Air inlet mechanism for magnetic suspension high-speed centrifugal blower

Abstract

The air inlet mechanism comprises an outer shell, one side of the outer shell is fixedly connected with a connecting pipe, an adjusting pipe is rotatably installed in the connecting pipe, one end of the adjusting pipe is fixedly connected with a sealing ring, and the sealing ring is rotatably installed on the surface of the inner wall of the connecting pipe. The sealing ring is connected to one side of the interior of the outer shell in an abutting-against mode, the other end of the adjusting pipe is fixedly connected with an air inlet pipe, the air inlet pipe is rotatably installed at the end of the connecting pipe, a combined threaded rod is fixedly installed in the center of the interior of the air inlet pipe, and one end of the combined threaded rod is fixedly connected with a filtering column in a sleeving mode. Clamping plates are fixedly connected to the two ends of the filter column, the filter column is mounted through the combined threaded rod, and the clamping plates and locking nuts are combined for locking and fixing, so that combined mounting for filtering is facilitated, purification protection is facilitated, adjustment and use are facilitated, and the adaptability is high.

Description

Technical Field

[0001] The utility model relates to the field of blowers, and more specifically to an air intake mechanism for a magnetically suspended high-speed centrifugal blower. Background Art

[0002] The air intake casing in the existing multi-stage centrifugal blower has a relatively complex geometric shape, and its impact on the overall performance of the multi-stage blower when in use is not as great as that of the impeller, diffuser, volute and other devices. Therefore, there are very few research results on the air intake casing in specific studies. In specific use, different air intake casings often cause larger vortices, especially at the impeller inlet where the gas velocity distribution is not uniform and the flow loss is too large, which affects the performance of the multi-stage centrifugal blower and reduces the working efficiency of the multi-stage centrifugal blower, especially for magnetically levitated high-altitude centrifugal blowers, where the air intake structure requires to be more precise.

[0003] The utility model with authorization announcement number CN210859337U discloses an air intake casing for a multistage centrifugal blower, including an air intake casing body, which is connected to the multistage centrifugal blower and is used to connect with a butterfly valve and a pipeline to perform air intake diversion, wherein an intake chamber, an impeller chamber and a diversion device are provided inside the air intake casing, the intake chamber is arranged on one side of the impeller chamber, a partition plate and an impeller are provided inside the impeller chamber, a connector for connecting the multistage centrifugal blower is provided on the side of the impeller chamber away from the intake chamber, an intake flange for connecting a butterfly valve or a flange is provided at one end of the intake chamber, and the diversion device is provided inside the intake chamber. The additional diversion device can effectively reduce the flow loss of gas in the intake chamber, allow the gas to enter the impeller more evenly, reduce vortex, and help to ensure the stability of the mechanical performance of the whole machine, thereby improving the efficiency of the whole machine.

[0004] In the above-mentioned disclosed structure, ventilation and air intake are achieved by setting up multiple chambers, but there is a lack of rotatable adjustment tubes and air intake pipes, and the air intake direction cannot be rotated to adjust, which is easy to interfere with the installation position, and there is a lack of a combined filtering structure inside, which is not conducive to filtering and purifying the air intake position, and it is easy to cause blockage to the internal centrifugal structure. The safety is poor and it is not conducive to disassembly and cleaning, so it needs to be improved. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide an air intake mechanism for a magnetically levitated high-speed centrifugal blower, in which an adjusting pipe is installed through a connecting pipe on one side of the outer shell, thereby installing a sealing ring and an air intake pipe, which can be installed in combination, which is convenient for rotation to adjust the direction, and the filter column is installed through a combined threaded rod, which is locked and fixed in combination with a clamping plate and a locking nut, which is convenient for combined installation for filtration, conducive to purification and protection, convenient for adjustment and use, and has high adaptability.

[0006] To solve the above problems, the present utility model adopts the following technical solutions.

[0007] An air intake mechanism for a magnetic levitation high-speed centrifugal blower, comprising an outer housing. One side of the outer housing is fixedly connected with a connecting pipe. An adjusting pipe is rotatably installed inside the connecting pipe. One end of the adjusting pipe is fixedly connected with a sealing ring, and the sealing ring is rotatably installed on the inner wall surface of the connecting pipe. The sealing ring is tightly connected to one side inside the outer housing. The other end of the adjusting pipe is fixedly connected with an air inlet pipe, and the air inlet pipe is rotatably installed at the end position of the connecting pipe. At the central position inside the air inlet pipe, a combined threaded rod is fixedly installed. One end of the combined threaded rod is fixedly sleeved with a filter column. Both ends of the filter column are fixedly connected with clamping plates. On one side surface of the clamping plates, a locking nut is tightly connected, and the locking nut is threadedly installed at both ends of the combined threaded rod. The clamping plates are sleeved on the outer surface of the combined threaded rod. Through grooves are provided on the surfaces of the clamping plates, and brackets are provided inside the through grooves, and the brackets are located inside the clamping plates.

[0008] Further, external threads are provided on the outer surface of the air inlet pipe, and the external threads are symmetrically distributed at both ends of the outer surface of the air inlet pipe.

[0009] Further, a cover plate is threadedly installed on the outer surface of the external threads, and the cover plate is threadedly installed at one end of the air inlet pipe.

[0010] Further, one end of the combined threaded rod is fixedly connected inside the cover plate, and the cover plate is located on the surface of one end of the air inlet pipe. By threadedly installing the cover plate through the external threads, it can be threadedly installed and positioned, which is convenient for split installation and beneficial for adjustment and use.

[0011] Further, one end of the outer surface of the adjusting pipe is rotatably sleeved with an external thread cylinder, and the external thread cylinder is threadedly installed inside the connecting pipe.

[0012] Further, an operation ring is provided at one end of the external thread cylinder, and the operation ring is located at the end position of the connecting pipe.

[0013] Further, a pressing ball head is provided at one end of the external thread cylinder, and the pressing ball head is tightly connected to one end surface of the sealing ring. By connecting the operation ring and the pressing ball head through the external thread cylinder, it can be combined and installed for positioning, which is convenient for pressing and positioning the sealing ring, avoiding loosening and falling off, and at the same time, it will not interfere with rotation adjustment, and has high adaptability.

[0014] Compared with the prior art, the advantages of the present utility model are as follows:

[0015] (1) In this solution, the adjustment pipe is installed through the connecting pipe on one side of the outer casing, and then the sealing ring and the intake pipe are installed. They can be assembled and installed, which is beneficial for rotating and adjusting the orientation. Moreover, the filter column is installed through the combined threaded rod, and is locked and fixed by combining the clamping plate and the locking nut, which is convenient for combined installation for filtration, beneficial for purification and protection, convenient for adjustment and use, and has high adaptability.

[0016] (2) The cover plate is installed through the external thread, and can be installed and positioned by threading, which is convenient for split installation and beneficial for adjustment and use.

[0017] (3) The operating ring and the pressing ball head are connected through the external thread cylinder, and can be assembled and installed and positioned, which is convenient for pressing and positioning the sealing ring, avoiding loosening and falling off. At the same time, it will not interfere with the rotation and adjustment, and has high adaptability. Description of the Drawings

[0018] Figure 1 is the external three-dimensional schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is the cross-sectional schematic diagram of the planar structure of the present utility model;

[0020] Figure 3 is the partial cross-sectional view of the connection of the filter column of the present utility model;

[0021] Figure 4 is the three-dimensional schematic diagram of the connection between the filter column and the clamping plate of the present utility model;

[0022] Figure 5 is the partial structural diagram of the connection of the external thread cylinder of the present utility model.

[0023] Explanation of the reference numerals in the drawings:

[0024] 1 Outer casing, 11 Connecting pipe, 12 Adjustment pipe, 13 Sealing ring, 14 Intake pipe, 15 Combined threaded rod, 16 Filter column, 17 Clamping plate, 18 Locking nut, 2 Through groove, 21 Bracket, 22 External thread, 23 Cover plate, 24 External thread cylinder, 25 Operating ring, 26 Pressing ball head. Detailed Embodiment

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figure 1 、 Figure 2 and Figure 4, An air intake mechanism for a magnetic levitation high-speed centrifugal blower, including a housing 1. One side of the housing 1 is fixedly connected with a connecting pipe 11. An adjusting pipe 12 is rotatably installed inside the connecting pipe 11. One end of the adjusting pipe 12 is fixedly connected with a sealing ring 13. The sealing ring 13 is rotatably installed on the inner wall surface of the connecting pipe 11. The sealing ring 13 is tightly pressed against one side inside the housing 1. The other end of the adjusting pipe 12 is fixedly connected with an air inlet pipe 14. By connecting the sealing ring 13 and the air inlet pipe 14 through the adjusting pipe 12, they can be assembled and positioned, and the orientation position of the air inlet pipe 14 can be rotated and adjusted to a reasonable position to avoid interference with the installation position, thereby facilitating air intake and ensuring the safety and stability of the use of the magnetic levitation high-speed centrifugal blower. The air inlet pipe 14 is rotatably installed at the end position of the connecting pipe 11. A combined threaded rod 15 is fixedly installed at the central position inside the air inlet pipe 14. One end of the combined threaded rod 15 is fixedly sleeved with a filter column 16. By connecting the filter column 16 through the combined threaded rod 15, they can be assembled and positioned, and then connected to the inside of the air inlet pipe 14 for filtration, improving safety and stability, ensuring the protection effect on the inside of the magnetic levitation high-speed centrifugal blower, and facilitating use. Both ends of the filter column 16 are fixedly connected with clamping plates 17. One side surface of the clamping plate 17 is tightly pressed and connected with a locking nut 18. The locking nut 81 is threadedly installed at both ends of the combined threaded rod 15. By tightening the clamping plate 17 with the locking nut 18, the filter column 16 can be clamped and positioned, which is convenient for assembly and disassembly, and also convenient for cleaning and replacement after separation, efficient and fast, and convenient for adjustment and use. The clamping plate 17 is sleeved on the outer surface of the combined threaded rod 15. A through groove 2 is provided on the surface of the clamping plate 17, and a bracket 21 is provided inside the through groove 2. The bracket 21 is located inside the clamping plate 17.

[0027] Please refer to Figure 2 and Figure 3 , External threads 22 are provided on the outer surface of the air inlet pipe 14. The external threads 22 are symmetrically distributed at both ends of the outer surface of the air inlet pipe 14. A cover plate 23 is threadedly installed on the outer surface of the external threads 22. The cover plate 23 is threadedly installed at one end position of the air inlet pipe 14. The inside of the cover plate 23 is fixedly connected to one end of the combined threaded rod 15. The cover plate 23 is located on the surface of one end of the air inlet pipe 14. By threadedly installing the cover plate, it can be threadedly installed and positioned, which is convenient for split installation and facilitates adjustment and use.

[0028] Please refer to Figure 2 and Figure 5One end of the outer surface of the adjusting tube 12 is rotatably sleeved with an external threaded tube 24, and the external threaded tube 24 is threadedly installed in the interior of the connecting tube 11. One end of the external threaded tube 24 is provided with an operating ring 25, and the operating ring 25 is located at the end position of the connecting tube 11. One end of the external threaded tube 24 is provided with a clamping ball head 26, and the clamping ball head 26 is tightly connected to one end surface of the sealing ring 13. The operating ring and the clamping ball head are connected by the external threaded tube, and can be combined for installation and positioning, which is convenient for clamping and positioning the sealing ring to avoid loosening and falling out. At the same time, it will not interfere with the rotation adjustment, and has high adaptability.

[0029] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An air intake mechanism for a magnetically suspended high-speed centrifugal blower, comprising an outer shell (1), a connecting pipe (11) being fixedly connected to one side of the outer shell (1), and an adjusting pipe (12) being rotatably mounted inside the connecting pipe (11), characterized in that: One end of the regulating tube (12) is fixedly connected to a sealing ring (13), the sealing ring (13) is rotatably mounted on the inner wall surface of the connecting tube (11), the sealing ring (13) is tightly connected to the inner side of the outer shell (1), the other end of the regulating tube (12) is fixedly connected to an air intake pipe (14), the air intake pipe (14) is rotatably mounted on the end position of the connecting tube (11), a combined threaded rod (15) is fixedly mounted at the inner center position of the air intake pipe (14), one end of the combined threaded rod (15) is fixedly sleeved A filter column (16) is provided, and both ends of the filter column (16) are fixedly connected to a clamping plate (17), and a locking nut (18) is pressed and connected to a surface of one side of the clamping plate (17), and the locking nut (18) is threadedly installed at both ends of a combined threaded rod (15), and the clamping plate (17) is sleeved on the outer surface of the combined threaded rod (15), and a through groove (2) is provided on the surface of the clamping plate (17), and a bracket (21) is provided inside the through groove (2), and the bracket (21) is located inside the clamping plate (17).

2. The air intake mechanism for a magnetically suspended high-speed centrifugal blower according to claim 1, characterized in that: The outer surface of the air intake pipe (14) is provided with external threads (22), and the external threads (22) are symmetrically distributed at two ends of the outer surface of the air intake pipe (14).

3. The air intake mechanism for a magnetically suspended high-speed centrifugal blower according to claim 2, characterized in that: A cover plate (23) is threadedly mounted on the outer surface of the external thread (22), and the cover plate (23) is threadedly mounted on one end of the air intake pipe (14).

4. The air intake mechanism for a magnetically suspended high-speed centrifugal blower according to claim 3, characterized in that: The interior of the cover plate (23) is fixedly connected to one end of the combined threaded rod (15), and the cover plate (23) is located on one end surface of the air inlet pipe (14).

5. The air intake mechanism for a magnetically suspended high-speed centrifugal blower according to claim 1, characterized in that: An external threaded tube (24) is rotatably sleeved on one end of the outer surface of the regulating tube (12), and the external threaded tube (24) is threadably mounted inside the connecting tube (11).

6. The air intake mechanism for a magnetically suspended high-speed centrifugal blower according to claim 5, characterized in that: An operating ring (25) is provided at one end of the external threaded barrel (24), and the operating ring (25) is located at the end of the connecting pipe (11).

7. The air intake mechanism for a magnetically suspended high-speed centrifugal blower according to claim 5, characterized in that: A pressing ball head (26) is provided at one end of the external threaded cylinder (24), and the pressing ball head (26) is tightly connected to one end surface of the sealing ring (13).

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