english 
Self Bunded Tanks achieve leak - prevention through several key design features and mechanisms, which are as follows:
Double - walled Structure: The core of the leak - prevention design is the double - walled structure. There is an inner tank and an outer tank with an interstitial space in between. The inner tank holds the liquid, and the outer tank acts as a secondary containment. If the inner tank develops a leak, the interstitial space is large enough to hold 110% of the inner tank's capacity, preventing the leaked liquid from escaping into the environment.
High - quality Seals: All connection points, including those for inlets, outlets, and between the inner and outer tanks, are fitted with high - quality seals. These seals are designed to prevent the passage of liquids and vapors. They are made of durable materials that can withstand the chemical properties of the stored liquids and the pressure changes within the tank, ensuring a tight seal under various operating conditions.
Regular Monitoring and Detection Systems: Many Self Bunded Tanks are equipped with monitoring and detection systems. These can include sensors in the interstitial space to detect the presence of liquid, which would indicate a leak in the inner tank. Some tanks also have pressure - monitoring devices to detect any abnormal pressure changes that might suggest a leak. Early detection allows for prompt action to be taken to prevent further leakage and potential environmental damage.
Material Selection and Quality Control: The materials used in the construction of Self Bunded Tanks, such as CORTEN steel, have excellent corrosion - resistance properties. This helps to prevent the formation of rust and holes in the tank walls, which could lead to leaks. Strict quality control measures are also implemented during the manufacturing process to ensure that the tanks are free from defects and have the necessary structural integrity to prevent leaks.