Seabed data center double-loop cooling system suitable for shallow sea area

Abstract

The invention provides a seabed data center double-loop cooling system suitable for a shallow sea area, and the system comprises a heat exchanger which is respectively communicated with a pressure reducing valve, a cooling working medium storage box and a compressor through a first circulation loop; the heat exchanger is provided with an open-loop cooling channel, seawater circulates in the open-loop cooling channel, and the cooling working medium in the circulation loop is cooled through the seawater. Seawater can also directly cool the subsea data center cooling housing through the second circulation loop via valve control. According to the invention, the cooling requirements of the seabed data center can be met at different seawater temperatures through the two circulation loops, and meanwhile, the energy consumption and the PUE value of the cooling system are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of seawater cooling, and in particular relates to a double-circuit cooling system for a submarine data center suitable for shallow sea areas. Background Art

[0002] The cooling system of land-based data centers has the characteristics of high energy consumption. Most data centers need to consume a large amount of fresh water for cooling, and the energy consumption of the cooling system is high. However, submarine data centers can be directly cooled by seawater, which can greatly reduce energy consumption and the PUE (Power Usage Effectiveness) of the entire data center.

[0003] The cooling system of the submarine data center is located in shallow underwater waters. The seawater temperature varies significantly with the seasons, so a cooling system solution is needed that can meet the cooling needs at different seawater temperatures. Summary of the invention

[0004] The object of the present invention is to provide a dual-circuit cooling system for a submarine data center suitable for shallow sea areas.

[0005] A dual-circuit cooling system for a submarine data center in shallow sea areas, comprising a heat exchanger and a submarine data center cooling shell; the heat exchanger has an open-loop cooling channel and an inner cooling medium channel, the open-loop cooling channel of the heat exchanger is connected to a seawater circulation loop, the inner cooling medium channel of the heat exchanger is connected to a first circulation loop, and the submarine data center cooling shell is in the first circulation loop and is also connected to a seawater circulation loop through a second circulation loop;

[0006] When the seawater temperature is low, the subsea data center cooling shell is cooled through a second circulation loop;

[0007] When the seawater temperature is high, the subsea data center cooling shell is cooled through the first circulation loop.

[0008] The first circulation loop includes a pressure reducing valve, a cooling medium storage tank and a compressor;

[0009] The cooling medium first passes through a pressure reducing valve to reduce the pressure and temperature of the cooling medium; then passes through a cooling medium storage tank to store the cooled cooling medium; finally, after passing through the cooling channel outlet of the cooling shell of the submarine data center, the pressure and temperature of the cooling medium are increased by a compressor; and then returns to the cooling medium channel inside the heat exchanger.

[0010] Seawater flows in the open-loop cooling channel of the heat exchanger, and the cooling medium in the circulation loop is cooled by the seawater.

[0011] It also includes a seawater pump, which is located on the open-loop cooling channel and is used to promote the flow of seawater to improve heat exchange efficiency.

[0012] It also includes a seawater filter. The first seawater filter is located at the inlet of the open-loop cooling channel to reduce the damage of impurities in the seawater to the heat exchanger. The second seawater filter is located at the outlet of the open-loop cooling channel to prevent impurities from polluting the seawater.

[0013] The open-loop cooling channel is provided with a one-way valve. The first one-way valve is located at the outlet of the seawater pump and only allows seawater to flow into the open-loop cooling channel. The second one-way valve is located at the inlet of the second seawater filter and only allows seawater to flow out of the open-loop cooling channel. In the non-working state, it is used to avoid the backflow of seawater.

[0014] The open-loop cooling channel and the second circulation loop are both connected with valves for controlling the use of the second circulation loop and the flow rate of seawater.

[0015] The cooling medium is a low-boiling-point organic medium, which can be selected according to the required maintenance temperature of the server.

[0016] The beneficial effects of the present invention are:

[0017] 1. The cooling system for the submarine data center provided by the present invention can directly cool the cooling shell of the submarine data center through the second circulation loop when the seawater temperature is low. At this time, the cooling demand for the submarine data center can be met, and the overall energy consumption is reduced.

[0018] 2. The cooling system for the submarine data center provided by the present invention, when the seawater temperature is high, the cooling medium needs to be compressed by the compressor before entering the heat exchanger, and the seawater cools the cooling medium through the heat exchanger. At this time, the seawater flow rate flowing through the heat exchanger is relatively high, and it can still meet the cooling demand for the cooling shell of the submarine data center and meet the cooling demand for the submarine data center throughout the year.

[0019] 3. The cooling system for the submarine data center provided by the present invention can change the operation mode according to different seawater temperatures to meet the cooling needs of the submarine data center, greatly reducing the energy consumption and PUE value of the cooling system throughout the year. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 1 It is a schematic diagram of the cooling system provided in the present invention.

[0022] Description of reference numerals:

[0023] 1. Shell and tube heat exchanger; 2. IT server; 3. Cooling medium storage tank; 4. Compressor; 5. Pressure reducing valve; 6. Seawater pump; 7. Seawater filter; 8. Valve; 9. Check valve; 10. First circulation loop; 11. Second circulation loop. DETAILED DESCRIPTION

[0024] 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.

[0025] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] 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.

[0027] 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.

[0028] The cooling system for a submarine data center provided in this embodiment includes: a heat exchanger 1, a pressure reducing valve 5, and a compressor 4. The cooling shell of the submarine data center is cooled through the heat exchanger 1, the pressure reducing valve 5, and the compressor 4 through a first circulation loop 10; and the seawater directly cools the submarine data cooling center through a second circulation loop 11.

[0029] like Figure 1As shown, the compressor 4 is connected to the first circulation loop 10, and a one-way valve is provided on the open-loop cooling channel. The first one-way valve is located at the outlet of the seawater pump 6, and only allows seawater to flow into the open-loop cooling channel. The second one-way valve is located at the inlet of the second seawater filter 7, and only allows seawater to flow out of the open-loop cooling channel. In the non-working state, it is used to avoid the backflow of seawater.

[0030] The inlet pipeline of the submarine data cooling center is connected to the cooling medium storage tank 3 on the first circulation loop 10, and is connected to the valve 8 on the second circulation loop 11. When the seawater temperature is low, the submarine data cooling center directly cools the cooling shell of the submarine data center through the second circulation loop 11, and when the seawater temperature is high, the cooling medium at the outlet of the cooling channel of the cooling shell of the submarine data center flows through the compressor 4 for pressurization and temperature increase, and then flows through the heat exchanger 1 for cooling, so that the cooling demand for the submarine data center can be met when the seawater temperature changes, while reducing energy consumption.

[0031] like Figure 1 As shown, the pressure reducing valve 5 reduces the pressure and temperature of the cooling medium to achieve a temperature that meets the cooling requirements, and the state of the cooling medium that meets the cooling requirements can be achieved by controlling the on and off of the pressure reducing valve 5.

[0032] like Figure 1 As shown, the heat exchanger 1 has an open-loop cooling channel, in which seawater flows, and the cooling medium in the circulation loop is cooled by the seawater; the seawater can also be used to directly cool the cooling shell of the submarine data center through the second circulation loop 11.

[0033] like Figure 1 As shown, the open-loop cooling channel is provided with a valve 8, and by controlling the on-off of the valve 8, the following can be achieved: when the seawater temperature is low, the flow rate of seawater is reduced; when the seawater temperature is high, the flow rate of seawater is increased.

[0034] like Figure 1 As shown, the open-loop cooling channel is provided with a seawater filter. The first seawater filter is located at the inlet of the open-loop cooling channel to reduce the damage of impurities in the seawater to the heat exchanger. The second seawater filter 7 is located at the outlet of the open-loop cooling channel to prevent impurities from contaminating the seawater.

[0035] The open-loop cooling channel is connected to a seawater pump 6, which promotes the flow of seawater to improve heat exchange efficiency. The open-loop cooling channel is provided with a second one-way valve, which is used to avoid the backflow of seawater in a non-working state.

[0036] like Figure 1 As shown, the second circulation loop 11 is provided with a valve 8 , and the use of the second circulation loop 2 and the flow rate of seawater are controlled by controlling the valve 8 .

[0037] The cooling medium used in the present invention is a low-boiling point organic medium, which can be selected according to the temperature required to be maintained by the server.

[0038] 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. A dual-circuit cooling system for submarine data centers in shallow waters, characterized in that: The invention comprises a heat exchanger (1) and a cooling shell of a submarine data center; the heat exchanger (1) has an open-loop cooling channel and an inner cooling medium channel; the open-loop cooling channel of the heat exchanger (1) is connected to a seawater circulation loop; the inner cooling medium channel of the heat exchanger (1) is connected to a first circulation loop (10); the cooling shell of the submarine data center is in the first circulation loop (10) and is also connected to the seawater circulation loop via a second circulation loop (11); When the seawater temperature is low, the cooling shell of the submarine data center is cooled through the second circulation loop (11); When the seawater temperature is high, the subsea data center cooling shell is cooled through the first circulation loop (10).

2. According to claim 1, a dual-circuit cooling system for a submarine data center suitable for shallow sea areas is characterized by: The first circulation loop (10) comprises a pressure reducing valve (5), a cooling medium storage tank (3) and a compressor (4); The cooling medium first passes through a pressure reducing valve (5) to reduce the pressure and temperature of the cooling medium; then passes through a cooling medium storage tank (3) to store the cooled cooling medium; finally, after passing through the cooling channel outlet of the cooling shell of the submarine data center, the cooling medium passes through a compressor (4) to increase the pressure and temperature of the cooling medium; and then returns to the cooling medium channel inside the heat exchanger (1).

3. According to claim 1, a dual-circuit cooling system for a submarine data center suitable for shallow sea areas is characterized by: Seawater flows in the open-loop cooling channel of the heat exchanger (1), and the cooling medium in the circulation loop is cooled by the seawater.

4. According to claim 1, a dual-circuit cooling system for a submarine data center suitable for shallow sea areas is characterized by: It also includes a seawater pump (6), which is located on the open-loop cooling channel and is used to promote the flow of seawater to improve heat exchange efficiency.

5. According to claim 1, a dual-circuit cooling system for a submarine data center suitable for shallow sea areas is characterized by: It also includes a seawater filter, wherein the first seawater filter is located at the inlet of the open-loop cooling channel and is used to reduce the damage of impurities in the seawater to the heat exchanger, and the second seawater filter (7) is located at the outlet of the open-loop cooling channel and is used to prevent the impurities from polluting the seawater.

6. According to claim 3, a dual-circuit cooling system for a submarine data center suitable for shallow sea areas is characterized by: The open-loop cooling channel is provided with a one-way valve, wherein the first one-way valve is located at the outlet of the seawater pump (6) and only allows seawater to flow into the open-loop cooling channel, and the second one-way valve is located at the inlet of the second seawater filter and only allows seawater to flow out of the open-loop cooling channel, and is used to avoid the backflow of seawater in a non-working state.

7. The dual-circuit cooling system for a submarine data center suitable for shallow sea areas according to claim 3 is characterized by: The open-loop cooling channel and the second circulation loop (11) are both connected with a valve (8) for controlling the use of the second circulation loop (2) and the flow rate of seawater.

8. The dual-circuit cooling system for a submarine data center suitable for shallow sea areas according to claim 2 is characterized in that: The cooling medium is a low-boiling-point organic medium, which can be selected according to the required maintenance temperature of the server.

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