At what pressure does a storage tank rupture?
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If the design pressure of storage tanks and heat exchanger equipment is around 1.0 MPa, in the event of a process accident that causes these tanks and heat exchangers to experience pressures exceeding their design values, could the equipment suffer tearing? By how much above the equipment’s design pressure does it usually tear? Please discuss it, thank you
It’s all in your design materials
Whether a storage tank or heat exchanger device will tear apart when subjected to pressures exceeding its design pressure depends on various factors, including the material of the device, the manufacturing process, the design standards, and the specific circumstances of the accident. Generally, when a device is subjected to a pressure higher than its designed level, safety devices such as relief valves are used to release pressure and prevent the device from tearing. However, if the accident results in prolonged overpressure or there are no effective safety devices, the equipment may tear. The specific pressure threshold at which a device tears is highly complex, as it depends on various factors such as the strength of the material, the quality of welding, and the manufacturing process. Generally, a certain safety factor is taken into account during equipment design, and tearing may not occur immediately even if the pressure exceeds the designed level by a certain extent. However, the specific situation needs to be determined based on the specific design and manufacturing of the equipment. In short, we are unable to provide a definite value to determine at what pressure the device will tear. In actual operation, to ensure the safety of the equipment, it is necessary to comply with design specifications, install appropriate safety devices, and carry out regular inspections and maintenance. Furthermore, great attention must also be paid to process control and operation in order to prevent equipment overpressure accidents. .
What pressure does the design documentation specify as causing the tank to tear?
Check the maximum allowable operating pressure; besides, equipment is equipped with safety valves
Design data usually includes the rated operating pressure and design pressure of the equipment. The rated operating pressure refers to the maximum pressure that a device can withstand during normal operation, while the design pressure is the maximum pressure that the device can endure under extreme conditions. The design pressure generally takes into account factors such as the safety factor and the strength of the material. The design documentation may mention the breaking pressure or tearing pressure of a device, which refers to the fracture strength or tearing strength of the material used in that device. The maximum pressure that equipment made from different materials and using different manufacturing processes can withstand also varies. However, design specifications generally do not specify exactly at what pressure the device will tear, as this depends on many factors such as material strength, manufacturing quality, and the device’s service life. Furthermore, equipment tearing is also affected by the accident process, such as the rate of pressure increase, time, and impact force. Therefore, to ensure the safe operation of the equipment, it is necessary to comply with design specifications and carry out regular inspections and maintenance. During the operation of the equipment, it is necessary to strictly control the process parameters to ensure that the equipment remains within safe operating limits. Additionally, appropriate safety devices should be installed to protect the equipment from overpressure and damage caused by accidents. .
Sometimes there are safety valves, and if pressure is not relieved in time, this can also lead to explosions
Should we sacrifice people’s lives just to carry out more research? Talented, hehe
There is no calculation method; even for devices with the same drawings and manufactured by the same team, factors such as the production environment and climate changes can affect the quality. Of course, these quality issues are not fatal, meaning they will not cause the container to fail under conditions of design pressure, temperature, etc. But it will affect its limit of endurance. No one goes ahead and calculates it either
Even containers made from the same drawings, using the same materials, following the same manufacturing processes and by the same manufacturer can have different burst test values. If overpressure occurs during the use of such containers, it is necessary to conduct a thorough evaluation before deciding whether to continue using them (to check whether fatigue damage has occurred to the materials)； Multiple blasting tests were conducted on small containers (under 150L); they generally begin to deform significantly only when subjected to pressures exceeding twice the design pressure, and they tear apart at pressures above 3.2 times the design pressure. The tearing usually occurs in the heat-affected zone of the longitudinal welds. It is impossible to generalize since various container structures, operating environments, design methods, and manufacturing processes differ.