Working principle of enamel glass lined bolted steel tanks

As a core equipment in industries such as chemical,pharmaceutical,and food,enamel glass bolted steel tanks combine high silica glass coatings with steel tanks,combining the chemical stability of glass lined bolted steel tanks of metal.Its core structure consists of a glass lined lining,a steel tank body,and a bolted connection system.Through excellent sealing and mechanical design,it achieves safe operation in highly corrosive,high-temperature,and high-pressure environments.
1.Sealing principle:Multi level protection system
The sealing of glass lined bolted steel tanks on triple protection:
Glass lined coating:directly isolates the medium from the metal substrate to prevent electrochemical corrosion.
Flange sealing surface:achieve line contact sealing through high-precision machining.
Gasket compression:The pre tightening force of the bolt causes plastic deformation of the gasket,filling the micro unevenness of the sealing surface.
2.Pressure balance and safety control
Tank design needs to consider fluctuations in operating pressure.The safety device includes:
Bursting film:ruptures and releases pressure when overpressure occurs,protecting the integrity of the tank.
Pressure gauge:Real time monitoring of pressure changes,with an accuracy level of≥1.6.
Safety valve:Set the opening pressure to 1.05-1.1 times the design pressure to ensure automatic discharge in case of overpressure.
2、Principles of Thermodynamics and Temperature Control
1.Heat transfer mechanism
The temperature control of the enamel glass lined bolted steel tanks is achieved through jacket heating or coil heat exchange.For example,in the sulfonation reaction,the material temperature needs to be controlled between 80-120℃.The heat transfer efficiency is affected by the thickness of the enamel glass coating and the thermal conductivity of the steel tank body.
2.Temperature variability and thermal stress management
The enamel layer is sensitive to sudden temperature changes,and the allowable temperature difference range is usually≤200℃.For example,when heating from room temperature to 200℃,the heating rate should be≤50℃/h to avoid coating cracking caused by thermal stress.Natural cooling or slow introduction of cooling medium is required during cooling,and direct spraying of cold water is prohibited.
The enamel glass lined bolted steel tanks in highly corrosive,high-temperature and high-pressure environments through the synergistic effect of enamel glass coating and steel tank body,combined with bolt connection and sealing design.Its working principle involves interdisciplinary fields such as materials science,mechanics,and thermodynamics,and requires strict adherence to operating standards and maintenance requirements to ensure long-term stable operation of the equipment.In the future,with the development of intelligent monitoring technology,glass lined bolted steel tanks will further enhance safety and reliability,providing better solutions for the chemical industry.