Fire Tube Steam Boiler

Product Description

The basic design of a fire tube steam boiler consists of a cylindrical shell, with tubes running through it. The tubes are surrounded by the water that needs to be heated, and the flames and hot gases from the burner pass through the tubes to heat the water. As the water is heated, it turns into steam, which can then be used for food processing, printing and dyeing, pharmaceutical, packaging, and other industrial enterprises to provide production steam, medical institutions to provide disinfection steam, and to provide heating for other enterprises and hotels Provide steam and provide domestic hot water through heat exchanger heating.

Product Advantages

• Fast start

  Compared with the traditional products, the fire tube steam boiler series products have introduced a new type of enhanced heat transfer element, the heat flux density is increased, the design is compact, and the boiler water volume is much smaller than the traditional products.

• Higher thermal efficiency

  The design of industrail fire tube steam boiler adopts advanced feather tube technology to lock the overall heat absorption ratio of the furnace body. According to the characteristics of heat energy of each grade, the waste heat of the flue gas is utilized in steps to fully absorb the waste heat in the flue gas, so that the efficiency of the boiler can be maximized.

• Energy saving & environmental protection

  Fangkuai's fire tube steam boiler use software to simulate the distribution of the temperature field in the furnace, optimize the furnace structure and the layout of the convection heating surface, optimize the flame structure and the air-fuel ratio electronic adjustment of the fan, effectively reduce the generation of thermal nitrogen oxides.

• Precise water supply

  The water level alarm configured by the fire tube boiler can accurately capture the liquid level in the boiler, convert the liquid level signal into a control signal and transmit it to the control cabinet; a frequency converter is installed in the control cabinet, and the control signal is transmitted to the frequency converter to realize automatic water supply adjustment.

Technical Features

• New Heat Transfer Feather Tube

  The smoke tube of the fire tube steam boiler differs from the threaded smoke tube of the traditional boiler. According to the smoke distribution in the smoke tube, the feather tube technology and the smoke tube are combined to achieve the purpose of enhancing heat exchange while increasing the smoke resistance. controlled within a limited range. The flue gas turbulence is enhanced in the inlet section of the flue gas pipe, and as the flue gas gradually cools down, it enters the wing pipe to enhance heat exchange, and the length of each section of the flue gas pipe is set according to the flue gas distribution. Compared with the traditional boiler, after adopting the new heat transfer element of the finned tube, the heat flux density on the flue gas side increases. The exhaust gas temperature of the furnace body (at the inlet of the economizer) can be reduced from 300 degrees to about 240 degrees, which is equivalent to the furnace water temperature, saving energy. The risk of overheating and vaporization of the device is significantly reduced.

• Flue gas waste heat recovery technology

  The staggered arrangement can increase the heat exchange area, disturb the flue gas flow state, improve the heat exchange effect, and reduce the exhaust gas temperature of the flue gas waste heat recovery device. At the same time, the heat exchange surface of the spiral fin is sufficient, the resistance of the flue gas side system is small, which meets the requirements of the burner for the resistance of the flue gas, and the heat exchange part and the base pipe are extruded into one body without gaps, and the heat transfer performance is high. Compared with ordinary wound-finned tubes, the contact thermal resistance can remain stable in a larger range with temperature changes, so the heat transfer performance is more stable than wound-finned tubes within the limited tube wall temperature range.