CN202349212U - Circular clearance sealing mechanism of high temperature rotating large-diameter equipment - Google Patents
Circular clearance sealing mechanism of high temperature rotating large-diameter equipment Download PDFInfo
- Publication number
- CN202349212U CN202349212U CN2011204725045U CN201120472504U CN202349212U CN 202349212 U CN202349212 U CN 202349212U CN 2011204725045 U CN2011204725045 U CN 2011204725045U CN 201120472504 U CN201120472504 U CN 201120472504U CN 202349212 U CN202349212 U CN 202349212U
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- Prior art keywords
- axial
- axial static
- high temperature
- static sealing
- radial
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- Expired - Fee Related
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- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a circular clearance sealing mechanism of high temperature rotating large-diameter equipment. The circular clearance sealing mechanism is characterized in that an universal ball bearing is fixed on a connecting rod with an axial sliding guidance function and is in rolling contact with an outer barrel end surface flange under the action of a compression spring; an axial static sealing cavity keeps synchronous rotation with an inner cylinder under the action of a frictional force formed by an axial static gland packing which is compressed by a gland; a radial sliding gland packing is fixed on the outer barrel end surface flange; the radial sealing surface of the axial static sealing cavity is always in close contact with the radial sliding gland packing under the action of the compression spring when the radial sliding gland packing relatively rotates, and can eccentrically slide in a certain range in the radial direction; as an axial sliding seal is divided into an axial static seal and a radial sliding seal, the non-concentricity problem of the inner barrel and a high-temperature cavity shell is solved, and a non-high temperature resistance rubber transition body is not adopted, thereby the service life is prolonged, the maintenance cycle is prolonged, and the service efficiency is improved.
Description
Technical field
The utility model relates to a kind of high temperature rotating equipment, relates in particular to the clearance seal structure of this high temperature rotating equipment.
Background technique
High temperature rotating equipment all need be provided with a cavity that holds high temperature media outside inner barrel, cavity is fixing not to rotate with cylindrical shell, so need a kind of seal arrangement to guarantee that high temperature media can not leak between the cavity of high temperature media and the inner barrel.
The structure that addresses the above problem employing in the existing technology adopts stuffing box formula sealing mechanism to carry out axial slipper seal more; But common stuffing box structure does not possess the function of adjustment high temperature media shell cavity and inner barrel decentraction, can not play good sealing effect.Though and floating type stuffing box structure can be adjusted with one heart, its inner rubber transition body can not withstand high temperatures, under the condition of high temperature, can melt, and can't be suitable for macrocyclic running, so also inapplicable at all.
Summary of the invention
The utility model technical issues that need to address have provided a kind of high temperature rotating major diameter equipment annular space sealing mechanism, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is realized through following technological scheme:
The utility model comprises: outer cylinder body and inner barrel; Also comprise: having the connecting rod, univesal sphere bearing, pressure spring, outer cylinder body end face flange of the guiding of endwisely slipping, axially the static sealing chamber, radially slide stuffing box packing and axial static sealing filler; Said univesal sphere bearing fixing keeps rolling to contact with outer cylinder body end face flange under the effect of pressure spring on the connecting rod that the guiding of endwisely slipping is arranged; Said axial static sealing chamber keeps rotation synchronously with inner barrel under the formed function of friction of axial static sealing filler that compresses through gland; Saidly radially slide stuffing box packing and be fixed on the outer cylinder body end face flange; The radial sealing surfaces in said axial static sealing chamber closely contacts when rotating relatively with radially sliding stuffing box packing in maintenance under the effect of pressure spring all the time, and can slide in the off-centre of radially doing in the certain limit.
Compared with prior art; The beneficial effect of the utility model is: because the sealing that will endwisely slip is decomposed into axial static sealing and radially slides sealing; Both efficiently solve the decentraction problem of inner barrel and high temperature cavity shell, do not adopted the rubber transition body of non-refractory again, improved working life; Prolong service cycle, improve utilization efficiency.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
Visible by Fig. 1: the utility model comprises: outer cylinder body 8 and inner barrel 9; Also comprise: having the connecting rod 1, univesal sphere bearing 2, pressure spring 3, outer cylinder body end face flange 4 of the guiding of endwisely slipping, axially static sealing chamber 5, radially slide stuffing box packing 6 and axial static sealing filler 7; Said univesal sphere bearing 2 is fixed on the connecting rod 1 of the guiding that endwisely slips, and under the effect of pressure spring 3, keeps rolling to contact with outer cylinder body end face flange 4; Said axial static sealing chamber 5 keeps rotation synchronously with inner barrel 9 under the axial static sealing filler 7 formed function of friction that compress through gland; Saidly radially slide stuffing box packing 6 and be fixed on the outer cylinder body end face flange 4; The radial sealing surfaces in said axial static sealing chamber 5 closely contacts when rotating relatively with radially sliding stuffing box packing 6 in maintenance under the effect of pressure spring 3 all the time, and can slide in the off-centre of radially doing in the certain limit.
Thereby such structure can be eliminated because of temperature rise or the caused stuffing box packing eccentric wear of the caused inner/outer tube decentraction of device fabrication precision and cause the phenomenon of leaking.
The utility model be with original coaxial with inner barrel be that slipper seal is decomposed into axial static sealing and radially slides sealing; Filler through compressing in the Seal cage guarantees that the axial seal effect lets axial seal mechanism rotate in the lump with cylindrical shell simultaneously; Then through the pretightening force that stage clip provides is set on axial seal face; Guarantee that radial sealing surfaces produces enough pressure and guarantees sealing effect, and do not influence the slip of radial seal, solved the decentraction problem simultaneously.
The utility model by axial sealer, apex combustion seal and connecting rod hold down gag and axially, radially two groups of fillers constitute.Under the working state, the impacting force through the axial seal filler guarantees that axial seal mechanism rotates with inner barrel under the pretightening force effect of connecting rod hold down gag, and the connecting rod hold down gag is that the filler of radial seal place provides impacting force simultaneously, guarantees the sealing that the footpath makes progress.
Claims (1)
1. a high temperature rotating major diameter equipment annular space sealing mechanism comprises: outer cylinder body and inner barrel; It is characterized in that also comprising: having the connecting rod, univesal sphere bearing, pressure spring, outer cylinder body end face flange of the guiding of endwisely slipping, axially the static sealing chamber, radially slide stuffing box packing and axial static sealing filler; Said univesal sphere bearing fixing keeps rolling to contact with outer cylinder body end face flange under the effect of pressure spring on the connecting rod that the guiding of endwisely slipping is arranged; Said axial static sealing chamber keeps rotation synchronously with inner barrel under the formed function of friction of axial static sealing filler that compresses through gland; Saidly radially slide stuffing box packing and be fixed on the outer cylinder body end face flange; The radial sealing surfaces in said axial static sealing chamber closely contacts when rotating relatively with radially sliding stuffing box packing in maintenance under the effect of pressure spring all the time, and can slide in the off-centre of radially doing in the certain limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204725045U CN202349212U (en) | 2011-11-24 | 2011-11-24 | Circular clearance sealing mechanism of high temperature rotating large-diameter equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204725045U CN202349212U (en) | 2011-11-24 | 2011-11-24 | Circular clearance sealing mechanism of high temperature rotating large-diameter equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202349212U true CN202349212U (en) | 2012-07-25 |
Family
ID=46538219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204725045U Expired - Fee Related CN202349212U (en) | 2011-11-24 | 2011-11-24 | Circular clearance sealing mechanism of high temperature rotating large-diameter equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202349212U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764673A (en) * | 2019-03-31 | 2019-05-17 | 河南佰利联新材料有限公司 | A kind of rotary kiln end face seal structure |
| CN110745590A (en) * | 2019-11-22 | 2020-02-04 | 马鞍山奥柯环保科技发展有限公司 | Sealing device for stretching and intermittent vibration of material receiving equipment |
-
2011
- 2011-11-24 CN CN2011204725045U patent/CN202349212U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764673A (en) * | 2019-03-31 | 2019-05-17 | 河南佰利联新材料有限公司 | A kind of rotary kiln end face seal structure |
| CN110745590A (en) * | 2019-11-22 | 2020-02-04 | 马鞍山奥柯环保科技发展有限公司 | Sealing device for stretching and intermittent vibration of material receiving equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20201124 |