Web1 feb. 2011 · Usually trays have downcomer capacity problems in hea vy foaming service. 2. Trays have higher pressure drop than structured packing column . 3. Trays have a high resistance to corrosion . 4. WebMultiple downcomer trays are characterized by a very short liquid flow path between the point at which the liquid first falls on the tray and the point at which the liquid exits the tray via...
Tray design for high load applications - DigitalRefining
WebA thorough understanding of downcomer flooding mechanisms in a wide variety of services is critical to successful application of high performance tray technology.Advanced … Web17 apr. 2024 · downcomers both fit within a given column cross section, they both must be proportioned to allow for adequate vapour and liquid handling capabilities. As a result, tray design for maximum capacity is a trade off to accommodate the vapour and liquid flows. If the downcomers are too big, then the deck’s active bubbling area will mayfield engineering services
Sulzer Plus tray technology Sulzer
Web19 sept. 2024 · The downcomer is a device for transferring the liquid phase downward to the next successive tray but is sealed by such liquid against the vapor passage upward. In the downcomer, the vapor separates from the froth, leaving a pool of disengaged liquid in the downcomer below the level of the active tray surface. Web• better turndown than sieve trays, • more rigid tray deck, and • a tray deck which is less prone to fouling than sieve trays or valve trays with movable elements. The Downcomer A special downcomer bottom plate (Fig. 2, patent pending) has been developed in order to achieve a uniform flow over the tray deck, similar to plug flow. WebThe redirecting baffle is provided in the downcomer and extends above the tray to capture fluid flowing horizontally off of the tray (e.g., exiting from a weirless or weir interface) and into a preferably concave upper portion of the redirecting baffle for controlling and redirecting the high momentum flow into and through the downcomer. A ... hersyrian