CN203584878U - Shaft seal structure of waste gas exhaust centrifugal fan - Google Patents
Shaft seal structure of waste gas exhaust centrifugal fan Download PDFInfo
- Publication number
- CN203584878U CN203584878U CN201320733911.6U CN201320733911U CN203584878U CN 203584878 U CN203584878 U CN 203584878U CN 201320733911 U CN201320733911 U CN 201320733911U CN 203584878 U CN203584878 U CN 203584878U
- Authority
- CN
- China
- Prior art keywords
- ring
- sealing
- graphite carbon
- nitrogen
- main shaft
- 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
- 239000002912 waste gas Substances 0.000 title abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 28
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 17
- 239000010439 graphite Substances 0.000 claims abstract description 17
- 210000004907 gland Anatomy 0.000 claims abstract description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 231100000614 poison Toxicity 0.000 description 3
- 230000007096 poisonous effect Effects 0.000 description 3
- 230000009931 harmful effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a shaft seal structure of a waste gas exhaust centrifugal fan. The structure comprises a labyrinth type sealing ring connected between a main shaft and a sealing body, a graphite carbon ring is further connected between the main shaft and the sealing body, and the outer side of the graphite carbon ring is connected with a gland. An annular nitrogen cavity is also formed between the main shaft and the sealing body, the nitrogen cavity is located between the labyrinth type sealing ring and the graphite carbon ring, and the nitrogen cavity is communicated with a nitrogen inflation opening. By the adoption of the shaft seal structure of the centrifugal fan, the anti-abrasion graphite carbon ring is added on the basis of the traditional labyrinth type sealing ring for sealing, so that the sealing ring does not need to be replaced frequently; besides, by means of the sealing mode that high-pressure nitrogen is pressed into the nitrogen cavity, sealing reliability is guaranteed.
Description
Technical field
The utility model relates to a kind of axle sealing structure of centrifugal blower, particularly relates to a kind of for delivery of axle sealing structure poisonous, that have the centrifugal blower that pollutes waste gas.
Background technique
In the manufacture course of products such as chemical fibre industry, pharmaceutical industry, can there is multiple poisonous and harmful and be with corrosive waste gas, need to adopt the pipeline of sealed type add centrifugal blower these poisonous and harmfuls and be with corrosive waste gas to be transported to processing center and process, for preventing that waste gas from letting out from the main shaft of centrifugal blower and the joint of casing, on the main shaft of centrifugal blower, the interior waste gas of the general anti-stop machines of method that adopt labyrinth seal to add the sealing of " O " type is revealed and is caused secondary pollution to occur more.But between the rubber seal of " O " type sealing and rotating shaft, contact, long-time friction can be worn and torn, and needs replacing seal ring frequently, have and safeguard shortcoming frequently, and the sealability of this form neither be too reliable.
Model utility content
For overcoming above-mentioned defect, the utility model aims to provide one can guarantee that between main shaft and casing, sealability is reliable, and the axle sealing structure of permanent centrifugal blower of reliable sealing time.
For achieving the above object, the technical solution adopted in the utility model is: a kind of axle sealing structure of waste air centrifugal blower, comprise a labyrinth type sealing ring being connected between main shaft and seal, between described main shaft and seal, be also connected with a graphite carbon ring, the outside of described graphite carbon ring is connected with a gland.
Between described main shaft and seal, also have a ring-type nitrogen chamber, described nitrogen chamber is between labyrinth type sealing ring and graphite carbon ring, and described nitrogen chamber is filled nitrogen mouth and is connected with one.
Adopt the axle sealing structure of centrifugal blower of the present utility model, on the basis of traditional labyrinth type sealing ring, increased anti abrasive graphite carbon ring seal, seal ring needn't frequently be changed, and by high pressure nitrogen, be pressed into the sealing means in nitrogen chamber, guaranteed the reliability of sealing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-labyrinth type sealing ring, 2-main shaft, 3-seal, 4-graphite carbon ring, 5-gland, 6-nitrogen chamber, 7-fills nitrogen mouth, 8-casing.
Embodiment
As shown in Figure 1, the utility model discloses a kind of axle sealing structure of waste air centrifugal blower, comprise a labyrinth type sealing ring 1 being connected between main shaft 2 and seal 3, its innovative point is mainly to be also connected with a graphite carbon ring 4 between described main shaft 2 and seal 3, and the outside of described graphite carbon ring 4 is connected with a gland 5.Conventionally labyrinth type sealing ring 1 is arranged on to the side near casing 8, graphite carbon ring 4 is arranged on to the side away from casing 8, due to graphite carbon ring 4, to compare traditional " O " RunddichtringO more wear-resistant, can make blower fan use compared with the long time and needn't change.
Another innovative point of the axle sealing structure of centrifugal blower of the present utility model is between described main shaft 2 and seal 3, also to have a ring-type nitrogen chamber 6, described nitrogen chamber 6 is between labyrinth type sealing ring 1 and graphite carbon ring 4, and described nitrogen chamber 6 is filled nitrogen mouth 7 and is connected with one.The described nitrogen mouth 7 that fills also needs to be connected with elevated pressure nitrogen source of the gas, by filling nitrogen mouth 7, high pressure nitrogen is pressed in the nitrogen chamber 6 of ring-type, make to obtain between main shaft 2 and seal 3 sealing of high pressure nitrogen, there is extraordinary sealing reliability, guarantee that the waste gas in centrifugal blower can not leak out.
Claims (2)
1. the axle sealing structure of a waste air centrifugal blower, comprise a labyrinth type sealing ring (1) being connected between main shaft (2) and seal (3), it is characterized in that being also connected with a graphite carbon ring (4) between described main shaft (2) and seal (3), the outside of described graphite carbon ring (4) is connected with a gland (5).
2. the axle sealing structure of centrifugal blower according to claim 1, it is characterized in that also thering is a ring-type nitrogen chamber (6) between described main shaft (2) and seal (3), described nitrogen chamber (6) is positioned between labyrinth type sealing ring (1) and graphite carbon ring (4), and described nitrogen chamber (6) is filled nitrogen mouth (7) and is connected with one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320733911.6U CN203584878U (en) | 2013-11-20 | 2013-11-20 | Shaft seal structure of waste gas exhaust centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320733911.6U CN203584878U (en) | 2013-11-20 | 2013-11-20 | Shaft seal structure of waste gas exhaust centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584878U true CN203584878U (en) | 2014-05-07 |
Family
ID=50582809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320733911.6U Expired - Lifetime CN203584878U (en) | 2013-11-20 | 2013-11-20 | Shaft seal structure of waste gas exhaust centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584878U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019238A (en) * | 2014-06-20 | 2014-09-03 | 济南风机厂有限责任公司 | Comb tooth shaped elasticity self-adaptive sealing structure |
| CN104100564A (en) * | 2014-07-14 | 2014-10-15 | 宁波浙成科技咨询有限公司 | Fan sealing member |
| CN104343473A (en) * | 2014-09-02 | 2015-02-11 | 华中科技大学 | Shaft end seal device for organic working medium radial-inward-flow turbine |
| CN105201898A (en) * | 2015-10-24 | 2015-12-30 | 车晋绥 | Rubber pump novel water seal ring |
| CN105271145A (en) * | 2015-10-23 | 2016-01-27 | 上虞佳英化工有限公司 | Equipment for preparing dilute nitric acid through nitrogen oxide water body absorption |
| CN106704558A (en) * | 2016-12-12 | 2017-05-24 | 重庆江增船舶重工有限公司 | Gearbox structure for centrifugal machine |
| CN110469512A (en) * | 2018-05-09 | 2019-11-19 | 日益电机股份有限公司 | It can prevent the vertical pump of corrosive gas |
-
2013
- 2013-11-20 CN CN201320733911.6U patent/CN203584878U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019238A (en) * | 2014-06-20 | 2014-09-03 | 济南风机厂有限责任公司 | Comb tooth shaped elasticity self-adaptive sealing structure |
| CN104100564A (en) * | 2014-07-14 | 2014-10-15 | 宁波浙成科技咨询有限公司 | Fan sealing member |
| CN104343473A (en) * | 2014-09-02 | 2015-02-11 | 华中科技大学 | Shaft end seal device for organic working medium radial-inward-flow turbine |
| CN104343473B (en) * | 2014-09-02 | 2015-09-09 | 华中科技大学 | A kind of shaft end seal device for organic working medium radial-inward-flow turbine |
| CN105271145A (en) * | 2015-10-23 | 2016-01-27 | 上虞佳英化工有限公司 | Equipment for preparing dilute nitric acid through nitrogen oxide water body absorption |
| CN105201898A (en) * | 2015-10-24 | 2015-12-30 | 车晋绥 | Rubber pump novel water seal ring |
| CN106704558A (en) * | 2016-12-12 | 2017-05-24 | 重庆江增船舶重工有限公司 | Gearbox structure for centrifugal machine |
| CN110469512A (en) * | 2018-05-09 | 2019-11-19 | 日益电机股份有限公司 | It can prevent the vertical pump of corrosive gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |