In the modern production workshop of Wuxi ZOZEN Boiler, a professional boiler manufacturer, quality inspectors are using professional ultrasonic flaw detectors to inspect the quality of the weld between corrugated furnace and boiler drum; Assembly workers are carrying out pre-expansion, full welding and re-expansion before welding, which not only prevents the crack corrosion between WNS boiler flue pipe and tube plate, but also improves the welding strength; Welding workers are welding the roller automatically.
ZOZEN longitudinal seam welding adopts advanced submerged arc automatic welding technology to ensure welding quality. After the pre-welding treatment, ZOZEN uses automatic argon arc welding technology to complete the butt welding of steel pipes, and performs X-ray real-time imaging of the welds to prevent unqualified welds from entering the next production process. The advanced automatic welding machine completes the automatic welding of the longitudinal seams under the tracking of the photoelectric system, which not only improves the efficiency but also effectively guarantees the welding quality.
SZS series boiler is designed with longitudinal double drums and " D " type chamber structure. The furnace is on the right and convection tube bank is on the left. The body is fixed on the basement by middle and both end flexible supports and make the boiler expand horizontally sideways. Around the furnace is membrane wall. Furnace and tube bundle are totally separated by the membrane wall at the left side of the furnace. The back part of convection tube bank is sparse shift structure, front part is aligned structure. Smoke from furnace outlet enters re-burning chamber, convection tube bank area, and then from left front part enters spiral fin coil economizer and condenser, and finally is discharged to atmosphere through chimney.
Steam boilers play a key role in the production process of dye intermediates, proving steam for synthesis, drying and other processes. SZS gas-fired water tube boiler adopts the structure of membrane water wall for better sealing effect and higher thermal efficiency; In addition, to effectively reduce the NOx emission, the boiler is equipped with a large volume furnace and an advanced NOx burner imported from Europe, so the NOx emission can reduce to 30mg/Nm3.
