CN105848452A - Four-in-one heat radiation system of data center - Google Patents

Abstract

The invention provides a four-in-one heat radiation system of a data center. The four-in-one heat radiation system comprises a sealed hot cabinet (3), an underground air supply channel (5), a first heat pipe (6), a hot air pipeline (7), a heat pipe air conditioner (8), a return air pipeline (9), a machine room air conditioner (10) and an air supply pipeline (11). The evaporation section of the first heat pipe (6) is fit with the server (4) of a machine cabinet (1). The cooling section of the first heat pipe (6) is arranged in the sealed hot cabinet (3). One end of the hot air pipeline (7) is connected with the sealed hot cabinet (3) of the machine cabinet (1), and the other end is connected with the heat pipe air conditioner (8). The return air pipeline (9) is connected between the heat pipe air conditioner (8) and the machine room air conditioner (10). The air supply pipeline (11) is connected between the machine room air conditioner (10) and the underground air supply channel (5). The underground air supply channel (5) is provided with a second air supply port which is connected with the sealed hot cabinet (3). According to the heat radiation system of the data center, heat is concentrated so that the heat radiation effect is great and energy consumption is low.

Description

A four-in-one cooling system for data centers

technical field

The invention relates to a heat dissipation system, in particular to a data center heat dissipation system, and belongs to the technical field of heat dissipation and heat pipes in computer rooms.

Background technique

The data center (also known as the computer room) has become an important part of the development of the national economy and the main pillar to promote the informatization and digitization of the national science and technology industry. With the development of the scale and integration of data centers, the power density of IT equipment in servers is increasing day by day, and the heat density is increasing rapidly. The heat dissipation and energy consumption problems of data centers are getting more and more attention. Taking 100 cabinets filled with rack servers as an example, the total power consumption can reach 50 kilowatts, and the heat dissipation and cooling system also needs to be equivalent to the power consumption of the computer hardware itself. It will cost about 550,000 yuan in electricity bills to operate this rack server without failure for a year. The power consumption of the data center is increasing at a rate of 15% to 20% every year.

At present, China is facing the contradiction between rapid economic growth and the carrying capacity of environmental resources. Energy conservation and environmental protection have become the themes of the development and upgrading of many pillar industries of our economy. The construction and development of data centers also need to move towards more energy-saving, environmental protection and green operation. Traditional thermal management technologies in data centers, such as air forced convection heat transfer, single-phase liquid cooling, etc., have unsatisfactory effects and high costs due to insufficient heat transfer capacity or conditional constraints. As a new type of heat management technology, heat pipes have had unique and extensive applications in national economic life, especially in the field of electronic information. A heat pipe is a heat transfer element with superconducting heat transfer through phase change. It transfers heat through the latent heat generated by the phase change of the working medium in the tube. Its equivalent thermal conductivity is several hundred of that of general metal materials. Times or even thousands of times, known as the thermal "superconductor".

Chinese patent (application number 201410768307.6) discloses an energy-saving cooling system for data centers based on heat pipe technology, which avoids the mixing of hot and cold air in the computer room, reduces the temperature of the hot air mass discharged from the outlet at the rear of the cabinet, and improves the temperature of the computer room. Overall cooling efficiency, simple system structure, easy installation and maintenance. However, since the heat pipes are arranged in the hot air at the rear of the cabinet and are not in direct contact with the heat source of the server, the heat dissipation effect needs to be further improved. In addition, since the system does not use an external cold source, it mainly relies on the computer room air-conditioning system for cooling, so the PUE (Power Usage Efficiency) index of the patent is limited, and there is still room for further improvement and improvement.

Contents of the invention

The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, the present invention embeds the heat pipe inside the server, directly contacts the heat source of the server, and combines heat pipe air conditioning technology, cold aisle sealing technology and underground optimized air supply technology , forming a complete heat concentration and closed internal circulation loop system, providing a data center cooling system with better cooling effect and lower energy consumption.

The technical scheme adopted in the present invention is:

A four-in-one heat dissipation system for a data center, including a closed heating cabinet, an underground air supply channel, a first heat pipe, a hot air pipeline, a heat pipe air conditioner, a return air pipeline, a computer room air conditioner, and an air supply pipeline; the closed heating cabinet , the underground air supply channel, the first heat pipe, the hot air pipeline, the heat pipe air conditioner, the return air pipeline, the computer room air conditioner, and the air supply pipeline are not connected to the ambient air in the data center; the closed heating cabinet is on the side of the cabinet, And it is not connected with the cabinet, the evaporation section of the first heat pipe is attached to the server in the cabinet, the cooling section of the first heat pipe is located in the closed heating cabinet; one end of the hot air pipeline is connected to the air outlet of the cabinet and the air outlet of the closed heating cabinet The other end is connected to the air inlet on the hot air side of the heat pipe air conditioner. The return air pipe is connected between the air outlet on the hot air side of the heat pipe air conditioner and the air inlet of the computer room air conditioner. One end of the air supply pipe is connected to the air outlet of the computer room air conditioner. The other end communicates with the underground air supply channel; the underground air supply channel is provided with a second air supply port that communicates with the bottom of the closed heating cabinet.

The heat dissipation system also includes a closed freezer, the closed freezer is on one side of the cabinet and communicates with the cabinet, the underground air supply channel is provided with a first air supply port connected to the bottom of the closed freezer, and the closed freezer is not connected to the data center. Ambient air connection in .

The width of the closed refrigerator is 5-10mm larger than that of the cabinet, and the height of the closed refrigerator is equal to the height of the highest server in the cabinet.

The air supply pipeline is in the underground air supply channel, including a main pipe and a branch pipe, the main pipe is connected to the air outlet of the computer room air conditioner, one end of the branch pipe is connected to the main pipe, the other end of the branch pipe is the air outlet of the branch pipe, and the branch pipes extend in different directions. And send air to the underground air supply channel.

The air outlet of the branch pipe is located at the first air supply port or at the second air supply port.

The number of branch air outlets of the air supply pipeline at the first air outlet farther from the main pipe is greater than the number at the first air outlet closer to the main pipe, and at the second air outlet farther from the main pipe. The quantity is more than the quantity at the second air supply port which is closer to the main pipe.

The connection between the first air supply port and the ground is provided with a first air supply port orifice, the connection between the second air supply port and the ground is provided with a second air supply orifice, and the holes of the first air supply orifice and the second The holes of the orifice plate of the air supply port are all closer to the air outlet of the branch pipe of the air supply pipeline, and the apertures are smaller.

There are two or more cabinets, closed heating cabinets and hot air pipelines, and the cabinets and closed heating cabinets are connected in parallel to the hot air side inlet of the heat pipe air conditioner through the hot air pipelines.

The heat pipe air conditioner includes a second heat pipe. The evaporating section of the second heat pipe is located on the hot air side of the heat pipe air conditioner, and the cooling section is located on the cold air side of the heat pipe air conditioner. The second heat pipe is inclined 5-15 degrees counterclockwise relative to the horizontal direction.

The cooling section of the first heat pipe is bent upward by 5-15 degrees relative to the evaporating section.

The advantage of the present invention compared with prior art is:

1) The first heat pipe of the present invention is directly in contact with the heating part of the server. Compared with the contact between the heat pipe and the hot air, the heat transfer amount and heat transfer efficiency of the heat pipe can be greatly improved. The cooling section of the heat pipe is placed in a closed heating cabinet, and the cabinet rear It is completely isolated and sealed from the closed heating cabinet, and the heating section and cooling section of the heat pipe are completely isolated and sealed, which can further improve the heat transfer efficiency of the heat pipe, thereby improving the cooling and heat dissipation effects of the system.

2) The setting of the first heat pipe in the present invention makes the heat generated by the server heating components in the cabinet mainly transported directly to the condensation section of the heat pipe through the heat pipe. If the heat pipe has excellent performance and large heat transfer, it is possible that the heat dissipation of the heating components does not require cold air flow at all On the one hand, multiple fan parts inside the server can be removed to reduce the operating noise of the server, reduce the huge noise pollution of the data center, and improve the overall comfort of the data center staff; on the other hand, the current fan components can be removed For the air supply system of the first air supply port at the front of the cabinet, the closed refrigerator is removed, and only the second air supply port and the closed heating cabinet designed by the present invention are kept, so that the overall heat dissipation mode of the current data center can be completely changed.

3) In the present invention, the heat pipe air conditioner and the computer room air conditioner are coupled in series in the entire circulation circuit, and the heat pipe air conditioner is located at the front end of the computer room air conditioner, so that the heat discharged from multiple cabinet servers passes through corresponding multi-channel pipes first Converging to the heat pipe air conditioner, the heat pipe air conditioner has become the main force for heat exchange and cooling. The hot air after being cooled by the heat pipe air conditioner continues to flow into the computer room air conditioner, and the air conditioner only needs to cool the remaining part of the heat. When the temperature is very high (such as hot summer), the heat pipe air conditioner does not work at all, but it does not affect the flow of air flow, and the computer room air conditioner becomes the main force for heat exchange and cooling. The series coupling structure relationship between the two, compared with the parallel structure relationship proposed by the latest patent, the heat pipe air conditioner plays a greater role and works longer, so the cooling of the computer room air conditioner is relatively less, and the entire data center The energy saving effect is more obvious.

4) The system of the present invention seals the cold aisle and the hot aisle respectively at the front and rear of the cabinet. The cold aisle closure can directly send 100% cold air into the rack server. On the one hand, the hot aisle closure can prevent the hot air from being exhausted into the computer room to form a mixture of hot and cold air in the computer room. On the other hand, it can gather the hot air for future The centralized heat removal of the coupled heat pipe air conditioner creates conditions. The double sealing of the hot and cold aisles improves the overall heat dissipation efficiency of the machine room and reduces the cooling capacity required for air conditioning.

5) The heat-pipe air conditioner in the present invention can centrally process the heat emitted by the cabinet server, and it directly discharges most of the heat to the outside of the computer room in the form of heat exchange with heat pipes, without introducing humid air outside the computer room. The heat dissipation of the heat pipe air conditioner is unidirectional. When it is working, it can discharge heat from the machine room to the outside of the machine room. Part-time operation can greatly reduce the burden of air-conditioning and refrigeration, reduce the power consumption of air-conditioning and refrigeration, reduce the operating cost of the computer room, and achieve the purpose of energy saving, low carbon and green environmental protection.

6) The cooling system in the present invention proposes for the first time to optimize the underground air supply mode and the air outlet mode on the basis of the existing cold and hot aisle sealing technology, so as to prevent the air flow in the closed freezer from being unequal in air volume and temperature. The uniform phenomenon ensures that each cabinet receives the same amount of cold air at the same temperature in the width direction and height direction, thereby improving the overall heat dissipation efficiency of the computer room.

7) The new four-in-one heat dissipation system in the present invention can more effectively take heat away from the server, and centrally process the heat, improve heat dissipation efficiency, and reduce the power consumption of air-conditioning and cooling in the computer room, which can be used in different seasons and regions. All-weather stable operation can effectively avoid server downtime caused by local overheating problems, and improve the overall computing power and stability of the computer room.

8) The principle of the heat dissipation system in the present invention is simple, the device structure is convenient for installation and maintenance, the requirements for the location and installation conditions of the machine room are very low, the adaptability and versatility are strong, and the heat pipe can be automatically started and operated without additional power And power consumption, low energy consumption but high heat exchange efficiency, so the heat dissipation technology and system can be applied and promoted in data centers of different types and sizes.

Description of drawings

Fig. 1 is the structural schematic diagram of the novel heat dissipation system of the data center of the present invention;

Fig. 2 is a schematic top view of the air supply pipeline and the air supply channel of the data center of the present invention.

detailed description

As shown in Figure 1, a new four-in-one heat dissipation system for a data center includes a closed refrigerator 2, a closed hot cabinet 3, an underground air supply channel 5, a first heat pipe 6, a hot air pipeline 7, a heat pipe air conditioner 8, Return air pipeline 9, computer room air conditioner 10 and air supply pipeline 11 etc. Closed refrigerator 2, closed hot cabinet 3, underground air supply channel 5, first heat pipe 6, hot air pipeline 7, heat pipe air conditioner 8, return air pipeline 9, computer room air conditioner 10 and air supply pipeline 11 are all connected to the data center isolated from ambient air.

There is a cabinet 1 in the data center, and servers 4 are stacked inside the cabinet 1 . The closed refrigerator 2 is located at the front of the cabinet 1 and is openly connected to the front of the cabinet 1, but is isolated and sealed from the ambient air in the machine room. A closed thermal cabinet 3 is located at the rear of the cabinet 1 . The closed refrigerator 2 connects the first air outlet of the underground air supply channel 5 with the front of the server 4, the closed hot cabinet 3 and the rear of the cabinet 1 are completely isolated and sealed, and the two are not connected, and the connection between the two is a steel panel , the plate has a heat pipe hole, the heat pipe hole is used to pass through the pipeline of the first heat pipe 6, and use rubber ring or sealant to realize isolation and sealing, so that the gas cannot flow between the cabinet 1 and the closed heating cabinet 3. The evaporating section of the first heat pipe 6 is close to the server 4, preferably the evaporating section of the first heat pipe 6 is close to the heat generating part of the server 4, and the heat generating part of the server 4 is CPU, north and south bridge chips, memory, etc. The cooling section of the first heat pipe 6 is located in the closed thermal cabinet 3 . One end of the hot air pipeline 7 is connected to the air outlet on the top of the cabinet 1 and the air outlet on the top of the closed heating cabinet 3, and the other end is connected to the air inlet on the hot air side of the heat pipe air conditioner 8. The hot air pipelines 7 of multiple cabinets 1 in the data center are simultaneously connected to the hot air side inlets of the heat pipe air conditioners 8 in parallel. The return air pipeline 9 connects the air outlet of the hot air side of the heat pipe air conditioner 8 and the air inlet of the computer room air conditioner 10 . The air supply pipeline 11 is located in the underground air supply channel 5, one end is connected to the air outlet of the computer room air conditioner 10, and the other end extends in different directions in the underground air supply channel 5, and is sent to the underground air supply channel through the air outlet of the air supply pipeline 11 5 air supply. The cold air 12 that the computer room air conditioner 10 comes out enters in the closed refrigerator 2 after passing through the first air supply port of the underground air supply passage 5, and enters in the closed hot cabinet 3 after passing through the second air supply port of the underground air supply passage 5. The connection between the first air supply port and the ground is provided with a first air supply port orifice, and the connection between the second air supply port and the ground is provided with a second air supply orifice plate. One air outlet hole plate and the second air outlet hole plate respectively make the closed refrigerator 2 communicate with the first air supply port and make the closed hot cabinet 3 communicate with the second air supply port, and the cold air 12 flows in 100% after passing through the closed refrigerator 1 Servers in rack 1.

The heat pipe air conditioner 8 includes a second heat pipe 20, a hot air side, a cold air side, a frequency conversion fan and a control system. The hot air side flows into the high-temperature hot air 17 in the hot air pipeline. Air 19, the evaporation section of the second heat pipe 20 is located on the hot air side, the cooling section is located on the cold air side, and the hot air side and the cold air side are completely isolated and sealed.

The optimized air supply technology includes the optimal adjustment of the length of the existing air supply pipeline 11 and the position of the air outlet, the adjustment of the aperture size and aperture size of the floor air supply orifice (the first air supply orifice and the second air supply orifice). The optimal layout of the location, and the optimal configuration of the width and height of the closed refrigerator 2, etc. As shown in Figure 2, the air supply pipeline 11 is located in the underground air supply channel 5 under the floor, including a main pipe and a branch pipe. The air outlet at the bottom of the computer room air conditioner 10 is connected to the inlet of the main pipe, one end of the branch pipe is connected to the main pipe, and the other end is the air outlet of the branch pipe. , used to supply air to the underground air supply channel 5. Two rows of cabinets 1 are aligned along both sides of the first air supply port (only one cabinet 1 is drawn for each row of cabinets 1 in Figure 2), and the fronts of the two rows of cabinets 1 are placed face to face, and the cold air flows out from the first air supply port Can enter the front portion of two rows of cabinets 1 simultaneously by closing freezer 2 at last. The traditional air supply technology only considers the uniform air supply mode of the underground static pressure box. The design of the air supply pipeline and its branches is based on the concept of uniform airflow field and temperature field in the entire underground, and does not consider the direct flow of cold air through the branch. It is sent to the vicinity of the first air supply outlet, and the design of the air outlet is optimized, and the cooling capacity obtained by servers in different locations is used as the design basis to improve the air supply efficiency. Insufficiency of traditional air supply technology and simplistic design have led to a serious imbalance in the cooling capacity obtained by each row of cabinet servers in the current data center. The air volume is small and the temperature is relatively high; sometimes, the first air supply port close to the computer room air conditioner has a large air volume and low temperature, while the first air supply port far from the computer room air conditioner has a small air volume and high temperature; and every The air volume and air temperature obtained by the servers at different heights in the row of cabinets are also quite different. The present invention optimizes the air supply mode and air outlet mode, and the number of branch air outlets below the first air supply port that is far from the main pipe is more than the number of branch pipe air outlets below the first air supply port that is closer to the main pipe. Similarly, the number of air outlets of the branch pipe below the second air supply port that is farther away from the main pipe is more than the number of air outlets of the branch pipe below the second air supply port that is closer to the main pipe.

As shown in Fig. 2, in the embodiment, the branch pipe includes a first branch pipeline 23 and a second branch pipeline 24. The first branch pipeline 23 on the side is only designed as two pipelines, because it is closer to the main air supply pipeline, and the obtained cold air pressure is higher, and the air temperature is lower; the air outlets of the two pipelines are accurate It is located at the position where 1/4 and 3/4 of the orifice plate of the first air supply port are slightly closer to the center. And the branch pipe air outlet of the second branch pipeline 24 is directly changed to be positioned at the bottom of the first air supply port far away from the main pipe, and the second branch pipeline on each side of the main air supply pipeline is designed as 3 pipelines; The air outlet of the branch pipe in the middle of the pipeline is located in the middle, and the left and right two are accurately located at 1/6 and 5/6 of the orifice plate of the first air supply outlet and slightly closer to the center. Such a structural design can make the cooling capacity obtained by each first air supply port with different lengths from the main pipe basically the same, and make the cooling capacity obtained by the same first air supply port in the left and right width directions basically the same. The present invention also optimizes the adjustment of the aperture size and the aperture position of the floor air outlet orifice, as shown in Figure 2, in the traditional data center air supply mode, the aperture sizes of all the holes in each first air supply orifice are consistent ( For example, both are 22mm), the hole spacing is also the same (for example, 28mm), and the porosity is about 50%. This simple design makes the cold air flow out of the floor hole near the air outlet of the branch pipeline have a large air volume and low temperature, while The air volume and temperature of the cold air flowing away from the air outlet of the branch pipe are small and the temperature is high. The present invention reduces the aperture of the floor hole near the air outlet of the branch pipe (for example, 15mm), and the aperture of the floor hole far away from the air outlet of the branch pipe becomes smaller. Large (for example, 25mm), as shown in Figure 2, but keep the porosity of the entire first air supply port unchanged. That is to say, the holes of the orifice plate of the first air supply port and the hole of the orifice plate of the second air supply port are closer to the air outlet of the air supply pipeline 11 , and the diameters of the holes are smaller. The optimized design and structural adjustment of the above two aspects can make the cooling capacity obtained by the servers at different width positions in the cabinet basically the same in the width direction, and significantly improve the air supply efficiency and the cooling effect of the servers. Finally, the present invention also optimizes the configuration of the width and height of the closed refrigerator 2, including that the width of the closed refrigerator 2 is greater than the width of the cabinet 1 by 5-10mm, and the height of the closed refrigerator 2 is equal to the height of the uppermost server 4 in the cabinet 1. flat, reduce the suspension distance between the server 4 and the server 4, make the cooling capacity in the closed refrigerator 2 more concentrated, and completely isolate the bottom of the cabinet 1 from the underground air supply channel 5, and increase the suspension distance between the server 4 and the server 4 A blind plate is installed at the front to prevent the loss of cooling capacity and further improve the efficiency of air supply and heat dissipation.

The evaporation section of the first heat pipe 6 is a flat plate evaporator, or a cylindrical evaporator coupled with a metal plate. The area of the plate in the evaporation section is very small, and its side length is only about 2-4 cm. The cooling section of the first heat pipe 6 is a finned tube, and the preparation and connection of the heat pipe and the fin can be integrally formed or extruded or cold expanded or screwed. The first heat pipe 6 can be aluminum-ammonia heat pipe or copper-water heat pipe or aluminum-freon or copper-freon heat pipe, and the evaporation section of the heat pipe is arranged horizontally, and the cooling section is bent upward by 5-15 degrees relative to the evaporation section to speed up the liquid phase. The reflux capacity of the working fluid improves the heat transfer capacity of the heat pipe. The evaporation section of the first heat pipe 6 can choose whether to arrange a capillary wick according to the heat transfer power requirement. When the heat transfer power is greater than 100W, the first heat pipe 6 is designed with a capillary wick, which is a loop heat pipe structure; otherwise, there is no capillary wick, which is gravity type heat pipe structure.

Both the evaporating section and the cooling section of the second heat pipe 20 adopt a finned tube structure. The second heat pipe 20 may be an aluminum-ammonia heat pipe, a copper-freon heat pipe or an aluminum-freon heat pipe. The second heat pipe 20 has no capillary core and is a gravity heat pipe, and each heat pipe is arranged at an inclination angle of 5-15 degrees counterclockwise relative to the horizontal direction. The heat transfer direction of the second heat pipe 20 is irreversible, and heat can only be transferred from the hot air side to the cold air side, that is, the heat pipe can only transfer heat from the inside of the machine room to the outside of the machine room when the heat pipe is working.

The second heat pipe 20 can automatically start and run for a long time. When the air temperature in the hot air pipeline 7 is higher than the temperature of the external environment by a certain temperature difference, such as 5°C and above, the heat pipe automatically starts to run, and most of the heat in the heat pipe pipeline 7 is directly discharged from the machine room to the outside of the machine room through the heat pipe 20 Otherwise, the heat pipe 20 cannot be started, the heat pipe air conditioner 8 stops working, and the external heat cannot be introduced, and all the heat generated by the server 4 is borne by the computer room air conditioner 10 . The heat pipe air conditioner 8 is designed in combination with the closed loop structure of the closed heating cabinet 3 and the hot air pipeline 7, and it is located at the front end of the computer room air conditioner 10, which can make the heat pipe air conditioner 8 run most of the year, and the whole year in the north. accounted for more than 70-85%, and in the south of the annual operating time accounted for more than 50-70%.

The working process of a novel heat dissipation technology and system of a data center of the present invention is as follows:

1) The cold air 12 refrigerated by the computer room air conditioner 10 is transported to the entire underground air supply channel 5 through the air supply pipeline 11 . The lower floor of the closed freezer 2 has a first air supply hole orifice, and a part of the cold air 12 enters the closed freezer 2 after coming out from the underground air supply channel 5 to form a uniform cold airflow 13 of the freezer, and then flows into the server 4 in the cabinet 1.

2) The cold air flow 13 of the refrigerator performs a heat exchange process with the heat-generating components inside the server 4 , and the cold air flow 13 of the refrigerator absorbs heat and heats up to become a hot air flow 14 . The hot air flow 14 is sucked away by the exhaust fan 16 located at the rear top of the cabinet 1 , flows upwards and collects in the hot air pipeline 7 .

3) The evaporating section of the first heat pipe 6 is close to the heat-generating part of the server 4, and performs a heat exchange process with the heat-generating part. Heat is transferred from the heat-generating component to the evaporation section of the first heat pipe 6 by means of heat conduction, and the liquid working medium in the evaporation section of the first heat pipe 6 absorbs heat and undergoes a phase change, and the liquid becomes a gas. The gas automatically flows towards the cooling section of the first heat pipe 6 under the action of the steam pressure.

If the heat transfer performance of the first heat pipe 6 is excellent, all the heat generated by the server 4 can be delivered to the cooling section of the first heat pipe 6, so on the one hand the first air outlet orifice plate and the closed refrigerator 2 on the floor below the closed refrigerator 2 can be removed, There is also no cold air flow 13 of the refrigerator and the hot air flow 14 produced after passing through the server, so that the exhaust fan 16 inside the server 4 can be further removed, the operating noise of the server is greatly reduced, the huge noise pollution of the data center is reduced, and the work of the data center is improved. The overall comfort of the personnel. This is the additional effect and huge advantage that the present invention proposes to use the structural feature of the first heat pipe 6 to dissipate heat from the server, and it may subvert the current overall heat dissipation mode of the data center.

4) The floor at the bottom of the closed heating cabinet 3 has a second air outlet orifice, and a part of the air supply channel cold air 12 enters the closed heating cabinet 3 after coming out from the underground air supply channel 5 to form a uniform cooling air flow 15 in the heating cabinet. The cold air flow 15 of the hot cabinet flows through the cooling section of the first heat pipe 6 and exchanges heat with the cooling section of the first heat pipe 6 . The first heat pipe 6 transfers heat to the cold air flow 15 of the hot cabinet. The working fluid in the cooling section of the heat pipe condenses and undergoes a phase change due to heat release, and the gas becomes liquid, and the liquid automatically flows back from the cooling section of the heat pipe under the action of gravity. The evaporation section of the heat pipe repeats in this way. The cold air flow 15 of the hot cabinet heats up after absorbing the heat, and is drawn away by the low-power exhaust fan 25 and converges on the hot blast pipeline 7 .

5) The hot air flow 14 in the hot air pipeline 7 and the cold air flow 15 of the hot cabinet after absorbing heat are combined to form high-temperature hot air 17 . High temperature hot air 17 flows in from the inlet of the hot air side of the heat pipe air conditioner 8 and flows through the evaporation section of the second heat pipe 20 . The high-temperature hot air 17 exchanges heat with the evaporating section of the second heat pipe 20, and the heat is transferred from the high-temperature hot air 17 to the evaporating section of the second heat pipe 20. The liquid working medium in the evaporating section of the heat pipe absorbs heat and undergoes a phase change, and the liquid becomes When the gas is released, the gaseous working medium automatically flows to the cooling section of the heat pipe. After the high-temperature hot air 17 releases heat, the temperature has been reduced and becomes the low-temperature hot air 18 .

6) The cooling section of the second heat pipe 20 is located on the cold air side of the heat pipe air conditioner 8, and the cold air side is located outside the machine room. The cold outside air 19 in the outside atmosphere flows in from the inlet of the cold air side of the heat pipe type air conditioner 8 , and flows through the cooling section of the second heat pipe 20 . The external cold air 19 exchanges heat with the cooling section of the second heat pipe 20, and the heat is transferred from the cooling section of the second heat pipe 20 to the external cold air 19. Become a liquid, the liquid automatically flows back to the evaporation section of the heat pipe from the cooling section of the heat pipe under the action of gravity, and the cycle is repeated like this. The outside cold air 19 heats up after absorbing heat and becomes the outside hot air 21, and the outside hot air 21 is directly discharged into the outside atmosphere by the blower at the cold wind side.

7) The low-temperature hot air 18 flows into the return air pipeline 9, and finally gathers into the computer room air conditioner 10 for cooling and cooling. The high temperature hot air 17 in the hot air pipeline 7 has been cooled by the heat pipe air conditioner 8 , so the cooling load of the machine room air conditioner 10 is greatly reduced.

If the cooling effect of the heat pipe air conditioner 8 is remarkable throughout the winter, the computer room air conditioner 10 can even be stopped.

In summer, if the external cold air 19 on the cold air side of the heat pipe air conditioner 8 is close to or even exceeds the inlet high temperature hot air 17 on the hot air side of the heat pipe air conditioner 8, the heat pipe air conditioner 8 will automatically stop working, and the heat cannot be reversed, that is, the heat cannot be transferred from the outside. Pass through the heat pipe air conditioner 8 to the machine room. However, the high-temperature hot air 17 can still flow smoothly through the hot air side of the heat pipe air conditioner 8 and directly return to the computer room air conditioner 10 for cooling and cooling.

8) After the computer room air conditioner 10 cools down, the cold air 12 in the air supply channel is transported to the entire underground air supply channel 5 through the air supply pipeline 11 again, and the above-mentioned process is followed in sequence, and the cycle is repeated to form the entire closed-loop circulation circuit 22 .

Parts not described in detail in the present invention belong to the well-known technology of those skilled in the art.

Claims (10)

1. the quaternity cooling system of a data center, it is characterised in that include closing hot cabinet (3), Ground end air-supply passage (5), the first heat pipe (6), hot-blast pipe line (7), hot-pipe type air conditioning (8), Air return pipeline (9), air conditioner in machine room (10) and air-supply pipeline (11)；Close hot cabinet (3), the end Air-supply passage (5), the first heat pipe (6), hot-blast pipe line (7), hot-pipe type air conditioning (8), return air Pipeline (9), air conditioner in machine room (10) and air-supply pipeline (11) be not the most empty with the environment in data center Gas connects；Close hot cabinet (3) in rack (1) side, and do not connect with rack (1), first Server (4) laminating in the evaporator section of heat pipe (6) and rack (1), the first heat pipe (6) cold But during section is positioned at the hot cabinet of closing (3)；The air outlet of one end of hot-blast pipe line (7) and rack (1) and The air outlet closing hot cabinet (3) connects, and the other end connects with the air intake vent of hot-pipe type air conditioning (8) hot blast side Connecing, air return pipeline (9) is connected to air outlet and the air conditioner in machine room (10) of hot-pipe type air conditioning (8) hot blast side Air intake vent between, air-supply pipeline (11) one end be connected, separately with the air outlet of air conditioner in machine room (10) One end connects with ground end air-supply passage (5)；Ground end air-supply passage (5) is provided with and closes hot cabinet (3) The second air outlet that bottom is connected.

2. the quaternity cooling system of a data center as claimed in claim 1, it is characterised in that Described cooling system also include close refrigerator (2), described closing refrigerator (2) in rack (1) side, And be connected with rack (1), the end, described ground air-supply passage (5), is provided with and closes refrigerator (2) bottom The first air outlet being connected, closes refrigerator (2) and does not connects with the surrounding air in data center.

3. a quaternity cooling system for data center as claimed in claim 2, its feature exists In, the width of described closing refrigerator (2), more than the width 5～10mm of rack (1), closes refrigerator (2) The height of the height server (4) the highest with the position in rack (1) flush.

4. the quaternity cooling system of a data center as claimed in claim 2, it is characterised in that Described air-supply pipeline (11) is in air-supply passage at the bottom of ground (5), including supervisor and arm, supervisor and machine The air outlet of room air-conditioning (10) connects, and one end of arm is connected with supervisor, and the other end of arm is arm Air outlet, arm extends towards different orientation, and blows to air-supply passage at the bottom of ground (5).

5. the quaternity cooling system of a data center as claimed in claim 4, it is characterised in that Described arm air outlet is positioned at the first air outlet or at the second air outlet.

6. the quaternity cooling system of a data center as claimed in claim 5, it is characterised in that The quantity that the arm air outlet of described air-supply pipeline (11) is responsible at the first air outlet farther out in distance is many Quantity at first air outlet nearer distance supervisor, at distance supervisor the second air outlet farther out Quantity more than the quantity at distance nearer the second air outlet of supervisor.

7. the quaternity cooling system of a data center as claimed in claim 5, it is characterised in that Described first air outlet is provided with the first air outlet orifice plate with the junction on ground, at the second air outlet and ground Junction be provided with second and send one's intention as revealed in what one says orifice plate, the hole of the first air outlet orifice plate and the second air outlet orifice plate Hole be all from air-supply pipeline (11) arm air outlet more close to, aperture is the least.

8. a quaternity cooling system for the data center as described in one of claim 1 to 8, its It is characterised by, described rack (1), closes hot cabinet (3) and hot-blast pipe line (7) is two or two Above, rack (1) and the hot cabinet of closing (3) are connected in parallel to by hot-blast pipe line (7) The hot blast side air intake vent of hot-pipe type air conditioning (8).

9. a quaternity cooling system for the data center as described in one of claim 1 to 8, its Being characterised by, described hot-pipe type air conditioning (8) includes the second heat pipe (20), the second heat pipe (20) Evaporator section is positioned at the hot blast side of hot-pipe type air conditioning (8), and cooling section is positioned at the cold wind of hot-pipe type air conditioning (8) Side, the second heat pipe (20) relatively horizontal orientation tilts 5～15 degree counterclockwise.

10. a quaternity cooling system for the data center as described in one of claim 1 to 8, It is characterized in that, the cooling section relative evaporation section of described first heat pipe (6) is folded upward at 5～15 degree.