CN210509723U - High-pressure centrifugal fan for special industry - Google Patents
High-pressure centrifugal fan for special industry Download PDFInfo
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- CN210509723U CN210509723U CN201921093202.XU CN201921093202U CN210509723U CN 210509723 U CN210509723 U CN 210509723U CN 201921093202 U CN201921093202 U CN 201921093202U CN 210509723 U CN210509723 U CN 210509723U
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Abstract
The utility model discloses a high-pressure centrifugal fan for special trade, impeller and the inverted triangle backup pad base of being connected including a spiral case, one and motor drive, the impeller includes a plurality of blade on wheel hub of many arc wheel caps, flat rim plate and equipartition, the blade be 16 little S type streamline board type blades, blade circumference equipartition welds between wheel cap, rim plate, forms with the wheel hub assembly, has adopted the utility model discloses a high-pressure centrifugal fan owing to adopt little S type streamline board type blade form, has adopted the width in different impeller exit diameter, air intake diameter, business turn over wind gap, the entrance angle and the exit angle of blade simultaneously through computer simulation operating mode, can satisfy under the different operating modes that the fan all has high efficiency, enlarges the type register that the fan covered.
Description
Technical Field
The invention relates to a centrifugal fan, in particular to a special high-efficiency low-noise high-pressure centrifugal fan for the steel cement industry, belonging to the technical field of fluid machinery manufacturing.
Background
The ventilator is used as important equipment in the industrial field of China, is widely applied to the fields of ferrous metallurgy, building materials, chemical industry, power stations, printing and dyeing, textile, building ventilation and the like, and plays an important role in the development of national economy.
With the rapid development of national economy, energy is in short supply and environmental pollution is increasingly serious. The country strongly treats the environmental pollution and removes the productivity. The combustion fan of steel plant, the primary dust-removing fan, the grate cooler of cement plant, the primary and secondary fans of power station, the blower of textile printing and dyeing, etc. all belong to low-flow high-pressure fan. In the domestic market, the main models widely applied to the field are 9-26,9-19, 9-12 and the like, and the models are traditional old models developed in the last century, are forward-inclined blades and have low efficiency, high noise and serious boundary layer separation. The technology of the high-efficiency low-noise low-flow high-pressure fan is also a difficult point of the industry, and the development of the high-efficiency low-noise low-flow high-pressure fan has great significance for the development of the economy of China.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model aims at providing a special type high-efficiency low-noise high-pressure centrifugal fan for the industry of steel and iron cement to solve the problems of low flow rate high-pressure fan inefficiency, high noise and the like in the industry.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a high-pressure centrifugal fan for special industry, includes a spiral case, an impeller and the inverted triangle backup pad base of being connected with motor drive, the impeller includes a plurality of blade on wheel hub of many arc wheel caps, dull and stereotyped rim plate and equipartition, the blade be 16 little S type streamline board type blades, blade circumference equipartition welds between wheel cap, rim plate, forms with the wheel hub assembly, the exit diameter of impeller is 660 ~ 680mm, the air intake diameter of impeller is 238 ~ 269mm, and the width of air intake department is 92 ~ 114mm, the air outlet department width of impeller is 44 ~ 48mm, the entrance angle of blade is 20 ~ 26.
The outlet angle of the blade is 67-73 degrees.
The outlet angle of the blade is 84-90 degrees.
The outlet angle of the blade is 92-98 degrees.
The base is a bent inverted triangular supporting plate structure.
Adopted the utility model discloses a high-pressure centrifugal fan owing to adopt little S type streamline plate type blade form, has adopted the width of different impeller exit diameter, air intake diameter, business turn over wind gap, the entrance angle and the exit angle of blade simultaneously through computer simulation operating mode, can satisfy under the different operating modes that the fan all has high efficiency, enlarges the type register that the fan covered.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the impeller of the present invention;
FIG. 3 is a schematic structural diagram of an impeller according to the first embodiment;
FIG. 4 is a schematic structural view of an impeller in the third embodiment;
fig. 5 is a schematic structural view of an impeller according to a second embodiment.
In the figure: 1-volute, 2-motor, 3-impeller, 4-base, 11-wheel cover, 12-wheel disc, 13-hub and 14-blade.
The specific implementation mode is as follows:
as shown in fig. 1-fig. 2, the utility model discloses a high pressure centrifugal fan for special industry, including a spiral case 1, one impeller 3 and the inverted triangle backup pad base 4 of being connected with the transmission of motor 2, impeller 3 includes a plurality of blade 14 on wheel hub 13 of many arc wheel cap 11, dull and stereotyped rim plate 12 and equipartition, its characterized in that blade 14 be 16 little S type streamline plate type blades, 14 circumference equipartition of blade welds between wheel cap 11, rim plate 12, forms with the assembly of wheel hub 13, the export diameter of impeller 3 is 660 ~ 680mm, the air intake diameter of impeller 3 is 238 ~ 269mm, and the width of air intake department is 92 ~ 114mm, the air outlet department width of impeller is 44 ~ 48mm, the entrance angle of blade 14 is 20 ~ 26.
The first embodiment is as follows: as shown in fig. 3, the exit angle of the vane 14 is 67 ° to 73 °. The S-shaped blade is relatively straight due to the small outlet angle, and the fan has the advantages of being high in efficiency and smooth in flow channel and is suitable for places such as air blowing and combustion supporting.
Example two: as shown in fig. 4, the exit angle of the vane 14 is 92 ° to 98 °. The S-shaped curvature of the blade is larger due to the larger outlet angle, and the fan has the characteristic of high pressure coefficient and is suitable for places with small flow and higher pressure requirements.
Example three: as shown in fig. 5, the exit angle of the vane 14 is 84 ° to 90 °, which is a quasi-radial impeller. The fan with the outlet angle has the characteristics of low noise, high efficiency and good wear resistance, and is suitable for places such as combustion supporting, air blasting, dust removal and the like.
Because the product series is the model simulation design, therefore to the through-flow part size such as impeller 3, air intake, spiral case 1 with compare the series of products of enlargiing or reducing and making, all be in the utility model discloses a within the scope of protection.
Claims (5)
1. The utility model provides a high-pressure centrifugal fan for special industry, includes a spiral case (1), an impeller (3) and inverted triangle backup pad base (4) of being connected with motor (2) transmission, impeller (3) include a plurality of blade (14) on wheel hub (13) of arc wheel cap (11), dull and stereotyped rim plate (12) and equipartition, its characterized in that blade (14) be 16 little S type streamline plate type blades, blade (14) circumference equipartition welds between wheel cap (11), rim plate (12), forms with wheel hub (13) assembly, the exit diameter of impeller (3) is 660 ~ 680mm, the air intake diameter of impeller (3) is 238 ~ 269mm, and the width of air intake department is 92 ~ 114mm, the air outlet department width of impeller is 44 ~ 48mm, the entrance angle of blade (14) is 20 ~ 26.
2. High-pressure centrifugal fan for special industries according to claim 1 characterized in that said blade (14) has an exit angle of 67 ° to 73 °.
3. High-pressure centrifugal fan for special industries according to claim 1 characterized in that said blade (14) outlet angle is 84 ° to 90 °.
4. High-pressure centrifugal fan for special industries according to claim 1 characterized in that said blade (14) outlet angle is 92 ° to 98 °.
5. The high-pressure centrifugal fan for special industries according to claim 1 is characterized in that said base (4) is a bent inverted triangular support plate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921093202.XU CN210509723U (en) | 2019-07-12 | 2019-07-12 | High-pressure centrifugal fan for special industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921093202.XU CN210509723U (en) | 2019-07-12 | 2019-07-12 | High-pressure centrifugal fan for special industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210509723U true CN210509723U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921093202.XU Active CN210509723U (en) | 2019-07-12 | 2019-07-12 | High-pressure centrifugal fan for special industry |
Country Status (1)
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| CN (1) | CN210509723U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734675A (en) * | 2020-06-16 | 2020-10-02 | 泛仕达机电股份有限公司 | Backward centrifugal wind wheel and centrifugal fan |
| CN112594213A (en) * | 2020-12-28 | 2021-04-02 | 浙江兴益风机电器有限公司 | Double-helix centrifugal fan impeller and manufacturing method thereof |
| CN114607624A (en) * | 2022-03-16 | 2022-06-10 | 惠州市艾美珈磁电技术股份有限公司 | Volute centrifugal fan |
-
2019
- 2019-07-12 CN CN201921093202.XU patent/CN210509723U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734675A (en) * | 2020-06-16 | 2020-10-02 | 泛仕达机电股份有限公司 | Backward centrifugal wind wheel and centrifugal fan |
| CN112594213A (en) * | 2020-12-28 | 2021-04-02 | 浙江兴益风机电器有限公司 | Double-helix centrifugal fan impeller and manufacturing method thereof |
| CN114607624A (en) * | 2022-03-16 | 2022-06-10 | 惠州市艾美珈磁电技术股份有限公司 | Volute centrifugal fan |
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Address after: 312300 No. 1818, Renmin West Road, Dongguan Street, Shangyu District, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Shangfeng high tech special wind industry Co.,Ltd. Address before: 312300 No. 1818 Renmin West Road, Shangyu District, Zhejiang, Shaoxing Patentee before: ZHEJIANG SHANGFENG HI-TECH SPECIALIZED WIND INDUSTRIAL Co.,Ltd. |