CN110344891A - A kind of long-life closed cycle turbine electricity generation system rotor structure and technique - Google Patents
A kind of long-life closed cycle turbine electricity generation system rotor structure and technique Download PDFInfo
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- CN110344891A CN110344891A CN201910647986.4A CN201910647986A CN110344891A CN 110344891 A CN110344891 A CN 110344891A CN 201910647986 A CN201910647986 A CN 201910647986A CN 110344891 A CN110344891 A CN 110344891A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
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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
- F01D15/08—Adaptations for driving, or combinations with, pumps
-
- 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
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/005—Selecting particular materials
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/026—Shaft to shaft connections
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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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
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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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
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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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/04—Units comprising pumps and their driving means the pump being fluid-driven
- F04D25/045—Units comprising pumps and their driving means the pump being fluid-driven the pump wheel carrying the fluid driving means, e.g. turbine 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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially 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
- F04D29/26—Rotors specially for elastic fluids
-
- 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
- F04D29/266—Rotors specially for elastic fluids mounting compressor rotors on shafts
-
- 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
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The present invention relates to a kind of long-life closed cycle turbine electricity generation system rotor structure and techniques, including compressor impeller, elastic locking ring, axis radial direction composite shaft sleeve, generator terminal of calming the anger fixed hub, motor shaft, radial axle sleeve, turbine end fixed hub and turbine rotor.On the basis of completing parts and components of rotor processing, the assembly of turbine end sleeve assembly, generator terminal of calming the anger sleeve assembly and motor shaft is carried out first, secondly turbine rotor is carried out with the assembly of turbine end sleeve assembly and motor shaft, then carry out calming the anger generator terminal sleeve assembly with motor shaft assembly, compressor impeller is finally completed with the assembly of calm the anger generator terminal fixed hub, turbine rotor and elastic locking ring, forms complete rotor structure.The rotor has the characteristics that moment of friction is imitated between bonding strength height, rotor and bearing between compact-sized, components, helps to improve the structural reliability and working life of closed cycle radial-flow turbine electricity generation system.
Description
Technical field
The invention belongs to closed cycle radial turbine power generation system structure design fields, and in particular to a kind of long-life closes
Formula circulatory turbine electricity generation system rotor structure and technique.
Background technique
Closed cycle turbine electricity generation system, can be by certain gas work as a kind of new and effective heating power reformulations
Matter realizes conversion of the thermal energy to electric energy by absorbing the thermal processions such as heat, expansion work, heat release and compression under enclosed environment.
Typical closed cycle radial-flow turbine electricity generation system is in structure mainly by radial-flow turbine, diameter flow air compressor, generator, regenerator
Equal components composition.
Rotor is the component of core the most in closed cycle radial-flow turbine electricity generation system, mainly includes that turbine and compressor turn
Son and generator amature two parts.The design and manufacturing quality of rotor structure directly affect stable operation, the thermoelectricity of system
Transfer efficiency, reliability and service life etc..During operation, rotor is in high speed rotation to closed cycle radial-flow turbine electricity generation system
State, revolving speed is up to tens of thousands of revs/min, and even up to ten tens of thousands of revs/min or more, event once occurs some for rotor structure
Barrier, not only resulting in closed circulation system can not work normally, but also can cause the structure of closed cycle turbine electricity generation system
Damage.Therefore, the structure for rationally designing rotor is most important for the safe and reliable operation for ensureing shrouded turbine electricity generation system.
Existing closed cycle radial turbine electricity generation system rotor mainly include turbine rotor, main shaft, compressor impeller,
The components such as motor shaft, shaft coupling, and connected by shaft coupling by mechanical interference and realize that turbine and compressor impeller rotor are same
Connection between rotor, specifically: main shaft carries on the back boss and gas compressor blade with turbine rotor wheel respectively by its both ends inner hole
Wheel wheel back boss interference is joined together to form power shaft, then by the both ends inner hole of shaft coupling respectively with motor shaft one end
Elastic conjunction between compressor impeller input end wheel hub, power shaft and motor shaft are linked together, and are formed complete
Rotor.Rotor, which forms, uses interference connection type between components, although can guarantee to a certain extent between each component
Concentricity, but since interference bonding strength depends on the fitted position and its tolerance between each components, to component assembly portion
The machining accuracy of position proposes very high request；In addition, the practical magnitude of interference of rotor connecting portion during the work time can reduce, even
Connecing strength and stiffness cannot be effectively ensured, and be also easy to produce and loosen between parts and components of rotor, seriously affect closed cycle turbine power generation
The functional reliability of system.
Long-life and high reliability are the common demands of closed cycle radial-flow turbine electricity generation system, for closed cycle runoff
The characteristics of turbine electricity generation system rotor and bearing and requirement rationally design rotor structure, improve the stabilization of rotor operating
Property, the abrasion in shutdown process between rotor and bearing is reduced, is to guarantee closed cycle turbine electricity generation system high reliability and length
The key in service life.
Summary of the invention
The present invention is directed to closed cycle radial-flow turbine electricity generation system long-life and high reliability demand, proposes a kind of long-life
Closed cycle turbine electricity generation system rotor structure and moulding process.According to the turbine of closed cycle turbine electricity generation system, compressor
With the parameters of structural dimension of motor, pass through rational design compressor impeller, elastic locking ring, axis radial direction composite shaft sleeve, compressor
Hold the structural parameters and technological parameter of fixed hub, motor shaft, radial axle sleeve, turbine end fixed hub and turbine rotor.?
Complete rotor structure composition parts machining on the basis of, first progress turbine end sleeve assembly, generator terminal of calming the anger sleeve assembly and
Secondly the assembly of motor shaft carries out turbine rotor with the assembly of turbine end sleeve assembly and motor shaft, then carries out generator terminal of calming the anger
Sleeve assembly finally completes compressor impeller with calm the anger generator terminal fixed hub, turbine rotor and snap lock with the assembly of motor shaft
The assembly of tight ring.The rotor realizes turbine and compressor shaft with the integral structure of motor shaft, can significantly improve enclosed
The operation stability for recycling radial-flow turbine electricity generation system, prevents rotor structure from getting loose during the work time, improves rotor
Functional reliability, while turbine electricity generation system can be also reduced in the abrasion loss of shutdown process middle (center) bearing and rotor contact site, it mentions
The working life of high system.
Technical solution of the present invention:
A kind of long-life closed cycle turbine electricity generation system rotor structure, including compressor impeller, elastic locking ring, the diameter of axle
To composite shaft sleeve, generator terminal of calming the anger fixed hub, motor shaft, radial axle sleeve, turbine end fixed hub and turbine rotor.It is described to calm the anger
There is the external cylindrical surface mutually assembled with generator terminal fixed hub of calming the anger on machine impeller, there is blind hole at the center of the compressor impeller, described
There are unthreaded hole, locking annular groove and internal screw thread, the internal screw thread rotation direction and turbine of the compressor impeller on compressor impeller central blind hole
Rotation direction when electricity generation system working rotor is identical, and the inlet end of the compressor impeller has the nut tight for mounting clip；
The elastic locking ring is placed in the locking annular groove of turbine rotor and compressor impeller；Have on the axis radial direction composite shaft sleeve coaxial
To the annular end face of air floating bearing fit, there is the outer of same radial gas floating bearing cooperation on the axis radial direction composite shaft sleeve
Cylindrical surface, the axis radial direction composite shaft sleeve, which uses, has self-lubricating, wear-resisting and resistant to high temperature ceramic material, the axis radial compound
Axle sleeve is assemblied in by inner hole calms the anger on generator terminal fixed hub；Described generator terminal fixed hub one end of calming the anger has and compressor impeller phase
There are the external cylindrical surface mutually assembled with composite shaft sleeve, the pressure in the inner cylinder face of assembly, described one end for calming the anger generator terminal fixed hub
The other end of mechanism of qi end fixed hub has the external screw thread mutually assembled with motor shaft internal screw thread；The motor shaft is by magnetic core and motor shaft
Set composition, the magnetic core of the motor shaft are located at the inside of motor shaft sleeve, and there is and calms the anger generator terminal fixing axle in one end of the motor shaft
The internal screw thread mutually assembled is covered, the other end of the motor shaft has the internal screw thread mutually assembled with turbine rotor external screw thread；The radial direction
Axle sleeve is cirque structure, and the external cylindrical surface of the radial direction axle sleeve is matched with radial floating bearing, and the radial direction axle sleeve uses
With self-lubricating, wear-resisting and high temperature ceramic material, the radial direction axle sleeve is assemblied on turbine end fixed hub by inner hole；Institute
Stating has the internal screw thread mutually assembled with the external screw thread of turbine rotor on turbine end fixed hub, the turbine end fixing axle is cased with same diameter
The external cylindrical surface mutually assembled to axle sleeve；The turbine rotor is welded by turbine wheel and shaft, is had on the turbine rotor
With the external screw thread that turbine end fixed hub internal screw thread is mutually assembled with motor shaft internal screw thread, there is same gas compressor blade on the turbine rotor
The external screw thread that internal screw thread mutually assembles is taken turns, there is the locking annular groove with the assembly of elastic locking ring on the turbine rotor, the turbine turns
There is the nut tight for mounting clip in sub- one end.
A kind of long-life closed cycle turbine electricity generation system rotor moulding process, comprising the following steps:
A, it determines the parameters of structural dimension of long-life closed cycle turbine electricity generation system rotor: being sent out according to closed cycle turbine
The dimensional parameters of the turbine of electric system, compressor and motor determine that turbine electricity generation system rotor forms components i.e. gas compressor blade
Wheel, elastic locking ring, axis radial direction composite shaft sleeve, generator terminal of calming the anger fixed hub, motor shaft, turbine end fixed hub, radial axle sleeve
With the structure size of turbine rotor；
B, it determines the Screw assembly screw-down torque between rotor composition components: being turned according to closed cycle turbine electricity generation system
Revolving speed, torque delivery request and the kinetic parameter of son determine between closed cycle turbine electricity generation system rotor composition components
Screw assembly screw-down torque；
C, it carries out the manufacture of long-life closed cycle turbine electricity generation system rotor composition components: being determined according to step a
Turbine electricity generation system rotor forms the parameters of structural dimension of components, processes compressor impeller, elastic locking ring, axis radial compound
Axle sleeve, generator terminal of calming the anger fixed hub, motor shaft, turbine end fixed hub, radial axle sleeve and turbine rotor；
D, radial axle set the assembly of turbine end fixed hub and radial axle sleeve: is assembled to the outer circle in turbine end fixed hub
On cylinder, and guarantee that counterface is adjacent to, forms turbine end sleeve assembly；
E, the assembly of generator terminal of calming the anger fixing axle and axis radial direction composite shaft sleeve: axis radial direction composite shaft sleeve is assembled in generator terminal of calming the anger
On the external cylindrical surface of fixed hub, and guarantee that counterface is adjacent to, forms generator terminal sleeve assembly of calming the anger；
F, the motor shaft magnetic core and motor shaft of processing the assembly of motor shaft magnetic core and motor shaft axle sleeve: will be completed in step c
Axle sleeve is realized the elastic conjunction of motor shaft magnetic core and motor shaft axle sleeve, is made motor shaft magnetic core using heating motor shaft axle sleeve mode
One end is adjacent to axle sleeve inner face, forms complete motor shaft；
G, assembly of the turbine rotor with turbine end sleeve assembly and motor shaft: the assembly screw-down torque determined according to step b,
It is screwed by screw thread, successively assembles the step d turbine end sleeve assembly formed and step the f motor shaft formed in turbine rotor
On, it is adjacent to end face mutually；
H, assembly of generator terminal of the calming the anger sleeve assembly with motor shaft: the generator terminal sleeve assembly of calming the anger that step e is formed is across whirlpool
Rotor is taken turns, according to the assembly screw-down torque that step b is determined, is screwed by screw thread, the generator terminal that will calm the anger sleeve assembly is assembled in motor
On axis, makes to calm the anger the end face of generator terminal fixed hub and the magnetic core of motor shaft is adjacent to；
I, assembly of the compressor impeller with calm the anger generator terminal fixed hub, turbine rotor and elastic locking ring: first will be elastic
Retaining ring is mounted in the locking annular groove of turbine rotor, is assembled screw-down torque according to determined by step b, is passed through compressor impeller
Screw thread with turbine rotor screws assembly, by compressor impeller with calm the anger generator terminal fixed hub, turbine rotor and elastic locking ring
It is assembled together, forms complete rotor structure.
The beneficial effects of the present invention are:
A kind of long-life closed cycle turbine electricity generation system rotor structure proposed by the present invention and moulding process, using turbine
With compressor shaft with the coaxial configuration of motor shaft, the use of shaft coupling is avoided, the overall stiffness of rotor can be significantly improved,
Enhance the stability of turbine electricity generation system rotor operating；Axis radial direction composite shaft sleeve and radial axle sleeve are used with self-lubricating, wear-resisting
With ceramic material resistant to high temperature, closed cycle turbine electricity generation system air floating in starting and docking process can be effectively reduced
The abrasion loss of bearing and rotor contact site improves the service life of turbine electricity generation system；It, can using Screw assembly locking mechanism
It is got loose during the work time to prevent rotation stop minor structure, improves the functional reliability of rotor.
Detailed description of the invention
Fig. 1 is a kind of long-life closed cycle turbine electricity generation system rotor structure schematic diagram described in the embodiment of the present invention.
Fig. 2 is locking mechanism partial enlargement diagram described in the embodiment of the present invention.
Fig. 3 is compressor impeller structural schematic diagram described in the embodiment of the present invention.
Fig. 4 is axis radial direction composite shaft sleeve structural schematic diagram described in the embodiment of the present invention.
Fig. 5 is generator terminal fixed hub structural schematic diagram of calming the anger described in the embodiment of the present invention.
Fig. 6 is motor shaft structure schematic diagram described in the embodiment of the present invention.
Fig. 7 is turbine end fixed hub structural schematic diagram described in the embodiment of the present invention.
Fig. 8 is turbine rotor structural schematic diagram described in the embodiment of the present invention.
1 compressor impeller, 2 elastic locking ring, 3 axis radial direction composite shaft sleeve 4 is calmed the anger generator terminal fixed hub
7 turbine end fixed hub of the radial axle sleeve of 5 motor shaft 6,8 turbine rotor
9 compressor impeller external cylindrical surface, 10 compressor impeller locks 11 compressor impeller internal screw thread of annular groove
12 compressor impeller unthreaded hole, 13 compressor impeller clamping nut
14 axis radial direction composite shaft sleeve annular end face, 15 axis radial direction composite shaft sleeve inner hole
16 axis radial direction composite shaft sleeve external cylindrical surfaces 17 are calmed the anger generator terminal fixed hub inner cylinder face
18 generator terminal fixed hub external cylindrical surfaces 19 of calming the anger are calmed the anger generator terminal fixed hub external screw thread
20 motor shaft magnetic core, 21 motor shaft axle sleeve
The internal screw thread that 22 motor shafts are matched with turbine rotor external screw thread
The 24 turbine end fixed hub internal screw thread of internal screw thread that 23 motor shafts are mutually assembled with generator terminal fixed hub of calming the anger
25 26 turbine rotor external screw thread of turbine end fixed hub external cylindrical surface, 27 turbine rotor locks annular groove
28 turbine rotors and compressor impeller assemble 29 turbine rotor clamping nut of external screw thread
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of long-life closed cycle turbine electricity generation system rotor structure, including compressor impeller 1, elastic locking ring 2, axis
Radial compound axle sleeve 3, generator terminal of calming the anger fixed hub 4, motor shaft 5, radial axle sleeve 6, turbine end fixed hub 7 and turbine rotor 8.
There are the external cylindrical surface 9 mutually assembled with generator terminal fixed hub of calming the anger, the center of the compressor impeller 1 on the compressor impeller 1
There is blind hole, there is unthreaded hole 12, locking annular groove 10 and internal screw thread 11, the gas compressor blade on the central blind hole of the compressor impeller 1
The internal screw thread rotation direction of wheel 1 is identical as rotation direction when turbine electricity generation system working rotor, the inlet end of the compressor impeller 1
There is the nut 13 tight for mounting clip；2 ring of elastic locking is placed in the locking annular groove of turbine rotor and compressor impeller；Institute
The annular end face 14 for having coaxial air floating bearing fit on axis radial direction composite shaft sleeve 3 is stated, on the axis radial direction composite shaft sleeve 3
There is the external cylindrical surface 16 of same radial floating bearing fit, the axis radial direction composite shaft sleeve 3 is using with self-lubricating, wear-resisting and resistance to height
The ceramic material of temperature, the axis radial direction composite shaft sleeve 3 are assemblied in by inner hole 15 and are calmed the anger on generator terminal fixed hub；The compressor
There is the inner cylinder face 17 mutually assembled with compressor impeller in end 4 one end of fixed hub, and described one end for calming the anger generator terminal fixed hub 4 has
The external cylindrical surface 18 mutually assembled with composite shaft sleeve, the other end for calming the anger generator terminal fixed hub 4 have and motor shaft internal screw thread phase
The external screw thread 19 of assembly；The motor shaft 5 is made of magnetic core 20 and motor shaft sleeve 21, and the magnetic core 20 of the motor shaft 5 is located at electricity
Inside arbor set 21, there are the internal screw thread 23 mutually assembled with generator terminal fixed hub of calming the anger, the motor shaft in one end of the motor shaft 5
5 other end has the internal screw thread 22 mutually assembled with turbine rotor external screw thread；The radial direction axle sleeve 6 is cirque structure, the diameter
Matched to the external cylindrical surface of axle sleeve 6 with radial gas floating bearing, it is described radial direction axle sleeve 6 using have self-lubricating, it is wear-resisting and
High temperature ceramic material, the radial direction axle sleeve 6 are assemblied on turbine end fixed hub by inner hole；The turbine end fixed hub
There is the internal screw thread 24 mutually assembled with the external screw thread of turbine rotor on 7, the turbine end fixed hub 7 has mutually to be assembled with radial axle sleeve
External cylindrical surface 25；The turbine rotor 8 is welded by turbine wheel and shaft, has same turbine end on the turbine rotor 8
The external screw thread 26 that fixed hub internal screw thread is mutually assembled with motor shaft internal screw thread has in same compressor impeller on the turbine rotor 8
The external screw thread 28 that screw thread mutually assembles, there is the locking annular groove 27 with the assembly of elastic locking ring on the turbine rotor 8, and the turbine turns
There is the nut 29 tight for mounting clip in sub 8 one end.
A kind of long-life closed cycle turbine electricity generation system rotor moulding process, comprising the following steps:
A, it determines the parameters of structural dimension of long-life closed cycle turbine electricity generation system rotor: being sent out according to closed cycle turbine
The dimensional parameters of the turbine of electric system, compressor and motor determine that turbine electricity generation system rotor forms components i.e. gas compressor blade
Wheel, elastic locking ring, axis radial direction composite shaft sleeve, generator terminal of calming the anger fixed hub, motor shaft, turbine end fixed hub, radial axle sleeve
With the structure size of turbine rotor；
The turbine wheel diameter of the present embodiment type closed cycle turbine electricity generation system is Ф 90mm, gas compressor blade wheel diameter
It is Ф 38mm for Ф 96mm, motor shaft diameter, direction of rotation when turbine electricity generation system working rotor is dextrorotation, is followed according to enclosed
The dimensional parameters of the turbine wheel of ring turbine electricity generation system, compressor impeller and motor, the internal screw thread of determining compressor impeller 1
11 diameters having a size of M12 × 1-H7H7-LH, unthreaded hole 12 are Ф 12mm, 9 diameter of external cylindrical surface is Ф 20mm, the determining diameter of axle
Diameter to the inner cylinder face 15 of composite shaft sleeve 3 is Ф 28mm, the ruler of the inner cylinder face 17 of the generator terminal fixed hub 4 of calming the anger determined
Very little is Ф 20mm, the size of external cylindrical surface 18 is Ф 28mm, the size of external screw thread 19 is M36 × 1-p6p6-LH, determining motor
The internal screw thread 23 of axis 5 is having a size of M36 × 1-H7H7-LH, internal screw thread 22 having a size of M20 × 1-H7H7-LH, determining radial axle sleeve
6 internal diameter and outer diameter is respectively Ф 28mm and Ф 36mm, and the size of the internal screw thread 24 of determining turbine end fixed hub 7 is M24
× 1-H7H7-LH, the external screw thread 26 of determining turbine rotor 8 are M12 having a size of the size of M24 × 1-p6p6-LH, external screw thread 28
×1-p6p6-LH。
B, it determines the Screw assembly screw-down torque between rotor composition components: being turned according to closed cycle turbine electricity generation system
Son revolving speed, torque delivery request and kinetic parameter, determine closed cycle turbine electricity generation system rotor composition components it
Between Screw assembly screw-down torque；
C, it carries out the manufacture of long-life closed cycle turbine electricity generation system rotor composition components: being determined according to step a
Turbine electricity generation system rotor forms the parameters of structural dimension of components, processes compressor impeller, elastic locking ring, axis radial compound
Axle sleeve, generator terminal of calming the anger fixed hub, motor shaft, turbine end fixed hub, radial axle sleeve and turbine rotor；
D, the assembly of turbine end fixed hub and radial axle sleeve: by the assembly of radial axle sleeve 6 in the outer of turbine end fixed hub 7
On cylindrical surface 25, and guarantee that counterface is adjacent to, forms turbine end sleeve assembly；
E, the assembly of generator terminal of calming the anger fixing axle and axis radial direction composite shaft sleeve: axis radial direction composite shaft sleeve 3 is assembled in compressor
On the external cylindrical surface 18 for holding fixed hub 4, and guarantee that counterface is adjacent to, forms generator terminal sleeve assembly of calming the anger；
F, the motor shaft magnetic core 20 and motor of processing the assembly of motor shaft magnetic core and motor shaft axle sleeve: will be completed in step c
Axis axle sleeve 21 is realized the elastic conjunction of motor shaft magnetic core 20 and motor shaft axle sleeve 21, is made electricity using heating motor shaft axle sleeve mode
Arbor magnetic core one end is adjacent to axle sleeve inner face, forms complete motor shaft；
G, assembly of the turbine rotor with turbine end sleeve assembly and motor shaft: the assembly screw-down torque determined according to step b,
It is screwed by screw thread, successively assembles the step d turbine end sleeve assembly formed and step the f motor shaft formed in turbine rotor
On 8, it is adjacent to end face mutually；
H, assembly of generator terminal of the calming the anger sleeve assembly with motor shaft: the generator terminal sleeve assembly of calming the anger that step e is formed is across whirlpool
Rotor 8 is taken turns, according to the assembly screw-down torque that step b is determined, is screwed by screw thread, the generator terminal that will calm the anger sleeve assembly is assembled in motor
On axis, the end face of generator terminal fixed hub 4 that makes to calm the anger is adjacent to the magnetic core 20 of motor shaft 5；
I, assembly of the compressor impeller with calm the anger generator terminal fixed hub, turbine rotor and elastic locking ring: first will be elastic
Retaining ring 2 is mounted in the locking annular groove 27 of turbine rotor 8, according to the assembly screw-down torque that step b is determined, passes through gas compressor blade
Wheel 1 screws assembly with the screw thread of turbine rotor 8, by compressor impeller 1 with calm the anger generator terminal fixed hub 3, turbine rotor 8 and elasticity
Retaining ring 2 is assembled together, and forms complete rotor structure.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of long-life closed cycle turbine electricity generation system rotor structure, it is characterised in that: including compressor impeller (1), bullet
Property retaining ring (2), axis radial direction composite shaft sleeve (3), generator terminal of calming the anger fixed hub (4), motor shaft (5), radial axle sleeve (6), turbine
Hold fixed hub (7) and turbine rotor (8)；The elastic locking ring (2) is placed in the retaining ring of turbine rotor and compressor impeller
In slot；The motor shaft (5) is made of magnetic core (20) and motor shaft sleeve (21), and the magnetic core (20) of the motor shaft (5) is located at electricity
Arbor set (21) is internal, and there is the internal screw thread (23) mutually assembled with generator terminal fixed hub of calming the anger in one end of the motor shaft (5), described
The other end of motor shaft (5) has the internal screw thread (22) mutually assembled with turbine rotor external screw thread；The radial direction axle sleeve (6) is circular ring shape
The external cylindrical surface of structure, the radial direction axle sleeve (6) is matched with radial floating bearing, and the radial direction axle sleeve (6) is using with certainly
Lubrication, wear-resisting and high temperature ceramic material, the radial direction axle sleeve (6) are assemblied on turbine end fixed hub by inner hole；It is described
There are the internal screw thread (24) mutually assembled with the external screw thread of turbine rotor, the turbine end fixed hub on turbine end fixed hub (7)
(7) there is the external cylindrical surface (25) mutually assembled with radial axle sleeve；The turbine rotor (8) is welded by turbine wheel and shaft,
The external screw thread (26) for thering is same turbine end fixed hub internal screw thread mutually to assemble with motor shaft internal screw thread on the turbine rotor (8), institute
The external screw thread (28) for having same compressor impeller internal screw thread mutually to assemble on turbine rotor (8) is stated, is had on the turbine rotor (8) and bullet
Property retaining ring (2) assemble locking annular groove (27), described turbine rotor (8) one end has the nut tight for mounting clip (29).
2. a kind of long-life closed cycle turbine electricity generation system rotor structure according to claim 1, it is characterised in that: institute
Stating has the external cylindrical surface (9) mutually assembled with generator terminal fixed hub of calming the anger on compressor impeller (1), the compressor impeller (1)
There is blind hole at center, there is unthreaded hole (12), locking annular groove (10) and internal screw thread (11) on the central blind hole of the compressor impeller (1),
The internal screw thread rotation direction of the compressor impeller (1) is identical as rotation direction when turbine electricity generation system working rotor, described to calm the anger
The inlet end of machine impeller (1) has the nut tight for mounting clip (13).
3. a kind of long-life closed cycle turbine electricity generation system rotor structure according to claim 1, it is characterised in that: institute
Stating generator terminal fixed hub (4) one end of calming the anger has the inner cylinder face (17) mutually assembled with compressor impeller, and the generator terminal of calming the anger is fixed
There are the external cylindrical surface (18) mutually assembled with composite shaft sleeve, the other end of generator terminal fixed hub (4) of calming the anger in one end of axle sleeve (4)
There is the external screw thread (19) mutually assembled with motor shaft internal screw thread.
4. a kind of long-life closed cycle turbine electricity generation system rotor structure according to claim 1, it is characterised in that: institute
State the annular end face (14) for having coaxial air floating bearing fit on axis radial direction composite shaft sleeve (3), the axis radial direction composite shaft
There is the external cylindrical surface (16) of same radial gas floating bearing cooperation on set (3), the axis radial direction composite shaft sleeve (3) is using with certainly
Lubrication, wear-resisting and resistant to high temperature ceramic material, it is solid that the axis radial direction composite shaft sleeve (3) is assemblied in generator terminal of calming the anger by inner hole (15)
Dead axle is put on.
5. a kind of moulding process of long-life closed cycle turbine electricity generation system rotor structure according to claim 1, one
The moulding process of kind long-life closed cycle turbine electricity generation system rotor, it is characterised in that: the following steps are included:
A, the parameters of structural dimension of long-life closed cycle turbine electricity generation system rotor is determined；
B, the Screw assembly screw-down torque between rotor composition components is determined；
C, the manufacture of long-life closed cycle turbine electricity generation system rotor composition components is carried out；
D, radial axle set the assembly of turbine end fixed hub and radial axle sleeve: is assembled to the external cylindrical surface in turbine end fixed hub
On, and guarantee that counterface is adjacent to, form turbine end sleeve assembly；
E, the assembly of generator terminal of calming the anger fixing axle and axis radial direction composite shaft sleeve: axis radial direction composite shaft sleeve is assembled and is fixed in generator terminal of calming the anger
On the external cylindrical surface of axle sleeve, and guarantee that counterface is adjacent to, forms generator terminal sleeve assembly of calming the anger；
F, the assembly of motor shaft magnetic core and motor shaft axle sleeve；
G, assembly of the turbine rotor with turbine end sleeve assembly and motor shaft；
H, assembly of generator terminal of the calming the anger sleeve assembly with motor shaft；
I, assembly of the compressor impeller with calm the anger generator terminal fixed hub, turbine rotor and elastic locking ring.
6. a kind of long-life closed cycle turbine electricity generation system rotor structure moulding process according to claim 5, special
Sign is: in step g, according to the assembly screw-down torque that step b is determined, being screwed by screw thread, the whirlpool for successively forming step d
The motor shaft that wheel end sleeve assembly and step f are formed is assemblied on turbine rotor, is adjacent to end face mutually.
7. a kind of long-life closed cycle turbine electricity generation system rotor structure moulding process according to claim 5, special
Sign is: in step h, the generator terminal sleeve assembly of calming the anger that step e is formed is across turbine rotor, the dress determined according to step b
It with screw-down torque, is screwed by screw thread, the generator terminal that will calm the anger sleeve assembly assembles on motor shaft, makes generator terminal fixed hub of calming the anger
The magnetic core of end face and motor shaft is adjacent to.
8. a kind of long-life closed cycle turbine electricity generation system rotor structure moulding process according to claim 5, special
Sign is: in step i, elastic locking ring being mounted in turbine rotor locking annular groove first, the assembly determined according to step b
Screw-down torque screws assembly with the screw thread of turbine rotor by compressor impeller, by compressor impeller with generator terminal fixing axle of calming the anger
Set, turbine rotor and elastic locking ring are assembled together, and form complete rotor structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910647986.4A CN110344891B (en) | 2019-07-18 | 2019-07-18 | Rotor structure and process of long-life closed circulation turbine power generation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910647986.4A CN110344891B (en) | 2019-07-18 | 2019-07-18 | Rotor structure and process of long-life closed circulation turbine power generation system |
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| CN110344891B CN110344891B (en) | 2022-11-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360570A (en) * | 2020-10-26 | 2021-02-12 | 北京动力机械研究所 | Runoff impeller side-mounted high-speed thermoelectric conversion system rotating shaft and process thereof |
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| CN106988784A (en) * | 2017-03-24 | 2017-07-28 | 中国北方发动机研究所(天津) | A kind of radial-flow type rotating shaft of supercharger turbine structure and its moulding process |
| US20180062467A1 (en) * | 2015-04-01 | 2018-03-01 | Liebherr-Aerospace Toulouse Sas | Rotor assembly and turbine engine with gas bearings including such a rotor assembly |
| CN207568669U (en) * | 2017-12-07 | 2018-07-03 | 刘强 | Pressure energy reclaimer and pipeline pressure energy recovery system |
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| CN105637196A (en) * | 2013-10-25 | 2016-06-01 | 艾克莫特公司 | Retention of a rotor of an electronically-controlled turbomachine |
| US20180062467A1 (en) * | 2015-04-01 | 2018-03-01 | Liebherr-Aerospace Toulouse Sas | Rotor assembly and turbine engine with gas bearings including such a rotor assembly |
| CN106988784A (en) * | 2017-03-24 | 2017-07-28 | 中国北方发动机研究所(天津) | A kind of radial-flow type rotating shaft of supercharger turbine structure and its moulding process |
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| CN110344891B (en) | 2022-11-04 |
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