Can high-pressure liquid be directly introduced into a tank at normal pressure?
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A gas-liquid separation tank is a atmospheric-pressure tank that is in communication with the atmosphere (designed according to high-pressure tank standards to prevent pressure surges). Can high-pressure liquid be introduced into it directly without depressurization? What impact does a sudden drop in pressure have on pipelines?
Don’t understand your design approach? Does the high-pressure liquid come from the safety valve or the relief valve? What process? Are atmospheric pressure tanks designed as high-pressure tanks?
It seems that Building 1 is in a mess; a normal-pressure tank remains normal-pressure as long as the diameter of its gas emission pipe is appropriate. It’s better to think more about how to prevent pipeline vibration damage; for example, interlock and shut off the switch valve on the pipeline when the liquid level in the upstream high-pressure tank is too low or the flow rate in the inlet pipeline is too high.
1. If the temperature of the high-pressure medium does not cause it to undergo a phase change into a gaseous state at normal pressure, and since the liquid phase is essentially incompressible, as long as the flow rate into the low-pressure tank is not too high, the tank is not filled to capacity, and proper ventilation from the tank is ensured, no pressure increase will occur. 2. Many process media have a certain temperature at high pressures; when the pressure is reduced rapidly, flash vaporization occurs, and the generated gas cannot be released in time, leading to an increase in pressure in the downstream containers. Therefore, these containers must be designed taking into account the possible pressure and temperature conditions. 3. Flash vaporization can cause cavitation, vibration, and noise in the downstream equipment and pipelines, so appropriate measures are necessary. 4. The scenario mentioned by the original poster, in which no pressure reduction takes place, seems impossible in actual processes. There must be throttling devices to separate high and low pressures; otherwise, high pressure cannot be established nor can low pressure be achieved, with only a pressure drop across the pipeline occurring. So the OP’s question is too difficult.
There is flow control between the high-pressure tank and the low-pressure tank; currently, it is being considered whether FV alone can achieve a stable pressure reduction
It is recommended to use cyclone separation in the gas-liquid phase separation tank, with automatic regulation and pressure relief for the gas phase, and automated discharge of the liquid