CN107829784A - A kind of vortex disc of vortex expander - Google Patents
A kind of vortex disc of vortex expander Download PDFInfo
- Publication number
- CN107829784A CN107829784A CN201710826542.8A CN201710826542A CN107829784A CN 107829784 A CN107829784 A CN 107829784A CN 201710826542 A CN201710826542 A CN 201710826542A CN 107829784 A CN107829784 A CN 107829784A
- Authority
- CN
- China
- Prior art keywords
- circular arc
- involute
- point
- scroll plate
- circle
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
A kind of vortex disc of vortex expander provided by the invention, scroll plate center initiating terminal is circular arc, scroll plate outer wall is involute that is tangent with the circular arc the outer end point of scroll plate center initiating terminal and stretching out, scroll plate inwall is composite curve that is tangent with end points in the circular arc of scroll plate center initiating terminal and stretching out, and composite curve is made up of straightway IG, the first involute GH, the first circular arc HN, the second circular arc NM, three-arc MD and the second involute in smoothing junction successively；The straightway IG is connection circular arc C I and the first involute GH common tangent, and point of contact is point I and point G；During scroll plate normal work, scroll molded line MNHGIC is not involved in the engagement of scroll plate.A kind of vortex disc of vortex expander disclosed by the invention, time and area that air admission hole is blocked can be reduced when scroll plate rotates, so as to reduce inlet loss, greatly improve scroll expander pneumatic power transformation efficiency.
Description
Technical field
The invention belongs to scroll expander technical field, and in particular to a kind of vortex disc of vortex expander.
Background technology
Scroll machine is a kind of novel fluids machineries, screw compressor have efficiency high, it is environment-friendly, simple in construction, can
By property it is high, fire-proof and explosion-proof the advantages that.Core component of the scroll plate of scroll expander as scroll expander, it is designed and processing
Have an impact to the pneumatic power transformation efficiency for improving scroll expander.
Screw compressor is identical with the basic structure of scroll expander, working mechanism that is having contrary.The vortex used at present
Expanding machine is mainly transformed from screw compressor, and scroll plate top is mostly that bicircular arcs, bicircular arcs add the formation such as straight line vortex
Tooth, by the scroll wrap that modification of double arc obtains in scroll expander normal work, due at a time expanding machine air admission hole
It can be blocked by orbiter, so that air admission hole power attenuation increases, and then influence scroll expander pneumatic power transformation efficiency.
The content of the invention
The present invention avoids scroll plate normal work in order to solve the above technical problems, provide a kind of vortex disc of vortex expander
When orbiter tooth head the enterprising stomata of determine vortex disk is blocked, greatly reduce expansion air inlet power attenuation, improve be vortexed it is swollen
Swollen machine pneumatic power transformation efficiency.
In order to solve the technical problem of the present invention, the present invention is achieved by the following technical solutions：One kind, which is vortexed, to be expanded
Machine scroll plate, scroll plate center initiating terminal are circular arc, and scroll plate outer wall is the circular arc outer end with scroll plate center initiating terminal
Point is tangent and the involute that stretches out, scroll plate inwall be it is tangent with end points in the circular arc of scroll plate center initiating terminal and
The composite curve to stretch out, the composite curve is by straightway IG in smoothing junction successively, the first involute GH, the first circular arc
HN, the second circular arc NM, three-arc MD and the second involute are formed, and the second involute is to extend to tooth tail since point D
Involute；The straightway IG is connection circular arc C I and the first involute GH common tangent, and point of contact is point I and point G；The whirlpool
During capstan normal work, scroll molded line MNHGIC is not involved in the engagement of scroll plate.
The equation of the scroll plate outer wall involute-type is：
Wherein：R is base radius,For the circle involute angle of spread ,-α is that angle occurs for circle involute, and α is positive number.
The equation of involute-type is where scroll plate inwall the first involute GH and the second involute：
Wherein：R is base radius,For the circle involute angle of spread, α is that angle occurs for circle involute.
Equation of a circle where the scroll plate circular arc C I is：(x-xO1)2+(y-yO1)2=R1 2, wherein：xO1、yO1For circular arc C I
Center of circle O1Abscissa and ordinate, R1For circular arc C I radius；
xO1、yO1Can be by equation groupObtain, xC、yCFor point C coordinates.Point C is vortex
Disk outer wall involute and point of contact tangent scroll plate circular arc C I, R1For circular arc C I radius, β is correction angle, and β is also for outside scroll plate
For wall involute in the point C angle of spread, r is base radius.
Point C coordinates can be by equationObtain.
The first involute GH and the first circular arc HN are tangent, circle where the three-arc DM and circle where circular arc HN
Point of contact is F, the center of circle O of the first circular arc HN3, three-arc DM center of circle O2With point F on same straight line, described first
Circular arc HN N points and three-arc MD M points are connected by circular arc NM, the circular arc NM respectively with three-arc MD M points and
First circular arc HN N points are tangent, and the three-arc MD and the second involute are tangent.
Equation of a circle where the scroll plate three-arc MD is：(x-xo2)2+(y-yo2)2=R2 2, wherein：xO2、yO2For circle
Arc MD center of circle O2Abscissa and ordinate, R2For circular arc DM radius.
xO2、yO2By equation groupObtain, xD、yDFor point D coordinates.Point D is scroll plate
Inwall involute and the tangent point of contacts of three-arc MD, R2For circular arc MD radius, R2Meet relation R1+R2=2r, β are amendment
Angle, β+π be scroll plate inwall involute in the point D angle of spread, r is base radius；
Point D coordinates can be by equationObtain.
Compared with prior art, the beneficial effect that obtains of the present invention is：
A kind of vortex disc of vortex expander provided by the invention, the DM sections of scroll molded line are meshing profile, scroll molded line
MNHGIC parts are not involved in the engagement of scroll plate, and non-fully to engage scroll molded line, air admission hole can be reduced when scroll plate rotates
The time being blocked and area, so as to reduce inlet loss, greatly improve scroll expander pneumatic power transformation efficiency.
Brief description of the drawings
Fig. 1 is scroll wrap molded line formation basic theory figure of the present invention.
Fig. 2 is scroll expander air admission hole position view of the present invention.
Reference：1st, air admission hole；2nd, scroll plate.
Embodiment
Below in conjunction with the accompanying drawings, embodiment is described in detail.
Referring to accompanying drawing 1 and accompanying drawing 2, a kind of vortex disc of vortex expander, the center initiating terminal of scroll plate 1 is circular arc, whirlpool
The outer wall of capstan 1 is and the involute that stretches out tangent with the circular arc the outer end point of the center initiating terminal of scroll plate 1, in scroll plate 1
Wall is and the composite curve that stretches out tangent with end points in the circular arc of the center initiating terminal of scroll plate 1, the composite curve by
Straightway IG in smoothing junction, the first involute GH, the first circular arc HN, the second circular arc NM, three-arc MD and second be gradually successively
Burst at the seams composition, and the second involute is the involute that tooth tail is extended to since point D；The straightway IG is connection circular arc C I
With the first involute GH common tangent, point of contact is point I and point G；During 1 normal work of scroll plate, scroll molded line MNHGIC is not
Participate in the engagement of scroll plate 1.
The equation of the outer wall involute-type of scroll plate 1 is：
Wherein：R is base radius,For the circle involute angle of spread ,-α is that angle occurs for circle involute, and α is positive number.
The equation of involute-type is where inwall the first involute GH of scroll plate 1 and the second involute：
Wherein：R is base radius,For the circle involute angle of spread, α is that angle occurs for circle involute.
Equation of a circle where the circular arc C I of scroll plate 1 is：(x-xO1)2+(y-yO1)2=R1 2, wherein：xO1、yO1For circular arc C I
Center of circle O1Abscissa and ordinate, R1For circular arc C I radius；
xO1、yO1Can be by equation groupObtain, xC、yCFor point C coordinates.Point C is vortex
The outer wall involute of disk 1 and point of contact tangent the circular arc C I of scroll plate 1, R1For circular arc C I radius, β is correction angle, and β is also scroll plate
For 1 outer wall involute in the point C angle of spread, r is base radius.
Point C coordinates can be by equationObtain.
The first involute GH and the first circular arc HN are tangent, circle where the three-arc DM and circle where circular arc HN
Point of contact is F, the center of circle O of the first circular arc HN3, three-arc DM center of circle O2With point F on same straight line, described first
Circular arc HN N points and three-arc MD M points are connected by circular arc NM, the circular arc NM respectively with three-arc MD M points and
First circular arc HN N points are tangent, and the three-arc MD and the second involute are tangent.
Equation of a circle where the three-arc MD of scroll plate 1 is：(x-xo2)2+(y-yo2)2=R2 2, wherein：xO2、yO2For circle
Arc MD center of circle O2Abscissa and ordinate, R2For circular arc DM radius.
xO2、yO2By equation groupObtain, xD、yDFor point D coordinates.Point D is scroll plate
1 inwall involute and the tangent point of contacts of three-arc MD, R2For circular arc MD radius, R2Meet relation R1+R2=2r, β are amendment
Angle, β+π be the inwall involute of scroll plate 1 in the point D angle of spread, r is base radius；
Point D coordinates can be by equationObtain.
A kind of vortex disc of vortex expander, the DM sections of scroll molded line are meshing profile, and scroll molded line MNHGIC does not join part
With engaging for scroll plate 1, non-fully to engage scroll molded line, the time that air admission hole is blocked can be reduced when scroll plate 1 rotates
And area, so as to reduce inlet loss, greatly improve scroll expander pneumatic power transformation efficiency.
Listed above is only one of specific embodiment of the present invention.It is clear that the invention is not restricted to above example, may be used also
To there is many similar reshapings.What one of ordinary skill in the art directly can export or associate from present disclosure
All deformations, are considered as invention which is intended to be protected.
Claims (5)
- A kind of 1. vortex disc of vortex expander, it is characterised in that：Scroll plate center initiating terminal is circular arc, and scroll plate outer wall is Involute that is tangent with the circular arc the outer end point of scroll plate center initiating terminal and stretching out, scroll plate inwall be with scroll plate End points is tangent in the circular arc of heart initiating terminal and the composite curve that stretches out, and the composite curve is by smoothing junction straight successively Line segment IG, the first involute GH, the first circular arc HN, the second circular arc NM, three-arc MD and the second involute are formed, and second gradually opens Line is the involute that tooth tail is extended to since point D；The straightway IG is connection circular arc C I and the first involute GH Common tangent, point of contact are point I and point G；During the scroll plate normal work, scroll molded line MNHGIC is not involved in the engagement of scroll plate.
- A kind of 2. vortex disc of vortex expander as claimed in claim 1, it is characterised in that：The scroll plate outer wall involute-type Equation be：Wherein：R is base radius,For the circle involute angle of spread, β is correction angle,For the scroll plate outer wall molded line tooth tail The exhibition angle angle of destination county ,-α are that angle occurs for circle involute, and α is positive number；The equation of involute-type is where scroll plate inwall the first involute GH and the second involute：Wherein：R is base radius,For the circle involute angle of spread, α is that angle occurs for circle involute.
- A kind of 3. vortex disc of vortex expander as claimed in claim 1, it is characterised in that：Circle where the scroll plate circular arc C I Equation is：(x-xO1)2+(y-yO1)2=R1 2,Wherein：xO1、yO1For circular arc C I center of circle O1Abscissa and ordinate, R1For circular arc C I radius；xO1、yO1Can be by equation groupObtain, xC、yCFor point C coordinates, point C is scroll plate outer wall Involute and point of contact tangent scroll plate circular arc C I, R1For circular arc C I radius, β is correction angle, and β also gradually opens for scroll plate outer wall For line in the point C angle of spread, r is base radius；Point C coordinates can be by equationObtain.
- A kind of 4. vortex disc of vortex expander as claimed in claim 1, it is characterised in that：The first involute GH and first Circular arc HN is tangent, and the point of contact of circle and circle where circular arc HN is F where the three-arc DM, the center of circle of the first circular arc HN O3, three-arc DM center of circle O2With point F on same straight line, the N points of the first circular arc HN and three-arc MD M points It is connected by circular arc NM, the circular arc NM is tangent with three-arc MD M points and the first circular arc HN N points respectively, and the described 3rd Circular arc MD and the second involute are tangent.
- A kind of 5. vortex disc of vortex expander as claimed in claim 1, it is characterised in that：The scroll plate three-arc MD institutes It is in equation of a circle：(x-xo2)2+(y-yo2)2=R2 2,Wherein：xO2、yO2For circular arc MD center of circle O2Abscissa and ordinate, R2For circular arc DM radius；xO2、yO2By equation groupObtain, xD、yDFor point D coordinates, point D is scroll plate inwall Involute and the tangent point of contacts of three-arc MD, R2For circular arc MD radius, R2Meet relation R1+R2=2r, β are correction angle, β+ π be scroll plate inwall involute in the point D angle of spread, r is base radius；Point D coordinates are by equationObtain.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710331826X | 2017-05-12 | ||
| CN201710331826 | 2017-05-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107829784A true CN107829784A (en) | 2018-03-23 |
| CN107829784B CN107829784B (en) | 2020-03-27 |
Family
ID=61643850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710826542.8A Active CN107829784B (en) | 2017-05-12 | 2017-09-14 | Vortex disk of vortex expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107829784B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101389828A (en) * | 2006-02-23 | 2009-03-18 | 松下电器产业株式会社 | Scroll expansion machine and refrigeration cycle apparatus |
| CN102493848A (en) * | 2011-12-23 | 2012-06-13 | 山东大学 | Vortex disc of vortex expander |
| CN104121197A (en) * | 2013-12-05 | 2014-10-29 | 柳州易舟汽车空调有限公司 | Scroll plate |
| CN105298545A (en) * | 2015-11-16 | 2016-02-03 | 兰州理工大学 | Scroll plate of scroll expansion machine |
-
2017
- 2017-09-14 CN CN201710826542.8A patent/CN107829784B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101389828A (en) * | 2006-02-23 | 2009-03-18 | 松下电器产业株式会社 | Scroll expansion machine and refrigeration cycle apparatus |
| CN102493848A (en) * | 2011-12-23 | 2012-06-13 | 山东大学 | Vortex disc of vortex expander |
| CN104121197A (en) * | 2013-12-05 | 2014-10-29 | 柳州易舟汽车空调有限公司 | Scroll plate |
| CN105298545A (en) * | 2015-11-16 | 2016-02-03 | 兰州理工大学 | Scroll plate of scroll expansion machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107829784B (en) | 2020-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106438355B (en) | A kind of gradual change wall thickness scroll wrap engaged entirely | |
| CN206017138U (en) | A kind of oval arc-shaped roots rotor | |
| CN107178499B (en) | A kind of scroll machine discharge capacity molded line modification method | |
| CN104121197B (en) | Scroll plate | |
| CN104929942A (en) | Fully-meshed claw type rotor profile | |
| CN104632623B (en) | Double-stage compressor | |
| CN210218104U (en) | Variable cross-section scroll wrap of scroll compressor | |
| JP2006214352A (en) | Spiral rotator machine | |
| CN107829784A (en) | A kind of vortex disc of vortex expander | |
| CN108757452A (en) | A kind of flute profile of high pressure ratio double-screw compressor rotor | |
| CN108278208B (en) | Screw compressor rotor structure and variable frequency screw compressor with same | |
| CN101545488B (en) | End face tooth form of novel screw compressor | |
| CN105257537A (en) | Rotor end face flute profile of three-tooth screw compressor | |
| CN102493848B (en) | Vortex disc of vortex expander | |
| CN102022335B (en) | Rotor profiles of screw compressors | |
| CN210218105U (en) | Eccentric involute Roots rotor | |
| CN106194729B (en) | A kind of oval arc-shaped roots rotor | |
| CN209129850U (en) | A kind of three scroll wraps of screw compressor | |
| CN208380852U (en) | It is a kind of to use the modified vortex flute profile line structure of vortex compressor of asymmetric double circular arc | |
| CN108763791B (en) | Method for deducing scroll by using regular polygon involute equation of scroll air compressor | |
| CN109630407B (en) | A kind of pump rotor with biasing main circular arc and eight word tops | |
| CN206071868U (en) | A kind of gradual change wall thickness scroll wrap of full engagement | |
| CN109281832A (en) | A kind of three scroll wraps and its meshing profile design method of screw compressor | |
| CN205172940U (en) | Tridentate helical -lobe compressor's rotor terminal surface flute profile | |
| CN109441805A (en) | A kind of the binary vortices tooth and its meshing profile design method of screw compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |