Seawater cooling control system and method

Abstract

The invention provides a seawater cooling control system and method which are applied to the technical field of ocean engineering, and the seawater cooling control system comprises a cooling water well, a first temperature sensor, a water level gauge, a water suction 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 and the water flow speed of the flow velocity metering area respectively, the water level gauge ensures that the water volume in the well is stable, and data are analyzed in real time through the controller to generate a control instruction. The difference value between the environment temperature and the whitening threshold value, the cooling water temperature in the well and the coral reef flow speed serve as input variables, the flow requirement of the water delivery pump is dynamically calculated through a preset rule base, and self-adaptive adjustment is achieved. Through cooperative feedback of the double temperature sensors, it is ensured that the water delivery temperature is strictly controlled within a coral tolerance threshold value, and heat stress whitening is avoided. Layered water taking is combined with a fuzzy control algorithm, energy consumption is reduced compared with a traditional deepwater extraction scheme, and negative effects of shading measures on zooxanthellae are avoided.

Description

Technical Field

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

[0002] Coral reefs are special habitats in tropical marine ranches and are one of the ecosystems with the highest biodiversity and ecological value in the world. They contribute nearly half of the shallow - sea carbonate deposits and are expected to fix 900 million tons of carbon annually on a global scale. However, how to effectively respond to coral heat stress and promote the habitat restoration and resource recovery of coral reef ecosystems has become the basis and key for the construction of conservation - type tropical coral reef marine ranches.

[0003] Currently, the means of treating coral reef bleaching are relatively limited, mainly including the following methods: 1. Coral assisted evolution, which enhances the adaptability of corals to environmental stress through methods such as selective breeding, assisted gene flow, and epigenetic programming. However, the cycle of treating bleaching by this method is relatively long and it is only effective for some species of corals; 2. Reducing solar radiation entering the ocean through sunshades and marine micro - bubbles, but this method requires high costs and affects the photosynthesis of zooxanthellae; 3. Pumping deep - cold seawater and injecting it into shallow - reef coral areas. However, there is often a large distance between deep - cold seawater and shallow - reef areas, 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 - mentioned technical problems in the prior art.

[0005] According to a first aspect of the present disclosure, there is provided a seawater cooling control system, including: 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 gauge is used to measure the water level of the cooling water well and transmit water level data to the controller; The water pump is used to pump seawater from the sea area and transport it into the cooling water well; The water delivery pump is used to transport the cooled seawater to the coral reef area; The monitoring buoy is used to mount the second temperature sensor and the flow meter; The second temperature sensor is used to measure the temperature distribution in the sea area and transmit a second temperature value to the controller; The flowmeter 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 / stop and flow rate of the water pump and the water delivery pump according to the first temperature value, the second temperature value, the water level data, and the environmental flow velocity by using a fuzzy control algorithm.

[0006] In an implementable embodiment, the cooling water well adopts a stratified water intake structure and includes a heat insulation material layer.

[0007] In an implementable embodiment, the system further includes a water suction pipeline and a water supply pipeline; The water suction pipeline is used to connect the seawater with the cooling water well and transport the seawater to the inside of the cooling water well; The water supply pipeline is used to connect the cooling water well with the seawater and transport the seawater in the cooling water well to the coral reef area.

[0008] In an implementable embodiment, the system further includes artificial fish reefs; The artificial fish reefs are arranged around the coral reef area and are used to form a slow flow area to extend the residence time of the cooling water.

[0009] According to the second aspect of the present disclosure, there is provided a seawater cooling control method, which is applied to the system described in any one of the above, and includes the following steps: Monitor the temperature distribution in the cooling water well through a first temperature sensor and transmit the first temperature value to the controller; Measure the temperature distribution of the sea area through a second temperature sensor and transmit the second temperature value to the controller; Measure the flow velocity distribution in the coral reef area through a flowmeter and transmit the environmental flow velocity in the coral reef area to the controller; Transmit the water level data of the cooling water well to the controller through a water level gauge to judge the water level height in the cooling water well; When the water level height is lower than the first height threshold, the controller controls to turn on the water pump to pump seawater into the cooling water well; When the water level height is higher than the second height threshold, the controller controls to turn off the water pump; the second height threshold is greater than the first height threshold; The controller controls the output flow rate of the water delivery pump according to the first temperature value, the second temperature value, and the environmental flow velocity by using a fuzzy control algorithm.

[0010] In an implementable embodiment, the controller controls the output flow rate of the water delivery pump according to the first temperature value, the second temperature value, and the environmental flow velocity by using a fuzzy control algorithm, including: Transmit the collected second temperature value to the controller through a second temperature sensor to judge 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 turn off the water delivery pump; When the first temperature value is lower than the cooling water threshold temperature, the controller obtains the internal flow velocity in the coral reef area collected by the flow meter and controls the output flow of the water delivery pump by using a fuzzy control algorithm.

[0011] In an implementable manner, the controlling the output flow of the water delivery pump by using a fuzzy control algorithm includes: Dividing the difference between the second temperature value and the coral bleaching threshold temperature into multiple temperature intervals to determine the current temperature difference level; Dividing the flow velocity in the coral reef area into multiple flow velocity intervals to obtain the current flow velocity level; Determining the output flow of the water delivery pump according to the current temperature difference level, the current flow velocity level and the maximum flow of the water delivery pump.

[0012] In an implementable manner, 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.

[0013] In an implementable manner, the maximum flow of the water delivery pump is 200 m³ / h.

[0014] In an implementable manner, the method further includes: Deploying artificial fish reefs around the coral reef area so that water can enter the coral reef area through the artificial fish reefs.

[0015] A seawater cooling control system and method of the present disclosure utilize the natural temperature gradient formed by the day-night temperature difference of shallow seawater and combine with the well body heat preservation design to achieve low-cost and low-energy consumption cooling. Specifically, it 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. Among them, the first temperature sensor and the second temperature sensor respectively monitor the temperature in the well and the coral reef area, the flow meter quantifies the water flow velocity in the target area, the water level gauge ensures the stability of the water volume in the well, and the data is parsed in real time by the controller to generate control instructions. Taking the difference between the environmental temperature and the bleaching threshold, the temperature of the cooling water in the well, and the flow velocity of the coral reef as input variables, the flow rate requirement of the water delivery pump is dynamically calculated through a preset rule base to achieve adaptive adjustment. Through the collaborative feedback of the dual temperature sensors, it is ensured that the water delivery temperature is strictly controlled within the coral tolerance threshold to avoid heat stress-induced bleaching. Moreover, the combination of stratified water intake and fuzzy control algorithm reduces energy consumption compared with the traditional deep water extraction scheme and avoids the negative impact of shading measures on zooxanthellae.

[0016] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it used 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

[0017] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present disclosure will become easily understood. In the drawings, several embodiments of the present disclosure are shown in an exemplary rather than restrictive manner, wherein: In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0018] Figure 1 Shows the schematic implementation flow diagram of the seawater cooling control system of the embodiment of the present disclosure; Figure 2 Shows the schematic implementation flow of the seawater cooling control method of the embodiment of the present disclosure Figure 1 ; Figure 3 Shows the schematic implementation flow of the seawater cooling control method of the embodiment of the present disclosure Figure 2 ; Figure 4 Shows the schematic implementation flow of the seawater cooling control method of the embodiment of the present disclosure Figure 3 .

[0019] REFERENCE NUMERALS: 1. Cooling water well; 2. First temperature sensor; 3. Water level gauge; 4. Water pump; 5. Water delivery pump; 6. Monitoring buoy; 7. Second temperature sensor; 8. Flow meter; 9. Controller; 10. Water suction pipeline; 11. Water supply pipeline; 12. Artificial fish reef. Detailed implementation mode

[0020] To make the objectives, features, and advantages of the present disclosure more obvious and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present disclosure.

[0021] The present disclosure provides a seawater cooling control system, as Figure 1 shown, including: 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, where: The cooling water well 1 is used to store seawater and cool the seawater. Specifically, the cooling water well 1 is a water storage device with a layered water intake structure, which is coated with a vertical layered design (preferably extracting shallow-layer low-temperature seawater) and heat-insulating materials (such as polyurethane foam). Utilizing the day-night temperature difference of shallow seawater (for example, the surface water temperature in tropical waters can drop to 26-27°C at night), through the circulation mode of centralized water storage at night and directional water delivery during the day, zero external refrigeration energy consumption is achieved. It is linked with the water extraction pipeline 10 and the water supply pipeline 11. When the water level gauge 3 detects insufficient water volume, the water pump is automatically started to replenish water, forming a closed-loop cooling water supply system.

[0022] The first temperature sensor 2 is used to monitor the temperature distribution in 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 continuously monitors the vertical temperature gradient distribution in the well to ensure that the cooling water temperature is lower than the preset threshold.

[0023] 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 a liquid level sensor installed in the cooling water well 1, which is used to continuously detect the water level height to prevent the water pump from idling due to too low water level or overflow due to too high water level.

[0024] It should be noted that the first temperature sensor 2 and the water level gauge 3 in the present disclosure are integrated and placed in the cooling water well to detect the first temperature value and the water level data.

[0025] The water pump 4 is used to extract seawater from the sea area and transport it into the cooling water well. Specifically, the water pump 4 is an adjustable-speed centrifugal pump configured between the sea area and the cooling water well 1, which is used to extract surface or middle-layer seawater into the cooling water well 1 to replenish the low-temperature water source.

[0026] The water transfer pump 5 is used to transport the cooled seawater to the coral reef area. Specifically, the water transfer pump 5 is a variable-speed centrifugal pump connecting the cooling water well 1 and the coral reef area, and adjusts the output flow rate of the cooling water according to the instructions of the controller 9, and directionally transports it to the target coral reef area.

[0027] The monitoring buoy 6 is used to mount the second temperature sensor 7 and the flow velocity meter 8. Specifically, the monitoring buoy 6 is a water surface buoy device anchored in the coral reef area. By carrying the second temperature sensor 7 and the flow velocity meter 8, it can collect the water temperature and flow velocity data in the coral reef area in real time.

[0028] 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, integrated on the monitoring buoy 6, and 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, with a measurement range covering the coral bleaching critical temperature (30.5 °C) and the following interval (such as 25 °C - 35 °C), a resolution of ±0.1 °C, and transmits the collected temperature data to the controller in real time, as one of the core input parameters of the fuzzy control algorithm.

[0029] The flow velocity meter 8 is used to measure the flow velocity distribution in the coral reef area and transmit the ambient flow velocity in the coral reef area to the controller 9. Specifically, the flow velocity meter 8 is a flow velocity measuring device deployed in the coral reef area, integrated on the monitoring buoy 6, and is used to monitor the water flow velocity distribution in the target coral reef area in real time. It uses an acoustic Doppler current profiler or an electromagnetic sensor, and analyzes the water flow velocity and direction by emitting acoustic waves or electromagnetic signals and receiving the reflected signals.

[0030] The controller 9 is used to control the start and stop and flow rate of the water extraction pump and the water transfer pump according to the first temperature value, the second temperature value, the water level data and the ambient flow velocity, using a fuzzy control algorithm. Specifically, the controller 9 is a microprocessor unit based on a fuzzy logic algorithm, integrating a multi-sensor data interface, and realizes closed-loop control by dynamically calculating the start and stop logic and flow rate parameters of the water extraction pump 4 and the water transfer pump 5. The specific implementation process will be described in detail in the subsequent embodiments.

[0031] The present disclosure provides a seawater cooling control system that utilizes the natural temperature gradient formed by the day-night temperature difference of shallow seawater and combines the well body heat preservation design to achieve low-cost and low-energy consumption cooling. Specifically, it 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. Among them, the first temperature sensor and the second temperature sensor respectively monitor the temperature in the well and the coral reef area, the flow meter quantifies the water flow velocity in the target area, the water level gauge ensures the stability of the water volume in the well, and the data is parsed in real time by the controller to generate control instructions. Taking the difference between the environmental temperature and the bleaching threshold, the temperature of the cooling water in the well, and the coral reef flow velocity as input variables, the flow rate requirement of the water delivery pump is dynamically calculated through a preset rule base to achieve adaptive adjustment. 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-induced bleaching. Moreover, the combination of stratified water intake and fuzzy control algorithm reduces energy consumption compared to the traditional deep water extraction scheme and avoids the negative impact of shading measures on zooxanthellae.

[0032] In one example, the system further includes a water extraction pipeline 10 and a water supply pipeline 11; The water extraction pipeline 10 is used to connect the seawater to the cooling water well and transport the seawater to the inside of the cooling water well.

[0033] Specifically, the water extraction pipeline 10 is a pipeline system connecting the sea area and the cooling water well 1, and is used to transport the uncooled seawater to the cooling water well for temperature reduction treatment. Corrosion-resistant materials (such as high-density polyethylene or fiberglass) can be used to adapt to the long-term immersion environment of seawater; a filter screen is configured at the end of the pipeline to prevent marine organisms or impurities from entering the cooling water well 1. By working in coordination with the water pump 4 and starting and stopping dynamically according to the data of the water level gauge 3, it ensures that the cooling water well 1 has sufficient water volume.

[0034] The water supply pipeline 11 is used to connect the cooling water well 1 to the seawater and transport the seawater in the cooling water well 1 to the coral reef area.

[0035] Specifically, the water supply pipeline 11 is a pipeline system connecting the cooling water well 1 and the coral reef area, and is used to directionally transport the cooled low-temperature seawater to the target area; the outlet end of the pipeline extends to the slow-flow area formed by the artificial reef 12, and the cooling water is evenly distributed through a porous diffuser to avoid local water flow impact. In addition, the pipeline is wrapped with a heat insulation layer (such as polyurethane foam) to reduce the water temperature rise during transportation. Through the flow rate adjustment of the water delivery pump 5 (based on the fuzzy control algorithm), the dynamic matching of the cooling water output and the coral heat stress demand is achieved.

[0036] In one example, the system further includes an artificial reef 12; The artificial reef 12 is arranged around the coral reef area and is used to form a slow-flow area to extend the residence time of the cooling water.

[0037] Specifically, the artificial fish reef 12 is an artificial structure made of permeable materials (such as concrete frames, porous ceramics, or eco-friendly composite materials), arranged around the coral reef area, and reducing the water flow velocity through physical barrier effects. Its porosity can reach 25%, ensuring that part of the water flow passes through while forming a slow-flow area. Moreover, it adopts a modular assembly structure to adapt to different coral reef terrains (such as reef flats and reef slopes). The surface is designed to be rough or porous to promote the attachment of coral larvae and the habitation of marine organisms.

[0038] The present disclosure also provides a seawater cooling control method, which is applied to the seawater cooling control system described in any one of the above embodiments, as Figure 2 shown, and includes the following steps: Step 201: Monitor the temperature distribution in the cooling water well through the first temperature sensor and transmit the first temperature value to the controller.

[0039] Step 202: Measure the temperature distribution of the sea area through the second temperature sensor and transmit the second temperature value to the controller; Step 203: Measure the flow velocity distribution in the coral reef area through the flow velocity meter and transmit the environmental flow velocity in the coral reef area to the controller; Step 204: Transmit the water level data of the cooling water well to the controller through the water level meter to judge the water level height in the cooling water well.

[0040] In this example, the above steps 201 to 204 constitute the data acquisition process in the seawater cooling control method, providing real-time input for the core control logic: The first temperature sensor is arranged vertically and layer by layer in the cooling water well to detect the temperature distribution of each water layer in real time (for example, the surface layer is 26°C, the middle layer is 27°C, and the bottom layer is 28°C), ensuring that the highest temperature (the first temperature value) in the well ≤ 28°C. This threshold is set based on the coral heat tolerance limit to prevent the transmission of ineffective high-temperature water.

[0041] 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 > 30.5°C (the critical threshold for coral bleaching), it triggers the cooling demand and provides the starting condition for subsequent water conveyance.

[0042] The flow velocity meter, namely the acoustic Doppler velocimeter, is used to measure the flow velocity distribution in the coral reef area (such as 0.08 - 0.12 m / s). When the flow velocity is too high (> 0.16 m / s), the water conveyance volume needs to be increased to offset the water flow scouring. When the flow velocity is too low (< 0.04 m / s), the water conveyance is reduced to avoid local overcooling.

[0043] The water level gauge has a safety range of 10 - 12 meters. Among them, the lower limit (10 meters) ensures sufficient reserve of cooling water, and the upper limit (12 meters) prevents the risk of overflow. Based on this, the controller dynamically starts and stops the water pump to maintain a stable water volume.

[0044] Step 205: When the water level height is lower than the first height threshold, the controller controls to turn on the water pump to pump seawater into the cooling well. Step 206: When the water level height is higher than the second height threshold, the controller controls to turn off the water pump; the second height threshold is greater than the first height threshold.

[0045] In this example, the above steps 205 - 206 constitute the water level control process in the seawater cooling control method.

[0046] When the water level gauge detects that the water level in the well is lower than 10 meters (the lowest safety water level), the controller immediately starts the water pump to pump seawater from the sea area to supplement the cooling well. A pressure - type or ultrasonic water level sensor is used, and the measurement error ≤ ±0.1 meters; the water pump runs at the maximum power (such as 200 m³ / h) until the water level recovers to 10.5 meters (the buffer threshold) to prevent frequent start - stop and avoid the water pump running idle due to insufficient water volume in the well or the interruption of cooling water supply, ensuring the continuous operation of the system.

[0047] When the water level gauge detects that the water level height in the well is higher than 12 meters (the highest safety water level), the controller immediately turns off the water pump to stop water replenishment. An overflow port (diameter ≥ 0.5 meters) is set at the top of the cooling well, and when the water level exceeds 12.5 meters, it automatically drains to the external sea area; after turning off the water pump, when the water level drops below 12 meters due to natural evaporation or water consumption during water conveyance, the controller allows water replenishment again, thereby preventing the well structure from being damaged due to excessive water pressure and reducing energy waste.

[0048] Step 207: The controller controls the output flow rate of the water conveyance pump using a fuzzy control algorithm based on the first temperature value, the second temperature value, and the ambient flow rate.

[0049] In this example, the four types of data collected in the above steps 201 - 204 are integrated by the controller to form a multi - dimensional decision - making model of "temperature - flow rate - water level". For example, only when the second temperature value > 30.5 °C and the first temperature value ≤ 28 °C, the controller starts the fuzzy algorithm to adjust the water conveyance flow rate according to the ambient flow rate; in addition, when the water level is abnormal, the controller preferentially executes water replenishment or pump shutdown to ensure the balance between system safety and efficiency.

[0050] In an example, the controller controls the output flow rate of the water conveyance pump using a fuzzy control algorithm based on the first temperature value, the second temperature value, and the ambient flow rate, as Figure 3 shown, including: Step 301: Transmit the second temperature value collected by the second temperature sensor to the controller to determine whether the second temperature value is higher than the coral bleaching threshold temperature.

[0051] In this example, when the second temperature sensor monitors the second temperature value of the coral reef area in real time , when (coral bleaching threshold temperature), enter the cooling control process. By starting water conveyance only when corals are at risk of heat stress, unnecessary interference with the marine environment is reduced.

[0052] 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.

[0053] In this example, the controller further checks the first temperature value of the cooling water well whether ≤ 28°C (cooling water threshold temperature). If > 28°C, it means that the water temperature stored in the cooling water well does not meet the standard, and step 303 is executed to close the water pump; if ≤ 28°C, confirm that the cooling water is effective, and execute step 304 to start the fuzzy control algorithm. The present disclosure avoids transporting ineffective high-temperature water through dual temperature verification ( and ), ensuring the cooling effect.

[0054] Step 303: When the first temperature value is higher than the cooling water threshold temperature, the controller controls to close the water pump.

[0055] In this example, when the first temperature value is higher than the cooling water threshold temperature, the controller immediately closes the water pump to stop the conveyance of cooling water. By linking with the water level gauge, if the water level is lower than 10 meters at this time, priority is given to pumping and replenishing water.

[0056] Step 304: When the first temperature value is lower than the cooling water threshold temperature, the controller obtains the internal flow rate of the coral reef area collected by the flow meter and controls the output flow rate of the water pump using the fuzzy control algorithm.

[0057] In this example, when the first temperature value is lower than the cooling water threshold temperature, the controller obtains the internal flow rate of the coral reef area collected by the flow meter and controls the output flow rate of the water pump using the fuzzy control algorithm, as Figure 4 shown, including: Step 3041: Divide the difference between the second temperature value and the coral bleaching threshold temperature into multiple temperature intervals to determine the current temperature difference level.

[0058] For example, the temperature difference level ( ): The difference is divided into 5 levels (0 - 0.5 °C, 0.5 - 1 °C, 1 - 1.5 °C, 1.5 - 2 °C, > 2 °C), and the current temperature difference level is obtained.

[0059] Step 3042: Divide the flow velocity within the coral reef area into multiple flow velocity intervals to obtain the current flow velocity level.

[0060] For example, the flow velocity level ( ): The flow velocity within the coral reef area is divided into 5 levels (0 - 0.04 m / s, 0.04 - 0.08 m / s, 0.08 - 0.12 m / s, 0.12 - 0.16 m / s, > 0.16 m / s), and the current flow velocity level is obtained.

[0061] Step 3043: Determine the output flow rate of the water pump according to the current temperature difference level, the current flow velocity level, and the maximum flow rate of the water pump.

[0062] Specifically, the following algorithm formula is used to calculate the output flow rate of the water pump: Output flow rate , where: is the maximum flow rate of the water pump (200 m³ / h), (number of interval levels); For example: When (temperature difference 1 - 1.5 °C), (flow velocity 0.04 - 0.08 m / s), .

[0063] Finally, the controller adjusts the rotational speed of the water pump through a frequency converter or valve opening to match the target flow rate.

[0064] In one example, the method further includes: placing artificial fish reefs around the coral reef area so that water can enter the coral reef area through the artificial fish reefs.

[0065] In this example, permeable artificial fish reefs are placed around the periphery of the coral reef area at a specific spacing (such as 5 - 10 meters) to form a circular or grid - shaped barrier, allowing part of the water flow to enter the coral reef area through the openings, while reducing the overall flow velocity. The porosity of the openings is 25%, ensuring that a controllable slow - flow area is formed when the water flow passes through (the flow velocity drops from 0.16 m / s to below 0.08 m / s); modular - spliced concrete frames or eco - friendly composite materials are used, and the surface is roughened to promote the attachment of coral larvae. The artificial fish reefs disperse the water flow energy through the openings, part of the water flow enters the coral reef area through the holes, and the other part bypasses the reef body, forming a low - speed eddy area and prolonging the residence time of the cooling water.

[0066] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this disclosure can be executed 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, and no limitations are imposed herein.

[0067] In addition, 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this disclosure, "a plurality of" means two or more, unless otherwise specifically defined.

[0068] As described above, the above are only specific embodiments of this disclosure, but the protection scope of this disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed in this disclosure can easily think of changes or substitutions, which should all be covered by the protection scope of this disclosure. Therefore, the protection scope of this disclosure should be subject to the protection scope of the claims.

Claims

1. A seawater cooling control system, characterized in that, 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 velocity meter, and a controller, wherein: The cooling water well is used for storing seawater and cooling the seawater; The first temperature sensor is used for monitoring the temperature distribution in the cooling water well and transmitting a first temperature value to the controller; The water level gauge is used for measuring the water level of the cooling water well and transmitting water level data to the controller; The water pump is used for pumping seawater from the sea area and delivering it into the cooling water well; The water delivery pump is used for delivering the cooled seawater to the coral reef area; The monitoring buoy is used for mounting the second temperature sensor and the flow velocity meter; The second temperature sensor is used for measuring the temperature distribution of the sea area and transmitting a second temperature value to the controller; The flow velocity meter is used for measuring the flow velocity distribution in the coral reef area and transmitting the ambient flow velocity in the coral reef area to the controller; The controller is used for controlling the start / stop and flow rate of the water pump and the water delivery pump according to the first temperature value, the second temperature value, the water level data, and the ambient flow velocity by using a fuzzy control algorithm.

2. The seawater cooling control system according to claim 1, wherein The cooling water well adopts a stratified water intake structure and includes a heat insulation material layer.

3. The seawater cooling control system according to claim 1, wherein The system further includes a water intake pipeline and a water supply pipeline; The water intake pipeline is used for connecting the seawater with the cooling water well and delivering the seawater into the cooling water well; The water supply pipeline is used for connecting the cooling water well with the seawater and delivering the seawater in the cooling water well to the coral reef area.

4. The seawater cooling control system according to claim 1, wherein The system further includes artificial fish reefs; The artificial fish reefs are arranged around the coral reef area and are used for forming a slow flow area to extend the residence time of the cooling water.

5. A seawater cooling control method, applied to the system according to any one of claims 1-4, characterized in that, Including the following steps: Monitoring the temperature distribution in the cooling water well through the first temperature sensor and transmitting the first temperature value to the controller; Measuring the temperature distribution of the sea area through the second temperature sensor and transmitting the second temperature value to the controller; Measuring the flow velocity distribution in the coral reef area through the flow velocity meter and transmitting the ambient flow velocity in the coral reef area to the controller; Transmitting the water level data of the cooling water well to the controller through the water level gauge to judge the water level height in the cooling water well; When the water level height is lower than the first height threshold, the controller controls to start the water pump and pump the seawater into the cooling water well; When the water level height is higher than the second height threshold, the controller controls to stop the water pump; the second height threshold is greater than the first height threshold; The controller controls the output flow rate of the water delivery pump according to the first temperature value, the second temperature value, and the ambient flow velocity by using a fuzzy control algorithm.

6. The seawater cooling control method according to claim 5, characterized in that, The controller controls the output flow rate of the water delivery pump according to the first temperature value, the second temperature value, and the ambient flow velocity by using a fuzzy control algorithm, including: Transmitting the collected second temperature value to the controller through the second temperature sensor to judge 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 judge 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 stop the water delivery pump; When the first temperature value is lower than the cooling water threshold temperature, the controller acquires the internal flow velocity in the coral reef area collected by the flow meter and controls the output flow rate of the water pump using a fuzzy control algorithm.

7. The seawater cooling control method according to claim 6, characterized in that The controlling of the output flow rate of the water pump using the fuzzy control algorithm includes: Dividing the difference between the second temperature value and the coral bleaching threshold temperature into multiple temperature intervals to determine the current temperature difference level; Dividing the flow velocity in the coral reef area into multiple flow velocity intervals to obtain the current flow velocity level; Determining the output flow rate of the water pump according to the current temperature difference level, the current flow velocity level, and the maximum flow rate of the water pump.

8. The seawater cooling control method according to claim 7, 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.

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

10. The seawater cooling control method according to claim 5, characterized in that, The method further includes: Deploying artificial fish reefs around the coral reef area so that water can enter the coral reef area through the artificial fish reefs.

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