Analysis Of Package Structure Design Of Laser Doppler Deep Sea Hydrothermal Velocity Measurement System

Submarine hydrothermal flow velocity is of great significance for the study of the output fluxes of submarine hydrothermal vents,changes in the geological structure of the seafloor,and the distribution of biological communities.The flow velocity measurement system is a necessary basic test method for the study of flow velocity,and the measurement system packaging structure as a carrier for internal components is a prerequisite for ensuring the system is safe,reliable,and convenient to work.This article starts from the design of packaging structure and system integration,Successfully solved related technical problems.This article first introduced the significance of submarine hydrothermal development and velocity observations,systematically studied the packaging technology of deep sea exploration equipment at home and abroad,and based on the study,combined the requirements of the measurement system to analyze the overall function and formulate Detailed split and integrated package designs.For the split package structure,this paper has completed the design of the pressure resistance of the pressure tank,the balance process analysis of the self-balancing tank,the design of the tank structure,the seal design of the entire split system,and the matching design of the frame and gripper.For the one-piece package structure,this paper has completed the pressure-proof design of the pressure chamber,optical window design,internal component layout design,system stability check,sealing,and the matching design of the gripper.The strength and stability of the pressure capsules of the two package structures were analyzed and verified by finite element software.Finite element simulations were performed on key parts of the integrated structure such as the optical window,and the key parts of the two package structures were tested.The stress and deformation simulations of the dive process were performed,and the maps of stress and deformation at key locations with changes in the dive depth were obtained.Simulation results show that both package designs can meet the requirements of the system package.Finite element software was used to simulate the internal cooling process of the cavity,which proved the feasibility of heat dissipation of the package structure.Finally,the design of water velocity and pressure resistance test prototypes for the prototype of the speed measurement system was completed.The water pressure and pressure resistance experiments were performed using a deep-sea environment simulation high-pressure water tank.Later,the deep-sea loading experiment was conducted on the speed measurement system,and the in-situ test and reliability of the speed measurement system was performed.On-site verification of sex.Through the research of this paper,two sets of effective package structure design schemes have been provided for the development of laser Doppler velocity measurement system,and some theoretical methods and design experience have been accumulated for the packaging technology and heat dissipation technology of related deep sea equipment.