Metal energy-saving axial flow blower

Abstract

The application discloses a metal energy-saving axial flow pressure fan, and relates to the related field of fans, which comprises a supporting base and a fixed half cylinder fixed on the top of the supporting base. The rear side of the fixed half cylinder is connected to one side of a matched half cylinder through a hinge. An air inlet is formed in the left side of the fixed half cylinder and the matched half cylinder. An air outlet is formed in the right side of the fixed half cylinder and the matched half cylinder. The setting of the cleaning mechanism can clean the dust on the surface of the air inlet net. The metal energy-saving axial flow pressure fan is provided with rotating fan blades and compensation fan blades. The angle of the adjustable fan blade body on the outer surface of the compensation fan blade can be adjusted to make the scattered air flow more stable, so that the air flow of the air inlet can be compensated, the air inlet net can be slightly shaken through the communication pipe, and the excess gas can be discharged through the pressure jet nozzle to clean the shaken dust.

Description

Technical Field

[0001] This invention relates to the field of fan-related technical fields, specifically to a metal energy-saving axial flow fan. Background Technology

[0002] As the core equipment of industrial ventilation systems, the performance of axial flow fans directly affects energy utilization efficiency and operating costs. With the continuous improvement of energy conservation and consumption reduction requirements in the industrial field, the research and development of metal energy-saving axial flow fans has become the focus of the industry. Conventional axial flow fans have fixed impeller angles, which make it difficult to dynamically adapt to complex working conditions, resulting in a significant reduction in operating efficiency under non-design conditions. Axial flow fans are required in engineering ventilation systems.

[0003] Existing fans, especially in high-temperature environments, lack insulation in their inner cylinders. Over long periods, this leads to heat circulation, causing the motor temperature to rise and increasing the risk of motor failure. To address this issue, a high-temperature axial flow fan disclosed in existing technology (Chinese patent application number CN201220213276.4, publication date 2013-03-20) can be referenced. This fan utilizes a cold air circulation cooling system and is wrapped with thermal insulation material, ensuring the motor inside the inner cylinder is not affected by ambient heat. Furthermore, its detachable inner cylinder structure reduces the workload during motor maintenance and replacement, thus extending the motor's lifespan. This utility model has a simple structure, significant cooling effect, and improves the service life of the fan. It can also refer to existing technology (Chinese patent application number CN202320805230.X, publication date 2024-02-27) which discloses an axial flow exhaust fan with a cooling structure. This fan has an arched seat inside the fan casing, a motor mounted on the surface of the arched seat, a first fan blade mounted on the end face of the motor's drive shaft, a cooling pipe at the lower end of the fan casing, a support seat inside the cooling pipe, a rotating shaft inside the support seat, a second fan blade mounted on one side of the rotating shaft, and a transmission rod at the inner end of the fan casing. The transmission rod drives the second fan blade from the outside. By blowing in cooling airflow, the motor can be effectively cooled. Finally, referring to the prior art (Chinese patent application number CN201620414837.5, publication date 2016-09-21), a cooling axial flow fan is disclosed, which includes a motor, rotor, impeller, blades, and cover. The rotor is located at the top of the motor and is placed inside the impeller. Blades are fixedly connected to the outer wall of the impeller. Both the motor and the impeller are placed inside the cover. Cooling pipes are fixedly connected inside the cover and are in close contact with the motor. The cooling pipes are connected to the pump body and contain liquid nitrogen, which can increase the cooling effect on the motor, improve service life, save costs, and improve efficiency.

[0004] Although the existing technologies mentioned above solve the above problems, there are still some shortcomings when using axial flow compressors. When the axial flow compressor is working, the air blown out is scattered in one direction, resulting in some loss of air force, which leads to low efficiency during use.

[0005] Therefore, we propose a metal energy-saving axial flow blower to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a metal energy-saving axial flow compressor to solve the problem mentioned in the background art, where the air blown out by the current axial flow compressors on the market is scattered in one direction, resulting in some loss of air force and low efficiency during use.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a metal energy-saving axial flow compressor, comprising a support base and a fixed half-cylinder fixed to the top of the support base. The rear side of the fixed half-cylinder is connected to one side of a mating half-cylinder via a hinge. An air inlet is provided on the left side of the fixed half-cylinder and the mating half-cylinder, and an air outlet is provided on the right side of the fixed half-cylinder and the mating half-cylinder. A drive motor is fixed on a bracket on the left side inside the support base. A rotating fan blade and a compensating fan blade are fixed at the output end of the drive motor. The size of the rotating fan blade is larger than the size of the compensating fan blade. In addition, a closable plate is provided inside the air outlet to allow airflow to pass into a connecting pipe. One end of the connecting pipe acts on the outside of a cleaning mechanism, which cleans the dust on the surface of the air inlet screen.

[0008] Preferably, the interior of the compensating fan blade includes a rotating worm gear rotatably connected to the outer side of the compensating fan blade. The outer side of the rotating worm gear is meshed with the outer side of the mating worm wheel. The surface of the mating worm wheel is fixed with several sets of connecting teeth at equal angles about the center of the mating worm wheel. The outer side of the connecting teeth is meshed with the outer side of the mating gear. The outer end of the center of the mating gear is fixed at the bottom of the fan blade body.

[0009] Preferably, the outer side of the fan blade body is rotatably disposed on the outer surface of the compensating fan blade, and the rotation range of the fan blade body is -30° to 30°. Through multi-angle adjustment, the rotating fan blade can be more fully compensated.

[0010] Preferably, the center of the rotating fan blade, the center of the compensating fan blade, and the center of the output end of the drive motor are collinear, and the worm gear is rotatably positioned inside the compensating fan blade. Thus, the wind force generated by the rotating fan blade can be pushed through the compensating fan blade.

[0011] Preferably, the cleaning mechanism includes a connecting pipe connected to one side of the air outlet. The left end of the connecting pipe extends into the inside of the air inlet, and the left end of the connecting pipe is connected to the end of the matching pipe. The outer end of the matching pipe is slidably disposed inside the fixed rod, and the inner side of the fixed rod is connected to the end of the matching pipe by a connecting spring. In addition, the outer end of the fixed rod is fixed to one side of the air intake mesh, and several sets of pressure jet nozzles are fixed to the outer end of the fixed rod. Through the setting of the cleaning mechanism, impurities remaining on the surface of the air intake mesh can be cleaned.

[0012] Preferably, the center of the air intake mesh slides through the outer side of the fixed slide rod, and the outer wall of the air intake mesh slides inside the air inlet. The end of the fixed slide rod away from the air intake mesh is fixed to the bracket on which the drive motor is fixed. The outer side of the fixed slide rod is fixed to one end of the cooperating spring, and the other end of the cooperating spring is fixed to one side of the air intake mesh. This allows the air intake mesh to move back and forth at the air inlet, facilitating cleaning.

[0013] Preferably, the mating tube includes a piston block fitted inside the fixed rod, and a conical block is tightly fitted inside the piston block. One end of the conical block near the inside of the mating tube is fixedly connected to one end of a return spring, and the other end of the return spring is fixed in a cavity opened inside the mating tube. This allows the mating tube to first drive the fixed rod to move, and then depressurize through a pressure jet nozzle.

[0014] Preferably, the spring force of the reset spring is greater than that of the connecting spring, and the search cone block forms a sliding structure between the reset spring and the interior of the piston block. In addition, the cavity and the interior of the connecting pipe are connected.

[0015] Preferably, the pressure jet nozzles are arranged in several groups at equal intervals about the center of the fixing rod, and the jet direction of the pressure jet nozzles is towards the inner side of the air intake mesh. The air intake mesh forms a sliding structure between the fixing rod and the inside of the air inlet.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This metal energy-saving axial flow blower is equipped with rotating fan blades and compensating fan blades. By rotating the fan blade body at an adjustable angle on the outer surface of the compensating fan blade, the scattered airflow can be delivered more stably, thereby compensating for the airflow at the air inlet. Furthermore, through the provided connecting pipe, the air inlet screen can be slightly shaken, and excess gas can be discharged through the pressure jet nozzle to clean the shaken-off dust. The specific details are as follows:

[0017] 1. A compensating fan blade is set up. By rotating the worm gear, the worm wheel inside the compensating fan blade rotates, which causes the connecting tooth block to drive the meshing gear to rotate. This allows the angle of the fan blade body on the outside of the compensating fan blade to be adjusted, thereby compensating for the airflow generated at the air inlet according to actual needs.

[0018] 2. A connecting pipe is installed. By closing the closing plate and the air outlet, and starting the drive motor, the airflow is transported through the connecting pipe. The airflow will drive the fixed rod to move through the connecting pipe, which in turn drives the air intake screen to move. When it moves to the maximum position, the gas is depressurized through the pressure jet nozzle, which can then vibrate the dust on the surface of the air intake screen. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the front cross-sectional structure of the fixed semi-cylinder of the present invention;

[0022] Figure 4 This is a schematic diagram of the main structure of the compensating fan blade of the present invention;

[0023] Figure 5 This is a side view of the fan blade body structure of the present invention;

[0024] Figure 6 For the present invention Figure 4 Enlarged structural diagram at point B;

[0025] Figure 7 This is a side view of the air intake mesh structure of the present invention;

[0026] Figure 8 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0027] Figure 9 This is a schematic diagram of the main cross-sectional structure of the fixing rod of the present invention;

[0028] Figure 10 This is a schematic diagram of the main cross-sectional structure of the fitting tube of the present invention.

[0029] In the diagram: 1. Support base; 2. Fixed half-cylinder; 3. Matching half-cylinder; 4. Air inlet; 5. Air outlet; 6. Closing plate; 7. Drive motor; 8. Rotating fan blade; 9. Compensating fan blade; 91. Rotating worm gear; 92. Matching worm wheel; 93. Connecting gear block; 94. Matching gear; 95. Fan blade body; 10. Connecting pipe; 11. Closing valve; 12. Matching pipe; 121. Piston block; 122. Conical block; 123. Return spring; 124. Cavity; 13. Fixed rod; 131. Connecting spring; 14. Air inlet mesh; 15. Pressure jet nozzle; 16. Fixed slide rod; 17. Matching spring. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-10 The present invention provides the following technical solution: Example

[0032] To address the issue of low efficiency in current axial flow blowers where the airflow is dispersed in one direction, resulting in some airflow loss, please refer to the attached document. Figure 1 -Appendix Figure 6The system includes a support base 1 and a fixed half-cylinder 2 fixed to the top of the support base 1. The rear side of the fixed half-cylinder 2 is connected to one side of the mating half-cylinder 3 via a hinge. An air inlet 4 is provided on the left side of the fixed half-cylinder 2 and the mating half-cylinder 3, and an air outlet 5 is provided on the right side of the fixed half-cylinder 2 and the mating half-cylinder 3. The system is characterized in that: a drive motor 7 is fixed on a bracket on the left side inside the support base 1; a rotating fan blade 8 and a compensating fan blade 9 are fixed at the output end of the drive motor 7; the size of the rotating fan blade 8 is larger than the size of the compensating fan blade 9; the interior of the compensating fan blade 9 includes a rotating worm gear 91 rotatably connected to the outer side of the compensating fan blade 9; the outer side of the rotating worm gear 91 is meshed with... On the outer side of the worm gear 92, several sets of connecting tooth blocks 93 are fixed at an angle relative to the center of the worm gear 92. The outer side of the connecting tooth blocks 93 is meshed with the outer side of the mating gear 94. The outer end of the center of the mating gear 94 is fixed at the bottom of the fan blade body 95. The outer side of the fan blade body 95 is rotatably set on the outer side of the surface of the compensating fan blade 9, and the rotation range of the fan blade body 95 is -30° to 30°. The center of the rotating fan blade 8, the center of the compensating fan blade 9, and the center of the output end of the drive motor 7 are collinear. The mating worm gear 92 is rotatably set on the inner side of the compensating fan blade 9.

[0033] Firstly, to facilitate compensation for the wind force generated by the air inlet 4, the mating half-cylinder 3 is rotated, causing one end of the mating half-cylinder 3 to rotate outside the fixed half-cylinder 2. This allows the drive motor 7, the rotating fan blade 8, and the compensating fan blade 9 to be displayed. Subsequently, by rotating the rotating worm 91 on one side of the compensating fan blade 9, the rotating worm 91 drives the meshing worm wheel 92 to rotate as it rotates outside the compensating fan blade 9. Several sets of connecting tooth blocks 93 are fixed on one side of the surface of the meshing worm wheel 92. When the connecting tooth blocks 93 rotate, they drive the meshing gear 9. 4. The compensating fan blade 9 rotates inside the blade, and the center of the gear 94 is fixed at the end of the blade body 95. This allows the blade body 95 to adjust its angle outside the compensating fan blade 9. All blade bodies 95 rotate synchronously, and the adjusted angle is the same. When the fan blade 8 rotates, it also drives the compensating fan blade 9 to rotate. The airflow generated by the rotating fan blade 8 will cross at a point. The rotation of the compensating fan blade 9 can push the airflow to cross, so that the airflow will be discharged more stably through the outlet 5. Example

[0034] This embodiment differs from Embodiment 1 in that, after closing the closing plate 6 and one side of the air inlet 4, the dust inside the air intake mesh 14 installed inside the air inlet 4 can be cleaned by adjusting the airflow. (See attached diagram.) Figure 1 -Appendix Figure 3and attached Figure 7 -Appendix Figure 10 The air outlet 5 has a closable plate 6 inside, allowing airflow into the connecting pipe 10. One end of the connecting pipe 10 acts on the outside of the cleaning mechanism, which cleans the dust on the surface of the air intake screen 14. The left end of the connecting pipe 10 extends into the inside of the air intake 4 and is connected to the end of the mating pipe 12. The outer end of the mating pipe 12 is slidably disposed inside the fixing rod 13, and the inner side of the fixing rod 13 is connected to the end of the mating pipe 12 by a connecting spring 131. The outer end of the fixing rod 13 is fixed to one side of the air intake screen 14, and several sets of pressure jet nozzles 15 are fixed to the outer end of the fixing rod 13. The center of the air intake screen 14 slides through the outer side of the fixing slide rod 16, and the outer wall of the air intake screen 14 is slidably disposed inside the air intake 4. The end of the fixing slide rod 16 away from the air intake screen 14 is fixed to the bracket fixed to the drive motor 7, and the outer side of the fixing slide rod 16 is connected to the mating spring 131. One end of the spring 17 is fixed, and the other end of the spring 17 is fixed to one side of the air intake mesh 14; the interior of the mating tube 12 includes a piston block 121 that fits into the interior of the fixed rod 13, and a conical block 122 is tightly fitted inside the piston block 121. One end of the conical block 122 near the interior of the mating tube 12 is fixedly connected to one end of the return spring 123, and the other end of the return spring 123 is fixed inside the cavity 124 opened inside the mating tube 12; the return spring 123 The elastic force is greater than that of the connecting spring 131, and the search cone block 122 forms a sliding structure between the interior of the piston block 121 and the return spring 123. In addition, the cavity 124 is connected to the interior of the connecting pipe 10. Several groups of pressure jet nozzles 15 are equally spaced about the center of the fixed rod 13, and the jet direction of the pressure jet nozzles 15 is towards the inner side of the air intake net 14. The air intake net 14 forms a sliding structure between the interior of the air intake 4 and the fixed rod 13.

[0035] After the closing plate 6 and the air inlet 4 are closed, the drive motor 7 is started to drive the rotating fan blade 8 to rotate, which prevents the airflow from being released. At this time, the airflow will flow through the connecting pipe 10. At this time, the closing valve 11 needs to be opened, so that the gas inside the connecting pipe 10 will be transported to the cavity 124 opened in the matching pipe 12, thereby separating the matching pipe 12 from the fixed rod 13. At this time, the fixed rod 13 will also drive the air intake net 14 to slide on the outside of the fixed slide rod 16. In addition, the other end of the fixed slide rod 16 will also drive the matching spring 17 to stretch. When the fixed rod 13 moves to the maximum range, the gas will be depressurized through the pressure jet nozzle 15. In addition, during the depressurization process, the matching spring 17 will also drive the air intake net 14 to reset. When the air intake net 14 shakes, it will also be cleaned by blowing air, thereby achieving the purpose of cleaning the outside of the air intake net 14.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A metal energy-saving axial flow fan, comprising a supporting base (1) and a fixed half cylinder (2) fixed on the top of the supporting base (1), the rear side of the fixed half cylinder (2) is connected to one side of a matched half cylinder (3) through a hinge, an air inlet (4) is arranged on the left side of the fixed half cylinder (2) and the matched half cylinder (3), and an air outlet (5) is arranged on the right side of the fixed half cylinder (2) and the matched half cylinder (3); characterized in that: The support base (1) inside left side support fixed with drive motor (7), the output end of drive motor (7) is fixed with rotating fan blade (8) and compensation fan blade (9), the size of rotating fan blade (8) is greater than the size of compensation fan blade (9), in addition, the inside of air outlet (5) is provided with the closing plate (6) of closable processing, realize air flow circulation to the inside of communication pipe (10), one end of communication pipe (10) acts on the outside of cleaning mechanism, the dust on the surface of air inlet net (14) is cleaned by the setting of cleaning mechanism. The inside of compensation fan blade (9) includes the rotating worm (91) rotatably connected to the outside of compensation fan blade (9), the outside of rotating worm (91) is engagedly connected to the outside of matching worm wheel (92), a plurality of sets of connecting tooth blocks (93) are fixed at equal angles on the surface of matching worm wheel (92) about the center position of matching worm wheel (92), and the outside of connecting tooth block (93) is engagedly connected with the outside of matching gear (94), and the center outer end of matching gear (94) is fixed at the bottom position of fan body (95). The cleaning mechanism includes the communication pipe (10) connected to one side of air outlet (5), the left end of communication pipe (10) is inserted into the inside of air inlet (4), and the left end of communication pipe (10) is connected with the end of matching pipe (12), the outer end of matching pipe (12) is slidingly arranged in the inside of fixed rod (13), and the inside of fixed rod (13) is connected with the end of matching pipe (12) through connecting spring (131), in addition, the outer end of fixed rod (13) is fixed on one side of air inlet net (14), and a plurality of sets of pressure air nozzles (15) are fixed on the outer end of fixed rod (13).

2. The metal energy-saving axial flow blower fan according to claim 1, characterized in that: The outside of fan body (95) is rotatably arranged on the surface of compensation fan blade (9), and the rotation range of fan body (95) is -30°-30°.

3. The metal energy-saving axial flow blower fan according to claim 1, characterized in that: The centers of rotating fan blade (8), compensation fan blade (9) and the output end of drive motor (7) are arranged in a line, and the matching worm wheel (92) is rotatably arranged on the inside of compensation fan blade (9).

4. The metal energy-saving axial flow blower fan according to claim 1, characterized in that: The center of air inlet net (14) is slidingly arranged on the outside of fixed slide rod (16), and the outer wall of air inlet net (14) is slidingly arranged in the inside of air inlet (4), one end of fixed slide rod (16) is fixed on the support fixed with drive motor (7), the outside of fixed slide rod (16) is fixed with one end of matching spring (17), and the other end of matching spring (17) is fixed on one side of air inlet net (14).

5. The metal energy-saving axial flow blower fan according to claim 1, characterized in that: The interior of the matching pipe (12) comprises a piston block (121) which is tightly fitted in the interior of the fixed rod (13), a conical block (122) is tightly fitted in the interior of the piston block (121), one end of the conical block (122) is fixedly connected to one end of a reset spring (123) which is close to the interior of the matching pipe (12), and the other end of the reset spring (123) is fixedly positioned in a cavity (124) which is formed in the interior of the matching pipe (12).

6. The metal energy-saving axial flow blower fan according to claim 5, characterized in that: The elastic force of the reset spring (123) is greater than that of the connecting spring (131), and the conical block (122) and the interior of the piston block (121) constitute a sliding structure through the reset spring (123), and the cavity (124) and the interior of the communication pipe (10) are connected.

7. The metal energy-saving axial flow blower fan according to claim 5, characterized in that: The pressure jet nozzles (15) are arranged at equal intervals with respect to the center of the fixed rod (13), the jet direction of the pressure jet nozzles (15) is towards the inner side of the air inlet net (14), and the air inlet net (14) and the interior of the air inlet (4) constitute a sliding structure through the fixed rod (13).

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