CN2743585Y - Counter ratary type axial flow ventilation device - Google Patents
Counter ratary type axial flow ventilation device Download PDFInfo
- Publication number
- CN2743585Y CN2743585Y CN 200420063598 CN200420063598U CN2743585Y CN 2743585 Y CN2743585 Y CN 2743585Y CN 200420063598 CN200420063598 CN 200420063598 CN 200420063598 U CN200420063598 U CN 200420063598U CN 2743585 Y CN2743585 Y CN 2743585Y
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- CN
- China
- Prior art keywords
- axial flow
- counter
- blower fan
- rotating axial
- slip ring
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- Expired - Fee Related
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Abstract
The utility model relates to a counter rotary type axial flow ventilation device. The full pressure efficiency of the traditional axial flow ventilation device is severely impacted because that the all the rotary air current is difficult to conform into the axial exhaust, and high wind pressure, high wind, and low noise cannot be realized because of the existence of serious aerodynamic losses and vibration noise for the limitation in the traditional mechanical design level in the overall design. The counter rotary type axial flow ventilation device, which consists of a current collector 1 and a closed type baffle wall cavity 5 with a cooling function, is characterized in that the current collector 1 is connected with a primary draught fan 2, the primary draught fan 2 is connected with a secondary draught fan 3, and the secondary draught fan 3 is connected with a diffuser 4. The utility model is used for the ventilation of the places where burning and explosion easily happen such as coal mines, tunnels, other mines, chemical plants, power stations, etc.
Description
Technical field: the utility model relates to a kind of counter-rotating axial flow fan device.
Background technique:, have a strong impact on total pressure efficiency though, be difficult to swirling eddy all is integrated into axial exhaust because traditional axial-flow blower is equipped with stator blade.General arrangement also is confined to traditional Machine Design level, has serious aerodynamic loss and vibration noise, can't realize high blast, high air quantity, low noise.
Summary of the invention: the purpose of this utility model provides a kind of counter-rotating axial flow fan device.
Above-mentioned purpose realizes by following technological scheme:
The counter-rotating axial flow fan device, its composition comprises: slip ring and the sealed mode that possesses refrigerating function are every the stream chamber, and described slip ring links to each other with the one-level blower fan, and described one-level blower fan links to each other with the secondary blower fan, and described secondary blower fan links to each other with Diffuser.
Above-mentioned counter-rotating axial flow fan device, described slip ring has streamlined intake duct, in the described slip ring rectifier is housed, and has the new distinguished and admirable inlet of aerofoil profile in the described slip ring.
Above-mentioned counter-rotating axial flow fan device, described one-level blower fan and secondary blower fan are equipped with the impeller assembly respectively, on the described impeller assembly blade are housed, and the corresponding housing of described impeller assembly has the safety protection cover outward.
Above-mentioned counter-rotating axial flow fan device has the rectification current stabilizer in the described Diffuser, have the new distinguished and admirable inlet of aerofoil profile in the described Diffuser.
Above-mentioned counter-rotating axial flow fan device, described airflow path cross-section area are the best of breed that enlarges gradually from A-P.
Above-mentioned counter-rotating axial flow fan device, described impeller assembly upward arrow direction is a discharge directions.
This technological scheme has following beneficial effect:
1. the aviation aerodynamic design theory of the airplane engine of the utility model application of advanced and propeller cavitation adopts consummate aircraft manufacturing technology, has realized appropriate design and superior manufacturing.
2. selection of the present utility model and manufacturing process meet relative national standards fully, and the match materials scheme of science has been adopted in blade and air channel, stops to produce friction spark, guarantees safety.
3. it is theoretical that the utility model is quoted the airplane design containing, is provided with the outer shroud protective gear, to guarantee containing the Security that has improved fan operation greatly because of unexpected factor causes the safety of blade breakage.
4. the utility model aeroperformance does not have hump, no surge, and blast is steady.
5. the utility model compact structure, security maintenance is convenient.
6. the utility model blade installation angle is adjustable, so as to changing air quantity, blast, makes blower fan be in optimum Working all the time.
7. the utility model impeller assembly has adopted airplane engine gas compressor supercharging principle step by step and both stage impellers to revolving structure, has abandoned the rear guide vane of traditional axial-flow blower, makes second level impeller have the stator blade function of common shaft flow fan concurrently.Realized that air-flow does not have the pure axial exhaust that rotates in a circumferential direction, eliminated traditional axial-flow blower, realized traditional common blower fan be beyond one's reach high blast, high air quantity, high efficiency, low noise because stator exists formed flow losses and vibration noise.
8. the highest total pressure efficiency of the utility model can reach 84%, the efficient region broadness, and the working zone of total pressure efficiency more than 70% accounts for more than 60%.Blower fan also can guarantee to work in high efficiency region when the mine conditions of manufacture changes.
Description of drawings: accompanying drawing 1 is the structural representation of this product.
Accompanying drawing 2 is structural representations of slip ring.
Accompanying drawing 3 is A-A views of slip ring.
Accompanying drawing 4 is B-B views of slip ring.
Accompanying drawing 5 is impeller assembly structure schematic representation.
Accompanying drawing 6 is structural representations of Diffuser.
Accompanying drawing 7 is C-C views of Diffuser.
Below in conjunction with the description of drawings embodiment:
Embodiment 1:
The counter-rotating axial flow fan device, its composition comprises: slip ring 1 and the sealed mode that possesses refrigerating function are every stream chamber 5, described slip ring 1 links to each other with one-level blower fan 2, and described one-level blower fan 2 links to each other with secondary blower fan 3, and described secondary blower fan 3 links to each other with Diffuser 4.
Embodiment 2:
Above-mentioned counter-rotating axial flow fan device, described slip ring 1 has streamlined intake duct 7, in the described slip ring 1 rectifier 6 is housed, and has the new distinguished and admirable inlet 8 of aerofoil profile in the described slip ring 1.
Embodiment 3:
Above-mentioned counter-rotating axial flow fan device, described one-level blower fan 2 and secondary blower fan 3 are equipped with impeller assembly 9 respectively, on the described impeller assembly 9 blade 10 are housed, and described impeller assembly 9 corresponding housings have safety protection cover 11 outward.
Embodiment 4:
Above-mentioned counter-rotating axial flow fan device has rectification current stabilizer 12 in the described Diffuser 4, has the new distinguished and admirable inlet 8 of aerofoil profile in the described Diffuser 4.
Embodiment 5:
Above-mentioned counter-rotating axial flow fan device, described airflow path 13 cross-section areas are the best of breed that enlarges gradually from A-P.
Embodiment 6:
Above-mentioned counter-rotating axial flow fan device, described impeller assembly 9 upward arrows 14 directions are discharge directions.
Embodiment 7:
Above-mentioned counter-rotating axial flow fan device, described one-level blower fan 2 and secondary blower fan 3 are driven by the anti-explosion motor of same model same specification respectively, the shaft extension end of two motors is installed relatively, one group of impeller assembly is installed on every shaft extension, it is opposite to form two groups of leaf curling directions, sense of rotation is opposite, the airflow direction unanimity to revolving structure.
Claims (6)
1. counter-rotating axial flow fan device, its composition comprises: slip ring and the sealed mode that possesses refrigerating function are every the stream chamber, it is characterized in that: described slip ring links to each other with the one-level blower fan, and described one-level blower fan links to each other with the secondary blower fan, and described secondary blower fan links to each other with Diffuser.
2. counter-rotating axial flow fan device according to claim 1 is characterized in that: described slip ring has streamlined intake duct, in the described slip ring rectifier is housed, and has the new distinguished and admirable inlet of aerofoil profile in the described slip ring.
3. counter-rotating axial flow fan device according to claim 1; it is characterized in that: described one-level blower fan and secondary blower fan are equipped with the impeller assembly respectively; on the described impeller assembly blade is housed, the corresponding housing of described impeller assembly has the safety protection cover outward.
4. counter-rotating axial flow fan device according to claim 1 is characterized in that: have the rectification current stabilizer in the described Diffuser, have the new distinguished and admirable inlet of aerofoil profile in the described Diffuser.
5. counter-rotating axial flow fan device according to claim 1 is characterized in that: described airflow path cross-section area is the best of breed that enlarges gradually from A-P.
6. counter-rotating axial flow fan device according to claim 3 is characterized in that: described impeller assembly upward arrow direction is a discharge directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063598 CN2743585Y (en) | 2004-10-19 | 2004-10-19 | Counter ratary type axial flow ventilation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063598 CN2743585Y (en) | 2004-10-19 | 2004-10-19 | Counter ratary type axial flow ventilation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2743585Y true CN2743585Y (en) | 2005-11-30 |
Family
ID=35633604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420063598 Expired - Fee Related CN2743585Y (en) | 2004-10-19 | 2004-10-19 | Counter ratary type axial flow ventilation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2743585Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104903589A (en) * | 2013-01-11 | 2015-09-09 | 开利公司 | Shrouded axial fan with casing treatment |
| CN108361224A (en) * | 2018-03-14 | 2018-08-03 | 上海交通大学 | The equivalent axial flow blower aerofoil profile of forward and reverse rotation aerodynamic property retention |
| CN113864210A (en) * | 2021-10-19 | 2021-12-31 | 扎赉诺尔煤业有限责任公司 | a fan assembly |
-
2004
- 2004-10-19 CN CN 200420063598 patent/CN2743585Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104903589A (en) * | 2013-01-11 | 2015-09-09 | 开利公司 | Shrouded axial fan with casing treatment |
| CN104903589B (en) * | 2013-01-11 | 2018-09-07 | 开利公司 | There is cover aerofoil fan using treated casing |
| US10190601B2 (en) | 2013-01-11 | 2019-01-29 | Carrier Corporation | Shrouded axial fan with casing treatment |
| CN108361224A (en) * | 2018-03-14 | 2018-08-03 | 上海交通大学 | The equivalent axial flow blower aerofoil profile of forward and reverse rotation aerodynamic property retention |
| CN113864210A (en) * | 2021-10-19 | 2021-12-31 | 扎赉诺尔煤业有限责任公司 | a fan assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051130 Termination date: 20111019 |