Pressure accumulation type deep sea suspension depth setting device

Abstract

A pressure accumulation type deep sea suspension depth setting device comprises a shell, and the shell is provided with a pressure transmission component and a buoyancy control structure; the pressuretransmission component comprises a sealed cavity formed in the shell, a piston is arranged in the cavity in a sliding mode, one end of the piston is fixed to the bottom of the cavity through a spring, the other end of the piston is connected with a pressure sensing unit penetrating out of the shell, the pressure sensing unit is connected with the shell in a sliding mode, and an annular groove isformed in the middle of the piston. The buoyancy control structure comprises an air bag, a high-pressure air bin and a low-pressure air bin, the high-pressure air bin is filled with high-pressure air,the air bag communicates with the middle of a cylinder sleeve, and the low-pressure air bin and the high-pressure air bin communicate with the two ends of the cylinder sleeve respectively. After thedepth position of the device is greatly changed due to the influence of marine environments such as internal waves, the device can be quickly and spontaneously adjusted to be within the preset depth range.

Description

technical field [0001] The invention belongs to the technical field of deep sea suspension depth determination, in particular to a pressure accumulating type deep sea suspension depth determination device. Background technique [0002] With the development and utilization of marine resources, various underwater unmanned detection platforms have been widely used in the fields of marine environmental investigation, marine resource development, and deep-sea biological research. Depending on the specific tasks, the detection platform is required to have different working states and locations, one of which requires the detection platform to be at a fixed depth in the ocean for long-term drifting observations. [0003] In the ocean, especially in the mixed layer area of ​​the ocean, affected by factors such as surface mixing, Langmuir circulation, ocean frontogenetic secondary circulation, ocean internal waves, and ocean mesoscale eddies, seawater turbulent mixing is strong, conve...

AI Technical Summary

Problems solved by technology

[0003] In the ocean, especially in the mixed layer area of ​​the ocean, affected by factors such as surface mixing, Langmuir circulation, ocean frontogenetic secondary circulation, ocean internal waves, and ocean mesoscale eddies, seawater turbulent mixing is strong, convection phenomena are significant, and the mechanism is complex. It poses a huge challenge to the long-term observation of the observation platform at a fixed depth

Taking ocean internal waves as an example, ocean internal waves cause large vertical fluctuations in the seawater densocline, and at the same time, the up and down flow is in a shear state, which can produce a strong shear effect on underwater devices suspended near the cline. Destroy its suspension stability, and at the same time, due to the fluctuation of the density interface, the buoyancy of the device suspended in the ocean densitron will change suddenly, causing it to drop sharply or rise suddenly, and cannot maintain a fixed depth

[0004] At present, most of the deep-sea depth determination methods are drainage methods, which are mainly used in submersibles. At the same time, energy suppliers are required to perform pumping or drainage to make submersibles sink or float. Once an emergency occurs, the crisis control system or energy supply system When , the depth control unit will not be able to be activated, and its dependence on energy supply and control system is strong

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