CDU capable of being connected in series

Abstract

The utility model discloses a CDU capable of being connected in series. The CDU comprises a main water inlet pipe, a plurality of first branch pipes are connected to the main water inlet pipe in the first direction, a first adjusting piece is arranged on each first branch pipe, a plurality of second branch pipes are connected to the main water inlet pipe in the second direction, and a second adjusting piece is arranged on each second branch pipe; the main water outlet pipe is connected with a plurality of third branch pipes in the first direction, each third branch pipe is provided with a third adjusting piece, the main water outlet pipe is connected with a plurality of fourth branch pipes in the second direction, and each fourth branch pipe is provided with a fourth adjusting piece. A plurality of branch pipes are respectively arranged on the main water inlet pipe and the main water outlet pipe in the first direction and the second direction, the first direction can be the extending direction of the horizontal pipe section, and the second direction can be the extending direction of the vertical pipe section, so that the number of the branch pipes is increased on the premise that the CDU has the same occupied area; and the adjusting capability of the CDU is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of data center equipment cooling technology, and in particular to a serially connectable CDU. Background Technology

[0002] Currently, the CDU (coolant distribution unit) used in the data center cooling industry is a box containing a main inlet pipe and a main outlet pipe. Branch pipes are installed on the straight sections of the main inlet and main outlet pipes, and ball valves are installed on the branch pipes for hydraulic balance adjustment.

[0003] While this type of CDU allows for hydraulic balance adjustment of each branch by regulating the opening of ball valves on the branch pipes, each branch is placed on a horizontal straight section of the main inlet or outlet pipe. When there are many branches, the straight pipe section needs to be lengthened, resulting in a corresponding increase in the unit size and floor space. Furthermore, if a local leak occurs in this type of CDU, the entire CDU unit must be shut down for maintenance, affecting all branches. Utility Model Content

[0004] The purpose of this invention is to provide a CDU that can be connected in series, so that more branch pipes can be arranged under the premise of the same floor space, thereby improving the adjustment capability of the CDU.

[0005] This utility model provides a serially connectable CDU, comprising:

[0006] In the first direction, the main water inlet pipe is connected to a plurality of first branch pipes, each of which is provided with a first adjusting component; in the second direction, the main water inlet pipe is connected to a plurality of second branch pipes, each of which is provided with a second adjusting component.

[0007] In the first direction, the main water outlet pipe is connected to multiple third branch pipes, each of which is equipped with a third adjusting component. In the second direction, the main water outlet pipe is connected to multiple fourth branch pipes, each of which is equipped with a fourth adjusting component.

[0008] In the CDU that can be connected in series as described above, preferably, the main inlet pipe is provided with a plurality of fifth adjusting members, each of the first branch pipes and the main inlet pipe forming a first connection point, and the fifth adjusting member is provided between any two adjacent first connection points.

[0009] In the CDU that can be connected in series as described above, preferably, each second branch pipe forms a second connection point at the connection between it and the main inlet pipe, and the fifth adjusting member is provided between adjacent first connection points and second connection points, and at least one fifth adjusting member is provided between two adjacent second connection points.

[0010] In the CDU that can be connected in series as described above, preferably, each of the third branch pipes forms a third connection point at the connection between it and the main outlet pipe, and a sixth adjusting member is provided between adjacent third connection points.

[0011] In the CDU that can be connected in series as described above, preferably, each of the fourth branch pipes forms a fourth connection point at the connection between it and the main outlet pipe, and a sixth adjusting member is provided between the adjacent third connection point and the fourth connection point, and at least one sixth adjusting member is provided between two adjacent fourth connection points.

[0012] In the CDU that can be connected in series as described above, preferably, the fifth adjusting member is provided between the inlet end of the main water inlet pipe and the second connection point closest to the inlet end of the main water inlet pipe, and the sixth adjusting member is provided between the inlet end of the main water outlet pipe and the fourth connection point closest to the inlet end of the main water outlet pipe.

[0013] In the CDU that can be connected in series as described above, preferably, one end of the second branch pipe closest to the inlet end of the main water inlet pipe is connected to the main water inlet pipe, and the other end of the second branch pipe is connected to the temperature control device.

[0014] In the CDU that can be connected in series as described above, preferably, a seventh adjusting element is provided between the second branch pipe closest to the inlet end of the main water inlet pipe and the temperature control device.

[0015] In the CDU that can be connected in series as described above, preferably, one end of the third branch pipe closest to the outlet end of the main water outlet pipe is connected to the main water outlet pipe, and the other end of the third branch pipe is connected to a temperature control device.

[0016] In the CDU that can be connected in series as described above, preferably, an eighth regulating element is provided between the third branch pipe closest to the outlet end of the main water outlet pipe and the temperature control device.

[0017] Compared with the prior art, this utility model sets multiple branch pipes in a first direction and a second direction on the main inlet pipe and the main outlet pipe respectively. The first direction can be the extension direction of the horizontal pipe section of the main inlet pipe and the main outlet pipe, and the second direction can be the extension direction of the vertical pipe section of the main inlet pipe and the main outlet pipe. This increases the number of branch pipes while maintaining the same floor space for the CDU, effectively improving the CDU's adjustment capability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a single CDU provided in an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of multiple CDUs connected in series according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of multiple CDUs connected in series according to another embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 10-Main water inlet pipe, 11-First branch pipe, 12-Second branch pipe, 13-First adjusting component, 14-Second adjusting component, 15-Fifth adjusting component, 16-Seventh adjusting component;

[0023] 20-Main outlet pipe, 21-Third branch pipe, 22-Fourth branch pipe, 23-Third adjusting component, 24-Fourth adjusting component, 25-Sixth adjusting component, 26-Eighth adjusting component;

[0024] 30 - Main water inlet pipe for building HVAC;

[0025] 40 - Main water outlet pipe for building HVAC;

[0026] 50 - Temperature control equipment;

[0027] D1 - First direction, D2 - Second direction;

[0028] L1 - First connection point, L2 - Second connection point, L3 - Third connection point, L4 - Fourth connection point. Detailed Implementation

[0029] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] Reference Figure 1 As shown, this utility model provides a CDU that can be connected in series, including a main inlet pipe 10 and a main outlet pipe 20, wherein:

[0031] In the first direction D1, multiple first branch pipes 11 are connected to the main water inlet pipe 10. The first direction D1 is horizontal, that is, multiple first branch pipes 11 are provided on the horizontal section of the main water inlet pipe 10. Each first branch pipe 11 is provided with a first adjusting component 13. The first adjusting component 13 is used to adjust the connection between the first branch pipe 11 and the main water inlet pipe 10. When a first branch pipe 11 leaks, the connection between the first branch pipe 11 and the main water inlet pipe 10 can be cut off by the first adjusting component 13, while the other first branch pipes 11 and the main water inlet pipe 10 still maintain a normal connection. Only the first branch pipe 11 needs to be maintained and repaired.

[0032] In the second direction D2, multiple second branch pipes 12 are connected to the main water inlet pipe 10. The second direction D2 is a vertical direction perpendicular to the first direction D1. That is, multiple second branch pipes 12 are provided on the vertical pipe section of the main water inlet pipe 10. Each second branch pipe 12 is provided with a second adjusting component 14. The second adjusting component 14 is used to adjust the connection between the second branch pipe 12 and the main water inlet pipe 10. When a second branch pipe 12 leaks, the connection between the second branch pipe 12 and the main water inlet pipe 10 can be cut off by the second adjusting component 14. The other second branch pipes 12 are still in normal working condition. Only the second branch pipe 12 that has leaked needs to be maintained and repaired.

[0033] Similarly, multiple third branch pipes 21 are installed on the horizontal section of the main outlet pipe 20, and each third branch pipe 21 is equipped with a third adjusting component 23. Multiple fourth branch pipes 22 are installed on the vertical section of the main outlet pipe 20, and each fourth branch pipe 22 is equipped with a fourth adjusting component 24. The third adjusting component 23 is used to adjust the connection between the third branch pipe 21 and the main outlet pipe 20, and the fourth adjusting component 24 is used to adjust the connection between the fourth branch pipe 22 and the main outlet pipe 20. When a leak occurs in a third branch pipe 21 or a fourth branch pipe 22, only the corresponding third adjusting component 23 or fourth adjusting component 24 needs to be adjusted to cut off the connection between the third branch pipe 21 or the fourth branch pipe 22 and the main outlet pipe 20. The other third branch pipes 21 or fourth branch pipes 22 continue to operate normally, and only the leaking third branch pipe 21 or fourth branch pipe 22 needs to be repaired.

[0034] Compared to existing CDUs, the CDU provided in this application, when installed in a cabinet of the same volume, optimizes space utilization by installing multiple second branch pipes 12 and multiple fourth branch pipes 22 on the vertical sections of the main inlet pipe 10 and the main outlet pipe 20, respectively. This optimized layout allows for the installation of more branch pipes within a limited space, increasing the system's adjustment flexibility and efficiency. The CDU can provide more coolant distribution points without increasing the additional floor space, which is particularly important for space-constrained data centers. For CDU units, increasing the number of branch pipes and adjustment points enhances the CDU's adjustment capabilities. More branch pipes mean more precise control over coolant distribution, thereby more effectively meeting the cooling needs of different areas within the data center.

[0035] The CDUs in this application can be connected in series to further enhance their regulation capability, as described above. Figure 2 As shown, two or more CDU units are connected in series. The CDU units at both ends are connected to the main inlet pipe 30 and the main outlet pipe 40 of the building HVAC system, respectively. When a branch pipe of a CDU unit leaks, it is only necessary to cut off the connection between the leaking branch pipe and the main inlet pipe 10 or the main outlet pipe 20. The entire unit does not need to be stopped, which is convenient for maintenance.

[0036] When a leak occurs in a first branch pipe 11 or a second branch pipe 12, after the connection between the first branch pipe 11 or the second branch pipe 12 and the main water inlet pipe 10 is cut off, in order to ensure that the other first branch pipes 11 and second branch pipes 12 can still work normally, in the embodiments provided in this application, a plurality of fifth adjusting members 15 are provided on the main water inlet pipe 10. A first connection point L1 is formed at the connection between each first branch pipe 11 and the main water inlet pipe 10, and a second connection point L2 is formed at the connection between each second branch pipe 12 and the main water inlet pipe 10. A fifth adjusting member 15 is provided between two adjacent first connection points L1, and a fifth adjusting member 15 is provided between adjacent first connection points L1 and second connection points L2. At least one fifth adjusting member is provided between two adjacent second connection points L2. When a leak occurs at any of the first connection points L1 or the second connection points L2 on the main inlet pipe 10, the two fifth adjustment components 15 adjacent to the first connection point L1 or the second connection point L2 can be adjusted to cut off the conduction at that connection point, while other connection points remain connected, which will not affect the continued operation of other branch pipes and effectively improves the adjustment capability of the CDU unit.

[0037] Similar to the main inlet pipe 10, each third branch pipe 21 forms a third connection point L3 at its connection with the main outlet pipe 20, and each fourth branch pipe 22 forms a fourth connection point L4 at its connection with the main outlet pipe 20. A sixth adjusting element 25 is provided between two adjacent third connection points L3, between adjacent third connection points L3 and fourth connection points L4, and between at least one sixth adjusting element 25 between two adjacent fourth connection points L4. When a leak occurs at any third connection point L3 or fourth connection point L4 on the main outlet pipe 20, the two sixth adjusting elements 25 adjacent to that third connection point L3 or fourth connection point L4 can be adjusted to cut off the conduction at that connection point, while other connection points remain connected, without affecting the continued operation of other branch pipes, further improving the regulation capability of the CDU unit.

[0038] A fifth adjusting member 15 is also provided between the inlet end of the main water inlet pipe 10 and the second connection point L2 closest to the inlet end of the main water inlet pipe 10. When a leak occurs at the second connection point L2 closest to the inlet end of the main water inlet pipe 10, the connection between the second branch pipe 12 at this connection point and the main water inlet pipe 10 needs to be cut off. Therefore, the fifth adjusting member 15 needs to be provided on both sides of the second connection point L2 to achieve the corresponding adjustment. Similarly, a sixth adjusting member 25 is provided between the inlet end of the main water outlet pipe 20 and the fourth connection point L4 closest to the inlet end of the main water outlet pipe 20. When a leak occurs at the fourth connection point L4 closest to the inlet end of the main water outlet pipe 20, the connection between the fourth branch pipe 22 at this connection point and the main water outlet pipe 20 needs to be cut off. Therefore, the sixth adjusting member 25 needs to be provided on both sides of the fourth connection point L4 to achieve the corresponding adjustment.

[0039] In the embodiments provided in this application, when multiple CDUs are connected in series, one end of the second branch pipe 12 closest to the inlet of the main inlet pipe 10 is connected to the main inlet pipe 10, and the other end of the second branch pipe 12 is connected to the temperature control device 50. This ensures that the coolant can flow directly from the main inlet pipe 10 into the second branch pipe 12, allowing the coolant to flow from the main inlet pipe 10 through the second branch pipe 12 to the temperature control device 50. This facilitates the temperature control device 50 in regulating the coolant temperature, ensuring that the equipment in the data center operates at a suitable temperature, thereby improving the efficiency and reliability of the equipment to meet the temperature control requirements in data centers or other application scenarios. Because the second branch pipe 12 is close to the inlet of the main inlet pipe 10, it helps to achieve hydraulic balance, allowing for more efficient distribution of coolant and reducing pressure loss and flow unevenness. Furthermore, a seventh regulating member 16 is provided between the second branch pipe 12 and the temperature control device 50, which is used to regulate the flow rate of the coolant entering the temperature control device 50.

[0040] Similarly, when multiple CDUs are connected in series, one end of the third branch pipe 21, closest to the outlet end of the main outlet pipe 20, is connected to the main outlet pipe 20, and the other end of the third branch pipe 21 is connected to the temperature control device 50. This ensures that coolant can flow directly from the main outlet pipe 20 into the third branch pipe 21, allowing the coolant to flow from the main outlet pipe 20 through the third branch pipe 21 to the temperature control device 50, so that the temperature control device 50 can regulate the coolant temperature. An eighth regulating element 26 is provided between the third branch pipe 21 and the temperature control device 50, which is used to regulate the flow rate of coolant entering the temperature control device 50.

[0041] In the embodiments provided in this application, the first regulating component 13, the second regulating component 14, the third regulating component 23, the fourth regulating component 24, the fifth regulating component 15, the sixth regulating component 25, the seventh regulating component 16, and the eighth regulating component 26 can all be used for hydraulic balance regulation, preferably ball valves, because ball valves have good sealing performance and adjustment accuracy. By installing ball valves on the main inlet pipe 10, the main outlet pipe 20, and each branch pipe, operators can adjust the water flow according to actual needs to achieve precise control of hydraulic balance. This is crucial for ensuring the cooling effect of each air conditioning terminal in the data center, avoiding overcooling or overheating in certain areas, and ensuring uniform cooling of the entire system.

[0042] In other embodiments, other valves may be selected as long as they can control the flow rate of the coolant flowing through the branch pipe; no limitation is made here.

[0043] Based on the above embodiments, when multiple CDUs are connected in series, refer to Figure 2 As shown, one CDU unit can be connected in series to the next CDU unit, and the CDU units at both ends can be connected to the main building HVAC inlet pipe 30 and the main building HVAC outlet pipe 40, respectively; see reference. Figure 3 As shown, one end of the CDU unit can be connected to the main HVAC inlet pipe 30 and the main HVAC outlet pipe 40, while the other end of the CDU is not connected to the main HVAC inlet pipe 30 and the main HVAC outlet pipe 40; the corresponding ports can be blocked with blind flanges. In a series-connected CDU unit group, with both ends connected to the main HVAC inlet pipe 30 and the main HVAC outlet pipe 40, in the event of a local leak, the ball valves before and after the branch pipe can be closed, while other branch pipes can continue to operate, thereby improving the reliability of data center air conditioning and IT equipment operation.

[0044] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A serially connectable CDU, characterized in that, include: In the first direction, the main water inlet pipe is connected to a plurality of first branch pipes, each of which is provided with a first adjusting component; in the second direction, the main water inlet pipe is connected to a plurality of second branch pipes, each of which is provided with a second adjusting component. In the first direction, the main water outlet pipe is connected to multiple third branch pipes, each of which is equipped with a third adjusting component. In the second direction, the main water outlet pipe is connected to multiple fourth branch pipes, each of which is equipped with a fourth adjusting component.

2. The serially connectable CDU according to claim 1, characterized in that, The main water inlet pipe is provided with a plurality of fifth adjusting components. Each connection between the first branch pipe and the main water inlet pipe forms a first connection point, and the fifth adjusting component is provided between any two adjacent first connection points.

3. The serially connectable CDU according to claim 2, characterized in that, Each second branch pipe forms a second connection point at the connection with the main water inlet pipe, and the fifth adjusting member is provided between adjacent first connection points and second connection points, and there is at least one fifth adjusting member between two adjacent second connection points.

4. The serially connectable CDU according to claim 3, characterized in that, The main outlet pipe is equipped with multiple sixth adjusting components. Each connection between the third branch pipe and the main outlet pipe forms a third connection point, and the sixth adjusting component is provided between adjacent third connection points.

5. The serially connectable CDU according to claim 4, characterized in that, Each of the fourth branch pipes forms a fourth connection point at the connection with the main outlet pipe. The sixth adjusting member is provided between the adjacent third connection point and the fourth connection point, and there is at least one sixth adjusting member between two adjacent fourth connection points.

6. The serially connectable CDU according to claim 5, characterized in that, The fifth adjusting member is provided between the inlet end of the main water inlet pipe and the second connection point closest to the inlet end of the main water inlet pipe, and the sixth adjusting member is provided between the inlet end of the main water outlet pipe and the fourth connection point closest to the inlet end of the main water outlet pipe.

7. The serially connectable CDU according to claim 1, characterized in that, One end of the second branch pipe closest to the inlet of the main water inlet pipe is connected to the main water inlet pipe, and the other end of the second branch pipe is connected to the temperature control device.

8. The serially connectable CDU according to claim 7, characterized in that, A seventh adjusting element is provided between the second branch pipe closest to the inlet end of the main water inlet pipe and the temperature control device.

9. The serially connectable CDU according to claim 1, characterized in that, One end of the third branch pipe, which is closest to the outlet end of the main water outlet pipe, is connected to the main water outlet pipe, and the other end of the third branch pipe is connected to the temperature control device.

10. The serially connectable CDU according to claim 9, characterized in that, An eighth adjusting element is provided between the third branch pipe, which is closest to the outlet end of the main water outlet pipe, and the temperature control device.

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