CN1932342A - Maintenance sealing structure - Google Patents
Maintenance sealing structure Download PDFInfo
- Publication number
- CN1932342A CN1932342A CN 200610010501 CN200610010501A CN1932342A CN 1932342 A CN1932342 A CN 1932342A CN 200610010501 CN200610010501 CN 200610010501 CN 200610010501 A CN200610010501 A CN 200610010501A CN 1932342 A CN1932342 A CN 1932342A
- Authority
- CN
- China
- Prior art keywords
- seal
- bellows
- flange dish
- corrugated pipe
- pivot flange
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 23
- 238000012423 maintenance Methods 0.000 title claims description 16
- 241000239290 Araneae Species 0.000 claims description 8
- 239000002184 metal Substances 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract 3
- 238000007689 inspection Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002153 concerted effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
The present invention provides an inspection seal structure. It includes corrugated pipe, said corrugated pipe includes working corrugated pipe and seal corrugated pipe, two ends of said working corrugated pipe and seal corrugated pipe are respectively connected on the supporting flange and moving flange, on the moving flange a sealing ring is mounted, said supporting flange is mounted on the bearing support abutment, and on the supporting flange a gas transmission channel is set, said gas transmission channel is communicated with seal cavity between the working corrugated pipe and seal corrugated pipe. The invented inspection seal structure utilizes two internally-externally cover-mounted metal corrugated pipes to form seal cavity, only on the supporting flange two symmetrical gas transmission channels are set, the air admission can be implemented.
Description
(1) technical field
What the present invention relates to is a kind of sealing configuration, specifically a kind of maintenance seal arrangement that is applicable to the static sealing of two different chambers.
(2) background technique
At present, bellows is used in the contact-type mechanical seal more, mechanical seal is to go up the suitable impacting force of generation by the pressure of resilient member (bellows or bellows and spring assembly) and sealing medium at the rotating ring of rotation and the contact surface (end face) of stationary ring, two end faces are fitted tightly, play seal action.This kind mechanical seal only is applicable to have counterrotating end face seal, and bellows is not given full play to the function of its sealing just as a kind of resilient member use.
(3) summary of the invention
The object of the present invention is to provide a kind of maintenance sealing structure that can carry out end face seal as required.
The object of the present invention is achieved like this: it comprises bellows, bellows comprises that the two ends of work bellows and seal bellows, work and seal bellows are connected on pivot flange dish and the rotary flange dish, on the rotary flange dish seal ring is installed, the pivot flange dish is installed on the bearing spider, and the gas delivery passage that communicates with Seal cage between the seal bellows with the work bellows is arranged on the pivot flange dish.
The present invention can also comprise some structure characteristics like this:
1, is provided with pivot flange dish sealing gasket between pivot flange dish and the bearing spider.
2, have spring on the rotary flange dish.
3, described gas delivery passage has two, is symmetrically distributed on the pivot flange dish.
The present invention has given full play to the elasticity and the sealability of metal bellows, seals and designs at static relatively end face, can carry out end face seal as required.By the pivot flange dish suffered the making a concerted effort of maintenance sealing structure passed to bearing spider, the work bellows adopts inferior arc-welding to be connected with pivot flange dish, rotary flange dish with seal bellows, and teflon seal ring is contained on the rotary flange.In the Seal cage of working between bellows and the seal bellows, provide clean air by gas delivery passage during the maintenance seal operation, work bellows and seal bellows are stretched, the promotion rotary flange moves down, make the sealing gasket on it bear against shaft shoulder end face part, and produce plastic deformation and fit, played the effect of sealed interior.Lay down the gas in the Seal cage when not working, the rotary flange dish resets under the effect of spring and bellows, and makes bellows be in free state.
The metal bellows that maintenance sealing structure of the present invention is nested inside and outside using two forms Seal cage, can realize air inlet as long as the gas delivery passage of two symmetries is set on the pivot flange dish.Simplify the structure, reduced part number, reduced cost.Maintenance sealing structure of the present invention is connected with bearing spider by the bolt on the pivot flange dish, is convenient to installation and maintenance.
Structure of the present invention have good seal performance, simple in structure, mounting or dismounting ten thousand just, be easy to advantages such as maintenance, low cost of manufacture, long service life.
(4) description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is work bellows part figure.
Fig. 3 is the seal bellows parts drawing.
Fig. 4 is a pivot flange dish parts drawing.
Fig. 5 is a rotary flange dish parts drawing.
Fig. 6 is a pivot flange dish sealing gasket parts drawing.
Fig. 7 is the seal ring parts drawing.
Fig. 8 is spring part figure.
(5) embodiment
For a more detailed description to the present invention for example below in conjunction with accompanying drawing:
In conjunction with Fig. 1, also simultaneously in conjunction with Fig. 2-8, the composition of maintenance sealing structure comprises bellows, bellows comprises that the two ends of work ripple 3 pipes and seal bellows 4, work and seal bellows are connected on pivot flange dish 1 and the rotary flange dish 5 by the method for inferior arc-welding respectively, seal ring 7 is installed on the rotary flange dish, seal ring is made with teflon, the pivot flange dish is installed on the bearing spider by pad 8 and bolt 9, and the gas delivery passage that communicates with Seal cage between the seal bellows with the work bellows is arranged on the pivot flange dish.Be provided with pivot flange dish sealing gasket 2 between pivot flange dish and the bearing spider.Have spring 6 on the rotary flange dish.Described gas delivery passage has two, is symmetrically distributed on the pivot flange dish.
In the Seal cage of working between bellows and the seal bellows, provide clean air by gas delivery passage during work, work bellows and seal bellows are drawn the second month in a season, promoting the rotary flange dish moves down, make the seal ring on it bear against shaft shoulder end face part, and produce plastic deformation and fit, played the effect of sealing, this moment, spring was in confined state.Lay down the gas in the Seal cage when not working, the rotary flange dish resets under the effect of spring and bellows, and just bellows is in free state.
Claims (5)
1, a kind of maintenance sealing structure, it comprises bellows, it is characterized in that: bellows comprises that the two ends of work bellows and seal bellows, work and seal bellows are connected on pivot flange dish and the rotary flange dish, on the rotary flange dish seal ring is installed, the pivot flange dish is installed on the bearing spider, and the gas delivery passage that communicates with Seal cage between the seal bellows with the work bellows is arranged on the pivot flange dish.
2, maintenance sealing structure according to claim 1 is characterized in that: be provided with pivot flange dish sealing gasket between pivot flange dish and the bearing spider.
3, maintenance sealing structure according to claim 1 and 2 is characterized in that: have spring on the rotary flange dish.
4, maintenance sealing structure according to claim 1 and 2 is characterized in that: described gas delivery passage has two, is symmetrically distributed on the pivot flange dish.
5, maintenance sealing structure according to claim 3 is characterized in that: described gas delivery passage has two, is symmetrically distributed on the pivot flange dish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610010501 CN1932342A (en) | 2006-09-06 | 2006-09-06 | Maintenance sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610010501 CN1932342A (en) | 2006-09-06 | 2006-09-06 | Maintenance sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1932342A true CN1932342A (en) | 2007-03-21 |
Family
ID=37878306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610010501 Pending CN1932342A (en) | 2006-09-06 | 2006-09-06 | Maintenance sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1932342A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893130A (en) * | 2010-07-05 | 2010-11-24 | 浙江万龙机械有限公司 | Corrugated pipe sealing component and corrugated pipe valve provided with same |
| CN102713165A (en) * | 2010-03-25 | 2012-10-03 | 三菱重工业株式会社 | Sealing mechanism using accordioned bellows, and steam turbine provided with said sealing mechanism |
| CN103322343A (en) * | 2013-06-27 | 2013-09-25 | 江苏博格东进管道设备有限公司 | Thermal-insulation explosion-proof metal hose |
| CN104061329A (en) * | 2014-06-12 | 2014-09-24 | 上海创异流体机械有限公司 | Double-layer mechanical seal device for agitator |
| CN110985433A (en) * | 2019-12-30 | 2020-04-10 | 蓝箭航天空间科技股份有限公司 | Adjustable dynamic seals and turbo pump sets for turbo pumps |
| CN112815096A (en) * | 2021-02-03 | 2021-05-18 | 沈阳北碳密封有限公司 | Sodium pump maintenance seal and use method thereof |
-
2006
- 2006-09-06 CN CN 200610010501 patent/CN1932342A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102713165A (en) * | 2010-03-25 | 2012-10-03 | 三菱重工业株式会社 | Sealing mechanism using accordioned bellows, and steam turbine provided with said sealing mechanism |
| CN102713165B (en) * | 2010-03-25 | 2015-06-03 | 三菱日立电力系统株式会社 | Sealing mechanism using accordioned bellows, and steam turbine provided with said sealing mechanism |
| EP2511483B1 (en) * | 2010-03-25 | 2019-01-02 | Mitsubishi Hitachi Power Systems, Ltd. | Sealing mechanism using accordioned bellows, and steam turbine provided with said sealing mechanism |
| CN101893130A (en) * | 2010-07-05 | 2010-11-24 | 浙江万龙机械有限公司 | Corrugated pipe sealing component and corrugated pipe valve provided with same |
| WO2012003778A1 (en) * | 2010-07-05 | 2012-01-12 | 浙江万龙机械有限公司 | Corrugated pipe sealing assembly and corrugated pipe valve having the same |
| CN101893130B (en) * | 2010-07-05 | 2012-05-09 | 浙江万龙机械有限公司 | Corrugated pipe sealing component and corrugated pipe valve provided with same |
| RU2594390C2 (en) * | 2010-07-05 | 2016-08-20 | Чжецзян Ваньлун Машинери Ко., Лтд. | Sealing assembly of corrugated pipes and valve with sealing assembly |
| CN103322343A (en) * | 2013-06-27 | 2013-09-25 | 江苏博格东进管道设备有限公司 | Thermal-insulation explosion-proof metal hose |
| CN104061329A (en) * | 2014-06-12 | 2014-09-24 | 上海创异流体机械有限公司 | Double-layer mechanical seal device for agitator |
| CN104061329B (en) * | 2014-06-12 | 2017-11-03 | 上海创异流体机械有限公司 | Double-layer mechanical seal device for agitator |
| CN110985433A (en) * | 2019-12-30 | 2020-04-10 | 蓝箭航天空间科技股份有限公司 | Adjustable dynamic seals and turbo pump sets for turbo pumps |
| CN112815096A (en) * | 2021-02-03 | 2021-05-18 | 沈阳北碳密封有限公司 | Sodium pump maintenance seal and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |