Temporary emergency lighting feed system for ship

Abstract

The invention discloses a temporary emergency lighting feed system for a ship. The system is externally connected with a main power supply feed network and comprises a temporary emergency power supply, a charging and discharging board, an external switch box, an emergency power supply, a first emergency distribution board, a second emergency distribution board, a third emergency distribution board, an emergency feed transformer, a plurality of emergency lighting distribution boxes and a plurality of temporary emergency lighting lamps. Compared with a traditional system, the system has the advantages that only one power supply needs to be connected, and wiring is simple and convenient. The light source of the lamp is used for emergency lighting and temporary emergency lighting. An independent incandescent bulb does not need to be arranged to serve as a temporary emergency lighting source, so that the light-emitting energy efficiency of the lamp is improved, and the maintenance cost of the lamp in the ship operation period is reduced. And meanwhile, during the transition period from the failure of the main power supply feed on the ship to the start of the emergency power supply feedand during the failure of the main power supply feed and the emergency power supply feed, the luminous flux of the lamp can be maintained in a normal state without being reduced, and the defects of the traditional system framework are greatly reduced or eliminated.

Description

technical field [0001] The invention relates to the field of low-voltage AC and DC power feeding for ship lighting, in particular to a temporary emergency lighting feeding system for ships. Background technique [0002] According to the relevant requirements of the chapter on emergency power supply for passenger ships in the Amendment to the International Convention for the Safety of Life at Sea (SOLAS), when the emergency power supply configured on a passenger ship is a generator, the generator should be equipped with a flash point (closed cup test) ) not lower than 43 ℃ fuel oil alone to drive the prime mover, in addition, it is also necessary to set up a battery pack as a temporary emergency power supply. During the transition period when the main power supply fails and automatically switches to the emergency power feed (not exceeding 45 seconds), and during the period when both the main and emergency power feeds fail, the load of the whole ship is in the absence of batte...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned traditional system architecture has been widely used in the field of temporary emergency lighting power supply for ships, but there are still the following disadvantages: the temporary emergency lighting power supply under this framework is not suitable for long-distance transmission, otherwise the voltage drop will be too large, making the temporary The emergency lighting source cannot work normally. If you want to limit the voltage drop to no more than 6%-10% of the rated voltage, you need to consider improving the path of the feeder line or increasing the conductor cross-sectional area of ​​the feeder cable, which increases the cost of the shipyard cable. Difficulty of laying and wiring and procurement cost of cables

During the transition period from the failure of the main power supply on board to the start of the emergency power supply, and during the period when both the main and emergency power supply failures occur, the main emergency lighting light source in the temporary emergency lighting fixture loses power and cannot work, and the temporary emergency lighting The light source works by emitting light. The power of the temporary emergency lighting source is small, the life is short, and the luminous efficiency is low. The illumination of the area where the light point is located will be greatly reduced, and the visual work of the personnel on board will still be affected; the power supply of the temporary emergency lighting system and the emergency lighting system are different. At present, the temporary emergency lighting distribution box and feeder line under the traditional structure are completely independent from the emergency lighting distribution box and feeder line, which not only occupies limited space on the ship, but also increases the weight of the ship and the cost of the shipyard. and construction difficulty

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