CN210459127U - Water inlet for combining trash blocking plate with trash blocking grid to block trash - Google Patents
Water inlet for combining trash blocking plate with trash blocking grid to block trash Download PDFInfo
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- CN210459127U CN210459127U CN201921101028.9U CN201921101028U CN210459127U CN 210459127 U CN210459127 U CN 210459127U CN 201921101028 U CN201921101028 U CN 201921101028U CN 210459127 U CN210459127 U CN 210459127U
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- trash rack
- trash
- water inlet
- rack
- top elevation
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Abstract
The utility model provides a water inlet for combining a trash rack and a trash rack to block trash, which comprises a trash rack arranged at the water inlet; one end of the trash rack is connected with a trash rack, and one end of the trash rack is provided with a water inlet bottom plate; a metal sheet is embedded at the joint of the trash rack and the trash rack; the trash rack is positioned below the top elevation of the trash rack, and the trash rack is not arranged above the top elevation of the trash rack. The utility model ensures that the trash rack only needs to be arranged below the top elevation of the trash rack, thereby greatly reducing the engineering quantity of the trash rack, simultaneously reducing the scale of a trash rack door machine at the top of the water inlet, saving the investment and having great economic benefit; simple structure, beautiful structure, simplicity and practicality.
Description
Technical Field
The utility model relates to a water inlet that trash board and trash rack combine to trash belongs to water conservancy project structural design field.
Background
In large and medium hydropower station water inlet design, in order to meet the water inlet trash rack overhaul requirement, the water inlet top elevation generally needs to be set above the check flood level, and when the water inlet bottom plate elevation is lower, in order to meet the trash rack requirement at the same time, the trash rack needs to be set very high, which causes waste.
Therefore, whether a water inlet structure can be provided can reduce trash rack waste on the premise of meeting trash rack requirements and crossing the grid flow rate requirements, and becomes a key problem to be solved, and in the prior art, the shaft type pump station anti-blocking trash rack water inlet disclosed in the chinese patent with the application number of 2018213600680 is a form of a shaft type pump station water inlet trash rack device, and the application direction is a pump station water inlet, which is different from the structure of the application, and the application is applied to large and medium hydropower stations.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a trash rack and trash rack combine the water inlet of trash rack, and this trash rack and trash rack combine the water inlet of trash rack the engineering volume that has significantly reduced of trash rack, have reduced the scale of water inlet top trash rack door machine simultaneously, have saved the investment, have great economic benefits.
The utility model discloses a following technical scheme can realize.
The utility model provides a water inlet for combining a trash baffle plate and a trash rack to block trash, which comprises the trash baffle plate arranged at the water inlet; one end of the trash rack is connected with a trash rack, and one end of the trash rack is provided with a water inlet bottom plate; a metal sheet is embedded at the joint of the trash rack and the trash rack; the trash rack is positioned below the top elevation of the trash rack, and the trash rack is not arranged above the top elevation of the trash rack.
The flow velocity of the trash rack between the top elevation of the trash rack and the top elevation of the bottom plate of the water inlet is less than or equal to 1.2 m/s.
The trash baffle and the water inlet bottom plate are arranged in parallel.
The beneficial effects of the utility model reside in that: the trash rack is only required to be arranged below the top elevation of the trash rack plate, so that the engineering quantity of the trash rack is greatly reduced, the scale of a trash rack door machine at the top of the water inlet is reduced, the investment is saved, and the large economic benefit is achieved; simple structure, beautiful structure, simplicity and practicality.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure: 1-trash rack, 2-trash rack, 3-water inlet bottom plate and 4-metal sheet.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in figure 1, the water inlet for blocking sewage by combining a trash blocking plate and a trash blocking grid comprises the trash blocking plate 1 arranged at the water inlet; one end of the trash rack 1 is connected with a trash rack 2, and one end of the trash rack 2 is provided with a water inlet bottom plate 3; a metal sheet 4 is embedded at the joint of the trash rack 1 and the trash rack 2; the trash rack 2 is located below the top elevation of the trash rack 1, and the trash rack 2 is not arranged above the top elevation of the trash rack 1.
The flow velocity of the trash rack 2 between the top elevation of the trash rack 1 and the top elevation of the water inlet bottom plate 3 is less than or equal to 1.2 m/s.
The trash rack 1 and the water inlet bottom plate 3 are arranged in parallel.
The utility model discloses under the normal operating mode, the trash rack is placed below the trash rack, and rivers pass through the trash rack back from the trash rack lower part process, and the filth that is mingled with in the rivers is by the normal separation in the trash rack outside, simultaneously because arranging of trash rack for the filth in the top water also can't get into in the water inlet, thereby has guaranteed the normal trash-blocking effect of water inlet.
Specifically, under the maintenance working condition, when the trash rack needs to be lifted to the top platform of the water inlet, the metal sheet at the joint of the trash rack and the trash rack effectively ensures the damage to the trash rack caused by slight scraping and rubbing.
In summary, the utility model, except the conventional water inlet structure, ensures that the sewage is blocked outside by the sewage blocking grid of the water inlet along the water flow direction by keeping the sewage blocking grid below the top elevation of the sewage blocking plate; the arrangement of the water inlet trash rack ensures that the dirt on the top of the trash rack and above is blocked on the top by the trash rack; controlling the top elevation of the trash rack so that the average flow velocity of the trash rack passing through the grid is within the range of 0.8-1.2 m/s and meets the standard requirement; through pre-burying the metal sheet at the joint of the trash rack and the trash rack, the damage of scraping and rubbing of the trash rack when the trash rack is placed and lifted is reduced, and the trash rack is ensured to work effectively for a long time.
Claims (3)
1. The utility model provides a trash rack and trash rack combine trash rack's water inlet, is including setting up trash rack (1) in water inlet department, its characterized in that: one end of the trash rack (1) is connected with a trash rack (2), and one end of the trash rack (2) is provided with a water inlet bottom plate (3); a metal sheet (4) is embedded at the joint of the trash rack (2) and the trash rack (1); the trash rack (2) is located below the top elevation of the trash rack (1), and the trash rack (2) is not arranged above the top elevation of the trash rack (1).
2. The trash rack of claim 1 wherein the trash rack is a combination of trash rack and trash rack, further comprising: the flow velocity of the trash rack (2) between the top elevation of the trash rack (1) and the top elevation of the water inlet bottom plate (3) is less than or equal to 1.2 m/s.
3. The trash rack of claim 1 wherein the trash rack is a combination of trash rack and trash rack, further comprising: the trash baffle plate (1) and the water inlet bottom plate (3) are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921101028.9U CN210459127U (en) | 2019-07-15 | 2019-07-15 | Water inlet for combining trash blocking plate with trash blocking grid to block trash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921101028.9U CN210459127U (en) | 2019-07-15 | 2019-07-15 | Water inlet for combining trash blocking plate with trash blocking grid to block trash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210459127U true CN210459127U (en) | 2020-05-05 |
Family
ID=70445328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921101028.9U Active CN210459127U (en) | 2019-07-15 | 2019-07-15 | Water inlet for combining trash blocking plate with trash blocking grid to block trash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210459127U (en) |
-
2019
- 2019-07-15 CN CN201921101028.9U patent/CN210459127U/en active Active
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| GR01 | Patent grant | ||
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