CN108330930A - Ecological flow hole import circular cone type integrally cast trash rack - Google Patents
Ecological flow hole import circular cone type integrally cast trash rack Download PDFInfo
- Publication number
- CN108330930A CN108330930A CN201810060056.4A CN201810060056A CN108330930A CN 108330930 A CN108330930 A CN 108330930A CN 201810060056 A CN201810060056 A CN 201810060056A CN 108330930 A CN108330930 A CN 108330930A
- Authority
- CN
- China
- Prior art keywords
- trash rack
- ecological flow
- piece casting
- flow metering
- orifice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 44
- 230000008676 import Effects 0.000 title claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000005266 casting Methods 0.000 claims description 27
- 125000004122 cyclic group Chemical group 0.000 claims description 13
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- HUPNQNOWXCVQSW-UHFFFAOYSA-N 2h-pyran-4-carboxamide Chemical compound NC(=O)C1=CCOC=C1 HUPNQNOWXCVQSW-UHFFFAOYSA-N 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
- E02B8/023—Arresting devices for waterborne materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
Abstract
The invention discloses an ecological flow hole inlet conical integrally cast trash rack, which comprises a reducing pipe or an equal-diameter pipe arranged in an ecological flow hole, wherein annular steel plates are welded at water inlets of the reducing pipe and the equal-diameter pipe, double lifting lugs uniformly distributed along the circumference are arranged on the annular steel plates, and the double lifting lugs are connected with the conical integrally cast trash rack through bolts; the cone-shaped integrally cast trash rack is of an integral structure and comprises a mandrel, triangular rib plates which are radially arranged are uniformly distributed on the periphery of the mandrel, bolt holes are formed in the edges of the triangular rib plates, and the triangular rib plates are connected through a group of annular rib plates with different diameters. The invention has the advantages of simple manufacture, uniform integral stress of the grid body, no stress concentration caused by welding, large integral structure rigidity and high strength of the trash rack, and dirt is not easy to attach to the trash rack, thereby meeting the requirements of the structural strength and the stability of the trash rack under the condition of high flow speed.
Description
Technical field
The present invention relates to a kind of ecological flow metering-orifice import pyramid type one piece casting type trash racks, belong to hydraulic and hydroelectric engineering gold
Belong to technical field of structures.
Background technology
It is needed based on environmental protection, usually ecological flow metering-orifice is arranged in dam body bottom in hydraulic and hydroelectric engineering, in ecological flow metering-orifice
Drain valve bleed downstream ecological flow is set, considers that the larger dirt of dam body bottom size can cause valve body to damage into air stream enter runner
It is bad, it can even cause sluicing runner to block sometimes and cause engineering accident, therefore, generally be arranged in ecological flow metering-orifice import fixed
Trash rack, and traditional trash rack uses welding structure, grid that the weld seam with fence frame contact site is only leaned on to fix, and is flowing
It is used in the excessively high ecological flow metering-orifice of speed, grid easily snaps off, and larger dirt is caused to enter ecological flow metering-orifice, is only suitable for low
Flow velocity occasion, so the prior art or incomplete, needs to be further improved.
Invention content
The object of the present invention is to provide a kind of ecological flow metering-orifice import pyramid type one piece casting type trash racks, to improve
Trash rack overall structure rigidity and intensity are wanted to meet the trash rack body construction strength and stability in the case of flow velocity height
It asks, and overcome the deficiencies in the prior art.
The technical proposal of the invention is realized in this way：
A kind of ecological flow metering-orifice import pyramid type one piece casting type trash rack of the present invention, including be located in ecological flow metering-orifice
Reduced pipe or equal pipe, the water inlet of reduced pipe and equal pipe is welded with cyclic annular steel plate, and cyclic annular steel plate is equipped with circumferentially
Uniformly distributed double shackle, double shackle are connect through bolt with pyramid type one piece casting type trash rack；Pyramid type one piece casting type trash rack
For overall structure, including mandrel, mandrel is uniformly distributed on peripheries with the triangle floor of radial arrangement, and triangular fin edges of boards edge is equipped with spiral shell
Keyhole, annular plate of the triangle floor through one group of different-diameter connect.
In aforementioned pyramid type one piece casting type trash rack, junction and triangle of the mandrel with triangle floor
The junction of floor and annular plate is arc transition connection.
In aforementioned pyramid type one piece casting type trash rack, the pyramid type one piece casting type trash rack downstream face is plane,
The global shape of upstream face is streamlined circular conical surface.
In aforementioned pyramid type one piece casting type trash rack, mandrel upstream end diameter is more than downstream diameter, downstream
For streamlined sphere structure.
By adopting the above-described technical solution, compared with prior art, the present invention trash rack of the present invention uses monoblock cast
Lattice pyramid type, be simple to manufacture, grid body entirety uniform force, stress concentration caused by welding, trash rack overall structure
Rigidity is big, intensity is high, meets the trash rack body construction strength and stability requirement in the case of flow velocity height, and dirt is not easy to adhere to
On trash rack, be conducive to block dirt；Grid body flow-passing surface be pyramid type, mandrel front/rear end be streamline construction, triangle floor and
Circumferential rib upstream face is circular arc streamline construction, greatly reduces flow damping, HYDRODYNAMIC CONDITION RELATING TO is good, effectively reduces trash rack
Vibration；Using the small reduced pipe in the big rear end in front end and equal pipe connection type after cyclic annular steel plate, ecological flow is increased by part
Hole flow-passing surface can reduce flow velocity, advantageously reduce the vibration of trash rack, be conducive to the high ecological flow metering-orifice of flow velocity and block dirt.
Description of the drawings
Fig. 1 is the structural schematic diagram one (reduced pipe) of the present invention；
Fig. 2 is the structural schematic diagram two (equal pipe) of the present invention；
Fig. 3 is the front view of pyramid type one piece casting type trash rack；
Fig. 4 is the A direction views of Fig. 3；
Fig. 5 is the isometric cutaway view of Fig. 3；
Fig. 6 is the structure axonometric drawing of cyclic annular steel plate；
Fig. 7 is the connection diagram of pyramid type one piece casting type trash rack and cyclic annular steel plate.
In figure：1- ecological flows metering-orifice, 2- ring-types steel plate, 3- double shackles, 4- pyramid type one piece casting types trash rack, 5- spiral shells
Bolt, 6- mandrels, 7- triangles floor, 8- annular plates, 9- streamlineds sphere, 10- streamlineds circular conical surface, 11- reduced pipes, 12-
Bolt hole, 13- equal diameters pipe, 14- circular arcs.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples, but not as to any of the present invention
Limitation.
A kind of ecological flow metering-orifice import pyramid type one piece casting type trash rack of the present invention, as shown in Fig. 1~7, including sets
The water inlet of reduced pipe 11 in ecological flow metering-orifice 1 or equal pipe 13, reduced pipe 11 and equal pipe 13 is welded with cyclic annular steel
Plate 2, cyclic annular steel plate 2 are equipped with the double shackle 3 being uniformly distributed along the circumference, and double shackle 3 is through bolt 5 and pyramid type one piece casting type trash rack
4 connections；Pyramid type one piece casting type trash rack 4 is overall structure, including mandrel 6, mandrel 6 be uniformly distributed on peripheries with radial arrangement
Triangle floor 7,7 edge of triangle floor are equipped with bolt hole 12, annular plate 8 of the triangle floor 7 through one group of different-diameter
Connection.Mandrel 6 is circular arc 14 with the junction of triangle floor 7 and triangle floor 7 and the junction of annular plate 8
Transition connects.Pyramid type one piece casting type trash rack downstream face is plane, and the global shape of upstream face is streamlined circular conical surface 10.
6 upstream end diameter of mandrel is more than downstream diameter, and downstream is 9 structure of streamlined sphere.
Embodiment one
As shown in Fig. 1 and Fig. 3~7, in the pre-buried cyclic annular steel plate 2 in 1 import front end of ecological flow metering-orifice, set on cyclic annular steel plate 2
A pyramid type one piece casting type trash rack 4 is arranged in the double shackle 3 for setting annular configuration on double shackle 3.Pyramid type one piece casting type
It is connected by bolt 5 between trash rack 4 and double shackle 3；Pyramid type one piece casting type trash rack 4 is by mandrel 6, triangle floor 7
And lattice entirety conical structure made of the casting of annular plate 8,6 rear end face of mandrel are 9 structure of streamlined sphere；Triangular fin
Circumferentially ring-type is evenly arranged plate 7；One group of annular plate 8 is arranged by close mode outside interior dredge from inside to outside；Triangle floor 7 and ring
8 upstream face of shape floor is 10 structure of streamlined circular conical surface；Ecological flow buret after cyclic annular steel plate 2 is small using the big rear end in front end
Reduced pipe 11；Reduced pipe 11 is used for the high occasion of flow velocity；The edge of triangle floor 7 is equipped with bolt hole 12；Double shackle 3 is equipped with
Bolt hole corresponding with 7 position of triangle floor 12；Mandrel 6, triangle floor 7 and 8 intersection of annular plate and cyclic annular steel plate 2
Interior hole edge is all made of the connection of 14 transient mode of circular arc.
Embodiment two
As shown in Fig. 2~7, difference of the embodiment two from embodiment one is that ecological flow buret uses equal pipe 13；Remaining
It is identical as embodiment one.
Claims (4)
1. a kind of ecological flow metering-orifice import pyramid type one piece casting type trash rack, including it is located at ecological flow metering-orifice（1）Interior reducing
Pipe（11）Or equal pipe（13）, it is characterised in that：Reduced pipe（11）And equal pipe（13）Water inlet be welded with cyclic annular steel plate
（2）, cyclic annular steel plate（2）It is equipped with the double shackle being uniformly distributed along the circumference（3）, double shackle（3）Through bolt（5）With pyramid type monoblock cast
Formula trash rack（4）Connection；Pyramid type one piece casting type trash rack（4）For overall structure, including mandrel（6）, mandrel（6）Surrounding is equal
It is furnished with the triangle floor of radial arrangement（7）, triangle floor（7）Edge is equipped with bolt hole（12）, triangle floor（7）Through
The annular plate of one group of different-diameter（8）Connection.
2. ecological flow metering-orifice import pyramid type one piece casting type trash rack according to claim 1, it is characterised in that：The core
Axis（6）With triangle floor（7）Junction and triangle floor（7）With annular plate（8）Junction be circular arc
（14）Transition connects.
3. ecological flow metering-orifice import pyramid type one piece casting type trash rack according to claim 1, it is characterised in that：The circle
Tapered one piece casting type trash rack（4）Downstream face is plane, and the global shape of upstream face is streamlined circular conical surface（10）.
4. ecological flow metering-orifice import pyramid type one piece casting type trash rack according to claim 1, it is characterised in that：The core
Axis（6）Upstream end diameter is more than downstream diameter, and downstream is streamlined sphere（9）Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810060056.4A CN108330930A (en) | 2018-01-22 | 2018-01-22 | Ecological flow hole import circular cone type integrally cast trash rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810060056.4A CN108330930A (en) | 2018-01-22 | 2018-01-22 | Ecological flow hole import circular cone type integrally cast trash rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108330930A true CN108330930A (en) | 2018-07-27 |
Family
ID=62925496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810060056.4A Withdrawn CN108330930A (en) | 2018-01-22 | 2018-01-22 | Ecological flow hole import circular cone type integrally cast trash rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108330930A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183721A (en) * | 2018-10-17 | 2019-01-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Integrally cast and formed plane sliding type trash rack |
| CN110374069A (en) * | 2019-07-15 | 2019-10-25 | 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 |
-
2018
- 2018-01-22 CN CN201810060056.4A patent/CN108330930A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183721A (en) * | 2018-10-17 | 2019-01-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Integrally cast and formed plane sliding type trash rack |
| CN110374069A (en) * | 2019-07-15 | 2019-10-25 | 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 |
| CN110374069B (en) * | 2019-07-15 | 2024-02-13 | 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 water outlet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180727 |