Machine room channel closing system

Abstract

The utility model provides a machine room channel closing system, and relates to the technical field of data center machine room design. The machine room channel closing system comprises a first closed channel located above the machine cabinet and a second closed channel located below the machine cabinet, an air inlet of the first closed channel and an air inlet of the second closed channel are both communicated with an air supply outlet of the precise air conditioner, and the first closed channel and the second closed channel are both used for conveying cold airflow to the machine cabinet. The first closed channel is arranged above the cabinet and the second closed channel is arranged below the cabinet, so that cold air flow is conveyed in the upper direction and the lower direction at the same time, refrigeration on equipment in the cabinet is more uniform, the refrigeration effect on the equipment at the higher position of the cabinet is enhanced, a heat source in the cabinet is effectively covered, and the overall refrigeration effect is improved; in addition, due to the design of the closed channel, the flowing path of airflow is optimized, loss of cold airflow is reduced, and the refrigeration effect is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of data center room design, and particularly relates to a room passage sealing system. BACKGROUND

[0002] With the development of big data, artificial intelligence and other technologies, data center rooms are developing towards high density and high energy efficiency, and the density and height of the cabinets in the room are also increasing. The number of computer devices placed in a single cabinet also increases. At the same time, in order to meet the increasing demand for computing power, the power consumption of computer devices (such as personal computer PC servers, network switches, etc.) in the cabinet is also increasing. In order to reduce the power usage effectiveness (PUE) of the data center room, the data center room is more and more modularized, and the cold aisle and the hot aisle are sealed, and the air supply is used to cool the cabinet equipment to meet the increasing cooling demand of computer equipment.

[0003] However, the above-mentioned method has the problems of uneven cooling and poor cooling effect. UTILITY MODEL CONTENT

[0004] The room passage sealing system provided by the present application is used to realize uniform cooling and improve the cooling effect.

[0005] The present application provides a room passage sealing system, comprising: a first sealing passage located above the cabinet and a second sealing passage located below the cabinet, wherein the air inlet of the first sealing passage and the air inlet of the second sealing passage are in communication with the air outlet of the precision air conditioner, and the first sealing passage and the second sealing passage are used to deliver cold air flow to the cabinet.

[0006] In one possible implementation, a wind direction adjusting fan blade is arranged at the air outlet of the first sealing passage, and / or a wind direction adjusting fan blade is arranged at the air outlet of the second sealing passage.

[0007] In one possible implementation, the number of air outlets is multiple.

[0008] In one possible implementation, the second sealing passage is laid below the room raised floor.

[0009] In one possible implementation, strong electric cables are laid below the room raised floor, and the strong electric cables provide power for the precision air conditioner and the cabinet.

[0010] In one possible implementation, the first sealing passage is arranged in a longitudinal flat type and is arranged close to the rotation axis of the movable skylight, and the movable skylight is located above the sealed cold passage.

[0011] In a possible implementation, a fire-fighting gas conveying passage is arranged above the machine room passage sealing system, and the fire-fighting gas conveying passage is used to convey fire-fighting gas to the cabinet.

[0012] In a possible implementation, a first air supply passage in communication with the first sealing passage and a second air supply passage in communication with the second sealing passage are arranged at the air supply port.

[0013] In a possible implementation, the precision air conditioner is multiple groups, the air supply port of the first group of precision air conditioners is in communication with the first sealing passage, and the air supply port of the second group of precision air conditioners is in communication with the second sealing passage.

[0014] In a possible implementation, the machine room passage sealing system further comprises a third sealing passage used to discharge the hot air flow formed after the cabinet is cooled.

[0015] The machine room passage sealing system provided by the present application comprises a first sealing passage arranged above the cabinet and a second sealing passage arranged below the cabinet, wherein the air inlet of the first sealing passage and the air inlet of the second sealing passage are both in communication with the air supply port of the precision air conditioner, and the first sealing passage and the second sealing passage are both used to convey cold air flow to the cabinet. By arranging the first sealing passage above the cabinet and the second sealing passage below the cabinet, cold air flow is conveyed in the upward and downward directions at the same time, the equipment in the cabinet is cooled more uniformly, the cooling effect of the equipment at a higher position of the cabinet is enhanced, the heat source in the cabinet is effectively covered, and the overall cooling effect is improved. The design of the sealing passage optimizes the flow path of the air flow, reduces the loss of the cold air flow, and further improves the cooling effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate an embodiment consistent with the present application and, together with the description, serve to explain the principles of the application.

[0017] Figure 1 A structural schematic diagram of an upper air supply-front air return mode of the precision air conditioner;

[0018] Figure 2 A structural schematic diagram of an upper air supply-lower air return mode of the precision air conditioner;

[0019] Figure 3 A structural schematic diagram of an upper air supply-back air return mode of the precision air conditioner;

[0020] Figure 4 A structural schematic diagram of a lower air supply mode of the precision air conditioner;

[0021] Figure 5 A structural schematic diagram of the machine room passage sealing system provided by the present application;

[0022] Figure 6 A schematic view of a cross section of a longitudinal flat closed channel solution provided in the present application;

[0023] Figure 7 A schematic view of a perspective effect of a machine room channel closed system provided in the present application.

[0024] Reference signs:

[0025] 11: first closed channel; 12: second closed channel; 13: precision air conditioner; 14: cabinet; 15: air direction adjusting fan blade; 16: movable skylight; 17: rotating shaft.

[0026] The specific embodiments of the present application have been shown and described in the above drawings, and will be described in more detail hereinafter. These drawings and the written description are not intended to restrict the scope of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0027] It should be noted that the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0028] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the connection or interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0030] In the above description, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0031] First, let me explain the terms used in this application:

[0032] Computer room aisle enclosure system: generally refers to cold / hot aisle enclosure system, which is based on the principle of orderly flow of cold and hot air separation. The cold air is blown out from under the raised floor and enters the sealed cold aisle. The equipment at the front of the cabinet draws in the cold air, and after cooling the equipment, the resulting hot air is discharged from the rear of the cabinet to the hot aisle (third enclosure aisle).

[0033] Raised floor: Generally refers to an elevated floor, mainly assembled from adjustable supports, beams, panels, etc. When it is grounded or connected to any lower point, it allows electrical charges to dissipate.

[0034] PUE (Power Usage Effectiveness) is a metric for evaluating the energy efficiency of a data center. It is the ratio of all energy consumed by the data center to the energy consumed by the IT load. PUE = Total Data Center Energy Consumption / IT Equipment Energy Consumption. The total data center energy consumption includes the energy consumption of IT equipment and systems such as cooling and power distribution. A value greater than 1 indicates that the non-IT equipment consumes less energy, and the better the energy efficiency level.

[0035] Precision air conditioning: Precision air conditioning is a specialized air conditioning system designed for modern electronic equipment rooms. Its operating precision and reliability are far superior to ordinary air conditioning. Precision air conditioning systems are designed for precise temperature and humidity control. They offer high reliability, ensuring continuous operation year-round, and feature maintainability, assembly flexibility, and redundancy, guaranteeing the normal operation of the data center's air conditioning system throughout the year.

[0036] Due to the structure of the computer room itself, or the fixed location of other equipment in the computer room, precision air conditioning equipment must operate according to a specific supply and return air method to achieve the best effect. Commonly, there are top supply air-front return air schemes, top supply air-bottom return air schemes, top supply air-rear return air schemes, and bottom supply air schemes.

[0037] Specifically, Figure 1 This is a structural diagram of a precision air conditioner with a top-supply, front-return air mode, as shown below.Figure 1 As shown, the cold air is sent out from the top of the machine room by the precision air conditioner, and the cold air is distributed through the dedicated air duct. The cold air directly falls from the top to the equipment cabinet to cool the equipment. The hot air generated by the equipment cabinet is guided back to the air conditioning system through the return air outlet in the front of the cabinet for recycling and cooling. Figure 2 The structure diagram of the top air supply-bottom return air mode of the precision air conditioner is shown in Figure 2. Figure 2 As shown, the cold air is sent out from the top of the machine room by the precision air conditioner, and the cold air is distributed through the suspended ceiling space. The cold air directly falls from the top to the equipment cabinet to cool the equipment. The hot air generated by the equipment cabinet is guided back to the air conditioning system through the return air outlet under the electrostatic floor for recycling and cooling. Figure 3 The structure diagram of the top air supply-bottom return air mode of the precision air conditioner is shown in Figure 2. Figure 3 As shown, the cold air is sent out from the top of the machine room by the precision air conditioner, and the cold air is distributed through the suspended ceiling space. The cold air directly falls from the top to the equipment cabinet to cool the equipment. The hot air generated by the equipment cabinet is guided back to the air conditioning system through the return air outlet under the electrostatic floor for recycling and cooling. Figure 4 The structure diagram of the top air supply-bottom return air mode of the precision air conditioner is shown in Figure 2. Figure 4 As shown, the cold air is sent out from the top of the machine room by the precision air conditioner, and the cold air is distributed through the suspended ceiling space. The cold air directly falls from the top to the equipment cabinet to cool the equipment. The hot air generated by the equipment cabinet is guided back to the air conditioning system through the return air outlet under the electrostatic floor for recycling and cooling.

[0038] Compared with the first three schemes, the bottom air supply scheme has higher refrigeration efficiency. More and more data center machine rooms adopt modular machine room design, which seals the cold / heat channel and cools the cabinet equipment through the bottom floor air supply to meet the increasing heat dissipation demand of the equipment. Although this design is widely used in data center machine rooms, some disadvantages are still found in actual use, such as, due to the cold air flow from the floor channel to the upper end of the cabinet, the refrigeration capacity of the equipment at the higher position of the cabinet is obviously less than that of the equipment at the lower position of the cabinet, and the overall refrigeration of the machine room is limited by the refrigeration demand of the equipment at the higher position of the cabinet.

[0039] In view of the above technical problems, the machine room channel sealing system provided by the present application seals the first channel above the cabinet and the second channel below the cabinet to simultaneously transport cold air flow in the upward and downward directions, which is more uniform in cooling the equipment in the cabinet, enhances the refrigeration effect of the equipment at the higher position of the cabinet, effectively covers the heat source in the cabinet, and improves the refrigeration effect. The design of the sealed channel optimizes the flow path of the air flow, reduces the loss of cold air flow, and further improves the refrigeration effect.

[0040] The technical solutions of the present application and how the technical solutions solve the above technical problems will be described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes can not be described again in some examples. The embodiments of the present application will be described below with reference to the drawings.

[0041] Figure 5 The structural schematic diagram of the machine room passage sealing system provided by the present application is shown in FIG. 1, which comprises a first sealing passage 11 above the cabinet and a second sealing passage 12 below the cabinet. The air inlet of the first sealing passage 11 and the air inlet of the second sealing passage 12 are both in communication with the air outlet of the precision air conditioner 13, and the first sealing passage 11 and the second sealing passage 12 are both used for delivering cold air flow to the cabinet 14. Figure 5

[0042] For example, the cabinets 14 are arranged in the machine room to form one or more cabinet rows, the first sealing passage 11 is arranged above the cabinet row and extends along the length direction of the cabinet row. The air inlet of the first sealing passage 11 is connected to the air outlet of the precision air conditioner 13 through a pipe or air duct, and the air outlet of the first sealing passage 11 faces the top of the cabinet 14, thereby maximizing the cold air flow directly into the cabinet to cool the heat source (equipment) at the high position area in the cabinet.

[0043] The second sealing passage 12 is arranged below the cabinet row and extends along the length direction of the cabinet row. Similar to the first sealing passage 11, the air inlet of the second sealing passage 12 is also connected to the air outlet of the precision air conditioner 13 through a pipe or air duct, and the air outlet of the second sealing passage 12 faces the bottom of the cabinet 14, thereby ensuring that the cold air flow enters the cabinet from below to cool the heat source (equipment) at the low position area in the cabinet.

[0044] The precision air conditioner 13 is responsible for generating cold air flow, which enters the first sealing passage 11 and the second sealing passage 12 through the air outlet, thereby simultaneously entering the top area of the cabinet 14 and the bottom area of the cabinet 14.

[0045] It should be noted that the first sealing passage 11, the second sealing passage 12 and the cabinet 14 together form a closed system, as shown in FIG. 2, in which the cold air flow area between the two rows of cabinets is regarded as a closed cold passage. Figure 5

[0046] It should be noted that Figure 5 This is only an illustrative diagram and does not constitute a limitation on the number of cabinets and precision air conditioners, nor does it constitute a limitation on the specific structure of the machine room passage sealing system.

[0047] ​​The embodiments of the present application optimize the flow path of the air flow, reduce the loss of cold air flow, effectively deliver cold air flow to the cabinet, and further improve the refrigeration effect by the design of the closed channel. The cold air flow generated by the precision air conditioner directly enters the first closed channel and the second closed channel, and the equipment in the cabinet is cooled more uniformly by the simultaneous cooling in the upward and downward directions, thereby enhancing the refrigeration effect of the equipment at a higher position of the cabinet, realizing efficient cooling, and further ensuring that the equipment in the cabinet operates in a suitable temperature range and improves the performance of the equipment. In addition, the PUE value of the data center is reduced.

[0048] In some embodiments, a wind direction adjusting fan blade 15 is arranged at the air outlet of the first closed channel 11, and / or a wind direction adjusting fan blade 15 is arranged at the air outlet of the second closed channel 12.

[0049] The wind direction adjusting fan blade 15 can control the direction and distribution of the cold air flow. The fan blade can be made of light and durable materials, which can maintain reliability in long-term use, and the angle of the fan blade can be adjusted as needed. By changing the direction of the fan blade, the direction of the cold air flow sent to the cabinet is adjusted to ensure uniform cooling.

[0050] The wind direction adjusting fan blade 15 at the air outlet of the first closed channel 11 can adjust the downward flow direction of the cold air flow, and the wind direction adjusting fan blade 15 at the air outlet of the second closed channel 12 can optimize the bottom distribution of the cold air flow to more accurately cover the equipment in the cabinet 14.

[0051] For example, a wind direction adjusting fan blade 15 is arranged at the air outlet of the first closed channel 11, or a wind direction adjusting fan blade 15 is arranged at the air outlet of the second closed channel 12, or a wind direction adjusting fan blade 15 is arranged at the air outlet of the first closed channel 11 and the air outlet of the second closed channel 12.

[0052] The embodiments of the present application can more accurately deliver cold air to the area that needs to be cooled by using the wind direction adjusting fan blade, reduce the waste of cold air, and achieve the best refrigeration effect. The optimized air flow direction improves the overall energy efficiency of the machine room, reduces energy consumption, realizes more efficient cooling and temperature management, and further ensures that the equipment in the cabinet operates stably in a suitable temperature range.

[0053] In some embodiments, the number of air outlets is multiple.

[0054] For example, multiple air outlets are arranged in the first closed channel, and a wind direction adjusting fan blade can be installed at each air outlet. Multiple air outlets allow cold air flow to enter the top of the cabinet at different positions. The wind direction adjusting fan blade of each air outlet can be independently adjusted to achieve precise air flow distribution.

[0055] The second closed channel can also be equipped with multiple air outlets, each of which can be installed with a wind direction adjusting fan blade. Multiple air outlets also allow cold air to enter the bottom of the cabinet at different positions, ensuring uniform cooling.

[0056] The embodiments of the present application achieve more uniform cooling effect by providing multiple air outlets in the first closed channel and the second closed channel. This helps to avoid local hot spots in the cabinet and maximizes the operation of all devices at the best temperature; through the design of multiple air outlets, the cold air flow can directly reach the area that needs to be cooled, reducing the invalid circulation and loss of cold air flow in the computer room, thereby improving the overall cooling efficiency; the design of multiple air outlets enables the system to adapt to different computer room layouts and device configurations, providing greater design and operation flexibility.

[0057] In some embodiments, the second closed channel is laid under the raised floor of the computer room.

[0058] Laying the second closed channel under the raised floor of the computer room effectively utilizes the vertical space of the computer room without occupying the ground space, improving the space utilization; it helps to isolate noise and air flow interference. In addition, in the related art, data centers generally use the space under the raised floor as an air conditioning air supply channel. However, this air supply channel is relatively open, which will cause a certain loss of cold energy. In contrast, the design of the present application uses an independent closed pipeline laid in the space under the floor as an air supply channel, which optimizes the air flow organization of the cold channel, reduces the consumption on the cold energy transmission path, and improves the cooling effect of the computer room.

[0059] In some embodiments, strong electric cables are laid under the raised floor of the computer room, which provide power for the precision air conditioner and the cabinet.

[0060] Among them, strong electric cables generally refer to cables used to transmit high voltage or large current, mainly used to provide power for large equipment and systems. These cables are widely used in data centers, industrial facilities and commercial buildings, especially in environments that require stable power supply for devices such as precision air conditioners, server cabinets, etc.

[0061] The independent second closed channel under the raised floor of the computer room can be laid with strong electric cables in the remaining space under the floor.

[0062] In order to reduce the cold loss of the underfloor space air supply, in the related art, the machine room passage sealing system mostly adopts a structure of strong and weak current line routing, that is, the strong and weak current lines are both laid in the double-layer bridge above the cabinet. This way has a large pressure on the bridge, and increases the difficulty of construction and maintenance. The embodiment of the present application, on the basis of laying an independent duct air supply under the overhead floor of the machine room, lays the strong current cable in the remaining underfloor space to form a strong current cable under-routing and weak current line over-routing mode for wiring, ensures the refrigeration efficiency of the second sealed passage, and improves the convenience of construction and maintenance and efficient space management.

[0063] In actual data center machine room design, usually, an active skylight is arranged in the area above the cabinet (sealed cold aisle), and the active skylight is used to transport fire-fighting gas (for example, inert gas) into the sealed cold aisle when the machine room fire-fighting system is started. For example, an electromagnet is arranged on the active skylight, and the active skylight is magnetized and kept in a closed state when powered. If a fire signal is encountered, the electromagnet is de-energized, the connecting shaft of the active skylight eccentrically rotates and flips under the action of gravity, and the active skylight is opened. However, if the first sealed passage is added above the cabinet, it may hinder the free flipping of the active skylight of the machine room passage sealing system. In addition, even if the active skylight can normally flip, if the first sealed passage is too wide, it may block the air inlet of the active skylight, so that the fire-fighting gas cannot smoothly enter the sealed cold aisle. In one example, the active skylight is arranged above the first sealed passage, and when the machine room fire-fighting system is started, the active skylight cannot be opened under the action of gravity by de-energizing the electromagnet of the active skylight. In another example, the active skylight is arranged below the first sealed passage, and when the machine room fire-fighting system is started, the active skylight is opened under the action of gravity by de-energizing the electromagnet of the active skylight. However, the active skylight is too wide, and blocks the air inlet of the active skylight.

[0064] To solve this problem, in one implementation, the first sealed passage is arranged in a longitudinal flat type, and is arranged close to the rotating shaft of the active skylight. The active skylight is arranged above the sealed cold aisle.

[0065] The flat type is specifically short width and long height, for example, Figure 6 As shown in the cross-sectional view of the longitudinal flat type sealed passage scheme provided by the present application, the short side of the first sealed passage 11 is arranged in the horizontal direction (X direction), and the long side is arranged in the vertical direction (Y direction). The first sealed passage 11 is arranged close to the rotating shaft 17 of the active skylight 16. In the process of the active skylight 16 flipping from the horizontal direction to the vertical direction around the rotating shaft 17, the first sealed passage 11 does not block the active skylight 16.

[0066] It should be noted that, Figure 6 The active skylight is arranged above the first sealed passage.

[0067] In the embodiments of the present application, the first closed passage is designed in a longitudinal flat type and is arranged close to the rotating shaft of the movable skylight, so as to avoid the first closed passage from blocking the opening of the movable skylight in the machine room passage closing system and / or shielding the air inlet of the movable skylight, thereby improving the fire safety of the cabinet. In addition, the flat design maximizes the use of vertical space and realizes space optimization.

[0068] In another implementation manner, a fire-fighting gas conveying passage is arranged above the machine room passage closing system, and the fire-fighting gas conveying passage is used to convey fire-fighting gas to the cabinet.

[0069] It can be considered that a dedicated fire-fighting gas conveying passage is arranged to replace the function of the movable skylight. In order to make the first closed passage more smoothly provide cold air flow to the cabinet, the fire-fighting gas conveying passage is arranged in the upper region of the first closed passage, so as to avoid blocking the output of cold air flow from the first closed passage to the cabinet and affecting the refrigeration effect. That is, the fire-fighting gas conveying passage is arranged above the machine room passage closing system. When the machine room fire-fighting system is started, the fire-fighting gas conveying passage is used to convey fire-fighting gas to the cabinet. A plurality of air outlets can also be arranged on the fire-fighting gas conveying passage, and a wind direction adjusting fan blade can also be arranged on each air outlet to control the flow direction and distribution of the fire-fighting gas.

[0070] In some implementation manners, the fire-fighting gas conveying passage can also be arranged on the same horizontal plane as the first closed passage and arranged side by side. When arranged, the fire-fighting gas conveying passage is spaced apart from the first closed passage by a certain distance, so as to avoid affecting the conveying of cold air flow from the first closed passage to the cabinet.

[0071] In the embodiments of the present application, the fire-fighting gas conveying passage and the machine room passage closing system are integrated together, which maximizes the use of vertical space and reduces the occupation of ground space. By arranging a dedicated fire-fighting gas conveying passage above the machine room passage closing system, the fire-fighting gas can be effectively conveyed to the cabinet, so as to quickly control the fire when the fire occurs, reduce the risk of equipment damage and data loss, and improve the safety of the entire machine room.

[0072] In some embodiments, a first air supply passage in communication with the first closed passage and a second air supply passage in communication with the second closed passage are arranged at the air supply port.

[0073] For example, a large and precise air conditioner is placed in the machine room, and the refrigeration capacity of the precise air conditioner meets the refrigeration demand of the machine room.

[0074] At the air supply outlet of the precision air conditioner, the air flow path is optimized and adjusted. First air supply channel and second air supply channel are provided at the air supply outlet, which can be made of light and durable materials, and can also be equipped with adjustable air direction guide plates or dampers to better optimize the air flow path and distribution. For example, when there are fewer devices in the cabinet, or according to the placement position of the devices in the cabinet (located at the low or high position of the cabinet), the first air supply channel or the second air supply channel can be selectively turned on or off.

[0075] Further, the first air supply channel is in communication with the first closed channel to directly deliver cold air flow to the top area of the cabinet to cool the heat source (device) at the high position in the cabinet, and the second air supply channel is in communication with the second closed channel to deliver cold air flow to the bottom area of the cabinet to cool the heat source (device) at the low position in the cabinet.

[0076] In the embodiments of the present application, by providing the first air supply channel in communication with the first closed channel and the second air supply channel in communication with the second closed channel at the air supply outlet of the precision air conditioner, more accurate and efficient air flow management can be achieved. This design strategy helps to optimize air flow distribution, optimize cooling effect, and improve energy efficiency. In addition, it allows adjustment according to the layout of the machine room and the configuration of the devices to provide greater flexibility to adapt to different cooling needs.

[0077] In some embodiments, the precision air conditioner is in multiple groups, the air supply outlet of the first group of precision air conditioners is in communication with the first closed channel, and the air supply outlet of the second group of precision air conditioners is in communication with the second closed channel.

[0078] For example, two groups of large precision air conditioners are placed in the machine room, each group can include at least one precision air conditioner, for example, the first group includes precision air conditioner 1 and precision air conditioner 2, and the second group includes precision air conditioner 3 and precision air conditioner 4. The air supply outlets of precision air conditioner 1 and precision air conditioner 3 are both in communication with the first closed channel to directly deliver cold air flow to the top area of the cabinet to cool the heat source (device) at the high position in the cabinet; the air supply outlets of precision air conditioner 2 and precision air conditioner 4 are in communication with the second closed channel to deliver cold air flow to the bottom area of the cabinet to cool the heat source (device) at the low position in the cabinet.

[0079] That is, the cold air flow in the first closed channel and the second closed channel is provided by different precision air conditioners, and the redundant design provides higher reliability. If one group of precision air conditioners cannot cool due to failure or maintenance, the other group of precision air conditioners can still continue to deliver cold air flow to the first closed channel and the second closed channel to ensure the normal operation of the devices in the machine room closed system.

[0080] It should be noted that the connection of the precision air conditioner group and the closed channel can be reasonably allocated according to the heat load distribution and device configuration of the machine room.

[0081] In some embodiments, the machine room passage sealing system further comprises a third sealing passage for discharging the hot air flow formed after the cooling of the cabinet.

[0082] For example, the third sealing passage is located at the rear end of the cabinet. The first sealing passage and the second sealing passage respectively transport the cold air flow from above and below the cabinet, and the hot air flow formed after the cooling of the equipment in the cabinet is discharged from the rear end of the cabinet to the third sealing passage. It can be understood that the third sealing passage is provided with a plurality of air inlets for collecting the hot air flow discharged from the cabinet, and finally outputting the hot air flow to the outdoor or guiding the hot air flow to the return air inlet of the air conditioning system for cooling.

[0083] In the embodiments of the present application, the hot air flow can be effectively guided and discharged through the independent third sealing passage, so as to avoid the backflow of the hot air flow to the first sealing passage and / or the second sealing passage, realize the optimized management of the air flow, improve the refrigeration effect of the equipment in the cabinet, and thus reduce the PUE value of the data center.

[0084] Finally, by Figure 7 further illustrating the machine room passage sealing system, Figure 7 a perspective effect schematic diagram of the machine room passage sealing system provided by the present application is provided.

[0085] As Figure 7 shown, the flow path of the cold air flow includes the upper, lower and front end of the cabinet (see the direction of the cold air flow shown in Figure 7 ). The cold air flow is output through the first sealing passage located above the cabinet and the second sealing passage located below the cabinet (below the raised floor of the machine room). After entering the cabinet from the front end of the cabinet, the hot air flow formed after the cooling of the equipment in the cabinet is discharged from the rear end of the cabinet (see the direction of the hot air flow shown in Figure 7 ), and the hot air flow enters the third sealing passage (not shown in the figure). The fire-fighting gas conveying passage conveys the fire-fighting gas for the machine room sealing system.

[0086] In summary, the present application has at least the following advantages:

[0087] I. Optimizing the air flow organization of the machine room sealing passage and improving the overall refrigeration efficiency of the machine room.

[0088] II. Improving the defect that the refrigeration effect is weak at the higher position of the cabinet in the current machine room, and improving the heat dissipation effect of the equipment at the higher position of the cabinet.

[0089] III. Supporting the use of high-density cabinets with higher height in the machine room to meet the increasing demand for computing power of the data center.

[0090] Four, support to expand the selection range of the position of high-power equipment in the cabinet, through the application, the high-power equipment originally usually placed at the low position of the cabinet due to the heat dissipation problem can be placed at any position of the cabinet, which provides convenience for the equipment position planning of the machine room.

[0091] Five, in order to reduce the cold loss of the air supply in the space under the floor, the current machine room passage sealing system mostly adopts the upper wiring structure of the double-layer bridge of the strong and weak electric lines laid above the cabinet. This way is large in pressure on the bridge, increases the difficulty of construction and maintenance. And the application adopts the mode of laying independent passage air supply under the raised floor, can lay strong electric cables in the remaining space under the floor, forms the mode of strong electric cable lower wiring and weak electric line upper wiring, to carry out wiring, ensures the refrigeration efficiency of the second sealed passage, and improves the convenience of construction and maintenance.

[0092] Finally, it should be noted that: other embodiments of the application will be readily apparent to those skilled in the art with the consideration of the specification and practice of the application disclosed herein. The application is intended to cover any variations, uses or adaptive changes of the application following the general principles of the application and including common knowledge or conventional technical means in the art which are not disclosed in the application, and is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the application is only limited by the appended claims.

Claims

1. A computer room access control system, characterized in that, include: The first enclosed channel is located above the cabinet and the second enclosed channel is located below the cabinet. The air inlets of the first enclosed channel and the second enclosed channel are both connected to the air outlets of the precision air conditioner. Both the first enclosed channel and the second enclosed channel are used to deliver cold air to the cabinet.

2. The computer room access control system according to claim 1, characterized in that, Airflow adjustment fan blades are installed at the air outlet of the first enclosed channel, and / or airflow adjustment fan blades are installed at the air outlet of the second enclosed channel.

3. The computer room access control system according to claim 2, characterized in that, The number of air outlets is multiple.

4. The computer room access control system according to any one of claims 1 to 3, characterized in that, The first enclosed passage is configured as a longitudinally flat type and is positioned close to the rotation axis of the movable skylight, which is located above the enclosed cold passage.

5. The computer room access control system according to any one of claims 1 to 3, characterized in that, A fire-fighting gas delivery channel is provided above the computer room access enclosure system, and the fire-fighting gas delivery channel is used to deliver fire-fighting gas to the cabinet.

6. The computer room access control system according to any one of claims 1 to 3, characterized in that, The second enclosed passage is laid under the raised floor of the computer room.

7. The computer room access control system according to claim 6, characterized in that, Power cables are laid under the raised floor of the computer room to provide power to the precision air conditioner and the server rack.

8. The computer room access control system according to any one of claims 1 to 3, characterized in that, The air outlet is provided with a first air supply channel that communicates with the first closed channel and a second air supply channel that communicates with the second closed channel.

9. The computer room access control system according to any one of claims 1 to 3, characterized in that, The precision air conditioner consists of multiple sets. The air outlet of the first set of precision air conditioners is connected to the first closed channel, and the air outlet of the second set of precision air conditioners is connected to the second closed channel.

10. The computer room access control system according to any one of claims 1 to 3, characterized in that, The computer room access enclosure system also includes a third enclosure channel, which is used to exhaust the hot airflow generated after the cabinet is cooled.

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