CN110374069B - Cylindrical fixed trash rack for water inlet and water outlet - Google Patents
Cylindrical fixed trash rack for water inlet and water outlet Download PDFInfo
- Publication number
- CN110374069B CN110374069B CN201910636375.XA CN201910636375A CN110374069B CN 110374069 B CN110374069 B CN 110374069B CN 201910636375 A CN201910636375 A CN 201910636375A CN 110374069 B CN110374069 B CN 110374069B
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- Prior art keywords
- plate
- arc
- plates
- trash rack
- grid
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000005266 casting Methods 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000013016 damping Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 4
- 230000008646 thermal stress Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
- E02B5/085—Arresting devices for waterborne materials, e.g. gratings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Filtration Of Liquid (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a cylindrical fixed trash rack for a water inlet and a water outlet, which comprises an embedded steel plate embedded in the water inlet and the water outlet, wherein the embedded steel plate is welded with hanging plates uniformly distributed along the circumference; the hanging plate is provided with a group of uniformly distributed bolt holes; the hanging plate is connected with an external pulling plate on the trash rack through bolts; the trash rack is cylindrical and comprises an outer cylinder and a central body; the outer cylinder is connected with the central body through a group of radial grid plates; the radial grid plates are connected through a group of arc grid plates with different radians to form a group of concentric circle grid plates. The two-way overflow of the trash rack has the advantages that no influence of the rack grooves is caused when the trash rack passes through the trash rack in a two-way manner, the flow state of water is good, the center overflow casting body and the two sides of the water inlet and outlet of the grid plate are of round head structures, the damping is small, the influence of water flow on the grid plate when the water passes through the trash rack is reduced, the vibration of the grid plate is small, the main parts of the trash rack are connected through bolts, the vibration resistance is good, and the service life of the trash rack is effectively prolonged.
Description
Technical Field
The invention relates to a cylindrical fixed trash rack for a water inlet and a water outlet, and belongs to the technical field of metal structures of hydraulic and hydroelectric engineering.
Background
For a drain grating of a water inlet and a water outlet of a pumped storage power station, a drain grating groove is generally arranged in the prior art, and the drain grating is fixed on the drain grating groove through a sliding block or a wedge block; in addition, the trash rack adopts a frame structure, the frame cross beams and the vertical beams are of I-shaped cross sections, the damping is large, the two-way overflow of the trash rack and the large flow velocity are caused, and the local mutation of the flow passage of the water inlet and the water outlet is caused by the grid grooves, so that the flow state of the water flow of the water inlet and the water outlet is complex and changeable when passing through the trash rack, the vibration of the grid plates is easy to be induced, and the damage of the grid plates is caused, so that the prior art is still not perfect and needs to be further improved.
Disclosure of Invention
The invention aims to provide a cylindrical fixed trash rack for a water inlet and a water outlet, which aims to solve the defects in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention relates to a cylindrical fixed trash rack for a water inlet and a water outlet, which comprises an embedded steel plate embedded at the water inlet and the water outlet, wherein the embedded steel plate is welded with hanging plates uniformly distributed along the circumference; the hanging plate is provided with a group of uniformly distributed bolt holes; the hanging plate is connected with an external pulling plate on the trash rack through bolts; the trash rack is cylindrical and comprises an outer cylinder and a central body; the outer cylinder is connected with the central body through a group of radial grid plates; the radial grid plates are connected through a group of arc grid plates with different radians to form a group of concentric circle grid plates.
In the cylindrical fixed trash rack, the central body is a cylinder formed by casting at one time, and two ends of the cylinder are spherical surfaces; double connecting ribs are uniformly distributed around the aspheric sections at the two ends of the cylinder; the double connecting ribs are provided with bolt holes for fixing the radial grid plates.
In the cylindrical fixed trash rack, the outer cylinder is a cylinder formed by rolling a steel plate; an annular bottom plate is welded at one end of the outer cylinder, outer pull plates uniformly distributed along the circumference are welded at the outer circle of the outer cylinder, and bolt holes corresponding to the hanging plates are formed in the outer pull plates; an inner double pulling plate uniformly distributed along the circumference is welded on the inner circle of the outer cylinder; the positions and the number of the inner double pull plates correspond to the double connecting ribs on the central body; the inner double pull plate is provided with a group of bolt holes for connecting the radial grid plates.
In the cylindrical fixed trash rack, the radial grid plate is a rectangular steel plate, and the upper end of the radial grid plate is provided with a group of bolt holes corresponding to the inner double pull plates; the lower end of the radial grid plate is provided with a group of bolt holes corresponding to the double connecting ribs; an upper arc-shaped connecting seat plate connected with the arc-shaped grid plate is arranged on one side of the radial grid plate; a lower arc-shaped connecting seat plate connected with the arc-shaped grid plate is arranged on the other side of the radial grid plate; the upper arc-shaped connecting seat plates and the lower arc-shaped connecting seat plates are arranged in a staggered manner; bolt holes for connecting the arc grid plates are formed in the upper arc connecting seat plate and the lower arc connecting seat plate.
In the cylindrical fixed trash rack, the arc-shaped grid plates are rectangular arc-shaped steel plates; the left side and the right side of the arc-shaped grid plate are respectively provided with bolt holes connected with the upper arc-shaped connecting seat plate or the lower arc-shaped connecting seat plate; one side of the arc-shaped grid plate is connected with the bottom surface of the upper arc-shaped connecting seat plate, and the other side of the arc-shaped grid plate is connected with the top surface of the lower arc-shaped connecting seat plate; both ends of the arc grid plate are arc surfaces.
In the cylindrical fixed trash rack, all edges and corners of the trash rack are rounded arc surfaces.
Due to the adoption of the technical scheme, compared with the prior art, the trash rack is arranged at the side of the water inlet and outlet reservoir and is of a cylindrical fixed structure, the trash rack has no influence of a rack groove when in bidirectional overflow, the flow state of water flow is good, the central overflow casting body and the water inlet and outlet sides of the grid plate are of round head structures, the damping is small, the influence on the grid plate when water flows through the trash rack is reduced, the vibration of the grid plate is small, the main parts of the trash rack are connected by bolts, the vibration resistance is good, and the service life of the trash rack is effectively prolonged; in addition, radial double-round-head grid plates are provided with an upper arc-shaped connecting base plate and a lower arc-shaped connecting base plate structure of the staggered platform, so that the influence of thermal stress during welding of the grid plates is reduced, and the welding quality of the grid plates is effectively improved.
Drawings
FIG. 1 is a schematic general construction of the present invention;
fig. 2 is a schematic structural view of a trash rack;
FIG. 3 is a schematic structural view of the central body;
FIG. 4 is a schematic structural view of the outer tub;
FIG. 5 is a schematic view of the structure of a radial grid;
fig. 6 is a schematic view of the structure of the arc-shaped louver.
The marks in the drawings are: 1-water inlet and outlet, 2-trash rack, 3-bolt, 4-hanger plate, 5-bolt hole, 6-radial grid plate, 7-arc grid plate, 8-central body, 9-outer cylinder, 10-annular bottom plate, 11-outer pulling plate, 12-inner double pulling plate, 13-pre-buried steel plate, 14-upper arc connecting seat plate, 15-lower arc connecting seat plate, 16-arc surface, 17-double connecting rib and 18-spherical surface.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
The invention relates to a cylindrical fixed trash rack for a water inlet and a water outlet, which is shown in fig. 1 and 2, and comprises a pre-buried steel plate 13 pre-buried at the water inlet and the water outlet 1, wherein the pre-buried steel plate 13 is welded with hanging plates 4 uniformly distributed along the circumference; the hanger plate 4 is provided with a group of uniformly distributed bolt holes 5; the hanging plate 4 is connected with an outer pulling plate 11 on the trash rack 2 through bolts 3; the trash rack 2 is cylindrical and comprises an outer cylinder 9 and a central body 8; the outer cylinder 9 is connected with the central body 8 through a group of radial grid plates 6; the radial grid plates 6 and the radial grid plates 6 are connected through a group of arc-shaped grid plates 7 with different radians to form a group of concentric circle grid plates. As shown in fig. 3, the central body 8 is a cylinder formed by casting once, and two ends of the cylinder are spherical surfaces 18; double connecting ribs 17 are uniformly distributed around the aspheric sections at the two ends of the cylinder; the double connecting ribs 17 are provided with bolt holes 5 for fixing the radial grids 6. As shown in fig. 4, the outer tube 9 is a cylinder formed by rolling a steel plate; an annular bottom plate 10 is welded at one end of the outer cylinder 9, outer pull plates 11 uniformly distributed along the circumference are welded at the outer circle of the outer cylinder 9, and bolt holes 5 corresponding to the hanging plates 4 are formed in the outer pull plates 11; an inner circle of the outer cylinder 9 is welded with inner double pull plates 12 uniformly distributed along the circumference; the positions and the number of the inner double pull plates 12 correspond to the double connecting ribs 17 on the central body 8; the inner double pulling plate 12 is provided with a set of bolt holes 5 for connecting the radial grid plates 6. As shown in fig. 5, the radial grid plate 6 is a rectangular steel plate, and the upper end of the radial grid plate 6 is provided with a group of bolt holes 5 corresponding to the inner double pull plates 12; the lower end of the radial grid plate 6 is provided with a group of bolt holes 5 corresponding to the double connecting ribs 17; an upper arc-shaped connecting seat plate 14 connected with the arc-shaped grid plate 7 is arranged on one side of the radial grid plate 6; the other side of the radial grid plate 6 is provided with a lower arc-shaped connecting seat plate 15 connected with the arc-shaped grid plate 7; the upper arc-shaped connecting seat plates 14 and the lower arc-shaped connecting seat plates 15 are arranged in a staggered manner; bolt holes 5 for connecting the arc-shaped grid plates 7 are arranged on the upper arc-shaped connecting seat plate 14 and the lower arc-shaped connecting seat plate 15. As shown in fig. 6, the arc-shaped grid plate 7 is a rectangular arc-shaped steel plate; the left and right sides of the arc grid plate 7 are respectively provided with bolt holes 5 connected with an upper arc connecting seat plate 14 or a lower arc connecting seat plate 15; one side of the arc-shaped grid plate 7 is connected with the bottom surface of the upper arc-shaped connecting seat plate 14, and the other side of the arc-shaped grid plate 7 is connected with the top surface of the lower arc-shaped connecting seat plate 15; both ends of the arc grid plate 7 are arc surfaces 16. All edges and corners of the trash rack 2 are rounded arc surfaces 16.
Examples
As shown in fig. 1 and 2, the trash rack 2 of the embodiment adopts a cylindrical structure with an outer annular pull plate 11 and is fixed on a hanging plate 4 with an annular water inlet and outlet 1 through the outer pull plate 11 by bolts 3; the inside of the cylindrical structure of the trash rack 2 is provided with a central body 8, and two ends of the central body 8 are spherical structures. The central body 8 and the outer cylinder 9 are connected into a whole through the annular radial grid plates 6 by bolts 3, concentric arc grid plates 7 are arranged between the adjacent radial grid plates 6, and the arc grid plates 7 are connected and fixed with the upper arc connecting base plate 14 and the lower arc connecting base plate 15 of the radial grid plates 6 through bolts 3 after being staggered and overlapped.
The trash rack 2 is arranged on the reservoir side of the water inlet and outlet 1, no grid groove is caused when the trash rack 2 flows in two directions, the flow state of water is good, the two ends of the central body 8 are in spherical structures, the damping is small, the influence of water flowing through the trash rack 2 on grid plates is reduced, the vibration of the grid plates is small, the main parts of the trash rack are connected through bolts, the vibration resistance is good, and the service life of the trash rack is effectively prolonged; in addition, the upper arc-shaped connecting seat plates 14 and the lower arc-shaped connecting seat plates 15 of the staggered tables are arranged on the radial grid plates, so that the influence of thermal stress during welding of the grid plates can be reduced, and the welding quality of the grid plates can be effectively improved.
In specific implementation, as shown in fig. 1 and 2, a trash rack 2 is arranged at a water inlet and outlet 1, and the trash rack 2 adopts a cylindrical fixing mode. The trash rack 2 is connected with a hanger plate 4 which is annularly arranged at the water inlet and outlet 1 through bolts 3; the trash rack 2 is formed by connecting an outer cylinder 9, a radial grid plate 6, an arc grid plate 7 and a central body 8 into a whole through bolts 3; an annular bottom plate 10 is welded at one end of the outer cylinder 9, outer pulling plates 11 uniformly distributed along the circumference are arranged on the outer circle of the outer cylinder 9, and inner double pulling plates 12 uniformly distributed along the circumference are arranged on the inner circle of the outer cylinder 9; the outer pull plate 11 and the inner double pull plate 12 are welded with the outer cylinder 9 into a whole; the upper arc-shaped connecting seat plates 14 and the lower arc-shaped connecting seat plates 15 which are concentrically arranged at the two sides of the radial grid plate 6 are welded into a whole; the periphery of the central body 8 is provided with double connecting ribs 17 uniformly distributed along the circumference; the left and right ends of the radial grid plate 6 are respectively embedded into the inner double-pull plate 12 and the double-connecting rib 17 and are fixedly connected through the bolts 3; the arc grid plate 7 is fixedly connected with the upper arc connecting seat plate 14 and the lower arc connecting seat plate 15 through bolts 3 after being overlapped; the front side and the rear side of the radial grid plate 6, the arc grid plate 7 and the central body 8 are rounded to form an arc surface 16; the outer pulling plate 11 is fixedly connected with the hanging plate 4 through bolts 3; the hanger plate 4 is welded and fixed on the annular turnup of the embedded steel plate 13.
Claims (2)
1. The utility model provides a fixed trash rack of inlet outlet drum formula, includes pre-buried steel sheet (13) of pre-buried in inlet outlet (1), its characterized in that: hanging plates (4) uniformly distributed along the circumference are welded on the embedded steel plates (13); a group of uniformly distributed bolt holes (5) are arranged on the hanging plate (4); the hanging plate (4) is connected with an external pulling plate (11) on the trash rack (2) through bolts (3); the trash rack (2) is cylindrical and comprises an outer cylinder (9) and a central body (8); the outer cylinder (9) is connected with the central body (8) through a group of radial grid plates (6); the radial grid plates (6) are connected with each other through a group of arc grid plates (7) with different radians to form a group of concentric circle grid plates; the central body (8) is a cylinder formed by casting at one time, and two ends of the cylinder are spherical surfaces (18); double connecting ribs (17) are uniformly distributed around the aspheric sections at the two ends of the cylinder; the double connecting ribs (17) are provided with bolt holes (5) for fixing the radial grid plates (6); the outer cylinder (9) is a cylinder formed by rolling a steel plate; an annular bottom plate (10) is welded at one end of the outer cylinder (9), outer pull plates (11) uniformly distributed along the circumference are welded on the outer circle of the outer cylinder (9), and bolt holes (5) corresponding to the hanging plates (4) are formed in the outer pull plates (11); an inner circle of the outer cylinder (9) is welded with inner double pull plates (12) which are uniformly distributed along the circumference; the positions and the number of the inner double pull plates (12) are corresponding to the double connecting ribs (17) on the central body (8); the inner double pull plate (12) is provided with a group of bolt holes (5) for connecting the radial grid plates (6); the radial grid plate (6) is a rectangular steel plate, and the upper end of the radial grid plate (6) is provided with a group of bolt holes (5) corresponding to the inner double pull plates (12); the lower end of the radial grid plate (6) is provided with a group of bolt holes (5) corresponding to the double connecting ribs (17); an upper arc-shaped connecting seat plate (14) connected with the arc-shaped grid plate (7) is arranged on one side of the radial grid plate (6); a lower arc-shaped connecting seat plate (15) connected with the arc-shaped grid plate (7) is arranged on the other side of the radial grid plate (6); the upper arc-shaped connecting seat plates (14) and the lower arc-shaped connecting seat plates (15) are arranged in a staggered manner; bolt holes (5) for connecting the arc-shaped grid plates (7) are formed in the upper arc-shaped connecting seat plate (14) and the lower arc-shaped connecting seat plate (15); the arc grid plate (7) is a rectangular arc-surface steel plate; the left side and the right side of the arc grid plate (7) are respectively provided with bolt holes (5) connected with an upper arc connecting seat plate (14) or a lower arc connecting seat plate (15); one side of the arc-shaped grid plate (7) is connected with the bottom surface of the upper arc-shaped connecting seat plate (14), and the other side of the arc-shaped grid plate (7) is connected with the top surface of the lower arc-shaped connecting seat plate (15); both ends of the arc grid plate (7) are arc surfaces (16).
2. The water inlet and outlet cylindrical fixed trash rack of claim 1, wherein: all edges and corners of the trash rack (2) are rounded arc surfaces (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910636375.XA CN110374069B (en) | 2019-07-15 | 2019-07-15 | Cylindrical fixed trash rack for water inlet and water outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910636375.XA CN110374069B (en) | 2019-07-15 | 2019-07-15 | Cylindrical fixed trash rack for water inlet and water outlet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110374069A CN110374069A (en) | 2019-10-25 |
| CN110374069B true CN110374069B (en) | 2024-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910636375.XA Active CN110374069B (en) | 2019-07-15 | 2019-07-15 | Cylindrical fixed trash rack for water inlet and water outlet |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11350451A (en) * | 1998-06-05 | 1999-12-21 | Sumitomo Metal Ind Ltd | Hybrid steel plate cell structure |
| CN107794885A (en) * | 2017-11-03 | 2018-03-13 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological water intake conical trash rack |
| CN207452846U (en) * | 2017-11-03 | 2018-06-05 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological water intake conical trash rack |
| CN108330930A (en) * | 2018-01-22 | 2018-07-27 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological flow hole import circular cone type integrally cast trash rack |
| CN208266826U (en) * | 2018-01-22 | 2018-12-21 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological flow hole import circular cone type integrally cast trash rack |
| CN210507345U (en) * | 2019-07-15 | 2020-05-12 | 中国电建集团贵阳勘测设计研究院有限公司 | Cylindrical fixed trash rack for water inlet and outlet |
-
2019
- 2019-07-15 CN CN201910636375.XA patent/CN110374069B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11350451A (en) * | 1998-06-05 | 1999-12-21 | Sumitomo Metal Ind Ltd | Hybrid steel plate cell structure |
| CN107794885A (en) * | 2017-11-03 | 2018-03-13 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological water intake conical trash rack |
| CN207452846U (en) * | 2017-11-03 | 2018-06-05 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological water intake conical trash rack |
| CN108330930A (en) * | 2018-01-22 | 2018-07-27 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological flow hole import circular cone type integrally cast trash rack |
| CN208266826U (en) * | 2018-01-22 | 2018-12-21 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological flow hole import circular cone type integrally cast trash rack |
| CN210507345U (en) * | 2019-07-15 | 2020-05-12 | 中国电建集团贵阳勘测设计研究院有限公司 | Cylindrical fixed trash rack for water inlet and outlet |
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| Publication number | Publication date |
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| CN110374069A (en) | 2019-10-25 |
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