Which type of heat exchanger is suitable for conditions with large pressure changes?
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Question: There is a scenario involving the utilization of waste heat from steam: the pressure on the steam side is 3 kilograms, while the pressure on the hot water side ranges from 3 to 15 kilograms (the pressure is not constant; when it drops to 3 kilograms, a pressure pump is used to raise it to 15 kilograms, and this process repeats itself). ) For operating conditions with such a large pressure difference, which type of heat exchanger is the best to use?
Could the use of an energy storage drum be considered to recover heat? The principle behind this is to use steam to directly heat water, with the resulting steam then being sent out. Thermal recovery in steelmaking processes is just like this; it might be worth considering as a model.
Thank you for the reply. Mainly, he needs this pressurized water, rather than simple heat recovery.
It’s the same thing: heat water with steam, and then use water to heat the heat exchanger.
A regular shell-and-tube heat exchanger will do
For a regular tubular heat exchanger, a higher pressure design is sufficient; the fluids involved are water and steam, and it’s enough to prevent water hammer