CN103447165A - Main shaft sealing device of centrfugal machine - Google Patents
Main shaft sealing device of centrfugal machine Download PDFInfo
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- CN103447165A CN103447165A CN2013103688983A CN201310368898A CN103447165A CN 103447165 A CN103447165 A CN 103447165A CN 2013103688983 A CN2013103688983 A CN 2013103688983A CN 201310368898 A CN201310368898 A CN 201310368898A CN 103447165 A CN103447165 A CN 103447165A
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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)
- Sealing Devices (AREA)
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, use in the industries such as chemical industry, pharmacy in a large number, but, in the aseptic occasion of pharmacy or food service industry, also do not use in a large number at present centrifuges as solid-liquid separating equipment, the centrifuge that gnotobasis is used generally needs high temperature and high pressure steam to carry out sterilizing, sealing device is as the device of separating centrifugal chamber casing and lubricating chamber, just there is the problem of polluting in itself, the sealing device of most can not be realized effectively self sterilizing, thereby has restricted the application of centrifuge in aseptic industry.
Summary of the invention
The purpose of this invention is to provide a kind of centrifuge principal axis sealing device, it
can effectively prevent that lubricating oil from leaking to the rotary drum side, can solve the problem that centrifuge self can not 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 sheath and packing ring on main shaft, main shaft one end is equipped with rotary drum, bearing holder (housing, cover) is contained in the bearing block on main shaft, the bearing block end face is provided with gland, it is characterized in that: the gland inboard is provided with sealing shroud and spacer, is provided with support ring a between described gland and sealing shroud and is sleeved on lip-type packing a, the lip-type packing b on sheath; Be provided with support ring b between described sealing shroud and spacer and be sleeved on lip-type packing c and the lip-type packing d on sheath; 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 and air admission hole d are connected with air inlet pipe, and outage a, outage b are connected with discharging tube;
As optimization, described lip-type packing a and lip-type packing b are separately positioned on ，Qi upper end, support ring a both sides and support ring a contact position is provided with sealing ring; Also be provided with spring between described packing ring and sheath; Described jacket surface is provided with the 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 three closed chamber being passed into to the gas of different pressures, can effectively realize lip-type packing is carried out to sterilization, can prevent that lubricating oil from leaking to the rotary drum side, thereby centrifugal function is worked under gnotobasis simultaneously.
The accompanying drawing explanation
Figure 1 shows that structural representation of the present invention;
Figure 2 shows that the C-C cutaway 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.
The specific embodiment
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 sheath 2 and packing ring 12 on main shaft 1, main shaft 1 one ends are equipped with rotary drum 16, bearing 14 is sleeved in the bearing block 24 on main shaft 1, bearing block 24 end faces are provided with gland 3, and gland 3 inboards are provided with sealing shroud 4 and spacer 7, and 4 of described gland 3 and sealing shrouds are provided with support ring a5 and are sleeved on lip-type packing a8, the lip-type packing b9 on sheath 2; 7 of described sealing shroud 4 and spacers are provided with support ring b6 and are sleeved on lip-type packing c10 and the lip-type packing d11 on sheath 2; 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 and air admission hole d21 are connected with air inlet pipe 15, and outage a22, outage b23 are connected with discharging tube 25;
As optimization, described lip-type packing a8 and lip-type packing b9 are separately positioned on ，Qi upper end, support ring a5 both sides and support ring a5 contact position is provided with sealing ring 17, has guaranteed air-tightness; 2 of described packing ring 12 and sheaths also are provided with spring 13; Described sheath 2 surfaces are provided with the anticorrosive anti-wear coating, have greatly strengthened service life.
In normal operation situation of the present invention, only need to pass into the gas slightly higher than rotary drum 16 side chamber pressures to closed chamber a26 and closed chamber c28 respectively through air admission hole a18 and air admission hole d21 by air inlet pipe 15 can effectively isolate the lubricating oil of bearing 14, thereby
can prevent that lubricating oil from leaking to the rotary drum side.
When needs carry out steam sterilizing work to bowl 16 side cavitys, at first by air admission hole c20 to closed chamber b27, and passing into to rotary drum 16 side cavitys the gas that pressure is slightly larger than steam pressure simultaneously, the steam that then by air admission hole b19, to closed chamber a26, is passed into certain pressure carries out sterilization to it; Secondly, by air admission hole b19, to closed chamber a26, pass into the gas that pressure is slightly larger than steam pressure, then to rotary drum 16 side cavitys, pass into steam it is carried out to sterilizing; Again, by air admission hole c20, to closed chamber b27, pass into the gas that pressure is slightly larger than steam pressure, then to rotary drum 16 side cavitys and closed chamber a26, pass into steam simultaneously and carry out sterilization; Finally, to closed chamber a26 and closed chamber c28, pass into than the slightly high gas of rotary drum 16 side chamber pressure simultaneously and get final product, by above-mentioned flow process, can complete the abundant sterilizing works to sealing device, 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 clearly is described; but be not used for limiting the scope of the invention, all technical schemes that are equal to 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 sheath (2) and packing ring (12) on main shaft (1), main shaft (1) one end is equipped 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) inboard is provided with sealing shroud (4) and spacer (7), between described gland (3) and sealing shroud (4), is provided with support ring a(5) and be sleeved on the lip-type packing a(8 on sheath (2)), lip-type packing b(9); Be provided with support ring b(6 between described sealing shroud (4) and spacer (7)) and be sleeved on the lip-type packing c(10 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) and air admission hole d(21) with air inlet pipe (15), be connected, outage a(22), outage b(23) with discharging tube (25), be connected.
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) ，Qi upper end, both sides 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: between described sheath (2) and packing ring (12), be provided with spring (13).
4. a kind of centrifuge principal axis sealing device according to claim 1, it is characterized in that: described sheath (2) surface is provided with the 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 |
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| Publication Number | Publication Date |
|---|---|
| CN103447165A true CN103447165A (en) | 2013-12-18 |
| CN103447165B 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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| CN (1) | CN103447165B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503177A (en) * | 2020-11-04 | 2021-03-16 | 江苏赛德力制药机械制造有限公司 | Spindle 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503177A (en) * | 2020-11-04 | 2021-03-16 | 江苏赛德力制药机械制造有限公司 | Spindle sealing device of horizontal centrifuge |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103447165B (en) | 2015-07-22 |
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