CN214837424U - Axial flow draught fan wheel hub deposition sweeps device - Google Patents
Axial flow draught fan wheel hub deposition sweeps device Download PDFInfo
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- CN214837424U CN214837424U CN202121794739.6U CN202121794739U CN214837424U CN 214837424 U CN214837424 U CN 214837424U CN 202121794739 U CN202121794739 U CN 202121794739U CN 214837424 U CN214837424 U CN 214837424U
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- axial flow
- draught fan
- air
- hub
- wheel hub
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Abstract
The utility model discloses an axial flow draught fan wheel hub deposition sweeps device, including installing the crooked hollow tube on axial flow draught fan shell, the hollow tube directly connects at axial flow draught fan air outlet, and another is facing to the wheel hub back of axial flow draught fan. The hollow pipe air outlet section is divided into a plurality of branch pipes, and the branch pipe openings are uniformly distributed around the back surface of the hub of the axial flow draught fan. The air outlet is provided with a conical air nozzle. The air nozzle is in threaded connection with the air outlet. The tuyere is made of ceramic material. After the axial flow draught fan is started, the hollow pipe guides part of air from the air outlet of the axial flow draught fan to the back face of the hub of the axial flow draught fan, air flow is guided into each branch pipe at the air outlet section of the hollow pipe, and finally the air flow is uniformly blown to the back face of the hub of the axial flow draught fan through the air nozzles on each branch pipe. And the continuous purging prevents dust from gathering, and avoids the occurrence of hub vibration. When the air nozzle is abraded by high-speed airflow, the air nozzle can be replaced.
Description
Technical Field
The utility model relates to a thermal power equipment field, concretely relates to draught fan deposition sweeps device.
Background
Vibration is the important factor that influences boiler draught fan safe operation, no matter flue gas dust collecting equipment is electrostatic precipitator, dry dust collector is guarded against and is the water film dust remover, all there is certain deposition on draught fan impeller and the blade, dust thickness when the gathering reaches the certain degree, the draught fan opens when stopping the operating mode once more, the dust of gathering can send out the part and drop, the unbalance of quality can make the impeller in service produce the vibration, can cause parts such as bearing or impeller to damage, seriously influence the normal operating of unit, in time clean draught fan impeller deposition is the effective measure that prevents draught fan deposition vibration.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an axial flow draught fan wheel hub deposition sweeps device, and its wind that can utilize self to produce sweeps the deposition, makes it must not gather, has solved the problem of vibration.
The utility model discloses a following technical scheme realizes:
the utility model provides an axial flow draught fan wheel hub deposition sweeps device, is including installing the crooked hollow tube on axial flow draught fan shell, one end of hollow tube connects at axial flow draught fan air outlet, and another is facing to axial flow draught fan's the wheel hub back.
Further: the hollow pipes are arranged in plurality and are uniformly distributed on the shell of the axial flow induced draft fan.
Further: the hollow tube is close to axial flow draught fan wheel hub back one end and installs the toper tuyere.
Further: the air nozzle is connected with the hollow pipe through threads.
Further: the tuyere is made of ceramic materials.
Compared with the prior art, the utility model have following advantage:
the utility model discloses a hollow tube draws the axial flow draught fan wheel hub back with the air current of some axial flow draught fan air outlets, sweeps the dust, makes the dust can not gather at the axial flow draught fan wheel hub back, has solved the problem of vibration.
And secondly, the manifold uniformly sweeps the back of the hub of the axial flow draught fan, so that the efficiency is higher.
And thirdly, the air outlet of the hollow pipe is in threaded connection with an air nozzle, so that the air nozzle can be conveniently replaced after being worn.
And fourthly, the air nozzle is made of ceramics, so that the air nozzle is wear-resistant and the maintenance frequency is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1. the axial flow draught fan inclines the shell; 2. a hollow tube; 3. and a blast nozzle.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model provides an axial fan wheel hub deposition sweeps device, is including installing crooked hollow tube 2 on axial fan shell 1, and hollow tube 2 one end connects at axial fan air outlet, and another end is facing to axial fan's wheel hub back. The hollow pipes 2 are distributed on the axial flow draught fan shell 1 evenly. The tapered tuyere 3 is arranged at one end of the hollow pipe 2 close to the back of the axial flow draught fan hub. The tuyere 3 is in threaded connection with the hollow pipe 2. The tuyere 3 is made of ceramic material.
In this embodiment, the utility model discloses at the during operation:
after the axial flow draught fan is started, the hollow pipe 2 guides part of air from an air outlet of the axial flow draught fan to the back of the hub of the axial flow draught fan, and finally the air is uniformly blown to the back of the hub of the axial flow draught fan by the air nozzle 3. And the continuous purging prevents dust from gathering, and avoids the occurrence of hub vibration. When the tuyere 3 is worn by a high-speed airflow, it can be replaced.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. The utility model provides an axial flow draught fan wheel hub deposition sweeps device which characterized in that: the axial flow induced draft fan comprises a bent hollow pipe (2) arranged on an axial flow induced draft fan shell (1), wherein one end of the hollow pipe (2) is connected to an air outlet of the axial flow induced draft fan shell (1), and the other end of the hollow pipe faces to the back face of a hub of the axial flow induced draft fan.
2. The axial flow induced draft fan wheel hub deposition purging device of claim 1, wherein: the hollow pipes (2) are arranged in plurality and are uniformly distributed on the axial flow induced draft fan shell (1).
3. The axial flow induced draft fan wheel hub deposition purging device of claim 1, wherein: the hollow pipe (2) is close to one end of the back of the axial flow draught fan hub and is provided with a conical air nozzle (3).
4. The axial flow induced draft fan wheel hub deposition purging device of claim 3, wherein: the air nozzle (3) is in threaded connection with the hollow pipe (2).
5. The axial flow induced draft fan wheel hub deposition purging device of claim 3, wherein: the air nozzle (3) is made of ceramic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121794739.6U CN214837424U (en) | 2021-08-03 | 2021-08-03 | Axial flow draught fan wheel hub deposition sweeps device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121794739.6U CN214837424U (en) | 2021-08-03 | 2021-08-03 | Axial flow draught fan wheel hub deposition sweeps device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214837424U true CN214837424U (en) | 2021-11-23 |
Family
ID=78874598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121794739.6U Active CN214837424U (en) | 2021-08-03 | 2021-08-03 | Axial flow draught fan wheel hub deposition sweeps device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214837424U (en) |
-
2021
- 2021-08-03 CN CN202121794739.6U patent/CN214837424U/en active Active
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