Dry cabin for maintaining underwater joint of jacket and mounting method of dry cabin
An installation method and jacket technology, applied in the field of dry tanks, can solve problems such as waste, and achieve the effects of ensuring airtightness, easy maintenance, and cost savings
Active Publication Date: 2015-11-04
SHENZHEN OFFSHORE OIL ENG UNDERWATER TECH
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Problems solved by technology
[0003] The traditional repair method for cracks caused by underwater damage to the jacket is to first fix the damaged part with clips, and then fill the damaged part with grout for temporary repair; ) and require underwater high-quality welding repairs, often only the jacket can be discarded, resulting in a lot of waste
Method used
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[0044] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0045] Such as figure 1 As shown, the dry tank 10 for repairing the underwater node A of the jacket 1 in a preferred embodiment of the present invention includes a cabin body 11 and an access passage 12 communicated with the inner cavity of the cabin body 11, and the cabin body 11 is connected to the jacket 1 The underwater node A is covered to form a space isolated from the outside, and the access channel 12 extends above the water, so that operators can enter the cabin body 11 through the access channel 12 from the water, and carry out repair work on the underwater node A of the jacket 1 .
[0046] In some embodiments, the cabin body 11 includes two split panels that can be separated from each other, and the two spli...
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The invention relates to a dry cabin for maintaining an underwater joint of a jacket and a mounting method of the dry cabin. The dry cabin comprises a cabin body and an access way communicated with an inner cavity of the cabin body. The cabin body comprises at least two split cabin sheets capable of being separated from each other, and the split cabin sheets are spliced to form the cabin body. Splicing lines of the split cabin sheets are in sealing fit, and two first sleeve holes used for matching circumferential rings of the outer walls of the two ends of a pile leg respectively and a second sleeve hole used for matching the circumferential ring of the outer wall of the jacket are formed in the splicing lines. The first sleeve holes are in sealing fit with the pile leg, and the second sleeve hole is in sealing fit with the jacket. The access way upwards extends out of a water surface. The dry cabin can be mounted underwater in a spliced mode, and the underwater joint is isolated from the outside, so that the sealing performance of the internal part and the external part of the cabin body is guaranteed. After water in the cabin body is pumped out, the water can enter the cabin body from the access way to maintain the underwater joint, and maintenance is easier. Meanwhile, the interior of the cabin is in a normal pressure state, so that the repairability of the underwater joint is improved, the jacket is continuously utilized, and cost is reduced.
Description
technical field [0001] The invention relates to the field of marine engineering, and more specifically relates to a dry tank for repairing underwater nodes of a jacket and an installation method thereof. Background technique [0002] In recent years, with the rapid development of marine engineering, more and more jackets are installed at sea. During the installation process, parts are partially damaged due to accidental collisions. Some jackets in long-term service are affected by wind, waves, Fatigue cracks are generated due to random alternating loads such as currents; or are damaged by fishing nets, anchors, and ship impacts. There is a great risk in the service of a jacket with local damage, and it needs to be repaired before it can be used. [0003] The traditional repair method for cracks caused by underwater damage to the jacket is to first fix the damaged part with clips, and then fill the damaged part with grout for temporary repair; ) and require underwater high-...
Claims
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Inventor 崔宁宋春娜魏行超侯志文齐兵兵张凯峰曾啸邱辉武
Owner SHENZHEN OFFSHORE OIL ENG UNDERWATER TECH