Cones, design notes

Fig. 10.1. Some common high-pressure tank fittings. The seal in the top three fittings is made by contact between the nipple in the connection and the seat in the outlet. Note the cone-shaped, round, and bullet-shaped nipples for (a), (b), and (c) respectively. The bottom connection (d) is sealed by means of a flat soft-metal gasket. Never attempt to mix outlet and connections between the various designs. Note the grooves on the connection nuts for connections (b), (c), and (d). This groove indicates a fitting with left-handed threads. (Reproduced by permission of the copyright holder, Mathe-son Gas Products, Inc.)...

Cone splitter, as shown in Fig. 25, used in general injection applications for up to 8-way splitting and claimed (Hilbert, 1982) to achieve 10% accuracy in splitting. It should be noted that such figures depend more on the design of the pipe branches downstream of the splitter, rather than the splitter itself. 

Finally, an agglomerator design combining features of both the inclined disc and the horizontal drum should be noted. This machine, known as a cone pelletizer, is described in Fig. 3.17 and Table 3.4. As the name implies, the vessel is in the form of a truncated cone and the scraped inner surface has a bowl-like shape as build-up takes place during operation. The cone... 

Also shown in Figure 22.8 is the pop-plot run distance versus pressure. Note that the minimum diameter for which detonation could be achieved at any given pressure is approximately equal to the ideal run distance at that pressure. Good design practice is to midce sure that detonation is always achieved within the constant pressure cone. Therefore, flyer diameter should always be equal to or greater than twice the run distance. 

The container design combines three geometries as noted in Fig. 7.43b. The top hemisphere joins a cylindrical section at the equator. The cylindrical section is joined to the cone section via a knuckle transition. The shape results from a desire to reduce stresses both in the tank and in the hull of the ship. These ships are capable of transporting over 125,000 m of LNG with each shipment. 

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