Air supply system, data center and air supply method

Abstract

The embodiment of the invention discloses an air supply system, a data center and an air supply method. The air supply system comprises a draught fan and a first diffusion component, the first diffusion component and an air outlet of the draught fan are fixed at an interval, and air supply air flow sent out by the draught fan is diffused through the first diffusion component to form first diffusion air flow; the first diffusion component comprises a plurality of first blades, the first blades are arranged at intervals in the first direction, and the length direction of each first blade is parallel to the second direction intersecting with the first direction; each first blade comprises a first air inlet side edge close to the fan and a first air outlet side edge far away from the fan; in the first direction, the distance between the first air inlet side edges of any two adjacent first blades is smaller than or equal to the distance between the first air outlet side edges. According to the air supply system, the air supply airflow sent out by the draught fan can be evenly diffused in a shape mode through the diffusion component, and air is evenly output under low energy consumption.

Description

Technical Field

[0001] The present application relates to the field of air supply and heat dissipation, and in particular to an air supply system, a data center equipped with the air supply system, and an air supply method applied to the air supply system. Background Art

[0002] For indoor scenes where heat sources are concentrated, it is usually necessary to dissipate heat in the area where the heat sources are located. Take a data center as an example. There are multiple servers arranged in the computer room of the data center. These servers generate a lot of heat during operation. The air supply system of the data center can extract air to form a supply air flow, and through the uniform discharge of the supply air flow, it ensures that the servers in the data center can operate normally in the preset temperature environment.

[0003] The air supply system currently used usually generates a high and concentrated forward airflow by a fan, and uses a perforated plate directly opposite the air outlet of the fan to reduce the velocity of the airflow reaching the perforated plate, thereby reducing the wind speed. After that, based on the static pressure potential energy formed in the hot and cold channels, the airflow direction is changed to achieve the purpose of uniform air outlet at each position. However, this multi-hole plate pressure equalization scheme has a great impact on the air supply volume of the fan. For example, in a data center scenario, the remote cabinet will have insufficient air supply volume, and the cold channel has a significant negative pressure relative to the hot channel, resulting in serious hot air reflux in the cabinet, and local hot spots in the server, making it impossible to meet the preset air supply and return air temperature difference in the data center, resulting in the servers in the data center being unable to operate normally in the preset temperature environment. In order to meet the set supply and return air temperature difference and air supply volume, due to the large wind resistance of the orifice plate, the fan needs to increase the frequency and speed up to meet the requirements, resulting in increased energy consumption.

[0004] Contents of this application

[0005] The embodiments of the present application provide an air supply system, a data center, and an air supply method. The air supply system of the present application can reduce energy consumption and achieve uniform air flow, and specifically includes the following technical solutions:

[0006] In a first aspect, the present application provides a device including a fan and a first diffusion component; the first diffusion component is fixedly spaced from an air outlet of the fan, and the air supply airflow delivered by the fan is diffused through the first diffusion component to form a first diffused airflow;

[0007] The first diffusion component includes a plurality of first blades, the plurality of first blades are arranged at intervals along a first direction, and the length direction of each first blade is parallel to a second direction; the first direction intersects with the second direction;

[0008] Each first blade includes a first air inlet side close to the fan and a first air outlet side away from the fan; wherein, along the first direction, the distance between the first air inlet sides of any two adjacent first blades is less than or equal to the distance between the first air outlet sides.

[0009] In a possible implementation, a distance between the first air inlet side edges and a distance between the first air outlet side edges of any two adjacent first blades in the first diffusion component have a distance difference, and the distance difference between the two adjacent first blades increases in the first direction; or,

[0010] There is a distance difference between the first air inlet side edges and the first air outlet side edges of two adjacent first blades in the first diffusion component, and the distance difference between the two adjacent first blades is in an increasing relationship in a direction extending from the center position of the first diffusion component to both sides along the first direction; or,

[0011] Each first blade in the first diffusion component has its own blade inclination angle, and the blade inclination angles of two adjacent first blades are in increasing relationship in the first direction; or,

[0012] Each first blade in the first diffusion component has its own blade inclination angle, and in the direction extending from the center position of the first diffusion component to both sides along the first direction, the blade inclination angles of two adjacent first blades in the first diffusion component are in an increasing relationship;

[0013] The blade inclination angle of the first blade refers to the angle between the plane where the length direction of the first blade is located and the plane where the second direction is located.

[0014] In one possible implementation, each first blade in the first diffusion component has its own blade inclination angle, and the blade inclination angle of any first blade can be adjusted; by adjusting the blade inclination angle of each first blade, the direction and / or speed of the first diffusion airflow can be changed.

[0015] In a possible implementation, the air supply system further includes a flexible connection, which is provided between the air outlet of the fan and the first diffusion component, and the shape and size of the flexible connection are the same as those of the air outlet of the fan.

[0016] In a possible implementation, the air supply system further includes: a second diffusion component; the first diffusion component and the second diffusion component are arranged at intervals, and the first diffusion airflow sent by the first diffusion component is diffused by the second diffusion component to form a second diffusion airflow;

[0017] The second diffusion component includes a plurality of second blades, the plurality of second blades are arranged at intervals along the second direction, and the length direction of each second blade is parallel to the first direction;

[0018] Each second blade includes a second air inlet side close to the fan and a second air outlet side away from the fan; wherein, along the second direction, the distance between the second air inlet sides of any two adjacent second blades is less than or equal to the distance between the second air outlet sides.

[0019] In a possible implementation, the distance between the second air inlet side edges and the distance between the second air outlet side edges of any two adjacent second blades in the second diffusion component have a distance difference, and the distance difference between the two adjacent second blades increases in the second direction; or,

[0020] There is a distance difference between the second air inlet side edges and the second air outlet side edges of any two adjacent second blades in the second diffusion component, and the distance difference between the two adjacent second blades is in an increasing relationship in a direction extending from the center position of the second diffusion component to both sides along the second direction; or,

[0021] Each second blade in the second diffusion component has its own blade inclination angle, and the blade inclination angles of two adjacent blades are in increasing relationship in the second direction; or,

[0022] Each second blade in the second diffusion component has its own blade inclination angle, and in the direction extending from the center position of the second diffusion component to both sides along the second direction, the blade inclination angles of two adjacent second blades in the second diffusion component are in an increasing relationship;

[0023] The blade inclination angle of the second blade refers to the angle between the plane where the length direction of the second blade is located and the plane where the first direction is located.

[0024] In one possible implementation, each second blade in the second diffusion component has its own blade inclination angle, and the blade inclination angle of any second blade can be adjusted; by adjusting the blade inclination angle of each second blade, the direction and / or speed of the second diffusion airflow can be changed.

[0025] In a possible implementation, the first diffusion component and the second diffusion component are both guide air valves, and the plurality of first blades of the first diffusion component include: a louver with a blade inclination angle support adjustment, or a guide plate with a fixed blade inclination angle; the plurality of second blades of the second diffusion component include: a louver with a blade inclination angle support adjustment, or a guide plate with a fixed blade inclination angle;

[0026] The intersection between the first direction and the second direction includes: a perpendicular intersection.

[0027] In a possible implementation, the air supply system further includes: a first air supply duct, the first air supply duct being arranged between the first diffusion component and the second diffusion component; the first diffusion airflow delivered by the first diffusion component is transferred to the second diffusion component after being guided by the first air supply duct;

[0028] The first air supply duct is a three-dimensional structure with two openings at both ends, one of which is an air inlet end and the other is an air outlet end. The air inlet end of the first air supply duct is arranged at the air outlet side of the first diffusion component, and the air outlet end of the first air supply duct is arranged at the air inlet side of the second diffusion component.

[0029] The first diffusion airflow sent out by the first diffusion component flows into the first air supply duct from the air inlet end of the first air supply duct, and then is guided to the second diffusion component through the air outlet end of the first air supply duct.

[0030] In one possible implementation, the cross-sectional area of ​​the first air supply duct at the air inlet end is greater than or equal to the cross-sectional area of ​​the air outlet side of the first diffusion component; the cross-sectional area of ​​the air inlet side of the second diffusion component is greater than or equal to the cross-sectional area of ​​the first air supply duct at the air outlet end.

[0031] In a possible implementation, the air supply system further includes: a second air supply duct, the second air supply duct being a three-dimensional structure with two openings, one of the openings being an air inlet end, and the other opening being an air outlet end;

[0032] The air inlet end of the second air supply duct is arranged on the air outlet side of the second diffusion component; the second diffusion airflow delivered by the second diffusion component flows into the second air supply duct from the air inlet end of the second air supply duct, and then flows out through the air outlet end of the second air supply duct.

[0033] In a possible implementation, the air supply system includes a first air supply duct and a second air supply duct; the first air supply duct and the second air supply duct are both three-dimensional structures with openings at both ends, the three-dimensional structure of the first air supply duct is a first three-dimensional structure, and the three-dimensional structure of the second air supply duct is a second three-dimensional structure;

[0034] The first three-dimensional structure and the second three-dimensional structure are the same or different; the first three-dimensional structure includes: one of a step structure, a rectangular parallelepiped structure and a cube structure; the second three-dimensional structure includes: one of a step structure, a rectangular parallelepiped structure and a cube structure.

[0035] In a possible implementation, the first air supply duct is disposed between the first diffusion component and the second diffusion component; the three-dimensional structure of the first air supply duct is a step structure; the first air supply duct has at least one side wall having an inclination angle relative to the plane where the second direction is located, and the inclination angle of the side wall of the first air supply duct makes the first air supply duct expand at the air outlet end relative to the air inlet end of the first air supply duct;

[0036] The inclination angle of the side wall of the first air supply duct is less than a first preset angle threshold; the first blade in the first diffusion component is less than the first preset distance threshold from the side wall of the second air supply duct in the first direction, and the angle difference between the corresponding blade inclination angle and the inclination angle of the side wall of the first air supply duct is less than the angle difference threshold.

[0037] In a possible implementation, the second air supply duct is arranged on the air outlet side of the second diffusion component, the three-dimensional structure of the second air supply duct is a step structure, the second air supply duct has at least one side wall with an inclination angle relative to the plane where the first direction is located, and the inclination angle of the side wall of the second air supply duct makes the second air supply duct expand at the air outlet end relative to the air inlet end of the second air supply duct;

[0038] The inclination angle of the side wall of the second air supply duct is less than a second preset angle threshold; the second blade in the second diffusion component is at a distance less than a second preset distance threshold from the side wall of the second air supply duct in the second direction, and the angle difference between the corresponding blade inclination angle and the inclination angle of the side wall of the second air supply duct is less than the angle difference threshold.

[0039] In a possible implementation, the three-dimensional structure of the first air supply duct is a rectangular parallelepiped structure or a cube structure;

[0040] The first air supply duct and the second air supply duct are both arranged between the first diffusion component and the second diffusion component, the air inlet end of the first air supply duct is arranged on the air outlet side of the first diffusion component, the air outlet end of the first air supply duct is connected to the air inlet end of the second air supply duct, and the air outlet end of the second air supply duct is arranged on the air inlet side of the second diffusion component; or,

[0041] The first air supply duct is arranged between the fan and the first diffusion component, and the second air supply duct is arranged between the first diffusion component and the second diffusion component; the air outlet end of the first air supply duct is arranged at the air inlet side of the first diffusion component, the air inlet end of the second air supply duct is arranged at the air outlet side of the first diffusion component, and the air outlet end of the second air supply duct is arranged at the air inlet side of the second diffusion component; or,

[0042] The first air supply duct and the second air supply duct are both arranged between the fan and the first diffusion component, the air inlet end of the first air supply duct is arranged at the air outlet of the fan, the air outlet end of the first air supply duct is connected to the air inlet end of the second air supply duct, and the air outlet end of the second air supply duct is arranged on the air inlet side of the first diffusion component.

[0043] In a possible implementation, the air supply system further includes an air supply plate, which is arranged on one side of the air supply airflow delivered by the fan, and the air supply airflow delivered by the fan flows into the machine room through the air supply plate after being diffused;

[0044] The air supply plate includes a plurality of air supply blades, the plurality of air supply blades are arranged at intervals along the second direction, and the length direction of each air supply blade is parallel to the first direction; or,

[0045] The air supply plate includes an air filter, and the angle of the mesh sheet of the air filter is fixed.

[0046] In a possible implementation, the air supply system further includes a fire damper; the fire damper is arranged on a side of the air supply airflow delivered by the fan, and a transfer space is formed between the fire damper and the air supply plate at a fixed interval;

[0047] Among them, when the fire damper is opened, the supply air flow sent by the fan is allowed to flow into the machine room after diffusion; when the fire damper is closed, the supply air flow sent by the fan is blocked from flowing into the machine room after diffusion.

[0048] In a possible implementation, the computer room is provided with multiple air supply systems, and the air supply systems are arranged at intervals;

[0049] If two adjacent air supply systems are both provided with air supply ducts, and there is intersection between the side walls of the air supply ducts in the two adjacent air supply systems, then the intersection point is located in the transfer space;

[0050] If two adjacent air supply systems are both provided with diffusion components, the intersection of the extended lines of the blade inclination angles of adjacent blades in the diffusion components of the two adjacent air supply systems is located in the transfer space.

[0051] In a second aspect, the present application provides a data center, including a computer room and the air supply system provided in the first aspect of the present application; wherein an air outlet of the fan is connected to the interior of the computer room.

[0052] In a third aspect, the present application provides an air supply method, which is applied to the air supply system provided in the first aspect of the present application, comprising:

[0053] The air supply airflow is sent out through the fan;

[0054] diffusing the air supply airflow to form a diffused airflow;

[0055] The diffused airflow is sent into the machine room.

[0056] In the above technical scheme, the embodiment of the present application provides such an air supply system: the air supply system includes a fan and a first diffusion component, the first diffusion component is fixedly spaced from the air outlet of the fan, and by arranging the first diffusion component on one side of the air outlet of the fan, the air supply airflow sent by the fan can be diffused in the air supply path to form a first diffused airflow, and the air supply airflow sent by the fan can also be decelerated. The specific structure for achieving the above effect includes the following contents: the first diffusion component includes first blades arranged at intervals along a first direction (for example, a vertical direction), and the length direction of each first blade is parallel to a second direction (for example, a horizontal direction) intersecting with the first direction, and each first blade includes two sides: a first air inlet side close to the fan and a first air outlet side away from the fan, and along the first direction, the distance between the first air inlet sides of two adjacent first blades is less than or equal to the distance between the first air outlet sides. In this way, the two adjacent first blades in the first diffusion component can form an opening parallel to the second direction based on the distance between the two side edges. When the supply air flow sent by the fan passes through the first diffusion component, the direction of the supply air flow can be changed through the formed opening, and the opening formed by each blade can make the supply air flow evenly diffused. The effective through-porosity of the opening is larger than that of the hole shape, and the resistance loss of the supply air flow when passing through the first diffusion component can also be smaller, thereby effectively reducing wind resistance and ensuring the supply air volume, with lower overall energy consumption and better uniform flow effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0058] Figure 1 A schematic diagram of an application scenario of an air supply system provided in this application applied to a data center;

[0059] Figure 2 A schematic diagram of the elevation structure of an air supply system provided in this application;

[0060] Figure 3 A schematic diagram of the elevation structure of another air supply system provided for this application;

[0061] Figure 4 A schematic diagram of the diffusion of an air supply airflow provided in this application;

[0062] Figure 5 A schematic diagram of the elevation structure of another air supply system provided in this application;

[0063] Figure 6 A schematic diagram of the planar structure of an air supply system provided in this application;

[0064] Figure 7a A simplified schematic diagram of the facade structure of an air supply system provided in this application;

[0065] Figure 7b A simplified schematic diagram of the facade structure of another air supply system provided in this application;

[0066] Figure 7c A simplified schematic diagram of the facade structure of another air supply system provided in this application;

[0067] Figure 8a A schematic diagram of the elevation structure of another air supply system provided in this application;

[0068] Figure 8b A schematic diagram of the structure of an air supply plate provided in this application;

[0069] Figure 8c A schematic diagram of the airflow direction of a diffused airflow after passing through an air supply plate provided in the present application;

[0070] Figure 8d A schematic cross-sectional structure diagram of an air supply system provided in this application;

[0071] Figure 9a A schematic diagram of the planar structure of multiple air supply systems provided in this application;

[0072] Figure 9b A schematic diagram of the intersection of the side walls of the air supply ducts of two adjacent air supply systems provided in the present application;

[0073] Fig.9c A schematic diagram showing that the intersection of the extension lines of adjacent blades in the diffusion components of two adjacent air supply systems provided by the present application is located in the transfer space;

[0074] Fig.10a A schematic diagram of the planar structure of a porous plate solution provided in this application;

[0075] Fig.10b A schematic diagram of the elevation structure of a porous plate solution provided in this application;

[0076] Fig.10c A schematic diagram for comparing the structures of a porous plate solution and a louver solution provided in this application. DETAILED DESCRIPTION

[0077] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0078] The air supply system can be divided according to its functions, and may include a fan responsible for generating and supplying air flow and a diffusion component responsible for diffusing the air flow. The fan can rotate at a certain frequency and speed to generate a certain amount of air flow and send the air flow out from the air outlet. The air flow sent by the fan is a high-speed and concentrated air flow. The fan can be an independent air supply device or a module provided in the air supply device. The air supply device can be an air conditioning device (or an air conditioning unit), such as an assembled air conditioning unit (AHU). The assembled air conditioning unit refers to an air conditioning device that extracts indoor air to control the outlet air temperature and air volume and maintain the indoor temperature. When the air supply device is installed on a side wall of the room, wall air supply can be achieved. Wall air supply refers to the air flow being discharged from a side wall of the room to form a room-level air flow circulation in the horizontal direction, and the side of the air outlet can also be called a wind wall.

[0079] The related art of this application points out that the air supply system currently used in the data center is to reduce the speed and pressure of the high-speed and concentrated forward airflow of the air conditioning unit through a perforated plate with a small through-hole rate. It is found through use that the current air supply system has a low through-hole rate (20%-30%) and a large wind resistance of the orifice plate, which causes the air supply volume of the air conditioning unit to be seriously attenuated, so that the remote cabinet cannot dissipate heat well due to insufficient air supply volume, and the local hot spot problem of the remote cabinet is obvious. In extreme cases, the remote cabinet is caused to be high in temperature. In order to achieve the purpose of dissipating heat for the remote cabinet, it is necessary to increase the operating frequency and speed of the fan to meet the set supply and return air temperature difference and supply air volume, thereby preventing the generation of local hot spots, but this greatly increases the overall energy consumption of the air supply system.

[0080] Based on this, the present application proposes a structural conception of an air supply system: the air supply system includes a fan and a first diffusion component, the first diffusion component is fixedly spaced from the air outlet of the fan, and by arranging the first diffusion component on one side of the air outlet of the fan, the air supply airflow sent out by the fan can be diffused in the air supply path to form a first diffused airflow, and the speed of the air supply airflow sent out by the fan can be reduced. The specific structure for achieving diffusion includes the following contents: the first diffusion component includes first blades arranged at intervals along a first direction (for example, a vertical direction), and the length direction of each first blade is parallel to a second direction (for example, a horizontal direction) intersecting the first direction, and each first blade includes two sides: a first air inlet side close to the fan and a first air outlet side away from the fan, and along the first direction, the distance between the first air inlet sides of two adjacent first blades is less than or equal to the distance between the first air outlet sides. In this way, the two adjacent first blades in the first diffusion component can form an opening parallel to the second direction based on the distance between the two side edges. When the supply air flow sent by the fan passes through the first diffusion component, the direction of the supply air flow can be changed through the formed opening, and the opening formed by each blade can make the supply air flow evenly diffused. The effective through-porosity of the opening is larger than that of the hole shape, and the resistance loss of the supply air flow when passing through the first diffusion component can also be smaller, thereby effectively reducing wind resistance and ensuring the supply air volume, with lower overall energy consumption and better uniform flow effect.

[0081] Based on the above description, the following will be combined with the accompanying drawings to introduce in detail an air supply system provided by an embodiment of the present application, a data center equipped with the air supply system, and an air supply method applied to the air supply system. The air supply system of the present application can be used in an indoor environment with a heat source or a concentrated heat source, such as in a data center. The following description will be given using a data center as an example.

[0082] See also Figure 1 The schematic diagram shows a scenario in which the air supply system 100 of the present application is applied to a data center.

[0083] The data center includes an air supply system 100 and a computer room 101, and at least one IT device (such as a server 1010) and / or a power supply device are arranged in the computer room 101. The at least one IT device and / or the power supply device will generate a lot of heat during operation. The air supply system 100 of the present application supplies air to the computer room 101 of the data center, thereby realizing the heat dissipation of the data center. In an embodiment of the present application, the data center can be a micromodule data center, a prefabricated data center, or a floor or room formed by a building for placing IT servers. Among them, based on the above-mentioned different forms of data centers, the air supply system 100 can be placed inside the computer room 101 of the data center, or outside the computer room 101, or partially inside the computer room 101 and partially outside the computer room 101. In some implementation scenarios, the concept of the data center includes a temperature control system and other supporting equipment in addition to IT equipment and power supply devices. Therefore, the air supply system 100 of the embodiment of the present application can also be regarded as part of the data center. The air supply system 100 of the present application includes a fan 10 and a first diffusion component 20, wherein the air outlet of the fan 10 can be connected to the interior of the machine room 101, so that the air supply airflow sent out by the fan 10 through the air outlet is diffused through the first diffusion component 20, and then flows into the machine room 101 after forming a first diffused airflow.

[0084] Please see Figure 2 In the schematic diagram of the vertical structure of the air supply system shown in the figure, the first diffusion component 20 and the air outlet of the fan 10 can be fixed at intervals. In some embodiments, a soft connection 120 can be provided between the first diffusion component 20 and the fan 10. The shape and size of the soft connection 120 are the same as the air outlet of the fan 10, which can play a shock-absorbing role. The first diffusion component 20 in the air supply system 100 of the present application includes a plurality of first blades 200, and the plurality of first blades 200 are arranged at intervals along the first direction 001, and the length direction of each first blade 200 is respectively parallel to the second direction 002, and the first direction 001 intersects with the second direction 002.

[0085] In some feasible embodiments, the spacing arrangement of the plurality of first blades 200 along the first direction 001 may be uniform spacing arrangement or non-uniform spacing arrangement. In the uniform spacing arrangement, when the first blades 200 are parallel, the spacing between the first blades 200 is equal. In the non-uniform spacing arrangement, when the first blades 200 are parallel, there are at least two first blades 200 with unequal spacing. In the illustrated embodiment, the first blades 200 in the first diffusion component 20 may be uniformly spaced.

[0086] In some embodiments, the first diffusion component 20 may be a guide air valve or a diffusion plate, and the plurality of first blades 200 included therein may be a louver (also referred to as an adjustable louver) with a blade inclination angle support adjustment or a guide plate with a fixed blade inclination angle, and the guide plate may be a plate with a curved surface, and the arc angle of the curved surface may be fixed. In the illustrated embodiment, the first direction 001 may be defined as a vertical direction (such as along the z-axis direction), the second direction 002 may be defined as a horizontal direction (such as along the x-axis direction), the intersection between the first direction 001 and the second direction 002 is a vertical intersection, that is, the intersection angle between the first direction 001 and the second direction 002 is 90 degrees, and the first blade 200 is an adjustable horizontal louver. In other embodiments, the horizontal direction may be defined as the first direction 001, and the vertical direction may be defined as the second direction 002, and the first blade 200 may be a longitudinal louver. In addition, the intersection angle between the first direction 001 and the second direction 002 may also be other angles, such as 45 degrees, 60 degrees, etc., and this application does not limit this.

[0087] Each first blade 200 includes a first air inlet side 2001 close to the fan 10 and a first air outlet side 2002 away from the fan. Each first blade 200 may be strip-shaped, and the first air inlet side 2001 and the first air outlet side 2002 may be parallel to the second direction 002, respectively. The length direction of the first blade 200 refers to the direction where the length of the first blade 200 is located, for example, it may be the direction where the first air inlet side 2001 is located or the direction where the first air outlet side 2002 is located. For any two adjacent first blades 200 in the first diffusion component 20, along the first direction 001, the first air inlet side 2001 of any two first blades 200 are adjacent and have a certain distance, and the first air outlet side 2002 of any two first blades 200 are adjacent and have a certain distance. Moreover, along the first direction, the distance between the first air inlet side 2001 of any two adjacent first blades 200 is less than or equal to the distance between the first air outlet side 2002. In this way, an opening along the second direction 002 can be formed between two adjacent first blades 200 in the first diffusion component 20 to diffuse the supply air flow delivered by the fan. Based on the adjacent openings, the supply air flow is diffused in a fan shape after passing through the first diffusion component 20, and then the parallel high-speed supply air flow delivered by the fan is converted into a low-speed first diffusion air flow.

[0088] Based on the distance between the first air inlet side 2001 and the first air outlet side 2002 of two adjacent first blades 200, the distance between the first air inlet side 2001 of any two adjacent first blades 200 in the first diffusion component 20 and the distance between the first air outlet side 2002 have a distance difference, and the distance difference can be 0 or greater than 0. When the distance difference is 0, it means that the distance between the first air inlet side 2001 of the two adjacent first blades 200 is equal to the distance between the first air outlet side 2002, and the two adjacent first blades 200 are parallel to each other. When the distance difference is not 0, it means that the distance between the first air inlet side 2001 of any two adjacent first blades 200 is smaller than the distance between the first air outlet side 2002, and an opening is formed between the two adjacent first blades 200 on the air outlet side of the first diffusion component 20. There is a distance difference corresponding to any two adjacent first blades 200. In some embodiments, the distance difference is in an increasing relationship in the first direction 001. For example, the first direction 001 is a vertical direction. In the vertical upward direction, the distance difference can gradually increase, so that the opening formed by the two adjacent first blades 200 in the first diffusion component 20 will gradually increase, and each first blade 200 gradually tilts upward. In other embodiments, in the direction extending from the center position of the first diffusion component 20 to both sides along the first direction 001, the distance difference between the two adjacent first blades 200 is in an increasing relationship. Specifically, the direction extending from the center position to both sides includes two opposite directions along the first direction 001. Schematically, the first direction 001 is a vertical direction, and the direction extending from the center position to both sides includes a vertical upward direction and a vertical downward direction. The distance difference between the two adjacent first blades 200 is in an increasing relationship in the vertical upward direction and also in an increasing relationship in the vertical downward direction. Furthermore, in the direction extending from the center position of the first diffusion component 20 to both sides along the first direction 001, the distance difference between two adjacent first blades 200 can also be in a symmetrical relationship, that is, on the basis of the increasing relationship, the increasing change of the distance difference in the direction extending from the center position to one side is equivalent to the increasing change of the distance difference in the direction extending from the center position to the other side. Through the symmetrical increase, the outlet of the first supply air flow formed after diffusion by the first diffusion component 20 can be more uniform in the first direction.

[0089] Each of the first blades 200 in the first diffusion component 20 has its own blade inclination angle α, which refers to the angle between the plane where the length direction of the first blade 200 is located and the plane where the second direction 002 is located. The angle may be a right angle, an obtuse angle (i.e., an angle greater than 90°) or an acute angle (i.e., an angle less than 90°). The plane where the length direction of the first blade 200 is located may include a first air inlet side edge 2001 and a first air outlet side edge 2002. In some feasible embodiments, the plane where the second direction 002 is located intersects with the plane where the first direction 001 is located. If the first direction 001 and the second direction 002 are perpendicular to each other, then the plane where the second direction 002 is located is also perpendicular to the plane where the first direction 001 is located. Assuming that the first diffusion component 20 is a diffusion plate, then the surface parallel to the diffusion plate includes the plane where the first direction 001 is located, such as Figure 2 A schematic diagram of the structure of the first diffusion component included in the embodiment shown. Based on the blade inclination angle α of each first blade 200, in some embodiments, the blade inclination angles α of two adjacent first blades 200 are in an increasing relationship in the first direction 001. Schematically, the first direction 001 is a vertical direction, and the blade inclination angle α can be in an increasing relationship from bottom to top along the vertical direction. It can be understood that although the blade inclination angle α is in an increasing relationship, the increasing change of the blade inclination angle α can be uniform or non-uniform. For example, the blade inclination angles α of several adjacent first blades 200 are 15°, 20°, 30° and 35° respectively. It can be seen that the change of the blade inclination angles of adjacent first blades 200 in the first direction can be non-uniform. In other embodiments, in the direction extending from the center position of the first diffusion component 20 to both sides along the first direction 001, the blade inclination angles of two adjacent first blades 200 in the first diffusion component 20 are in an increasing relationship. Schematically, the first direction 001 is a vertical direction, and the directions extending from the center position to both sides along the first direction 001 include vertical upward and vertical downward directions. The blade inclination angle α of the first blade 200 at the center position of the first diffusion component 20 can be 90°, that is, the first blade 200 is perpendicular to the plane where the first direction is located, and relative to the first blade 200 at the center position, the blade inclination angle α of the first blade 200 extending to both sides gradually increases.

[0090] In one embodiment, the blade inclination angle α of any first blade 200 supports adjustment; by adjusting the blade inclination angle α of each first blade 200, the direction and / or speed of the first diffusion airflow can be changed. In a feasible embodiment, each first blade 200 can be configured with an independent angle adjuster, which can be installed on the side of the first diffusion component 20, and the adjustment of the blade inclination angle α of the first blade 200 can be controlled by the angle adjuster, and after the blade inclination angle α of the first blade 200 is adjusted, the blade inclination angle α of the first blade 200 is locked by the angle adjuster. In another feasible embodiment, each first blade 200 can also be configured with an independent anemometer, and the wind speed flowing through the first blade 200 can be detected by the anemometer, and then the blade inclination angle α of the first blade 200 is adjusted based on the wind speed and the first wind speed threshold, so that the wind speed of the first diffusion airflow can reach the threshold, the air volume can meet the requirements, and the air outlet is uniform. In another feasible embodiment, the blade inclination angle α of each first blade 200 also supports manual adjustment, and the user can adjust the blade inclination angle α of the first blade 200 according to the required wind direction and wind speed. It can be understood that the larger the blade inclination angle α of the first blade 200, the larger the blocking area of ​​the first blade to the supply air flow, so that the wind speed of the first diffused airflow is smaller, that is, the smaller the wind speed of the supply air section, the blade inclination angle α of the first blade 200 can change the originally parallel direction of the supply air flow, and the formed first diffused airflow has a corner relative to the supply air flow in the first direction, and the airflow direction diffuses along the first direction.

[0091] In one embodiment, the air supply system 100 further includes a second diffusion component 30, and the structural design of the second diffusion component 30 is similar to that of the first diffusion component 20. Figure 3 The vertical structural diagram of the air supply system shown in the figure comprises a second diffusion component 30 including a plurality of second blades 300 , wherein the plurality of second blades 300 are arranged at intervals along a second direction 002 , and the length direction of each second blade 300 is respectively parallel to the first direction 001 .

[0092] In some feasible embodiments, the multiple second blades 300 may be arranged at uniform intervals or non-uniform intervals along the first direction 001, and the second diffusion component 30 may be a guide air valve or a diffusion plate. The multiple second blades 300 included therein may be louvers (also referred to as adjustable louvers) with adjustable blade inclination angles or guide plates with fixed blade inclination angles, and the guide plate may be a plate with a curved surface, and the arc angle of the curved surface may be fixed. In the illustrated embodiment, the second blades 300 are adjustable louvers, and the intersection between the first direction 001 and the second direction 002 is a vertical intersection. If the first direction 001 is defined as a vertical direction and the second direction 002 is defined as a horizontal direction, the second blades 300 may be longitudinal louvers.

[0093] Each second blade 300 includes a second air inlet side edge 3001 close to the fan 10 and a second air outlet side edge 3002 away from the fan. Each second blade 300 may be strip-shaped, and the second air inlet side edge 3001 and the second air outlet side edge 3002 may be parallel to the first direction 001, respectively. The length direction of the second blade 300 refers to the direction where the length of the second blade 300 is located, for example, it may be the direction where the second air inlet side edge 3001 is located or the direction where the second air outlet side edge 3002 is located. For any two adjacent second blades 300 in the second diffusion component 30, along the first direction 001, the second air inlet side edges 3001 of any two second blades 300 are adjacent and have a certain distance, and the second air outlet side edges 3002 of any two second blades 300 are adjacent and have a certain distance. Moreover, along the second direction, the distance between the second air inlet side edges 3001 of any two adjacent second blades 300 is less than or equal to the distance between the second air outlet side edges 3002. In this way, an opening along the second direction 002 can be formed between two adjacent second blades 300 in the second diffusion component 30 to diffuse the passing supply air flow, and based on the adjacent openings, the supply air flow can be diffused in a fan shape after passing through the second diffusion component 30, thereby converting the first diffusion airflow into a second diffusion airflow with lower wind speed, wider coverage and more uniform air output.

[0094] Based on the distance between the second air inlet sides 3001 and the second air outlet sides 3002 of two adjacent second blades 300, the distance between the second air inlet sides 3001 and the distance between the second air outlet sides 3002 of any two adjacent second blades 300 in the second diffusion component 30 has a distance difference, and the distance difference can be 0 or greater than 0. When the distance difference is 0, it means that the distance between the second air inlet sides 3001 of any two adjacent second blades 300 is equal to the distance between the second air outlet sides 3002, and the two adjacent second blades 300 are parallel to each other. When the distance difference is not 0, it means that the distance between the second air inlet sides 3001 of any two adjacent second blades 300 is smaller than the distance between the second air outlet sides 3002, and the two adjacent second blades 300 form an opening on the air outlet side of the second diffusion component 30. There is a distance difference corresponding to any two adjacent second blades 300. In some embodiments, the distance difference is in an increasing relationship in the second direction 002. For example, the second direction 002 is a horizontal direction, and the distance difference from left to right in the horizontal direction can gradually increase, so the openings of the two adjacent second blades 300 in the second diffusion component 30 will gradually increase, and each second blade 300 gradually tilts to the right. In other embodiments, in the direction extending from the center position of the second diffusion component 30 to both sides along the second direction 002, the distance difference between the two adjacent second blades 300 is in an increasing relationship. Specifically, the direction extending from the center position to both sides includes two opposite directions along the second direction 002. Schematically, the second direction 002 is a horizontal direction, and the direction extending from the center position to both sides includes a horizontal left direction and a horizontal right direction. The distance difference between the two adjacent second blades 300 is in an increasing relationship in the horizontal right direction and in the vertical left direction. Furthermore, in the direction extending from the center position of the second diffusion component 30 to both sides along the second direction 002, the distance difference between two adjacent second blades 300 can also be in a symmetrical relationship, that is, on the basis of the increasing relationship, the increasing change of the distance difference in the direction extending from the center position to one side is equivalent to the increasing change of the distance difference in the direction extending from the center position to the other side. Through the symmetrical increase, the outlet of the second supply air flow formed after diffusion by the second diffusion component 30 can be more uniform in the second direction.

[0095] Each second blade 300 in the second diffusion component 30 has its own blade inclination angle β, which refers to the angle between the plane where the length direction of the second blade 300 is located and the plane where the first direction 001 is located. The plane where the length direction of the second blade 300 is located may include the second wind inlet side edge 3001 and the second wind outlet side edge 3002. In some feasible embodiments, the plane where the second direction 002 is located intersects with the plane where the second direction 002 is located. If the second direction 002 is perpendicular to the second direction 002, then the plane where the second direction 002 is located is also perpendicular to the plane where the second direction 002 is located. If the second diffusion component is a second diffusion plate, the plane parallel to the second diffusion plate may include the plane where the first direction 001 is located. Based on the blade inclination angle β of each second blade 300, in some embodiments, the blade inclination angles β of two adjacent second blades 300 are in an increasing relationship in the second direction 002. Schematically, the second direction 002 is a horizontal direction, and the blade inclination angle β can be in an increasing relationship from left to right along the horizontal direction. It is understandable that, although the blade inclination angle β is in an increasing relationship, the increasing change of the blade inclination angle β may be uniform or non-uniform, for example, the blade inclination angles β of several adjacent second blades 300 are 15°, 30°, 30° and 35° respectively, and the change of the blade inclination angles β of adjacent second blades 300 in the second direction may be non-uniform, and the second blades 300 are gradually tilted horizontally to the right relative to the plane where the first direction is located. In other embodiments, in the direction extending from the center position of the second diffusion component 30 to both sides along the second direction 002, the blade inclination angles β of two adjacent second blades 300 in the second diffusion component 30 are in an increasing relationship. Schematically, the second direction 002 is a horizontal direction, and the directions extending from the center position to both sides along the second direction 002 include horizontal left and horizontal right directions. The blade inclination angle β of the second blade 300 at the center position of the second diffusion component 30 can be 90°, that is, the second blade 300 is perpendicular to the plane where the first direction is located, or the blade inclination angle β of the second blade 300 at the center position can be taken as 1 / 2 of the blade inclination angle β of the second blade 300 on both sides, and relative to the second blade 300 at the center position, the blade inclination angle β of the second blade 300 extending to both sides gradually increases.

[0096] In one embodiment, the blade inclination angle β of any second blade 300 supports adjustment; by adjusting the blade inclination angle β of each second blade 300, the direction and / or speed of the second diffused airflow can be changed. In a feasible embodiment, each second blade 300 is configured with an independent angle adjuster, which can be installed on the side of the first diffuser. The adjustment of the blade inclination angle of the second blade 300 can be controlled by the angle adjuster, and after the blade inclination angle β of the second blade 300 is adjusted, the blade inclination angle β of the second blade 300 can be locked by the angle adjuster. In another feasible embodiment, each second blade 300 can also be configured with an independent anemometer, which can detect the wind speed flowing through the second blade 300, and then adjust the blade inclination angle β of the second blade 300 based on the wind speed and the second wind speed threshold, so that the wind speed of the second diffused airflow can reach the threshold, the air volume can meet the requirements, and the air outlet is more uniform. In another feasible embodiment, the blade inclination angle β of each second blade 300 also supports manual adjustment, and the user can adjust the blade inclination angle β of the second blade 300 according to the required wind direction and wind speed. It can be understood that the larger the blade inclination angle β of the second blade 300, the larger the blocking area of ​​the second blade to the air supply airflow, so that the wind speed of the second diffused airflow is smaller, that is, the smaller the wind speed of the air supply cross section, the blade inclination angle β of the second blade 300 can change the airflow direction of the first air supply airflow in the second direction 002, and the formed second diffused airflow has a corner relative to the air supply airflow in the second direction, and the airflow direction diffuses along the second direction 002. In addition, whether it is the first blade 200 or the second blade 300, the respective blade inclination angles can be fine-tuned during the operation of the air supply system, thereby achieving the effect of uniform air supply.

[0097] The second diffusion component 30 is arranged at intervals with the first diffusion component 20, and the second diffusion component 30 can be arranged at intervals on the air outlet side of the first diffusion component 20, so that the first diffusion airflow sent by the first diffusion component 20 is diffused by the second diffusion component 30 to form a second diffusion airflow. Based on the above structural introduction of the second diffusion component 30, the air supply coverage of the second diffusion airflow in the first direction 001 is greater than the air supply coverage of the first diffusion airflow in the first direction 001, and the air supply coverage of the second diffusion airflow in the first direction 001 and the second direction 002 are both greater than the air supply coverage of the air supply airflow sent by the fan 10. It has been verified by experiments that the effective through-hole rate of the diffusion component included in the air supply system 100 of the present application can be greater than 80%, and the larger through-hole rate can make the resistance loss of the airflow passing through the diffusion component smaller, thereby reducing the wind resistance and ensuring the air volume sent. In this way, in the entire air supply system 100, based on the combination of the first diffusion component 20 and the second diffusion component 30, the air supply airflow sent by the fan 10 can be diffused in different directions. Specifically, the air supply airflow passes through the first diffusion component 20 and the second diffusion component 30 in sequence, and diffuses in the first direction 001 and the second direction 002 respectively, so that the diffusion shapes of the second diffused airflow finally formed in the first direction 001 and the second direction 002 are both fan-shaped, and the fan-shaped shapes in the two directions are combined to form a spherical diffused airflow, such as Figure 4 The diffusion diagram of the air supply airflow is shown. The air supply airflow is realized from high to low speed, concentrated to dispersed. Based on the advantages of fan-shaped diffusion, such as large through-hole rate, small corner, low wind resistance, small energy loss, and high uniformity, the total energy consumption of the air supply system can be reduced, and the air supply airflow can be evenly diffused in a short distance.

[0098] See also Figure 5The schematic diagram of the vertical structure of the air supply system 100 shown in FIG. A first air supply duct 40 may be arranged between the first diffusion component 20 and the second diffusion component 30 included in the air supply system 100, and the first air supply duct 40 is responsible for guiding the flow. The first diffusion airflow sent by the first diffusion component 20 is guided by the first air supply duct 40 and then transferred to the second diffusion component 30. The first air supply duct 40 is a three-dimensional structure with two ends open, one of which is an air inlet end 401 and the other is an air outlet end 402. The projections of the air inlet end 401 and the air outlet end 402 in the direction parallel to the flow guidance may have the same shape, for example, the projection of the first air supply duct 40 in the flow guidance direction includes two parallel rectangular openings of equal length and unequal width, the smaller opening is the air inlet end, and the larger opening is the air outlet end. The air inlet end 401 of the first air supply duct 40 is arranged on the air outlet side of the first diffusion component 20, and the air outlet end 402 of the first air supply duct 40 is arranged on the air inlet side of the second diffusion component 30. The outlet side of the first diffusion component 20 refers to the side where the outlet side of each first blade 200 in the first diffusion component 20 is located, and the first diffusion component 20 also has an inlet side, and the inlet side of the first diffusion component 20 refers to the side where the inlet side of each first blade 200 in the first diffusion component 20 is located. The second diffusion component 30 also has a similar outlet side and inlet side, that is, the inlet side of the second diffusion component 30 refers to the side where the inlet side of each second blade 300 in the second diffusion component 30 is located, and the outlet side of the second diffusion component 30 refers to the side where the outlet side of each second blade 300 in the second diffusion component 30 is located. Based on the positional relationship between the above-mentioned first air supply duct 40 and the two diffusion components, the first diffusion airflow delivered by the first diffusion component 20 flows into the first air supply duct 40 from the air inlet end 401 of the first air supply duct 40, and then is guided to the second diffusion component 30 through the air outlet end 402 of the first air supply duct 40. Then, the second diffusion component 30 can diffuse the guided first diffusion airflow to form a second diffusion airflow, which is delivered from the air outlet side of the second diffusion component 30.

[0099] In some embodiments, the cross-sectional area of ​​the first air supply duct 40 at the air inlet end 401 is greater than or equal to the cross-sectional area of ​​the air outlet side of the first diffusion component 20, and the cross-sectional area of ​​the air inlet side of the second diffusion component 30 is greater than or equal to the cross-sectional area of ​​the first air supply duct 40 at the air outlet end. Based on the positional relationship between the first air supply duct 40 and the first diffusion component 20, the airflow direction of the first diffused airflow delivered by the first diffusion component 20 can be restricted within the space of the first air supply duct 40. By setting the cross-sectional area relationship, when the cross-sectional area of ​​the first air supply duct 40 at the air inlet end 401 is larger than the cross-sectional area of ​​the air outlet side of the first diffusion component 20, a larger space can be provided to guide the first diffused airflow. The first diffusion component 20 can make the air supply airflow delivered by the fan 10 fill the first air supply duct 40 as much as possible after diffusion, thereby making full use of the space of the first air supply duct 40 to guide more air supply air. When the cross-sectional area of ​​the first air supply duct 40 at the air inlet end 401 is equal to the cross-sectional area of ​​the air outlet side of the first diffusion component 20, the diffusion direction of the first diffused airflow can also be made to fit the air supply duct as much as possible to achieve better air supply.

[0100] In some embodiments, on the basis that the air supply system 100 includes the first diffusion component 20 and the second diffusion component 30, or on the basis that the air supply system 100 includes the first diffusion component 20, the second diffusion component 30 and the first air supply duct 40, the air supply system 100 further includes a second air supply duct 50. Similar to the first air supply duct, the second air supply duct 50 is a three-dimensional structure with two ends open, one of which is an air inlet end and the other is an air outlet end. The positional relationship between the second air supply duct and the diffusion component is as follows: the air inlet end of the second air supply duct 50 is arranged on the air outlet side of the second diffusion component 30, so that the second diffusion airflow sent by the second diffusion component 30 flows from the air inlet end of the second air supply duct 50 into the second air supply duct 50, and then flows out through the air outlet end of the second air supply duct 50.

[0101] See also Figure 6The schematic diagram of the planar structure of the air supply system 100 of the present application is shown. The air supply system 100 includes a first diffusion component 20, a second diffusion component 30, a first air supply duct 40 and a second air supply duct 50. In some embodiments, the first air supply duct 40 may be arranged between the first diffusion component 20 and the second diffusion component 30, the air inlet end 401 of the first air supply duct 40 is arranged at the air outlet side of the first diffusion component 20, the air outlet end of the first air supply duct 40 is arranged at the air inlet side of the second diffusion component 30, and the air inlet end 501 of the second air supply duct 50 is arranged at the air outlet side of the second diffusion component 30. The connection of each component is as follows: the air outlet of the fan 10 is connected to the first diffusion component 20 through a soft connection, the first diffusion component 20 is connected to the first air supply duct 40, the first air supply duct 40 is connected to the second diffusion component 30, and the second diffusion component 30 is connected to the second air supply duct 50. In this way, the air supply airflow sent by the fan 10 first passes through the first diffusion component 20 for diffusion, forming a first diffused airflow, and the first diffused airflow passes through the first air supply duct 40 to be guided to the air inlet side of the second diffuser component 30, and then diffuses through the second diffuser component 30, and then the second diffused airflow is sent out from the air outlet side of the second diffuser component 30. The cross-sectional shape of the first diffuser component 20 at the air inlet side and the cross-sectional shape of the first air supply duct 40 at the air inlet end in the air supply system 100 can be combined with the shape of the air outlet of the fan 10, for example, the shape is the same as the air outlet of the fan 10 but the area is relatively larger. By using the combination of two air supply ducts and two diffusers, uniform diffusion of the air supply airflow can be achieved without the aid of a static pressure box, eliminating the design of a static pressure box and saving the space occupied by the static pressure box.

[0102] The three-dimensional structure of the first air supply duct 40 is a first three-dimensional structure, and the three-dimensional structure of the second air supply duct 50 is a second three-dimensional structure. The first three-dimensional structure and the second three-dimensional structure may be the same or different. The first three-dimensional structure includes: one of a step, a rectangular parallelepiped and a cube; the second three-dimensional structure includes: one of a step, a rectangular parallelepiped and a cube. Exemplarily, the three-dimensional structure of the first air supply duct 40 is a step, and the first air supply duct 40 may also be called a step duct, such as Figure 6 In the schematic diagram of the plane structure of the air supply system shown in FIG. 1 , the projection of the first air supply duct 40 in the plane view is rectangular, the left and right sides of the first air supply duct are parallel to each other, and the first air supply duct 40 is as shown in FIG. Figure 3 The projection in the elevation structure diagram is a trapezoid, and the two sides of the trapezoid are the upper and lower sides of the first air supply duct. The three-dimensional structure of the second air supply duct 50 is a cuboid, which can also be called a straight tube, and the projection of the second air supply duct 50 is a rectangle. For another example, the first air supply duct 40 and the second air supply duct 50 are both straight tubes, and the shape of the three-dimensional structure on each projection surface is a rectangle. Figure 6The three-dimensional structures of each air supply duct shown are all stepped structures, but it can be understood that the stepped structure of the air supply duct in the present application is only an example. In actual applications, the appearance structure of each air supply duct can be designed according to needs, for example, it can also be designed as a rectangular structure, a cube structure, etc., and the present application is not limited to this.

[0103] In some embodiments, when the three-dimensional structure of the first air supply duct 40 is a step structure, the first air supply duct 40 has at least one side wall 403 with an inclination angle relative to the plane where the second direction 002 is located. The inclination angle of the side wall 403 of the first air supply duct 40 makes the first air supply duct 40 expand at the air outlet end 402 relative to the air inlet end 401 of the first air supply duct 40, as described above. Figure 5 As shown. For example, the second direction 002 is a horizontal direction, such as the direction in which the air inlet end 401 of the first air supply duct 40 extends to the air outlet end 402 (or referred to as the diversion direction). The first air supply duct 40 includes four sides, namely, upper and lower sides and left and right sides. The plane where the second direction 002 is located is parallel to the lower side of the first air supply duct 40. There is an inclination angle between the upper side of the first air supply duct and the plane where the second direction 002 is located, that is, the upper side is a side wall 403 with an inclination angle, and the upper and lower sides form a flaring angle. The inclination angle of the side wall 403 of the first air supply duct 40 is less than the first preset angle threshold, and the first preset angle threshold is, for example, 45°, 60°, etc. The corner of the airflow guided in the first air supply duct 40 in the first direction can be limited to the first preset angle threshold. The smaller the inclination angle of the side wall 403 of the first air supply duct 40, the smaller the change in the airflow direction, and the smaller the dynamic pressure loss, so that the amount of airflow that can be transmitted is larger, and the speed and air volume of the airflow are attenuated less. The first blade 200 in the first diffusion component 20, whose distance from the side wall of the first air supply duct in the first direction 001 is less than the first preset distance threshold, has an angle difference between the corresponding blade inclination angle and the inclination angle of the side wall of the first air supply duct that is less than the angle difference threshold. The blade inclination angle of the first blade 200 and the inclination angle of the side wall of the first air supply duct are relative to the same plane. The closer the first blade 200 in the first diffusion component 20 is to the side wall of the first air supply duct, the closer its blade inclination angle α is to the inclination angle of the side wall, thereby forming a continuation in the airflow direction, and making the airflow at the edge transmitted in the first air supply duct 40 flow as close to the side wall of the first air supply duct as possible, thereby making full use of the three-dimensional space of the first air supply duct and effectively increasing the transmitted air volume.

[0104] In the case where the three-dimensional structure of the second air supply duct 50 is a step structure, the second air supply duct 50 may have similar structural features to the first air supply duct, and the second air supply duct 50 has at least one side wall 503 with an inclination angle relative to the plane where the first direction 001 is located, and the inclination angle of the side wall 503 of the second air supply duct 50 makes the second air supply duct 50 expand at the air outlet end 502 of the second air supply duct 50 relative to the air inlet end 501, as described above. Figure 6 As shown. The inclination angle of the side wall 503 of the second air supply duct 50 is less than the second preset angle threshold; the second preset angle threshold here can be the same as or different from the first preset angle threshold mentioned above, for example, the first preset angle threshold is 45°, and the second preset angle threshold is 60°. The second blade 300 in the second diffusion component 30, whose distance from the side wall 503 of the second air supply duct 50 in the second direction 002 is less than the second preset distance threshold, the angle difference between the corresponding blade inclination angle and the inclination angle of the side wall of the second air supply duct 50 is less than the angle difference threshold. The corner of the airflow guided in the first air supply duct 40 in the second direction is limited to the first preset angle threshold. The smaller the inclination angle of the side wall 403 of the first air supply duct 40, the smaller the change in the direction of the airflow, and the smaller its dynamic pressure loss, so that the amount of airflow that can be transmitted is larger and the speed attenuation of the airflow is smaller.

[0105] In other embodiments, when the three-dimensional structure of the first air supply duct is a rectangular parallelepiped structure or a cube structure, the positional relationship of the various components in the air supply system 100 may also include the following types ①-③:

[0106] ① The first air supply duct 40 and the second air supply duct 50 are both arranged between the first diffusion component 20 and the second diffusion component 30, the air inlet end of the first air supply duct 40 is arranged on the air outlet side of the first diffusion component 20, the air outlet end of the first air supply duct 40 is connected to the air inlet end of the second air supply duct 50, and the air outlet end of the second air supply duct 50 is arranged on the air inlet side of the second diffusion component 30. Figure 7a The simplified schematic diagram of the elevation structure of the air supply system 100 is shown. Under this configuration, the air supply airflow delivered by the fan 10 can first pass through the first diffusion component 20 to diffuse to form a first diffused airflow, the first diffused airflow first passes through the first air supply duct 40 to be directed to the second air supply duct 50, and then is directed by the second air supply duct 50 to the second diffuser component 30, the second diffuser component 30 diffuses the first diffused airflow to form a second diffused airflow and delivers it.

[0107] ② The first air supply duct 40 is arranged between the fan 10 and the first diffusion component 20, and the second air supply duct 50 is arranged between the first diffusion component 20 and the second diffusion component 30; the air outlet end 402 of the first air supply duct 40 is arranged on the air inlet side of the first diffusion component 20, the air inlet end 401 of the first air supply duct 40 is arranged at the air outlet of the fan 10, the air inlet end 501 of the second air supply duct 50 is arranged on the air outlet side of the first diffusion component 20, and the air outlet end 502 of the second air supply duct 50 is arranged on the air inlet side of the second diffusion component 30. Figure 7b The simplified schematic diagram of the elevation structure of the air supply system 100 is shown. Under this setting, the air supply airflow delivered by the fan 10 can first pass through the first air supply duct 40 to be guided to the air inlet side of the first diffusion component 20, and the air supply airflow delivered by the first air supply duct 40 is diffused by the first diffusion component 20 to form a first diffused airflow, and the first diffused airflow is guided to the air inlet side of the second diffusion component 30 through the second air supply duct 50, and then the second diffusion component 30 diffuses the first diffused airflow to form a second diffused airflow and deliver it.

[0108] ③ The first air supply duct 40 and the second air supply duct 50 are both arranged between the fan 10 and the first diffusion component 20, the air inlet end 401 of the first air supply duct 40 is arranged at the air outlet of the fan, the air outlet end 402 of the first air supply duct 40 is connected to the air inlet end 501 of the second air supply duct 50, and the air outlet end 502 of the second air supply duct 50 is arranged on the air inlet side of the first diffusion component 20. Figure 7c The simplified schematic diagram of the elevation structure of the air supply system 100 is shown. Under this setting, the air supply airflow sent out from the air outlet of the fan 10 can directly flow into the first air supply duct 40, and is guided by the first air supply duct 40 and the second air supply duct 50 in turn, and sent to the air inlet side of the first diffusion component 20, and then the first diffusion component 20 diffuses the air supply airflow in the first direction 001, and the second diffusion component 30 diffuses the first diffusion airflow sent out by the first diffusion component 20 in the second direction 002, and finally forms a second diffusion airflow.

[0109] It is understandable that when the three-dimensional structure of the first air supply duct is a rectangular structure or a cube structure, the three-dimensional structure of the second air supply duct may be a step structure, a rectangular structure or a cube structure. When the three-dimensional structure of the first air supply duct is the same, the volumes of the two may be the same or different.

[0110] In one embodiment, an air supply plate 60 may be further provided on one side of the fan 10 that delivers the supply air flow, so that the supply air flow delivered by the fan 10 flows into the machine room 101 through the air supply plate 60 after diffusion. In some implementations, if the air supply system 100 includes the fan 10 and the first diffusion component 20, the air supply plate 60 may be provided on the air outlet side of the first diffusion component 20 to deliver the first diffused air flow to the machine room 101. If the air supply system includes the fan 10, the first diffusion component 20, the second diffusion component 30, the first air supply duct 40 and the second air supply duct 50, and the final second diffused air flow is delivered by the second air supply duct 50, the air supply plate 60 may be provided at a preset distance from the air outlet end 502 of the second air supply duct 50, such as Figure 8a The vertical structural diagram of the air supply system is shown in FIG. The air supply plate 60 is spaced a certain distance from the second air supply duct 50 , and the air supply plate 60 is perpendicular to the ground 1011 and the ceiling 1012 of the machine room 101 , the second diffusion component 30 is in the same plane as the outer wall 004 , the second air supply duct 50 is between the outer wall 004 and the inner wall 005 , and the air outlet end 501 of the second air supply duct 50 is arranged on the right side of the inner wall 005 .

[0111] In some feasible embodiments, the air supply plate 60 can correct the direction of the airflow and improve the appearance of the air. The air supply plate 60 includes a plurality of air supply blades 600. In one implementation, the plurality of air supply blades 600 are arranged at intervals along the second direction 002, and the length direction of each air supply blade 600 is respectively parallel to the first direction 001, that is, the air supply plate 60 is similar to the first diffusion component 20 in terms of structural setting. In another implementation, the plurality of air supply blades 600 can also be arranged at intervals along the first direction 001, and the length direction of each air supply blade 600 is respectively parallel to the second direction 002, that is, the air supply plate 60 is similar to the second diffusion component 30 in terms of structural setting. The air supply plate 60 can be configured as a movable air supply plate, such as a louver wall with rotatable air supply blades. The rotation of the air supply blades 600 in the air supply plate 60 can be controlled by a controller, so as to adjust the gap between the air outlet side and the air inlet side of the air supply plate, so that the diffused airflow can partially or completely enter the machine room, and further adjust the direction of the diffused airflow. For example, if Figure 8b The air supply plate 60 shown is a louver wall composed of a metal frame 601 and a plurality of longitudinal louvers (corresponding to the air supply blades 600) inside. The louver angle of the louver wall is kept at 90 degrees in an open state. Then, the diffused airflow can be adjusted to a parallel airflow after passing through the louver wall. Based on the existence of the diffused airflow in more directions, the parallel airflow has a wider coverage, more uniform airflow and lower wind speed than the parallel air supply airflow delivered by the fan 10. Figure 8cIn other embodiments, the air supply plate 60 may be a whole-surface air filter, which includes a plurality of mesh sheets and each mesh sheet has a fixed angle. The air filter sheet can correct the direction of the diffused airflow and further reduce the speed of the diffused airflow.

[0112] When a computer room 101 is equipped with multiple air supply systems 100, in order to supply air more efficiently, each air supply system 100 can share an air supply plate 60. The air supply plate 60 can be set perpendicular to the ground of the computer room 101, and the height of the air supply plate 60 can be equal to the height of the computer room 101, and the length of the air supply plate 60 can be equal to the length of the computer room 101. In this way, a relatively large area can be used to cope with the diffuse airflows delivered by multiple air supply systems, so that the air supply coverage is larger and more uniform.

[0113] In one embodiment, a fire damper 70 may be further provided on the side where the fan 10 delivers the supply airflow. In some implementations, if the air supply system 100 includes the fan 10 and the first diffusion component 20, the fire damper 70 may be provided between the first diffusion component 20 and the air supply plate 60, for example, the fire damper 70 is provided on the air outlet side of the first diffusion component. If the air supply system includes the fan 10, the first diffusion component 20, the second diffusion component 30, the first air supply duct 40 and the second air supply duct 50, and the second air supply duct 50 delivers the final second diffused airflow, the fire damper 70 may be provided between the air supply plate 60 and the second air supply duct 50, for example, it may be provided at the air outlet end 502 of the second air supply duct 50. When the fire damper 70 is opened, the supply airflow delivered by the fan 10 is allowed to flow into the machine room 101 after diffusion; when the fire damper 70 is closed, the supply airflow delivered by the fan 10 is blocked from flowing into the machine room 101 after diffusion. Based on this, the fire damper 70 can be linked with the start and stop of the fan and the fire protection system. When the fan 10 is started, the fire damper 70 can be opened so that the air supply airflow can flow smoothly into the interior of the machine room 101 after diffusion and the air supply direction can be adjusted again by the air supply plate 60. When the fan is turned off or the air supply system 100 receives an early warning signal from the fire protection system, the fire damper 70 can be closed to block the air supply airflow from flowing into the interior of the machine room 101 after diffusion. Figure 8a The vertical structure diagram of the air supply system shown in the figure can provide Figure 8d The cross-sectional structural diagram of the air supply system is shown. In the cross-sectional diagram, the fire damper 70, the first diffusion component 20 and the second diffusion component 30 are all projected into a rectangle.

[0114] In a feasible embodiment, if each air supply duct in the air supply system 100 does not adopt the design of a step duct, then the diffusion component can be installed at the outlet of the fire damper, for example, the first diffusion component is installed at the outlet of the fire damper, or the first diffusion component and the second diffusion component are installed. Assuming that the diffusion component is an adjustable louver damper, when two diffusion components are provided, the louver adjustment direction can be adjusted left and right and up and down, so that the diffused airflow formed by the final diffusion is fan-shaped in both directions, and a spherical diffused airflow is obtained.

[0115] The fire damper 70 and the air supply plate 60 are spaced at a fixed distance to form a transfer space 80. Specifically, the transfer space 80 is formed by spacing the fire damper 70 and the air supply plate 60 at a certain distance. On the one hand, the transfer space 80 can be used to balance the pressure of the diffused airflow sent out after diffusion. On the other hand, the diffused airflow formed by diffusion can be allowed to intersect within the transfer space 80 at a sufficient distance, so that when the machine room 101 is provided with multiple air supply systems 100, a wider space range can be covered. The multiple air supply systems 100 provided in the machine room 101 can be arranged horizontally at intervals, see Figure 9a The schematic diagram of the planar structure of multiple air supply systems 100 is shown, and each air supply system 100 is arranged in a horizontal interval, and the structural design of each air supply system 100 can be the same, such as using Figure 8a Air supply system shown.

[0116] In some embodiments, if two adjacent air supply systems 100 are each provided with an air supply duct, and there is an intersection between the side walls of the air supply ducts in the two adjacent air supply systems 100, then the intersection is located in the transfer space. In the case where two adjacent air supply systems 100 both include a first air supply duct 40, the side wall of the air supply duct in the two adjacent air supply systems 100 refers to the side wall of the first air supply duct 40 in the two adjacent air supply systems 100. The intersection between adjacent side walls refers to the direct intersection between adjacent side walls in one direction, or the intersection of the extension lines of the flared openings of the side walls. For example, in Figure 9a Based on the plane structure diagram of the air supply system shown in Figure 9bThe schematic diagram shows that there is an intersection between the side walls of adjacent air supply ducts, and two air supply systems 100 are arranged at intervals in the machine room 101. In the flow direction from the air inlet end to the air outlet end, the side wall of the first air supply duct 40 includes left and right side surfaces, and the right side surface of the first air supply duct 40 in the air supply system 100 on the left intersects with the extended line of the expanded opening of the left side surface of the first air supply duct 40 in the air supply system 100 on the right, and the intersection point 90 falls in the transfer space 80 formed by the air supply plate 60 and the fire damper 70 to ensure that the supply air flow can 100% cover the air supply plate 60 in the horizontal direction (or lateral direction). When two adjacent air supply systems 100 both include a first air supply duct 40 and a second air supply duct 50, the air supply duct in the two adjacent air supply systems 100 refers to the second air supply duct 50 in the two adjacent air supply systems 100, and when the side walls of the second air supply duct 50 intersect, the intersection point must also be located in the transfer space 80.

[0117] In other embodiments, if two adjacent air supply systems 100 are each provided with a diffusion component, the intersection of the extended lines of the blade inclination angles of adjacent blades in the diffusion components of the two adjacent air supply systems 100 is located in the transfer space 80. In the case where only the first diffusion component 20 is provided in two adjacent air supply systems 100, the adjacent blades in the diffusion components of the two adjacent air supply systems 100 may refer to the two first blades with the smallest distance in the first diffusion components 20 of the two adjacent air supply systems 100. In the case where both the first diffusion component 20 and the second diffusion component 30 are provided in two adjacent air supply systems 100, the adjacent blades in the diffusion components of the two adjacent air supply systems 100 may refer to the two second blades with the smallest distance in the second diffusion components 30 of the two adjacent air supply systems 100. Exemplarily, based on Figure 9a The plan view of the air supply system shown in the figure can provide Fig.9c Schematic diagram of the intersection of the extension lines of the blade inclination angles of adjacent blades shown in FIG. 1 , the second diffusion component is a guide air valve including longitudinal louvers, then the adjacent blades refer to the rightmost longitudinal louver in the left guide air valve and the leftmost longitudinal louver in the right guide air valve. Since the blades in the diffusion component have blade inclination angles, the extension lines of the blade inclination angles of adjacent blades need to intersect in the transfer space 80 (such as Fig.9c The intersection shown is located just on the air supply plate 60), so that the diffused airflow formed after the diffusion components in the two adjacent air supply systems 100 diffuse the passing airflow can intersect in the transfer space, and then cover the entire air supply plate 60, so that the airflow is evenly delivered and has a wider coverage range.

[0118] It is understandable that if two adjacent air supply systems 100 are each provided with an air supply duct, and there is no intersection between the side walls of the air supply ducts in the two adjacent air supply systems 100, then the adjacent blades in the diffusion components in the two adjacent air supply systems 100 must satisfy that the intersection of the extension lines of the corresponding blade inclination angles is located in the transfer space, so that the delivered diffuse airflow can cover the entire air supply plate 60 as much as possible, and deliver the diffuse airflow in a wider range through the air supply plate 60.

[0119] It can be seen that when the computer room is equipped with multiple air supply systems 100, when multiple air-conditioning equipment (wind cabinets) are spaced at a certain distance and supply air horizontally in parallel, the above design can make the air supply airflow of the air-conditioning equipment (AHU) evenly cover a wider range, and the coverage position includes the air outlet position of the air-conditioning unit, the area between the air supply outlets of two adjacent air-conditioning equipment, and the area between the air supply outlet of each air-conditioning equipment and the floor and ceiling of the computer room, ultimately achieving the effect of uniform air outlet on the entire wall.

[0120] In order to verify the effectiveness of the air supply system provided by the present application, the air supply system involving the porous plate solution and the air supply system of the present application (for example, involving the louver solution) are compared as follows from multiple aspects such as theoretical calculations and measured data, wherein the air supply system 100 includes the various components mentioned in the above embodiments. Specifically, the air supply system 100 may include a fan and an air flow diffusion device, and the air flow diffusion device may include a primary air flow diffusion device and a two-stage air flow diffusion device. Each stage of the air flow diffusion device includes three components. The primary air flow diffusion device includes a flexible connection, a guide air valve 1, and a ladder air duct 1. The secondary air flow diffusion device includes a guide air valve 2, a ladder air duct 2, and a fire damper. A louver wall is also installed at a certain interval between the fire dampers. By adding an air flow diffusion device and related components between the air supply outlet of the air conditioning unit and the IT room, the air flow can be gradually and evenly diffused during the air supply process to achieve the purpose of air flow balance and resistance reduction and energy saving. The present application can provide the performance test parameters and comparison conditions shown in Table 1 below:

[0121] Table 1

[0122]

[0123]

[0124]

[0125] For the design comparison between the perforated plate solution and the louver solution in actual implementation, please refer to Fig.10c As shown in the comparison design diagram. Fig.10c As shown in (1) in the porous plate scheme, the perforated plate is replaced by a longitudinal louver wall, and an electric fire damper is installed, forming a transfer space between the electric fire damper and the longitudinal louver wall. Fig.10cAs shown in (2), after the perforated plate is replaced by a longitudinal louver wall, the opening effect of the longitudinal louver wall is that the louvers are vertical so that the gap between adjacent louvers is maximized. Fig.10c As shown in (3), at the fan position, the fan outlet is equipped with independently adjustable transverse louvers and independently adjustable longitudinal louvers to allow the air flow delivered by the fan to be diffused in the transverse and longitudinal directions, as shown in FIG. Fig.10c As shown in (4), the straight pipe used to guide the air supply air flow is replaced by a step-stage air duct, and there are two transverse horn expansions and a longitudinal horn expansion, and independently adjustable longitudinal louvers are arranged at the air inlet end of the step-stage air duct, and the continuation of the air flow direction is formed through each transverse horn expansion.

[0126] The above-mentioned air supply system is a relatively safe and energy-saving air supply system that ensures uniformity of wind speed and air volume. The safety aspect is reflected in the following aspects: without adjusting the power of the fan in the existing air conditioner, the air supply volume of the air conditioner unit can be effectively increased by reducing the air circulation resistance of the air flow outside the unit, ensuring the air volume demand of the remote cabinet, meeting the cold channel of the cabinet (relative to the hot channel) in a slightly positive pressure state, and preventing the generation of local hot spots in the server due to insufficient remote air supply volume. The energy-saving aspect is reflected in the following aspects: under the same air volume, the fan operating frequency and speed of the air conditioner unit in the air supply system are lower, and the energy consumption is lower; thus, the PUE of the computer room (an indicator of the energy efficiency of the computer room, the closer its value is to 1, the lower the energy consumption) is effectively reduced. In terms of ensuring the uniformity of wind speed and air volume in each cold channel: since the overall air outlet speed of the wind wall is more uniform, the air volume and wind speed of each cold channel can be ensured to be as equal as possible, preventing local hot spots caused by uneven distribution of air volume in each cold channel; in addition, the measured standby scenario data shows that: in the event of an AHU failure / spare part, the wind speed at the end face of the cold channel cabinet corresponding to this shut down AHU remains within the normal air volume and wind speed range.

[0127] It should be noted that the above description is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the present application, such as reducing or adding structural parts, changing the shape of structural parts, etc., which should be included in the protection scope of the present application; in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

[0128] In one embodiment, the present application also provides an air supply method, which can be applied to the air supply system 100 shown in the above embodiment. The air supply method includes the following steps S11 to S13:

[0129] Step S11, the air supply airflow is sent out by the fan 10. The air supply airflow sent out by the fan 10 is a small channel high-speed parallel airflow. Since the air supply airflow has a high speed, it usually cannot be blown directly to the equipment in the machine room 101, and some baffles that can ventilate the air are required to slow down. In the embodiment of the present application, a diffusion component is arranged in the air supply path of the air supply airflow to reduce the wind speed of the air supply airflow and realize the diffusion of the air supply airflow.

[0130] Step S12: diffusing the supply air flow to form a diffused air flow.

[0131] Step S13, sending the diffused airflow into the machine room 101.

[0132] Based on different designs of the air supply system 100, there are two ways to diffuse the air supply airflow through the components in the air supply system 100: (1) and (2):

[0133] (1) The air supply system 100 includes only one diffusion component. For example, the air supply system 100 includes a first diffusion component 20, and the first diffusion component 20 is fixedly spaced from the air outlet of the fan 10. Under this structure, when diffusing the air supply flow, the air supply flow delivered by the fan 10 can be diffused by the first diffusion component 20. With reference to the structural design of the first diffusion component 20 described above, the air supply flow can be diffused in a first direction 001 (such as a vertical direction) to form a first diffused airflow. In some embodiments, based on the relationship between the blade inclination angles of each first blade 200 in the first diffusion component 20, the air supply airflow can be uniformly diffused into a fan-shaped first diffusion airflow in a single direction (e.g., longitudinally or transversely), so that the air supply coverage range of the first diffusion airflow in the first direction 001 is wider than the air supply coverage range of the air supply airflow delivered by the fan 10, while the air supply coverage range in the second direction 002 can remain unchanged; in addition, since the first diffusion component 20 can act as a baffle in the flow path of the air supply airflow, the high-speed air supply airflow delivered by the fan 10 can be reduced after diffusion, and the speed of the formed first diffusion airflow is lower than the speed of the air supply airflow delivered by the fan 10. Afterwards, the first diffusion airflow can be directly delivered to the machine room 101.

[0134] (2) The air supply system 100 includes two diffusion components, such as the air supply system 100 includes a first diffusion component 20 and a second diffusion component 30, and the first diffusion component 20 is fixedly spaced from the air outlet of the fan 10, and the second diffusion component 30 is spaced apart on the air outlet side of the first diffusion component 20. Under this structure, when the air supply airflow is diffused, it can first be diffused in a first direction by the first diffusion component 20 to form a first diffused airflow, and then the first diffused airflow is diffused in a second direction by the second diffusion component 30 to form a second diffused airflow. In this way, by diffusing the air supply airflow delivered by the fan 10 twice in different directions, bidirectional (for example, longitudinal and lateral) diffusion can be achieved, thereby further increasing the overall air supply coverage (or air supply area). Based on the structural design of the first diffusion component 20 and the second diffusion component 30, the first diffusion airflow can be a fan-shaped diffusion airflow in the first direction 001, and the second diffusion airflow can be a fan-shaped diffusion airflow in both the first direction 001 and the second direction 002, so that the whole is a spherical diffusion airflow. By diffusing the air supply coverage range of the first diffusion airflow in the second direction, the air supply coverage range of the formed second diffusion airflow in the second direction can be wider than that of the first diffusion airflow. In addition, since the second diffusion component 30 can act as a baffle in the flow path of the first diffusion airflow, the speed of the first diffusion airflow can be further reduced after diffusion, thereby making the speed of the formed second diffusion airflow also lower. Therefore, the air supply airflow sent out by the fan 10 is diffused in two stages by the two diffusion components in the air supply system 100, the speed of the air supply airflow can be further reduced, and the air supply coverage range can be further widened, and the air supply effect is better. After that, the second diffusion airflow can be directly sent into the machine room 101.

[0135] Further, in one embodiment, if the air supply system 100 in the above example includes an air supply plate 60 (such as a longitudinal louver wall or a transverse louver wall), the diffused airflow formed will first pass through the air supply plate, and its direction can be corrected to a parallel direction, so that the diffused airflow is adjusted to a large channel low-speed parallel airflow before being sent to the machine room 101. It is understandable that if the air supply system 100 does not include the air supply plate 60, the diffused airflow formed by diffusion can be directly sent to the machine room 101.

[0136] The air supply method provided in the embodiment of the present application can realize air flow diffusion and uniform pressure, and can be applied to the wall-mounted air supply environment of the computer room of the IT data center. Assuming that the fan is the module responsible for air supply in the air-conditioning equipment, when a single air supply system 100 is provided in the computer room 101, the air supply airflow delivered by the fan can be diffused in a single direction or multiple directions through one or two diffusion components in the air supply system 100, thereby increasing the air supply area of ​​a single room-level horizontal air supply air-conditioning equipment (such as AHU); and based on the openings formed between the blades in each diffusion component, the air supply wind speed can be made more uniform and the diffusion wind resistance can be lower.

[0137] The above implementations do not constitute a limitation on the protection scope of the technical solution. Any modifications, equivalent replacements and improvements made within the spirit and principles of the above implementations should be included in the protection scope of the technical solution.

Claims

1. An air supply system, comprising a fan and a first diffusion component; characterized in that: The first diffusion component is fixedly spaced from the air outlet of the fan, and the air supply airflow delivered by the fan is diffused by the first diffusion component to form a first diffused airflow; The first diffusion component includes a plurality of first blades, the plurality of first blades are arranged at intervals along a first direction, and the length direction of each of the first blades is respectively parallel to a second direction; the first direction and the second direction intersect; Each of the first blades includes a first air inlet side close to the fan and a first air outlet side away from the fan; wherein, along the first direction, the distance between the first air inlet sides of any two adjacent first blades is less than or equal to the distance between the first air outlet sides.

2. The air supply system according to claim 1, characterized in that: There is a distance difference between the first air inlet side edges and the first air outlet side edges of any two adjacent first blades in the first diffusion component, and the distance difference between the two adjacent first blades is in an increasing relationship in the first direction; or, There is a distance difference between the first air inlet side edges and the first air outlet side edges of two adjacent first blades in the first diffusion component, and in a direction extending from the center position of the first diffusion component to both sides along the first direction, the distance difference between the two adjacent first blades is in an increasing relationship; or, Each of the first blades in the first diffusion component has a respective blade inclination angle, and the blade inclination angles of two adjacent first blades are in increasing relationship in the first direction; or, Each of the first blades in the first diffusion component has a respective blade inclination angle, and in a direction extending from the center position of the first diffusion component to both sides along the first direction, the blade inclination angles of two adjacent first blades in the first diffusion component are in an increasing relationship; The blade inclination angle of the first blade refers to the angle between a plane where the length direction of the first blade is located and a plane where the second direction is located.

3. The air supply system according to claim 1, characterized in that: Each of the first blades in the first diffusion component has its own blade inclination angle, and the blade inclination angle of any of the first blades can be adjusted; by adjusting the blade inclination angle of each of the first blades, the direction and / or speed of the first diffusion airflow can be changed.

4. The air supply system according to claim 1, characterized in that: The air supply system further includes a flexible connection, which is provided between the air outlet of the fan and the first diffusion component, and the shape and size of the flexible connection are the same as those of the air outlet of the fan.

5. The air supply system according to claim 1, characterized in that: The air supply system further includes: a second diffusion component; the first diffusion component and the second diffusion component are arranged at a distance, and the first diffusion airflow sent by the first diffusion component is diffused by the second diffusion component to form a second diffusion airflow; The second diffusion component comprises a plurality of second blades, the plurality of second blades are arranged at intervals along the second direction, and the length direction of each second blade is parallel to the first direction; Each of the second blades includes a second air inlet side close to the fan and a second air outlet side away from the fan; wherein, along the second direction, the distance between the second air inlet sides of any two adjacent second blades is less than or equal to the distance between the second air outlet sides.

6. The air supply system according to claim 5, characterized in that: There is a distance difference between the second air inlet sides and the second air outlet sides of any two adjacent second blades in the second diffusion component, and the distance difference between the two adjacent second blades is in an increasing relationship in the second direction; or, There is a distance difference between the second air inlet side edges and the second air outlet side edges of any two adjacent second blades in the second diffusion component, and in a direction extending from the center position of the second diffusion component to both sides along the second direction, the distance difference between two adjacent second blades is in an increasing relationship; or, Each of the second blades in the second diffusion component has a respective blade inclination angle, and the blade inclination angles of two adjacent blades are in increasing relationship in the second direction; or, Each of the second blades in the second diffusion component has a respective blade inclination angle, and in a direction extending from the center position of the second diffusion component to both sides along the second direction, the blade inclination angles of two adjacent second blades in the second diffusion component are in an increasing relationship; The blade inclination angle of the second blade refers to the angle between the plane where the length direction of the second blade is located and the plane where the first direction is located.

7. The air supply system according to claim 5, characterized in that: Each of the second blades in the second diffusion component has its own blade inclination angle, and the blade inclination angle of any second blade can be adjusted; by adjusting the blade inclination angle of each of the second blades, the direction and / or speed of the second diffusion airflow can be changed.

8. The air supply system according to claim 5, characterized in that: The first diffusion component and the second diffusion component are both guide air valves, and the first plurality of blades of the first diffusion component include: louvers with adjustable blade inclination angles, or guide plates with fixed blade inclination angles; the second plurality of blades of the second diffusion component include: louvers with adjustable blade inclination angles, or guide plates with fixed blade inclination angles; The intersection between the first direction and the second direction includes: a perpendicular intersection.

9. The air supply system according to claim 5, characterized in that: The air supply system further includes: a first air supply duct, the first air supply duct being arranged between the first diffusion component and the second diffusion component; a first diffusion airflow delivered by the first diffusion component is transferred to the second diffusion component after being guided by the first air supply duct; The first air supply duct is a three-dimensional structure with two openings at both ends, one of which is an air inlet end and the other is an air outlet end. The air inlet end of the first air supply duct is arranged at the air outlet side of the first diffusion component, and the air outlet end of the first air supply duct is arranged at the air inlet side of the second diffusion component. The first diffusion airflow sent out by the first diffusion component flows into the first air supply duct from the air inlet end of the first air supply duct, and is then guided to the second diffusion component through the air outlet end of the first air supply duct.

10. The air supply system according to claim 9, characterized in that: The cross-sectional area of ​​the first air supply duct at the air inlet end is greater than or equal to the cross-sectional area of ​​the air outlet side of the first diffusion component; the cross-sectional area of ​​the air inlet side of the second diffusion component is greater than or equal to the cross-sectional area of ​​the first air supply duct at the air outlet end.

11. The air supply system according to claim 5 or 9, characterized in that: The air supply system further includes: a second air supply duct, the second air supply duct being a three-dimensional structure with two openings at both ends, one of the openings being an air inlet end, and the other opening being an air outlet end; The air inlet end of the second air supply duct is arranged on the air outlet side of the second diffusion component; the second diffusion airflow delivered by the second diffusion component flows from the air inlet end of the second air supply duct into the second air supply duct, and then flows out through the air outlet end of the second air supply duct.

12. The air supply system according to claim 5, characterized in that: The air supply system includes a first air supply duct and a second air supply duct; the first air supply duct and the second air supply duct are both three-dimensional structures with openings at both ends, the three-dimensional structure of the first air supply duct is a first three-dimensional structure, and the three-dimensional structure of the second air supply duct is a second three-dimensional structure; The first three-dimensional structure and the second three-dimensional structure are the same or different; The first three-dimensional structure includes: one of a step structure, a rectangular parallelepiped structure and a cube structure; the second three-dimensional structure includes: one of a step structure, a rectangular parallelepiped structure and a cube structure.

13. The air supply system according to claim 12, characterized in that: The first air supply duct is arranged between the first diffusion component and the second diffusion component; the three-dimensional structure of the first air supply duct is a step structure; the first air supply duct has at least one side wall with an inclination angle relative to the plane where the second direction is located, and the inclination angle of the side wall of the first air supply duct makes the first air supply duct expand at the air outlet end of the first air supply duct relative to the air inlet end; The inclination angle of the side wall of the first air supply duct is less than a first preset angle threshold; the first blade in the first diffusion component is at a distance less than a first preset distance threshold from the side wall of the second air supply duct in the first direction, and the angle difference between the corresponding blade inclination angle and the inclination angle of the side wall of the first air supply duct is less than the angle difference threshold.

14. The air supply system according to claim 12, characterized in that: The second air supply duct is arranged at the air outlet side of the second diffusion component, the three-dimensional structure of the second air supply duct is a step structure, the second air supply duct has at least one side wall with an inclination angle relative to the plane where the first direction is located, and the inclination angle of the side wall of the second air supply duct makes the second air supply duct expand at the air outlet end relative to the air inlet end of the second air supply duct; The inclination angle of the side wall of the second air supply duct is less than a second preset angle threshold; the second blade in the second diffusion component is at a distance less than a second preset distance threshold from the side wall of the second air supply duct in the second direction, and the angle difference between the corresponding blade inclination angle and the inclination angle of the side wall of the second air supply duct is less than the angle difference threshold.

15. The air supply system according to claim 12, characterized in that: The three-dimensional structure of the first air supply duct is a rectangular parallelepiped structure or a cube structure; The first air supply duct and the second air supply duct are both arranged between the first diffusion component and the second diffusion component, the air inlet end of the first air supply duct is arranged on the air outlet side of the first diffusion component, the air outlet end of the first air supply duct is connected to the air inlet end of the second air supply duct, and the air outlet end of the second air supply duct is arranged on the air inlet side of the second diffusion component; or, The first air supply duct is arranged between the fan and the first diffusion component, and the second air supply duct is arranged between the first diffusion component and the second diffusion component; the air outlet end of the first air supply duct is arranged at the air inlet side of the first diffusion component, the air inlet end of the second air supply duct is arranged at the air outlet side of the first diffusion component, and the air outlet end of the second air supply duct is arranged at the air inlet side of the second diffusion component; or, The first air supply duct and the second air supply duct are both arranged between the fan and the first diffusion component, the air inlet end of the first air supply duct is arranged at the air outlet of the fan, the air outlet end of the first air supply duct is connected to the air inlet end of the second air supply duct, and the air outlet end of the second air supply duct is arranged on the air inlet side of the first diffusion component.

16. The air supply system according to claim 1, characterized in that: The air supply system further includes an air supply plate, which is arranged on one side of the air supply airflow delivered by the fan, and the air supply airflow delivered by the fan flows into the machine room through the air supply plate after being diffused; The air supply plate comprises a plurality of air supply blades, the plurality of air supply blades are arranged at intervals along the second direction, and the length direction of each of the air supply blades is parallel to the first direction; or, The air supply plate includes an air filter, and the angle of the mesh sheet of the air filter is fixed.

17. The air supply system according to claim 16, characterized in that: The air supply system further includes a fire damper; the fire damper is arranged on the side of the air supply airflow delivered by the fan, and a transfer space is formed between the fire damper and the air supply plate at a fixed interval; When the fire damper is opened, the air supply airflow sent by the fan is allowed to flow into the machine room after diffusion; when the fire damper is closed, the air supply airflow sent by the fan is blocked from flowing into the machine room after diffusion.

18. The air supply system according to claim 17, characterized in that: The machine room is provided with a plurality of the air supply systems, and the air supply systems are arranged at intervals; If two adjacent air supply systems are both provided with air supply ducts, and the side walls of the air supply ducts in the two adjacent air supply systems intersect, then the intersection point is located in the transfer space; If two adjacent air supply systems are both provided with diffusion components, the intersection of the extended lines of the blade inclination angles of adjacent blades in the diffusion components in the two adjacent air supply systems is located in the transfer space.

19. A data center, characterized in that: It comprises a machine room and an air supply system as claimed in any one of claims 1 to 18; wherein the air outlet of the fan is connected to the interior of the machine room.

20. A method for supplying air, characterized in that: The method is applied to the air supply system according to any one of claims 1 to 18, and the method comprises: The air supply airflow is sent out through the fan; diffusing the air supply airflow to form a diffused airflow; The diffused airflow is sent into the machine room.

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