CN201170208Y - Energy-saving centrifugal type ventilation air fan for grain processing apparatus - Google Patents
Energy-saving centrifugal type ventilation air fan for grain processing apparatus Download PDFInfo
- Publication number
- CN201170208Y CN201170208Y CNU2008200658660U CN200820065866U CN201170208Y CN 201170208 Y CN201170208 Y CN 201170208Y CN U2008200658660 U CNU2008200658660 U CN U2008200658660U CN 200820065866 U CN200820065866 U CN 200820065866U CN 201170208 Y CN201170208 Y CN 201170208Y
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- grain processing
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- impeller
- processing equipment
- casing
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Abstract
The utility model discloses an energy-saving centrifugal fan applicable to grain processing equipment, comprising a supporting frame. A motor is connected to the supporting frame, an output shaft of the motor is connected with an impeller, the impeller is arranged in a shell of the centrifugal fan, and the shell is connected with an air inlet. The impeller comprises a front disc and a back disc which are distributed evenly along the circumference and connected with a straight vane, the included angle beta2A of an air outlet of the straight vane is 52 degrees+-1 degree, the straight vane is a quadrilateral and the length ratio of the four edges of the right angle trapezoid is that H0: H1: H2 : H3 equals to 34:29:21:29.5, wherein the edge H2 of the four edges is vertical to the edge H0. Because the blower adopts a motor direct-connected structure, and more importantly, the impeller of the blower adopts a straight vane with a new shape, and the included angle beta2A of the air outlet of the straight vane is changed so that the blower can satisfy the performance requirements of different ventilation networks in grain processing equipment, and has the advantages of compact structure, small floor space, wide performance adjusting range, convenient installation and maintenance, high efficiency, low power consumption and low cost.
Description
Technical field
The utility model belongs to grain processing equipment, is specifically related to a kind of energy-saving centrifugal formula ventilator that is used on the grain processing equipment.
Background technique
For a long time, the wind-force wind conveyer kind that China is used on the grain processing equipment is few, but wind-force wind conveyer or flow that present food supply food process equipment is selected for use are too big, or flow is too little, is difficult to adapt to the requirement of grain processing.The blower fan of extensive use is an old product 6-30 type blower fan on the grain processing equipment at present, this blower fan adopts belt transmission, its physical dimension is big, the layout at blade shape and air-out angle causes this fan delivery less than normal, add and be prone to putty man-hour, even fall problems such as material, make grain processing technology be difficult to the effect that reaches satisfied.If the raising air quantity, just necessary expanded motor power, thus cause the energy consumption in the course of working higher, increase processing cost.Simultaneously, blower fan during the black dirt that is detained on the periodic cleaning impeller, must be taken wind net and blower fan suction chamber apart in use for some time, and the cleaning maintenance is very inconvenient, influences the working life of blower fan greatly.
Summary of the invention
The purpose of this utility model is to provide a kind of energy-saving centrifugal formula ventilator, to address the above problem.
The technical solution of the utility model is: be used for the energy-saving centrifugal formula ventilator on the grain processing equipment, it comprises supporting frame, connect motor on the supporting frame, the output shaft of motor connects impeller, impeller is located in the centrifugal casing, casing connects intake grill, impeller comprises shroud and hub disk, evenly distribute along circumference between shroud and the hub disk and be connected prismatic blade, straight-vaned exhaust outlet angle β 2A is 52 ° ± 1 °, prismatic blade is a quadrilateral, and the length of four edges is than being H0: H1: H2: H3=34: 29: 21: 29.5, wherein limit H2 was vertical with limit H0.
Described casing is provided with deashing door.
Because this blower fan adopts motor direct connection examination structure, what is more important, the impeller of blower fan adopts the prismatic blade of new shape, change straight-vaned exhaust outlet angle β 2A, make this blower fan can satisfy different wind net performance requirements in the grain processing equipment, it has compact structure, floor space is little, installation, maintenance is convenient, efficient is high, and energy consumption is low, and cost is low.Flow is big, moderate pressure, and the property regulation scope is wide, stable working, characteristics such as reliable are applicable to that grain, cotton add the power in man-hour and carry.
Description of drawings
Fig. 1 the utility model energy-saving centrifugal formula ventilator profile schematic representation.
Fig. 2 the utility model energy-saving centrifugal formula ventilator structure schematic representation.
Fig. 3 blade wheel structure schematic representation.
Fig. 4 prismatic blade is arranged schematic representation.
Fig. 5 prismatic blade shape schematic representation.
The centrifugal casing aerodynamics of Fig. 6 sketch map schematic representation I.
The centrifugal casing aerodynamics of Fig. 7 sketch map schematic representation II.
Fig. 8 deashing door structural representation.
Embodiment
As shown in Figure 1, centrifugal fan comprises supporting frame 1, and supporting frame 1 has damping disc 2, and motor 3 is fastened on the supporting frame 1.Casing 4 is provided with deashing door 5.
As shown in Figure 2, the output shaft of motor 3 connects impeller 6, and impeller 6 is located in the centrifugal casing 4.Casing 4 connects intake grills, intake grill by the end of air intake and arc outlet air end with frustum air intake pipe 7 constitute, form air inlet chamber.
As shown in Figure 3, impeller 6 comprises shroud 8 and hub disk 9, and evenly distributing along circumference between shroud 8 and the hub disk 9 is connected prismatic blade 10.As shown in Figure 4, evenly distribute along circumference between shroud 8 and the hub disk 9 and be connected 12 prismatic blades 10.The exhaust outlet angle β 2A of prismatic blade 10 is 52 ° ± 1 °.
As shown in Figure 5, prismatic blade is a quadrilateral, and the length of four edges is than being H0: H1: H2: H3=34: 29: 21: 29.5, wherein limit H2 was vertical with limit H0.
Shown in Fig. 6,7, the shape of centrifugal casing, promptly the aerodynamics sketch map is of a size of: F1=6, F2=7, F3=8, F4=9, R=56, B7=65, Z=12.The intake grill maximum diameter φ 1 of aerodynamics sketch map dimension ratio air inlet chamber: the minimum major diameter φ 3 of intake grill: the exhaust outlet diameter phi 4 of air inlet chamber: the width B 6 of casing outlet: the outlet length B 7 of casing: the width B 3=100 of impeller: 58: 62.5: 55: 65: 31.
It can constitute DL5-60 series blower fan.
Respectively by 2P-5.5KW (range of flow: 3817～6998m
3/ h, total head scope 2685～2050Pa), 7.5KW (range of flow: 4695～8607m
3/ h, total head scope 3082～2354Pa), 11KW (range of flow: 6400～11807m
3/ h, total head scope 3806～2906Pa), 15KW (range of flow: 7455～13668m
3/ h, total head scope 4196～3204Pa), 18.5KW (range of flow: 8112～14873m
3/ h, total head scope 4439～3389Pa), 22KW (range of flow: 9048～16587m
3/ h, total head scope 4774～3645Pa), 30KW (range of flow: 11128～20402m
3/ h, total head scope 5480～3986Pa) and 37KW (range of flow: 12578～23060m
3/ h, the motor direct-drive of total head scope 5946～4325Pa).
It can constitute DL5-60 series blower fan.
As shown in Figure 8, the structure of deashing door 5 is: offer deashing on the enclosure wall 11
12, on deashing 12 inwalls thickening plate 13 is arranged, deashing door 5 is connected with enclosure wall 11 and thickening plate 13 by bolt 14.When regularly clearing up black dirt and maintenance, must not tear Air outlet net and blower fan air inlet chamber open, only open deashing door 5 and get final product, help improving the utilization efficiency of blower fan, prolong the working life of blower fan.The smooth running that while damping disc 2 can keep blower fan.
Claims (6)
1, a kind of energy-saving centrifugal formula ventilator that is used on the grain processing equipment, it comprises supporting frame, connect motor on the supporting frame, the output shaft of motor connects impeller, impeller is located in the centrifugal casing, casing connects intake grill, it is characterized in that impeller comprises shroud and hub disk, evenly distribute along circumference between shroud and the hub disk and be connected prismatic blade, straight-vaned exhaust outlet angle β 2A is 52 ° ± 1 °, prismatic blade is a quadrilateral, and the length of four edges is than being H0: H1: H2: H3=34: 29: 21: 29.5, wherein limit H2 was vertical with limit H0.
2, be used for energy-saving centrifugal formula ventilator on the grain processing equipment according to claim 1, it is characterized in that supporting frame has damping disc.
3, be used for energy-saving centrifugal formula ventilator on the grain processing equipment according to claim 1, it is characterized in that casing is provided with deashing door.
4, as being used for the energy-saving centrifugal formula ventilator on the grain processing equipment as described in claim 1 or 3, it is characterized in that offering on the enclosure wall ash removing port, on the ash removing port inwall thickening plate is arranged, deashing door is connected with enclosure wall and thickening plate by bolt.
5, be used for energy-saving centrifugal formula ventilator on the grain processing equipment according to claim 1, it is characterized in that between shroud and the hub disk evenly distributing along circumference is connected 12 prismatic blades.
6, be used for energy-saving centrifugal formula ventilator on the grain processing equipment according to claim 1, it is characterized in that aerodynamics sketch map dimension ratio is: the intake grill maximum diameter φ 1 of air inlet chamber: the minimum major diameter φ 3 of intake grill: the exhaust outlet diameter phi 4 of air inlet chamber: the width B 6 of casing outlet: the outlet length B7 of casing: the width B 3=100 of impeller: 58: 62.5: 55: 65: 31.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200658660U CN201170208Y (en) | 2008-03-06 | 2008-03-06 | Energy-saving centrifugal type ventilation air fan for grain processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200658660U CN201170208Y (en) | 2008-03-06 | 2008-03-06 | Energy-saving centrifugal type ventilation air fan for grain processing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201170208Y true CN201170208Y (en) | 2008-12-24 |
Family
ID=40209261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200658660U Expired - Fee Related CN201170208Y (en) | 2008-03-06 | 2008-03-06 | Energy-saving centrifugal type ventilation air fan for grain processing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201170208Y (en) |
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2008
- 2008-03-06 CN CNU2008200658660U patent/CN201170208Y/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20140306 |