Ice core drilling device

Abstract

The invention discloses an ice core drilling device. The ice core drilling device comprises an ice core barrel, a drilling mechanism and a control center, wherein the drilling mechanism is fixed on the bottom end side surface of the ice core barrel and comprises a drilling mechanism body, an electric heating wire and a heating head, the heating head is in sealing communication with the bottom end of the drilling mechanism body through multiple electric joints; the drilling mechanism body is circular and hollow inside, a sealing cover is arranged at the top of the drilling mechanism body, the heating head is annular, has an inverted-triangular section and is hollow inside, the inside of the connection position of the drilling mechanism body and the heating head is wound with the electric heating wire, and the electric heating wire and the electric joints are electrically connected with the control center. An ice core is sampled in an electric heating form, damage of mechanical drilling to the ice core is avoided, and the smoothness and the flatness of an ice core sample can be guaranteed; the direction of a drilling head is adjusted by means of the arranged electric joints, the section in preset depth is heated, and the ice core sample and an original ice layer are conveniently separated.

Description

technical field [0001] The invention relates to a drilling device, in particular to an ice core drilling device. Background technique [0002] According to the physical and chemical properties of snow and ice in different layers, ice cores can more accurately present the history of climate and environmental changes. Therefore, drilling high-quality ice core samples will help advance the research progress of global environmental changes. [0003] Existing ice core drilling devices mostly use mechanical drilling, on the one hand, it is easy to cause damage to the ice layer, and on the other hand, it is easy to cause the surface of the sampling ice core to be rough and uneven, which affects the research results. Moreover, after the existing ice core drilling device reaches the depth of the ice core, it is difficult to separate the bottom of the ice core sample from the original frozen layer, and it is easy to break the ice core during the separation process; the above problems ...

AI Technical Summary

Problems solved by technology

[0003] Existing ice core drilling devices mostly use mechanical drilling, on the one hand, it is easy to cause damage to the ice layer, on the other hand, it is easy to cause the surface of the sampling ice core to be rough and uneven, which affects the research results

Moreover, after the existing ice core drilling device reaches the depth of the ice core, it is difficult to separate the bottom of the ice core sample from the original frozen layer, and it is easy to break the ice core during the separation process; the above problems exist in the polar regions. Ice core sampling in cold regions is more prone to failure

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