Pressure Vessel Design

An Example of A Horizontal Pressure Vessel

The meaning of pressure vessels is closed containers in which liquid or gas can be placed and kept in them. There are pressure vessels of different sizes and various shapes, and they are manufactured for different purposes. The commonly used model has the form of a horizontal elongated cylinder. These closed containers are generally designed to be used at different pressure ratios than air pressure. In addition, the operating temperatures of these systems also vary.

Excessive pressure is dangerous. The explosion of pressure vessels during their production or operation can cause very serious damage or injury. Therefore, the production of pressure vessels is carried out in accordance with the system, the design of which will be used. In order to avoid such accident situations, you can contact YENA Engineering, which provides fast and high-quality service.

Types of Pressure Vessels

  1. Process containers (storage tanks) are designed for holding and storing liquids and are widely used in oil and gas plants, refineries, gas works and various production facilities.
  2. Autoclaves are one of the fairly large containers that operate under pressure and at high temperatures. They usually have a horizontal cylindrical shape, as they are able to safely withstand high pressure. The autoclave is placed and the materials are kept in it, then its lid is closed and the process is started.
  3. It is one of the most durable pressure vessels on the market with the highest resistance to corrosion, temperature and pressure, capable of working even under the heaviest loads. High pressure vessels are mostly made of stainless steel because they can meet the needs of the industry.
  4. A boiler is one of the sealed pressure vessels used to heat liquids, especially water. These heated liquids are used for cooking, electricity generation, central heating, water heating and many other purposes.

Selection of Materials For Pressure Vessels

The range of materials used in pressure vessels is very wide, and some of them are:

  • Carbon steel
  • High duty bolting material
  • Carbon manganese steel
  • Non-ferrous materials
  • Low alloy steels
  • High alloy steels

The choice of material used in pressure vessels varies depending on the shape of the pressure vessel, its dimensions and what it will be used for. YENA Engineering is made by expert engineers, choosing the right and high quality for you.

Pipe Spool on a Tank
Pipe Spool on a Tank

Pressure vessel design is carefully carried out by engineers who have extensive knowledge of pressure vessel design tips and application knowledge. However, not all pressure vessels work as designed, and many of them need to be repaired or replaced before the nominal service life is reached. Pressure vessels that are exposed to unexpected stress conditions and are designed incorrectly do not have a very long service life. There are a number of steps to be taken by pressure vessel designers to prevent such problems. Except for these, you can read the article published by YENA Engineering for all the tips about pressure vessels.

  • Process Parameters: The design information documentation should contain information about the purpose of using the pressure vessel and its requirements. Therefore, it is necessary to carefully read the information and find solutions to these problems if there are incomprehensible problems. The designer should be fully aware of unusual process conditions, in particular, extreme temperatures, changes in pressure and chemical concentrations. For example, unexplained corrosion or cracking may occur due to unexpected process changes, you should be aware of these issues.
  • Various Nozzle Loads: Quality nozzle design and production is very important for long-lasting operation. In the design of pressure vessels, the October loads that the corresponding pipes exert on the nozzles must always be taken into account. This will contain information about how the pipe is supported and how to adjust the movement that occurs due to the expansion and contraction of the pressure vessel and surrounding pipes due to the thermal cycle. This reduces the occurrence of cracking around the ends due to the stretching of the inelastic and heavy pipe.
A Pressure Vessel With Different Design Parameters
A Pressure Vessel With Different Design Parameters
  • Building Materials: Customers often indicate their preferences for the material used to manufacture pressure vessels. These options will range from materials that reduce production costs to expensive materials that are good-looking and resistant to corrosion or weathering. While it is accepted that the material must be suitable for application, it is important to keep it low in cost. When choosing a material, it is necessary to take into account the expected corrosion rate, the maintenance costs of internal and external protective coatings, and the risk of stress corrosion cracking, the cost of which may increase further.
  • All Factors Must Be Taken Into Account: When preparing a design for a pressure vessel, it is imperative to take into account all external factors that may affect the pressure vessel. Also, designers should carefully review the characteristics they have received to ensure that the critical information provided can significantly affect the service life and reliability of the pressure vessel.

Manufacturers often need to maintain a system for in-depth identification of materials used in construction, so that all materials in the finished pressure vessel can be traced back to their source. Rollers or dome structures are processed hot or cold, depending on the material, thickness and size of the finish. The standard specifies the permissible installation tolerances. These tolerances limit rounding stresses and misalignment.

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