CN201425032Y - Frequency converting induced draft fan - Google Patents
Frequency converting induced draft fan Download PDFInfo
- Publication number
- CN201425032Y CN201425032Y CN2009201482078U CN200920148207U CN201425032Y CN 201425032 Y CN201425032 Y CN 201425032Y CN 2009201482078 U CN2009201482078 U CN 2009201482078U CN 200920148207 U CN200920148207 U CN 200920148207U CN 201425032 Y CN201425032 Y CN 201425032Y
- Authority
- CN
- China
- Prior art keywords
- draft fan
- induced draft
- frequency converting
- impeller
- casing
- 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
The utility model relates to a frequency converting induced draft fan, in particular to the industry energy-saving field. The technical problem needed to be resolved by the utility model includes providing a frequency converting induced draft fan capable of reducing power waste. The frequency converting induced draft fan comprises a casing, an impeller, a transmission case, a coupler and an electric motor, wherein the transmission case is connected onto the electric motor through the coupler, one end of the transmission case is connected with the impeller, the casing is sleeved outside the impeller, an air inlet is arranged on one side of the casing, and a power input end of the electric motor is connected with a frequency converter capable of adjusting rotating speed of the electric motor. Exhaust capacity of the frequency converting induced draft fan can be changed through changing the rotating speed of the electric motor, thereby reducing full load time of the frequency converting induced draft fan, and then reducing power consumption.
Description
Technical field
The utility model relates to a kind of induced draught fan, particularly a kind ofly uses the frequency conversion induced draught fan that converter technique reaches energy-conservation purpose.
Background technique
Blower fan is that application quantity is big, the versatility machinery of wide application, consume electric weight with the matched motor of blower fan and account for 20% of national gross generation, the design of the conventional fan flow that uses at present all designs with the maximum quantity of wind demand, its adjustment mode adopts the baffle plate mode to control, this control mode is regulated the exhaust outlet size and is achieved the goal under the situation that does not reduce induced draught fan power, a large amount of waste of energy are overcoming on the resistance of baffle plate, cause the power consumption rate height, influence the economical operation of unit.
The model utility content
The technical problems to be solved in the utility model provides a kind of frequency conversion induced draught fan of energy conservation of power.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of frequency conversion induced draught fan, comprise casing, impeller, transmission case, coupling, motor, transmission case is connected on the motor by coupling, one termination of transmission case has impeller, and the outside of impeller is with casing, in the front side of casing intake grill is arranged, its innovative point is: the power input of motor is connected to frequency variator, and the controlling device of can regulate motor speed is arranged on described frequency variator.
Advantage of the present utility model is: use the mode of the rotating speed that the frequency variator of can regulate motor speed can be by regulating motor to reach the purpose of control induced draught fan air output, saved electric power.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:
Fig. 1 is the structural representation of frequency conversion induced draught fan of the present utility model.
Embodiment
As shown in Figure 1, this structure comprises casing 1, impeller 2, transmission case 3, coupling 4, motor 5, transmission case 3 is connected on the motor 5 by coupling 4, the other end of transmission case 3 is connected to impeller 2, the outside of impeller 2 is with casing 1, in the front side of casing 1 intake grill 7 is arranged, motor 5 rotates by transmission case 3 impeller 2, air enters casing 1 from intake grill 7, rotational flow under the effect of impeller 2, because action of centrifugal force is radially got rid of to shell wall, produce certain pressure thereupon there, tangentially discharge after compiling by casing 1, be reached for the purpose of equipment air inducing, when equipment air quantity demand reduces, regulate the rotating speed of described controlling device 8 control motor 5, this moment, the rotating speed of impeller 2 also changed, and the air quantity of therefore discharging casing 1 also changes thereupon, we just can reduce the fully loaded operating time of described frequency conversion induced draught fan like this, have saved power consumption thereby reach.
Claims (1)
1. frequency conversion induced draught fan, comprise casing (1), impeller (2), transmission case (3), coupling (4), motor (5), described transmission case (3) is connected on the motor (5) by coupling (4), one termination of transmission case (3) has impeller (2), the outside of impeller (2) is with casing (1), side at casing (1) has intake grill (7), it is characterized in that: the power input of described motor (5) is connected to frequency variator (6), is connected with the regulator (8) of can regulate motor (5) rotating speed on described frequency variator (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201482078U CN201425032Y (en) | 2009-03-30 | 2009-03-30 | Frequency converting induced draft fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201482078U CN201425032Y (en) | 2009-03-30 | 2009-03-30 | Frequency converting induced draft fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425032Y true CN201425032Y (en) | 2010-03-17 |
Family
ID=42024477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201482078U Expired - Fee Related CN201425032Y (en) | 2009-03-30 | 2009-03-30 | Frequency converting induced draft fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201425032Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518593A (en) * | 2011-12-29 | 2012-06-27 | 浙江国联设备工程有限公司 | Improved large-size centrifugal fan device and mounting and constructing method thereof |
| CN114320976A (en) * | 2022-03-09 | 2022-04-12 | 南京深度***工程有限公司 | Centrifugal fan with flow and temperature regulation |
-
2009
- 2009-03-30 CN CN2009201482078U patent/CN201425032Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518593A (en) * | 2011-12-29 | 2012-06-27 | 浙江国联设备工程有限公司 | Improved large-size centrifugal fan device and mounting and constructing method thereof |
| CN114320976A (en) * | 2022-03-09 | 2022-04-12 | 南京深度***工程有限公司 | Centrifugal fan with flow and temperature regulation |
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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: 20100317 Termination date: 20120330 |