Noviter NSTB steam boiler


Noviter NSTB steam boiler

product description

Noviter NSTB steam boiler





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Noviter NSTB steam boiler




Noviter NSTB steam boilers are designed to produce either superheated steam or saturated steam. It is a single-drum natural circulation boiler, the furnace is a membrane wall structure, convection tube bundle is also surrounded by a membrane wall.

Every Noviter NSTB-type steam boiler is tailor-made for customers and the company can produce NSTB steam boilers with a designed evaporation capacity of 20 to 200 t / h according to customer's special needs. The fuel is liquid or gas fuel. The general situation Under the design pressure up to 4MPa, can also design a higher pressure boiler.

The company uses the most advanced design tools and combines many years of traditional boiler design experience to produce a good quality and reliable steam boiler.

In order to reduce the cost of boiler auxiliary equipment and benefit the use, maintenance and start of the boiler, the NSTB steam boiler has a single burner arrangement under the capacity of 80t/h.

In order to make full use of all the available energy and improve the thermal efficiency of the boiler, nuvette set up an economizer (economizer) on the basis of fuel analysis and various calculations at the outlet of the boiler.

All three dimensional computer aided design and calculation

Thermodynamic calculation, calculation of smoke wind resistance, hydrodynamic calculation and calculation according to the new computational fluid mechanics of heated wall temperature (CFD) and numerical heat transfer (NHT) principle, using the international advanced FLUENT software, the accurate calculation of the temperature of each point in the furnace, the combustion products and the distribution of heated wall temperature distribution, in order to reasonable the guide arrangement of heating surface, the heating surface is heated evenly, to extend the service life of the boiler and save steel; The picture on the right shows the result of three-dimensional computer simulation of the static pressure distribution in boiler header with Noviter's technical experts using FLUENT 5.0 software.

The world's first vertical top-blowing arrangement

Novit NSTB steam boiler adopts vertical structure and relies on ground support, so it has compact structure and small area. At the same time, there is no complex pipeline system and support system, which is convenient for the installation and maintenance of the boiler. The burner is located at the top of the furnace, making the flame full of the furnace, reducing the dead angle of the flue gas, improving the thermal efficiency, and ensuring the reliability of the water cycle.

Full Membrane wall Structure

Because the membrane type water wall structure is adopted in the furnace, the radiant heat from the flame can be fully absorbed, and the sealing performance of the furnace can be improved. Meanwhile, because the furnace wall is not directly affected by the flame radiation, it can be used without fireproof materials. The convection tube bundle is surrounded by membrane water wall, which makes the sealing of the convection tube bundle good. Therefore, the weight of the furnace wall is greatly reduced and the workload of on-site installation and commissioning is reduced.

Powerful low-emission function

In terms of combustion technology, the NSTB steam boiler uses the world's advanced low NOx burners, using the latest grading air distribution and flue gas recycling technology, which greatly inhibits the transformation of nitrogen in fuel to NOx during combustion. At the same time, the large furnace structure reduces the heat load of the whole furnace volume, and makes the temperature level in the furnace lower, which inhibits the change of nitrogen to NOx in the combustion air.

Large range of load regulation

Carefully designed and equipped burners and reasonable radiation and convection heating surface area distribution enable the boiler to operate stably in a wide load range and output qualified parameters of steam.

high degree of automation

The blowing, ignition and output power adjustment of the burner; Boiler effluent temperature, pressure, flow and other output parameters of the detection, adjustment; As well as the protection and interlocking of the boiler, such as the failure of the ignition, the overlimit of the main thermal parameters and so on, are automatically completed, and it is stable and reliable.

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