CN109538472A - The method of the volume of screw compressor and air conditioner and reduction screw compressor - Google Patents
The method of the volume of screw compressor and air conditioner and reduction screw compressor Download PDFInfo
- Publication number
- CN109538472A CN109538472A CN201910081733.5A CN201910081733A CN109538472A CN 109538472 A CN109538472 A CN 109538472A CN 201910081733 A CN201910081733 A CN 201910081733A CN 109538472 A CN109538472 A CN 109538472A
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- China
- Prior art keywords
- fixed scroll
- shell
- screw compressor
- molded line
- orbiter
- 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
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000006835 compression Effects 0.000 abstract description 9
- 238000007906 compression Methods 0.000 abstract description 9
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids 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
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids 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 both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids 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 both members having co-operating elements in spiral form where only one member is moving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids 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
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids 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 both members having co-operating elements in spiral form
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0269—Details concerning the involute wraps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
This application provides a kind of screw compressor and air conditioner and the methods for the volume for reducing screw compressor.The screw compressor includes shell and is arranged in the intracorporal fixed scroll of shell and orbiter, central axes eccentric setting of the molded line center of fixed scroll relative to shell.The technical solution of application invention, pass through the central axes eccentric setting by the molded line center of fixed scroll relative to shell, being equivalent to can be mobile towards the wasted space other than compression chamber together with orbiter by fixed scroll, can so reduce shell, reduce the overall volume of screw compressor.In turn, so that the screw compressor of same displacement is smaller, lighter, cost is lower.
Description
Technical field
The present invention relates to Compressor Technology fields, in particular to a kind of screw compressor and air conditioner and reduce whirlpool
Revolve the method for the volume of compressor.
Background technique
Traditional screw compressor orbiter and fixed scroll generally generate scrollwork molded line using the involute of circle, pass through
Scrollwork molded line is intermeshed to form each compression chamber.The shape of compressor is generally circular, and its radius size have to be larger than it is quiet
Distance of the scroll plate scrollwork molded line outer most edge to molded line center.Since involute outer rim is eccentrical shape, cause to exist in the pump housing
Big quantity space is not used, and compressor size is larger.
Summary of the invention
The embodiment of the invention provides a kind of screw compressor and air conditioner and reduce screw compressor volume method,
To solve to have complete machine body caused by the space being largely not used in the pump housing existing for screw compressor in the prior art
The big technical problem of product.
The application embodiment provides a kind of screw compressor, including shell and setting the intracorporal fixed scroll of shell with
And orbiter, central axes eccentric setting of the molded line center of fixed scroll relative to shell.
In one embodiment, the distance between the molded line center of fixed scroll and the central axes of shell be D, D <
0.6E/2, wherein E/2 is offset eccentricity of the fixed scroll relative to orbiter.
In one embodiment, the molded line center of the orbiter at the end of the outermost suction chamber air-breathing of fixed scroll
Line with the molded line center of fixed scroll is a, and the vertical line between the molded line center of fixed scroll and the central axes of shell is b, a
Angle between b is γ, 0 ° < γ < 270 °.
In one embodiment, 180 ° < γ < 270 °.
In one embodiment, the molded line of fixed scroll is involute shape, correspondingly the molded line of orbiter
For involute shape.
Present invention also provides a kind of air conditioner, including screw compressor, screw compressor is above-mentioned spiral
Compressor.
Present invention also provides a kind of methods of volume for reducing screw compressor, and screw compressor includes shell and setting
In the intracorporal fixed scroll of shell and orbiter, method includes: the axis by the molded line center of fixed scroll relative to shell
Line eccentric setting.
In one embodiment, the distance between the molded line center of fixed scroll and the central axes of shell be D, D <
0.6E/2, wherein E/2 is offset eccentricity of the fixed scroll relative to orbiter.
In one embodiment, the molded line center of the orbiter at the end of the outermost suction chamber air-breathing of fixed scroll
Line with the molded line center of fixed scroll is a, and the vertical line between the molded line center of fixed scroll and the central axes of shell is b, a
Angle between b is γ, 0 ° < γ < 270 °.
In one embodiment, 180 ° < γ < 270 °.
In the above-described embodiments, pass through the central axes eccentric setting by the molded line center of fixed scroll relative to shell, phase
When can so reduce in can be mobile towards the wasted space other than compression chamber together with orbiter by fixed scroll
Shell reduces the overall volume of screw compressor.In turn, so that the screw compressor of same displacement is smaller, lighter, cost is more
It is low.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.
In the accompanying drawings:
Fig. 1 is the structural schematic diagram according to screw compressor in the prior art；
Fig. 2 is the structural schematic diagram of screw compressor according to the present invention；
Fig. 3 is the present invention and comparative example spin moment comparison diagram；
Fig. 4 is the present invention and comparative example spin moment fluctuation comparison diagram；
Fig. 5 is the present invention and comparative example discharge capacity comparison diagram.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right below with reference to embodiment and attached drawing
The present invention is described in further details.Here, exemplary embodiment and its explanation of the invention is used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
Traditional screw compressor is as shown in Figure 1, the molded line of its fixed scroll 20 ' and the molded line of orbiter 30 ' are circle
Involute.Specifically, in the coordinate system, 20 ' curved dies of fixed scroll are as follows:
X=A*cos (φ+β)+A* φ * sin (φ+β)
Y=A*sin (φ+β)-A* φ * cos (φ+β)
Wherein: A is base radius, and φ is that involute opens up angle, and β is that angle occurs for involute, by choosing suitable A, β value can
To form outside molded line in scrollwork.By the molded line turnback of fixed scroll 20 ', and deviate eccentricity (E/2), can be formed with
The molded line of the intermeshing orbiter 30 ' of the molded line of fixed scroll 20 '.In the mistake that drive shaft drives orbiter 30 ' to operate
Cheng Zhong, formed can continuous compression compression chamber 40 '.The molded line center of fixed scroll 20 ' and the central axes 10a ' of shell 10 ' are mutually be overlapped
It closes, orbiter 30 ' is moved along track 10b ', completes air-breathing-compression-air-breathing circulation.Since involute is eccentrical shape, pump
The minimized case 10 ' of body has to be larger than 20 ' scrollwork molded line outer most edge of fixed scroll to the distance at molded line center, causes in compression chamber
There are a large amount of wasted space S in region in addition.
As shown in Fig. 2, the screw compressor includes shell 10 and is arranged in shell the present invention provides a kind of screw compressor
The molded line center of fixed scroll 20 and orbiter 30 in body 10, fixed scroll 20 is eccentric relative to the central axes of shell 10
Setting.
The technical solution of application invention, by the way that the molded line center of fixed scroll 20 is eccentric relative to the central axes of shell 10
Setting, being equivalent to can be mobile towards the wasted space other than compression chamber together with orbiter 30 by fixed scroll 20, and such one
Shell 10 can be reduced, the overall volume of screw compressor is reduced.In turn, so that the screw compressor of same displacement more
Small, lighter, cost is lower.
It should be noted that the central axes of the shell 10 and the concentric setting of drive shaft.
Using above-mentioned technical solution, since fixed scroll 20 is inclined relative to the central axes of shell 10 together with orbiter 30
Heart setting, so orbiter 30 will be relative to driving eccentric shaft.During operating, the resistance of compressed gas generation
Power can make orbiter 30 form the spin moment rotated around drive shaft eccentric part, in order to inhibit rotation, usually within the compressor
The anti-Self-rotation structures such as cross slip-ring are set.If the molded line off-centring of fixed scroll 20 and orbiter 30 is excessive, rotation
Torque and its fluctuation will increase, and influence the reliability of anti-rotation component.
Therefore, in the inventive solutions, by comprehensively consider fixed scroll 20 together with orbiter 30 relative to
The whole body that the central axes bias bring spin moment of shell 10, fluctuation increase and reduce shell 10, reduce screw compressor
Relationship between product can reduce shell 10, reduction whirlpool meeting through overtesting discovery when eccentric distance meets following relationship
On the basis of the overall volume for revolving compressor, it is inclined relative to the central axes of shell 10 together with orbiter 30 to take into account fixed scroll 20
The problem of heart bring spin moment, fluctuation increase.
The distance between molded line center of fixed scroll 20 and the central axes of shell 10 are D, D < 0.6E/2, and wherein E/2 is
Offset eccentricity of the fixed scroll 20 relative to orbiter 30.
Specifically, in an embodiment of the present invention, choosing D=0.4E/2.In traditional comparative example, D=0 is chosen, and
D=0.7E/2 is chosen in the comparative example.As shown in Figure 3 and Figure 4, as offset distance D=0.7E/2, spin moment fluctuation is to pass
The 250% of structure of uniting seriously affects the stability and reliability of orbiter operating.And in an embodiment of the present invention, D=
0.4E/2, spin moment fluctuation is suitable with traditional structure, can also play good diminution shell 10, reduce screw compressor work
With.
In addition, in the inventive solutions, by the molded line center for fixed scroll 20 relative to shell 10
The research of central axes eccentric direction finds different eccentric directions under the limitation of identical structure size, for reducing shell
10, the effect for reducing screw compressor is different.Through overtesting and research, meet following conditions, can obtain better
Reduce shell 10, reduce screw compressor effect.
The molded line center of orbiter 30 at the end of the outermost suction chamber air-breathing of fixed scroll 20 and fixed scroll 20
The line at molded line center be a, vertical line between the molded line center of fixed scroll 20 and the central axes of shell 10 be b, a and b it
Between angle be γ, 0 ° < γ < 270 °.As shown in Fig. 2, in the technical solution of the present embodiment, γ=174 °.Other optional
Embodiment in, the angle of γ value is all feasible between a to b '.
More preferably, 180 ° < γ < 270 °.
As shown in figure 5, comparing different deviation angles under the limitation of identical structure size, the present invention can be obviously improved
Space utilization rate can also promote compressor displacement.
Using technical solution of the present invention, the pump housing can be utmostly utilized on the basis of maintaining spin moment fluctuation
Space.
It should be noted that the molded line that technical solution of the present invention is suitable for fixed scroll 20 is the feelings of involute shape
Shape, correspondingly the molded line of orbiter 30 is also involute shape.
Specifically, in the scroll plate of involute shape:
The curved dies of fixed scroll are as follows (using shaft center as origin) in a coordinate system
X=A*cos (φ+β)+A* φ * sin (φ+β)+D*cos γ
Y=A*sin (φ+β)-A* φ * cos (φ+β)+D*sin γ
Due to the present invention and the shape and mutual alignment relation of dynamic and static scrollwork molded line are had not been changed, is still able to maintain and former
The identical engagement situation of molded line.
Above-mentioned involute in form is only a special case, and the present invention is also suitable the scrollwork that other type molded line are formed.
The present invention also provides a kind of air conditioner, which includes above-mentioned screw compressor.Using above-mentioned spiral shell
Compressor is revolved, shell 10 can be reduced, reduces the overall volume of screw compressor, and then reduce the overall volume of air conditioner.
The present invention also provides a kind of method of volume for reducing screw compressor, screw compressor includes shell 10 and sets
Set fixed scroll 20 and orbiter 30 in shell 10.Method include: by the molded line center of fixed scroll 20 relative to
The central axes eccentric setting of shell 10.Using this method, by by the molded line center of fixed scroll 20 relative in shell 10
Eccentric axis setting, being equivalent to can move fixed scroll 20 together with orbiter 30 towards the wasted space other than compression chamber
It is dynamic, shell 10 can be so reduced, the overall volume of screw compressor is reduced.In turn, so that the vortex of same displacement
Compressor is smaller, lighter, and cost is lower.
In the inventive solutions, by comprehensively considering fixed scroll 20 together with orbiter 30 relative to shell 10
Central axes bias bring spin moment, fluctuation increase and reduce shell 10, reduce screw compressor overall volume between
Relationship, through overtesting discovery when eccentric distance meets following relationship, can meet reduce shell 10, reduce scroll compression
On the basis of the overall volume of machine, takes into account central axes bias of the fixed scroll 20 together with orbiter 30 relative to shell 10 and bring
Spin moment, fluctuation increase the problem of.The distance between molded line center and the central axes of shell 10 of fixed scroll 20 are D, D
< 0.6E/2, wherein E/2 is offset eccentricity of the fixed scroll 20 relative to orbiter 30.
The molded line center of orbiter 30 at the end of the outermost suction chamber air-breathing of fixed scroll 20 and fixed scroll 20
The line at molded line center be a, vertical line between the molded line center of fixed scroll 20 and the central axes of shell 10 be b, a and b it
Between angle be γ, 0 ° < γ < 270 °.More preferably, 180 ° < γ < 270 °.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the embodiment of the present invention can have various modifications and variations.All within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of screw compressor, including shell (10) and the fixed scroll (20) being arranged in the shell (10) and dynamic whirlpool
Capstan (30), which is characterized in that the molded line center of the fixed scroll (20) is eccentric relative to the central axes of the shell (10)
Setting.
2. screw compressor according to claim 1, which is characterized in that the molded line center of the fixed scroll (20) and institute
Stating the distance between central axes of shell (10) is D, D < 0.6E/2, and wherein E/2 is fixed scroll (20) with respect to orbiter
(30) offset eccentricity.
3. screw compressor according to claim 2, which is characterized in that the outermost suction chamber of the fixed scroll (20)
The line at the molded line center at the molded line center and fixed scroll (20) of the orbiter (30) at the end of air-breathing is a,
Vertical line between the molded line center of the fixed scroll (20) and the central axes of the shell (10) is b, the angle between a and b
For γ, 0 ° < γ < 270 °.
4. screw compressor according to claim 3, which is characterized in that 180 ° < γ < 270 °.
5. screw compressor according to any one of claim 1 to 4, which is characterized in that the fixed scroll (20)
Molded line is involute shape, and correspondingly the molded line of the orbiter (30) is also involute shape.
6. a kind of air conditioner, including screw compressor, which is characterized in that the screw compressor is in claim 1 to 5
Described in any item screw compressors.
7. a kind of method for the volume for reducing screw compressor, the screw compressor include shell (10) and are arranged in the shell
Fixed scroll (20) and orbiter (30) in body (10), which is characterized in that the described method includes: by the fixed scroll
(20) central axes eccentric setting of the molded line center relative to the shell (10).
8. the method according to the description of claim 7 is characterized in that the molded line center of the fixed scroll (20) and the shell
(10) the distance between central axes are D, D < 0.6E/2, and wherein E/2 is that fixed scroll (20) are inclined with respect to orbiter (30)
Move eccentricity.
9. according to the method described in claim 8, it is characterized in that, the outermost suction chamber air-breathing knot of the fixed scroll (20)
The line at the molded line center at the molded line center and fixed scroll (20) of the orbiter (30) when beam is a, described quiet
Vertical line between the molded line center of scroll plate (20) and the central axes of the shell (10) is b, and the angle between a and b is γ, 0 °
<γ<270°。
10. according to the method described in claim 8, it is characterized in that, 180 ° < γ < 270 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910081733.5A CN109538472B (en) | 2019-01-28 | 2019-01-28 | Scroll compressor, air conditioner and method for reducing volume of scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910081733.5A CN109538472B (en) | 2019-01-28 | 2019-01-28 | Scroll compressor, air conditioner and method for reducing volume of scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109538472A true CN109538472A (en) | 2019-03-29 |
| CN109538472B CN109538472B (en) | 2024-06-21 |
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ID=65838679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910081733.5A Active CN109538472B (en) | 2019-01-28 | 2019-01-28 | Scroll compressor, air conditioner and method for reducing volume of scroll compressor |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100003873A (en) * | 2008-07-02 | 2010-01-12 | 학교법인 두원학원 | Scroll fluid machine |
| US20100021329A1 (en) * | 2007-02-27 | 2010-01-28 | Mitsubishi Heavy Industries, Ltd. | Scroll compressor |
| CN209469579U (en) * | 2019-01-28 | 2019-10-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Screw compressor and air conditioner |
-
2019
- 2019-01-28 CN CN201910081733.5A patent/CN109538472B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100021329A1 (en) * | 2007-02-27 | 2010-01-28 | Mitsubishi Heavy Industries, Ltd. | Scroll compressor |
| KR20100003873A (en) * | 2008-07-02 | 2010-01-12 | 학교법인 두원학원 | Scroll fluid machine |
| CN209469579U (en) * | 2019-01-28 | 2019-10-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Screw compressor and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109538472B (en) | 2024-06-21 |
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