Mnemonic for pipe installation

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When installing pipes in the workshop, I must not forget the basic principles. The pipe should be straight rather than curved, short rather than long; choose a thicker pipe if possible instead of a thinner one. Remember the points mentioned above. Whether in high temperature or extreme cold, compensation is ensured within 50 meters. Measure more, draw more, calculate more; cut materials with precision and stay calm. Use a knife more often than gas cutting to achieve higher durability and quality for pipes. Flanges at the weld joints should be arranged wisely; think carefully when encountering corners. Think more, ask more questions, and look at more images; don’t hide congenital defects. Execution standards must be strict to ensure safety and quality. Explosion-proof pipes are tricky to deal with; fixing leaks is truly difficult. No welding or heating is allowed; cut it open and replace the flange as soon as possible. Careful and meticulous work ensures the project is free from any issues. Detect flaws and defects early, and make timely corrections to ensure safety. Interpretation 1: “Managers should be direct rather than indirect; pipes should be short rather than long. Choose thicker pipes whenever possible instead of thinner ones. It’s better to use flexible connections rather than fixed welds. Regardless of whether the environment is hot or cold, compensation must be provided within 50 meters.” These are the principles that should be followed in pipeline layout design. The phrase “it’s better to use flexible connections rather than fixed welds” means that flanges should be used as much as possible to create flexible connections, with fixed welds used as little as possible ； In pipeline connections, a pair of flanges must be installed at regular intervals to ensure that any section of the pipeline can be removed easily. Interpretation 2: “Use knives more often than gas cutting to achieve higher durability and quality of pipes” means that when it is necessary to cut pipes, a pipe cutter should be used instead of gas cutting, and a pipe cutting knife should be employed rather than a cutting machine. This is because every time the pipe is exposed to high temperatures, its internal structure suffers damage, and the high temperatures involved in gas cutting are different from those in welding. Therefore, when installing pipes, we must keep in mind that \"use cutting tools more often than gas cutting to ensure high durability and quality of the pipes.\" Interpretation 3: “Think more, ask more questions, and examine the drawings carefully; never hide congenital defects” means that before starting installation based on the drawings, it is essential to think thoroughly, ask plenty of questions, and examine the drawings closely, in order to prevent design flaws from being amplified when they are implemented in the workshop. Some design drawings are created by technicians working overtime, so flaws are inevitable; therefore, it is very important to think carefully, ask questions frequently, and examine the drawings closely ； Any obvious violations of chemical engineering principles should be reported promptly, to prevent inherent defects from arising after installation, which could even lead to irreparable losses during operation. On this issue, do not place blind trust in \"technical experts\" or in \"famous schools and institutions\"; the safety of employees and the interests of the company come first, and no one’s \"face\" matters at all ； Because if an explosion-proof workshop has inherent defects, the cost it has to bear is very high. Interpretation 4: “Explosion-proof pipes present significant challenges when it comes to fixing leaks; welding or using fire is not allowed, so it’s better to cut them open and replace the flanges as soon as possible.” This is a problem that many companies encounter frequently during pipe installation. In such explosion-proof pipes, from the material tank to the high-level tank, all connections are made through butt welding, with no flanges used at all. This installation method poses significant safety risks; when there is a leak in a certain section of the explosion-proof pipeline during use, the whip-like welded connections create unpredictable difficulties in repairing the leak. Faced with a small leak, neither heating nor welding is allowed. So, it’s necessary to cut and add the flange as early as possible. ​