CN202108750U - Multi-stage sewage treatment centrifugal blower - Google Patents
Multi-stage sewage treatment centrifugal blower Download PDFInfo
- Publication number
- CN202108750U CN202108750U CN2011202231500U CN201120223150U CN202108750U CN 202108750 U CN202108750 U CN 202108750U CN 2011202231500 U CN2011202231500 U CN 2011202231500U CN 201120223150 U CN201120223150 U CN 201120223150U CN 202108750 U CN202108750 U CN 202108750U
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- casing
- sleeved
- shell
- round nut
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Abstract
The utility model relates to the field of the centrifugal blower, more particularly to a multi-stage sewage treatment centrifugal blower. A left sealing shaft sleeve is sleeved on a spindle from left to right and tightly pressed by a round nut; a rolling bearing is sleeved on the spindle from left to right and tightly pressed by the round nut; an impeller, a middle shaft sleeve and a right sealing shaft sleeve are sleeved on the spindle in sequence from right to left and tightly pressed by the round nuts; the rolling bearing is sleeved on the spindle from right to left and tightly pressed by the round nut; therefore, a rotor part is formed. A left shell and a right shell are respectively in flanged connection with a middle shell; a clapboard and the shells are located by spigots; a left bearing box is in flanged connection with the left shell; and the right bearing box is in flanged connection with the right shell as well; therefore, a stator part is formed. The left sealer is inserted into the left shell to form stage-teeth carbon ring seal together with the left sealing shaft sleeve; and a backup nitrogen filling hole is formed at the spigot of the left shell and the left sealer. By adopting the technical scheme, the shaft end of the shell adopts stage-teeth carbon ring seal, so that the leakage loss of the blower is reduced, the efficiency of the whole machine is greatly increased, the power consumption of the blower is reduced as well and the service life of the blower is prolonged.
Description
Technical field
The utility model relates to the centrifugal blower field, is a kind of multi-level small-flow centrifugal blower that is used for sewage treatment.
Background technique
Along with fast development of national economy, environmental protection and energy-saving and emission-reduction have become the theme of growing interest.Country gives priority to day to water contamination preventing field and handles urban sewage treatment technology and complete sets of equipment more than 200,000 tons; Handle small and medium-sized cities sewage disposal technology and complete sets of equipment below 100,000 tons accelerated development day; Traditional sewage treatment has Roots blower, multistage blowers etc. with blower fan; Existing single-stage high-speed centrifugal blower also is widely used in the sewage treatment area, but Roots blower efficient is low, noise is big, air feed is inhomogeneous, operation and maintenance cost is used height, belongs to obsolete product at sewage treatment area; Single-stage high-speed centrifugal blower complex structure, manufacturing require high, and be high in small flow occasion manufacture cost.
Summary of the invention
The purpose of the utility model be to provide that a kind of efficient is high, noise is low, good seal performance, maintenance are simple, operate steadily, the multi-level small-flow centrifugal blower is used in low energy consumption, the sewage treatment of characteristics cheaply.
The technological scheme of the utility model is: left sealing axle sleeve 9 is sleeved on the main shaft 7 from left to right, compresses with round nut 8; Rolling bearing 5 is sleeved on the main shaft 7 from left to right, compresses with round nut 6; Impeller 12, Intermediate shaft sleeve 2, right sealing axle sleeve 16 are sleeved on the main shaft 7 successively from right to left, compress with round nut 18; Rolling bearing 21 is sleeved on the main shaft 7 from right to left, compresses with round nut 20, thereby constitutes rotor portion.Left casing 1, right casing 19 adopt flange couplings with middle casing 14 respectively, and dividing plate 13 adopts seam 15 location with casing, and left bearing case 4 and left casing 1, right bearing case 22 all adopt flange coupling with right casing 19, thereby constitute stationary part.Left side sealing 3 embeds in the left casing 1, constitutes the sealing of stage teeth carbocyclic ring with left sealing axle sleeve 9, and left casing 1 is provided with the subsequent use nitrogen hole of filling with left side sealing 3 stop portions; Right sealing 17 embeds in the right casing 19, constitutes the sealing of stage teeth carbocyclic ring with right sealing axle sleeve 16, and the sealing 11 of import circle constitutes the sealing of inter-stage sawtooth with impeller 12, dividing plate sealing 10 with Intermediate shaft sleeve 2.
Owing to taked technique scheme, the casing axle head adopts the sealing of stage teeth carbocyclic ring, has reduced the leakage loss of blower fan, has improved overall efficiency greatly, has also reduced the wasted work of blower fan, has prolonged the working life of blower fan.
Description of drawings
Fig. 1 is the structural representation of the utility model.
In the drawings: 1, left casing; 2, Intermediate shaft sleeve; 3, left side sealing; 4, left bearing case; 5, rolling bearing; 6, round nut; 7, main shaft; 8, round nut; 9, left sealing axle sleeve; 10, dividing plate sealing; 11, import circle sealing; 12, impeller; 13, dividing plate; 14, middle casing; 15, seam; 16, right sealing axle sleeve; 17, right sealing; 18, round nut; 19, right casing; 20, round nut; 21, rolling bearing; 22, right bearing case.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
In Fig. 1, left casing 1, right casing 19, middle casing 14 and dividing plate 13 inner flow passages are all done sand blast, the brushing polishing material again on the surface, and impeller 12 inner flow passages are all done shot blast, thereby have improved the smoothness of blower fan inner flow passage, have reduced frictional loss; Left side sealing 3 constitutes the sealing of stage teeth carbocyclic ring with left sealing axle sleeve 9, and the stage teeth number of teeth is 10～15 teeth, and left casing 1 is provided with the subsequent use nitrogen hole of filling with left side sealing 3 stop portions; Right sealing 17 constitutes the sealing of stage teeth carbocyclic ring with right sealing axle sleeve 16; The stage teeth number of teeth is 10～15 teeth; The sealing 11 of import circle constitutes the sealing of inter-stage sawtooth with impeller 12, dividing plate sealing 10 with Intermediate shaft sleeve 2, and 3～5 of the numbers of teeth have reduced to reveal loss; Improve complete blower efficient greatly, reduced wasted work.Separation structure in the whole machine using is convenient to installation and maintenance.
The material of impeller 12 adopts ZL104, and the impeller number is 3～9, and main shaft 7 adopts the 35CrMo alloyed steel; The intensity and the rigidity of main shaft 7 have been improved; Under multistage situation, more can guarantee the smooth operation of blower fan, reduce fan noise, left bearing case 4 adopts water-cooled; Improve the working life of rolling bearing 5, rolling bearing 21, thereby increased blower fan working life.
Claims (1)
1. a multistage sewage treatment centrifugal blower is characterized in that being that left sealing axle sleeve (9) is sleeved on the main shaft (7) from left to right, compresses with round nut (8); Rolling bearing (5) is sleeved on the main shaft (7) from left to right, compresses with round nut (6); Impeller (12), Intermediate shaft sleeve (2), right sealing axle sleeve (16) are sleeved on the main shaft (7) successively from right to left, compress with round nut (18); Rolling bearing (21) is sleeved on the main shaft (7) from right to left, compresses with round nut (20), thereby constitutes rotor portion; Left side casing (1), right casing (19) adopt flange coupling with middle casing (14) respectively; Dividing plate (13) adopts seam (15) location with casing; Left bearing case (4) all adopts flange coupling with left casing (1), right bearing case (22) with right casing (19), thereby constitutes stationary part; Left side sealing (3) embeds in the left casing (1), constitutes the sealing of stage teeth carbocyclic ring with left sealing axle sleeve (9), and left casing (1) is provided with the subsequent use nitrogen hole of filling with left side sealing (3) stop portion; Right sealing (17) embeds in the right casing (19), constitutes the sealing of stage teeth carbocyclic ring with right sealing axle sleeve (16), and import circle sealing (11) constitutes the sealing of inter-stage sawtooth with impeller (12), dividing plate sealing (10) with Intermediate shaft sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202231500U CN202108750U (en) | 2011-06-22 | 2011-06-22 | Multi-stage sewage treatment centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202231500U CN202108750U (en) | 2011-06-22 | 2011-06-22 | Multi-stage sewage treatment centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202108750U true CN202108750U (en) | 2012-01-11 |
Family
ID=45434186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202231500U Expired - Fee Related CN202108750U (en) | 2011-06-22 | 2011-06-22 | Multi-stage sewage treatment centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202108750U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573652A (en) * | 2012-07-20 | 2014-02-12 | 湖北省风机厂有限公司 | Steel-plate welded multistage high-speed oxygen supercharging blower |
| CN106050692A (en) * | 2016-05-24 | 2016-10-26 | 湖北省风机厂有限公司 | High-pressure chlorine multi-stage centrifugal blower |
-
2011
- 2011-06-22 CN CN2011202231500U patent/CN202108750U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573652A (en) * | 2012-07-20 | 2014-02-12 | 湖北省风机厂有限公司 | Steel-plate welded multistage high-speed oxygen supercharging blower |
| CN106050692A (en) * | 2016-05-24 | 2016-10-26 | 湖北省风机厂有限公司 | High-pressure chlorine multi-stage centrifugal blower |
| CN106050692B (en) * | 2016-05-24 | 2019-04-16 | 湖北省风机厂有限公司 | A kind of high pressure chlorine multistage centrifugal blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20130622 |