Energy-saving air supply device

Abstract

This utility model relates to an energy-saving air supply device, belonging to the technical field of vortex ring air supply devices. Its structure is as follows: an electrical cylinder is located at the upper part of a main cylinder, and an air duct is located at the lower part of the electrical cylinder; a top cover is located at the top of the main cylinder; the electrical cylinder has an opening at the top, and an indexing drive device is located at the center of its inner cavity; an air supply hood is located on the outer periphery of the main cylinder, and the air source is connected to the air supply hood; three circumferentially distributed connecting pipes are provided between the electrical cylinder and the air duct; the lower end of the air duct is open and connected to the vortex ring nozzle; a slit plate of the same area is rotatably fitted near the upper surface of the air duct's inner cavity, the slit plate has a through hole, and a drive shaft is located at the center of the slit plate. The drive shaft passes sequentially through a first shaft hole located at the center of the air duct and a second shaft hole located at the center of the electrical cylinder, and connects to the indexing drive device inside the electrical cylinder. This air supply device uses three inlets for alternating air supply, ensuring uninterrupted airflow. The generated vortex ring has a regular shape and is not easily broken, resulting in a longer air supply distance, a larger coverage area, and significantly improved air supply efficiency.

Description

Technical Field

[0001] This utility model relates to an energy-saving air supply device, belonging to the technical field of vortex ring air supply devices. Background Technology

[0002] Vortex air supply devices are widely used in ventilation, air conditioning, fresh air, industrial air supply and HVAC systems due to their strong directionality, long air supply distance and slow airflow attenuation.

[0003] Existing vortex ring air supply devices mostly adopt a single-inlet or dual-inlet air supply structure. However, this method leads to poor air supply continuity and frequent interruptions in airflow, resulting in unstable vortex ring morphology that is prone to breakage, and limiting the air supply distance and coverage. At the same time, multi-channel air intakes lack independent cut-off and switching mechanisms, causing airflows to collide and become severely turbulent after entering the cylinder, which not only reduces air supply efficiency but also increases operating noise and energy consumption. In addition, if hot air is required, the existing devices heat the air for a short time after it enters the equipment. Without changing the heating power, the warm air is not warm enough. If strong warm air is required, a higher-power heating wire is needed to make the air warm when it is blown out, which leads to higher energy consumption. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an energy-saving air supply device. The air supply device adopts three inlets for alternating air supply, the air supply is uninterrupted, the generated vortex ring has a regular shape and is not easy to break, the air supply distance is longer and the coverage area is larger, and the air supply efficiency is significantly improved.

[0005] To solve the above problems, the specific technical solution of this utility model is as follows: An energy-saving air supply device is provided with an electrical cylinder near the upper part of the main cylinder, and an air duct is provided below the electrical cylinder. A top cover is provided on the top of the main cylinder. The electrical cylinder is open at the top, and an indexing drive device is provided at the center of its inner cavity. An air supply hood is provided on the outer periphery of the main cylinder, and the air source is connected to the air supply hood. Three circumferentially distributed connecting pipes are provided between the electrical cylinder and the air duct. One end of the three connecting pipes is connected to the inner cavity of the air supply hood, and the other end is connected to the lower inner cavity of the air duct through three first connecting holes provided on the top surface of the air duct. The lower end of the air duct is open and connected to the vortex ring nozzle. A slit plate of the same area is rotatably fitted near the upper top surface of the inner cavity of the air duct. The slit plate has a through hole, and a drive shaft is provided at the center of the slit plate. The drive shaft passes through the first shaft hole provided at the center of the air duct and the second shaft hole provided at the center of the electrical cylinder in sequence, and is connected to the indexing drive device inside the electrical cylinder.

[0006] The indexing drive device includes a stepper motor, a shift wheel, and a three-slot idler wheel. The shift wheel is connected to the output end of the stepper motor, and the three-slot idler wheel is fixedly connected to the top of the drive shaft. The three-slot idler wheel has three equally spaced grooves. A shift block is provided on the outer circumference of the shift wheel. During the rotation of the shift block, it engages with the grooves on the three-slot idler wheel.

[0007] The actuating wheel rotates one revolution, causing the three-slot idler wheel to rotate 120°, so that the through hole corresponds to one of the first connecting holes.

[0008] The air supply hood is a closed cavity with an air inlet at the top of one end, which is connected to the fan via an outer carrier plate. A second connection hole is provided at the bottom of the other end of the air supply hood cavity, which is connected to a connecting pipe. Several slots are provided between the air inlet and the second connection hole, and filter plates are inserted into the slots.

[0009] The number of air supply hoods is three, each having an arc-shaped inner cavity and connected to the outer circumference of the electrical cylinder.

[0010] The slot consists of an inlet, a stop bar, and a bottom groove. The inlets are located on the top surface of the air supply hood, and there are three inlets. The bottom groove is set on the bottom surface of the inner cavity of the air supply hood, and its position corresponds to the position of the inlet. A vertical stop bar is provided between the inlet and the bottom groove, and the stop bar is fixed on the arc-shaped inner wall of the inner cavity of the air supply hood. The three filter plates are inserted into the three inlets in sequence, and the side of the filter plate contacts and limits the stop bar. The bottom surface of the filter plate sits in the bottom groove.

[0011] The diameter of the filter screen on the filter plate decreases from the air inlet direction to the air outlet direction.

[0012] A lifting plate is provided between the electrical tube and the air tube. The top of the lifting plate is connected to the bottom surface of the electrical tube. There are three lifting plates, which are evenly distributed on the outer edge of the electrical tube. The lifting plates are circumferential and open on the outside. A connecting pipe is provided inside the lifting plate.

[0013] The air supply hood is equipped with an electric heating wire.

[0014] The energy-saving air supply device of this application adopts the above structure and has the following advantages: 1. Improved air supply continuity and stability: Three inlets provide alternating air supply, ensuring uninterrupted airflow. The generated vortex rings are regular in shape and not easily broken, resulting in a longer air supply distance, a larger coverage area, and significantly improved air supply efficiency. 2. Eliminate airflow interference and reduce noise and energy consumption: The cut-off plate enables independent single-channel conduction, avoiding turbulent flow from multiple airflows, reducing energy loss, lowering operating noise, and improving user comfort; 3. Stronger heating effect and more thorough heating: Without changing the power of the heating element, the air has a longer movement path and residence time inside the air supply hood. Compared with traditional air supply devices, the heat exchange time between the air and the heating wire is longer, the heat absorption is more thorough, the outlet air temperature is higher, and the heating effect is more significant. Attached Figure Description

[0015] Figure 1 This is the overall outline drawing of this application.

[0016] Figure 2 This is a cross-sectional view of the overall shape of the air supply hood.

[0017] Figure 3 This is a cross-sectional view of the overall structure of the electrical casing and the ventilation duct.

[0018] Figure 4 This is a schematic diagram of the indexing drive device.

[0019] Figure 5 This is a 3D diagram of an electric cylinder.

[0020] Figure 6 This is a 3D view of the ventilation duct.

[0021] Figure 7 This is a schematic diagram of the internal structure of the air supply hood.

[0022] In the diagram: 1-Main cylinder; 2-Air duct; 201-First shaft hole; 202-First connecting hole; 3-Vortex ring nozzle; 4-Electrical cylinder; 401-Second shaft hole; 402-Lifting plate; 5-Cut-off plate; 501-Through hole; 502-Drive shaft; 6-Three-slot idler wheel; 7-Stepper motor; 8-Actuating wheel; 9-Air supply hood; 901-Air inlet; 902-Second connecting hole; 903-Insert; 904-Blocking strip; 905-Bottom groove; 10-Outer carrier plate; 11-Fan; 12-Connecting pipe; 13-Filter plate; 14-Top cover. Detailed Implementation

[0023] like Figures 1 to 3 As shown, an energy-saving air supply device includes an electrical cylinder 4 located near the upper part of a main cylinder 1, with an air duct 2 located below the electrical cylinder 4, and a top cover 14 on the top of the main cylinder 1. The electrical cylinder 4 has an opening at the top and an indexing drive device at the center of its inner cavity. An air supply hood 9 is located on the outer periphery of the main cylinder 1, and the air source is connected to the air supply hood 9. Three circumferentially distributed connecting pipes 12 are provided between the electrical cylinder 4 and the air duct 2. One end of each connecting pipe 12 communicates with the inner cavity of the air supply hood 9, and the other end communicates with the lower inner cavity of the air duct 2 through three first connecting holes 202 provided on the top surface of the air duct 2. Figure 6 As shown; the lower end of the air duct 2 is open and connected to the vortex ring nozzle 3; a cut-off plate 5 of the same area is rotated and fitted near the upper top surface of the inner cavity of the air duct 2. The cut-off plate 5 is provided with a through hole 501. A drive shaft 502 is provided at the center of the cut-off plate 5. The drive shaft 502 passes through the first shaft hole 201 provided at the center of the air duct 2 and the second shaft hole 401 provided at the center of the electrical cylinder 4 in sequence, and is connected to the indexing drive device inside the electrical cylinder 4.

[0024] like Figure 4As shown, the indexing drive device includes a stepper motor 7, a dial wheel 8, and a three-slot idler wheel 6. The dial wheel 8 is connected to the output end of the stepper motor 7. The three-slot idler wheel 6 is fixedly connected to the top of the drive shaft 502. Three equally spaced grooves are provided on the three-slot idler wheel 6. A dial block is provided on the outer circumference of the dial wheel 8. During the rotation of the dial block, it engages with the grooves on the three-slot idler wheel 6.

[0025] The actuating wheel 8 rotates one revolution, driving the three-slot idler wheel 6 to rotate 120°, so that the through hole 501 corresponds to one of the first connecting holes 202.

[0026] like Figure 7 As shown, there are three air supply hoods 9, each with an arc-shaped inner cavity and connected to the outer circumference of the electrical cylinder 4. The air supply hood 9 is a closed cavity, with an air inlet 901 at the top of one end of the cavity, which is connected to the fan 11 via an outer carrier plate 10; a second connecting hole 902 is provided at the bottom of the other end of the air supply hood 9 cavity, which communicates with the connecting pipe 12; several slots are provided between the air inlet 901 and the second connecting hole 902, and filter plates 13 are inserted into the slots. The slot consists of an insertion port 903, a stop bar 904, and a bottom groove 905. The insertion ports 903 are located on the top surface of the air supply hood 9, and there are three of them. The bottom groove 905 is set on the bottom surface of the inner cavity of the air supply hood 9, and its position corresponds to the position of the insertion port 903. A vertical stop bar 904 is provided between the insertion port 903 and the bottom groove 905. The stop bar 904 is fixed on the arc-shaped inner wall of the inner cavity of the air supply hood 9. The three filter plates 13 are inserted into the three insertion ports 903 in sequence. The side of the filter plate 13 contacts and limits the stop bar 904. The bottom surface of the filter plate 13 sits in the bottom groove 905.

[0027] The diameter of the filter screen of the filter plate 13 decreases from the air inlet direction to the air outlet direction, thereby achieving step-by-step purification of the gas.

[0028] like Figure 4 As shown, a lifting plate 402 is provided between the electrical cylinder 4 and the air duct 2. The top of the lifting plate 402 is connected to the bottom surface of the electrical cylinder 4. There are three lifting plates 402, which are evenly distributed on the outer edge of the electrical cylinder 4. The lifting plate 402 is circumferential and open on the outside. A connecting pipe 12 is provided inside the lifting plate 402.

[0029] The working process of the energy-saving air supply device in this application is as follows: Air intake and filtration stage: Three fans 11 start simultaneously. Outside air enters the inner cavity through the air intake 901 of the air supply hood 9. The air passes through the detachable filter plate 13 to complete filtration and remove dust and impurities.

[0030] Air delivery stage: The filtered air enters the connecting pipe 12 through the second connecting hole 902 of the air supply hood 9, passes through the main cylinder 1, and enters the interior of the air duct 2 through the first connecting hole 202 at the top of the air duct 2, providing an air source for the generation of the vortex ring.

[0031] Airflow distribution and cutoff stage: The stepper motor 7 inside the electrical cylinder 4 starts, driving the actuating wheel 8 to rotate. The actuating wheel 8 drives the three-slot idler wheel 6 to rotate precisely 120° each time. The drive shaft 502 rotates synchronously with the idler wheel, driving the cutoff plate 5 to rotate on the top wall inside the air duct 2. The through holes 501 on the cutoff plate 5 are sequentially aligned with and staggered with the three first connecting holes 202, realizing the periodic alternating conduction and cutoff of the three airflows, avoiding mutual interference of airflows.

[0032] Vortex generation and air delivery stage: The distributed stable airflow converges in the air duct 2 and is ejected at high speed from the vortex nozzle 3 at the bottom, forming a stable vortex airflow with a long propagation distance, thus completing directional air delivery; if the heating wire is turned on, the air will be heated and delivered as warm air.

[0033] During the cyclic operation phase, the stepper motor 7 continuously drives the air intake channel, the cut-off plate 5 cycles through switching the air intake channel, and the three air supply hoods 9 alternately and stably supply air to ensure continuous and uniform air supply from the vortex ring.

[0034] The above are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent changes made in accordance with the claims of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An energy-saving air supply device, characterized in that: An electrical cylinder (4) is located near the upper part inside the main cylinder (1), and a wind duct (2) is located below the electrical cylinder (4). A top cover (14) is located on the top of the main cylinder (1). The electrical cylinder (4) has an opening at the top and an indexing drive device is located at the center of its inner cavity. An air supply hood (9) is located on the outer periphery of the main cylinder (1), and the air source is connected to the air supply hood (9). Three circumferentially distributed connecting pipes (12) are provided between the electrical cylinder (4) and the wind duct (2). One end of the three connecting pipes (12) is connected to the inner cavity of the air supply hood (9), and the other end is connected to three first connecting pipes set on the top surface of the wind duct (2). The connecting hole (202) communicates with the inner cavity of the lower end of the air duct (2); the lower end of the air duct (2) is open and connected to the vortex ring nozzle (3); a cut plate (5) of the same area is rotated and fitted near the upper top surface of the inner cavity of the air duct (2). The cut plate (5) is provided with a through hole (501). A drive shaft (502) is provided at the center of the cut plate (5). The drive shaft (502) passes through the first shaft hole (201) provided at the center of the air duct (2) and the second shaft hole (401) provided at the center of the electric cylinder (4) in sequence, and is connected to the indexing drive device inside the electric cylinder (4).

2. The energy-saving air supply device according to claim 1, characterized in that: The indexing drive device includes a stepper motor (7), a dial wheel (8), and a three-slot idler wheel (6). The dial wheel (8) is connected to the output end of the stepper motor (7). The three-slot idler wheel (6) is fixedly connected to the top of the drive shaft (502). Three equally spaced grooves are provided on the three-slot idler wheel (6). A dial block is provided on the outer circumference of the dial wheel (8). During the rotation of the dial block, it engages with the grooves on the three-slot idler wheel (6).

3. The energy-saving air supply device according to claim 2, characterized in that: The actuating wheel (8) rotates one revolution, driving the three-slot idler wheel (6) to rotate 120°, so that the through hole (501) corresponds to one of the first connecting holes (202).

4. The energy-saving air supply device according to claim 1, characterized in that: The air supply hood (9) is a closed cavity. The upper part of one end of the cavity is an air inlet (901), which is connected to the fan (11) through the outer carrier plate (10). The lower part of the other end of the air supply hood (9) cavity is provided with a second connecting hole (902), which is connected to the connecting pipe (12). Several slots are provided between the air inlet (901) and the second connecting hole (902), and filter plates (13) are inserted into the slots.

5. The energy-saving air supply device according to claim 4, characterized in that: The number of air supply hoods (9) is three, each having an arc-shaped inner cavity and connected to the outer circumference of the electrical cylinder (4).

6. The energy-saving air supply device according to claim 4, characterized in that: The slot consists of an inlet (903), a stop bar (904), and a bottom groove (905). The inlet (903) is located on the top surface of the air supply hood (9), and there are three inlet slots. The bottom groove (905) is set on the bottom surface of the inner cavity of the air supply hood (9), and its position corresponds to the position of the inlet (903). A vertical stop bar (904) is provided between the inlet (903) and the bottom groove (905). The stop bar (904) is fixed on the arc-shaped inner wall of the inner cavity of the air supply hood (9). The three filter plates (13) are inserted into the three inlet slots (903) in sequence. The side of the filter plate (13) contacts and limits the stop bar (904). The bottom surface of the filter plate (13) sits in the bottom groove (905).

7. The energy-saving air supply device according to claim 6, characterized in that: The diameter of the filter screen of the filter plate (13) decreases from the air inlet direction to the air outlet direction.

8. The energy-saving air supply device according to claim 1, characterized in that: A lifting plate (402) is provided between the electrical cylinder (4) and the air duct (2). The top of the lifting plate (402) is connected to the bottom surface of the electrical cylinder (4). There are three lifting plates (402) distributed at equal intervals along the outer edge of the electrical cylinder (4). The lifting plate (402) is circumferential and open on the outside. A connecting pipe (12) is provided inside the lifting plate (402).

9. The energy-saving air supply device according to claim 1, characterized in that: The air supply hood (9) is equipped with an electric heating wire.

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