Q

Pressure vessels must comply with stringent design standards.


A
As a high-risk equipment commonly used in the chemical industry, the design and manufacturing of pressure vessels must comply with mandatory standards. Domestically, the "Safety Technical Supervision Regulations for Pressure Vessels" must be followed, while internationally, the ASME Boiler and Pressure Vessel Code is widely adopted. Additionally, pressure relief devices such as safety valves and rupture discs must be installed to prevent explosions caused by overpressure.
Q

Core components require regular maintenance to prevent potential hazards.


A
Valves, seals, and fasteners are critical components of chemical equipment. Valves regulate the flow of media and require regular cleaning to prevent clogging; seals are often made of rubber or PTFE, which can lead to leaks if aged, necessitating timely replacement; loose fasteners may compromise equipment stability, so their fastening status should be prioritized during routine inspections.
Q

Equipment and material selection must be suitable for harsh operating conditions


A
Chemical equipment often faces working conditions such as high temperatures, high pressure, and strong corrosion, making material selection the core and key factor. For instance, titanium alloys or PTFE materials are commonly used in highly acidic environments; high-strength alloy steel is frequently employed for high-pressure vessels; while carbon steel can be utilized for storage equipment under normal conditions. Additionally, non-metallic materials like fiberglass-reinforced plastic are often used to manufacture corrosion-resistant pipelines and other components.
Q

Chemical equipment has a clear core classification based on function


A
Based on core functions, chemical equipment can be categorized into five major types: reaction vessels (e.g., reactors) handle chemical reactions, heat exchangers (e.g., heat exchange equipment) facilitate heat transfer between materials, separation equipment (e.g., distillation towers) are used for purification or separation of mixtures, storage equipment (e.g., storage tanks) hold raw materials and finished products, and conveying equipment (e.g., centrifugal pumps) transport fluids or solid materials.
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