Cones, design

Figure 4-139. Roller bit cone design features. (Courtesy Canadian Association of Oilwell Drilling Contractors.)...

The basic rangeability of this meter is the same as that of an orifice plate (3 1), but if two (a high span and a low span) transmitters are used, and the flow element is accurately calibrated over the complete flow range, it can be increased to 10 1. This performance can be obtained from all properly calibrated d/p flow elements, not just from the V-cone design. The V-cone flowmeter should be installed horizontally so that the two pressure taps are at the same elevation. This guarantees that the d/p cell will detect a zero pressure differential when there is no flow. 

In a nozzle discharge centrifuge, the bowl is a solid, two-cone design. Orifices are located along the maximum diameter to allow solids to flow continuously. Liquid loss must be minimized and orifice sizes are therefore closely matched to the solids capacities. Thickened solids can be recycled to satisfy nozzle flow to maintain a dry effluent. This also circumvents plugging when using larger than usual orifices. 

Figure 2-1 c. Combined shell/cone design for stiffened shells. 

Figure 9.1 depicts a combustion flame and typical morphology of a Mg/PTFE (polytetrafluoroethylene) flame. The luminous cone designated a is dominated by continuum radiation and both fluorocarbon species. The outer aerobic combustion zone b is less optically dense and shows mainly molecular radiation of MgF, MgO, C2, CO and CO2. 

The junction of cones-to-cylinders must always be considered as part of the cone design because of the large stresses that occur there. By referring to Fig. 6.15, the force Ns at point 0 was found in Example 6.7 to be... 

These heads shown in Fig. 9. e and / are used in hoppers and towers as bottom end closures or as transition sections between cylinders with different diameters. The cone-to-cylinder junction must be considered as part of the cone design due to the high unbalanced forces at the junction. Because of... 

Features Effective at low cones. designed for use in aq. systems to prevent and suppress foam 0% VOC... 

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