Boiler header is a kind of large-diameter pipe connecting several heating surface pipes. It is made of seamless steel pipes with welding heads at both ends, and there are many pipe holes on the header body for welding or expanding pipes. The boiler header collects or distributes the steam-water working medium, to reduce the transmission connecting pipes of working medium and the number of tappings in the drum, which can improve the safety of the drum.
The shipment of ZOZEN YQW series thermal oil heater for Ningde New Energy Co., Ltd. Equipped with an advanced burner, this series of boiler can realize fully automatic operation, including automatic combustion, automatic adjustment of the liquid level of the expansion tank, outlet temperature, flow rate and automatic protection. Meanwhile, the PLC control system is easy to operate. Various kinds of settings can be completed through the intelligent man-machine interface.
On Christmas Eve 2019, General Manager Mr. Zhang Guoping signed an agreement with Shir Baz Kaminzada, CEO of Baheer group from Afghanistan on the papermaking steam boiler project and established a friendly and cooperative relationship. ZOZEN took another firm step towards the internationalization strategic goal! The heating and dissolving, machine shaping, black slurry concentration and squeeze drying of the chemicals in the pulping process all require heat sources, so the boiler is the main driving force for the production of the paper mill.
SZS series boiler is designed with longitudinal double drums and " D " type chamber structure. Furnace is placed on the right and convection tube bank is on the left, super heater is arranged at convection tube bank. 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 water cooling tube wall. Furnace and tube bank are totally separated by the membrane water tube cooling wall at the left side of the furnace. The back part of bundle 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 fine coil economizer and condenser, and finally is discharged to atmosphere through chimney.
The processing accuracy and welding quality of the tube sheet directly affect the operation safety of the boiler. ZOZEN imported the CNC high-speed plane driller to greatly improve the pipe hole processing precision and the surface finish of the hole, creating favorable conditions for the subsequent expansion process.
