CN204985009U - Frequency converter device of adjustable draught fan of movable vane - Google Patents
Frequency converter device of adjustable draught fan of movable vane Download PDFInfo
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- CN204985009U CN204985009U CN201520309645.3U CN201520309645U CN204985009U CN 204985009 U CN204985009 U CN 204985009U CN 201520309645 U CN201520309645 U CN 201520309645U CN 204985009 U CN204985009 U CN 204985009U
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- frequency
- draught fan
- power
- cabinet
- frequency conversion
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- Control Of Multiple Motors (AREA)
Abstract
The utility model provides a frequency converter device of adjustable draught fan of movable vane connects between draught fan high voltage power supply switch and draught fan motor, including bypass cabinet, transformer cabinet, switch board, power cabinet, draught fan converter primary loop comprises frequency conversion input switch QS1, frequency conversion output switch QS2 and power frequency bypass switch QS3. Through increase frequency converter device between draught fan motor and high voltage power supply switch for draught fan entry air door is under the operating mode of fixing the aperture, and the amount of wind and wind pressure control are adjusted with the mode realization microcosmic of accommodate motor rotational speed through adjusting converter output frequence according to the unit load, eliminate the throttling loss of air door, thereby reach energy saving and consumption reduction's purpose, the converter has manual bypass function simultaneously, can realize converter and power frequency bypass return circuit interlocking under the power frequency mode to ensure that the frequency conversion of same motor disappearance, power frequency drive simultaneously, can drop into the power frequency operation when satisfying the frequency conversion trouble.
Description
Technical field
The utility model relates to frequency variator field, is specifically related to a kind of frequency-converter device of adjusting rotor blade induced draught fan.
Background technique
Because the resistance of desulphurization and denitration considered by induced draught fan when designing, so design induced draught fan power margin is excessive, in order in use save energy and reduce the cost, so when selecting motor type, that selects adjusting rotor blade takes out flow fan as id-motor, Axial Fan with Adjustable Vanes can change the established angle of movable vane, realizes the adjustment of air quantity, blast.Axial Fan with Adjustable Vanes structure is relative to wanting complicated: it drives movable vane to rotate by hydraulic regulation petrol station, regulating arm, oil hydraulic cylinder and propeller regulating mechanism etc.During current 50% rated load, induced draught fan movable vane aperture only reaches 30%, and restriction loss is large, and consumption rate reaches 1.20%, and high compared with other company average values 0.35 percentage point, station service power consumption rate is high, less economical,
Model utility content
The technical problems to be solved in the utility model is to provide a kind of large-size machine that makes and runs the frequency-converter device more energy-conservation, performance is more stable, runs the large problem of power consumption to solve existing motor.
For solving the problems of the technologies described above, the utility model provides a kind of frequency-converter device of adjusting rotor blade induced draught fan, and concrete scheme is as follows:
A kind of frequency-converter device of adjusting rotor blade induced draught fan, it is characterized in that comprising bypass cabinet, transformer case, power cabinet and control cabinet, described bypass cabinet comprises frequency conversion input disconnecting link QS1, frequency conversion exports disconnecting link QS2 and power frequency by-pass knife switch QS3, frequency conversion input disconnecting link QS1, transformer case, power cabinet and frequency conversion export disconnecting link QS2 series connection successively, and power cabinet is connected with control cabinet by connection or cable.
Further, described frequency conversion exports between disconnecting link QS2 and power frequency by-pass knife switch QS3 and is provided with electrically and mechanical interlocking.
Further, described transformer case comprises U phase cell, V phase cell and W phase cell.
Further, described control cabinet is connected with boiler PC section drawer type power switch, the 380V main control power supply provided by boiler PC section drawer type power switch, 380V accessory power supply provides by providing UPS in control cabinet for oneself, and two-way 380V main control power supply is automatically switched by frequency variator master control borad each other.
The beneficial effects of the utility model are as follows:
The status parameter that induced draught fan variable speed can be made to run after increasing frequency-converter device is as good in vibration, bearing temperature, reduces the movable vane degree of wear caused by the movable vane amplitude of accommodation, station service power consumption rate can also be made to reduce, realize energy-saving and cost-reducing target.Compared with great start-up current or in excessive electromagnetic force situation, reduce the defects such as staor winding joint snaps, cage strip break; Simultaneously frequency variator has manual bypass function, can realize frequency variator and power frequency bypass loop interlocks under power frequency pattern, to guarantee that frequency conversion does not appear in same motor, power frequency drives simultaneously, can drop into power frequency operation when meeting frequency conversion fault.
Accompanying drawing explanation
Fig. 1 is the structural representation of the frequency-converter device of a kind of adjusting rotor blade induced draught fan of the utility model;
Fig. 2 is frequency variator basic principle figure;
Fig. 3 is a kind of transformer case structural representation of frequency-converter device of adjusting rotor blade induced draught fan.
Reference character: 1-induced draught fan high-voltage electric switch QF, 2-id-motor, 3-bypass cabinet, 4-transformer case, 5-power cabinet, 6-control cabinet, 7-frequency conversion input disconnecting link QS1,8-frequency conversion export disconnecting link QS2,9-power frequency by-pass knife switch QS3.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, it should be noted that, these specific descriptions just allow those of ordinary skill in the art be more prone to, clearly understand the utility model, but not to limited explanation of the present utility model.
A kind of frequency-converter device of adjusting rotor blade induced draught fan, be connected between induced draught fan high-voltage electric switch QF1 and id-motor 2, comprise bypass cabinet 3, transformer case 4, power cabinet 5 and control cabinet 6, described bypass cabinet 3 comprises frequency conversion input disconnecting link QS17, frequency conversion exports disconnecting link QS28 and power frequency by-pass knife switch QS39, frequency conversion input disconnecting link QS17, transformer case 4, power cabinet 5 export disconnecting link QS28 series connection successively with frequency conversion, and power cabinet 5 is connected with control cabinet 6 by connection or cable; Frequency conversion input disconnecting link QS17, frequency conversion export disconnecting link QS28 and power frequency by-pass knife switch QS39 and form frequency variator primary circuit, frequency conversion exports between disconnecting link QS28 and power frequency by-pass knife switch QS39 and is provided with electrically and mechanical interlocking, frequency conversion exports disconnecting link QS28 and power frequency by-pass knife switch QS39 and can not close a floodgate simultaneously, prevents frequency variator from running under frequency conversion and power frequency state simultaneously simultaneously.
Working procedure:
6kV fan power inputs disconnecting link QS17 by induced draught fan high-voltage electric switch QF1 by frequency conversion and is input to transformer case 4, the U phase cell of transformer case 4, V phase cell and W phase cell form a rectification, inversion, eliminator, there is provided power supply to power cabinet 5, power cabinet 5 regulates controlled angle according to the frequency instruction of control cabinet 6 thus changes output voltage, export disconnecting link QS28 through frequency conversion and be sent to id-motor 2, id-motor 2 converting operation; 6kV fan power also can through power frequency by-pass knife switch QS39 across-the-line starting id-motor 2, id-motor 2 power frequency operation; Have electrically and mechanical interlocking between QS2 and QS3, export disconnecting link under ensureing any operating mode and power frequency by-pass knife switch can not close a floodgate simultaneously; Control cabinet 6 is connected with boiler PC section drawer type power switch, the 380V main control power supply provided by boiler PC section drawer type power switch, 380V accessory power supply provides by providing UPS for oneself in control cabinet 6, two-way 380V main control power supply can automatically switch each other, when after the maintenance of 380V No. mono-primary power supply or dead electricity, another road primary power supply can be automatically switched to by frequency variator master control borad.
Claims (4)
1. the frequency-converter device of an adjusting rotor blade induced draught fan, it is characterized in that comprising bypass cabinet (3), transformer case (4), power cabinet (5) and control cabinet (6), described bypass cabinet (3) comprises frequency conversion input disconnecting link QS1 (7), frequency conversion exports disconnecting link QS2 (8) and power frequency by-pass knife switch QS3 (9), frequency conversion input disconnecting link QS1 (7), transformer case (4), power cabinet (5) export disconnecting link QS2 (8) series connection successively with frequency conversion, and power cabinet (5) is connected with control cabinet (6) by connection or cable.
2. the frequency-converter device of a kind of adjusting rotor blade induced draught fan according to claim 1, is characterized in that described frequency conversion exports between disconnecting link QS2 (8) and power frequency by-pass knife switch QS3 (9) and is provided with electrically and mechanical interlocking.
3. the frequency-converter device of a kind of adjusting rotor blade induced draught fan according to claim 1, is characterized in that described transformer case (4) comprises U phase cell, V phase cell and W phase cell.
4. the frequency-converter device of a kind of adjusting rotor blade induced draught fan according to claim 1, it is characterized in that described control cabinet (6) is connected with boiler PC section drawer type power switch, the 380V main control power supply provided by boiler PC section drawer type power switch, 380V accessory power supply provides by providing UPS for oneself in control cabinet (6), and two-way 380V power supply is automatically switched by frequency variator master control borad each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520309645.3U CN204985009U (en) | 2015-05-14 | 2015-05-14 | Frequency converter device of adjustable draught fan of movable vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520309645.3U CN204985009U (en) | 2015-05-14 | 2015-05-14 | Frequency converter device of adjustable draught fan of movable vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985009U true CN204985009U (en) | 2016-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520309645.3U Expired - Fee Related CN204985009U (en) | 2015-05-14 | 2015-05-14 | Frequency converter device of adjustable draught fan of movable vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985009U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070357A (en) * | 2017-04-28 | 2017-08-18 | 荣信汇科电气技术有限责任公司 | It is a kind of that the high-power frequency conversion device and method of work frequency conversion switching can be realized based on IEGT |
| CN112910372A (en) * | 2021-03-29 | 2021-06-04 | 宝信软件(武汉)有限公司 | System for steel mill centrifugal pump frequency conversion control |
| US11131491B1 (en) | 2020-08-07 | 2021-09-28 | Emerson Climate Technologies, Inc. | Systems and methods for multi-stage operation of a compressor |
-
2015
- 2015-05-14 CN CN201520309645.3U patent/CN204985009U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070357A (en) * | 2017-04-28 | 2017-08-18 | 荣信汇科电气技术有限责任公司 | It is a kind of that the high-power frequency conversion device and method of work frequency conversion switching can be realized based on IEGT |
| CN107070357B (en) * | 2017-04-28 | 2023-11-10 | 荣信汇科电气股份有限公司 | High-power frequency conversion device and method capable of realizing industrial frequency conversion switching based on IEGT |
| US11131491B1 (en) | 2020-08-07 | 2021-09-28 | Emerson Climate Technologies, Inc. | Systems and methods for multi-stage operation of a compressor |
| US11585581B2 (en) | 2020-08-07 | 2023-02-21 | Emerson Climate Technologies, Inc. | Systems and methods for multi-stage operation of a compressor |
| CN112910372A (en) * | 2021-03-29 | 2021-06-04 | 宝信软件(武汉)有限公司 | System for steel mill centrifugal pump frequency conversion control |
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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: 20160120 Termination date: 20160514 |