Reservoir desilting method and device using fixing jet flow

A technology for dredging equipment and reservoirs, which is applied in earth movers/excavators, buildings, etc., can solve problems affecting reservoir functions and benefits, reducing storage capacity, etc., and achieve the effects of improving flood control and drought resistance, preventing sedimentation, and preventing reservoir siltation

Active Publication Date: 2021-07-09
NORTHWEST A & F UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide a reservoir dredging method and its device using a fixed jet to solve the problem of reservoir capacity loss due to sediment deposition and thus affect the functional benefits of the reservoir play problem

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  • Reservoir desilting method and device using fixing jet flow
  • Reservoir desilting method and device using fixing jet flow
  • Reservoir desilting method and device using fixing jet flow

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Embodiment Construction

[0034] Specific embodiments of the present invention are provided below, and it should be noted that the present invention is not limited to the following specific embodiments, and all equivalent transformations done on the basis of the technical solutions of the present application all fall within the scope of protection of the present invention.

[0035] Comply with the above technical solutions, such as Figure 1 to Figure 5 As shown, this embodiment presents a reservoir dredging method and its main device using a fixed pipeline jet, which can realize the jet erosion of the sediment at the bottom of the reservoir to fluidize it to form a high-sand concentration under the condition of high water level in the reservoir. The muddy water density flow is transported downstream to the funnel area, and finally discharged through the sand discharge tunnel 11 of the dam body.

[0036] The present invention relates to a method for desilting a jet reservoir using a fixed pipeline and ...

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Abstract

The invention discloses a reservoir desilting method and device using fixing jet flow. The device comprises a pump station, anti-clogging jet flow nozzles and the like, wherein a water inlet of the pump station is connected to a water inlet pipe, a water outlet of the pump station is connected to one end of a water outlet pipe, the other end of the water outlet pipe is connected to a water inlet of a water distribution container, a water outlet of the water distribution container is connected to a plurality of longitudinal water supply pipelines arranged on the bottom slope of the reservoir, the adjacent longitudinal water supply pipelines are connected to a plurality of transverse jet flow pipelines at intervals, a plurality of anti-clogging jet flow nozzles are arranged on each transverse jet flow pipeline, and a deposited sediment thickness monitoring device is arranged at the joint of each transverse jet flow pipeline and one of the longitudinal water supply pipelines; In the working process, after the deposited sediment thickness monitoring devices detect that the preset sediment deposition amount is formed, a water pump unit is started to operate under the high-water-level operation condition of the reservoir, surface clear water is pumped, pressurized through the water pump of the pump station, converged through the water outlet pipe and conveyed to the water distribution container in a pressed mode, and then the water is conveyed to the anti-clogging jet flow nozzles through the longitudinal water supply pipelines and the transverse jet flow pipelines to form jet flow to erode deposited silt.

Description

technical field [0001] The invention belongs to the technical field of reservoir sediment cleaning in water conservancy and environmental engineering, and in particular relates to a reservoir dredging method and a device thereof by using a fixed jet. Background technique [0002] In the face of the huge sedimentation of large and medium-sized reservoirs and the increasingly tense water resources, there is still no effective solution and mitigation method. [0003] In the prior art, dredgers, jet dredgers, and reservoir joint dispatching are usually used to clean reservoir sediment by using hyperpycnal flow and the like. In large and medium-sized reservoirs, with the high water level of the reservoir, it is difficult to clean up dredgers, and the amount of sediment deposition is large, the amount of engineering is large, and the cost is high; the application of jet dredging ships in rivers and ports shows that It is a cost-effective dredging method, but it has not been pract...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F5/28
CPCE02F5/28E02F5/287
Inventor 王玉川李长晋孙海月陈帝伊
Owner NORTHWEST A & F UNIV
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