Radial flow dividing and concentrating apparatus for water-erosion-monitored district

Abstract

The invention discloses a radial flow dividing and concentrating apparatus for a water-erosion-monitored district. The radial flow dividing and concentrating apparatus comprises a flow concentrating barrel and more than one flow dividing barrel, wherein the flow dividing barrels are successively connected in series; the head-end flow dividing barrel is connected with the concentrated radial flow of the district; and the tail-end flow dividing barrel is connected with the flow concentrating barrel. The radial flow dividing and concentrating apparatus for the water-erosion-monitored district avoids the problem of existence of blind angles in the barrels, can realize faster sampling, and is more convenient to clean since a discharge opening is reserved in the bottom; flow stabilizing grids are arranged in the flow dividing barrels so as to effectively prevent the difference of multi-hole flow division caused by instability of flow rate when rainfall is large, improve flow division stability and observation precision and guarantee uniform flow velocity of water flow, and flow division holes are consistent in pore diameters and uniformly distributed at a same level, which allows higherflow division precision to be obtained; a detachable stirring device realizes rapid and easy stirring of a sample, so sampling precision is effectively improved; and the stirring device can conveniently clean residual radial flow after observation and can exert ideal effect in cleaning.

Description

technical field [0001] The invention belongs to the technical field of soil erosion experiment devices, and in particular relates to a runoff diversion and flow collection device used in hydraulic erosion monitoring communities. Background technique [0002] Soil erosion is the main reason for the deterioration of regional ecological environment and the decline of land productivity. In order to study the impact of soil erosion on land productivity and water environment, as well as the impact of different soil and water conservation measures on soil erosion, water erosion monitoring plot observation is often an important research tools. How to accurately measure the sediment content in the diversion bucket and the collection bucket is directly related to whether the severity of soil erosion in a certain area can be correctly understood, and the technical improvement and improvement of the runoff diversion and collection devices in the hydraulic erosion monitoring area, It ha...

AI Technical Summary

Problems solved by technology

[0003] Existing diversion barrels used in hydraulic erosion monitoring communities are generally brick cement pools, the pool wall is not smooth, the wall skin of the pool wall is easy to fall off, easy to absorb water, and it is easy to freeze and crack in winter, resulting in cracks and water leakage

The shape of cube is mostly used, and there are dead angles in the process of mixing, sampling and cleaning, resulting in sediment remaining in the corners, sampling is not accurate enough, and cleaning is difficult

And the inner diameter of the shunt barrel is too large or even exceeds 2m, which brings great inconvenience to the sampling and stirring

The diversion hole on the diversion barrel is not standardized, and the size of the diversion hole is too large or too small, which is not conducive to the phenomenon of diversion; the diversion holes are not on the same horizontal line, and there is a large error in the diversion flow

There is no flow stabilization device, turbulent flow occurs in the splitter barrel, and the difference in flow velocity causes inconsistent diversion

No drain, troublesome cleaning after experiment

There is no stirring device, and wooden sticks are usually used for stirring when sampling, which is inconvenient to operate and the stirring effect is poor

[0004] The existing collecting tank is the same as the diverting tank, and most of them are brick cement pools. The pool wall is not smooth, and the wall skin of the pool wall is easy to fall off, easy to absorb water, and it is easy to freeze and crack in winter, resulting in cracks and water leakage.

Adopting a cube shape, there are dead angles in the process of stirring sampling and cleaning, resulting in sediment remaining in the corners, sampling is not accurate enough, and cleaning is difficult

The inner diameter of the splitter barrel is too large or even exceeds 2m, which brings great inconvenience to the sampling and stirring

No drain, troublesome cleaning after experiment

Images