CN205013330U - Direct -cooled thermal power plant is with external rotor permanent magnetism fan system - Google Patents
Direct -cooled thermal power plant is with external rotor permanent magnetism fan system Download PDFInfo
- Publication number
- CN205013330U CN205013330U CN201520399955.9U CN201520399955U CN205013330U CN 205013330 U CN205013330 U CN 205013330U CN 201520399955 U CN201520399955 U CN 201520399955U CN 205013330 U CN205013330 U CN 205013330U
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- rotor permanent
- permanent magnet
- motor
- external rotor
- direct
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Abstract
The utility model provides a direct -cooled thermal power plant is with external rotor permanent magnetism fan system comprises converter, external rotor permanent -magnet machine, fan blade and other appurtenances. The ground control room can be arranged in to the converter, also can arrange external rotor permanent -magnet machine in inside, control system and frequency conversion system integration are integrated, shorten the distance of converter to between external rotor permanent -magnet machine, the outside rotor of external rotor permanent -magnet machine rotates, and inside stator is fixed, and fan blade snap -on or fix in the pivoted rotor outside through the adaptor can require to be in the rotor outside along the ascending arbitrary position of axial side according to the operating condition, external rotor permanent -magnet machine's stator internally mounted cooling fan can cool off the motor, when the converter integration is inside to external rotor permanent -magnet machine, can cool off motor and converter simultaneously, also can not install cooling fan, carries out natural cooling, the inside cooling fan motor of external rotor permanent -magnet machine can adopt the outer rotor structure motor, and rotor structure motor in also can adopting can operate by invariable rotational speed, also can realize intelligent control according to operating condition proper motion regulation rotational speed.
Description
Technical field
The utility model relates to the direct air cooling system of thermal power plant, the blower fan system that thermal power plant's air direct cooling system that concrete is is used.
Background technique
The heat energy that thermal power generation produces when being and utilizing solid, liquid, the gas fuel combustions such as coal, oil, rock gas, water is heated, form high-temperature high-pressure overheat steam, pushing turbine rotates, and steam turbine again drive electrical generators rotates a kind of generation mode producing electric energy.The high-temperature high-pressure overheat steam discharging calorific potential energy is discharged from the steam-expelling port of steam turbine bottom, is called exhaust steam.Direct air cooling system is the exhaust steam of being discharged by steam turbine, is introduced being referred to as, in the steel radiator of air cooling condenser, to be directly cooled to water of condensation by ambient air by pipeline.The thermal power plant of direct air cooling system is used to be called direct-cooled thermal power plant during cooling exhaust steam.
The core of the air cooling system that direct-cooled thermal power plant uses is blower fan system, and blower fan system in the market mainly comprises the parts such as fan blade, asynchronous motor, retarder and frequency variator, this traditional blower fan system there is the following problem:
1, running efficiency of system is low.System uses asynchronous motor, and is often in underpower running state, and operational efficiency is lower; The efficiency of retarder is also lower in addition, and the operational efficiency that result in whole system is low.
2, system reliability is low.Speed reducer rate of fault is high, and maintenance is large, and maintenance cost is high.
3, system unit is many, takes up room large.
Summary of the invention
In order to overcome the problems referred to above existing for current direct-cooled thermal power plant blower fan system, the utility model provides a kind of direct-cooled thermal power plant external rotor permanent magnet blower fan system, primarily of frequency variator, outer-rotor permanent magnet motor, fan blade composition, it is characterized in that: frequency variator can be placed in ground level control room, also outer-rotor permanent magnet motor inside can be placed in, control system and frequency conversion system integrated, shorten the distance between frequency variator to outer-rotor permanent magnet motor; Outer-rotor permanent magnet motor external rotor rotates, and internal stator is fixed, fan blade directly fixing or be fixed on rotation by adaptor rotor outside, the arbitrary position on the direction that can be in outside rotor vertically according to requirement of actual working condition; The stator interior of outer-rotor permanent magnet motor installs cooling fan, can cool motor, when frequency variator is integrated into outer-rotor permanent magnet motor inside, can cools simultaneously, also can not install cooling fan, carry out nature cooling to motor and frequency variator; The cooling fan motor of outer-rotor permanent magnet motor inside can adopt outer-rotor structure motor, also can adopt inner rotor core motor, constant rotational speed can operate, also according to actual conditions adjusting rotary speed voluntarily, can realize intelligent control.
The beneficial effects of the utility model are, improve operational efficiency and the reliability of blower fan system, decrease system maintenance cost, compact structure, occupy little space, can realize blower fan system intelligent control.
Accompanying drawing explanation
Fig. 1 ~ Fig. 4 is external rotor permanent magnet blower fan system structural drawing.
Fig. 5 ~ Fig. 8 is external rotor permanent magnet blower fan system fan blade long splice composition.
In Fig. 1 ~ Fig. 8: 1. frequency variator, 2. outer-rotor permanent magnet motor, 3. stator, 4. rotor, 5. fan blade, 6. cooling fan, 7. cooling fan motor, 8. adaptor.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
In FIG, the stator (3) of outer-rotor permanent magnet motor (2) is fixed, and outer-rotor permanent magnet motor (2) rotor (4) is connected with fan blade (5).
In fig. 2, the stator (3) of outer-rotor permanent magnet motor (2) is fixed, outer-rotor permanent magnet motor (2) rotor (4) is connected with fan blade (5), the stator (3) that cooling fan motor (7) in cooling fan (6) is directly fixed on outer-rotor permanent magnet motor (2) is inner, for outer-rotor permanent magnet motor (2) provides cooling air.
In figure 3, in outer-rotor permanent magnet motor (2), stator (3) is fixed, outer-rotor permanent magnet motor (2) rotor (4) is connected with fan blade (5), and the stator (3) that frequency variator (1) is directly fixed on outer-rotor permanent magnet motor (2) is inner.
In the diagram, in outer-rotor permanent magnet motor (2), stator (3) is fixed, outer-rotor permanent magnet motor (2) rotor (4) is connected with fan blade (5), the stator (3) that cooling fan motor (7) in frequency variator (1) and cooling fan (6) is directly fixed on outer-rotor permanent magnet motor (2) is inner, and cooling fan (6) provides cooling air for outer-rotor permanent magnet motor (2) and frequency variator (1).
In Figure 5, fan blade (6) is directly fixed on rotor (4) bottom of outer-rotor permanent magnet motor (2).
In figure 6, fan blade (6) is directly fixed on rotor (4) middle part of outer-rotor permanent magnet motor (2).
In the figure 7, fan blade (6) is directly fixed on adaptor (8), and adaptor (8) is fixed on rotor (4) bottom of outer-rotor permanent magnet motor (2).
In fig. 8, fan blade (6) is directly fixed on adaptor (8), rotor (4) middle part of the fixing outer-rotor permanent magnet motor (2) of adaptor (8).
Claims (9)
1. a direct-cooled thermal power plant external rotor permanent magnet blower fan system, primarily of frequency variator, outer-rotor permanent magnet motor, fan blade composition, it is characterized in that: frequency variator is placed in ground level control room, or frequency variator is placed in outer-rotor permanent magnet motor inside, control system and frequency conversion system integrated, shorten the distance between frequency variator to outer-rotor permanent magnet motor.
2. one according to claim 1 direct-cooled thermal power plant external rotor permanent magnet blower fan system, is characterized in that: outer-rotor permanent magnet motor external rotor rotates, and internal stator is fixed, and fan blade is directly fixed or is fixed on by adaptor outside the rotor of rotation.
3. one according to claim 1 direct-cooled thermal power plant external rotor permanent magnet blower fan system, is characterized in that: the stator interior of outer-rotor permanent magnet motor installs cooling fan, cools motor.
4. one according to claim 1 direct-cooled thermal power plant external rotor permanent magnet blower fan system, is characterized in that: when frequency variator is integrated into outer-rotor permanent magnet motor inside, cool motor and frequency variator.
5. one according to claim 1 direct-cooled thermal power plant external rotor permanent magnet blower fan system, is characterized in that: do not install cooling fan, carries out nature cooling.
6. direct-cooled thermal power plant according to claim 3 external rotor permanent magnet blower fan system, is characterized in that: cooling fan motor adopts outer-rotor structure motor.
7. direct-cooled thermal power plant according to claim 3 external rotor permanent magnet blower fan system, is characterized in that: cooling fan motor adopts inner rotor core motor.
8. direct-cooled thermal power plant according to claim 3 external rotor permanent magnet blower fan system, is characterized in that: cooling fan motor constant rotational speed operates.
9. direct-cooled thermal power plant according to claim 3 external rotor permanent magnet blower fan system, is characterized in that: cooling fan motor is according to actual conditions adjusting rotary speed voluntarily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520399955.9U CN205013330U (en) | 2015-06-12 | 2015-06-12 | Direct -cooled thermal power plant is with external rotor permanent magnetism fan system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520399955.9U CN205013330U (en) | 2015-06-12 | 2015-06-12 | Direct -cooled thermal power plant is with external rotor permanent magnetism fan system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205013330U true CN205013330U (en) | 2016-02-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520399955.9U Expired - Fee Related CN205013330U (en) | 2015-06-12 | 2015-06-12 | Direct -cooled thermal power plant is with external rotor permanent magnetism fan system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205013330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112383170A (en) * | 2020-08-19 | 2021-02-19 | 招国梅 | Outer rotor permanent magnet motor and fan using same |
-
2015
- 2015-06-12 CN CN201520399955.9U patent/CN205013330U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112383170A (en) * | 2020-08-19 | 2021-02-19 | 招国梅 | Outer rotor permanent magnet motor and fan using same |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 |