CN206942918U - A kind of axial-flow turbo-generating unit water pilot bearing and main shaft sealing construction - Google Patents
A kind of axial-flow turbo-generating unit water pilot bearing and main shaft sealing construction Download PDFInfo
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- CN206942918U CN206942918U CN201720514298.7U CN201720514298U CN206942918U CN 206942918 U CN206942918 U CN 206942918U CN 201720514298 U CN201720514298 U CN 201720514298U CN 206942918 U CN206942918 U CN 206942918U
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- seal
- oil
- main shaft
- sealing
- cooling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
Structure design of the present utility model reduces water pilot bearing center, improves the installation site of main shaft seal while the water of traditional structural design, air pipe is cancelled；On the basis of unit operation stability is improved, the maintenance of more main shaft seal is provided convenience；Due to using contactless slit seal, wear problem is not present in sealed body structure；The crush adjustment of packing seal is also very convenient.Unit does not design water pilot bearing cooler, and oil tray is rotated so as to cooling bearing lubricating oil by runner water cooling；Eliminate bearing cooler, cooling water and relevant control and Automation Elements；Unit is not provided with sealing lubrication water, avoids shutdown caused by cooling system failure.
Description
Technical field
The utility model belongs to turbine-generator units plant equipment, is particularly suitable for axial-flow turbo-generating unit water and leads
The structure design of bearing and main shaft seal, and in particular to a kind of axial-flow turbo-generating unit water pilot bearing and main shaft seal knot
Structure.
Background technology
In traditional product design and product structure improvement and design, bearing assembling is assembled with main shaft seal, is each independent
Trim designs.Bearing assembles is equipped with respective independent lubrication aqueous vapor pipeline, relative control apparatus and corresponding with main shaft seal
Automation Elements., largely there is sealing part abrasion problem, causes unit to seal in traditional main shaft sealing construction (see Fig. 1)
Leak.Because unit inner space is small, the position of main shaft seal is again below water pilot bearing so that main shaft seal overhauls very not
Just.Safe operation to power station brings certain puzzlement.Aqueous vapor pipeline pipe fitting, valve, Automation Elements failure simultaneously, to power station
Operation also have a certain impact.
Utility model content
To solve the above problems, design of optimizing product structure, improves part reliability of operation, the utility model structure is set
Meter solves problem present in current structure design in terms of reducing main shaft seal abrasion and solving bearing, sealing water two.
Technical scheme is used by the utility model solves above-mentioned technical problem：A kind of axial-flow turbo-generating unit water
Guide bearing and main shaft sealing construction, it is characterised in that：By closure, radiator structure, bearing body, rotate oil tray, working seal, cold
But water flow passage is formed, and the rotation oil tray is fixed on main shaft, and as the sealing counterpart of main shaft seal, the rotation oil tray
Lubricating oil oil pocket is formed between main shaft, the radiator structure is connected by oil pipe with lubricating oil oil pocket, and the radiator structure is set
Put in closure；The outer wall for rotating oil tray is coordinated by working seal and seal with inner top cover, the working seal
Including packing seal and contactless sealing, the top of the working seal is provided with working seal adjustment bar, and the working seal is adjusted
One end of whole bar is fixedly connected by bolt with inner top cover, and the position of adjustment bar, the other end are sealed by nut adjustment work
Contacted with the tight of working seal, the seal is bolted to connection with Supporting cover, described to rotate the outer of oil tray
The inwall of wall and inner top cover forms cooling water flow conduits, oil tray is rotated using the water cooling in runner, so as to cooling bearing lubricating oil.
Further, the packing seal is compression Ge Ergen disks.
Further, black golden tile is hung with the position seal of the contactless sealing, offers multiple tracks reduced pressure sealing groove.
Further, the oil pipe is connected with bearing body, and lubricating oil enters bearing body from lubricating oil oil pocket, after radiator structure
Rotation oil tray is returned to by oil pipe, further cooling.
The utility model has the advantage of：
Structure design of the present utility model reduces water guide shaft while the water of traditional structural design, air pipe is cancelled
Center is held, improves the installation site of main shaft seal；On the basis of unit operation stability is improved, more main shaft seal
Maintenance provide convenience；Due to using contactless slit seal, wear problem is not present in sealed body structure；Packing seal
Crush adjustment it is also very convenient.
Unit does not design water pilot bearing cooler, and oil tray is rotated so as to cooling bearing lubricating oil by runner water cooling；Cancel
Bearing cooler, cooling water and relevant control and Automation Elements；Unit is not provided with sealing lubrication water, avoids cooling
Shut down caused by the system failure.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the half range profile of water pilot bearing of the prior art.
Fig. 2 is half range profile of the present utility model.
Wherein：101st, bearing confession, drainpipe；102nd, working seal adjustment bar；103rd, inner top cover；104th, working seal supply,
Drainpipe；105th, maintenance sealing supply air line；
201st, closure；202nd, radiator structure；203rd, oil tray is rotated；204th, working seal；205th, cooling water flow conduits；206、
Inner top cover；207th, lubricating oil oil pocket；208th, oil pipe；209th, seal；210th, working seal adjustment bar；
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
A kind of axial-flow turbo-generating unit water pilot bearing and main shaft sealing construction as shown in Figure 2, it is characterised in that：By
Closure 201, radiator structure 202, bearing body, rotation oil tray 203, working seal 204, cooling water flow conduits 205 form, described turn
Dynamic oil tray 203 is fixed on main shaft, and as the sealing counterpart of main shaft seal, shape between the rotation oil tray 203 and main shaft
Into lubricating oil oil pocket 207, the radiator structure 202 is connected by oil pipe 208 with lubricating oil oil pocket 207, the radiator structure 202
It is arranged in closure 201；The outer wall for rotating oil tray 203 passes through working seal 204 and seal 209 and inner top cover 206
Coordinate, the working seal 204 includes packing seal and contactless sealing, and the top of the working seal 204 is close provided with work
Envelope adjustment bar 210, one end of the working seal adjustment bar 210 is fixedly connected by bolt with Supporting cover, and is adjusted by nut
The position of working seal adjustment bar 210 is saved, the other end contacts with the tight of working seal 204, the seal 209 and branch
Support lid is bolted to connection, and the inwall of the outer wall for rotating oil tray 203 and inner top cover 206 forms cooling water flow conduits 205,
Oil tray 203 is rotated using the water cooling in runner, so as to cooling bearing lubricating oil.
Further, the packing seal is compression Ge Ergen disks.
Further, black golden tile is hung with the position seal of the contactless sealing, offers multiple tracks reduced pressure sealing groove.
Further, the oil pipe 208 is connected with bearing body, and lubricating oil enters bearing body from lubricating oil oil pocket 207, and passes through
Returned to after radiator structure 202 and rotate oil tray 203, further cooling.
Water guide bearing structure is close with conventional bearing arrangement, easily fabricated processing, unlike traditional bearing structure,
Sealing counterpart (as shown in the figure) of the oil tray simultaneously as main shaft seal is rotated in bearing.Rotate oil tray peripheral-edge lower be divided into
Sealing structure contactless sealing mating part, top are divided into and packing seal (compression Ge Er packings) mating part.This section uses
Stainless steel material is protected.
The form that main shaft sealing construction is combined using contactless sealing and packing seal.Coal is hung with seal
Watt, the position of contactless clearance seal is provided with multiple tracks ring decompression seal groove.Leak pressure and leak after reduced pressure sealing groove
Amount greatly reduces, and filled can seal and seal completely.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (4)
1. a kind of axial-flow turbo-generating unit water pilot bearing and main shaft sealing construction, it is characterised in that：By closure, radiating knot
Structure, bearing body, oil tray, working seal, cooling water flow conduits composition being rotated, the rotation oil tray is fixed on main shaft, and as master
The sealing counterpart of sealing, lubricating oil oil pocket is formed between the rotation oil tray and main shaft, the radiator structure passes through oil pipe
It is connected with lubricating oil oil pocket, the radiator structure is arranged in closure；The outer wall for rotating oil tray by working seal and
Seal coordinates with inner top cover, and the working seal includes packing seal and contactless sealing, set above the working seal
There is working seal to adjust bar, one end of the working seal adjustment bar is fixedly connected by bolt with inner top cover, and passes through nut
The position of adjustment work sealing adjustment bar, the other end contact with the tight of working seal, and the seal leads to Supporting cover
Cross bolt to be fixedly connected, the inwall of the outer wall for rotating oil tray and inner top cover forms cooling water flow conduits, using the water in runner
Cooling rotates oil tray, so as to cooling bearing lubricating oil.
2. a kind of axial-flow turbo-generating unit water pilot bearing according to claim 1 and main shaft sealing construction, its feature
It is：The packing seal is compression Ge Ergen disks.
3. a kind of axial-flow turbo-generating unit water pilot bearing according to claim 1 and main shaft sealing construction, its feature
It is：Black golden tile is hung with the position seal of the contactless sealing, offers multiple tracks reduced pressure sealing groove.
4. a kind of axial-flow turbo-generating unit water pilot bearing according to claim 1 and main shaft sealing construction, its feature
It is：The oil pipe is connected with bearing body, and lubricating oil enters bearing body from lubricating oil oil pocket, is returned after radiator structure by oil pipe
To oil tray is rotated, further cool down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720514298.7U CN206942918U (en) | 2017-05-09 | 2017-05-09 | A kind of axial-flow turbo-generating unit water pilot bearing and main shaft sealing construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720514298.7U CN206942918U (en) | 2017-05-09 | 2017-05-09 | A kind of axial-flow turbo-generating unit water pilot bearing and main shaft sealing construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206942918U true CN206942918U (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720514298.7U Active CN206942918U (en) | 2017-05-09 | 2017-05-09 | A kind of axial-flow turbo-generating unit water pilot bearing and main shaft sealing construction |
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| CN (1) | CN206942918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443046A (en) * | 2017-05-09 | 2018-08-24 | 天津市天发重型水电设备制造有限公司 | A kind of axial-flow turbo-generating unit water pilot bearing and main shaft sealing construction |
-
2017
- 2017-05-09 CN CN201720514298.7U patent/CN206942918U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443046A (en) * | 2017-05-09 | 2018-08-24 | 天津市天发重型水电设备制造有限公司 | A kind of axial-flow turbo-generating unit water pilot bearing and main shaft sealing construction |
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