CN203770210U - Centrifugal compressor rotor structure - Google Patents
Centrifugal compressor rotor structure Download PDFInfo
- Publication number
- CN203770210U CN203770210U CN201420177687.1U CN201420177687U CN203770210U CN 203770210 U CN203770210 U CN 203770210U CN 201420177687 U CN201420177687 U CN 201420177687U CN 203770210 U CN203770210 U CN 203770210U
- Authority
- CN
- China
- Prior art keywords
- centrifugal compressor
- rotor
- spacer
- main shaft
- compressor rotor
- 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.)
- Expired - Lifetime
Links
- 125000006850 spacer group Chemical group 0.000 claims abstract description 31
- 241000826860 Trapezium Species 0.000 claims description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model belongs to the technical field of centrifugal compressors, and particularly relates to a centrifugal compressor rotor structure. A centrifugal compressor rotor main shaft is sleeved with a plurality of impellers, spacer bushes installed on the rotor main shaft in a sleeved mode are arranged between the impellers, shaft sections, corresponding to the spacer bushes, of the rotor main shaft are provided with annular grooves respectively in the circumferential direction, and the widths of the annular grooves in the axial direction are smaller than the lengths of the corresponding spacer bushes. By means of the centrifugal compressor rotor structure, the centrifugal compressor rotor mechanical property is optimized, the rotor weight is lightened, a bearing and shaft-end seal are selected in a downshift mode, and meanwhile the whole machine can be compact in structure.
Description
Technical field
The utility model belongs to the technical field of centrifugal compressor, specifically a kind of centrifugal compressor rotor structure.
Background technique
Centrifugal compressor occupies critical role in each department of industrial field, is particularly applied widely at industrial departments such as petrochemical industry, metallurgy, natural gas transport, refrigeration and power.Along with the efficient fast development of national economy and the requirement to the aspect such as energy-saving and emission-reduction, environmental protection, related discipline, as the achievement of subject and the utilizations of some new technologies such as thermal conduction study, gas dynamics, machine dynamics, computer, modern controls, and the employing of Modern Manufacturing Technology, for the compressor set that plays a significant role is more and more to future developments such as maximization, high efficiency, high stabilities, provide the possibility of strong technical support and realization in national economy.Thereby design the high performance centrifugal compressor of high efficiency and have very important significance.On the other hand, along with chemical-process becomes increasingly complex, the structural design of centrifugal compressor is had higher requirement, some enterprises need the higher compressor of automation, distribute, and ensure entire system efficiency and reliability to reach human resources optimization.
Tend to the compressor that occurs that flow is large, medium molecule amount is large, complete machine pressure ratio is little, conventionally this type of compressor rotary speed is low, conventional rotor design mode is to increase bearing centre span, increase the weight of rotor, often bearing is selected very greatly, causes shaft end seal also larger accordingly, and along with the increasing of bearing centre span, also increased in size thereupon of corresponding stator component, complete machine weight increases.Because rotor main shaft is long, machining accuracy often can not get ensureing, usually therefore perplexs technique and job-shop operation personnel simultaneously.
Model utility content
In order to solve the problem of above-mentioned existence, the purpose of this utility model is to provide a kind of centrifugal compressor rotor structure.This rotor structure reduces the relevant position diameter of axle, has realized the optimization of centrifugal compressor rotor mechanical property, alleviates rotor weight, bearing, shaft end seal is lowered category and select, and can make compact integral structure simultaneously.
To achieve these goals, the utility model is by the following technical solutions:
A kind of centrifugal compressor rotor structure, on the rotor main shaft of centrifugal compressor, be set with multi-stage impeller and spacer, described spacer and impeller are arranged alternately, on described rotor main shaft each shaft part corresponding with each spacer along being circumferentially respectively equipped with annular groove, forming section sleeve rotor structure.
Described annular groove width is vertically less than the length of corresponding spacer.Described annular groove width is vertically than the little 50-70mm of the length of corresponding spacer.The cross section of described annular groove is the trapezium structure that opening is greater than bottom.Shaft section diameter on the corresponding rotor main shaft of described annular groove is the 70%-90% of the diameter of rotor main shaft.
Advantage of the present utility model and good effect are:
1. the utility model is simple in structure, takes minor diameter design by rotor main shaft and spacer being assembled to corresponding shaft part part sections, realizes the design of sleeve rotor.
2. the utility model is taked minor diameter design by rotor main shaft and spacer being assembled to corresponding shaft part part sections, can increase the flexible of rotor, thereby optimized rotor dynamics performance under the prerequisite of length that does not increase rotor.
3. the utility model is taked that rotor main shaft and spacer are assembled to corresponding shaft part part sections and is taked minor diameter design, the rotor weight that meets same rotor dynamics performance is lighter than not taking the rotor weight of minor diameter design, thereby realize bearing, the shaft end seal type selecting that lowers category, save unit cost.
4. the utility model is taked that rotor main shaft and spacer are assembled to corresponding shaft part part sections and is taked minor diameter design, and rotor length has reduced, thereby corresponding stationary part size has also been reduced, and has reduced the waste of material.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the assembling schematic diagram of the utility model and spacer and impeller.
Wherein: 1 is rotor main shaft, 2 is annular groove, and 3 is spacer, and 4 is impeller.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, be set with multi-stage impeller 4 and spacer 3 on the rotor main shaft 1 of the utility model centrifugal compressor, described spacer 3 is arranged alternately with impeller 4, on described rotor main shaft 1 on each shaft part corresponding with each spacer 3 along being circumferentially respectively equipped with annular groove 2.
Described annular groove 2 width is vertically less than the length of corresponding spacer 3, described annular groove 2 width is vertically than the little 50-70mm of the length of corresponding spacer 3, the cross section of described annular groove 2 is the trapezium structure that opening is greater than bottom, and end face and the bottom of annular groove 2 are equipped with fillet.
Shaft section diameter Φ a (being groove internal diameter) on the corresponding rotor main shaft 1 of described annular groove 2 is the 70%-90% of rotor main shaft 1 diameter of phi b.
The length of described annular groove 2 is calculated and is determined according to actual spacer length, rotor dynamics performance, meets the requirement such as installation requirements, the easy processing of rotor of spacer 3.Groove internal diameter Φ a, according to rotor dynamics performance calculating and setting, can be that each groove internal diameter size is identical, also can be different.
As shown in Figure 2, after rotor main shaft 1 of the present utility model is assembled with spacer 3 and impeller 4, adopt part shaft part to take minor diameter structure because assemble corresponding shaft part at rotor main shaft 1 and spacer 3, assemble on corresponding shaft part along being circumferentially with annular groove 2 at rotor main shaft 1 and spacer 3, after spacer structure assembling, form part hollow, realized sleeve rotor structure.
Working principle of the present utility model is:
Take minor diameter structure by assemble corresponding shaft part part sections at rotor main shaft 1 and spacer 3, increase the flexible of rotor, thereby the mechanical property of rotor is optimized, also can make compact overall structure simultaneously.
Claims (5)
1. a centrifugal compressor rotor structure, on the rotor main shaft (1) of centrifugal compressor, be set with multi-stage impeller (4) and spacer (3), described spacer (3) is arranged alternately with impeller (4), it is characterized in that: on described rotor main shaft (1) each shaft part corresponding with each spacer (3) along being circumferentially respectively equipped with annular groove (2), forming section sleeve rotor structure.
2. by centrifugal compressor rotor structure claimed in claim 1, it is characterized in that: described annular groove (2) width is vertically less than the length of corresponding spacer (3).
3. by centrifugal compressor rotor structure claimed in claim 2, it is characterized in that: described annular groove (2) width is vertically than the little 50-70mm of length of corresponding spacer (3).
4. by the centrifugal compressor rotor structure described in claim 1-3 any one, it is characterized in that: the cross section of described annular groove (2) is the trapezium structure that opening is greater than bottom.
5. by centrifugal compressor rotor structure claimed in claim 1, it is characterized in that: the shaft section diameter on the corresponding rotor main shaft (1) of described annular groove (2) is the 70%-90% of the diameter of rotor main shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420177687.1U CN203770210U (en) | 2014-04-14 | 2014-04-14 | Centrifugal compressor rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420177687.1U CN203770210U (en) | 2014-04-14 | 2014-04-14 | Centrifugal compressor rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770210U true CN203770210U (en) | 2014-08-13 |
Family
ID=51287406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420177687.1U Expired - Lifetime CN203770210U (en) | 2014-04-14 | 2014-04-14 | Centrifugal compressor rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770210U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613005A (en) * | 2015-01-30 | 2015-05-13 | 哈尔滨汽轮机厂有限责任公司 | High-rotating-speed shrinkage-fit compressor rotor |
| CN105773088A (en) * | 2016-04-29 | 2016-07-20 | 沈阳透平机械股份有限公司 | Machining method for compressor sectional type spindle connection pin holes |
-
2014
- 2014-04-14 CN CN201420177687.1U patent/CN203770210U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613005A (en) * | 2015-01-30 | 2015-05-13 | 哈尔滨汽轮机厂有限责任公司 | High-rotating-speed shrinkage-fit compressor rotor |
| CN105773088A (en) * | 2016-04-29 | 2016-07-20 | 沈阳透平机械股份有限公司 | Machining method for compressor sectional type spindle connection pin holes |
| CN105773088B (en) * | 2016-04-29 | 2017-10-17 | 沈阳透平机械股份有限公司 | The processing method of compressor segmented main shaft connecting pin bores |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |
|
| CX01 | Expiry of patent term |