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Acrylic acid crystallizes when the temperature is below 17 degrees and undergoes self-polymerization when the temperature is above 23 degrees. Among those here, are there any who have experience in designing pipelines and equipment for acrylic acid? How should insulation be handled in such cases?
In the thermal insulation design of acrylic, it is necessary to maintain a stable temperature of the material within pipes and equipment, in order to prevent crystallization and self-polymerization. The following measures can be taken: 1. Insulation materials: Select insulation materials suitable for chemical media, such as mineral wool, polyurethane foam, etc. 2. Insulation thickness: The required thickness of the insulation layer is calculated and determined based on the properties of acrylic, its flow state, and the external ambient temperature. 3. Temperature control: Install a temperature control system, such as electric heating, a steam heating jacket, or a heat exchanger, to maintain the temperature between 17 and 23 degrees. 4. Pipeline design: Minimize dead corners and cold bridges in the pipelines to ensure uniform flow of acrylic acid. 5. Insulation structure: An aluminum foil or stainless steel cover should be installed outside the insulation layer to protect the insulating material and prevent moisture from entering. 6. Monitoring and maintenance: Regularly check the insulation performance and the operating condition of pipeline equipment, and carry out repairs or adjustments as needed. .