CN108331616A - A kind of wheeling disk structure of disc type turbine - Google Patents
A kind of wheeling disk structure of disc type turbine Download PDFInfo
- Publication number
- CN108331616A CN108331616A CN201810300995.1A CN201810300995A CN108331616A CN 108331616 A CN108331616 A CN 108331616A CN 201810300995 A CN201810300995 A CN 201810300995A CN 108331616 A CN108331616 A CN 108331616A
- Authority
- CN
- China
- Prior art keywords
- disc
- type turbine
- disk structure
- runner
- gas vent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Hydraulic Turbines (AREA)
Abstract
The invention discloses a kind of wheeling disk structure of disc type turbine, including disc, disc runner and gasket, disc includes disc outer edge area, disk main body region, disc gas vent and disc axis hole.Disc and gasket arranged for interval, it is concentrically mounted in shaft, disc outer rim molded line is using wedge angle, circular arc, elliptic arc etc., disc thickness can be equal thickness, also can reduce along disc radial ecto-entad thickness, and when mounted along wheel disc direction of rotation, disc gas vent differs certain angle in the circumferential.The wheeling disk structure significantly reduces flow losses of energy loss and working medium of the working medium during leaving disc runner into disc runner and working medium in nozzle or spiral case in wheel disc in the existing wheeling disk structure of disc type turbine, considerably improves the flow efficiency of disc type turbine and whole aeroperformance.
Description
Technical field
The present invention relates to a kind of wheeling disk structure, more particularly to a kind of wheeling disk structure of the raising without leaf turbine flow efficiency.
Background technology
Disc type turbine is axially disposed in its shaft to have multiple disks, adjacent discs using no leaf turbine structural shape
Spacing very little is provided with one or several gas vents in disk center region close to rotating shaft position, and several nozzles or spiral case are arranged in
On the outside of disk, entire rotary part is encapsulated in shell.
The working medium of disc type turbine expands acceleration in nozzle vane passage or spiral case, multiple flowing through by fluid viscosity
When several gaps that disk is formed, drag interaction is generated to wheel disc, so that it is pivoted, the thermal energy of fluid is converted into machinery
Work(is finally flowed out from the gas vent being arranged on disk.
The wheel disc of disc type turbine is made of multiple concentric discs at present, and disc centre bit is equipped with several gas vents, disk
Outer edge surface do not handled, be obtuse edge, wheel disc outer rim is concordant with disc runner lateral surface, and the main part of disc
It is equal thickness, in addition, each gas vent of disc is mounted on same circumferential position.From the point of view of the acting principle of disc type turbine,
Disc type turbine accelerates by spiral case or nozzle expansion, and working medium speed reaches maximum in wheel disc entrance, and is flowed into closely tangential
Disc runner is flowed with the track of helix in disc runner, is finally flowed out from the gas vent of disc.Working medium is from nozzle stream
It when entering disc runner, is generally flush with due to the outer rim of each disc, working medium will generate energy loss in disc outer rim stagnation.Working medium
It is flowed in disc runner, as working medium flows to wheel disc outlet, speed edges layer thickness increases, the boundary layer of disc runner both sides
It can interfere, reduce turbine acting ability, namely increase flow losses of the working medium in wheel disc.In addition, working medium is in wheel disc
In speed mainly based on tangential velocity, axial velocity very little also can here so working medium is difficult outflow disc gas vent
Generate prodigious energy loss.
Therefore propose that a kind of structure that can effectively reduce wheel disc energy loss is urgently to be resolved hurrily in the research of disc type turbine
The problem of.
Invention content
The purpose of the present invention is to provide a kind of wheeling disk structures of disc type turbine.
To achieve the above object, present invention employs following technical schemes：
A kind of wheeling disk structure of disc type turbine, the wheeling disk structure include it is multiple can coaxial rotating disc and be set to disk
The disc runner of piece end surface side (is surrounded at disc rotation center and is arranged close to the position of disc rotation center on the disc
Axis hole) be provided with the gas vent being connected with the disc runner, the gas vent of adjacent disc on piece differs certain in the circumferential
Angle and partly overlap, the outer edge surface of the disc outwardly protrudes the edge for axial cross section in intermediate shape high, both sides are low
Shape.
Preferably, the end surface side of the disc is provided with and the co-axially fixed gasket of the disc, the thickness and disk of gasket
The ratio between radius of piece is 0.004~0.06.
Preferably, the ratio between radius of the thickness of the disc and disc is 0.01~0.06.
Preferably, the edge of the axial cross section is tip-angled shape, arc-shaped or oval arcuation.
Preferably, the disc thickness on the disc at different location is equal, alternatively, with disc rotation center distance
Reduction, disc thickness reduce.
Preferably, the number of the disc is 2~20, and the number of the gas vent on disc is 2~8.
The turbine includes shell and the spiral case or nozzle that are set in shell, the wheeling disk structure be set to nozzle or
In spiral case, the gap between gap and outermost disc and shell between adjacent disc respectively constitutes disc runner (i.e. disc
Runner is located at disc end surface side), the working medium of turbine enters from nozzle or spiral case after disc runner to flow out through gas vent.
Preferably, the size in the gap between the adjacent disc is determined by spacer thickness, the outermost disc and shell
The size in the gap between body is less than or equal to the gap size between adjacent disc.
Beneficial effects of the present invention are embodied in：
Wheeling disk structure of the present invention can be effectively reduced working medium in disc type turbine and enter disc from nozzle or spiral case
Runner and working medium leave the energy loss during disc runner, considerably improve the flow efficiency of disc type turbine and pneumatic property
Energy.
Description of the drawings
Fig. 1 is the disc type turbine vertical section schematic diagram that disc outer rim molded line is wedge angle；
Fig. 2 a are the 3D solid figure (end face sight) of disc type turbine wheel disc；
Fig. 2 b are the 3D solid figure (side sight) of disc type turbine wheel disc；
Fig. 3 is different type disc outer rim molded line schematic diagram；
Fig. 4 is wheel disc vertical section schematic diagram of the disc thickness with change in location on disc；
In figure：1 is disc, 2 gap between adjacent disc；3 gap between disc and shell, 4 be gasket, 5
It is wheel disc upstream for shaft, 6,7 be shell, and 8 be disc outer edge area, and 9 be disk main body region, and 10 be gas vent, and 11 be axis
Hole, 12 be wedge angle molded line, and 13 be circular arc molded line, and 14 be elliptic arc molded line.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.
As shown in Figure 1, the present invention provides a kind of wheeling disk structure improving disc type turbine flow efficiency, including disc 1, disk
Piece runner and gasket 4, disc 1 arrange that several discs and gasket collectively form wheel disc, be concentrically mounted on 4 alternate intervals of gasket
In shaft 5, finally the spiral case together with wheel disc upstream 6 or nozzle are encapsulated in turbine housing 7.Between being formed between adjacent disc
Disc runner at gap 2, the disc end face rotated by 2 are constituted, and are formed in the gap 3 between outermost disc and shell 7
The disc runner at place, the disc end face and a fixed inner walls face rotated by one are constituted.Disc 1 be it is discoid,
Side is disc outer edge area 8, and end face is disk main body region 9, and disk main body region 9 is centrally disposed for connecting shaft 5
Axis hole 11, several (such as 3) gas vents 10 are located in disk main body region 9, are surrounded on the 5 evenly dispersed cloth in outside of axis hole
It sets.The thickness of disc 1 should consider disc processing and installation accuracy and Turbine pneumatic performance, disc thickness and disc radius it
Than between 0.01~0.06.The thickness of gasket 4 determines the size in the gap 2 between adjacent disc, should not be too large or how small,
Between 0.004~0.06, the size in the gap 3 between outermost disc and shell is wanted for the ratio between spacer thickness and disc radius
Less than or equal to the size in the gap 2 between adjacent disc, avoid flowing out in gap 3 of the more working medium between disc and shell
Caused acting ability and efficiency of turbine decline.
As shown in Fig. 2 a, Fig. 2 b, the gasket 4 is located at 11 outside of axis hole, and gas vent 10 is arranged along the outside of gasket 4, wheel
When mounted, along the direction of rotation of wheel disc, the gas vent 10 of each disc 1 certain angle that is uniformly staggered in the circumferential (is staggered disk
Angle it is related to the tangential velocity that working medium is exported in wheel disc, tangential velocity is bigger, and the angle being staggered is bigger), form one
The flow passage area of similar blade, when effectively preventing working medium by disc runner outflow wheel disc, working medium tangential velocity strongly reduces
Phenomenon reduces energy loss during working medium flows out, and improves the aeroperformance of disc type turbine.
As shown in figure 3, wedge angle molded line 12, circular arc molded line 13 or elliptic arc molded line 14 can be used in disc outer edge area 8, in disk
The section in an axial direction of the outer edge surface of piece forms evagination edge intermediate high, that both sides are low, can be effectively reduced working medium from nozzle or
Spiral case enters the energy loss during wheel disc, significantly reduces the stagnation that working medium occurs in sheave surface, it is saturating to greatly improve disc type
Flat hot merit transformation efficiency, especially suitable for a pair of of multiinjector air inlet disk formula turbine and volute air-inlet disc type turbine.Wherein, wedge angle
Molded line 12 determines that circular arc molded line 13 is determined by disc thickness, and elliptic arc by the angle between two molded line of disc thickness and wedge angle
Molded line 14 is determined by disc thickness and ellipticity.
As shown in figure 4, disk main body region 9 in addition to using equal thickness, can also use thickness design, with working medium stream
It is exported to wheel disc, i.e., with reducing at a distance from spindle central, disc thickness reduces, and disc gap increases, and can ensure in this way
The boundary layer of disc runner both sides will not interfere, and the decline of acting ability be avoided, when the disc of this Varying-thickness is processed
The method that pressing mold can be used can be manufactured conveniently.
Claims (9)
1. a kind of wheeling disk structure of disc type turbine, it is characterised in that：The wheeling disk structure include it is multiple can coaxial rotating disc (1)
And be set to the disc runner of disc (1) end surface side, on the disc (1) close to the position of disc rotation center be provided with
The gas vent (10) that the disc runner is connected, the gas vent (10) on adjacent disc (1) differ certain angle in the circumferential
It spends and partly overlaps, the outer edge surface of the disc (1) outwardly protrudes the edge for axial cross section in intermediate shape high, both sides are low
Shape.
2. a kind of wheeling disk structure of disc type turbine according to claim 1, it is characterised in that：The end surface side of the disc (1)
Be provided with the disc (1) co-axially fixed gasket (4), the ratio between the thickness of gasket (4) and the radius of disc (1) be 0.004
~0.06.
3. a kind of wheeling disk structure of disc type turbine according to claim 1, it is characterised in that：The thickness of the disc (1) with
The ratio between radius of disc (1) is 0.01~0.06.
4. a kind of wheeling disk structure of disc type turbine according to claim 1, it is characterised in that：The edge of the axial cross section is
Tip-angled shape, arc-shaped or oval arcuation.
5. a kind of wheeling disk structure of disc type turbine according to claim 1, it is characterised in that：The upper different positions of disc (1)
The disc thickness for setting place is equal, alternatively, with the reduction with disc (1) rotation center distance, disc thickness reduces.
6. a kind of wheeling disk structure of disc type turbine according to claim 1, it is characterised in that：The number of the disc (1) is 2
~20, the number of the gas vent (10) on disc (1) is 2~8.
7. a kind of disc type turbine, it is characterised in that：The wheel disc of the turbine include it is multiple can coaxial rotating disc (1) and setting
It is provided with and the disc in the position of close disc rotation center on the disc runner of disc (1) end surface side, the disc (1)
The gas vent (10) that runner is connected, the gas vent (10) on adjacent disc (1) differ certain angle and part in the circumferential
The outer edge surface of overlapping, the disc (1) outwardly protrudes the edge for axial cross section in intermediate shape high, both sides are low.
8. a kind of disc type turbine according to claim 7, it is characterised in that：The turbine includes shell (7) and is set to
Spiral case or nozzle in shell (7), the wheel disc are set in nozzle or spiral case, gap between adjacent disc (1) and outermost
Gap between side panel piece (1) and shell (7) respectively constitutes disc runner, and the working medium of turbine enters disc stream from nozzle or spiral case
Behind road wheel disc is flowed out through gas vent (10).
9. a kind of disc type turbine according to claim 8, it is characterised in that：Between the outermost disc (1) and shell (7)
Gap size be less than or equal to adjacent disc (1) between gap size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810300995.1A CN108331616B (en) | 2018-04-04 | 2018-04-04 | Wheel disc structure of disc turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810300995.1A CN108331616B (en) | 2018-04-04 | 2018-04-04 | Wheel disc structure of disc turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108331616A true CN108331616A (en) | 2018-07-27 |
| CN108331616B CN108331616B (en) | 2023-05-02 |
Family
ID=62933971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810300995.1A Active CN108331616B (en) | 2018-04-04 | 2018-04-04 | Wheel disc structure of disc turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108331616B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488741A (en) * | 2018-10-22 | 2019-03-19 | 杨时民 | A kind of hydraulic transmission box |
Citations (8)
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|---|---|---|---|---|
| US6692232B1 (en) * | 2001-03-16 | 2004-02-17 | Guy Louis Letourneau | Rotor assembly for disc turbine |
| US20110164958A1 (en) * | 2010-01-05 | 2011-07-07 | Saitoh Takeo S | Centrifugal reverse flow disk turbine and method to obtain rotational power thereby |
| CN102182517A (en) * | 2011-05-04 | 2011-09-14 | 南京航空航天大学 | Boundary layer turbine with blade plate |
| US20140321976A1 (en) * | 2013-04-26 | 2014-10-30 | Sol-Electrica, Llc | Modular thermal molecular adhesion turbine |
| CN104675510A (en) * | 2014-12-17 | 2015-06-03 | 北京航空航天大学 | Low-pneumatic-inertia quick-response high-altitude two-stage turbocharger |
| CN105201559A (en) * | 2014-06-20 | 2015-12-30 | 时剑 | Penetrating type worm wheel |
| CN106762672A (en) * | 2016-12-19 | 2017-05-31 | 中国农业大学 | Reel sprinkling irrigation machine and its turbine type hydroturbine |
| CN208153063U (en) * | 2018-04-04 | 2018-11-27 | 西安交通大学 | The wheeling disk structure of disc type turbine |
-
2018
- 2018-04-04 CN CN201810300995.1A patent/CN108331616B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6692232B1 (en) * | 2001-03-16 | 2004-02-17 | Guy Louis Letourneau | Rotor assembly for disc turbine |
| US20110164958A1 (en) * | 2010-01-05 | 2011-07-07 | Saitoh Takeo S | Centrifugal reverse flow disk turbine and method to obtain rotational power thereby |
| CN102182517A (en) * | 2011-05-04 | 2011-09-14 | 南京航空航天大学 | Boundary layer turbine with blade plate |
| US20140321976A1 (en) * | 2013-04-26 | 2014-10-30 | Sol-Electrica, Llc | Modular thermal molecular adhesion turbine |
| CN105201559A (en) * | 2014-06-20 | 2015-12-30 | 时剑 | Penetrating type worm wheel |
| CN104675510A (en) * | 2014-12-17 | 2015-06-03 | 北京航空航天大学 | Low-pneumatic-inertia quick-response high-altitude two-stage turbocharger |
| CN106762672A (en) * | 2016-12-19 | 2017-05-31 | 中国农业大学 | Reel sprinkling irrigation machine and its turbine type hydroturbine |
| CN208153063U (en) * | 2018-04-04 | 2018-11-27 | 西安交通大学 | The wheeling disk structure of disc type turbine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488741A (en) * | 2018-10-22 | 2019-03-19 | 杨时民 | A kind of hydraulic transmission box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108331616B (en) | 2023-05-02 |
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