An efficient and energy-saving optimized centrifugal fan

Abstract

The utility model relates to the technical field of centrifugal fans, and proposes an optimized centrifugal fan with high efficiency and energy saving, including a shell, a connecting cover fixedly connected to the front of the shell, a filter cover threadedly connected to the inner circle of the connecting cover, a connecting ring threadedly connected to the inner circle of the filter cover, a coarse filter screen fixedly connected to the left end of the connecting ring, a fine filter screen threadedly connected to the inner circle of the filter cover, a limiting ring fixedly connected to the inner circle of the filter cover, the left side of the fine filter screen contacts the right side of the limiting ring, and a soundproof cover fixedly installed on the right side of the shell. Through the above technical scheme, the problem that the drive assembly, machine body, deceleration plate, mixing screen, water pump assembly, nozzle and treatment box and other components need to be set when dust is removed from the gas before ventilation in the related technology is solved, which will increase the overall cost of the centrifugal fan and increase the energy consumption of the centrifugal fan during operation, and fail to achieve energy saving effect.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, and in particular to an efficient and energy-saving optimized centrifugal fan. Background Art

[0002] In a centrifugal fan, when the impeller rotates, the gas between the blades gains kinetic energy due to the centrifugal force and is discharged from the periphery of the impeller. It is guided by the volute-shaped casing to flow toward the fan outlet, thereby forming a negative pressure in the center of the impeller, allowing external air to flow in continuously to replenish it, thereby enabling the fan to discharge the gas.

[0003] At present, a Chinese patent with announcement number CN216975285U discloses a centrifugal fan with high efficiency, energy saving and stable performance, which includes a base plate, a shock-absorbing plate is fixedly connected to the upper surface of the base plate, a body is arranged on the upper surface of the shock-absorbing plate, a treatment box is fixedly connected to the upper surface of the base plate, an air intake pipe is arranged on the right side of the treatment box, a connecting bearing is arranged on the inner wall of the air intake pipe, and a rotating rod is arranged on the inner wall of the connecting bearing. However, in the above patent, when dust is removed from the gas before ventilation, components such as a drive assembly, a body, a deceleration plate, a mixing screen, a water pump assembly, a nozzle and a treatment box need to be arranged, which will increase the overall cost of the centrifugal fan and increase the energy consumption of the centrifugal fan during operation, and fail to achieve the effect of energy saving. For this reason, we propose an optimized centrifugal fan with high efficiency and energy saving to solve the above problems. Utility Model Content

[0004] The utility model proposes an optimized centrifugal fan with high efficiency and energy saving, which solves the problem that when dust is removed from the gas before ventilation in the related technology, a drive assembly, a machine body, a speed reducer, a mixing screen, a water pump assembly, a nozzle and a processing box and other components need to be set, which will increase the overall cost of the centrifugal fan and the energy consumption of the centrifugal fan during operation, and the energy-saving effect cannot be achieved.

[0005] The technical solution of the utility model is as follows:

[0006] A high-efficiency and energy-saving optimized centrifugal fan comprises a shell, a connecting cover is fixedly connected to the front of the shell, a filter cover is threadedly connected to the inner ring of the connecting cover, a connecting ring is threadedly connected to the inner ring of the filter cover, a coarse filter is fixedly connected to the left end of the connecting ring, a fine filter is threadedly connected to the inner ring of the filter cover, a limiting ring is fixedly connected to the inner ring of the filter cover, the left side of the fine filter is in contact with the right side of the limiting ring, a soundproof cover is fixedly installed on the right side of the shell, a driving motor is fixedly installed on the inner side wall of the soundproof cover, a bearing ring is fixedly inlaid on the right side of the shell, the inner ring of the bearing ring is fixedly connected to a driving shaft, the output end of the driving motor is fixedly connected to the right end of the driving shaft, and a plurality of impellers are fixedly connected to the outer surface of the driving shaft.

[0007] The left end of the shell is fixedly connected with an exhaust connection plate, and the left side of the exhaust connection plate is provided with two groups of first connection holes.

[0008] A connection cover is fixedly connected to the outer surface of the connecting cover, and a plurality of second connection holes are formed on the outer surface of the connection cover.

[0009] The bottom surface of the shell is fixedly connected with two mounting seats, and the bottom surfaces of the two mounting seats are each provided with two mounting holes.

[0010] A connecting plate is provided below the shell, and the side surfaces of the two mounting seats close to each other are fixedly connected to the outer surface of the connecting plate.

[0011] The left side of the filter cover is provided with an annularly arranged groove, and the upper surface of the shell is fixedly connected with a handle.

[0012] The beneficial effects of the utility model are:

[0013] In the utility model, a coarse filter screen and a fine filter screen can be installed through the filter cover provided inside the connecting cover. The setting of the coarse filter screen and the fine filter screen can filter and block the debris in the ventilation air to avoid collision damage to the impeller of the fan. In addition, through the setting of the filter component, the overall cost of the centrifugal fan can be reduced, and there is no need to set up components such as a drive component, a body and a water pump, thereby reducing the energy consumption of the centrifugal fan during operation and achieving an energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a front view of a high-efficiency and energy-saving optimized centrifugal fan of the utility model;

[0016] Figure 2 It is a cross-sectional view of a front view of an efficient and energy-saving optimized centrifugal fan of the utility model;

[0017] Figure 3 It is a cross-sectional view of a side view of an efficient and energy-saving optimized centrifugal fan of the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of a bottom view of a high-efficiency and energy-saving optimized centrifugal fan of the utility model.

[0019] In the figure: 1. Shell; 2. Connecting cover; 3. Filter cover; 4. Coarse filter; 5. Connecting ring; 6. Fine filter; 7. Limiting ring; 8. Connecting cover; 9. Second connecting hole; 10. Groove; 11. Sound insulation cover; 12. Bearing ring; 13. Drive motor; 14. Drive shaft; 15. Impeller; 16. Mounting seat; 17. Mounting hole; 18. Connecting plate; 19. Handle; 20. Exhaust connecting plate; 21. First connecting hole. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] like Figure 1 to Figure 4 As shown, this embodiment proposes an efficient and energy-saving optimized centrifugal fan, including a shell 1, a connecting cover 2 is fixedly connected to the front of the shell 1, the inner ring of the connecting cover 2 is threadedly connected to the filter cover 3, the inner ring of the filter cover 3 is threadedly connected to the connecting ring 5, the left end of the connecting ring 5 is fixedly connected to the coarse filter screen 4, the inner ring of the filter cover 3 is threadedly connected to the fine filter screen 6, the inner ring of the filter cover 3 is fixedly connected to the limiting ring 7, the left side of the fine filter screen 6 is in contact with the right side of the limiting ring 7, a soundproof cover 11 is fixedly installed on the right side of the shell 1, a driving motor 13 is fixedly installed on the inner side wall of the soundproof cover 11, a bearing ring 12 is fixedly inlaid on the right side of the shell 1, the inner ring of the bearing ring 12 is fixedly connected to the driving shaft 14, the output end of the driving motor 13 is fixedly connected to the right end of the driving shaft 14, and the outer surface of the driving shaft 14 is fixedly connected to a plurality of impellers 15.

[0023] In this embodiment, the operation of the driving motor 13 can drive the driving shaft 14 and the impeller 15 to rotate at high speed, and will filter and block the debris in the air through the coarse filter 4 and the fine filter 6 in turn, avoiding collision damage to the impeller 15 of the fan.

[0024] Example 2

[0025] like Figure 1 to Figure 4 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes that the left end of the shell 1 is fixedly connected to an exhaust connection plate 20, and two groups of first connection holes 21 are opened on the left side surface of the exhaust connection plate 20, and the outer surface of the connecting cover 2 is fixedly connected to the connecting cover 8, and the outer surface of the connecting cover 8 is opened with multiple second connection holes 9.

[0026] In this embodiment, through the exhaust connection plate 20 and the first connection hole 21, and the cooperation with the connection cover 8 and the second connection hole 9, the fan can be flexibly connected and installed with the ventilation duct, thereby improving the connection and installation speed between the duct.

[0027] Two mounting seats 16 are fixedly connected to the bottom surface of the shell 1, and two mounting holes 17 are provided on the bottom surfaces of the two mounting seats 16. A connecting plate 18 is provided under the shell 1, and the side surfaces of the two mounting seats 16 close to each other are fixedly connected to the outer surface of the connecting plate 18. The left side surface of the filter cover 3 is provided with an annularly arranged grooves 10, and a handle 19 is fixedly connected to the upper surface of the shell 1.

[0028] In this embodiment, the fan can be firmly installed and fixed by means of the mounting seat 16 and the mounting hole 17, in cooperation with the connecting plate 18. The setting of the groove 10 can facilitate the disassembly and installation of the filter cover 3. The setting of the handle 19 will facilitate the movement and lifting of the fan.

[0029] The working principle of the utility model is: first, the shell 1 is installed and fixed through the mounting seat 16 and the mounting hole 17, and then the device is connected to the power supply, and the driving motor 13 is started to operate, and the driving motor 13 is used to drive the high-speed rotation of the driving shaft 14 and the impeller 15, so that the external air can be drawn through the coarse filter 4, and the debris in the air will be filtered and blocked through the coarse filter 4 and the fine filter 6 in turn, and then the gas during centrifugal ventilation is discharged through the exhaust connection plate 20. When cleaning the filter assembly, the filter cover 3 is rotated counterclockwise through the groove 10, and the filter cover 3 can be removed from the inside of the connecting cover 2, and then the coarse filter 4 and the fine filter 6 are removed and cleaned in turn.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An energy-efficient optimized centrifugal fan, characterized in that: The invention comprises a shell (1), the front face of the shell (1) is fixedly connected to a connecting cover (2), the inner circle of the connecting cover (2) is threadedly connected to a filter cover (3), the inner circle of the filter cover (3) is threadedly connected to a connecting ring (5), the left end of the connecting ring (5) is fixedly connected to a coarse filter screen (4), the inner circle of the filter cover (3) is threadedly connected to a fine filter screen (6), the inner circle of the filter cover (3) is fixedly connected to a limiting ring (7), and the left side of the fine filter screen (6) is connected to the limiting ring (7). The right side of the housing (1) is in contact with the right side surface of the housing (1), a soundproof cover (11) is fixedly installed on the right side surface of the housing (1), a driving motor (13) is fixedly installed on the inner wall of the soundproof cover (11), a bearing ring (12) is fixedly inlaid on the right side surface of the housing (1), the inner ring of the bearing ring (12) is fixedly connected to a driving shaft (14), the output end of the driving motor (13) is fixedly connected to the right end of the driving shaft (14), and the outer surface of the driving shaft (14) is fixedly connected to a plurality of impellers (15).

2. The high-efficiency and energy-saving optimized centrifugal fan according to claim 1, characterized in that: The left end of the shell (1) is fixedly connected to an exhaust connection plate (20), and the left side surface of the exhaust connection plate (20) is provided with two groups of first connection holes (21).

3. The high-efficiency and energy-saving optimized centrifugal fan according to claim 1, characterized in that: A connection cover (8) is fixedly connected to the outer surface of the connecting cover (2), and a plurality of second connection holes (9) are formed on the outer surface of the connection cover (8).

4. The high-efficiency and energy-saving optimized centrifugal fan according to claim 1, characterized in that: Two mounting seats (16) are fixedly connected to the bottom surface of the shell (1), and two mounting holes (17) are provided on the bottom surfaces of the two mounting seats (16).

5. The high-efficiency and energy-saving optimized centrifugal fan according to claim 4, characterized in that: A connecting plate (18) is provided below the shell (1), and the side surfaces of the two mounting seats (16) that are close to each other are fixedly connected to the outer surface of the connecting plate (18).

6. The high-efficiency and energy-saving optimized centrifugal fan according to claim 1, characterized in that: The left side surface of the filter cover (3) is provided with an annularly arranged groove (10), and the upper surface of the shell (1) is fixedly connected with a handle (19).

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