Multi-channel underwater feeding device

Abstract

The invention belongs to the technical field of feeding devices, and discloses a multi-channel underwater feeding device. The device comprises a rotary drum base part and a motor part which are connected by a key. The feeding device has a compact structure, is high in reliability and adapts to all underwater operation depths. Compared with the traditional sealing motor, the invention has the advantages that: the difficulty of single-side rotary sealing is overcome; and when the motor is positioned in a deep-water high-pressure environment, outside pressure is transferred to inside insulating liquid by a diaphragm, and inside pressure is raised by compressing the inside insulating liquid, so that the pressure of outside water and the pressure of the inside liquid are balanced, all parts of sealing bodies are extremely high in reliability under the conditions of high absolute pressure and a small pressure difference, sealing performance and pressure resistance are improved, and a hose buckling device can automatically adjust pressing force according to a depth environment to adapt to operation environments at different depths.

Description

technical field [0001] The invention belongs to the technical field of sampling devices and relates to a multi-channel underwater sampling device. Background technique [0002] With the deepening of the development of in-situ analysis instruments on the seabed, it is often necessary to perform some complex sample switching. Traditional underwater sampling devices mostly use a normal-pressure inner cavity structure, which requires a relatively complicated sealing structure, and the depth of use is greatly limited, and the reliability is not high. In recent years, some oil-filled motors have appeared, and most of them use piston structure as their compensation device. This structure may fail when the inner wall of the compensation piston is corroded or polluted when used in deep sea, and the size of the piston needs to be adjusted as the depth changes. , otherwise it will be very bulky and not easy enough. Moreover, in the face of complex sampling timing requirements, severa...

AI Technical Summary

Problems solved by technology

Traditional underwater sampling devices mostly use a normal-pressure inner cavity structure, which requires a relatively complicated sealing structure, and the depth of use is greatly limited, and the reliability is not high

In recent years, some oil-filled motors have appeared, and most of them use piston structure as their compensation device. This structure may fail when the inner wall of the compensation piston is corroded or polluted when used in deep sea, and the size of the piston needs to be adjusted as the depth changes. , otherwise it will be very bulky and not easy enough

Moreover, in the face of complex sampling timing requirements, several or even dozens of sampling devices are often required, which greatly increases the complexity of the system structure

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