A macrobiological active pressure-holding storage device for deep-sea submersibles

Abstract

The invention provides a macro-organism active pressure maintaining storage device for a deep-sea submersible, which comprises a pressure-resistant spherical shell, the pressure-resistant spherical shell is of a spherical tank structure, an opening is formed in the top face of the pressure-resistant spherical shell, a surrounding wall is welded to the opening, and an automatic opening and closinghatch cover capable of being opened and closed is installed at the top of the surrounding wall in a matched mode. A right base is welded on the right side spherical surface of the pressure-resistant spherical shell; a pressure regulating tank assembly is welded to the outer end of the right base. A proportional pressure reducing valve is mounted between the bottom of the pressure regulating tank assembly and the pressure-resistant spherical shell; a left base is welded to the spherical surface of the left side of the pressure-resistant spherical shell, the left base and the right base are symmetrical, a water storage tank assembly is welded to the outer end of the left base, a proportional overflow valve and a manual ball valve are installed at the bottom of the water storage tank assembly, and the proportional overflow valve is communicated with the pressure-resistant spherical shell. Operation is convenient, and working reliability is good.

Description

technical field [0001] The invention relates to the technical field of pressure-maintaining storage devices for deep-sea macrobiological samples, in particular to an active pressure-maintaining storage device for macrobiological samples for deep-sea submersibles. Background technique [0002] In recent years, marine biologists have used deep-sea submersibles, such as the Jiaolong manned submersible or the cable-controlled robot (ROV), to observe marine life in real time, and to collect valuable microbial and macrobiological samples through the bow of the deep-sea submersible. The equipped manipulator performs deep-sea sampling, and collects and stores them through the sampling basket fixed on the bow tray, so as to facilitate laboratory observation, cultivation and research after landing. [0003] However, at present, the macrobiological samples collected by the deep-sea submersible are stored behind the sampling basket. With the recovery of the deep-sea submersible, the mac...

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Problems solved by technology

[0003] However, at present, the macrobiological samples collected by the deep-sea submersible are stored behind the sampling basket. With the recovery of the deep-sea submersible, the macrobiotic samples are also lifted from the deep sea to the surface mother ship. Most of them take a lot of time, usually more than several hours, and in the process of recovering the deep-sea submersible from the deep sea to the water surface, the pressure of the external seawater where the macrobiotic samples are located is also gradually decreasing. Therefore, this type of rough deep-sea sampling, due to The in-situ pressure at the collection point cannot be maintained, resulting in changes in the biological characteristics of the macrobiological samples during the transfer process, losing the in-situ characteristics of the organism, and even losing the value of laboratory observation, cultivation and research

[0004] Although there are deep-sea applications of deep-sea pressure-holding samplers in the prior art, they can only complete the pressure-holding storage of microbial samples, and cannot realize the pressure-holding storage capacity of large organisms. In addition, this type of pressure-holding sampler can only achieve passive preservation. pressure, unable to meet the pressure-holding storage requirements of deep-sea submersibles with multiple depth changes during frequent ascents and dives

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