Positive pressure protection method and positive pressure protection system

Abstract

The invention relates to the technical field of ship design and construction, and discloses a positive pressure protection method and a positive pressure protection system. The positive pressure protection method is used for changing an extended explosion-proof area which can be communicated with an explosion-proof area on a ship into a closed safety area, the safety area is positive pressure, andthe explosion-proof area is negative pressure. The expansion explosion-proof area is provided with a plurality of communication structures capable of destroying the sealing performance. And the acquisition assembly detects whether the communication structure destroys the sealing performance of the extended explosion-proof area or not. And if the communication structure destroys the sealing performance of the extended explosion-proof area, the acquisition assembly sends a failure signal to the processing unit, the processing unit receives the failure signal and sends an alarm signal to the sound-light alarm unit, and the sound-light alarm unit receives the alarm signal and sends a sound alarm and a light alarm. The stress or pressure difference between the measurement explosion-proof areaand the expansion explosion-proof area is converted into whether the sealing performance of the expansion explosion-proof area is damaged or not, a high-precision pressure sensor does not need to be used or installed, so the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of ship design and construction, in particular to a positive pressure protection method and a positive pressure protection system. Background technique [0002] Both ro-ro ships and ro-ro passenger ships have areas for loading vehicles (hereafter referred to as special spaces), and the special spaces not higher than 450mm above the bulkhead deck are Class 1 explosion-proof areas. The extended explosion-proof area communicates with the type 1 explosion-proof area with openings. [0003] All electrical equipment in the extended explosion-proof area must have explosion-proof functions to meet the construction standards. Explosion-proof equipment increases the construction cost and design difficulty of ships. In order to reduce the cost, ventilation is carried out in the extended explosion-proof area to maintain a positive pressure inside, which can effectively block the entry of combustible gas and realize th...

AI Technical Summary

Problems solved by technology

[0007] An object of the present invention is to provide a positive pressure protection method to solve the problem of difficulty in pressure collection in extended explosion-proof areas and the high cost of using differential pressure dampers

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