CN105298868A - Double-end suspended centrifuge and two-stage inlet structure thereof - Google Patents
Double-end suspended centrifuge and two-stage inlet structure thereof Download PDFInfo
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- CN105298868A CN105298868A CN201510874682.3A CN201510874682A CN105298868A CN 105298868 A CN105298868 A CN 105298868A CN 201510874682 A CN201510874682 A CN 201510874682A CN 105298868 A CN105298868 A CN 105298868A
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- inlet structure
- diversion component
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- stage impeller
- secondary inlet
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Abstract
The invention discloses a double-end suspended centrifuge and a two-stage inlet structure thereof. The two-stage inlet structure comprises a two-stage impeller and a two-stage leading-in pipe section arranged along the direction vertical to the axis of the two-stage impeller. The two-stage inlet structure is characterized in that a two-stage inlet aligning to the air inlet side of the two-stage impeller is formed in the side wall of the two-stage leading-in pipe section, and the end part of the two-stage leading-in pipe section is of a closed structure; the two-stage inlet structure also comprises a flow guide part which is arranged in the two-stage leading-in pipe section and is arranged corresponding to the two-stage inlet, and the flow guide part is inclined towards the direction far away from the two-stage impeller along the airflow direction of the two-stage leading-in pipe section; and the flow guide part comprises a plurality of flow guide plates for leading out an airflow along the axial direction of the two-stage impeller, and the plurality of flow guide plates are arranged along the extension direction of the flow guide part. By using the two-stage inlet structure disclosed by the invention, energy loss caused by the direction conversion of the airflow at the two-stage inlet structure from the radial direction (vertical to the axial direction the two-stage impeller) of the two-stage impeller to the radial direction II of the two-stage impeller is effectively avoided, and the airflow disorder degree is reduced.
Description
Technical field
The present invention relates to compression device technical field, particularly a kind of double end suspended centrifuge and secondary inlet structure thereof.
Background technique
Double end suspended centrifuge comprises one stage impeller, sencond stage impeller and the pneumatic convey that exported by one stage impeller to the conveyance conduit of sencond stage impeller.At present, conveyance conduit comprises the one-level connected successively derives pipeline section, intermediate connection tube section, secondary importing pipeline section and level guiding pipeline section.One-level derives pipeline section and secondary and imports pipeline section and arrange along the radial direction of one stage impeller and sencond stage impeller, and intermediate connection tube section and level guiding pipeline section are along the axis setting of one stage impeller and sencond stage impeller.Therefore, being changed to of air flow direction: radial-axially-radial-axially, that is, need to flow to through three times to change, the energy loss of air-flow is comparatively large, and adjacent two pipeline sections are that right angle connects, and air-flow is easily disorderly.
Therefore, how to avoid energy loss, reducing the degree of air turbulence, is the art personnel problem demanding prompt solutions.
Summary of the invention
In view of this, the invention provides a kind of secondary inlet structure, to avoid energy loss, reduce the degree of air turbulence.The invention also discloses a kind of double end suspended centrifuge.
For achieving the above object, the invention provides following technological scheme:
As can be seen from above-mentioned technological scheme, secondary inlet structure provided by the invention, comprise sencond stage impeller and import pipeline section along the secondary perpendicular to the axis arranged of described sencond stage impeller, the sidewall of described secondary importing pipeline section has the secondary inlet alignd with the inlet side of described sencond stage impeller, and the end that described secondary imports pipeline section is enclosed construction;
Also comprise and being arranged in described secondary importing pipeline section and the diversion component that arrange corresponding to described secondary inlet, the airflow direction that described diversion component imports pipeline section along described secondary tilts to the direction away from described sencond stage impeller;
Described diversion component comprises multiple guide plate for being derived along the axis of described sencond stage impeller by air-flow, and multiple described guide plate arranges along the bearing of trend of described diversion component.
Preferably, in above-mentioned secondary inlet structure, the airflow direction that the gap of adjacent two described guide plates imports pipeline section along described secondary increases.
Preferably, in above-mentioned secondary inlet structure, the twice of the gap c between two adjacent described guide plates that the gap c ' between two bottom described diversion component adjacent described guide plates is described diversion component top.
Preferably, in above-mentioned secondary inlet structure, the gap of adjacent two described guide plates is identical.
Preferably, in above-mentioned secondary inlet structure, described guide plate has arcuate segment; Described arcuate segment is bent upwards away from the side of described sencond stage impeller.
Preferably, in above-mentioned secondary inlet structure, described guide plate also has the horizontal segment be connected near the side of described sencond stage impeller with described arcuate segment.
Preferably, in above-mentioned secondary inlet structure, diversion component angle a equals guide plate angle d;
Described diversion component angle a is the angle that described diversion component and described secondary import pipeline section;
The angle of described guide plate angle d to be described arcuate segment away from the tangent line of the side of described horizontal segment and described secondary import pipeline section.
Preferably, in above-mentioned secondary inlet structure, the span of described diversion component angle a is 45 ° ± 5 °.
Preferably, in above-mentioned secondary inlet structure, described diversion component also comprises the flase floor of guide plate described in fixed support, it has the grille strip that multiple bearing of trend along described diversion component is arranged.
Preferably, in above-mentioned secondary inlet structure, the airflow direction that the gap of adjacent two described grille strips imports pipeline section along described secondary increases.
Preferably, in above-mentioned secondary inlet structure, the twice of gap, the top b that gap, the bottom b ' of adjacent two described grille strips is adjacent two described grille strips.
Preferably, in above-mentioned secondary inlet structure, described grille strip tilts along the center of described diversion component to both sides.
Present invention also offers a kind of double end suspended centrifuge, it is characterized in that, the secondary inlet structure of described double end suspended centrifuge is the secondary inlet structure as described in above-mentioned any one.
Secondary inlet structure provided by the invention, the pneumatic convey of pressing impeller to discharge one-level imports pipeline section to secondary, and the sidewall due to secondary importing pipeline section has secondary inlet, and the end that secondary imports pipeline section is enclosed construction, therefore, air-flow flows into sencond stage impeller by secondary inlet.Diversion component is arranged at secondary and imports in pipeline section and correspondingly with secondary inlet to arrange, time near airflow path secondary inlet, and diversed parts water conservancy diversion.Because diversion component comprises multiple guide plate for being derived along the axis of sencond stage impeller by air-flow, multiple guide plate arranges along the bearing of trend of diversion component, make air-flow successively through multiple guide plates from top to bottom, air-flow all can be distributed sub-fraction air-flow by this guide plate after each guide plate, this sub-fraction air-flow is derived along the axis of sencond stage impeller, and flows to sencond stage impeller.It can thus be appreciated that, by the multiple guide plates on diversion component, the airflow diversion of the axial flow being vertically to sencond stage impeller is guided into the air-flow of the axial flow along sencond stage impeller, effectively prevent the energy loss that radial direction two that air-flow transfers sencond stage impeller at secondary inlet structure place to by the radial direction (axis perpendicular to sencond stage impeller) of sencond stage impeller causes, further, the degree of air turbulence is reduced.
Present invention also offers a kind of double end suspended centrifuge with above-mentioned secondary inlet structure.Because above-mentioned secondary inlet structure has above-mentioned technique effect, the double end suspended centrifuge with above-mentioned secondary inlet structure also should have same technique effect, introduces no longer in detail at this.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the double end suspended centrifuge that Fig. 1 provides for the embodiment of the present invention;
The first schematic front view of the diversion component that Fig. 2 provides for the embodiment of the present invention;
The second schematic front view of the diversion component that Fig. 3 provides for the embodiment of the present invention;
The schematic side view of the diversion component that Fig. 4 provides for the embodiment of the present invention.
Embodiment
The invention discloses a kind of secondary inlet structure, to avoid energy loss, reduce the degree of air turbulence.The invention also discloses a kind of double end suspended centrifuge.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1-Fig. 3, the structural representation of the double end suspended centrifuge that Fig. 1 provides for the embodiment of the present invention; The first schematic front view of the diversion component that Fig. 2 provides for the embodiment of the present invention; The second schematic front view of the diversion component that Fig. 3 provides for the embodiment of the present invention.
The secondary inlet structure that the embodiment of the present invention provides, comprises sencond stage impeller 3, secondary imports pipeline section 23 and diversion component 4.Secondary imports pipeline section 23 along the axis arranged perpendicular to sencond stage impeller 3, and the sidewall of secondary importing pipeline section 23 has the secondary inlet alignd with the inlet side of sencond stage impeller 3, and the end that secondary imports pipeline section 23 is enclosed construction.Diversion component 4 is arranged at secondary and imports in pipeline section 23, and diversion component 4 is corresponding with secondary inlet to be arranged, and the airflow direction that diversion component 4 imports pipeline section 23 along secondary tilts to the direction away from sencond stage impeller 3; Diversion component 4 comprises multiple guide plate 41 for being derived along the axis of sencond stage impeller 3 by air-flow, and multiple guide plate 41 arranges along the bearing of trend of diversion component 4.
The secondary inlet structure that the embodiment of the present invention provides, the pneumatic convey of one-level being pressed impeller 1 to discharge imports pipeline section 23 to secondary, and the sidewall due to secondary importing pipeline section 23 has secondary inlet, and the end that secondary imports pipeline section 23 is enclosed construction, therefore, air-flow flows into sencond stage impeller 3 by secondary inlet.Diversion component 4 is arranged at secondary and imports in pipeline section 23 and correspondingly with secondary inlet to arrange, time near airflow path secondary inlet, and diversed parts 4 water conservancy diversion.Because diversion component 4 comprises multiple guide plate 41 for being derived along the axis of sencond stage impeller 3 by air-flow, multiple guide plate 41 arranges along the bearing of trend of diversion component 4, make air-flow successively through multiple guide plates 41 from top to bottom, air-flow all can be distributed sub-fraction air-flow by this guide plate 41 after each guide plate 41, this sub-fraction air-flow is derived along the axis of sencond stage impeller 3, and flows to sencond stage impeller 3.It can thus be appreciated that, by the multiple guide plates 41 on diversion component 4, the airflow diversion of the axial flow being vertically to sencond stage impeller 3 is guided into the air-flow of the axial flow along sencond stage impeller 3, effectively prevent the energy loss that radial direction two that air-flow transfers sencond stage impeller 3 at secondary inlet structure place to by the radial direction (axis perpendicular to sencond stage impeller 3) of sencond stage impeller 3 causes, further, the degree of air turbulence is reduced.
Wherein, the bearing of trend of diversion component 4 is the direction of top to the bottom of diversion component 4 of diversion component 4.
As shown in Figure 2, in the first embodiment, in order to improve the gas uniform degree flowing to sencond stage impeller 3, the airflow direction that the gap of adjacent two guide plates 41 imports pipeline section 23 along secondary increases.That is, to import the air-flow of pipeline section 23 more in the throughput through diversion component 4 top for secondary, and along with air-flow is shunted along diversion component 4 by the guide plate 41 on it, throughput reduces.Therefore, when throughput is more, the gap of adjacent two guide plates 41 is less, and namely guide plate 41 arranging density at this place is higher; And when throughput is less, the gap of adjacent two guide plates 41 is comparatively large, namely guide plate 41 arranging density at this place is lower.
Preferably, the twice of the gap c between two adjacent baffles 41 that the gap c ' between two adjacent baffles 41 bottom diversion component 4 is diversion component 4 top.By above-mentioned setting, the difference gap that effectively prevent adjacent two guide plates 41 is excessive, ensure that air flow guiding effect.
As shown in Figure 3, in the second embodiment, the gap of adjacent two guide plates 41 is identical.By above-mentioned setting, facilitate the layout of guide plate 41.
In the present embodiment, guide plate 41 has arcuate segment 411; Arcuate segment 411 is bent upwards away from the side of sencond stage impeller 3.By arranging arcuate segment 411, the flowing that the cambered surface of the side that the air-flow on guide plate 41 is bent upwards by arcuate segment 411 arcuately section 411 is smooth, effectively prevent the obstruction to air-flow in guide plate 41 water conservancy diversion process, reduce further energy loss.Also can be set to tilted plate section or arcuate segment 411 be bent downwardly away from the side of sencond stage impeller 3, introduce in detail and all within protection domain at this.
Preferably, guide plate 41 also has the horizontal segment 412 be connected near the side of sencond stage impeller 3 with arcuate segment 411.By arranging horizontal segment 412, further ensure that by (axis of the sencond stage impeller 3) flowing in the horizontal direction of the gas of guide plate 41 water conservancy diversion.Certainly, also guide plate 41 can not be set.
Diversion component angle a equals guide plate angle d; Diversion component angle a is that diversion component 4 imports the angle of pipeline section 23 with secondary; The angle of guide plate angle d to be arcuate segment 411 away from the tangent line of the side of horizontal segment 412 and secondary import pipeline section 23.By above-mentioned setting, make arcuate segment 411 parallel with the airflow direction that secondary imports pipeline section 23 away from the side of horizontal segment 412, and the diversed plate 41 being imported the airflow smooth that pipeline section 23 is carried by secondary is guided.Also diversion component angle a and guide plate angle d can be made to have certain difference.
Preferably, the span of diversion component angle a is 45 ° ± 5 °.By above-mentioned setting, namely ensure that the water conservancy diversion effect of diversion component 4, facilitate again the layout of diversion component 4.
Diversion component 4 also comprises the flase floor of fixed support guide plate 41, it has the grille strip 42 that multiple bearing of trend along diversion component 4 is arranged.By arranging flase floor, guide plate 41 and grille strip 42 being interfixed, facilitates the layout of guide plate 41.Also can framework be set, guide plate 41 is arranged in framework, directly guide plate 41 can also be fixed on secondary and import in pipeline section 23.
As shown in Figure 4, the airflow direction that the gap of adjacent two grille strips 42 imports pipeline section 23 along secondary increases.Due to secondary, to import the air-flow of pipeline section 23 more in the throughput through diversion component 4 top, and along with air-flow is shunted along diversion component 4 by the guide plate 41 on it, throughput reduces.Therefore, when throughput is more, the gap of adjacent two grille strips 42 is less, and namely grille strip 42 arranging density at this place is higher, larger to the resistance of the air-flow by this place; And when throughput is less, the gap of adjacent two grille strips 42 is comparatively large, namely grille strip 42 arranging density at this place is lower, larger to the resistance of the air-flow by this place.Arrange thus, the sencond stage impeller 3 throughput uniformity in vertical direction can be made to improve.
The twice of gap, the top b that gap, the bottom b ' of adjacent two grille strips 42 is adjacent two grille strips 42.By above-mentioned setting, the difference gap that effectively prevent adjacent two grille strips 42 is excessive, ensure that air flow guiding effect.
Grille strip 42 tilts along the center of diversion component 4 to both sides.That is, multiple grille strip 42 is arranged radially by the top center of diversion component 4, overall flase floor is symmetrical arranged, carries with being convenient to uniform stream further to sencond stage impeller 3.
The embodiment of the present invention additionally provides a kind of double end suspended centrifuge, and the secondary inlet structure of double end suspended centrifuge is as any one secondary inlet structure above-mentioned.In the present embodiment, double end suspended centrifuge comprises one stage impeller 1, conveyance conduit 2, sencond stage impeller 3 and diversion component 4, the one-level that comprises conveyance conduit 2 derives pipeline section 21, intermediate connection tube section 22 and secondary and imports pipeline section 23, one-level derives pipeline section 21 and secondary and imports pipeline section 23 and arrange along the radial direction of sencond stage impeller 3 (one stage impeller 1), and intermediate connection tube section 22 is arranged along the axis of sencond stage impeller 3 (one stage impeller 1).Because above-mentioned secondary inlet structure has above-mentioned technique effect, the double end suspended centrifuge with above-mentioned secondary inlet structure also should have same technique effect, tires out no longer one by one state at this.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (13)
1. a secondary inlet structure, comprise sencond stage impeller (3) and import pipeline section (23) along the secondary perpendicular to the axis arranged of described sencond stage impeller (3), it is characterized in that, the sidewall of described secondary importing pipeline section (23) has the secondary inlet alignd with the inlet side of described sencond stage impeller (3), and the end that described secondary imports pipeline section (23) is enclosed construction;
Also comprise and being arranged in described secondary importing pipeline section (23) and the diversion component (4) that arrange corresponding to described secondary inlet, the airflow direction that described diversion component (4) imports pipeline section (23) along described secondary tilts to the direction away from described sencond stage impeller (3);
Described diversion component (4) comprises multiple guide plate (41) for being derived along the axis of described sencond stage impeller (3) by air-flow, and multiple described guide plate (41) arranges along the bearing of trend of described diversion component (4).
2. secondary inlet structure as claimed in claim 1, is characterized in that, the airflow direction that the gap of adjacent two described guide plates (41) imports pipeline section (23) along described secondary increases.
3. secondary inlet structure as claimed in claim 2, it is characterized in that, the twice of the gap c between two adjacent described guide plates (41) that the gap c ' between two adjacent described guide plates (41) of described diversion component (4) bottom is described diversion component (4) top.
4. secondary inlet structure as claimed in claim 1, it is characterized in that, the gap of adjacent two described guide plates (41) is identical.
5. secondary inlet structure as claimed in claim 1, it is characterized in that, described guide plate (41) has arcuate segment (411); Described arcuate segment (411) is bent upwards away from the side of described sencond stage impeller (3).
6. secondary inlet structure as claimed in claim 5, it is characterized in that, described guide plate (41) also has the horizontal segment (412) be connected near the side of described sencond stage impeller (3) with described arcuate segment (411).
7. the secondary inlet structure as described in claim 5 or 6, is characterized in that, diversion component angle a equals guide plate angle d;
Described diversion component angle a is the angle that described diversion component (4) and described secondary import pipeline section (23);
The angle of described guide plate angle d to be described arcuate segment (411) away from the tangent line of the side of described horizontal segment (412) and described secondary import pipeline section (23).
8. secondary inlet structure as claimed in claim 7, it is characterized in that, the span of described diversion component angle a is 45 ° ± 5 °.
9. secondary inlet structure as claimed in claim 1, it is characterized in that, described diversion component (4) also comprises the flase floor of guide plate described in fixed support (41), it has the grille strip (42) that multiple bearing of trend along described diversion component (4) is arranged.
10. secondary inlet structure as claimed in claim 9, is characterized in that, the airflow direction that the gap of adjacent two described grille strips (42) imports pipeline section (23) along described secondary increases.
11. secondary inlet structures as claimed in claim 10, is characterized in that, the twice that gap, the bottom b ' of adjacent two described grille strips (42) is gap, the top b of adjacent two described grille strips (42).
12. secondary inlet structures as described in claim 10 or 11, it is characterized in that, described grille strip (42) tilts along the center of described diversion component (4) to both sides.
13. 1 kinds of double end suspended centrifuges, is characterized in that, the secondary inlet structure of described double end suspended centrifuge is the secondary inlet structure as described in any one of claim 1-12.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510874682.3A CN105298868B (en) | 2015-12-01 | 2015-12-01 | Double end suspended centrifuge and its secondary inlet structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510874682.3A CN105298868B (en) | 2015-12-01 | 2015-12-01 | Double end suspended centrifuge and its secondary inlet structure |
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| Publication Number | Publication Date |
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| CN105298868A true CN105298868A (en) | 2016-02-03 |
| CN105298868B CN105298868B (en) | 2019-04-26 |
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| CN201510874682.3A Active CN105298868B (en) | 2015-12-01 | 2015-12-01 | Double end suspended centrifuge and its secondary inlet structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857043A (en) * | 2022-04-21 | 2022-08-05 | 珠海格力电器股份有限公司 | Air compressor, fuel cell and new energy vehicle |
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| US20070036662A1 (en) * | 2005-08-05 | 2007-02-15 | C.R.F Societa Consortilla Per Azioni | Multistage motor-compressor for the compression of a fluid |
| CN103629161A (en) * | 2013-12-17 | 2014-03-12 | 辽宁长志泵业有限公司 | Second-level cantilever type small flow centrifugal pump |
| CN205423205U (en) * | 2015-12-01 | 2016-08-03 | 珠海格力电器股份有限公司 | Double -end suspension type centrifuge and second grade entry structure thereof |
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2015
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB727297A (en) * | 1952-06-30 | 1955-03-30 | Garrett Corp | Multistage compressor |
| US3861826A (en) * | 1972-08-14 | 1975-01-21 | Caterpillar Tractor Co | Cascade diffuser having thin, straight vanes |
| JPH10331792A (en) * | 1997-06-03 | 1998-12-15 | Ishikawajima Harima Heavy Ind Co Ltd | Structure of intake part of centrifugal compressor |
| US20070036662A1 (en) * | 2005-08-05 | 2007-02-15 | C.R.F Societa Consortilla Per Azioni | Multistage motor-compressor for the compression of a fluid |
| CN103629161A (en) * | 2013-12-17 | 2014-03-12 | 辽宁长志泵业有限公司 | Second-level cantilever type small flow centrifugal pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857043A (en) * | 2022-04-21 | 2022-08-05 | 珠海格力电器股份有限公司 | Air compressor, fuel cell and new energy vehicle |
| CN114857043B (en) * | 2022-04-21 | 2023-10-24 | 珠海格力电器股份有限公司 | Air compressor, fuel cell and new energy vehicle |
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| CN105298868B (en) | 2019-04-26 |
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