Differential trajectory jet energy dissipater in absorption basin

Abstract

The invention relates to a differential trajectory jet energy dissipater in an absorption basin, belonging to the field of engineering hydraulics. The differential trajectory jet energy dissipater comprises the absorption basin and a differential triangular flip bucket energy dissipater arranged in the absorption basin, wherein the differential triangular flip bucket divides the absorption basin into a front basin and a rear basin; and the flip position thereof can be changed in the range of one fourth to two thirds of the length of the absorption basin. The up gradient of the upstream face of the differential triangular flip bucket is incontinuous, the part with higher gradient is a main flip bucket, the part with lower gradient is a trajectory jet groove, and the downstream gradient of the differential triangular flip bucket is continuous. The differential trajectory jet energy dissipater in the absorption basin not only shortens the length of the absorption basin and contributes to the saving of construction cost, but also increases the efficiency of energy dissipation, and has the extremely high ability of anti-cavitation. The differential trajectory jet energy dissipater can be used singly in any normal absorption basin and can also be combined with other assistant energy dissipaters in the normal absorption basin.

Description

technical field [0001] The invention relates to a deflector energy dissipator in a stilling pool, in particular to a differential deflector energy dissipator in a stilling tank, which belongs to the field of engineering hydraulics. Background technique [0002] In hydraulic engineering, in some low dam spillway, spillway and gate dam and other discharge structures, due to their large outlet energy, stilling basins need to be installed at their outlets to eliminate residual energy. The so-called "energy dissipation" in hydraulics does not refer to the "elimination" of energy, but refers to the conversion of energy. The conventional stilling tank mainly uses the hydraulic jump generated in the pool to dissipate the energy of the bottom flow, that is, the bottom flow energy dissipation is to use the stilling tank to make the discharged water flow generate a hydraulic jump within the limited range of the outlet of the discharge structure, and the hydraulic jump connects the upst...

AI Technical Summary

Problems solved by technology

[0005] To sum up, conventional stilling basins of the traditional type either cannot meet the requirements of hydraulic jump formation and sufficient energy dissipation because the size of the stilling basin is too small; or because the size of the stilling basin is too large and occupies a large Moreover, its flow velocity near the bottom will also cause damage to the bottom plate of the stilling pool; therefore, the energy dissipation effect produced by the conventional stilling pool and the energy dissipators arranged in the stilling pool is not ideal or it is prone to cavitation damage. If a differential deflection energy dissipator is set in the pool, the above problems can be well solved, and this is exactly where the task of the present invention lies.

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