CN204532669U - A kind of new type water power station unit macro-axis center blowdown pipe device - Google Patents
A kind of new type water power station unit macro-axis center blowdown pipe device Download PDFInfo
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- CN204532669U CN204532669U CN201520147329.0U CN201520147329U CN204532669U CN 204532669 U CN204532669 U CN 204532669U CN 201520147329 U CN201520147329 U CN 201520147329U CN 204532669 U CN204532669 U CN 204532669U
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- blowdown pipe
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- power station
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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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- Hydraulic Turbines (AREA)
Abstract
A kind of new type water power station unit macro-axis center blowdown pipe device, it comprises macro-axis, macro-axis is connected with runner, blowdown pipe connects base by Flange joint on the bottom end face of macro-axis, and blowdown pipe adopts top-down mounting type, connects the center hole of base through blowdown pipe, and be fixedly connected on blowdown pipe connection base by flange, blowdown pipe taper support adopts mounting type from bottom to top, and small end is connected to the end of blowdown pipe, holds greatly by Flange joint on draft cone.It is enclosed construction that blowdown pipe is connected base designs by this device, blowdown pipe connects between base and blowdown pipe connecting flange should adopt " 0 " RunddichtringO sealing, blowdown pipe connection base cover plate is designed with enter hole, pass in and out to facilitate personnel, and enter hole is designed with sealed cover, and good sealing effect should be had, can effectively prevent river from pouring in down a chimney, avoid set generator generation substantial equipment accident, improve whole unit operation safety reliability.
Description
Technical field
The utility model relates to a kind of blowdown pipe device, is specially a kind of new type water power station unit macro-axis center blowdown pipe device.
Background technique
High head domestic at present, Large Copacity Francis hydroturbine generator set adopt macro-axis center tonifying Qi mode mostly, are installed on macro-axis center after blowdown pipe piecewise combination.In use there is the defect of the following aspects in the structure of tradition blowdown pipe: after (1) equipment long-play, seal ring is easily aging, river is just caused directly to enter into macro-axis and runner inside, if water leakage will threaten greatly the safe operation of whole generator set; (2) if need to change seal ring, also need to carry out shutdown draining to unit, and just can change set up framed bent below unit draft cone after, owing to being subject to the impact of blowdown pipe mounting type and own wt, change sealing difficulty larger, long in time limit, and there is certain security risk; (3) flange bolt of fixing blowdown pipe directly contacts with river, during unit operation, under interaction due to factors such as vibration, the fluctuation pressure of water, cavitation corrosion, abrasion and blowdown pipe own wts, likely cause seal failure between connecting flange face, cause coming off of blowdown pipe, thus cause equipment failure.
Therefore, based on above-mentioned analysis and technical characteristics, need the new Hydropower Plant macro-axis center blowdown pipe device of design thus effectively address the aforementioned drawbacks, improve installation quality and the installation efficiency of blowdown pipe, improve its mounting structure, raising equipment operational reliability, thus the security of operation improving set generator.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of new type water power station unit macro-axis center blowdown pipe device, it is enclosed construction that blowdown pipe is connected base designs by this device, blowdown pipe connects between base and blowdown pipe connecting flange should adopt " 0 " RunddichtringO sealing, blowdown pipe connection base cover plate is designed with enter hole, pass in and out to facilitate personnel, and enter hole is designed with sealed cover, and good sealing effect should be had, can effectively prevent river from pouring in down a chimney, avoid set generator generation substantial equipment accident, improve whole unit operation safety reliability.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of new type water power station unit macro-axis center blowdown pipe device, it comprises macro-axis, macro-axis is connected with runner, blowdown pipe connect base by Flange joint on the bottom end face of macro-axis, blowdown pipe adopts top-down mounting type, the center hole of base is connected through blowdown pipe, and be fixedly connected on blowdown pipe connection base by flange, blowdown pipe taper support adopts mounting type from bottom to top, small end is connected to the end of blowdown pipe, large end by Flange joint on draft cone.
Described blowdown pipe connection base is processed with access aperture.
The adpting flange junction plane that described blowdown pipe connects base and macro-axis is provided with seal ring.
The adpting flange junction plane that described blowdown pipe connects base and blowdown pipe is provided with seal ring.
Small end and the blowdown pipe of described blowdown pipe taper support adopt Spielpassung, and junction surface is provided with twice and above seal ring.
The large end of described blowdown pipe taper support and the adpting flange junction plane of draft cone are provided with seal ring.
The top of described access aperture is provided with cover plate, and cover plate is connected between base with blowdown pipe and is tightly connected.
The utility model can obtain following beneficial effect:
A kind of new type water power station unit macro-axis center blowdown pipe device that the utility model provides, take above-mentioned structure, can be designed by effective hermetic seal, prevent river from pouring in down a chimney into macro-axis inside, avoid set generator generation substantial equipment accident, improve whole unit operation safety reliability, the access aperture simultaneously connected on base by blowdown pipe can facilitate staff to enter, and is convenient to the maintenance of equipment.
Above-mentioned blowdown pipe connection base is processed with access aperture, conveniently can be entered by access aperture staff, thus make overhaul of the equipments convenient, reduce the workload of overhaul of the equipments.
Above-mentioned blowdown pipe connects base and the adpting flange junction plane of macro-axis is provided with seal ring, thus effectively avoids river and enter into macro-axis inside from connecting gap.
Above-mentioned blowdown pipe connects base and the adpting flange junction plane of blowdown pipe is provided with seal ring, thus avoids river and enter from connecting gap, also ensure that flange bolt is not subject to the erosion of river.
Small end and the blowdown pipe of above-mentioned blowdown pipe taper support adopt Spielpassung, and junction surface is provided with twice and above seal ring, thus avoid river and enter in runner crown.
The large end of above-mentioned blowdown pipe taper support and the adpting flange junction plane of draft cone are provided with seal ring, thus prevent river to infiltrate.
The top of above-mentioned access aperture is provided with cover plate, and cover plate is connected between base with blowdown pipe and is tightly connected, and can occasionally effectively avoid river to penetrate into macro-axis inside by sealing.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is the utility model whole-cutaway view.
In figure: macro-axis 1, runner 2, blowdown pipe connect base 3, blowdown pipe 4, access aperture 5, blowdown pipe taper support 6, draft cone 7, seal ring 8.
Embodiment
As Fig. 1, concrete connection and installation in figure are, a kind of new type water power station unit macro-axis center blowdown pipe device, it comprises macro-axis 1, macro-axis 1 is connected with runner 2, it is characterized in that: blowdown pipe connect base 3 by Flange joint on the bottom end face of macro-axis 1, blowdown pipe 4 adopts top-down mounting type, the center hole of base 3 is connected through blowdown pipe, and be fixedly connected on blowdown pipe connection base 3 by flange, blowdown pipe taper support 6 adopts mounting type from bottom to top, small end is connected to the end of blowdown pipe 4, large end by Flange joint on draft cone 7.
Preferably, as Fig. 1, described blowdown pipe connection base 3 is processed with access aperture 5.
Preferably, described blowdown pipe connection base 3 is provided with seal ring with the adpting flange junction plane of macro-axis 1.
Preferably, described blowdown pipe connection base 3 is provided with seal ring with the adpting flange junction plane of blowdown pipe 4.
Preferably, as Fig. 1, small end and the blowdown pipe 4 of described blowdown pipe taper support 6 adopt Spielpassung, and junction surface is provided with twice and above seal ring 8.
Preferably, the large end of described blowdown pipe taper support 6 and the adpting flange junction plane of draft cone 7 are provided with seal ring.
Preferably, the top of described access aperture 5 is provided with cover plate, and cover plate is connected with blowdown pipe between base 3 and is tightly connected.
Implementation step of the present utility model and working principle:
(1) first blowdown pipe is connected base 3, lift in runner 2, then blowdown pipe is connected base 3 and be installed on the lower flange face of macro-axis 1, " O " RunddichtringO should be installed in conjunction face, prevent river from infiltrating in macro-axis.
(2) blowdown pipe 4 is adopted top-down mounting type, directly connect base 3 through blowdown pipe, installing blowdown pipe 4 to be connected between base 3 after flange seal with blowdown pipe, adjustment blowdown pipe 4 mounting center, fix blowdown pipe 4, utilize bolt that conjunction blowdown pipe 4 is connected base 3 mounting flange with blowdown pipe;
(3) be designed to Spielpassung form by between blowdown pipe taper support 6 and end blowdown pipe 4, as shown in Figure 1, between matching gap, design twice " O " RunddichtringO 8, prevent river from entering in runner crown.
(4) blowdown pipe taper support 6 is adopted mounting type from bottom to top, be installed on the end of blowdown pipe 4, after the adjustment evenly of gap, utilize bolt to be fixed on draft cone 7 by blowdown pipe taper support 6, " O " RunddichtringO sealing should be adopted between fastening flange face, prevent river from infiltrating.
Advantage of the present utility model:
1, during unit operation, even if there is the phenomenon that blowdown pipe taper support 6 or draft cone 7 come off, between base 3, blowdown pipe 4, macro-axis 1 and runner 2, still there is good sealability because blowdown pipe connects, still can prevent river from entering in macro-axis, prevent equipment from occurring major accident.
2, during the equipment repair and maintenance of macro-axis center blowdown pipe, only need open the enter hole 5 on blowdown pipe support cover plate, the working condition that blowdown pipe connects the following equipment of base 3 cover plate and " O " RunddichtringO 8 between blowdown pipe 4 and blowdown pipe taper support 6 can be checked, reduce workload, improve the reliability of equipment work.
3, new design blowdown pipe taper support 6 weight decreases 2/3rds, and the axial tension that combinating face bolt bears is less, improves the reliability of equipment work.Even if there is the problem of " O " RunddichtringO 8 operational failure between taper support 6 and blowdown pipe 4, due to the reduction of blowdown pipe taper support weight, reduce the security risk of more exchange device, saved the equipment replacement time, improve the availability of equipment.
Claims (7)
1. a new type water power station unit macro-axis center blowdown pipe device, it comprises macro-axis (1), macro-axis (1) is connected with runner (2), it is characterized in that: blowdown pipe connect base (3) by Flange joint on the bottom end face of macro-axis (1), blowdown pipe (4) adopts top-down mounting type, the center hole of base (3) is connected through blowdown pipe, and be fixedly connected on blowdown pipe connection base (3) by flange, blowdown pipe taper support (6) adopts mounting type from bottom to top, small end is connected to the end of blowdown pipe (4), large end by Flange joint on draft cone (7).
2. a kind of new type water power station unit macro-axis center according to claim 1 blowdown pipe device, is characterized in that: described blowdown pipe connection base (3) is processed with access aperture (5).
3. a kind of new type water power station unit macro-axis center according to claim 1 blowdown pipe device, is characterized in that: described blowdown pipe connects base (3) and the adpting flange junction plane of macro-axis (1) is provided with seal ring.
4. a kind of new type water power station unit macro-axis center according to claim 1 blowdown pipe device, is characterized in that: described blowdown pipe connects base (3) and the adpting flange junction plane of blowdown pipe (4) is provided with seal ring.
5. a kind of new type water power station unit macro-axis center according to claim 1 blowdown pipe device, it is characterized in that: small end and the blowdown pipe (4) of described blowdown pipe taper support (6) adopt Spielpassung, and junction surface is provided with twice and above seal ring (8).
6. a kind of new type water power station unit macro-axis center according to claim 1 blowdown pipe device, is characterized in that: the large end of described blowdown pipe taper support (6) and the adpting flange junction plane of draft cone (7) are provided with seal ring.
7. a kind of new type water power station unit macro-axis center according to claim 2 blowdown pipe device, is characterized in that: the top of described access aperture (5) is provided with cover plate, and cover plate is connected with blowdown pipe between base (3) and is tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520147329.0U CN204532669U (en) | 2015-03-16 | 2015-03-16 | A kind of new type water power station unit macro-axis center blowdown pipe device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520147329.0U CN204532669U (en) | 2015-03-16 | 2015-03-16 | A kind of new type water power station unit macro-axis center blowdown pipe device |
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| Publication Number | Publication Date |
|---|---|
| CN204532669U true CN204532669U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520147329.0U Expired - Fee Related CN204532669U (en) | 2015-03-16 | 2015-03-16 | A kind of new type water power station unit macro-axis center blowdown pipe device |
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| CN (1) | CN204532669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671254A (en) * | 2019-11-15 | 2020-01-10 | 云南电网有限责任公司电力科学研究院 | System for weakening pressure pulsation of draft tube of hydroelectric generating set |
-
2015
- 2015-03-16 CN CN201520147329.0U patent/CN204532669U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671254A (en) * | 2019-11-15 | 2020-01-10 | 云南电网有限责任公司电力科学研究院 | System for weakening pressure pulsation of draft tube of hydroelectric generating set |
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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: 20150805 Termination date: 20190316 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |