CN221053945U - Three-impeller fan - Google Patents
Three-impeller fan Download PDFInfo
- Publication number
- CN221053945U CN221053945U CN202322341831.2U CN202322341831U CN221053945U CN 221053945 U CN221053945 U CN 221053945U CN 202322341831 U CN202322341831 U CN 202322341831U CN 221053945 U CN221053945 U CN 221053945U
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- China
- Prior art keywords
- impeller
- dynamic
- static
- fan
- dynamic impeller
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- 230000003068 static effect Effects 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000000889 atomisation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a three-impeller fan, wherein an air inlet is formed in the center of one side of a shell, an air inlet is formed in the top of the shell, a panel is vertically arranged in an inner cavity of the shell, a static impeller is fixed in a central opening of the panel, a first dynamic impeller and a second dynamic impeller are coaxially arranged on two sides of the static impeller, the distance between the first dynamic impeller and the static impeller is larger than the distance between the second dynamic impeller and the static impeller, the first dynamic impeller and the second dynamic impeller rotate, and the static impeller does not rotate. When the air flow outside the shell sequentially passes through the first dynamic impeller, the static impeller and the second dynamic impeller through the air inlet, the air pressure is improved twice, the air pressure formed by the air flow channel at the second dynamic impeller is larger than the air pressure formed by the air flow channel at the first dynamic impeller, the air pressure of the air flow discharged from the air outlet is about more than 2 times of the air pressure of the air flow discharged from the high-pressure fan with the same power, the size of the fan is 2/3 of the size of the fan with the same air pressure, and the placing space is saved.
Description
Technical Field
The utility model relates to the field of fans, in particular to a three-impeller fan.
Background
The fan is a device for improving the pressure of gas and discharging the gas by means of the input mechanical energy, is widely applied to the fields of factories, mines, cooling towers, vehicles and the like to realize air supply, dust discharge and cooling, such as a fan of an air overflow dyeing machine, and is used for supplying air to an atomization chamber so that the atomization chamber can dye cloth by utilizing atomized dye sprayed by a nozzle, and the existing fan for supplying air to the large-scale device cannot simultaneously meet the requirements of providing larger air supply pressure and smaller occupied area.
Disclosure of utility model
The application provides a three-impeller fan with reasonable structure, which is characterized in that a static impeller and two dynamic impellers arranged on two sides of the static impeller are arranged in the shell along the vertical direction, and the air pressure is improved twice under the action of the two dynamic impellers, so that the air pressure requirement is met, and the structure is more compact and the occupied area is smaller.
The technical scheme and the corresponding technical effects adopted by the utility model are as follows:
A three-impeller fan is characterized in that an air inlet is formed in the center of one side of a shell, an air inlet is formed in the top of the shell, a panel is vertically arranged in an inner cavity of the shell, a static impeller is fixed in a central opening of the panel, a first dynamic impeller and a second dynamic impeller are coaxially arranged on two sides of the static impeller, the distance between the first dynamic impeller and the static impeller is larger than that between the second dynamic impeller and the static impeller, the first dynamic impeller and the second dynamic impeller rotate, and the static impeller does not rotate.
As a further improvement of the above technical scheme:
The motor is installed to the opposite side of casing, and the transmission shaft of motor sets up along the radial direction of casing, and the transmission shaft passes second dynamic impeller, static impeller and first dynamic impeller's centre bore in proper order, and motor drive transmission shaft drives first dynamic impeller and second dynamic impeller and syntropy, the same speed rotation.
The first dynamic impeller is provided with a plurality of arc ribs along the central annular array, and the central angle formed between any two adjacent arc ribs is the same.
The second dynamic impeller is provided with a plurality of linear ribs along the central annular array, and the central angle formed between any two adjacent linear ribs is the same.
The static impeller is provided with a plurality of arc ribs along the central annular array, and the central angle formed between any two adjacent arc ribs is the same.
The first dynamic impeller and the second dynamic impeller are the same size and have diameters smaller than the diameter of the static impeller.
After the air flow outside the shell sequentially passes through the first dynamic impeller, the static impeller and the second dynamic impeller through the air inlet, the air pressure is improved twice, the air pressure formed by the air flow channel at the second dynamic impeller is larger than the air pressure formed by the air flow channel at the first dynamic impeller, the air pressure of the air flow discharged from the air outlet is about more than 2 times of the air pressure of the air flow discharged from the high-pressure fan with the same power, the size of the fan is 2/3 of the size of the fan with the same air pressure, the placing space is saved, and the static impeller enables the silencing effect of the fan to be better.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic diagram of the internal structure of the present utility model.
Fig. 3 is a cross-sectional view of a first dynamic impeller.
Fig. 4 is a cross-sectional view of a second dynamic impeller.
In the figure: 1. a motor; 2. a transmission shaft; 3. a housing; 4. an air inlet; 5. an air outlet; 6. a first dynamic impeller; 7. a second dynamic impeller; 8. a panel; 9. a static impeller.
Detailed Description
The following describes specific embodiments of the present utility model with reference to the drawings.
As shown in fig. 1 and 2, the three-impeller fan of the utility model is a centrifugal fan and comprises a volute casing 3 and a motor 1 arranged on one side of the casing 3, an air inlet 4 is arranged in the center of the other side of the casing 3, an air inlet 4 is arranged at the top, a panel 8 is vertically arranged in an inner cavity of the casing 3, a static impeller 9 is fixed on one side of the panel 8, a transmission shaft 2 of the motor 1 is arranged along the radial direction of the casing 3, the transmission shaft 2 sequentially penetrates through the center holes of the panel 8 and the static impeller 9 and extends out of the static impeller 9 for a certain distance, a first dynamic impeller 6 and a second dynamic impeller 7 are coaxially fixed on the transmission shaft 2 and on two sides of the static impeller 9, as shown in fig. 3 and 4, the first dynamic impeller 6 and the static impeller 9 are provided with a plurality of arc ribs along the central annular array, the central angle angles formed between any two adjacent arc ribs are the same, the second dynamic impeller 7 is provided with a plurality of linear ribs along the central annular array, the central angle angles formed between any two adjacent linear ribs are the same, the first dynamic impeller 6 and the second dynamic impeller 7 are the same in size, the diameters of the first dynamic impeller 6 and the second dynamic impeller 7 are smaller than the diameter of the static impeller 9, and the distance between the first dynamic impeller 6 and the static impeller 9 is larger than the distance between the second dynamic impeller 7 and the static impeller 9.
When in actual use, the motor 1 drives the transmission shaft 2 and drives the first dynamic impeller 6 and the second dynamic impeller 7 to rotate, the rotating speeds and the rotating directions of the two dynamic impellers are consistent, the static impeller 9 does not rotate, so that two air flow channels with unequal intervals and different wind pressures are formed in the shell 3, when the air flow outside the shell 3 sequentially passes through the first dynamic impeller 6, the static impeller 9 and the second dynamic impeller 7 through the air inlet 4, the wind pressure is lifted twice, the wind pressure formed by the air flow channels at the second dynamic impeller 7 is larger than the wind pressure formed by the air flow channels at the first dynamic impeller 6, the wind pressure of the air flow discharged by the air outlet 5 is about more than 2 times of the wind pressure of the air flow discharged by the high-pressure fan with the same power, the size of the fan is 2/3 of the same size of the wind pressure fan, the placing space is saved, and the static impeller 9 enables the mute effect of the fan to be better.
The above description is illustrative of the utility model and is not intended to be limiting, and the utility model may be modified in any form without departing from the spirit of the utility model.
Claims (6)
1. A three-impeller fan, characterized in that: the center of one side of the shell (3) is provided with an air inlet (4), the top of the shell is provided with an air inlet (4), a panel (8) is vertically arranged in an inner cavity of the shell (3), a static impeller (9) is fixedly arranged in a central opening of the panel (8), two sides of the static impeller (9) are coaxially provided with a first dynamic impeller (6) and a second dynamic impeller (7), the distance between the first dynamic impeller (6) and the static impeller (9) is larger than the distance between the second dynamic impeller (7) and the static impeller (9), the first dynamic impeller (6) and the second dynamic impeller (7) rotate, and the static impeller (9) does not rotate.
2. A tri-impeller fan in accordance with claim 1, wherein: the motor (1) is installed to the opposite side of casing (3), and the radial direction setting of casing (3) is followed to the transmission shaft (2) of motor (1), and transmission shaft (2) pass second dynamic impeller (7), static impeller (9) and the centre bore of first dynamic impeller (6) in proper order, and motor (1) drive transmission shaft (2) and drive first dynamic impeller (6) and second dynamic impeller (7) syntropy, same speed rotation.
3. A tri-impeller fan in accordance with claim 1, wherein: the first dynamic impeller (6) is provided with a plurality of arc ribs along the central annular array, and the central angle angles formed between any two adjacent arc ribs are the same.
4. A tri-impeller fan in accordance with claim 1, wherein: the second dynamic impeller (7) is provided with a plurality of linear ribs along the central annular array, and the central angle angles formed between any two adjacent linear ribs are the same.
5. A tri-impeller fan in accordance with claim 1, wherein: the static impeller (9) is provided with a plurality of arc ribs along the central annular array, and the central angle formed between any two adjacent arc ribs is the same.
6. A tri-impeller fan in accordance with claim 1, wherein: the first dynamic impeller (6) and the second dynamic impeller (7) are the same size and have a smaller diameter than the static impeller (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322341831.2U CN221053945U (en) | 2023-08-30 | 2023-08-30 | Three-impeller fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322341831.2U CN221053945U (en) | 2023-08-30 | 2023-08-30 | Three-impeller fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221053945U true CN221053945U (en) | 2024-05-31 |
Family
ID=91206040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322341831.2U Active CN221053945U (en) | 2023-08-30 | 2023-08-30 | Three-impeller fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221053945U (en) |
-
2023
- 2023-08-30 CN CN202322341831.2U patent/CN221053945U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |