CN205744430U - A kind of screw compressor - Google Patents
A kind of screw compressor Download PDFInfo
- Publication number
- CN205744430U CN205744430U CN201620613753.4U CN201620613753U CN205744430U CN 205744430 U CN205744430 U CN 205744430U CN 201620613753 U CN201620613753 U CN 201620613753U CN 205744430 U CN205744430 U CN 205744430U
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- exhaust
- screw compressor
- air vent
- exhaust space
- exhaust gear
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Abstract
This utility model provides a kind of screw compressor, and described screw compressor includes: housing, and described housing includes a protecgulum；Electric machine assembly, is arranged in described housing, and described electric machine assembly includes a bent axle；Movable orbiting scroll, is arranged in described housing, is connected with described bent axle；Fixed scroll, is arranged in described housing, connects formation one discharge chamber, and formation one compression chamber that matches with described movable orbiting scroll with described protecgulum；Exhaust gear, it is arranged on described fixed scroll and/or described protecgulum, described exhaust gear has an inlet end and an outlet side, gas is flowed to described outlet side by described inlet end, described exhaust gear includes: air vent, being positioned at the inlet end of described exhaust gear, described air vent includes first exhaust space and is formed at the second exhaust space in outside in described first exhaust space；Steam vent, is positioned at the outlet side of described exhaust gear, and connects described air vent.
Description
Technical field
This utility model relates to field of air conditioning, in particular it relates to a kind of screw compressor.
Background technology
Typically, hermetic compressor includes the motor for producing driving force in the inner space of housing, Yi Jilian
Receive described motor for compressing the compression member of cold-producing medium.Hermetic compressor can be according to the difference of refrigerant compression mechanism
And it is categorized as reciprocating compressor, scroll compressor, rolling rotor compressor.Reciprocating compressor, scroll compressor
And rolling rotor compressor is all the revolving force utilizing motor.
Exhaust gear offer the performance to compressor and efficiency plays conclusive effect.Theoretical at screw compressor and
In engineering design, exhaust gear is extremely complex the most crucial, and it is offered generally by fixed scroll and the type of the scroll wrap of movable orbiting scroll
The restriction of the factors such as line type, elementary structure parameter and tooth head shapes.In existing screw compressor, exhaust gear includes
Steam vent and the air vent connected with steam vent.The cross section of steam vent and air vent is circle, steam vent and air vent
Bearing of trend parallel with the bearing of trend of the bent axle of screw compressor, whole exhaust gear is the most cylindrical (can be found in Fig. 5
With the exhaust gear 5 ' in Fig. 6).
Owing to, during actual motion, movable orbiting scroll tooth head has situation about blocking to exhaust gear so that exhauster
Structure is in the rotation process of movable orbiting scroll, and the dynamic area of unlatching is continually changing, and this situation can be to the gas flow rate of exhaust gear
Large effect is produced, accordingly, it would be desirable to the shape offering exhaust gear carries out deep probing into capacity.
Utility model content
For defect of the prior art, the purpose of this utility model is to provide a kind of screw compressor.
According to one side of the present utility model, it is provided that a kind of screw compressor, described screw compressor includes: housing, institute
State housing and include a protecgulum；Electric machine assembly, is arranged in described housing, and described electric machine assembly includes a bent axle；Movable orbiting scroll, is arranged
In described housing, it is connected with described bent axle；Fixed scroll, is arranged in described housing, and to connect shape in a row with described protecgulum
Air cavity, and formation one compression chamber that matches with described movable orbiting scroll；Exhaust gear, is arranged at described fixed scroll and/or described protecgulum
On, described exhaust gear has an inlet end and an outlet side, and gas is flowed to described outlet side by described inlet end, described row
Mechanism of qi structure includes: air vent, is positioned at the inlet end of described exhaust gear, and described air vent includes first exhaust space and formation
Second exhaust space in the outside in described first exhaust space；Steam vent, is positioned at the outlet side of described exhaust gear, and connection
Described air vent.
Preferably, the bearing of trend in described first exhaust space is parallel with the bearing of trend of described bent axle.
Preferably, described air vent includes that two second exhaust spaces, two second exhaust spaces lay respectively at described
The both sides of one exhaust space.
Preferably, the sidewall in each described second exhaust space is sector.
Preferably, described second exhaust space is progressively passed along direction, the outlet side cross sectional dimensions of described exhaust gear
Increase.
Preferably, a second exhaust space of the sidewall of described steam vent and at least side, described first exhaust space
Sidewall is 180 degree of linkings.
Preferably, the bearing of trend of described steam vent has angle with the bearing of trend shape in described first exhaust space.
Preferably, the bearing of trend of described steam vent with the angle of the bearing of trend formation in described first exhaust space is
30 °～60 °
Preferably, described exhaust gear is arranged in described fixed scroll, and described air vent connects described discharge chamber, described row
Pore connects described compression chamber.
Preferably, described exhaust gear is arranged on described protecgulum, and described steam vent connects described discharge chamber, described aerofluxus
Mouth leads to outside described screw compressor.
The air vent of the exhaust gear in screw compressor of the present utility model is by the basis of first exhaust space
Adding second exhaust space, wherein, the size in first exhaust space is equivalently-sized with the air vent of existing screw compressor, because of
This, compared to existing technology in screw compressor increase the size of air vent, and then, increase air vent open area and
Breath runner, accelerates the unlatching speed of air vent, reduces discharge loss.Additionally, due to increase the size of air vent, for
Reduce the noise produced owing to gases at high pressure produce flow-disturbing when discharging at the steam vent side wall angle with air vent, carry
The operational efficiency of high compressor, therefore, the fixed scroll aerofluxus in the most existing screw compressor of steam vent in this utility model
Hole is obliquely installed, and the sidewall at least one second exhaust space of its sidewall is 180 degree of linkings, so that gases at high pressure can be faster
Discharge fast, clear and coherently, reduce and produce noise owing to gases at high pressure change direction when discharging because of resistance, and also improve pressure
The efficiency of contracting machine.On this basis, the cross section in second exhaust space is preferably in sector, and then has good processing work
Skill, it is simple to the formation of exhaust gear of the present utility model.
Accompanying drawing explanation
The detailed description with reference to the following drawings, non-limiting example made by reading, other spy of the present utility model
Levy, purpose and advantage will become more apparent upon:
Fig. 1 a is the sectional view of the screw compressor of first embodiment of the present utility model；
Fig. 1 b is the sectional view after movable orbiting scroll in Fig. 1 a, fixed scroll and protecgulum assembling；
Fig. 2 a is the sectional view of the fixed scroll of the screw compressor of first embodiment of the present utility model；
Fig. 2 b is the partial enlarged drawing of the exhaust gear in Fig. 2 a in fixed scroll；
Fig. 3 a is the top view of the fixed scroll of the screw compressor of first embodiment of the present utility model；
Fig. 3 b is the partial enlarged drawing of the exhaust gear of fixed scroll in Fig. 3 a；
Fig. 4 is the sectional view of the protecgulum of the screw compressor of first embodiment of the present utility model；
Fig. 5 is the sectional view of the screw compressor of the second embodiment of the present utility model；And
Fig. 6 is the sectional view of the screw compressor of the 3rd embodiment of the present utility model.
Reference
11 frames
12 protecgulums
13 bonnets
2 electric machine assemblies
21 bent axles
22 internal rotors
23 external stators
3 movable orbiting scrolls
4 fixed scroll
5,5 ' exhaust gear
51 air vents
511 first exhaust spaces
512 second exhaust spaces
52 steam vents
6 discharge chambers
7 compression chambers
Detailed description of the invention
Hereinafter embodiment of the present utility model will be provided detailed description.Although this utility model will be concrete in conjunction with some
Embodiment is illustrated and illustrates, but it should be noted that this utility model is not merely confined to these embodiments.
On the contrary, the amendment carrying out this utility model or equivalent, all should contain and work as at right of the present utility model
In.
It addition, in order to better illustrate this utility model, detailed description of the invention below give numerous concrete
Details.It will be understood by those skilled in the art that do not have these details, this utility model is equally implemented.At other
In example, known structure and parts are not described in detail, in order to highlight purport of the present utility model.
First embodiment
Referring to Fig. 1 a and Fig. 1 b, Fig. 1 a shows the section view of the screw compressor of first embodiment of the present utility model
Figure, Fig. 1 b shows the sectional view after movable orbiting scroll in Fig. 1 a, fixed scroll and protecgulum assembling.At the preferred embodiment shown in Fig. 1 a
In, described screw compressor includes: housing, electric machine assembly 2, movable orbiting scroll 3, fixed scroll 4 and exhaust gear 5.
Housing includes a frame 11, protecgulum 12 and bonnet 13.As shown in Figure 1a, protecgulum 12 is arranged at the one of frame 11
End, bonnet 13 is arranged at the other end of frame 11.
Electric machine assembly 2 is arranged in housing 1.As shown in Figure 1a, electric machine assembly 2 includes the internal rotor being sheathed on bent axle 21
22 and external stator 23.External stator 23 is fixed with housing 1.Internal rotor 22 is inserted in external stator 23, at internal rotor 22 and external stator
There is between 23 predetermined gap, and then rotate this internal rotor 22 by the interaction with external stator 23.Bent axle 21 with interior turn
Son 22 is connected.
Movable orbiting scroll 3 is arranged in housing 1, is connected with bent axle 21.Bent axle 21 drives movable orbiting scroll 3 to synchronize while rotating
Rotate.
As shown in Figure 1 b, fixed scroll 4 is arranged in housing 1, mutually connects with protecgulum 12, forms a discharge chamber 6.And quiet whirlpool
Dish 4 also matches with movable orbiting scroll 3 and forms a compression chamber 7, and the gas in compression chamber is compressed after rotating by movable orbiting scroll 3, compression
After gas be formed in compression chamber 7, and then discharge screw compressor through discharge chamber 6 from protecgulum 12.
Exhaust gear 5 is arranged on fixed scroll 4 and/or protecgulum 12.Specifically, being preferable to carry out shown in Fig. 1 a and 1b
In example, exhaust gear 5 is arranged on fixed scroll 4 and protecgulum 12, is i.e. equipped with exhaust gear 5 on fixed scroll 4 and protecgulum 12.Below
First illustrate as a example by the exhaust gear 5 in fixed scroll 4.
Refer to the fixed scroll that Fig. 2 a to Fig. 3 b, Fig. 2 a shows the screw compressor of first embodiment of the present utility model
Sectional view, Fig. 2 b is the partial enlarged drawing of the exhaust gear of fixed scroll in Fig. 2 a；Fig. 3 a shows of the present utility model first
The top view of the fixed scroll of the screw compressor of embodiment, Fig. 3 b shows the partial enlargement of the exhaust gear of fixed scroll in Fig. 3 a
Figure.As shown in Figure 2 a, fixed scroll 4 is provided with exhaust gear 5.Exhaust gear 5 has an inlet end and an outlet side, and gas is by institute
State inlet end to flow to described outlet side.Specifically, exhaust gear 5 includes: air vent 51 and steam vent 52.
Air vent 51 is positioned at the inlet end of exhaust gear 5.Air vent 51 includes that first exhaust space 511 (can be found in Fig. 2 b
The region surrounded with dotted line in Fig. 3 b) and it is formed at the second exhaust space 512 in outside in first exhaust space 511.Wherein,
The bearing of trend (in Fig. 2 b, the direction of X-axis is the bearing of trend in first exhaust space 511) in first exhaust space 511 and bent axle
The bearing of trend of 21 is parallel.In the embodiment shown in Fig. 2 b and Fig. 3 b, air vent 51 includes two second exhaust spaces 512,
Two second exhaust spaces 512 lay respectively at the both sides in first exhaust space 511.First exhaust space 511 and two second rows
The sidewall area defined of headroom 512 forms air vent 51.The sidewall in each second exhaust space 512 is substantially in sector
(can be in conjunction with reference to Fig. 2 b and Fig. 3 b).Second exhaust space 512 along exhaust gear 5 direction, outlet side cross sectional dimensions by
Step is incremented by.(can be found in Fig. 2 b).It should be noted that cross section herein refers to and the plane in top view shown in Fig. 3 a and 3b
Parallel cross section.
It should be noted that the air vent of the fixed scroll in the size in first exhaust space 511 and existing screw compressor
Equivalently-sized.Owing to the air vent 51 of the exhaust gear 5 of screw compressor of the present utility model also includes second exhaust space
512, therefore, the size of the air vent 51 of the exhaust gear 5 of screw compressor of the present utility model compares existing screw compressor
In the size of air vent of fixed scroll increase, and then increase breath runner, reduce discharge loss.
Steam vent 52 is connected with air vent 51.Specifically, the sidewall of steam vent 52 is with first exhaust space 511 at least
The sidewall in one second exhaust space 512 of side is that 180 degree of linkings are (with the side in the second exhaust space 512 in left side in Fig. 2 b
Wall is 180 degree of linkings) so that gases at high pressure can be discharged more rapid, clear and coherently, reduce due to gases at high pressure discharge time because of
Resistance and change direction produce noise.In the embodiment shown in Fig. 2 b and Fig. 3 b, in order to make the sidewall and first of steam vent 52
The sidewall in one second exhaust space 512 of exhaust space 511 at least side is 180 degree of linkings, the bearing of trend of steam vent 52
(in Fig. 2 b, the direction of Y-axis is the bearing of trend of steam vent 52) has angle with the bearing of trend shape in first exhaust space 511.
Above-mentioned angle is preferably 30 °～60 °.Preferably, along the bearing of trend of steam vent 52, the aperture of steam vent 52 is identical
, i.e. vertical with the bearing of trend of steam vent 52 area of section is equal.In the size of steam vent 52 and existing screw compressor
The steam vent size of fixed scroll roughly the same, can be considered and formed after the fixed scroll steam vent in existing screw compressor is tilted
's.
It should be noted that owing to the flow direction of the exhaust gear 5 mesohigh gas of described screw compressor is by its air inlet
End flows to its outlet side, i.e. flows into from steam vent 52, discharges from air vent 51, and in this embodiment, exhaust gear 5 is arranged at
In fixed scroll 4, gases at high pressure are to be formed in compression chamber 7 after movable orbiting scroll 3 rotates, and flow to discharge chamber 6, therefore, and quiet whirlpool
The set-up mode of the exhaust gear 5 on dish 4 is that steam vent 52 connects compression chamber 7, and air vent 51 connects discharge chamber 6.
Refer to Fig. 4, it illustrates the sectional view of the protecgulum of the screw compressor of first embodiment of the present utility model.As
Shown in Fig. 4, protecgulum 12 also is provided with above-mentioned exhaust structure.And the structure of the exhaust gear 5 being arranged on protecgulum 12 be arranged at
Exhaust gear 5 structure in described fixed scroll 4 is identical.Different from the exhaust gear in the fixed scroll 4 shown in above-mentioned Fig. 2 and Fig. 3
Part is, owing to gases at high pressure are to be discharged, therefore, on protecgulum 12 outside screw compressor by protecgulum 12 from discharge chamber 6
The set-up mode of exhaust gear 5 be that steam vent 52 connects discharge chamber 6, and air vent 52 leads to outside described screw compressor.
Second embodiment
Refer to Fig. 5, it illustrates the sectional view of the screw compressor of the second embodiment of the present utility model.Such as Fig. 5 institute
Showing, unlike the first embodiment shown in above-mentioned Fig. 1, in described screw compressor, only fixed scroll 4 is provided with above-mentioned row
Mechanism of qi structure 5, and (the most whole exhaust gear 5 ' is substantially in cylinder to remain set to exhaust gear 5 ' of the prior art on protecgulum 12
Shape, and its bearing of trend is parallel with the direction of bent axle 21).In this embodiment, only above-mentioned fixed scroll 4 is improved.Should
Embodiment is equally achieved, and it will not go into details herein.
3rd embodiment
Refer to Fig. 6, it illustrates the sectional view of the screw compressor of the 3rd embodiment of the present utility model.Such as Fig. 6 institute
Showing, unlike the first embodiment shown in above-mentioned Fig. 1, in described screw compressor, only protecgulum 12 is provided with above-mentioned aerofluxus
Mechanism 5, and (the most whole exhaust gear 5 ' is substantially in cylinder to remain set to exhaust gear 5 ' of the prior art in fixed scroll 4
Shape, and its bearing of trend is parallel with the direction of bent axle 21).In this embodiment, only above-mentioned protecgulum 12 is improved.This is real
Executing example to be equally achieved, it will not go into details herein.
In summary, the air vent of the exhaust gear in the screw compressor of the present utility model base in first exhaust space
Second exhaust space is added on plinth, wherein, the air vent size phase of the size in first exhaust space and existing screw compressor
With, therefore, compared to existing technology in screw compressor increase the size of air vent, and then, increase the unlatching of air vent
Area and breath runner, accelerate the unlatching speed of air vent, reduce discharge loss.
Additionally, due to increase the size of air vent, in order to reduce due to gases at high pressure discharge time steam vent and row
The noise producing flow-disturbing at the side wall angle of QI KOU and produce, improves the operational efficiency of compressor, therefore, in this utility model
Fixed scroll steam vent in the most existing screw compressor of steam vent is obliquely installed, at least one second exhaust space of its sidewall
Sidewall is 180 degree of linkings, so that gases at high pressure can be discharged more rapid, clear and coherently, reduces owing to gases at high pressure are when discharging
Change direction because of resistance and produce noise, and also improve the efficiency of compressor.
On this basis, the cross section in second exhaust space is preferably in sector, and then has good processing technique
Property, it is simple to the formation of exhaust gear of the present utility model.
Claims (10)
1. a screw compressor, it is characterised in that described screw compressor includes:
Housing, described housing includes a protecgulum；
Electric machine assembly, is arranged in described housing, and described electric machine assembly includes a bent axle；
Movable orbiting scroll, is arranged in described housing, is connected with described bent axle；
Fixed scroll, is arranged in described housing, connects formation one discharge chamber, and the shape that matches with described movable orbiting scroll with described protecgulum
Become a compression chamber；
Exhaust gear, is arranged on described fixed scroll and/or described protecgulum, and described exhaust gear has an inlet end and and gives vent to anger
End, gas is flowed to described outlet side by described inlet end, and described exhaust gear includes:
Air vent, is positioned at the inlet end of described exhaust gear, and described air vent includes first exhaust space and is formed at described
The second exhaust space in the outside in first exhaust space；
Steam vent, is positioned at the outlet side of described exhaust gear, and connects described air vent.
Screw compressor the most according to claim 1, it is characterised in that the bearing of trend in described first exhaust space and institute
The bearing of trend stating bent axle is parallel.
Screw compressor the most according to claim 2, it is characterised in that described air vent includes two second exhaust skies
Between, two second exhaust spaces lay respectively at the both sides in described first exhaust space.
Screw compressor the most according to claim 3, it is characterised in that the sidewall in each described second exhaust space is fan
Shape.
Screw compressor the most according to claim 3, it is characterised in that described second exhaust space is along described exhauster
Direction, the outlet side cross sectional dimensions of structure is progressively incremented by.
Screw compressor the most according to claim 5, it is characterised in that the sidewall of described steam vent and described first exhaust
The sidewall in one second exhaust space of at least side, space is 180 degree of linkings.
Screw compressor the most according to claim 6, it is characterised in that the bearing of trend of described steam vent and described first
The bearing of trend shape of exhaust space has angle.
Screw compressor the most according to claim 7, it is characterised in that the bearing of trend of described steam vent and described first
The angle that the bearing of trend of exhaust space is formed is 30 °～60 °.
Screw compressor the most according to any one of claim 1 to 8, it is characterised in that described exhaust gear is arranged at
In described fixed scroll, described air vent connects described discharge chamber, and described steam vent connects described compression chamber.
Screw compressor the most according to any one of claim 1 to 8, it is characterised in that described exhaust gear is arranged at
On described protecgulum, described steam vent connects described discharge chamber, and described air vent leads to outside described screw compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620613753.4U CN205744430U (en) | 2016-06-21 | 2016-06-21 | A kind of screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620613753.4U CN205744430U (en) | 2016-06-21 | 2016-06-21 | A kind of screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205744430U true CN205744430U (en) | 2016-11-30 |
Family
ID=57384541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620613753.4U Active CN205744430U (en) | 2016-06-21 | 2016-06-21 | A kind of screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205744430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374788A (en) * | 2018-05-03 | 2018-08-07 | 宁波汇峰聚威科技股份有限公司 | A kind of change displacement scroll compressor |
-
2016
- 2016-06-21 CN CN201620613753.4U patent/CN205744430U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374788A (en) * | 2018-05-03 | 2018-08-07 | 宁波汇峰聚威科技股份有限公司 | A kind of change displacement scroll compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171009 Address after: 201206, Shanghai Pudong New Area Free Trade Zone pilot Bridge Road 888, 2 blocks of a A zone, 16 B district and C District Patentee after: Shanghai Lixin Energy Technology Co. Ltd Address before: 201206 Pudong New Area Jinqiao Export Processing Zone, Nanjing Road, No. 888, Shanghai Patentee before: Rili Electric Appliance Co., Ltd., Shanghai |