CN203146328U - Roots blower used for conveying combustible gases - Google Patents
Roots blower used for conveying combustible gases Download PDFInfo
- Publication number
- CN203146328U CN203146328U CN 201320187455 CN201320187455U CN203146328U CN 203146328 U CN203146328 U CN 203146328U CN 201320187455 CN201320187455 CN 201320187455 CN 201320187455 U CN201320187455 U CN 201320187455U CN 203146328 U CN203146328 U CN 203146328U
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- blower
- shell
- roots blower
- rotating shaft
- sealing
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Abstract
The utility model relates to a blower, particularly to a reinforced and sealed roots blower and specifically to a roots blower used for conveying combustible gases. The roots blower comprises a blower shell, wherein a main rotating shaft and an auxiliary rotating shaft are arranged in the shell, mutually engaged three-blade impellers are installed on the rotating shafts, the main rotating shaft is connected with a drive motor through a shaft coupler, an air inlet is arranged at the upper end of the blower shell, an air outlet is arranged at the lower side face of the blower shell, the blower shell is composed of an upper shell and a lower shell which are in butt joint with each other, the main rotating shaft and the auxiliary rotating shaft are connected with the shell through bearings and are arranged in the inner cavity of the shell; a sealing layer is arranged outside the shell, and a high pressure inert gas is filled in the sealing layer to realize gas seal; and a plurality layers of combined sealing devices are arranged between the driving end of the main rotating shaft and the shell. The roots blower provided by the utility model is high in efficiency, low in energy consumption, good in sealing property and capable of effectively preventing harmful gas leakage and explosion accidents, reducing the harm to the minimum, and meanwhile, ensuring the stable production of enterprises and normal operation of equipment.
Description
Technical field
The utility model relates to a kind of blower, and especially the Roots blower of reinforced seal specifically is a kind of Roots blower for delivery of inflammable gas.
Background technique
Be used for the conveying of inflammable gas at present, also use blower to carry usually as the conveying of gases such as coal gas, biogas, rock gas, because the medium of carrying has inflammable and explosive property, cause easily that under the operating mode use condition of high rotating speed, high pressure gas leaks or explosive accident, therefore very high to the requirement of blower fan sealing, structural material, should prevent that extraneous air from entering in the machine He behind the inflammable gas volume mixing certain proportion by shaft end seal blasts, and prevents that again the interior inflammable gas of machine is to external leakage.At present this type of blower that uses because of the structure more complicated, required precision is higher, price comparison is expensive, the maintenance is not too convenient.
And when using Roots blower as power, need further seal existing Roots blower could be passable.The general mode of seal ring or sealing oil that adopts seals at present, and big for its leakage rate of existing blower, wearing and tearing are big, the life-span is short, energy consumption is high, is unsuitable for the conveying of combustible gas.Therefore, for solving the problems of the technologies described above, necessary provide a kind of have structure improvedly have airtight and the multi-sealed Roots blower of mechanical seal, to overcome described defective of the prior art.
Summary of the invention
The purpose of this utility model is exactly the problem that exists for the solution prior art, and has designed a kind of Roots blower for delivery of inflammable gas, has the Safety performance height, the function of the anti-combustible gas leakage of good seal performance.
The technical solution of the utility model is: a kind of Roots blower for delivery of inflammable gas, comprise blower casing, be provided with major and minor rotating shaft in the housing, the intermeshing triplicate blade impeller that is equipped with in the rotating shaft, wherein main shaft is connected with drive motor by coupling, the upper end of Blower Housing is provided with intake grill and downside is provided with exhaust outlet, and being docked by upper shell and lower shell body of Blower Housing forms, and described major and minor rotating shaft is connected and is arranged on the inner chamber of housing with housing by bearing; The outside of described housing is provided with sealing layer, has high-pressure inert gas to carry out gas seal in the sealing layer; Has the multi-layer combined type seal arrangement between the drive end of described main shaft and the housing.
In order to reduce production costs, and satisfy requirement of explosion proof, described high-pressure inert gas is nitrogen.
For the enhanced leaktightness performance, described multi-layer combined type seal arrangement comprises parallel floating type carbocyclic ring sealing and labyrinth sealing of installing.
For the enhanced leaktightness performance, the outside of described multi-layer combined type seal arrangement is the high pressure nitrogen sealing.
In order to improve Safety performance, be provided with Fuel Gas Leak Alarm and pressure alarm in the described sealing layer.
For intensity and the quality that guarantees impeller, described impeller is welded to one another shaping or blade and wheel disc integral body by wheel cap, blade and wheel disc and mills system back and wheel cap welding.
In order to satisfy the different sealing requirement, can use sealing oil in the described sealing layer instead and carry out oil sealing.
The beneficial effects of the utility model can draw by such scheme: the poorly sealed problem when the invention solves existing Roots blower for the inflammable gas conveying rationally increases sealing layer and seal arrangement.The utlity model has the efficient height, it is low to consume energy, and good seal can effectively stop the generation of poisonous gas leakage and explosive accident, and at utmost harm reduction has ensured the steady production of enterprise, the normal operation of equipment simultaneously.
This shows that the utility model compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is apparent.
Description of drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional structure schematic representation of Fig. 1;
Fig. 3 is the structure for amplifying schematic representation at A place among Fig. 1.
Wherein, 1 is intake grill, and 2 is housing, and 3 is exhaust outlet, and 4 is sealing layer, and 5 is main shaft, and 6 is auxiliary spindle, and 7 is gas leakage alarm and pressure alarm, and 8 is floating type carbocyclic ring sealing, and 9 are labyrinth sealing.
Embodiment:
In order to understand the utility model better, explain mode of execution of the present utility model in detail below in conjunction with accompanying drawing.
Embodiment: a kind of Roots blower for delivery of inflammable gas, comprise blower casing 2, be provided with main shaft 5 and auxiliary spindle 6 in the housing 2, the intermeshing triplicate blade impeller that is equipped with in the major and minor rotating shaft, described impeller are welded to one another shaping or blade and wheel disc integral body by wheel cap, blade and wheel disc and mill system back and wheel cap welding.Wherein main shaft 5 is connected with drive motor by coupling.The upper end of Blower Housing 2 is provided with intake grill 1 and downside is provided with exhaust outlet 3, and being docked by upper shell and lower shell body of Blower Housing 2 forms, and described major and minor rotating shaft is connected and is arranged on the inner chamber of housing 2 by bearing and housing 2; The outside of described housing 2 is provided with sealing layer 4, has high pressure nitrogen to carry out gas seal in the sealing layer 4; Has the multi-layer combined type seal arrangement between the drive end of described main shaft 5 and the housing 2.The multi-layer combined type seal arrangement comprises parallel floating type carbocyclic ring sealing 8 and labyrinth sealing 9 of installing.Be provided with Fuel Gas Leak Alarm and pressure alarm 7 in the sealing layer 4.
As other sealing means, in sealing layer 4, can use sealing oil instead and carry out oil sealing, it is isolated to reach effective air.
Above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example; the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement also should belong to protection domain of the present utility model.
Claims (7)
1. Roots blower for delivery of inflammable gas, comprise blower casing, be provided with major and minor rotating shaft in the housing, the intermeshing triplicate blade impeller that is equipped with in the rotating shaft, wherein main shaft is connected with drive motor by coupling, the upper end of Blower Housing is provided with intake grill and downside is provided with exhaust outlet, and being docked by upper shell and lower shell body of Blower Housing forms, and it is characterized in that: described major and minor rotating shaft is connected and is arranged on the inner chamber of housing with housing by bearing; The outside of described housing is provided with sealing layer, has high-pressure inert gas to carry out gas seal in the sealing layer; Has the multi-layer combined type seal arrangement between the drive end of described main shaft and the housing.
2. the Roots blower for delivery of inflammable gas as claimed in claim 1, it is characterized in that: described high-pressure inert gas is nitrogen.
3. the Roots blower for delivery of inflammable gas as claimed in claim 1 is characterized in that: described multi-layer combined type seal arrangement comprises parallel floating type carbocyclic ring sealing and labyrinth sealing of installing.
4. the Roots blower for delivery of inflammable gas as claimed in claim 3 is characterized in that: the outside of described multi-layer combined type seal arrangement is the high pressure nitrogen sealing.
5. the Roots blower for delivery of inflammable gas as claimed in claim 1 is characterized in that: be provided with Fuel Gas Leak Alarm and pressure alarm in the described sealing layer.
6. the Roots blower for delivery of inflammable gas as claimed in claim 1 is characterized in that: described impeller is welded to one another shaping or blade and wheel disc integral body by wheel cap, blade and wheel disc and mills system back and wheel cap welding.
7. the Roots blower for delivery of inflammable gas as claimed in claim 1 is characterized in that: can use sealing oil in the described sealing layer instead and seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187455 CN203146328U (en) | 2013-04-15 | 2013-04-15 | Roots blower used for conveying combustible gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187455 CN203146328U (en) | 2013-04-15 | 2013-04-15 | Roots blower used for conveying combustible gases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146328U true CN203146328U (en) | 2013-08-21 |
Family
ID=48973858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320187455 Expired - Fee Related CN203146328U (en) | 2013-04-15 | 2013-04-15 | Roots blower used for conveying combustible gases |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146328U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927541A (en) * | 2016-05-26 | 2016-09-07 | 无锡联合超滤净化设备科技有限公司 | Blowing or induced draft device for pressurizing combustible and explosive as well as corrosive gases |
-
2013
- 2013-04-15 CN CN 201320187455 patent/CN203146328U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927541A (en) * | 2016-05-26 | 2016-09-07 | 无锡联合超滤净化设备科技有限公司 | Blowing or induced draft device for pressurizing combustible and explosive as well as corrosive gases |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JI'NAN LIGUAN MACHINERY EQUIPMENT CO., LTD. Free format text: FORMER OWNER: LIANG JIPENG Effective date: 20140714 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ma Qinping Inventor before: Liang Jipeng |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIANG JIPENG TO: MA QINPING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140714 Address after: 250100 No. 44 Industrial South Road, hi tech Zone, Shandong, Ji'nan Patentee after: Ji'nan Li Li Machinery Equipment Co., Ltd. Address before: 250100, room 5, unit 11, 102, old school, dormitory second, Shandong University, Shandong, Ji'nan Patentee before: Liang Jipeng |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20170415 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |