Overview of non-destructive testing technology for low-temperature storage tanks and factory management measures

Firstly, an overview of non-destructive testing technology for LNG storage tanks. Generally speaking, a sealed equipment that contains gas or liquid and carries a determined pressure is a pressure vessel. Pressure vessels, due to the enclosed pressure of gases or liquids inside or outside, are prone to accidents such as explosions, fires, and environmental pollution. Therefore, the production and testing of pressure vessels have high requirements for safety. Non destructive testing technology plays a significant role in protecting equipment in pressure vessel manufacturing, including visual inspection (VT), ultrasonic testing (UT), acoustic emission testing (AE), radiographic testing (RT), magnetic particle testing (MT), penetrant testing (PT), eddy current testing (ET), magnetic leakage testing (LT), and magnetic memory testing. Non destructive testing of LNG storage tanks is a comprehensive application technology, and in-depth research on non-destructive testing technology will promote the healthy development of this industry. The role of LNG storage tanks in economic development is becoming increasingly prominent. It can be foreseen that LNG storage tanks will achieve considerable development, with larger volumes and higher parameters. The use of materials, structures, media, etc. will become more complex, and corresponding detection technologies for LNG storage tanks will continue to be updated. With the development of non-destructive testing technology and the accumulation of experience, new testing techniques and ideas are constantly emerging, which promotes the continuous development of non-destructive testing technology. The new non-destructive testing technology has gone through a transformation process from non-destructive testing (NDI) to non-destructive testing (NDT) and then to non-destructive evaluation (NDE), and is developing towards automatic non-destructive evaluation (ANDE) and quantitative non-destructive evaluation (QNDE). The implementation of healthy, comprehensive, and big data processing based testing is constantly breaking through the technological barrier, and green non-destructive testing, which is characterized by digital images and informatization, is also greatly inspiring the revitalization of the industry. I believe that in the near future, non-destructive testing technologies in industries such as nanomaterials and microelectromechanical devices, which are at the forefront of technology, will be rapidly developed. Secondly, management measures for LNG plants: 1. Establish a sound management structure and personnel. In natural growth gas storage tank plants, it is necessary to set up a relatively strong management structure, and also allocate positions for supervisors and employees, with unified responsibilities and rights. Relevant personnel need to conduct regular inspections of the site and promptly identify and handle any issues. At the same time, factories also need to establish sound management systems to protect on-site management. 2. Improving management system: LNG plants should cover two aspects in terms of management system: first, national and local level laws and regulations, and second, enterprise made management system. Strictly in accordance with national laws, regulations, standards and specifications, combined with our own production process, job task characteristics, risk factors and occupational disease prevention requirements, we have revised diverse, applicable, production management systems, operating procedures and emergency plans for production accidents. The textual descriptions should be as accurate and easy to understand as possible, making it convenient for practitioners to understand, master and implement them. 3. Strengthening and implementing the system of full production responsibility for all employees takes the socialist ideology with Chinese characteristics in the new era as the guiding ideology, and establishes the basic concept of development. We must continuously promote the idea of putting life first and importance first, implement the responsibility of production to the main body, establish a sound production responsibility system, and continuously innovate the sense of responsibility and rule of law for serving enterprise production, and improve the production management system. 4. Establish a sound dual prevention mechanism, establish a dual prevention mechanism of control and governance, and conduct risk classification control and hidden danger investigation and governance to identify potential hidden dangers that may cause major accidents. Risk grading control is the premise and foundation of hazard investigation and management. By identifying the risk points of all process flows, equipment facilities, and workplaces in liquefied natural growth gas plants, dividing risk levels, and developing risk grading control measures, relevant risks can be reduced or controlled from the source, further reducing the probability of accidents and the potential serious consequences. The development of liquefied natural growth gas (LNG) plants in China is still in its early stages, especially in the domestic market where there are no well-established industry standards for LNG station design and construction. In addition, during the construction and operation process, there are also many risk factors and various hidden dangers. Therefore, liquefied natural growth gas practitioners need to be proficient in the performance of liquefied natural growth gas, continuously strengthen the configuration of various infrastructure on the basis of improving technical and institutional management, enhance the awareness, job operation level, and emergency response ability of practitioners, effectively protect the production of liquefied natural growth gas factories, continuously reduce the probability of related accidents, resolutely resist the probability of various production accidents, in order to maintain the lives and property of enterprises and employees, and promote the development of enterprises.