CN101628261A - Sealing device between transmission shaft and sealing base in centrifuge - Google Patents
Sealing device between transmission shaft and sealing base in centrifuge Download PDFInfo
- Publication number
- CN101628261A CN101628261A CN200910144504A CN200910144504A CN101628261A CN 101628261 A CN101628261 A CN 101628261A CN 200910144504 A CN200910144504 A CN 200910144504A CN 200910144504 A CN200910144504 A CN 200910144504A CN 101628261 A CN101628261 A CN 101628261A
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- sealing
- annular
- centrifuge
- transmission shaft
- air intake
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- 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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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention discloses a sealing device between a transmission shaft and a sealing base in a centrifuge, which is capable of preventing gas leakage in a casing inner cavity. The inner wall of the sealing base is provided with two annular sealing slots and an annular intake slot located between the two annular sealing slots; the sealing base is additionally provided with an air intake passage communicated with the annular intake slot; the opening of the air intake passage is provided with an air intake joint; two annular sealing slots are provided with sealing rings which are sleeved on a drum shaft. In the invention, the transmission shaft is provided with two sealing rings between which the air intake passage is arranged, and air pressure in the air intake passage is higher than that in the casing inner cavity in the operation process of the centrifuge, thereby effectively preventing gas in the casing inner cavity from leaking into surrounding air so as to avoid damage to operators caused by toxic gas.
Description
Technical field
The present invention relates to centrifuge, refer more particularly to the sealing device between the power transmission shaft and seal receptacle in the centrifuge.
Background technology
In some special industries such as chemical industry, pharmacy and power plant, can not under the environment of aerobic, separate feed liquid.During use, at first to the air displacement in the chassis cavity be fallen with inert gas, and continuous topping up in chassis cavity at work, guarantee the air pressure in the chassis cavity, prevent that the air of outside from entering into chassis cavity.Just since the air pressure in the chassis cavity than outside height, the gas leakage that has toxicity that evaporates in the feed liquid separation process damages operating personnel's human body in ambient air.
Summary of the invention
Technical problem to be solved by this invention is: the sealing device between the power transmission shaft and seal receptacle in a kind of centrifuge that prevents the gas leakage in the chassis cavity is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the sealing device in the centrifuge between power transmission shaft and the seal receptacle, offer two annular seal grooves and the annular air inlet duct between two annular seal grooves on the inwall of seal receptacle, also offer the inlet channel that communicates with annular air inlet duct in the seal receptacle, the opening part of inlet channel is provided with inlet suction port; Be provided with sealing ring in described two annular seal grooves, seal ring set is contained on the rotary drum axle.
Described sealing ring is made by antifriction self-lubricating material.
The invention has the beneficial effects as follows: the present invention is provided with the two seals ring on power transmission shaft, and between this two seals ring, be provided with inlet channel, centrifuge in the course of the work, all the time guarantee that air pressure in the inlet channel is than the air pressure height in the chassis cavity, so guaranteed that the gas in the chassis cavity can not be leaked in the surrounding air effectively, thereby avoided toxic gas that operating personnel's human body is damaged.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Among the figure: 1, power transmission shaft, 2, seal receptacle, 21, seal groove, 22, seal groove, 23, air inlet duct, 24, inlet channel, 3, sealing ring, 4, chassis cavity, 5, inlet suction port.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As shown in Figure 1, sealing device in the centrifuge of the present invention between power transmission shaft and the seal receptacle, offer two annular seal grooves 21 and 22 and annular air inlet ducts 23 between two annular seal grooves 21 and 22 on the inwall of seal receptacle 2, also offer the inlet channel 24 that communicates with annular air inlet duct 23 in the seal receptacle 2, the opening part of inlet channel 24 is provided with inlet suction port 5; Be provided with sealing ring 3 in described two annular seal grooves 21 and 22, sealing ring 3 is sleeved on the power transmission shaft 1; In the present embodiment, described sealing ring 3 is made by antifriction self-lubricating material.
During use, at first to the air displacement in the chassis cavity 4 be fallen with inert gas, then, in chassis cavity 4 and inlet channel 24, feed inert gas respectively, make the air pressure of inlet channel 24 greater than the air pressure in the chassis cavity 4, and the air pressure in the chassis cavity 4 is pressed greater than outside atmosphere, makes the air of outside can not enter into chassis cavity 4, and the gas in the chassis cavity 4 can not be leaked in the atmosphere.
Claims (2)
1. the sealing device between power transmission shaft and the seal receptacle in the centrifuge, it is characterized in that: offer two annular seal grooves and the annular air inlet duct between two annular seal grooves on the inwall of seal receptacle, also offer the inlet channel that communicates with annular air inlet duct in the seal receptacle, the opening part of inlet channel is provided with inlet suction port; Be provided with sealing ring in described two annular seal grooves, seal ring set is contained on the rotary drum axle.
2. sealing device as claimed in claim 1 is characterized in that: described sealing ring is made by antifriction self-lubricating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910144504A CN101628261A (en) | 2009-08-13 | 2009-08-13 | Sealing device between transmission shaft and sealing base in centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910144504A CN101628261A (en) | 2009-08-13 | 2009-08-13 | Sealing device between transmission shaft and sealing base in centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101628261A true CN101628261A (en) | 2010-01-20 |
Family
ID=41573638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910144504A Pending CN101628261A (en) | 2009-08-13 | 2009-08-13 | Sealing device between transmission shaft and sealing base in centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101628261A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103917299A (en) * | 2011-09-08 | 2014-07-09 | 阿尔法拉瓦尔股份有限公司 | A centrifugal separator |
| CN105220226A (en) * | 2014-06-20 | 2016-01-06 | 北京北方微电子基地设备工艺研究中心有限责任公司 | A kind of tank sealed structure, tank and silicon epitaxy equipment |
-
2009
- 2009-08-13 CN CN200910144504A patent/CN101628261A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103917299A (en) * | 2011-09-08 | 2014-07-09 | 阿尔法拉瓦尔股份有限公司 | A centrifugal separator |
| CN103917299B (en) * | 2011-09-08 | 2016-01-20 | 阿尔法拉瓦尔股份有限公司 | Whizzer |
| US9931646B2 (en) | 2011-09-08 | 2018-04-03 | Alfa Laval Corporate Ab | Centrifugal separator having a forcing device to create a radial leak flow |
| CN105220226A (en) * | 2014-06-20 | 2016-01-06 | 北京北方微电子基地设备工艺研究中心有限责任公司 | A kind of tank sealed structure, tank and silicon epitaxy equipment |
| CN105220226B (en) * | 2014-06-20 | 2018-05-25 | 北京北方华创微电子装备有限公司 | A kind of sink sealing structure, sink and silicon epitaxy equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100120 |