Drinking water treatment plants are facilities that make water from various sources drinkable and safe by using different purification methods. These facilities treat water from both natural sources (groundwater, lakes, rivers) and reservoirs through physical, chemical, and biological processes.
Stainless Steel Manufacturing Process for Treatment Plants
- Material Selection
- 304 Stainless Steel: Commonly used, corrosion-resistant, durable, and cost-effective.
- 316 Stainless Steel: Provides higher corrosion resistance, ideal for harsh conditions such as chemical processes and seawater.
- Design and Planning
- Engineering Design: Technical drawings of stainless steel equipment and structures are prepared. This stage determines the sizes, capacities, and uses of the equipment.
- CAD/CAM Software: Computer-aided design and manufacturing software are used to create precise and accurate designs.
- Cutting and Shaping
- CNC Cutting: Stainless steel plates are precisely cut with computer-controlled machines. This method ensures high accuracy and repeatability.
- Bending: Cut stainless steel plates are shaped into the desired form using specialized bending machines. This process shapes tanks and pipes.
- Welding and Assembly
- MIG/TIG Welding: Stainless steel parts are joined using high-quality and durable welding methods. MIG (Metal Inert Gas) and TIG (Tungsten Inert Gas) welding methods are commonly used.
- Welding Inspection: The quality and durability of weld seams are checked with various tests during and after welding.
- Surface Treatments
- Cleaning and Polishing: Stainless steel surfaces are made more resistant to corrosion and given an aesthetic finish.
- Passivation: Chemical treatments make stainless steel surfaces more resistant to rust.
- Assembly and Installation
- Field Assembly: Stainless steel equipment prepared in the manufacturing facility is assembled at the treatment plant.
- Connections and Testing: All pipelines, tanks, and other equipment are connected, and leak tests are conducted.
- Quality Control and Certification
- Testing and Inspection: Produced stainless steel equipment undergoes quality control tests, including pressure tests, leak tests, and structural durability tests.
- Certification: Equipment compliance with international standards is certified by independent organizations.
Applications of Stainless Steel Manufacturing in Treatment Plants
- Storage Tanks: Used for storing chemicals, clean water, and wastewater.
- Pipelines: Durable and leak-proof pipelines are created for transporting water and chemicals.
- Filter Systems: The bodies and frames of filter systems used in the water treatment process are made from stainless steel.
- Reactors and Mixers: Reactors and mixers used in chemical processes and biological treatment processes are made from stainless steel.
- Pump and Valve Systems: Stainless steel pumps and valves are preferred for their durability and corrosion resistance.
Production and Use Process of Stainless Steel Storage Tanks
Production Process:
- Design: The size and capacity of the storage tank are determined. Technical drawings and engineering calculations are performed.
- Cutting and Bending: Stainless steel plates are cut and bent to form the cylindrical or rectangular shape of the tank.
- Welding: Plates are joined, and sealing is achieved through welding. Internal and external weld seams must be smooth and durable.
- Surface Treatment: The tank’s interior and exterior surfaces are cleaned, polished, and passivated.
- Testing and Inspection: The produced tank is subjected to pressure and leak tests. Interior coatings and insulation are applied if necessary.
