An emergency propulsion system for deep-sea equipment based on oxygen candles and its operation method

By setting up an emergency propulsion system for oxygen candles in the pressure-resistant bulkhead of deep-sea equipment, the oxygen candles are automatically ignited by seawater pressure, which solves the problem of emergency automatic floating of deep-sea equipment, and achieves safe and reliable automatic floating, reducing the negative impact on the marine environment.

CN116654223BActive Publication Date: 2025-08-29CHINA SHIP SCIENTIFIC RESEARCH CENTER +1
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Patent Information

Application Number
CN202310521807.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-09
Publication Date
2025-08-29
Estimated Expiration
2043-05-09

AI Technical Summary

Technical Problem

Existing deep-sea equipment cannot automatically float in emergency situations, and the traditional load-throwing block system is complex and may have an impact on the marine ecological environment.

Method used

An oxygen candle emergency propulsion system is installed inside the pressure-resistant bulkhead, and components such as cylinder block, plunger, positioning pin and oxygen candle medicine column are used to trigger the oxygen candle to automatically ignite through seawater pressure to generate oxygen, realizing the automatic floating of deep-sea equipment.

Benefits of technology

It realizes automatic floating of deep-sea equipment in emergency situations. The system is simple and safe, and does not require manual intervention. The oxygen is non-toxic and reduces the impact on the marine environment.

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Abstract

An emergency propulsion system and operation method for deep-sea equipment based on oxygen candles include a pressure-resistant bulkhead, an opening is provided in the middle position of the bottom of the pressure-resistant bulkhead, a plurality of steps are provided in the opening, a cylinder body is welded to the deepest step of the pressure-resistant bulkhead, a plunger is installed inside the cylinder body through a retaining ring and an O-ring, a hole is provided in the radial direction of the plunger, a locating pin passes through the hole, and at the same time, a socket corresponding to the locating pin is provided on the cylinder body, and the plunger is fixed to the cylinder body by the locating pin; four boxes are welded at the opening of the pressure bulkhead and in the circumferential direction, a hole is provided on the lower side of each box, a one-way valve is installed at the hole, an oxygen candle powder column is placed in each box, each box is connected to the plunger through an igniter, and a baffle is installed between the four boxes. At the same time, the welding of the baffle to the pressure bulkhead has high reliability and good safety, and does not require human participation, and can realize the surfacing of deep-sea equipment by autonomous decision-making.
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Citation Information

Patent Citations

  • Buoyancy adjusting system and method for medium-shallow depth submersible

    CN113184151A

  • Submarine oxygen candle oxygen supply equipment

    CN216512862U