| 摘要 |
<p>Evaporator of the type which condenses a vapour usually steam, to provide heat to vaporize and thus concentrate solns. partic. in the food and chemical industries. Metal plates are welded to form heat-exchanging circuits with domes pressed into the plates to extent into one circuit only, pref. the circuit handling the vapour, to be condensed. Higher, thermal efficiency than the vertical tube bundle evaporator.</p> |
