CN213450658U - Top cover drainage device of axial flow type water turbine - Google Patents
Top cover drainage device of axial flow type water turbine Download PDFInfo
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- CN213450658U CN213450658U CN202021418206.3U CN202021418206U CN213450658U CN 213450658 U CN213450658 U CN 213450658U CN 202021418206 U CN202021418206 U CN 202021418206U CN 213450658 U CN213450658 U CN 213450658U
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- annular groove
- water turbine
- axial flow
- drainage device
- groove body
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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
The utility model provides an axial-flow type hydraulic turbine top cap drainage device, locate the ring shape backplate on the hydraulic turbine main shaft rotator including the cover to and fix on hydraulic turbine water conservancy diversion awl seal holder and lie in its top of backplate below and take the annular cell body of uncovered, middle part area cavity, this annular cell body is uncovered to connect mutually through sealing member and backplate outer fringe, and its characterized in that is equipped with a plurality of blades along backplate outer fringe bottom interval, and is equipped with the wash port on the ring channel body wall. When the water turbine main shaft rotating body drives the back plate to rotate, the main shaft seal water leakage is guided into the cavity of the annular groove body under the action of centrifugal force generated by rotation of the blades at the bottom of the back plate and then discharged from the water discharging holes in the wall of the annular groove body, so that unpowered water discharging is realized, energy is saved, economy is realized, the water discharging effect is good, the mounting quantity of the top cover water discharging pump is reduced, the fault rate and the power consumption of the top cover water discharging pump are reduced, and the maintenance cost of the top cover.
Description
Technical Field
The utility model relates to a drainage device, especially an axial flow type hydraulic turbine top cap drainage device belong to hydraulic turbine manufacturing and designing technical field.
Background
In the operation of axial-flow type hydroelectric set, the main shaft seal leaks a lot, and top cap catchment space is less in addition, and prior art only adopts conventional water pumps such as immersible pump or self priming pump to discharge sealed leaking, causes the top cap drain pump to start the pump frequently, increases the power consumption rate and the fault rate of top cap drain pump easily. The water is drained by a plurality of drainage pumps or high-power drainage pumps which cannot be installed due to the narrow water collecting space of the top cover, and the water is uneconomical. When the main shaft seal leaks water seriously and can not be discharged in time, the safe operation of the water guide bearing can be threatened, and even serious accidents of flooding a factory building can occur. There is therefore a need for improvements in the prior art.
Disclosure of Invention
For solving current axial flow turbine main shaft seal and leaking, make the top cap drain pump frequently start to increase drain pump fault rate and consumption, influence the safe operation scheduling problem of water guide bearing even, the utility model provides an axial flow turbine top cap drainage device.
The utility model discloses a following technical scheme accomplishes: the utility model provides an axial-flow type hydraulic turbine top cap drainage device, locate the ring shape backplate on the hydraulic turbine mainshaft rotator including the cover, and fix on hydraulic turbine water conservancy diversion awl seal holder and lie in its top of backplate below and take uncovered, the annular cell body of cavity is taken to the middle part, this annular cell body is uncovered to be joined in marriage mutually with the backplate outer fringe through the sealing member, its characterized in that is equipped with a plurality of blades along backplate outer fringe bottom interval, and be equipped with the wash port on the ring channel body wall, so that when hydraulic turbine mainshaft rotator drives the backplate rotatory, the main shaft seal leaks under the centrifugal force effect that the rotatory production of backplate bottom blade, water conservancy diversion to the ring channel body cavity in, later discharge from the.
The backplate includes that the cylinder in vertical shaft hole is established at the center, locates the peripheral ring board of cylinder, and vertical shaft hole is connected with hydraulic turbine main shaft rotator, and the interval is equipped with a plurality of blades in ring board bottom.
The blades arranged at intervals are all arranged into vertical plates, are positioned in the cavity of the annular groove body and are spirally distributed for a circle at intervals along the bottom surface of the annular plate, so that the spindle is sealed, leaked and guided into the cavity of the annular groove body along with the centrifugal force generated by the rotation of the spindle rotating body of the water turbine, and then the spindle is quickly discharged from the water discharge hole in the wall of the annular groove body.
One or more water drainage holes are formed in the wall of the annular groove body, and the water is drained outwards through a drainage pipe, so that unpowered drainage is realized.
The back plate is formed by combining at least two petals and is connected through a connecting plate, a bolt and a nut so as to be convenient to disassemble and assemble.
The annular groove body is formed by combining at least two sections and is connected through a connecting plate, a bolt and a nut so as to be convenient to disassemble and assemble.
The utility model has the advantages of it is following and effect: by adopting the scheme, when the main shaft rotating body of the water turbine drives the back plate to rotate, the main shaft seal water leakage is guided into the cavity of the annular groove body under the action of centrifugal force generated by rotation of the blades at the bottom of the back plate and then discharged from the water discharge holes in the wall of the annular groove body, so that unpowered water discharge is realized, energy is saved, economy is realized, the water discharge effect is good, the installation quantity of the top cover water discharge pump is reduced, the fault rate and the power consumption of the top cover water discharge pump are reduced, and the maintenance cost of. The utility model discloses can assemble with former host computer equipment convenient and fast ground, need not change former host computer equipment structure, it is convenient to install additional, easy realization. Is an ideal drainage device.
Drawings
FIG. 1 is a view of the installation position of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic view of a portion of the structure of FIG. 2;
FIG. 4 is a top view of FIG. 3;
fig. 5 is a bottom view of the back plate of fig. 3.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The utility model provides an axial-flow type hydraulic turbine top cover drainage device, including the annular backplate 2 of cover locating on hydraulic turbine main shaft rotator 1 to and fix on hydraulic turbine water conservancy diversion awl seal holder 5 and lie in its top of backplate 2 below and take the uncovered, the middle part takes the annular cell body 4 of cavity 41, this annular cell body 4 uncovered connects with backplate 2 through sealing member 6, countersunk head 7 and clamp plate 8, annular backplate 2 is fixed on base 22 through the screw, is equipped with a plurality of blades 3 along backplate 2 bottom interval, and is equipped with the wash port on the wall of annular cell body 4; the back plate 2 comprises a cylinder with a vertical shaft hole in the center and a circular plate 21 arranged on the periphery of the cylinder, the vertical shaft hole is connected with the water turbine main shaft rotating body 1, and a plurality of blades 3 are arranged at the bottom of the circular plate 21 at intervals; the blades 3 arranged at intervals are all vertical plates, are positioned in the cavity 41 of the annular groove body 4 and are spirally distributed for a circle at intervals along the bottom surface of the annular plate 21, so that the spindle is sealed, leaked and guided into the cavity 41 of the annular groove body 4 by centrifugal force generated by rotation of the spindle rotating body 1 of the water turbine, and then is quickly discharged from a water discharge hole in the wall of the annular groove body 4; one or more water drainage holes are formed in the wall of the annular groove body 4, and the water is drained outwards through a drainage pipe, so that unpowered drainage is realized; the back plate 2 is formed by combining two petals and is connected through a connecting plate 23 and a bolt and a nut so as to be convenient to disassemble and assemble; the annular groove body 4 is formed by combining two sections and is connected through a connecting plate 42 and a bolt and a nut so as to be convenient to disassemble and assemble.
When the water turbine spindle rotator 1 drives the back plate 2 to rotate, spindle seal water leakage is guided to the cavity 41 of the annular groove body 4 under the action of centrifugal force generated by rotation of the blades 3 at the bottom of the back plate 2 and then discharged from the water discharge holes in the wall of the annular groove body 4, so that unpowered water discharge is realized.
Claims (6)
1. The top cover drainage device of the axial flow type water turbine comprises a circular ring-shaped back plate which is sleeved on a main shaft rotating body of the water turbine, and an annular groove body which is fixed on a guide cone sealing support of the water turbine and is positioned below the back plate, wherein the top of the annular groove body is provided with an opening, the middle of the annular groove body is provided with a cavity, the opening of the annular groove body is connected with the outer edge of the back plate in a matching mode through a sealing piece, the top cover drainage device is characterized in that a plurality.
2. The axial flow type hydraulic turbine head cover drainage device according to claim 1, wherein the back plate comprises a cylinder with a vertical shaft hole at the center, and a circular ring plate arranged at the periphery of the cylinder, the vertical shaft hole is connected with the hydraulic turbine main shaft rotator, and a plurality of blades are arranged at the bottom of the circular ring plate at intervals.
3. The axial flow water turbine head cover drainage device of claim 1, wherein the plurality of blades arranged at intervals are all vertical plates, are positioned in the cavity of the annular groove body, and are spirally distributed at intervals along the bottom surface of the annular plate.
4. The axial flow water turbine header drain of claim 1, wherein said annular channel wall drain holes are one or more.
5. The axial flow water turbine header drain of claim 1, wherein the back plate is formed by at least two pieces of material and is connected by a connecting plate and bolts and nuts.
6. The axial flow water turbine head cover drainage device of claim 1, wherein the annular groove is formed by combining at least two sections and is connected by a connecting plate, bolts and nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021418206.3U CN213450658U (en) | 2020-07-17 | 2020-07-17 | Top cover drainage device of axial flow type water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021418206.3U CN213450658U (en) | 2020-07-17 | 2020-07-17 | Top cover drainage device of axial flow type water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213450658U true CN213450658U (en) | 2021-06-15 |
Family
ID=76306160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021418206.3U Active CN213450658U (en) | 2020-07-17 | 2020-07-17 | Top cover drainage device of axial flow type water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213450658U (en) |
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2020
- 2020-07-17 CN CN202021418206.3U patent/CN213450658U/en active Active
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