Data center with a row of switch cabinets arranged in a container and a cold aisle / hot aisle partition.

Abstract

Data center (1) with a row of switch cabinets (3) arranged in a container (2), which separates a cold aisle (5) from a hot aisle (6) by means of a bulkhead (4), wherein at least one cooling unit (7) is inserted in at least one opening (8) through an outer wall (9) of the container (2), which is connected to the interior of the container (2) by means of its inner air circuit (10), and which is connected to the environment of the container (2) by means of its outer air circuit (11) which is fluidically sealed off from the inner air circuit (10), and wherein the bulkhead (4) fluidically separates a cooling air outlet (12) of the inner air circuit (10) from a warm air inlet (13) of the inner air circuit (10), characterized in that a horizontal air duct (18) with at least one air duct (19) is arranged in the hot aisle (6) above the row of switch cabinets (3).

Description

[0001] The invention is based on a data center with a row of switch cabinets arranged in a container, which separates a cold aisle from a hot aisle by means of a partition. Such a data center is described in EP 3 157 316 B1. Similar data centers are also described in WO 2014 / 174606 A1, US 2013 / 0008197 A1, US 2015 / 0245541 A1, US 10925185 B1, and US 8 331 086 B1. CN 105338793 A and US 2016 / 0 037 685 A1 also describe container-type data centers with open-air cooling.

[0002] CN 111669953 A describes a container-style data center with an air conditioning system housed in a side wall. It also includes a partition to separate a cold aisle from a hot aisle.

[0003] Other well-known container-based data centers have the disadvantage of limited scalability of the cooling capacity provided. In particular, the corresponding cooling units are usually permanently installed in the container, so that to increase the cooling capacity, for example, as part of an expansion of the IT infrastructure in the container, an inline cooling unit in the switch cabinet row must be replaced with another cooling unit with a correspondingly adapted cooling capacity. The cooling units are also limited in terms of the cooling technology used or require extensive piping to fluidically connect external free coolers or chillers to evaporators installed in the switch cabinet row or in the raised floor.

[0004] It is therefore the object of the invention to further develop a data center of the type described above in such a way that it has a high scalability with regard to the cooling technology used and, in particular, the exchange of the cooling technology, for example for capacity adjustment, is realized with simple technical means.

[0005] This object is achieved by a data center having the features of the main claim. The dependent claims each relate to advantageous embodiments of the invention.

[0006] Accordingly, in a data center, at least one cooling device is installed in at least one opening through an outer wall of the container. This cooling device is connected to the interior of the container via an internal air circuit, and is connected to the container's surroundings via its external air circuit, which is fluidically separated from the internal air circuit. Furthermore, the partition fluidically separates a cool air outlet of the internal air circuit from a warm air inlet of the internal air circuit.

[0007] In the warm aisle, a horizontal air duct with at least one air duct is arranged above the row of switch cabinets, preferably between the row of switch cabinets and a ceiling of the container, wherein the at least one air duct preferably opens into the warm air inlet of the internal air circuit of the cooling device.

[0008] The invention thus takes advantage of the fact that, depending on the design, containers can be provided with openings in almost any way, even retrospectively, in order to easily and interchangeably insert cooling devices of any capacity. The cooling devices, in turn, can be switch cabinet cooling devices known from the prior art, which can be mounted in or on an opening in a flat part of a switch cabinet housing, so that their inner air circuit is assigned to the interior of the switch cabinet and their outer air circuit to the environment of the switch cabinet housing. Depending on the design, various cooling technologies can be implemented in the cooling device, for example free cooling, a refrigeration machine, or a combination of both. A cooling device particularly suitable for the present invention is described, for example, in EP 2 891 396 B1.

[0009] The cooling device can particularly preferably be installed in an opening through a vertical outer wall of the container. The cooling air outlet can be arranged below the warm air inlet, wherein the cooling air outlet is preferably arranged vertically below the warm air inlet. This arrangement of the cooling air outlet and warm air inlet corresponds to the arrangement customary in switch cabinet cooling devices, which is designed to blow cooling air into a lower region of the switch cabinet housing and, after heating and corresponding convection, to suck this air back into the cooling device in an upper region of the switch cabinet housing. In one embodiment of the invention, this arrangement of the warm air inlet and air outlet is used to supply the switch cabinet row in the cold aisle with cooling air in a lower region and to suck out heated air from the warm aisle in a separate upper region.

[0010] The interior of the container can be fluidically separated from the surroundings, preventing mixing of the air contained within the container and the ambient air. Unlike conventional container solutions, this also eliminates the need to filter the air entering the control cabinet, as no potentially contaminated ambient air is drawn into the container.

[0011] The partition can be arranged horizontally and / or at an acute angle to the horizontal, at least in sections. The partition can be optically transparent at least in a section arranged horizontally and / or at an acute angle to the horizontal. This is particularly useful if a downward-radiating light source is arranged above the optically transparent section. The light source can, in particular, be arranged under the ceiling of the container, as is known from the prior art in container data centers. In this respect, the partitioning of the data center according to the invention in no way affects the usual lighting infrastructure of the container data center.

[0012] The warm aisle can extend above the switch cabinet row across the entire width of the interior of the container. In particular, it can thus be provided that the partition does not adjoin the ceiling of the container at any point. Rather, the partition can be guided between an upper side of the switch cabinet row and that outer wall, preferably a vertical side wall, of the container in which the at least one opening is formed, in which the at least one cooling device is inserted, wherein the partition then fluidically separates the warm air inlet facing the warm aisle from the cool air outlet facing the cold aisle at its transition to the outer wall in the manner according to the invention.

[0013] The warm aisle can accordingly extend between opposite vertical outer walls of the container, with one of the outer walls being the outer wall with at least one opening. In particular, the warm aisle can extend continuously, at least in sections, between opposite vertical outer walls of the container.

[0014] The cooling air outlet can be arranged below a horizontal section of the bulkhead or a section extending at an acute angle to the horizontal.

[0015] The cooling air outlet can be located opposite a cooling air inlet of the switch cabinet row. Preferably, a warm air outlet of the switch cabinet row is located on a side of the switch cabinet row opposite the cooling air inlet of the switch cabinet row.

[0016] The cooling device can have an open-air cooling system, which preferably has a heat pipe. Additionally, the cooling device can have a refrigeration unit, wherein the open-air cooling system and the refrigeration unit have separate refrigerant circuits. In particular, the two separate refrigerant circuits can be operated independently of each other, for example, depending on the temperature difference between an actual temperature inside the control cabinet and an ambient temperature of the container and / or depending on the cooling capacity to be provided.

[0017] The two refrigerant circuits can be controlled with prioritization of the open-air cooling and depending on the power loss of the switch cabinet row as well as the ambient air temperature of the container in order to provide the required cooling capacity.

[0018] Using the data center described above, an all-in-one container solution for outdoor use can be provided, which, thanks to the excellent availability of any control cabinet cooling units, ensures extremely high energy and cost efficiency for data center operation. Due to its excellent scalability, areas with an IT load of 10 to 70 kW can be optimally covered. In particular, compared to state-of-the-art data centers, split units, which require complex piping and are only partially adaptable to changing cooling requirements, can be avoided.

[0019] Further details of the invention are explained with reference to the following figures. Fig. 1 shows a perspective view of an external view of a data center according to the invention; and Fig. 2 a cross-sectional view of the data center according to Fig. 1.

[0020] The Fig. 1 and Fig. 2 show an exemplary embodiment of a data center 1 according to the invention, which is based on a container 2. In this case, two cooling devices 7 are inserted into a vertical outer wall 9, for which purpose the outer wall 9 has two cutouts 8, through each of which a cooling device 7 extends, so that their inner air circuit 10 is fluidly connected to the interior of the container 2, while their outer air circuit 11 is open to the environment of the container 2.The cooling device 7 can, for example, be a cooling device as described in EP 2 891 396 B1, with an outer air circuit fluidically separated from the inner air circuit and based on a hybrid cooling technology, consisting of a chiller and a heat pipe, which have separate refrigerant circuits and can be controlled independently of one another in order to compensate for a required cooling capacity, for example to compensate for a currently existing power loss of an IT infrastructure accommodated in the switch cabinet row 3, depending on the situation and, for example, according to energy efficiency considerations.

[0021] The Fig. Figure 1 further illustrates that the number of cooling units 7 is essentially arbitrarily scalable by introducing additional openings 8 into the outer wall 9 as needed. Since the cooling units 7 can be commercially available switch cabinet cooling units, they can also be replaced individually and as needed, allowing for highly flexible adaptation of the cooling technology and the cooling capacity as well as the efficiency of the cooling units.

[0022] The Fig. 2 illustrates that a row of switch cabinets 3 is accommodated in the interior of the container 2 in a manner known per se, which row of switch cabinets separates a cold aisle 5 from a hot aisle 6, wherein, in contrast to the solutions known from the prior art, a partition 4 is not guided between the top side of the row of switch cabinets 3 and the roof 17 of the container 2, but rather, starting from the top side of the row of switch cabinets 3, to the outer wall 9 of the container 2, in which the two cooling devices 7 are inserted.

[0023] The partition 4 borders on the outer wall 9 in such a way that a cooling air outlet 12 of the inner air circuit 10 is fluidically separated from a warm air inlet 13 of the inner air circuit 10. For this purpose, it can be provided in particular that, in the manner basically known from the prior art, the partition 4 according to the invention also extends over the entire length (perpendicular to the plane of the drawing of the Fig.2) of the switch cabinet row 3. The cooling air exiting from the inner circuit 10 via the cooling air outlet 12 of the cooling device 7 is blown directly in front of a cooling air inlet 15 of the switch cabinet row 3. Due to the overpressure generated in the cold aisle, the cooling air is forced through the switch cabinet row 3, heated in the process, and blown out as heated air into the warm aisle 6. In contrast to the data centers known from the prior art, the warm air can now reach the entire width of the container, i.e. also across the cold aisle 5, as far as the outer wall 9 containing the cooling device 7, from where it can be sucked into the cooling device 7 via the warm air inlet 13 of the inner air circuit 10. After the warm air has been cooled in the cooling device 7, it can be blown out again as cooled air into the cold aisle 5 in the manner described above and once again supply the switch cabinet row 3.

[0024] The partition 4 is arranged horizontally or at an acute angle to the roof 17 or the horizontal, at least in sections. At least in the horizontal section and / or in a section arranged at an acute angle to the horizontal or the roof 17, the partition 4 can be optically transparent, allowing light to pass through. This allows the partition 4 itself to be dispensed with any light sources, but rather to use the light sources 14 provided standardly on the ceiling 17 in data center containers, so that no adaptations to the lighting technology are required for the use of the partition according to the invention.

[0025] To optimize the air flow above switch cabinet row 3, a horizontal air duct 18 with an air duct 19 is provided between switch cabinet row 3 and the ceiling 17 of container 2. The air duct can be arranged to open into the warm air inlet of the cooling unit's internal air circuit in order to optimize the air flow from the side of switch cabinet row 3 having the warm air outlet 16 of switch cabinet row 3, across switch cabinet row 3, to the warm air inlet 13 of cooling unit 7 in the outer wall 9 of container 2 bordering cold aisle 5.

[0026] The features of the invention disclosed in the above description, in the drawings and in the claims may be essential for the realization of the invention both individually and in any combination. List of reference symbols 1 data center 2 containers 3 control cabinet rows 4 Bulkhead 5 Cold aisle 6 Warm-up process 7 Cooling device 8 Breakthrough 9 Exterior wall 10 Inner air circuit 11 Outer air circuit 12 Cooling air outlet 13 Warm air inlet 14 Light source 15 Cooling air inlet 16 Warm air outlet 17 Ceiling 18 Air duct 19 Air duct

Claims

[1] Data center (1) with a row of switch cabinets (3) arranged in a container (2), which separates a cold aisle (5) from a warm aisle (6) by means of a partition (4), wherein at least one cooling device (7) is inserted into at least one opening (8) through an outer wall (9) of the container (2), which is connected to the interior of the container (2) by means of its inner air circuit (10), and which is connected to the environment of the container (2) by means of its outer air circuit (11), which is fluidically sealed off from the inner air circuit (10), and wherein the partition (4) fluidically separates a cooling air outlet (12) of the inner air circuit (10) from a warm air inlet (13) of the inner air circuit (10), characterized by that a horizontal air guide (18) with at least one air guide channel (19) is arranged in the hot aisle (6) above the switch cabinet row (3). [2] Data center (1) according to claim 1, wherein the cooling device (7) is inserted into an opening (8) through a vertical outer wall (9) of the container (2). [3] Data center (1) according to claim 1 or 2, wherein the cooling air outlet (12) is arranged below the warm air inlet (13). [4] Data center (1) according to one of the preceding claims, in which the interior of the container (2) is fluidically separated from the environment of the container (2) so that mixing of the air accommodated in the interior of the container (2) and the ambient air is avoided. [5] Data center (1) according to one of the preceding claims, in which the partition (4) is guided at least in sections horizontally and / or at an acute angle to the horizontal. [6] Data center (1) according to one of the preceding claims, in which the partition (4) is optically transparent at least in a horizontal section and / or at an acute angle to the horizontal section. [7] Data center (1) according to claim 6, wherein a vertically downward radiating light source (14) is arranged above the optically transparent section. [8] Data center (1) according to one of the preceding claims, in which the warm aisle (6) extends above the row of switch cabinets (3) over the entire width of the interior of the container (2) and over the row of switch cabinets (3). [9] Data center (1) according to one of the preceding claims, wherein the warm aisle (6) extends between opposite vertical outer walls (9) of the container (2), wherein one of the outer walls (9) is the outer wall (9) with the at least one opening (8). [10] Data center (1) according to one of the preceding claims, in which the cooling air outlet (12) is arranged below a horizontal section of the partition (4) or a section extending at an acute angle to the horizontal. [11] Data center (1) according to one of the preceding claims, in which the cooling air outlet (12) is arranged opposite a cooling air inlet (15) of the switch cabinet row (3), wherein a warm air outlet (16) of the switch cabinet row (3) is arranged on a side of the switch cabinet row (3) arranged opposite the cooling air inlet (15) of the switch cabinet row (3). [12] Data center (1) according to one of the preceding claims, in which the air duct (19) opens into the warm air inlet (13) of the internal air circuit (10) of the cooling device (7). [13] Data center (1) according to one of the preceding claims, wherein the cooling device (7) comprises an open-air cooling system comprising a heat pipe or a heat pipe. [14] Data center (1) according to claim 13, wherein the cooling device (7) comprises a refrigeration machine in addition to the open-air cooling, wherein the open-air cooling and the refrigeration machine have separate refrigerant circuits. [15] Data center (1) according to claim 14, in which the two refrigerant circuits are controlled to provide a required cooling capacity by prioritizing the open-air cooling and depending on a power loss of the switch cabinet row and an ambient air temperature of the container (2).

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