CN220433802U - Water taking structure in hydraulic engineering - Google Patents

Abstract

The utility model discloses a water taking structure in hydraulic engineering, belongs to the technical field of hydraulic engineering, and can solve the problems of large occupied area and large engineering investment of the existing water taking structure engineering. The water intake structure includes: the overflow dam is arranged in the river channel, a water intake is arranged on the overflow dam, and a sand blocking bank is arranged below the water intake; the sand chute with an inclined bottom surface is arranged at the upstream of the overflow dam; the sand flushing gate is positioned at the side edge of the overflow dam; one end of the bottom surface of the sand chute, which is close to the sand flushing gate, is lower than one end of the bottom surface of the sand chute, which is far away from the sand flushing gate. The utility model is used for taking water from river channels.

Description

Water taking structure in hydraulic engineering

Technical Field

The utility model relates to a water taking structure in hydraulic engineering, and belongs to the technical field of hydraulic engineering.

Background

In hydraulic engineering, water intake structures are classified into fixed type (such as shore type, river bed type, bucket type, etc.) and movable type (such as floating ship type, cable car type, etc.) according to the construction form. The water intake is a tap of irrigation and water supply engineering, and plays a key role in engineering durability and safety. The water intake needs to prevent sediment and floaters from accumulating in front of the water inlet door, so that the influence on normal drainage is reduced; meanwhile, harmful sediment and floating dirt are prevented from entering the water diversion system to block the water passing building, so that the durability of the equipment is affected and the engineering benefit is reduced. Therefore, building structures such as a water taking gate, a water retaining dam, a flood discharging gate (hole), a sand flushing gate and the like are usually arranged at the water intake.

However, in the prior art, the arrangement modes of river channel water blocking (discharging), sand discharging and water taking buildings are independent or have a small number of functions, the engineering arrangement range is large in occupied area, the narrow and deep river channel buildings are difficult to arrange, high side slopes are formed by large excavation on two sides, land resources are wasted, engineering investment is large, and the high side slopes are easy to influence engineering operation safety.

Disclosure of Invention

The utility model provides a water taking structure in hydraulic engineering, which can solve the problems of large occupied area and large engineering investment of the existing water taking structure engineering arrangement range.

The utility model provides a water taking structure in hydraulic engineering, which comprises:

the overflow dam is arranged in the river channel, a water intake is arranged on the overflow dam, and a sand blocking bank is arranged below the water intake;

the sand chute with an inclined bottom surface is arranged at the upstream of the overflow dam;

the sand flushing gate is positioned at the side edge of the overflow dam; one end of the bottom surface of the sand chute, which is close to the sand flushing gate, is lower than one end of the bottom surface of the sand chute, which is far away from the sand flushing gate.

Optionally, the water intake is obliquely arranged, and the front end of the water intake is higher than the rear end of the water intake.

Optionally, the water intake of the overflow dam is in a fish-mouth shape.

Optionally, a trash rack is arranged at the front end of the water intake.

Optionally, a water intake runner is arranged in the overflow dam; one end of the water intake runner is communicated with the water intake, and the other end of the water intake runner penetrates out of the overflow dam to be communicated with the water delivery pipe canal.

Optionally, the method further comprises:

a sand sedimentation tank; the water intake runner is communicated with the water delivery pipe canal through the sand sedimentation tank.

Optionally, the method further comprises:

the sediment culvert is positioned at the downstream of the sediment tank; the bottom of the sand sedimentation tank is provided with a sand discharge port, and the sand discharge culvert is communicated with the sand discharge port.

Optionally, a retaining device is arranged at the downstream of the overflow dam and the sand flushing gate.

The utility model has the beneficial effects that:

(1) According to the water taking structure provided by the utility model, the sand chute is arranged at the upstream of the overflow dam, the sand flushing gate is arranged at the side edge of the overflow dam, the water flow flowing to the overflow dam is firstly subjected to sand settling in the sand chute, and the settled sand flows to the sand flushing gate through the inclined bottom surface of the sand chute, so that sediment accumulation in front of the water intake is reduced, clear water in front of the water intake is ensured, the structural arrangement occupies small area, and the engineering investment is small.

(2) According to the water taking structure, functions of a series of needed water conservancy facilities such as water taking, flood discharging, water conveying, sand discharging and the like are integrated, a novel water intake arrangement mode is adopted in the implementation process of the water conservancy projects, the problem that water taking structures in a river with a large sediment, shallow water and a narrow and deep river are limited in arrangement is solved, and the water taking structure is reasonable in arrangement and economical and effective in measure.

Drawings

FIG. 1 is a schematic cross-sectional view of a water intake structure according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a sand sedimentation tank according to an embodiment of the present utility model;

fig. 3 is a schematic top view of a water intake structure according to an embodiment of the present utility model.

List of parts and reference numerals:

11. an overflow dam; 12. a water intake; 13. a sand blocking bank; 14. a sand chute; 15. a sand flushing brake; 16. a trash rack; 17. a water intake runner; 18. a water delivery pipe channel; 19. a sand sedimentation tank; 20. sand culvert discharging; 21. a, a protection step; 22. and (3) a shore retaining wall.

Detailed Description

The present utility model is described in detail below with reference to examples, but the present utility model is not limited to these examples.

The embodiment of the utility model provides a water taking structure in hydraulic engineering, as shown in fig. 1 to 3, comprising:

the overflow dam 11 is arranged in a river channel, a water intake 12 is arranged on the overflow dam, and a sand blocking ridge 13 is arranged below the water intake 12.

The overflow dam 11 blocks water in shallow rivers and reaches the water surface, the water taking requirement is met, the weir surface overflows freely, and flood discharge is carried out together with the sand flushing gate 15 in the flood season. In practice, the overflow dam 11 is usually provided as a low dam.

A sand chute 14 having an inclined bottom surface is provided upstream of the overflow weir 11.

The sand flushing gate 15 is positioned at the side of the overflow dam 11; the end of the bottom surface of the sand chute 14 near the sand washing gate 15 is lower than the end far from the sand washing gate 15.

The sand chute 14 can play a role of inclined plate sedimentation, improves the front suspension impurity removal rate of the water intake 12, sediments sediment to the inlet of the sand washing gate 15, discharges water in flood season for sand pulling, reduces sediment accumulation elevation, and ensures that clear water is in front of the water intake 12.

The river course both sides are provided with two opposite bank retaining walls 22, and overflow dam 11 and sand flushing floodgate 15 set up side by side between two bank retaining walls 22. A guard 21 is provided downstream of the overflow weir 11 and the sand wash gate 15.

According to the utility model, the sand chute 14 is arranged at the upstream of the overflow dam 11, the sand flushing gate 15 is arranged at the side edge of the overflow dam 11, the water flowing to the overflow dam 11 is firstly deposited in the sand chute 14, and the deposited sand flows to the sand flushing gate 15 through the inclined bottom surface of the sand chute 14, so that sediment accumulation in front of the water intake is reduced, the water intake 12 is ensured to be clean water, the structural arrangement occupied area is small, and the engineering investment is small.

Further, referring to fig. 1, the intake 12 in the overflow dam 11 is in a fish-mouth shape, and is inclined, and the front end of the intake 12 is higher than the rear end thereof. The inclined arrangement of the water intake 12 can reduce the structural size of the overflow dam 11, thereby reducing the size of the whole water intake structure, so that the structure can be suitable for silt-rich rivers, shallow water, narrow and deep rivers and the like.

In the present utility model, the front end of the intake 12 is provided with a trash rack 16.

The trash rack 16 can intercept floating matters mixed in water and remove the dirt attached to the trash rack in time by a trash removing machine or a manual work.

Further, a water intake runner 17 is arranged in the overflow dam 11; one end of the water intake runner 17 is communicated with the water intake 12, and the other end passes through the overflow dam 11 to be communicated with the water delivery pipe canal 18.

Referring to fig. 2 and 3, the water intake structure further includes:

a sand sedimentation tank 19; the water intake runner 17 communicates with the water delivery pipe 18 through the sand sedimentation tank 19.

A sediment culvert 20 positioned downstream of the sediment tank 19; the bottom of the sand sedimentation tank 19 is provided with a sand discharge port, and a sand discharge culvert 20 is communicated with the sand discharge port. The sediment trap 20 may be a sediment trap.

In the embodiment of the utility model, the sand blocking ridge 13, the sand chute 14, the sand flushing gate 15, the sand sedimentation tank 19 and the sand culvert 20 jointly form a plurality of defense lines of the water taking structure, and the water taking structure is a compact arrangement type suitable for a sediment-rich river, shallow water and a narrow and deep river. The silt blocking and discharging are combined, so that water and sand can travel along the way respectively, and clean water is introduced into the water intake 12.

The fish-mouth-shaped water taking structure adopts the optimized arrangement and auxiliary sand blocking and discharging facilities to promote the separation of water and sand, and the water diversion and sand discharging are reasonable in arrangement and effective in measures. The water intake, water retaining, flood discharging and sand discharging building (construction) are combined and arranged, so that the functional fusion of a plurality of water conservancy facilities is realized, a plurality of traditional (sleeved) independent buildings are replaced, the use functions are richer, the engineering investment is efficiently reduced, the sediment accumulation is solved, and the engineering construction occupied area is saved.

The foregoing description is only a few examples of the present application and is not intended to limit the present application in any way, and although the present application is disclosed in the preferred examples, it is not intended to limit the present application, and any person skilled in the art may make some changes or modifications to the disclosed technology without departing from the scope of the technical solution of the present application, and the technical solution is equivalent to the equivalent embodiments.

Claims (8)

1. The utility model provides a water intaking structure in hydraulic engineering, its characterized in that includes:

the overflow dam is arranged in the river channel, a water intake is arranged on the overflow dam, and a sand blocking bank is arranged below the water intake;

the sand chute with an inclined bottom surface is arranged at the upstream of the overflow dam;

the sand flushing gate is positioned at the side edge of the overflow dam; one end of the bottom surface of the sand chute, which is close to the sand flushing gate, is lower than one end of the bottom surface of the sand chute, which is far away from the sand flushing gate.

2. The water intake structure according to claim 1, wherein the water intake is provided obliquely, and a front end of the water intake is higher than a rear end thereof.

3. A water intake structure according to claim 1 or 2, wherein the water intake of the overflow dam is fish-mouth shaped.

4. The water intake structure of claim 1, wherein a front end of the water intake is provided with a trash rack.

5. The water intake structure of claim 1, wherein a water intake runner is provided in the overflow dam; one end of the water intake runner is communicated with the water intake, and the other end of the water intake runner penetrates out of the overflow dam to be communicated with the water delivery pipe canal.

6. The water intake structure of claim 5, further comprising:

a sand sedimentation tank; the water intake runner is communicated with the water delivery pipe canal through the sand sedimentation tank.

7. The water intake structure of claim 6, further comprising:

the sediment culvert is positioned at the downstream of the sediment tank; the bottom of the sand sedimentation tank is provided with a sand discharge port, and the sand discharge culvert is communicated with the sand discharge port.

8. The water intake structure of claim 1, wherein a guard is provided downstream of the overflow dam and the sand washing gate.