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Large-flux bottom mud columnar sampling device and sampling method

A sampling device and high-flux technology, applied in the direction of sampling device, etc., can solve the problems of sediment fall off and loss of function, and achieve the effect of standard process, simple use method and good implementation effect.

Active Publication Date: 2018-01-09
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Abstract
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Problems solved by technology

[0007] (3) Some manufacturers are trying to increase the diameter of the sampling tube to obtain more samples, but the current samplers are all top-suction type. When the tube diameter exceeds 75mm, the negative pressure top-suction will lose its effect, resulting in Sediment falls off the bottom

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Embodiment Construction

[0063] The large-throughput bottom mud columnar sampling device and sampling method of the present invention will be described in detail below in conjunction with the accompanying drawings. Those skilled in the art should understand that the following description is only for a better understanding of the present invention, and is not intended to explain the present invention make any restrictions.

[0064] see Figure 1a -1c, the large-flux sediment columnar sampling device according to the present invention mainly includes a suspension frame 1, an upper link 2, a cavity 4, a counterweight link 6, a counterweight 7, a baffle plate 8, a latch 9, a pulley 10, Control pin rope 11, pulling board rope 12, cable 14, plumb weight 15 and sampling pipe 19.

[0065] The upper end of the suspension frame 1 is fixedly connected with the cable 14, and the cable 14 passes through the central perforation of the plumb weight 15. A cross bar 20 is fixedly arranged on the suspension frame 1, a...

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Abstract

The invention discloses a large-flux bottom mud columnar sampling device and a sampling method. The sampling device mainly comprises a suspension bracket (1), an upper connection rod (2), a cavity (4), a balance weight connection rod (6), a balance weight (7), a baffle (8), an insertion pin (9), a pulley (10), a pin control rope (11), a plate puling rope (12), a mooring rope (14), a plumb bob (15)and a sampling pipe (19). The large-flux bottom mud columnar sampling device disclosed by the invention can simultaneously realize precise layering of large-flux bottom mud samples; by the use of thelarge-flux bottom mud columnar sampling device, the shortcomings in bottom mud columnar sampling can be avoided; a technological breakthrough in the field of sample collection is realized.

Description

technical field [0001] The invention relates to the field of research and development of a lake sediment columnar sample collection device, in particular to a larger throughput sediment columnar sampling device and a method for using the same. Background technique [0002] Sediment is the "source" and "sink" of matter and energy in the basin-lake system, continuously recording information on regional and global environmental changes. The interaction of lake mud / water interface is an important factor affecting lake water quality. Under certain conditions, various pollutants accumulated in lake sediments will be re-released into the lake water body, causing secondary pollution to the water body. Therefore, how to take samples near the undisturbed mud / water interface is the key and basis for studying the mechanism of lake pollution process. [0003] At present, there are many kinds of sediment core sampling devices developed, mainly including gravity sampler, piston sampler, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/12G01N1/08
Inventor 廖海清孙福红朱元荣郭飞吴丰昌
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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