CN203301288U - Sealing device for hydrogen-cooled generator - Google Patents
Sealing device for hydrogen-cooled generator Download PDFInfo
- Publication number
- CN203301288U CN203301288U CN2013203624455U CN201320362445U CN203301288U CN 203301288 U CN203301288 U CN 203301288U CN 2013203624455 U CN2013203624455 U CN 2013203624455U CN 201320362445 U CN201320362445 U CN 201320362445U CN 203301288 U CN203301288 U CN 203301288U
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- sealing
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- sealing plate
- fluid sealant
- hydrogen
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Abstract
The utility model discloses a sealing device for a hydrogen-cooled generator. The sealing device for the hydrogen-cooled generator comprises a motor casing and a sealing plate used for sealing various ports to be sealed on the motor casing, wherein a contact face of the sealing plate and the motor casing which is at one side of the motor casing is provided with a sealing groove used for pouring sealing glue, a position on the sealing plate corresponding to the sealing groove is provided with glue injection screw holes, the glue injection screw holes are equipped with adjusting bolts for adjusting the sealing glue, the sealing plate is fixed with the motor casing through fixing screws, and positions of the fixing screws are at outer sides of the sealing groove. According to the sealing device, through arranging the sealing groove at a point to be sealed, a sealing effect of the sealing plate is improved, so a problem that a sealing face is easily damaged by various external forces because of relative thinness of a sealing coating layer existing in the prior art is solved, the glue injection screw hole is convenient for filling the sealing glue into the sealing groove, and the sealing effect is easy to check.
Description
Technical field
The utility model relates to thermal power plant's turbo generator set, is specifically related to a kind of sealing device when hydrogen gas leakage is appearred in hydrogen-cooled turbo generator set.
Background technology
Temperature when existing generator is reduction work, usually adopt water-cooled, mode hydrogen-cooled or both combinations to carry out generator cooling, with the normal operation of protection generator.This type of generator generally comprises the parts such as stator, rotor, end cap and bearing, hydrogen cooler, sealing bearing bush device, seat board, brush holder, blimp and forms, the type of cooling is that stator winding internal water cooling, rotor winding hydrogen inner cooling, iron core and other member are hydrogen-cooled, hydrogen is by the slurry formula fan forced circulation that is contained in two ends of rotor, and undertaken coolingly by the hydrogen cooler that is arranged on generator two ends, out frame top, hydrogen system forms totally-enclosed airtight construction by generator unit stator shell, end cap, hydrogen cooler, sealing bearing bush and hydrogen pipeline.Because the transportation pipeline of hydrogen is complicated, and the whole surface of engine is rough and uneven in surface, usually adopt the mode of inner coating fluid sealant to carry out the sealing of interface or junction in sealing place, because the phenomenons such as fluid sealant can harden after the factor impact such as be subject to temperature, shake, pull, disconnection cause sealing place leakage to occur.
The utility model content
Be prone to the problem of leakage for solving hydrogen cooled generator that the available technology adopting fluid sealant seals, the utility model provides a kind of sealing device of quick provisional sealing.Concrete scheme is as follows: a kind of sealing device of hydrogen cooled generator, comprise electric machine casing and be used for the sealed electric-motor housing sealing plate of to be sealed mouthful everywhere, described sealing plate with on the contact-making surface of electric machine casing and a side setting that is positioned at electric machine casing pour the seal groove of fluid sealant, the position corresponding with seal groove is provided with the injecting glue screw on sealing plate, and the adjusting bolt of regulating fluid sealant is installed on the injecting glue screw, described sealing plate is fixed by hold-down screw and electric machine casing and the position of hold-down screw is positioned at the outside of seal groove.
For convenience of the pouring of fluid sealant: the quantity of described injecting glue screw is with the length of seal groove and to control the capabilities setting of fluid sealant a plurality of.
For sealing erose leakage point: comprise a corresponding seal box of size to be sealed according to electric machine casing, the opening edge of described seal box is corresponding with the shape at point to be sealed place, and described seal box is fixed on point to be sealed by fluid sealant.
The utility model is by arranging the form of seal groove at engine point to be sealed, improve sealing plate sealing effectiveness, avoid in prior art the fluid sealant coating thinner and easily by various outside destroy sealing surface problems, can conveniently to fluid sealant, fill in seal groove by the injecting glue screw, and be easy to check sealing effectiveness., by the seal box that independently arranges, can carry out to the leakage at some irregular places the sealing of short time, and not affect the normal operation of generator.
Description of drawings
Fig. 1 structural representation of the present utility model;
Fig. 2 structure of seal box schematic diagram of the present utility model;
Attached number in the figure explanation: 1-mouth to be sealed, 2-seal groove, 3-sealing plate, 4-injecting glue screw, 5-hold-down screw, 6-seal box, 7-electric machine casing.
Embodiment
as shown in Figure 1, the sealing device of hydrogen cooled generator of the present utility model, comprise electric machine casing 7 and be used for sealed electric-motor housing 7 sealing plate 3 of to be sealed mouthful 1 everywhere, on the contact-making surface of described sealing plate 3 and electric machine casing 7 and a side setting that is positioned at electric machine casing 7 pour the seal groove 2 of fluid sealant, position corresponding with seal groove 2 on sealing plate 3 is provided with injecting glue screw 4, and the adjusting bolt of regulating fluid sealant is installed on injecting glue screw 4, described sealing plate 3 is positioned at the outside of seal groove 2 by hold-down screw 5 and electric machine casing 7 position fixing and hold-down screw 5.
When mounted, need to mill out seal groove 2 together corresponding or a circle around electric machine casing 7 mouth 1 to be sealed, need simultaneously to guarantee the smooth and laminating degree of sealing plate 3 and electric machine casing 7 contact-making surfaces, sealing plate 3 is fixed on the mouth 1 to be sealed of electric machine casing 7 by hold-down screw 5, then pour fluid sealant by injecting glue screw 4 in seal groove 2, when fluid sealant pours when motionless, again adjusting bolt is screwed in injecting glue screw 4 and seals, adjusting bolt can push back the fluid sealant of by the injecting glue screw, being emerged in seal groove, makes the interior fluid sealant of seal groove 2 more closely knit.Pour fluid sealant and also can when sealing plate 3 is not fixed on to be sealed mouthful 1, first to seal groove 2, carry out the perfusion of fluid sealant, the pressure while with the minimizing later stage, by injecting glue screw 4, being poured.Can adopt aforesaid way to seal for the sealing at diverse location place on electric machine casing 7.For further improving the perfusion effect of fluid sealant, the quantity of injecting glue screw 4 described in the utility model is with the length of seal groove 2 and to control the capabilities setting of fluid sealant a plurality of.This scheme adopts the mode of perfusion piecemeal to seal, namely on sealing plate 3 position corresponding with seal groove 2, a plurality of injecting glue screws 4 are set, during sealing, at first by an injecting glue screw 4 to the interior injecting glue of seal groove 2, when emerging fluid sealant in adjacent injecting glue screw 4, show that the seal groove 2 between these two injecting glue screws 4 has filled up, therefore current injecting glue screw 4 use adjusting bolts are sealed, and then carry out the perfusion of fluid sealant in the injecting glue screw 4 by the fluid sealant of emerging, carry out successively, until that whole seal groove 2 all pours is complete.This scheme makes the filling of fluid sealant more substantial, has avoided the existence of bubble, space one class.The quantity of concrete injecting glue screw 4 is all relevant with width, the degree of depth, the length of seal groove 2, to facilitate pouring of fluid sealant, is as the criterion.
Irregular or be difficult to adopt fixing place, plane for some, the utility model also comprises point 1 size to be sealed according to electric machine casing 7 seal box 6 corresponding with structure, the opening edge of described seal box 6 is corresponding with the shape at point to be sealed 1 place, and described seal box 6 is fixed on point 1 to be sealed by fluid sealant.The global shape of seal box 6, size and opening shape etc. are according to the actual structure fabrication that will seal, the shape at the opening edge shape of seal box 6 and point to be sealed 1 place adapts and can better realize both laminatings, utilize simultaneously fluid sealant to be fixed, the convenient installation, and can be for convenience detach in the time of needs.As: when leakage point was the junction of tube and tube, the tray cover that seal box 6 can be arranged to an arcuate shape is in leak, and was as larger in leakage point, can adopt the round box body that is comprised of two or more segmental arcs to seal., if while leaking the junction occur in electric machine casing or edge, adopt equally the seal box of shape around this leakage point of can fitting with whole sealing herein.Concrete seal box can adopt plastics one class organic material to make, and can make according to specific circumstances like this, also is easy to processing simultaneously.This programme can not destroy former mounting structure, do not adopt any electric power tool, can not cause combustion of hydrogen and blast, and can not affect the normal operation of equipment, play the effect of temporary sealing, concrete leakage point is processed and can be gone and process again when overhaul, even and adopt aforesaid way to occur that again leakage also is easy to change.
the above is only preferred embodiment of the present utility model, not the utility model is done any pro forma restriction, although the utility model with preferred embodiment openly as above, yet not in order to limit the utility model, anyly be familiar with the technical staff of this patent within not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned prompting is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of the utility model scheme.
Claims (3)
1. the sealing device of a hydrogen cooled generator, comprise electric machine casing (7) and be used for sealed electric-motor housing (7) sealing plate (3) of to be sealed mouthful (1) everywhere, on the contact-making surface of described sealing plate (3) and electric machine casing (7) and a side setting that is positioned at electric machine casing (7) pour the seal groove (2) of fluid sealant, be provided with injecting glue screw (4) in the upper position corresponding with seal groove (2) of sealing plate (3), and the adjusting bolt of regulating fluid sealant is installed on injecting glue screw (4), described sealing plate (3) position fixing with electric machine casing (7) by hold-down screw (5) and hold-down screw (5) is positioned at the outside of seal groove (2).
2. a kind of sealing device of hydrogen cooled generator as claimed in claim 1, is characterized in that, the quantity of described injecting glue screw (4) is with the length of seal groove (2) and to control the capabilities setting of fluid sealant a plurality of.
3. a kind of sealing device of hydrogen cooled generator as claimed in claim 2, it is characterized in that, comprise the corresponding seal box (6) of a point to be sealed according to electric machine casing (7) (1) size, the opening edge of described seal box (6) is corresponding with the shape that point to be sealed (1) is located, and described seal box (6) is fixed on point to be sealed (1) by fluid sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203624455U CN203301288U (en) | 2013-06-24 | 2013-06-24 | Sealing device for hydrogen-cooled generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203624455U CN203301288U (en) | 2013-06-24 | 2013-06-24 | Sealing device for hydrogen-cooled generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203301288U true CN203301288U (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203624455U Expired - Fee Related CN203301288U (en) | 2013-06-24 | 2013-06-24 | Sealing device for hydrogen-cooled generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203301288U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787374A (en) * | 2016-12-14 | 2017-05-31 | 东方电气集团东方电机有限公司 | A kind of steam turbine generator complete trails sealing structure and assembly method |
| CN106767114A (en) * | 2016-12-14 | 2017-05-31 | 东方电气集团东方电机有限公司 | A kind of hydrogen seal structure for being applied to steam turbine generator |
| CN108400681A (en) * | 2018-04-13 | 2018-08-14 | 哈尔滨电气动力装备有限公司 | Vertical machine air/water cooler condensation water collection system |
| GB2571486A (en) * | 2016-12-14 | 2019-08-28 | Dongfang Electric Machinery Co Ltd | Full-path sealing structure of steam turbine generator and assembly method |
-
2013
- 2013-06-24 CN CN2013203624455U patent/CN203301288U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787374A (en) * | 2016-12-14 | 2017-05-31 | 东方电气集团东方电机有限公司 | A kind of steam turbine generator complete trails sealing structure and assembly method |
| CN106767114A (en) * | 2016-12-14 | 2017-05-31 | 东方电气集团东方电机有限公司 | A kind of hydrogen seal structure for being applied to steam turbine generator |
| WO2018107986A1 (en) * | 2016-12-14 | 2018-06-21 | 东方电气集团东方电机有限公司 | Hydrogen sealing structure applied in steam turbine generator |
| WO2018107981A1 (en) * | 2016-12-14 | 2018-06-21 | 东方电气集团东方电机有限公司 | Full-path sealing structure of steam turbine generator and assembly method |
| GB2571486A (en) * | 2016-12-14 | 2019-08-28 | Dongfang Electric Machinery Co Ltd | Full-path sealing structure of steam turbine generator and assembly method |
| GB2571486B (en) * | 2016-12-14 | 2022-03-23 | Dongfang Electric Machinery Co Ltd | Full-path sealing structure of steam turbine generator and assembly method |
| CN108400681A (en) * | 2018-04-13 | 2018-08-14 | 哈尔滨电气动力装备有限公司 | Vertical machine air/water cooler condensation water collection system |
| CN108400681B (en) * | 2018-04-13 | 2023-12-26 | 哈尔滨电气动力装备有限公司 | Condensate water collecting system of air-water cooler of vertical motor |
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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 |
Granted publication date: 20131120 Termination date: 20150624 |
|
| EXPY | Termination of patent right or utility model |