Leakage-proof measurement device

Abstract

The invention discloses a leakage-proof measurement device. A tightness test method is carried out on a local weld of maritime work equipment and a ship structure. The leakage-proof measurement device is characterized in that in the maritime work equipment and ship structure closed space, when local butt-joint and angle-joint welds and end welds need the tightness test, a vacuum box and a rubber skin at the bottom of the box are firmly pasted to a steel plate with a weld, air in the box is evacuated through a T-type hollow round pipe at the box top, negative pressure for a certain period of time in the vacuum box is kept, if the negative pressure measured by a pressure gauge remains unchanged, the tightness of the weld is good, and if the pressure changes, the weld is unqualified. The leakage-proof measurement device has the beneficial effects that after a weld in a large cabin and a local disqualified weld are repaired, a tightness test does not need to be carried out again on the whole cabin to check the quality of the local weld, only the test method of the invention can be used, a large amount of manpower, material resources and time can be saved, and the local weld detection is more convenient.

Description

technical field [0001] A leak-proof measuring device relates to the technical field of leak-proof testing devices for local welds of offshore equipment and ship structures, Background technique [0002] The existing technology of seam tightness test of marine engineering equipment and ship structure has the following disadvantages: [0003] 1. The quality problems of the welds in the cabin need to be repaired after flaw detection or filming. After the repair, the local welds need to be tested for tightness. The device adopted in the prior art is to do an airtight test of the entire cabin to inspect the local welds. Tightness. [0004] 2. If the local butt joints, fillet welds and end seams in the cabin are welded after the overall airtightness test of the cabin, it is only necessary to detect the last welded seam, but the existing technology is to do the airtightness test of the entire cabin To check the tightness of the weld. [0005] 3. If the local structural changes o...

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Problems solved by technology

[0005] 3. If the local structural changes of marine engineering equipment and ships cause re-welding work, it is also necessary to conduct a tightness test on the welds at this time, but the existing technology still does the airtightness test of the entire cabin to check its tightness

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