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.
ZOZEN Boiler is an enterprise specializing in the production of industrial boilers. Its thermal oil heater is divided into YQW series horizontal oil-fired and gas-fired boiler, YQL series vertical oil-fired and gas-fired boiler and YLW series coal-fired boilers. According to different biomass fuels, ZOZEN Boiler has designed different grate widths, lengths and air distribution systems, and the system is combined with different front and rear arch designs, to ensure that different fuels can be burned stably and fully.
In order to improve employees' awareness of safety in production, ZOZEN Boiler has adopted a safety education system, which is divided into three levels: factory level, workshop level and team level. At the daily team meeting, the team leader takes safety production as an important meeting content to publicize, further clarifies the responsibility for safety production, to improve the safety awareness and sense of responsibility of employees, and to avoid accidents in production. Welding in limited space is a common work environment for ZOZEN workers. Therefore, the frontline workers will dress well with the protection masks and long-sleeve overalls.
ZOZEN full-automatic circular saw machine is mainly used for cutting steel pipes before bending. This full-automatic circular saw machine adopts automatic control, and the operator only needs to input the parameters such as material size and processing quantity, and the system will automatically adjust the complex parameters such as saw blade speed and feed rate (cutting speed) per tooth , to automatically produce the required steel pipe parts.
ZOZEN YLW series biomass-fired chain grate thermal oil heater is favored by Indonesian customers because it has the features of high temperature and low pressure, precise temperature control and high quality. Heater proper and chain grate are transferred separately. The video shows the heater proper is on the delivery. YLW series thermal oil heater adopts the square coil structure to realize high safety and sufficient heating surface.
An air preheater is used to preheat the fuel which further increases the boiler efficiency. It is designed to heat air before another process by extracting the waste heat from the flue gases leaving the boiler to effectively reduce the flue gas temperature and improve the thermal efficiency.
Welding is a vital work in the process of boiler manufacturing, and it has an important influence on the quality of the boiler. In the production base of ZOZEN Boiler, a professional boiler manufacturer, the front-line welders always ensure the quality of the boiler welding seams with their superb technology and responsible attitude. At the same time, ZOZEN Boiler has introduced the advanced welding equipment to realize the welding automation of the main components such as drums, membrane walls, serpentine tubes, steel frames, etc.
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.
