An underwater data center cooling system and operation method thereof

Abstract

The present invention relates to the technical field of underwater data center cooling systems, and in particular to an underwater data center cooling system and an operating method thereof. The underwater data center cooling system includes a first pump module, a second pump module and a condenser module. When a heat exchanger in the condenser module fails, the operation requirements of the data center cannot be met when the first pump body or the second pump body operates alone. At this time, the first pump body and the second pump body can be controlled to start at the same time, and water can be controlled to enter the condenser module from the first inlet pipe and the second inlet pipe. After the cooling work is completed, the water is discharged from the first return pipe and the second return pipe through the first three-way valve and / or the second three-way valve. This allows the underwater data center to still operate normally when a heat exchanger fails, and the underwater data center can maintain the heat exchanger that cannot operate normally without shutting down, thereby maintaining the long-term stable operation of the underwater data center.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater data center cooling systems, and in particular to an underwater data center cooling system and an operating method thereof. Background Art

[0002] Land data centers occupy large areas, consume high energy, and consume a lot of fresh water. The main users of data centers are concentrated in developed cities along the coast of China. The land resources in these cities are scarce and expensive. All newly built land data centers are in the suburbs, resulting in high data latency. With the development of technology, underwater data centers have emerged. Underwater data centers do not consume fresh water, but use seawater for cooling; they do not require high-energy-consuming chillers and air conditioners for refrigeration, saving electricity; they do not occupy land resources; they are close to developed coastal cities and have low data latency. As a new technological development direction, underwater data centers have the characteristics of low heat dissipation energy consumption, short construction period, and flexible layout.

[0003] When the underwater data center cooling system in the prior art is in operation, seawater is pumped into the heat exchanger pipeline of the condenser module through a seawater pump, and the seawater flows in the cooling pipeline to remove the heat in the underwater data center to cool the underwater data center equipment. In order to reduce the attachment of marine organisms to the water outlet and the water inlet, the water outlet and the water inlet are set on the same seawater pump module, and the water outlet and the water inlet can be interchanged by adjusting the valve, so that the marine organisms at the water outlet are washed down. When a heat exchanger in the condenser module fails to work, the underwater data center cannot be cooled due to insufficient cooling power caused by the heat exchanger failure, so that the underwater data center and its cooling system must be shut down for maintenance, affecting the stability of the continuous operation of the underwater data center. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the underwater data center and its cooling system must be shut down for maintenance when a heat exchanger in the condenser module of the underwater data center cooling system fails, thereby providing an underwater data center cooling system and an operating method thereof.

[0005] In order to solve the above technical problems, the present invention provides an underwater data center cooling system, comprising:

[0006] A first pump module, on which a first inlet pipeline and a first return pipeline are arranged, and a first pump body is installed on the first inlet pipeline;

[0007] A second pump module, on which a second inlet pipeline and a second return pipeline are arranged, and a second pump body is installed on the second inlet pipeline;

[0008] A condenser module is provided with a water inlet and a water outlet, the first pump body and the second pump body are both connected to the water inlet, the first return pipe and the second return pipe are both connected to the water outlet, and multiple groups of heat exchangers are installed in parallel in the condenser module, the inlets of the multiple groups of heat exchangers are all connected to the water inlet, and the outlets of the multiple groups of heat exchangers are all connected to the water outlet;

[0009] A first filter is installed at the inlet end of the first inlet pipeline, a second filter is installed at the inlet end of the second inlet pipeline, the outlet end of the first return pipeline is connected to the first inlet pipeline, the outlet end of the second return pipeline is connected to the second inlet pipeline, a first three-way valve is arranged on the first return pipeline, and a second three-way valve is arranged on the second return pipeline.

[0010] Optionally, a plurality of groups of first filters are installed in parallel at the inlet end of the first inlet pipeline;

[0011] And / or a plurality of groups of second filters are installed in parallel at the inlet end of the second inlet pipeline.

[0012] Optionally, a first branch is connected to the pipeline between the inlet and the water inlet of the heat exchanger, and a second branch is connected to the pipeline between the outlet and the water outlet of the heat exchanger.

[0013] Optionally, control valves are provided at the water inlet and the water outlet of the condenser module.

[0014] Optionally, a flow meter is installed on the pipeline between the water inlet of the condenser module and the heat exchanger.

[0015] The present invention also provides an underwater data center cooling system operation method, which uses the underwater data center system of the present invention, including the following steps:

[0016] Start the first pump body, close the second pump body, control water to enter the condenser module from the first inlet pipeline, and after completing the cooling work, flow from the second return pipeline to the second inlet pipeline and be discharged;

[0017] The first pump body is turned off, and the second pump body is started to control water to flow into the condenser module from the second inlet pipeline. After the cooling work is completed, the water flows from the first return pipeline to the first inlet pipeline and is discharged;

[0018] The first pump body and the second pump body are started and operated alternately, and the time interval of the alternating operation is a preset time;

[0019] When a group of heat exchangers in the condenser module cannot work normally, the first pump body and the second pump body are controlled to start at the same time, and water is controlled to enter the condenser module from the first inlet pipe and the second inlet pipe. After the cooling work is completed, the water is discharged from the first return pipe and the second return pipe through the first three-way valve and / or the second three-way valve.

[0020] Optionally, determining whether the operating cooling power of the condenser module is less than the required cooling power;

[0021] If it is less than, another first filter is installed in parallel at the inlet end of the first inlet pipeline.

[0022] Optionally, determining whether the operating cooling power of the condenser module is less than the required cooling power;

[0023] If it is less than, another second filter is installed in parallel at the inlet end of the second inlet pipeline.

[0024] Optionally, the method further comprises the following steps:

[0025] When the first pump body and the second pump body are started at the same time, the heat exchanger that cannot work normally is maintained. After the maintenance is completed, the first pump body or the second pump body is turned off, and the first pump body and the second pump body are restored to alternately start and operate.

[0026] Optionally, maintenance includes repairing the heat exchanger or replacing the heat exchanger.

[0027] The technical solution of the present invention has the following advantages:

[0028] 1. The underwater data center cooling system provided by the present invention can install a first three-way valve on the first return line, so that the water flow in the first return line can enter the first inlet line, backwash the first filter at the inlet end of the first inlet line, and can also control the water flow in the first return line not to pass through the first inlet line, but to be directly discharged from the first three-way valve. A second three-way valve is installed on the second return line, so that the water flow in the second return line can enter the second inlet line, backwash the second filter at the inlet end of the second inlet line, and can also control the water flow in the second return line not to pass through the first inlet line, but to be directly discharged from the second three-way valve. During the operation of the underwater data center cooling system, the first pump body and the second pump body operate alternately when the system is operating normally. When a heat exchanger in the condenser module fails, the operation requirements of the data center cannot be met when the first pump body or the second pump body is running alone. At this time, the first pump body and the second pump body can be controlled to start at the same time, and water can be controlled to enter the condenser module from the first inlet pipe and the second inlet pipe. After the cooling work is completed, the water is discharged from the first return pipe and the second return pipe through the first three-way valve and / or the second three-way valve. This allows the underwater data center to operate normally when the heat exchanger fails, and the underwater data center can maintain the heat exchanger that does not work properly without shutting down, so as to maintain the long-term stable operation of the underwater data center.

[0029] 2. The underwater data center cooling system operation method provided by the present invention, using the underwater data center system of the present invention, includes the following steps: start the first pump body, close the second pump body, control water to enter the condenser module from the first inlet pipe, and after the cooling work is completed, flow from the second return pipe to the second inlet pipe and discharge; close the first pump body, start the second pump body, control water to enter the condenser module from the second inlet pipe, and after the cooling work is completed, flow from the first return pipe to the first inlet pipe and discharge; the first pump body and the second pump body are started and operated alternately, and the time interval of the alternating operation is a preset time; when a group of heat exchangers in the condenser module cannot work normally, control the first pump body and the second pump body to start at the same time, control water to enter the condenser module from the first inlet pipe and the second inlet pipe, and after the cooling work is completed, discharge from the first return pipe and the second return pipe through the first three-way valve and / or the second three-way valve. When the heat exchanger fails, the underwater data center can still operate normally, and the underwater data center can maintain the heat exchanger that cannot work normally without stopping, so as to maintain the long-term stable operation of the underwater data center. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a schematic structural diagram of an underwater data center cooling system provided in an embodiment of the present invention.

[0032] Figure 2 It is a schematic structural diagram of an underwater data center cooling system provided in another embodiment of the present invention.

[0033] Figure 3 It is a schematic structural diagram of an underwater data center cooling system provided in another embodiment of the present invention.

[0034] Explanation of the accompanying drawings: 1. First pump module; 2. Second pump module; 3. Condenser module; 4. First filter; 5. Second filter; 6. First pump body; 7. Second pump body; 8. First three-way valve; 9. Second three-way valve; 10. First branch; 11. Second branch; 12. Flow meter; 13. Heat exchanger; 14. Pressure sensor; 15. Temperature sensor. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] Example 1

[0040] Figure 1 The figure shows an underwater data center cooling system provided by the present embodiment, which is applied to the underwater data center and is used to dissipate heat and cool the underwater data center body. The underwater data center can be installed at the bottom of any large water body such as a river, lake, or sea. The underwater data center cooling system provided in the present embodiment for installing an underwater data center on the seabed includes a first pump module 1, a second pump module 2, and a condenser module 3. In actual installation, the first pump module 1, the second pump module 2, and the condenser module 3 are installed on the top of the data center body. Multiple groups of heat exchangers 13 are arranged in the condenser module 3. Cooling water pumped in from the first pump module 1 and the second pump module 2 flows on one side of the heat exchanger 13, and heat exchange medium flows on the other side of the heat exchanger 13. The heat exchange medium absorbs the heat emitted by the operation of the equipment in the data center body and exchanges the heat with the cooling water in the heat exchanger 13 to achieve cooling of the data center body.

[0041] The first pump module 1 is provided with a first inlet pipeline and a first return pipeline, a first filter 4 is installed at the inlet end of the first inlet pipeline, a first pump body 6 is installed at the outlet end of the first inlet pipeline, and the outlet end of the first pump body 6 is connected to the outside of the first pump module 1 through a pipeline. One end of the first return pipeline extends to the outside of the first pump module 1, and the other end is connected to the first inlet pipeline. In order to facilitate the rapid connection and docking of the first pump module 1 with the condenser module 3, quick connectors are provided at the end of the pipeline at the outlet end of the first pump body 6 and at the end of the first return pipeline extending to the outside of the first pump module 1. A first three-way valve 8 is provided on the first return pipeline, which is used to control the water flow in the first return pipeline to flow back to the first inlet pipeline or be directly discharged through the first three-way valve 8.

[0042] The second pump module 2 is provided with a second inlet pipeline and a second return pipeline, a second filter 5 is installed at the inlet end of the second inlet pipeline, and a second pump body 7 is installed at the outlet end of the second inlet pipeline. The outlet end of the second pump body 7 is connected to the outside of the second pump module 2 through a pipeline. One end of the second return pipeline extends to the outside of the second pump module 2, and the other end is connected to the second inlet pipeline. In order to facilitate the rapid connection and docking of the second pump module 2 and the condenser module 3, quick connectors are provided at the end of the pipeline at the outlet end of the second pump body 7 and at the end of the second return pipeline extending to the outside of the second pump module 2. A second three-way valve 9 is provided on the second return pipeline, which is used to control the water flow in the second return pipeline to flow back to the second inlet pipeline or be directly discharged through the second three-way valve 9.

[0043] The condenser module 3 is provided with two water inlets and two water outlets, and quick connectors are also provided on the water inlets and the water outlets. When the first pump module 1 and the second pump module 2 are connected to the condenser module 3, the pipe at the outlet end of the first pump body 6 and the pipe at the outlet end of the second pump body 7 are connected to the two water inlets respectively through pipes with quick connectors at both ends, and the first reflux pipeline and the second reflux pipeline are connected to the two water outlets respectively. The pipelines downstream of the two water inlets are connected to the first branch 10, and the pipelines upstream of the two water outlets are connected to the second branch 11. Ball valves as control valves are provided at the water inlet and the water outlet of the condenser module 3 to control the connection and disconnection between the two pump modules, the first pump module 1 and the second pump module 2, and the condenser module 3.

[0044] The condenser module 3 provided in this embodiment has four groups of heat exchangers 13 arranged in parallel. The pipelines downstream of the two water inlets in the condenser module 3 are first gathered into one pipeline, and then divided into four inlet branches, which are respectively connected to the inlets of the four groups of heat exchangers 13; the pipelines at the outlets of the four groups of heat exchangers 13 are first gathered into one pipeline, and then divided into two outflow branches, which are respectively connected to the two water outlets.

[0045] The outlet ends of the first branch 10 and the second branch 11 are both equipped with ball valves as switch valves. Pressure sensors 14 are installed at the inlet and outlet ends of the first pump body 6 and the second pump body 7 for real-time monitoring of the seawater pressure in the pipeline. Temperature sensors 15 and ball valves are installed on the outlet pipelines of each group of heat exchangers 13. The temperature sensor 15 is used to monitor the temperature of the seawater at the outlet of the heat exchanger 13 in real time. The inlet pipelines of the two groups of heat exchangers 13 are equipped with temperature sensors 15 for real-time monitoring of the temperature of the seawater entering the heat exchanger 13. When the system is operating normally, the temperature of the seawater entering the multiple groups of heat exchangers 13 is equal. Only temperature sensors are installed at the inlet of the two groups of heat exchangers 13 to monitor the inlet seawater temperature of the heat exchanger. The temperature values ​​of the two groups of temperature sensors are compared with each other, which can reduce the number of temperature sensors arranged and reduce equipment costs. A ball valve is installed on the inlet pipeline of each group of heat exchangers 13. The ball valve is used to control the on and off of the heat exchanger 13, so that a certain heat exchanger 13 can be disconnected from the pipeline when it needs maintenance. In the condenser module 3 , a flow meter 12 is installed on the pipeline downstream of the two water inlets, which is used to monitor the total flow of seawater entering the condenser module 3 in real time.

[0046] By setting up two groups of pump modules, namely a first pump module 1 and a second pump module 2, when the underwater cooling system is working, the first pump module 1 and the second pump module 2 operate alternately. When the operating power of the first pump module 1 or the second pump module 2 cannot meet the cooling power demand of the underwater data center, the water flow rate entering the underwater cooling system can be increased by connecting the first filter 4 in parallel at the inlet end of the first return pipeline or the second filter 5 in parallel at the inlet end of the second return pipeline. There is no need to additionally set up water pipelines, pump bodies, sensors and other equipment, which can greatly simplify the pipeline layout of the underwater cooling system, reduce the overall size of the underwater cooling system, reduce the number of components and control points in the system, and reduce the failure rate of the underwater cooling system when running at high power.

[0047] When the first pump body 6 is working, water flows in from the first inlet pipe and flows out from the second inlet pipe to backwash the second filter 5 on the second inlet pipe. When the second pump body 7 is working, water flows in from the second inlet pipe and flows out from the first inlet pipe to backwash the first filter 4 on the first inlet pipe. By backwashing the filter, microorganisms attached to the filter can be washed off the filter screen of the filter, reducing the attachment of microorganisms on the filter and increasing the heat exchange efficiency of the heat exchange device of the refrigerant system of the underwater data center.

[0048] By installing the first three-way valve 8 on the first return pipeline, the water flow in the first return pipeline can enter the first inlet pipeline to backwash the first filter 4 at the inlet end of the first inlet pipeline, and the water flow in the first return pipeline can be controlled not to pass through the first inlet pipeline and be directly discharged from the first three-way valve 8. The second three-way valve 9 is installed on the second return pipeline, so that the water flow in the second return pipeline can enter the second inlet pipeline to backwash the second filter 5 at the inlet end of the second inlet pipeline, and the water flow in the second return pipeline can be controlled not to pass through the first inlet pipeline and be directly discharged from the second three-way valve 9. During the operation of the underwater data center cooling system, the first pump body 6 and the second pump body 7 operate alternately when the system is operating normally. When a heat exchanger 13 in the condenser module 3 fails, the operation requirements of the data center cannot be met when the first pump body 6 or the second pump body 7 is running alone. At this time, the first pump body 6 and the second pump body 7 can be controlled to start simultaneously, and water can be controlled to enter the condenser module 3 from the first inlet pipe and the second inlet pipe. After the cooling work is completed, the water is discharged from the first return pipe and the second return pipe through the first three-way valve 8 and / or the second three-way valve 9. When the heat exchanger 13 fails, the underwater data center can still operate normally. The underwater data center can maintain the heat exchanger 13 that cannot work normally without shutting down, and maintain the long-term stable operation of the underwater data center.

[0049] When the first pump module 1 needs maintenance and the second pump module 2 can operate normally, close the water inlet connected to the first pump body 6, close the water outlet connected to the first return line, control the water to enter the condenser module 3 from the second inlet line, and after the cooling work is completed, discharge it from the second return line through the second three-way valve 9. When the second pump module 2 needs maintenance and the first pump module 1 can operate normally, close the water inlet connected to the second pump body 7, close the water outlet connected to the second return line, control the water to enter the condenser module 3 from the first inlet line, and after the cooling work is completed, discharge it from the first return line through the first three-way valve 8. When both the first pump module 1 and the second pump module 2 need maintenance, connect the maintenance submersible pump to the first branch 10; start the maintenance submersible pump, close all water inlets and all water outlets, control the water to enter the condenser module 3 from the maintenance submersible pump, and after the cooling work is completed, discharge it from the second branch 11. By connecting the outlet of the first return pipeline to the first inlet pipeline, and setting the first three-way valve 8 on the first return pipeline, connecting the outlet of the second return pipeline to the second inlet pipeline, and setting the second three-way valve 9 on the second inlet pipeline. When the first three-way valve 8 connects the first return pipeline with the first inlet pipeline, the first inlet pipeline can be backwashed, and when the second three-way valve 9 connects the second return pipeline with the second inlet pipeline, the second inlet pipeline can be backwashed, so that the first pump module 1 and the second pump module 2 can backwash each other. When a pump module needs to be shut down for maintenance, the three-way valve of the running pump module connects the return pipeline with the outside world, so that the first pump module 1 and the second pump module 2 can still operate separately. When the two pump modules need to be shut down for maintenance at the same time, the first branch 10 is used to connect the maintenance submersible pump, and the second branch 11 is used to drain water, so that whether one pump module needs maintenance or both pump modules need maintenance, the underwater data center can still operate normally.

[0050] As an alternative implementation, Figure 2 As shown, in order to increase the flow rate of seawater pumped in by the first pump module 1 and the second pump module 2 and improve the cooling power, two sets of first filters 4 are arranged in parallel at the inlet end of the first inlet pipeline, and two sets of second filters 5 are arranged in parallel at the inlet end of the second inlet pipeline. In other embodiments, the number of first filters 4 and second filters 5 arranged in parallel can be set according to the cooling power required by the underwater data center.

[0051] As an alternative implementation, Figure 3 As shown, in order to avoid sudden shutdown when a pump body in the first pump module 1 or the second pump module 2 fails, two groups of first pump bodies in the first pump module 1 and second pump bodies in the second pump module 2 are arranged in parallel. In other embodiments, the number of first pump bodies and second pump bodies arranged in parallel can be set according to the use requirements and maintenance cycle of the underwater data center.

[0052] Example 2

[0053] This embodiment provides an underwater data center cooling system operation method, including an underwater data center cooling system operation method under normal working conditions, an underwater data center cooling system operation method when the heat exchanger 13 needs to be shut down for maintenance, and an underwater data center pump module maintenance operation method when the pump module needs maintenance, thereby realizing non-stop maintenance of the underwater data center. The underwater data center described in Application Example 1 includes the following steps:

[0054] The first pump module 1 is used in conjunction with the second pump module 2. Taking the first pump module 1 as the main unit as an example, there are the following five operating conditions.

[0055] Working condition 1 (normal working condition): the first pump body 6 is running, seawater is sucked in by the first filter 4, and enters the four heat exchangers 13 in the condenser module 3 through the first pump body 6 water pump and the flow meter 12 in turn to complete the heat exchange, and then passes through the second reflux pipeline, the second three-way valve 9, and is discharged through the second filter 5 of the second inlet pipeline to achieve backwashing of the second filter 5.

[0056] Working condition 2 (normal working condition): the second pump body 7 is running, seawater is sucked in by the second filter 5, and enters the four heat exchangers 13 in the condenser module 3 through the second pump body 7 and the flow meter 12 in turn to complete the heat exchange, and then passes through the first reflux pipeline, the first three-way valve 8 and the first filter 4 to be discharged. The above can complete the backwashing of the first filter 4 and realize the patrol operation of the second pump body 7 at the same time.

[0057] The working condition 1 and the working condition 2 are switched regularly, so that the patrol operation of the first pump body 6 and the second pump body 7 and the mutual backwashing of the first filter 4 and the second filter 5 can be completed.

[0058] Working condition three (heat exchanger 13 failure working condition): At this time, the first pump module 1 and the second pump module 2 are running at the same time. Assuming that one of the four heat exchangers 13 fails, it is necessary to start the dual pumps in parallel to increase the flow rate and increase the heat exchange capacity of the other three normal heat exchangers 13, thereby ensuring the normal operation of the server equipment in the cabin of the data center. This is an emergency working condition, and the operation process is as follows: after the condenser fails, the first pump body 6 and the second pump body 7 run in parallel, and the seawater is sucked in by the first filter 4 and the second filter 5 at the same time, and enters the normally working heat exchanger 13 through the first pump body 6 and the second pump body 7, and the flowmeter 12 to complete the heat exchange, and finally discharged through the first three-way valve 8 on the first return pipeline and the second three-way valve 9 on the second return pipeline.

[0059] Working condition four (maintenance condition of the first pump module 1 or the second pump module 2): Assuming that the first pump module 1 needs maintenance, the ball valve connecting the first pump module 1 to the condenser module 3 is closed, the second pump body 7 is running, and the seawater is sucked in by the second filter 5, passes through the second pump body 7 and the flow meter 12, enters the four heat exchangers 13 to complete the heat exchange, and then flows back to the second reflux pipeline and is discharged through the second three-way valve 9.

[0060] Similarly, if the second pump module 2 needs maintenance, the ball valve connecting the second pump module 2 to the condenser module 3 is closed, the first pump body 6 is running, seawater is sucked in by the first filter 4, passes through the first pump body 6 and the flow meter 12, enters the heat exchanger 13 to complete heat exchange, and is finally discharged through the → first three-way valve 8.

[0061] After completing the maintenance work of the corresponding pump module, open the ball valve connecting the pump module to the condenser module 3 and switch to normal operation.

[0062] Working condition 5 (deck maintenance working condition): When the first pump module 1 or the second pump module 2 needs to be shut down for maintenance, or when the underwater data center needs to be upgraded to the deck as a whole to open the cabin for maintenance, the seawater pump module on the top of the cabin cannot absorb water and exchange heat when the cabin is upgraded to sea level. In order to ensure the normal operation of the server in the cabin on the deck, the first branch 10 and the second branch 11 are reserved on the condenser module 3, which are the maintenance interface inlet and the maintenance interface outlet, respectively. The reserved first branch 10 and the second branch 11 pipeline interface and the ball valve are normally closed. When the cabin is upgraded to sea level, the maintenance submersible pump and the hose are connected to the first branch 10 as the maintenance interface inlet, and the other hose is connected to the second branch 11 as the maintenance interface outlet. After the seawater pump module stops running, the reserved ball valve and the maintenance submersible pump are immediately opened. At this time, the maintenance submersible pump is running, and seawater is sucked in through the maintenance submersible pump, through the hose to the maintenance interface inlet and the flow meter 12, and then enters the four sets of heat exchangers 13 to complete the heat exchange, and finally passes through the maintenance interface outlet and is discharged through the hose.

[0063] The operating method of the underwater cooling system of the underwater data center provided in this embodiment can ensure the normal operation of the servers inside the underwater data center body cabin, regardless of whether the pump module is being maintained, the data center body is being maintained, or the heat exchanger 13 is being maintained, so that the underwater data center does not need to be shut down during operation, thereby maintaining the long-term stable operation of the underwater data center.

[0064] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An underwater data center cooling system, characterized in that: include: A first pump module (1) is provided with a first inlet pipeline and a first return pipeline, and a first pump body (6) is installed on the first inlet pipeline; A second pump module (2) is provided with a second inlet pipeline and a second return pipeline, and a second pump body (7) is installed on the second inlet pipeline; A condenser module (3) is provided with a water inlet and a water outlet, the first pump body (6) and the second pump body (7) are both in communication with the water inlet, the first return pipeline and the second return pipeline are both in communication with the water outlet, a plurality of groups of heat exchangers (13) are installed in parallel in the condenser module (3), the inlets of the plurality of groups of heat exchangers (13) are all in communication with the water inlet, and the outlets of the plurality of groups of heat exchangers (13) are all in communication with the water outlet; A first filter (4) is installed at the inlet end of the first inlet pipeline, a second filter (5) is installed at the inlet end of the second inlet pipeline, an outlet end of the first return pipeline is connected to the first inlet pipeline, an outlet end of the second return pipeline is connected to the second inlet pipeline, a first three-way valve (8) is provided on the first return pipeline, and a second three-way valve (9) is provided on the second return pipeline; When the underwater data center cooling system is in operation, the following steps are involved: Step 1: Start the first pump body (6), close the second pump body (7), control water to enter the condenser module (3) from the first inlet pipeline, and after completing the cooling work, flow from the second return pipeline to the second inlet pipeline and be discharged; Step 2: close the first pump body (6), start the second pump body (7), control the water to enter the condenser module (3) from the second inlet pipeline, and after the cooling work is completed, flow from the first return pipeline into the first inlet pipeline and be discharged; Step 1 and step 2 are started and run alternately, and the time interval between the alternating runs is a preset time; When a group of heat exchangers (13) in the condenser module (3) fails to work normally, the first pump body (6) and the second pump body (7) are controlled to start simultaneously, and water is controlled to enter the condenser module (3) from the first inlet pipe and the second inlet pipe. After the cooling work is completed, the water is discharged from the first return pipe and the second return pipe through the first three-way valve (8) and / or the second three-way valve (9).

2. The underwater data center cooling system according to claim 1, characterized in that: A plurality of groups of the first filters (4) are installed in parallel at the inlet end of the first inlet pipeline; And / or a plurality of groups of the second filters (5) are installed in parallel at the inlet end of the second inlet pipeline.

3. The underwater data center cooling system according to claim 1 or 2, characterized in that: A first branch (10) is connected to the pipeline between the inlet of the heat exchanger (13) and the water inlet, and a second branch (11) is connected to the pipeline between the outlet of the heat exchanger (13) and the water outlet.

4. The underwater data center cooling system according to claim 1 or 2, characterized in that: Control valves are provided at the water inlet and the water outlet of the condenser module (3).

5. The underwater data center cooling system according to claim 1 or 2, characterized in that: A flow meter (12) is installed on the pipeline between the water inlet of the condenser module (3) and the heat exchanger (13).

6. The underwater data center cooling system according to claim 1, characterized in that: Determining whether the operating cooling power of the condenser module (3) is less than the required cooling power; If it is less than, another first filter (4) is installed in parallel at the inlet end of the first inlet pipeline.

7. The underwater data center cooling system according to claim 1, characterized in that: Determining whether the operating cooling power of the condenser module (3) is less than the required cooling power; If it is less than, another second filter (5) is installed in parallel at the inlet end of the second inlet pipeline.

8. The underwater data center cooling system according to claim 6 or 7, characterized in that: The following steps are also included: When the first pump body (6) and the second pump body (7) are started simultaneously, the heat exchanger (13) that is not functioning normally is maintained. After the maintenance is completed, the first pump body (6) or the second pump body (7) is shut down, and the first pump body (6) and the second pump body (7) are restored to alternately start and operate.

9. The underwater data center cooling system according to claim 8, characterized in that: The maintenance includes repairing the heat exchanger (13) or replacing the heat exchanger (13).

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