CN201615072U - Two-stage disrotatory bidirectional jetting blower - Google Patents
Two-stage disrotatory bidirectional jetting blower Download PDFInfo
- Publication number
- CN201615072U CN201615072U CN201020112134XU CN201020112134U CN201615072U CN 201615072 U CN201615072 U CN 201615072U CN 201020112134X U CN201020112134X U CN 201020112134XU CN 201020112134 U CN201020112134 U CN 201020112134U CN 201615072 U CN201615072 U CN 201615072U
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- motor
- blower
- impeller
- blower fan
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Abstract
The utility model relates to a two-stage disrotatory bidirectional jetting blower which is characterized in that a blower seat includes a front blower seat and a rear blower seat in flanged connection; sound dampers are arranged at the front end of the front blower seat and the rear end of the rear blower seat; a nozzle is arranged at the port of each sound damper; a front guide vane bracket and a rear guide vane bracket are mounted on the inner walls of the front blower seat and the rear blower seat; a fore stage motor and a post stage motor are mounted on the front guide vane bracket and the rear guide vane bracket; the directions of the output shafts of the fore stage motor and the post stage motor are opposite; a front impeller and a rear impeller are mounted on the output shafts of the fore stage motor and the post stage motor; the front impeller and the rear impeller rotate in opposite directions; and a streamline cowling is directly mounted at the tail ends of the fore stage motor and the post stage motor. Therefore, the two impellers of the jetting blower rotate in opposite directions, and the impellers perform two-stage work to air entering into the blower, so as to obtain pushing force higher than that of single-stage blower; the disrotatory impellers has smaller fluid field loss, so that the disrotatory two-stage jetting blower has higher ventilation efficiency and remarkable energy saving effect; and the utility model has the advantages of simple structure and easy manufacture.
Description
Technical field
The utility model relates to a kind of ventilator, and especially a kind of two-stage is to revolving the bidirectional jet blower fan.
Background technique
Jet blower is mainly used in tunnel longitudinal ventilation system, and jet blower generally is suspended on tunnel top or is installed in the both sides, tunnel, does not take traffic areas, does not need to build in addition the air channel, at the bottom of the civil engineering cost, is a kind of air vent mode of very economical.During jet blower work, can from given motor power, produce higher thrust.At this moment, the part of total air mass flow in the tunnel of flowing through is sucked by jet blower, after the impeller acting, by outlet ejection at a high speed.Based on the principle of impacting transmission, high velocity air is passed to air in the tunnel with energy, and the air that promotes in the tunnel is mobile forward together.When flowing velocity decayed to a certain value, next group jet blower worked on.Realized like this sucking fresh air, discharged vitiated air from outlet end from the tunnel entrance end.Known tunnel longitudinal ventilation system all adopts the one-level jet blower, this jet blower structure is: the blower fan seat is tubular, in blower fan seat front end and back end the tubular silencing apparatus is installed, at the silencing apparatus port nozzle is installed, at blower fan seat inwall the stator support is installed, on the stator support, motor is installed, on motor front end output shaft, impeller is installed, be provided with cowling in the motor front-end and back-end.There is following shortcoming in this jet blower: (1) is under the certain situation of jet blower diameter, one-level jet blower separate unit thrust is less, as increasing separate unit jet blower thrust, can only adopt big motor, this can increase the blower fan diameter, and increase the restriction that the blower fan diameter is subjected to the tunnel limit for height, implement comparatively difficulty.(2) in long tunnel, this one-level jet blower, the jet blower platform number that needs is more, and this not only installs trouble, and has increased the breakdown maintenance point of jet blower, increases maintenance cost.
Summary of the invention
The utility model provides the big two-stage of a kind of thrust to revolving the bidirectional jet blower fan for solving the technical problem that exists in the known technology.
The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of two-stage is to revolving the bidirectional jet blower fan, comprise tubular blower fan seat, be installed in the tubular silencing apparatus of blower fan seat front end and back end, be installed in the nozzle of silencing apparatus port, be installed in the stator support of blower fan seat inwall, be installed in the motor on the stator support, be installed in the impeller on the motor front end output shaft, and the cowling that is arranged on the motor front-end and back-end, described blower fan seat is two preceding blower fan seat and after wind supports that mutual flange connects, described stator support is preceding stator support and rear guide vane support, described motor is to be installed on the preceding stator support respectively and prime motor on the rear guide vane support and back level motor, the prime motor output shaft is relative with the direction of back level motor output shaft, described impeller is preceding impeller and the back impeller that is installed in respectively on prime motor output shaft and the back level motor output shaft, preceding impeller and back impeller be backward rotation each other, described cowling is streamlined, and cowling is directly installed on prime motor and back level motor tail end.
The utility model can also adopt following technological scheme:
Described motor is a single-speed motor.
Described motor is a double-speed motor, is used for the multi-operating mode demand.
Described motor is that variable-frequency motor connects the variable frequency regulating speed control cabinet, is used for the variable working condition demand.
Advantage and the good effect that the utlity model has are:
Because the blower fan seat is preceding blower fan seat and after wind support, stator support and rear guide vane support before in preceding blower fan seat and after wind support, being equipped with, relative prime motor of output shaft direction and back level motor are installed on preceding stator support and rear guide vane support, impeller and back impeller before on prime motor output shaft and back level motor output shaft, being equipped with, preceding impeller and back impeller be backward rotation each other, two of jet blower impeller runnings in the other direction each other like this, impeller carries out the two-stage acting to the air that enters blower fan, thereby obtains the thrust higher than simple fan.Because the loss of contra-rotating impeller flow field is less, therefore has higher drafting efficiency to revolving the two stage jet blower fan, energy-saving effect is obvious; The utility model also has advantage simple in structure, that be easy to make in addition.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, nozzle; 2, silencing apparatus; 3, cowling; 4, preceding blower fan seat; 5, prime motor; 6, preceding impeller; 7, back impeller; 8, back level motor; 9, after wind support; 10, cowling; 11, silencing apparatus; 12, nozzle; 13, rear guide vane support; 14, output shaft; 15, output shaft; 16, preceding stator support.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
As shown in Figure 1, the preceding blower fan seat 4 and the after wind support 9 of two mutual flange connections are tubular, at preceding blower fan seat front end and rear fan base rear end tubular silencing apparatus 2,11 is installed, at the silencing apparatus port nozzle 1,12 is installed, stator support 16 and rear guide vane support 13 before blower fan seat and after wind inboard wall of base are equipped with before being installed in, prime motor 5 and back level motor 8 are installed on preceding stator support and rear guide vane support, prime motor output shaft 15 is relative with the direction of back level motor output shaft 14, and described motor is a single-speed motor; Also can match double-speed motor, be applicable to multi-operating mode demand (double-speed motor can realize that when there was strong natural wind in the tunnel, the motor low cruise can reduce operating cost); Also optional distribution transforming motor frequently connects the variable frequency regulating speed control cabinet, is applicable to variable working condition demand (satisfying the requirement that tunnel ventilation changes ventilation).Impeller 6 and back impeller 7 before being equipped with on prime motor output shaft and back level motor output shaft, preceding impeller and back impeller be backward rotation each other.At prime motor and back level motor tail end cowling 3,10 is installed, this cowling is streamlined.Like this, because the blower fan seat is preceding blower fan seat and after wind support, stator support and rear guide vane support before in preceding blower fan seat and after wind support, being equipped with, relative prime motor of output shaft direction and back level motor are installed on preceding stator support and rear guide vane support, impeller and back impeller before on prime motor output shaft and back level motor output shaft, being equipped with, preceding impeller and back impeller be backward rotation each other, two of jet blower impeller runnings in the other direction each other like this, impeller carries out the two-stage acting to the air that enters blower fan, thereby obtains the thrust higher than simple fan.Because the loss of contra-rotating impeller flow field is less, therefore has higher drafting efficiency to revolving the two stage jet blower fan, energy-saving effect is obvious; The utility model also has advantage simple in structure, that be easy to make in addition.
Claims (4)
1. a two-stage is to revolving the bidirectional jet blower fan, comprise tubular blower fan seat, be installed in the tubular silencing apparatus of blower fan seat front end and back end, be installed in the nozzle of silencing apparatus port, be installed in the stator support of blower fan seat inwall, be installed in the motor on the stator support, be installed in the impeller on the motor front end output shaft, and the cowling that is arranged on the motor front-end and back-end, it is characterized in that: described blower fan seat is two preceding blower fan seat and after wind supports that mutual flange connects, described stator support is preceding stator support and rear guide vane support, described motor is to be installed on the preceding stator support respectively and prime motor on the rear guide vane support and back level motor, the prime motor output shaft is relative with the direction of back level motor output shaft, described impeller is preceding impeller and the back impeller that is installed in respectively on prime motor output shaft and the back level motor output shaft, preceding impeller and back impeller be backward rotation each other, described cowling is streamlined, and cowling is directly installed on prime motor and back level motor tail end.
2. two-stage according to claim 1 is characterized in that revolving the bidirectional jet blower fan: described motor is a single-speed motor.
3. two-stage according to claim 1 is characterized in that revolving the bidirectional jet blower fan: described motor is a double-speed motor, is used for the multi-operating mode demand.
4. two-stage according to claim 1 is characterized in that revolving the bidirectional jet blower fan: described motor is that variable-frequency motor connects the variable frequency regulating speed control cabinet, is used for the variable working condition demand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020112134XU CN201615072U (en) | 2010-02-11 | 2010-02-11 | Two-stage disrotatory bidirectional jetting blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020112134XU CN201615072U (en) | 2010-02-11 | 2010-02-11 | Two-stage disrotatory bidirectional jetting blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201615072U true CN201615072U (en) | 2010-10-27 |
Family
ID=43001441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020112134XU Expired - Fee Related CN201615072U (en) | 2010-02-11 | 2010-02-11 | Two-stage disrotatory bidirectional jetting blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201615072U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305215A (en) * | 2011-08-03 | 2012-01-04 | 孝感学院 | Two-stage disrotatory axial-flow-type main ventilator for mining |
| WO2020077814A1 (en) * | 2018-10-15 | 2020-04-23 | 广东美的白色家电技术创新中心有限公司 | Counter-rotating fan |
-
2010
- 2010-02-11 CN CN201020112134XU patent/CN201615072U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305215A (en) * | 2011-08-03 | 2012-01-04 | 孝感学院 | Two-stage disrotatory axial-flow-type main ventilator for mining |
| WO2020077814A1 (en) * | 2018-10-15 | 2020-04-23 | 广东美的白色家电技术创新中心有限公司 | Counter-rotating fan |
| KR20210046800A (en) * | 2018-10-15 | 2021-04-28 | 광둥 미디어 화이트 홈 어플라이언스 테크놀로지 이노베이션 센터 컴퍼니 리미티드 | Double inverted fan |
| US11506211B2 (en) | 2018-10-15 | 2022-11-22 | Guangdong Midea White Home Appliance Technology Innovation Center Co., Ltd. | Counter-rotating fan |
| KR102518997B1 (en) | 2018-10-15 | 2023-04-05 | 광둥 미디어 화이트 홈 어플라이언스 테크놀로지 이노베이션 센터 컴퍼니 리미티드 | double inverted fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20150211 |
|
| EXPY | Termination of patent right or utility model |