Hydraulic pressure-triggering deep sea hot liquid air-tight sampling instrument

Abstract

The invention discloses a hydraulic pressure triggered deep sea thermal water air tight sampler comprising a sampling valve, a sampling cavity, an energy storage cavity, a circuit cavity, and a hydraulic pressure trigger mechanism in coaxial connection with the sampling valve. The sampler provided by the invention is characterized in that the sampling valve is turned on and off through hydraulic driving; the trigger mechanism has a simple structure, and the reliability of action is high; and the thrust necessary for turning on the sampling valve can be greatly reduced because the hydraulic pressure trigger mechanism is capable of amplifying force. By utilizing the compressed nitrogen in the energy storage cavity to compensate for pressure, the sampler has excellent pressure maintaining performance. The sampler is integrated with a temperature measurement system, so that the real-time temperature of the thermal water can be obtained during the process of sampling. Furthermore, the sampler with a compact overall structure and a small overall size is suitable for the operation of a manipulator of a deep submergence vehicle.

Description

technical field [0001] The invention relates to a deep-sea hydrothermal sampling device, in particular to a deep-sea hydrothermal airtight sampler which uses a hydraulic drive method to control a sampling valve. Background technique [0002] Deep-sea hydrothermal vents are one of the most prominent features of the seabed. Not only are there a large number of mineral resources such as metal sulfides in the vicinity of hydrothermal vents, but also a unique biological community in an extreme environment has been bred, which has important deep-sea resource exploration and scientific research value. . Obtaining samples is a necessary means to study deep-sea hydrothermal fluids. At present, research on deep-sea hydrothermal samplers has been carried out at home and abroad, but some of the existing samplers are not air-tight and cannot be used for quantitative analysis of gas in hydrothermal fluids. Components, while some airtight samplers use a more complex drive mechanism, which...

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Problems solved by technology

Obtaining samples is a necessary means to study deep-sea hydrothermal fluids. At present, research on deep-sea hydrothermal samplers has been carried out at home and abroad, but some of the existing samplers are not air-tight and cannot be used for quantitative analysis of gas in hydrothermal fluids. components, while some airtight samplers use more complex drive mechanisms, which increase the weight and volume of the sampler, which is not conducive to deep-sea use

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