CN103423198B - A kind of air inlet prerotator - Google Patents
A kind of air inlet prerotator Download PDFInfo
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- CN103423198B CN103423198B CN201310336002.3A CN201310336002A CN103423198B CN 103423198 B CN103423198 B CN 103423198B CN 201310336002 A CN201310336002 A CN 201310336002A CN 103423198 B CN103423198 B CN 103423198B
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- outer ring
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- prerotator
- fixing outer
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Abstract
<b> the invention discloses </b><bGreatT.Gre aT.GT air inlet prerotator, comprise the fixing outer ring of coaxial setting and fixing inner ring, for being connected and fixed many connecting rods of outer ring and fixing inner ring, two ends are arranged on the stator on described fixing outer ring and fixing inner ring respectively rotationally, be set in the turning collar in perimembranous outside fixing outer ring, for driving the driving mechanism of stator rotation, on this prerotator, stator has good rigidity, can not deform when running into larger gas shock, this makes the aperture of stator upper blade more easily regulate and have higher degree of regulation, thus make the Flow-rate adjustment of prerotator more accurate, which ensure that the flow of stator upper blade under actual aperture and the conformity of design load, data accurately can be provided for control system, avoid energy loss during Flow-rate adjustment in prior art, the working efficiency being provided with the blower fan of this prerotator will significantly be improved.</b>
Description
Technical field
the present invention relates to a kind of air inlet prerotator.
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 reasonably must regulate it.At present, the double suction fan for large discharge adopts hydraulic couplers to regulate usually, or adopts the method for installing adjustment doors before its intake grill to realize regulating, and 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, easily deform when gas shock, cause pre-cyclone adjusting vane aperture when closed can not be zero, and also there is deviation in certain aperture down-off, certain difficulty is caused to the design of the control system about flow control.
Summary of the invention
the object of the invention is the shortcoming overcoming prior art, provide a kind of flow loss low and the air inlet prerotator that working efficiency is higher.
for achieving the above object, the technical solution used in the present invention is: a kind of air inlet prerotator, described prerotator comprises the fixing outer ring with hollow cavity, coaxially be arranged on the fixing inner ring in the inner chamber of described fixing outer ring, for connecting many connecting rods of described fixing inner ring and described fixing outer ring, the two axial ends of described fixing outer ring runs through mutually and the sealing of the two axial ends of described fixing inner ring is arranged, described prerotator also comprises multiple stator, the two ends of each described stator are arranged on described fixing outer ring respectively rotationally, on described fixing inner ring, multiple described stator is along described fixing outer ring, the circumference of described fixing inner ring distributes separately, the outside of described fixing outer ring is also arranged with turning collar rotationally, turning collar is also provided with multiple driving mechanism being respectively used to drive described multiple stator rotation.
preferably, described fixing inner ring offering the through hole for matching with installation shaft axially run through along it, between the outside perimembranous of described installation shaft and described through hole, being also provided with Sealing.
preferably, multiple described connecting rod is distributed in the circumference of described fixing outer ring, described fixing inner ring at intervals.
preferably, described fixing outer ring is hollow cylinder shape, and described fixing outer ring is circumferentially fixed by least two arc blocks and is spliced.
further preferably, described fixing outer ring is fixed be spliced by upper arc block, arc lower block.
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 first coupling shaft rotationally, described stator has the axle portion for being rotatably connected on described fixing outer ring, described axle portion is fixedly provided with the second coupling, described driving mechanism also comprises for connecting described first coupling, second coupling shaft of described second coupling, the shaft axis of described first coupling shaft and the shaft axis of described fixing outer ring are parallel to each other, on the shaft axis of described second coupling shaft and described stator, the shaft axis in described axle portion is parallel to each other.
as a kind of concrete mode of execution, the number of described driving mechanism is equal with the number of described stator.
due to the utilization of technique scheme, the present invention compared with prior art has following advantages: a kind of air inlet prerotator of the present invention, wherein by being optimized its structure, improve the rigidity of stator, make it all can not deform when running into larger gas shock, this makes the aperture of stator upper blade more easily regulate and have higher degree of regulation, thus make the Flow-rate adjustment of prerotator more accurate, which ensure that the flow of stator upper blade under actual aperture and the conformity of design load, data accurately can be provided for control system, avoid energy loss during Flow-rate adjustment in prior art, the working efficiency being provided with the blower fan of this prerotator will significantly be improved.Like this, under same working efficiency, the axial dimension of complete machine can reduce the complete cost reducing unit significantly.
Accompanying drawing explanation
accompanying drawing 1 is the main TV structure schematic diagram of prerotator of the present invention;
accompanying drawing 2 is that cross-sectional schematic is looked on the right side of prerotator of the present invention;
accompanying drawing 3 is the left TV structure schematic diagram of prerotator of the present invention;
accompanying drawing 4 is the stereogram of prerotator of the present invention.
wherein, 1, fixing outer ring; 11, upper arc block; 12, arc lower block; 2, fixing inner ring; 3, connecting rod; 4, stator; 41, axle portion; 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 invention, technological scheme of the present invention is further elaborated.
see the air inlet prerotator shown in Fig. 1 ~ 4, this prerotator comprises fixing outer ring 1, fixing inner ring 2, and fixing outer ring 1 has the inner chamber of hollow shape and its two axial ends runs through mutually, and two axial end portion of fixing outer ring 1 are not as suction port and the air outlet of this prerotator.The two axial ends sealing of fixing inner ring 2 is arranged, fixing inner ring 2 is coaxially arranged in the inner chamber of fixing outer ring 1, fixing inner ring 2 is fixedly connected by many connecting rods 3 with fixing outer ring 1, and this multiple connecting rod 3 is distributed in the circumference of fixing outer ring 1, fixing inner ring 2 at intervals.
shown in Fig. 1 ~ 4, this prerotator also comprises multiple stator 4, the two ends of each stator 4 are arranged on fixing outer ring 1 and fixing inner ring 2 respectively rotationally, this multiple stator 4 along fixing outer ring 1, the circumference of fixing inner ring 2 distributes separately, fixing outer ring 1 and fixing inner ring 2 provide stator 4 to support simultaneously, make stator 4 have good rigidity.The outer circumferential of fixing outer ring 1 is also provided with turning collar 5 rotationally, and this turning collar 5 is provided with multiple driving mechanism 6 being respectively used to drive the rotation of above-mentioned multiple stator 4, 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 blade more easily regulates and has higher degree of regulation, this makes the Flow-rate adjustment of prerotator more accurate, blade its aperture when closed of stator 4 also can reach null value, which ensure that the flow of stator 4 upper blade under actual aperture and the conformity of design load, for control system provides data accurately, avoid energy loss during Flow-rate adjustment in prior art, the working efficiency being provided with the blower fan of this prerotator will significantly be improved.Like this, under same ability to work, the axial dimension of complete machine can reduce the complete cost reducing unit significantly.
shown in Figure 3, driving mechanism 6 and one_to_one corresponding consistent with the number of both stators 4.In the present embodiment, driving mechanism 6 comprises the first coupling shaft 61 rotating or be fixedly attached on turning collar 5, one end connects the first coupling 62 on the first coupling shaft 61 rotationally, stator 4 has the axle portion 41 for being rotatably connected on fixing outer ring 2, axle portion 41 is fixedly provided with the second coupling 64, this driving mechanism 6 also comprises the second coupling shaft 63 for connecting the first coupling 61 and the second coupling 64, the shaft axis of the first coupling shaft 61 and the shaft axis of fixing outer ring 1 are parallel to each other, on the shaft axis of the second coupling shaft 63 and stator 4, the shaft axis in axle portion 41 is parallel to each other, like this, when the power plant of outside drive turning collar 5 to rotate, first coupling shaft 61 drives the first coupling 62, and drive the second coupling 64 to rotate by the second coupling shaft 63, second coupling 64 makes the blade opening of stator 4 be adjusted with moving axis portion 41 rotates around himself shaft axis.
the position be mounted on blower fan due to prerotator often interferes with the installation shaft (not shown) on blower fan, thus usual by prerotator install on the mounting shaft, therefore, fixing inner ring 2 offers the through hole axially run through along it, this through hole should match with installation shaft, Sealing 7 is set between the outside perimembranous and the hole wall of through hole of installation shaft simultaneously, as shown in Figure 2, so just, the sealing at fixing inner ring 2 place can be ensured while ensureing prerotator normal mounting, avoid the return loss of air-flow.Here, fixing inner ring 2 is set to hollow cylindrical, fixing outer ring 1 is also set to hollow cylinder shape, fixing outer ring 1 is fixed by upper arc block 11 and arc lower block 12 and is spliced, similarly, fixing inner ring 2, Sealing 7 also can be set to two-part, are spliced and combined after first installing each parts again, install more convenient, and more convenient when the follow-up complete machine to band prerotator is debugged.
above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (4)
1. an air inlet prerotator, it is characterized in that: described prerotator comprises the fixing outer ring with hollow cavity, coaxially be arranged on the fixing inner ring in the inner chamber of described fixing outer ring, for connecting many connecting rods of described fixing inner ring and described fixing outer ring, the two axial ends of described fixing outer ring runs through mutually and the sealing of the two axial ends of described fixing inner ring is arranged, described prerotator also comprises multiple stator, the two ends of each described stator are arranged on described fixing outer ring respectively rotationally, on described fixing inner ring, multiple described stator is along described fixing outer ring, the circumference of described fixing inner ring distributes separately, the outside of described fixing outer ring is also arranged with turning collar rotationally, turning collar is also provided with multiple driving mechanism being respectively used to drive described multiple stator rotation, described fixing outer ring is hollow cylinder shape, described fixing outer ring is by upper arc block, these two arc blocks of arc lower block circumferentially fix and are spliced, described driving mechanism comprises the first coupling shaft be connected on described turning collar, one end is connected to the first coupling on described first coupling shaft rotationally, described stator has the axle portion for being rotatably connected on described fixing outer ring, described axle portion is fixedly provided with the second coupling, described driving mechanism also comprises for connecting described first coupling, second coupling shaft of described second coupling, the shaft axis of described first coupling shaft and the shaft axis of described fixing outer ring are parallel to each other, on the shaft axis of described second coupling shaft and described stator, the shaft axis in described axle portion is parallel to each other.
2. a kind of air inlet prerotator according to claim 1, is characterized in that: described fixing inner ring offering the through hole for matching with installation shaft axially run through along it, being also provided with Sealing between the outside perimembranous of described installation shaft and described through hole.
3. a kind of air inlet prerotator according to claim 1, is characterized in that: multiple described connecting rod is distributed in the circumference of described fixing outer ring, described fixing inner ring at intervals.
4. a kind of air inlet prerotator according to claim 1, is characterized in that: the number of described driving mechanism is equal 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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| Publication Number | Publication Date |
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| CN103423198A CN103423198A (en) | 2013-12-04 |
| CN103423198B true CN103423198B (en) | 2016-03-02 |
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Citations (5)
| 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***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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9200640B2 (en) * | 2009-11-03 | 2015-12-01 | Ingersoll-Rand Company | Inlet guide vane for a compressor |
-
2013
- 2013-08-05 CN CN201310336002.3A patent/CN103423198B/en active Active
Patent Citations (5)
| 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***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 |
| 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 |
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| CN103423198A (en) | 2013-12-04 |
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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. |