Why is there a negative pressure inside the low-pressure steam-water separator?
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Why is there a negative pressure inside the low-pressure steam-water separator? I need the help of experts. In this process, 0.5 MPa steam passes through a vaporizer for heat exchange before being sent to a low-pressure steam-water separator from where it is pumped outside. Recently, the negative pressure inside the low-pressure steam-water separator has affected the operation of the pump. The steam in the vaporizer flows through the tube side, with a condensate temperature of 40°C; the fluid flows through the shell side, with an inlet temperature of 30°C in liquid form and an outlet temperature of 49°C in gas form. I seek guidance on this issue
Are there any changes in the process parameters, is the inflow and outflow balanced, and are the instruments accurate?
Could steam condensation create negative pressure? Try increasing the steam temperature, pressure, or flow rate
:Is it that you have less condensate, and the pump outlet is too large?