CN203658010U - Vertical array-type sand sampler - Google Patents

Abstract

The utility model discloses a vertical array-type sand sampler, which mainly comprises a sand inlet, a sand containing box and a plurality of sand containing pipes, wherein the top end of the sand containing box s provided with an exhaust hole; the plurality of sand containing pipes are parallel to each other and closely embedded inside the sand containing box; the included angle between each sand containing pipe and the horizontal plane is 30DEG; a plurality of sand inlet channels parallel to the horizontal plane are arranged in an array type to form the sand inlet; the sand inlet channels and the sand containing pipes have the same number and are in one to one correspondence; each sand inlet channel has a height of 5mm to 20mm, a width of 5mm to 20mm and a length of 5mm to 20mm; each sand inlet channel and the corresponding sand containing pipe are connected via two baffles; the included angle between the two baffles is 5DEG to 25DEG. According to the vertical array-type sand sampler, complexity of experimental conditions is overcome, a unified platform for testing performances of the sand sampler is built, and the entire sand sampler is high in efficiency and stable as the array-type arrangement mode is adopted and a plurality of sensitive parameters of the sand sampler are optimally designed.

Description

A vertical array sand collector

technical field

The utility model relates to a device for observing wind and sand flow movement in the field, in particular to an upright array sand collecting instrument.

Background technique

Desertification has become one of the major environmental problems in the world. Desertification is a kind of desertification. Through the movement of wind and sand, wind erosion and aeolian deposits and other aeolian landforms appear on the surface, and the vertical and horizontal transportation of wind-blown sand and dust, and even long-distance transportation affect the quality of the atmospheric environment. Since the 1990s, in northern my country, sandstorms have occurred more and more frequently, and the problem of soil wind erosion has become more and more serious. The movement of sandstorms and its prevention have become a major topic of environmental research in my country. In order to effectively prevent and control sand and control soil wind erosion hazards, it is necessary to conduct wind erosion measurements in the field or in wind tunnels to accurately understand and grasp the law of wind and sand movement. The sand collector is one of the important measuring instruments for studying the law of sand movement and observing the structural characteristics of the sand flow near the surface. One of the most important indicators for evaluating the performance of the sand collector is the sand collection efficiency. In the past 20 years, most of the researches on the performance of sand collection are just experimental researches. Due to the complex and changeable experimental conditions, the results obtained by different scholars for the same type of sand collector are also very different. Therefore, the structure of the sand collector and several sensitive parameters need to be further optimized.

Utility model content

In order to solve the above technical problems, the utility model provides an upright array sand collector, which has a simple structure and is easy to install. When used in a wind tunnel, the sand collection efficiency is stable.

The purpose of the utility model is realized through the following technical solutions:

An upright array sand collection instrument, mainly including a sand inlet, a sand box and multiple sand tubes, the top of the sand box is provided with vent holes, and the multiple sand tubes are closely embedded in parallel to each other Inside the sand box, the angle between the sand pipe and the horizontal plane is 30°, and the sand inlet is composed of a number of sand inlet channels parallel to the horizontal plane arranged in an array. The height of each sand inlet channel is 5 mm ~ 20mm; the width of each sand inlet channel is 5 mm ~ 20mm; the length of each sand inlet channel is 5 mm ~ 20mm, and each sand inlet channel is connected to the corresponding The sand pipes are connected by two partitions, and there is an included angle between the two partitions.

Further, the angle between the two partitions is 5°-25°.

Further, the angle between the two partitions is preferably 15°.

Further, the height of each sand inlet channel is preferably 20mm; the width of each sand inlet channel is preferably 5 mm; the length of each sand inlet channel is preferably 5 mm.

Furthermore, the sand collector is spliced by 0.5 mm ~ 1mm stainless steel sheets.

Further, the measuring height of the sand collector is 300mm.

The utility model is an upright array sand collection instrument, which overcomes the complex and variable experimental conditions, and establishes a unified platform for testing the performance of the sand collection instrument. It adopts an array arrangement and optimizes several sensitive parameters of the sand collection instrument. The design makes the whole sand collector efficient and stable.

Description of drawings

The utility model will be described in further detail below according to the accompanying drawings and embodiments.

Fig. 1 is the structural representation of a kind of vertical array type sand collecting instrument;

Fig. 2 is the front view of a kind of vertical array sand collecting instrument;

Fig. 3 is a sectional view along A-A in the figure.

In the figure: 1-sand box; 2-sand pipe; 3-sand inlet channel; 4-partition; 5-exhaust port; 6-sand inlet; H-height of sand inlet channel; W-sand inlet The width of the channel; L-the length of the sand channel; α-the angle between the two partitions.

Detailed ways

Example 1

As shown in Figure 1-3, a kind of upright array type sand collection instrument described in the embodiment of the present invention mainly includes a sand inlet 6, a sand holding box 1 and a plurality of sand holding pipes 2, and the top of the sand holding box 1 There are exhaust holes 5, and a plurality of sand-filling pipes 2 are closely embedded in the sand box 1 in parallel with each other. The angle between the sand-filling pipes 2 and the horizontal plane is 30°. Channel 3 is arranged in an array, the number of sand inlet channel 3 is the same as that of sand holding pipe 2 and corresponds one by one, the height H of each sand inlet channel is 20 mm; the width W of each sand inlet channel is 5 mm; each sand inlet channel The length L of the sand passage is 5 mm, and each sand inlet passage 3 is connected to the corresponding sand holding pipe 2 through two partitions 4, and there is an included angle between the two partitions 4.

A preferred embodiment, the angle α between the two partitions is 15°, the sand collector is spliced by 0.7mm stainless steel sheets, since the leaping sand particles are mainly concentrated within 200mm near the surface, a sand collector is used The measuring height of the instrument is 300mm.

Example 2

The implementation of this embodiment is basically the same as in Example 1, except that the height H of each sand inlet channel is 10 mm; the width W of each sand inlet channel is 5 mm; the length L of each sand inlet channel is 5 mm; mm, the angle α between the partitions is 10°, and the sand collector is spliced by 1 mm stainless steel sheets.

Example 3

The implementation of the present embodiment is basically the same as that of Example 1, except that the height H of each sand inlet channel is 5mm; the width W of each sand inlet channel is 20mm; the length L of each sand inlet channel is 20mm, The angle α between the two partitions is 5°, and the sand collector is spliced by 0.5mm stainless steel sheets.

Example 4

The implementation mode of present embodiment and embodiment 1 is basically the same, and difference is that the height H of each sand inlet channel is 15mm; The width W of each sand inlet channel is 10mm; The length L of each sand inlet channel is 10mm, The angle α between the two partitions is 25°, and the sand collector is spliced by 0.9mm stainless steel sheets.

Example 5

The implementation of the present embodiment is basically the same as that of Example 1, except that the height H of each sand inlet channel is 20mm; the width W of each sand inlet channel is 5mm; the length L of each sand inlet channel is 5mm, The angle α between the two partitions is 14°, and the sand collector is spliced by 0.8 mm stainless steel sheets.

When the utility model is in use, H, W, L and α are optimized according to the ground conditions, a sand collector is installed according to the surface position of the sand bed, and part of the sand box is buried under the sand bed to ensure that the sand inlet is flush with the bed surface. When collecting sand, the time needs to be controlled to ensure that the sand-filling tube will not be full. After the experiment, the sand-filling box can be opened and the sand-filling tube can be taken out for measurement.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, it can still carry out the technical solutions described in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims (6)

1. An upright array type sand collection instrument, characterized in that: it mainly includes a sand inlet, a sand box and a plurality of sand tubes, the top of the sand box is provided with an exhaust hole, and the plurality of sand boxes The pipes are parallel to each other and tightly embedded in the sand box. The angle between the sand pipe and the horizontal plane is 30°. The sand inlet is composed of a number of sand inlet channels parallel to the horizontal plane. The number of sand inlet channels and sand pipes The same and one-to-one correspondence, the height of each sand inlet channel is 5 mm ~ 20mm; the width of each sand inlet channel is 5 mm ~ 20mm; the length of each sand inlet channel is 5 mm ~ 20mm, each sand inlet channel The sand passage is connected with the corresponding sand holding pipe through two partitions, and there is an included angle between the two partitions. 2. An upright array sand collector according to claim 1, characterized in that: the angle between the two partitions is 5°~25°. 3. A vertical array sand collector according to claim 2, characterized in that the angle between the two partitions is preferably 15°. 4. according to a kind of vertical array type sand collection instrument described in any one of claims 1 to 3, it is characterized in that: the height of each sand inlet channel is preferably 20mm; the width of each sand inlet channel is preferably 5 mm. mm; the length of each sand inlet channel is preferably 5 mm. 5. An upright array sand collector according to claim 4, characterized in that: the sand collector is spliced by 0.5 mm ~ 1mm stainless steel sheets. 6. A vertical array sand collector according to any one of claims 1 to 3, characterized in that: the measured height of the sand collector is 300mm.

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