A method, apparatus, and equipment for cooling tidal flat cables using seawater.

Abstract

This invention relates to the field of cable current carrying capacity technology, and particularly to a method, apparatus, and equipment for cooling tidal flat cables using seawater. The method includes: real-time monitoring of seawater level, water level in a storage tank, and the temperature of the tidal flat cable; performing pumping operations when the seawater level rises to a preset level, wherein the preset level is set based on the water level in the storage tank and a water level threshold in the tank; controlling the flow rate at the outlet of the storage tank to cool the tidal flat cable when the temperature of the tidal flat cable exceeds the preset temperature for a certain duration; adjusting the flow rate at the outlet of the storage tank according to the duration the temperature of the tidal flat cable exceeds the preset temperature, so that the flow rate adapts to the temperature of the tidal flat cable, avoiding waste of the seawater reserves in the storage tank and reducing energy consumption during subsequent pumping operations; this method not only ensures that the tidal flat cable is adequately cooled during tidal rise and fall, making the cable safe to operate and achieving maximum current carrying capacity, but also improves the utilization efficiency of the seawater in the storage tank and reduces the energy consumption of pumping operations.

Description

Technical Field

[0001] This invention relates to the field of cable current carrying capacity technology, and in particular to a method, apparatus and equipment for cooling tidal flat cables using seawater. Background Technology

[0002] Currently, with the rapid development of the offshore wind power industry, the application of power cables is becoming increasingly widespread. Based on the different installation environments, they can be divided into submarine cables, tidal flat cables, and onshore cables. For submarine cables, the entire cable is located underwater, where the ambient temperature is relatively stable and heat dissipation is good. For onshore cables, the cable is in an indoor environment, which not only provides sun protection and insulation but also allows for various commonly used cable cooling methods due to the favorable environment. However, for tidal flat cables, the surrounding environment fluctuates with the tides, resulting in poor heat dissipation in the dry environment.

[0003] To ensure the safe operation of the cable, the current carrying capacity of the tidal flat cable is limited by temperature, which affects the power transmission efficiency. Summary of the Invention

[0004] This invention provides a method for cooling tidal flat cables using seawater, which solves the problem that the current carrying capacity of tidal flat cables is limited by temperature in a waterless environment in the prior art.

[0005] The first aspect of this invention provides a method for cooling tidal flat cables using seawater, comprising:

[0006] Real-time monitoring of seawater level, water tank level, and temperature of cables on the tidal flats;

[0007] When the seawater level rises to a preset level, a pumping operation is performed. The preset level is set based on the water level in the storage tank and a water level threshold in the tank.

[0008] When the temperature of the tidal flat cable is greater than the preset temperature, it is determined whether the duration of the tidal flat cable temperature being greater than the preset temperature is greater than the time threshold. If so, the water outlet of the water storage tank is opened and the flow rate is set to the first flow rate value, so that the seawater in the water storage tank can be used to cool the tidal flat cable.

[0009] The system obtains the duration for which the temperature of the tidal flat cable exceeds a preset temperature, and determines whether the duration exceeds a preset time. If so, the flow rate at the outlet is increased; otherwise, the outlet of the water storage tank is closed.

[0010] Optionally, after performing the pumping operation, the method further includes:

[0011] The extracted seawater is filtered and then stored in a water tank.

[0012] When the water level in the tank exceeds the water level threshold, the temperature of the seawater in the tank is monitored. When the temperature of the seawater in the tank is greater than the preset temperature and the seawater level is above the preset water level, the seawater in the tank is discharged and a pumping operation is carried out simultaneously.

[0013] Optionally, after monitoring the temperature of the seawater in the water storage tank, the method further includes:

[0014] When the seawater temperature in the storage tank is lower than the seawater freezing temperature, the inlet and outlet of the storage tank are directly connected, and the power of the pumping motor is controlled according to the temperature of the tidal flat cable. The higher the temperature of the tidal flat cable, the greater the power of the pumping motor.

[0015] Optionally, determining whether the duration exceeds a preset time, and if so, increasing the flow rate at the outlet; otherwise, closing the outlet of the water storage tank, specifically includes:

[0016] Determine whether the duration exceeds a preset time. If so, determine whether the outlet flow rate has reached its maximum. If not, determine whether the outlet flow rate is the first flow rate value.

[0017] Optionally, if so, determining whether the outlet flow rate has reached its maximum at this time specifically includes:

[0018] If not, increase the water flow at the outlet; if yes, issue an alarm and notify staff.

[0019] Optionally, if not, then after determining whether the outlet flow rate is the first flow rate value, the specific steps include:

[0020] If yes, then close the water outlet of the storage tank; otherwise, reduce the water flow rate at the outlet.

[0021] Optionally, the preset time is adjusted according to the flow rate at the outlet; the higher the flow rate, the shorter the preset time.

[0022] The second aspect of this application provides a tidal flat cable cooling device that utilizes seawater, comprising: a water pump, a water storage tank, an outlet flow controller, a water pipe, a seawater level sensor, a water storage tank level sensor, several temperature sensors, and a computer.

[0023] The pumping motor, the outlet flow controller, the seawater level sensor, the water tank level sensor, and the temperature sensor are all electrically connected to the computer. The seawater level sensor is used to monitor the seawater level and send the data to the computer. The water tank level sensor is used to monitor the water tank level and send the data to the computer. The temperature sensor is used to monitor the temperature of the tidal flat cable and send the data to the computer.

[0024] The pumping motor is connected to the water storage tank via a pipeline and is used to receive computer instructions to pump seawater into the water storage tank.

[0025] The water flow controller is connected to the water outlet of the water storage tank and is used to control the water flow at the outlet according to computer instructions;

[0026] The water pipe is used to store the tidal flat cable; the outlet of the water storage tank is connected to the water pipe, and the water storage tank is used to input the stored seawater into the water pipe to cool the tidal flat cable inside the water pipe.

[0027] The computer is used to control the pumping motor based on the seawater level and the water level in the storage tank, and to control the outflow controller based on the temperature of the tidal flat cable.

[0028] Optionally, a filter device is also provided between the water pipe connecting the pumping motor and the water storage tank to filter out impurities in the seawater.

[0029] A third aspect of this application provides a tidal flat cable cooling device utilizing seawater, the device comprising a processor and a memory:

[0030] The memory is used to store program code and transmit the program code to the processor;

[0031] The processor is configured to execute, according to instructions in the program code, the method for cooling tidal flat cables utilizing seawater as described in any of the first aspects of the present invention.

[0032] As can be seen from the above technical solutions, the present invention has the following advantages: by monitoring the seawater level and the water level in the storage tank, a preset water level is set for pumping operations to replenish the storage tank, reducing the energy consumption of pumping; and by monitoring the temperature change of the tidal flat cable, the outflow rate of the storage tank is adjusted so that the outflow rate is adapted to the temperature of the tidal flat cable, avoiding waste of the seawater reserves in the storage tank and reducing the energy consumption of subsequent pumping operations; it not only ensures that the tidal flat cable can be sufficiently cooled during tidal rise and fall, making the cable safe to operate and achieving maximum current carrying capacity, but also improves the utilization efficiency of the seawater in the storage tank and reduces the energy consumption of pumping operations. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of the process for cooling tidal flat cables using seawater provided in this application;

[0035] Figure 2 A second process diagram illustrating the seawater-based tidal flat cable cooling method provided in this application;

[0036] Figure 3 A schematic diagram illustrating the process of adjusting the outlet flow rate for the seawater cooling method using tidal flat cables provided in this application.

[0037] Figure 4 This is a schematic diagram of the structure of the tidal flat cable cooling device that utilizes seawater, as provided in this application.

[0038] The attached figures are labeled as follows:

[0039] 1. Water pump motor; 2. Water storage tank; 21. Water flow controller; 22. Water pipe; 11. Seawater level sensor; 23. Water storage tank level sensor; 24. Temperature sensor; 3. Computer. Detailed Implementation

[0040] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0041] This invention provides a method for cooling tidal flat cables using seawater, which solves the problem that the current carrying capacity of tidal flat cables is limited by temperature in a waterless environment in the prior art.

[0042] In this embodiment, the water storage tank is located on the landward side of the tidal flat cable. After opening the outlet of the water storage tank, the seawater inside can flow along the tidal flat cable, thus cooling it. Please refer to [link / reference]. Figure 1 , Figure 1 A flowchart illustrating a method for cooling tidal flat cables using seawater, provided in an embodiment of the present invention.

[0043] S100, real-time monitoring of seawater level, water tank level and temperature of tidal flat cables;

[0044] It should be noted that the daily tide times vary with the moon's movement and are difficult to predict accurately. Therefore, monitoring seawater levels is used to track tide conditions, which facilitates subsequent pumping operations and cable cooling. Due to the complex beach environment where the tidal flat cable is located and the constantly changing tide levels, the temperature distribution of the tidal flat cable is uneven. In this embodiment, multiple temperature sensors are installed at equal intervals along the tidal flat cable to detect the temperature at different locations on the cable, achieving overall temperature monitoring of the tidal flat cable. In actual implementation, the spacing of the temperature sensors can be adjusted according to the actual environmental conditions and requirements.

[0045] S200. When the seawater level rises to the preset water level, a pumping operation is performed. The preset water level is set according to the water level in the water tank and the water tank water level threshold.

[0046] It should be noted that the higher the seawater level, the less power is required to pump the same amount of seawater. The preset water level is determined based on the water level in the storage tank and the water level threshold of the storage tank. The smaller the difference between the water level threshold and the water level in the storage tank, the higher the preset water level. Specifically, the pumping volume is first calculated based on the difference between the water level threshold and the water level in the storage tank. Then, the pumping time is calculated based on the pumping volume and the pumping motor power. Finally, the preset water level is set according to the tidal conditions and the pumping time to minimize the power consumption required to raise the water level in the storage tank to the threshold water level. The water level threshold of the storage tank is set based on the total amount of seawater consumed by continuous cable cooling within a certain period, such as the total amount of water at the outlet during a complete low tide period. In actual implementation, the preset water level changes dynamically according to the water level in the storage tank.

[0047] S300. When the temperature of the tidal flat cable is greater than the preset temperature, determine whether the duration of the tidal flat cable temperature being greater than the preset temperature is greater than the time threshold. If so, open the outlet of the water storage tank and set the flow rate to the first flow rate value to cool the tidal flat cable with seawater in the water storage tank.

[0048] It should be noted that the preset temperature is set to be less than or equal to the full-load flow temperature. The full-load flow temperature is the highest temperature at which the submarine cable can operate safely. The highest temperature at which the submarine cable can operate safely varies depending on the model or material used. In this embodiment, the preset temperature is determined in advance based on the model and material of the submarine cable, and seawater is used to cool the cable to ensure that the temperature of the tidal flat cable does not exceed the preset temperature for too long.

[0049] When the temperature at any point on the tidal flat cable exceeds the preset temperature for an extended period, insulation thermal breakdown may occur, rendering the entire cable unusable. Therefore, if the temperature detected by the temperature sensor at any point on the tidal flat cable exceeds the preset temperature for a duration exceeding the time threshold, the tidal flat cable needs to be cooled. When the duration does not exceed the time threshold, insulation thermal breakdown will not occur, so there is no need to open the water outlet to avoid excessively rapid response from the water outlet leading to increased water consumption in the storage tank. In actual implementation, the time threshold is determined based on the breakdown time of different submarine cable models or materials under full-load flow temperature.

[0050] In this embodiment, the minimum flow rate of the first flow rate outlet is adjusted according to different seasons and specific areas. The lower the temperature in the area where the tidal flat cable is located or the lower the seasonal temperature, the smaller the first flow rate value is set.

[0051] S400: Obtain the duration for which the temperature of the tidal flat cable exceeds a preset temperature, and determine whether the duration exceeds a preset time. If yes, increase the flow rate at the outlet; otherwise, close the outlet of the water storage tank.

[0052] It should be noted that the larger the flow rate of the outlet, the more seawater is released at the same time, the greater the heat exchange, and the more obvious the cooling effect on the tidal flat cable. However, due to the influence of tides, day and night, and seasonal changes, the ambient temperature and heat dissipation conditions are constantly changing, and the cooling requirements of the tidal flat cable are also changing. If the duration of the tidal flat cable temperature being higher than the preset temperature exceeds the preset time, it indicates that the current cooling effect on the tidal flat cable is insufficient, and the outlet flow rate or the preset first flow rate value cannot meet the cooling requirements, i.e., the water flow rate needs to be increased. Conversely, if the duration of the tidal flat cable temperature being less than or equal to the preset temperature exceeds the preset time, it indicates that the cooling effect on the tidal flat cable is sufficient, and the current flow rate has effectively reduced the temperature of the tidal flat cable, restoring it to a safe working state. Therefore, at this time, the outlet can be closed to allow it to cool down naturally. In practice, if the temperature of the tidal flat cable rises again, the process will return to step S300 to determine whether the outlet needs to be opened. If the minimum flow rate of the outlet is just enough to meet the cooling requirements of the tidal flat cable, the cable can be intermittently cooled by repeatedly opening and closing the outlet, thus avoiding the cable temperature from remaining at a high level for a long time and saving water.

[0053] Through this step, the flow rate of the water tank outlet can be adaptively adjusted according to the temperature changes of the tidal flat cable. When the cooling demand of the tidal flat cable decreases, it can effectively reduce the consumption of seawater reserves in the water tank and reduce the energy consumption of pumping operations. When the cooling demand increases, the outlet flow rate can be increased based on the first flow rate value to ensure the safe operation of the tidal flat cable and meet the maximum current carrying capacity.

[0054] In this embodiment, by monitoring the seawater level and the water level in the storage tank, a preset water level is set for pumping operations to replenish the storage tank, reducing the energy consumption of pumping. Furthermore, by monitoring the temperature changes of the tidal flat cable, the outflow rate of the storage tank is adjusted to adapt the outflow rate to the temperature of the tidal flat cable, avoiding waste of the seawater reserves in the storage tank and reducing the energy consumption of subsequent pumping operations. This not only ensures that the tidal flat cable is adequately cooled during tidal rise and fall, ensuring cable operation safety and achieving maximum current carrying capacity, but also improves the utilization efficiency of the seawater in the storage tank, reducing the energy consumption of pumping operations.

[0055] The above is a detailed description of the first embodiment of a method for cooling tidal flat cables using seawater provided in this application. The following is a detailed description of the second embodiment of a method for cooling tidal flat cables using seawater provided in this application.

[0056] This embodiment further provides a specific example of step S200 in the method for cooling tidal flat cables using seawater. Please refer to [link to relevant documentation]. Figure 2 In this embodiment, step S200 specifically includes steps S201-S203, as detailed below:

[0057] S201. When the seawater level rises to the preset level, a pumping operation is performed. The pumped seawater is filtered and stored in a water storage tank. The preset level is set according to the water level in the water storage tank and the water level threshold of the water tank.

[0058] It should be noted that the extracted seawater needs to be filtered through a filtration system. Seawater contains fish, shrimp, crabs, mud, sand, and other debris or objects. If it is not filtered, it may cause blockage of the water outlet of the storage tank. Filtration ensures smooth flow of seawater during pumping operations and water cooling.

[0059] S202. When the water in the water tank exceeds the water level threshold, monitor the temperature of the seawater in the water tank. When the temperature of the seawater in the water tank is greater than the preset temperature and the seawater is above the preset water level, drain the seawater from the water tank and simultaneously carry out pumping operations.

[0060] It should be noted that in hot weather, the seawater temperature may rise after being stored in the tank for a period of time. Although it can still cool the cable, the heat exchange rate will decrease due to the smaller temperature difference between the seawater and the tidal flat cable, affecting the cooling effect. At a certain water level, the seawater temperature is less affected by weather and may be lower than the water temperature in the tank. Regularly replacing the seawater in the tank lowers the water temperature and ensures the cooling effect on the tidal flat cable. The preset temperature is set according to the ambient temperature and the heat exchange efficiency of the tidal flat cable.

[0061] S203. When the seawater temperature in the storage tank is lower than the seawater freezing temperature, the inlet and outlet of the storage tank are directly connected, and the power of the pumping motor is controlled according to the temperature of the tidal flat cable. The higher the temperature of the tidal flat cable, the greater the power of the pumping motor.

[0062] It should be noted that although the ambient temperature is low, cooling the submarine cable cannot rely solely on cold air. The heat exchange efficiency of ambient gases is not as good as that of liquids. Therefore, in low-temperature weather, liquid cooling may also be necessary. In cold weather, the seawater in the storage tank may freeze and become stagnant. However, ocean water is relatively resistant to freezing. In this case, when the temperature of the cable on the tidal flat is too high, seawater can be pumped directly to cool the cable, avoiding the situation where the seawater freezes in the storage tank and cannot be used for cooling. By directly connecting the inlet and outlet of the storage tank, when the temperature of the cable on the tidal flat reaches the preset temperature, the pump motor is turned on to directly pump seawater to cool the cable. The power of the pump motor is controlled according to the temperature of the cable on the tidal flat; the higher the temperature of the cable on the tidal flat, the higher the power of the pump motor, thus achieving adaptive flow control. Furthermore, if the seawater freezes around the cable on the tidal flat, its cooling effect will be more significant than that of flowing seawater.

[0063] In this embodiment, by monitoring the water temperature in the storage tank, when the water temperature is high, the seawater in the storage tank is replaced in a timely manner to lower the water temperature in the storage tank, maintain the temperature difference between the water temperature in the tank and the tidal flat cable, and improve the cooling efficiency of the tidal flat cable; when the water temperature in the storage tank is too low, seawater is directly drawn from the inlet and outlet inside the storage tank to cool the tidal flat cable, avoiding the seawater freezing in the storage tank and affecting the seawater circulation, so that the tidal flat cable can be effectively cooled in various temperatures throughout the four seasons.

[0064] The above is a detailed description of the second embodiment of a method for cooling tidal flat cables using seawater provided in this application. The following is a detailed description of the third embodiment of a method for cooling tidal flat cables using seawater provided in this application.

[0065] This embodiment further provides a specific example of step S400 in the method for cooling tidal flat cables using seawater. Please refer to [link to relevant documentation]. Figure 3 In this embodiment, step S400 further includes steps S401-S404, as detailed below:

[0066] S401. Determine whether the duration exceeds the preset time. If not, proceed to step 404. If yes, determine whether the outlet flow rate has reached the maximum. If not, proceed to step S402. If yes, proceed to step S403.

[0067] It should be noted that if the temperature of the tidal flat cable remains above the preset temperature for a longer period than the preset time, it indicates that the current outlet flow rate is low and the heat exchange efficiency cannot meet the cooling requirements of the tidal flat cable, and the outlet flow rate needs to be increased.

[0068] Furthermore, the preset time can be set to a fixed value or changed according to the current flow rate at the outlet. The higher the flow rate, the shorter the preset time. It's understood that a higher water flow rate leads to faster heat exchange, so the temperature change of the tidal flat cable should be more pronounced. By shortening the preset time, the time required to adjust the outlet flow rate is reduced, allowing the tidal flat cable to cool down to a safe temperature as quickly as possible, thus eliminating risks. In practical implementation, the outlet flow rate can be divided into multiple levels, with different levels corresponding to different preset times.

[0069] S402, Increase the outlet flow rate;

[0070] It should be noted that if the outlet flow rate is not at its maximum, the outlet flow rate can be increased to increase the heat exchange efficiency and make the cooling capacity meet the cooling requirements of the tidal flat cable.

[0071] S403. Issue an alarm and notify staff;

[0072] It should be noted that if the temperature of the tidal flat cable cannot be controlled even when the outlet flow rate reaches its maximum, staff need to take emergency measures to protect the tidal flat cable. They should also determine whether there is a problem with the material selection of the tidal flat cable based on the temperature situation, or reset the flow rate of the tidal flat cable cooling system, such as by enlarging the opening at the outlet or increasing the power of the booster valve and water pump to further increase the water flow rate to meet the cooling requirements.

[0073] With the impact of global warming, future ambient temperatures may experience extreme high temperatures, and the originally preset maximum outlet flow rate may not be able to meet the cooling demand. In this embodiment, by modifying the outlet, expanding the outlet opening, increasing the pressure of the outlet valve, and increasing the power of the water pump, the outlet flow rate can be further increased to meet the cooling demand under the increasingly high temperature.

[0074] S404. Determine whether the outlet flow rate is the first flow rate value. If not, proceed to step S405. If yes, proceed to step 406.

[0075] It should be noted that in order to match the outlet flow rate with the temperature of the tidal flat cable, minimize the amount of seawater used in the storage tank, and reduce the energy consumption when pumping water into the storage tank, the outlet flow rate needs to be reduced when it can significantly control the temperature of the tidal flat cable.

[0076] It should be noted that after the water tank outlet is closed, the process returns to step S300 to re-determine whether the water tank outlet needs to be opened.

[0077] S405, Reduce the outlet flow rate.

[0078] S406. Close the water outlet of the water storage tank.

[0079] In this embodiment, by adaptively changing the water flow rate of the cooling system, the efficiency of seawater use in the water storage tank can be improved while the seawater consumption in the water storage tank can be reduced, thus reducing the energy consumption for pumping water into the water storage tank and lowering costs.

[0080] The above is a detailed description of the third embodiment of a method for cooling tidal flat cables using seawater provided in this application. The following is a detailed description of a device for cooling tidal flat cables using seawater provided in the second aspect of this application.

[0081] Please see Figure 4 , Figure 4 This diagram illustrates a device for cooling cables in tidal flats using seawater. This embodiment provides a device for measuring the aging life of high-voltage AC cable insulation under an electrothermal composite field, comprising:

[0082] 1. Water pump motor; 2. Water storage tank; 21. Water flow controller; 22. Water pipe; 11. Seawater level sensor; 23. Water storage tank level sensor; 24. Several temperature sensors; and 3. Computer.

[0083] The pumping motor 1, the outlet flow controller 21, the seawater level sensor 11, the water tank level sensor 23, and the temperature sensor 24 are all electrically connected to the computer 3. The seawater level sensor 11 is used to monitor the seawater level and send the data to the computer 3. The water tank level sensor 23 is used to monitor the water level in the water tank 2 and send the data to the computer 3. The temperature sensor 24 is used to monitor the temperature of the tidal flat cable and send the data to the computer 3.

[0084] The pumping motor 1 is connected to the water storage tank 2 via a pipeline and is used to receive instructions from the computer 3 to pump seawater into the water storage tank 2.

[0085] The water flow controller 21 is connected to the water outlet of the water storage tank 2 and is used to control the water flow at the outlet according to the instructions of the computer 3.

[0086] The water pipe 22 is used to store the tidal flat cable; the outlet of the water storage tank 2 is connected to the water pipe 22, and the water storage tank 2 is used to input the stored seawater into the water pipe 22 to cool the tidal flat cable in the water pipe 22.

[0087] The computer 3 is used to control the pumping motor 1 according to the seawater level and the water level in the storage tank, and to control the water flow controller 21 according to the temperature of the tidal flat cable.

[0088] Furthermore, a filter device is also provided between the water pump 1 and the water storage tank 2 to filter out impurities in the seawater.

[0089] Furthermore, a cable trough is provided on the beach mudflat, which is adapted to the water pipe 22 and is used to accommodate the water pipe 22.

[0090] Furthermore, the other end of the water pipe 22 that connects to the ocean is provided with an opening.

[0091] It should be noted that after one end of the water pipe 22 is connected to the outlet of the water storage tank, seawater in the water storage tank can enter the water pipe 22 to cool the tidal flat cable. The other end of the water pipe 22 flows back into the ocean. At high tide, seawater can flow back from the opening at the end of the water pipe 22 that connects to the ocean to cool the tidal flat cable.

[0092] A third aspect of this application also provides a device for cooling tidal flat cables using seawater, including a processor and a memory: wherein the memory is used to store program code and transmit the program code to the processor; the processor is used to execute the above-described method for cooling tidal flat cables using seawater according to the instructions in the program code.

[0093] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the above-described apparatus and equipment can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0094] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between apparatuses or units through some interfaces, and may be electrical, mechanical, or other forms.

[0095] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0096] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0097] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0098] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for cooling tidal flat cables using seawater, characterized in that, include: Real-time monitoring of seawater level, water tank level, and temperature of cables on the tidal flats; When the seawater level rises to a preset level, a pumping operation is performed. The preset level is set based on the water level in the storage tank and a water level threshold in the tank. When the temperature of the tidal flat cable is greater than the preset temperature, it is determined whether the duration of the tidal flat cable temperature being greater than the preset temperature is greater than the time threshold. If so, the water outlet of the water storage tank is opened and the flow rate is set to the first flow rate value, so that the seawater in the water storage tank can be used to cool the tidal flat cable. The system obtains the duration for which the temperature of the tidal flat cable exceeds a preset temperature, and determines whether the duration exceeds a preset time. If so, the flow rate at the outlet is increased; otherwise, the outlet of the water storage tank is closed.

2. The method for cooling tidal flat cables using seawater according to claim 1, characterized in that, After the pumping operation is performed, the following is also included: The extracted seawater is filtered and then stored in a water tank. When the water level in the tank exceeds the water level threshold, the temperature of the seawater in the tank is monitored. When the temperature of the seawater in the tank is greater than the preset temperature and the seawater level is above the preset water level, the seawater in the tank is discharged and a pumping operation is carried out simultaneously.

3. The method for cooling tidal flat cables using seawater according to claim 2, characterized in that, After monitoring the temperature of the seawater in the storage tank, the following is also included: When the seawater temperature in the storage tank is lower than the seawater freezing temperature, the inlet and outlet of the storage tank are directly connected, and the power of the pumping motor is controlled according to the temperature of the tidal flat cable. The higher the temperature of the tidal flat cable, the greater the power of the pumping motor.

4. The method for cooling tidal flat cables using seawater according to claim 1, characterized in that, The determination of whether the duration exceeds a preset time, and if so, the flow rate at the outlet is increased; if not, the outlet of the water storage tank is closed, specifically includes: Determine whether the duration exceeds a preset time. If so, determine whether the outlet flow rate has reached its maximum. If not, determine whether the outlet flow rate is the first flow rate value.

5. A method for cooling tidal flat cables using seawater according to claim 4, characterized in that, If so, then after determining whether the outlet flow rate has reached its maximum, the specific steps include: If not, increase the water flow at the outlet; if yes, issue an alarm and notify staff.

6. A method for cooling tidal flat cables using seawater according to claim 4, characterized in that, If not, then after determining whether the outlet flow rate is the first flow rate value, the specific steps include: If yes, then close the water outlet of the storage tank; otherwise, reduce the water flow rate at the outlet.

7. A method for cooling tidal flat cables using seawater according to claim 1, characterized in that, The preset time changes according to the flow rate at the outlet; the higher the flow rate, the shorter the preset time.

8. A tidal flat cable cooling device utilizing seawater, characterized in that, Includes a tidal flat cable cooling device, processor, and memory; The tidal flat cable cooling device includes a water pump, a water storage tank, a water flow controller, water pipes, a seawater level sensor, a water storage tank level sensor, several temperature sensors, and a computer. The pumping motor, the outlet flow controller, the seawater level sensor, the water tank level sensor, and the temperature sensor are all electrically connected to the computer. The seawater level sensor is used to monitor the seawater level and send the data to the computer. The water tank level sensor is used to monitor the water tank level and send the data to the computer. The temperature sensor is used to monitor the temperature of the tidal flat cable and send the data to the computer. The pumping motor is connected to the water storage tank via a pipeline and is used to receive computer instructions to pump seawater into the water storage tank. The water flow controller is connected to the water outlet of the water storage tank and is used to control the water flow at the outlet according to computer instructions; The water pipe is used to store the tidal flat cable; the outlet of the water storage tank is connected to the water pipe, and the water storage tank is used to input the stored seawater into the water pipe to cool the tidal flat cable inside the water pipe. The computer is used to control the pumping motor based on the seawater level and the water level in the storage tank, and to control the outflow controller based on the temperature of the tidal flat cable. The memory is used to store program code and transmit the program code to the processor; The processor is configured to execute the method for cooling tidal flat cables using seawater as described in any one of claims 1-7, according to instructions in the program code.

9. A tidal flat cable cooling device utilizing seawater according to claim 8, characterized in that, A filter device is also installed between the water pipe connecting the pumping motor and the water storage tank to filter out impurities in the seawater.

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