CN202273856U - Dry gas sealed roots blower - Google Patents
Dry gas sealed roots blower Download PDFInfo
- Publication number
- CN202273856U CN202273856U CN2011204124912U CN201120412491U CN202273856U CN 202273856 U CN202273856 U CN 202273856U CN 2011204124912 U CN2011204124912 U CN 2011204124912U CN 201120412491 U CN201120412491 U CN 201120412491U CN 202273856 U CN202273856 U CN 202273856U
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- CN
- China
- Prior art keywords
- dry gas
- gear
- roots blower
- driven
- rotor portion
- 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.)
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Abstract
The utility model relates to a dry gas sealed roots blower. The dry gas sealed roots blower comprises a shell, dry gas sealing parts, a sub oil tank, a front bearing block, a framework oil seal, a wall plate, a driving rotor part, a driven rotor part, a gear box, a driving gear, a driven gear, a back bearing block and a clapboard, wherein the wall plate and the clapboard are respectively arranged at the two ends of the shell; the gear box is fixedly clamped on the back bearing block; the driving rotor part and the driven rotor part pass through the shell; the driving gear is fixedly clamped on the driving rotor part; the driven gear is fixedly clamped on the driven rotor part and is meshed with the driving gear; and the dry gas sealing parts are respectively arranged in the wall plate and the clapboard. The dry gas sealed roots blower provided by the utility model has the characteristics of small leaking amount, low abrasion, long service life, low energy consumption, small maintenance amount, no pollution of a medium to sealed fluid, and the like.
Description
Technical field
The utility model relates to a kind of blower, is specifically related to a kind of dry gas seals Roots blower, and it is applicable to and does not allow process gas to leak in the atmosphere but allow to intercept gas (for example nitrogen) to get into the situation in the processing medium.
Background technique
Dry gas seals is mechanical seal and the combining of gas seal; It is a kind of non-contact end seal; It is on the sealing surface of the rotating ring of mechanical seal or stationary ring (generally on the rotating ring), to have seal groove, when the dynamic and static ring high speed rotating, between both ends of the surface, forms one deck air film; Under the thrust that the gas pump effect produces, push dynamic and static ring open, two seal faces are not contacted.
Roots blower because of the structure more complicated, required precision is higher, price comparison is expensive, the maintenance is not too convenient, so generally seal request is higher.The shaft end seal of the Roots blower of existing technology generally adopts labyrinth, piston ring, outside framework oil seal group, filler or double mechanical seal etc., above seal form or leakage rate is big, or be contact seal, wearing and tearing are big, the life-span is short, energy consumption is high.
Therefore, for solving the problems of the technologies described above, necessary a kind of structure improved dry gas seals Roots blower that has is provided, to overcome said defective of the prior art.
The model utility content
For addressing the above problem, the purpose of the utility model is to provide a kind of good seal performance, the dry gas seals Roots blower of long service life.
For realizing above-mentioned purpose; The technological scheme that the utility model is taked is: a kind of dry gas seals Roots blower, and it comprises casing, dry gas seals portion, drop tank, front-end bearing pedestal, outside framework oil seal, wallboard, power rotor portion, driven rotor portion, gear-box, driving gear, driven gear, rear bearing block and dividing plate; Wherein, said wallboard and dividing plate are installed on the two ends of casing respectively; Said gear-box is immobilizated on the rear bearing block; Casing passes in said power rotor portion and driven rotor portion; Said driving gear is immobilizated in the power rotor portion; Said driven gear is immobilizated in the driven rotor portion, and it is meshed with driving gear; Said dry gas seals portion is installed on respectively in wallboard and the dividing plate.
The dry gas seals Roots blower of the utility model further is set to: said power rotor portion and driven rotor portion are supported on front-end bearing pedestal and the rear bearing block through bearing; Said Bearing Installation is in drop tank.
The dry gas seals Roots blower of the utility model further is set to: the end in said driven gear is equipped with a gear hub.
Compared with prior art, the utlity model has following beneficial effect: the dry gas seals Roots blower of the utility model has that leakage rate is few, wearing and tearing are little, the life-span is long, energy consumption is low, amount of maintenance is little, do not received characteristics such as medium pollution by sealed fluid flow.
Description of drawings
Fig. 1 is the elevation of the dry gas seals Roots blower of the utility model.
Fig. 2 is the sectional drawing of Fig. 1 along A-A.
Embodiment
See also Figure of description 1 with shown in the accompanying drawing 2; The utility model is a kind of dry gas seals Roots blower, and it is formed by component-assembled such as casing 1, dry gas seals portion 2, drop tank 3, front-end bearing pedestal 4, outside framework oil seal 5, wallboard 6, power rotor portion 8, driven rotor portion 9, gear-box 10, driving gear 11, driven gear 13, rear bearing block 15 and dividing plates 16.
Wherein, said wallboard 6 and dividing plate 7 are installed on the two ends of casing 1 respectively, and said dry gas seals portion 2 is installed on respectively in wallboard 6 and the dividing plate 7, and this dry gas seals portion 2, dividing plate 16 are formed the higher contactless shaft end seal of precision with wallboard 6.Alternative traditional " liquid lock " principle of said dry gas seals portion's 2 employings " gas obstruction " promptly substitutes high pressure sealing liquid, assurance processing medium realization " zero leakage " with band means of press seals gas; Sealing non-contact operation has that wearing and tearing are little, the life-span long, characteristic of low energy consumption.
Said gear-box 10 is immobilizated on the rear bearing block 15, and said driving gear 11, driven gear 13 are contained in this gear-box 10.End in said driven gear 13 is equipped with a gear hub 12, thereby is convenient to the mounting or dismounting of driven gear 13.
Casing 1 passes in said power rotor portion 8 and driven rotor portion 9, and is supported on front-end bearing pedestal 4 and the rear bearing block 15 through bearing 7,14.Said bearing 7,14 all is installed in the drop tank 3.
Said driving gear 11 is immobilizated in the power rotor portion 8; Said driven gear 13 is immobilizated in the driven rotor portion 9, and it is meshed with driving gear 11, thereby realizes transmission of power.
Further; Said dividing plate 16 is the component that requirement designs of installing and using according to dry gas seals portion 2; Planeness with corresponding precision; Parallelism, coaxality, perpendicularity and surface accuracy and physical dimension etc. have the vent 17 of corresponding specification simultaneously at the position of its regulation, so that be with the circulation of means of press seals gas.
Said wallboard 6 plays two effects in this blower; The first: enough installing spaces that dry gas seals portion 2 and bearing 7,14, front-end bearing pedestal 4, rear bearing block 15 are provided; It two is through cooperating the location that reaches from whole blower with dry gas seals portion 2 accurate, guaranteeing the installing and locating requirement of bearing 7,14 simultaneously.
Above embodiment is merely the preferred embodiment of this creation, not in order to limiting this creation, any modification of being made within all spirit and principles in this creation, is equal to replacement, improvement etc., all should be included within the protection domain of this creation.
Claims (3)
1. a dry gas seals Roots blower is characterized in that: comprise casing, dry gas seals portion, drop tank, front-end bearing pedestal, outside framework oil seal, wallboard, power rotor portion, driven rotor portion, gear-box, driving gear, driven gear, rear bearing block and dividing plate; Wherein, said wallboard and dividing plate are installed on the two ends of casing respectively; Said gear-box is immobilizated on the rear bearing block; Casing passes in said power rotor portion and driven rotor portion; Said driving gear is immobilizated in the power rotor portion; Said driven gear is immobilizated in the driven rotor portion, and it is meshed with driving gear; Said dry gas seals portion is installed on respectively in wallboard and the dividing plate.
2. dry gas seals Roots blower as claimed in claim 1 is characterized in that: said power rotor portion and driven rotor portion are supported on front-end bearing pedestal and the rear bearing block through bearing; Said Bearing Installation is in drop tank.
3. dry gas seals Roots blower as claimed in claim 2 is characterized in that: the end in said driven gear is equipped with a gear hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204124912U CN202273856U (en) | 2011-10-26 | 2011-10-26 | Dry gas sealed roots blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204124912U CN202273856U (en) | 2011-10-26 | 2011-10-26 | Dry gas sealed roots blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202273856U true CN202273856U (en) | 2012-06-13 |
Family
ID=46194217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204124912U Expired - Lifetime CN202273856U (en) | 2011-10-26 | 2011-10-26 | Dry gas sealed roots blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202273856U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696961A (en) * | 2013-12-30 | 2014-04-02 | 南京航空航天大学 | Birotor opposite rotating compressor |
| CN104100524A (en) * | 2014-07-31 | 2014-10-15 | 山东省章丘鼓风机股份有限公司 | Roots blower with combined sealing structure |
| CN104405621A (en) * | 2014-11-29 | 2015-03-11 | 山东明天机械有限公司 | Wallboard for steam compressor |
| CN108443152A (en) * | 2018-05-22 | 2018-08-24 | 南通石油化工机械制造厂有限公司 | A kind of roots blower |
-
2011
- 2011-10-26 CN CN2011204124912U patent/CN202273856U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696961A (en) * | 2013-12-30 | 2014-04-02 | 南京航空航天大学 | Birotor opposite rotating compressor |
| CN104100524A (en) * | 2014-07-31 | 2014-10-15 | 山东省章丘鼓风机股份有限公司 | Roots blower with combined sealing structure |
| CN104405621A (en) * | 2014-11-29 | 2015-03-11 | 山东明天机械有限公司 | Wallboard for steam compressor |
| CN108443152A (en) * | 2018-05-22 | 2018-08-24 | 南通石油化工机械制造厂有限公司 | A kind of roots blower |
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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: 20120613 |
|
| CX01 | Expiry of patent term |