CN103447165B - Main shaft sealing device of centrfugal machine - Google Patents
Main shaft sealing device of centrfugal machine Download PDFInfo
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- CN103447165B CN103447165B CN201310368898.3A CN201310368898A CN103447165B CN 103447165 B CN103447165 B CN 103447165B CN 201310368898 A CN201310368898 A CN 201310368898A CN 103447165 B CN103447165 B CN 103447165B
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- lip
- admission hole
- air admission
- type packing
- main shaft
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
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Abstract
The invention relates to a main shaft sealing device of a centrifugal machine. The main shaft sealing device comprises a main shaft, a jacket arranged on the main shaft and a gasket, wherein a bearing is sleeved on a bearing pedestal on the main shaft; a gland is arranged on the end surface of the bearing pedestal; a sealing sleeve and a spacer sleeve are arranged on the inner side of the gland; an expanding ring a as well as a lip-type sealing ring a and a lip-type sealing ring b which are sleeved on the jacket are arranged between the gland and the sealing sleeve; an expanding ring b as well as a lip-type sealing ring c and a lip-type sealing ring d which are sleeved on the jacket are arranged between the sealing sleeve and the spacer sleeve; the lip-type sealing ring a, the lip-type sealing ring b and the jacket define a sealing cavity a; the lip-type sealing ring b, the lip-type sealing ring c and the jacket deform a sealing cavity b; the lip-type sealing ring c, the lip-type sealing ring d and the jacket define a sealing cavity c. According to the main shaft sealing device, the three sealing cavities are formed among the jacket and the plurality of lip-type sealing rings, and gases in different pressures are introduced into the three sealing cavities, so that the lip-type sealing rings can be effectively sterilized, and the centrifugal machine can work under an aseptic condition.
Description
Technical field
The present invention relates to centrifuge, especially relate to a kind of centrifuge principal axis sealing device.
Background technology
Centrifuge is as a kind of solid-liquid separating equipment, be used in the industry such as chemical industry, pharmacy in a large number, but, at present in the aseptic occasion of pharmacy or food service industry, also use centrifuge as solid-liquid separating equipment in a large number, the centrifuge that gnotobasis uses generally needs high temperature and high pressure steam to carry out sterilizing, sealing device is as the device separating centrifugal chamber casing and lubricating chamber, inherently there is the problem of pollution, current most sealing device can not realize self sterilizing effective, thus constrains the application of centrifuge in aseptic industry.
Summary of the invention
The object of this invention is to provide a kind of centrifuge principal axis sealing device, it
can effectively prevent lubricating oil from leaking to rotary drum side, can solve centrifuge self can not the problem of effective sterilizing simultaneously.
The problem that will solve required for the present invention realizes by the following technical solutions:
A kind of centrifuge principal axis sealing device, comprise main shaft, be arranged on the sheath on main shaft and packing ring, main shaft one end is provided with rotary drum, bearing holder (housing, cover) is contained in the bearing block on main shaft, bearing block end face is provided with gland, it is characterized in that: be provided with sealing shroud and spacer inside gland, is provided with support ring a and is sleeved on lip-type packing a, the lip-type packing b on sheath between described gland and sealing shroud; The lip-type packing c being provided with support ring b between described sealing shroud and spacer and be sleeved on sheath and lip-type packing d; Lip-type packing a, lip-type packing b and sheath are formed with closed chamber a, and lip-type packing b, lip-type packing c and sheath are formed with closed chamber b, and lip-type packing c, lip-type packing d and sheath are formed with closed chamber c; Described gland is provided with air admission hole a, air admission hole b, air admission hole c, air admission hole d and outage a, outage b, and described air admission hole a, air admission hole b and outage a communicate with closed chamber a respectively; Described air admission hole c, outage b communicate with closed chamber b respectively, and described air admission hole d communicates with closed chamber c;
Air admission hole a of the present invention, air admission hole b, air admission hole c are connected with air inlet pipe with air admission hole d, and outage a, outage b are connected with discharging tube;
As optimization, described lip-type packing a and lip-type packing b is separately positioned on support ring a both sides, and its upper end and support ring a contact position are provided with sealing ring; Also spring is provided with between described packing ring and sheath; Described jacket surface is provided with anticorrosive anti-wear coating.
the present invention is by forming three closed chamber between sheath and some lip-type packings, three closed chamber communicate with the pore on gland respectively, by passing into the gas of different pressures to three closed chamber, can effectively realize carrying out sterilization to lip-type packing, can prevent lubricating oil from leaking to rotary drum side simultaneously, thus centrifugal function is worked in an aseptic environment.
Accompanying drawing explanation
Figure 1 shows that structural representation of the present invention;
Figure 2 shows that the C-C sectional view of Fig. 1;
Figure 3 shows that the enlarged drawing of D part in Fig. 1;
In figure 1, main shaft, 2, sheath, 3, gland, 4, sealing shroud, 5, support ring a, 6, support ring b, 7, spacer, 8, lip-type packing a, 9, lip-type packing b, 10, lip-type packing c, 11, lip-type packing d, 12, packing ring, 13, spring, 14, bearing, 15, air inlet pipe, 16, rotary drum, 17, sealing ring, 18, air admission hole a, 19, air admission hole b, 20, air admission hole c, 21, air admission hole d, 22, outage a, 23, outage b, 24, bearing block, 25, discharging tube, 26, closed chamber a, 27, closed chamber b, 28, closed chamber c.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further:
A kind of centrifuge principal axis sealing device, comprise main shaft 1, be arranged on the sheath 2 on main shaft 1 and packing ring 12, main shaft 1 one end is provided with rotary drum 16, bearing 14 is sleeved in the bearing block 24 on main shaft 1, bearing block 24 end face is provided with gland 3, is provided with sealing shroud 4 and spacer 7 inside gland 3, is provided with support ring a5 and is sleeved on lip-type packing a8, the lip-type packing b9 on sheath 2 between described gland 3 and sealing shroud 4; The lip-type packing c10 being provided with support ring b6 between described sealing shroud 4 and spacer 7 and be sleeved on sheath 2 and lip-type packing d11; Lip-type packing a8, lip-type packing b9 and sheath 2 are formed with closed chamber a26, and lip-type packing b9, lip-type packing c10 and sheath 2 are formed with closed chamber b27, and lip-type packing c10, lip-type packing d11 and sheath 2 are formed with closed chamber c28; Described gland 3 is provided with air admission hole a18, air admission hole b19, air admission hole c20, air admission hole d21 and outage a22, outage b23, and described air admission hole a18, air admission hole b19 and outage a22 communicate with closed chamber a26 respectively; Described air admission hole c20, outage b23 communicate with closed chamber b27 respectively, and described air admission hole d21 communicates with closed chamber c28;
Air admission hole a18 of the present invention, air admission hole b19, air admission hole c20 are connected with air inlet pipe 15 with air admission hole d21, and outage a22, outage b23 are connected with discharging tube 25;
As optimization, described lip-type packing a8 and lip-type packing b9 is separately positioned on support ring a5 both sides, and its upper end and support ring a5 contact position are provided with sealing ring 17, ensure that air-tightness; Spring 13 is also provided with between described packing ring 12 and sheath 2; Described sheath 2 surface is provided with anticorrosive anti-wear coating, greatly strengthen service life.
Under normal operating conditions of the present invention, only needing to pass into than rotary drum 16 side chamber pressure slightly high gas through air admission hole a18 and air admission hole d21 respectively to closed chamber a26 and closed chamber c28 by air inlet pipe 15 effectively can isolate the lubricating oil of bearing 14, thus
can prevent lubricating oil from leaking to rotary drum side.
When needs carry out steam sterilizing work to bowl 16 side cavity, first by air admission hole c20 to closed chamber b27, and simultaneously passing into the gas of pressure slightly larger than steam pressure to rotary drum 16 side cavity, the steam then passing into certain pressure to closed chamber a26 by air admission hole b19 carries out sterilization to it; Secondly, pass into the gas of pressure slightly larger than steam pressure by air admission hole b19 to closed chamber a26, then pass into steam to rotary drum 16 side cavity and sterilizing is carried out to it; Again, pass into the gas of pressure slightly larger than steam pressure by air admission hole c20 to closed chamber b27, then pass into steam to rotary drum 16 side cavity and closed chamber a26 simultaneously and carry out sterilization; Finally, pass into the gas slightly higher than rotary drum 16 side chamber pressure to closed chamber a26 and closed chamber c28 simultaneously, the abundant sterilizing works to sealing device can be completed by above-mentioned flow process, also can use as the main shaft seal of general occasion simultaneously.
Obviously; the above embodiment of the present invention is only for example of the present invention is clearly described; but be not used for limiting the scope of the invention, all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be limited by every claim.
Claims (4)
1. a centrifuge principal axis sealing device, comprise main shaft (1), be arranged on the sheath (2) on main shaft (1) and packing ring (12), main shaft (1) one end is provided with rotary drum (16), bearing (14) is sleeved in the bearing block (24) on main shaft (1), bearing block (24) end face is provided with gland (3), it is characterized in that: gland (3) inner side is provided with sealing shroud (4) and spacer (7), is provided with support ring a(5 between described gland (3) and sealing shroud (4)) and the lip-type packing a(8 that is sleeved on sheath (2)), lip-type packing b(9); Support ring b(6 is provided with between described sealing shroud (4) and spacer (7)) and the lip-type packing c(10 that is sleeved on sheath (2)) and lip-type packing d(11); Lip-type packing a(8), lip-type packing b(9) and sheath (2) be formed with closed chamber a(26), lip-type packing b(9), lip-type packing c(10) with sheath (2) be formed with closed chamber b(27), lip-type packing c(10), lip-type packing d(11) and sheath (2) be formed with closed chamber c(28); Described gland (3) is provided with air admission hole a(18), air admission hole b(19), air admission hole c(20), air admission hole d(21) and outage a(22), outage b(23),
described air admission hole a(18), air admission hole b(19) and outage a(22) respectively with closed chamber a(26) communicate; Described air admission hole c(20), outage b(23) respectively with closed chamber b(27) communicate, described air admission hole d(21) with closed chamber c(28) communicate;described air admission hole a(18), air admission hole b(19), air admission hole c(20) with air admission hole d(21) be connected with air inlet pipe (15), outage a(22), outage b(23) be connected with discharging tube (25).
2. a kind of centrifuge principal axis sealing device according to claim 1, it is characterized in that: described lip-type packing a(8) and lip-type packing b(9) be separately positioned on support ring a(5) both sides, its upper end and support ring a(5) contact position is provided with sealing ring (17).
3. a kind of centrifuge principal axis sealing device according to claim 1, is characterized in that: be provided with spring (13) between described sheath (2) and packing ring (12).
4. a kind of centrifuge principal axis sealing device according to claim 1, is characterized in that: described sheath (2) surface is provided with anticorrosive anti-wear coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310368898.3A CN103447165B (en) | 2013-08-22 | 2013-08-22 | Main shaft sealing device of centrfugal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310368898.3A CN103447165B (en) | 2013-08-22 | 2013-08-22 | Main shaft sealing device of centrfugal machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103447165A CN103447165A (en) | 2013-12-18 |
| CN103447165B true CN103447165B (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310368898.3A Active CN103447165B (en) | 2013-08-22 | 2013-08-22 | Main shaft sealing device of centrfugal machine |
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| Country | Link |
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| CN (1) | CN103447165B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503177B (en) * | 2020-11-04 | 2024-05-28 | 江苏赛德力制药机械制造有限公司 | Main shaft sealing device of horizontal centrifuge |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3729128A (en) * | 1971-09-23 | 1973-04-24 | Pennwalt Corp | High pressure centrifuge lubrication system |
| US4167243A (en) * | 1976-09-22 | 1979-09-11 | Thomas Broadbent & Sons Limited | Scroll discharge decanter centrifuges |
| CN2405071Y (en) * | 2000-01-31 | 2000-11-08 | 张家港美星顺峰机械有限公司 | Sealing arrangement for liquid |
| CN2625662Y (en) * | 2003-02-26 | 2004-07-14 | 泸州北方化学工业有限公司 | Combined sealing device for fore bearing of horizontal continuously pulling material centrifuger |
| CN101658822A (en) * | 2009-09-07 | 2010-03-03 | 江苏华大离心机制造有限公司 | Sealing device between transmission component and separation cavity in centrifuge |
| CN102588602A (en) * | 2012-02-01 | 2012-07-18 | 海申机电总厂(象山) | Composite sealing device for centrifugal machine bearing |
| CN203448194U (en) * | 2013-08-22 | 2014-02-26 | 江苏赛德力制药机械制造有限公司 | Sealing device of centrifugal machine main shaft |
-
2013
- 2013-08-22 CN CN201310368898.3A patent/CN103447165B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3729128A (en) * | 1971-09-23 | 1973-04-24 | Pennwalt Corp | High pressure centrifuge lubrication system |
| US4167243A (en) * | 1976-09-22 | 1979-09-11 | Thomas Broadbent & Sons Limited | Scroll discharge decanter centrifuges |
| CN2405071Y (en) * | 2000-01-31 | 2000-11-08 | 张家港美星顺峰机械有限公司 | Sealing arrangement for liquid |
| CN2625662Y (en) * | 2003-02-26 | 2004-07-14 | 泸州北方化学工业有限公司 | Combined sealing device for fore bearing of horizontal continuously pulling material centrifuger |
| CN101658822A (en) * | 2009-09-07 | 2010-03-03 | 江苏华大离心机制造有限公司 | Sealing device between transmission component and separation cavity in centrifuge |
| CN102588602A (en) * | 2012-02-01 | 2012-07-18 | 海申机电总厂(象山) | Composite sealing device for centrifugal machine bearing |
| CN203448194U (en) * | 2013-08-22 | 2014-02-26 | 江苏赛德力制药机械制造有限公司 | Sealing device of centrifugal machine main shaft |
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| Publication number | Publication date |
|---|---|
| CN103447165A (en) | 2013-12-18 |
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