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Home Service FAQs FAQ of gas-fired(oil-fired) boilers What Are the Structure and Working Principle of Gas Boilers?

What Are the Structure and Working Principle of Gas Boilers?

18 Jul 2025

Against the backdrop of energy conservation and clean energy promotion, gas boilers have become essential thermal equipment across industries due to their high efficiency, eco-friendliness, and intelligent features. For enterprise users considering gas boilers, a thorough understanding of gas boiler structure and working principle aids in scientific selection and efficient operation. This article systematically introduces gas boiler structure and working principle using ZOZEN Boiler’s WNS and SZS series as examples, analyzing their practical advantages.

I. Basic Introduction to Gas Boiler Structure and Working Principle
Gas boilers utilize clean fuels such as natural gas and liquefied petroleum gas. Their structure typically comprises the boiler body, combustion system, control system, safety accessories, and water circulation system.

Boiler body: Core components include furnace chamber, smoke tubes, water-cooled walls, and steam drum.

Combustion system: The burner ensures thorough mixing of gas and air for efficient combustion.

Control system: Manages boiler start-stop, temperature/pressure regulation, and safety protections.

For details on ZOZEN gas boiler structure and working principle, contact online customer service.

II. Structure and Working Principle of WNS Series Gas Boilers
ZOZEN’s WNS series adopts a horizontal internal combustion wet-back design with a compact layout. Key features include:

Fully corrugated furnace and high-efficiency threaded smoke tubes → enhanced heat transfer efficiency.

Staged-regulation burner ensures precise gas-air ratio → achieves high-efficiency, low-NOx combustion.

Automated control system monitors real-time operation → guarantees safe and stable performance.
Applications: Food, chemical, heating industries requiring high steam quality and thermal efficiency.

III. Structure and Working Principle of SZS Series Gas Boilers
The SZS series is a D-type, twin-drum, vertical water-tube boiler featuring:

Full-membrane water-cooled walls and convection tube bundles → improved heat transfer and sealing.

Advanced low-NOx burner → complete combustion and cleaner emissions.

Micro-positive pressure operation → prevents flue gas leakage.

Intelligent control system → enables fully automatic operation and smart alarms.
Applications: Large/mid-sized industrial plants and central heating systems requiring high-capacity steam/hot water.

IV. Gas Boiler Structure/Working Principle and Practical Applications
Reasonable gas boiler structure and working principle directly impact operational efficiency and economy. WNS and SZS series excel in structural optimization, combustion efficiency, and energy savings, meeting diverse thermal demands. Their design also ensures operational simplicity and easy maintenance.

V. Why Choose ZOZEN Boiler?
Aligned with gas boiler structure and working principle, ZOZEN continuously improves product design, manufacturing, and after-sales service. Both WNS and SZS series win user recognition through scientific structures and reliable working principles.

Conclusion
Understanding gas boiler structure and working principle enables enterprises to select suitable equipment scientifically. ZOZEN Boiler commits to technological innovation and high-quality service to support energy-efficient operations. For further inquiries, consult ZOZEN’s professional team.

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