CN207393375U - Mixed-flow wheel machine cap water pump plate sealing device - Google Patents
Mixed-flow wheel machine cap water pump plate sealing device Download PDFInfo
- Publication number
- CN207393375U CN207393375U CN201721163564.2U CN201721163564U CN207393375U CN 207393375 U CN207393375 U CN 207393375U CN 201721163564 U CN201721163564 U CN 201721163564U CN 207393375 U CN207393375 U CN 207393375U
- Authority
- CN
- China
- Prior art keywords
- head cover
- pump plate
- main shaft
- seal
- mixed
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
Abstract
The utility model is related to a kind of mixed-flow wheel machine cap water pump plate sealing devices, including the runner crown and head cover being arranged on the outside of main shaft seal, pump plate device is provided between runner crown and head cover, water fetching device is provided on head cover, pump plate draining between runner crown and head cover due to the generation of pump plate device is used by head cover water fetching device for main shaft seal, while can preferably prevent corrosion of the silt to head cover and main shaft seal.Seal pressure water source in unit normal operation need not be provided, while seal the big minor adjustment pressing force also not having to pressure, have effectively achieved the optimization of structure and performance.
Description
Technical field
The utility model belongs to turbine equipment technical field, is related to a kind of mixed-flow wheel machine cap water pump plate sealing
Device.
Background technology
Existing high water head mixed flow vertical turbine, the technical water supply mode that majority is fetched water using head cover as unit.Its
Main shaft seal generally using rubber hydraulic piston end face seal, need to provide seal pressure water, and rotating seal ring is easier to
Abrasion.This structure is cumbersome in repair, and after working seal is using a period of time, is needed when wearing ring damages
It replaces；Another kind is press fitting packing type, and packing abrasion and pressure change need to be adjusted often, while main shaft wear sleeve is easy to wear.
It adjusts and replaces wear sleeve heavy workload, the cycle is long.
Utility model content
In order to overcome the disadvantages mentioned above of the prior art, the utility model provides a kind of mixed-flow wheel machine cap water pump plate
Sealing device need not provide seal pressure water source in unit normal operation, while seal the big ditty also not having to pressure
Pressing force is saved, has effectively achieved the optimization of structure and performance.
Technical solution is used by the utility model solves its technical problem：A kind of mixed-flow wheel machine cap water pump
Plate sealing device including the runner crown and head cover being arranged on the outside of main shaft seal, is provided between runner crown and head cover
Pump plate device is provided with water fetching device on head cover, due to the pump plate draining of pump plate device generation between runner crown and head cover
It is used by head cover water fetching device for main shaft seal, while can preferably prevent corrosion of the silt to head cover and main shaft seal.
Intake pipe is installed on the head cover water fetching device, intake pipe is equipped with the valve for adjusting pressure.
The main shaft seal is externally provided with the seal receptacle for sealing, be equipped on seal receptacle Composite Material Seal Ring so as to
Effectively prevent water from leaking through main shaft seal.
The main shaft seal and intake pipe opposite side are provided with drainpipe.
The beneficial effects of the utility model are：Head cover is sealed with runner using pump plate, can effectively prevent silt to top
The corrosion of lid and main shaft seal.Main shaft seal is not required to the cleaning water source for providing cooling or lubrication in the process of running, seals simultaneously
Also the big minor adjustment pressing force with pressure is not had to.Simple in structure, maintenance is convenient.
Description of the drawings
Fig. 1 is the utility model structure diagram.
In figure：1- runner crowns, 2- pump plates device, 3- head covers, 4- head covers water fetching device, 5- seal receptacles, 6- composite materials
Sealing ring, 7- drainpipes.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
Referring to Fig. 1, a kind of water intaking of mixed-flow wheel machine cap 3 pump plate sealing device, including being arranged on the outside of main shaft seal
Runner crown 1 and head cover 3, pump plate device 2 is provided between runner crown 1 and head cover 3, water intaking is provided on head cover 3
Device, since the pump plate draining that pump plate device 2 generates is close for main shaft by head cover water fetching device 4 between runner crown 1 and head cover 3
Envelope uses, while can preferably prevent corrosion of the silt to head cover 3 and main shaft seal.
Intake pipe is installed on the head cover water fetching device 4, intake pipe is equipped with the valve for adjusting pressure.
The main shaft seal is externally provided with the seal receptacle 5 for sealing, be equipped on seal receptacle 5 Composite Material Seal Ring 6 from
And effectively it can prevent water from leaking through main shaft seal.
The main shaft seal and intake pipe opposite side are provided with drainpipe 7.
Head cover 3 is sealed with runner using pump plate, can effectively prevent corrosion of the silt to head cover 3 and main shaft seal.It is main
Sealing is not required to the cleaning water source for providing cooling or lubrication in the process of running, while seals the big minor adjustment also not having to pressure
Pressing force.Simple in structure, maintenance is convenient.
Claims (4)
1. a kind of mixed-flow wheel machine cap water pump plate sealing device, including the runner crown that is arranged on the outside of main shaft seal and
Head cover, it is characterised in that：Pump plate device is provided between runner crown and head cover, water fetching device is provided on head cover, is turned
It takes turns the pump plate draining between crown and head cover due to the generation of pump plate device to use for main shaft seal by head cover water fetching device, simultaneously
It can preferably prevent corrosion of the silt to head cover and main shaft seal.
2. mixed-flow wheel machine cap water pump plate sealing device as described in claim 1, it is characterised in that：It is taken in the head cover
Intake pipe is installed, intake pipe is equipped with the valve for adjusting pressure in water installations.
3. mixed-flow wheel machine cap water pump plate sealing device as described in claim 1, it is characterised in that：The main shaft seal
The seal receptacle for sealing is externally provided with, Composite Material Seal Ring is installed so as to effectively prevent water from leaking through main shaft on seal receptacle
Sealing.
4. mixed-flow wheel machine cap water pump plate sealing device as described in claim 1, it is characterised in that：It is close in the main shaft
Envelope is provided with drainpipe with intake pipe opposite side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721163564.2U CN207393375U (en) | 2017-09-12 | 2017-09-12 | Mixed-flow wheel machine cap water pump plate sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721163564.2U CN207393375U (en) | 2017-09-12 | 2017-09-12 | Mixed-flow wheel machine cap water pump plate sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393375U true CN207393375U (en) | 2018-05-22 |
Family
ID=62416032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721163564.2U Expired - Fee Related CN207393375U (en) | 2017-09-12 | 2017-09-12 | Mixed-flow wheel machine cap water pump plate sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207393375U (en) |
-
2017
- 2017-09-12 CN CN201721163564.2U patent/CN207393375U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180522 |