CN203685613U - Combined driving system of primary fan and blower of coal-fired power generator set - Google Patents
Combined driving system of primary fan and blower of coal-fired power generator set Download PDFInfo
- Publication number
- CN203685613U CN203685613U CN201320868238.7U CN201320868238U CN203685613U CN 203685613 U CN203685613 U CN 203685613U CN 201320868238 U CN201320868238 U CN 201320868238U CN 203685613 U CN203685613 U CN 203685613U
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- Prior art keywords
- primary air
- fan
- air fan
- steam turbine
- blower
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- Expired - Lifetime
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- 238000010248 power generation Methods 0.000 claims description 11
- 239000003245 coal Substances 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000002817 coal dust Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- -1 after once heating Chemical compound 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a combined driving system of a primary fan and a blower of a coal-fired power generator set. The combined driving system comprises the primary fan, the blower as well as a turbine, wherein one end of a rotating shaft of the turbine is connected with a main shaft of the primary fan through speed regulation equipment; the other end of the rotating shaft of the turbine is connected with a main shaft of the blower through the speed regulation equipment. By adopting the combined driving system, the power consumption of a power plant is reduced, the power efficiency of the power plant is improved, the production cost is saved, the production efficiency is improved, and the economic benefits are improved.
Description
Technical field
The utility model relates to a kind of power plant accessories, specifically a kind of blower fan associating drive system.
Background technique
Power station mainly utilizes coal fired power generation unit to carry out thermal power generation at home at present, thermal power generation is to point to boiler to carry the fuel such as treated coal dust, the fuel combustions such as coal dust make the water in boiler become water vapor, after once heating, water vapor enters high-pressure cylinder, in order to improve the thermal efficiency, water vapor is carried out to double heating, water vapor enters intermediate pressure cylinder, utilizes the Steam Actuation steam turbine generator generating of intermediate pressure cylinder.
In the process of thermal power generation, the fuel such as coal dust burn in boiler, and therefore primary air fan and gas fan are the main supplementary equipment in power station.Primary air fan is mainly used in drying fuel, and fuel is sent in boiler; Gas fan is used for overcoming the resistance of air preheater, air channel and burner, and the hot air that input burning is required, maintains full combustion of fuel.
Primary air fan and gas fan generally directly drive operation by motor at present, the generator set that is 300MW for capacity, and the electric weight that drives the motor of primary air fan and gas fan operation to take is about 0.8% of full station service.Along with the power supply demand of China is growing, also fast rise thereupon of Generator pool-size, adopts the power station power consumption of motoring primary air fan and gas fan to increase sharply, and the power consumption efficiency of power station is low, has increased cost of production.
Model utility content
The utility model technical issues that need to address are to provide a kind of coal fired power generation unit primary air fan and gas fan associating drive system, have reduced the power consumption of power station, have reduced cost of production.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is:
Coal fired power generation unit primary air fan and gas fan associating drive system, comprise primary air fan and gas fan, also comprise a steam turbine, one end of the rotating shaft of described steam turbine is connected with the main shaft of primary air fan by speed control device, and the other end of the rotating shaft of steam turbine is connected with the main shaft of gas fan by speed control device.
Further improvement of the utility model is: between the described speed control device being connected with the main shaft of primary air fan and rotating shaft of steam turbine, clutch is set.
Further improvement of the utility model is: described speed control device is gear-box or fluid coupling.
Owing to having adopted technique scheme, the technological progress that the utility model is obtained is:
The utility model is simple in structure, utilizes the rotating shaft of same steam turbine to be connected with gas fan with primary air fan simultaneously, drives primary air fan and gas fan to run well, and has reduced the power consumption of power station, has saved cost of production, has improved manufacturing efficiency.
The utility model has improved the power consumption efficiency of power station, has saved cost of production, has increased economic benefit.Primary air fan and gas fan have all been realized stepless change, have greatly improved the underrun efficiency of primary air fan and gas fan, have reduced the steam consumption, have improved the Economy of generator set operation.Calculate with 5500h according to generator unit annual interest, for separate unit 300MW generator set, year can increase electricity volume and be about 1,870 ten thousand kWh; For separate unit 600MW generator set, a year increase electricity volume is about 3,740 ten thousand kWh; For separate unit 1000MW generator set, a year increase electricity volume is about 5,610 ten thousand kWh.
Between primary air fan and steam turbine, speed control device is set between steam turbine and gas fan, the rotating speed needing according to primary air fan and gas fan regulates, and speed governing is convenient, guarantees device security.Clutch is arranged between the speed control device and steam turbine that connects primary air fan, meets the start and stop needs of primary air fan, guarantees to produce and carries out smoothly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1, steam turbine, 2, primary air fan, 3, gas fan, 4, speed control device, 5, clutch.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further details:
Coal fired power generation unit primary air fan and gas fan associating drive system, structure as shown in Figure 1, comprises steam turbine 1, two cover speed control device 4, primary air fan 2 and gas fans 3.
Described steam turbine 1 is for driving primary air fan 2 and gas fan 3 to run well, rotating shaft one end of steam turbine 1 connects the input end of a set of speed control device 4, speed control device 4 described in the present embodiment is selected gear-box, also can select fluid coupling etc. other can adjusting rotary speed equipment.The output terminal of speed control device 4 is connected with the main shaft of gas fan 3.
The other end of the rotating shaft of steam turbine 1 connects clutch 5.Described clutch 5 is for controlling the start and stop of primary air fan.The output terminal of clutch 5 connects the input end of another set of speed control device 4, and the output terminal of described speed control device 4 connects the main shaft of primary air fan 2.
Working principle of the present utility model is:
Primary air fan and gas fan are by steam turbine Driven by Coaxial; because the rotating speed of steam turbine is higher; and primary air fan and gas fan rotating speed are relatively low, for protection equipment, guarantee to produce, between steam turbine and primary air fan, configure speed control device between steam turbine and gas fan.
In primary air fan side, clutch is set, meets blower fan start and stop needs.When based on fuel burning, the boot sequence of boiler, first starts gas fan, then starts primary air fan; In the time that boiler is shut down, the primary air fan of first stopping transport, the gas fan of then stopping transport.
Claims (3)
1. coal fired power generation unit primary air fan and gas fan associating drive system, comprise primary air fan (2) and gas fan (3), it is characterized in that: also comprise a steam turbine (1), one end of the rotating shaft of described steam turbine (1) is connected with the main shaft of primary air fan (2) by speed control device (4), and the other end of the rotating shaft of steam turbine (1) is connected with the main shaft of gas fan (3) by speed control device (4).
2. coal fired power generation unit primary air fan according to claim 1 and gas fan associating drive system, is characterized in that: between the described speed control device (4) being connected with the main shaft of primary air fan (2) and steam turbine (1) rotating shaft, clutch (5) is set.
3. according to the coal fired power generation unit primary air fan described in claim 1 or 2 any one and gas fan associating drive system, it is characterized in that: described speed control device (4) is gear-box or fluid coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320868238.7U CN203685613U (en) | 2013-12-27 | 2013-12-27 | Combined driving system of primary fan and blower of coal-fired power generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320868238.7U CN203685613U (en) | 2013-12-27 | 2013-12-27 | Combined driving system of primary fan and blower of coal-fired power generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685613U true CN203685613U (en) | 2014-07-02 |
Family
ID=51007521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320868238.7U Expired - Lifetime CN203685613U (en) | 2013-12-27 | 2013-12-27 | Combined driving system of primary fan and blower of coal-fired power generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873334A (en) * | 2019-11-26 | 2020-03-10 | 李宏江 | Method and device for purifying waste gas or industrial waste gas of combustion furnace and stove |
-
2013
- 2013-12-27 CN CN201320868238.7U patent/CN203685613U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873334A (en) * | 2019-11-26 | 2020-03-10 | 李宏江 | Method and device for purifying waste gas or industrial waste gas of combustion furnace and stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 050031 No. 6 Jianbei Street, Chang'an District, Shijiazhuang City, Hebei Province Patentee after: POWERCHINA HEBEI ELECTRIC POWER ENGINEERING Co.,Ltd. Address before: 050031 No. 6 Jianbei Street, Chang'an District, Shijiazhuang City, Hebei Province Patentee before: HEBEI ELECTRIC POWER DESIGN & Research Institute |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |