CN201470487U - Sealing device between transmission shaft and sealing seat in centrifugal machine - Google Patents
Sealing device between transmission shaft and sealing seat in centrifugal machine Download PDFInfo
- Publication number
- CN201470487U CN201470487U CN2009201869432U CN200920186943U CN201470487U CN 201470487 U CN201470487 U CN 201470487U CN 2009201869432 U CN2009201869432 U CN 2009201869432U CN 200920186943 U CN200920186943 U CN 200920186943U CN 201470487 U CN201470487 U CN 201470487U
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- CN
- China
- Prior art keywords
- sealing
- air inlet
- ring
- transmission shaft
- inlet channel
- 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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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Centrifugal Separators (AREA)
Abstract
The utility model discloses a sealing device between a transmission shaft and a sealing seat in a centrifugal machine, which can prevent gas in a casing inner cavity to leak, wherein the inner wall of the sealing seat is provided with two ring sealing slots and a ring air inlet slot which is arranged between the two ring sealing slots, an air inlet channel which is communicated with the ring air inlet slot is further arranged in the sealing seat, an opening of the air inlet channel is provided with an air inlet joint, sealing rings are arranged in the two ring sealing slots, and the sealing rings are sleeved on a rotating drum shaft. The two sealing rings are arranged on the transmission shaft, the air inlet channel is arranged between the two sealing rings, during the working process of the centrifugal machine, the air pressure in the air inlet channel is always guaranteed to be higher than the air pressure in the casing inner cavity, thereby effectively guaranteeing gas in the casing inner cavity not to leak to the surrounding air, and preventing toxic gas from harming human bodies of operators.
Description
Technical field
The utility model relates to centrifuge, refers 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.
The utility model content
Technical problem to be solved in the utility model 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 adopted in the utility model 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 beneficial effects of the utility model are: the utility model 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 utility model;
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 utility model in detail.
As shown in Figure 1, sealing device in the centrifuge described in the utility model 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 |
|---|---|---|---|
| CN2009201869432U CN201470487U (en) | 2009-08-13 | 2009-08-13 | Sealing device between transmission shaft and sealing seat in centrifugal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201869432U CN201470487U (en) | 2009-08-13 | 2009-08-13 | Sealing device between transmission shaft and sealing seat in centrifugal machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201470487U true CN201470487U (en) | 2010-05-19 |
Family
ID=42406725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201869432U Expired - Lifetime CN201470487U (en) | 2009-08-13 | 2009-08-13 | Sealing device between transmission shaft and sealing seat in centrifugal machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201470487U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785382A (en) * | 2015-03-30 | 2015-07-22 | 绿水分离设备股份有限公司 | Closed anti-explosion mechanism of horizontal spiral discharging sedimentation centrifuge |
| CN112403690A (en) * | 2019-08-22 | 2021-02-26 | 晨光生物科技集团股份有限公司 | Explosion-proof horizontal centrifuge |
-
2009
- 2009-08-13 CN CN2009201869432U patent/CN201470487U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785382A (en) * | 2015-03-30 | 2015-07-22 | 绿水分离设备股份有限公司 | Closed anti-explosion mechanism of horizontal spiral discharging sedimentation centrifuge |
| CN104785382B (en) * | 2015-03-30 | 2018-03-16 | 绿水股份有限公司 | Horizontal spiral discharge sedimentation centrifuge tight anti-explosion structure |
| CN112403690A (en) * | 2019-08-22 | 2021-02-26 | 晨光生物科技集团股份有限公司 | Explosion-proof horizontal centrifuge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 215600 No. 8, Star Road, Zhangjiagang Economic Development Zone, Jiangsu, China Patentee after: Jiangsu Huada Centrifuge Co., Ltd. Address before: 215600 chess Road North 8, Zhangjiagang Economic Development Zone, Jiangsu Patentee before: Jiangsu Huada Huada Centrifuge Manufacturing Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 215600 Jiangsu Huada centrifuge Manufacturing Co., Ltd., No. 8, Qin Xing Road, Zhangjiagang economic and Technological Development Zone, Suzhou, Jiangsu Patentee after: Jiangsu Huada Huada Centrifuge Manufacturing Co., Ltd. Address before: 215600 No. 8, Star Road, Zhangjiagang Economic Development Zone, Jiangsu, China Patentee before: Jiangsu Huada Centrifuge Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |