CN204437288U - A kind of inter-stage sealing axle sleeve structure of multistage centrifugal blower - Google Patents
A kind of inter-stage sealing axle sleeve structure of multistage centrifugal blower Download PDFInfo
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- CN204437288U CN204437288U CN201520025646.5U CN201520025646U CN204437288U CN 204437288 U CN204437288 U CN 204437288U CN 201520025646 U CN201520025646 U CN 201520025646U CN 204437288 U CN204437288 U CN 204437288U
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- blower
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Abstract
The utility model discloses a kind of inter-stage sealing axle sleeve structure of multistage centrifugal blower, comprise the rotating shaft coordinating with it installation in blower interstage casings, described rotating shaft external stability axle sleeve, described axle sleeve is provided with in skewed convex stripe.The utility model by arranging towards the skewed convex stripe of high pressure side on the axle sleeve of existing sealing configuration, axle sleeve is with allowing gas rotating while rotating shaft high speed rotating, form a lot of air film, play better seal action, and be arranged on axle sleeve due to convex stripe, change convenient, price is low, improves the efficiency of blower, also facilitate maintenance, avoid the problem must changing shell after damaging in prior art.
Description
Technical field
The utility model relates to a kind of inter-stage sealing axle sleeve structure of multistage centrifugal blower.
Background technique
Multistage centrifugal blower is widely used in environmental protection industry (epi), and the inter-stage sealing problem of this kind of blower, more and more comes into one's own, and inter-stage sealing full cooperation by axle sleeve and casing seals.What now general multistage centrifugal blower adopted is that the mode of processing teeth groove above casing seals, this kind is sealed with very large straight-through effect, difficulty of processing is high, after damaging, replacement cost is high, and easily at teeth groove place accumulation small impurities, sealing tooth is easily corroded, and quantity of gas leakage is large, reduces the working efficiency of blower.
Model utility content
The utility model proposes a kind of inter-stage sealing axle sleeve structure of multistage centrifugal blower, by arranging towards the skewed convex stripe of high pressure side on the axle sleeve of existing sealing configuration, axle sleeve is with allowing gas rotating while rotating shaft high speed rotating, form a lot of air film, play better seal action.
The utility model realizes particular by following technological scheme:
An inter-stage sealing axle sleeve structure for multistage centrifugal blower, comprises the rotating shaft coordinating with it installation in blower interstage casings, and described rotating shaft external stability axle sleeve, described axle sleeve is provided with in skewed convex stripe.
Further, described convex stripe is at least 1, and arranges at equal intervals.
The beneficial effect that the utility model produces is: axle sleeve can allow gas rotating with the convex stripe tilted while rotating shaft high speed rotating, form a lot of air film, play better seal action, and be arranged on axle sleeve due to convex stripe, change and also facilitate, price is low, improves the efficiency of blower, also facilitate maintenance, avoid in prior art, damaging the problem must changing shell.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model structural representation;
Fig. 2 is the schematic diagram of the utility model axle sleeve.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As Fig. 1, as indicated with 2, a kind of inter-stage sealing axle sleeve structure of multistage centrifugal blower, comprise the rotating shaft 2 coordinating with it installation in blower interstage casings 1, described rotating shaft 2 external stability axle sleeve 3, described axle sleeve 3 is provided with in skewed convex stripe 4, described convex stripe 4 is at least 1, and arranges at equal intervals.
Working principle of the present utility model is: rotating shaft 2 is in edge diagram paper from inside to outside rotation process, axle sleeve 3 also rotates thereupon, and be arranged in a lot of convex stripe 4 rotary course on axle sleeve and produce a lot of air film, true dip direction due to convex stripe 4 can be set to towards centrifugal blower internal high pressure side, therefore the active force of air film is towards high pressure side, barrier gas drains to low pressure side by high pressure side, plays good sealing effect.Further because this convex stripe is arranged on axle sleeve, once be damaged, only need to change axle sleeve, keep in repair very convenient.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. an inter-stage sealing axle sleeve structure for multistage centrifugal blower, is characterized in that, comprise the rotating shaft coordinating with it installation in blower interstage casings, and described rotating shaft external stability axle sleeve, described axle sleeve is provided with in skewed convex stripe.
2. the inter-stage sealing axle sleeve structure of a kind of multistage centrifugal blower as claimed in claim 1, it is characterized in that, described convex stripe is at least 1, and arranges at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520025646.5U CN204437288U (en) | 2015-01-15 | 2015-01-15 | A kind of inter-stage sealing axle sleeve structure of multistage centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520025646.5U CN204437288U (en) | 2015-01-15 | 2015-01-15 | A kind of inter-stage sealing axle sleeve structure of multistage centrifugal blower |
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| Publication Number | Publication Date |
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| CN204437288U true CN204437288U (en) | 2015-07-01 |
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| CN201520025646.5U Active CN204437288U (en) | 2015-01-15 | 2015-01-15 | A kind of inter-stage sealing axle sleeve structure of multistage centrifugal blower |
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| CN (1) | CN204437288U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481923A (en) * | 2016-11-22 | 2017-03-08 | 广东技术师范学院 | A kind of high-speed joint |
| CN108180160A (en) * | 2017-12-27 | 2018-06-19 | 安徽虎渡科达流体机械有限公司 | A kind of centrifugal blower sealing device |
-
2015
- 2015-01-15 CN CN201520025646.5U patent/CN204437288U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481923A (en) * | 2016-11-22 | 2017-03-08 | 广东技术师范学院 | A kind of high-speed joint |
| CN108180160A (en) * | 2017-12-27 | 2018-06-19 | 安徽虎渡科达流体机械有限公司 | A kind of centrifugal blower sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 430000 No.2 Xingfu 1st Road, Wushu village, Miaoshan, Jiangxia District, Wuhan City, Hubei Province Patentee after: GREATALL POWER Co.,Ltd. Address before: 430000 No.2 Xingfu 1st Road, Wushu village, Miaoshan, Jiangxia District, Wuhan City, Hubei Province Patentee before: WUHAN GREATALL MACHINERY Co.,Ltd. |