Safety valve problem on heat exchanger
Thread Content
Problems with the safety valve on the heat exchanger. In the heat exchanger, the internal pipes carry gas and the shell carries the heat medium. When the internal pipes rupture, how should we consider it when calculating the safety valve on the heat exchanger? Is only the gaseous state considered? Or should we consider the two states of gas and liquid?
It should only consider the gaseous state. When there is an internal leak, it is an accident. When calculating the strength, it should be able to withstand the pressure it should withstand in the event of overpressure.
When calculating the safety valve on the heat exchanger, only the gas phase should be considered. There should be no internal tube rupture, which is a matter of service life.
The safety valve setting on the heat exchanger is mainly used when the pressure difference between the heat exchange media is relatively large. The relief valve selection should be based on the medium with high pressure.
If the heat is not large, just consider the gas state
Only the pressure on the shell side should be considered to adjust the pressure of the safety valve. Pipe leakage is an accident.
The safety valve is mainly used to consider the possibility that the actual pressure is higher than the design pressure.
Consider the gaseous state, which is safer