CN215252713U - Tail water backflow preventing device for hydropower station - Google Patents
Tail water backflow preventing device for hydropower station Download PDFInfo
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- CN215252713U CN215252713U CN202120060822.4U CN202120060822U CN215252713U CN 215252713 U CN215252713 U CN 215252713U CN 202120060822 U CN202120060822 U CN 202120060822U CN 215252713 U CN215252713 U CN 215252713U
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- sealing cover
- cover plate
- water
- flange
- water sealing
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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 discloses a hydropower station tail water backflow prevention device, which comprises a water sealing cover plate, wherein a plurality of connecting holes are arranged around the water sealing cover plate, and meanwhile, a regulating hole and a connecting flange which are mutually matched are also arranged on the water sealing cover plate; flange seal cover top be higher than water sealing cover plate place horizontal plane to reserve sufficient space of letting back for the pull rod, avoid the pull rod to cause the interference to the sealed of regulation hole, guarantee under any operating mode homoenergetic enough to realize the stable sealed to the work gate slot, avoid the tail water to flow backward into the electricity generation factory building, guarantee power generating equipment's safety, steady operation.
Description
Technical Field
The utility model relates to a hydroelectric equipment technical field, concretely relates to power station prevents tail water device of flowing backward.
Background
The arrangement form of the underground type powerhouse of the hydropower station part is that the main transformer chamber is close to a tail water gate chamber, and the tail water gate chamber is provided with a working gate groove and a storage gate groove of a unit tail water pipe overhaul gate. When the unit normally generates electricity, the maintenance gate is stored in the door storage groove, the working door groove water sealing cover plate covers the working door groove, water sealing is tight, and tail water backflow when downstream tail water is too high is prevented from causing flooding of a workshop. However, when the unit is overhauled or the flow channel is cleaned, after the overhaul gate falls to the working position of the working gate slot, the end of the gate pull rod device often protrudes out of the ground by a certain height, so that the water sealing cover plate of the working gate slot cannot be covered, when the downstream tail water is too high, the tail water flows into the plant by turning over the working gate slot, and the major safety accident of the plant flooding is caused
SUMMERY OF THE UTILITY MODEL
To the defect that the tail water that exists among the prior art easily flows backward, the utility model discloses a power station prevents tail water device of flowing backward adopts the device can guarantee to the stable of work door slot under any operating mode sealed to avoid the tail water to flow backward, guarantee generating set's stability, safety in production.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a hydropower station tail water backflow prevention device comprises a water sealing cover plate, wherein a plurality of connecting holes are uniformly formed in the periphery of the water sealing cover plate; the water sealing cover plate is also provided with an adjusting hole, and a connecting flange matched with the adjusting hole is fixedly arranged on the water sealing cover plate; the water sealing cover plate is connected with a flange sealing cover used for sealing the adjusting hole in an overhauling state through a connecting flange; the water sealing cover plate is also connected with a flange sealing plate used for sealing the adjusting hole under a non-overhaul state through a connecting flange.
Preferably, the periphery of the adjusting hole is also provided with a support lining plate fixedly connected with the water sealing cover plate, and the connecting flange is fixedly connected with the support lining plate.
Preferably, still be provided with a plurality of strengthening ribs on the water-tight apron, link to each other through the splice bar between the strengthening rib.
Preferably, the flange sealing cover and the flange sealing plate are both provided with sealing rubber pads matched with the water sealing cover plate.
Preferably, the top parts of the flange sealing cover and the flange sealing plate are both fixedly provided with hanging lugs.
Preferably, the bottom surface of the water sealing cover plate is fixedly provided with a sealing rubber pad, and the top of the water sealing cover plate is uniformly provided with a plurality of hanging lugs.
Preferably, a supporting fixing frame is arranged in the adjusting hole, and a fixing screw hole is formed in the supporting fixing frame.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model comprises a water sealing cover plate, a plurality of connecting holes are arranged around the water sealing cover plate, and meanwhile, a regulating hole and a connecting flange which are mutually matched are also arranged on the water sealing cover plate, and the water sealing cover plate is also connected with a flange sealing cover used for sealing the regulating hole through the connecting flange; meanwhile, a supporting and fixing frame is also arranged in the adjusting hole, and a fixing screw hole is formed in the supporting and fixing frame;
when the utility model is in a non-maintenance state, the water sealing cover plate is matched with the connecting bolt on the installation station through the connecting hole, thereby realizing the fixed installation of the water sealing cover plate, and simultaneously, the adjusting hole is sealed through the flange sealing plate, thereby preventing tail water from flowing backwards in the working door slot; when the maintenance state, at first remove the water-sealing cover plate after will dismantling through hoisting equipment, hoist the corresponding station of gate inslot to work from storing up the gate inslot again with the gate, at last will seal the water-sealing cover plate reduction again, the pull rod that is used for hoist and mount gate simultaneously stretches out from the regulation hole, because flange sealed cowling salient in the water-sealing cover plate place horizontal plane top, consequently it can effectively avoid the pull rod to adjust the harmful effects of hole sealing device installation, guarantee that the homoenergetic enough realization is to stable sealing of regulation hole under any state prevents that the tailwater from flowing backward the power generation factory building, improve the security of power station work.
Meanwhile, the adjusting hole is sealed through the flange sealing plate in a non-overhaul state, so that on one hand, compared with a flange sealing cover, the flange sealing cover is lower in weight and more convenient to disassemble and install, and simultaneously, the load of the water sealing cover plate is reduced; on the other hand, the water-sealing cover plate does not occupy more upper space of the water-sealing cover plate, is more attractive, and does not cause obstacles to normal production.
2. The utility model discloses still be provided with all around the regulation hole with the fixed interior welt of support that links to each other of water-tight apron, through the intensity and the rigidity of support interior welt fastening flange and water-tight apron junction, also can effectively improve the supporting role to flange seal cover and flange seal board simultaneously, improve the structural stability of the complete set of equipment.
3. The utility model discloses still be provided with a plurality of strengthening ribs on sealing the water apron, link to each other through the splice bar is fixed between the strengthening rib, through the overall structure intensity of strengthening rib reinforcing seal apron to avoid the structural deformation who arouses after the installation of flange seal cover, connect all strengthening ribs into a whole through the splice bar simultaneously, further improve the anti deformability of sealing the water apron, guarantee to seal the structural stability of water apron.
4. The utility model discloses a seal all to be provided with sealing rubber pad on water cover plate, flange seal cover and the flange closing plate, the gap that the plasticity through sealing rubber pad will connect sealed face is filled to improve the seal, can also cushion the connecting piece simultaneously, avoid the hard contact between the part.
5. The utility model discloses be provided with on water-sealed apron, flange seal cover and the flange closing plate and hang the journal stirrup, provide corresponding hoisting point for the dismantlement and the installation of equipment through hanging the journal stirrup, and then improve the security and the convenience of maintenance process, improve maintenance efficiency.
6. The utility model discloses still be provided with the support mount in the regulation hole, be provided with fixed screw on the support mount, fix and spacing the pull rod through supporting mount and fixed screw, avoid its and equipment such as water-sealed apron to bump, it also can play supplementary limiting displacement to the gate simultaneously, improves the security.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention along the line A-A;
FIG. 3 is a schematic structural view of the flange sealing cover of the present invention;
FIG. 4 is a schematic structural view of a flange sealing plate of the present invention;
FIG. 5 is a schematic view of the installation of the present invention in a working state;
FIG. 6 is a schematic view of the installation of the utility model in the maintenance state;
reference numerals: 1. a water sealing cover plate 2, a connecting hole 3, an adjusting hole 4, a connecting flange 5, a flange sealing cover 6, a flange sealing plate 7, a supporting lining plate 8, a reinforcing rib 9, a connecting rib 10, a sealing rubber pad 11, a hanging support lug 12, a supporting fixing frame 13 and a fixing screw hole,
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following embodiments.
As a basic embodiment of the present invention, the present invention discloses a device for preventing backflow of tail water in a hydropower station, which has a specific structure as shown in fig. 1 and 4, and includes a water sealing cover plate 1, wherein a plurality of connecting holes 2 are formed around the water sealing cover plate 1, a plurality of parallel reinforcing ribs 8 are uniformly arranged on the water sealing cover plate 1, the reinforcing ribs 8 are fixedly connected with the water sealing cover plate 1 by welding, adjacent reinforcing ribs 8 are connected with each other by connecting ribs 9, and the bottom surfaces of the connecting ribs 9 are also fixedly connected with the water sealing cover plate 1 by welding;
the water sealing cover plate 1 is also provided with adjusting holes 3, supporting lining plates 7 are arranged around the adjusting holes 3, and the supporting lining plates 7 are fixedly connected with the water sealing cover plate 1 through welding; the support lining plate 7 is provided with a connecting flange 4;
in a maintenance state, the connecting flange 4 is connected with a flange sealing cover 5, so that the adjusting hole 3 is sealed by the flange sealing cover 5; sealing rubber pads 10 are arranged on the bottom surfaces of the water sealing cover plate 1 and the flange sealing cover 5, hanging lugs 11 are arranged on the top of the water sealing cover plate 1 and the flange sealing cover 5, and 2-4 hanging lugs 11 are symmetrically distributed on the water sealing cover plate 1;
meanwhile, in a non-overhaul state, the water sealing cover plate 1 can be connected with a flange sealing plate 6 through a connecting flange 4, so that the adjusting hole 3 is sealed through the flange sealing plate 6; the bottom surface of the flange sealing plate 6 is provided with a sealing rubber pad 10 matched with the connecting flange 4, and the top of the flange sealing plate is provided with a hanging lug 11.
A supporting and fixing frame 12 is fixedly arranged in the adjusting hole 3, and a fixing screw hole 13 for fixing the pull rod is formed in the supporting and fixing frame 12;
when the utility model is in a non-maintenance state, the water sealing cover plate is matched with the connecting bolt on the installation station through the connecting hole, thereby realizing the fixed installation of the water sealing cover plate, and simultaneously, the adjusting hole is sealed through the flange sealing plate, thereby preventing tail water from flowing backwards in the working door slot; when the maintenance state, at first will remove the water-sealing cover plate after demolising through hoisting equipment, hoist the corresponding station of gate inslot to the work door with the gate from storing up the door inslot again, at last will seal the water-sealing cover plate reduction again, a pull rod for hoisting the gate simultaneously stretches out from the regulation hole, because flange sealed cowling salient in the water-sealing cover plate place horizontal plane top, consequently it can effectively avoid the pull rod to adjust the harmful effects of hole sealing device installation, guarantee that the homoenergetic enough realization prevents the tailwater and flows backward the power generation factory building to the stable seal of regulation hole under any state, improve the security of power station work.
Meanwhile, the adjusting hole is sealed through the flange sealing plate in a non-overhaul state, so that on one hand, compared with a flange sealing cover, the flange sealing cover is lower in weight and more convenient to disassemble and install, and simultaneously, the load of the water sealing cover plate is reduced; on the other hand, the water-sealing cover plate does not occupy more upper space of the water-sealing cover plate, is more attractive, and does not cause obstacles to normal production.
Claims (7)
1. A hydropower station tail water backflow prevention device comprises a water sealing cover plate (1), wherein a plurality of connecting holes (2) are uniformly formed in the periphery of the water sealing cover plate (1); the method is characterized in that: the water sealing cover plate (1) is also provided with an adjusting hole (3), and the water sealing cover plate (1) is fixedly provided with a connecting flange (4) matched with the adjusting hole (3); the water sealing cover plate (1) is connected with a flange sealing cover (5) used for sealing the adjusting hole (3) in an overhauling state through a connecting flange (4); the water sealing cover plate (1) is also connected with a flange sealing plate (6) used for sealing the adjusting hole (3) in a non-overhaul state through a connecting flange (4).
2. The hydropower station tail water backflow prevention device according to claim 1, wherein: and supporting lining plates (7) fixedly connected with the water sealing cover plate (1) are further arranged around the adjusting holes (3), and the connecting flange (4) is fixedly connected with the supporting lining plates (7).
3. The hydropower station tail water backflow prevention device according to claim 1, wherein: the water sealing cover plate (1) is further provided with a plurality of reinforcing ribs (8), and the reinforcing ribs (8) are connected through connecting ribs (9).
4. The hydropower station tail water backflow prevention device according to claim 1, wherein: and sealing rubber pads (10) matched with the water sealing cover plate (1) are arranged on the flange sealing cover (5) and the flange sealing plate (6).
5. The hydropower station tail water backflow prevention device according to claim 1, wherein: and hanging lugs (11) are fixedly arranged at the tops of the flange sealing cover (5) and the flange sealing plate (6).
6. The hydropower station tail water backflow prevention device according to claim 1, wherein: the bottom surface of the water sealing cover plate (1) is fixedly provided with a sealing rubber pad (10), and the top of the water sealing cover plate (1) is uniformly provided with a plurality of hanging lugs (11).
7. The hydropower station tail water backflow prevention device according to claim 1, wherein: a supporting and fixing frame (12) is arranged in the adjusting hole (3), and a fixing screw hole (13) is formed in the supporting and fixing frame (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120060822.4U CN215252713U (en) | 2021-01-11 | 2021-01-11 | Tail water backflow preventing device for hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120060822.4U CN215252713U (en) | 2021-01-11 | 2021-01-11 | Tail water backflow preventing device for hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215252713U true CN215252713U (en) | 2021-12-21 |
Family
ID=79498169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120060822.4U Active CN215252713U (en) | 2021-01-11 | 2021-01-11 | Tail water backflow preventing device for hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215252713U (en) |
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2021
- 2021-01-11 CN CN202120060822.4U patent/CN215252713U/en active Active
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