Water Tube Hot Water Boiler

The water tube boiler refers to an industrial boiler in which a combustion chamber and a heating surface are arranged outside the drum, water is heated in the tube, and high temperature gas flows outside the tube for radiation heat exchange. FANGKUAI Boiler's water tube boilers are all SZS series, with a “D” arrangement to ensure good water circulation.

If you have questions about the structure, operating methods, operating costs, etc. of the water tube boiler, please email [email protected] or call 0086-371-60922096 directly. Our professional technical team will provide you with a systematic boiler solution for free.

The boiler shell use aluminium silicate board for heat preservation, the thickness of board is 8cm, high thermal shielding efficiency but low heat loss, to increase the boiler.

The spirally corrugated tube strengthen the disturbance of flue gas,high heat transfer efficiency.

The boiler adopts the fully automatic low nitrogen burner and flue gas recirculation system (FGR) technology. The fuel is fully burned, and the NOx emission can be reduced to below 30mg/m³.

Adopts double drums and "D" type structure, good flame fullness degree, boiler could absorb the thermal expansion effectively, and the large radiant heationg surface could ensure the high thermal efficiency.

Membrane wall structure is used for furnace water wall and convection pass, good leak-proofness, low air leakage, decrease the heat losing of exhaust gas, improve boiler thermal efficiency.

  • The boiler shell use aluminium silicate board for heat preservation, the thickness of board is 8cm, high thermal shielding efficiency but low heat loss, to increase the boiler.

  • Adopts double drums and "D" type structure, good flame fullness degree, boiler could absorb the thermal expansion effectively, and the large radiant heationg surface could ensure the high thermal efficiency.

  • The boiler adopts the fully automatic low nitrogen burner and flue gas recirculation system (FGR) technology. The fuel is fully burned, and the NOx emission can be reduced to below 30mg/m³.

  • Membrane wall structure is used for furnace water wall and convection pass, good leak-proofness, low air leakage, decrease the heat losing of exhaust gas, improve boiler thermal efficiency.

  • The spirally corrugated tube strengthen the disturbance of flue gas,high heat transfer efficiency.

  • More than 95% of automatic welding equipment is used. Each boiler is tested and quenched before leaving the factory. The qualified rate of inspection is 100%.

  • The drum is not directly heated, and the heat transfer and safety performance are significantly improved by placing the tube containing the water vapor in the furnace and the flue as a heating surface.

  • The furnace is placed outside the cylinder, and the volume of the furnace can be large or small to meet the requirements of combustion and large evaporation.

  • In terms of the heating area, the amount of boiler water is small, and in the event of a disaster, the degree of damage is small.

FANGKUAI Water Tube Steam Boiler

≥10t/h Rated evaporation

≤2.5MPa Rated pressure

FANGKUAI Water Tube Hot Water Boiler

≥10.5MW Rated thermal power

≤2.5MPa Rated pressure

  • Medical University 2 sets of 15 tons water tube steam boiler

    Winter heating and daily hot water are important contents in the logistics work of colleges and universities. At the same time, because the school is mainly engaged in medical science, steam protection is also needed in medical teaching.

  • Real estate company 2 sets of water tube hot water boiler

    The use of hot water boilers for central heating is an important measure for winter heating in most parts of China. With the full opening of the "Blue Sky Defence War", the proportion of clean heating has been continuously improved.

  • Heating company 2 sets of water tube hot water boiler

    Heating company 2 sets of water tube hot water boiler

    The company that cooperated with FANGKUAI Boiler was a heating company. After several communication and on-site field visits, the two parties determined that FANGKUAI Boiler will provide two FGR low-nitrogen water pipe boilers with a power output of 29MW to provide large-scale buildings.

  • Oilfield Company 25 ton water tube steam boiler

    The company that cooperates with FANGKUAI Boiler mainly deals with the production and processing of special oil fields. In the process of special oil refining, a large amount of steam is needed for the process of oil and gas refining, distillation and extraction.

  • Is there still a sewage discharge at the initial stage of the water tube boiler ignition?

    Mr.Li FANGKUAI Technical Engineer

    need. The water pipe boiler discharges at the initial stage of ignition, and discharges part of the water at the bottom of the circulation circuit, which not only allows the impurities to be discharged, but also ensures the quality of the water of the boiler; it can also strengthen the heat exchange capacity of the partially heated heat cycle and prevent the local water circulation from stagnating.

  • Does the water tube boiler have to be operated at constant pressure during operation?

    Mr.Wang FANGKUAI Technical Engineer

    Yes. The water tube boiler adopts constant pressure operation, which can improve the cycle heat efficiency of the unit. If the steam pressure changes, it will reduce the steam drop in the steam turbine, increase the demand for fuel from the output medium (steam or hot water), and increase fuel consumption.

  • Why do you want to blow the heated surface of the water tube boiler?

    Mr.Zhang FANGKUAI Technical Engineer

    Soot blowing is to keep the heating surface of the water tube boiler clean. The thermal conductivity of ash is very small. If the ash is accumulated on the heating surface of the boiler, it will affect the heat transfer effect of the heated surface, thus reducing the thermal efficiency of the boiler. When the ash accumulation is serious, the cross-sectional area of the flue gas flow is reduced, the flow resistance is increased, and the induced draft fan is increased. Electricity consumption, reducing boiler operating load, and even forced to stop the furnace.

  • What are the safety protection measures for water tube boilers?

    Mr.Han FANGKUAI Technical Engineer

    Fuel and gas water boilers must be equipped with reliable ignition control and flameout protection devices. Ventilation doors should also be installed in inflammable and explosive parts such as furnaces and flue ducts.

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Hot water/oil Steam

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