Boiler is an important part in the social production field. The boiler production should be more scientific and professional. Welding is a very important step in the production of boilers and welding technology in the boiler manufacturing process is also related to other manufacturing industries in any country. ZOZEN has always encouraged the front-line welding workers to improve their skills and quality to improve the welding technology of ZOZEN Boiler.
The 6S site management is a prerequisite for enterprises to carry out other work, and it is also the basis of quality management. ZOZEN continues to implement the 6S site management on the production site by following the Seiri, Seiton, Seiso, Seiketsu, Shitsuke and Security principles to ensure a clean, tidy and order production environment and lay a solid foundation for the stability of product quality.
This year is the quality management improvement year of ZOZEN Boiler. In order to strengthen the quality improvement awareness of employees at the production lines and comprehensively improve the product quality, ZOZEN basic design department decided to conduct the knowledge training for the production department based on the basic product knowledge and different types of product manufacturing technology. The purpose of this activity is to enable every employee involved in the boiler manufacturing to proceed from the overall situation, correctly and deeply understand the importance of product quality, and provide every customer with high-quality ZOZEN product.
The ZOZEN 4 tph WNS series gas-fired steam boiler adopts the large-diameter corrugated furnace, which increases the heat transfer surface, reduces the thermal stress and improves the boiler safety. Meanwhile, in order to reduce the heat loss due to exhaust gas and operating costs, ZOZEN also installs the energy-saving equipment at the end of the flue gas duct to ensure boiler's thermal efficiency reaches 98% and above. What's more, WNS series boilers also have the characteristics of fully automatic intelligent control and easy operation to ensure boiler's long-term, safe and stable operation, so they are well received by users at home and abroad.
ZOZEN WNS series gas-fired and oil-fired boiler is equipped with the advanced condenser, which is a kind of flue gas waste heat exchanger whose working principle is the same as the economizer at the end of the coal-fired boiler. After a condenser is installed at the end of the boiler's flue gas duct, the high-temperature flue gas passes through the flue gas duct and the condenser at the same time, which can heat the water in the condenser, increase the feed water temperature and lower the exhaust gas temperature to achieve the goals of saving fuel and improving the thermal efficiency.
The welding of horizontal fixed tubes is to weld the tubes which are put in the horizontal or nearly horizontal position. This kind of welding includes three spacial positions: upright, vertical and horizontal (all-position), which puts forward high requirements for the welding technology. Facing the difficulties brought by welding appearance requirements, curvature of tube joint, and small tube diameter, ZOZEN workers are skilled in welding to ensure the welding quality to effectively extend the service life of boilers.
Affected by the global COVID-19 conditions, many enterprises change their offline business to online business. To solve the problem of communicating with overseas customers, ZOZEN Boiler has purchased a complete set of video conference equipment to keep a smooth communication with overseas customers. Recently, ZOZEN Boiler has organized a video conference with a Korean customer about the circulating fluidized bed boiler project. ZOZEN's general manager Zhang, sales vice general manger Liu, boiler designer Yang and domestic sales manager Wang attended the conference.
ZOZEN YQW series horizontal thermal oil heater adopts multi-loop coil structure with good safety performance and sufficient heating surface. Meanwhile, ZOZEN Boiler can also design the waste heat recovery system for users to ensure that boiler's thermal efficiency can reach 95% and above. What's more, automatic control system also ensures the safe and stable operation of thermal oil heater to realize the sustainable high-temperature and low-pressure heating supply. In addition, ZOZEN’s gas-fired thermal oil heater is equipped with advanced low-nitrogen burner to ensure that boiler's NOx emission is lower than 30mg/Nm3 to achieve the excellent performance in environmental protection.
