CN204127316U - The sealing configuration of hydraulic turbine main shaft - Google Patents
The sealing configuration of hydraulic turbine main shaft Download PDFInfo
- Publication number
- CN204127316U CN204127316U CN201420520951.7U CN201420520951U CN204127316U CN 204127316 U CN204127316 U CN 204127316U CN 201420520951 U CN201420520951 U CN 201420520951U CN 204127316 U CN204127316 U CN 204127316U
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- China
- Prior art keywords
- main shaft
- sealing configuration
- hydraulic turbine
- belt
- holding ring
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Abstract
The utility model discloses a kind of sealing configuration of hydraulic turbine main shaft, be installed on the main shaft between runner and water pilot bearing, described main shaft one end is connected with described runner, the other end connects described water pilot bearing, described main shaft is provided with sealing configuration, described sealing configuration comprises: seal cartridge, packing box, end cap, some v belt, described seal cartridge is located at the outer wall place of described main shaft, described packing box is located at described seal cartridge outside and is reserved with circular groove between the two, described v belt is in filling in described circular groove one by one, described end cap is located at the oral area of described circular groove and side is just carried out spacing to described v belt.The utility model is a kind of sealing configuration that can reduce river course and seep water in hydraulic turbine main shaft, reduce maintenance, guarantee stable operation of unit, improve the hydraulic turbine main shaft of power benefit.
Description
Technical field
The utility model relates to hydraulic turbine main shaft sealing technology neck, particularly relates to a kind of sealing configuration that can reduce river course and seep water in hydraulic turbine main shaft, reduce maintenance, guarantee stable operation of unit, improve the hydraulic turbine main shaft of power benefit.
Background technique
Water power is the green health energy, obtains popularization energetically and supports widely.
In hydroelectric power, main shaft seal refers to by stuffing box packing, reduces runner and seeps water in main shaft.In routine techniques, main shaft seal assembly structure is primarily of seal cartridge, the braiding parts such as packing, I-shaped ring composition, and wherein seal cartridge directly contacts with main shaft, weaves packing as stuffing box packing, I-shaped ring as technical water supply path, lubrication and seal lining.In actual motion, there is following defect in main shaft seal:
1, I-shaped ring material is brass, and distinguish makes, and has no bolt.During unit operation, I-shaped ring is more easy to wear, comes off, and causes seal compression to reduce, and causes comparatively fast water.
2, knitting disc root timber matter is teflon.Quality is softer, if install accidentally, during unit operation, seal cartridge by the scratch of braiding packing, can damage the breach of the face of conjunction construction bolt braiding packing, cause comparatively fast water.
3, due to I-shaped ring and knitting disc radical valence lattice more expensive, and not easily purchase on the market, particularly I-shaped ring needs again to process.Above accessory, once damage, will extend the repair time, causes larger power generation loss.
Therefore, to need badly and a kind of sealing configuration that can reduce river course and seep water in hydraulic turbine main shaft, reduce maintenance, guarantee stable operation of unit, improve the hydraulic turbine main shaft of power benefit.
Model utility content
The purpose of this utility model is to provide a kind of sealing configuration that can reduce river course and seep water in hydraulic turbine main shaft, reduce maintenance, guarantee stable operation of unit, improve the hydraulic turbine main shaft of power benefit.
To achieve these goals, the technological scheme that the utility model provides is: the sealing configuration providing a kind of hydraulic turbine main shaft, be installed on the main shaft between runner and water pilot bearing, described main shaft one end is connected with described runner, the other end connects described water pilot bearing, described main shaft is provided with sealing configuration, described sealing configuration comprises: seal cartridge, packing box, end cap, some v belt, described seal cartridge is located at the outer wall place of described main shaft, described packing box is located at described seal cartridge outside and is reserved with circular groove between the two, described v belt is in filling in described circular groove one by one, described end cap is located at the oral area of described circular groove and side is just carried out spacing to described v belt.
Described sealing configuration also comprises for preventing river from spraying into the water holding ring of described water pilot bearing along described main shaft, and described water holding ring is sheathed on described main shaft.
The rubber plate that thickness is 6 millimeters is also provided with between described water holding ring and described main shaft.
Described water holding ring is splitted structure, and described water holding ring is laid with conductive plate equably.
Described sealing configuration also comprises earthing brush, and described water holding ring evenly holds out against described main shaft by bolt, described grounding carbon brush and described water holding ring reliable contacts.
Described v belt section is isosceles trapezoid, and described seal cartridge is close on the larger base of the innermost described v belt of described circular groove, and adjacent described v belt is closely arranged.
In described circular groove, two adjacent described v belt do not carry out refuting connecing, and stagger 180 degree.
Described end cap opposite side is connected with described pressure pad water tank, and described pressure pad water tank is connected with waste pipe.
Described waste pipe is transparent configuration.
Compared with prior art, due to the sealing configuration at the utility model hydraulic turbine main shaft, because described main shaft is provided with sealing configuration, described sealing configuration comprises: seal cartridge, packing box, end cap, some v belt and end cap, described seal cartridge is located at the outer wall place of described main shaft, described packing box is located at described seal cartridge outside and is reserved with circular groove between the two, described v belt is in filling in described circular groove one by one, and described end cap is located at described circular groove oral area and side is just carried out spacing to described v belt.Can necessary inflow be provided for the normal operation of described main shaft and river can be avoided to enter described water pilot bearing; guarantee described packing box and described pressure pad water tank long-term stable operation simultaneously; therefore, the utility model is a kind of sealing configuration that can reduce river course and seep water in hydraulic turbine main shaft, reduce maintenance, guarantee stable operation of unit, improve the hydraulic turbine main shaft of power benefit.
By following description also by reference to the accompanying drawings, the utility model will become more clear, and these accompanying drawings are for explaining embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of an embodiment of the sealing configuration of the utility model hydraulic turbine main shaft.
Fig. 2 is the cross section structure schematic diagram that water ring is installed on main shaft.
Embodiment
With reference now to accompanying drawing, describe embodiment of the present utility model, element numbers similar in accompanying drawing represents similar element.As mentioned above, as Fig. 1, shown in 2, the sealing configuration 100 of the hydraulic turbine main shaft that the utility model provides, be installed on the main shaft 2 between runner 1 and water pilot bearing 3, described main shaft 2 one end is connected with described runner 1, the other end connects described water pilot bearing 3, described main shaft 2 is provided with sealing configuration, described sealing configuration comprises: seal cartridge 4, packing box 5, end cap 6, v belt 7, described seal cartridge 4 is located at the outer wall place of described main shaft 2, described packing box 5 is located at described seal cartridge 4 outside and is reserved with circular groove (figure does not show) between the two, described v belt 7 is in filling in described circular groove one by one, described end cap 6 is located at the oral area of described circular groove and side is just carried out spacing to described v belt 7.
In an embodiment, described sealing configuration also comprises for preventing river from spraying into the water holding ring 8 of described water pilot bearing 3 along described main shaft 2, and described dash ring set 8 is located on described main shaft 2.
In an embodiment, between described water holding ring 8 and described main shaft 2, be also provided with the rubber plate 9 that thickness is 6 millimeters.
In an embodiment, described water holding ring 8 is splitted structure, and described water holding ring 8 is laid with conductive plate 10 equably.
In an embodiment, described sealing configuration also comprises earthing brush 11, and described water holding ring 8 evenly holds out against described main shaft 2 by bolt, described grounding carbon brush 11 and described water holding ring 8 reliable contacts.
In an embodiment, described v belt 7 section is isosceles trapezoid, and described seal cartridge 4 is close on the larger base of the innermost described v belt 7 of described circular groove, and adjacent described v belt 7 is closely arranged.
In an embodiment, in described circular groove, adjacent two described v belt 7 do not carry out refuting connecing, and stagger 180 degree.
In an embodiment, described end cap 6 opposite side is connected with described pressure pad water tank 12, and described pressure pad water tank 12 is connected with waste pipe 13.
In an embodiment, described waste pipe 13 is transparent configuration.
The assembly process of the hydraulic turbine main shaft 100 of sealing configuration that has now provided by the utility model is described below: 1, should by described seal cartridge 4 the breach casting epoxy resin closing face construction bolt before assembling, and cylindrical of polishing, scratch v belt can be avoided like this.
2, described seal cartridge 4 is generally 20mm with described packing box 5 gap, and the degree of depth is about 100mm, selects described v belt 7 as stuffing box packing.Because described three cuticles 7 are with section to be isosceles trapezoid, when filling described v belt 7, in order to make described v belt 7 and described packing box 5 close contact, described in that root of the inside, v belt 7 should be close to described seal cartridge in larger base, adjacent described v belt 7 close contact, installs successively subsequently.
3, adjacent described v belt 7 roll line does not need to paste, and adjacent roll line staggers 180 °.
4, before runner water-filling, compress described v belt 7 with described end cap 6, make it to put in place; After runner water-filling, slowly unclamp described end cap 6, increase the water leakage of described sealing configuration, until water leakage is full of described waste pipe 13, and can fill transparent hose be convenient to observe.
5, after start, compress described end cap 6 lentamente equably, measure the stroke of described end cap 6 simultaneously by Steel Ruler, keep a close eye on water leakage, when the section that leaks is less than the half of the area of described waste pipe 13 section, should stops regulating, withstand described packing box 5 with jackscrew.And notice that observing described v belt 7 abrasion condition and described pressure pad water tank 12 and packing box 5 seals situation, sealing between the two should not be lost efficacy, and avoided water to spill from described pressure pad water tank 12 with packing box 5.When water turbine normally works, described pressure pad water tank 12 does not have fever phenomenon, nor should have rubber like burnt flavor, and temperature of leaking is river temperature, and water leakage answers continuous uniform, without suddenly big or suddenly small phenomenon.
7, after start runs about 2 hours, if water leakage is normal, the temperature of described v belt 7 is normal, then adjust complete.
Described water holding ring 8 is installed additional for described main shaft 2:
When sealing configuration is debugged, due to the work mistake of maintainer or the shortcoming of experience, easily cause lubrication water few greatly, described v belt 7 is made to dry grind and burn, cause the phenomenon that water leakage sharply increases, river sprays into described water pilot bearing 3 along described main shaft 2, occurs water-in-oil (W-O) phenomenon, this is not only degrading running environment, also greatly threatens unit safety operation; Therefore, be necessary described water holding ring 8 is installed between sealing configuration and described water pilot bearing 3, but be faced with a following difficult problem when installing:
1, narrow space between sealing configuration and described water pilot bearing 3;
2, how shaft current draws;
3, how described water holding ring 8 will be installed.
The person skilled of each power plant according to drawing, in conjunction with actual conditions, can draw up a set of realistic plan, and the assembling of described water holding ring 8 with reference to shown in figure 2, can be described as follows:
1, in order to increase the mounting point of described water holding ring 8, described water pilot bearing 3 downstream end cap radial flange is prescinded.
2, the rubber plate 9 of described main shaft 2 outer wall winding thickness 6mm.
3, distinguish makes described water holding ring 8, guarantees described water holding ring 8 cylindrical concentricity and degree of finish, and on described water holding ring 8 uniform welding four pieces of conductive plates 10.
4, described water holding ring 8 compresses described rubber plate 9, allows described rubber plate 9 play the effect of sealing dash.
5, described water holding ring 8 holds out against described main shaft 2 equably with four bolts, guarantee that described water holding ring 8 is good with the Contact of described main shaft 2, avoid the phenomenon moved axially simultaneously; Described grounding carbon brush 11 and described water holding ring 8 reliable contacts, when described water holding ring 8 rotates, described grounding carbon brush 11 should without skip phenomenon.Shaft current is drawn by with under type:
Shaft current → main shaft → bolt → conductive plate → water holding ring → grounding carbon brush → ground.
The utility model, after main shaft seal technological transformation, is observed after long-play, and compared with before technological transformation, maintenance is little, and the consumption amount of protecting is little, and consumptive material is also few, serves good conversion result.
In conjunction with Fig. 1 and 2, due to the sealing configuration 100 at the utility model hydraulic turbine main shaft, because described main shaft 2 is provided with sealing configuration, described sealing configuration comprises: seal cartridge 4, packing box 5, end cap 6, v belt 7, described seal cartridge 4 is located at the outer wall place of described main shaft 2, described packing box 5 is located at described seal cartridge 4 outside and is reserved with circular groove between the two, described v belt 7 is in filling in described circular groove one by one, and described end cap 6 is located at described circular groove oral area and side is just carried out spacing to described v belt 7.Can necessary inflow be provided for the normal operation of described main shaft 2 and river can be avoided to enter described water pilot bearing 3; guarantee described packing box 5 and described pressure pad water tank 12 long-term stable operation simultaneously; therefore, the utility model is a kind of sealing configuration that can reduce river course and seep water in hydraulic turbine main shaft, reduce maintenance, guarantee stable operation of unit, improve the hydraulic turbine main shaft of power benefit.
Above disclosedly be only preferred embodiment of the present utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (9)
1. the sealing configuration of a hydraulic turbine main shaft, be installed on the main shaft between runner and water pilot bearing, described main shaft one end is connected with described runner, the other end connects described water pilot bearing, it is characterized in that: described main shaft is provided with sealing configuration, described sealing configuration comprises: seal cartridge, packing box, end cap, some v belt, described seal cartridge is located at the outer wall place of described main shaft, described packing box is located at described seal cartridge outside and is reserved with circular groove between the two, described v belt is in filling in described circular groove one by one, described end cap is located at the oral area of described circular groove and side is just carried out spacing to described v belt.
2. the sealing configuration of hydraulic turbine main shaft as claimed in claim 1, is characterized in that: described sealing configuration also comprises for preventing river from spraying into the water holding ring of described water pilot bearing along described main shaft, and described water holding ring is sheathed on described main shaft.
3. the sealing configuration of hydraulic turbine main shaft as claimed in claim 2, is characterized in that: be also provided with the rubber plate that thickness is 6 millimeters between described water holding ring and described main shaft.
4. the sealing configuration of hydraulic turbine main shaft as claimed in claim 2 or claim 3, is characterized in that: described water holding ring is splitted structure, and described water holding ring is laid with conductive plate equably.
5. the sealing configuration of hydraulic turbine main shaft as claimed in claim 4, it is characterized in that: described sealing configuration also comprises earthing brush, described water holding ring evenly holds out against described main shaft by bolt, described grounding carbon brush and described water holding ring reliable contacts.
6. the sealing configuration of hydraulic turbine main shaft as claimed in claim 1, it is characterized in that: described v belt section is isosceles trapezoid, described seal cartridge is close on the larger base of the innermost described v belt of described circular groove, and adjacent described v belt is closely arranged.
7. the sealing configuration of the hydraulic turbine main shaft as described in claim 1 or 6, is characterized in that: in described circular groove, and two adjacent described v belt do not carry out refuting connecing, and stagger 180 degree.
8. the sealing configuration of hydraulic turbine main shaft as claimed in claim 1, it is characterized in that: described end cap opposite side is connected with pressure pad water tank, and described pressure pad water tank is connected with waste pipe.
9. the sealing configuration of hydraulic turbine main shaft as claimed in claim 8, is characterized in that: described waste pipe is transparent configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520951.7U CN204127316U (en) | 2014-09-11 | 2014-09-11 | The sealing configuration of hydraulic turbine main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520951.7U CN204127316U (en) | 2014-09-11 | 2014-09-11 | The sealing configuration of hydraulic turbine main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204127316U true CN204127316U (en) | 2015-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420520951.7U Expired - Fee Related CN204127316U (en) | 2014-09-11 | 2014-09-11 | The sealing configuration of hydraulic turbine main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204127316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352460A (en) * | 2022-01-20 | 2022-04-15 | 高海玉 | Novel bulb tubular unit main shaft seal water retaining device |
-
2014
- 2014-09-11 CN CN201420520951.7U patent/CN204127316U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352460A (en) * | 2022-01-20 | 2022-04-15 | 高海玉 | Novel bulb tubular unit main shaft seal water retaining device |
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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: 20150128 Termination date: 20160911 |