CN212296934U - Draught fan for thermal power plant - Google Patents
Draught fan for thermal power plant Download PDFInfo
- Publication number
- CN212296934U CN212296934U CN202020614637.0U CN202020614637U CN212296934U CN 212296934 U CN212296934 U CN 212296934U CN 202020614637 U CN202020614637 U CN 202020614637U CN 212296934 U CN212296934 U CN 212296934U
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- China
- Prior art keywords
- fan
- main shaft
- thermal power
- fan blade
- induced draft
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of dust cleaning, in particular to a draught fan for a thermal power plant, which comprises a fan shell, wherein an air outlet and an air inlet are arranged on the fan shell, a fan blade is arranged in the fan shell, the fan blade is connected with an external motor through a main shaft, a spray head is arranged at one end of the main shaft connected with the fan blade, a through hole communicated with the spray head is arranged on the side wall of one end of the main shaft connected with the motor, a buffer box is sleeved on the main shaft, so that the through hole is positioned in the buffer box, the buffer box is connected with a water pump through a water; when the fan blades accumulate dust, the water pump is started, and the cleaning liquid in the water tank sequentially passes through the water pipe, the buffer tank, the through hole and the main shaft and is sprayed out from the spray head to clean the fan blades. The utility model discloses can clear up carbon deposit and wind dirt on the fan blade, improve the work efficiency of fan blade, guarantee the combustion efficiency of boiler.
Description
Technical Field
The utility model belongs to the technical field of the dust washs, especially, relate to a draught fan for thermal power plant.
Background
So-called thermal power plant is exactly utilizing heat energy to produce power, then utilize power promotion generator, then produce the electric energy by the generator, the power plant of outside transport, all need use the boiler in the thermal power plant, and the boiler needs supporting draught fan when the operation, the draught fan mainly plays and takes out the flue gas in the boiler, the effect of maintaining boiler negative pressure, however, can produce a lot of dust particles and unburned complete carbon granule when burning in the boiler, behind the draught fan, a lot of carbon deposits and wind-dust can be attached to on the fan blade, influence the pneumatic performance of fan blade, lead to the convulsions efficiency of fan to reduce, lead to the combustion efficiency of boiler to reduce, the waste of the energy has been caused. Therefore, the induced draft fan for the thermal power plant is provided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a draught fan for thermal power plant, carbon deposit and wind dirt on its aim at clearance fan blade improve the work efficiency of fan blade, guarantee the combustion efficiency of boiler.
In order to achieve the above object, the utility model adopts the following technical scheme:
an induced draft fan for a thermal power plant comprises a fan shell, wherein an air outlet and an air inlet are formed in the fan shell, a fan blade is arranged in the fan shell and is connected with an external motor through a main shaft, a spray nozzle is arranged at one end of the main shaft connected with the fan blade, a through hole communicated with the spray nozzle is formed in the side wall of one end of the main shaft connected with the motor, a buffer box is sleeved on the main shaft, the through hole is located in the buffer box, the buffer box is connected with a water pump through a water pipe, and a water pumping port of the water;
when the fan blades accumulate dust, the water pump is started, and the cleaning liquid in the water tank sequentially passes through the water pipe, the buffer tank, the through hole and the main shaft and is sprayed out from the spray head to clean the fan blades.
Further, sealing parts are arranged on two sides of the buffer tank.
Further, the main shaft is connected to an output shaft of the motor through a coupling.
Furthermore, the bottom of the fan shell is provided with a slag discharge port, and the slag discharge port is connected with a sealing cover through threads.
Furthermore, a filter screen is arranged on an air outlet of the fan shell.
Further, motor, baffle-box all set up in the water tank top.
Furthermore, the fan blade is of a centrifugal structure and is made of alloy steel.
Further, the main shaft is made of high-manganese alloy steel.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses be equipped with the through-hole of shower nozzle and intercommunication shower nozzle on the main shaft of connecting the fan blade, it is equipped with the baffle-box still to overlap on the main shaft, and the baffle-box leads to pipe connects the water pump. The fan blade generates carbon deposit and dust after being used for a long time, the water pump is started to suck out cleaning liquid in the water tank, the cleaning liquid sequentially passes through the water pipe, the buffer tank and the through hole, and finally the cleaning liquid is sprayed out from the spray head to clean the fan blade, so that the carbon deposit and the dust on the fan blade can be cleaned, and meanwhile, the fan blade is cooled, so that the working efficiency of the fan blade is improved, and the combustion efficiency of the boiler is ensured. And discharging the cleaned carbon deposit and dust from a slag discharge port at the bottom of the fan shell. Simultaneously the utility model discloses set up the filter screen on the air outlet, avoid being discharged by inspiratory dust, prevent that the environment from being polluted. The main shaft is made of high-manganese alloy steel, so that the strength of the main shaft is enhanced, and the main shaft can keep higher stability under the conditions of high temperature and high rotating speed.
Drawings
Fig. 1 is a schematic structural diagram of an induced draft fan for a thermal power plant.
Wherein: 1-a fan housing; 2-air outlet; 3-air inlet; 4-fan blades; 5-a main shaft; 6-a spray head; 7-an electric motor; 8-a through hole; 9-a buffer tank; 10-a seal; 11-a water pipe; 12-a water pump; 13-a water tank; 14-a slag discharge port; 15-sealing cover; 16-a filter screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
As shown in fig. 1, the induced draft fan for a thermal power plant comprises a fan housing 1, an air outlet 2 and an air inlet 3 are arranged on the fan housing 1, and a filter screen 16 is arranged on the air outlet 2 of the fan housing 1. The bottom of the fan shell 1 is provided with a slag discharge port 14, and the slag discharge port 14 is connected with a sealing cover 15 through threads.
The fan shell 1 is internally provided with fan blades 4, and the fan blades 4 are of a centrifugal structure and are made of alloy steel materials. Fan blade 4 is installed on main shaft 5, main shaft 5 rotates and runs through fan casing 1 and passes through the coupling joint with outside motor 7, main shaft 5 is equipped with shower nozzle 6 with the one end that fan blade 4 is connected, set up the through-hole 8 with shower nozzle 6 intercommunication on the lateral wall of the one end that main shaft 5 is connected with motor 7, the cover is equipped with baffle-box 9 on main shaft 5, make through-hole 8 be located baffle-box 9, the both sides of baffle-box 9 are equipped with sealing member 10, baffle-box 9 leads to pipe 11 to connect water pump 12, the mouth that draws water of water pump 12 is located water tank 13. The motor 7 and the buffer tank 9 are both positioned above the water tank 13.
The utility model discloses a theory of use as follows:
when the fan works, a power supply is switched on, the motor 7 drives the fan blades 4 to rotate through the main shaft 5, and under the action of the fan blades 4, smoke enters the fan shell 1 through the air inlet 3 and is finally discharged from the air outlet 2. After long-time use, carbon deposit is gradually generated on the fan blade 4, the water pump 12 is started at the moment, the water pump 12 sucks cleaning liquid in the water tank 13, the cleaning liquid enters the buffer tank 9 through the water pipe 11, water in the buffer tank 9 enters the spray head 6 through the through hole 8 and is sprayed onto the fan blade 4 through the spray head 6, and therefore the carbon deposit and dust on the fan blade 4 are cleaned, and meanwhile the fan blade 4 is cooled. The cleaned carbon deposit and dust are discharged from a slag discharge hole at the bottom of the fan shell
The filter screen 16 on the air outlet 2 is detachably mounted, so that a large amount of dust can be prevented from being discharged.
The main shaft 5 is made of high-manganese alloy steel, so that the strength of the main shaft 5 is enhanced, and the main shaft 5 can keep high stability under the conditions of high temperature and high rotating speed.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides an induced draft fan for thermal power plant, includes fan casing (1), be equipped with air outlet (2) and air intake (3) on fan casing (1), be equipped with fan blade (4) in fan casing (1), fan blade (4) are connected its characterized in that through main shaft (5) and outside motor (7): a spray head (6) is arranged at one end, connected with the fan blade (4), of the main shaft (5), a through hole (8) communicated with the spray head (6) is formed in the side wall of one end, connected with the motor (7), of the main shaft (5), a buffer box (9) is sleeved on the main shaft (5), the through hole (8) is located in the buffer box (9), the buffer box (9) is connected with a water pump (12) through a water pipe (11), and a water pumping port of the water pump (12) is located in a water tank (13);
when the fan blade (4) is accumulated with dust, the water pump (12) is started, and the cleaning liquid in the water tank (13) passes through the water pipe (11), the buffer tank (9), the through hole (8) and the main shaft (5) in sequence and is sprayed out from the spray head (6) to clean the fan blade (4).
2. The induced draft fan for the thermal power plant according to claim 1, wherein: and sealing parts (10) are arranged on two sides of the buffer box (9).
3. The induced draft fan for thermal power plants according to claim 2, wherein: the main shaft (5) is connected to an output shaft of the motor (7) through a coupling.
4. The induced draft fan for thermal power plants according to claim 3, wherein: the bottom of the fan shell (1) is provided with a slag discharge port (14), and the slag discharge port (14) is connected with a sealing cover (15) through threads.
5. The induced draft fan for the thermal power plant according to claim 4, wherein: and a filter screen (16) is arranged on the air outlet (2) of the fan shell (1).
6. The induced draft fan for thermal power plants according to claim 5, wherein: the motor (7) and the buffer tank (9) are both arranged above the water tank (13).
7. The induced draft fan for thermal power plants according to claim 6, wherein: the fan blades (4) are of a centrifugal structure, and the fan blades (4) are made of alloy steel.
8. The induced draft fan for thermal power plants according to claim 7, wherein: the main shaft (5) is made of high-manganese alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020614637.0U CN212296934U (en) | 2020-04-22 | 2020-04-22 | Draught fan for thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020614637.0U CN212296934U (en) | 2020-04-22 | 2020-04-22 | Draught fan for thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212296934U true CN212296934U (en) | 2021-01-05 |
Family
ID=73973917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020614637.0U Expired - Fee Related CN212296934U (en) | 2020-04-22 | 2020-04-22 | Draught fan for thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212296934U (en) |
-
2020
- 2020-04-22 CN CN202020614637.0U patent/CN212296934U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210105 |