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Sampling device

A sampling device and sampling pipe technology, which is applied to the sampling device and other directions, can solve the problems of excessive recovery load, increased difficulty in arranging cables for geological winches, and cable breakage, etc., and achieves the effect of small recovery load.

Active Publication Date: 2016-12-21
OCEAN UNIV OF CHINA
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Problems solved by technology

At present, the average depth of the world's oceans is 3070m, and the geological cables used by most survey ships are all below 10,000 meters. As the length of the cables increases, the difficulty of cable removal by geological winches increases and the maintenance costs are high. Sediment Sampling in the Deep Sea of ​​10,000 Meters
The existing sampling device is to connect the light cable to the sampling device, and then combine the geological winch and the light cable to work together to achieve the sampling depth. However, if the cable load is too large in this process, it will often lead to failure of the cable during recovery. Broken, extremely inconvenient to use
[0004] Therefore, a new type of sampling device is urgently needed to solve the above-mentioned problems such as excessive recovery load and easy breakage of cables

Method used

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Embodiment Construction

[0028] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0029] Preferred embodiment:

[0030] The preferred embodiment discloses a sampling device. Such as figure 1 As shown, the sampling device mainly samples the columnar samples of seabed sediments. The diameter of the columnar samples of sediments is about 71 mm. The sampling device includes a sampling main structure, a sampling counterweight 4, a counterweight release mechanism and a releaser mechanism. The total length of the device is about 5.5 meters, and the weight in the air is about 700Kg.

[0031] The sampling main body structure includes a sampling tube, a diverter fin 11 located outside the sampling tube, a piston 12 located inside the sampling tube, a cutter head 13 positioned at the port of the sampling tube, and a preload for preloading the sampling counterweight 4 Part 14, the samplin...

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Abstract

The invention discloses a sampling device which belongs to the technical field of bottom sediment sampling equipment, and is designed for solving the problems of ultrahigh load and easiness in cable breaking in a recycling process of a present sampling device. The sampling device provided by the invention comprises a sampling main body structure, a sampling counterweight, a counterweight releasing mechanism and a releaser mechanism, wherein the sampling main body structure is used for acquiring and accommodating a bottom sediment sample; the counterweight releasing mechanism is connected with the sampling main body structure and is used for realizing the sampling counterweight when the sampling device retracts; the releaser mechanism is arranged above the counterweight releasing mechanism and is used for acquiring more bottom sediment samples through the sampling main body structure. The sampling device provided by the invention is a throwing counterweight type device, the recycling load is small and a cable is difficult to break.

Description

technical field [0001] The invention relates to the technical field of seabed sediment sampling equipment, in particular to a sampling device. Background technique [0002] Seabed columnar sampling is the most important work in marine geological survey. Through the analysis and testing of seabed sediment columnar samples, we can understand the history of seabed sedimentation, sedimentation laws, and chemical, physical and mechanical properties of sediments, etc., and then obtain sedimentary data. The temporal and spatial variation of objects. [0003] Deep sea sampling is limited by the cable length of geological winches. At present, the average depth of the world's oceans is 3070m, and the geological cables used by most survey ships are all below 10,000 meters. As the length of the cables increases, the difficulty of cable removal by geological winches increases and the maintenance costs are high. Sediment sampling in the deep sea such as 10,000 meters. The existing samp...

Claims

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Application Information

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IPC IPC(8): G01N1/02
CPCG01N1/02
Inventor 张民生贾永刚季念迎刘晓磊
Owner OCEAN UNIV OF CHINA
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