Naval Architecture
In the complex and high-risk operating environment of shipyards, gas leaks and electrical leakage hazards lurk like “invisible killers,” posing a serious threat to personnel safety and the stable operation of equipment.
Case Background
Client: A Certain Shipbuilding Engineering Co., Ltd.
Requirements: The primary risk of gas leaks is concentrated in the gas piping system: acetylene and oxygen pipelines used for welding, if subjected to aging, corrosion, or improper installation resulting in cracks, or if cylinder valve seals fail, may lead to the release of flammable and explosive gases, which can easily trigger an explosion in enclosed compartments or in the presence of electric welding sparks. Similarly, leaks in compressed air lines not only result in energy waste but also pose a safety hazard, as high-velocity air jets can entrain metal debris, causing injury or even leading to loss of control of pneumatic tools. As for electrical leakage risks, they typically stem from defects in the electrical system: in humid environments, insulation breakdown between the ship’s steel structure and temporary cables can cause the hull to become energized; loose plugs on power tools, ungrounded distribution boxes, or overloaded operation can lead to localized overheating and even short-circuit sparks; and the unauthorized use of non-explosion-proof electrical equipment in confined spaces can further increase the likelihood of electrical sparks igniting flammable gases, potentially resulting in serious accidents.
Requirements: The primary risk of gas leaks is concentrated in the gas piping system: acetylene and oxygen pipelines used for welding, if subjected to aging, corrosion, or improper installation resulting in cracks, or if cylinder valve seals fail, may lead to the release of flammable and explosive gases, which can easily trigger an explosion in enclosed compartments or in the presence of electric welding sparks. Similarly, leaks in compressed air lines not only result in energy waste but also pose a safety hazard, as high-velocity air jets can entrain metal debris, causing injury or even leading to loss of control of pneumatic tools. As for electrical leakage risks, they typically stem from defects in the electrical system: in humid environments, insulation breakdown between the ship’s steel structure and temporary cables can cause the hull to become energized; loose plugs on power tools, ungrounded distribution boxes, or overloaded operation can lead to localized overheating and even short-circuit sparks; and the unauthorized use of non-explosion-proof electrical equipment in confined spaces can further increase the likelihood of electrical sparks igniting flammable gases, potentially resulting in serious accidents.
Test Record
Surface Discharge on Insulators
·A water pipe joint along the wall at the rear of the plant’s distribution room is leaking.
·After on-site tightening → the acoustic band disappears, and dripping stops.
Oxygen Station & CO₂ Pressure Regulation Area
·Three minor leaks were detected in pressure regulators, with the largest measuring 64 dB.
·Recommendation: Replace the sealing ring and conduct regular inspections.
Compressed Air System
·Seven leakage points, including valve damage, hose aging, and air leaks from disconnected nozzles.
·After replacement/tightening, retest; the acoustic speckle returns to zero.
Transformer Room
·No partial discharge signal; the red area indicates the cooling fan at 55 dB.
·Conclusion: The noise source is the cooling fan located behind the transformer; this is not an equipment malfunction.
Flammable Gas Cylinder Area
·Pressure gauge interface: 45 dB continuous hissing sound.
·Recommendation: Use soapy water to verify and replace the gasket promptly.
Test Results
We offer efficient, professional plant-wide leak detection services that can complete a comprehensive “leak health check” of the entire facility in as little as 60 minutes. The entire process requires no production shutdown and eliminates the need for personnel to perform work at heights, significantly minimizing disruption to normal operations and reducing safety risks. Moreover, we seamlessly integrate leak detection with corrective actions, enabling immediate remediation once the inspection is complete. In this particular engagement, we precisely identified 12 leak points, which are estimated to save the facility up to RMB 48,000 in energy costs annually, thereby effectively supporting cost reduction and efficiency improvements.
Dedicated to transforming cutting-edge acoustic technologies into industrial-grade solutions, we provide customers with precise and efficient acoustic imaging equipment and services, and continuously optimize source localization algorithms.
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