As global industries continue to pursue cleaner and more efficient energy sources, the oil boiler system remains one of the most widely applied thermal energy solutions across manufacturing sectors. Designed to deliver stable and controllable heat, oil-fired boilers provide an efficient way to convert fuel energy into steam for industrial production processes. They are particularly valued in industries where precision, stability, and reliability in steam supply are essential — such as food processing, pharmaceuticals, chemicals, packaging, textiles, and building materials.

Among the many global suppliers in the industrial boiler field, ZOZEN Boiler has established a strong reputation for providing customized, energy-efficient, and reliable oil boiler system solutions. With decades of experience in thermal energy equipment manufacturing, ZOZEN offers advanced engineering support, robust quality control, and full after-sales service. Its product portfolio includes a variety of steam and thermal oil boilers designed to meet different industrial applications, among which the WNS series oil and gas-fired steam boiler is one of the most representative and proven systems.

ZOZEN WNS Series Oil and Gas Steam Boiler: Advanced Technology and Stable Performance

Structurally, the WNS boiler adopts a horizontal internal combustion design with a large-diameter corrugated furnace. This configuration enhances the heat transfer surface area and promotes effective flue gas disturbance, ensuring thorough fuel combustion. The large furnace volume allows for a longer flame residence time, improving thermal efficiency and reducing unburned fuel loss. The furnace is made from high-strength steel plates capable of withstanding thermal expansion and high-pressure operation, ensuring durability under continuous industrial use.

To further increase efficiency, the WNS oil boiler system is equipped with threaded smoke tubes that serve as high-efficiency heat transfer elements. The smoke tubes optimize the heat exchange between the flue gas and the boiler water, reducing exhaust heat loss and increasing the system’s overall thermal performance. When paired with an economizer and condenser, the boiler can recover latent heat from exhaust gases, pushing the total thermal efficiency to over 98%, depending on working conditions and fuel composition.

ZOZEN 2 ton WNS oil boiler system

On the environmental side, ZOZEN incorporates internationally recognized low-NOx burners into its WNS series. These advanced combustion systems achieve full mixing of air and fuel at lower flame temperatures, thereby reducing nitrogen oxide emissions to within 30 mg/Nm³. The boiler’s wet-back structure with full water cooling ensures uniform heat distribution, minimizes thermal stress, and prevents hot-spot corrosion, further extending service life.

The control system of the WNS oil boiler system adopts a fully automated PLC platform, allowing real-time monitoring of parameters such as temperature, pressure, and water level. Operators can easily manage combustion settings and steam output with a user-friendly interface, ensuring stable operation even under variable load conditions. Combined with reliable safety protection devices — including flame detectors, pressure relief valves, and interlock control — the system provides both operational safety and intelligent functionality.

From design to production, ZOZEN emphasizes integrated quality management. Every boiler undergoes hydraulic testing, non-destructive inspection, and combustion performance verification before leaving the factory. The result is a durable, efficient, and clean-burning boiler that meets the needs of diverse industrial users seeking dependable thermal solutions.

WNS Oil Boiler System Supporting Food Packaging Production

A well-known enterprise — Nanjing Yanzhenwang Packaging Materials Co., Ltd. — specializes in the production and processing of food-grade packaging materials and various plastic products. To expand its production capacity and comply with increasingly rigorous environmental policies, the company decided to replace its older, less efficient steam boilers with a modern, high-performance oil boiler system.

After evaluating several options, Nanjing Yanzhenwang selected the WNS series oil and gas-fired steam boiler from ZOZEN Boiler. This choice was driven by the system’s balance of efficiency, reliability, and compliance with low-emission standards. The WNS boiler provides a continuous and high-quality steam supply to the packaging lines, supporting multiple stages of film forming, sealing, and sterilization.

The large corrugated furnace of the WNS series ensures thorough combustion of fuel oil and natural gas, allowing the boiler to operate efficiently even under frequent load fluctuations. The advanced low-NOx burner not only reduces pollutant emissions but also helps stabilize flame conditions, ensuring clean combustion across the entire firing range. With the addition of the economizer and condenser, the system captures residual heat from exhaust gases, significantly reducing fuel consumption and operating costs.

In daily operation, the intelligent control system allows plant operators to monitor parameters in real time and make precise adjustments based on production demand. The fully automated operation minimizes manual intervention, ensuring consistent steam quality while enhancing operational safety. Since its installation, the oil boiler system has provided Nanjing Yanzhenwang with a stable and energy-efficient heat source, contributing to both production efficiency and environmental sustainability.

The successful deployment of this project reflects ZOZEN Boiler’s deep expertise in customizing solutions based on specific industry requirements. In the food packaging field, where hygiene, temperature control, and reliability are critical, the WNS boiler demonstrates the advantages of modern oil-fired technology — offering consistent steam performance, low emissions, and reduced lifecycle costs.

ZOZEN Boiler: Reliable Partner for Modern Oil Boiler Systems

In the competitive industrial heating market, selecting the right oil boiler system is a strategic decision that affects both production efficiency and environmental performance. ZOZEN Boiler, as a trusted global supplier, continues to advance its product development and service systems to meet the evolving needs of modern industry. Its manufacturing base integrates precision production lines, automated welding processes, and strict quality inspection to ensure that each boiler meets international standards of performance and reliability.

Beyond product delivery, ZOZEN provides full-cycle technical support — from system design and installation guidance to commissioning, operator training, and long-term maintenance. The company’s after-sales service network covers multiple regions, allowing rapid response to customer requirements and ensuring continuous, efficient operation of every oil boiler system in the field.

In an era defined by sustainability and technological progress, industrial users increasingly look for partners who can deliver not only equipment but also long-term value. ZOZEN Boiler stands out among oil boiler system suppliers for its integration of engineering expertise, manufacturing excellence, and professional service. Whether the goal is energy optimization, environmental compliance, or production stability, ZOZEN provides solutions that help businesses operate cleaner, safer, and more efficiently.