diesel fired fire tube shell boiler, ZOZEN WNS series diesel fired fire tube shell boiler introduction
What is the working principle of the diesel fired fire tube shell boiler? The flue gas produced by fuel combustion passes through the fire tubes or smoke tubes to heat the water, steam or water and steam mixture outside the fire tubes or smoke tubes. According to the flue gas passes, there is two-pass or three-pass diesel fired fire tube shell boiler. ZOZEN diesel fired fire tube shell boiler includes: WNS series diesel fired fire tube shell steam boiler and WNS series diesel fired fire tube shell hot water boiler.
1. ZOZEN diesel fired fire tube shell boiler types and parameters
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WNS series diesel fired fire tube shell steam boiler |
WNS series diesel fired fire tube shell hot water boiler |
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Capacity: 1-20 tph |
Capacity: 0.7-14 MW |
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Working pressure: 0.7-2 Mpa |
Working pressure: 0.7-1.25 Mpa |
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Thermal efficiency: Above 98% |
Thermal efficiency: Above 95% |
2. ZOZEN diesel fired fire tube shell boiler advantages
1) Simple structure, compact size, easy installation, low production and construction costs
2) Low failure rate, convenient maintenance, low maintenance and operating costs
3) The use of threaded smoke tube with high heat transfer efficiency which is independently developed by ZOZEN Boiler can extend the staying time of flue gas in the furnace to improve the thermal efficiency.
4) The use of large-diameter corrugated furnace with sufficient steam storage and heating surface can reduce the thermal resistance to ensure that the boiler can produce the high thermal power and high-quality steam with a high efficiency.
3. ZOZEN diesel fired fire tube shell boiler case
1.5 tph WNS series oil-fired steam boiler project for the food industry in Venezuela - Inversiones Goa 7 C.A
Equipment: WNS1.5-0.7-Y (light diesel oil)
Medium: Steam
Capacity: 1.5 tph
Industry: the food industry
Location: Caracas, Venezuela

The shipment of ZOZEN WNS series oil-fired steam boiler to Venezuela
In conclusion, relying on advanced manufacturing process and technical advantages, ZOZEN Boiler launches the WNS series diesel fired fire tube shell boiler and customized the diesel fired fire tube shell boiler system for users to meet the different demands by providing the one-stop service including boiler design, manufacture, installation, commissioning and training. If you have more questions about the diesel fired fire tube shell boiler, please consult with ZOZEN Boiler.
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At the production site of a pharmaceutical company in Shanghai, a ZOZEN gas-fired steam boiler commissioned in 2010 has been operating steadily for 16 years. For this established pharmaceutical company, founded in 1995, the steam system is closely related to production rhythm, process coordination, and on-site operation support. Whether the equipment can maintain stable operation over the long term directly affects the continuity of daily production. Time is a practical test, and the continuous ...07 Jul 2026 -
As the beer industry moves toward greener, more continuous, and more refined production, the steam system has become an important part of brewing operations. Recently, the cooperation case between ZOZEN Boiler and Yanjing Beer (Guilin Liquan) Co., Ltd. once again highlighted the essential role and system value of industrial boiler equipment in the food and beverage industry. Industrial Heat and Beer Brewing Are Closely Connected From a Drop of Beer, the Value of Stable Steam Becomes ClearYan...24 Jun 2026 -
Recently, ZOZEN Boiler delivered a 3-ton WNS series skid-mounted steam boiler to a stationery products manufacturer in Thailand. The customer mainly produces solid glue, crayons, oil pastels and other stationery products. During production, the customer has clear requirements for continuous and stable steam supply. Based on the customer’s process features and site conditions, ZOZEN Boiler adopted a skid-mounted delivery solution, integrating the boiler body and auxiliary equipment to suppo...16 Jun 2026
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