CN206513564U - A kind of screw compressor - Google Patents
A kind of screw compressor Download PDFInfo
- Publication number
- CN206513564U CN206513564U CN201720091898.7U CN201720091898U CN206513564U CN 206513564 U CN206513564 U CN 206513564U CN 201720091898 U CN201720091898 U CN 201720091898U CN 206513564 U CN206513564 U CN 206513564U
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- China
- Prior art keywords
- air intake
- intake duct
- quiet disk
- screw compressor
- main shaft
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Abstract
The utility model discloses a kind of screw compressor, including housing, support is provided with housing, it is connected with main shaft, cross slip-ring and quiet disk on support in turn, main shaft and quiet disk are coaxial, and Jing Panshang is provided with several suction holes, air intake duct is inserted with each suction hole, it is provided with air intake duct on sealing ring, cross slip-ring and is provided with Moving plate, Moving plate coordinates centrally through capacity eccentric bearing and main shaft.A kind of screw compressor by the first air intake duct and the second air intake duct by entering suction muffler；The gas of first air intake duct primarily enters the first working chamber, the gas of second air intake duct primarily enters the second working chamber, eliminate interference of the Moving plate motion to air-breathing runner, reduce compressor air suction loss, working chamber inspiratory capacity is increased, compressor volumetric efficiency, and the inspiratory capacity and the symmetry of cavity pressure and temperature of two working chambers of guarantee is improved, reduction vibration, improves compressor operating stability.
Description
Technical field
The utility model belongs to Compressor Technology field, is related to a kind of screw compressor.
Background technology
Fully-closed vortex compressor has body light in a small amount, and volumetric efficiency is high, and exhaust is continuous, and torque is uniform, and noise is low excellent
Point and be widely used in refrigeration, chemical engineering industry, it is inflammable and explosive that it is mainly used to compression refrigerant, methane, hydrogen sulfide etc., with poison
The gas of property.It is characterized in the parts such as motor, main shaft, compressor head being all packaged in a sealed housing, only in shell
Air inlet pipe and escape pipe are reserved on body, so as to evade the dynamic sealing problem of compressor main shaft, it is ensured that the safety fortune of compressor
OK.But there is higher-pressure region and low-pressure area due to using in full-closed structure, housing, to avoid higher-pressure region from being leaked to low-pressure area, whirlpool
The suction muffler (low-pressure area) of rotation compressor is designed to enclosed construction.Air intake duct is directly protruding into suction muffler so as to by low pressure from the external world
Gas is introduced, and gas is respectively enterd in a pair of working chambers of screw compressor by the runner in suction muffler, and working chamber is servo-actuated whirlpool
The rotation of disk, volume is gradually reduced, and raises gas pressure, from blast pipe discharge.Because only with an air intake duct, gas is needed
Two symmetrical working chambers are respectively enterd through different paths, because flow losses are different, are inhaled from the working chamber of air entry farther out
Enter working medium amount less.Also, due to the interference that Moving plate is moved, under certain compressor corner, the outside lateral movement of Moving plate will be stifled
The air intake passage of the working chamber from air entry farther out is filled in, causes it to stop suction, or even discharges gas, so that the work
Chamber inspiratory capacity is reduced.Under the effect of both the above factor, on the one hand current single suction tracheae design causes the suction of compressor complete machine
Tolerance is reduced, and volumetric efficiency declines；On the other hand due to a suction muffler poor inspiration, two symmetrical work cavity pressure temperature are caused
Degree is asymmetric, causes Moving plate Force Calculation deviation larger, and unit produces vibration, and noise increase reduces the reliability of compressor.
Utility model content
The purpose of this utility model is the provision of a kind of screw compressor, and the device ensures two work cavity pressures and temperature
Spend the symmetry of distribution.
The utility model is the technical scheme adopted is that a kind of screw compressor, including housing, and branch is provided with housing
It is connected with main shaft, cross slip-ring and quiet disk on frame, support in turn, main shaft and quiet disk are coaxial, and Jing Panshang is provided with several air-breathings
It is inserted with hole, each suction hole on air intake duct, air intake duct and is provided with sealing ring, is provided with cross slip-ring in Moving plate, Moving plate
The heart is coordinated by capacity eccentric bearing and main shaft.
The characteristics of the utility model, also resides in,
Suction hole sets two, and two suction holes are oppositely arranged, and two suction holes are close to the side of quiet disk, two suction holes
Upper to be inserted with the second air intake duct and the first air intake duct respectively, the second air intake duct is connected with the middle part of the first air intake duct, the first air intake duct
To stretch out housing outer and be provided with air entry at top.
Balance weight is provided with main shaft.
Quiet disk exhaust outlet is provided with quiet disk.
Blast pipe is provided with housing.
The junction of support and main shaft is provided with main shaft bearing.
Quiet disk is connected by screw and alignment pin with support.
Set jagged on support, the breach on support and housing formation exhaust UNICOM mouthful.
Moving plate and quiet disk are provided with the whirlpool tooth of parameter identical circle involute molded line, Moving plate and quiet disk circle involute molded line
Phase differs 180 °.
Moving plate and quiet disk engage to form the first working chamber and the second working chamber, the first working chamber and the second working chamber respectively with
First air intake duct and the second air intake duct are connected.
The beneficial effects of the utility model are：
(1) by setting air intake duct respectively in screw compressor suction muffler both sides, the air inlet of two suction mufflers, increase are improved
The inspiratory capacity of complete machine.
(2) by setting double air suction structures, influence of the Moving plate motion to working chamber air-breathing is eliminated, prevents intracavity gas from returning
Stream, and eliminate two suction muffler air inlet energy imbalances.
(3) two result of calculation between air intake duct and suction muffler based on Fluid Mechanics Computation carries out streaming design, drop
Flow losses in low first air intake duct and the first working chamber, and the flow losses in the second air intake duct and the second working chamber,
So as to reduce the loss of suction of complete machine, overall efficiency is improved.
Brief description of the drawings
Fig. 1 is a kind of structural representation of screw compressor of the utility model；
Fig. 2 is A-A sectional views in Fig. 1.
In figure, 1. blast pipes, 2. housings, 3. supports, 4. screws, 5. quiet disks, 6. first air intake ducts, 7. air entries, 8. is close
Seal, 9. quiet disk exhaust outlets, 10. second air intake ducts, 11. Moving plates, 12. cross slip-rings, 13. capacity eccentric bearings, 14. balance weights, 15.
Main shaft, 16. main shaft bearings, 17. exhaust UNICOMs mouthful, 18. first working chambers, 19. second working chambers, 20. alignment pins, 21. air-breathings
Hole.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
The utility model provides a kind of screw compressor, as depicted in figs. 1 and 2, including housing 2, is provided with housing 2
It is connected with main shaft 15, cross slip-ring 12 and quiet disk 5 on support 3, support 3 in turn, main shaft 15 and quiet disk 5 are coaxial, is set on quiet disk 5
Have to be inserted with air intake duct, air intake duct on several suction holes 21, each suction hole 21 and be provided with sealing ring 8, the cross slip-ring
It is provided with Moving plate 11 on 12, Moving plate 11 coordinates centrally through capacity eccentric bearing 13 with main shaft 15；
Suction hole 21 sets two, and two suction holes 21 are oppositely arranged, and two suction holes 21 are close to the side of quiet disk 5, two
The middle part of the second air intake duct 10 and the first air intake duct 6, the second air intake duct 10 and the first air intake duct 6 is inserted with individual suction hole 21 respectively
Connection, the top of the first air intake duct 6 is stretched out outside housing 2 and is provided with air entry 7；
Balance weight 14 is provided with main shaft 15；
Quiet disk exhaust outlet 9 is provided with quiet disk 5；
Blast pipe 1 is provided with housing 2；
The junction of support 3 and main shaft 15 is provided with main shaft bearing 16；
Quiet disk 5 is connected by screw 4 and alignment pin 20 with support 3；
Set jagged on support 3, the breach on support 3 and the formation exhaust of housing 2 UNICOM mouthful 17；
Moving plate 11 and quiet disk 5 are provided with the whirlpool tooth of parameter identical circle involute molded line, Moving plate 11 and the circle involute of quiet disk 5
The phase of molded line differs 180 °；
Moving plate 11 and the engagement of quiet disk 5 form the first working chamber 18 and the second working chamber 19, the first working chamber 18 and the second work
Make chamber 19 to connect with the first air intake duct 6 and the second air intake duct 10 respectively, the first air intake duct 6 and the second air intake duct 10 and the first work
The result of calculation based on Fluid Mechanics Computation carries out streaming design between the working chamber 19 of chamber 18 and second, i.e., such as part B in Fig. 2
Curve Design, the flow losses in the first air intake duct of reduction and the first working chamber, and the second air intake duct and the second working chamber
Interior flow losses, so as to reduce the loss of suction of complete machine, improve overall efficiency.
A kind of operation principle of screw compressor of the utility model is：The driving Moving plate 11 of main shaft 15 is moved, and Moving plate 11 is surrounded
The center of main shaft 15 is revolved round the sun, but Moving plate 11 keeps translation under the limitation of cross slip-ring 12 certainly, it is impossible to rotation, the He of Moving plate 11
The whirlpool tooth parameter of quiet disk 5 is all identical, but phase is different, and Moving plate 11 and the engagement of quiet disk 5 form the first working chamber 18 and the second work
Chamber 19, the angle of engagement of the volume follower disk 11 and quiet disk 5 of the first working chamber 18 and the second working chamber 19 gradually increases, internal pressure
Reduction, sucks gas；
Now, gas enters the first air intake duct 6 and the second air intake duct 10, Ran Houfen under differential pressure action by air entry 7
Suction muffler is not entered by the first air intake duct 6 and the second air intake duct 10；The gas of first air intake duct 6 primarily enters the first working chamber
18, the gas of the second air intake duct 10 primarily enters the second working chamber 19, so as to ensure the inspiratory capacity and intracavitary pressure of two working chambers
The symmetry of power and temperature.Two working chamber follower disks 11 rotate the center movement to quiet disk 5, and intracavitary volume reduces, gas pressure
Power is raised；After working chamber and quiet 9 UNICOM of disk exhaust outlet, intracavity gas discharge；Gases at high pressure pass through from the top of compressor housing 2
It is vented UNICOM mouthful 17 and enters the middle part of compressor housing 2, compressor is discharged through blast pipe 1.
A kind of screw compressor of the present utility model is passed through respectively by setting the first air intake duct 6 and the second air intake duct 10
First air intake duct 6 and the second air intake duct 10 enter suction muffler；The gas of first air intake duct 6 primarily enters the first working chamber 18, the
The gas of two air intake ducts 10 primarily enters the second working chamber 19, so as to ensure the inspiratory capacity and cavity pressure and temperature of two working chambers
The symmetry of degree, reduction vibration, improves compressor operating stability.
Claims (10)
1. a kind of screw compressor, it is characterised in that：Including housing (2), it is provided with housing (2) on support (3), support (3)
It is connected with main shaft (15), cross slip-ring (12) and quiet disk (5) in turn, main shaft (15) coaxially, is set with quiet disk (5) on quiet disk (5)
Have to be inserted with air intake duct, air intake duct on several suction holes (21), each suction hole (21) and be provided with sealing ring (8), described ten
It is provided with Moving plate (11) on word slip ring (12), Moving plate (11) coordinates centrally through capacity eccentric bearing (13) and main shaft (15).
2. a kind of screw compressor according to claim 1, it is characterised in that：The suction hole (21) sets two, two
Individual suction hole (21) is oppositely arranged, and two suction holes (21) are inserted with respectively on the side of quiet disk (5), two suction holes (21)
Second air intake duct (10) and the first air intake duct (6), the second air intake duct (10) are connected with the middle part of the first air intake duct (6), and first inhales
The top of tracheae (6) stretches out housing (2) outside and is provided with air entry (7).
3. a kind of screw compressor according to claim 1, it is characterised in that：Balance weight is provided with the main shaft (15)
(14)。
4. a kind of screw compressor according to claim 1, it is characterised in that：Quiet disk row is provided with the quiet disk (5)
Gas port (9).
5. a kind of screw compressor according to claim 1, it is characterised in that：Blast pipe is provided with the housing (2)
(1)。
6. a kind of screw compressor according to claim 1, it is characterised in that：The support (3) and the company of main shaft (15)
The place of connecing is provided with main shaft bearing (16).
7. a kind of screw compressor according to claim 1, it is characterised in that：The quiet disk (5) is by screw (4) and determines
Position pin (20) is connected with support (3).
8. a kind of screw compressor according to claim any one of 1-7, it is characterised in that：Set on the support (3)
It is jagged, breach and housing (2) formation exhaust UNICOM mouthful (17) on support (3).
9. a kind of screw compressor according to claim 8, it is characterised in that：The Moving plate (11) and quiet disk (5) are set
There is 180 ° of the phase difference of the whirlpool tooth of parameter identical circle involute molded line, Moving plate (11) and quiet disk (5) circle involute molded line.
10. a kind of screw compressor according to claim 8, it is characterised in that：The Moving plate (11) and quiet disk (5) engagement
The first working chamber (18) and the second working chamber (19) are formed, the first working chamber (18) and the second working chamber (19) are inhaled with first respectively
Tracheae (6) is connected with the second air intake duct (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720091898.7U CN206513564U (en) | 2017-01-22 | 2017-01-22 | A kind of screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720091898.7U CN206513564U (en) | 2017-01-22 | 2017-01-22 | A kind of screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206513564U true CN206513564U (en) | 2017-09-22 |
Family
ID=59866973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720091898.7U Active CN206513564U (en) | 2017-01-22 | 2017-01-22 | A kind of screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206513564U (en) |
-
2017
- 2017-01-22 CN CN201720091898.7U patent/CN206513564U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201110 Address after: No.2358, east side of Chang'an Road, Wujiang Economic and Technological Development Zone, Suzhou, Jiangsu Province, 215200 Patentee after: Suzhou Xili Technology Services Ltd. Address before: 710048 Shaanxi city of Xi'an Province Jinhua Road No. 5 Patentee before: XI'AN University OF TECHNOLOGY |
|
| TR01 | Transfer of patent right |