CN207246118U - A kind of centrifugal compressor inlet plenum - Google Patents
A kind of centrifugal compressor inlet plenum Download PDFInfo
- Publication number
- CN207246118U CN207246118U CN201720810610.7U CN201720810610U CN207246118U CN 207246118 U CN207246118 U CN 207246118U CN 201720810610 U CN201720810610 U CN 201720810610U CN 207246118 U CN207246118 U CN 207246118U
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- CN
- China
- Prior art keywords
- inlet plenum
- centrifugal compressor
- oblique
- circular cone
- compressor inlet
- 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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Links
- 238000003466 welding Methods 0.000 claims description 8
- 238000003801 milling Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
A kind of centrifugal compressor inlet plenum described in the utility model, including Shell Plate, further include the oblique component for being separately positioned on Shell Plate both ends, the Shell Plate and two oblique components form airtight chamber, the centrifugal compressor inlet plenum can not only lift the intake efficiency and anti-pressure ability of compressor, and under the same conditions, the axial span of air inlet cell structure is also significantly shortened, so as to further improve the dynamic performance of rotor.
Description
Technical field
The utility model relates to compressor, more particularly to a kind of inlet plenum of centrifugal compressor.
Background technology
Rotor and stator are the main building blocks of centrifugal compressor, and rotor is as only to air-flow work done in compressor
Element, compressor overall performance can effectively be lifted by improving its work efficiency；And stator is as the diversion member in compressor, drop
The flow losses of low-flow wherein also can effectively lift compressor overall performance.Casing is as most important in stator component
Part, has its optimizing research great meaning.When designing the inlet plenum of casing, its air inlet area will meet necessarily
Requirement.As shown in Figure 1, the inlet plenum outer end plate 1 of two sections of single shaft centrifugal compressors of the back-to-back pattern arrangement of impeller is vertical
Tablet.This structure type has the following disadvantages：
(1) mechanics mechanism poor performance, for high pressure operating mode, the water pressure test is difficult to pass through.
(2) vertical outer end harden structure guide performance is poor, and air-flow easily produces whirlpool in flow process.
(3) in volute casing area under the same conditions, which needs longer axial span, and stability is poor.
Utility model content
The defects of in order to overcome the prior art, the utility model proposes a kind of centrifugal compressor inlet plenum.
Centrifugal compressor inlet plenum described in the utility model, including Shell Plate 2, further include and are separately positioned on Shell Plate 2
The oblique component at both ends, the Shell Plate 2 and two oblique components form airtight chamber.
Further, the oblique component includes oblique pull tablet 11 and circular cone plate 12, wherein：
The oblique pull tablet 11 is fixedly connected with end of the circular cone plate 12 respectively with the Shell Plate 2；
The groove that the circular cone plate 12 processes milling is fixedly connected with the oblique pull tablet 11.
Further, the groove of the processing of circular cone plate 12 milling is welded with oblique pull tablet 11.
Further, the circular cone plate 12 and the weld seam roughness of the oblique pull tablet 11 welding are Ra25.
Further, the circular cone plate 12 after the completion of the oblique pull tablet 11 welding with carrying out stress-removal processing.
Further, the inlet plenum is installed on single shaft centrifugal compressor.
Centrifugal compressor inlet plenum described in the utility model can not only lift the intake efficiency and resistance to compression energy of compressor
Power, and under the same conditions, the axial span of air inlet cell structure is also significantly shortened, so as to further improve the power of rotor
Learn performance.
Brief description of the drawings
When considered in conjunction with the accompanying drawings, by referring to following detailed description, it can more completely more fully understand that this practicality is new
Type and easily learn many of which with the advantages of, but attached drawing described herein is used for providing to the utility model into one
Step understands, forms the part of the utility model, and the schematic description and description of the utility model is used to explain this practicality
It is new, the improper restriction to the utility model is not formed, is such as schemed wherein：
Fig. 1 is prior art centrifugal compressor sectional view；
Fig. 2 is centrifugal compressor sectional view described in the utility model.
Fig. 3 is centrifugal compressor inlet plenum structure diagram described in the utility model.
Embodiment
With reference to Figure of description, the embodiment of centrifugal compressor inlet plenum described in the utility model is carried out
Explanation.
As shown in Figure 2,3, a kind of centrifugal compressor inlet plenum described in the present embodiment, the inlet plenum include Shell Plate 2,
With the oblique component for being separately positioned on 2 both ends of Shell Plate, shown Shell Plate 2 and two oblique components form be used for fluid media (medium) into
Enter the airtight chamber of compressor.
The oblique component includes oblique pull tablet 11 and circular cone plate 12, the oblique pull tablet 11 and circular cone plate 12 respectively with outside
The end of coverboard 2 is fixedly connected, and the groove that milling is processed on circular cone plate 12 is fixedly connected with oblique pull tablet 11, it is preferable that described
Oblique pull tablet 11 is welded with end of the circular cone plate 12 respectively with Shell Plate 2, and the groove that milling is processed on circular cone plate 12 is put down with oblique pull
Plate 11 is welded, and in welding, as makes weld seam neat, smooth as possible, in uniform corrugated.
Preferably, welding seam grinding is into Ra25, and metal true qualities are exposed in sandblasting after welding, postwelding stress-removal is handled.
Preferably, by Shell Plate 2 and oblique component after installation is complete, inlet plenum surfaces externally and internally is carried out eliminating burr and is splashed
And the debris such as welding slag processing.
Inlet plenum described in the present embodiment passes through flow field analysis, and inlet plenum efficiency can improve 1.5%；The structure passes through mechanics
Analysis, it is with more preferable bearing capacity；Under the same conditions, it is left can effectively to shorten 15% for the axial span of the structure
The right side, improves the dynamic performance of rotor.
As another embodiment, the air inlet cell structure using above-mentioned inlet plenum as single shaft centrifugal compressor, due to being provided with
Above-mentioned inlet plenum, therefore the single shaft centrifugal compressor also has relevant art effect.
As described above, the embodiment of the utility model is explained, it is clear that as long as essentially without disengaging
The utility model point and effect of the utility model, will be readily apparent to persons skilled in the art deformation, also all wrap
It is contained within the scope of protection of the utility model.
Claims (5)
1. a kind of centrifugal compressor inlet plenum, including Shell Plate (2), it is characterised in that further include and be separately positioned on Shell Plate (2)
The oblique component at both ends, the Shell Plate (2) and two oblique components form airtight chamber；
The oblique component includes oblique pull tablet (11) and circular cone plate (12), wherein：
The oblique pull tablet (11) is fixedly connected with end of the circular cone plate (12) respectively with the Shell Plate (2)；
The groove of circular cone plate (12) the processing milling is fixedly connected with the oblique pull tablet (11).
2. centrifugal compressor inlet plenum according to claim 1, it is characterised in that circular cone plate (12) the processing milling
Groove is welded with oblique pull tablet (11).
3. centrifugal compressor inlet plenum according to claim 2, it is characterised in that the circular cone plate (12) and the oblique pull
The weld seam roughness of tablet (11) welding is Ra25.
4. centrifugal compressor inlet plenum according to claim 3, it is characterised in that the circular cone plate (12) and the oblique pull
Stress-removal processing is carried out after the completion of tablet (11) welding.
5. according to the centrifugal compressor inlet plenum described in claim 1-4 any one, it is characterised in that the inlet plenum installation
In single shaft centrifugal compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720810610.7U CN207246118U (en) | 2017-07-06 | 2017-07-06 | A kind of centrifugal compressor inlet plenum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720810610.7U CN207246118U (en) | 2017-07-06 | 2017-07-06 | A kind of centrifugal compressor inlet plenum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207246118U true CN207246118U (en) | 2018-04-17 |
Family
ID=61877531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720810610.7U Active CN207246118U (en) | 2017-07-06 | 2017-07-06 | A kind of centrifugal compressor inlet plenum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207246118U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120351A (en) * | 2019-12-18 | 2020-05-08 | 沈阳透平机械股份有限公司 | Single-shaft isothermal centrifugal air compressor |
-
2017
- 2017-07-06 CN CN201720810610.7U patent/CN207246118U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120351A (en) * | 2019-12-18 | 2020-05-08 | 沈阳透平机械股份有限公司 | Single-shaft isothermal centrifugal air compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110869 No. 16 A Development Road, Shenyang Economic and Technological Development Zone, Liaoning Province Patentee after: Shenyang Blower Works Group Corp. Patentee after: SHENYANG TURBO MACHINERY Co.,Ltd. Address before: 110869 No. 16 A Development Road, Shenyang Economic and Technological Development Zone, Liaoning Province Patentee before: SHENYANG BLOWER WORKS Group Corp. Patentee before: SHENYANG TURBO MACHINERY Co.,Ltd. |