CN203404131U - Air intake prerotator - Google Patents
Air intake prerotator Download PDFInfo
- Publication number
- CN203404131U CN203404131U CN201320473777.0U CN201320473777U CN203404131U CN 203404131 U CN203404131 U CN 203404131U CN 201320473777 U CN201320473777 U CN 201320473777U CN 203404131 U CN203404131 U CN 203404131U
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- outer ring
- prerotator
- inner ring
- coupling
- ring
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Abstract
The utility model discloses an air intake prerotator which comprises a fixing outer ring, a fixing inner ring, a plurality of connecting rods, a guide blade, a rotation ring and a driving mechanism, wherein the fixing outer ring and the fixing inner ring are coaxially arranged, the connecting rods are used for being connected with the fixing outer ring and the fixing inner ring, the two ends of the guide blade are rotatably arranged on the fixing outer ring and the fixing inner ring respectively, the rotation ring is arranged on the outer side circumference of the fixing outer ring, and the driving mechanism is used for driving the guide blade to rotate. The prerotator has good rigidity, and cannot deform when the prerotator encounters high airflow shock, therefore the opening degree of vanes on the guide blade is easier to adjust, the prerotator has higher adjustment precision, and flow regulation of the prerotator is more precise. Consistency of flows of the vanes on the guide blade under the actual opening degree and a design value is guaranteed, accurate data can be provided for a control system, energy loss when flow regulation is conducted in the prior art is avoided, and work efficiency of a draught fan provided with the air intake prerotator will be substantially improved.
Description
Technical field
the utility model relates to a kind of entry spin device.
Background technique
along with the fast development of national economy, the application of blower, compressor is also more and more extensive.In order to make blower, compressor meet efficient, energy-conservation design concept under variable working condition condition, just must reasonably regulate it.At present, for the double suction fan of large flow, conventionally adopt hydraulic couplers to regulate, or adopt the method that adjustment doors is installed before its intake grill to realize to regulate, so all can cause larger energy loss.
in addition, in prior art, entry spin device as adjustment doors is mostly entire combination device, its adjusting vane is single supporting type substantially, cause its rigidity poor, when gas shock, easily deform, causing pre-cyclone adjusting vane aperture when closure can not be zero, and also there is deviation in certain aperture down-off, the design of the control system about flow control is caused to certain difficulty.
Summary of the invention
the purpose of this utility model is the shortcoming that overcomes prior art, and the entry spin that a kind of flow loss is low and working efficiency is higher device is provided.
for achieving the above object, the technical solution adopted in the utility model is: a kind of entry spin device, described prerotator comprises the fixedly outer ring with hollow cavity, coaxially be arranged on the fixedly inner ring in the inner chamber of described fixedly outer ring, for connecting many connecting rods of described fixedly inner ring and described fixedly outer ring, the two axial ends of described fixedly outer ring runs through mutually and the two axial ends sealing of described fixedly inner ring arranges, described prerotator also comprises a plurality of stators, described in each, the two ends of stator are arranged on respectively described fixedly outer ring rotationally, on described fixedly inner ring, a plurality of described stators are along described fixedly outer ring, circumferentially distributing separately of described fixedly inner ring, on the outside of described fixedly outer ring, be also arranged with rotationally turning collar, on turning collar, be also provided with a plurality of driving mechanisms that are respectively used to drive described a plurality of stator rotations.
preferably, on described fixedly inner ring, offer the through hole for matching with installation shaft axially running through along it, between the outside perimembranous of described installation shaft and described through hole, be also provided with Sealing.
preferably, a plurality of described connecting rods are distributed in making progress in week of described fixedly outer ring, described fixedly inner ring at intervals.
preferably, described fixedly outer ring is hollow cylinder shape, and described fixedly outer ring is circumferentially fixed and is spliced by least two arc pieces edges.
further preferably, described fixedly outer ring is fixed and is spliced by upper arc piece, arc lower piece.
preferably, described driving mechanism comprises the first coupling shaft being connected on described turning collar, one end is connected to the first coupling on described the first coupling shaft rotationally, described stator has for being rotatably connected on the axial region on described fixedly outer ring, on described axial region, be fixedly provided with the second coupling, described driving mechanism also comprises for connecting described the first coupling, the second coupling shaft of described the second coupling, the shaft axis of the shaft axis of described the first coupling shaft and described fixedly outer ring is parallel to each other, the shaft axis of the shaft axis of described the second coupling shaft and described the above axial region of stator is parallel to each other.
as a kind of concrete mode of execution, the number of described driving mechanism equates with the number of described stator.
utilization due to technique scheme, the utility model compared with prior art has following advantages: a kind of entry spin device of the present utility model, wherein by its structure is optimized, improved the rigidity of stator, it all can not deformed when running into larger gas shock, this more easily regulates the aperture of stator upper blade and has higher degree of regulation, thereby make the Flow-rate adjustment of prerotator more accurate, this has guaranteed the flow of stator upper blade under actual aperture and the conformity of design load, can provide data accurately for control system, energy loss while having avoided Flow-rate adjustment in prior art, the working efficiency that the blower fan of this prerotator is installed will significantly be improved.Like this, under same working efficiency, the axial dimension of complete machine can dwindle the complete cost that has reduced unit significantly.
Accompanying drawing explanation
the main TV structure schematic diagram that accompanying drawing 1 is prerotator of the present utility model;
accompanying drawing 2 is for looking cross-sectional schematic in the right side of prerotator of the present utility model;
the left TV structure schematic diagram that accompanying drawing 3 is prerotator of the present utility model;
the stereogram that accompanying drawing 4 is prerotator of the present utility model.
wherein, 1, fixing outer ring; 11, upper arc piece; 12, arc lower piece; 2, fixing inner ring; 3, connecting rod; 4, stator; 41, axial region; 5, turning collar; 6, driving mechanism; 61, the first coupling shaft, 62, the first coupling; 63, the second coupling shaft; 64, the second coupling; 7, Sealing.
Embodiment
below in conjunction with accompanying drawing and preferred embodiment of the present utility model, the technical solution of the utility model is further elaborated.
referring to the entry spin device shown in Fig. 1～4, this prerotator comprises fixedly outer ring 1, fixing inner ring 2, and inner chamber and its two axial ends that fixedly outer ring 1 has a hollow shape run through mutually, and fixedly two axial end portions of outer ring 1 are respectively as suction port and the air outlet of this prerotator.Fixedly the sealing of the two axial ends of inner ring 2 arranges, fixedly inner ring 2 is coaxially arranged in the inner chamber of fixing outer ring 1, fixedly inner ring 2 is fixedly connected by many connecting rods 3 with fixing outer ring 1, and these a plurality of connecting rods 3 are distributed in fixedly outer ring 1 at intervals, fixedly the week of inner ring 2 makes progress.
shown in Fig. 1～4, this prerotator also comprises a plurality of stators 4, the two ends of each stator 4 are arranged on respectively fixedly outer ring 1 and fixedly on inner ring 2 rotationally, these a plurality of stators 4 are along fixedly outer ring 1, the fixedly circumferentially distribution separately of inner ring 2, fixedly outer ring 1 and fixedly inner ring 2 stator 4 supporting is provided simultaneously, make stator 4 there is good rigidity.Also be provided with rotationally turning collar 5 fixedly going up laterally in the week of outer ring 1, this turning collar 5 is provided with a plurality of driving mechanisms 6 that are respectively used to drive above-mentioned a plurality of stator 4 rotations, and stator 4 is adjusted at time rotational blade opening.
like this, when air-flow flows into prerotator from suction port, because the blade on stator 4 has better rigidity, blade can not deform because of the impact of air-flow, the aperture of stator 4 upper blades more easily regulates and has a higher degree of regulation, this makes the Flow-rate adjustment of prerotator more accurate, the blade of stator 4 its aperture when closure also can reach null value, this has guaranteed the flow of stator 4 upper blades under actual aperture and the conformity of design load, for control system provides data accurately, energy loss while having avoided Flow-rate adjustment in prior art, the working efficiency that the blower fan of this prerotator is installed will significantly be improved.Like this, under same ability to work, the axial dimension of complete machine can dwindle the complete cost that has reduced unit significantly.
shown in Figure 3, both numbers of driving mechanism 6 and stator 4 are consistent and corresponding one by one.In the present embodiment, driving mechanism 6 comprises rotation or is fixedly attached to the first coupling shaft 61 on turning collar 5, one end connects the first coupling 62 on the first coupling shaft 61 rotationally, stator 4 has for being rotatably connected on the axial region 41 on fixing outer ring 2, on axial region 41, be fixedly provided with the second coupling 64, this driving mechanism 6 also comprises for connecting the second coupling shaft 63 of the first coupling 61 and the second coupling 64, the shaft axis of the first coupling shaft 61 and the fixedly shaft axis of outer ring 1 are parallel to each other, on the shaft axis of the second coupling shaft 63 and stator 4, the shaft axis of axial region 41 is parallel to each other, like this, when outside power plant drive turning collar 5 rotation, the first coupling shaft 61 drives the first coupling 62, and drive the second coupling 64 to rotate by the second coupling shaft 63, the second coupling 64 drives axial regions 41 around himself shaft axis rotation and the blade opening of stator 4 is adjusted.
due to prerotator be mounted to position on blower fan tend to blower fan on installation shaft (not shown) interfere, thereby conventionally prerotator is arranged in installation shaft, therefore, fixedly on inner ring 2, offer the through hole axially running through along it, this through hole should match with installation shaft, between the outside of installation shaft perimembranous and the hole wall of through hole, Sealing 7 is set simultaneously, as shown in Figure 2, so just, can when guaranteeing prerotator normal mounting, guarantee the fixedly sealing at inner ring 2 places, avoid the return loss of air-flow.Here, fixedly inner ring 2 is set to hollow cylindrical, fixedly outer ring 1 is also set to hollow cylinder shape, fixedly outer ring 1 is fixed and is spliced by upper arc piece 11 and arc lower piece 12, similarly, fixedly inner ring 2, Sealing 7 also can be made as two-part, are spliced and combined after each parts are first installed again, install more convenient, and follow-up more convenient when debugging with the complete machine of prerotator.
above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (7)
1. an entry spin device, it is characterized in that: described prerotator comprises the fixedly outer ring with hollow cavity, coaxially be arranged on the fixedly inner ring in the inner chamber of described fixedly outer ring, for connecting many connecting rods of described fixedly inner ring and described fixedly outer ring, the two axial ends of described fixedly outer ring runs through mutually and the two axial ends sealing of described fixedly inner ring arranges, described prerotator also comprises a plurality of stators, described in each, the two ends of stator are arranged on respectively described fixedly outer ring rotationally, on described fixedly inner ring, a plurality of described stators are along described fixedly outer ring, circumferentially distributing separately of described fixedly inner ring, on the outside of described fixedly outer ring, be also arranged with rotationally turning collar, on turning collar, be also provided with a plurality of driving mechanisms that are respectively used to drive described a plurality of stator rotations.
2. a kind of entry spin device according to claim 1, is characterized in that: on described fixedly inner ring, offer the through hole for matching with installation shaft axially running through along it, between the outside perimembranous of described installation shaft and described through hole, be also provided with Sealing.
3. a kind of entry spin device according to claim 1, is characterized in that: the week that a plurality of described connecting rods are distributed in described fixedly outer ring, described fixedly inner ring at intervals makes progress.
4. a kind of entry spin device according to claim 1, is characterized in that: described fixedly outer ring is hollow cylinder shape, and described fixedly outer ring is circumferentially fixed and is spliced by least two arc pieces edges.
5. a kind of entry spin device according to claim 4, is characterized in that: described fixedly outer ring is fixed and is spliced by upper arc piece, arc lower piece.
6. a kind of entry spin device according to claim 1, it is characterized in that: described driving mechanism comprises the first coupling shaft being connected on described turning collar, one end is connected to the first coupling on described the first coupling shaft rotationally, described stator has for being rotatably connected on the axial region on described fixedly outer ring, on described axial region, be fixedly provided with the second coupling, described driving mechanism also comprises for connecting described the first coupling, the second coupling shaft of described the second coupling, the shaft axis of the shaft axis of described the first coupling shaft and described fixedly outer ring is parallel to each other, the shaft axis of the shaft axis of described the second coupling shaft and described the above axial region of stator is parallel to each other.
7. according to a kind of entry spin device described in claim 1 or 6, it is characterized in that: the number of described driving mechanism equates with the number of described stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473777.0U CN203404131U (en) | 2013-08-05 | 2013-08-05 | Air intake prerotator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473777.0U CN203404131U (en) | 2013-08-05 | 2013-08-05 | Air intake prerotator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404131U true CN203404131U (en) | 2014-01-22 |
Family
ID=49940069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320473777.0U Expired - Fee Related CN203404131U (en) | 2013-08-05 | 2013-08-05 | Air intake prerotator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203404131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423198A (en) * | 2013-08-05 | 2013-12-04 | 苏州欧拉工程技术有限公司 | Air inlet prerotator |
-
2013
- 2013-08-05 CN CN201320473777.0U patent/CN203404131U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423198A (en) * | 2013-08-05 | 2013-12-04 | 苏州欧拉工程技术有限公司 | Air inlet prerotator |
| CN103423198B (en) * | 2013-08-05 | 2016-03-02 | 苏州欧拉工程技术有限公司 | A kind of air inlet prerotator |
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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: 20140122 Termination date: 20160805 |