The fire tube natural gas boiler requires high drilling accuracy, and the high temperature zone, smoke box and other key parts adopt the expansion process. Zozen Boilers deliberately introduced a CNC high-speed plane drill and a complete set of German milling cutters for tube sheet processing, which greatly improved the tube hole machining accuracy and hole surface finish, and created good conditions for subsequent processing techniques such as tube expansion. The smoke box sealing type before and after the fire tube boiler operation is a two-stage sealing structure. The raw material of the boiler is made of customized steel plate, whether it is 6 tons or 20 tons, it is stamped from a whole piece of steel plate. There is no seam process, and the manufacturing cost is lower high.
The explosion-proof device of the natural gas boiler is an overhead gravity type, and the opening pressure is constant. The explosion-proof door cover of the boiler has a double-sealed structure, which is tightly sealed. The inspection door is easy to disassemble and restore, and the personnel requirements are not high. The pressure relief area is large, and the boiler is safer. It is safe when the pressure is relieved, and the heat emitted will not hurt people. The front and rear smoke boxes of this series of boilers are tightly sealed, and the air leakage test is done at the factory to ensure no smoke leakage. The welding of the smoke box adopts surface inspection to prevent the leakage of smoke, the formation of condensed water, and the corrosion of the skin. When the boiler runs from cold to hot, it can expand and contract freely, without restraining stress, and is safer. The fire tube boiler has a good supporting and thermal insulation effect. The thermal insulation material is made of high-quality refractory fiber, the skin temperature is low, and the surface heat dissipation loss is small.
The fire tube boiler operation adopts the convection heating surface of the threaded smoke tube, which effectively improves the heat transfer efficiency of the boiler. Some harmful components such as CO2, NOX, SO2 in the flue gas of this series of gas-fired boilers are dissolved in the condensate, which effectively reduces the emission of atmospheric pollutants. At the same time, large-size furnace structure and flue gas recirculation technology are adopted. For gas-fired boilers, ultra-low nitrogen emissions can be achieved, NOX emissions ≤30mg/Nm3, which fully meets the increasingly stringent national environmental protection requirements.
The energy-saving device, condenser and boiler of this series of boilers product are arranged as a whole, fast-installed and delivered, easy to install, compact in structure and elegant in appearance. It occupies a small area and reduces infrastructure investment. The spiral finned tube and shell of the natural gas boiler energy saver and condenser are made of corrosion-resistant ND steel material, which greatly improves the service life of the equipment. The combination of intelligent combustion control and fully automatic safety chain protection system ensures economical, environmentally friendly and safe operation. This type of boiler adopts horizontal internal combustion and full wet back, high-efficiency threaded smoke pipe, equipped with a perfect insulation outsourcing design, the boiler thermal efficiency is as high as 85%, the product design is novel, the structure is reasonable, and the process performance is good, making this product outstanding quality.
Once an abnormal phenomenon occurs during the fire tube boiler operation, the combustion will be automatically interrupted and an audible and visual alarm will be issued. The boiler has complete functions, complete protection, simple operation, safe and reliable, and has a self-diagnosis function. The WNS series fire tube boiler system has a high heat utilization rate. Due to the integral installation of the modules, the operation and maintenance are convenient, and it is an ideal heating equipment that is safe, efficient and energy-saving. The boiler uses oil and gas as fuel and water as the medium. It uses heat energy to heat the water in the pipeline to form steam, so that the superheated steam reaches the required working temperature, and the steam is delivered to the heating equipment. It has a high-efficiency working temperature. And can carry out high-precision control of steam operation.