CN202273859U - Combined sealing roots blower - Google Patents
Combined sealing roots blower Download PDFInfo
- Publication number
- CN202273859U CN202273859U CN201120413236XU CN201120413236U CN202273859U CN 202273859 U CN202273859 U CN 202273859U CN 201120413236X U CN201120413236X U CN 201120413236XU CN 201120413236 U CN201120413236 U CN 201120413236U CN 202273859 U CN202273859 U CN 202273859U
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- CN
- China
- Prior art keywords
- sealing
- roots blower
- wallboard
- seal
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a combined sealing roots blower. The combined sealing roots blower comprises a shell, a wall plate, a sub oil tank and a gear box, wherein the wall plate and the gear box are sequentially arranged on the left side of the shell; the wall plate and the sub oil tank are sequentially arranged on the right side of the shell; a pair of parallel driven rotor part and driving rotor part is arranged in the shell; a pair of meshed synchronizing gears is arranged on the driving rotor part and the driven rotor part; and sealing structure combinations of a maze sealing component, an inflatable sealing component, a filler sealing component, and an O-shaped ring sealing component are respectively arranged in the wall plate. The combined sealing roots blower provided by the utility model has the advantages of good sealing effect, long service life when the blower is used to seal under a dust-containing medium, and the like.
Description
Technical field
The utility model relates to a kind of blast apparatus, is specifically related to a kind of combination seal Roots blower, belongs to the blower technical field.
Background technique
Roots blower is a kind of equipment that is used for conveying gas, and the cylinder that it mainly is made up of casing, front and back wallboard is located at parts such as drop tank on the forward and backward wallboard, gear tank and forms; Principal and subordinate's rotor set of pair of parallel is housed, and the intermeshing synchromesh gear of external tooth in the casing, mostly adopts horizontal type structure, airflow direction is to go out under enterprising, and labyrinth or piston ring sealing are adopted in its four axial seals usually.Adopt the Roots blower of this structure, when carrying dust-laden, inflammable, explosive and mordant medium, the sealing effect of this structure blower fan is poor, and it is very short to seal working life simultaneously.
Therefore, for solving the problems of the technologies described above, necessary a kind of structure improved combination seal 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 sealing effect, the Roots blower of medium containing dust lower seal long service life.
For realizing above-mentioned purpose, the technological scheme that the utility model is taked is: a kind of combination seal Roots blower, and it comprises casing, wallboard, drop tank and gear-box; Wherein, in said casing left side wallboard and gear-box are installed successively; In said casing right side wallboard and drop tank are installed successively; The driven rotor portion and the power rotor portion of pair of parallel are housed in the casing; The a pair of synchromesh gear that is meshed is set in said power rotor portion and driven rotor portion; In said wallboard, be separately installed with the sealing configuration combination of labyrinth seal, gas-flow closure spare, packing seal element and O type circle Sealing.
The combination seal Roots blower of the utility model further is set to: said synchromesh gear is contained in the gear-box.
The combination seal Roots blower of the utility model further is set to: said labyrinth seal, gas-flow closure spare, packing seal element and O type circle Sealing are connected between wallboard and the power rotor portion; Said labyrinth seal, gas-flow closure spare, packing seal element and O type circle Sealing also are connected between wallboard and the driven rotor portion.
Compared with prior art; The utlity model has following beneficial effect: the neutral gases such as nitrogen that the combination seal Roots blower of the utility model has adopted the sealing configuration combination of labyrinth seal, gas-flow closure spare, packing seal element and O type circle Sealing to charge into; Its pressure ratio Roots blower outlet pressure exceeds 50～100kPa; Medium containing dust in the casing there is certain purging effect, has reduced the wearing and tearing of dust, prolonged the working life of whole sealing follow-up sealing; The neutral gases such as nitrogen that when process of conveying inflammable, explosive and mordant medium, charge into simultaneously have certain back-pressure effect to inflammable, the explosive medium in the casing; Reduced leaking outside of sealed medium; Reduced of the corrosion of corrosive medium simultaneously, prolonged the working life of whole sealing follow-up sealing.
The compound mode that labyrinth, filler and gas-flow closure spare form has formed labyrinth, the sealing of filler to inflating own from another point of view again, has reduced the consumption that charges into gas, makes combination seal reasonable more economically.
Packing seal element belongs to contact seal; Its dust loading of dielectric gas after stopping through front end labyrinth and gas-flow closure and inflammable, explosive and corrosivity composition reduce significantly; Utilization through this contact seal of packing seal; Further increased the resistance that medium leaks, thereby the leakage rate of hazardous medium has been reduced to minimum; What be both that this packing seal adopts is the filler (GFO) of a kind of wear-resisting, high temperature resistant, selflubricating, long-life type, very beneficial to the reduction and the prolongation in working life of sealing combination maintenance cost.
Description of drawings
Fig. 1 is the structural representation of the combination seal Roots blower of the utility model.
Fig. 2 is the sealed structural representation of the combination seal Roots blower of the utility model.
Fig. 3 is the partial enlarged drawing of Fig. 2.
Embodiment
See also shown in Figure of description 1 to the accompanying drawing 3, the utility model is a kind of combination seal Roots blower, and it is by casing 1, wallboard 2, and several parts such as drop tank 3 and gear-box 4 are formed.
Wherein, wallboard 2 and gear-box 4 are installed successively in said casing 1 left side; Wallboard 2 and drop tank 3 are installed in said casing 1 right side successively.The power rotor portion 51 and driven rotor portion 52 of pair of parallel are housed in the casing 1; In said power rotor portion 51 and driven rotor portion 52, a pair of synchromesh gear that is meshed 6 is set.Said synchromesh gear 6 is contained in the gear-box 4.
The Roots blower greatest improvement part of the utility model is: the sealing configuration combination 7 that in said wallboard 2, is separately installed with labyrinth seal 71, gas-flow closure spare 72, packing seal element 73 and O type circle Sealing 74.Said labyrinth seal 71, gas-flow closure spare 72, packing seal element 73 and O type circle Sealing 74 are connected between wallboard 2 and the power rotor portion 51; Said labyrinth seal 71, gas-flow closure spare 72, packing seal element 73 and O type circle Sealing 74 also are connected between wallboard 2 and the driven rotor portion 52.
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 combination seal Roots blower is characterized in that: comprise casing, wallboard, drop tank and gear-box; Wherein, in said casing left side wallboard and gear-box are installed successively; In said casing right side wallboard and drop tank are installed successively; The driven rotor portion and the power rotor portion of pair of parallel are housed in the casing; The a pair of synchromesh gear that is meshed is set in said power rotor portion and driven rotor portion; In said wallboard, be separately installed with the sealing configuration combination of labyrinth seal, gas-flow closure spare, packing seal element and O type circle Sealing.
2. combination seal Roots blower as claimed in claim 1 is characterized in that: said synchromesh gear is contained in the gear-box.
3. combination seal Roots blower as claimed in claim 2 is characterized in that: said labyrinth seal, gas-flow closure spare, packing seal element and O type circle Sealing are connected between wallboard and the power rotor portion; Said labyrinth seal, gas-flow closure spare, packing seal element and O type circle Sealing also are connected between wallboard and the driven rotor portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120413236XU CN202273859U (en) | 2011-10-26 | 2011-10-26 | Combined sealing roots blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120413236XU CN202273859U (en) | 2011-10-26 | 2011-10-26 | Combined sealing roots blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202273859U true CN202273859U (en) | 2012-06-13 |
Family
ID=46194220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120413236XU Expired - Lifetime CN202273859U (en) | 2011-10-26 | 2011-10-26 | Combined sealing roots blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202273859U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104976116A (en) * | 2015-06-25 | 2015-10-14 | 山东省章丘鼓风机股份有限公司 | Roots blower for conveying steam medium |
| CN105649987A (en) * | 2014-11-11 | 2016-06-08 | 中国科学院沈阳科学仪器股份有限公司 | Compound seal used for vacuum pump |
| CN108317080A (en) * | 2018-04-17 | 2018-07-24 | 山东省章丘鼓风机股份有限公司 | A kind of explosion-proof Roots blower |
-
2011
- 2011-10-26 CN CN201120413236XU patent/CN202273859U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105649987A (en) * | 2014-11-11 | 2016-06-08 | 中国科学院沈阳科学仪器股份有限公司 | Compound seal used for vacuum pump |
| CN104976116A (en) * | 2015-06-25 | 2015-10-14 | 山东省章丘鼓风机股份有限公司 | Roots blower for conveying steam medium |
| CN108317080A (en) * | 2018-04-17 | 2018-07-24 | 山东省章丘鼓风机股份有限公司 | A kind of explosion-proof Roots blower |
| CN108317080B (en) * | 2018-04-17 | 2024-03-01 | 山东省章丘鼓风机股份有限公司 | Explosion-proof 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 |