CN203114669U - Electromotor fan of coal feeder - Google Patents
Electromotor fan of coal feeder Download PDFInfo
- Publication number
- CN203114669U CN203114669U CN 201320028465 CN201320028465U CN203114669U CN 203114669 U CN203114669 U CN 203114669U CN 201320028465 CN201320028465 CN 201320028465 CN 201320028465 U CN201320028465 U CN 201320028465U CN 203114669 U CN203114669 U CN 203114669U
- Authority
- CN
- China
- Prior art keywords
- cooling fan
- contactor
- fan
- coal feeder
- coal
- Prior art date
- 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
An electromotor fan of a coal feeder comprises a frequency changer and a cooling fan of an electromotor. The frequency changer is connected with a contactor. Under the control of the frequency changer, the contactor enables a power source of the cooling fan to be powered on through a contact point, and the cooling fan is driven to work. According to the electromotor fan of the coal feeder, an intermediate relay is replaced with the contactor, the problem that after running for a long time, the function of the contact point is decreased is solved, and stable running of the coal feeder is guaranteed.
Description
Technical field
The utility model belongs to the boiler technology field, is specifically related to a kind of coal-feeding conveyer motor ventilating fan.
Background technique
Existing coal feeder of boiler adopts variable-frequency motor to drive, and the cooling fan of variable-frequency motor is by the Frequency Converter Control auxiliary reclay, connects the three phase mains work of cooling fan again by auxiliary reclay.Because coal-feeding conveyer running environment is abominable, after the long-time running, the auxiliary reclay contactless power is less relatively, auxiliary reclay frequently occurs and blows phenomenon, causes the special-purpose screen tripping operation of boiler when serious, boiler pressuring fire.
Summary of the invention
The purpose of this utility model is to provide a kind of coal-feeding conveyer motor electric fan, solving prior art adopts the long-term use back auxiliary reclay contactless power of auxiliary reclay connection motor electric fan existence less relatively, thereby cause that auxiliary reclay blows phenomenon, cause the special-purpose screen tripping operation of boiler when serious, the problem of boiler pressuring fire.
The purpose of this utility model is achieved in that coal-feeding conveyer motor electric fan, comprises the cooling fan of frequency variator and motor, and frequency variator is connected with contactor, and contactor is by the power source driving cooling fan work of contacting cooling fan under the control of frequency variator.
The utlity model has following beneficial effect, the utility model substitutes auxiliary reclay with contactor, has overcome the problem of long-time running back contact function reduction, has guaranteed the stable operation of coal-feeding conveyer.
Description of drawings
Fig. 1 is the utility model coal-feeding conveyer motor electric fan structural representation.
Among the figure, 1. frequency variator, 2. contactor, 3. cooling fan.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Coal-feeding conveyer motor electric fan comprises the cooling fan 3 of frequency variator 1 and motor, and frequency variator 1 is connected with contactor 2, and contactor 2 is by power source driving cooling fan 3 work of contacting cooling fan 3 under the control of frequency variator 1.
Because variable-frequency motor control is less demanding to middle pull up time, but the power requirements to the contact is bigger, and therefore, the utility model substitutes auxiliary reclay with contactor, overcome the problem of long-time running back contact function reduction, guaranteed the stable operation of coal-feeding conveyer.
Claims (1)
1. coal-feeding conveyer motor electric fan, it is characterized in that: the cooling fan (3) that comprises frequency variator (1) and motor, described frequency variator (1) is connected with contactor (2), under the control of described frequency variator (1), described contactor (2) is by the described cooling fan of power source driving (3) work of contacting cooling fan (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028465 CN203114669U (en) | 2013-01-18 | 2013-01-18 | Electromotor fan of coal feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028465 CN203114669U (en) | 2013-01-18 | 2013-01-18 | Electromotor fan of coal feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114669U true CN203114669U (en) | 2013-08-07 |
Family
ID=48895019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320028465 Expired - Fee Related CN203114669U (en) | 2013-01-18 | 2013-01-18 | Electromotor fan of coal feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203114669U (en) |
-
2013
- 2013-01-18 CN CN 201320028465 patent/CN203114669U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140118 |