Water leakage detection circuit and method of hydraulic pressure test of main propulsion motor in deep sea navigation device

Abstract

The invention discloses a water leakage detection circuit and method of hydraulic pressure test of a main propulsion motor in a deep sea navigation device, and the problems that water leakage occurrence time is hard to detect accurately and the main propulsion motor tends to burn out are solved. The rear contact of a liquid leakage sensor (J1) in an enclosed casing of the main propulsion motor isgrounded, the front contact of the liquid leakage sensor (J1) is connected with a control circuit power supply (VCC) via a first limiting resistor (R1) and also with one end of a control coil in a relay (3), the other end of the control coil in the relay (3) is grounded, a moving end (a) of a single-pole double-throw switch in the relay (3) is connected with the anode of a driving power supply (4)of the main propulsion motor, and the main propulsion motor (5) is connected between the cathode of the driving power supply (4) of the main propulsion motor and the first non-moving end (b) of the single-pole double-throw switch in the relay (3). Thus, water leakage in the moving sealing device can be detected timely.

Description

Technical field [0001] The invention relates to a hydraulic test of a main propulsion motor of an underwater vehicle, in particular to a water leakage automatic detection circuit and a detection method in the hydraulic test of a deep-sea vehicle. Background technique [0002] With the continuous increase in the development of deep-sea resources, the navigation time of underwater vehicles is getting longer and longer, and the diving depth is also increasing, and the requirements for the sealing performance of the aircraft are getting higher and higher, especially for the aircraft. The dynamic sealing requirements of the main thrust motor at the tail end are getting higher and higher. During deep-sea operations, once the main propulsion motor of the aircraft leaks, due to the large pressure of the deep sea, a large amount of water is injected into the cabin of the aircraft in a short time, causing the aircraft to generate strong negative buoyancy, prompting the aircraft to accelera...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a water leakage detection circuit and detection method for a main propulsion motor hydraulic test of a deep-sea aircraft, which solves the technical problems of poor accuracy in detecting water leakage occurrence time and easy occurrence of main propulsion motor burnout in the main propulsion motor hydraulic test

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