Dike installation and distance between tanks and the outside environment

There is no such standard as SHT3053 for the petrochemical industry; Table 4.2.12 in GB50160 provides specifications for internal floating roofs and Class B tanks. So, should we simply choose the stricter of these two standards?

There is no such standard as SHT3053 for the petrochemical industry; Table 4.2.12 in GB50160 provides specifications for internal floating roofs and Class B tanks. So, should we simply choose the stricter of these two standards?

Regarding your question, it is recommended that you refer to sections 6.2.11–6.2.17 of the \"GB50160-2008 Code for Fire Protection Design of Petrochemical Enterprises\" and section 3.2 on the layout of fire dikes for oil tank groups in the \"GB 50351-2014 Code for Design of Fire Dikes in Tank Farm Areas\"; these provisions should be able to help resolve your issue. It should also be noted that the installation of dikes in chemical storage areas must comply with the requirements specified in item (VI) of the \"Notice on Further Strengthening the Safety Management of Chemical Storage Areas\" issued by the **General Administration of Work Safety, Document No. An Jian Zong Guan San [2014] 68\": combustible liquid storage tanks must be equipped with fire dikes or fire barriers, one for each tank. ”The provisions shall be implemented. Although this is not a standard, in practice, safety supervision departments at all levels follow it in their operations. For your reference, according to Article 6.2.11 of the \"GB50160-2008 Code for Fire Protection Design of Petrochemical Enterprises\", fire dikes should be installed around tank farms. 6.2.12 The effective volume within the fire dike and partition dike shall comply with the following requirements: 1. The effective volume within the fire dike shall not be less than the volume of the largest tank in the tank farm; when floating-roof or internal floating-roof tank farms cannot meet this requirement, an accident liquid storage tank shall be installed to store the remaining volume, but the effective volume within the fire dike of the tank farm shall not be less than half of the volume of the largest tank in the tank farm ； 2. The effective volume within the dike shall not be less than 10% of the volume of the largest storage tank within the dike. 6.2.15 In a tank farm equipped with fire dikes, partitions shall be installed in accordance with the following requirements: 1. When the volume of a single tank is less than or equal to 5000 m3, the total volume of the storage tanks separated by the partitions shall not exceed 20000 m3 ； 2. When the volume of a single tank is between 5,000 m3 and 20,000 m3, there should not be more than 4 storage tanks within the dike ； 3. When the volume of a single tank is between 20,000 m3 and 50,000 m3, there should not be more than 2 storage tanks within the dike ； 4. When the volume of a single tank exceeds 50,000 m3, a partition should be installed every unit ； 5. There should not be more than 2 boiling liquid storage tanks separated by dike walls. 6.2.16 In liquid tank groups with multiple types of liquids, dike partitions shall be installed in accordance with the following requirements: 1. Between Class A/B liquids and Class A other flammable liquid storage tanks ； 2. Between water-soluble and water-insoluble flammable liquid storage tanks ； 3. Between combustible liquid storage tanks that can undergo chemical reactions when in contact with each other ； 4. Between storage tanks for oxidizers, strong oxidizing agents, and corrosive liquids and storage tanks for flammable liquids.