The water temperature issue in the deaerator
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Since the water temperature at the inlet of the deaeration pump has increased, does the inlet pressure of the pump also increase? Why? Thank you
That’s absolutely correct; as temperature rises, pressure rises as well.
In my opinion, it is not necessarily necessary to increase it; if the temperature of the incoming water rises, it might be advisable to reduce the amount of steam used in order to maintain the operating pressure of the deaerator
There should be such a correspondence: does the third floor refer to measures to reduce pressure or to lower temperatures?
Why does the inlet pressure increase when the inlet water temperature rises?
It depends on where the pump inlet of the original poster is connected to. If there are still pressure-raising devices ahead, then water temperature has no direct relationship with water pressure. However, if the pump inlet is connected to a deaeration tank, then there is such a relationship: since the saturated steam pressure in the deaerator is maintained by the gas phase, a higher temperature means an increased saturated pressure, which in turn leads to an increase in the pressure at the pump inlet. Of course, if it’s not thermal deoxidation, the significance isn’t that great.
The operating pressure of the deaerator is fixed; just because the water temperature is high, it doesn’t necessarily mean that the pressure at the pump inlet will be high as well, right?