Underwater vehicle-mounted deep-sea sediment sampler

Abstract

The invention belongs to the field of deep sea geological exploration, and specifically relates to an underwater vehicle-mounted deep-sea sediment sampler. The underwater vehicle-mounted deep-sea sediment sampler comprises an elastic contraction sealing tube, a lower heat flow value sensor, a closing pressure plate, a sampling outer cylinder, a sampling inner cylinder, an upper heat flow value sensor, a water supply valve and the like. The underwater vehicle-mounted deep-sea sediment sampler utilizes an elastic tube to realize post-sampling sealing, is equipped with mechanical locking, and realizes secondary sampling by using a locking and unlocking mechanism. The underwater vehicle-mounted deep-sea sediment sampler utilizes a closed sample storage space to reduce sample loss and disturbance, and uses a secondary sampling function to greatly improve the efficiency of obtaining an effective sample, completely preserve the in-situ seawater sample at a specific position and the undisturbed in-situ sediment sample, acquire the in-situ heat flow values of the surface sediments in real time, and provide in-situ seawater and sediment samples for later studies in biology, chemistry, and geology.

Description

technical field [0001] The patent of the invention belongs to the field of deep-sea geological exploration, and specifically relates to a deep-sea sediment sampler mounted on an underwater vehicle. Background technique [0002] The structure of the sediment sampler carried by the existing submersible is relatively simple. After the submersible reaches the deep sea sampling point, it uses the manipulator to grab the sampler and insert it directly into the sediment. After the sample is obtained, it is placed in the sample box to complete the sampling. However, when the sampler is inserted into the sediment and lifted up, the sediment inside the sampler is easy to fall off (if it is sand, it is especially easy to fall off), and during the ascent of the submersible, if the seal is not good, it is easy to Washed by seawater, it is difficult to maintain the integrity of the sample, and it is difficult not to be disturbed. At the same time, the seawater samples at the sampling loc...

AI Technical Summary

Problems solved by technology

However, when the sampler is inserted into the sediment and lifted up, the sediment inside the sampler is easy to fall off (if it is sand, it is especially easy to fall off), and during the ascent of the submersible, if the seal is not good, it is easy to Washed by seawater, it is difficult to maintain the integrity of the sample, it is difficult not to be disturbed

At the same time, the seawater samples at the sampling location cannot be saved, and there is no secondary sampling capability

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