CN108678998B - A kind of centrifugal compressor adjustable diffuser type blade construction - Google Patents
A kind of centrifugal compressor adjustable diffuser type blade construction Download PDFInfo
- Publication number
- CN108678998B CN108678998B CN201810252690.8A CN201810252690A CN108678998B CN 108678998 B CN108678998 B CN 108678998B CN 201810252690 A CN201810252690 A CN 201810252690A CN 108678998 B CN108678998 B CN 108678998B
- Authority
- CN
- China
- Prior art keywords
- mounting disc
- support plate
- groove
- arc
- blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
- F04D29/444—Bladed diffusers
Abstract
The invention discloses a kind of centrifugal compressor adjustable diffuser type blade constructions, it include: support plate one, multiple adjustable diffuser type blade assemblies and support plate two, support plate one with support plate two is concentric is fixedly connected, and be ring structure, adjustable diffuser type blade assembly is equidistantly uniformly distributed in a ring and is installed between support plate one and support plate two；Diffuser runner is formed between adjustable diffuser type blade assembly, a series of diffuser runners form diffuser, and the circulation area of diffuser is adjusted by the rotation of adjustable diffuser type blade assembly；At least one of two end faces of adjustable diffuser type blade assembly are placed in the groove in support plate one or support plate two, and then achieve the purpose that quantity of gas leakage caused by reducing traditional adjustable diffuser type both ends of the blade gap, thus the corresponding working efficiency for improving centrifugal compressor.
Description
Technical field
The present invention relates to centrifugal compressor technical fields, more particularly to a kind of for reducing tip leakage flow
Centrifugal compressor adjustable diffuser type blade construction.
Background technique
Variable-geometry centrifugal compressor can be with vehicular engine in full working scope model due to the adjustable feature of its flow area
Interior formation matched well is enclosed, so that the performances such as acceleration, the dynamic property of engine are more effectively promoted than other centrifugal compressors,
Thus it is increasingly used on vehicular engine.It, need to be in diffuser vane to guarantee being freely rotated for diffuser vane
Both ends of the surface and its respectively design has certain gap between opposite wall surface.Not due to diffuser blade pressure face and suction surface pressure
Together, and both ends of the surface and its gap respectively between opposite wall surface cause gas to be let out on one side by pressure higher one towards pressure is lower
Leakage, the leakage can cause being greatly lowered for compressor efficiency.In particular, when diffuser vane aperture is smaller, compressor
Loss in efficiency mostlys come from flow leakage caused by diffuser vane both ends of the surface gap.
It therefore, is the fuel consumption rate for improving centrifugal compressor efficiency, reducing engine, how providing one kind can reduce
The diffuser vane structure of flow leakage caused by diffuser vane both ends of the surface gap is those skilled in the art's urgent need to resolve
Problem.
Summary of the invention
In view of this, can effectively reduce the present invention provides a kind of centrifugal compressor adjustable diffuser type component due to expanding
Flow leakage caused by the gap in depressor both ends of the blade face, and then improve centrifugal compressor efficiency and reduce the fuel oil of engine
Efficiency.
To solve the above problems, the present invention adopts the following technical scheme:
A kind of centrifugal compressor adjustable diffuser type blade construction, comprising: support plate one, multiple adjustable diffuser type blade assemblies
With support plate two, the support plate one and the concentric setting of the support plate two, and be ring structure, the adjustable diffuser type
Blade assembly is uniformly distributed in a ring and is installed between the support plate one and the support plate two；
In a ring and equidistantly equally distributed multiple concentric the first grooves and position are provided in the support plate one
First through hole in the first groove slot bottom center；
The adjustable diffuser type blade assembly includes first rotating shaft, the first mounting disc and blade；The one of the first rotating shaft
End is successively fixedly connected with first mounting disc and the blade, and the other end penetrates rotation in the first through hole；Described
One mounting disc is located at first inside grooves, and is adapted to first groove；The blade is far from first mounting disc
One end be arranged close to the support plate two；
Diffuser runner is formed between the adjustable diffuser type blade assembly, a series of diffuser runners form diffuser,
The circulation area of diffuser is adjusted by the rotation of the adjustable diffuser type blade assembly.
It can be seen via above technical scheme that compared with prior art, the beneficial effects of the present invention are:
The present invention is provided in a ring and equidistantly equally distributed multiple the first concentric grooves in support plate one
With the first through hole for being located at the first groove slot bottom, the first mounting disc in adjustable diffuser type blade assembly is located at corresponding first
Inside grooves, and its shape matches, and the gap of the both ends of the surface of traditional adjustable diffuser type blade is adjustable diffuser type leaf
Gap between the both ends of the surface and support plate one and support plate two of piece component, due to the quantity of gas leakage master of adjustable diffuser type blade
It to be leaked from the gas in adjustable diffuser type blade assembly both ends of the surface gap, in this regard, the present invention has made following improvement, it can
The gap between a diffuser vane end face therein and support plate one is adjusted to be transferred to the first mounting disc corresponding in support plate one
The gap between the first groove being arranged；Design in this way, with traditional adjustable diffuser type blade assembly both ends of the surface and branch
The leakage of gas caused by gap between support plate one and support plate two compares, and the present invention can effectively reduce adjustable diffuser type blade
Quantity of gas leakage between end face and support plate one, and centrifugal compressor can be largely reduced due to adjustable diffuser type leaf
The both ends gas of piece leaks bring loss in efficiency.
Preferably, it is provided in a ring and equidistantly equally distributed multiple second grooves in the support plate two and is located at
The circular groove of the second groove slot bottom, second groove is equal with first number of recesses and is arranged in a one-to-one correspondence；It is described
Adjustable diffuser type blade assembly further includes the second mounting disc and the second shaft, the first rotating shaft, first mounting disc, described
Blade, second mounting disc and second shaft are fixedly connected sequentially；Second mounting disc is located at second groove
Interior, second shaft penetrates rotation in the circular groove.
It can be seen via above technical scheme that compared with prior art, the present invention is also provided in support plate two and the
One-to-one second groove of two mounting discs and circular groove, by Conventional tunable diffuser vane both ends of the surface and support plate one and support plate
Gap between two be transferred to the disk of adjustable diffuser type both ends of the blade between corresponding groove in support plate one and support plate two
Gap reduces the disk of adjustable diffuser type both ends of the blade and draws with the gap between corresponding groove in support plate one and support plate two
The quantity of gas leakage risen, to further improve the working efficiency of centrifugal compressor.
Preferably, first mounting disc is consistent with the outer contour shape of second mounting disc, is circle or by three
Section arc or four sections of arcs are successively smoothly connected the non-circular of composition, the foreign steamer of first mounting disc and second mounting disc
Profile shape is used to adapt to the maximum opening width and minimum opening width of the blade.
Preferably, the blade is made of the first blade and the second blade, first blade and second blade one
Body connection, and first blade, between first mounting disc and second mounting disc, second blade stretches out
The outer profile edge of first mounting disc and second mounting disc, and second blade stretches out first mounting disc
And the length at the outer profile edge of second mounting disc is greater than the spacing between two neighboring first mounting disc.
As shown from the above technical solution, compared with prior art, the opening width of blade of the present invention is freely adjustable, and can be with
Guarantee that the lap between two adjacent blades will not interfere, meanwhile, blade end wall clearance leakage is substantially reduced.
Preferably, the first rotating shaft passes through the first through hole and connect with external drive mechanism.
As shown from the above technical solution, compared with prior art, first rotating shaft is connect with external drive mechanism, and is controlled by
External actuator is rotated by external actuator driven first rotating shaft, controls the opening and closure of adjustable diffuser type blade assembly.
Preferably, second shaft is circumferentially equipped with second shaft shoulder by the side of close end；Second shaft shoulder is located at
Between second mounting disc and the circular groove, and the diameter of second shaft shoulder is greater than the diameter of the circular groove.
Preferably, the first rotating shaft is circumferentially equipped with first shaft shoulder by the side of close end；First shaft shoulder is located at
Between first mounting disc and the first through hole, and the diameter of first shaft shoulder is greater than the straight of the first through hole
Diameter.
Preferably, the end face of first shaft shoulder is contacted with the slot bottom of first groove, the end face of second shaft shoulder
It is contacted with the slot bottom of second groove.
As shown from the above technical solution, compared with prior art, pass through the slot bottom of the end face of first shaft shoulder and the first groove
It is in contact, the end face of second shaft shoulder is in contact with the slot bottom of the second groove, reduces turntable and the first groove and the second groove slot
The contact area at bottom, and then reduce the resistance of adjustable diffuser type blade rotation.
Preferably, pass through bolt or positioning finger setting between the support plate one and the support plate two.
Preferably, between first mounting disc and first groove, second mounting disc and second groove
Between, between second shaft and the circular groove, there are can guarantee between the first rotating shaft and the first through hole
The gap that the adjustable diffuser type blade assembly is freely rotated, and the gap size is 0.05~0.15mm.
As shown from the above technical solution, compared with prior art, the gap design of 0.05-0.15mm, works as adjustable diffuser type
When component around blade assembly deforms under the operating conditions such as heated, it can guarantee adjustable diffuser type blade group of the present invention
The normal rotation of part.
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
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawing is structural schematic diagram of the invention；
Fig. 2 attached drawing is structural blast schematic diagram of the invention；
Fig. 3 attached drawing is the structural schematic diagram of support plate one of the present invention；
Fig. 4 attached drawing is the structural schematic diagram of support plate two of the present invention；
Fig. 5 attached drawing is the structural schematic diagram of adjustable diffuser type blade assembly of the present invention；
Fig. 6 attached drawing is the installation partial sectional view of adjustable diffuser type blade assembly of the present invention；
Fig. 7 attached drawing is installation partial sectional view of the present invention using bolt positioning；
Fig. 8 attached drawing is that the first mounting disc of adjustable diffuser type blade assembly of the present invention turns in the first groove of support plate one
Dynamic structural schematic diagram；
Fig. 9 attached drawing is that the second mounting disc of adjustable diffuser type blade assembly of the present invention turns in the second groove of support plate two
Dynamic structural schematic diagram；
Figure 10 attached drawing is the partial schematic diagram of diffuser of the present invention.
Specific embodiment
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.
As depicted in figs. 1 and 2, the embodiment of the invention discloses a kind of centrifugal compressor adjustable diffuser type blade construction, packets
Include support plate 1, multiple adjustable diffuser type blade assemblies 2 and support plate 23, support plate 1 and support plate 23 is concentric sets
It sets, and is ring structure, adjustable diffuser type blade assembly 2 is uniformly distributed in a ring and equidistantly and is installed on support plate 1
Between support plate 23；
As shown in figure 3, being provided with equally distributed multiple concentric the first grooves 11 and position in a ring in support plate 1
In the first through hole 12 of 11 slot bottom of the first groove；First groove 11 has the first groove floor 111, the first groove lateral surface 112
With the first groove medial surface 113, the first groove floor 111, the first groove lateral surface 112 and the first groove medial surface 113 difference
Smooth excessiveness connection；
Adjustable diffuser type blade assembly 2 includes blade 24, the first mounting disc 23 and first rotating shaft 21；The one of first rotating shaft 21
End is successively fixedly connected with the first mounting disc 23 and blade 24, and the other end penetrates rotation in first through hole 12；First mounting disc 23
It is adapted to inside the first groove 11, and with the first groove 11；The one end of blade 24 far from the first mounting disc 23 is close to support plate
23 settings；
Diffuser runner is formed between adjustable diffuser type blade assembly 2, a series of diffuser runners form diffuser, pass through
Adjustable diffuser type blade assembly 2 rotates to adjust the circulation area of diffuser.
In the present embodiment, in a ring and equidistantly equally distributed multiple concentric first are provided in support plate one
Groove and first through hole positioned at the first groove slot bottom, the first mounting disc in adjustable diffuser type blade assembly are located at corresponding
First inside grooves, and its shape matches, and the gap of the both ends of the surface of traditional adjustable diffuser type blade is adjustable diffusion
Gap between the both ends of the surface and support plate one and support plate two of device blade assembly, since the gas of adjustable diffuser type blade leaks
Amount mostlys come from the gas leakage of gap between two ends, in this regard, the present invention has made following improvement, by adjustable diffuser type blade assembly
Wherein the gap between an end face and support plate one is transferred to the first groove being correspondingly arranged in the first mounting disc and support plate one
Between gap；Design in this way can effectively reduce the gas between adjustable diffuser type vane end faces and support plate one
Leakage rate, and can largely reduce both ends gas leakage bring effect of the centrifugal compressor due to adjustable diffuser type blade
Rate loss.
In order to further eliminate the gap gas leakage bring loss in efficiency due to adjustable diffuser type both ends of the blade, such as
Shown in Fig. 4, it is provided in a ring and equidistantly equally distributed multiple the second concentric grooves 31 in support plate 23 and is located at
The quantity of the circular groove 32 of second groove, 31 slot bottom, the second groove 31 and the first groove 11 is equal and is arranged in a one-to-one correspondence；Adjustable expansion
Depressor blade assembly 2 further includes the second mounting disc 25 and the second shaft 27, first rotating shaft 21, the first mounting disc 23, blade 24,
Two mounting discs 25 and the second shaft 27 are fixedly connected sequentially；Second mounting disc 25 is located in the second groove 31, and the second shaft 27 is worn
Enter rotation in circular groove 32；Second groove 31 has on the inside of the second groove floor 311, the second groove lateral surface 312 and the second groove
Face 313 has circular groove bottom surface 321 and circular groove side 322 on circular groove 32.
In the present embodiment, the gap between Conventional tunable diffuser vane both ends of the surface and support plate one and support plate two is shifted
To mounting disc and the gap between corresponding groove in support plate one and support plate two of adjustable diffuser type both ends of the blade, reducing can
The mounting disc at diffuser vane both ends is adjusted to let out with gas caused by the gap between corresponding groove in support plate one and support plate two
Leakage quantity, to further improve the working efficiency of centrifugal compressor.
In order to further optimize the above technical scheme, blade 24 is made of the first blade 243 and the second blade 244, and first
244 integrally connected of blade 243 and the second blade, and the first blade 243 is between the first mounting disc 23 and the second mounting disc 25,
Second blade 244 stretches out the outer profile edge of the first mounting disc 23 and the second mounting disc 25, and the second blade 244 stretches out first
The length at the outer profile edge of mounting disc 23 and the second mounting disc 25 is greater than the gap between two neighboring first mounting disc 23.
In order to further optimize the above technical scheme, as shown in Figure 5 and Figure 6, the first mounting disc 23 and the second mounting disc 25
Outer profile be connected smoothly and form by four arcs, there is first side 231, second side in the first mounting disc 23
232, third side 233, the 4th side 234 and the first mounting disc bottom surface 235, wherein the outer profile of first side 231 is arc
One, the outer profile of second side 232 is arc two, and the outer profile of third side 233 is arc three, and the outer profile of the 4th side 234 is
Arc four, wherein arc one, arc two and arc three are close to the axis setting of support plate 1, and arc four is set far from the axis of support plate 1
It sets；First side 231, second side 232, third side 233 and the 4th side 234 are successively smoothly connected and respectively with
One mounting disc bottom surface 235 is connected smoothly；There is the 5th side 251, the 6th side 252, heptalateral in second mounting disc 25
Face 253, the 8th side 254 and the second mounting disc bottom surface 255, wherein the outer profile of the 5th side 251 is arc five, the 6th side
252 outer profile is arc six, and the outer profile in heptalateral face 253 is arc seven, and the outer profile of the 8th side 254 is arc eight, arc five, arc
Six and arc seven be close to support plate 1 axis setting, arc eight far from support plate 1 axis be arranged；5th side 251,
Six sides 252, heptalateral face 253 and the 8th side 254 are successively smoothly connected and flat with the second mounting disc bottom surface 255 respectively
It slips over and crosses connection.
In another embodiment, the outer contour shape of the first mounting disc 23 and the second mounting disc 25 is round or by three section
Circular arc forms non-circular.
First rotating shaft 21 pass through first through hole 12, and the length of first rotating shaft 21 be greater than first through hole 12 depth, second
Shaft 27 penetrates circular groove 32, and wherein first rotating shaft 21 passes through first through hole 12 and connect with external drive mechanism.First rotating shaft 21
First shaft shoulder 22 is circumferentially installed by the side of close end, the second shaft 27 is circumferentially equipped with second shaft shoulder by the side of close end
26；There is first axle shoulder end face 221 on first shaft shoulder 22, first shaft shoulder 22 be located at the first mounting disc 23 and first through hole 12 it
Between, first axle shoulder end face 221 is contacted with the first groove floor 111, and the diameter of first shaft shoulder 22 is greater than first through hole 12
Diameter；On second shaft shoulder 26 have the second shaft shoulder end face 261, second shaft shoulder 26 between the second mounting disc 25 and circular groove 32,
Second shaft shoulder end face 261 is contacted with the second groove floor 311, and the diameter of second shaft shoulder 26 is greater than the diameter of circular groove 32.The
There is axis second end end face 272 and the second end side surface of axis 271 in two shafts 27, there is circular groove side 322 and circular groove on circular groove 32
Bottom surface 321, circular groove bottom surface 321 is corresponding with axis second end end face 272, and circular groove side 322 and the second end side surface of axis 271 are opposite
It answers.
First mounting disc 23 is mounted on inside the first groove 11, the first mounting disc bottom surface 235 and 111 phase of the first groove floor
It is corresponding, first side 231, second side 232 and third side 233 and 113 phase of the first groove medial surface of the first mounting disc 23
Corresponding, the 4th side 234 is corresponding with the first groove lateral surface 112.
Second mounting disc 25 is mounted on inside the second groove 31, the second mounting disc bottom surface 255 and 311 phase of the second groove floor
It is corresponding, the 5th side 251, the 6th side 252 and the heptalateral face 253 of the second mounting disc 25 and 313 phase of the second groove medial surface
Corresponding, the 8th side 254 is corresponding with the second groove lateral surface 312.
It is more favorable, between the first mounting disc 23 and the first groove 11, between the second mounting disc 25 and the second groove 31, the
Between two shafts 27 and circular groove 32, there are can guarantee adjustable diffuser type blade group between first rotating shaft 21 and first through hole 12
The gap that part 2 is freely rotated, and this gap size is 0.05~0.15mm.By the way that there are 0.05-0.15mm between each face
Gap design, can be when the component around adjustable diffuser type blade assembly 2 deforms under the operating conditions such as heated, still
It being capable of normal rotation.
Further, pass through bolt or positioning finger setting between support plate 1 and support plate 23.
As shown in fig. 7, in one embodiment, being cooperated between support plate 1 and support plate 23 by bolt and nut and being determined
Position, support plate 1 offer multiple stepped holes, and support plate 22 offers multiple counterbores, and counterbore is consistent with step hole number and one
One is corresponding, and stepped hole is made of concentric the first large diameter hole 14 and the first small diameter bore 13, and counterbore is by concentric second
Large diameter hole 34 and the second small diameter bore 33 composition, bolt 5 sequentially pass through the first large diameter hole 14, the first small diameter bore 13, the
Two small diameter bores 33 and the second large diameter hole, nut 4 are individually fixed in the both ends of bolt 5 and are located at the first large diameter hole 14
Inside the second large diameter hole 34, so that support plate 1 and support plate 23 be made to cooperate positioning.
Further, as shown in Figure 8 and Figure 9, the first mounting disc 23 is identical with 25 shape of the second mounting disc, outer contour
It being made of four arcs, the first mounting disc 23 rotates in the first groove 11, and the second mounting disc 25 rotates in the second groove 31,
The first side 231 of first mounting disc 23 and third side 233, the 5th side 251 and heptalateral face 253 of the second mounting disc 25
Adapt to the maximum opening width and minimum aperture of blade 24.
It further, as shown in Figure 10, is diffuser partial schematic diagram of the present invention, blade 24 has blade first side
241 and the blade second side 242 opposite with its, the blade first side 241 of each blade 24 and blade 24 adjacent thereto
Blade second side 242 form diffuser runner, a series of diffuser runner is uniformly distributed in a ring along support plate 1,
Form diffuser；By adjusting a series of rotation of blades 24, the size of the circulation area of adjustable each diffuser runner, from
And achieve the purpose that adjust diffuser, and then change the flow of gas.
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.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
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 (7)
1. a kind of centrifugal compressor adjustable diffuser type blade construction characterized by comprising support plate one (1), multiple adjustable expansions
Depressor blade assembly (2) and support plate two (3)；The support plate one (1) and the concentric setting of the support plate two (3), and
For ring structure；The adjustable diffuser type blade assembly (2) is uniformly distributed in a ring and equidistantly and is installed on the support plate
Between one (1) and the support plate two (3)；
Be provided on the support plate one (1) in a ring and equidistantly equally distributed multiple concentric the first grooves (11) and
Positioned at the first through hole (12) of the first groove (11) slot bottom；First groove (11) outer profile is in approximate circle, by two sections of arcs
Composition；In a ring and equidistantly equally distributed multiple concentric the second grooves (31) are provided on the support plate two (3)
With the circular groove (32) for being located at the second groove (31) slot bottom；
The adjustable diffuser type blade assembly (2) includes first rotating shaft (21), the first mounting disc (23), blade (24), the second peace
Sabot (25) and the second shaft (27)；One end of the first rotating shaft (21) successively with first mounting disc (23) and the leaf
Piece (24) is fixedly connected, and the other end penetrates rotation in the first through hole (12)；First mounting disc (23) is located at described the
One groove (11) is internal, and is adapted to first groove (11)；The blade (24) is far from first mounting disc (23)
One end is arranged close to the support plate two (3)；
First mounting disc (23) is consistent with the outer contour shape of second mounting disc (25), successively smoothed by four sections of arcs
Cross the non-circular of connection composition；First mounting disc (23) rotation, second mounting disc (25) in the first groove (11) is recessed second
Rotation in slot (31), the first mounting disc (23) include first side (231), second side (232), third side (233) and the
Four sides (234)；
Wherein, the outer profile of first side (231) is arc one, and the outer profile of second side (232) is arc two, third side
(233) outer profile is arc three, and the outer profile of the 4th side (234) is arc four, and wherein arc one, arc two and arc three are close to support
The axis of disk one (1) is arranged, and arc four is arranged far from the axis of support plate one (1)；
Second mounting disc (25) includes: the 5th side (251), the 6th side (252), heptalateral face (253) and the 8th side
(254)；
Wherein, the outer profile of the 5th side (251) is arc five, and the outer profile of the 6th side (252) is arc six, heptalateral face
(253) outer profile is arc seven, and the outer profile of the 8th side (254) is arc eight, and arc five, arc six and arc seven are close to support plate one
(1) axis setting, arc eight are arranged far from the axis of support plate one (1)；
The first side (231) and third side (233), the 5th side (251) and heptalateral face (253) adapt to blade (24)
Maximum opening width and minimum aperture；
The blade (24) is made of the first blade (243) and the second blade (244)；First blade (243) and described the
Two blades (244) integrally connected, and first blade (243) is located at first mounting disc (23) and second mounting disc
(25) between；Second blade (244) stretches out the outer profile of first mounting disc (23) and second mounting disc (25)
Edge setting, and second blade (244) stretch out first mounting disc (23) and second mounting disc (25) outside
The length of contour edge is greater than the spacing between two adjacent first mounting discs (23)；
Diffuser runner is formed between the adjustable diffuser type blade assembly (2), a series of diffuser runners form diffuser, lead to
The rotation of the adjustable diffuser type blade assembly (2) is crossed to adjust the circulation area of diffuser.
2. a kind of centrifugal compressor adjustable diffuser type blade construction according to claim 1, which is characterized in that described second
The quantity of groove (31) and first groove (11) is equal and is arranged in a one-to-one correspondence；The first rotating shaft (21), described first
Mounting disc (23), the blade (24), second mounting disc (25) and second shaft (27) are fixedly connected sequentially；It is described
Second mounting disc (25) is located in second groove (31), and second shaft (27) penetrates rotation in the circular groove (32).
3. a kind of centrifugal compressor adjustable diffuser type blade construction according to claim 1, which is characterized in that described first
Shaft (21) passes through the first through hole (12) and connect with external drive mechanism.
4. a kind of centrifugal compressor adjustable diffuser type blade construction according to claim 2, which is characterized in that described second
Shaft (27) is circumferentially equipped with second shaft shoulder (26) by the side of close end；Second shaft shoulder (26) is located at second installation
Between disk (25) and the circular groove (32), and the diameter of second shaft shoulder (26) is greater than the diameter of the circular groove (32).
5. a kind of centrifugal compressor adjustable diffuser type blade construction according to claim 1 or 4, which is characterized in that described
First rotating shaft (21) is circumferentially equipped with first shaft shoulder (22) by the side of close end；First shaft shoulder (22) is located at described first
Between mounting disc (23) and the first through hole (12), and the diameter of first shaft shoulder (22) is greater than the first through hole
(12) diameter.
6. a kind of centrifugal compressor adjustable diffuser type blade construction according to claim 1, which is characterized in that the support
Pass through bolt or positioning finger setting between disk one (1) and the support plate two (3).
7. a kind of centrifugal compressor adjustable diffuser type blade construction according to claim 2, which is characterized in that described first
Between mounting disc (23) and first groove (11), between second mounting disc (25) and second groove (31), institute
State between the second shaft (27) and the circular groove (32), between the first rotating shaft (21) and the first through hole (12) there are
Can guarantee the gap that the adjustable diffuser type blade assembly (2) is freely rotated, and the gap size be 0.05~
0.15mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810252690.8A CN108678998B (en) | 2018-03-26 | 2018-03-26 | A kind of centrifugal compressor adjustable diffuser type blade construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810252690.8A CN108678998B (en) | 2018-03-26 | 2018-03-26 | A kind of centrifugal compressor adjustable diffuser type blade construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108678998A CN108678998A (en) | 2018-10-19 |
| CN108678998B true CN108678998B (en) | 2019-10-08 |
Family
ID=63800529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810252690.8A Active CN108678998B (en) | 2018-03-26 | 2018-03-26 | A kind of centrifugal compressor adjustable diffuser type blade construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108678998B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011196280A (en) * | 2010-03-19 | 2011-10-06 | Mitsubishi Heavy Ind Ltd | Flow regulating device of rotary machine |
| CN202768450U (en) * | 2012-09-26 | 2013-03-06 | 北京理工大学 | Gas compressor inlet negative pressure adjusting device with variable diameters |
| CN102900479B (en) * | 2012-10-30 | 2014-10-01 | 北京理工大学 | Variable nozzle turbocharger regulating mechanism integrated on turbine shell |
| US10018107B2 (en) * | 2015-07-10 | 2018-07-10 | Kangyue Technology Co., Ltd | Balanced vanes and integrated actuation system for a variable geometry turbocharger |
| CN105201557A (en) * | 2015-09-21 | 2015-12-30 | 重庆大学 | Rotary blade machine |
| CN205669410U (en) * | 2016-06-02 | 2016-11-02 | 四川泰博流体科技有限公司 | Anti-jamming zero clearance turbo-expander adjustable nozzle |
-
2018
- 2018-03-26 CN CN201810252690.8A patent/CN108678998B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108678998A (en) | 2018-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8100629B2 (en) | Turbomachine casing with treatment, a compressor, and a turbomachine including such a casing | |
| CN106949245B (en) | It is a kind of from spin-ended convergence type rotary seal structure | |
| US8123471B2 (en) | Variable stator vane contoured button | |
| US7549838B2 (en) | Taking air away from the tips of the rotor wheels of a high pressure compressor in a turbojet | |
| JP6940685B2 (en) | Turbine blades and how to service turbine blades | |
| CN104196572B (en) | A kind of double; two disc turbine disks with dish chamber diversion rib plate | |
| RU2564158C2 (en) | Method of air flow rate regulation in centrifugal compressor of turbo-machine and diffuser for its implementation | |
| CN104153820B (en) | A kind of big meridian expansion variable geometry turbine with stepped ramp type sphere end wall | |
| CN104061340B (en) | Son is closed for gas switch | |
| CN108425708B (en) | Combined vortex reducer structure | |
| CN105626157B (en) | A kind of turbine of the multiple wheel rim sealing structure including self adaptation fumarole | |
| US20190017402A1 (en) | Flexible damper for turbine blades | |
| CN108678998B (en) | A kind of centrifugal compressor adjustable diffuser type blade construction | |
| CN104153821B (en) | A kind of variable geometry turbine with variable stator vane angle from bleed-jet structure | |
| EP2192268A2 (en) | Method and system for cooling turbine engine components | |
| CN104912604B (en) | A kind of have the spin-ended anti-rotating plate structure pressing down and bestirring oneself | |
| CN108730025B (en) | A kind of turbocharger with end-clearance-free adjustable nozzle ring blade assembly | |
| CN108775261A (en) | A kind of turbocharger with radial-flow turbine nozzle ring adjustable vane structure | |
| CN109611346A (en) | Centrifugal compressor and its design method | |
| CN211819519U (en) | Turbine static disk, turbine and gas turbine | |
| CN109519397A (en) | Centrifugal compressor and its design method | |
| CN113864243A (en) | Axial flow compressor for improving full-circumferential flow field | |
| CN114776389A (en) | Shrouded turbine with flange plate step casing | |
| CN108343639B (en) | Integral type end-clearance-free centrifugal compressor adjustable diffuser type blade assembly | |
| CN206221266U (en) | The balance weight of compressor, the electric machine assembly of compressor and compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |