Deep-sea integrated energy-accumulator pressure-maintaining sampler mechanism

Abstract

The invention relates to a deep-sea integrated energy-accumulator pressure-maintaining sampler mechanism. The mechanism comprises sampling valves, gas cutoff valves, a piston, an O-shaped sealing ring, a hydraulic plug, a stopper, a throttling port, an energy accumulation chamber and a sampling chamber, wherein the sampling valves are separately mounted at the two sides of the sampling chamber, the circumferential throttling port is formed in the chamber wall of the sampling chamber, a part, directly facing to external wall, of the throttling port is sealed through the hydraulic plug, the energy accumulation chamber is pre-charged with high-pressure nitrogen gas through the gas cutoff valve at one side, the piston is arranged at the upper end of the energy accumulation chamber, and the stopper is mounted at the upper end of the piston so as to limit displacement. According to the mechanism, an energy accumulator and a sampling tube adopt an integrated structure, so that the structure is compact, the size is small, the energy accumulator can be used for carrying out pressure compensation on the sampling tube, and thus an effective pressure maintaining effect is achieved.

Description

technical field [0001] The invention relates to a pressure-holding technology for a sampler, in particular to a pressure-holding sampler mechanism for a deep-sea integrated accumulator. Background technique [0002] The 21st century is the century of human development and utilization of the ocean. It is a very effective way to detect the distribution of natural resources such as minerals and natural gas by obtaining deep-sea seawater samples. Therefore, a large number of sampling equipment has been developed rapidly. In order to obtain a sample closer to the in-situ liquid pressure in seawater, it is often necessary to add a lot of pressure-holding system components and accessories, which makes the structure of the sampler more complicated and very bulky. [0003] In order to further meet the requirements of the pressure holding capacity and structure simplification of the sampler, it is necessary to further develop a new sampler device. Contents of the invention [0004]...

AI Technical Summary

Problems solved by technology

[0002] The 21st century is the century of human development and utilization of the ocean. It is a very effective way to detect the distribution of natural resources such as minerals and natural gas by obtaining deep-sea seawater samples. Therefore, a large number of sampling equipment has been developed rapidly. In order to obtain samples closer to the in-situ liquid pressure in seawater, it is often necessary to add a lot of pressure-holding system components and accessories, which makes the structure of the sampler more complex and cumbersome

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