Composite refrigeration device of data center

Abstract

The utility model provides a combined type refrigerating device of a data center, relates to the technical field of refrigerating devices, and aims to solve the technical problems that in the prior art, a refrigerating device of the data center cannot effectively refrigerate when the outdoor environment temperature is high, and equipment is possibly damaged due to water leakage. According to the data center combined type refrigerating device, one end of a first main pipeline, one end of a second main pipeline, one end of a third main pipeline and one end of a fourth main pipeline are connected with an air outlet of an air-cooled evaporator, an air inlet of an air-cooled condenser, an air inlet of the air-cooled evaporator and an air outlet of the air-cooled condenser respectively; the first auxiliary pipeline and the second auxiliary pipeline are both connected between the first main pipeline and the second main pipeline, the third auxiliary pipeline and the fourth auxiliary pipeline are both connected between the third main pipeline and the fourth main pipeline, the first auxiliary pipeline is connected with a nitrogen pump and a first electromagnetic valve in series, and the second auxiliary pipeline is connected with a compressor and a second electromagnetic valve in series. The third auxiliary pipeline is connected with an electronic expansion valve and a third electromagnetic valve in series. The fourth auxiliary pipeline is connected with a fourth electromagnetic valve in series.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, specifically to a data center composite refrigeration device. Background Technology

[0002] Data centers are facilities used for the centralized storage, management, and distribution of data, typically comprising a large number of servers, storage devices, and network equipment. They play a crucial role in modern information technology architectures and are widely used in fields such as cloud computing, web hosting, and enterprise data management.

[0003] Data centers generate a significant amount of heat during operation, necessitating the installation of cooling systems. Currently, data center cooling systems on the market typically employ gravity heat pipes or water-cooled chillers combined with terminal units. This presents several challenges: Gravity heat pipes alone require a substantial temperature difference between the indoor and outdoor environments, rendering them ineffective when outdoor temperatures are high. Water-cooled chillers combined with terminal units introduce water leakage, posing a safety hazard; leaks could damage equipment in the data center. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a composite cooling device for data centers, so as to solve the technical problems that the existing data center cooling devices cannot effectively cool when the outdoor ambient temperature is high and that water leakage may cause equipment damage.

[0005] To solve the above-mentioned technical problems, this utility model provides a data center composite cooling device, including an air-cooled evaporator, an air-cooled condenser, a first main pipe, a second main pipe, a third main pipe, a fourth main pipe, a first auxiliary pipe, a second auxiliary pipe, a third auxiliary pipe, and a fourth auxiliary pipe. One end of the first main pipe is connected to the air outlet of the air-cooled evaporator, one end of the second main pipe is connected to the air inlet of the air-cooled condenser, one end of the third main pipe is connected to the air inlet of the air-cooled evaporator, one end of the fourth main pipe is connected to the air outlet of the air-cooled condenser, and one end of the first auxiliary pipe is connected to... One end of the second auxiliary pipeline is connected to the other end of the first main pipeline. The other ends of the first and second auxiliary pipelines are both connected to the other end of the second main pipeline. One end of the third and fourth auxiliary pipelines are both connected to the other end of the third main pipeline. The other ends of the third and fourth auxiliary pipelines are both connected to the other end of the fourth main pipeline. A nitrogen pump and a first solenoid valve are connected in series on the first auxiliary pipeline. A compressor and a second solenoid valve are connected in series on the second auxiliary pipeline. An electronic expansion valve and a third solenoid valve are connected in series on the third auxiliary pipeline. A fourth solenoid valve is connected in series on the fourth auxiliary pipeline.

[0006] With the above structure, the data center composite cooling device of this utility model has the following advantages: When the outdoor ambient temperature is low, the first and fourth solenoid valves are connected, the second and third solenoid valves are disconnected, the compressor does not work, and the nitrogen pump starts to work for heat pipe cooling; when the outdoor ambient temperature is high, the first and fourth solenoid valves are disconnected, the second and third solenoid valves are connected, the compressor works, the nitrogen pump stops working, and the compressor performs cooling. In this way, even when the ambient temperature is high, the data center can still be effectively cooled, and there is no need to use a water-cooled chiller unit, avoiding damage to the equipment caused by water pipe leakage. In addition, switching to heat pipe cooling mode when the ambient temperature is low can reduce energy consumption compared to using compressor cooling alone.

[0007] As an improvement, the air-cooled evaporator is connected to a centrifugal fan; this structure is used to blow cool air into the room.

[0008] As an improvement, the air-cooled condenser is connected to an axial fan; this structure is used to blow hot air outdoors.

[0009] As an improvement, a low-pressure controller is connected in series on the first main pipeline or the second auxiliary pipeline, and a high-pressure controller is connected in series on the second main pipeline or the second auxiliary pipeline. The low-pressure controller is located on the side closer to the compressor air inlet, and the high-pressure controller is located on the side closer to the compressor air outlet. With this structure, the compressor is protected by setting up low-pressure and high-pressure controllers.

[0010] As an improvement, a liquid receiver is connected in series on the fourth main pipeline; with this structure, the liquid receiver is used to store or supply refrigerant depending on the refrigeration conditions, so that there is enough refrigerant in the refrigeration unit under various conditions.

[0011] As an improvement, a dryer filter is connected in series on the fourth main pipeline; this structure is used for drying and filtering gases.

[0012] As an improvement, right-angle shut-off valves are connected in series on both the second and fourth main pipelines. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the interior part of this utility model.

[0015] Figure 3 This is a schematic diagram of the outdoor portion of this utility model.

[0016] Reference numerals in the attached diagram: 1. Air-cooled evaporator; 2. Air-cooled condenser; 3. First main pipeline; 4. Second main pipeline; 5. Third main pipeline; 6. Fourth main pipeline; 7. First auxiliary pipeline; 8. Second auxiliary pipeline; 9. Third auxiliary pipeline; 10. Fourth auxiliary pipeline; 11. Nitrogen pump; 12. First solenoid valve; 13. Compressor; 14. Second solenoid valve; 15. Electronic expansion valve; 16. Third solenoid valve; 17. Fourth solenoid valve; 18. Centrifugal fan; 19. Axial flow fan; 20. Low-pressure controller; 21. High-pressure controller; 22. Liquid receiver; 23. Dryer filter; 24. Right-angle shut-off valve. Detailed Implementation

[0017] The following is a detailed description of the data center composite cooling device of this utility model with reference to the accompanying drawings.

[0018] like Figures 1 to 3 As shown, a data center composite cooling device includes an air-cooled evaporator 1, an air-cooled condenser 2, a first main pipe 3, a second main pipe 4, a third main pipe 5, a fourth main pipe 6, a first auxiliary pipe 7, a second auxiliary pipe 8, a third auxiliary pipe 9, and a fourth auxiliary pipe 10. One end of the first main pipe 3 is connected to the air outlet of the air-cooled evaporator 1, one end of the second main pipe 4 is connected to the air inlet of the air-cooled condenser 2, one end of the third main pipe 5 is connected to the air inlet of the air-cooled evaporator 1, one end of the fourth main pipe 6 is connected to the air outlet of the air-cooled condenser 2, and one end of the first auxiliary pipe 7 and one end of the second auxiliary pipe 8 are both connected to the first... The other end of the main pipeline 3, the other end of the first auxiliary pipeline 7, and the other end of the second auxiliary pipeline 8 are all connected to the other end of the second main pipeline 4. One end of the third auxiliary pipeline 9 and one end of the fourth auxiliary pipeline 10 are all connected to the other end of the third main pipeline 5. The other end of the third auxiliary pipeline 9 and the other end of the fourth auxiliary pipeline 10 are all connected to the other end of the fourth main pipeline 6. A nitrogen pump 11 and a first solenoid valve 12 are connected in series on the first auxiliary pipeline 7. A compressor 13 and a second solenoid valve 14 are connected in series on the second auxiliary pipeline 8. An electronic expansion valve 15 and a third solenoid valve 16 are connected in series on the third auxiliary pipeline 9. A fourth solenoid valve 17 is connected in series on the fourth auxiliary pipeline 10.

[0019] like Figure 1 and Figure 2 As shown, the air-cooled evaporator 1 is connected to a centrifugal fan 18. A low-pressure controller 20 is connected in series on the first main pipeline 3 or the second auxiliary pipeline 8, and a high-pressure controller 21 is connected in series on the second main pipeline 4 or the second auxiliary pipeline 8. The low-pressure controller 20 is located near the air inlet of the compressor 13, and the high-pressure controller 21 is located near the air outlet of the compressor 13. In this embodiment, the low-pressure controller 20 is located on the second auxiliary pipeline 8, and the high-pressure controller 21 is located on the second main pipeline 4. A liquid receiver 22 and a dryer filter 23 are connected in series on the fourth main pipeline 6, and the liquid receiver 22 is closer to the air-cooled condenser 2 than the dryer filter 23. Figure 1 and Figure 3As shown, the air-cooled condenser 2 is connected to an axial fan 19; in addition, right-angle shut-off valves 24 are connected in series on the second main pipeline 4 and the fourth main pipeline 6. The right-angle shut-off valve 24 on the second main pipeline 4 is located between the high-pressure controller 21 and the air-cooled condenser 2, and the right-angle shut-off valve 24 on the fourth main pipeline 6 is located between the liquid receiver 22 and the air-cooled condenser 2.

[0020] The structure of this utility model is divided into an indoor part and an outdoor part, as detailed below. Figure 2 and Figure 3 As shown, the second main pipeline 4 and the fourth main pipeline 6 connect the indoor section and the outdoor section.

[0021] When the outdoor ambient temperature is low, the first solenoid valve 12 and the fourth solenoid valve 17 are connected, while the second solenoid valve 14 and the third solenoid valve 16 are disconnected. The compressor 13 does not operate, and the nitrogen pump 11 starts working to perform heat pipe cooling. The high-temperature refrigerant gas enters the air-cooled condenser 2 and condenses into a low-temperature refrigerant. The low-temperature refrigerant then passes through the receiver 22 and the dryer filter 23 before entering the air-cooled evaporator 1. The centrifugal fan 18 then blows cold air to the data center. The nitrogen pump 11 receives the refrigerant output from the air-cooled evaporator 1 and outputs high-temperature refrigerant gas to the air-cooled condenser 2, achieving cyclic cooling. When the outdoor ambient temperature is high, the first solenoid valve 12 and the fourth solenoid valve 17 are disconnected, while the second solenoid valve 14 and the third solenoid valve 16 are connected. The compressor 13 operates, and the nitrogen pump 11 stops working, allowing the compressor 13 to perform cooling. The compressor 13 outputs high-temperature, high-pressure refrigerant gas, which condenses into a high-temperature refrigerant liquid after passing through the air-cooled condenser 2. This liquid then passes through the receiver 22 and the dryer filter 23 before passing through the electronic cooling system. Expansion valve 15 outputs low-temperature refrigerant into air-cooled evaporator 1, which then blows cold air to the data center via centrifugal fan 18. Air-cooled evaporator 1 outputs low-temperature refrigerant gas into compressor 13, which then outputs high-temperature, high-pressure gas, completing the cyclic cooling process. This ensures effective cooling of the data center even at high ambient temperatures, eliminating the need for water-cooled chillers and preventing damage from leaking water pipes. Furthermore, switching to heat pipe cooling mode at low ambient temperatures reduces energy consumption. Outdoor temperature detection is achieved through an outdoor temperature sensor electrically connected to the control system. The control system automatically switches the operating mode based on the set temperature, effectively improving energy efficiency. This system also controls the dew point temperature based on the data center room temperature, increasing the sensible heat ratio of the unit and preventing condensation on electrical components, thus preventing damage. The refrigeration compressor 13 uses a frequency converter to automatically adjust its frequency according to the room dew point temperature.

[0022] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above-described embodiment. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

Claims

1. A data center composite cooling device, characterized in that, This includes an air-cooled evaporator (1), an air-cooled condenser (2), a first main pipe (3), a second main pipe (4), a third main pipe (5), a fourth main pipe (6), a first auxiliary pipe (7), a second auxiliary pipe (8), a third auxiliary pipe (9), and a fourth auxiliary pipe (10). One end of the first main pipe (3) is connected to the air outlet of the air-cooled evaporator (1), one end of the second main pipe (4) is connected to the air inlet of the air-cooled condenser (2), one end of the third main pipe (5) is connected to the air inlet of the air-cooled evaporator (1), one end of the fourth main pipe (6) is connected to the air outlet of the air-cooled condenser (2), and one end of the first auxiliary pipe (7) and one end of the second auxiliary pipe (8) are both connected to the other end of the first main pipe (3). The other end of the first auxiliary pipeline (7) and the other end of the second auxiliary pipeline (8) are both connected to the other end of the second main pipeline (4). One end of the third auxiliary pipeline (9) and one end of the fourth auxiliary pipeline (10) are both connected to the other end of the third main pipeline (5). The other end of the third auxiliary pipeline (9) and the other end of the fourth auxiliary pipeline (10) are both connected to the other end of the fourth main pipeline (6). A nitrogen pump (11) and a first solenoid valve (12) are connected in series on the first auxiliary pipeline (7). A compressor (13) and a second solenoid valve (14) are connected in series on the second auxiliary pipeline (8). An electronic expansion valve (15) and a third solenoid valve (16) are connected in series on the third auxiliary pipeline (9). A fourth solenoid valve (17) is connected in series on the fourth auxiliary pipeline (10).

2. The data center composite cooling device according to claim 1, characterized in that, The air-cooled evaporator (1) is connected to a centrifugal fan (18).

3. The data center composite cooling device according to claim 1, characterized in that, The air-cooled condenser (2) is connected to an axial flow fan (19).

4. The data center composite cooling device according to claim 1, characterized in that, A low-pressure controller (20) is connected in series on the first main pipeline (3) or the second auxiliary pipeline (8), and a high-pressure controller (21) is connected in series on the second main pipeline (4) or the second auxiliary pipeline (8). The low-pressure controller (20) is located on the side near the air inlet of the compressor (13), and the high-pressure controller (21) is located on the side near the air outlet of the compressor (13).

5. The data center composite cooling device according to claim 1, characterized in that, A liquid reservoir (22) is connected in series on the fourth main pipeline (6).

6. The data center composite cooling device according to claim 1, characterized in that, A dryer filter (23) is connected in series on the fourth main pipeline (6).

7. The data center composite cooling device according to claim 1, characterized in that, Both the second main pipeline (4) and the fourth main pipeline (6) are connected in series with right-angle shut-off valves (24).

Images