“uses of steam boiler”- related faq

In a water tube steam boiler, unlike a fire tube, water circulates inside the tubes. The heat that is generated and the combustion gases that surround the tubes heat the water that circulates inside them. Many water-tube boilers operate according to the principle of natural water circulation. The capacity of this type of boiler can be enhanced by increasing the number of tubes in the boiler.

The pressure of the steam is directly related to its temperature. So process temperature will require steam used to be at a specified pressure. For example, a process requires that needs temperatures at 150°C will require steam delivered at 6 Kg/cm2 or higher.

Chemical industry: polymerization, condensation, distillation, rectification, concentration, evaporation, and melting.Petrochemical: synthesis, reaction, distillation, rectification, heating, heat preservation, storage tank heating, heavy oil heating.Oil grease: oil decomposition, deodorization, fatty acid distillation, heating, hydrogenation reaction, esterification.Plastic rubber: hot pressing, calendering, extrusion, vulcanization molding.Leather industry: artificial leather processing.Textile printing and dyeing: heat setting, drying, baking, evaporation, melting.Chemical fiber: polymerization, melt spinning, weaving machine processing, molding, thermosetting, stretching, drying.Paint: paint baking, drying, high temperature solid melting, home appliances, vehicle baking paint, painting.Automotive aircraft: painted baking, drying, thermoforming, high temperature bonding.Wood processing: hot pressing, drying, wood processing and wood products (materials, furniture), wood-based panels

(Question details) Specific performance:The wall thickness of several boiler tubes was significantly reduced in a large area, the remaining wall thickness was 2.0mm, and some furnace tubes were corroded and worn out. Furnace tube wall is covered with a thick layer of uneven scale, the surface of the scale is brick red and black, scale layer is loose, and it is easy to remove the inner wall of the furnace tube, after removing, the furnace tube wall covered with a layer of corrosion pits. There is a thin layer of brick red corrosion on the outer wall of boiler tube, some of which are attached with black adhesive. Answer: Fault reason:1. The boiler is seriously short of water.2. Poor water circulation and uneven combustion.3. The unqualified quality of the boiler water and undemanding chemical supervision make the inner wall of the pipe corrode and scale, causing the pipe overheat and reduction of the strength.4. Due to the presence of impurities and scale, the furnace tube is blocked ins