A cambered surface air guide device suitable for precision air conditioning under air supply

Abstract

The application discloses an arc surface air guide device suitable for precision air conditioner lower air supply and relates to the technical field of heating, ventilation and air conditioning. The arc surface air guide device comprises a vertical fan, a ring-shaped shell, a dynamic conical body mechanism and a ring-shaped air outlet. The ring-shaped shell is vertically connected to the lower end of the air outlet of the vertical fan. The dynamic conical body mechanism is coaxially arranged at the center of the ring-shaped shell and is surrounded by a plurality of longitudinal arc blades. The ring-shaped air outlet is formed between the inner wall of the ring-shaped shell and the outer edge of the arc blades. The ring-shaped air outlet is divided into independent air ducts in the same number as the arc blades. The axial displacement-curvature conversion mechanism is used to continuously and adaptively adjust the curvature of the air guide surface by moving the top slider along the fixed shaft and synchronously changing the inclination angle of the arc blades. The impact direction of the vertical airflow is fundamentally changed, the original disordered impact diffusion is converted into an orderly horizontal diffusion flow, the turbulence intensity and vortex scale in the static pressure tank are significantly reduced, kinetic energy loss is avoided, and airflow organization efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heating, ventilation and air conditioning technology, more particularly, it relates to an arc surface air guide device suitable for precision air conditioning down air supply. BACKGROUND

[0002] The air flow organization design of high and large space building has always been a technical difficulty in the field of heating, ventilation and air conditioning. In order to meet the temperature control requirements of such space, the precision air supply technology scheme mainly used in engineering practice, such as vertical down air supply system, vertically downward transports cold air into space through roof air duct, but in actual application, when the cold air vertically falls from the outlet of the air tank, it is easy to form "air flow impact", which causes uneven pressure distribution in the static pressure tank. Research shows that, especially in the scene of data center, server room and other places that require high precision temperature control, it is widely used because it is convenient to integrate with elevated floor static pressure tank. However, the physical limitation of this technology leads to significant defects in energy efficiency and air flow organization:

[0003] Firstly, when the high-speed airflow vertically impacts the bottom plate of the static pressure tank from the outlet of the air tank, it will cause turbulent effect similar to fluid impact on solid wall, that is, radial splashing turbulence similar to water flow impact on ground, which causes the direction of airflow to be disordered and produces strong vortex. This disordered flow not only causes a large amount of kinetic energy loss, but also causes serious imbalance of pressure distribution inside the static pressure tank.

[0004] The direct consequence of airflow turbulence is that the air outlet of the ventilation floor is significantly uneven, forming a local overheating area in the equipment intensive area. In order to compensate for the loss of air pressure, the fan is forced to continuously increase the power to run, which not only increases energy consumption but also accelerates equipment wear and tear; at the same time, the wideband noise and structure vibration induced by turbulence pose a potential threat to the operation environment of precision equipment.

[0005] The industry has tried to use fixed guide plates or variable air volume adjustment to improve air flow organization, but the fixed structure cannot adapt to dynamic working condition changes, and simply reducing the air speed leads to insufficient air supply at the far end. The existing technology has always failed to effectively solve the core problems of vertical impact energy conversion, real-time pressure balance and system adaptive adjustment, especially lacking an optimal solution to realize efficient kinetic energy conversion in the limited space of static pressure tank. This technical bottleneck is particularly prominent in high-precision temperature control scenarios, and a new type of air guide device that can fundamentally reconstruct the air flow organization mode is urgently needed. SUMMARY

[0006] To solve the above problems, the present application realizes the curvature adaptive adjustment of the arc-shaped guide plate through the dynamic conical body mechanism, converts the vertical impact energy into horizontal diffusion energy, and reduces the turbulent loss; through the partition of annular air port, the difference of air outlet of each ventilation floor is ensured, the hot spot is eliminated, and the air volume is accurately distributed.

[0007] To achieve the above object, the application provides the following technical scheme: an arc surface air guide device suitable for precision air conditioner lower air supply, comprising: a vertical fan, and a ring-shaped shell, which is vertically connected to the lower end of the air outlet of the vertical fan;

[0008] A dynamic cone mechanism is coaxially arranged in the center of the ring-shaped shell and is surrounded by a plurality of longitudinal arc-shaped blades;

[0009] A ring-shaped air outlet is formed between the inner wall of the ring-shaped shell and the outer edge of the arc-shaped blades, and the ring-shaped air outlet is divided into independent air ducts in the same number as the arc-shaped blades;

[0010] An arc adjustment mechanism comprises a radial sliding groove arranged at the bottom of the dynamic cone mechanism and a linkage assembly, which drives all the lower ends of the arc-shaped blades to synchronously slide radially to change the curvature;

[0011] A wind volume adjustment mechanism comprises radial adjustment pieces arranged at the outlets of each independent air duct, and each radial adjustment piece can independently move radially to adjust the opening degree of the air duct;

[0012] A wind direction adjustment mechanism comprises guide vanes arranged at the ring-shaped air outlet, which is used for adjusting the wind direction by controlling the rotation of the guide vanes.

[0013] The vertical downward air flow is converted into a horizontal diffusion flow, and the air flow organization is cooperatively controlled by three independent adjustment mechanisms of arc, wind volume and wind direction, so that the turbulence in the static pressure tank is eliminated.

[0014] Preferably, the dynamic cone mechanism comprises:

[0015] A bottom disc is coaxially fixed to the lower end surface of the ring-shaped shell;

[0016] A fixed shaft is vertically arranged at the center of the bottom disc;

[0017] A top slider is sleeved on the upper end of the fixed shaft and can slide axially;

[0018] The upper end of the arc-shaped blade is connected to the top slider through a spherical hinge joint;

[0019] When the top slider moves axially along the fixed shaft, all the arc-shaped blades are driven to synchronously change the inclination angle, so that the radius of curvature of the cone continuously changes; the axial displacement is converted into the curvature change, so that the mechanical movement is converted into the fluid guide surface optimization, and the air flow diffusion demand under different wind speeds is met.

[0020] Preferably, the arc adjustment mechanism comprises:

[0021] The radial sliding groove is arranged on the bottom disc and the same as the center of the circle, the linkage assembly includes a driving rod slidingly arranged in the radial sliding groove, the driving rod is provided with an arc bottom plate at the end away from the shaft center, and the lower end of the arc-shaped blade is hinged to the upper end of the arc bottom plate; the driving rod is provided with a limiting rod at the end close to the shaft center, the fixed shaft is also provided with a driving gear ring one outside the shaft center, the driving gear ring one is provided with an arc-shaped groove corresponding to the number of the driving rod, the limiting rod is arranged in the arc-shaped groove, and the bottom disc is provided with a motor one, the output end of the motor one is provided with a driving gear one, and the driving gear one is in mesh with the gear on the outer edge of the driving gear ring one.

[0022] The radial displacement of the driving rod is converted from the rotating motion of the gear ring, the non-linear transmission is realized through the geometric constraint of the limiting rod and the arc-shaped groove, and the change rate of the curvature of the blade is accurately controlled.

[0023] Preferably, the arc-shaped blade comprises:

[0024] The main blade body is provided with a telescopic cavity on one side;

[0025] The telescopic auxiliary blade is embedded in the telescopic cavity and has the same curvature as the main blade body;

[0026] A plurality of compression springs are arranged in the telescopic cavity, one end of each compression spring is connected to the side wall of the telescopic cavity, and the other end is connected to the side wall of the telescopic blade.

[0027] When the driving rod drives the arc bottom plate to move radially, the curvature of the main blade changes, the gap between the main blades changes, the auxiliary blade is pushed in the telescopic cavity by the compression spring, the effective area of the blade is dynamically adjusted, the air flow resistance is adjusted, and the flow guiding capacity is enhanced.

[0028] Preferably, the air volume adjusting mechanism comprises:

[0029] The radial adjusting piece is vertically slidingly arranged above the independent air duct;

[0030] The gear plate is fixedly connected above the radial adjusting piece;

[0031] The connecting rod is vertically arranged above the independent air duct, one end of the connecting rod is connected to the top end of the independent air duct, and the other end of the connecting rod is connected with the motor two;

[0032] The driving gear two is arranged at the output end of the motor two and is in mesh connection with the gear plate.

[0033] The rotating motion of the motor is converted into the vertical displacement of the adjusting piece through the gear-tooth plate transmission, each air duct opening is independently controlled, and the local air volume is accurately distributed.

[0034] Preferably, the air direction adjusting mechanism comprises:

[0035] Several groups of guide vanes are rotatably arranged in the upper and lower end side walls of the independent air ducts and arranged in a circular ring shape; the guide vanes can rotate by 360 degrees, and the surface is provided with guide ribs.

[0036] The driving gear three is coaxially arranged at one end of the several groups of guide vanes;

[0037] The driving gear ring two is coaxially arranged at the bottom end of the bottom disc, and the outer edge thereof is in gear engagement with the several groups of driving gear three;

[0038] The driving motor three is fixedly arranged in the mounting groove at the bottom end of the bottom disc, and the output end thereof is in transmission connection with the shaft of the driving gear ring two.

[0039] The single motor driving gear ring is used for synchronously controlling the rotation angles of all the guide vanes, adjusting and optimizing the airflow direction, and eliminating the vortex.

[0040] Preferably, the radial adjusting piece is an arc-shaped metal piece, and the bottom edge thereof is provided with a sealing rubber strip; the sealing rubber strip is used for maintaining the air tightness of the air duct edge when the adjusting piece moves, so that the air leakage is prevented, and the wind pressure loss is avoided.

[0041] Preferably, the number of the radial sliding grooves is the same as that of the arc-shaped vanes, so that each vane corresponds to an independent adjusting unit, the synchronism and uniformity of the curvature change are realized, the three parameters of the curvature, the air volume and the airflow direction are adjusted through the wind pressure distribution, the hot spots are eliminated, and the energy consumption of the fan is reduced.

[0042] Compared with the prior art, the present application has the following beneficial effects:

[0043] 1. In the present application, the dynamic conical body mechanism and the curvature adjusting mechanism are arranged, the axial displacement-curvature conversion mechanism that the top slider is moved along the fixed shaft to drive the inclination of the arc-shaped vane to be synchronously changed is utilized, the continuous self-adaptive adjustment of the guide curve curvature is realized, the impact direction of the vertical airflow is fundamentally changed, the originally disordered impact diffusion is converted into the ordered horizontal diffusion flow, the turbulence intensity and the vortex size in the static pressure box are significantly reduced, the kinetic energy loss is avoided, and the airflow organization efficiency is improved.

[0044] 2. In the present application, the annular air port partition and the independent air volume adjusting mechanism are arranged, each air duct is provided with an independently controlled radial adjusting piece, the vertical displacement is realized through the gear-toothed plate transmission, and the local opening degree is accurately adjusted; the air volume difference of the ventilation floor caused by the uneven wind pressure distribution is eliminated, the local hot spot problem of the equipment dense area is solved; the static pressure box is balanced in the whole 360 degrees, the air volume size deviation of each air outlet can be individually controlled, the size of the air outlet of each independent air duct can be controlled, the overall air outlet direction and size of the annular air outlet can be controlled, and the safe operation of the high-heat equipment is ensured.

[0045] 3、The 360° adjustable air direction mechanism is set, single motor is used for driving gear ring to synchronously control all guide vanes, torque is transmitted through planetary gear set, air direction is adjusted, secondary vortex generated by air flow turning in the traditional scheme is eliminated, air flow cross interference is avoided, stable laminar diffusion is formed, wideband noise is reduced, and the threat of vibration to precision equipment is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0046] The drawings described herein are intended to provide further understanding of the present application, form a part of the application, and the illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0047] Figure 1 is a schematic diagram of the overall structure of the present application;

[0048] Figure 2 is a top view of the present application;

[0049] Figure 3 is a schematic diagram of the connection relationship between the annular air port and the independent air duct of the present application;

[0050] Figure 4 is a sectional view of the dynamic conical body mechanism of the present application;

[0051] Figure 5 is a schematic diagram of the mounting structure of the dynamic conical body mechanism of the present application;

[0052] Figure 6 is a schematic diagram of the mounting structure of the linkage assembly of the present application;

[0053] Figure 7 is a sectional view of the arc-shaped vane in the present application.

[0054] 1, vertical fan; 2, annular shell; 201, bottom disc; 202, fixed shaft; 203, top slider; 21, arc-shaped vane; 211, main vane body; 212, telescopic cavity; 213, telescopic secondary vane; 214, compression spring; 3, annular air port; 4, independent air duct; 51, radial sliding groove; 52, linkage assembly; 521, drive rod; 522, circular arc bottom plate; 523, limiting rod; 524, drive gear ring one; 525, arc-shaped groove; 526, motor one; 527, drive gear one; 61, radial adjusting piece; 62, gear plate; 63, connecting rod; 64, motor two; 65, drive gear two; 71, guide vane; 72, drive gear three; 73, drive gear ring two; 74, drive motor three. DETAILED DESCRIPTION

[0055] As Figure 1 - Figure 7As shown, the present application provides an arc surface air guide device suitable for precision air conditioning down air supply, comprising: a vertical fan 1, and

[0056] A ring-shaped housing 2 is vertically connected to the lower end of the air outlet of the vertical fan 1;

[0057] A dynamic cone mechanism is coaxially arranged at the center of the ring-shaped housing 2 and is surrounded by a plurality of longitudinal arc-shaped blades 21;

[0058] A ring-shaped air outlet 3 is formed between the inner wall of the ring-shaped housing 2 and the outer edge of the arc-shaped blades 21, and the ring-shaped air outlet 3 is divided into independent air channels 4 which are the same as the number of arc-shaped blades 21;

[0059] An arc adjustment mechanism includes a radial sliding groove 51 arranged at the bottom of the dynamic cone mechanism and a linkage assembly 52, which drives all the lower ends of the arc-shaped blades 21 to move radially synchronously to change the curvature;

[0060] A wind volume adjustment mechanism includes a radial adjustment piece 61 arranged at the outlet of each independent air channel 4, and each radial adjustment piece 61 can move radially independently to adjust the opening degree of the air channel;

[0061] A wind direction adjustment mechanism includes a guide vane 71 arranged at the ring-shaped air outlet 3, which is used to adjust the wind direction by controlling the rotation of the guide vane 71.

[0062] In this embodiment, through the coordinated flow guiding of the vertical fan 1 and the ring-shaped housing 2, the high-speed cold air generated by the vertical fan 1 is vertically downwardly delivered and forms a directional flow channel by being constrained by the ring-shaped housing 2; the cylindrical structure of the ring-shaped housing 2 prevents the airflow from diffusing too early, ensuring that the airflow concentrates to impact the dynamic cone mechanism and avoiding energy dissipation during the delivery process; then the airflow reconstruction of the dynamic cone mechanism, when the high-speed airflow impacts the curved surface of the arc-shaped blades 21: the kinetic energy of the airflow is decomposed into normal force and tangential force, the normal force is absorbed by the blade, and the tangential force is converted into horizontal momentum; the arc-shaped blades 21 convert the vertical impact energy into radial diffusion energy, which is similar to the fluid mechanics effect of the gentle spread of water flow after impacting the arc-shaped rock of a waterfall; by changing the curvature of the arc-shaped blades 21, i.e., the arc adjustment dynamically optimizes the diffusion angle of the airflow, matching different wind speed requirements;

[0063] Then through the zoning control mechanism of the ring-shaped air outlet 3, the ring-shaped space formed by the inner wall of the ring-shaped housing 2 and the outer edge of the arc-shaped blades 21 is divided into independent air channels 4, and each independent air channel 4 corresponds to a specific area of the static pressure box, such as a single cabinet column, laying the foundation for precise regulation and control; in this embodiment, six independent air channels 4 are arranged, matching the six arc-shaped blades 21 to form a hexagonal honeycomb flow field, optimizing the uniformity of airflow distribution.

[0064] Further in this embodiment, the dynamic cone mechanism comprises:

[0065] A bottom disc 201 is coaxially fixed to the lower end surface of the annular shell 2;

[0066] A fixed shaft 202 is vertically arranged at the center of the bottom disc 201, and the axial height H of the fixed shaft 202 is between 0.5 and 0.8 times the diameter D of the annular shell 2;

[0067] A top slider 203 is sleeved on the upper end of the fixed shaft 202 and can slide along the axial direction;

[0068] The upper end of the arc-shaped blade 21 is connected to the top slider 203 through a spherical hinge joint;

[0069] When the top slider 203 moves along the axial direction of the fixed shaft 202, all the arc-shaped blades 21 are driven to change the inclination angle synchronously, so that the radius of curvature of the conical body continuously changes;

[0070] The arc adjustment mechanism comprises:

[0071] A radial sliding groove 51 is arranged on the bottom disc 201 and is concentric with the center, the number of the radial sliding grooves 51 is the same as the number of the arc-shaped blades 21, the linkage assembly 52 comprises a driving rod 521 slidingly arranged in the radial sliding groove 51, the driving rod 521 is provided with an arc bottom plate 522 at the end away from the center, and the lower end of the arc-shaped blade 21 is hingedly connected to the upper end of the arc bottom plate 522;

[0072] The end of the driving rod 521 close to the center is provided with a limiting rod 523, the fixed shaft 202 is further provided with a driving gear ring one 524 outside the center, the driving gear ring one 524 is provided with arc-shaped grooves 525 corresponding to the number of the driving rods 521, the limiting rod 523 is arranged in the arc-shaped grooves 525, and the bottom disc 201 is provided with a motor one 526, the output end of the motor one 526 is provided with a driving gear one 527, and the driving gear one 527 is in mesh with the gear on the outer edge of the driving gear ring one 524.

[0073] The arc-shaped blade 21 comprises:

[0074] A main blade body 211 is provided with an expansion cavity 212 on one side;

[0075] An expansion auxiliary blade 213 is embedded in the expansion cavity 212 and has the same curvature as the main blade body 211;

[0076] A plurality of compression springs 214 are arranged in the expansion cavity 212, one end of each compression spring 214 is connected to the side wall of the expansion cavity 212, and the other end is connected to the side wall of the expansion auxiliary blade.

[0077] Firstly, in this embodiment, when the top slider 203 moves along the fixed shaft 202, all the upper ends of the arc-shaped blades 21 are moved synchronously through the ball hinge, and since the lower ends of the blades are hinged to the radially slidable circular arc bottom plate 522, the inclination angle of the arc-shaped blades 21 will continuously change. This design converts the axial displacement into the curvature change of the curved surface, which is more flexible than the traditional fixed guide vane. The synchronous change of the inclination angle of the arc-shaped blades 21 realizes the continuous adjustment of the curvature, which is suitable for different wind speed conditions. The working principle of the curvature self-adaptive adjustment of the dynamic cone mechanism is as follows:

[0078] When the driving motor one 526 starts, the driving gear one 527 meshes with the driving gear ring one 524 to rotate, the limiting rod 523 moves along the arc-shaped slot 525 to push the driving rod 521 to displace radially, which drives the circular arc bottom plate 522 to move to make the lower end of the arc-shaped blade 21 slide, thereby realizing the non-linear and accurate adjustment of the curvature.

[0079] At the same time, the axial movement of the top slider 203 changes the inclination angle of the arc-shaped blades 21 synchronously. When the top slider 203 moves axially along the fixed shaft 202, the upper ends of all the arc-shaped blades 21 are retracted inward when moving upward, the inclination angle of the arc-shaped blades 21 increases, the radius of curvature decreases, that is, the curved surface becomes steep; when moving downward, the lower ends of the arc-shaped blades 21 expand outward, the inclination angle decreases, the radius of curvature increases, that is, the curved surface becomes gentle; which ensures the stable diffusion of the airflow along the curved surface.

[0080] When the driving rod 521 drives the circular arc bottom plate 522 to move radially, the curvature of the main blade body 211 changes, and the gap between the arc-shaped blades 21 changes. At this time, the compression spring 214 pushes the telescopic auxiliary blade 213 to expand and contract, which matches the gap size in real time, and forms a seamless curved surface for guiding airflow.

[0081] Further, in this embodiment, the air volume adjusting mechanism comprises:

[0082] The radial adjusting piece 61 is vertically slidably arranged above the independent air duct 4. The radial adjusting piece 61 is an arc-shaped metal piece, and a sealing rubber strip is arranged at the bottom edge of the radial adjusting piece 61.

[0083] The gear plate 62 is fixedly connected above the radial adjusting piece 61.

[0084] The connecting rod 63 is vertically arranged above the independent air duct 4, one end of the connecting rod 63 is connected to the top end of the independent air duct 4, and the other end of the connecting rod 63 is connected with the motor two 64.

[0085] The driving gear two 65 is arranged at the output end of the motor two 64 and is in meshing connection with the gear plate 62.

[0086] In this embodiment, the radial adjusting piece 61 of each independent air duct 4 is vertically moved by the motor through the gear and rack drive. When the radial adjusting piece 61 moves downward, the opening degree is reduced, and when the radial adjusting piece 61 moves upward, the opening degree is increased, thereby realizing the accurate control of the local air volume. The specific working of the air volume adjusting mechanism is as follows:

[0087] The motor two 64 drives the driving gear two 65 to rotate, the driving gear two 65 is engaged with the gear plate 62, and the vertical linear motion of the gear plate 62 is converted into the rotation motion, the gear plate 62 is fixedly connected with the radial adjusting piece 61, so that the radial adjusting piece 61 moves up and down with the gear plate 62, and the sealing rubber strip at the bottom of the radial adjusting piece 61 ensures the sealing of the air duct edge during the movement, preventing air leakage, when the radial adjusting piece 61 moves upward, the air duct opening degree increases, and the air volume increases; when the radial adjusting piece 61 moves downward, the opening degree decreases, and the air volume decreases; each air duct is independently controlled to realize precise air distribution, and each air duct has a set of independent air volume adjusting mechanism, so that the air volume of each air duct can be adjusted independently, for example, when the adjustment range of the annular air port is 180°, the radial adjusting pieces 61 of three adjacent independent air ducts 4 can be controlled to be opened.

[0088] Further, the air direction adjusting mechanism comprises:

[0089] A plurality of groups of guide vanes 71 are rotatably arranged in the upper and lower sidewalls of the independent air duct 4, and are arranged in a circular ring shape;

[0090] The driving gear three 72 is coaxially arranged at one end of the plurality of groups of guide vanes 71;

[0091] The driving gear ring two 73 is coaxially arranged at the bottom end of the bottom disc 201, and the outer edge thereof is engaged with the plurality of groups of driving gear three 72;

[0092] The driving motor three 74 is fixedly arranged in the mounting groove at the bottom end of the bottom disc 201, and the output end thereof is in transmission connection with the shaft of the driving gear ring two 73.

[0093] In the embodiment, the single motor drives the gear ring to rotate all the guide vanes 71 synchronously, the guide ribs on the surface of the vanes optimize the flow distribution, further adjust the horizontal diffusion flow to directional laminar flow, and eliminate local vortex, specifically, the driving motor three 74 drives the driving gear ring two 73 to rotate, the gear ring is engaged with the plurality of driving gear three 72 at the same time, thereby synchronously controlling all the guide vanes 71 to rotate and uniformly adjusting the air direction.

[0094] Working principle:

[0095] The high-speed cold air flow generated by the vertical fan 1 is restricted by the annular shell 2 to form a directional flow channel, avoiding early diffusion of the airflow and ensuring concentrated impact on the dynamic conical body mechanism. When the airflow impacts the curved surface of the arc-shaped blade 21, the kinetic energy is decomposed into normal force and tangential force: the normal force is absorbed by the blade and buffered by the extension and contraction auxiliary blade 213, and the tangential force is converted into horizontal momentum, similar to the effect of the fluid gently spreading after impacting the arc-shaped rock like a waterfall. At this time, the top slider 203 moves axially along the fixed shaft 202, driving the synchronous movement of the upper ends of all arc-shaped blades 21 through the spherical hinge joint: when moving upwards, the inclination angle of the blade increases and the radius of curvature decreases to form a steep guide surface; when moving downwards, the inclination angle decreases and the radius of curvature increases to form a flat diffusion surface. When the driving motor one 526 starts, the driving gear one 527 meshes with the driving gear ring one 524 to rotate, the limiting rod 523 moves along the arc-shaped groove 525 to push the driving rod 521 to displace radially, driving the circular arc bottom plate 522 to move and make the lower end of the blade slide, realizing precise nonlinear adjustment of the curvature. When the gap between the main blade body 211 changes due to the change of curvature, the compression spring 214 pushes the extension and contraction auxiliary blade 213 to extend and contract in real time to fill the gap and maintain a seamless guide surface.

[0096] In the embodiment, the annular space of the annular air port 3 is divided into six independent air channels 4 to form a hexagonal honeycomb flow field, and each air channel is provided with an independent air volume adjusting mechanism: the motor two 64 drives the driving gear two 65 to rotate, meshes with the gear plate 62 to drive the radial adjusting piece 61 to move vertically - when moving upwards, the opening increases to increase the air volume, and when moving downwards, the opening decreases to reduce the air volume. The bottom sealing rubber strip always adheres to the edge of the air channel during movement to prevent leakage; at the same time, the driving motor three 74 drives the driving gear ring two 73 to rotate, synchronously meshes with all driving gears three 72, and makes the annularly arranged guide vanes 71 rotate synchronously, converting the horizontally diffused flow into directional laminar flow.

[0097] The present application cooperatively controls airflow organization through three independent adjusting mechanisms of arc, air volume and wind direction, eliminates turbulence in the static pressure tank, breaks the bottleneck of insufficient adaptability of single adjusting mechanism under dynamic working conditions, responds to sudden changes in wind speed and fluctuations in heat load, reduces energy consumption and operation and maintenance cost of the fan, prolongs the service life of the equipment, and realizes the triple gain of energy saving, reliability and economy; for example, when local overheating is detected, the three mechanisms respond in linkage: increasing the opening of the target area air channel, adjusting the curvature to enhance diffusion, and rotating the guide vanes to direct the air supply, which can quickly eliminate the temperature difference.

[0098] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form; any person skilled in the art can easily implement the present application according to the drawings and the above description; however, any person skilled in the art can make some changes, modifications and equivalent changes of the above disclosed technical contents without departing from the technical solution of the present application, and the equivalent embodiments of the present application are still within the protection scope of the present application.

Claims

1. An arc surface air guide device suitable for precision air conditioning, comprising a vertical fan (1), characterized in that: a ring-shaped shell is vertically connected to the lower end of the air outlet of the vertical fan (1); a dynamic cone mechanism is coaxially arranged in the center of the ring-shaped shell (2) and surrounded by a plurality of longitudinal arc-shaped blades (21); a ring-shaped air outlet (3) is formed between the inner wall of the ring-shaped shell (2) and the outer edge of the arc-shaped blades (21), and the ring-shaped air outlet (3) is divided into independent air channels (4) with the same number as the arc-shaped blades (21); an arc adjustment mechanism includes a radial sliding groove (51) arranged at the bottom of the dynamic cone mechanism and a linkage assembly (52), which drives all the lower ends of the arc-shaped blades (21) to move radially synchronously to change the curvature; a wind volume adjustment mechanism includes radial adjustment pieces (61) arranged at the outlets of each independent air channel (4), each of which can move radially to adjust the opening degree of the air channel; a wind direction adjustment mechanism includes guide vanes (71) arranged at the ring-shaped air outlet (3) to adjust the wind direction by controlling the rotation of the guide vanes (71); the dynamic cone mechanism includes: a bottom disc (201) coaxially fixed to the lower end surface of the ring-shaped shell (2); a fixed shaft (202) vertically arranged at the center of the bottom disc (201); a top slider (203) sleeved on the upper end of the fixed shaft (202) and axially slidable; the upper end of the arc-shaped blade (21) is connected to the top slider (203) through a ball hinge joint; when the top slider (203) moves axially along the fixed shaft (202), it drives all the arc-shaped blades (21) to change the inclination angle synchronously; the arc adjustment mechanism includes a radial sliding groove (51) arranged on the bottom disc (201) with the same center, and the linkage assembly (52) includes a drive rod (521) slidingly arranged in the radial sliding groove (51), one end of the drive rod (521) away from the shaft center is provided with a circular arc bottom plate (522), and the lower end of the arc-shaped blade (21) is hinged to the upper end of the circular arc bottom plate (522); a limiting rod (523) is arranged on the end of the drive rod (521) close to the shaft center, a drive gear ring one (524) is further rotationally arranged outside the shaft center of the fixed shaft (202), the drive gear ring one (524) is provided with arc-shaped grooves (525) corresponding in number to the drive rod (521), the limiting rod (523) is arranged in the arc-shaped grooves (525), a motor one (526) is arranged on the bottom disc (201), an output end of the motor one (526) is provided with a drive gear one (527), and the drive gear one (527) is meshed with the edge gear outside the drive gear ring one (524); the arc-shaped blade (21) includes: a main blade body (211) provided with an expansion cavity (212) on one side; an expansion auxiliary blade (213) embedded in the expansion cavity (212) and having the same curvature as the main blade body (211); and a plurality of compression springs (214) arranged in the expansion cavity (212), one end of each compression spring (214) is connected to the side wall of the expansion cavity (212), and the other end is connected to the side wall of the expansion blade; the wind volume adjustment mechanism includes: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The cambered air deflector device for use in precision air conditioning according to claim 1, characterized in that: ​ A radial adjusting piece (61) is vertically slidably arranged above the independent air duct (4); A gear plate (62) is fixedly connected above the radial adjusting piece (61); A connecting rod (63) is vertically arranged above the independent air duct (4), one end of which is connected to the top end of the independent air duct (4), and the other end is connected with a second motor (64); A second driving gear (65) is arranged at the output end of the second motor (64) and is in meshing connection with the gear plate (62).

3. The cambered air deflector device for use in precision air conditioning according to claim 1, characterized in that: The wind direction adjusting mechanism comprises: A plurality of groups of guide vanes (71) are rotatably arranged in the upper and lower side walls of the independent air duct (4) and are arranged in a circular ring shape; A third driving gear (72) is coaxially arranged at one end of the plurality of groups of guide vanes (71); A second driving gear ring (73) is coaxially arranged at the bottom end of the bottom disc (201), and the outer edge thereof is in gear meshing with the plurality of groups of third driving gears (72); A third driving motor (74) is fixedly arranged in the mounting groove at the bottom end of the bottom disc (201), and the output end thereof is in transmission connection with the shaft center of the second driving gear ring (73).

4. The cambered air deflector device for use in precision air conditioning according to claim 2, characterized in that: The radial adjusting piece (61) is an arc-shaped metal piece, and a sealing rubber strip is arranged at the bottom edge thereof.

5. The cambered air deflector device for use in precision air conditioning according to claim 1, characterized in that: The number of radial sliding grooves (51) is the same as the number of arc-shaped vanes (21).

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