CN203948327U - The boiler of power plant gas fan of permanent magnetic speed-adjusting - Google Patents
The boiler of power plant gas fan of permanent magnetic speed-adjusting Download PDFInfo
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- CN203948327U CN203948327U CN201420317691.3U CN201420317691U CN203948327U CN 203948327 U CN203948327 U CN 203948327U CN 201420317691 U CN201420317691 U CN 201420317691U CN 203948327 U CN203948327 U CN 203948327U
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- outer cover
- boiler
- speed regulator
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Abstract
The utility model relates to boiler of power plant technical field, a kind of boiler of power plant gas fan of permanent magnetic speed-adjusting particularly, comprise motor, permanent-magnet coupled speed regulator and air-supply main frame, motor is connected with air-supply main frame by permanent-magnet coupled speed regulator, air-supply main frame is blown to boiler by ajutage, columnar outer cover is installed on permanent-magnet coupled speed regulator, on outer cover, there is intake grill and exhaust outlet, at exhaust outlet place mounting temperature sensor, intake grill on outer cover is connected with ajutage by cooling duct, on cooling duct, there is the electric control valve that regulates air quantity, electric control valve is connected with temperature transducer.The beneficial effects of the utility model are: be fully beneficial to power plant's gas fan and discharge cooling air, permanent-magnet coupled speed regulator is carried out to forced air cooling; Can regulate the air output size of cooling air according to the actual heating value of permanent-magnet coupled speed regulator, improve the utilization ratio of cooling air.
Description
Technical field
The utility model relates to the boiler of power plant gas fan of boiler of power plant technical field, particularly a kind of permanent magnetic speed-adjusting.
Background technique
Domestic heat power plant boiler main frame, the mode of speed regulation major part that its high-power gas fan adopts is frequency control of motor speed.The problem that frequency control of motor speed often occurs in power station production run.The uncertainty of frequency conversion equipment fault, produces to each power station and has brought hidden danger, has directly affected continuity, stability and the reliability of production run; Ye Gei power plant has brought larger economic loss.
Therefore boiler of power plant gas fan all adopts permanent-magnet coupled speed regulator to carry out speed governing at present.Permanent-magnet coupled speed regulator is to realize by motor the torque transfer to load by the air gap between copper conductor and permanent magnet.The primary component of permanent-magnet coupled speed regulator is copper dish and permanent magnetic disk, under slow-speed of revolution operating mode, copper conductor heating is seriously about the highest 200 degree, for being uniformly distributed of assurance device working life and the magnetic line of force, strengthen the working efficiency of speed regulator, on copper dish, heat-conducting plate is installed, copper dish is by under the effect of inertial force of self rotation, by axially sucking air under ambient temperature, that copper dish is carried out to nature is cooling, but this natural type of cooling using effect in slow-speed of revolution situation is not good, and because power station environment is poor, original heat-conducting plate teeth groove dust stratification is serious, even teeth groove can be blocked, have a strong impact on radiating effect.
Model utility content
Technical problem to be solved in the utility model is: a kind of boiler of power plant gas fan of permanent magnetic speed-adjusting is provided, improves the cooling effect of permanent-magnet coupled speed regulator.
The utility model solves the technological scheme that its technical problem adopts: a kind of boiler of power plant gas fan of permanent magnetic speed-adjusting, comprise motor, permanent-magnet coupled speed regulator and air-supply main frame, motor is connected with air-supply main frame by permanent-magnet coupled speed regulator, air-supply main frame is blown to boiler by ajutage, columnar outer cover is installed on permanent-magnet coupled speed regulator, on outer cover, there is intake grill and exhaust outlet, at exhaust outlet place mounting temperature sensor, intake grill on outer cover is connected with ajutage by cooling duct, on cooling duct, there is the electric control valve that regulates air quantity, electric control valve is connected with temperature transducer.
For improving cooling effect, further limit, the exhaust outlet on outer cover is positioned at the top of outer cover, and the air-out direction of exhaust outlet and outer cover tangent, intake grill is positioned at the bottom of outer cover.The design of outer cover extends the holdup time of cooling air in outer cover, the abundant heat exchange of heating component of cooling air and permanent-magnet coupled speed regulator.
The beneficial effects of the utility model are: be fully beneficial to power plant's gas fan and discharge cooling air, permanent-magnet coupled speed regulator is carried out to forced air cooling; Can regulate the air output size of cooling air according to the actual heating value of permanent-magnet coupled speed regulator, improve the utilization ratio of cooling air.
Under equivalent environment, make comparisons, former natural type of cooling outlet temperature is 46 degree (rotating speed is at 1200r/m), and after transformation, outlet temperature is 30 degree.Effectively reduce the operating temperature of copper dish.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is further illustrated;
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the schematic diagram of permanent-magnet coupled speed regulator of the present utility model;
In figure: 1. motor, 2. permanent-magnet coupled speed regulator, 2-1. outer cover, 2-2. intake grill, 2-3. exhaust outlet, 2-4. temperature transducer, 2-5. cooling duct, 2-6. electric control valve, 3. air-supply main frame, 4. ajutage.
Embodiment
As illustrated in fig. 1 and 2, a kind of boiler of power plant gas fan of permanent magnetic speed-adjusting, comprise motor 1, permanent-magnet coupled speed regulator 2 and air-supply main frame 3, motor 1 is connected with air-supply main frame 3 by permanent-magnet coupled speed regulator 2, air-supply main frame 3 is blown to boiler by ajutage 4, columnar outer cover 2-1 is installed on permanent-magnet coupled speed regulator 2, on outer cover 2-1, there is intake grill 2-2 and exhaust outlet 2-3, at the mounting temperature sensor 2-4 of exhaust outlet 2-3 place, intake grill 2-2 on outer cover 2-1 is connected with ajutage 4 by cooling duct 2-5, on cooling duct 2-5, there is the electric control valve 2-6 that regulates air quantity, electric control valve 2-6 is connected with temperature transducer 2-4.Exhaust outlet 2-3 on outer cover 2-1 is positioned at the top of outer cover 2-1, and the air-out direction of exhaust outlet 2-3 and outer cover 2-1 tangent, intake grill 2-2 is positioned at the bottom of outer cover 2-1.
Be with the difference of original natural type of cooling: 1, for guaranteeing, force cooling effect and reduce windage and cancel original 12 heat-conducting plates, cold wind directly acts on heating copper conductor; 2, increase the flow velocity of cooling air quantity and air, played good cooling effect.
Claims (2)
1. the boiler of power plant gas fan of a permanent magnetic speed-adjusting, it is characterized in that: comprise motor (1), permanent-magnet coupled speed regulator (2) and air-supply main frame (3), motor (1) is connected with air-supply main frame (3) by permanent-magnet coupled speed regulator (2), air-supply main frame (3) is blown to boiler by ajutage (4), at the upper columnar outer cover (2-1) of installing of permanent-magnet coupled speed regulator (2), on outer cover (2-1), there is intake grill (2-2) and exhaust outlet (2-3), at exhaust outlet (2-3), locate mounting temperature sensor (2-4), intake grill (2-2) on outer cover (2-1) is connected with ajutage (4) by cooling duct (2-5), on cooling duct (2-5), there is the electric control valve (2-6) that regulates air quantity, electric control valve (2-6) is connected with temperature transducer (2-4).
2. the boiler of power plant gas fan of permanent magnetic speed-adjusting according to claim 1, it is characterized in that: the exhaust outlet (2-3) on described outer cover (2-1) is positioned at the top of outer cover (2-1), and the air-out direction of exhaust outlet (2-3) and outer cover (2-1) are tangent, and intake grill (2-2) is positioned at the bottom of outer cover (2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317691.3U CN203948327U (en) | 2014-06-13 | 2014-06-13 | The boiler of power plant gas fan of permanent magnetic speed-adjusting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317691.3U CN203948327U (en) | 2014-06-13 | 2014-06-13 | The boiler of power plant gas fan of permanent magnetic speed-adjusting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203948327U true CN203948327U (en) | 2014-11-19 |
Family
ID=51890364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420317691.3U Expired - Fee Related CN203948327U (en) | 2014-06-13 | 2014-06-13 | The boiler of power plant gas fan of permanent magnetic speed-adjusting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203948327U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627281A (en) * | 2016-03-24 | 2016-06-01 | 中国大唐集团科学技术研究院有限公司 | Power station boiler with permanent magnet speed regulation air feeder |
-
2014
- 2014-06-13 CN CN201420317691.3U patent/CN203948327U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627281A (en) * | 2016-03-24 | 2016-06-01 | 中国大唐集团科学技术研究院有限公司 | Power station boiler with permanent magnet speed regulation air feeder |
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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: 20141119 Termination date: 20190613 |