Patent•
Ground-near wind and sand flow throughput instrument
23 Apr 2008-
TL;DR: In this article, the authors proposed a utility model for measuring the transmitting and moving flux of wind-sand with different heights in the ground height scale, which relates to mechanical equipment for measuring wind-sands.
Abstract: The utility model relates to mechanical equipment for measuring the transmitting and moving flux of wind-sand with different heights in the ground height scale. The ground wind-sand shifting sand flux means of the utility model comprises a box body with a front cap and a back cap, a plurality of sand dust inlets are evenly distributed in front of the box body, a sampling box is arranged at a position corresponding with each sand dust inlet in the box body, a gap is formed between two adjacent sampling boxes, a yarn net is positioned on the sampling box, a front cap is covered on the sand dust inlet, a back cap is equipped with a plurality of air outlets. When the wind-sand flows into the utility model in the field wind-sand and wind tunnel test, the sand is caught by the sampling box with different heights to further obtain the sediment transport rate and the vertical distribution, thereby providing entire data for solving wind-sand physics and providing basic data for laying down wind-sand engineering measures. At the same time, the utility model has the advantages of novel concept, simple structure, small bulk and convenient portability.
Citations
More filters
Patent•
18 Jan 2012
TL;DR: In this paper, a piston bush is arranged in a long tube and is provided with a front piston and a rear piston, a spring is arranged between the front and a positioning sleeve, a central hole is formed in the axial line of the positioning sleeve and the front piston, and a front cover with an opening is tightly hooped on the long tube.
Abstract: The invention relates to a sand grain impacting device The device is structurally characterized in that: a piston bush is arranged in a long tube and is provided with a front piston and a rear piston, a spring is arranged between the front piston and a positioning sleeve, a central hole is formed in the axial line of the positioning sleeve and the front piston, and a front cover with an opening is tightly hooped on the long tube; a spring is arranged between the rear piston and a rear plug, and a rear cover is tightly hooped on the long tube; a notch is formed on one side of the long tube, a base is arranged at the bottom of the long tube, and a pull bolt fixedly bonded on the rear piston is arranged in the notch; and a concave hole is formed at the bottoms of the long tube and the rear piston, a positioning pin is inserted into the concave hole, and the long tube is arranged on a support The sand grain impacting device has a simple structure, is convenient to assemble and disassemble, can be used for an exercise test of sand grains with the particle size of between 025 and 100 nanometer and provides a test method for researching the track motion of a single sand grain
Patent•
29 Mar 2019
TL;DR: In this article, a method for acquiring the sand horizontal moving flux in the surface layer, and relates to the technical field of stratum sand monitoring, is presented. But the method is not suitable for the acquisition of the data in a high-dimensional environment.
Abstract: The invention discloses a method for acquiring the sand horizontal moving flux in the surface layer, and relates to the technical field of stratum sand monitoring. According to the method, the numberof the sand moving in the surface layer is measured in real time, fully automatically, and continuously by a Sensit piezoelectric wind erosion sensor, so that the total number of the sand moving in the surface layer in any sampling time period can be obtained. By establishing a linear relation between the sand horizontal moving flux in the surface layer and the total number of the sand moving in the surface layer in the same time period, and utilizing the linear relation and the total number of the sand moving in the surface layer in any sampling time period, the sand horizontal moving flux inthe surface layer of any measurement time step in a certain area can be rapid estimated. Therefore, the acquisition of the sand horizontal moving flux parameter in the surface layer of a certain areais more convenient and rapid. Compared with the acquisition method in the prior art, the labor cost can be greatly reduced; the sand horizontal moving flux data in the surface layer can be acquired in a higher frequency; and the requirement for scientific research or business application is met.
Patent•
25 Sep 2020
TL;DR: In this paper, a different-height snow flux and accumulated snow density measuring device is presented, which relates to the field of snowdrift disaster prediction and prevention and control, and is useful for storing and storing snow particles.
Abstract: The invention discloses a different-height snow flux and accumulated snow density measuring device, which relates to the field of snowdrift disaster prediction and prevention and control. The device comprises a shell of which the first side is provided with a plurality of collection ports along the height direction of the shell, a plurality of collection devices, and a supporting frame. Each collection device is arranged in the shell; each collection device comprises a collecting pipe, a storage pipe and a fixing bolt; the first end of the collecting pipe is horizontally arranged; the first end of one collecting pipe is arranged in one collection port; the second end of the collecting pipe and the first end of the storage pipe are both obliquely arranged downwards, the second end of the collecting pipe and the first end of the storage pipe are detachably connected and communicate with each other, the second end of the storage pipe is arranged in a sealed mode, the fixing bolt penetrates through the shell and is fastened through a first nut, and the second end of the storage pipe is supported on the fixing bolt. The shell is detachably connected with the supporting frame, and the supporting frame is detachably connected with the ground. The measuring device is convenient to weigh the snow particles, convenient to store the snow particles and good in stability in a severe environment.