Fan wall

Abstract

This invention provides a fan wall, belonging to the technical field of air conditioning equipment, including a mounting frame, multiple axial flow fans, multiple air supply duct assemblies, and multiple drive devices. Each axial flow fan has four air supply duct assemblies on its outer side. Each air supply duct assembly includes two horizontally arranged ducts. Each drive device drives the outlet of one duct to move obliquely upwards away from the other duct to the rear side of the corresponding axial flow fan, and obliquely downwards away from the other duct to the rear side of the corresponding axial flow fan. The air supply duct assemblies generate and transport high-speed airflow, which is ejected from the outlet of the duct, improving the uniformity of airflow and air circulation speed of the fan wall. When an axial flow fan malfunctions, the drive device drives the outlet of the corresponding duct to move and deflect, blowing high-speed airflow towards the inlet of that axial flow fan. The high-speed airflow is blown out from the outlet of the axial flow fan along the fan's duct, preventing the formation of backflow at the stopped axial flow fan.

Description

Technical Field

[0001] This invention relates to the field of air conditioning equipment technology, and in particular to a fan wall. Background Technology

[0002] Fan walls typically consist of multiple fans arranged in a configuration. These fans are mounted on a frame, drawing air from one side of the frame and blowing it to the other, achieving rapid airflow. Compared to a single large fan, multiple fans create a more uniform airflow and increase air circulation speed. However, using multiple fans also increases the failure rate. If one or more fans fail, the fan wall can continue to operate, but the uniformity of the airflow will deteriorate, and the air circulation speed will decrease. Furthermore, backflow may occur at the location of the failed fan, further reducing the effectiveness of the fan wall's airflow. Summary of the Invention

[0003] In view of the above problems, the present invention provides a fan wall that overcomes or at least partially solves the above problems, so as to achieve uniform airflow and reduce the reduction of airflow speed when one or more fans in the fan wall fail.

[0004] Specifically, the present invention proposes a fan wall, comprising a mounting frame and an array of axial flow fans, multiple air supply duct groups, and multiple drive devices arranged on the mounting frame. Each air supply duct group is disposed in the space between the axial flow fans or in the space between the axial flow fans and the mounting frame, such that each axial flow fan has four air supply duct groups on its outer side.

[0005] Each of the air supply duct groups includes two horizontally arranged ducts, and each of the drive devices is used to drive the outlet of one duct to move obliquely upward away from the other duct to the rear side of the corresponding axial flow fan and obliquely downward away from the other duct to the rear side of the corresponding axial flow fan.

[0006] Optionally, each of the drive devices includes a translation frame, a rotating frame, a rotating rod, and a transmission device.

[0007] The rotating frame is rotatably mounted on the mounting frame; the rotating frame is provided with a slide rail, the slide rail including a retracting section and a positioning section; the retracting section extends in the front-back direction, the front end of the positioning section is connected to the rear end of the retracting section, and the positioning section is inclined relative to the retracting section.

[0008] The translation frame is movably mounted on the rotating frame.

[0009] The rotating rod includes a vertically extending rotating rod, a horizontally arranged connecting rod, and a vertically extending sliding rod. The sliding rod is inserted into the slide rail and slides and rotates within the slide rail. The connecting rod connects the upper end of the sliding rod and the lower end of the rotating rod. The rotating rod is rotatably mounted on the translation frame.

[0010] The transmission device includes a bracket mounted on the mounting frame and a sliding connecting rod; the rotating frame has an arc surface coaxial with its rotation axis, and two symmetrically arranged sliding grooves are provided on the arc surface, the front ends of the two sliding grooves intersect, one end of the sliding connecting rod is inserted into the sliding groove, the sliding connecting rod is movably mounted on the bracket, and the sliding connecting rod is movably mounted on the translation frame along the circumference of the arc surface; the rotation axis of the rotating frame is the axis of the arc surface.

[0011] Optionally, the rotating frame includes a horizontal support plate, an arc-shaped half-tube, and a connecting frame.

[0012] The horizontal support plate is disposed on the upper or lower side of the air duct, and the slide rail is disposed on the horizontal support plate.

[0013] The arc-shaped semi-tube is disposed on one side of the air duct and arches towards the air duct; the two sliding grooves are disposed on the arc-shaped semi-tube.

[0014] The connecting frame is disposed between the arc-shaped half-tube and the horizontal support plate.

[0015] Optionally, the radii of the two arc-shaped half-pipes corresponding to each air supply duct group of the connecting frame are not equal, and the two arc-shaped half-pipes are coaxially arranged.

[0016] Optionally, the outlet of each duct is located in front of the outlet of the axial fan or between the outlet of the axial fan and the outlet of the axial fan; air is supplied to the duct using at least one centrifugal fan, which is mounted on the mounting bracket and located outside all the axial fans.

[0017] Optionally, the inlets of the two ducts in each of the air supply duct groups are connected to the outlet of a main duct via an air distribution structure; the air distribution structure includes a main connector, two branch connectors, and an air distribution assembly.

[0018] The main connector is a square pipe, and the main connector is connected to the main air duct.

[0019] The two branch connectors are formed on the main connector and are respectively connected to the main connector and the two air ducts; the two branch connectors are spaced apart.

[0020] The air distribution assembly includes two vertically arranged telescopic plates and a vertically arranged partition plate. The front ends of the two telescopic plates are rotatably mounted on the rear ends of two adjacent side walls of the two branch joints, and the rear ends of the two telescopic plates are rotatably connected. The partition plate is movably installed in the main joint in the lateral direction, and the front end of the partition plate is rotatably connected to the rear ends of the two telescopic plates.

[0021] Optionally, each of the two sliding connecting rods corresponding to each air supply duct assembly is provided with a rack.

[0022] The bracket is provided with gears that mesh with the two racks. The gears are configured to slide in the front-back direction and rotate about their own central axis.

[0023] A first rotating shaft is rotatably mounted on one side of the gear, and a second rotating shaft is rotatably mounted on the partition plate; a rocker arm is slidably connected to the first rotating shaft, and the rocker arm is rotatably connected to the bracket at a distance away from the first rotating shaft, and the end of the rocker arm away from the first rotating shaft is slidably connected to the second rotating shaft.

[0024] Optionally, the centrifugal fan is a double-suction centrifugal fan, and at least one baffle is provided at the outlet of each centrifugal fan so that the outlet of the centrifugal fan has at least two sub-air outlets, and each sub-air outlet is connected to one of the main air ducts.

[0025] Optionally, the wind turbine wall proposed in this invention also includes multiple fault detection devices.

[0026] Each of the fault detection devices is used to detect whether one of the axial flow fans has stopped, so that when the axial flow fan stops, the corresponding duct is moved to the rear side of the axial flow fan by the corresponding drive device.

[0027] Optionally, the duct includes a rigid pipe and a flexible hose fitted onto the front end of the rigid pipe, the opening of which is the outlet of the duct.

[0028] This invention proposes a fan wall comprising multiple air supply duct assemblies and multiple cooperating drive devices arranged between an axial flow fan and a mounting frame. Each axial flow fan has four air supply duct assemblies on its outer side. The air supply duct assemblies can generate and transport high-speed airflow, which is ejected from the outlet of the duct, thereby improving the uniformity of airflow and increasing the air circulation speed of the fan wall.

[0029] Furthermore, when one or more axial fans in the fan wall malfunction, four air ducts at the four corners of the axial fan will still be blowing air, which can maintain the uniform airflow effect of the fan wall and improve the air circulation speed as much as possible. At the same time, it can also prevent the formation of return airflow at the malfunctioning axial fan to a certain extent.

[0030] Furthermore, the drive unit drives the outlet of the corresponding air duct to move and deflect towards the axial flow fan at an angle upward or downward, so that the high-speed airflow in the air supply duct group blows towards the inlet of the stopped axial flow fan, and blows out from the outlet of the axial flow fan along the air duct of the axial flow fan, further maintaining the uniform blowing effect of the fan wall and improving the air circulation speed, while avoiding the formation of backflow at the stopped axial flow fan. Attached Figure Description

[0031] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0032] Figure 1 This is a schematic front view of a fan wall according to an embodiment of the present invention;

[0033] Figure 2 This is a schematic rear view of a wind turbine wall according to an embodiment of the present invention;

[0034] Figure 3 This is a schematic rear view of a wind turbine wall according to another embodiment of the present invention.

[0035] Figure 4 This is a schematic structural diagram of the drive device and duct of a fan wall according to an embodiment of the present invention;

[0036] Figure 5 This is a schematic structural diagram of a drive device for a wind turbine wall according to an embodiment of the present invention;

[0037] Figure 6 This is a schematic structural diagram of the combination of the slide rail, rotating rod and air duct of the fan wall according to an embodiment of the present invention;

[0038] Figure 7 This is a schematic front view of the drive device and duct of a fan wall according to an embodiment of the present invention;

[0039] Figure 8 This is a schematic structural diagram of a combination of a centrifugal fan, a connecting pipe, and a duct in a fan wall according to an embodiment of the present invention;

[0040] Figure 9 This is a schematic structural diagram of the air distribution structure of a fan wall according to an embodiment of the present invention;

[0041] Figure 10 This is a schematic structural diagram of a combination of rack, gear, rocker arm and partition plate of a fan wall according to an embodiment of the present invention. Detailed Implementation

[0042] The following reference Figures 1 to 10 The following describes the wind turbine wall according to an embodiment of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0043] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Fan walls are commonly used in large air conditioners, large air purifiers, and other similar equipment to drive rapid airflow and exchange in the vicinity. A fan wall typically consists of multiple axial fans arranged in a configuration on a mounting frame. When the axial fans are running, they draw air from the inlet side of the axial fans and discharge it to the outlet side, achieving rapid airflow and exchange. Compared to using a single large fan, using multiple fans in combination can produce a more uniform extraction or blowing effect and increase airflow speed. However, using multiple fans also increases the failure rate. If one or more fans fail, the fan wall can continue to operate, but the uniformity of the extraction or blowing effect will deteriorate, and the airflow speed will decrease. It may even create backflow at the location of the failed fan, further reducing the effectiveness of the fan wall's extraction or blowing.

[0047] Figure 1 This is a schematic structural diagram of a wind turbine wall according to an embodiment of the present invention, such as... Figure 1 As shown, and with reference Figures 2 to 10 An embodiment of a fan wall provided by the present invention includes a mounting frame 1 and a plurality of axial flow fans 2, a plurality of air supply duct groups, and a plurality of drive devices 4 arranged in an array on the mounting frame 1. Each air supply duct group is disposed in the space between the axial flow fans 2 or in the space between the axial flow fans 2 and the mounting frame 1, such that each axial flow fan 2 has four air supply duct groups on its outer side.

[0048] When in use, each air supply duct assembly can generate and transport high-speed airflow. The high-speed airflow is blown out from the outlet of the air duct 3. In other words, when all axial flow fans 2 are running normally, the air supply duct assembly plays an auxiliary blowing effect, which can accelerate the air circulation speed and increase the uniform air output effect.

[0049] When one or more axial flow fans 2 malfunction, an air outlet gap appears at the location of the axial flow fan 2, affecting the airflow speed at that location. At this time, the air supply duct assembly continues to blow air normally through the outlets of the air ducts 3 located at the four corners of the axial flow fan 2, which to some extent compensates for the air outlet gap, allowing the entire fan wall to continue to operate normally.

[0050] On the other hand, when one of the axial flow fans 2 stops operating, without the air supply duct assembly in this embodiment, not only will an air outlet gap be formed at that axial flow fan 2, but also, due to the normal air supply from the surrounding axial flow fans 2, a return airflow will form at that axial flow fan 2, further reducing the air supply effect of the surrounding axial flow fans 2. In this embodiment, four air duct outlets 3 are provided at the four corners of the stopped axial flow fan 2. The high-speed airflow blown out from the air duct 3 will, to a certain extent, prevent the formation of a return airflow at that axial flow fan 2, or reduce the return air at that location, thereby maintaining the normal air supply effect of the fan wall.

[0051] In this embodiment, each air supply duct assembly includes two horizontally arranged air ducts 3 extending in the front-to-back direction, such as... Figure 3 As shown, each drive unit 4 is used to drive the outlet of one duct 3 to move obliquely upward away from the other duct 3 to the rear side of the corresponding axial flow fan 2, and obliquely downward away from the other duct 3 to the rear side of the corresponding axial flow fan 2. That is, each air supply duct group includes two ducts 3. The outlet of the first duct 3 can move to the rear side of the axial flow fan 2 located to its upper left or lower left, blowing air towards the inlet of the axial flow fan 2 located to its upper left or lower left. The outlet of the second duct 3 can move to the rear side of the axial flow fan 2 located to its upper right or lower right, blowing air towards the inlet of the axial flow fan 2 located to its upper left or lower left. This arrangement reduces the number of air supply duct groups and lowers production costs.

[0052] In use, multiple air supply duct assemblies and corresponding drive devices 4 are installed between the axial flow fan 2 and the mounting frame 1. The drive devices 4 drive the outlet of the air duct 3 to the corresponding position of the inlet of the axial flow fan 2. The air supply duct assembly generates and transports high-speed airflow. The high-speed airflow is ejected from the outlet of the air duct 3, blown into the air duct of the axial flow fan 2, and blown out from the outlet of the axial flow fan 2 along the air duct of the axial flow fan 2. In this way, even if the axial flow fan 2 stops, neither an air outlet gap nor a return airflow will be formed at the axial flow fan 2. This further improves the overall airflow speed and uniform air output effect of the fan wall when one or more axial flow fans 2 are stopped.

[0053] In some alternative embodiments of the present invention, such as Figure 2 As shown, the outlet of each duct 3 is located in front of the inlet of the axial flow fan 2 or between the inlet and outlet of the axial flow fan 2; air is supplied to the duct 3 by at least one centrifugal fan 5, which is mounted on the mounting frame 1 and located outside all the axial flow fans 2.

[0054] Centrifugal fan 5 can continuously output high-speed airflow, which flows along duct 3 and is blown out from the outlet of duct 3. Centrifugal fan 5 is set outside axial fan 2, so it does not interfere with the normal air extraction and exhaust operation of axial fan 2, and makes full use of the remaining space of mounting bracket 1.

[0055] In some optional embodiments of the present invention, each axial flow fan 2 operates first. When an axial flow fan 2 fails, the corresponding centrifugal fan 5 and duct 3 can be started. In some optional embodiments of the present invention, each axial flow fan 2, centrifugal fan 5, and duct 3 operates. When an axial flow fan 2 fails, the corresponding centrifugal fan 5 can be accelerated to ensure the operation of the fan wall.

[0056] In some optional embodiments of the present invention, the outlet of each duct 3 is a constricted structure. The constricted structure gradually reduces the cross-sectional area of ​​the duct 3 to increase the velocity of the high-speed airflow at the outlet of the duct 3, so that the high-speed airflow in the duct 3 can be blown into the duct of the axial flow fan 2 as much as possible, thereby improving the uniform airflow effect of the fan wall. On the other hand, the high-speed airflow can also clean the duct of the axial flow fan 2, reducing the risk of malfunctions caused by blockages in the axial flow fan 2.

[0057] In some alternative embodiments of the present invention, the outlet of each duct 3 is circular or semi-circular, preferably semi-circular.

[0058] In some alternative embodiments of the present invention, such as Figure 4-7 As shown, each drive unit 4 includes a translation frame 41, a rotating frame 42, a rotating rod 43, and a transmission device 44.

[0059] The drive unit 4 is used to drive the outlet of the corresponding air duct 3 to the designated position. The two drive units 4 corresponding to the same air duct group are the drive unit 4 located at the upper left and the drive unit 4 located at the lower right, respectively, as shown below. Figure 7 As shown, the two drive devices 4 are arranged symmetrically with respect to the rotation axis of the rotating frame 42, that is, the rotation axes of the rotating frames 42 of the two drive devices are collinear.

[0060] The drive unit 4 located at the upper left has three states. The first state is that the drive unit 4 moves the outlet of the duct 3 into the gap between the axial fan 2 and the mounting bracket 1, or into the gap between the axial fans 2, to blow air forward; this is the initial position. The second state is that the outlet of the duct 3 is moved rearward and to the upper left, so that the outlet of the duct 3 is aligned with the rear side of the axial fan 2 located in the upper left direction. The third state is that the outlet of the duct 3 is moved rearward and to the lower left, so that the outlet of the duct 3 is aligned with the rear side of the axial fan 2 located in the lower left direction. The drive unit 4 located at the lower right also has three states. The first state is that the drive unit 4 moves the outlet of the duct 3 into the gap between the axial fan 2 and the mounting bracket 1, or into the gap between the axial fans 2, to blow air forward; this is the initial position. The second state is that the outlet of the duct 3 is moved rearward and to the upper right, so that the outlet of the duct 3 is aligned with the rear side of the axial fan 2 located in the upper right direction. The third state is to move the outlet of duct 3 to the lower right so that the outlet of duct 3 is aligned with the rear side of the axial flow fan 2 located in the lower right direction.

[0061] Specifically, the rotating frame 42 is rotatably mounted on the mounting frame 1. The rotating frame 42 is provided with a slide rail 422, which includes a retraction section 4221 and a positioning section 4222. The retraction section 4221 extends in the front-back direction, and the front end of the positioning section 4222 is connected to the rear end of the retraction section 4221. The positioning section 4222 is inclined relative to the retraction section 4221.

[0062] The translation frame 41 is movably mounted on the rotating frame 42. The rotating rod 43 includes a vertically extending rotating rod 431, a horizontally arranged connecting rod 432, and a vertically extending sliding rod 433. The sliding rod 433 is inserted into the slide rail 422 and slides and rotates within the slide rail 422. The connecting rod 432 connects the upper end of the sliding rod 433 and the lower end of the rotating rod 431. The rotating rod 431 is rotatably mounted on the translation frame 41.

[0063] The transmission device 44 includes a bracket mounted on the mounting frame 1 and a sliding connecting rod 441; the rotating frame 42 has an arc surface coaxial with its rotation axis, and two symmetrically arranged sliding grooves 4231 are provided on the arc surface. The front ends of the two sliding grooves 4231 intersect, and one end of the sliding connecting rod 441 is inserted into the sliding groove 4231. The sliding connecting rod 441 is movably mounted on the bracket and can move back and forth. The sliding connecting rod 441 is movably mounted on the translation frame 41 along the circumference of the arc surface; the rotation axis of the rotating frame 42 is the axis of the arc surface.

[0064] The transmission device 44 also includes a motor, which drives the rotating frame 42 to rotate along its axis of rotation, that is, around the central axis of the arc surface. The motor has two states, forward and reverse, driving the rotating frame 42 to rotate clockwise and counterclockwise, respectively.

[0065] The following explanation, using the drive unit 4 located at the lower right as an example, details its operating principle. When the rotating frame 42 rotates clockwise under the drive of the motor, as... Figure 4-7As shown, one end of the sliding connecting rod 441 slides from the front end of the two sliding grooves 4231 into the upper inclined sliding groove 4231. The sliding connecting rod 441 is slidably connected to the bracket of the mounting frame 1 and does not rotate synchronously with the rotating frame 42. Therefore, under the action of the upper inclined sliding groove 4231, the sliding connecting rod 441 moves backward. The sliding connecting rod 441 abuts against the translation frame 41, and the sliding connecting rod 441 drives the translation frame 41 to move backward. The translation frame 41 is rotatably connected to the rotating rod 43, and the translation frame 41 drives the rotating rod 43 to move backward. That is to say, it causes the sliding rod 433 to slide backward in the slide rail 422, slide past the retraction section 4221, and enter the positioning section 4222. The outlet of duct 3 is fixedly connected to the rotating rod 431. Therefore, the outlet of duct 3 moves backward under the drive of the rotating rod 43, from the position between the axial flow fan 2 and the mounting bracket 1 to the rear end extending from the axial flow fan 2. Because the positioning section 4222 is inclined relative to the retraction section 4221, the sliding rod 433 changes its direction of movement to the left when it enters the positioning section 4222, causing the rotating rod 431 at the other end of the rotating rod 43 to rotate to the right by an angle. That is, after the outlet of duct 3 moves backward and extends beyond the rear end of the axial flow fan 2, it rotates to the right by an angle. On the other hand, the rotating rod 43 is rotatably connected to the translation frame 41, and the translation frame 41 is slidably connected to the rotating frame 42. When the rotating frame 42 rotates clockwise, it drives the translation frame 41 to rotate clockwise, and the translation frame 41 drives the rotating rod 43 to rotate clockwise, that is, the rotating rod 431 rotates clockwise by an angle. Figure 7 As shown, when the drive device 4 located at the lower right is in the first state, the outlet of the duct 3 and the rotation axis of the rotating frame 42 are on the same horizontal plane. When the rotating frame 42 rotates clockwise by an angle, the outlet of the duct 3 moves backward, deflects to the right, and rotates downward. In summary, when the rotating frame 42 rotates clockwise by an angle, the outlet of the duct 3 moves backward, moves downward, and rotates to the right. The effect is that the outlet of the duct 3 extends backward beyond the rear end of the axial flow fan 2 and moves and turns towards the center position of the rear end of the axial flow fan 2 located at the lower right. This allows the high-speed airflow in the duct 3 to be blown into the air duct at the rear end of the axial flow fan 2 located at the lower right.

[0066] Similarly, when the rotating frame 42 of the drive unit 4 located at the lower right rotates counterclockwise, the outlet of the duct 3 extends backward beyond the rear end of the axial flow fan 2, and moves and turns towards the center position of the rear end of the axial flow fan 2 located at the upper right. This causes the high-speed airflow in the duct 3 to be blown into the air duct at the rear end of the axial flow fan 2 located at the upper right.

[0067] When the rotating frame 42 of the drive unit 4 located on the upper left rotates clockwise, the outlet of the duct 3 extends backward beyond the rear end of the axial flow fan 2, and moves and turns towards the center position of the rear end of the axial flow fan 2 located on the upper left side. This causes the high-speed airflow in the duct 3 to be blown into the air duct at the rear end of the axial flow fan 2 located on the upper left side.

[0068] When the rotating frame 42 of the drive unit 4 located on the upper left rotates counterclockwise, the effect is that the outlet of the duct 3 extends backward beyond the rear end of the axial flow fan 2, and moves and turns towards the center position of the rear end of the axial flow fan 2 located on the lower left. This causes the high-speed airflow in the duct 3 to be blown into the air duct at the rear end of the axial flow fan 2 located on the lower left.

[0069] In some alternative embodiments of the present invention, such as Figure 4 As shown, the rotating frame 42 includes a horizontal support plate 421, an arc-shaped semi-tube 423, and a connecting frame 424. The horizontal support plate 421 is located on the upper or lower side of the air duct 3, and a slide rail 422 is located on the horizontal support plate 421. The arc-shaped semi-tube 423 is located on one side of the air duct 3 and arches towards the air duct 3; two sliding grooves 4231 are located on the arc-shaped semi-tube 423. The connecting frame 424 is located between the arc-shaped semi-tube 423 and the horizontal support plate 421. The horizontal support plate 421 is used to set the slide rail 422 and restrict the translation frame 41 so that it can only move on the surface of the horizontal support plate 421. The connecting frame 424 is used to fix the arc-shaped semi-tube 423 and the horizontal support plate 421.

[0070] In some alternative embodiments of the present invention, such as Figure 7 As shown, the radii of the two arc-shaped semi-tubes 423 corresponding to each air supply duct group of the connecting frame 424 are unequal, and the two arc-shaped semi-tubes 423 are coaxially arranged. Setting the radii of the two arc-shaped semi-tubes 423 to be large and small respectively ensures that the two rotating frames 42 do not interfere with each other when one or both of the two driving devices 4 are running. For example, when the rotating frame 42 of the driving device 4 located on the upper left rotates clockwise and the rotating frame 42 of the driving device 4 located on the lower right rotates counterclockwise, they do not collide with each other.

[0071] In some optional embodiments of the present invention, the inlets of the two ducts 3 of each air supply duct group are connected to the outlet of a main air duct 51 via an air distribution structure 32; the air distribution structure 32 includes a main connector 321, two branch connectors 322, and an air distribution assembly 323. The main connector 321 is a square tube and connects to the main air duct. The two branch connectors 322 are formed on the main connector 321 and respectively connect the main connector 321 and the two ducts 3; the two branch connectors 322 are spaced apart.

[0072] The air distribution assembly 323 includes two vertically arranged telescopic plates 3231 and a vertically arranged central partition 3232, such as Figure 9 As shown, the front ends of the two telescopic plates 3231 are rotatably mounted on the rear ends of the two adjacent side walls of the two tap joints 322, and the rear ends of the two telescopic plates 3231 are rotatably connected; the partition plate 3232 is movably mounted in the main joint 321 in the lateral direction, and the front end of the partition plate 3232 is rotatably connected to the rear ends of the two telescopic plates 3231.

[0073] In this embodiment, the air distribution structure 32 is used to divide one air duct 3 into two air ducts 3, which can reduce the number of centrifugal fans 5. The air distribution assembly 323 is used to adjust the air volume in the two air ducts 3. For example, when the axial flow fan 2 on the lower right side of the air supply duct group fails, the partition plate 3232 moves to the left, delivering more air volume to the air duct 3 on the right side, so that the high-speed airflow at the outlet of the air duct 3 on the right side is larger, so as to maintain the air circulation speed and uniform blowing effect at the fault location and avoid the formation of backflow at that location.

[0074] In some alternative embodiments of the present invention, such as Figure 10 As shown, each of the two sliding connecting rods 441 corresponding to each air supply duct assembly is equipped with a rack 61. A gear 62 is mounted on the bracket, meshing with the two racks 61. The gear 62 is configured to slide in the front-to-back direction and rotate around its own central axis. A first rotating shaft 63 is mounted on one side of the gear 62, and a second rotating shaft is rotatably mounted on the partition plate 3232. A rocker arm 64 is slidably connected to the first rotating shaft 63. A portion of the rocker arm 64, located a distance away from the first rotating shaft 63, is rotatably connected to the bracket. The end of the rocker arm 64, located a distance away from the first rotating shaft 63, is slidably connected to the second rotating shaft.

[0075] In this embodiment, the air distribution structure 32 is configured to be linked with the drive device 4. For example, when the axial flow fan 2 on the lower right side stops, the rotating frame 42 of the drive device 4 on the lower right side rotates clockwise, causing the outlet of the air duct 3 to extend rearward beyond the rear end of the axial flow fan 2, and to move and turn towards the center position of the rear end of the axial flow fan 2 on the lower right side. At the same time, the sliding connecting rod 441 of the drive device 4 on the lower right side moves rearward, and the rack 61 on the sliding connecting rod 441 moves rearward accordingly.

[0076] At this time, if the drive unit 4 located on the upper left is in the first state, then the rack 61 of the drive unit 4 located on the lower right will drive the gear 62 to rotate clockwise by an angle. The first shaft 63 on the gear 62 will then move to the right by a certain distance. The first shaft 63 will drive the swing arm 64 to rotate counterclockwise by an angle. That is to say, the other end of the swing arm 64 will move to the left by a certain distance, and the partition plate 3232 will move to the left by a certain distance. The effect is that the air duct 3 located on the right receives more airflow.

[0077] At this time, if the drive unit 4 located on the upper left side synchronously switches from the first state to the second or third state, then the rack 61 of the drive unit 4 located on the lower right side and the rack 61 of the drive unit 4 located on the upper left side will drive the gear 62 to move backward a certain distance. The gear 62 will not rotate, the rocker arm 64 will not swing, and the partition plate 3232 will be in the middle position. The effect is that the air ducts 3 located on the left and right sides receive the same air volume.

[0078] In summary, the effect of the air distribution structure 32 and the drive device 4 working together is that when the drive device 4 located in the upper left is running, the air distribution structure 32 will input more air volume into the left duct 3; when the drive device 4 located in the lower right is running, the air distribution structure 32 will input more air volume into the right duct 3; when the drive devices 4 on both sides are running simultaneously, the air distribution structure 32 will input the same amount of air volume into the ducts 3 on both sides.

[0079] In some optional embodiments of the present invention, the centrifugal fan 5 is a double-suction centrifugal fan 5, and at least one baffle is provided at the outlet of each centrifugal fan 5 so that the outlet of the centrifugal fan 5 has at least two sub-air outlets, each sub-air outlet being connected to a main air duct. The double-suction centrifugal fan 5 can generate a larger air volume, and the provision of multiple sub-air outlets can reduce the number of centrifugal fans 5, making it easier to install in a compact fan wall.

[0080] To facilitate airflow, a main air duct 51 is installed between the outlet of the centrifugal fan 5 and the air duct 3, such as... Figure 8 As shown, the main duct 51 is located outside the gap between the two axial flow fans 2, so as not to affect the air intake of the axial flow fans 2 as much as possible. Furthermore, the main duct 51 is at a certain distance from the plane where the inlet of the axial flow fan 2 is located, that is, the main duct 51 is spaced apart from the plane where the inlet of the axial flow fan 2 is located.

[0081] In some optional embodiments of the present invention, the fan wall proposed in this invention further includes multiple fault detection devices. Each fault detection device is used to detect whether an axial flow fan 2 has stopped rotating, so that when the axial flow fan 2 stops rotating, the corresponding air duct 3 is moved to the rear side of the axial flow fan 2 by a corresponding drive device 4. The fault detection device may include an airflow sensor for detecting the airflow at the outlet of the axial flow fan 2 to determine whether the axial flow fan 2 is operating normally. The fault detection device may include a speed sensor, which is set at the rear end of the motor of the axial flow fan 2 for detecting the motor speed to determine whether the axial flow fan 2 is operating normally.

[0082] In some alternative embodiments of the present invention, the fault detection device is configured to periodically detect the operating status of the axial flow fan 2. Upon detecting that the axial flow fan 2 has stopped, the device shuts down the stopped axial flow fan 2 and simultaneously moves the outlet of the duct 3 to the vicinity of the inlet of the axial flow fan 2 via a drive device for air blowing. It can also issue a warning message to notify maintenance personnel to promptly repair the stopped axial flow fan 2.

[0083] In some alternative embodiments of the present invention, the duct 3 includes a rigid pipe and a flexible hose fitted onto the front end of the rigid pipe, the opening of which serves as the outlet of the duct 3. The flexible hose facilitates movement and steering by the drive device 4.

[0084] In some optional embodiments of the present invention, the opening of the hose is provided with a rigid constriction structure, which slowly reduces the cross-sectional area of ​​the duct 3 to increase the flow rate of the high-speed airflow at the outlet of the duct 3, and further improve the blowing effect into the duct toward the inlet of the axial flow fan 2.

[0085] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A fan wall, comprising a mounting frame and a plurality of axial flow fans arrayed on the mounting frame, characterized in that, It also includes multiple air supply duct groups and multiple drive devices, each of the air supply duct groups being disposed in the space between the axial flow fans or in the space between the axial flow fans and the mounting frame, so that each of the axial flow fans has four air supply duct groups on its outer side; Each of the air supply duct groups includes two horizontally arranged ducts extending in a front-to-back direction. Each of the drive devices is used to drive the outlet of one of the ducts to move obliquely upward away from the other duct to the rear side of the corresponding axial flow fan and obliquely downward away from the other duct to the rear side of the corresponding axial flow fan.

2. The fan wall according to claim 1, characterized in that, Each of the aforementioned drive units includes a translation frame, a rotating frame, a rotating rod, and a transmission device; The rotating frame is rotatably mounted on the mounting frame; the rotating frame is provided with a slide rail, the slide rail including a retracting section and a positioning section; the retracting section extends in the front-back direction, the front end of the positioning section is connected to the rear end of the retracting section, and the positioning section is inclined relative to the retracting section; The translation frame is movably mounted on the rotating frame; The rotating rod includes a vertically extending rotating rod, a horizontally arranged connecting rod, and a vertically extending sliding rod. The sliding rod is inserted into the slide rail and slides and rotates within the slide rail. The connecting rod connects the upper end of the sliding rod and the lower end of the rotating rod. The rotating rod is rotatably mounted on the translation frame. The transmission device includes a bracket mounted on the mounting frame and a sliding connecting rod; the rotating frame has an arc surface coaxial with its rotation axis, and two symmetrically arranged sliding grooves are provided on the arc surface, the front ends of the two sliding grooves intersect, one end of the sliding connecting rod is inserted into the sliding groove, the sliding connecting rod is movably mounted on the bracket, and the sliding connecting rod is movably mounted on the translation frame along the circumference of the arc surface; the rotation axis of the rotating frame is the axis of the arc surface.

3. The fan wall according to claim 2, characterized in that, The rotating frame includes: A horizontal support plate is provided on the upper or lower side of the air duct, and the slide rail is provided on the horizontal support plate; An arc-shaped semi-tube is disposed on one side of the air duct and arches towards the air duct; two sliding grooves are disposed on the arc-shaped semi-tube; A connecting frame is disposed between the arc-shaped half-tube and the horizontal support plate.

4. The fan wall according to claim 3, characterized in that, The radii of the two arc-shaped half-pipes corresponding to each air supply duct group are not equal, and the two arc-shaped half-pipes are arranged coaxially.

5. The fan wall according to claim 2, characterized in that, The outlet of each duct is located in front of the outlet of the axial flow fan or between the outlet and the inlet of the axial flow fan; air is supplied to the duct using at least one centrifugal fan, which is mounted on the mounting frame and located outside all the axial flow fans.

6. The fan wall according to claim 5, characterized in that, The inlets of the two ducts in each of the aforementioned air supply duct groups are connected to the outlet of a main air duct via an air distribution structure; the air distribution structure includes: A main connector, which is a square tube, is connected to the main air duct; Two branch connectors are formed on the main connector and are respectively connected to the main connector and the two air ducts; the two branch connectors are spaced apart. The air distribution assembly includes two vertically arranged telescopic plates and a vertically arranged partition plate. The front ends of the two telescopic plates are rotatably mounted on the rear ends of two adjacent side walls of the two branch joints, and the rear ends of the two telescopic plates are rotatably connected. The partition plate is movably installed in the main joint in the lateral direction, and the front end of the partition plate is rotatably connected to the rear ends of the two telescopic plates.

7. The fan wall according to claim 6, characterized in that, Each of the two sliding connecting rods corresponding to each air supply duct assembly is equipped with a rack. The bracket is provided with gears that mesh with the two racks. The gears are configured to slide in the front-back direction and rotate about their own central axis. A first rotating shaft is rotatably mounted on one side of the gear, and a second rotating shaft is rotatably mounted on the partition plate; a rocker arm is slidably connected to the first rotating shaft, and the rocker arm is rotatably connected to the bracket at a distance away from the first rotating shaft, and the end of the rocker arm away from the first rotating shaft is slidably connected to the second rotating shaft.

8. The fan wall according to claim 6, characterized in that, The centrifugal fan is a double-suction centrifugal fan, and each centrifugal fan outlet is provided with at least one baffle so that the outlet of the centrifugal fan has at least two sub-air outlets, and each sub-air outlet is connected to one of the main air ducts.

9. The fan wall according to claim 1, characterized in that, It also includes multiple fault detection devices. Each of the fault detection devices is used to detect whether one of the axial flow fans has stopped, so that when the axial flow fan stops, the corresponding duct is moved to the rear side of the axial flow fan by the corresponding drive device.

10. The fan wall according to claim 3, characterized in that, The duct includes a rigid pipe and a flexible hose fitted onto the front end of the rigid pipe, with the opening of the flexible hose serving as the outlet of the duct.

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