IDC cabinet heat dissipation structure and air conditioning system
By setting up main air intake and main air exhaust ducts in the IDC server racks and combining them with the ejector principle to optimize airflow organization, the problem of high energy consumption in IDC server room air conditioning systems has been solved, achieving efficient heat dissipation and improved space utilization.
Patent Information
- Application Number
- CN202410569603.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-11-11
AI Technical Summary
Existing IDC data center air conditioning systems have high energy consumption, traditional energy-saving solutions are limited, and the airflow organization design of the air conditioning system is insufficient, resulting in low heat dissipation efficiency and insufficient equipment security.
It adopts a main air inlet and main air outlet structure, combined with a jet valve to provide high-pressure airflow, forming an ejector principle, optimizing airflow organization, and improving heat dissipation.
By accelerating the flow of cryogenic gas using the ejector principle, heat dissipation is improved, flow resistance is reduced, gas heat exchange efficiency is enhanced, temperature distribution is made more uniform, equipment interference is reduced, and space utilization is improved.
Smart Images
Figure CN120935978A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of data center heat dissipation, and in particular to an IDC cabinet heat dissipation structure and air conditioning system. Background Technology
[0002] With the development of the Internet, IDC (Internet Data Center) has become an indispensable and important part of the Internet industry.
[0003] With the rapid advancement of information technology, the development of IDC (Internet Data Center) is accelerating. Traditional IDC data centers often experience discrepancies between early planning and subsequent business expansion. The upgrading of highly integrated servers and high-power data storage devices within racks has led to a significant increase in heat dissipation per unit area, placing increasingly stringent demands on the data center environment and resulting in a substantial increase in air conditioning system energy consumption. It is estimated that air conditioning equipment accounts for approximately 45% of the total energy consumption of an IDC data center. The airflow organization design of the air conditioning system is one of the key factors affecting the energy consumption of IDC data center air conditioning systems. By rationally optimizing the airflow organization within the racks, localized temperature hotspots can be reduced, improving the cooling efficiency of the air conditioning system, reducing power consumption, and ensuring the safe and reliable operation of equipment.
[0004] In existing technologies, most energy-saving solutions for IDC air conditioning can be mainly divided into the following categories:
[0005] 1. Lower-cost cooling sources, including natural low-temperature water such as lake water and seawater, or more energy-efficient air conditioning equipment. However, the former is constrained by the location of the IDC, while the latter is constrained by the bottleneck of air conditioning technology development and has no room for improvement.
[0006] 2. Stronger natural heat dissipation capabilities, including providing lower ambient temperatures or stronger thermal radiation capabilities. However, the former also restricts the location of the IDC, while the latter places extremely high demands on the selection of materials and the design of the structure.
[0007] Therefore, how to provide a low-cost energy-saving solution for IDC air conditioning systems is a technical problem that those skilled in the art hope to solve. Summary of the Invention
[0008] The purpose of this invention is to provide an IDC cabinet heat dissipation structure and air conditioning system. By setting up a main air inlet duct and a main air outlet duct, and assuming the equipment cavity within them, combined with the high-pressure airflow provided by the jet valve, an ejector principle can be formed, thereby accelerating the passage of low-temperature gas in the main air inlet duct through the equipment cavity and improving the heat dissipation effect.
[0009] The objective of this invention can be achieved through the following technical solutions:
[0010] An IDC (Internet Data Center) server rack heat dissipation structure includes:
[0011] The main air intake duct is located on the first side of the cabinet, with the bottom being the air inlet, the top being closed, and the side having multiple first openings that communicate with the cabinet's equipment chambers.
[0012] The main air duct is located on the second side of the cabinet. The bottom is closed and the top is the air outlet. The side has multiple second openings that communicate with the equipment cavity of the cabinet. The first side and the second side are two opposite sides of the cabinet.
[0013] The injection valve is located at the bottom of the main air outlet duct, with the injection port direction parallel to the axis of the main air outlet duct. It is used to reduce the air pressure in the main air outlet duct so as to drive the gas in the main air inlet duct through the equipment cavity into the main air outlet duct.
[0014] The main air outlet duct bends toward the equipment cavity, and the projection of the air outlet on the horizontal plane is completely within the projection area of the equipment cavity on the horizontal plane.
[0015] The main air intake duct also includes one or more removable first insert plates, which are used to block the first opening when loaded.
[0016] The main air outlet duct also includes one or more removable second inserts, which are used to block the second opening when installed.
[0017] The first opening and the second opening are aligned.
[0018] The direction of the injection port of the injection valve coincides with the axis of the main air outlet duct.
[0019] The side of the main air outlet duct with a second opening is divided into multiple side plates by the second opening, and each side plate is arranged from top to bottom closer to the equipment cavity.
[0020] The inclination angle of the side plate is greater than 2 degrees.
[0021] An IDC air conditioning system includes an air conditioning unit and multiple cabinets. The cabinets include heat dissipation structures as described above. The outlet of the air conditioning unit is connected to the air inlet of each heat dissipation structure, and the inlet is connected to the air outlet of each heat dissipation structure.
[0022] The air conditioning unit's outlet and each heat dissipation structure's air inlet are equipped with a regulating valve for adjusting the airflow.
[0023] Compared with the prior art, the present invention has the following beneficial effects:
[0024] 1. By setting up a main air inlet duct and a main air outlet duct, and placing the equipment cavity inside, combined with the high-pressure airflow provided by the jet valve, an ejector principle can be formed, thereby accelerating the passage of low-temperature gas in the main air inlet duct through the equipment cavity and improving the heat dissipation effect.
[0025] 2. The main air outlet bends towards the equipment cavity, thus placing the air outlet at the top of the equipment cavity. This facilitates the connection of the air conditioning unit, avoids interference with equipment operation, and improves the utilization rate of space in the IDC server room. On the other hand, it also forms a gas storage cavity, thereby improving the heat exchange efficiency of the gas and making the gas temperature more uniform.
[0026] 3. The first and second openings are aligned to reduce flow resistance and thus improve ejection efficiency.
[0027] 4. The side plates are gradually positioned closer to the equipment cavity from top to bottom. By adjusting the tilt angle, the flow rate in each equipment cavity can be made uniform, thereby improving the utilization rate of cryogenic gas. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the heat dissipation structure of the present invention;
[0029] Figure 2 A schematic diagram of the side wall structure of the main air outlet duct;
[0030] Figure 3 This is a schematic diagram of an air conditioning system;
[0031] The components are: 1. Main air inlet duct, 2. Equipment cavity, 3. Main air outlet duct, 4. Jet valve, 5. Cabinet, 6. Air conditioning unit, 1-1. Air inlet, 3-1. Air outlet, 3-2. Second opening, 3-3. Side panel. Detailed Implementation
[0032] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.
[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0034] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "proximal," "distal," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities in the International System of Units (SI), or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.
[0035] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0036] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0037] An IDC rack heat dissipation structure, such as Figure 1 As shown, it includes:
[0038] The main air intake duct 1 is located on the first side of the cabinet, with the bottom being the air inlet 1-1, the top being closed, and the side having multiple first openings that communicate with the cabinet equipment cavity 2.
[0039] The main air duct 3 is located on the second side of the cabinet. The bottom is closed and the top is the air outlet 3-1. The side has multiple second openings 3-2 that communicate with the equipment cavity 2 of the cabinet. The first side and the second side are two opposite sides of the cabinet.
[0040] The injection valve 4 is located at the bottom of the main air outlet duct 3, with the injection port direction parallel to the axis of the main air outlet duct 3. It is used to reduce the air pressure in the main air outlet duct 3 so as to drive the gas in the main air inlet duct 1 through the equipment cavity 2 into the main air outlet duct 3.
[0041] By setting up a main air inlet duct 1 and a main air outlet duct 3, and placing the equipment cavity 2 inside, combined with the high-pressure airflow provided by the jet valve 4, an ejector principle can be formed, thereby accelerating the passage of low-temperature gas in the main air inlet duct 1 through the equipment cavity 2 and improving the heat dissipation effect.
[0042] In some embodiments, such as Figure 1 As shown, the main air outlet duct 3 bends towards the equipment cavity 2, and the projection of the air outlet 3-1 on the horizontal plane is completely within the projection area of the equipment cavity 2 on the horizontal plane. The main air outlet duct 3 bends towards the equipment cavity 2, thus positioning the air outlet 3-1 at the top of the equipment cavity 2. This facilitates the connection of the air conditioning unit 6, avoiding interference with equipment operation and improving the utilization of space within the IDC server room. Furthermore, it also forms a temporary gas storage chamber, thereby improving the heat exchange efficiency of the gas and resulting in a more uniform gas temperature.
[0043] In some embodiments, the main air inlet duct 1 further includes one or more removable first insert plates, which, when installed, are used to block the first opening. Correspondingly, the main air outlet duct 3 further includes one or more removable second insert plates, which, when installed, are used to block the second opening 3-2. Furthermore, the first opening and the second opening 3-2 are aligned to reduce flow resistance, thereby improving ejection efficiency.
[0044] In some embodiments, the direction of the injection port of the injection valve 4 coincides with the axis of the main air outlet duct 3. Of course, in other embodiments, the axis of the injection port of the injection valve 4 may be located inside the axis of the main air outlet duct 3, wherein the inside is the side closer to the equipment cavity 2.
[0045] In this embodiment, the side of the main air outlet duct 3 with the second opening 3-2 is divided into multiple side plates 3-3 by the second opening 3-2, such as... Figure 2 As shown, each side plate 3-3 is arranged gradually from top to bottom closer to the equipment cavity 2. By adjusting the tilt angle, the flow rate of each equipment cavity 2 can be made uniform, thereby improving the utilization rate of the low-temperature gas. In this embodiment, the first opening and the second opening 3-2 are still aligned. Alignment specifically means that the projection lines of the first opening and the second opening 3-2 in the numerical direction coincide.
[0046] Furthermore, the tilt angle of side plate 3-3 can be set to adjustable, specifically the angle relative to the numerical direction, allowing for adjustment according to actual conditions to achieve uniform flow velocity and better ejection effect. Of course, in some other embodiments, it can also be set to a fixed value, resulting in a more stable structure. Specifically, the tilt angle can be set as follows:
[0047]
[0048] Where: α is the tilt angle, A and B are coefficients, S is the area of the horizontal cross-section of the main air outlet duct 3 located at the top of the side plate 3-3, h is the height of the second opening 3-2, and P is the outlet pressure of the jet valve 4. Furthermore, the tilt angle should be at least greater than 2 degrees.
[0049] Through experimental verification, it has been found that with the inclined design, the flow rate can be increased by 50% under the same outlet pressure of the injection valve 4.
[0050] Furthermore, based on the aforementioned heat dissipation structure, an IDC air conditioning system can be designed, such as... Figure 3 As shown, the system includes an air conditioning unit 6 and multiple cabinets. The cabinets include the heat dissipation structure described above. The outlet of the air conditioning unit 6 is connected to the air inlet 1-1 of each heat dissipation structure, and the inlet is connected to the air outlet 3-1 of each heat dissipation structure. A regulating valve for adjusting the flow rate is provided between the outlet of the air conditioning unit 6 and the air inlet 1-1 of each heat dissipation structure.
[0051] In this application, a specific air duct is set inside the cabinet to receive low-temperature gas provided by the air conditioning host 6. The heat dissipation holes on the cabinet are sealed and modified to form a nearly closed air duct between the server and the front door panel of the cabinet. After the heat of the equipment is carried away, the hot air is discharged from the top of the cabinet and returned to the air conditioning host 6.
[0052] This design optimizes airflow within the server rack. Cool air is delivered directly from below the rack to a sealed channel. After the cool air carries away heat from the equipment, the hot air leaves the rack and returns to the air conditioning unit. At this point, the computer room environment maintains a higher temperature, improving the cooling efficiency of the air conditioning system. The main principle behind this optimized airflow isolating hot and cold air. This isolation prevents the mixing of cool air from the air conditioning system with the hot air generated by the equipment, thus ensuring a constant intake air temperature.
Claims
1. A heat dissipation structure for an IDC (Internet Data Center) server rack, characterized in that, include: The main air intake duct is located on the first side of the cabinet, with the bottom being the air inlet, the top being closed, and the side having multiple first openings that communicate with the cabinet's equipment chambers. The main air duct is located on the second side of the cabinet. The bottom is closed and the top is the air outlet. The side has multiple second openings that communicate with the equipment cavity of the cabinet. The first side and the second side are two opposite sides of the cabinet. The injection valve is located at the bottom of the main air outlet duct, with the injection port direction parallel to the axis of the main air outlet duct. It is used to reduce the air pressure in the main air outlet duct so as to drive the gas in the main air inlet duct through the equipment cavity into the main air outlet duct.
2. The heat dissipation structure for an IDC server rack according to claim 1, characterized in that, The main air outlet duct bends toward the equipment cavity, and the projection of the air outlet on the horizontal plane is completely within the projection area of the equipment cavity on the horizontal plane.
3. The heat dissipation structure for an IDC server rack according to claim 1, characterized in that, The main air intake duct also includes one or more removable first insert plates, which are used to block the first opening when loaded.
4. The heat dissipation structure for an IDC server rack according to claim 3, characterized in that, The main air outlet duct also includes one or more removable second inserts, which are used to block the second opening when installed.
5. The heat dissipation structure for an IDC server rack according to claim 1, characterized in that, The first opening and the second opening are aligned.
6. The heat dissipation structure of an IDC server rack according to claim 1, characterized in that, The direction of the injection port of the injection valve coincides with the axis of the main air outlet duct.
7. The heat dissipation structure for an IDC server rack according to claim 1, characterized in that, The side of the main air outlet duct with a second opening is divided into multiple side plates by the second opening, and each side plate is arranged from top to bottom closer to the equipment cavity.
8. The heat dissipation structure for an IDC server rack according to claim 7, characterized in that, The inclination angle of the side plate is greater than 2 degrees.
9. An IDC air conditioning system, comprising an air conditioning unit and multiple server racks, characterized in that, The cabinet includes a heat dissipation structure as described in any one of claims 1-8, wherein the outlet of the air conditioning unit is connected to the air inlet of each heat dissipation structure, and the inlet is connected to the air outlet of each heat dissipation structure.
10. An air conditioning system according to claim 9, characterized in that, The air conditioning unit's outlet and each heat dissipation structure's air inlet are equipped with a regulating valve for adjusting the airflow.