The problem with non-condensable gases in steam? !
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Because air is dissolved in water, it remains in the steam when it is formed. Therefore, when steam is in use, especially during condensation, air escapes. If there are dead corners in the heat exchanger, air will accumulate there, affecting heat exchange. But what I’m thinking is, in the case of a shell-and-tube heat exchanger, if I arrange the baffle plates with their openings facing vertically, the escaping air will naturally be carried away; so how could air accumulate? I seek advice from experts!
How is it called when the baffle has its openings oriented vertically? ?
Gases generated by material reactions may also be present.
It may be that the flow rate of the condensed water is low, or the tube is in a half-empty state, leaving insufficient water to carry away the air. As designed, condensate flows at the bottom of the steam heat exchanger, while there is an exhaust valve at the top to periodically discharge non-condensable gases
I’m really too stupid; I didn’t understand what you meant. Please draw a diagram
In heat exchangers, the baffle plates can have openings that are horizontal or vertical.
A heat exchanger, not a reactor – where does any reaction come from?
It is difficult to place the outlet pipe at the top; air will accumulate in the space above the pipe
It should be the gas produced by the reaction of the materials.
A heat exchanger is also a possibility; water vapor can react with iron to produce hydrogen.