CN218559118U - Buoyancy increasing device for front trash blocking and discharging guide buoyancy tank of hydropower station dam - Google Patents
Buoyancy increasing device for front trash blocking and discharging guide buoyancy tank of hydropower station dam Download PDFInfo
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- CN218559118U CN218559118U CN202222531917.7U CN202222531917U CN218559118U CN 218559118 U CN218559118 U CN 218559118U CN 202222531917 U CN202222531917 U CN 202222531917U CN 218559118 U CN218559118 U CN 218559118U
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- guide
- buoyancy
- buoyancy tank
- dam
- wire rope
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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
Abstract
The device comprises a guide floating box buoyancy increasing device for a trash drainage guide floating box in front of a hydropower station dam, wherein the guide floating box is arranged in a guide groove of a pier of the hydropower station dam and comprises a support, fixed pulleys, a traction steel wire rope, a plurality of balancing weights and lifting lugs; the traction steel wire rope bypasses the corresponding fixed pulley block, two ends of the traction steel wire rope are respectively and fixedly connected with the lifting lug and the balancing weight, and the number of the balancing weight is determined according to the weight of the guide buoyancy tank and the buoyancy value of the balancing weight. The utility model discloses a set up a plurality of balancing weights and be connected with the direction flotation tank, rely on the towed mode of counter weight to increase direction flotation tank buoyancy in a flexible way for the direction flotation tank is adjusted from top to bottom by oneself along with the water level change, has avoided the influence of jam and water impact, has improved the hydroenergy utilization ratio, has optimized the unit operation operating mode, has actual application effect.
Description
Technical Field
The utility model relates to a power station blocks dirty supplementary technical field, especially a block dirty row of leading flotation tank buoyancy increase device before power station dam.
Background
The front trash rack of the hydropower station dam is mainly used for intercepting floaters on the front upstream of the dam and preventing the floaters from entering a flow channel of a generator set to cause adverse effects on the operation condition of the generator set. According to the structure form of the trash rack, the trash rack is generally divided into an articulated type trash rack and a flexible trash rack. The hinged trash rack mainly comprises a floating box body, grid bars, a guide floating box, a slide rail groove and embedded parts, wherein the floating box body is divided into a plurality of floating box sections, the sections are connected through hinged shafts, and two ends of the floating box body are fixed through the guide floating box embedded in a concrete buttress sliding groove. The hinged trash rack structure can vertically lift along with the change of reservoir water level under the general condition, but the guide buoyancy tanks used for fixing at the two ends of the buoyancy tank body are easily affected by the jamming of floaters and the impact force of water flow, so that the guide buoyancy tanks are prevented from moving vertically in concrete buttress chutes, the trash rack cannot automatically lift along with the reservoir water level, the end parts of the trash rack are suspended or submerged, and floaters enter a water inlet of a unit.
The most of the prior adjusting modes of the jam of the trash blocking and discharging guide floating box before the dam are that the floating objects in the gaps between the guide floating box and the sliding grooves are manually cleared away or the manual block traction mode is adopted to lift and lower the jammed trash blocking and discharging end part guide floating box so as to adapt to the change of the water level, so that not only time and labor are consumed, but also the range of the adjusting height is limited. Therefore, the design of the guide buoyancy tank structure which can avoid the buoyancy tank from being jammed and adapt to the water level change is the problem to be solved at present.
Disclosure of Invention
The utility model aims at overcoming the above-mentioned not enough of prior art and providing a dirty guide flotation tank buoyancy increase device of arranging before power station dam, adopting the hoisting mechanism form, rely on the pull mode of counter weight to increase the friction of metal system trash guide flotation tank buoyancy in order to offset the floater to the flotation tank jam before the power station dam, realize the prevention and eliminate guide flotation tank jam and the purpose that the guide flotation tank adjusted from top to bottom along with the water level change by oneself.
The technical scheme of the utility model is that: the utility model provides a trash rack arranges guide buoyancy tank buoyancy increase device in front of power station dam, the guide buoyancy tank sets up in the guide way of power station dam buttress, including support, fixed pulley, traction wire rope, a plurality of balancing weight and lug.
The support is fixedly arranged at the top of a buttress of a dam of a hydropower station, the two lifting lugs are respectively fixedly arranged on the upper surface of the guide buoyancy tank, and two groups of fixed pulleys are respectively and correspondingly arranged on two sides of the bottom surface of a top plate of the support; the traction steel wire rope bypasses the corresponding fixed pulley block, one end of the traction steel wire rope is fixedly connected with the lifting lug on the guide buoyancy tank, and the other end of the traction steel wire rope is fixedly connected with the plurality of balancing weights.
The utility model discloses further technical scheme is: the number of the lifting lugs is three, one of the lifting lugs is fixed on the surface of the front section of the guide floating box, the other two lifting lugs are fixed on the surface of the middle and rear sections of the guide floating box, and the three lifting lugs are fixedly arranged on the guide floating box in a triangular shape.
The utility model discloses a further technical scheme is: the number of the balancing weights is determined according to the weight of the guide buoyancy tank and the buoyancy value of the balancing weights.
The utility model discloses still further technical scheme is: the lifting lug and the guide buoyancy tank are fixed by welding, and the fixed pulley and the top plate of the support are fixed by welding.
The utility model discloses still further technical scheme is: the top of the bracket is provided with a manual balancing weight adjusting mechanism.
Compared with the prior art, the utility model has the following characteristics:
the utility model discloses a hoisting mechanism form adjusts the buoyancy of direction flotation tank according to the towed mode of counter weight, greatly reduced articulated type block dirty arrange because of the floater bite the direction flotation tank can't be automatic along with the possibility that reservoir water level change adjusted, improved block dirty arrange the effect of intercepting floater, reduced unit water inlet pressure differential, optimized unit operation condition, improved the electricity generation benefit.
The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a right side view of FIG. 1;
fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
Detailed Description
In the first embodiment, as shown in fig. 1-2, the buoyancy increasing device of the front trash holding and discharging guide buoyancy tank of the hydroelectric power station dam comprises a support 1, a fixed pulley 2, a traction steel wire rope 3, a plurality of balancing weights 4 and lifting lugs 5.
The support 1 is fixedly arranged at the top of the hydropower station dam buttress 6, and the support 1 is arranged according to the specific shape of the hydropower station dam buttress 6, for example, the support can be arranged into a top plate and two support rod structures, or other similar structures capable of being fixed. According to the geographical position and climate of the hydropower station, a proper material of the bracket 1, a wood bracket or an iron bracket is selected. The height of the top plate of the support 1 and the distance between the top of the abutment 6 of the hydropower station dam are set according to the actual situation of the site.
The number of the lifting lugs 5 is two, and the two lifting lugs are respectively fixedly arranged on the upper surface of the guide buoyancy tank 7. In order to further improve the tightness between the lifting lug 5 and the guiding buoyancy tank 7, the lifting lug 5 is fixed on the guiding buoyancy tank 7 by welding, and the material of the lifting lug 5 is preferably stainless steel or iron coated with waterproof material.
The fixed pulleys 2 are two groups, each group of fixed pulleys 2 is two, and the two fixed pulleys 2 are correspondingly arranged on two sides of the bottom surface of the top plate of the support 1 respectively. The fixed pulley 2 is welded or detachably arranged on the bracket 1 according to the actual situation of the field.
And the traction steel wire rope 3 bypasses the corresponding fixed pulley block 2. One end of the traction steel wire rope 3 is fixedly connected with the lifting lugs 5 on the guide buoyancy tank 7, and the other end of the traction steel wire rope is fixedly connected with the plurality of balancing weights 4.
The number of the balancing weights 4 is determined according to the weight of the guide buoyancy tank 7 and the buoyancy value of the balancing weights. Taking Ling Jin front dam of beach hydroelectric station as an example, according to the structure of the trash rack, the dead weight of the guide buoyancy tank 7 is 6.384T, the total buoyancy value of the guide buoyancy tank 7 is calculated to be 10.2T by a drainage method, so that the buoyancy value of the guide buoyancy tank 7 is 3.816T, and a counter weight 4 with proper weight is arranged according to the buoyancy value of the floating, so that the guide buoyancy tank 7 can still freely and automatically lift along with the water level even if being affected by the blockage of floaters in water, the floating tank and the trash rack are prevented from being suspended or submerged, the trash rack can be flexibly adjusted up and down along with the water level, and the effect of ensuring the trash rack to block floaters on the water surface is achieved.
Furthermore, considering the situation that the friction force formed by the jamming between the floating objects and the buoyancy tank changes, a manual adjusting mechanism (not shown in the figure) for the weight of the balancing weight is arranged at the top of the device bracket 1, the manual adjusting mechanism can be selected from a pulley or a hoist to be manually adjusted, and the like, so that the traction force of the balancing weight can be flexibly adjusted to meet the requirement that the buoyancy of the guiding buoyancy tank changes along with the water level.
The second embodiment, as shown in fig. 3, is substantially similar to the first embodiment in structure, and differs therefrom in that: the quantity of lug 5 is three, and one of them is fixed in the anterior segment surface of direction flotation tank 7, and two other middle and back end surfaces that are fixed in direction flotation tank 7, three lug are the fixed setting of triangle-shaped shape on direction flotation tank 7 for the atress of fixed pulley 2, traction wire rope 3 is comparatively all, avoids horizontal pulling force, improves fixity and the simple operation nature between lug 5 and the direction flotation tank 7. Likewise, the number of the traction ropes 3 is modified correspondingly according to the arrangement of the lifting lugs 5.
Use this direction flotation tank buoyancy to increase device and be applied to peach yuan county and expect stream town Ling Jintan water hydropower station for the example, briefly state the utility model discloses a use:
ling Jin beach hydroelectric station dam front trash holding row is located at an inlet of an upstream left bank generating set, is arc-shaped and supported by three support piers, is completed in 1999 and put into operation, and mainly has the function of holding up floating objects on the water surface at a water inlet of the generating set. Prevent that the floater gets into unit inlet, avoid bringing the hidden danger for the safe and stable operation of unit.
Will the utility model discloses a buoyancy increases device fixed mounting on this power station, is equipped with the balancing weight 4 of suitable weight according to the dead weight and the total buoyancy value of direction flotation tank 7. When rivers change or there is the floater card to block when arranging dirty, the weight of balancing weight 4 acts on direction flotation tank 7 through traction wire 3, lug 5 for direction flotation tank 7 drives the flotation tank and blocks dirty row rather than being connected and reciprocate, not only can block the surface of water floater, and the unsmooth influence of the frictional force that overcomes between floater and the flotation tank and cause the flotation tank that can be fine.
Claims (5)
1. Trash drainage guide buoyancy increasing device before power station dam, guide buoyancy tank set up in the guide way of power station dam buttress, characterized by: the hydraulic power station dam pier comprises a support, fixed pulleys, a traction steel wire rope, a plurality of balancing weights and lifting lugs, wherein the support is fixedly arranged at the top of a dam pier of a hydropower station, the two lifting lugs are respectively and fixedly arranged on the upper surface of a guide buoyancy tank, and two groups of fixed pulleys are respectively and correspondingly arranged on two sides of the bottom surface of a top plate of the support; the traction steel wire rope bypasses the corresponding fixed pulley block, one end of the traction steel wire rope is fixedly connected with the lifting lug on the guide buoyancy tank, and the other end of the traction steel wire rope is fixedly connected with the plurality of balancing weights.
2. The buoyancy increasing device for the front trash drainage guide buoyancy tank of the hydropower station dam as claimed in claim 1, wherein: the number of the lifting lugs is three, one of the lifting lugs is fixed on the surface of the front section of the guide floating box, the other two lifting lugs are fixed on the surface of the middle and rear sections of the guide floating box, and the three lifting lugs are fixedly arranged on the guide floating box in a triangular shape.
3. The buoyancy increasing device for the front trash drainage guide buoyancy tank of the hydropower station dam as claimed in claim 1, wherein: the number of the balancing weights is determined according to the weight of the guide buoyancy tank and the buoyancy value of the balancing weights.
4. The buoyancy increasing device for the front trash drainage guide buoyancy tank of the hydropower station dam as claimed in claim 1, wherein: the lifting lug and the guide buoyancy tank are fixed by welding, and the fixed pulley and the top plate of the support are fixed by welding.
5. The buoyancy increasing device of the trash rack and drain guide buoyancy tank in front of the hydroelectric dam as claimed in claim 1, wherein: the top of the bracket is provided with a manual balancing weight adjusting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222531917.7U CN218559118U (en) | 2022-09-25 | 2022-09-25 | Buoyancy increasing device for front trash blocking and discharging guide buoyancy tank of hydropower station dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222531917.7U CN218559118U (en) | 2022-09-25 | 2022-09-25 | Buoyancy increasing device for front trash blocking and discharging guide buoyancy tank of hydropower station dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218559118U true CN218559118U (en) | 2023-03-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222531917.7U Active CN218559118U (en) | 2022-09-25 | 2022-09-25 | Buoyancy increasing device for front trash blocking and discharging guide buoyancy tank of hydropower station dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218559118U (en) |
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2022
- 2022-09-25 CN CN202222531917.7U patent/CN218559118U/en active Active
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