Submarine data center underwater maintenance system and control method thereof

Abstract

According to the submarine data center underwater maintenance system and the control method thereof provided by the embodiment of the invention, when maintenance personnel need to enter the wet area compartment, the processor adjusts the air pressure of the wet area compartment to be consistent with the seawater pressure outside the cabin based on the data of the wet area pressure sensor, so that the personnel can safely enter and exit through the third sealing cabin door; when a person enters the dry area compartment from the wet area compartment, the processor adjusts the air pressure of the wet area compartment to be the same as the air pressure of the dry area compartment according to data of the dry area pressure sensor, the pressure difference between the two sides of the sealed cabin door is eliminated, and before the person finally enters the equipment cabin, the processor further adjusts the air pressure and humidity of the dry area compartment to be completely consistent with the equipment cabin. A safety overhaul channel for layer-by-layer transition of pressure and environmental parameters is formed, and impact of external seawater pressure on precision equipment in the equipment cabin is avoided. Through the process, special engineering ships such as a floating crane and a barge do not need to be used, the cabin body is lifted out of the water surface for maintenance work, and therefore the maintenance efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the field of computer technology, and in particular to an underwater maintenance system for a submarine data center and a control method thereof. Background Art

[0002] With the deep integration of ocean development and digital construction, submarine data centers, as emerging infrastructure, can reduce the energy consumption required for cooling data centers compared to land data centers. While consuming almost no fresh water resources, they can support higher power density, thereby providing powerful computing power efficiently and stably without occupying land resources.

[0003] Currently, existing submarine data centers typically integrate servers and supporting equipment within a cylindrical hull, which is then sealed and sunk to the seafloor. Repairs and maintenance require specialized engineering vessels, such as floating cranes or barges, to lift the hull out of the water, allowing personnel to access the hull for repairs.

[0004] However, traditionally, special engineering vessels such as floating cranes and barges are used to lift the cabin out of the water for maintenance, which takes a long time and leads to low maintenance efficiency. Summary of the Invention

[0005] The embodiments of the present invention provide an underwater maintenance system for a submarine data center and a control method thereof, which can improve maintenance efficiency.

[0006] In a first aspect, an embodiment of the present invention provides an underwater maintenance system for a submarine data center, the system comprising:

[0007] Equipment cabin, dry area compartment, wet area compartment, processor, dry area pressure sensor, wet area pressure sensor, first sealed cabin door, second sealed cabin door, third sealed cabin door;

[0008] The first sealed hatch is provided between the equipment compartment and the dry compartment, the second sealed hatch is provided between the dry compartment and the wet compartment, and the third sealed hatch is provided between the wet compartment and the seawater outside the compartment.

[0009] The dry area compartment is connected to the equipment cabin and the wet area compartment respectively;

[0010] The dry area pressure sensor is connected to the dry area compartment and the equipment cabin respectively;

[0011] The wet area pressure sensor is connected to the wet area compartment and the seawater outside the cabin respectively;

[0012] The equipment compartment is used to integrate IT equipment, power equipment, refrigeration equipment, and intelligent equipment;

[0013] The dry area pressure sensor is used to detect the air pressure values ​​of the dry area compartment and the equipment cabin and send them to the processor;

[0014] The wet area pressure sensor is used to detect the air pressure values ​​of the wet area compartment and the seawater outside the cabin, and send the pressure values ​​to the processor;

[0015] The processor is used to adjust the air pressure of the wet area compartment to be the same as the seawater pressure outside the cabin based on the air pressure value detected by the wet area pressure sensor when the maintenance personnel enters the wet area compartment; adjust the air pressure of the wet area compartment to be the same as the air pressure of the dry area compartment based on the air pressure value detected by the dry area pressure sensor when the maintenance personnel enters the dry area compartment; and adjust the air pressure and humidity of the dry area compartment to be the same as those of the equipment compartment when the maintenance personnel enters the equipment compartment.

[0016] Preferably,

[0017] The dry area compartment is provided with a dry area aeration device and a water evaporation device;

[0018] Wherein, the dry area aeration device and the water evaporation device are respectively connected to the processor;

[0019] The dry area inflation device is used to adjust the air pressure in the dry area compartment;

[0020] The water evaporation device is used to adjust the humidity in the dry zone compartment;

[0021] The dry area inflation device includes: a dry area reversing valve group, a dry area motor, a dry area air pump, a dry area overflow valve, and a dry area gas storage cylinder;

[0022] The dry area reversing valve group is used to control the flow direction of the gas;

[0023] The dry area motor is used to drive the dry area air pump to operate;

[0024] The dry area air pump is used to fill and discharge gas into the dry area compartment to adjust the air pressure;

[0025] The dry area overflow valve is used to prevent the air pressure in the dry area compartment from exceeding a safety threshold;

[0026] The dry area gas storage cylinder is used to adjust the humidity in the dry area compartment;

[0027] The first end of the dry area reversing valve group is connected to the dry area gas cylinder, and the second end is connected to the dry area compartment;

[0028] The first end of the dry area air pump is connected to the dry area motor, and the second end is connected to the dry area reversing valve group;

[0029] A first end of the dry area overflow valve is connected to the dry area air pump, and a second end is connected to the dry area compartment.

[0030] Preferably,

[0031] The wet area compartment is provided with a wet area aeration device and a water filling and drainage device;

[0032] Wherein, the wet area inflation device is used to adjust the air pressure in the wet area compartment;

[0033] The filling and drainage device is used to control the filling and drainage process of the wet area compartment to adjust the air pressure of the wet area compartment.

[0034] The wet area inflation device includes: a wet area reversing valve group, a wet area motor, a wet area air pump, a wet area overflow valve, and a wet area gas storage cylinder;

[0035] The filling and drainage device includes: a filling and drainage reversing valve group, a filling and drainage motor, a filling and drainage hydraulic pump, and a filling and drainage overflow valve;

[0036] The wet area reversing valve group is used to control the flow direction of the gas;

[0037] The wet area motor is used to drive the wet area air pump to operate;

[0038] The wet area air pump is used to fill and discharge compressed gas into the wet area compartment;

[0039] The wet area overflow valve is used to limit the peak pressure;

[0040] The wet area gas storage cylinder is used to store the compressed gas;

[0041] The filling and drainage reversing valve group is used to switch between the filling and drainage modes;

[0042] The charging and draining motor is used to drive the charging and draining hydraulic pump;

[0043] The filling and drainage hydraulic pump is used to perform seawater injection and discharge operations;

[0044] The filling and draining overflow valve is used to prevent the hydraulic system from overloading;

[0045] The first end of the wet area reversing valve group is connected to the wet area gas cylinder, and the second end is connected to the wet area compartment;

[0046] The first end of the wet area air pump is connected to the wet area motor, and the second end is connected to the wet area reversing valve group;

[0047] The first end of the wet area overflow valve is connected to the wet area air pump, and the second end is connected to the wet area compartment;

[0048] The first end of the filling and drainage reversing valve group is connected to the wet area compartment, and the second end is connected to seawater;

[0049] The first end of the charging and draining hydraulic pump is connected to the charging and draining motor, and the second end is connected to the charging and draining reversing valve group;

[0050] A first end of the filling and draining overflow valve is connected to the hydraulic pump, and a second end thereof is connected to the wet area compartment.

[0051] Preferably,

[0052] The first sealed hatch comprises: a first hatch shell, a first opening and closing mechanism, a first locking mechanism, a first pressing mechanism, and a first sealing structure;

[0053] The second sealed hatch includes: a second hatch shell, a second opening and closing mechanism, a second locking mechanism, a second pressing mechanism, and a second sealing structure;

[0054] The third sealed hatch includes: a third hatch shell, a third opening and closing mechanism, a third locking mechanism, a third pressing mechanism, and a third sealing structure.

[0055] Preferably,

[0056] The first locking mechanism includes: a first locking gear, a first locking pinion, a first support plate, a first locking motor, a first locking block, a first locking connecting rod, a first graphite copper sleeve, a first locking plate, and a first locking block support;

[0057] The second locking mechanism includes: a second locking gear, a second locking pinion, a second support plate, a second locking motor, a second locking block, a second locking connecting rod, a second graphite copper sleeve, a second locking plate, and a second locking block support;

[0058] The third locking mechanism includes: a third locking gear, a third locking pinion, a second support plate, a third locking motor, a third locking block, a third locking connecting rod, a third graphite copper sleeve, a third locking plate, and a third locking block support;

[0059] The first pressing mechanism includes: a first pressing motor, a first pressing rod, a first motor bracket, a first cam, and a first support spring;

[0060] The second pressing mechanism includes: a second pressing motor, a second pressing rod, a second motor bracket, a second cam, and a second support spring;

[0061] The third pressing mechanism includes: a third pressing motor, a third pressing rod, a third motor bracket, a third cam, and a third support spring;

[0062] The first sealing structure includes: a first door shell, a first O-ring, and a first sealing bolt;

[0063] The second sealing structure includes: a second door shell, a second O-ring, and a second sealing bolt;

[0064] The third sealing structure includes: a third door shell, a third O-ring, and a third sealing bolt;

[0065] The first locking motor is fixed to the first supporting plate, driving the first locking pinion to engage with the first locking gear. The first locking gear is coaxially connected to the first locking plate. The first locking plate is rotatably connected to the door shell through the first graphite copper sleeve. The first locking link is radially distributed on the edge, and the other end of the link is hinged to the first locking block. The first locking block is slidably installed in the circumferential groove of the door shell through the first locking block support. The first locking plate is driven to rotate by the locking motor, so that the first locking block is inserted into or out of the locking groove.

[0066] The second locking motor is fixed to the second supporting plate, driving the second locking pinion to engage with the second locking gear. The second locking gear is coaxially connected to the second locking plate. The second locking plate is rotatably connected to the door shell through the second graphite copper sleeve. The edge of the second locking link is provided with a radially distributed second locking link. The other end of the link is hinged to the second locking block. The second locking block is slidably installed in the circumferential groove of the door shell through the second locking block support. The second locking plate is driven to rotate by the locking motor to insert or disengage the second locking block into the locking groove.

[0067] The third locking motor is fixed to the third supporting plate, driving the third locking pinion to engage the third locking gear, and the third locking gear is coaxially connected to the third locking plate, and the third locking plate is rotatably connected to the hatch shell through the third graphite copper sleeve, and the third locking link is radially distributed on the edge, and the other end of the link is hinged to the third locking block, and the third locking block is slidably installed in the circumferential groove of the hatch shell through the third locking block support, and the third locking plate is driven to rotate by the locking motor to insert or disengage the third locking block into or out of the locking groove;

[0068] The first clamping motor is fixed to the outside of the door housing via the first motor bracket, driving the first cam to rotate. The first cam pushes the first clamping rod to move axially. The other end of the first clamping rod abuts against the door sealing surface. A first support spring is provided between the first clamping rod and the door housing. One end of the first support spring is fixedly connected to the door housing, and the other end abuts against the bottom of the first clamping rod.

[0069] The second clamping motor is fixed to the outside of the door shell through the second motor bracket, driving the second cam to rotate, and the second cam pushes the second clamping rod to move axially, and the other end of the second clamping rod abuts against the door sealing surface. A second support spring is provided between the second clamping rod and the door shell, and one end of the second support spring is fixedly connected to the door shell, and the other end abuts against the bottom of the second clamping rod;

[0070] The third clamping motor is fixed to the outside of the door shell through the third motor bracket, driving the third cam to rotate, and the third cam pushes the third clamping rod to move axially, and the other end of the third clamping rod abuts against the door sealing surface, and a third support spring is provided between the third clamping rod and the door shell, one end of the third support spring is fixedly connected to the door shell, and the other end abuts against the bottom of the third clamping rod;

[0071] The first O-ring is embedded in the sealing groove of the connecting flange between the equipment compartment and the dry area compartment, and the first sealing bolt passes through the door shell and the flange, and the sealing ring is compressed by the bolt to seal;

[0072] The second O-ring is embedded in the sealing groove of the connecting flange between the equipment compartment and the dry area compartment, and the second sealing bolt passes through the door shell and the flange, and the sealing ring is compressed by the bolt to seal;

[0073] The third O-ring is embedded in the sealing groove of the connecting flange between the equipment cabin and the dry area compartment, and the third sealing bolt passes through the door shell and the flange, and the sealing ring is compressed by the bolt to seal.

[0074] Preferably,

[0075] Further including: equipment handling hatch;

[0076] Wherein, the equipment handling hatch is arranged at the end of the equipment cabin;

[0077] The equipment transport hatch is used for integrating, installing and debugging equipment in the equipment cabin, and for sealing the cabin body after debugging is completed.

[0078] Preferably,

[0079] The equipment handling hatch comprises: an equipment hatch shell, an equipment O-type sealing ring, and an equipment sealing bolt;

[0080] Wherein, the equipment cabin door shell is docked with the equipment cabin flange;

[0081] Equipment O-ring: embedded in the sealing groove between the equipment door shell and the equipment cabin;

[0082] Equipment sealing bolts: penetrate the equipment door shell and the equipment compartment flange and are sealed by bolts.

[0083] Preferably,

[0084] The equipment cabin is in the shape of a cylinder with uniform ribs on the outside.

[0085] In a second aspect, an embodiment of the present invention provides a method for controlling an underwater maintenance system of a submarine data center, the method comprising:

[0086] Using the processor to adjust the air pressure in the wet area compartment to be equal to the seawater pressure outside the cabin according to the pressure value detected by the wet area pressure sensor;

[0087] Opening the third sealed hatch, and the maintenance personnel entering the wet area compartment and then closing the hatch;

[0088] Using the processor to adjust the air pressure in the wet compartment to be the same as that in the dry compartment;

[0089] Opening the second sealed hatch, and the maintenance personnel entering the dry area compartment and then closing the hatch;

[0090] Using the processor, the air pressure in the dry area compartment is adjusted to be the same as that in the equipment compartment, and the maintenance personnel change into maintenance clothes;

[0091] The first sealed hatch is opened, and the maintenance personnel enter the equipment cabin and close the hatch.

[0092] Preferably,

[0093] When the wet zone compartment is provided with the aeration device and the water filling and drainage device, and the dry zone compartment is provided with the dry zone aeration device and the water evaporation device,

[0094] According to the pressure value detected by the wet area pressure sensor, the processor controls the wet area inflation device and the filling and drainage device so that the air pressure in the wet area compartment is the same as the seawater pressure outside the cabin;

[0095] Opening the third sealed hatch, and the maintenance personnel entering the wet area compartment and then closing the hatch;

[0096] Using the processor to control the wet area inflation device so that the air pressure in the wet area compartment is the same as that in the dry area compartment;

[0097] Opening the second sealed hatch, and the maintenance personnel entering the dry area compartment and then closing the hatch;

[0098] According to the pressure value detected by the dry area pressure sensor, the processor is used to control the dry area inflation device and the water evaporation device so that the air pressure in the dry area compartment is the same as that in the equipment compartment, and the maintenance personnel change into maintenance clothes;

[0099] The first sealed hatch is opened, and the maintenance personnel enter the equipment cabin and close the hatch.

[0100] An embodiment of the present invention provides an underwater maintenance system and control method for a submarine data center. A first sealed hatch separates the equipment compartment from the dry area; a second sealed hatch separates the dry area from the wet area; and a third sealed hatch separates the wet area from the seawater outside the compartment, forming a three-level spatial isolation structure from outside to inside. A dry area pressure sensor monitors the air pressure between the dry area and the equipment compartment in real time, while a wet area pressure sensor monitors the air pressure between the wet area and the seawater outside the compartment and synchronizes the data with a processor. When maintenance personnel need to enter the wet compartment, the processor adjusts the air pressure in the wet compartment to the same as the seawater pressure outside the cabin based on the data from the wet pressure sensor, ensuring safe entry and exit of personnel through the third sealed hatch. When personnel enter the dry compartment from the wet compartment, the processor adjusts the air pressure in the wet compartment to the same as the dry compartment based on the data from the dry pressure sensor, eliminating the pressure difference on both sides of the sealed hatch. Before the personnel finally enter the equipment compartment, the processor further adjusts the air pressure and humidity in the dry compartment to be completely consistent with the equipment compartment, forming a safe maintenance channel with a step-by-step transition of pressure and environmental parameters, avoiding the impact of external seawater pressure on the precision equipment in the equipment compartment, and ensuring the safety of personnel during underwater maintenance and the stability of equipment operation. Through the above process, there is no need to use special engineering vessels such as floating cranes and barges to lift the cabin out of the water for maintenance, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0101] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0102] Figure 1 This is a schematic diagram of an underwater maintenance system for a submarine data center provided by one embodiment of the present invention;

[0103] Figure 2 This is a schematic diagram of another underwater maintenance system for a submarine data center provided by one embodiment of the present invention;

[0104] Figure 3 This is a schematic diagram of another underwater maintenance system for a submarine data center provided by one embodiment of the present invention;

[0105] Figure 4 This is a schematic diagram of another underwater maintenance system for a submarine data center provided by one embodiment of the present invention;

[0106] Figure 5 This is a schematic diagram of an underwater maintenance system for a submarine data center provided by one embodiment of the present invention;

[0107] Figure 6 This is a schematic diagram of another underwater maintenance system for a submarine data center provided by one embodiment of the present invention;

[0108] Figure 7 This is a schematic diagram of another underwater maintenance system for a submarine data center provided by one embodiment of the present invention;

[0109] Figure 8 This is a schematic diagram of another underwater maintenance system for a submarine data center provided by one embodiment of the present invention;

[0110] Figure 9 The present invention provides a flow chart of a method for controlling an underwater maintenance system of a submarine data center according to an embodiment of the present invention. DETAILED DESCRIPTION

[0111] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0112] like Figure 1 As shown, an embodiment of the present invention provides an underwater maintenance system for a submarine data center, the system comprising:

[0113] Equipment cabin 101, dry area compartment 102, wet area compartment 103, processor 104, dry area pressure sensor 105, wet area pressure sensor 106, first sealed hatch 107, second sealed hatch 108, third sealed hatch 109;

[0114] The first sealed hatch 107 is provided between the equipment cabin 101 and the dry compartment 102, the second sealed hatch 108 is provided between the dry compartment 102 and the wet compartment 103, and the third sealed hatch 109 is provided between the wet compartment 103 and the seawater outside the cabin.

[0115] The dry area compartment 102 is connected to the equipment cabin 101 and the wet area compartment 103 respectively;

[0116] The dry area pressure sensor 105 is connected to the dry area compartment 102 and the equipment cabin 101 respectively;

[0117] The wet area pressure sensor 106 is connected to the wet area compartment 103 and the seawater outside the cabin respectively;

[0118] The equipment compartment 101 is used to integrate IT equipment, power equipment, refrigeration equipment, and intelligent equipment;

[0119] The dry area pressure sensor 105 is used to detect the air pressure values ​​of the dry area compartment 102 and the equipment compartment 101 and send the pressure values ​​to the processor 104;

[0120] The wet area pressure sensor 106 is used to detect the air pressure values ​​of the wet area compartment 103 and the seawater outside the cabin, and send the pressure values ​​to the processor 104;

[0121] The processor 104 is used to adjust the air pressure of the wet area compartment 103 to be the same as the seawater pressure outside the cabin based on the air pressure value detected by the wet area pressure sensor 106 when the maintenance personnel enters the wet area compartment 103; and to adjust the air pressure of the wet area compartment 103 to be the same as the air pressure of the dry area compartment 102 based on the air pressure value detected by the dry area pressure sensor 105 when the maintenance personnel enters the dry area compartment 102; and to adjust the air pressure and humidity of the dry area compartment 102 to be the same as those of the equipment compartment 101 when the maintenance personnel enters the equipment compartment.

[0122] In an embodiment of the present invention, an underwater maintenance system for a submarine data center is provided. A first sealed hatch separates the equipment compartment from the dry area; a second sealed hatch separates the dry area from the wet area; and a third sealed hatch separates the wet area from the seawater outside the compartment, forming a three-level spatial isolation structure from the outside to the inside. A dry area pressure sensor monitors the air pressure between the dry area and the equipment compartment in real time, while a wet area pressure sensor monitors the air pressure between the wet area and the seawater outside the compartment and synchronizes the data with a processor. When maintenance personnel need to enter the wet compartment, the processor adjusts the air pressure in the wet compartment to the same as the seawater pressure outside the cabin based on the data from the wet pressure sensor, ensuring safe entry and exit of personnel through the third sealed hatch. When personnel enter the dry compartment from the wet compartment, the processor adjusts the air pressure in the wet compartment to the same as the dry compartment based on the data from the dry pressure sensor, eliminating the pressure difference on both sides of the sealed hatch. Before the personnel finally enter the equipment compartment, the processor further adjusts the air pressure and humidity in the dry compartment to be completely consistent with the equipment compartment, forming a safe maintenance channel with a step-by-step transition of pressure and environmental parameters, avoiding the impact of external seawater pressure on the precision equipment in the equipment compartment, and ensuring the safety of personnel during underwater maintenance and the stability of equipment operation. Through the above process, there is no need to use special engineering vessels such as floating cranes and barges to lift the cabin out of the water for maintenance, thereby improving maintenance efficiency.

[0123] Please refer to Figure 1 、 Figure 2 , the dry area compartment 102 is provided with a dry area aeration device 110 and a water evaporation device 111;

[0124] The dry area aeration device 110 and the water evaporation device 111 are respectively connected to the processor 104;

[0125] The dry area inflating device 110 is used to adjust the air pressure in the dry area compartment 102;

[0126] The water evaporation device 111 is used to adjust the humidity in the dry area compartment 102;

[0127] The dry area inflation device 110 includes: a dry area reversing valve group, a dry area motor, a dry area air pump, a dry area overflow valve, and a dry area gas storage cylinder;

[0128] The dry area reversing valve group is used to control the flow direction of the gas;

[0129] The dry area motor is used to drive the dry area air pump to operate;

[0130] The dry area air pump is used to fill and discharge gas into the dry area compartment to adjust the air pressure;

[0131] The dry area overflow valve is used to prevent the air pressure in the dry area compartment from exceeding a safety threshold;

[0132] The dry area gas storage cylinder is used to adjust the humidity in the dry area compartment;

[0133] The first end of the dry area reversing valve group is connected to the dry area gas cylinder, and the second end is connected to the dry area compartment;

[0134] The first end of the dry area air pump is connected to the dry area motor, and the second end is connected to the dry area reversing valve group;

[0135] A first end of the dry area overflow valve is connected to the dry area air pump, and a second end is connected to the dry area compartment.

[0136] In an embodiment of the present invention, the dry zone aeration device and moisture evaporation device in the dry zone compartment are both controlled by a processor to precisely regulate the air pressure and humidity in that area. A dry zone motor drives the dry zone air pump, which controls the flow of gas through a dry zone reversing valve assembly, filling or discharging gas into or out of the dry zone compartment, thereby regulating the air pressure. A dry zone overflow valve is connected in series between the air pump and the compartment, automatically releasing pressure when the air pressure exceeds a safety threshold to prevent excessive pressure. The dry zone gas cylinder assists in regulating humidity by storing or releasing gas. It is connected to the dry zone compartment via a reversing valve assembly and can release dry gas or absorb moisture according to processor instructions. The moisture evaporation device is connected to the processor and reduces the humidity in the dry zone compartment through evaporation, ensuring a dry environment. The coordinated operation of the entire system's components allows the dry zone compartment to quickly match the air pressure and humidity parameters of adjacent areas during the transition from the wet zone to the equipment compartment, creating a safe environmental gradient. This prevents damage to the precision equipment in the equipment compartment due to sudden changes in humidity or air pressure, thereby ensuring the reliability of underwater maintenance.

[0137] Please refer to Figure 3 、 Figure 4 、 Figure 5 , the wet area compartment 103 in the above embodiment is provided with a wet area aeration device 112 and a filling and drainage device 113;

[0138] Wherein, the wet area inflation device is used to adjust the air pressure in the wet area compartment;

[0139] The filling and drainage device is used to control the filling and drainage process of the wet area compartment to adjust the air pressure of the wet area compartment.

[0140] The wet area inflation device includes: a wet area reversing valve group, a wet area motor, a wet area air pump, a wet area overflow valve, and a wet area gas storage cylinder;

[0141] The filling and drainage device includes: a filling and drainage reversing valve group, a filling and drainage motor, a filling and drainage hydraulic pump, and a filling and drainage overflow valve;

[0142] The wet area reversing valve group is used to control the flow direction of the gas;

[0143] The wet area motor is used to drive the wet area air pump to operate;

[0144] The wet area air pump is used to fill and discharge compressed gas into the wet area compartment;

[0145] The wet area overflow valve is used to limit the peak pressure;

[0146] The wet area gas storage cylinder is used to store the compressed gas;

[0147] The filling and drainage reversing valve group is used to switch between the filling and drainage modes;

[0148] The charging and draining motor is used to drive the charging and draining hydraulic pump;

[0149] The filling and drainage hydraulic pump is used to perform seawater injection and discharge operations;

[0150] The filling and draining overflow valve is used to prevent the hydraulic system from overloading;

[0151] The first end of the wet area reversing valve group is connected to the wet area gas cylinder, and the second end is connected to the wet area compartment;

[0152] The first end of the wet area air pump is connected to the wet area motor, and the second end is connected to the wet area reversing valve group;

[0153] The first end of the wet area overflow valve is connected to the wet area air pump, and the second end is connected to the wet area compartment;

[0154] The first end of the filling and drainage reversing valve group is connected to the wet area compartment, and the second end is connected to seawater;

[0155] The first end of the charging and draining hydraulic pump is connected to the charging and draining motor, and the second end is connected to the charging and draining reversing valve group;

[0156] A first end of the filling and draining overflow valve is connected to the hydraulic pump, and a second end thereof is connected to the wet area compartment.

[0157] In an embodiment of the present invention, the motor-driven air pump of the wet zone inflation device inflates and exhausts compressed gas, a reversing valve group controls the direction of airflow, a relief valve limits peak air pressure, and a gas cylinder stores gas for backup. The reversing valve group of the filling and drainage device switches between water filling and drainage modes, a motor-driven hydraulic pump performs seawater injection and discharge operations, and a relief valve prevents hydraulic system overload. Through the above-mentioned device, the wet zone compartments achieve air pressure control through the dual mechanisms of gas filling and exhausting and seawater inlet and outlet. This ensures that when maintenance personnel transition between different compartments, the air pressure in each area gradually matches the external environment or the parameters of adjacent areas, forming a safe underwater maintenance environment gradient and preventing sudden pressure changes from causing damage to personnel and equipment.

[0158] In one embodiment of the present invention, the first sealed hatch in the above embodiment includes: a first hatch shell, a first opening and closing mechanism, a first locking mechanism, a first pressing mechanism, and a first sealing structure; the second sealed hatch includes: a second hatch shell, a second opening and closing mechanism, a second locking mechanism, a second pressing mechanism, and a second sealing structure;

[0159] The third sealed hatch includes: a third hatch shell, a third opening and closing mechanism, a third locking mechanism, a third pressing mechanism, and a third sealing structure.

[0160] In an embodiment of the present invention, the first to third sealed hatches all adopt a modular sealing structure design to ensure the airtightness and operational safety of each compartment. Among them, the first sealed hatch is arranged between the equipment compartment and the dry area compartment, and is composed of a first hatch shell, an opening and closing mechanism, a locking mechanism, a pressing mechanism and a sealing structure: the shell serves as a supporting frame, the opening and closing mechanism realizes the opening and closing of the hatch, the locking mechanism fixes the hatch position through a mechanical structure, and the pressing mechanism applies pressure to the hatch when closing, and cooperates with the sealing structure to form a reliable sealing interface to prevent the dry environment in the equipment compartment from communicating with the gas environment in the dry area compartment. The second sealed hatch is located between the dry area compartment and the wet area compartment. The functions of its second hatch shell, opening and closing mechanism, locking mechanism, pressing mechanism and sealing structure are similar to those of the first sealed hatch, and are mainly used to isolate the air pressure environment of the dry area from the air and water environment of the wet area, ensuring the effectiveness of air pressure regulation when personnel transition between dry and wet areas. The third sealed hatch is set between the wet area compartment and the seawater outside the cabin. The shell of the third hatch needs to withstand the external seawater pressure. The opening and closing mechanism design needs to take into account both pressure resistance and operational convenience. The locking mechanism and the clamping mechanism ensure the sealing of the hatch when closed through the enhanced mechanical structure. The third sealing structure uses high-pressure resistant materials and cooperates with the pressure sensor data to achieve safe opening and closing when the air pressure of the wet area compartment and the seawater pressure outside the cabin are balanced under the control of the processor, avoiding seawater backflow or pressure shock, and providing reliable physical isolation and pressure transition barriers for maintenance personnel entering and exiting the submarine data center.

[0161] Please refer to Figure 6 、 Figure 7 , the first locking mechanism in the above embodiment includes: a first locking gear, a first locking pinion, a first support plate, a first locking motor, a first locking block, a first locking connecting rod, a first graphite copper sleeve, a first locking plate, and a first locking block support;

[0162] The second locking mechanism includes: a second locking gear, a second locking pinion, a second support plate, a second locking motor, a second locking block, a second locking connecting rod, a second graphite copper sleeve, a second locking plate, and a second locking block support;

[0163] The third locking mechanism includes: a third locking gear, a third locking pinion, a second support plate, a third locking motor, a third locking block, a third locking connecting rod, a third graphite copper sleeve, a third locking plate, and a third locking block support;

[0164] The first pressing mechanism includes: a first pressing motor, a first pressing rod, a first motor bracket, a first cam, and a first support spring;

[0165] The second pressing mechanism includes: a second pressing motor, a second pressing rod, a second motor bracket, a second cam, and a second support spring;

[0166] The third pressing mechanism includes: a third pressing motor, a third pressing rod, a third motor bracket, a third cam, and a third support spring;

[0167] The first sealing structure includes: a first door shell, a first O-ring, and a first sealing bolt;

[0168] The second sealing structure includes: a second door shell, a second O-ring, and a second sealing bolt;

[0169] The third sealing structure includes: a third door shell, a third O-ring, and a third sealing bolt;

[0170] The first locking motor is fixed to the first supporting plate, driving the first locking pinion to engage with the first locking gear. The first locking gear is coaxially connected to the first locking plate. The first locking plate is rotatably connected to the door shell through the first graphite copper sleeve. The first locking link is radially distributed on the edge, and the other end of the link is hinged to the first locking block. The first locking block is slidably installed in the circumferential groove of the door shell through the first locking block support. The first locking plate is driven to rotate by the locking motor, so that the first locking block is inserted into or out of the locking groove.

[0171] The second locking motor is fixed to the second supporting plate, driving the second locking pinion to engage with the second locking gear. The second locking gear is coaxially connected to the second locking plate. The second locking plate is rotatably connected to the door shell through the second graphite copper sleeve. The edge of the second locking link is provided with a radially distributed second locking link. The other end of the link is hinged to the second locking block. The second locking block is slidably installed in the circumferential groove of the door shell through the second locking block support. The second locking plate is driven to rotate by the locking motor to insert or disengage the second locking block into the locking groove.

[0172] The third locking motor is fixed to the third supporting plate, driving the third locking pinion to engage the third locking gear, and the third locking gear is coaxially connected to the third locking plate, and the third locking plate is rotatably connected to the hatch shell through the third graphite copper sleeve, and the third locking link is radially distributed on the edge, and the other end of the link is hinged to the third locking block, and the third locking block is slidably installed in the circumferential groove of the hatch shell through the third locking block support, and the third locking plate is driven to rotate by the locking motor to insert or disengage the third locking block into or out of the locking groove;

[0173] The first clamping motor is fixed to the outside of the door housing via the first motor bracket, driving the first cam to rotate. The first cam pushes the first clamping rod to move axially. The other end of the first clamping rod abuts against the door sealing surface. A first support spring is provided between the first clamping rod and the door housing. One end of the first support spring is fixedly connected to the door housing, and the other end abuts against the bottom of the first clamping rod.

[0174] The second clamping motor is fixed to the outside of the door housing via the second motor bracket, driving the second cam to rotate. The second cam pushes the cam connecting rod to move axially. The other end of the cam connecting rod abuts against the door sealing surface. A second support spring is provided between the second clamping rod and the door housing. One end of the second support spring is fixedly connected to the door housing, and the other end abuts against the bottom of the second clamping rod.

[0175] The third clamping motor is fixed to the outside of the door shell through the third motor bracket, driving the third cam to rotate, and the third cam pushes the third clamping rod to move axially, and the other end of the third clamping rod abuts against the door sealing surface, and a third support spring is provided between the third clamping rod and the door shell, one end of the third support spring is fixedly connected to the door shell, and the other end abuts against the bottom of the third clamping rod;

[0176] The first O-ring is embedded in the sealing groove of the connecting flange between the equipment compartment and the dry area compartment, and the first sealing bolt passes through the door shell and the flange, and the sealing ring is compressed by the bolt to seal;

[0177] The second O-ring is embedded in the sealing groove of the connecting flange between the equipment compartment and the dry area compartment, and the second sealing bolt passes through the door shell and the flange, and the sealing ring is compressed by the bolt to seal;

[0178] The third O-ring is embedded in the sealing groove of the connecting flange between the equipment cabin and the dry area compartment, and the third sealing bolt passes through the door shell and the flange, and the sealing ring is compressed by the bolt to seal.

[0179] In an embodiment of the present invention, the locking, pressing and sealing structures of the first to third sealed hatches achieve high-reliability sealing through precise mechanical design. In terms of the locking mechanism, each hatch adopts a gear transmission + connecting rod structure to achieve mechanical locking of the hatch. In terms of the pressing mechanism, a motor-driven cam is used to form a uniform pressing force. In terms of the sealing structure, a sealing interface is formed between the equipment cabin and the dry area compartment, the dry area and the wet area compartment, and the wet area and the seawater outside the cabin based on the combination of O-rings and bolts, ensuring that each compartment is leak-free during the pressure regulation process, providing a safe and reliable physical isolation barrier for underwater maintenance.

[0180] Please refer to Figure 8 , further comprising: equipment handling hatch;

[0181] Wherein, the equipment handling hatch is arranged at the end of the equipment cabin;

[0182] The equipment transport hatch is used for integrating, installing and debugging equipment in the equipment cabin, and for sealing the cabin body after debugging is completed.

[0183] In an embodiment of the present invention, the equipment handling hatch is designed specifically for equipment integration, installation, and commissioning. This hatch remains open during the equipment installation phase within the equipment compartment, facilitating the hoisting, wiring, and commissioning of IT equipment, power equipment, refrigeration equipment, and intelligent devices. This facilitates the convenient access and system integration of modular equipment. After equipment commissioning is complete, the hatch reliably seals the compartment through a sealing mechanism, ensuring a complete, airtight space within the equipment compartment. Together with the dry and wet compartments, this hatch forms a pressure-controlled underwater maintenance environment, meeting the functional requirements of equipment installation while ensuring the sealing and safety of the data center during operation, enabling full-cycle management of the equipment maintenance process.

[0184] In one embodiment of the present invention, the equipment transport hatch in the above embodiment includes: an equipment hatch housing, an equipment O-ring, and an equipment sealing bolt;

[0185] Wherein, the equipment cabin door shell is docked with the equipment cabin flange;

[0186] Equipment O-ring: embedded in the sealing groove between the equipment door shell and the equipment cabin;

[0187] Equipment sealing bolts: penetrate the equipment door shell and the equipment compartment flange and are sealed by bolts.

[0188] In an embodiment of the present invention, the equipment handling hatch comprises an equipment hatch housing, an equipment O-ring, and equipment sealing bolts. The equipment hatch housing is mated with the equipment compartment flange to form an installation interface. The equipment O-ring is embedded in a sealing groove between the housing and the equipment compartment, utilizing its elastic material properties to fill the gap between the joint. The equipment sealing bolts penetrate the hatch housing and the equipment compartment flange. The preload generated by tightening the bolts compresses the sealing ring, causing it to elastically deform and tightly adhere to the sealing surface, thereby forming a reliable sealing interface between the equipment hatch and the equipment compartment. This structure remains open during the equipment installation phase, facilitating the lifting, wiring, and system commissioning of large components such as IT equipment and power equipment. After equipment commissioning is complete, the sealing ring is tightened with bolts to seal the hatch, ensuring an independent, airtight space within the equipment compartment. This seal, in conjunction with the pressure regulation systems of the dry and wet compartments, not only meets the functional requirements of equipment handling and installation, but also ensures the sealing and environmental stability of the submarine data center during underwater operation, preventing external seawater infiltration from impacting equipment safety.

[0189] In one embodiment of the present invention, the equipment cabin in the above embodiment is in the shape of a cylinder with uniform ribs on the outside.

[0190] In an embodiment of the present invention, the equipment cabin is designed to be a cylindrical structure with uniform ribs on the outside. This design combines mechanical stability with functional advantages. The cylindrical structure can evenly disperse the pressure of the external seawater, avoid stress concentration, and enhance the equipment cabin's ability to withstand high pressure in deep-sea high-pressure environments. The cylindrical cabin has a regular internal space, which facilitates the compact layout and integrated installation of modular components such as IT equipment, power equipment, and refrigeration equipment. Combined with the design of the equipment handling hatch, the orderly lifting and commissioning of the equipment can be achieved. The external ribbed structure does not affect the sealed connection between the cabin and components such as the dry area compartment and the equipment handling hatch, ensuring that the overall structure maintains good airtightness and environmental isolation while meeting the mechanical properties, meeting the needs of long-term stable operation of submarine data centers.

[0191] like Figure 9 To more clearly illustrate the technical solutions and advantages of the present invention, a method for controlling an underwater maintenance system of a submarine data center is provided below according to an embodiment of the present invention. The method includes:

[0192] Step 201: Using a processor to adjust the air pressure in the wet area compartment to be the same as the seawater pressure outside the cabin according to the pressure value detected by the wet area pressure sensor;

[0193] Step 202: Open the third sealed hatch, and the maintenance personnel enter the wet area compartment and close the hatch;

[0194] Step 203: Using a processor to adjust the air pressure in the wet area compartment to be the same as that in the dry area compartment;

[0195] Step 204: Open the second sealed hatch, and the maintenance personnel enter the dry area compartment and close the hatch;

[0196] Step 205: Using the processor, adjust the air pressure in the dry area compartment to be the same as that in the equipment compartment, and the maintenance personnel change into maintenance clothes;

[0197] Step 206: Open the first sealed hatch, and the maintenance personnel enter the equipment cabin and close the hatch.

[0198] It should be understood that the structure illustrated in the embodiments of the present invention does not constitute a specific limitation on a subsea data center underwater maintenance system. In other embodiments of the present invention, a subsea data center underwater maintenance system may include more or fewer components than illustrated, or may combine or separate certain components, or employ different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of both.

[0199] The information interaction, execution process, etc. between the units in the above-mentioned device are based on the same concept as the embodiment of the method of the present invention. For specific contents, please refer to the description in the embodiment of the method of the present invention and will not be repeated here.

[0200] An embodiment of the present invention further provides an underwater maintenance system for a submarine data center, comprising: at least one memory and at least one processor;

[0201] at least one memory for storing a machine-readable program;

[0202] At least one processor is configured to call a machine-readable program to execute a control method for an underwater maintenance system of a submarine data center according to any embodiment of the present invention.

[0203] An embodiment of the present invention further provides a computer-readable medium having computer instructions stored thereon. When the computer instructions are executed by a processor, the processor executes a method for controlling an underwater maintenance system of a submarine data center according to any embodiment of the present invention.

[0204] Specifically, a system or device equipped with a storage medium can be provided, on which software program codes that implement the functions of any of the above-mentioned embodiments are stored, and a computer (or CPU or MPU) of the system or device can be enabled to read and execute the program codes stored in the storage medium.

[0205] In this case, the program code itself read from the storage medium can realize the function of any one of the above-mentioned embodiments, and thus the program code and the storage medium storing the program code constitute part of the present invention.

[0206] Examples of storage media for providing program code include floppy disks, hard disks, magneto-optical disks, optical disks (such as CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), magnetic tapes, non-volatile memory cards, and ROMs. Alternatively, the program code can be downloaded from a server computer via a communication network.

[0207] In addition, it should be clear that the functions of any of the above embodiments can be achieved not only by executing the program code read by the computer, but also by enabling the operating system operating on the computer to complete part or all of the actual operations based on the instructions of the program code.

[0208] In addition, it can be understood that the program code read from the storage medium is written into the memory provided in the expansion board inserted into the computer or into the memory provided in the expansion unit connected to the computer, and then based on the instructions of the program code, the CPU installed on the expansion board or expansion unit is enabled to perform part or all of the actual operations, thereby realizing the functions of any of the above embodiments.

[0209] Each embodiment of the present invention has at least the following beneficial effects:

[0210] 1. In one embodiment of the present invention, an underwater maintenance system for a submarine data center is provided. A first sealed hatch separates the equipment compartment from the dry area; a second sealed hatch separates the dry area from the wet area; and a third sealed hatch separates the wet area from the seawater outside the compartment, forming a three-level spatial isolation structure from the outside to the inside. A dry area pressure sensor monitors the air pressure between the dry area and the equipment compartment in real time, while a wet area pressure sensor monitors the air pressure between the wet area and the seawater outside the compartment and synchronizes the data with a processor. When maintenance personnel need to enter the wet compartment, the processor adjusts the air pressure in the wet compartment to the same as the seawater pressure outside the cabin based on the data from the wet pressure sensor, ensuring the safe entry and exit of personnel through the third sealed hatch. When personnel enter the dry compartment from the wet compartment, the processor adjusts the air pressure in the wet compartment to the same as the dry compartment based on the data from the dry pressure sensor, eliminating the pressure difference on both sides of the sealed hatch. Before the personnel finally enter the equipment cabin, the processor further adjusts the air pressure and humidity in the dry compartment to be completely consistent with the equipment cabin, forming a safe maintenance channel with a step-by-step transition of pressure and environmental parameters, avoiding the impact of external seawater pressure on the precision equipment in the equipment cabin, and ensuring the safety of the personnel's underwater maintenance process and the stability of the equipment operation. Through the above process, there is no need to use special engineering vessels such as floating cranes and barges to lift the cabin out of the water for maintenance, thereby improving maintenance efficiency.

[0211] 2. In an embodiment of the present invention, the dry zone aeration device and moisture evaporation device configured in the dry zone compartment are both controlled by a processor to achieve precise regulation of the air pressure and humidity in the area. The dry zone motor drives the dry zone air pump, which controls the flow of gas through the dry zone reversing valve group, filling or exhausting gas into the dry zone compartment, thereby regulating the air pressure. The dry zone overflow valve is connected in series between the air pump and the compartment. It automatically relieves pressure when the air pressure exceeds a safety threshold to prevent excessive pressure. The dry zone gas cylinder assists in regulating humidity by storing or releasing gas. It is connected to the dry zone compartment through the reversing valve group and can release dry gas or absorb moisture according to the processor's instructions. The moisture evaporation device is connected to the processor and reduces the humidity in the dry zone compartment through evaporation, ensuring that the area maintains a dry environment. Through the coordinated operation of various components of the entire system, the dry zone compartment can quickly match the air pressure and humidity parameters of adjacent areas during the transition of maintenance personnel from the wet zone to the equipment compartment, forming a safe environmental gradient. This prevents damage to the precision equipment in the equipment compartment due to sudden changes in humidity or air pressure, thereby ensuring the reliability of underwater maintenance.

[0212] 3. In an embodiment of the present invention, the motor-driven air pump of the wet zone aeration system inflates and exhausts compressed gas, a reversing valve group controls the direction of airflow, a relief valve limits peak pressure, and a gas cylinder stores gas for backup. The reversing valve group of the filling and drainage system switches between water filling and drainage modes, a motor-driven hydraulic pump performs seawater injection and discharge operations, and a relief valve prevents hydraulic system overload. Through this device, the wet zone compartments achieve pressure control through a dual mechanism of gas filling and exhausting, as well as seawater inlet and outlet. This ensures that when maintenance personnel transition between compartments, the air pressure in each area gradually matches the external environment or the parameters of adjacent areas, forming a safe underwater maintenance environment gradient and preventing sudden pressure changes from causing damage to personnel and equipment.

[0213] It should be noted that not all steps and modules in the above processes and system structure diagrams are required, and certain steps or modules can be omitted according to actual needs. The execution order of each step is not fixed and can be adjusted as needed. The system structure described in the above embodiments can be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities, or may be implemented by certain components in multiple independent devices.

[0214] In the above embodiments, the hardware unit can be realized by mechanical means or electrical means. For example, a hardware unit can include permanent dedicated circuits or logic (such as special processors, FPGA or ASIC) to complete the corresponding operations. The hardware unit can also include programmable logic or circuits (such as general-purpose processors or other programmable processors), which can be temporarily set up by software to complete the corresponding operations. Concrete implementation (mechanical means or dedicated permanent circuits or temporarily set circuits) can be determined based on the consideration on cost and time.

[0215] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. The underwater maintenance system of submarine data center is characterized by: The system includes: Equipment cabin, dry area compartment, wet area compartment, processor, dry area pressure sensor, wet area pressure sensor, first sealed cabin door, second sealed cabin door, third sealed cabin door; The first sealed hatch is provided between the equipment compartment and the dry compartment, the second sealed hatch is provided between the dry compartment and the wet compartment, and the third sealed hatch is provided between the wet compartment and the seawater outside the compartment. The dry area compartment is connected to the equipment cabin and the wet area compartment respectively; The dry area pressure sensor is connected to the dry area compartment and the equipment cabin respectively; The wet area pressure sensor is connected to the wet area compartment and the seawater outside the cabin respectively; The equipment compartment is used to integrate IT equipment, power equipment, refrigeration equipment, and intelligent equipment; The dry area pressure sensor is used to detect the air pressure values ​​of the dry area compartment and the equipment cabin and send them to the processor; The wet area pressure sensor is used to detect the air pressure values ​​of the wet area compartment and the seawater outside the cabin, and send the pressure values ​​to the processor; The processor is used to adjust the air pressure of the wet area compartment to be the same as the seawater pressure outside the cabin based on the air pressure value detected by the wet area pressure sensor when the maintenance personnel enters the wet area compartment; adjust the air pressure of the wet area compartment to be the same as the air pressure of the dry area compartment based on the air pressure value detected by the dry area pressure sensor when the maintenance personnel enters the dry area compartment; and adjust the air pressure and humidity of the dry area compartment to be the same as those of the equipment compartment when the maintenance personnel enters the equipment compartment.

2. The system according to claim 1, wherein: The dry area compartment is provided with a dry area aeration device and a water evaporation device; Wherein, the dry area aeration device and the water evaporation device are respectively connected to the processor; The dry area inflation device is used to adjust the air pressure in the dry area compartment; The water evaporation device is used to adjust the humidity in the dry zone compartment; The dry area inflation device includes: a dry area reversing valve group, a dry area motor, a dry area air pump, a dry area overflow valve, and a dry area gas storage cylinder; The dry area reversing valve group is used to control the flow direction of the gas; The dry area motor is used to drive the dry area air pump to operate; The dry area air pump is used to fill and discharge gas into the dry area compartment to adjust the air pressure; The dry area overflow valve is used to prevent the air pressure in the dry area compartment from exceeding a safety threshold; The dry area gas storage cylinder is used to adjust the humidity in the dry area compartment; The first end of the dry area reversing valve group is connected to the dry area gas cylinder, and the second end is connected to the dry area compartment; The first end of the dry area air pump is connected to the dry area motor, and the second end is connected to the dry area reversing valve group; A first end of the dry area overflow valve is connected to the dry area air pump, and a second end is connected to the dry area compartment.

3. The system according to claim 1, wherein: The wet area compartment is provided with a wet area aeration device and a water filling and drainage device; Wherein, the wet area inflation device is used to adjust the air pressure in the wet area compartment; The filling and drainage device is used to control the filling and drainage process of the wet area compartment to adjust the air pressure of the wet area compartment. The wet area inflation device includes: a wet area reversing valve group, a wet area motor, a wet area air pump, a wet area overflow valve, and a wet area gas storage cylinder; The filling and drainage device includes: a filling and drainage reversing valve group, a filling and drainage motor, a filling and drainage hydraulic pump, and a filling and drainage overflow valve; The wet area reversing valve group is used to control the flow direction of the gas; The wet area motor is used to drive the wet area air pump to operate; The wet area air pump is used to fill and discharge compressed gas into the wet area compartment; The wet area overflow valve is used to limit the peak pressure; The wet area gas storage cylinder is used to store the compressed gas; The filling and drainage reversing valve group is used to switch between the filling and drainage modes; The charging and draining motor is used to drive the charging and draining hydraulic pump; The filling and drainage hydraulic pump is used to perform seawater injection and discharge operations; The filling and draining overflow valve is used to prevent the hydraulic system from overloading; The first end of the wet area reversing valve group is connected to the wet area gas cylinder, and the second end is connected to the wet area compartment; The first end of the wet area air pump is connected to the wet area motor, and the second end is connected to the wet area reversing valve group; The first end of the wet area overflow valve is connected to the wet area air pump, and the second end is connected to the wet area compartment; The first end of the filling and drainage reversing valve group is connected to the wet area compartment, and the second end is connected to seawater; The first end of the charging and draining hydraulic pump is connected to the charging and draining motor, and the second end is connected to the charging and draining reversing valve group; A first end of the filling and draining overflow valve is connected to the hydraulic pump, and a second end thereof is connected to the wet area compartment.

4. The system according to claim 1, wherein: The first sealed hatch comprises: a first hatch shell, a first opening and closing mechanism, a first locking mechanism, a first pressing mechanism, and a first sealing structure; The second sealed hatch includes: a second hatch shell, a second opening and closing mechanism, a second locking mechanism, a second pressing mechanism, and a second sealing structure; The third sealed hatch includes: a third hatch shell, a third opening and closing mechanism, a third locking mechanism, a third pressing mechanism, and a third sealing structure.

5. The system according to claim 4, characterized in that The first locking mechanism includes: a first locking gear, a first locking pinion, a first support plate, a first locking motor, a first locking block, a first locking connecting rod, a first graphite copper sleeve, a first locking plate, and a first locking block support; The second locking mechanism includes: a second locking gear, a second locking pinion, a second support plate, a second locking motor, a second locking block, a second locking connecting rod, a second graphite copper sleeve, a second locking plate, and a second locking block support; The third locking mechanism includes: a third locking gear, a third locking pinion, a second support plate, a third locking motor, a third locking block, a third locking connecting rod, a third graphite copper sleeve, a third locking plate, and a third locking block support; The first pressing mechanism includes: a first pressing motor, a first pressing rod, a first motor bracket, a first cam, and a first support spring; The second pressing mechanism includes: a second pressing motor, a second pressing rod, a second motor bracket, a second cam, and a second support spring; The third pressing mechanism includes: a third pressing motor, a third pressing rod, a third motor bracket, a third cam, and a third support spring; The first sealing structure includes: a first door shell, a first O-ring, and a first sealing bolt; The second sealing structure includes: a second door shell, a second O-ring, and a second sealing bolt; The third sealing structure includes: a third door shell, a third O-ring, and a third sealing bolt; The first locking motor is fixed to the first supporting plate, driving the first locking pinion to engage with the first locking gear. The first locking gear is coaxially connected to the first locking plate. The first locking plate is rotatably connected to the door shell through the first graphite copper sleeve. The first locking link is radially distributed on the edge, and the other end of the link is hinged to the first locking block. The first locking block is slidably installed in the circumferential groove of the door shell through the first locking block support. The first locking plate is driven to rotate by the locking motor, so that the first locking block is inserted into or out of the locking groove. The second locking motor is fixed to the second supporting plate, driving the second locking pinion to engage with the second locking gear. The second locking gear is coaxially connected to the second locking plate. The second locking plate is rotatably connected to the door shell through the second graphite copper sleeve. The edge of the second locking link is provided with a radially distributed second locking link. The other end of the link is hinged to the second locking block. The second locking block is slidably installed in the circumferential groove of the door shell through the second locking block support. The second locking plate is driven to rotate by the locking motor to insert or disengage the second locking block into the locking groove. The third locking motor is fixed to the third supporting plate, driving the third locking pinion to engage the third locking gear, and the third locking gear is coaxially connected to the third locking plate, and the third locking plate is rotatably connected to the hatch shell through the third graphite copper sleeve, and the third locking link is radially distributed on the edge, and the other end of the link is hinged to the third locking block, and the third locking block is slidably installed in the circumferential groove of the hatch shell through the third locking block support, and the third locking plate is driven to rotate by the locking motor to insert or disengage the third locking block into or out of the locking groove; The first clamping motor is fixed to the outside of the door housing via the first motor bracket, driving the first cam to rotate. The first cam pushes the first clamping rod to move axially. The other end of the first clamping rod abuts against the door sealing surface. A first support spring is provided between the first clamping rod and the door housing. One end of the first support spring is fixedly connected to the door housing, and the other end abuts against the bottom of the first clamping rod. The second clamping motor is fixed to the outside of the door shell through the second motor bracket, driving the second cam to rotate, and the second cam pushes the second clamping rod to move axially, and the other end of the second clamping rod abuts against the door sealing surface. A second support spring is provided between the second clamping rod and the door shell, and one end of the second support spring is fixedly connected to the door shell, and the other end abuts against the bottom of the second clamping rod; The third clamping motor is fixed to the outside of the door shell through the third motor bracket, driving the third cam to rotate, and the third cam pushes the third clamping rod to move axially, and the other end of the third clamping rod abuts against the door sealing surface, and a third support spring is provided between the third clamping rod and the door shell, one end of the third support spring is fixedly connected to the door shell, and the other end abuts against the bottom of the third clamping rod; The first O-ring is embedded in the sealing groove of the connecting flange between the equipment compartment and the dry area compartment, and the first sealing bolt passes through the door shell and the flange, and the sealing ring is compressed by the bolt to seal; The second O-ring is embedded in the sealing groove of the connecting flange between the equipment compartment and the dry area compartment, and the second sealing bolt passes through the door shell and the flange, and the sealing ring is compressed by the bolt to seal; The third O-ring is embedded in the sealing groove of the connecting flange between the equipment cabin and the dry area compartment, and the third sealing bolt passes through the door shell and the flange, and the sealing ring is compressed by the bolt to seal.

6. The system according to claim 1, wherein: Further including: equipment handling hatch; Wherein, the equipment handling hatch is arranged at the end of the equipment cabin; The equipment transport hatch is used for integrating, installing and debugging equipment in the equipment cabin, and for sealing the cabin body after debugging is completed.

7. The system according to claim 6, characterized in that The equipment handling hatch comprises: an equipment hatch shell, an equipment O-type sealing ring, and an equipment sealing bolt; Wherein, the equipment cabin door shell is docked with the equipment cabin flange; Equipment O-ring: embedded in the sealing groove between the equipment door shell and the equipment cabin; Equipment sealing bolts: penetrate the equipment door shell and the equipment compartment flange and are sealed by bolts.

8. The system according to claim 7, characterized in that The equipment cabin is in the shape of a cylinder with uniform ribs on the outside.

9. The method for controlling the underwater maintenance system of a submarine data center according to any one of claims 1 to 8, characterized in that: The method includes: Using the processor to adjust the air pressure in the wet area compartment to be equal to the seawater pressure outside the cabin according to the pressure value detected by the wet area pressure sensor; Opening the third sealed hatch, and the maintenance personnel entering the wet area compartment and then closing the hatch; Using the processor to adjust the air pressure in the wet compartment to be the same as that in the dry compartment; Opening the second sealed hatch, and the maintenance personnel entering the dry area compartment and then closing the hatch; Using the processor, the air pressure in the dry area compartment is adjusted to be the same as that in the equipment compartment, and the maintenance personnel change into maintenance clothes; The first sealed hatch is opened, and the maintenance personnel enter the equipment cabin and close the hatch.

10. The method according to claim 9, characterized in that When the wet zone compartment is provided with the aeration device and the water filling and drainage device, and the dry zone compartment is provided with the dry zone aeration device and the water evaporation device, According to the pressure value detected by the wet area pressure sensor, the processor controls the wet area inflation device and the filling and drainage device so that the air pressure in the wet area compartment is the same as the seawater pressure outside the cabin; Opening the third sealed hatch, and the maintenance personnel entering the wet area compartment and then closing the hatch; Using the processor to control the wet area inflation device so that the air pressure in the wet area compartment is the same as that in the dry area compartment; Opening the second sealed hatch, and the maintenance personnel entering the dry area compartment and then closing the hatch; According to the pressure value detected by the dry area pressure sensor, the processor is used to control the dry area inflation device and the water evaporation device so that the air pressure in the dry area compartment is the same as that in the equipment compartment, and the maintenance personnel change into maintenance clothes; The first sealed hatch is opened, and the maintenance personnel enter the equipment cabin and close the hatch.

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