Questions regarding the pressure during the steam condensation process
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I would like to ask: When high-pressure steam is condensed by a heater and then discharged through a drain valve into the low-pressure condensate piping network, where does the main pressure drop occur in this entire process? Thank you!
Pressure drop refers to the decrease in pressure that occurs when a fluid flows through a pipe due to energy loss. From this perspective, pressure drop is a passive reduction in pressure caused by resistance losses in the pipeline, rather than an active pressure reduction required by the process. For example, in the scenario where steam condenses inside a heat exchanger, the conversion of steam into condensed water results in a significant drop in pressure; this pressure difference is not referred to as a pressure drop.
The main reduction in pressure occurs at the steam trap. Since the steam trap is responsible for regulating and controlling the flow of condensate from the high-pressure side to the low-pressure condensate piping network, it is a key component in controlling pressure drops. .
Are you sure? If so, the pressure on the outlet pipe of the condenser will be significantly lower than that at the inlet. Is that the case on site? Is there anyone from on-site production who can come and check it?
Normally, the pressure at the outlet of the condenser is indeed lower than that at the inlet. This is mainly because heat is released when steam condenses into water inside the condenser, resulting in a decrease in pressure. Furthermore, draining the condensate from the high-pressure side to the low-pressure condensate piping network through a steam trap also causes a certain pressure drop. This situation is common in on-site production; if more specific confirmation is needed, you can consult the relevant equipment operators. .