CN221096876U - Axial flow fan with seal structure - Google Patents
Axial flow fan with seal structure Download PDFInfo
- Publication number
- CN221096876U CN221096876U CN202322888248.3U CN202322888248U CN221096876U CN 221096876 U CN221096876 U CN 221096876U CN 202322888248 U CN202322888248 U CN 202322888248U CN 221096876 U CN221096876 U CN 221096876U
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- blade
- motor
- fan
- axial flow
- flow fan
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- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000011324 bead Substances 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model relates to an axial flow fan with a sealing structure, which belongs to the technical field of fans and comprises a shell, wherein the shell comprises a first shell and a second shell which are communicated with each other, a first motor is fixedly arranged in the first shell, and a second motor is fixedly arranged in the second shell; be provided with first blade on the first motor, the second motor is two output shaft motors, be equipped with second blade and third blade on the two output shafts of second motor respectively, be provided with the deep bead between first blade and the second blade, deep bead and first casing fixed connection, first blade is angularly adjustable blade. The wind shield is arranged in the utility model and is used for blocking the backflow of the rotary air flow, reducing the air loss of the fan and improving the air supply efficiency of the fan.
Description
Technical Field
The utility model belongs to the technical field of fans, and particularly relates to an axial flow fan with a sealing structure.
Background
At present, the fan is a universal machine widely applied to various industries of national economy. The fan blade is driven to rotate in a mode of driving a plurality of motors of the conventional fan, and the fan blade is used for improving the gas pressure so as to achieve the purpose of exhausting gas. In the current axial flow fan application process, in order to improve pressure, the axial flow fan is applied to a ventilation system with longer conveying distance or larger system resistance, and a multi-stage combination mode is usually adopted, and the axial flow fan is usually designed into a series structure or a counter-rotating structure. Because the rotating directions of adjacent blades of the counter-rotating fan are opposite, the generated rotating air flow easily flows back from the gaps of the blades, and the air quantity is wasted, an axial-flow fan with a sealing structure is required to be designed so as to solve the problems in the prior art.
Disclosure of utility model
The utility model aims to solve the technical problems that: overcomes the defects in the prior art and provides an axial flow fan with a sealing structure.
In order to solve the problems, the utility model adopts the following technical scheme:
The axial flow fan with the sealing structure comprises a shell, wherein the shell comprises a first shell and a second shell which are communicated with each other, a first motor is fixedly arranged in the first shell, and a second motor is fixedly arranged in the second shell; be provided with first blade on the first motor, the second motor is two output shaft motors, be equipped with second blade and third blade on the two output shafts of second motor respectively, be provided with the deep bead between first blade and the second blade, deep bead and first casing fixed connection, first blade is angularly adjustable blade.
Further, the first blade comprises a fan blade and a blade shaft, the blade shaft is connected with the fan blade shaft, and the blade shaft is rotationally connected with the output shaft of the first motor.
Further, the wind deflector is disposed at a blade top portion near the first blade.
Further, the wind shield is a rotary structure formed by two L-shaped plates.
Further, a guide vane is arranged between the first vane and the second vane.
Further, the angle of the guide vane is adjustable.
Further, the first motor is a three-phase asynchronous motor, and the power of the first motor is adjustable.
Further, the second motor is a three-phase asynchronous motor.
Compared with the prior art, the utility model has the beneficial effects that:
1. The utility model provides an axial flow fan with a sealing structure, wherein a wind shield is arranged in the axial flow fan and used for blocking backflow of rotary air flow, reducing air quantity loss of the fan and improving air supply efficiency of the fan.
2. The utility model provides an axial flow fan with a sealing structure, wherein the first-stage blades of the fan adopt blades with adjustable angles, so that the air quantity of the axial flow fan can be adjusted, and the applicability of the fan is improved.
Drawings
FIG. 1 is a schematic view of the structure of the device of the present utility model.
In the figure: 1. the wind deflector comprises a shell, 2, a first shell, 3, a second shell, 4, a first motor, 5, a second motor, 6, a first blade, 7, a second blade, 8, a third blade, 9, a wind deflector, 10 and a guide blade.
Detailed Description
The following examples are given for the purpose of illustration only and are not intended to limit the scope of the utility model, as it is apparent that the examples described are only some, but not all, of the examples which a person of ordinary skill in the art would achieve without inventive faculty.
As shown in fig. 1, the utility model provides an embodiment of an axial flow fan with a sealing structure, which comprises a casing 1, wherein the casing 1 comprises a first casing 2 and a second casing 3 which are communicated with each other, a first motor 4 is fixedly arranged in the first casing 2, and a second motor 5 is fixedly arranged in the second casing 3; be provided with first blade 6 on the first motor 4, second motor 5 is two output shaft motors, be equipped with second blade 7 and third blade 8 on the two output shafts of second motor 5 respectively, be provided with deep bead 9 between first blade 6 and the second blade 7, deep bead 9 and first casing 2 fixed connection, first blade 6 is the angularly adjustable blade. The first blade 6 and the second blade 7 are combined into a disrotatory fan, a certain distance is reserved between the first blade 6 and the second blade 7, the air flow moves towards the outlet direction along the shell 1 under the pressure of the fan, and the gap is reserved between the blades and the shell 1, so that the air flow is easy to flow back from the gap between the blades and the shell, and the air quantity is lost, therefore, the utility model is provided with the wind shield 9 for blocking the air flow flowing back from the gap between the blades. In the embodiment of the utility model, the wind deflector 9 is arranged near the blade top of the first blade 6. The wind guard 9 is a rotary structure formed by two L-shaped plates, and the wind guard 9 is arranged along the inner wall of the first casing in a surrounding manner. According to the fan, the first blade 6 adopts the angle-adjustable blade, so that the air quantity of the axial fan can be adjusted, and the applicability of the fan is improved.
As a further preferred embodiment, the first blade 6 comprises a blade and a blade shaft, the blade shaft being connected to the blade shaft, the blade shaft being rotatably connected to the output shaft of the first motor 4. In the embodiment of the utility model, the blade shaft of the first blade 6 is arranged in a vertical direction with the output shaft of the first motor 4, the blade shaft is movably connected with the output shaft of the first motor 4, and the angle adjustment of the first blade 6 is realized by adjusting the rotation of the blade shaft. In the embodiment of the utility model, the blade shaft and the output shaft of the first motor 4 can be manually adjusted in angle, and the angle can be automatically adjusted. For example, if the angle is manually adjusted, the blade shaft and the first motor 4 may be fixedly connected by bolts, and when the angle is required to be adjusted, the fixing bolts may be removed first, and then the angle is adjusted and then re-fixed by bolts. If the automatic angle adjustment is adopted, the automatic adjustment of the blade angle of the fan can be realized without stopping the fan. As a further preferable embodiment, the vane shaft is in transmission connection with the output shaft of the first motor 4 in a turbine worm mode, and a driving motor is arranged in the axial direction of the vane shaft and used for driving the turbine worm to rotate, so that the rotation of the vane shaft is realized, and the purpose of adjusting the vane angle is realized. As the automatic adjustment of the blade angle, other transmission modes can be adopted, for example, a motor is adopted to drive a crank arm to swing, and the other end of the crank arm is fixedly connected with a blade shaft, so that the rotation of the blade shaft is realized.
As a further preferred embodiment, a guide vane 10 is arranged between the first vane 6 and the second vane 7. In the embodiment of the utility model, the first blade 6 and the second blade 7 form a disrotatory fan structure, a guide blade 10 structure is additionally arranged between the first blade 6 and the second blade 7 and used for guiding the wind flow conveyed by the first blade 6, and the guide blade 10 is added between the second blade 7 for conveying at a better angle, so that the air quantity conveying efficiency between the disrotatory fan structures can be better adjusted. The guide vane 10 adopts a spiral arc-shaped structure, the guide vane 10 is fixed at the joint of the first casing 2 and the second casing 3, extends from the first vane 6 to the second vane 7, and the guide vane 10 is thickened from inside to outside in sequence. In the embodiment of the utility model, the guide vane 10 is arranged to guide the wind flow coming out of the first casing 2, so that the wind flow is guided in the second casing 3 better, the wind flow direction generated by the wind flow and the second vane 7 is kept all the time, and the influence of the cyclone on the wind flow direction is reduced.
As a further preferred embodiment, the angle of the guide vane 10 is adjustable. In the embodiment of the present utility model, the angle of the guide vane 10 may be adjusted in real time according to the angle adjustment of the first vane 6. The angle of the first blade 6 is adjusted, and the air quantity of the primary fan can be adjusted by matching with the angle adjustment of the guide blade 10.
As a further preferred embodiment, the first electric machine 4 is a three-phase asynchronous motor, and the power of the first electric machine 4 is adjustable. In the embodiment of the utility model, since the angles of the first blade 6 and the guide blade 10 are adjustable, the pressure of the air supply quantity of the first casing can be adjusted according to the angles of the first blade 6 and the guide blade 10, and at this time, the power of the first motor 4 can be adjusted to be suitable matched according to the pressure of the air supply quantity. As a further preferred embodiment, the first motor 4 is coupled with a frequency converter for adjusting the power level of the first motor 4. For example, under normal conditions, the power of the motor in the first casing is 30kw, the second motor drives two blades, and the power of the second motor is 45kw, but in the embodiment of the utility model, the power of the first motor 4 can be 30kw, 20kw or 45kw, and can be matched with motors with different powers under the condition of meeting the air supply quantity of the fan.
As a further preferred embodiment, the second motor 5 is a three-phase asynchronous motor.
The above embodiments are not intended to limit the present utility model, however, and the present utility model is not limited to the above examples, but is also intended to be within the scope of the present utility model.
Claims (8)
1. Axial fan with seal structure, including casing (1), its characterized in that:
The machine shell (1) comprises a first machine shell (2) and a second machine shell (3) which are communicated with each other, a first motor (4) is fixedly arranged in the first machine shell (2), and a second motor (5) is fixedly arranged in the second machine shell (3); be provided with first blade (6) on first motor (4), second motor (5) are two output shaft motors, be equipped with second blade (7) and third blade (8) on the two output shafts of second motor (5) respectively, be provided with deep bead (9) between first blade (6) and second blade (7), deep bead (9) and first casing (2) fixed connection, first blade (6) are angularly adjustable blade.
2. The axial flow fan with a sealing structure according to claim 1, wherein:
the first blade (6) comprises a fan blade and a blade shaft, the blade shaft is connected with the fan blade shaft, and the blade shaft is rotationally connected with an output shaft of the first motor (4).
3. The axial flow fan with a sealing structure according to claim 1, wherein:
The wind deflector (9) is arranged at the blade top close to the first blade (6).
4. The axial flow fan with a sealing structure according to claim 3, wherein:
The wind deflector (9) is of a rotary structure formed by two L-shaped plates, and the wind deflector (9) surrounds a circle along the inner wall of the first casing (2).
5. The axial flow fan with a sealing structure according to claim 1, wherein:
A guide vane (10) is arranged between the first vane (6) and the second vane (7).
6. The axial flow fan with a sealing structure according to claim 5, wherein:
The angle of the guide vane (10) can be adjusted.
7. The axial flow fan with a sealing structure according to claim 1, wherein:
The first motor (4) is a three-phase asynchronous motor, and the power of the first motor (4) is adjustable.
8. The axial flow fan with a sealing structure according to claim 1, wherein:
The second motor (5) is a three-phase asynchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322888248.3U CN221096876U (en) | 2023-10-26 | 2023-10-26 | Axial flow fan with seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322888248.3U CN221096876U (en) | 2023-10-26 | 2023-10-26 | Axial flow fan with seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221096876U true CN221096876U (en) | 2024-06-07 |
Family
ID=91311262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322888248.3U Active CN221096876U (en) | 2023-10-26 | 2023-10-26 | Axial flow fan with seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221096876U (en) |
-
2023
- 2023-10-26 CN CN202322888248.3U patent/CN221096876U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant |