CN220059950U - Leakage-proof centrifugal fan - Google Patents
Leakage-proof centrifugal fan Download PDFInfo
- Publication number
- CN220059950U CN220059950U CN202320395156.9U CN202320395156U CN220059950U CN 220059950 U CN220059950 U CN 220059950U CN 202320395156 U CN202320395156 U CN 202320395156U CN 220059950 U CN220059950 U CN 220059950U
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- Prior art keywords
- fan
- adjusting
- cover
- shell
- seal
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- 241000886569 Cyprogenia stegaria Species 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 238000012856 packing Methods 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims description 4
- 230000035515 penetration Effects 0.000 abstract description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a leakage-proof centrifugal fan, and relates to the technical field of centrifugal fans. Including the fan shell and install the motor in fan shell one side, the output shaft of motor runs through the fan shell and extends to the inside of fan shell, the outside of fan shell is equipped with the seal structure who seals output shaft fan shell support clearance, seal structure is including the seal cover that is T shape, be "worker" shape adjusting sleeve and be T shape by the output shaft and press the cover, the seal cover passes through bolted connection on the fan shell, the seal cover passes through adjusting screw connection adjusting sleeve, the adjusting sleeve passes through bolted connection and presses the cover, the seal cover, form the packing district that is filled with sealing packing between adjusting sleeve and the pressure cover. This prevent leaking formula centrifugal fan through setting up seal cover, pressure cover and adjusting sleeve, can seal the penetration department that the output shaft passed the fan shell, cooperates first sealing washer and second sealing washer, can ensure the leakproofness to avoid appearing the problem of gas leakage.
Description
Technical Field
The utility model relates to the technical field of centrifugal fans, in particular to a leakage-proof centrifugal fan.
Background
Centrifugal fans are machines that rely on input mechanical energy to raise gas pressure and discharge gas, and are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, and ventilation and air induction of boilers and industrial kilns, and the like.
The traditional centrifugal fan is generally single-side air inlet, centrifugal redirection is carried out through the impeller, and in the process that the air flow moves forwards along the axial direction, rotating gaps exist between part of the air flow and the fan shell through the rotating shaft, and the gaps can lead air at the air inlet to directly enter a flue without acceleration of the impeller or return to the air inlet from the gap after acceleration of the impeller, so that the circulation of the air can be disturbed.
Disclosure of Invention
The utility model provides a leakage-proof centrifugal fan, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a leak protection type centrifugal fan, includes the fan shell and installs the motor in fan shell one side, the output shaft of motor runs through the fan shell and extends to the inside of fan shell, the outside of fan shell is equipped with the seal structure with output shaft fan shell support clearance seal, seal structure including the seal cover that is T shape, be "worker" shape adjusting sleeve and be T shape that is passed by the output shaft press the cover, the seal cover passes through bolted connection on the fan shell, the seal cover passes through adjusting screw and connects adjusting sleeve, adjusting sleeve passes through bolted connection and presses the cover, seal cover, adjusting sleeve and press to form the packing district that packs there is sealing filler between the cover.
Further, the adjusting screw is connected with a locking nut in a threaded manner, a gasket is further sleeved on the adjusting screw, and a spring positioned between the gasket and one side, close to the fan shell, of the adjusting sleeve is sleeved on the adjusting screw.
Further, the outer periphery of the disc on one side, far away from the fan shell, of the adjusting sleeve is smaller than the diameter of the disc on one side, close to the fan shell, of the adjusting sleeve.
Further, a first sealing ring is arranged on the contact surface of the pressing sleeve and the adjusting sleeve and the contact surface of the sealing sleeve and the adjusting sleeve.
Further, a second sealing ring is arranged between one side of the sealing sleeve close to the fan housing and the fan housing.
Further, a mounting bracket is welded on one side of the fan housing, and the motor is mounted on the mounting bracket.
Compared with the prior art, the utility model provides a leakage-proof centrifugal fan, which has the following beneficial effects: this prevent leaking formula centrifugal fan through setting up seal cover, pressure cover and adjusting sleeve, can seal the penetration department that the output shaft passed the fan shell, cooperates first sealing washer and second sealing washer, can ensure the leakproofness to avoid appearing the problem of gas leakage.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic structural view of a seal structure of the present utility model;
fig. 3 is an enlarged schematic view of the present utility model at a.
In the figure: 1. a fan housing; 2. a motor; 3. an output shaft; 4. sealing sleeve; 5. an adjusting sleeve; 6. pressing the sleeve; 7. a filler zone; 8. adjusting a screw; 9. a lock nut; 10. a gasket; 11. a spring; 12. a first seal ring; 13. a second seal ring; 14. and (5) mounting a bracket.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, the utility model discloses a leakage-proof centrifugal fan, which comprises a fan shell 1 and a motor 2 arranged on one side of the fan shell 1, wherein an output shaft 3 of the motor 2 extends to the inside of the fan shell 1 through the fan shell 1, a sealing structure for sealing a gap between the output shaft 3 and a bracket of the fan shell 1 is arranged on the outer side of the fan shell 1, the sealing structure comprises a T-shaped sealing sleeve 4 penetrated by the output shaft 3, an I-shaped adjusting sleeve 5 and a T-shaped pressing sleeve 6, the sealing sleeve 4 is connected to the fan shell 1 through bolts, the sealing sleeve 4 is connected with the adjusting sleeve 5 through an adjusting screw 8, the adjusting sleeve 5 is connected with the pressing sleeve 6 through bolts, and a filling area 7 filled with sealing filler is formed among the sealing sleeve 4, the adjusting sleeve 5 and the pressing sleeve 6.
Specifically, the adjusting screw 8 is connected with a locking nut 9 in a threaded manner, a gasket 10 is further sleeved on the adjusting screw 8, and a spring 11 positioned between the gasket 10 and one side of the adjusting sleeve 5 close to the fan shell 1 is sleeved on the adjusting screw 8.
The outer periphery of the disc on the side, far away from the fan shell 1, of the adjusting sleeve 5 is smaller than the diameter of the disc on the side, close to the fan shell 1, of the adjusting sleeve 5.
In this embodiment, by providing the adjusting screw 8, the lock nut 9 and the spring 11, the setting of the adjusting sleeve 5 can be adjusted to control the degree to which the packing in the packing region 7 is compressed.
The adjusting sleeve 5 is composed of a cylinder and discs at two ends, the outside of the disc at one side of the adjusting sleeve 5 far away from the fan shell 1 is smaller than the diameter of the disc at one side of the adjusting sleeve 5 close to the fan shell 1, and the adjusting screw 8 is convenient to operate.
Specifically, a first sealing ring 12 is arranged on the contact surface of the pressing sleeve 6 and the adjusting sleeve 5 and the contact surface of the sealing sleeve 4 and the adjusting sleeve 5.
In this embodiment, the first seal ring 12 serves as an auxiliary seal.
Specifically, a second sealing ring 13 is arranged between one side of the sealing sleeve 4 close to the fan housing 1 and the fan housing 1.
In this embodiment, the second sealing ring 13 seals between the sealing sleeve 4 and the fan housing 1.
Specifically, a mounting bracket 14 is welded on one side of the fan housing 1, and the motor 2 is mounted on the mounting bracket 14.
To sum up, this leak protection formula centrifugal fan through setting up seal cover 4, pressure cover 5 and adjusting sleeve 6, can seal the penetration department that output shaft 3 passed fan casing 1, cooperates first sealing washer 12 and second sealing washer 13, can ensure the leakproofness to avoid appearing the problem of gas leakage.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a prevent leaking formula centrifugal fan, includes fan housing (1) and installs motor (2) in fan housing (1) one side, its characterized in that: the utility model provides a fan motor, including fan motor shell (1), fan motor shell (1) is connected in the inside that runs through fan motor shell (1), the outside of fan motor shell (1) is equipped with the seal structure with output shaft (3) fan motor shell (1) support clearance seal, and seal structure includes seal cover (4) that are T shape, be "worker" shape adjusting collar (5) and be T shape that are passed by output shaft (3) press cover (6), seal cover (4) pass through bolted connection on fan motor shell (1), seal cover (4) pass through adjusting screw (8) and connect adjusting collar (5), adjusting collar (5) pass through bolted connection and press cover (6), form packing area (7) that are filled with sealing filler between seal cover (4), adjusting collar (5) and the pressure cover (6).
2. The leakage-proof centrifugal fan according to claim 1, wherein: the adjusting screw (8) is connected with a lock nut (9) in a threaded manner, a gasket (10) is further sleeved on the adjusting screw (8), and a spring (11) positioned between the gasket (10) and one side of the adjusting sleeve (5) close to the fan shell (1) is sleeved on the adjusting screw (8).
3. The leakage-proof centrifugal fan according to claim 2, wherein: the outer periphery of the disc on one side, far away from the fan shell (1), of the adjusting sleeve (5) is smaller than the diameter of the disc on one side, close to the fan shell (1), of the adjusting sleeve (5).
4. The leakage-proof centrifugal fan according to claim 1, wherein: the contact surfaces of the pressing sleeve (6) and the adjusting sleeve (5) and the contact surfaces of the sealing sleeve (4) and the adjusting sleeve (5) are respectively provided with a first sealing ring (12).
5. The leakage-proof centrifugal fan according to claim 1, wherein: a second sealing ring (13) is arranged between one side of the sealing sleeve (4) close to the fan housing (1) and the fan housing (1).
6. The leakage-proof centrifugal fan according to claim 1, wherein: one side of the fan shell (1) is welded with a mounting bracket (14), and the motor (2) is mounted on the mounting bracket (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320395156.9U CN220059950U (en) | 2023-02-28 | 2023-02-28 | Leakage-proof centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320395156.9U CN220059950U (en) | 2023-02-28 | 2023-02-28 | Leakage-proof centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220059950U true CN220059950U (en) | 2023-11-21 |
Family
ID=88761649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320395156.9U Active CN220059950U (en) | 2023-02-28 | 2023-02-28 | Leakage-proof centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220059950U (en) |
-
2023
- 2023-02-28 CN CN202320395156.9U patent/CN220059950U/en active Active
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