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Experience sharing on conducting a gas-tightness test for the flare gas system (pipes). Due to the low operating pressure of the flare gas system and the fact that valves are generally not allowed to be installed on the vent pipes, a conventional configuration involves the use of a liquid separation tank and a water seal tank, which are connected to the flare cylinder; it is thus an open, atmospheric-pressure system. Even with a water seal in place, the back pressure is only in the tens of kilopascals, which is not considered a condition sufficient to detect leaks. Dear sea friends, please share your experiences. Process Management Group
When conducting a leak test on the flare gas system, here are some suggestions and experience shares: 1. Ensure the quality of pipeline installation: During installation, make sure that the pipe connections are secure and well-sealed. Use appropriate sealing materials and connectors, such as rubber gaskets or thread sealant. Inspect all connection points and joints to ensure there are no cracks or air leaks. 2. Standardize operational procedures: Establish detailed procedures and steps to ensure that each test is carried out in accordance with the regulations. Train staff to become familiar with the operating procedures and instruments. 3. Improve detection methods: In addition to the common visual inspection and auditory testing, bubble leak detectors or pressure measurement instruments can be used for more accurate detection. Bubble leak detection agent can be applied around the connection points, and leaks can be detected by observing where bubbles form. Pressure detection instruments can determine whether there is a leak by measuring pressure changes within the pipeline. 4. Regular maintenance: Periodically inspect and service the pipes and connections of the flare gas system to ensure they are in good condition. If any cracks or air leaks are detected, repair them or replace the components promptly. 5. Implement safety measures: Before conducting the airtightness test, ensure that safety measures have been put in place in the work area. For example, use explosion-proof devices and protective equipment to ensure the safety of operators. 6. Record and analyze data: During the airtightness test, record the test data and results. Analyze the problems identified during the testing process and take appropriate corrective actions. 7. Exchange with experts from other industries: Attend industry conferences, seminars, or online forums to exchange experiences and share techniques with other professionals, and learn about best practices from other industries. In summary, the airtightness testing of the flare gas system requires careful handling and strict control to ensure that the system operates properly and safely and reliably. The above are some experience shares; I hope they will be helpful to you. .
Are there any experiences regarding processes or standards? That would be great
For the airtightness testing of pipelines in the flare gas system, here are some suggestions and practical guidelines: 1. Determine the test pressure: Establish an appropriate test pressure based on the design requirements and the pressure-bearing capacity of the pipeline material. Generally, the test pressure should be about 1.5 times the working pressure. 2. Test duration: During the airtightness test, the test pressure should be maintained for a certain period of time (for example, 30 minutes to 1 hour) in order to determine whether there are any leaks in the system. After the test is completed, check whether there is a significant drop in the test pressure. 3. Detection methods: In addition to visual and auditory inspections, devices such as pressure gauges, leak detection instruments, or bubble leak detectors can be used for more accurate detection. When using these devices, it is necessary to follow the operation manual strictly for both operating them and interpreting the results. 4. Seal other outlets: During the airtightness test, all other outlets connected to the system should be sealed or closed to ensure accurate test results. For example, close all valves or install temporary sealing covers. 5. Recording and reporting: During the airtightness test, the data and results obtained during the testing process should be recorded. These records can be used for analysis and comparison, as well as to trace the causes when problems arise. At the same time, a test report should be prepared, detailing the purpose, methods, results, and conclusions of the testing. 6. Applicable specifications: Conduct airtightness tests in accordance with the requirements of specific industries and regions, referring to the relevant specifications and standards. For example, **standards such as GB/T 50243-2002, industry standards, or internal corporate procedures, etc. The above are some experiences in terms of processes and specifications; I hope they will be helpful to you. Before conducting a gas-tightness test, it is recommended to thoroughly understand the relevant design requirements and applicable standards, and consult professionals for guidance. .
Same question: I remember that for the previous project, the section from the liquid separation tank and water seal tank to the flare tower was not made airtight