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  • LOCATION : HOME > PRODUCT > Fuel/gas hot water boiler > Horizontal condensing hot water boiler

    CWNS1.4-85 65-YQ horizontal fuel gas condensing hot water boiler
    Horizontal fuel gas condensing hot water boiler

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    1.CWNS series atmospheric pressure horizontal fuel (gas) hot water boiler is a horizontal internal combustion wet back shell boiler. Its main structure consists of a shell, a furnace, a rotating chamber, and a pipe. Applicable to natural gas, city gas, light oil, heavy oil and other gas and liquid fuels.

    2 Boiler design, production, supervision and inspection are strictly in accordance with the "Hot Water Boiler Safety Supervision Regulations" and related standards to ensure long-term safe and stable operation of the boiler.

    3 The main body is a three-way pyrotechnic tube structure with a full-humidity back and down flow. The flame is burnt in a large positive combustion chamber with low combustion heat load and low NOx emissions of harmful substances. Through the advanced testing and verification of the whole machine test bench, the boiler can obtain good thermal performance and qualified smoke emission index under various loads, and it is a low-carbon environmental protection product.

    4 The inner tank is corrugated bile (or straight furnace), the fire box is asymmetric eccentric structure, and the convection section is inserted with a turbulent passage to increase the heating area.

    5 front and rear smoke boxes use special insulation materials, high temperature resistance, low thermal conductivity, anti-quick heat and heat capacity, greatly extending the service life of the smoke box. The lower part of the cigarette case is provided with a condensate discharge port to reduce the corrosion of the pressurized parts by the condensed water.

    6 The venting port can be equipped with a condensing heat exchanger (optional), and the water vapor in the condensing flue gas absorbs the latent heat of condensation, thereby improving the thermal efficiency of the boiler.

    7 The boiler body is connected to the atmosphere, and the expansion water tank is arranged to operate under normal pressure without any hidden dangers.

    8 Adopt advanced LCD touch controller, digital prosecution system, with timing control, work record, leak detection alarm function, and add factory time lock.

    9 The boiler operation realizes automatic control, the outlet water temperature is automatically adjusted, the boiler automatic ignition program is started, and a variety of alarm interlock protection devices are provided to ensure efficient, safe and reliable operation of the boiler.

    10 perfect shape design, color steel plate shell packaging, compact structure, beautiful appearance, the overall fast loading factory, convenient transportation and installation.


    (economizer) condenser

    In a conventional boiler, after the fuel is burned in the boiler, the exhaust gas temperature is relatively high, and the water vapor in the flue gas is still in a gaseous state, which will take away a large amount of heat. Among all kinds of fossil fuels, natural gas has the highest hydrogen content, and the mass percentage of hydrogen is about 20% to 25%. Therefore, the exhaust gas contains a large amount of water vapor. It is estimated that the steam generated by burning 1m3 of natural gas should be taken away. The heat is about 4000KJ, which is about 10% of its high calorific value.

     The flue gas condensation waste heat recovery device uses the lower temperature water or air to cool the flue gas to reduce the flue gas temperature, close to the heat exchange surface area, and the water vapor in the flue gas condenses, and simultaneously realizes the sensible heat release of the flue gas and the latent heat of steam condensation. Released, while the water or air in the heat exchanger absorbs heat and is heated to achieve heat recovery and improve boiler thermal efficiency.

        Increased boiler thermal efficiency: The theoretical flue gas production of 1NM3 gas combustion is about 10.3 NM3 (about 12.5KG). Taking the excess air ratio of 1.3 as an example, a flue gas of 14 NM3 (about 16.6 KG) is produced. Take the flue gas temperature 200 ° C to 70 ° C, release physical sensible heat about 1600KJ, water vapor condensation rate of 50%, release vaporization latent heat of about 1850 KJ, a total exotherm 3450 KJ, about 10% of the natural gas low heat. If 80% of the flue gas enters the heat recovery unit, the heat energy utilization rate can be increased by 8% or more, and the natural gas fuel can be saved by nearly 10%.

        Separate layout, various installation forms, flexible and reliable

    As a hot surface, the spiral finned tube has high heat exchange efficiency, sufficient heating surface, and low resistance of the flue gas side system, which meets the requirements of ordinary burners.


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