Large amphibious aircraft hull watertight detection system and method

Abstract

The invention belongs to the field of amphibious aircraft hull watertight detection process methods, and particularly relates to a large amphibious aircraft hull watertight detection system and method. The watertight detection system comprises a water pool (3), a water pump (4), a leakage detection disc (5), a vent valve (8), a pressure gauge (7), a manual adjustment type overflow valve (6) and awater pipe (9). By means of the detection system and method, leakage points can be rapidly detected. The method is a positive-pressure watertight detection method, the detection pressure is adjustable, and the stress condition of an airplane during underwater gliding can be actually and truly restored. The detection system device is simple in structure, small in size, easy to manufacture, very convenient and flexible to use when used for outfield overwater test flight and easy to produce and apply, an airplane manufacturer can deliver the detection system device to a client as a random tool, and huge economic benefits are brought.

Description

technical field [0001] The patent of the present invention belongs to the field of amphibious aircraft hull watertight detection process method, in particular to a large-scale amphibious aircraft hull watertight detection system and method. Background technique [0002] During the manufacturing process of large-scale amphibious aircraft, watertightness tests are carried out on the fuselage of the aircraft, and sealing test methods such as spraying devices, static immersion, and external vacuuming methods are often used. When a large amphibious aircraft is flying on the water in the outfield, the leakage of the hull is unavoidable, and leakage often occurs at the rivet holes and the joints of the fuselage. Finding and repairing the leak quickly and accurately can stop the leak from getting worse. The spraying device requires a site and is large in size, and cannot be flexibly carried out in the field. It is suitable for use in the manufacturing stage; static water immersion ...

AI Technical Summary

Problems solved by technology

The spraying device requires a site and is large in size, and cannot be flexibly carried out in the field, so it is suitable for use in the manufacturing stage; when static water immersion and external vacuuming are used to conduct watertight tests on the hull, it cannot truly reflect the water pressure on the hull during sliding

During the outfield water test flight of a large amphibious aircraft, none of the above watertight test methods can meet the watertight test requirements of the outfield water test flight, which brings many difficulties to the detection of leakage points

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