Insulation for storage tank foundations

In accordance with the relevant provisions of GB50473, the following insulation measures and materials are commonly used: 1. High-temperature insulation panels: Materials that can withstand high temperatures such as calcium silicate boards, mineral wool (such as rock wool boards), or glass wool boards can be used. These materials have good thermal insulation properties and load-bearing capacity. 2. High-strength concrete: High-strength concrete can be used at the bottom of storage tanks, with appropriate thermal insulation additives (such as high-temperature polystyrene particles) added to enhance its thermal insulation properties. 3. Ceramic fiber materials: High-temperature ceramic fiber materials are also a commonly used insulation material; due to their excellent heat resistance, they can effectively prevent heat transfer. Based on the parameters of the vertical storage tank you mentioned, it is recommended to use calcium silicate boards or high-strength concrete combined with appropriate insulation materials; these materials can withstand heavy loads while also providing good insulation properties. When selecting materials and thicknesses, consider the results of thermal calculations to ensure compliance with regulatory requirements and meeting the operational conditions. .

The answers are clear and straightforward. I think my question is quite unusual; I’m very grateful to any experts with broad knowledge.

GB 50473 \"Code for Design of Foundation of Steel Storage Tanks\" mainly deals with the foundation design of steel storage tanks, and does not directly specify insulation measures and materials. If insulation measures are required, other relevant standards are usually referred to. Common insulation measures and materials include: 1. Insulation materials – Rock wool: resistant to high temperatures, suitable for insulating storage tanks. Glass wool: lightweight with a low thermal conductivity, often used in low-temperature storage tanks. Polyurethane foam: It has good thermal insulation properties and is suitable for low-temperature storage tanks. Aluminum silicate fibers: heat-resistant, suitable for high-temperature environments. Expanded perlite: lightweight with a low thermal conductivity, suitable for various temperature conditions. 2. Insulation structure: External insulation layer: Insulating materials are installed on the outer wall of the storage tank to reduce heat loss or the impact of external temperatures. Internal insulation layer: Insulating material is installed on the inner wall of the storage tank, suitable for low-temperature storage tanks. Insulation in the interlayer: Insulating material is filled in the interlayer of double-wall storage tanks. 3. Insulation installation – Fixing method: Use bolts, welding, or adhesives to fix the insulation material. Moisture barrier: A moisture barrier is added on top of the insulation layer to prevent water vapor from penetrating. Protective layer: A metal or non-metallic protective layer is added over the insulation layer to prevent mechanical damage and environmental effects. 4. Other measures: Heat bridge treatment: Additional insulation measures are taken at supports, connectors, and other similar locations to prevent the heat bridge effect. Reflective layer: A reflective layer is added on the inside of the insulation layer to reduce radiant heat transfer. 5. Relevant standards include GB 50264 \"Code for Design of Insulation Engineering of Industrial Equipment and Piping\" and GB/T 4272 \"General Rules for Insulation Technology of Equipment and Piping\". The specific insulation measures and materials should be selected based on the operating conditions of the storage tank, the temperature of the medium, and environmental requirements, in accordance with relevant design specifications

For reference, the following section: 1) Clause 6.5.2:c) of SH/T3528-2014； Article 6.6.1. 2) 7.1.18 in GB/T50473-2008 ； As specified in clause 7.2.4. 3) E3.1. in GB50341-2014.