CN108775260A - Compact little volume flow high pressure ratio mixed-flow industrial turbine - Google Patents
Compact little volume flow high pressure ratio mixed-flow industrial turbine Download PDFInfo
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- CN108775260A CN108775260A CN201810946396.7A CN201810946396A CN108775260A CN 108775260 A CN108775260 A CN 108775260A CN 201810946396 A CN201810946396 A CN 201810946396A CN 108775260 A CN108775260 A CN 108775260A
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- Prior art keywords
- turbine
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- axial
- main body
- movable vane
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
- F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
- F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/12—Combinations with mechanical gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention provides a kind of compact little volume flow high pressure ratio mixed-flow industrial turbines, it is related to the technical field of industrial turbine, including combined regulating valve and turbine main body, the combined regulating valve is connect with the turbine main body, setting and the first import on the combined regulating valve.The working medium of compact little volume flow high pressure ratio mixed-flow industrial turbine provided by the invention is entered from the first import in combined regulating valve, it is flowed into air chamber, when working medium enters in turbine main body, working medium is oriented to surrounding by stream guidance sealing cover, it is set to flow to the radial stator blade on runoff partition board, it is preferably acted in radial movable vane piece by radial stator blade working medium, working medium continues towards the axial stator blade on axis stream partition board, it is preferably acted in axial movable vane piece by axial stator blade working medium, radial movable vane piece and axial movable vane piece make main shaft rotate, to realize the output of mechanical energy, meets the needs of little volume flow high pressure ratio mixed-flow industrial turbine.
Description
Technical field
The present invention relates to industrial turbine technical fields, more particularly, to a kind of compact little volume flow high pressure ratio mixed-flow
Industrial turbine.
Background technology
Turbine is the machine that the energy that will be accumulated in fluid media (medium) is mutually converted with mechanical energy, also known as turbine or turbine
Machine.
The operating condition of turbine and working medium used difference, so its structural shape is varied, but basic functional principle
It is similar.The most important component of turbine is a rotating element, i.e. rotor or impeller, it is mounted on turbine spindle, has edge
The blade of even circumferential arrangement.Energy possessed by fluid, by being converted into kinetic energy when jet pipe, flows in flowing when flowing through impeller
Body impacts blade, wheel rotation is pushed, to drive turbine spindle to rotate.
Turbine spindle directly or through transmission mechanism drives other machineries, exports mechanical work.The working medium of turbomachinery can be gas
Body can also be liquid, Ru Shui, oil or other liquid such as steam, combustion gas, air and other gases or mixed gas.
It is known as the hydraulic turbine by the turbine of working medium of water；It is known as gas-turbine by the turbine of working medium of steam；Using combustion gas as working medium
Turbine be known as combustion gas turbine.
Due to the development in energy conservation and environmental protection field, the industrial turbine of little volume flow has prodigious demand, for small volume flow
The compressed gas of high pressure ratio is measured, generally uses axial turbine, centrifugal turbine and centrifugal+axial-flow type mixed currently on the market
Turbine is flowed, but respectively there are advantage and disadvantage.
The field that centrifugal turbine is suitble to little volume flow pressure ratio little, the working medium for finishing work(expands rapidly, by structure
The control of size and cost, turbine is arranged to single-stage or series is few；
Axial turbine is suitable for big volume flow, little volume flow high pressure ratio is very restricted, unit is thin
It is long, poor rigidity.
The mixed flow turbine of centrifugal+axial-flow type meets the industrial turbine of little volume flow high pressure ratio to a certain extent
The market demand.But existing centrifugal stage blade profile and axis stream grade blade profile, increase design difficulty and manufacturing cost on runner.
Invention content
The purpose of the present invention is to provide compact little volume flow high pressure ratio mixed-flow industrial turbines, to solve small volume
The technical issues of design of flow high pressure ratio industrial turbine, manufacture, cost control.
A kind of compact little volume flow high pressure ratio mixed-flow industrial turbine provided by the invention, including combined regulating valve and thoroughly
Flat main body, the combined regulating valve are connect with the turbine main body, setting and the first import on the combined regulating valve, described
It is provided with first outlet in flat main body；
Rotor is provided in the turbine main body, the rotor includes at least one impeller and main shaft, the impeller position
In in the turbine main body, described main shaft one end is connect with the impeller, and the other end stretches out outside the turbine main body；
In the setting in the radial direction at least one week of the impeller close to the combined regulating valve radial direction movable vane piece,
The impeller is axially provided at least one week axial movable vane piece；
Be provided in the turbine main body runoff partition board coordinated with the radial movable vane piece of impeller and with the axial direction of impeller
The axis stream partition board of movable vane piece cooperation；
The stream guidance sealing cover for working medium to be oriented to surrounding, and the stream guidance sealing cover are provided in the turbine main body
It is arranged on the runoff partition board.
Further, the impeller is multiple, and multiple impellers include primary runner and multiple secondary impellers, and the radial direction is dynamic
Blade is arranged on the primary runner, and seal boss is provided in the secondary impeller far from the primary runner；
Or
The impeller is one, and the impeller is primary runner, and the radial direction movable vane piece is arranged on the primary runner,
The primary runner other side is provided with seal boss；
And it is both provided with balance hole on the impeller.
Further, the radial stator blade with radial movable vane piece cooperation is provided on the runoff partition board；
The axial stator blade with axial movable vane piece cooperation is provided on the axis stream partition board.
Further, the radial stator blade and the radial movable vane piece are radial grade blade profile；It is described axial direction movable vane piece and
The axial direction stator blade is axial stage blade profile；Radial grade blade profile is consistent with the blade profile of axial stage blade profile, and radial grade is that axial-flow type is saturating
Flat earlier stages rotate.
Further, further include gearbox, described main shaft one end is located in the gearbox；
Balance weight and first gear are provided on main shaft in the gearbox, and on the first gear and output shaft
Second gear engagement；
The spring bearing for being used to support main shaft is provided on institute's main shaft, the balance weight makes at left and right sides of spring bearing
Balance.
Further, the diameter for preventing working medium from being flowed between rear gland steam pocket and chamber is provided on the runoff partition board
Flow packing.
Further, the radial gland that setting coordinates with seal boss in the turbine main body, and radial gland is used for
Prevent working medium from being flowed between front steam seal room and exhaust hood.
Further, it is provided with axial seal on the main shaft；The axial seal is for preventing working medium from the main shaft
It is leaked with turbine main body junction.
Further, guide ledges are provided in the chamber in the turbine main body, the guide ledges are used for working medium
Guiding axis stream partition board.
Further, further include pedestal, the combined regulating valve, turbine main body and gearbox are successively set on the pedestal
On.
The working medium of compact little volume flow high pressure ratio mixed-flow industrial turbine provided by the invention enters from the first import
It into combined regulating valve, is flowed into air chamber, when working medium enters in turbine main body, working medium is oriented to by stream guidance sealing cover
Surrounding makes it flow to the radial stator blade on runoff partition board, and radial movable vane piece is preferably acted on by radial stator blade working medium
On, working medium continues towards the axial stator blade on axis stream partition board, and axial movable vane is preferably acted on by axial stator blade working medium
On piece, radial movable vane piece and axial movable vane piece make main shaft rotate, and to realize the output of mechanical energy, meet the big pressure of little volume flow
Than the demand of mixed-flow industrial turbine.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural representation of compact little volume flow high pressure ratio mixed-flow industrial turbine provided in an embodiment of the present invention
Figure；
Fig. 2 is the partial enlarged view of compact little volume flow high pressure ratio mixed-flow industrial turbine shown in Fig. 1；
Fig. 3 is the structural schematic diagram of the rotor of compact little volume flow high pressure ratio mixed-flow industrial turbine shown in Fig. 1；
Fig. 4 is the structural schematic diagram of the impeller of rotor shown in Fig. 3.
Icon：100- combined regulating valves；200- turbine main bodys；300- gearboxes；The first imports of 400-；500- first
Outlet；600- air chambers；700- front steam seals room；Gland steam pocket after 800-；900- main shafts；110- rotors；120- support shafts
It holds；130- balance weights；140- output shafts；150- pedestals；160- chambers；170- exhaust hoods；180- stream guidance sealing covers；
190- guide ledges；210- runoff partition boards；220- radial direction stator blades；230- runoff packings；240- axis stream partition boards；250-
Axial stator blade；260- radial glands；270- radial direction movable vane pieces；280- axial direction movable vane pieces；290- impellers；291- is primary
Impeller；292- secondary impellers；310- balance holes；320- seal bosses.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As Figure 1-Figure 4, a kind of compact little volume flow high pressure ratio mixed-flow industrial turbine provided by the invention,
Including combined regulating valve 100 and turbine main body 200, the combined regulating valve 100 is connect with the turbine main body 200, in the joint
Setting and the first import 400, first outlet 500 is provided in the turbine main body 200 on steam valve 100；
Rotor 110 is provided in the turbine main body 200, the rotor 110 includes at least one impeller 290 and main shaft
900, the impeller 290 is located in the turbine main body 200, and 900 one end of the main shaft is connect with the impeller 290, the other end
It stretches out outside the turbine main body 200；
It is dynamic in at least one week radial direction of setting in the radial direction of the impeller 290 close to the combined regulating valve 100
Blade 270 is axially provided at least one week axial movable vane piece 280 in the impeller 290；
Be provided in the turbine main body 200 the runoff partition board 210 coordinated with the radial movable vane piece 270 of impeller 290 and
The axis stream partition board 240 coordinated with the axial movable vane piece 280 of impeller 290；
The stream guidance sealing cover 180 for working medium to be oriented to surrounding, and the water conservancy diversion are provided in the turbine main body 200
Seal closure 180 is arranged on the runoff partition board 210.
In some embodiments, air chamber 600, chamber 160, exhaust hood 170, front steam seal room are formd in the industrial turbine
700 and rear gland steam pocket 800；The working medium that the industrial turbine utilizes can be the compressibility gas such as steam or the carbon dioxide of high pressure
Body.
Working medium enters from the first import 400 of combined regulating valve 100 in air chamber 600, air chamber 600 and turbine main body 200
Between the opening that is connected to just towards the center of stream guidance sealing cover 180, working medium stream guidance sealing cover 180 effect to flow direction by diameter
Partition board 210 is flowed, is flowed into chamber 160 by runoff partition board 210, working medium turns to and flows to axis stream partition board 240 in chamber 160,
It is finally flowed into exhaust hood 170, is discharged from the first outlet 500 of exhaust hood.
In the process, working medium makes radial movable vane piece 270 and axial movable vane piece 280 that main shaft 900 be driven to turn to dynamic, by kinetic energy
It is converted into the mechanical energy of axis rotation, rotor 110 is made to rotate；The industrial turbine can be used in drawing generator, compressor, water pump
Deng.
On above-described embodiment basis, further, the impeller 290 is multiple, and multiple impellers 290 include primary
Impeller 291 and multiple secondary impellers 292, the radial direction movable vane piece 270 is arranged on the primary runner 291, far from described
It is provided with seal boss 320 in the secondary impeller 292 of primary runner 291；
Or
The impeller 290 is one, and the impeller 290 is primary runner 291, and the radial direction movable vane piece 270 is arranged in institute
It states on primary runner 291,291 other side of primary runner is provided with seal boss 320；
And it is both provided with balance hole 310 on the impeller 290.
In some embodiments, a primary runner 291 can be only set on main shaft 900, can also be set again according to demand
Set multiple secondary impellers 292.
When there are one when primary runner 291, radial movable vane pieces of more weeks only are provided in the radial direction of primary runner 291
270；One week radial movable vane piece 270 of setting is level-one, and three-level radial direction movable vane piece can at most be arranged generally on primary runner 291
270；The setting of radial movable vane piece 270 in primary runner 291 towards 180 side of stream guidance sealing cover,
291 other side of primary runner is provided with seal boss 320.
In some embodiments, there are one primary runner 291 and at least one secondary impeller 292, roots for setting on main shaft 900
According to use demand, multiple secondary impellers 292 are set gradually on main shaft 900.Axial movable vane is both provided in secondary impeller 292
Piece 280 is provided with axis stream partition board corresponding with 290 numbers of impeller 240 in turbine main body 200；Working medium is by axial stator blade
250 guiding, and the pressure and temperature of working medium can be made to reduce, increase the flow velocity of working medium, working medium is made preferably to act on axial direction
In movable vane piece 280.
On above-described embodiment basis, further, it is provided on the runoff partition board 210 and radial movable vane piece
The radial stator blade 220 of 270 cooperations；
The axial stator blade 250 coordinated with axial movable vane piece 280 is provided on the axis stream partition board 240.
On above-described embodiment basis, further, the radial direction stator blade and the radial movable vane piece 270 are diameter
To grade blade profile；The axial direction movable vane piece 280 and the axial stator blade 250 are axial stage blade profile；Radial grade blade profile and axial stage
The blade profile of blade profile is consistent, and radial grade is that the earlier stages of axial turbine rotate by a certain angle.
In some embodiments, it is provided with radial movable vane piece 270 on runoff partition board 210, is arranged on axis stream partition board 240
There is axial movable vane piece 280, the radial stator blade 220 on runoff partition board 210 is flowed in working medium, by leading for radial stator blade 220
It to after acceleration, acts in radial movable vane piece 270, working medium turns in chamber 160 and flows to axis stream partition board 240；By axial direction
It after the guiding of stator blade 250 and acceleration, acts in axial movable vane piece 280, when multiple secondary impellers 292, working medium is passed through successively
After axial stator blade 250, axial movable vane piece 280 ... axial stator blade 250, axial movable vane piece 280, working medium enters exhaust hood
170, it is discharged from first outlet 500.
Radial grade blade profile is consistent with the blade profile of axial stage blade profile, and radial grade is that the earlier stages of axial turbine rotate certain angle
It spends.
Radial movable vane piece is simply interpreted as to can be understood as axial movable vane piece being rotated by 90 °.
Further include gearbox 300, institute further further as shown in figure 3, based on above-described embodiment basis
900 one end of main shaft is stated to be located in the gearbox 300；
Balance weight 130 and first gear, and the first gear are provided on main shaft 900 in the gearbox 300
It is engaged with the second gear on output shaft 140；
The spring bearing 120 for being used to support main shaft 900 is provided on institute's main shaft 900, the balance weight 130 makes support shaft
Hold the balance of 120 left and right sides.
In some embodiments, mechanical energy is transmitted in gearbox 300 by main shaft 900, in gearbox 300, main shaft 900
Upper one and only one spring bearing 120 of setting, rotor 110 is using the cantilever beam structure of single fulcrum support, spring bearing 120
Support main shaft 900,900 one end of main shaft is provided with impeller 290, and the other end is arranged first gear, first gear on output shaft 140
Second gear engages, to be outputed power by output shaft 140.
First gear with can be engaged with change gear group, the power of change gear group also walks output by exporting.
The balance weight 130 of the balance for adjusting 120 both sides of spring bearing is provided on main shaft 900, it is flat by adjusting
The size of weighing apparatus block 130 makes 120 liang of lateral balances of spring bearing；And balance weight 130 is generally pylindrical.
On above-described embodiment basis, further, it is provided on the runoff partition board 210 for preventing working medium from existing
The runoff packing 230 flowed between gland steam pocket 800 and chamber 160 afterwards.
In some embodiments, in air chamber 600, chamber 160, exhaust hood 170, front steam seal room 700 and rear gland steam pocket 800
Pressure size relationship be；Gland steam pocket 800 after 600 > chambers of air chamber, 160 > exhaust hoods, 170 > front steam seals room 700=.
Working fluid flow after in order to prevent between gland steam pocket 800 and chamber 160, runoff is provided on runoff partition board 210
Packing 230.Runoff packing 230 is generally fixed on the ladder of runoff partition board 210.
On above-described embodiment basis, further, setting and seal boss 320 in the turbine main body 200
The radial gland 260 of cooperation, and radial gland 260 is for preventing working medium from being flowed between front steam seal room 700 and exhaust hood 170.
In some embodiments, seal boss 320 is arranged on impeller 290 with radial gland 260 to coordinate, prevents front steam seal room
The sealing surface of flowing between 700 and exhaust hood 170, radial gland 260 can be contacted with 320 upper surface of seal boss or diameter
It is contacted to the sealing surface of packing 260 with the outer surface of seal boss 320, to realize packing.
On above-described embodiment basis, further, axial seal is provided on the main shaft 900；The axial direction
Sealing is for preventing working medium from being leaked from the main shaft 900 and 200 junction of turbine main body.
Main shaft 900 is stretched out from turbine main body 200, in order to reduce seam of the working medium between main shaft 900 and turbine main body 200
Gap leaks out, and is arranged on main shaft 900 and axial seal, axial seal can effectively reduce working medium and leak from there,
On above-described embodiment basis, further, it is provided with and leads in the chamber 160 in the turbine main body 200
To boss 190, the guide ledges 190 are used for working medium guiding axis stream partition board 240.
In some embodiments, working medium is flowed into chamber B, under the action of guide ledges 190, by working medium guiding axis stream
Partition board 240.
Further include pedestal 150, the combined regulating valve 100, turbine master further on above-described embodiment basis
Body 200 and gearbox 300 are successively set on the pedestal 150.
The working medium of compact little volume flow high pressure ratio mixed-flow industrial turbine provided by the invention from the first import 400 into
Enter into combined regulating valve 100, is flowed into air chamber 600, when working medium enters in turbine main body 200, water conservancy diversion sealing
Working medium is oriented to surrounding by cover 180, so that it is flowed to runoff partition board 210, radial direction is preferably acted on by 220 working medium of radial stator blade
In movable vane piece 270, working medium continues towards axis stream partition board 240, and axial movable vane is preferably acted on by 250 working medium of axial stator blade
On piece 280, radial movable vane piece 270 and axial movable vane piece 280 make main shaft 900 rotate, and to realize the output of mechanical energy, meet small
The demand of volume flow high pressure ratio mixed-flow industrial turbine.
Compact little volume flow high pressure ratio mixed-flow industrial turbine can utilize steam or carbon dioxide of high pressure etc.
Compressibility gas realizes the utilization of the compressed gas of little volume flow high pressure ratio, to meet the industrial turbine of little volume flow
Demand；Solve the design, manufacture, cost control problem of present little volume flow high pressure ratio industrial turbine；And in rotor 110
The high-pressure side in left side realizes that zero gas leakage, combined regulating valve 100 are connect with the end cap of turbine main body 200 with extraneous, end cap and turbine master
Body 200 passes through method downlink connection；Runoff partition board 210 and turbine main body 200 by flanged joint, stream guidance sealing cover 180 and runoff every
Plate 210 is by flanged joint, to which air chamber 600 and the external world is completely separated.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of compact little volume flow high pressure ratio mixed-flow industrial turbine, which is characterized in that including combined regulating valve and turbine
Main body, the combined regulating valve are connect with the turbine main body, setting and the first import on the combined regulating valve, in the turbine
First outlet is provided in main body；
Rotor is provided in the turbine main body, the rotor includes at least one impeller and main shaft, and the impeller is located at institute
It states in turbine main body, described main shaft one end is connect with the impeller, and the other end stretches out outside the turbine main body；
In at least one week radial movable vane piece of setting in the radial direction of the impeller close to the combined regulating valve, described
Impeller is axially provided at least one week axial movable vane piece；
Be provided in the turbine main body runoff partition board coordinated with the radial movable vane piece of impeller and with the axial movable vane of impeller
The axis stream partition board of piece cooperation；
The stream guidance sealing cover for working medium to be oriented to surrounding is provided in the turbine main body, and the stream guidance sealing cover is arranged
On the runoff partition board.
2. compact little volume flow high pressure ratio mixed-flow industrial turbine according to claim 1, which is characterized in that
The impeller is multiple, and multiple impellers include primary runner and multiple secondary impellers, and the radial direction movable vane piece is arranged in institute
It states on primary runner, seal boss is provided in the secondary impeller far from the primary runner；
Or
The impeller is one, and the impeller is primary runner, and the radial direction movable vane piece is arranged on the primary runner, first
The grade impeller other side is provided with seal boss；
And it is both provided with balance hole on the impeller.
3. compact little volume flow high pressure ratio mixed-flow industrial turbine according to claim 1, which is characterized in that described
The radial stator blade with radial movable vane piece cooperation is provided on runoff partition board；
The axial stator blade with axial movable vane piece cooperation is provided on the axis stream partition board.
4. compact little volume flow high pressure ratio mixed-flow industrial turbine according to claim 3, which is characterized in that described
Radial stator blade and the radial movable vane piece are radial grade blade profile；The axial direction movable vane piece and the axial stator blade are axial stage
Blade profile；Radial grade blade profile is consistent with the blade profile of axial stage blade profile, and radial grade is that the earlier stages of axial turbine rotate.
5. compact little volume flow high pressure ratio mixed-flow industrial turbine according to claim 1, which is characterized in that also wrap
Gearbox is included, described main shaft one end is located in the gearbox；
It is provided with balance weight and first gear on main shaft in the gearbox, and the first gear and the on output shaft
Two gears engage；
The spring bearing for being used to support main shaft is provided on institute's main shaft, the balance weight makes flat at left and right sides of spring bearing
Weighing apparatus.
6. compact little volume flow high pressure ratio mixed-flow industrial turbine according to claim 1, which is characterized in that described
The runoff packing for preventing working medium from being flowed between rear gland steam pocket and chamber is provided on runoff partition board.
7. compact little volume flow high pressure ratio mixed-flow industrial turbine according to claim 2, which is characterized in that in institute
The radial gland of setting and seal boss cooperation in turbine main body is stated, and radial gland is for preventing working medium in front steam seal room and row
It is flowed between steam chest.
8. compact little volume flow high pressure ratio mixed-flow industrial turbine according to claim 1, which is characterized in that described
Axial seal is provided on main shaft；The axial seal is for preventing working medium from being let out from the main shaft and turbine main body junction
Leakage.
9. according to claim 1-8 any one of them compact little volume flow high pressure ratio mixed-flow industrial turbines, feature
It is, guide ledges are provided in the chamber in the turbine main body, and the guide ledges are used for working medium guiding axis stream partition board.
10. compact little volume flow high pressure ratio mixed-flow industrial turbine according to claim 4, which is characterized in that also
Including pedestal, the combined regulating valve, turbine main body and gearbox are set gradually on the base.
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| CN201810946396.7A CN108775260A (en) | 2018-08-20 | 2018-08-20 | Compact little volume flow high pressure ratio mixed-flow industrial turbine |
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| CN201810946396.7A CN108775260A (en) | 2018-08-20 | 2018-08-20 | Compact little volume flow high pressure ratio mixed-flow industrial turbine |
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| CN105626266A (en) * | 2016-01-12 | 2016-06-01 | 中国科学院工程热物理研究所 | Anti-surge air escape energy recycling system of gas turbine |
| CN107131004A (en) * | 2017-07-11 | 2017-09-05 | 江苏金通灵流体机械科技股份有限公司 | A kind of axle flow path stream combined flow turbine |
| CN208669358U (en) * | 2018-08-20 | 2019-03-29 | 中国长江动力集团有限公司 | Compact little volume flow high pressure ratio mixed-flow industrial turbine |
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2018
- 2018-08-20 CN CN201810946396.7A patent/CN108775260A/en active Pending
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| GB190622490A (en) * | 1906-10-11 | 1907-10-11 | Edmund Scott Gustave Rees | Improvements in Rotary Condensers and Condensing Steam Turbines. |
| GB614160A (en) * | 1945-03-05 | 1948-12-10 | Power Jets Res & Dev Ltd | Improvements relating to combustion turbine power plant |
| US20140363268A1 (en) * | 2012-01-20 | 2014-12-11 | Turboden S.R.L. | Method and turbine for expanding an organic operating fluid in a rankine cycle |
| CN105626266A (en) * | 2016-01-12 | 2016-06-01 | 中国科学院工程热物理研究所 | Anti-surge air escape energy recycling system of gas turbine |
| CN107131004A (en) * | 2017-07-11 | 2017-09-05 | 江苏金通灵流体机械科技股份有限公司 | A kind of axle flow path stream combined flow turbine |
| CN208669358U (en) * | 2018-08-20 | 2019-03-29 | 中国长江动力集团有限公司 | Compact little volume flow high pressure ratio mixed-flow industrial turbine |
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