A method of directly heating water using steam in pipes
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As shown in the diagram, with the low-pressure steam pipeline directly heating the water in another pipeline, water hammer always occurs in the pipelines, resulting in severe vibration. I earnestly ask my friends for some advice on how to make modifications in order to eliminate these problems. Thank you! :handshake
The safest option is to use a heat exchanger, followed by a static mixer.
Given this pipe diameter, the water flow rate is also quite high; it’s basically impossible. This is simply an unscientific design – add a heat exchanger instead
Your design is way too simplistic and crude... Even the walls refuse to comply with it; P. The soda mixers we use are more sophisticated – they have vertical inlets, and a 90° elbow is required to ensure that the flow direction remains consistent. What’s more advanced is the inclusion of holes in the straight sections of the pipes, which helps improve the mixing of water and vapor.
For water-bath vaporization of another liquid medium
This post was last edited by Yu Qin on 2020-12-5 at 20:26. The way it’s shown in the image on the first floor is indeed extremely simple and crude; P I don’t know much about this either, and only now, after everyone’s explanations, do I have a rough understanding. My foundational knowledge in this field is really poor, so it’s impossible for me to grasp it right away: lol Thank you all for your advice: handshake
If the traffic demand from downstream devices varies greatly, or if there are strict requirements regarding water temperature changes. This method of using steam to heat the liquid phase results in almost no heating residence time, and the control effect is very poor. It is estimated that he used it as a copy design for a temperature-reducing nozzle; a temperature reducer injects steam after the water is atomized, with different process characteristics.
If hot water is to be supplied to a water bath, it is better to introduce low-pressure steam directly into the bath, as this avoids water hammer effects. The earliest external cooling units for catalytic slurry and reduced-pressure residue were of the water-bath type； Of course, the best approach is to introduce the heat-tracing steam condensate generated locally nearby into the water bath, which is energy-saving and environmentally friendly.
I’ve used sink types in the past where the steam pipes were made of stainless steel; these pipes had a smaller diameter, the sections in contact with water were longer, and the holes in the pipes were smaller but more numerous. This reduced vibration, though it wasn’t possible to completely eliminate it. Cavitation occurs over time with such designs
If there’s a leak inside the pipeline, that’s also quite troublesome – oil slurry will just spill everywhere