CN105298868B - Double end suspended centrifuge and its secondary inlet structure - Google Patents
Double end suspended centrifuge and its secondary inlet structure Download PDFInfo
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- CN105298868B CN105298868B CN201510874682.3A CN201510874682A CN105298868B CN 105298868 B CN105298868 B CN 105298868B CN 201510874682 A CN201510874682 A CN 201510874682A CN 105298868 B CN105298868 B CN 105298868B
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- secondary inlet
- stage impeller
- diversion component
- pipeline section
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Abstract
The invention discloses a kind of double end suspended centrifuge and its secondary inlet structures, secondary inlet structure includes sencond stage impeller and imports pipeline section along the second level of the axis arrangement perpendicular to sencond stage impeller, it is characterized in that, second level, which imports, has the secondary inlet being aligned with the inlet side of sencond stage impeller on the side wall of pipeline section, the end that second level imports pipeline section is enclosed construction；It further include being set to second level to import the diversion component being correspondingly arranged in pipeline section and with secondary inlet, diversion component is tilted along the airflow direction that second level imports pipeline section to the direction far from sencond stage impeller；Diversion component includes deflector derived from multiple axial directions being used for by air-flow along sencond stage impeller, and multiple deflectors are arranged along the extending direction of diversion component.Secondary inlet structure provided by the invention, it effectively prevents air-flow and switchs to energy loss caused by radial the two of sencond stage impeller as the radial direction (perpendicular to the axial direction of sencond stage impeller) of sencond stage impeller at secondary inlet structure, also, reduce the degree of air turbulence.
Description
Technical field
The present invention relates to compression device technical field, in particular to a kind of double end suspended centrifuge and its secondary inlet knot
Structure.
Background technique
Double end suspended centrifuge includes one stage impeller, sencond stage impeller and the air-flow that one stage impeller exports is delivered to second level
The conveyance conduit of impeller.Currently, conveyance conduit includes sequentially connected level-one export pipeline section, intermediate connection tube section, second level importing
Pipeline section and horizontal guidance pipeline section.Level-one export pipeline section and second level importing pipeline section being arranged radially along one stage impeller and sencond stage impeller,
Intermediate connection tube section and horizontal guidance pipeline section are arranged along one stage impeller and the axial of sencond stage impeller.Therefore, the variation of air flow direction
Are as follows: it is radial-axial-radial-axial, that is, to need by flow direction transformation three times, the energy loss of air-flow is larger, also, phase
Adjacent two pipeline sections are right angle connection, and air-flow is easy disorder.
Therefore, how energy loss is avoided, reduces the degree of air turbulence, being that those skilled in the art is urgently to be resolved asks
Topic.
Summary of the invention
In view of this, to avoid energy loss, reducing the journey of air turbulence the present invention provides a kind of secondary inlet structure
Degree.The invention also discloses a kind of double end suspended centrifuges.
To achieve the above object, the invention provides the following technical scheme:
It can be seen from the above technical scheme that secondary inlet structure provided by the invention, including sencond stage impeller and along hanging down
Pipeline section directly is imported in the second level that the axis of the sencond stage impeller is arranged, the second level, which imports on the side wall of pipeline section, to be had and described two
The secondary inlet of the inlet side alignment of grade impeller, the end that the second level imports pipeline section is enclosed construction；
It further include being set to the second level to import the diversion component being correspondingly arranged in pipeline section and with the secondary inlet, it is described
Diversion component is tilted along the airflow direction that the second level imports pipeline section to the direction far from the sencond stage impeller；
The diversion component includes deflector derived from multiple axial directions being used for by air-flow along the sencond stage impeller, Duo Gesuo
The extending direction that deflector is stated along the diversion component arranges.
Preferably, in above-mentioned secondary inlet structure, the gap of the two neighboring deflector imports pipeline section along the second level
Airflow direction increase.
Preferably, in above-mentioned secondary inlet structure, between the adjacent deflector of two of the diversion component bottom
Gap c ' is twice of the gap c between two adjacent deflectors at the top of the diversion component.
Preferably, in above-mentioned secondary inlet structure, the gap of the two neighboring deflector is identical.
Preferably, in above-mentioned secondary inlet structure, the deflector has segmental arc；The segmental arc is far from the second level
The side of impeller is bent upwards.
Preferably, in above-mentioned secondary inlet structure, the deflector also has with the segmental arc close to the second level leaf
The horizontal segment of the side connection of wheel.
Preferably, in above-mentioned secondary inlet structure, diversion component angle a is equal to deflector angle d；
The diversion component angle a is the angle that the diversion component and the second level import pipeline section；
The deflector angle d is the tangent line and the second level ingress pipe of side of the segmental arc far from the horizontal segment
The angle of section.
Preferably, in above-mentioned secondary inlet structure, the value range of the diversion component angle a is 45 ° ± 5 °.
Preferably, in above-mentioned secondary inlet structure, the diversion component further includes the fixed grid for supporting the deflector
Plate, the grille strip being arranged thereon with multiple extending directions along the diversion component.
Preferably, in above-mentioned secondary inlet structure, the gap of the two neighboring grille strip imports pipeline section along the second level
Airflow direction increase.
Preferably, in above-mentioned secondary inlet structure, the bottom end gap b ' of the two neighboring grille strip is two neighboring institute
Twice for stating the tip clearance b of grille strip.
Preferably, in above-mentioned secondary inlet structure, the grille strip is tilted along the center of the diversion component to both sides.
The present invention also provides a kind of double end suspended centrifuges, which is characterized in that the double end suspended centrifuge
Secondary inlet structure is secondary inlet structure as described in any one of the above embodiments.
The air-flow of level-one pressure impeller discharge is delivered to second level and imports pipeline section by secondary inlet structure provided by the invention, by
In having secondary inlet on the side wall that second level imports pipeline section, the end that second level imports pipeline section is enclosed construction, and therefore, air-flow is by two
Grade entrance flows into sencond stage impeller.Diversion component is set to second level and imports in pipeline section and be correspondingly arranged with secondary inlet, in air-flow stream
When near road secondary inlet, by diversion component water conservancy diversion.Since diversion component includes multiple axis for by air-flow along sencond stage impeller
To derived deflector, multiple deflectors are arranged along the extending direction of diversion component, so that air-flow successively passes through from top to bottom
Multiple deflectors, air-flow can be distributed sub-fraction air-flow after each deflector by the deflector, this sub-fraction gas
The axial direction flowed along sencond stage impeller exports, and flows to sencond stage impeller.It follows that will be erected by multiple deflectors on diversion component
It directly guides in the airflow diversion of sencond stage impeller axially flowed into the air-flow axially flowed along sencond stage impeller, effectively prevents gas
Stream switchs to radial the two of sencond stage impeller by the radial direction of sencond stage impeller (perpendicular to the axial direction of sencond stage impeller) at secondary inlet structure
Caused by energy loss, also, reduce the degree of air turbulence.
The present invention also provides a kind of double end suspended centrifuges with above-mentioned secondary inlet structure.Due to above-mentioned second level
Entrance structure has above-mentioned technique effect, and the double end suspended centrifuge with above-mentioned secondary inlet structure should also have similarly
Technical effect is no longer discussed in detail herein.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of double end suspended centrifuge provided in an embodiment of the present invention；
Fig. 2 is the first schematic front view of diversion component provided in an embodiment of the present invention；
Fig. 3 is second of schematic front view of diversion component provided in an embodiment of the present invention；
Fig. 4 is the schematic side view of diversion component provided in an embodiment of the present invention.
Specific embodiment
The invention discloses a kind of secondary inlet structures to reduce the degree of air turbulence to avoid energy loss.The present invention
Also disclose a kind of double end suspended centrifuge.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-Fig. 3 is please referred to, Fig. 1 is the structural schematic diagram of double end suspended centrifuge provided in an embodiment of the present invention；Fig. 2
For the first schematic front view of diversion component provided in an embodiment of the present invention；Fig. 3 is diversion division provided in an embodiment of the present invention
Second of schematic front view of part.
Secondary inlet structure provided in an embodiment of the present invention, including sencond stage impeller 3, second level import pipeline section 23 and diversion component
4.Second level importing pipeline section 23 has in the axis arrangement perpendicular to sencond stage impeller 3, the side wall of second level importing pipeline section 23 and second level
The secondary inlet of the inlet side alignment of impeller 3, the end that second level imports pipeline section 23 is enclosed construction.Diversion component 4 is set to two
Grade imports in pipeline section 23, also, diversion component 4 is correspondingly arranged with secondary inlet, and diversion component 4 imports the gas of pipeline section 23 along second level
Direction is flowed to tilt to the direction far from sencond stage impeller 3；Diversion component 4 includes multiple is used for air-flow along the axial direction of sencond stage impeller 3
Derived deflector 41, multiple deflectors 41 are arranged along the extending direction of diversion component 4.
The air-flow that level-one pressure impeller 1 is discharged is delivered to second level and imported by secondary inlet structure provided in an embodiment of the present invention
Pipeline section 23 has secondary inlet since second level imports on the side wall of pipeline section 23, the end that second level imports pipeline section 23 is enclosed construction,
Therefore, air-flow flows into sencond stage impeller 3 by secondary inlet.Diversion component 4 is set in second level importing pipeline section 23 and and secondary inlet
It is correspondingly arranged, when near airflow path secondary inlet, by 4 water conservancy diversion of diversion component.Since diversion component 4 includes multiple for inciting somebody to action
Deflector 41 derived from axial direction of the air-flow along sencond stage impeller 3, multiple deflectors 41 arrange along the extending direction of diversion component 4, make
It obtains air-flow and successively passes through multiple deflectors 41 from top to bottom, air-flow can be divided after each deflector 41 by the deflector 41
Sub-fraction air-flow is flowed out, this sub-fraction air-flow is exported along the axial direction of sencond stage impeller 3, and flows to sencond stage impeller 3.Thus may be used
Know, is guided the airflow diversion axially flowed for being vertically to sencond stage impeller 3 at edge by multiple deflectors 41 on diversion component 4
The air-flow of sencond stage impeller 3 axially flowed effectively prevents air-flow and (is hung down at secondary inlet structure by the radial direction of sencond stage impeller 3
Directly in the axial direction of sencond stage impeller 3) switch to energy loss caused by radial the two of sencond stage impeller 3, also, reduce air turbulence
Degree.
Wherein, the extending direction of diversion component 4 is the top of diversion component 4 to the direction of the bottom end of diversion component 4.
As shown in Fig. 2, in the first embodiment, it is two neighboring in order to improve the gas uniformity for flowing to sencond stage impeller 3
The gap of deflector 41 increases along the airflow direction that second level imports pipeline section 23.That is, second level imports the air-flow of pipeline section 23 by leading
The throughput at 4 top of stream unit is more, is shunted with air-flow along diversion component 4 and by deflector 41 thereon, throughput
It reduces.Therefore, when throughput is more, the gap of two neighboring deflector 41 is smaller, i.e., 41 arranging density of deflector at this
It is higher；And when throughput is less, the gap of two neighboring deflector 41 is larger, i.e., 41 arranging density of deflector at this compared with
It is low.
Preferably, the gap c ' between two adjacent baffles 41 of 4 bottom of diversion component is the two of 4 top of diversion component
Twice of gap c between a adjacent baffle 41.By above-mentioned setting, the gap of two neighboring deflector 41 is effectively prevented
Difference is excessive, it is ensured that air flow guiding effect.
As shown in figure 3, the gap of two neighboring deflector 41 is identical in second of embodiment.Pass through above-mentioned setting, side
Deflector 41 arrangement.
In the present embodiment, deflector 41 has segmental arc 411；Segmental arc 411 is bent up far from the side of sencond stage impeller 3
It is bent.By the way that segmental arc 411 is arranged, the side for being bent upwards air-flow on deflector 41 by segmental arc 411 arcuately section 411
The smooth flowing of cambered surface, effectively prevent the obstruction during 41 water conservancy diversion of deflector to air-flow, further reduced energy damage
It loses.It may be set to be tilted plate section or segmental arc 411 be bent downwardly far from the side of sencond stage impeller 3, it is described herein in detail and equal
Within protection scope.
Preferably, deflector 41 also has the horizontal segment 412 connecting with segmental arc 411 close to the side of sencond stage impeller 3.It is logical
Setting horizontal segment 412 is crossed, further ensures and is flowed in the horizontal direction (axial direction of sencond stage impeller 3) by the gas of 41 water conservancy diversion of deflector
It is dynamic.It is of course also possible to be not provided with deflector 41.
Diversion component angle a is equal to deflector angle d；Diversion component angle a is that diversion component 4 and second level import pipeline section 23
Angle；Deflector angle d is the tangent line of side of the segmental arc 411 far from horizontal segment 412 and the angle of second level importing pipeline section 23.
By above-mentioned setting, so that side of the segmental arc 411 far from horizontal segment 412 is parallel with the second level importing airflow direction of pipeline section 23,
And make being guided by deflector 41 for the airflow smooth conveyed by second level importing pipeline section 23.Can also make diversion component angle a with
Deflector angle d has certain difference.
Preferably, the value range of diversion component angle a is 45 ° ± 5 °.By above-mentioned setting, that is, ensure diversion component
4 diversion effect, and facilitate the arrangement of diversion component 4.
Diversion component 4 further includes the flase floor of fixed supporting guide plate 41, has multiple extensions along diversion component 4 thereon
The grille strip 42 of direction setting.Deflector is facilitated so that deflector 41 is fixed to each other with grille strip 42 by setting flase floor
41 arrangement.Also frame can be set, deflector 41 is set in frame, deflector 41 directly can also be fixed on second level
It imports in pipeline section 23.
As shown in figure 4, the gap of two neighboring grille strip 42 increases along the airflow direction that second level imports pipeline section 23.Due to two
The air-flow that grade imports pipeline section 23 is more in the throughput by 4 top of diversion component, as air-flow is along diversion component 4 and by thereon
Deflector 41 shunted, throughput reduce.Therefore, when throughput is more, the gap of two neighboring grille strip 42 is smaller,
42 arranging density of grille strip i.e. at this is higher, larger to the resistance by the air-flow at this；And when throughput is less, it is adjacent
The gap of two grille strips 42 is larger, i.e., 42 arranging density of grille strip at this is lower, to the resistance by the air-flow at this compared with
Greatly.Thus it is arranged, the throughput uniformity of sencond stage impeller 3 in vertical direction can be made to improve.
The bottom end gap b ' of two neighboring grille strip 42 is twice of the tip clearance b of two neighboring grille strip 42.Pass through
Above-mentioned setting, the difference gap for effectively preventing two neighboring grille strip 42 are excessive, it is ensured that air flow guiding effect.
Grille strip 42 is tilted along the center of diversion component 4 to both sides.That is, top of multiple grille strips 42 by diversion component 4
It is radially arranged at center, so that whole flase floor is symmetrical arranged, it is further equably defeated to sencond stage impeller 3 convenient for air-flow
It send.
The embodiment of the invention also provides a kind of double end suspended centrifuge, the secondary inlet knots of double end suspended centrifuge
Structure is such as above-mentioned any secondary inlet structure.In the present embodiment, double end suspended centrifuge includes one stage impeller 1, delivery pipe
Road 2, sencond stage impeller 3 and diversion component 4, conveyance conduit 2 include that level-one export pipeline section 21, intermediate connection tube section 22 and second level import
Pipeline section 23, level-one exports pipeline section 21 and second level imports being arranged radially along sencond stage impeller 3 (one stage impeller 1) of pipeline section 23, and centre connects
Axial direction setting of the nozzle belt 22 along sencond stage impeller 3 (one stage impeller 1).Since above-mentioned secondary inlet structure is imitated with above-mentioned technology
Fruit, the double end suspended centrifuge with above-mentioned secondary inlet structure should also have same technical effect, herein no longer one by one
It is tired to state.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of secondary inlet structure, including sencond stage impeller (3) and along two of the axis arrangement perpendicular to the sencond stage impeller (3)
Grade imports pipeline section (23), which is characterized in that the second level, which imports on the side wall of pipeline section (23), to be had and the sencond stage impeller (3)
The secondary inlet of inlet side alignment, the end that the second level imports pipeline section (23) is enclosed construction；
It further include being set to the second level to import the diversion component (4) being correspondingly arranged in pipeline section (23) and with the secondary inlet,
The diversion component (4) is inclined along the airflow direction that the second level imports pipeline section (23) to the direction far from the sencond stage impeller (3)
Tiltedly；
The diversion component (4) includes deflector (41) derived from multiple axial directions being used for by air-flow along the sencond stage impeller (3),
Multiple deflectors (41) arrange along the extending direction of the diversion component (4)；Between the two neighboring deflector (41)
Gap is identical；
The deflector (41) has segmental arc (411)；The segmental arc (411) far from the sencond stage impeller (3) a side to
Upper bending；
The deflector (41) also has the level connecting with the segmental arc (411) close to the side of the sencond stage impeller (3)
Section (412)；
Diversion component angle a is equal to deflector angle d；
The diversion component angle a is the angle that the diversion component (4) and the second level import pipeline section (23)；
The tangent line of the side of the deflector angle d for the segmental arc (411) far from the horizontal segment (412) and the second level
Import the angle of pipeline section (23).
2. secondary inlet structure as described in claim 1, which is characterized in that the gap edge of the two neighboring deflector (41)
The airflow direction that the second level imports pipeline section (23) increases.
3. secondary inlet structure as claimed in claim 2, which is characterized in that two of diversion component (4) bottom are adjacent
Gap c ' between the deflector (41) is between two adjacent deflectors (41) at the top of the diversion component (4)
Twice of gap c.
4. secondary inlet structure as described in claim 1, which is characterized in that the value range of the diversion component angle a is
45°±5°。
5. secondary inlet structure as described in claim 1, which is characterized in that the diversion component (4) further includes fixed support
The flase floor of the deflector (41), the grille strip being arranged thereon with multiple extending directions along the diversion component (4)
(42)。
6. secondary inlet structure as claimed in claim 5, which is characterized in that the gap edge of the two neighboring grille strip (42)
The airflow direction that the second level imports pipeline section (23) increases.
7. secondary inlet structure as claimed in claim 6, which is characterized in that between the bottom end of the two neighboring grille strip (42)
Gap b ' is twice of the tip clearance b of the two neighboring grille strip (42).
8. secondary inlet structure as claimed in claims 6 or 7, which is characterized in that the grille strip (42) is along the diversion division
The center of part (4) is tilted to both sides.
9. a kind of double end suspended centrifuge, which is characterized in that the secondary inlet structure of the double end suspended centrifuge is such as
The described in any item secondary inlet structures of claim 1-8.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105298868A CN105298868A (en) | 2016-02-03 |
| CN105298868B true CN105298868B (en) | 2019-04-26 |
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ID=55196520
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| Application Number | Title | Priority Date | Filing Date |
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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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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB727297A (en) * | 1952-06-30 | 1955-03-30 | Garrett Corp | Multistage 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 |
-
2015
- 2015-12-01 CN CN201510874682.3A patent/CN105298868B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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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| CN105298868A (en) | 2016-02-03 |
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