The cargo hatch cover is a type of closure device that ensures the watertight integrity of the ship’s hull and the safety of the cargo inside the hold. It also has a certain ability to withstand pressure. Since the hatch openings closed by the hatch covers are relatively large, the watertightness, strength and reliability of the hatch covers are crucial to the quality of cargo transportation and the safety of the ship.
During the inspection process of new ship construction, the water jet test is commonly used to check the watertightness of the hatch covers. However, the water jet test is subject to climatic conditions(for example, it cannot be conducted on rainy days or when the temperature is below 0℃). Moreover, the large amount of splashing water during the test can affect construction operations in the surrounding area and may also cause pollution to the waters where the ship is moored.
Ultrasonic testing technology, which is widely used in the marine insurance industry for checking the watertightness of hatch covers. Ultrasonic hatch cover leakage detector is increasingly gaining attention due to its ability to precisely locate leakage points, high sensitivity and convenient operation. It has a broad application prospect in ship inspection work.
How to use ultrasonic leak detector for ship cargo hatch covers?