CN203488382U - Vertical dividing centrifugal compressor with horizontal air inlet cylinder and horizontal air outlet cylinder - Google Patents
Vertical dividing centrifugal compressor with horizontal air inlet cylinder and horizontal air outlet cylinder Download PDFInfo
- Publication number
- CN203488382U CN203488382U CN201320617981.5U CN201320617981U CN203488382U CN 203488382 U CN203488382 U CN 203488382U CN 201320617981 U CN201320617981 U CN 201320617981U CN 203488382 U CN203488382 U CN 203488382U
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- Prior art keywords
- casing
- air inlet
- horizontal air
- centrifugal compressor
- main shaft
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- 238000007789 sealing Methods 0.000 claims description 37
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 6
- 210000004907 gland Anatomy 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000003345 natural gas Substances 0.000 abstract description 4
- 239000011435 rock Substances 0.000 description 4
- 230000007306 turnover Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
- F04D17/12—Multi-stage pumps
- F04D17/122—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors
- F04D17/125—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors the casing being vertically split
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model belongs to the field of design of centrifugal compressors for natural gas in the west-east national gas transmission project, and particularly relates to a vertical dividing centrifugal compressor with a horizontal air inlet cylinder and a horizontal air outlet cylinder. The vertical dividing centrifugal compressor comprises a compressor shell, separating plates, an end cover, supporting bearings, a main shaft, impellers, separating sleeves, a balanced disc, the air inlet cylinder and the air outlet cylinder, wherein the two ends of the compressor shell are connected with the end cover through end cover connecting devices, the main shaft is arranged in the compressor shell, the two ends of the main shaft are in rotation connection with the end cover through the supporting bearings, the main shaft is sleeved with the impellers in all stages, the separating sleeves are arranged between the impellers in all stages, the main shaft is sleeved with the balanced disc, and the balanced disc is connected with the impeller in the final stage in an abutting-against mode; the separating plates arranged between the impellers in all stages are connected to the inner wall of the compressor shell, the connecting positions between the separating plates and the impellers and the connecting positions between the separating plates and the separating sleeves are provided with port ring seals and inter-stage seals respectively, a balanced disc seal is arranged between the balanced disc and the outlet separating plate, and the air inlet cylinder and the air outlet cylinder are horizontally arranged on the two sides of the compressor shell. The vertical dividing centrifugal compressor can stably and efficiently pressurize the natural gas and enable the natural gas to be conveyed in a pipe.
Description
Technical field
The utility model belongs to the centrifugal compressor design field of West-East National Gas Transmission Project rock gas, specifically a kind of vertical subdivision centrifugal compressor of horizontal air inlet and outlet cylinder.
Background technique
West-East National Gas Transmission Project, is national strategy engineering, the engineering that downstream people daily life relies on especially.Centrifugal compressor is one of West-East National Gas Transmission Project nucleus equipment, the production domesticization of long-distance transport pipes Systems of Centrifugal Compressor Unit, it is the important topic of China's Grand Equipments development, it is China several generations' dream, original compressor does not have the impeller of the little pressure ratio of large flow, and original compressor mostly is import and export air duct and arranges up and down compressor, and compressor bank efficiency is low, and be not suitable for field installation conditions, can not meet pipe stress 8XNEMA requirement.
Model utility content
For the problems referred to above, the purpose of this utility model is to provide a kind of vertical subdivision centrifugal compressor of horizontal air inlet and outlet cylinder, this centrifugal compressed function stability and high efficiency be natural gas boosting, rock gas is transported in pipeline.
To achieve these goals, the utility model is by the following technical solutions:
A kind of vertical subdivision centrifugal compressor of horizontal air inlet and outlet cylinder, comprise casing, dividing plate, end cap, spring bearing, main shaft, impeller, spacer, Balance disc, air intake cylinder and wind outlet barrel, wherein casing two ends are all connected with end cap by end cap connection set, described main shaft is arranged in casing and two ends are rotationally connected by spring bearing and end cap, on described main shaft, be arranged with impellers at different levels, between impellers at different levels, be provided with spacer, described Balance disc is sheathed on main shaft and with afterbody impeller and connects; Described casing inner wall is connected with the dividing plate being located between impellers at different levels, described dividing plate and impeller and spacer connecting part are respectively equipped with mouthful circle sealing and inter-stage sealing, between described Balance disc and outlet partition plate, be provided with Balance disc sealing, described air intake cylinder and wind outlet barrel are horizontally placed on casing both sides.
Described end cap connection set comprises mounting or dismounting ring, snap ring and match grinding shear ring, described snap ring is connected on the outer, end of end cap and is placed in the groove that casing inner wall of end radially offers, the outside of described snap ring be provided be placed in casing end recesses for adjusting the match grinding shear ring of snap ring mounting point, described snap ring is connected with casing by screw with match grinding shear ring, and described mounting or dismounting ring is arranged at the end of casing and is connected with end cap with casing respectively by bolt.Described snap ring is that full circle cuts as pintongs.
Described mouthful is enclosed sealing, inter-stage sealing and Balance disc sealing and is helical teeth sealing crown sensing high pressure side.Described mouthful of circle is sealed into the sealing of ladder helical teeth.Described Balance disc sealing is provided with a plurality of recoil pores, and described recoil pore is communicated with the gap between Balance disc sealing and Balance disc with outlet volute casing.The two ends of described main shaft are rotationally connected by split spring bearing and integrated support bearing and end cap respectively.Described integrated support bearing outside is provided with solid bearing gland.Described casing comprises outer cage and inner casing, and the two ends of described outer cage are all connected with end cap by end cap connection set, and described dividing plate is connected on inner casing.
Advantage of the present utility model and good effect are:
1. the utility model adopts new supporting structure, and spring bearing one end adopts integral form, and the other end adopts separate form, has greatly shortened the span between spring bearing, thereby has made pipeline Compressor Group stable.
2. impeller of the present utility model makes the pipeline compressor operating efficiency of the little pressure ratio of large flow reach 87%, and range of operation has reached 40%-165%.
3. the utility model has adopted the turnover gas mode of horizontal air duct, turnover air pocket chamber is designed according to horizontal intake method, and increase entry guide vane at air inlet nest chamber end, fully meet the requirement of compressor station, turnover gas flange horizontal arrangement, reduced aerodynamic loss, reduced the stress of the pipeline of unit, made unit meet the requirement of 8NEME.
4. the utility model adopts brand-new snap ring, match grinding shear ring, the end cap of mounting or dismounting ring and the orientation type of casing, solved the not enough problem of pressure-bearing of the large type of high pressure, the hydraulic test pressure of compressor bank is 18.9MPa (A) at present, and dismounting is simple and convenient, broken through the bolt of traditional end cap and casing closing form.
5. the utility model has adopted high explosion-proof seal ring, guarantees the tightness of compressor bank, guarantees the long-term stability operation of unit.
Accompanying drawing explanation
Figure 1A is overall structure schematic diagram of the present utility model;
Figure 1B is the left view of Figure 1A;
Fig. 2 A is the structural representation of the utility model inner casing;
Fig. 2 B is the side view of Fig. 2 A;
Fig. 3 A is the structural representation of the utility model dividing plate;
Fig. 3 B is the side view of Fig. 3 A;
Fig. 4 A is the structural representation of the utility model outlet partition plate;
Fig. 4 B is the side view of Fig. 4 A;
Fig. 5 A is the structural representation of the utility model end cap;
Fig. 5 B is the side view of Fig. 5 A;
Fig. 6 is the structural representation of the utility model mouth circle sealing;
Fig. 7 is the structural representation of the utility model inter-stage sealing;
Fig. 8 A is the structural panel schematic diagram of the utility model mounting or dismounting ring;
Fig. 8 B is the side view of Fig. 8 A;
Fig. 9 A is the structural representation of the utility model snap ring;
Fig. 9 B is the side view of Fig. 9 A;
Figure 10 A is the structural representation of the utility model match grinding shear ring;
Figure 10 B is the side view of Figure 10 A;
Figure 11 is the structural representation of the utility model thrust bearing gland;
Figure 12 A is the structural representation of the utility model integrated support bearing;
Figure 12 B is Figure 12 A side view;
Figure 13 A is the structural representation of the utility model split spring bearing;
Figure 13 B is the side view of Figure 13 A.
Wherein: 1 is outer cage, 2 is inner casing, and 3 is dividing plate, and 4 is outlet partition plate, 5 is end cap, and 6 is a mouthful circle sealing, and 7 is inter-stage sealing, and 8 is Balance disc sealing, 9 is mounting or dismounting ring, and 10 is snap ring, and 11 is match grinding shear ring, and 12 is thrust bearing gland, 13 is integrated support bearing, and 14 is split spring bearing, and 15 is main shaft, and 16 is impeller, 17 is Balance disc, and 18 is air induction mast, and 19 is gas outlet, 20 is base, and 21 is bolt, and 22 is side flange.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1A-5B, the utility model comprises casing, dividing plate 3, end cap 5, spring bearing, main shaft 15, impeller 16, spacer, Balance disc 17, air intake cylinder 18 and wind outlet barrel 19, and wherein casing comprises outer cage 1 and is arranged at the inner casing 2 in outer cage 1.The two ends of outer cage 1 are all connected with end cap 5 by end cap connection set, described main shaft 15 is arranged in inner casing 1 and two ends are rotationally connected by spring bearing and end cap 5, on described main shaft 15, be arranged with impellers 16 at different levels, between impellers 16 at different levels, be provided with spacer, described Balance disc 17 is sheathed on main shaft 15 and with afterbody impeller 16 and connects.The inwall of described inner casing 1 is connected with the dividing plate 3 being located between impellers 16 at different levels, described dividing plate 3 is respectively equipped with mouthful circle sealing 6 and inter-stage sealing 7 with impeller 16 and spacer connecting part, between described Balance disc 17 and outlet partition plate 4, be provided with Balance disc sealing 8, described air intake cylinder 18 and wind outlet barrel 19 are horizontally placed on casing both sides.
As shown in Fig. 8 A-10B, described end cap connection set comprises mounting or dismounting ring 9, snap ring 10 and match grinding shear ring 11, described snap ring 10 is connected on the outer, end of end cap 5 and is placed in the groove that the inner wall of end of outer cage 2 radially offers, the outside of described snap ring 10 is provided with in the end recesses that is placed in outer cage 1 for adjusting the match grinding shear ring 11 of snap ring 10 mounting points, described snap ring 10 is connected with outer cage 1 by screw with match grinding shear ring 11, and described mounting or dismounting ring 9 is arranged at the end of outer cage 1 and is connected with end cap 5 with outer cage 1 respectively by bolt.Described snap ring 10 is pintongs for full circle cuts, and is convenient to install.
Described mouthful circle sealing 6, inter-stage sealing 7 and Balance disc sealing 8 are helical teeth sealing and crown points to high pressure side, reduces the leakage rate of gas, and described mouthful of circle sealing 6 seals for ladder helical teeth, as shown in Figure 6, Figure 7.Described Balance disc sealing 8 is provided with a plurality of recoil pores, described recoil pore is communicated with the gap between Balance disc sealing 8 and Balance disc 17 with outlet volute casing, air-flow in outlet volute casing is introduced in the gap between Balance disc 17 and Balance disc sealing 8 and upset the axial flow that afterbody impeller leaks into Balance disc, prevent the exciting of main shaft 15, improve the stability of main shaft 15.
As shown in Figure 11-13B, the two ends of described main shaft 15 are rotationally connected with end cap 5 by split spring bearing 13 and integrated support bearing 14 respectively, and described integrated support bearing 13 outsides are provided with solid bearing gland 12, guarantee the rigidity of bearing.
Working principle of the present utility model is:
Main shaft 15 use adjustable trestles are adjusted to compressor center height, by the hypovalve of inner casing 2 be placed on main shaft 15 under, axial distance is adjusted according to drawing actual conditions, lower semi-diaphragm 3 is placed in inner casing 2, superior hemiseptum 3 is placed on first of inner casing 2, utilizes dial indicator to play table, and inner casing 2 closes after qualified, utilize inner casing dismantling device that inner casing 2 and main shaft 15 are advanced in outer cage 1, the component such as two ends dress dry gas seals, bearing.That after unit assembling, utilizes motor rotarily drives main shaft 15.16 pairs of rock gases of impeller on main shaft do work, rock gas after the pressurization of impeller blade after Diffuser pressure further raise, through bend, change direction and enter return channel rectification, enter uniformly next stage impeller, after impeller 16 actings of some, pressure reaches the condition of conveying.
Claims (9)
1. the vertical subdivision centrifugal compressor of a horizontal air inlet and outlet cylinder, it is characterized in that: comprise casing, dividing plate (3), end cap (5), spring bearing, main shaft (15), impeller (16), spacer, Balance disc (17), air intake cylinder (18) and wind outlet barrel (19), wherein casing two ends are all connected with end cap (5) by end cap connection set, described main shaft (15) is arranged in casing, and two ends are rotationally connected by spring bearing and end cap (5), on described main shaft (15), be arranged with impellers at different levels (16), impellers at different levels are provided with spacer between (16), described Balance disc (17) is sheathed on main shaft (15), and connect with afterbody impeller (16), described casing inner wall is connected with the dividing plate (3) being located between impellers at different levels (16), described dividing plate (3) is respectively equipped with mouthful circle sealing (6) and inter-stage sealing (7) with impeller (16) and spacer connecting part, between described Balance disc (17) and outlet partition plate (4), be provided with Balance disc sealing (8), described air intake cylinder (18) and wind outlet barrel (19) are horizontally placed on casing both sides.
2. by the vertical subdivision centrifugal compressor of horizontal air inlet and outlet cylinder claimed in claim 1, it is characterized in that: described end cap connection set comprises mounting or dismounting rings (9), snap ring (10) and match grinding shear ring (11), described snap ring (10) is connected on the outer, end of end cap (5), and be placed in the groove that casing inner wall of end radially offers, the outside of described snap ring (10) be provided be placed in casing end recesses for adjusting the match grinding shear ring (11) of snap ring (10) mounting point, described snap ring (10) is connected with casing by screw with match grinding shear ring (11), described mounting or dismounting ring (9) is arranged at the end of casing, and be connected with end cap (5) with casing respectively by bolt.
3. by the vertical subdivision centrifugal compressor of horizontal air inlet and outlet cylinder claimed in claim 2, it is characterized in that: described snap ring (10) is pintongs for full circle cuts.
4. by the vertical subdivision centrifugal compressor of horizontal air inlet and outlet cylinder claimed in claim 1, it is characterized in that: described mouthful of circle sealing (6), inter-stage sealing (7) and Balance disc sealing (8) are helical teeth sealing and crown points to high pressure side.
5. by the vertical subdivision centrifugal compressor of horizontal air inlet and outlet cylinder claimed in claim 4, it is characterized in that: described mouthful of circle sealing (6) is the sealing of ladder helical teeth.
6. by the vertical subdivision centrifugal compressor of horizontal air inlet and outlet cylinder claimed in claim 4, it is characterized in that: described Balance disc sealing (8) is provided with a plurality of recoil pores, described recoil pore is communicated with the gap between Balance disc sealing (8) and Balance disc (17) with outlet volute casing.
7. by the vertical subdivision centrifugal compressor of horizontal air inlet and outlet cylinder claimed in claim 1, it is characterized in that: the two ends of described main shaft (15) are rotationally connected with end cap (5) by split spring bearing (13) and integrated support bearing (14) respectively.
8. by the vertical subdivision centrifugal compressor of horizontal air inlet and outlet cylinder claimed in claim 7, it is characterized in that: described integrated support bearing (13) outside is provided with solid bearing gland (12).
9. by the vertical subdivision centrifugal compressor of horizontal air inlet and outlet cylinder claimed in claim 1, it is characterized in that: described casing comprises outer cage (1) and inner casing (2), the two ends of described outer cage (1) are all connected with end cap (5) by end cap connection set, and described dividing plate (3) is connected on inner casing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617981.5U CN203488382U8 (en) | 2013-10-08 | Vertical dividing centrifugal compressor with horizontal air inlet cylinder and horizontal air outlet cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617981.5U CN203488382U8 (en) | 2013-10-08 | Vertical dividing centrifugal compressor with horizontal air inlet cylinder and horizontal air outlet cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN203488382U true CN203488382U (en) | 2014-03-19 |
| CN203488382U8 CN203488382U8 (en) | 2016-04-27 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015158905A1 (en) * | 2014-04-17 | 2015-10-22 | Siemens Aktiengesellschaft | Arrangement of components in a fluid energy machine and assembly method |
| CN105805052A (en) * | 2014-12-31 | 2016-07-27 | 锦州新锦化机械制造有限公司 | Centrifugal compressor balance disk device |
| CN106545523A (en) * | 2016-10-28 | 2017-03-29 | 沈阳透平机械股份有限公司 | Prevent the end cover structure and processing method of vertical subdivision compressor operating gas leakage |
| CN107984166A (en) * | 2017-11-01 | 2018-05-04 | 沈阳透平机械股份有限公司 | The abdominal cavity processing method of horizonally split formula centrifugal compressor casing |
| CN111946661A (en) * | 2020-08-21 | 2020-11-17 | 内蒙古鄂尔多斯联合化工有限公司 | Synthetic gas compressor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015158905A1 (en) * | 2014-04-17 | 2015-10-22 | Siemens Aktiengesellschaft | Arrangement of components in a fluid energy machine and assembly method |
| CN106232948A (en) * | 2014-04-17 | 2016-12-14 | 西门子公司 | The device of the component of fluid dynamic machinery and assembly method |
| CN106232948B (en) * | 2014-04-17 | 2017-12-26 | 西门子公司 | The device and assembly method of the component of fluid dynamic machinery |
| CN105805052A (en) * | 2014-12-31 | 2016-07-27 | 锦州新锦化机械制造有限公司 | Centrifugal compressor balance disk device |
| CN106545523A (en) * | 2016-10-28 | 2017-03-29 | 沈阳透平机械股份有限公司 | Prevent the end cover structure and processing method of vertical subdivision compressor operating gas leakage |
| CN107984166A (en) * | 2017-11-01 | 2018-05-04 | 沈阳透平机械股份有限公司 | The abdominal cavity processing method of horizonally split formula centrifugal compressor casing |
| CN111946661A (en) * | 2020-08-21 | 2020-11-17 | 内蒙古鄂尔多斯联合化工有限公司 | Synthetic gas compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CGPU | Change to patent or to utility model | ||
| CU01 | Correction of utility model |
Correction item: Sixth inventor Correct: Pang Jiaxuan False: Pang Jiaxuan Number: 12 Page: The title page Volume: 30 |
|
| CU03 | Publication of corrected utility model |
Correction item: Sixth inventor Correct: Pang Jiaxuan False: Pang Jiaxuan Number: 12 Volume: 30 |
|
| ERR | Gazette correction | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |
|
| CX01 | Expiry of patent term |