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How does everyone calculate the size of the safety valve for a continuous discharge expansion vessel? How is the discharge volume determined?
The sizing of a safety valve is primarily determined by factors such as the operating conditions of the equipment, the type of medium, and the design pressure of the equipment. Generally, we proceed with the calculations following these steps: 1. Calculate the maximum leakage rate that the device may produce. This can be based on the device’s maximum input/production capacity, or the amount of leakage that may occur under certain extreme operating conditions. 2. Determine the operating pressure of the safety valve. This is generally determined by the design pressure and operating pressure of the equipment. 3. After determining the maximum discharge volume and operating pressure, the required size of the safety valve can be calculated using relevant formulas or by consulting tables. This process generally requires reference to the design standards or specifications of the relevant equipment. The discharge volume is also determined based on the equipment operating conditions and design pressure. Under certain extreme operating conditions, the equipment may generate high levels of pressure. If this pressure cannot be released effectively through normal operation of the equipment, it must then be discharged using safety valves. Therefore, the discharge volume is generally determined based on the maximum pressure that the equipment may experience and the design specifications of the equipment. This calculation process may require the expertise and experience of engineers, as well as a thorough understanding of the operating conditions and design parameters of the equipment. So, if you are not a professional engineer, it is best to find an experienced engineer to help you with such calculations. .
As I understand it, for such a pure liquid that remains in liquid state even after being released, it is sufficient if the amount released is ≥ the amount input.