transmitting the second temperature value to the controller; The flow velocity distribution in the coral reef area is measured by a flow meter, and the ambient flow velocity in the coral reef area is transmitted to the controller; The water level data of the cooling water well is transmitted to the controller through the water level gauge to determine the water level height in the cooling water well; When the water level is lower than the first height threshold, the controller controls the start of the water pump to pump seawater into the cooling water well; When the water level is higher than a second height threshold, the controller controls to shut down the water pump; the second height threshold is greater than the first height threshold; The controller controls the output flow of the water delivery pump using a fuzzy control algorithm according to the first temperature value, the second temperature value and the ambient flow rate; The controller controls the output flow of the water delivery pump using a fuzzy control algorithm according to the first temperature value, the second temperature value and the ambient flow rate, including: transmitting the collected second temperature value to the controller via the second temperature sensor to determine whether the second temperature value is higher than the coral bleaching threshold temperature; When the second temperature value is higher than the coral bleaching threshold temperature, the controller continues to determine whether the first temperature value transmitted by the first temperature sensor is lower than the cooling water threshold temperature; When the first temperature value is higher than the cooling water threshold temperature, the controller controls to shut down the water delivery pump; When the first temperature value is lower than the cooling water threshold temperature, the controller obtains the flow velocity inside the coral reef area collected by the flow meter and uses a fuzzy control algorithm to control the output flow of the water delivery pump; The method of controlling the output flow of the water delivery pump using a fuzzy control algorithm includes: Dividing the difference between the second temperature value and the coral bleaching threshold temperature into multiple temperature intervals, and determining a current temperature difference level; Divide the flow velocity in the coral reef area into multiple flow velocity intervals to obtain the current flow velocity level; The output flow rate of the water delivery pump is determined according to the current temperature difference level, the current flow rate level and the maximum flow rate of the water delivery pump.

6. The seawater cooling control method according to claim 5, characterized in that: The multiple temperature intervals are: 0-0.5°C, 0.5-1°C, 1-1.5°C, 1.5-2°C and greater than 2°C; The multiple flow velocity intervals are 0-0.04 m / s, 0.04-0.08 m / s, 0.08-0.12 m / s, 0.12-0.16 m / s and greater than 0.16 m / s.

7. The seawater cooling control method according to claim 5, characterized in that: The maximum flow rate of the water delivery pump is 200m³ / h.

8. The seawater cooling control method according to claim 5, characterized in that: The method further comprises: Artificial reefs are placed around the coral reef area so that water can enter the coral reef area through the artificial reefs.

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