CN203867984U - Horizontally-split multistage centrifugal compressor - Google Patents
Horizontally-split multistage centrifugal compressor Download PDFInfo
- Publication number
- CN203867984U CN203867984U CN201420064127.5U CN201420064127U CN203867984U CN 203867984 U CN203867984 U CN 203867984U CN 201420064127 U CN201420064127 U CN 201420064127U CN 203867984 U CN203867984 U CN 203867984U
- Authority
- CN
- China
- Prior art keywords
- compressor
- diffuser
- centrifugal compressor
- multistage centrifugal
- shell body
- 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
- 238000005452 bending Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000005242 forging Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 210000004907 gland Anatomy 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 3
- 229910001240 Maraging steel Inorganic materials 0.000 description 2
- 238000005194 fractionation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Abstract
A horizontally-split multistage centrifugal compressor is provided with a shell, a rotating shaft and one or more impellers fixed to the rotating shaft, wherein an air flow channel is formed between the impeller and the shell, a series of pressure expanders are contained in the channel, and each impeller and the corresponding pressure expander connected with the impeller form one stage of the multistage compressor. The horizontally-split multistage centrifugal compressor is characterized in that the shell of the compressor is cut into an upper shell body and a lower shell body from the horizontal plane of the rotating shaft, and the rotating shaft is installed on the lower shell body through sealing bodies arranged at the two ends of the rotating shaft; the lower shell body of the compressor is fixed to a supporting base, and an air inlet and an air outlet are formed in the front end and the rear end of the lower portion of the lower shell body; the upper shell body and the lower shell body of the compressor are sealed through rubber blankets and fixed through nuts and bolts. The impellers are of equal-strength closed structures with the rear portions bent, the pressure expanders are divided into bladeless pressure expanders, blade pressure expanders and combination of bladeless pressure expanders and blade pressure expanders. The horizontally-split multistage centrifugal compressor has outstanding features and excellent performance and worthy of being popularized with great effort.
Description
Technical field
The utility model belongs to the technical field of compressor, for the technical field of the multistage centrifugal pump that compresses or find time, is specifically related to the single-shaft multi-stage centrifugal compressor that a kind of level splits.
Background technique
Centrifugal compressor is widely used in petrochemical industry, metallurgical industry and other industrial technology field as pneumatic machinery, in the time of design centrifugal compressor, and the many-sided factor of essential consideration, as reduce production costs; Improve compressor operating efficiency.
The shell of centrifugal compressor adopts the structure of casting conventionally at present, and this structure makes body heaviness, and amount of finish is also large, and especially, for large centrifugal compressor, it is more outstanding that problem seems.
Chinese patent ZL200480039764.6 discloses a kind of " multistage centrifugal compressor and installation method thereof ", it comprise formed by second container and up-per semi-tank can horizontal opening container, the axle and a series of level that are provided with a series of rotors, each level sequentially comprises a series of lower clapboard and upper clapboard; Lower semi-ring and upper semi-ring, its feature is only that lower semi-diaphragm and the superior hemiseptum in each grade is respectively fixed mechanism strict constraint mutually.And fixed mechanism is only axial bolt.This design proposal also finds no any outstanding technique effect.
Chinese patent ZL200920013987.5 discloses " a kind of single-shaft multi-stage centrifugal compressor ", comprise rotor group part, stator group part, spring bearing and thrust-bearing, except the welded structure that is horizonally split of the casing in its stator group part, be divided into outside upper and lower casing the structure of remaining various parts and erection sequence there are no new feature.
Model utility content
The problem that the utility model exists for casting centrifugal compressor, has also considered the patent of the centrifugal compressor of the disclosed relevant level fractionation of seldom seeing already, has proposed to be different from the technological scheme of centrifugal compressor prior art, innovation.
The utility model proposes the multistage centrifugal compressor that a kind of level splits, there is housing; A rotatingshaft; The more than one impeller being fixed on rotatingshaft; Between impeller and housing, form air-flow path, include a series of Diffuser in passage, each impeller and coupled Diffuser form the one-level of multistage compressor, it is characterized in that:
(1) housing of compressor is upper and lower two bodies from the horizontal plane cutting of rotatingshaft, and rotatingshaft is placed on lower shell body by the seal at two ends;
(2) lower shell body of compressor is fixed on bearing, and its rear and front end, below is provided with inlet, outlet;
(3) upper and lower casing of compressor is with rubber seal, and fixes with nut, bolt.
The impeller of multistage centrifugal compressor of the present utility model is fixed on rotatingshaft, and impeller is adopted as backward bending type, equicohesive closed type structure.
The upper and lower casing inwall of multistage centrifugal compressor of the present utility model is provided with tongue-and-groove, in the time being provided with vane diffuser, and the tenon precision-fit of tongue-and-groove and vane diffuser root;
The upper and lower casing inwall of multistage centrifugal compressor of the present utility model is mounted with Diffuser, and its Diffuser is vaneless diffuser.
The upper and lower casing inwall of multistage centrifugal compressor of the present utility model is mounted with Diffuser, and its Diffuser is vane diffuser.
The upper and lower casing inwall of multistage centrifugal compressor of the present utility model is mounted with Diffuser, and its Diffuser is the combination of vaneless diffuser and vane diffuser.
Multistage centrifugal compressor of the present utility model, is characterized in that said multiple impellers on rotatingshaft, its afterbody be also provided with below thrust disc.
It is raw material that its upper and lower casing of multistage centrifugal compressor of the present utility model adopts steel plate, first with large-scale stamping press is existing, slab is stamped into semicircle cylindricality, then adopts respectively the process for machining such as car, weldering, milling to manufacture the structure that meets drawing requirement.
First advantage of multistage centrifugal compressor of the present utility model be lightweight, shock resistance good.The centrifugal compressor of casting technique, due to the limitation of metal bath mobility, its housing is both heavy, and also not fine and close, structural strength and shock resistance are all not as good as multistage centrifugal compressor excellent performance of the present invention.
The second advantage of multistage centrifugal compressor of the present utility model is that mounting or dismounting are convenient, is conducive to install and maintenance.When installation, first corresponding to impeller, thrust disc and seal etc. parts are arranged on rotatingshaft, rotatingshaft is placed in lower shell body, as long as by upper shell lifting be placed on lower shell body, be fixed up with nut, bolt just appropriate; When maintenance, as long as nut, bolt are dismantled, upper shell is raised up with crane, just can compressor be checked and be repaired.
Above-mentioned advantage, for large-scale multistage centrifugal compressor, embodies more outstandingly.The applicant, through signing after Non Disclosure Agreement, for the multistage centrifugal compressor that relevant petrochemical enterprise provides the level of several different sizes to split, is all subject to the high evaluation of user at present.
Brief description of the drawings
Fig. 1 is the overall sectional view of the multistage centrifugal compressor of level fractionation of the present utility model; Fig. 2 is the transverse views of compressor case; Fig. 3 is longitudinal (axially) view of compressor.In above-mentioned each figure: 1 rotatingshaft (main shaft); 2 bearings; 3 sealings; 4 dividing plates; 5 bearing suppories; 6 impellers; 7 thrust discs; 8 seals; 9 nuts; 10 bolts; 11 upper shells; 12 lower shell bodys; 13 axle sleeves; 14 axle head glands; 15 vane diffusers.
Embodiment
Below in conjunction with Figure of description, the utility model is further described and is supplemented.
The two-stage centrifugal compressor that embodiment's 1 level splits
As shown in Figure 1, 2, 3, process respectively rotatingshaft 1; Dividing plate; Upper and lower casing (10,11); Seal 2 parts such as grade.As first processed two backward bending types, equal strength double shrouded wheel 5 with 15Cr2Mo1 pearlite Mayari; With 40NiCrMo7 alloyed steel round bar shape forging car rotatingshaft processed (compressor main shaft); Adopt QT400-18 steel plate to be processed into dividing plate 3; And become semicircle cylindricality with Q345R plate stamping, adopt again car, brill, milling, weldering multiple working procedure are made upper and lower casing, upper and lower casing both sides are designed with outstanding flanging (or connecting part), in flanging, be drilled with fixing with hole in order to settle nut 8 and bolt 9, in flanging, be lined with rubber gasket (because of being sectional view, same domain technician is understood that Gu Tushang does not mark), before lower shell body bottom, two ends are welded with suction port and air outlet, and are provided with compressor bearing 2.Rear employing ZL104 aluminum alloy is made termination sealing 3; 1Cr13 Martensitic Stain Less Steel is made axle sleeve 13 and axle head gland 14.And then first impeller, thrust disc 7 and termination sealing are fixed on rotatingshaft, again rotatingshaft is arranged on lower shell body, finally again upper shell is placed on lower shell body, hole in the flanging of upper and lower casing both sides is alignd one by one, upper and lower casing is fixed as one with nuts and bolt, so the multistage centrifugal compressor that level of the present utility model splits is just manufactured, successful installation.
Three grades of centrifugal compressors that embodiment's 2 levels split
As shown in Figure 1, 2, 3, process respectively rotatingshaft 1; Dividing plate; Upper and lower casing (10,11); Seal 2 parts such as grade.As first processed three backward bending types, equal strength double shrouded wheel 5 by FV520B high-strength and high-ductility Maraging steel; With 40NiCrMo7 alloyed steel round bar shape forging car rotatingshaft processed (compressor main shaft); Adopt Q235 steel plate to be processed into dividing plate 3; And adopt car, brill with 16Mn forging, milling, weldering multiple working procedure are made upper and lower semi-cylindrical shells, upper and lower casing inwall is milled with diffuser vane 15, upper and lower casing both sides are designed with outstanding flanging (or connecting part), in flanging, be drilled with and fix with hole in order to settle nut 8 and bolt 9, in flanging, be lined with rubber gasket (because be sectional view, same domain technician is understood that Gu Tushang does not mark), before lower shell body bottom, two ends are welded with suction port and air outlet, and are provided with compressor bearing 2.Rear employing ZL102 aluminum alloy is made termination sealing 3; 1Cr13 Martensitic Stain Less Steel is made axle sleeve 13 and axle head gland 14.And then first impeller, thrust disc 7 and termination sealing are fixed on rotatingshaft, again rotatingshaft is arranged on lower shell body, finally again upper shell is placed on lower shell body, hole in the flanging of upper and lower casing both sides is alignd one by one, upper and lower casing is fixed as one with nuts and bolt, so the multistage centrifugal compressor that level of the present utility model splits is just manufactured, successful installation.
The level Four centrifugal compressor that embodiment's 3 levels split
As shown in Figure 1, 2, 3, process respectively rotatingshaft 1; Dividing plate; Upper and lower casing (10,11); Seal 2 parts such as grade.As being first processed into rear four curved, equal strength double shrouded wheels 5 by FV520B high-strength and high-ductility Maraging steel; With 40NiCrMo7 alloyed steel round bar shape forging car rotatingshaft processed (compressor main shaft); Adopt QT240-18 steel plate to be processed into dividing plate 3; And adopt car, brill with 16Mn low alloy steel forging, milling, weldering multiple working procedure are made semicircle cylindricality upper and lower casing, upper and lower casing inwall compartment of terrain mills out diffuser vane 15, both sides are designed with outstanding flanging (or connecting part), in flanging, be drilled with and fix with hole in order to settle nut 8 and bolt 9, in flanging, be lined with rubber gasket (because be sectional view, same domain technician is understood that Gu Tushang does not mark), before lower shell body bottom, two ends are welded with suction port and air outlet, and are provided with compressor bearing 2.Rear employing ZL104 aluminum alloy is made termination sealing 3; 1Cr13 Martensitic Stain Less Steel is made axle sleeve 13 and axle head gland 14.And then first impeller, thrust disc 7 and termination sealing are fixed on rotatingshaft, again rotatingshaft is arranged on lower shell body, finally again upper shell is placed on lower shell body, hole in the flanging of upper and lower casing both sides is alignd one by one, upper and lower casing is fixed as one with nuts and bolt, so the multistage centrifugal compressor that level of the present utility model splits is just manufactured, successful installation.
The various embodiments described above are only the design proposals proposing according to the different service conditions of different user, these schemes are signed after corresponding Non Disclosure Agreement same user, model machine is offered to user's special case that obtains comparatively satisfied effect on probation, therefore can also can also list more embodiments
The utility model does not limit to above-mentioned embodiment, for a person skilled in the art, form of the present utility model can be made corresponding change and amendment, and every change and amendment within spirit of the present utility model and principle, within all should being considered as comprising authority of the present utility model.
Claims (7)
1. the multistage centrifugal compressor that level splits, has housing; A rotatingshaft; The more than one impeller being fixed on rotatingshaft; Between impeller and housing, form air-flow path, include a series of Diffuser in passage, each impeller and coupled Diffuser form the one-level of multistage compressor, it is characterized in that:
(1) housing of compressor is upper and lower two bodies from the horizontal plane cutting of rotatingshaft, and rotatingshaft is placed on lower shell body by the seal at two ends;
(2) lower shell body of compressor is fixed on bearing, and its rear and front end, below is provided with inlet, outlet;
(3) upper and lower casing of compressor is with rubber seal, and fixes with nut, bolt.
2. the multistage centrifugal compressor splitting by level claimed in claim 1, is characterized in that being provided with impeller on said rotatingshaft, and impeller is adopted as backward bending type, equicohesive closed type structure.
3. the multistage centrifugal compressor splitting by level claimed in claim 1, is characterized in that said upper and lower casing inwall is provided with tongue-and-groove, in the time being provided with vane diffuser, and the tenon precision-fit of tongue-and-groove and vane diffuser root.
4. the multistage centrifugal compressor splitting by level claimed in claim 1, is characterized in that said upper and lower casing inwall is mounted with Diffuser, and its Diffuser is vaneless diffuser.
5. the multistage centrifugal compressor splitting by level claimed in claim 1, is characterized in that said upper and lower casing inwall is mounted with Diffuser, and its Diffuser is vane diffuser.
6. the multistage centrifugal compressor splitting by level claimed in claim 1, is characterized in that said upper and lower casing inwall is mounted with Diffuser, and its Diffuser is the combination of vaneless diffuser and vane diffuser.
7. the multistage centrifugal compressor splitting by level claimed in claim 1, is characterized in that being also provided with thrust disc after the impeller of afterbody of said multiple impellers on rotatingshaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064127.5U CN203867984U (en) | 2014-02-13 | 2014-02-13 | Horizontally-split multistage centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064127.5U CN203867984U (en) | 2014-02-13 | 2014-02-13 | Horizontally-split multistage centrifugal compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203867984U true CN203867984U (en) | 2014-10-08 |
Family
ID=51648943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420064127.5U Expired - Lifetime CN203867984U (en) | 2014-02-13 | 2014-02-13 | Horizontally-split multistage centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203867984U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832437A (en) * | 2015-05-28 | 2015-08-12 | 重庆美的通用制冷设备有限公司 | Multi-stage centrifugal compressor |
| CN107387463A (en) * | 2017-08-29 | 2017-11-24 | 南京磁谷科技有限公司 | A kind of compressor scroll mounting structure |
-
2014
- 2014-02-13 CN CN201420064127.5U patent/CN203867984U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832437A (en) * | 2015-05-28 | 2015-08-12 | 重庆美的通用制冷设备有限公司 | Multi-stage centrifugal compressor |
| CN107387463A (en) * | 2017-08-29 | 2017-11-24 | 南京磁谷科技有限公司 | A kind of compressor scroll mounting structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103807185A (en) | Multistage centrifugal compressor capable of being detached horizontally | |
| US10634157B2 (en) | Centrifugal compressor impeller with non-linear leading edge and associated design method | |
| CN105485022B (en) | Sectional multi-stage centrifugal pump | |
| CN201377436Y (en) | Structure for double-suction multistage horizontal split pump | |
| EP2742242B1 (en) | Pump with double-suction impeller generating axial thrust | |
| CN203867984U (en) | Horizontally-split multistage centrifugal compressor | |
| CN105351206A (en) | Segmentation type multi-stage centrifugal pump | |
| CN106438457A (en) | Half-opened impeller and low-flow super high-lift multiple-stage centrifugal pump with same | |
| CN206495822U (en) | A kind of new and effective welding centrifugal blower | |
| CN202926661U (en) | Centrifugal compressor | |
| US20110286840A1 (en) | Liquid ring pump with liner | |
| CN200975360Y (en) | Vertical type multi-stage pump with intermediate bearing | |
| CN204041535U (en) | Multistage centrifugal pump middle section structure and multistage centrifugal pump stage casing | |
| CN205064307U (en) | Multistage centrifugal compressor of perpendicular split | |
| CN201650801U (en) | Double-impeller centrifugal blower | |
| CN101922467B (en) | Centrifugal blower | |
| CN202065242U (en) | Intermediate stage blade of air compressor with hub diameter of Phi 762 | |
| CN101392750B (en) | Dry vacuum pump | |
| CN201071840Y (en) | Improved submersible axial flow pump | |
| CN205446075U (en) | Vortex pump | |
| CN206246409U (en) | The centrifugal multistage pump multiple centrifugal pump of half-opened impeller and the low discharge ultrahigh pump lift using the impeller | |
| CN201401338Y (en) | Horizontal multi-stage stainless steel centrifugal pump | |
| CN201078333Y (en) | Single stage double inlet centrifugal pump | |
| CN205714945U (en) | A kind of axial flow fan vane wheel of blade not decile | |
| CN105201872A (en) | Vertically-dismounted multi-stage centrifugal compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210118 Granted publication date: 20141008 |
|
| PP01 | Preservation of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141008 |
|
| CX01 | Expiry of patent term | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20240213 Granted publication date: 20141008 |
|
| PD01 | Discharge of preservation of patent |