Experimental device and experimental method for ice accumulation and transportation in front of gate under condition of free outflow of water flow

Abstract

The invention provides an experimental device and an experimental method for ice accumulation and transportation in front of a gate under the condition of free outflow of water flow. The experimentaldevice comprises a water inlet circulating system and an experimental water tank system, the experiment water tank system comprises a cuboid experiment water tank with the specification of (14-16)m*(0.4-0.6)m*(0.7-1.0)m, and an experiment water tank water inlet pipe, a water inlet energy dissipation device, a water flow energy dissipation device, a simulated ice block putting device, a water flowsection monitoring device, a gate and an experiment water tank water outlet pipe are sequentially arranged in the length direction of the experiment water tank. The experimental device is specially designed for experiments of ice accumulation and transportation in front of a gate under the condition of free outflow of water flow, and has the advantages of reasonable structure, small occupied areaand lower device and experimental cost, the experimental method is matched with the experimental device, optimization is performed on the basis of the existing experimental method, and the time for asingle experiment is shortened.

Description

technical field [0001] The invention belongs to the technical field of water conservancy and hydropower engineering, and specifically relates to an experimental device for ice accumulation and transportation in front of a sluice under the condition of free flow of water flow and an experimental method thereof, especially suitable for the condition of free flow of ice from the bottom hole of a flat gate in an open channel. The experimental device and experimental method of accumulation and transportation. Background technique [0002] The geographical distribution of my country's water resources is extremely unbalanced, 80% of which are distributed in the southwest region, and the time distribution is also quite different. The runoff of three months in the wet season can account for more than 60% of the annual runoff. In order to change the unbalanced distribution of water resources in time and space, the construction of long-distance and large-flow water diversion projects i...

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Problems solved by technology

However, the experimental device disclosed in this paper is an existing straight-walled glass water tank, and its size and length are very large (2000×50×90) cm, so it has relatively strict requirements for its test site, and because of The volume of the water tank is large, and the cost of water resources invested when starting the experiment is usually large

[0007] As for the accumulation and transport of ice under the condition of free flow from the bottom hole of the flat gate, which is common in open channel water flow, the simulation experiment device usually needs to ensure that the water flow reaches a uniform speed state before the simulated ice cubes are added, and the ice cubes and ice cubes are separated after adding. The simulation experiment is carried out under the premise of the same water flow velocity, so the existing simulation experiment equipment is mostly modified by other research projects as in the above paper, and the equipment cost, especially the site cost and the simulation experiment effect are usually not good

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