Air suction prevention device suitable for luxury cruise ship bilge water system

Abstract

The invention discloses an air suction prevention device suitable for a luxury cruise ship bilge water system. The device comprises a sewage well, a float switch, a bilge water branch pipe, an elasticrubber air bag, an air conveying pipeline, a control circuit and an inflating and deflating device. A liquid level sensor and a bilge water branch pipe are arranged in the sewage well; a lower port of the bilge water branch pipe is used as a water suction port; the elastic rubber air bag is arranged in the water suction port; the float switch is used for monitoring the liquid level of the sewagewell and controlling the inflation and deflation device to inflate and deflate through the control circuit, and therefore the elastic rubber air bag is controlled to expand to block the water suctionport or shrink to remove blocking. The device is simple in structure and convenient to disassemble and assemble, the rubber air bag is good in sealing performance, the self-cleaning function is achieved, automatic control can be achieved, the air suction phenomenon can be prevented in time, and safe and effective operation of a bilge water system is guaranteed.

Description

technical field [0001] The invention belongs to the field of design and application of ship auxiliary systems, and relates to a ship bilge water drainage device, in particular to an anti-air suction device suitable for a luxury cruise ship bilge water system. Background technique [0002] A giant luxury cruise ship can carry nearly 5,000 passengers, and its primary task is to ensure the safe and stable navigation of the cruise ship. Therefore, a safe and reliable bilge water system is especially important. The bilge water system can be used to pump out the bilge water of the ship (mainly domestic water, deck flushing water, rainwater, etc. on the cruise ship. The oil leakage of the main engine, auxiliary equipment and pipeline equipment is relatively small), so as to ensure the normal operation of the electromechanical equipment and The cargo is intact and the ship sails stably. In addition, when an accident occurs, the system can also discharge the bilge water overboard i...

AI Technical Summary

Problems solved by technology

The bilge water system has the following disadvantages: if the bilge water in several compartments is pumped at the same time, once the bilge water in a certain compartment is sucked dry or a valve on a pipeline leaks, the bilge water pump will be evacuated , causing the bilge water in other compartments to be unable to be pumped

However, under the premise that the large-lift bilge pump manages multiple sewage wells and continues to work, when the suction port is closed, the pressure difference between the closed area formed by the floating part and the suction pipe and the external area is relatively large, and buoyancy alone may Unable to make floating parts float up in time

Moreover, the bottom of the sewage well in the engine room or the shaft tunnel contains a lot of sand and impurities, so it is likely that a closed space cannot be formed, resulting in the failure of the anti-air suction device

Therefore, the above-mentioned device is not suitable for large luxury cruise ship bilge water treatment

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