CN2126878Y - Middle, high voltage three-way blade centrifugal energy-saving fan - Google Patents
Middle, high voltage three-way blade centrifugal energy-saving fan Download PDFInfo
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- CN2126878Y CN2126878Y CN 92212220 CN92212220U CN2126878Y CN 2126878 Y CN2126878 Y CN 2126878Y CN 92212220 CN92212220 CN 92212220 CN 92212220 U CN92212220 U CN 92212220U CN 2126878 Y CN2126878 Y CN 2126878Y
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Abstract
The utility model relates to a middle, high voltage three-way blade centrifugal energy-saving fan. An impeller is provided with a three-way blade; a dividing-combining with the angle of 125 DEG-140 DEG is arranged on the volute of fan; a damping bottom frame is provided. Thus the impeller failure of the fan can be timely discovered; the maintenance is convenient; the fan efficiency can be increased by 2-4%; the wind pressure can be increased by 8 %; the characteristic curve can be extended by 4-8 %; the aerodynamic noise can be decreased by 3dB (A) and the service life of the blade can be extended. The utility model is suitable for air draught and dust removing of the draft blower and the blast blower of the power boiler industry, the building material industry and the metallurgical industry.
Description
The utility model technical field belongs to centrifugal fan, particularly a kind of middle and high pressure ternary blade centrifugal fan.
Current centrifugal fan commonly used, their blade are plate shaped or columniform, and efficient is lower, and blower fan when installing support be directly installed on the concrete foundation, be difficult to find impeller failure, also be difficult to maintenance.
The utility model provides a kind of centrifugal fan of ternary blade, makes blower fan that higher efficient be arranged, and is easy to early detection impeller failure and for ease of maintenaince.
The utility model is finished with following mode: this blower fan is made of support, motor, coupling, bearing support, spiral case, impeller, air intake slip ring and louver and spring shock absorption underframe.Support is installed on the spring shock absorption underframe, and deciliter face between upper and lower two of the spiral case is 125 °～140 ° angles.Ternary blade is housed, ternary blade inlet angle β on the impeller
1Be 21 °～27 °, exit angle β
2Be 28 °～85 °, 13 °～35 ° angles of spatial warping scope, louver is the guiding register, its inlet diameter is 1.3～1.5 times of impeller inlet diameter; Perhaps with register be 90 ° inlet box basically, its wind-guiding turning angle α
1The angle is about 80 °; Wind-guiding turning angle α
2The angle is about 140 °.The middle inlet angle β that presses the ternary blade of the centrifugal energy-saving fan of ternary blade
1Be 21 °～25 °, exit angle β
2Be 28 °～32 °, 13 °～33 ° angles of spatial warping scope.The ternary blade inlet section of the centrifugal energy-saving fan of high pressure ternary blade is divided into distortion board-type, inlet angle β
1Be 23 °～27 °, 15 °～35 ° of spatial warping scopes, the exit portion of blade is curved antecurvature, the radius of curvature r of arc
2It is 0.18～0.25 times of outlet diameter of impeller.Exit angle β
2It is 75 °～85 °.The radius of curvature r of the shrouding disc of impeller is 0.15～0.25 times of outlet diameter of impeller.The quantity of ternary blade is 8～20.
This blower fan is owing to adopt undercarriage having shock absorption function, and when the blade of blower fan is worn or other reason when damaging, the dynamic balancing of impeller worsens, and can show (available automatic-control instrument supervision) from the amplitude of fan noise and undercarriage having shock absorption function, make operator's handling failure in time.When carrying out Maintenance and Repair, the repair time is shortened in whole replacing rapidly.The spiral case of this blower fan because deciliter face at 125 °～140 ° of angles is arranged, in motionless spiral case main body and under the situation of airduct, can therefrom vertically hang out impeller, convenient maintenance and shortening repair time.The blade of impeller changes the spatial warping type that designs with Theory of Three-dimensional Flowing into from cylinder type, and not only the import impact loss reduces, even the flow losses in the flow losses of Ye Daozhong and the spiral case behind the impeller also will reduce.The efficient of blower fan can improve 2～4%, the corresponding raising 8% of blast, aerodynamic noise has reduced 3dB(A), characteristic curve expansion 4%～6% because impact loss reduces, is prolonged the working life of blade.
The centrifugal energy-saving fan plan view of the middle and high pressure ternary blade of Fig. 1
Fig. 2 the utility model right elevation
Fig. 3 the utility model left view
90 ° of inlet box schematic representation of Fig. 4 the utility model band register
The left view of Fig. 5 the utility model Fig. 4
Fig. 6 the utility model Middle pressure draught fan impeller sectional view
Fig. 7 the utility model Fig. 6 left view
Fig. 8 the utility model high pressure positive blower impeller sectional view
Fig. 9 the utility model Fig. 8 left view
Below in conjunction with accompanying drawing the utility model is described in further detail: the centrifugal energy-saving fan of middle and high pressure ternary blade, by undercarriage having shock absorption function (1), support (2), motor (3), coupling (4), bearing support (5), spiral case (6), impeller (7), air intake slip ring (8) and louver (9) formation, louver (9) two kinds of structures are arranged, can select for the user.A kind of is the guiding register, and its inlet diameter is 1.4 times of impeller (7) inlet diameter, and is simple and reliable for structure, can manually or automatically regulate under the condition of not stopping.But occupied ground is bigger.Another kind be the band register be 90 ° inlet box basically, its top is register, the bottom is an inlet box.Its wind-guiding turning angle α
1The angle about 80 °, wind-guiding turning angle α
2The angle about 140 °, in the inlet box air-flow change 90 ° curved very steady, guarantee that the impeller inlet flow pattern is even, air dynamic behaviour is greatly improved, efficient increases by 4%, occupied ground is economized, and can save investment.
Spiral case (6) has 135 ° of angle deciliter faces, in motionless spiral case main body and under the situation of airduct, can therefrom vertically hang out impeller (7), convenient maintenance.
Impeller (7) is made up of wheel disc (10), blade (11), core wheel (12), key (13), axle (14) and shrouding disc (15).The impeller of Middle pressure draught fan (7) has the blade (11) of 10 double curvaturies, inlet blade angle β
1Be 23 °, exit angle β
2Be 30 °, 15 °～31 ° angles of spatial warping scope, shrouding disc (15) radius of curvature r is 0.18 times of impeller (7) outlet diameter.The impeller of high pressure positive blower (7) has the blade (11) of 16 double curvaturies.The inlet section of blade (11) is divided into distortion board-type, inlet angle β
1Be 25 °, 17 °～33 ° angles of spatial warping scope.The exit portion of blade is curved antecurvature, the radius of curvature r of arc
2Be 0.224 times of impeller (7) outlet diameter, exit angle β
2It is 80 °.And at exit portion configuration revolution vaneless diffuser, the dynamic pressure that will export that can be more is converted into static pressure with less loss.Fan efficiency increases by 7%, and the changes in flow rate scope and the pressure in economic work district all have increase, and stable work area also has increase, and characteristic curve smoother, hump reduce.
Produce blower fan commonly used with present technique following class is arranged: air quantity is at 10000～100000 meters
3/ time, 110000～300000 meters
3/ time, 310000～600000 meters
3In/time, blast is at 180～250mmH
2O, 260～350mmH
2O 360～550mmH
2O is suitable for the air blast and the air inducing dedusting of utility boiler, building materials, smelter and uses.
Claims (6)
1, the centrifugal energy-saving fan of a kind of middle and high pressure ternary blade, it is made of support, motor, spiral case, impeller, air intake slip ring and louver, it is characterized in that support (2) is installed on the spring shock absorption underframe (1), deciliter face between upper and lower two of the spiral case (6) is 125 °～140 ° angles, ternary blade (11) is housed, ternary blade inlet angle β on the impeller (7)
1Be 21 °～27 °, exit angle β
2Be 28 °～85 °, 13 °～35 ° angles of spatial warping scope.
2, according to the described blower fan of claim 1, it is characterized in that louver is a guiding register (9), its inlet diameter is 1.3～1.5 times of impeller (7) inlet diameter, or the band register is 90 ° inlet box (9A) basically, its wind-guiding turning angle α
1The angle about 80 °, wind-guiding turning angle α
2The angle is about 140 °.
3,, it is characterized in that the inlet angle β of the ternary blade (11) of middle pressure, the centrifugal energy-saving fan of ternary blade according to the described blower fan of claim 1
1=21 °～25 °, exit angle β
2=28 °～32 °, 13 °～33 ° angles of spatial warping scope.
4,, it is characterized in that ternary blade (11) inlet section of the centrifugal energy-saving fan of high pressure ternary blade is divided into distortion board-type, inlet angle β according to the described blower fan of claim 1
1Be 23 °～27 °, 15 °～35 ° of spatial warping scopes, the exit portion of blade is curved antecurvature, the radius of curvature r of arc
2Be 0.18～0.25 times of outlet diameter of impeller (7), exit angle β
2It is 75 °～85 °.
5, according to the described blower fan of claim 1, the radius of curvature r that it is characterized in that the shrouding disc (15) of impeller (7) is 0.15～0.25 times of outlet diameter of impeller (7).
6, according to the described blower fan of claim 1, the quantity that it is characterized in that ternary blade (11) is 8～20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92212220 CN2126878Y (en) | 1992-02-13 | 1992-02-13 | Middle, high voltage three-way blade centrifugal energy-saving fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92212220 CN2126878Y (en) | 1992-02-13 | 1992-02-13 | Middle, high voltage three-way blade centrifugal energy-saving fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2126878Y true CN2126878Y (en) | 1993-02-10 |
Family
ID=33763359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92212220 Expired - Fee Related CN2126878Y (en) | 1992-02-13 | 1992-02-13 | Middle, high voltage three-way blade centrifugal energy-saving fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2126878Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850960A (en) * | 2014-03-24 | 2014-06-11 | 江苏常净环保科技有限公司 | Centrifugal fan for dust collector |
| CN103973058A (en) * | 2014-05-20 | 2014-08-06 | 江苏远中电机股份有限公司 | Asynchronous motor for blender |
| CN107642491A (en) * | 2017-11-02 | 2018-01-30 | 洛阳北玻台信风机技术有限责任公司 | Motor-car, the cooling of high ferro tractive transformer fluidize centrifugal blower with ternary |
| CN110439834A (en) * | 2019-08-23 | 2019-11-12 | 洛阳北玻台信风机技术有限责任公司 | A kind of ternary fluidisation centrifugal blower for annealing furnace |
-
1992
- 1992-02-13 CN CN 92212220 patent/CN2126878Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850960A (en) * | 2014-03-24 | 2014-06-11 | 江苏常净环保科技有限公司 | Centrifugal fan for dust collector |
| CN103973058A (en) * | 2014-05-20 | 2014-08-06 | 江苏远中电机股份有限公司 | Asynchronous motor for blender |
| CN103973058B (en) * | 2014-05-20 | 2016-08-17 | 江苏远中电机股份有限公司 | Blender asynchronous motor |
| CN107642491A (en) * | 2017-11-02 | 2018-01-30 | 洛阳北玻台信风机技术有限责任公司 | Motor-car, the cooling of high ferro tractive transformer fluidize centrifugal blower with ternary |
| CN107642491B (en) * | 2017-11-02 | 2024-03-12 | 洛阳北玻三元流风机技术有限公司 | Ternary fluidization centrifugal fan for cooling motor car and high-speed rail traction transformer |
| CN110439834A (en) * | 2019-08-23 | 2019-11-12 | 洛阳北玻台信风机技术有限责任公司 | A kind of ternary fluidisation centrifugal blower for annealing furnace |
| CN110439834B (en) * | 2019-08-23 | 2024-02-02 | 洛阳北玻三元流风机技术有限公司 | Ternary fluidization centrifugal fan for toughening furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |