CN103423198A - Air inlet prerotator - Google Patents
Air inlet prerotator Download PDFInfo
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- CN103423198A CN103423198A CN2013103360023A CN201310336002A CN103423198A CN 103423198 A CN103423198 A CN 103423198A CN 2013103360023 A CN2013103360023 A CN 2013103360023A CN 201310336002 A CN201310336002 A CN 201310336002A CN 103423198 A CN103423198 A CN 103423198A
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- outer ring
- coupling
- stator
- described fixedly
- prerotator
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Abstract
The invention discloses an air inlet prerotator. The air inlet prerotator comprises fixed outer rings, fixed inner rings, a plurality of connecting rods, guide vanes, rotating rings and driving mechanisms, wherein the fixed outer rings and the fixed inner rings are arranged coaxially, the connecting rods are used for connecting the fixed outer rings with the fixed inner rings, the two ends of the guide vanes are arranged on the fixed outer rings and the fixed inner rings in a rotating mode respectively, the peripheral parts of the outer sides of the fixed outer rings are sleeved with the rotating rings respectively, and the driving mechanisms are used for driving the guide vanes to rotate. According to the air inlet prerotator, the guide vanes have high stiffness and do not deform when impacted by major air flow, therefore, the opening of vane bodies on the guide vanes is easier to adjust, the vane bodies are higher in adjustment accuracy, and the flow regulation of the air inlet prerotator is more accurate; in this way, the consistency between flow and a design value of the vane bodies on the guide vanes with the practical opening is ensured, accurate data can be provided for a control system, energy loss at the time of flow regulation in the prior art is avoided, and the work efficiency of a fan provided with the air inlet prerotator will be improved greatly.
Description
Technical field
The present invention relates to a kind of entry spin device.
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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 the variable working condition condition, just must reasonably regulate it.At present, for the double suction fan of large flow, usually adopt hydraulic couplers to regulate, or adopt the method that adjustment doors is installed in its intake grill front to realize regulating, so all can cause larger energy loss.
In addition, in prior art, entry spin device as adjustment doors is mostly the entire combination device, its adjusting vane is single supporting type basically, cause its rigidity poor, easily deform when gas shock, causing pre-cyclone adjusting vane aperture when closure can not be zero, and also have deviation in certain aperture down-off, the design of the control system about flow control is caused to certain difficulty.
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Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, 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 used in the present invention 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, the two ends of each described 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, also be arranged with rotationally turning collar on the outside of described fixedly outer ring, also be provided with a plurality of driving mechanisms that are respectively used to drive described a plurality of stator rotations on turning collar.
Preferably, offer the through hole for matching with installation shaft axially run through along it on described fixedly inner ring, between the outside perimembranous of described installation shaft and described through hole, also be 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 be 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, be fixedly provided with the second coupling on described axial region, 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 present invention compared with prior art has following advantages: a kind of entry spin device of the present invention, wherein by its structure is optimized, improved the rigidity of stator, it all can not deformed when running into larger gas shock, this makes the aperture of stator upper blade more easily regulate and has a 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 the 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.
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The accompanying drawing explanation
The main TV structure schematic diagram that accompanying drawing 1 is prerotator of the present invention;
Accompanying drawing 2 is looked cross-sectional schematic for the right side of prerotator of the present invention;
The left TV structure schematic diagram that accompanying drawing 3 is prerotator of the present invention;
The stereogram that accompanying drawing 4 is prerotator of the present invention.
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.
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Embodiment
Below in conjunction with accompanying drawing and preferred embodiment of the present invention, technological scheme of the present invention 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 of outer ring 1 axial ends 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 coaxially is 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 the 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 is more easily regulated and is had 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 the 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, be fixedly provided with the second coupling 64 on axial region 41, 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 fixedly the shaft axis of outer ring 1 be 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 makes the blade opening of stator 4 be adjusted.
Due to prerotator be mounted to position on blower fan tend to blower fan on the installation shaft (not shown) interfere, thereby usually prerotator is arranged on installation shaft, therefore, fixedly on inner ring 2, offer the through hole axially run through along it, this through hole should match with installation shaft, Sealing 7 is set simultaneously between the hole wall of the outside of installation shaft perimembranous and through hole, as shown in Figure 2, so just, can when guaranteeing the 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 also is 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 first are installed again, install more convenient, and follow-up more convenient when the complete machine with prerotator is debugged.
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Above-described embodiment is only explanation technical conceive of the present invention and characteristics, and its purpose is to allow the person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
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, the two ends of each described 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, also be arranged with rotationally turning collar on the outside of described fixedly outer ring, also be provided with a plurality of driving mechanisms that are respectively used to drive described a plurality of stator rotations on turning collar.
2. a kind of entry spin device according to claim 1, is characterized in that: offer the through hole for matching with installation shaft axially run through along it on described fixedly inner ring, between the outside perimembranous of described installation shaft and described through hole, also be 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 upwards.
4. a kind of entry spin device according to claim 1, it is characterized in that: described fixedly outer ring is hollow cylinder shape, described fixedly outer ring by least two arc pieces along circumferentially fixing and be spliced.
5. a kind of entry spin device according to claim 4, it 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 be 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, be fixedly provided with the second coupling on described axial region, 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 the described a kind of entry spin device of 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 |
|---|---|---|---|
| CN201310336002.3A CN103423198B (en) | 2013-08-05 | 2013-08-05 | A kind of air inlet prerotator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310336002.3A CN103423198B (en) | 2013-08-05 | 2013-08-05 | A kind of air inlet prerotator |
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| CN103423198A true CN103423198A (en) | 2013-12-04 |
| CN103423198B CN103423198B (en) | 2016-03-02 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3542484A (en) * | 1968-08-19 | 1970-11-24 | Gen Motors Corp | Variable vanes |
| CN101415951A (en) * | 2006-03-31 | 2009-04-22 | Abb涡轮系统有限公司 | Preswirl guide device |
| CN201358961Y (en) * | 2009-01-21 | 2009-12-09 | 长沙埃尔压缩机有限责任公司 | Inlet prerotator and high-speed centrifugal blower therewith |
| US20120263586A1 (en) * | 2009-11-03 | 2012-10-18 | Ingersoll-Rand Company | Inlet guide vane for a compressor |
| CN102996522A (en) * | 2012-11-26 | 2013-03-27 | 浙江盾安人工环境股份有限公司 | linkage structure of adjustable guide vanes and adjustable diffuser as well as centrifugal refrigerating compressor |
| CN203404131U (en) * | 2013-08-05 | 2014-01-22 | 苏州欧拉工程技术有限公司 | Air intake prerotator |
-
2013
- 2013-08-05 CN CN201310336002.3A patent/CN103423198B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3542484A (en) * | 1968-08-19 | 1970-11-24 | Gen Motors Corp | Variable vanes |
| CN101415951A (en) * | 2006-03-31 | 2009-04-22 | Abb涡轮系统有限公司 | Preswirl guide device |
| CN201358961Y (en) * | 2009-01-21 | 2009-12-09 | 长沙埃尔压缩机有限责任公司 | Inlet prerotator and high-speed centrifugal blower therewith |
| US20120263586A1 (en) * | 2009-11-03 | 2012-10-18 | Ingersoll-Rand Company | Inlet guide vane for a compressor |
| CN102996522A (en) * | 2012-11-26 | 2013-03-27 | 浙江盾安人工环境股份有限公司 | linkage structure of adjustable guide vanes and adjustable diffuser as well as centrifugal refrigerating compressor |
| CN203404131U (en) * | 2013-08-05 | 2014-01-22 | 苏州欧拉工程技术有限公司 | Air intake prerotator |
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| Publication number | Publication date |
|---|---|
| CN103423198B (en) | 2016-03-02 |
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Effective date of registration: 20180105 Address after: 215400 Jiangsu Province, Suzhou economic and Technological Development Zone Taicang City Temple Road No. 18 Patentee after: Suzhou Euler Turbine Machinery Co., Ltd. Address before: 215127 Suzhou City, Suzhou, Jiangsu, Luzhi Town, Ming City Road, No. 16 (Science and Technology Park) Patentee before: Suzhou Oula Engineering Technology Co., Ltd. |