The 1 to 20 tph 13 bar fire tube steam boiler is a pot shell type full wet-back down-flow three-way smoke and fire tube structure, the flame in the large combustion chamber micro-positive pressure combustion, fully extended, low combustion heat load, high combustion thermal efficiency, effectively reduce the exhaust temperature, energy saving and consumption reduction, the use of more economical, the use of waveform furnace gall and threaded smoke tube structure, that is, to improve the heat absorption strength of the boiler, but also to meet the need for heat expansion of the heat transfer surface, scientific and reasonable, durable.
Most WNS gas-fired steam boilers are internal combustion type, equipped with a variety of combustion equipment such as chain furnace, oil furnace and gas furnace, etc. There is a flexible waveform fire barrel in the barrel, and the chain grate is set inside the barrel. The left’ right side of the barrel and the upper part of the barrel are arranged with flue tubes; the barrel and the flue tubes are immersed in the water volume in the barrel, and the upper part of the steam boiler is about 1/3 of the steam volume, and the inner wall of the barrel above the grate is the main radiation heating surface, while the flue tubes are convection heating surfaces.
Horizontal fire tube steam boiler flue gas in the boiler is three return flow, so it is also called a three-return steam boiler. After combustion, the flue gas flows in the reverse direction in the fire, the first return for the flue gas, and the flue gas flows to the front of the furnace through the left and right flue pipe after the smoke box guide, the second return. Flue gas to the front flue box collection, into the upper part of the fire barrel pipe backward flow, that is, the third return, and finally by the coal conservator by the induced draft fan exhausted into the chimney.
Gas fire tube steam boiler is a gas fuel such as natural gas, liquefied gas, city gas and other gaseous fuels as fuel, the heat released from the combustion in the furnace to heat the water in the pot and make it vaporize into steam heat conversion equipment. The water in the pot is continuously heated by the energy released from the combustion of gas fuel in the furnace and the temperature rises and produces steam with pressure. As the boiling point of water rises with the pressure, the pot is sealed, the expansion of water vapor in it is restricted and the pressure is generated to form thermodynamic force, strictly speaking the water vapor of the boiler is water in the barrel of the pot is heated to saturated water at constant pressure and then vaporized to form, as an energy source widely used.
Wuxi Zhongzheng Boiler Co., Ltd. was established in 1988. Located in Wuxi City, Jiangsu Province, we are one of the first companies in China to obtain a boiler manufacturing license. We have a Class A license for boiler manufacturing, a Class D license for pressure vessels, and certifications for boiler installation, commissioning and repair. We are a high-technology company integrating production, design, engineering and service of steam, hot water and thermal fluid (thermal oil) boilers for gas, oil, coal, biomass, wood and solid waste.
