Liu Hong Meng Qingting (Harbin Liming Gas Co., Ltd., Harbin 150046, Heilongjiang) The external anti-corrosion construction and maintenance of gas tanks have an important impact on the operational safety and operating costs of the company. How to scientifically carry out the first problem of gas production and distribution in gas storage and anti-corrosion construction and maintenance. In this paper, the characteristics and advantages of the external anti-corrosion technology of the gas storage tank are briefly discussed. The construction and maintenance of the external anti-corrosion of the gas storage tank are discussed. In the modern gas production and operation process, the gas storage tank is an important part of the infrastructure. In the anti-corrosion construction and maintenance work of gas storage tanks, it is necessary to carry out targeted control and management to achieve the purpose of anti-corrosion of gas storage tanks, realize the design service life and safety objectives of gas storage tanks. The importance of anti-corrosion construction and maintenance work for gas storage tanks should be improved. The gas production and management of the gas storage tank should improve the understanding of the anti-corrosion management work of the gas storage tank. Through technical screening, strict construction, and reasonable maintenance, the safety of the gas storage tank is guaranteed. The improvement of market competitiveness lays the foundation as an important way for anti-corrosion of gas storage tanks. The anti-corrosion technology has a high cost performance and the advantage of construction crash. At the same time, the anti-corrosion technology is also conducive to the later maintenance work. Therefore, this paper focuses on the analysis of the characteristics and advantages of the external anti-corrosion construction and maintenance management of gas storage tanks.

1 Characteristics and Advantages of External Anti-corrosion Technology of Gas Storage Tanks The external anti-corrosion technology of gas storage tanks has the technical advantages of collision of construction and collision of curing. At the same time, anti-corrosion coating only needs to consider the anti-corrosion effect, regardless of whether the anti-corrosion material of the gas storage tank and the storage gas are chemical. In the reaction, it is only necessary to consider whether or not a reaction between the anticorrosive coating and the can body material occurs. Moreover, in the anti-corrosion quality inspection after construction, it is more intuitive to choose the best cost-effective and safe construction method through the comparison of anti-corrosion materials and anti-corrosion technology advantages, which lays a good technical foundation for gas production and operation. In the maintenance work, the application of anti-corrosion technology can also provide a better maintenance construction environment for the maintenance of gas storage tanks. At the same time, it can be repaired in time according to the actual situation of the outer anti-corrosion layer of the gas storage tank, which is more conducive to the development of anti-corrosion maintenance work. The advantages and characteristics of anti-corrosion technology make it have great development space and prospect in the design and use of modern gas storage tanks. Gas production and management should analyze and discuss the advantages of anti-corrosion technology outside the gas storage tank. Suitable external anti-corrosion materials and construction techniques will lay the foundation for the effective development of gas storage.

2 Analysis of external anti-corrosion construction management of gas storage tanks 2.1 Select external anti-corrosion construction technology for the actual situation and development plan Before the external anti-corrosion construction of gas storage tanks, select the external anti-corrosion construction technology according to the actual situation and development plan of the enterprise. Firstly, the type and characteristics of the production and operation gas and the environment of the storage place of the gas storage tank should be analyzed to select the external anti-corrosion materials that meet the actual needs. On the basis of this, the economics of different construction materials and technologies that meet the needs of the enterprise are compared. This choice is the most cost-effective construction technology. In the process of selecting the anti-corrosion materials and technology outside the gas storage tank, it is necessary to analyze the development plan of the construction enterprise. The demand for the gas storage management work in the development plan is selected. The external anti-corrosion materials and technologies are targeted. The comparison and selection of anti-corrosion materials and technology of gas storage tanks make the application of anti-corrosion technology of gas storage tanks targeted and economical. Through in-depth analysis of the company's basic situation and the way of demanding this, the company's external gas storage anti-corrosion technology can meet the needs of the current situation and the development needs of the company in determining the external anti-corrosion construction materials and technology of the gas storage tank. Although the construction of anti-corrosion outside the gas storage tank guarantees the quality of anti-corrosion construction outside the gas storage tank.

2.2 Discussion on the construction management of external anti-corrosion of gas storage tanks The construction management of external anti-corrosion of gas storage tanks should be carried out through the management system's Shanshan, the factors controlling the quality of external anti-corrosion construction, scientific construction quality inspection, etc. To ensure the safety of the gas storage tank and the service life of the outer anti-corrosion layer. According to this management concept, the gas production and management should be analyzed and studied before the anti-corrosion construction of the gas storage tank, and the external anti-corrosion should be clarified. Construction management objectives On this basis, the construction management system is analyzed. Through the previous construction management work, the shortcomings in the construction management system are understood. At the same time, in view of the construction requirements of the external anti-corrosion construction of the gas storage tank, the existing construction management system is carried out. The defects in the construction management and the construction management system of the external anti-corrosion construction management requirements of the gas storage tank are used to regulate the external preservation of the gas storage tank. Construction management work and promotion of management objectives.

On the basis of doing a good job in the construction management system, the external anti-corrosion materials and construction techniques should be discussed. According to the technical characteristics and construction management requirements of different external anti-corrosion materials, the technical management requirements and key points in the external anti-corrosion construction process are clear. According to the construction technical requirements, the construction pipe I1X is used to ensure the quality of the external anti-corrosion construction of the gas storage tank. The outdoor storage of the gas storage tank chlorosulfonated polyethylene is taken as an example. The spraying position is the gas tank surface. The main factors of corrosion protection are corrosion against natural factors such as the atmosphere, ultraviolet rays and wind and rain. In general, the anti-corrosion design of this type of anti-corrosion technology is 5 years. Smooth use of substrate processing, primer, topcoat construction According to its anti-corrosion requirements, during the construction process, attention should be paid to whether the substrate treatment is in place to avoid the influence of rust, grease and dirt on the adhesion of the anti-corrosion primer. At the same time, it strengthens the management of the paint thickness and drying time during the primer spraying process. After inspection and confirmation that the external anti-corrosive primer is applied on the basis of the requirements, pay attention to the maintenance period of the topcoat, avoid the influence of artificial pedaling, mechanical collision, etc. on the coating integrity and avoid the rain, snow and windy weather construction. The impact of construction quality. In view of the technical characteristics of chlorosulfonated polyethylene anticorrosive coatings, various technical parameters during the construction process are controlled to ensure the performance of anticorrosive coatings and to ensure the realization of anticorrosive purposes.

For the external anti-corrosion demand of gas storage tanks, on-site technical control and management should be strengthened during the construction process, and factors affecting construction quality should be strengthened. The use of on-site technical personnel, quality management personnel to monitor the external anti-corrosion primer coating and surface coating quality, technical monitoring and management for weather, paint mixing and other requirements. With the on-site monitoring, the construction of the construction personnel will ensure the construction quality of the external anti-corrosion tank.

3 Discussion on the external anti-corrosion maintenance management of gas storage tanks As a key factor affecting the external anti-corrosion effect of gas storage tanks, the external anti-corrosion maintenance management work of gas storage tanks has an important significance for extending the external anti-corrosion cycle and ensuring the safety of gas storage tanks. The importance of anti-corrosion maintenance work outside the tank, gas production and management enterprises should develop a corresponding management system for the characteristics of external anti-corrosion technology. Guided by the establishment of the management system and the clear regulation of the system, the external anti-corrosion maintenance management of the gas storage tank is guaranteed to ensure the effective management of the external anti-corrosion maintenance management of the gas storage tank.

Firstly, the temple establishes a scientific management system according to the storage environment of the gas storage tank, and sets the sunshade and rainproof frame for the open storage characteristics to reduce the external anti-corrosion coating. Directly facing the ultraviolet rays and rain, prolonging the service life of the anti-corrosion coating outside the gas storage tank. On this basis, the establishment of a good inspection system strictly in accordance with the technical characteristics of the coated persimmons to check the inspection points of each inspection within a specified time to ensure the coating is improved to improve the anti-corrosion effect. For the case where the partial coating peels off and the bottom is exposed, it should be re-coated in time to ensure the coating integrity and achieve the anti-corrosion effect of the anti-corrosion coating.

After doing the above basic work, the gas production and operation enterprise should also strengthen the inspection of the external anti-corrosion coating and the basic theoretical knowledge structure of the maintenance personnel. Through the mastery of the characteristics of the anti-corrosion materials outside the gas storage tank, the inspection and maintenance are targeted. Based on this, according to the characteristics of the storage method and storage point of the gas storage tank, the key points of the external anti-corrosion protection of the gas storage tank are determined to achieve the anti-corrosion purpose by scientific conservation and protection of the external anti-corrosion coating.

It can be seen from the discussion in this paper that the construction of external anti-corrosion construction management and maintenance management of gas storage tanks is the key to achieving gas storage safety. For the rapid development of modern external anti-corrosion coating technology, the application of anti-corrosion technology for gas storage tanks should be based on the characteristics of storage points and the selection of high-efficiency, anti-corrosion effect of storage tank substrate, coating materials that can meet the storage conditions and according to anti-corrosion coating. Material technology requires construction management and maintenance work. The targeted management method is adopted to realize the anti-corrosion demand of the gas storage tank.

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