CN107989804A - Birotor is to turning punching press compressor - Google Patents
Birotor is to turning punching press compressor Download PDFInfo
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- CN107989804A CN107989804A CN201711192046.8A CN201711192046A CN107989804A CN 107989804 A CN107989804 A CN 107989804A CN 201711192046 A CN201711192046 A CN 201711192046A CN 107989804 A CN107989804 A CN 107989804A
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- compressor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D21/00—Pump involving supersonic speed of pumped fluids
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- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
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- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
- F04D29/324—Blades
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- 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
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
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- 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
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/545—Ducts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/302—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor characteristics related to shock waves, transonic or supersonic flow
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to gas boosting technical field, it is related to a kind of birotor to turning punching press compressor, including rotor and stator, wherein, rotor is made of impeller and axis, including preceding rotor and rear rotor, and the impeller of preceding rotor is diagonal flow type impeller or ultra-wide peg flow impeller, the impeller of rotor can be axial wheel or diagonal impeller or centrifugal impeller according to specific needs afterwards；Stator includes casing, air inlet pipe, exhaust pipe and other affiliated facilities.The mechanism of ram-compressed is incorporated into rotor dynamic formula compressor by the present invention, supersonic speed is reached relative to rear rotor to the exit flow that turns to make preceding rotor using two rotors, so as to be created conditions for rear rotor using ram-compressed, high pressure ratio output can be achieved, with the simple in structure, advantage such as compression ratio is high, efficiency is higher, both can the gas compressing equipment independent as one use, can also be used as a component of other devices (such as aero-engine, gas turbine).
Description
Technical field
The invention belongs to gas boosting technical field, is related to a kind of compressor, is specifically that a kind of birotor is calmed the anger to turning punching press
Machine.
Background technology
The compressor of broad sense generally refers to the mechanical equipment that can increase gas pressure, is to gas by mechanical device
Acting, so that gas pressure be improved.Compressor both can be widely used in chemical industry, the energy, machine as a single equipment
The all trades and professions such as tool, metallurgy, are also used as the important component of the power-equipments such as gas turbine, aero-engine.
At present, compressor species is more, is broadly divided into two major class of positive displacement and rotor dynamic formula, plsitive displacement compressor
Gas pressure mainly is improved by varying the mode of volume, rotor dynamic formula compressor then mainly increases gas by turbomachine
The speed of body is converted into static pressure to increase gas dynamic pressure, then by dynamic pressure.Plsitive displacement compressor be divided into again piston type, diaphragm type,
Vortex, spiral lobe compressor etc., rotor dynamic formula compressor mainly have two axial-flow compressor, centrifugal-flow compressor bases
This classification, some compressors are the combinations of this two classes compressor, also have a kind of compressor between axial-flow type and it is centrifugal between, quilt
Referred to as diagonal flow type compressor, but this compressor is not common in practical applications.
Also a kind of compressor is referred to as punching press compressor, and this air compressor structure is simple, only air intake duct, does not turn
Son, is mainly pressurized using the ram-compressed of inlet air flow, but this compressor is typically only capable to be operated under the conditions of supersonic speed.
Centrifugal-flow compressor air-flow primarily radially flows, and has the advantages that simple in structure, single-stage pressure ratio is high, extensive use
In every field, but there are less efficient, front face area is big, and maximum, minimum discharge is limited by operating mode.Axial flow compressor air-flow
Predominantly axially flow, have the advantages that flow is big, efficient, but there are single-stage pressure ratio is relatively low, high pressure ratio when series is more, structure
The shortcomings of more complicated.
The content of the invention
The object of the present invention is to provide a kind of birotor to turning punching press compressor, it is to be incorporated into the mechanism of ram-compressed
In rotor dynamic formula compressor, using two rotors to turning to make the relative velocity of air-flow reach supersonic speed, so as to be punching press pressure
Contracting creates conditions.
Principle of the present invention：The rotor of two direction of rotation opposite (to turning) using front and rear setting, makes air-flow
In preceding rotor in flow process, the blade of preceding rotor does work air-flow so that stream pressure and flowing velocity increase, in forward
At subexit, it is desirable to air-flow not only will axially flow, while rotate, and rotary speed (tangential velocity) is as big as possible,
When the swirling eddy of preceding rotor outlet enters rear rotor, since rear rotor is opposite with the direction of rotation of preceding rotor (to turning), rotation
Air-flow is larger relative to the blade relative velocity of rear rotor, after relative velocity exceedes velocity of sound, it is possible to lead in rear rotor air-flow
Air-flow is pressurized using ram-compressed in road, i.e., air-flow forms oblique shock wave and normal shock wave (oblique shock wave in rear rotor gas channel
Multishock is combined into normal shock wave), after air-flow passes through shock wave, pressure can raise suddenly, and flow velocity then declines suddenly, it is seen then that this
Invention is with common rotor dynamic formula compressor difference：Rotor is mainly pressurized using ram-compressed afterwards.
The technical solution adopted in the present invention：
A kind of birotor to turning punching press compressor, including rotor and stator, wherein, rotor is rotating moving part, by leaf
Wheel and shaft are formed, and have blade on impeller, its concrete structure because the type of impeller is different and difference, generally include wheel disc and
A part of axle envelope, rotor include preceding rotor and the rear rotor that tandem is set, and the impeller of preceding rotor is diagonal flow type impeller, rear to turn
The impeller of son can make choice according to needs such as the direction of rear rotor outlet air-flow, overall pressure tatios, can be axial wheel, can also
It is diagonal impeller or centrifugal impeller, the rotating speed of preceding rotor and rear rotor can be designed as needed, and rotating speed can be equal,
Can not also be equal, it can respectively be driven, can also be realized by a power set by gear mechanism by two power set
Driving to two rotors；Power set can be motor, turbine or other power set；In order to realize two working rotors
When the rotating speed and moment of torsion that need, variable transmission mechanism, such as change gear box can be set between power set and armature spindle.It is quiet
Son is non-moving parts, the needs and the difference of working environment designed according to compressor, its concrete structure can difference, lead to
Often including casing (casing), air inlet pipe, radome fairing, (in some cases, radome fairing can rotate together with rotor, it is to turn at this time
A part for son), exhaust pipe (gas collecting tube) and other necessary auxiliary devices, such as：The sensors such as rotating speed, temperature, pressure and
Lubricating system, control system etc..The supporting scheme of rotor can need to make choice according to the concrete structure and performance of compressor,
Supporting is by bearing realization, and bearing can be mechanical bearing, fluid bearing, air bearing or other kinds of bearing, bearing
Quantity and place position can be determined as needed.
In order to utilize ram-compressed to be pressurized in rear rotor, it is desirable to which the air-flow of preceding rotor outlet does not change (or smaller change)
Direction enters in rear rotor, and therefore, the outlet of preceding rotor and rear rotor inlet directly dock, certainly, in order to reduce forward cotyledon
Piece and rear rotor blade interfere with each other, and usually require to reserve certain distance between the two.
When compressor works, gas working medium enters preceding rotor from air inlet pipe, and preceding rotor blade does work gas working medium so that
Gas working medium pressure and speed increase, since preceding impeller of rotor is diagonal flow type impeller so that the air-flow of outlet is except with axial direction
Speed, but also there is higher tangential velocity, when the air-flow of preceding rotor outlet enters rear impeller of rotor, since rear rotor is with before
Rotor direction of rotation is opposite (to turning), and for rear rotor, preceding rotor outlet air-flow tangential velocity is tangential with rear rotor
Speed is superimposed, and easily reaches a higher relative velocity, when relative velocity exceedes velocity of sound, by appropriate blade design,
Can produce series of shock (generally including normal shock wave and oblique shock wave) in rear rotor blade side, gas working medium after shock wave,
Pressure can be flown up, and flow velocity can decline suddenly, and relative velocity is bigger, and shock wave is stronger, and supercharging slowing effect is more obvious.By
This is as it can be seen that the present invention is different from centrifugal compressor common at present and one of axial flow compressor is noteworthy characterized by：Preceding rotor goes out
It is main to carry out ram-compressed using very big relative velocity after the air-flow of mouth enters rear rotor, particular by gas channel
Multishock be pressurized.
Mainly it is pressurized afterwards in the gas channel of rotor by multishock, gas channel is typically to restrain extended pattern,
I.e. front half section is shunk, second half section expansion, is commonly referred to as throat at gas channel smallest cross-section area, in order to reach preferable punching press
The ratio of compression effectiveness, throat's cross-sectional area and entrance cross-sectional area needs and air velocity matching, its design may be referred to surpass
The related design method of interior punching type Supersonic Inlet and principle of tramsonic jet；The blade profile of rotor blade is to forming multishock afterwards
Have a direct impact, usual air-flow is larger by being lost after normal shock wave, smaller by being lost after oblique shock wave, therefore, in order to improve pressure
Contracting efficiency, will carry out vane foil well-designed, so as to the higher multishock of formation efficiency, be typically designed to both ends point, thin
Long shuttle-type, the head of this shuttle-type blade is sharp wedge shape, this and common compressor blade significant difference, the two of blade
The shape of side difference, i.e. blade both sides and Non-completety symmetry, this shuttle-type blade can also just form convergence and expand
Exhibition type gas channel, since air-flow relative velocity is very high, in order to avoid forming too strong normal shock wave, blade is typically straight, and
And usually require that it is consistent with airflow direction, airflow direction can by design speed downstream speed triangle is analyzed and
Determine.Certainly, according to the concrete form of the rotating speed match condition and rear rotor of preceding rotor and rear rotor, the rear end of blade can be with
There is camber.Because rear rotor, due to the blocking action of throat, can effectively prevent air-flow from outlet using convergence expanding runner
Flow back to Way in, thus surge margin can be improved, and then widen the working range of whole compressor.
As a further improvement on the present invention, the diagonal flow type Impeller Design of the preceding rotor is ultra-wide peg flow impeller.
This ultra-wide peg flow impeller, its axial dimension are more much greater than the axial dimension of existing single-stage axial impeller, its leaf
The existing aial flow impeller of piece chord ratio is also much longer, and the blade profile of blade is carried out after designing accordingly, can make blade in circumferential direction
More work(are done to air-flow so that preceding rotor outlet air-flow have higher tangential velocity so that be conducive in rear rotor into
Row punching press.The blade profile of ultra-wide string blade can be designed as needed, usually there is two kinds, and one kind is antecurvature ultra-wide string blade,
This blade first half is forward curved vane, and latter half is prismatic blade, another for antecurvature rear curved ultra-wide string blade, this leaf
Piece first half is forward curved vane, and latter half is backward leaning vane, and centre has one section of approximate prismatic blade to carry out transition.It should refer to
Go out, ultra-wide peg flow impeller is axial admission and axial outlet, but the center section of impeller can be according to the design needs, it is allowed to
There is one section of oblique flow in air-flow.Ultra-wide peg flow impeller has the advantages such as front face area is small, flow is big.
As a further improvement on the present invention, one section of blade axial dimension of the preceding rotor inlet lengthens, i.e. entrance
The height increase of place's blade becomes fan so that preceding rotor has two functions of fan and compressor rotor, this structure concurrently at the same time
It can be used for fanjet.
As a further improvement on the present invention, a static centre is set between preceding rotor outlet and rear rotor inlet
Inner cylinder, the interlude of middle inner cylinder and casing collectively form intermediate flow channel, rectification leaf can be arranged as required in intermediate flow channel
Piece, to reduce the vortex in air-flow, improves the orientation consistency of air-flow, after the exit flow of rotor more uniformly enters before making
Rotor, the compression efficiency of rotor after raising.It should be pointed out that the setting of the straightener(stator) blade in intermediate flow channel and runner does not change
The exit flow direction of rotor before (or change smaller), this point are clearly distinguishable from common curved in existing multi-stage centrifugal compressor
Road and return channel.
As a further improvement on the present invention, the blade design of rear rotor is sharp, the elongated shuttle-type prismatic blade in both ends, including
The linear leaf and short blade of interlaced arrangement in a circumferential direction, i.e. the both sides of linear leaf are short blades, and the both sides of short blade are long
Blade, similar to the deviated splitter vane interlaced arrangement mode of existing centrifugal compressor entrance.This linear leaf and short blade interlock cloth
The mode put can avoid detached shock wave occur near rear rotor inlet to a certain extent, by reasonable Arrangement leaf position,
Multishock after can preferably organizing in rotor gas channel, is conducive to further improve the charging efficiency of rear rotor.
As a further improvement on the present invention, if the absolute velocity of rear rotor outlet air-flow is very high, such as more than velocity of sound,
Diffuser can be arranged as required to behind rear rotor outlet, diffuser can be vaned diffuser either without leaf diffusion
Device, to carry out diffusion reduction of speed to the gas working medium of rear rotor outlet.
The present invention in practical applications, if the requirement to overall pressure tatio is very high, it may be considered that by two or more birotors
Connect to turning punching press compressor, tandem compound use can also be carried out with existing centrifugation, axial flow compressor, i.e., in forward
Either increase one or more levels axial-flow compressor or centrifugal-flow compressor, this combination behind rear rotor before son
It can usually realize wider range of pressure ratio scope and comprehensive performance.
The present invention creates condition using two rotors to switching to ram-compressed, and the rotating speed of two rotors and load can be with
It is designed as needed, substantially increases the flexibility of design；Due to introducing the mechanism of ram-compressed, easier can obtain
Obtain high compression ratio；Since using the structure to turning, by appropriate optimization design, cutting for outlet air flow velocity can be made in theory
It is zero to component, so as to reduce the particularly loss caused by the rotation of centrifugal compressor exit flow of current axial flow compressor,
Lift the efficiency of compressor.
Advantage that the present invention has that simple in structure, compression ratio is high, efficiency is higher etc., gas pressure that both can be independent as one
Contracting equipment uses, and can also be used as a component of other devices (such as aero-engine, gas turbine).
The beneficial effects are mainly as follows：
1st, compared with axial flow compressor, the present invention achieves that 5 grades of conventional axial flow compressor even using two stages of compression
The 10 attainable pressure ratios of multistage institute, structure complexity and number of components substantially reduce, and have obvious cost advantage.
2nd, compared with existing one-stage centrifugal compressor, the present invention can reach more than 20 pressure ratio, have wider range of pressure
Compare working range.
3rd, by reasonably designing, the tangential velocity of exit flow can be made significantly to subtract to turning as a result of two rotors
It is small, even zero, eddy flow loss can be reduced, effectively improves the efficiency of compressor.
4th, the present invention can be used as a single gas compressing equipment, have it is simple in structure, size is small, it is light-weight, pressure
Contracting than high, the manufacture advantage such as cost is low, be particularly suitable for higher pressure than application scenario.
5th, the present invention is highly suitable as the compressor part of aero-engine, if preceding rotor uses ultra-wide peg streaming
Impeller, rear rotor use aial flow impeller, then this structure have front face area is small, air mass flow is big, pressure ratio is higher, efficiency compared with
High advantage；If preceding rotor uses diagonal flow type impeller, rear rotor uses axial wheel, then this structure can generally achieve more
High pressure ratio, front face area is also not very too big, this is very helpful for improving engine efficiency.
Brief description of the drawings
Fig. 1 is the agent structure schematic diagram of the present invention.
Fig. 2 is the blade profile schematic diagram of the rear rotor blade of the present invention.
In figure：1st, radome fairing；2nd, air inlet pipe；3rd, preceding rotor blade；4th, preceding rotor disk；5th, casing；6th, axle sleeve；7th, rib
Plate；8th, middle inner cylinder；9th, straightener(stator) blade；10th, rear rotor disk；11st, rear rotor blade；12nd, axle journal；13rd, exhaust pipe；14th, after
Armature spindle；15th, preceding armature spindle；16th, prismatic blade.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings and by embodiment, but not as a limitation of the invention.
In the structure shown in Fig. 1, Fig. 2, a kind of birotor designed by the present invention to turning punching press compressor, by rotor and
Stator two parts form；Rotor, which includes the preceding rotor of order setting and rear rotor, each rotor, includes impeller and axis, preceding rotor
It is designed as diagonal flow type impeller, including radome fairing 1, preceding rotor blade 3, preceding rotor disk 4, preceding armature spindle 15.Rotor is axis stream afterwards
Formula impeller, including rear rotor disk 10, rear rotor blade 11, rear armature spindle 14, axle journal 12, rear rotor blade 11 are designed as both ends
Sharp, elongated shuttle-type prismatic blade 16.
Stator includes air inlet pipe 2, casing 5, straightener(stator) blade 9, middle inner cylinder 8, floor 7, axle sleeve 6, exhaust pipe 13 etc..It is middle
Inner cylinder 8 is arranged between preceding rotor and rear rotor, and middle inner cylinder 8 is connected by floor 7 with the axle sleeve 6 on central axes, axis
The main function of set 6 is to play support positioning action for one end of preceding armature spindle 15 and rear armature spindle 14, can be set inside axle sleeve 6
Mechanical bearing or fluid bearing are connected with preceding armature spindle 15 and rear armature spindle 14；Forward sub-stream nozzle passage and rear rotor air-flow lead to
Connected between road by intermediate flow channel, the interlude of middle inner cylinder 8 and casing 5 collectively forms intermediate flow channel, is set in intermediate flow channel
A certain number of straightener(stator) blades 9 are put, straightener(stator) blade 9 is connected with casing 5, middle inner cylinder 8 respectively, on the one hand can be to middle inner cylinder
8 play fixation, and can bear the stress loading that middle inner cylinder 8 passes over, and another aspect straightener(stator) blade 9 can be to preceding rotor
Exit flow plays rectified action, to reduce vortex, the uniformity and orientation consistency of increase air-flow, the exit flow of rotor before making
Even into rear rotor.In order to provide lubrication to the bearing inside axle sleeve 6, lubrication can be set inside straightener(stator) blade 9, floor 7
Oily passage.
When compressor works, gas working medium enters preceding rotor by air inlet pipe 2 and radome fairing 1, and preceding rotor blade 3 revolves
Turn, do work to gas working medium so that gas working medium speed and pressure increase, at preceding rotor outlet, gas working medium not only pressure
Rise, while also has higher axial velocity and tangential velocity, subsequently into intermediate flow channel, straightener(stator) blade 9 to gas working medium into
Row rectification, reduces the vortex in air-flow, and keeps preferable orientation consistency, it is rectified after air-flow enter rear rotor, rear turn
It is sub with preceding rotor direction of rotation on the contrary, rear rotor blade 11 has very high relative velocity with air-flow, when speed exceedes velocity of sound, rear turn
Blades side can form shock wave, and air-flow is after shock wave, and pressure is sharply increased, speed is greatly reduced, and air-flow leaves rear rotor
Enter exhaust pipe 13 afterwards., can be in the inlet of exhaust pipe 13 if the air velocity of 13 inlet of exhaust pipe is still higher
Diffuser is set, reduction of speed diffusion is carried out to air-flow again, being can be according to reality using vaned diffuser or vaneless diffuser
Need to make choice.
From the point of view of the course of work above, rear rotor can be regarded as a rotary diffusing device, the blade 11 of rear rotor
Need to overcome the drag due to shock wave of air-flow in rotary course, rotating speed is higher, and drag due to shock wave is bigger, then after rotor blade 11 to air-flow
The work(done and resistance and rotating speed are all directly proportional, because the pressure ratio of hereafter rotor can be sharply increased with the increase of its rotating speed.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of birotor is to turning punching press compressor, including rotor and stator, wherein, rotor is made of impeller and shaft, it is special
Sign is：The rotor includes preceding rotor and the rear rotor that tandem is set, and the impeller of preceding rotor is diagonal flow type impeller, rear to turn
The impeller of son is axial wheel, diagonal impeller or centrifugal impeller, and the outlet of preceding rotor and the rear rotor inlet to turning are directly right
Connect；The blade of rotor is sharp, the elongated shuttle-type in both ends afterwards, and the head of shuttle-type blade is sharp wedge shape；The air-flow of rotor leads to afterwards
Road is designed as convergence extended pattern structure, and there is a less throat of circulation area in centre；Stator includes casing, air inlet pipe, exhaust
Pipe and other affiliated facilities.
2. birotor according to claim 1 is to turning punching press compressor, it is characterised in that：The diagonal flow type leaf of the preceding rotor
Wheel is designed as ultra-wide peg flow impeller.
3. birotor according to claim 2 is to turning punching press compressor, it is characterised in that：The ultra-wide peg flow impeller
Blade be antecurvature ultra-wide string blade or it is antecurvature after curved ultra-wide string blade.
4. birotor according to claim 1 is to turning punching press compressor, it is characterised in that：The one of the preceding rotor inlet
Section blade axial dimension lengthens, i.e. the height increase of inlet blade becomes fan.
5. birotor according to claim 1 is to turning punching press compressor, it is characterised in that：Between preceding rotor and rear rotor
One static middle inner cylinder is set, intermediate flow channel is collectively formed by the interlude of middle inner cylinder and casing, is set in intermediate flow channel
Put straightener(stator) blade.
6. birotor according to claim 1 is to turning punching press compressor, it is characterised in that：Afterwards the blade design of rotor be
The linear leaf and short blade of interlaced arrangement on circumferencial direction, i.e. the both sides of linear leaf are short blades, and the both sides of short blade are to come into leaves
Piece.
7. birotor according to claim 1 is to turning punching press compressor, it is characterised in that：Set behind rear rotor outlet
Put diffuser.
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| CN201711192046.8A CN107989804A (en) | 2017-11-24 | 2017-11-24 | Birotor is to turning punching press compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711192046.8A CN107989804A (en) | 2017-11-24 | 2017-11-24 | Birotor is to turning punching press compressor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281760A (en) * | 2018-11-30 | 2019-01-29 | 中国航发湖南动力机械研究所 | Gas-turbine unit |
| CN109695580A (en) * | 2018-11-27 | 2019-04-30 | 中国科学院工程热物理研究所 | A kind of coaxial-type centrifugation-oblique flow counter-rotating compressor |
| CN111734685A (en) * | 2020-07-07 | 2020-10-02 | 江西省子轩科技有限公司 | Ventilation device |
| CN112449669A (en) * | 2019-06-28 | 2021-03-05 | 开利公司 | Mixed flow compressor with counter-rotating diffuser |
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| US2839239A (en) * | 1954-06-02 | 1958-06-17 | Edward A Stalker | Supersonic axial flow compressors |
| US2991929A (en) * | 1955-05-12 | 1961-07-11 | Stalker Corp | Supersonic compressors |
| GB816811A (en) * | 1956-06-11 | 1959-07-22 | Snecma | Improvements in supersonic axial-flow compressors |
| CN106382258A (en) * | 2016-12-06 | 2017-02-08 | 深圳福世达动力科技有限公司 | Centrifugal contra-rotating ram compressor |
| CN106988882A (en) * | 2017-04-13 | 2017-07-28 | 深圳福世达动力科技有限公司 | Twin-stage is to turning gas turbine |
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