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Small underwater equipment cabin sealing performance detection method

A technology for leak detection and underwater equipment, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, and by measuring the increase and deceleration rate of the fluid, so as to avoid direct failure of water leakage and the effect of simple, safe and effective detection method

Active Publication Date: 2022-06-10
SHENZHEN CHASING INNOVATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a small-scale underwater equipment cabin airtightness detection method, which solves the existing problem of complex operation and high risk in the detection of cabin airtightness in the water environment

Method used

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  • Small underwater equipment cabin sealing performance detection method
  • Small underwater equipment cabin sealing performance detection method
  • Small underwater equipment cabin sealing performance detection method

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Experimental program
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Effect test

Embodiment 1

[0032] Situation 3. The water depth is 30 meters and is increasing, the acceleration is 0, the landing is at a constant speed, the pressure change rate of the sealed cabin is 2.5Pa / s, and the derivative of the pressure change rate is 0.3Pa / s 2 , to accelerate the boost, it is determined that there is a leak, and the shutdown and power-off protection is started.

[0033] Situation 4. The water depth is 50 meters and increasing, and the acceleration is -0.05m / s 2 , Deceleration and landing, the pressure change rate of the sealed cabin is 2.7Pa / s, the derivative of the pressure change rate is 0, and the pressure is increased at a constant speed, it is determined that there is a leak, and the shutdown and power-off protection is activated.

[0034] Situation 5. The water depth is 7 meters and increasing, and the shutdown and power-off protection is not activated.

[0035] Situation 6. The water depth is 5 meters and is decreasing, the acceleration is 0, the flight is ascending at...

Embodiment 2

Embodiment 3

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Abstract

The invention discloses a small underwater equipment cabin sealing performance detection method, and relates to the technical field of underwater equipment. In the detection of the sealing performance of the sealed cabin of the small underwater equipment, the air tightness detection is used for replacing the water tightness detection, and the detection of the sealing performance of the sealed cabin is completed by combining an air exhaust pressure reduction mode and an air inflation pressurization mode with the collection of the pressure value in the cabin by the pressure sensor. The detection method is simple, safe and effective, and the sealed cabin is not secondarily disassembled and assembled in the detection process. After detection is completed, glue filling and sealing are conducted on the detection air holes, the sealing state of the sealed cabin body after detection is guaranteed, the sealing performance of the sealed cabin body in the using process is monitored through a pressure sensor, when the pressure in the cabin body is abnormal, an operator is warned that the cabin body leaks water, electrical elements in the sealed cabin body are further protected, and the service life of the cabin body is prolonged. And direct failure caused by water leakage is avoided.

Description

technical field [0001] The invention relates to the technical field of underwater equipment, in particular to a method for detecting the airtightness of a cabin of a small underwater equipment. Background technique [0002] Underwater equipment, especially underwater submersibles, underwater robots, etc., as intelligent equipment, are generally equipped with sophisticated electronic control systems, electronic components, etc., and electrical components require a certain degree of waterproof sealing. In order to facilitate the detection of sealing, usually The electrical components will be concentrated in a sealed cabin as much as possible, so as long as the cabin is well sealed, the equipment can usually work normally underwater. The volume of the sealed cabin in small underwater equipment is generally less than 10L, and underwater equipment of this size is more common in the industry. At present, when testing the airtightness of the airtight cabin, most of the operations ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/32
CPCG01M3/32Y02E30/30
Inventor 王思奥李维伟罗杰
Owner SHENZHEN CHASING INNOVATION TECH CO LTD
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