Pneumatic deepwater bottom mud sampling device

A sampling device and a pneumatic technology, which are applied in the field of pneumatic deep-water sediment sampling devices, can solve the problems such as the inability to meet the needs of the detection of > 20kg large samples, the difficulty in collecting the floating mud in the fluid state, and the error of the sample detection, and achieve a simple structure, High work efficiency and accurate positioning and depth

Pending Publication Date: 2018-03-23
天津海辰华环保科技股份有限公司
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Problems solved by technology

[0002] As we all know, at present, there are mainly two types of sediment samplers used in lake and reservoir ecological dredging projects and dredging restoration projects: the grab type and the column type, both of which are difficult to collect fluid floating mud, and the grab type The grab-and-column-type seals are mechanically op

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  • Pneumatic deepwater bottom mud sampling device
  • Pneumatic deepwater bottom mud sampling device
  • Pneumatic deepwater bottom mud sampling device

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Embodiment Construction

[0014] In order to further understand the invention content, characteristics and effects of the present invention, the following embodiments are cited hereby, and detailed descriptions are as follows in conjunction with the accompanying drawings, please refer to figure 1 — image 3 .

[0015] Such as figure 1 As shown: the shell 1 is composed of a 400mm cylinder and two ends of the cylinder respectively welded 300-400mm, one big at one end and a small at the other end to form the shell 1 of an elliptical sampling device with a large middle and two small ends. The lower end of the shell 1 is fixed with a lower Bottom plate 2, the central opening of lower bottom plate 2 is used as sampling port 3, and the radian of its sampling port 3 coincides with the radian of sphere 4, and the opening diameter of sampling port 3 lower end is 200mm, and the material that described spheroid 4 adopts is nylon, and its The specific gravity is about 2.0 times that of water. The diameter of the ...

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Abstract

The invention relates to a pneumatic deep-water bottom mud sampling device. A shell is composed of a cylinder and a cylinder with one large end and a small cylinder connected at both ends to form an elliptical cylinder with a large one and a small one in the middle. The lower end of the casing is fixed with a lower bottom plate. The middle opening of the casing is used as the sampling port. The sphere floats in the casing and is in contact with the sampling port. The radian of the sampling port is the same as the radian of the sphere. The upper end of the casing is fixed with an upper cover, on which is fixed the intake and exhaust pipes and the air compressor. Connected to the shell to feed and exhaust high-pressure gas, a hanger welded on the upper cover is connected to the hoist on the working boat through a cable, and a cross bar is welded in the shell to control the height of the ball. A balance board is used to keep the sampling device in a vertical state during the suspension process. The advantages are: simple structure, accurate positioning and depth determination, no disturbance of sampling sediment, one sampling amount, accurate detection and high work efficiency.

Description

technical field [0001] The invention relates to a pneumatic deep-water sediment sampling device, in particular to an air-pressure deep-water sediment sampling device which does not disturb the sampling sediment, has large sampling volume at one time, high benefit and accurate positioning and depth determination. Background technique [0002] As we all know, at present, there are mainly two types of sediment samplers used in lake and reservoir ecological dredging projects and dredging restoration projects: the grab type and the column type, both of which are difficult to collect fluid floating mud, and the grab type The grab-and-column-type seals are both mechanically operated, so the mud in the peristaltic state is disturbed. In addition, whether it is a grab-and-hold sampler or a column-type sampler, the sampling volume at a time is usually less than 2kg, which cannot meet the needs of large sample testing > 20kg, and multiple sampling, not the same sample, resulting in ...

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Application Information

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IPC IPC(8): G01N1/14
CPCG01N1/14G01N2001/1025G01N2001/1418
Inventor 章大初林涛李可训
Owner 天津海辰华环保科技股份有限公司
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