CN203796939U - Dry gas seal device for low-speed reaction kettle in medical industry - Google Patents
Dry gas seal device for low-speed reaction kettle in medical industry Download PDFInfo
- Publication number
- CN203796939U CN203796939U CN201420114576.6U CN201420114576U CN203796939U CN 203796939 U CN203796939 U CN 203796939U CN 201420114576 U CN201420114576 U CN 201420114576U CN 203796939 U CN203796939 U CN 203796939U
- Authority
- CN
- China
- Prior art keywords
- dry gas
- end cap
- seal
- gland
- low speed
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 claims abstract description 15
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 5
- 210000004907 gland Anatomy 0.000 claims description 24
- 239000003921 oil Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 235000021050 feed intake Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a dry gas seal device for a low-speed reaction kettle in the medical industry. A shaft sleeve of the device is connected to a rotating shaft in a sleeved mode. The outside of the shaft sleeve is connected with a medium side end cover, a flange, a seal cavity, a medium side dry gas seal pair, an atmosphere side dry gas seal pair, a pressing cover, an atmosphere side end cover, a bearing and the like in a sleeved mode. A seal chamber is formed among the medium side end cover, the seal cavity, the pressing cover and the shaft sleeve, and the medium side dry gas seal pair and the atmosphere side dry gas seal pair are made of silicon carbide. Back-to-back type double-end-face dry gas seal is adopted for the device, seal gas with pressure which is slightly higher than medium pressure is used, and leakage of process media is prevented. Through a hard-to-hard friction pair of the device, the amount of abrasive dust produced during working is greatly reduced, pollution, caused by impurities, to materials is reduced, and product quality is improved. Meanwhile, the device effectively solves the problems that if sealing members are imported, cost is high and the delivery cycle is long; once seal fails, replacement can be conducted rapidly, and the problem of long-time production halts is solved.
Description
Technical field
The utility model relates to a kind of seal arrangement, especially relates to a kind of medicinal industry low speed reactor dry gas sealing device.
Background technique
Medicinal industry reactor is most for the slow-speed of revolution, low-pressure equipment, because installed power is large, disposable feed intake very many.Medicinal industry has very strict requirement to the quality of product, and therefore, medicinal reactor has very strict seal request, should prevent that material from leaking, and prevents that again material from being polluted.If seal arrangement is unreliable, may cause material from leakage, material to pollute, bring about great losses to producing.
With regard to present status in China, domestic medicinal reactor seal arrangement generally adopts the friction pair of hard material and carbon graphite composition, all exists the problem that sealing intensity is inadequate, has the problem such as material from leakage, pollution.At present, the basic dependence on import of pharmaceuticals industry seal arrangement, not only price is high, the delivery cycle is long, and exist seal arrangement without spare part, after sales service without problems such as guarantees, once sealing is broken down, and will cause medical equipment to stop production for a long time, brings tremendous influence to production.
Meanwhile, consider the particularity of pharmaceuticals industry, conventional seals generally adopts the composition of carbon graphite as friction pair.The dust that carbon graphite wearing and tearing in the running produce is the maximum interference of medicinal equipment, easily causes material to pollute, and brings massive losses.
Model utility content
The purpose of this utility model is to provide a kind of medicinal industry low speed reactor dry gas sealing device, and sealing device performance is reliable, and long service life avoids material to impact sealability, avoids sealing wear to pollute material.
For achieving the above object, technical solution adopted in the utility model is:
This device adopts formula daul-side dry round gas seal back-to-back, utilizes the blanket gas of pressure a little more than pressure medium, prevents that processing medium from leaking.
This device comprises axle sleeve, and axle sleeve is socketed in rotating shaft; Axle sleeve is socketed side medium end cap, flange, Seal cage, side medium dry gas seals pair, atmospheric side dry gas seals pair, gland, atmospheric side end cap, bearing outward; Wherein, described side medium dry gas seals pair comprises side medium stationary ring and side medium rotating ring, described atmospheric side dry gas seals pair comprises atmospheric side stationary ring and atmospheric side rotating ring, described side medium stationary ring, side medium rotating ring, atmospheric side stationary ring and atmospheric side rotating ring material therefor are silicon carbide, are all socketed on the inner side of Seal cage; Described flange is socketed in side medium end cap outside, and Seal cage is connected with side medium end cap and flange, and sealing medium entrance is set on Seal cage; Gland is connected with Seal cage, is provided with sealing medium outlet on gland; Between described side medium end cap, Seal cage, gland and axle sleeve, form a Seal cage; Gland is connected with atmospheric side end cap, and atmospheric side end cap connects positioning block; Described bearing housing is connected to gland inner side.
Preferably, axle sleeve is socketed spring seat outward, and spring socket sleeve is connected in Seal cage, is provided with spring on spring seat, and both ends of the spring connects Support cushion.
Preferably, between described gland and axle sleeve, between described atmospheric side end cap and axle sleeve, be equipped with oil sealing; Oil sealing is positioned at bearing both sides.
Preferably, this device is also provided with dust collection cup, and described dust collection glass holder is connected to side medium end cap inner side.
Preferably, between described side medium end cap and flange and equipment, be provided with sealing gasket.
Preferably, described spring seat is connected with axle sleeve by Cock screw.
Preferably, described flange, Seal cage, gland, atmospheric side end cap connect by long threaded rod.
Preferably, described flange is connected with side medium end cap by attachment screw.
Preferably, between multiple parts of formation Seal cage, be equipped with seal arrangement.
Preferably, in device, all structural members are all designed with suitable rounding or chamfering.
The beneficial effect that this medicinal industry low speed reactor dry gas sealing device produces is:
1. this device adopts formula daul-side dry round gas seal back-to-back, utilizes the blanket gas of pressure a little more than pressure medium, prevents that processing medium from leaking.
2. novel firmly to hard friction pair by using, the generation of abrasive dust while reducing work greatly, reduces the pollution of impurity to material, improves the quality of products.
3. this dry gas sealing device is set to Compress Spring and rotates with rotating shaft, and is that atmospheric side and side medium share, and is ensureing, on the basis of sealability, greatly to simplify design of part, and processing technology also more easily ensures.
4. in sealing front end setting " dust collection cup ", the abrasive dust that air-flow is taken out of, is deposited in collection cups, further reduces the pollution of impurity to material, improves the quality of products.
Brief description of the drawings
Fig. 1 is the structural representation of this device.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
As shown in Figure 1, this device comprises axle sleeve 16, and axle sleeve 16 is socketed in rotating shaft 1; The outer socket side medium of axle sleeve 16 end cap 2, flange 4, Seal cage 5, side medium dry gas seals pair 6, atmospheric side dry gas seals pair 11, gland 12, atmospheric side end cap 13, bearing 15; Wherein, described side medium dry gas seals pair 6 comprises side medium stationary ring 6.2 and side medium rotating ring 6.1, described atmospheric side dry gas seals pair 11 comprises atmospheric side stationary ring 11.2 and atmospheric side rotating ring 11.1, described side medium stationary ring 6.2, side medium rotating ring 6.1, atmospheric side stationary ring 11.2 and atmospheric side rotating ring 11.1 material therefors are silicon carbide, all be socketed on the inner side of Seal cage 5, two sealing pair the selection of materials are as silicon carbide, form a kind of hard to hard friction pair, generate thereby reduce greatly abrasive dust, prevent that impurity from polluting material; Described flange 4 is socketed in side medium end cap 2 outsides, and Seal cage 5 is connected with side medium end cap 2 and flange 4, and sealing medium entrance 7 is set on Seal cage 5; Gland 12 is connected with Seal cage 5, is provided with sealing medium outlet 10 on gland 12; Between described side medium end cap 2, Seal cage 5, gland 12 and axle sleeve 16, form a Seal cage; Gland 12 is connected with atmospheric side end cap 13, and atmospheric side end cap 13 connects positioning block 14; Described bearing 15 is socketed on gland 12 inner sides.
The preferred a kind of mode of execution of this device is, the outer socket spring seat 9 of axle sleeve 16, spring seat 9 is socketed in Seal cage 5, on spring seat 9, be provided with spring 18, spring 18 two ends connect Support cushion 19, and spring force acts on dry gas seals rotating ring by Support cushion 19, the axial float of effective compensation sealing, ensureing, on the basis of sealability, greatly to simplify design of part, processing technology also more easily ensures.
The preferred a kind of mode of execution of this device is, between described gland 12 and axle sleeve 16, be equipped with oil sealing 17 between described atmospheric side end cap 13 and axle sleeve 16; Oil sealing 17 is positioned at bearing 15 both sides, can effectively prevent that introduced contaminants from entering dry gas seals chamber.
The preferred a kind of mode of execution of this device is, this device is also provided with dust collection cup 20, described dust collection cup 20 is socketed on side medium end cap 2 inner sides, seal arrangement long time running, and there are certain wearing and tearing in friction pair, abrasive dust is taken away by gas leakage, gas leakage outlet arranges dust collection cup 20, and airspeed is reduced, and carrying capacity weakens, dust deposits under Action of Gravity Field, thereby purifies the gas that enters medicinal equipment.
The preferred a kind of mode of execution of this device is, between described side medium end cap 2 and flange 4 and equipment, is provided with sealing gasket 3, prevents that processing medium from leaking from sealing front end, improved the sealability of whole device.
The preferred a kind of mode of execution of this device is, described spring seat 9 is connected with axle sleeve 16 by Cock screw 7, and technique is simple, is easy to realize.
The preferred a kind of mode of execution of this device is, described flange 4, Seal cage 5, gland 12, atmospheric side end cap 13 connect by long threaded rod 21, ensureing, on the basis of sealability, greatly to simplify design of part, and processing technology also more easily ensures.
The preferred a kind of mode of execution of this device is, described flange 4 is connected with side medium end cap 2 by attachment screw 22, and technique is simple, is easy to realize.
The preferred a kind of mode of execution of this device is, forms between multiple parts of Seal cage and is equipped with seal arrangement, can further improve the sealability of whole seal arrangement.
The preferred a kind of mode of execution of this device is that in device, all structural members are all designed with suitable rounding or chamfering, can effectively avoid the dead angle of sterilizing, and ensure the strict demand of medical and health technique.
Above-mentioned mode of execution is used for the utility model of explaining; instead of the utility model is limited; in the protection domain of spirit of the present utility model and claim, any amendment and change that the utility model is made, all fall into protection domain of the present utility model.
Claims (10)
1. a medicinal industry low speed reactor dry gas sealing device, is characterized in that: this device comprises axle sleeve (16), and axle sleeve (16) is socketed in rotating shaft (1); The outer socket of axle sleeve (16) side medium end cap (2), flange (4), Seal cage (5), side medium dry gas seals pair (6), atmospheric side dry gas seals pair (11), gland (12), atmospheric side end cap (13), bearing (15); Wherein, described side medium dry gas seals pair (6) comprises side medium stationary ring (6.2) and side medium rotating ring (6.1), described atmospheric side dry gas seals pair (11) comprises atmospheric side stationary ring (11.2) and atmospheric side rotating ring (11.1), described side medium stationary ring (6.2), side medium rotating ring (6.1), atmospheric side stationary ring (11.2) and atmospheric side rotating ring (11.1) material therefor are silicon carbide, are all socketed on the inner side of Seal cage (5); Described flange (4) is socketed in side medium end cap (2) outside, and Seal cage (5) is connected with side medium end cap (2) and flange (4), and blanket gas entrance (7) is set on Seal cage (5); Gland (12) is connected with Seal cage (5), is provided with exhaust outlet (10) on gland (12); Between described side medium end cap (2), Seal cage (5), gland (12) and axle sleeve (16), form an airtight chamber; Gland (12) is connected with atmospheric side end cap (13), and atmospheric side end cap (13) connects positioning block (14); Described bearing (15) is socketed on gland (12) inner side.
2. medicinal industry low speed reactor dry gas sealing device according to claim 1, it is characterized in that: axle sleeve (16) outer socket spring seat (9), spring seat (9) is socketed in Seal cage (5), on spring seat (9), be provided with spring (18), spring (18) two ends connect Support cushion (19).
3. medicinal industry low speed reactor dry gas sealing device according to claim 1 and 2, is characterized in that: between described gland (12) and axle sleeve (16), be equipped with oil sealing (17) between described atmospheric side end cap (13) and axle sleeve (16); Oil sealing (17) is positioned at bearing (15) both sides.
4. medicinal industry low speed reactor dry gas sealing device according to claim 1 and 2, is characterized in that: this device is also provided with dust collection cup (20), and described dust collection cup (20) is socketed on side medium end cap (2) inner side.
5. medicinal industry low speed reactor dry gas sealing device according to claim 1 and 2, is characterized in that: between described side medium end cap (2) and flange (4) and equipment, be provided with sealing gasket (3).
6. medicinal industry low speed reactor dry gas sealing device according to claim 1 and 2, is characterized in that: spring seat (9) is connected with axle sleeve (16) by Cock screw (7).
7. medicinal industry low speed reactor dry gas sealing device according to claim 1 and 2, is characterized in that: described flange (4), Seal cage (5), gland (12), atmospheric side end cap (13) connect by long threaded rod (21).
8. medicinal industry low speed reactor dry gas sealing device according to claim 1 and 2, is characterized in that: described flange (4) is connected with side medium end cap (2) by attachment screw (22).
9. medicinal industry low speed reactor dry gas sealing device according to claim 1 and 2, is characterized in that: between multiple parts of formation Seal cage, be equipped with seal arrangement.
10. medicinal industry low speed reactor dry gas sealing device according to claim 1 and 2, is characterized in that: in device, all structural members are all designed with suitable rounding or chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420114576.6U CN203796939U (en) | 2014-03-14 | 2014-03-14 | Dry gas seal device for low-speed reaction kettle in medical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420114576.6U CN203796939U (en) | 2014-03-14 | 2014-03-14 | Dry gas seal device for low-speed reaction kettle in medical industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203796939U true CN203796939U (en) | 2014-08-27 |
Family
ID=51379151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420114576.6U Expired - Lifetime CN203796939U (en) | 2014-03-14 | 2014-03-14 | Dry gas seal device for low-speed reaction kettle in medical industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203796939U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757256A (en) * | 2016-04-26 | 2016-07-13 | 成都通密封股份有限公司 | Dry-gas sealing device for can-type three-in-one equipment |
| CN105757252A (en) * | 2016-04-26 | 2016-07-13 | 成都通密封股份有限公司 | Anti-deflection follow-up seal of low-speed device |
| CN105840834A (en) * | 2016-06-08 | 2016-08-10 | 镇江奥立特机械制造有限公司 | Double-end face mechanical seal |
| CN105889515A (en) * | 2016-06-20 | 2016-08-24 | 成都通密封股份有限公司 | Contact type dry operation seal |
| CN106563406A (en) * | 2015-10-10 | 2017-04-19 | 兰州寰球工程有限公司 | Horizontal alkylation reactor with dry gas seal |
| CN109681637A (en) * | 2019-02-18 | 2019-04-26 | 东北大学 | A kind of daul-side dry round gas seal for screw vacuum dry pump |
| CN112984113A (en) * | 2020-12-14 | 2021-06-18 | 浙江工业大学 | Back-to-back double-end-face integrated mechanical sealing device for ocean chemical industry |
-
2014
- 2014-03-14 CN CN201420114576.6U patent/CN203796939U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106563406A (en) * | 2015-10-10 | 2017-04-19 | 兰州寰球工程有限公司 | Horizontal alkylation reactor with dry gas seal |
| CN105757256A (en) * | 2016-04-26 | 2016-07-13 | 成都通密封股份有限公司 | Dry-gas sealing device for can-type three-in-one equipment |
| CN105757252A (en) * | 2016-04-26 | 2016-07-13 | 成都通密封股份有限公司 | Anti-deflection follow-up seal of low-speed device |
| CN105840834A (en) * | 2016-06-08 | 2016-08-10 | 镇江奥立特机械制造有限公司 | Double-end face mechanical seal |
| CN105889515A (en) * | 2016-06-20 | 2016-08-24 | 成都通密封股份有限公司 | Contact type dry operation seal |
| CN109681637A (en) * | 2019-02-18 | 2019-04-26 | 东北大学 | A kind of daul-side dry round gas seal for screw vacuum dry pump |
| CN112984113A (en) * | 2020-12-14 | 2021-06-18 | 浙江工业大学 | Back-to-back double-end-face integrated mechanical sealing device for ocean chemical industry |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610100, No. 26, Xingguang West Road, Chengdu economic and Technological Development Zone, Longquanyi District, Sichuan, Chengdu Patentee after: CHENGDU YITONG SEAL Co.,Ltd. Address before: 610100, No. 26, Xingguang West Road, Chengdu economic and Technological Development Zone, Longquanyi District, Sichuan, Chengdu Patentee before: CHENGDU YITONG SEAL Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |