A data center embedded floor tile heat exchanger hybrid cooling system and method

Abstract

The application belongs to the technical field of data center cooling, and discloses a data center embedded floor tile heat exchanger hybrid cooling system and method, wherein a cold-hot floor passage unit is provided with two floor partitions, a floor hot passage and a floor cold passage are reserved between the two floor partitions; an air conditioning device, a heat exchanger and a exhaust manifold are arranged between the two floor partitions, the exhaust manifold is connected with two heat exchangers; the exhaust manifold is communicated with high-temperature heat exchange pipes and low-temperature heat exchange pipes, and the high-temperature heat exchange pipes and the low-temperature heat exchange pipes are arranged between adjacent two rows of information devices. All cooling devices of the application are arranged under the floor and do not occupy cabinet space, so that the cabinet rate is increased. The liquid coolant can be circulated by itself, and external cold water is not needed, so that the system safety is improved. The hybrid refrigeration mode is adopted, so that the air-cooled structure is simple and low in cost, the liquid refrigerant cooling efficiency is high, and the liquid refrigerant is environmentally friendly.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of data center cooling, and particularly relates to a data center embedded floor tile heat exchanger hybrid cooling system and method. BACKGROUND

[0002] At present, air cooling is combined with underground air supply, and an air conditioner is placed in an independent room, cold air enters a cold channel, is heated by a server, and then returns to the air conditioner to complete a cycle, which is a traditional method with the longest application history and the highest customer acceptance, and has advantages of low cost and simple structure, but has relatively low cooling efficiency and cannot be applied to high-power cabinet refrigeration requirements. Although the row-level heat dissipation with strong heat dissipation technology enhances the power limitation of the equipment, it also has limitations such as a decrease in cabinet rate of the machine room. In summary, the existing data center air supply technology has problems such as long air supply distance, large fan energy consumption, insufficient cooling water supply, and mutual exclusion of cabinet rate and cooling mode.

[0003] Through the above analysis, the problems and defects of the prior art are that the existing data center air supply technology has problems such as long air supply distance, large fan energy consumption, insufficient cooling water supply, and mutual exclusion of cabinet rate and cooling mode. SUMMARY

[0004] In view of the problems existing in the prior art, the present application provides a data center embedded floor tile heat exchanger hybrid cooling system and method.

[0005] The present application is implemented as follows: a data center embedded floor tile heat exchanger hybrid cooling system comprises:

[0006] an air conditioning device, a heat exchanger, an exhaust manifold, a high-temperature heat exchanger pipe, a low-temperature heat exchanger pipe, and a cold and hot floor underpass unit;

[0007] The cold and hot floor underpass unit is provided with two floor partitions, and a floor hot channel and a floor cold channel are reserved between the two floor partitions.

[0008] The air conditioning device, the heat exchanger, and the exhaust manifold are arranged between the two floor partitions, and the exhaust manifold is connected with two heat exchangers.

[0009] The exhaust manifold is in communication with the high-temperature heat exchanger pipe and the low-temperature heat exchanger pipe, and the high-temperature heat exchanger pipe and the low-temperature heat exchanger pipe are arranged at intervals between adjacent two rows of information equipment.

[0010] Further, the floor hot channel and the floor cold channel are both provided with ventilation openings, and the floor hot channel and the floor cold channel are isolated by a partition.

[0011] Further, one air conditioning device is arranged on each side of the floor cold channel, and the air conditioning device is located on the side of the heat exchanger below the information equipment.

[0012] Further, the two adjacent rows of information equipment are provided with a closed partition plate to form a cabinet, and a heat insulation layer is arranged between the two adjacent cabinets.

[0013] Further, a cabinet is arranged above the two groups of air conditioning equipment, and two air conditioning equipment with opposite air outlets are divided into a group.

[0014] Further, a ventilation hole is arranged on the upper side of the heat exchanger, which is used for directly air cooling the unit by using the remaining cold air after passing through the heat exchanger.

[0015] Further, a floor drain and a water leakage detector are arranged at the bottom of the cold and hot floor passage unit, which are used for waterproofing.

[0016] Further, the high-temperature heat exchange pipe and the low-temperature heat exchange pipe are arranged in a cross manner.

[0017] Further, the air conditioning equipment uses chilled water as a cold source, or a direct expansion compressor system as a cold source.

[0018] Another object of the present application is to provide a data center embedded floor tile heat exchanger hybrid cooling method, which comprises:

[0019] The cold air of the air conditioning equipment is pushed to the heat exchanger by static pressure;

[0020] The temperature of the cold air passing through the heat exchanger is increased, but it is still lower than the temperature of the information equipment, and the remaining cold temperature is used to cool the information equipment;

[0021] After the coolant is cooled, it passes through the floor and enters the low-temperature heat exchange pipe, at this time, the temperature of the low-temperature heat exchange pipe is reduced, and the heat exchange with the information equipment provides a cold source for the high-temperature information equipment;

[0022] The high-temperature heat exchange pipe simultaneously absorbs the heat of the information equipment, and then returns to the heat exchanger through the exhaust manifold to participate in a new round of cooling cycle.

[0023] In combination with the above technical solutions and the technical problems solved, the technical solutions of the present application have the following advantages and positive effects:

[0024] All the cooling equipment of the present application is arranged under the floor and does not occupy the cabinet space, thereby increasing the cabinet rate. The liquid coolant can be circulated by itself without the need of external cold water supply, thereby improving the system safety. The embedded heat exchanger does not affect the original data center layout, and the specific implementation difficulty is small. The mixed refrigeration mode is adopted, which has the advantages of simple air cooling structure and low cost, and also has the advantages of high cooling efficiency of liquid refrigerant and environmental protection.

[0025] The application has the advantages of simple air cooling structure and low cost, and the advantages of high cooling efficiency of liquid refrigerant and environmental protection, the coolant can be recycled, and the layout of the original data center does not need to be changed, and the overall economy of the data center is improved.

[0026] The technical solution of the application eliminates the necessity of cooling water required for deploying a liquid cooling solution, and overcomes the problem of lack of chilled water source in the one-way cooling technology of the data center.

[0027] The technical solution of the application considers the waste heat utilization problem after the air conditioning cold air exchanges heat with the heat exchanger, further cools the information equipment by air cooling, strengthens the natural circulation of indoor cold and hot air, improves the overall energy utilization efficiency of the data center, and does not need to change the layout of the data center. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic diagram of the data center embedded floor tile heat exchanger hybrid cooling system provided by the embodiment of the application.

[0029] Figure 2 is a structural schematic diagram of the floor upper and lower partition plate provided by the embodiment of the application.

[0030] Figure 3 is a top view of the data center embedded floor tile heat exchanger hybrid cooling system provided by the embodiment of the application.

[0031] In the figure: 101, air conditioning equipment; 102, heat exchanger; 103, exhaust manifold; 104, high-temperature heat exchange pipe; 105, low-temperature heat exchange pipe; 106, information equipment; 107, other cabinet group; 108, floor heat channel; 109, closed partition plate; 110, floor upper and lower partition plate; 111, floor cold channel. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the application more clear and explicit, the following combines embodiments to further specifically describe the application.

[0033] In order to make those skilled in the art fully understand how the application is specifically implemented, this part is an explanatory embodiment of the description of the technical scheme of the claims.

[0034] As Figures 1 to 3As shown, the data center embedded floor tile heat exchanger hybrid cooling system provided by the embodiment of the present application comprises: air conditioning equipment 101, a heat exchanger 102, a manifold 103, high-temperature heat exchange pipes 104, low-temperature heat exchange pipes 105, and a cold-hot floor underpass unit.

[0035] The air conditioning equipment 101 is arranged right below the heat exchanger 102 in a cabinet, the heat exchanger 102 is arranged in a floor cold passageway 111 and right below equipment to be cooled, the manifold 103 is connected with the heat exchanger 102 and the high-temperature heat exchange pipes 104 and the low-temperature heat exchange pipes 105, the high-temperature heat exchange pipes 104 are arranged above the floor and between two adjacent rows of information equipment 106, the low-temperature heat exchange pipes 105 are arranged above the floor, between the information equipment 106 and adjacent to the high-temperature heat exchange pipes 104, the cold-hot floor underpass unit is provided with a floor up-down partition plate 110, the floor hot passageway 108 and the floor cold passageway 111 are reserved in the middle of the floor up-down partition plate 110, and the floor hot passageway 108 and the floor cold passageway 111 are isolated by the partition plate.

[0036] The floor cold passageway 111 is located in the air conditioning equipment interval and is provided with a ventilation opening thereon.

[0037] The floor hot passageway 108 is located outside the air conditioning equipment and is provided with a ventilation opening thereon.

[0038] Further, one air conditioning equipment is arranged on each side of the floor cold passageway 111, and the air conditioning equipment 101 is arranged on the side of the heat exchanger right below the information equipment.

[0039] Further, two adjacent rows of information equipment 106 are covered with a closed partition plate to form a cabinet, and a heat insulation layer is arranged between two adjacent cabinets, one cabinet is placed above two groups of air conditioning equipment 101, and two air conditioning equipment with opposite air outlets are divided into one group.

[0040] Further, a floor drain and a water leakage detector are arranged at the bottom of the cold-hot floor underpass unit for waterproofing.

[0041] Further, the high-temperature heat exchange pipes 104 and the low-temperature heat exchange pipes 105 are arranged in a cross manner.

[0042] Further, the air conditioning equipment 101 uses chilled water as a cold source or a direct expansion compressor system as a cold source.

[0043] Figure 2 FIG. 1 is a structural schematic view of the floor up-down partition plate 110, in order to prevent heat in the floor hot passageway from entering the floor cold passageway and deteriorating the cooling cycle, the floor up-down partition plate 110 is arranged to make the heat of the information equipment collected from the ventilation opening of the floor hot passageway 108 received by the air conditioning equipment 101. In addition, a floor drain and a water leakage detector can be installed underground for waterproofing.

[0044] Figure 3It is the overhead view of the embedded floor tile heat exchanger hybrid cooling data center system (two sets of air conditioning equipment), the high temperature heat exchange pipe 104 is arranged crossing the low temperature heat exchange pipe 105, and this layout is used to enhance the heat exchange capacity of the system.

[0045] The cooling cycle process of the data center embedded floor tile heat exchanger hybrid cooling system provided by the application in use includes: cold air from the air conditioning equipment 101 is pushed to the heat exchanger 102 by static pressure, the temperature of the cold air passing through the heat exchanger 102 is increased, but is still lower than that of the information equipment 106, and the remaining cold temperature is used to cool the information equipment 106. After the coolant is cooled, it passes through the floor into the low temperature heat exchange pipe 105, at this time, the temperature of 105 is reduced, and heat exchange is performed with the information equipment, so as to provide a cold source for the high temperature information equipment 106, while the high temperature heat exchange pipe 104 absorbs the heat of the information equipment, and then returns to the heat exchanger 102 through the exhaust manifold 103 to participate in a new round of cooling cycle.

[0046] In order to prove the creativity and technical value of the technical scheme of the application, this part is an application embodiment of the technical scheme of the claim on a specific product or related technology.

[0047] Figure 1 The cooling cycle process is described, cold air from the air conditioning equipment 101 is pushed to the heat exchanger 102 by static pressure, the temperature of the cold air passing through the heat exchanger 102 is increased, but is still lower than that of the information equipment 106, and the remaining cold temperature is used to cool the information equipment 106. After the coolant is cooled, it passes through the floor into the low temperature heat exchange pipe 105, at this time, the temperature of 105 is reduced, and heat exchange is performed with the information equipment, so as to provide a cold source for the high temperature information equipment 106, while the high temperature heat exchange pipe 104 absorbs the heat of the information equipment, and then returns to the heat exchanger 102 through the exhaust manifold 103 to participate in a new round of cooling cycle.

[0048] In addition to the finned heat exchanger, the heat plate heat exchanger can also be used for cooling heat exchange, and the floor drain, water leakage detector and other waterproof measures can be installed underground.

[0049] The system includes: air conditioning equipment, heat exchanger (finned), exhaust manifold, high temperature heat exchange pipe, low temperature heat exchange pipe, cold and hot floor passage and other units. The air conditioning equipment is arranged below the floor, the cold passage below the floor is provided with air conditioning equipment on both sides, the cold and hot passages below the floor are uniformly provided with ventilation openings, and the cold and hot passages are completely separated by a partition. The air conditioning system of the system is arranged below the floor, the cabinet rate is increased, the air cooling and the coolant hybrid cooling ensure their respective points, and are more environmentally friendly and safe. Since the system is arranged underground, the problem of damaging the cabinet group due to leakage does not need to be worried about, and the energy consumption of the fan is also reduced, so that the energy saving purpose is achieved.

[0050] The embodiment of the present application has achieved some positive effects in research and development or use, and has great advantages compared with the prior art. The present application introduces a solution without modifying the data center layout, without providing chilled water externally, by analyzing the performance of the heat exchanger, it is proved that a set of heat exchangers installed in the cold aisle can handle a large amount of cooling load, and the test is carried out under different air conditioning supply air temperatures, the results show that the refrigerating capacity of the heat exchanger is sensitive to the air conditioning supply air temperature, the optimal air conditioning supply air temperature is reasonably determined through the specific scale of the data center, and the energy utilization rate of the data center is significantly improved.

[0051] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any modification, equivalent replacement and improvement within the technical range disclosed by the present application, within the spirit and principle of the present application, should be covered within the protection scope of the present application.

Claims

1. A hybrid cooling system for a data center embedded floor tile heat exchanger, characterized in that, The data center embedded floor tile heat exchanger hybrid cooling system is equipped with: Underfloor access unit for hot and cold floors; The hot and cold floor underpass unit is provided with two floor partitions, one above the other, with a floor hot passage and a floor cold passage reserved between the two floor partitions. The air conditioning equipment, heat exchangers, and manifolds are arranged between two floor partitions, and the manifolds are connected to two heat exchangers. The manifold is connected to the high-temperature heat exchange tube and the low-temperature heat exchange tube respectively, and the high-temperature heat exchange tube and the low-temperature heat exchange tube are spaced apart between two adjacent rows of information equipment; The outer sides of two adjacent rows of information equipment are covered with enclosed partitions to form cabinets, and a heat insulation layer is arranged between two adjacent cabinets; A cabinet is placed above the two sets of air conditioning equipment, and the two air conditioning equipment with opposite air outlets are designated as a group. The floor hot aisle and the floor cold aisle are evenly provided with ventilation openings, and the floor hot aisle and the floor cold aisle are separated by a partition; An air conditioning unit is installed on each side of the floor cold aisle, and the air conditioning unit is located on the side of the heat exchanger directly below the information equipment. The heat exchanger is provided with ventilation holes on the upper side, which are used to directly air-cool the unit by utilizing the residual cold air after passing through the heat exchanger. A hybrid cooling method for a data center embedded floor tile heat exchanger hybrid cooling system, comprising: The cold air from the air conditioning unit is pushed to the heat exchanger by static pressure; The temperature of the cold air passing through the heat exchanger rises, but it is still lower than the temperature of the information equipment. The remaining cold air is used to cool the information equipment. After the coolant cools down, it passes through the floor and enters the low-temperature heat exchange tube. At this time, the temperature of the low-temperature heat exchange tube decreases, and it exchanges heat with the information equipment, providing a cold source for the high-temperature information equipment. The high-temperature heat exchange tubes simultaneously absorb heat from the information equipment and then return it to the heat exchanger through the manifold to participate in a new round of cooling cycle.

2. The hybrid cooling system for data center embedded floor tile heat exchangers as described in claim 1, characterized in that, The bottom of the underfloor channel unit for hot and cold floors is equipped with a floor drain and a leak detector for waterproofing.

3. The hybrid cooling system for data center embedded floor tile heat exchangers as described in claim 1, characterized in that, The high-temperature heat exchange tubes and the low-temperature heat exchange tubes are arranged in a cross pattern.

4. The hybrid cooling system for data center embedded floor tile heat exchangers as described in claim 1, characterized in that, The air conditioning equipment uses chilled water as the cold source, or a direct expansion compressor system as the cold source.

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