The core characteristics of petrochemical equipment can be summarized in four main directions: specialized structural design, high adaptability to operating conditions, stringent safety standards, and overall large-scale automation. Specifically:
Structural Design Characteristics
Main Body is Primarily a Rotating Body: The basic shapes are mainly rotating bodies such as cylinders, cones, and spheres, resulting in uniform stress distribution, easier manufacturing, and suitability for pressure-bearing and sealing requirements.
Significant Dimensional Variations and Numerous Openings: To meet different process requirements (storage/reaction/separation), the structural dimensions of various parts of the equipment vary considerably; the shell needs to have inlets, outlets, manholes, sight glasses, etc., resulting in a large number of openings and pipes.
Extensive Use of Standardized Welded Structures: Standardized components such as flanges, heads, and supports are widely used to reduce costs and improve interchangeability; at the same time, a large number of welded structures are used to meet sealing and pressure-bearing requirements.
Operating Condition Adaptability Characteristics
Adaptability to Harsh Operating Environments: The equipment often operates under high temperature and high pressure conditions, and the media it comes into contact with are generally flammable, explosive, corrosive, toxic, and harmful. Therefore, special requirements are placed on the corrosion resistance and high temperature and pressure resistance of the materials.
High Sealing and Mechanical Strength Requirements: For flammable, explosive, and toxic media, the sealing performance of the equipment is extremely demanding. At the same time, components need sufficient strength and rigidity to withstand the process pressure.
High Requirements for Coordination and Compatibility: The entire production unit consists of multiple pieces of equipment. Reliable coordination and compatibility between the equipment, and between the equipment and pipelines, instruments, and circuits, are required to ensure continuous and stable production.