ZOZEN WNS series boiler uses advanced low-nitrogen combustion technology, which can realize ultra-low emission of NOx, and make the NOx content in exhaust less than 30mg/Nm³. The WNS series oil-fired boiler adopts corrugated furnace design and high-efficiency heating element threaded smoke tube, which improves the heat transfer efficiency of the boiler.
In order to meet the production demand, ZOZEN Boiler introduces the automatic stainless steel sheet metal grooving machine. The grooving machine can groove stainless steel sheets and other metal plates in V-shape, which makes the edge arc radius of the bent workpiece extremely small, and meets the needs of decoration in boiler outer packaging.
ZOZEN Boiler is a leading manufacturer of industrial boiler in China, with more than 30 years of boiler manufacturing experience, ZOZEN Boiler has developed several kinds of industrial boilers with good performance and high quality. ZOZEN Boiler owns the advanced production base in Wuxi, China. Welcome to pay a visit to our production base, we also provide the live streaming service for visiting online.
During the assembly process of ZOZEN WNS gas-fired boiler, the workers will assemble the threaded smoke tube produced in batches one by one according to the specifications. Then, the professional welder completes the automatic welding of the tube sheet.
ZOZEN Boiler is a professional manufacturer of industrial boilers, with the good reputation in the market, ZOZEN Boiler has received many oversea orders. Although the COVID-19 pandemic blocked the face-to-face meeting, ZOZEN Boiler has set up the live-streaming and online service to provide all the services. You can learn more details on the cases on our website.
The excellent quality of ZOZEN Boiler comes from every working procedure. A convection tube bundle consisting of thousands of tubes is arranged between the upper and lower drums of SZS gas-fired boiler, and each tube should be welded with the drum with high quality to ensure tightness and no leakage. In this part of the work, it requires a large amount of welding with strict requirements, and the welding operation condition is tough. However, the employees of ZOZEN frontline cooperate with each other to ensure the efficient and orderly welding of convection bank tubes.
Heat treatment is an essential part of the manufacturing process, involving heating a metal or alloy to a specific temperature and then cooling it to harden the material. In the manufacturing process of boilers, the following pressure components require post-weld heat treatment: alloy steel pressure components and carbon steel pressure components which include butt joints with wall thickness greater than 30mm, the cylinders of internal combustion boilers, and T-joints with tube sheet wall thickness greater than 20mm. As a professional industrial boiler manufacturer, ZOZEN Boiler always strictly follows the boiler safety technical specifications to conduct heat treatment on specified boiler components, which effectively reduces the residual stresses in the material that have been introduced by welding and improves the boiler performance.
ZOZEN SZS series steam boiler is a kind of D-type chamber structure boiler with longitudinal double drums. It has a big combustion chamber equipped with the low emission burner to effectively reduce the NOx. It also adopts the full membrane tube wall structure and pressurized combustion without smoke mixture.
