CN201912913U - Stirring shaft sealing structure of stirred tank - Google Patents
Stirring shaft sealing structure of stirred tank Download PDFInfo
- Publication number
- CN201912913U CN201912913U CN 201120019300 CN201120019300U CN201912913U CN 201912913 U CN201912913 U CN 201912913U CN 201120019300 CN201120019300 CN 201120019300 CN 201120019300 U CN201120019300 U CN 201120019300U CN 201912913 U CN201912913 U CN 201912913U
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- China
- Prior art keywords
- sealing
- stirred tank
- stirring shaft
- cavity
- base
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- Expired - Fee Related
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- Accessories For Mixers (AREA)
Abstract
The utility model discloses a stirring shaft sealing structure of a stirred tank, which comprises a base fixed at a lower sealing head of the stirred tank. A sealing box is fixedly connected to the base, a stirring shaft of the stirred tank penetrates through the base and the sealing box, and sealing fillings are filled into the sealing box through a filling pressing cover. The stirring shaft sealing structure is characterized in that an annular step is arranged in the middle of the sealing box, an inner cavity of the sealing box is divided into an inflating cavity and a sealing cavity by the annular step, the sealing fillings are arranged in the sealing cavity positioned on the lower portion of the sealing box, a positioning sleeve fixed on the stirring shaft is arranged in the inflating cavity, an O-shaped sealing ring is arranged between the upper portion of the positioning sleeve and the inner wall of the inflating cavity, and an air inlet communicated with the inflating cavity is arranged on the sealing box. The stirring shaft sealing structure of the stirred tank is capable of preventing powder fillings from entering the sealing cavity so as to avoid abrasion of the shaft surface, has fine sealing effect and long service life, is applicable to the stirred tank having the stirring shaft arranged at the bottom and the top, and particularly, high satisfied sealing effect for dangerous media, such as poisonous media, inflammable and explosive media can be achieved.
Description
Technical field
The utility model relates to a kind of axle sealing structure, particularly a kind of stirred tank shaft hermetically-sealed construction.
Background technology
In industry production such as chemical industry, petrochemical industry, metallurgy, light industry and food, often need handle granularity with vertical stirred tank is that several millimeters are to micron-sized liquid-solid slurries.For slurries can fully be mixed, avoid in stirred tank, precipitating, generally in stirred tank bottom or both sides agitator be housed stir.Yet after work a period of time, powder material gathers the annular seal space of stirred tank bottom shaft, causes original packing seal or mechanical seal to be lost efficacy, and serious " seize " phenomenon will occur, cause axial plane wearing and tearing, maintenance frequently, even cause the motor burning accident.
Summary of the invention
Technical problem to be solved in the utility model is that a kind of good sealing effect will be provided, and can avoid powder material to enter annular seal space and the axial plane that weares and teares, the stirred tank shaft hermetically-sealed construction of long service life.
The utility model is achieved in that it comprises the base that is fixed on stirred tank low head place, below base, be connected with seal case, the shaft of stirred tank runs through base and seal case, in seal case, airtight and watertight padding is housed by gland, its special character is: the middle part is provided with ring ladder in seal case, the seal case inner chamber is divided into inflatable chamber and annular seal space by ring ladder, described airtight and watertight padding is located at the annular seal space that is positioned at the seal case bottom, in inflatable chamber, be provided with the positioning sleeve that is fixed on the shaft, between positioning sleeve top and inflatable chamber inwall, be provided with O-ring seals, on seal case, be provided with the air admission hole that communicates with inflatable chamber.
The utility model has the advantages that: adopt O-ring seals to cooperate with airtight and watertight padding, and be higher than the protective gas of operating pressure in the stirred tank by air admission hole charged pressure in inflatable chamber, can be used for solving liquid-solid, " seize " and gas leak phenomenon that liquid-gas system occurs because of crystallization, sticky and particle gather etc., can effectively avoid powder material to enter annular seal space and the axial plane that weares and teares, simple in structure, good sealing effect, long service life; Less demanding to part processing precision, after the initial break-in, hermetically-sealed construction is stable before driving; Be not only applicable to shaft and be arranged on stirred tank bottom, be applicable to that shaft is arranged on the stirred tank at top yet, especially, can receive satisfied effect yet the sealing of danger medium such as poisonous, inflammable and explosive.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: shaft 1, airtight and watertight padding 2, gland 3, seal case 4, ring ladder 401, inflatable chamber 402, annular seal space 403, positioning sleeve 5, air admission hole 6, base 7, retainer ring 8, low head 9, O-ring seals 10.
The specific embodiment
As shown in the figure, the utility model comprises the base 7 that is fixed on stirred tank low head 9 places, and base 7 is by retainer ring 8 and low head 9 welding.Be connected with seal case 4 at base 7 below by the bolt of circumference uniform distribution, the shaft 1 of stirred tank runs through base 7 and seal case 4, in seal case 4, airtight and watertight padding 2 is housed by gland 3, the middle part is provided with ring ladder 401 in seal case 4, seal case 4 inner chambers are divided into inflatable chamber 402 and annular seal space 403 by ring ladder 401, described inflatable chamber 402 is near base 7, in inflatable chamber 402, be provided with positioning sleeve 5 by being tightly fixed on shaft 1, between positioning sleeve 5 tops and inflatable chamber 402 inwalls, be provided with O-ring seals 10, on seal case 4, be provided with the air admission hole 6 that communicates with inflatable chamber 402.Described airtight and watertight padding 2 is located at the annular seal space 403 that is positioned at seal case 4 bottoms, and gland 3 is by being bolted to the lower end of seal case 4.
During work; in inflatable chamber 402, continue the protective gas that charged pressure is higher than operating pressure in the stirred tank by air admission hole 6; protective gas is selected drying for use; clean inert gas (as nitrogen); the protective gas of minute quantity enters in the stirred tank by the gap between O-ring seals 10 both sides and positioning sleeve 5 and the base 7; the protective gas amount can be regulated arbitrarily according to powder granule size and motion state in the stirred tank; can be used for solving liquid-solid; liquid-gas system is because of crystallization; " seize " and the gas leak phenomenon of appearance such as sticky and particle gathers, the powder material that can effectively avoid gathering the stirred tank bottom enters annular seal space 403 and the axial plane of wearing and tearing shaft 1.
Claims (1)
1. stirred tank shaft hermetically-sealed construction, comprise the base that is fixed on stirred tank low head place, below base, be connected with seal case, the shaft of stirred tank runs through base and seal case, in seal case, airtight and watertight padding is housed by gland, it is characterized in that: the middle part is provided with ring ladder in seal case, the seal case inner chamber is divided into inflatable chamber and annular seal space by ring ladder, described airtight and watertight padding is located at the annular seal space that is positioned at the seal case bottom, in inflatable chamber, be provided with the positioning sleeve that is fixed on the shaft, between positioning sleeve top and inflatable chamber inwall, be provided with O-ring seals, on seal case, be provided with the air admission hole that communicates with inflatable chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120019300 CN201912913U (en) | 2011-01-21 | 2011-01-21 | Stirring shaft sealing structure of stirred tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120019300 CN201912913U (en) | 2011-01-21 | 2011-01-21 | Stirring shaft sealing structure of stirred tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201912913U true CN201912913U (en) | 2011-08-03 |
Family
ID=44412731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120019300 Expired - Fee Related CN201912913U (en) | 2011-01-21 | 2011-01-21 | Stirring shaft sealing structure of stirred tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201912913U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563081A (en) * | 2012-02-29 | 2012-07-11 | 广东明华机械有限公司 | Novel rotary shaft sealing system |
| CN103174833A (en) * | 2013-04-07 | 2013-06-26 | 如皋市权盛机械制造有限公司 | Multiple-ring sealing element |
| CN103706292A (en) * | 2013-12-30 | 2014-04-09 | 浙江迦南科技股份有限公司 | Granulation cutter sealing structure of wet mixing granulator |
| CN103967948A (en) * | 2014-04-24 | 2014-08-06 | 上海东富龙拓溥科技有限公司 | Stirring tank asepsis coupler |
| CN104595484A (en) * | 2015-01-30 | 2015-05-06 | 江阴中南重工股份有限公司 | Thermal insulation sealing device for manhole of stirred tank |
| CN105042081A (en) * | 2015-08-31 | 2015-11-11 | 神华集团有限责任公司 | Sealing device and installation structure for shaft penetrating air flue |
| CN105090521A (en) * | 2011-09-21 | 2015-11-25 | 中国石油化工股份有限公司 | Sealing device for rod piece |
| CN105765276A (en) * | 2013-12-10 | 2016-07-13 | 日本精工株式会社 | Seal mechanism, drive device for seal mechanism, transport device, and manufacturing device |
| CN105987940A (en) * | 2015-02-13 | 2016-10-05 | 亚申科技研发中心（上海）有限公司 | High-pressure electrochemical reaction tank and under pressure system |
| CN107626223A (en) * | 2017-11-07 | 2018-01-26 | 威海龙彩新材料有限公司 | Powdery paints center uniform mixer |
| CN109139427A (en) * | 2018-07-25 | 2019-01-04 | 安徽华尔泰化工股份有限公司 | A kind of stuffing box compressor cylinder base easy to disassemble |
-
2011
- 2011-01-21 CN CN 201120019300 patent/CN201912913U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090521B (en) * | 2011-09-21 | 2017-04-26 | 中国石油化工股份有限公司 | Sealing device for rod piece |
| CN105090521A (en) * | 2011-09-21 | 2015-11-25 | 中国石油化工股份有限公司 | Sealing device for rod piece |
| CN102563081A (en) * | 2012-02-29 | 2012-07-11 | 广东明华机械有限公司 | Novel rotary shaft sealing system |
| CN103174833B (en) * | 2013-04-07 | 2016-01-13 | 如皋市权盛机械制造有限公司 | Many annular seals |
| CN103174833A (en) * | 2013-04-07 | 2013-06-26 | 如皋市权盛机械制造有限公司 | Multiple-ring sealing element |
| US10679875B2 (en) | 2013-12-10 | 2020-06-09 | Nsk Ltd. | Sealing mechanism comprising an annular sealing member and a lubricant groove storing a lubricant, a conveyance device, and a manufacturing device comprising a sealing mechanism |
| CN105765276A (en) * | 2013-12-10 | 2016-07-13 | 日本精工株式会社 | Seal mechanism, drive device for seal mechanism, transport device, and manufacturing device |
| CN103706292B (en) * | 2013-12-30 | 2016-01-27 | 浙江迦南科技股份有限公司 | The granulating cutter hermetically-sealed construction of wet mixing pelletizer |
| CN103706292A (en) * | 2013-12-30 | 2014-04-09 | 浙江迦南科技股份有限公司 | Granulation cutter sealing structure of wet mixing granulator |
| CN103967948A (en) * | 2014-04-24 | 2014-08-06 | 上海东富龙拓溥科技有限公司 | Stirring tank asepsis coupler |
| CN104595484B (en) * | 2015-01-30 | 2016-07-06 | 江阴中南重工股份有限公司 | Stirred tank manhole heat insulation seal device |
| CN104595484A (en) * | 2015-01-30 | 2015-05-06 | 江阴中南重工股份有限公司 | Thermal insulation sealing device for manhole of stirred tank |
| CN105987940A (en) * | 2015-02-13 | 2016-10-05 | 亚申科技研发中心（上海）有限公司 | High-pressure electrochemical reaction tank and under pressure system |
| CN105042081A (en) * | 2015-08-31 | 2015-11-11 | 神华集团有限责任公司 | Sealing device and installation structure for shaft penetrating air flue |
| CN107626223A (en) * | 2017-11-07 | 2018-01-26 | 威海龙彩新材料有限公司 | Powdery paints center uniform mixer |
| CN109139427A (en) * | 2018-07-25 | 2019-01-04 | 安徽华尔泰化工股份有限公司 | A kind of stuffing box compressor cylinder base easy to disassemble |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20120121 |