LPG Gas Boiler Solutions for Industrial Steam Applications

An pg gas boiler has become an important option for industrial enterprises that require clean combustion, stable steam output, and flexible fuel supply. Liquefied petroleum gas burns efficiently and produces relatively low emissions, making it suitable for regions where environmental regulations are becoming increasingly stringent. For industries such as food processing, textiles, chemicals, and building materials, selecting a reliable lpg gas boiler directly affects daily production stability and long-term operating costs.

Compared with traditional solid fuel systems, an lpg gas boiler offers smoother combustion control, easier ignition, and more precise temperature regulation. The combustion process can be accurately adjusted through automatic control systems, ensuring consistent steam pressure and minimizing fluctuations during operation. These characteristics are particularly valuable for enterprises with continuous or high-intensity production demands. ZOZEN BOILER has developed mature oil and gas-fired boiler technologies that fully support LPG as a primary fuel, providing industrial users with dependable lpg gas boiler solutions designed for performance, efficiency, and safety.

Technical Features of ZOZEN SZS Oil and Gas-Fired Steam Boiler

Among the various lpg gas boiler configurations available in the market, the SZS series oil and gas-fired steam boiler from ZOZEN represents a well-established water-tube design suitable for medium to large steam capacity requirements. The SZS series adopts a double-drum, D-type layout, with the upper drum serving as the steam drum and the lower drum as the water drum. This structural arrangement promotes effective natural circulation and stable steam generation under high-load conditions.

The furnace of the SZS lpg gas boiler is constructed with membrane water-cooled walls, forming a fully sealed combustion chamber. This design reduces heat loss and improves overall thermal efficiency while enhancing structural rigidity. The membrane walls absorb radiant heat efficiently, and the optimized convection tube bank further increases heat exchange performance. Under appropriate configurations and with the integration of heat recovery equipment such as economizers and condensers, the thermal efficiency of the SZS series can reach above 98%, supporting energy-saving operation for industrial facilities.

To meet environmental requirements, the SZS lpg gas boiler can be equipped with advanced low-nitrogen burners. Nitrogen oxide emissions can be controlled to levels below 30 mg/Nm³, depending on burner configuration and local standards. The combustion system ensures uniform mixing of fuel and air, promoting complete combustion and stable flame characteristics. This contributes not only to emission control but also to consistent heat output during continuous operation.

Automation is another significant feature of the SZS series. The boiler is equipped with an intelligent control system capable of monitoring steam pressure, water level, flue gas temperature, and combustion status in real time. Automatic adjustment of fuel supply and air distribution allows the lpg gas boiler to maintain steady operation even under fluctuating load conditions. Safety interlock systems provide multiple layers of protection, enhancing operational reliability and reducing manual intervention.

With its water-tube structure, efficient heat transfer surfaces, and advanced combustion technology, the SZS series lpg gas boiler is widely applied in industries that demand stable, high-capacity steam supply within limited production windows.

Case Study: SZS 35 Ton LPG Gas Boiler for a Tomato Processing Project

The tomato processing industry is characterized by strong seasonality, with an annual production cycle lasting only 45 to 55 days. During this limited period, equipment must operate continuously at high load to meet processing targets. A tomato products company, during the construction of a new production line capable of processing 3,000 tons of tomatoes per day, clearly recognized that equipment reliability and energy efficiency would directly influence operational success. As a result, the company set strict standards for boiler performance when selecting an lpg gas boiler.

After conducting extensive evaluations and technical comparisons, the client ultimately introduced a ZOZEN SZS series 35-ton-per-hour gas-fired steam boiler for the project. The choice of an SZS lpg gas boiler was based on its water-tube design, stable steam generation capability, and adaptability to high-load operation within short seasonal production cycles.

During tomato processing, large quantities of high-temperature condensate water are generated. To address this characteristic, the ZOZEN technical team designed a customized energy-saving system for the project. By installing an air preheater and a condensate recovery device, the system significantly enhanced thermal energy utilization. The recovered high-temperature condensate was reused, reducing the demand for fresh make-up water and lowering overall energy consumption. The air preheater improved combustion efficiency by raising the temperature of incoming combustion air, further optimizing fuel utilization within the lpg gas boiler system.

In the peak production season, the 35-ton SZS lpg gas boiler operated at full load, delivering stable and sufficient steam to support processes such as heating, sterilization, and concentration. The double-drum structure and membrane water-cooled walls ensured consistent performance under continuous high-intensity operation. By combining structural reliability with energy recovery solutions, the boiler system contributed to smoother production cycles and improved cost control during the limited operating window.

This project demonstrates how a properly engineered lpg gas boiler can meet the unique challenges of seasonal industries, where downtime and instability can lead to significant production losses.

Why Choose ZOZEN LPG Gas Boiler Solutions

When selecting an lpg gas boiler, industrial enterprises must consider factors such as thermal efficiency, emission performance, operational stability, automation level, and adaptability to specific process requirements. In seasonal industries, reliability under continuous full-load operation becomes even more critical, as any interruption during the short production cycle may directly impact annual output.

ZOZEN integrates structural optimization, advanced combustion systems, and intelligent control technology into each SZS lpg gas boiler design. With thermal efficiency exceeding 98% under appropriate configurations and low NOx emission capability below 30 mg/Nm³, these boilers align with modern environmental and economic expectations. The membrane water-cooled wall structure enhances heat absorption while reducing furnace heat loss, and the double-drum arrangement supports stable natural circulation and consistent steam quality.

Furthermore, ZOZEN emphasizes customized system integration. For projects involving high-temperature condensate or specific energy recovery requirements, tailored solutions such as air preheaters and condensate recovery systems can be incorporated into the overall lpg gas boiler configuration. This integrated approach improves energy utilization and reduces operating costs without complicating daily management.

For enterprises seeking an lpg gas boiler that balances efficiency, reliability, and environmental compliance, the SZS series from ZOZEN offers a technically mature and practically proven solution. Through detailed engineering design, strict manufacturing standards, and project-specific optimization, ZOZEN provides lpg gas boiler systems capable of supporting stable industrial production and long-term operational performance.