Category Archives for Mechanical and Structural
A Comprehensive Guide to Types of Supports for Vessels
Vessels, ranging from storage tanks to pressure vessels, play a pivotal role in various industries, ensuring the safe containment and transport of liquids and gases. The structural integrity of these vessels is paramount, and their stability relies heavily on the … Continue reading
Torispherical Head
Pressure vessels Pressure vessels are specialized containers designed to hold gases or liquids at pressures significantly different from the surrounding environment. These vessels are integral components across diverse industries, including chemical processing, oil and gas, and power generation. Typically constructed … Continue reading
ASME Torispherical Head Detail Dimension for Pressure Vessel
In the design and construction of pressure vessels, various types of heads are used to ensure the structural integrity and safety of the vessel. One commonly used type of head is the torispherical head, which includes the ASME flanged and … Continue reading
Horizontal Vessels Saddle Supports and Stiffening Rings
Horizontal vessels are typically supported on two saddles. The use of two saddles is preferred both statically and economically over a system with more supports. The vessel designer should follow these steps: 1. Locate the position of saddle supports. 2. … Continue reading
Horizontal Ring Girders
Ring girders are typically used in elevated vessels when they are supported by a structural frame. The stress distribution in a ring girder is very complicated. Given a uniform load around the perimeter, the stresses and forces can be calculated … Continue reading
Vertical Vessel Lug Supports
The main design consideration regarding lug-supported vessels is the stress magnitude in the shell. Bijlaard’s method, as covered in WRC 107, is usually followed for the design. This method consists of determining the stress in the shell at the vicinity … Continue reading
Vertical Vessel Support Legs
Support legs can be made of wide-flange or pipe members. They are designed to resist axial loads, overturning moments, and lateral shear forces in the vessel. The attachment point to the vessel may cause high concentrated shell stresses which must … Continue reading
Openings in the Skirt
For skirt compression, deduct the width of openings, G (ft), around the perimeter of the skirt. The following equations take into account the shift in the neutral axis as well as the reduction in cross section. The equation for maximum … Continue reading
Vertical Vessel Skirts
The design procedure outlined here is based on cylindrical skirts. (Tapered designs are a special problem and beyond the scope of this manual.) Design of the skirt consists of determining the operating weight of the vessel and the controlling bending … Continue reading
Structural Supports
Process vessels are normally supported by one of the following methods (See Figure 400-19): • Skirts • Support legs • Support lugs • Ring girders • Saddles Skirts are typically used for vertical vessels because they are the most economical. … Continue reading