Dealer Commercial 6t Natural Gas steam boiler Thailand

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Accessories szs system and boiler water tube boilers which (1) the fuel system the fuel system of pumps pumping fuel from the fuel tank to the day tank, is then withdrawn from the daily tank fuel pump, through a pressurized, heated, and sprayed into the filter oil atomization. This system is usually divided into the border daily service tank and oil supply system and fuel system. (2) feedwater, condensate water, steam condensate system piping system comprising pipes and valves and piping and other equipment from the deaerator. Steam system comprises a steam pipe and various valves. (3) the ventilation system features a ventilation system external air into the furnace for combustion of fuel, and the products of combustion (flue gases) discharged from the boiler to the atmosphere. In the process of air and flue gas flow, there will be a variety of flow resistance, if the natural ventilation generated by a chimney to overcome the resistance to flow, called natural ventilation. Obviously, this ventilation air flow generated is small, can be improved by increasing the height of the chimney natural ventilation. Using a fan to overcome the flow resistance of various ventilation systems, called mechanical ventilation. Mechanical ventilation is divided into positive pressure ventilation, ventilation and negative balanced ventilation. The so-called positive pressure ventilation means for sending air to the boiler and the flue gas discharged from the boiler to the atmosphere. Primer furnace boiler flue gas exhaust blower suction chamber, known as negative pressure ventilation. (4) boiler auxiliaries and monitoring instrumentation and monitoring instrumentation, boiler accessories boiler safe and economic operation are necessary, including: (A) as an annex to ensure the safe operation of the boiler: water level gauge, safety valve, pressure gauge and thermometer indicating steam parameters ; B) combustion supervision parts: pressure gauge, carbon dioxide indicator, oxygen table, smoking view mirror.

The difference of fuel between Oil-fired Boiler and Gas-fired BoilerOil-fired boiler refers to the fuel-fired boiler, including diesel oil, waste oil and other oil boilers. The overall arrangement of the oil-fired boiler is similar to that of the coal-fired boiler, except that the bottom of the furnace of the oil-fired boiler is mostly made into the bottom of the insulation furnace with a tilt to the back wall of 10 °~ 30 °, in order to obtain good combustion characteristics. In order to atomize fuel oil, there are two types of fuel burner nozzle: mechanical centrifugal injector and steam atomized Y type injector. The fuel of the oil-fired boiler is the fuel (such as diesel oil, kerosene, etc.). The fuel of the gas-fired boiler is gas (such as natural gas, city gas, biogas, etc.), depending on what fuel the boiler burns. The difference between a fuel-fired boiler and a gas-fired boiler is what kind of fuel burners are used to burn the gas-fired boilers, which are called gas-fired boilers, oil-fired boilers with fuel-fired burners, and oil-fired boilers called oil-fired boilers.

Measures to improve the thermal efficiency of the fuel gas-fired boiler wns type of chemical oil-fired boiler which is incomplete combustion heat loss and mechanical incomplete combustion heat loss. Because almost no ash after combustion of the gas boiler, solid and liquid fuels without mechanical incomplete combustion, there is no need to consider the mechanical incomplete combustion of the gas boiler heat loss. In all heat losses, heat losses have tremendous proportions, when the high thermal efficiency of boilers, heat losses so the total loss of the main heat losses of fuel gas-fired boiler flue gas heat loss is the exhaust gas temperature and For air excess factor. When the exhaust gas temperature decreases, high thermal efficiency can be obtained, for example, a conventional three-pass dealer commercial 6t steam boiler thailand, furnace used in the past straight and smooth smoke tube, must increase the heating surface is arranged to make the exhaust gas to an acceptable degree, the theoretical discharge around the smoke heat loss. Potshell causing significantly increased diameter, wall thickness increased, greatly increased metal consumption, thus further reducing the exhaust gas temperature should be greatly restricted. From the aspect of heat transfer is not only now consider only the heated area, the use of new technology enables heat transfer performance significantly increased, the difference between the heat transfer overcomes the disadvantages of the past performance of the boiler, so that the exhaust gas temperature decreases, the structure is more compact. Center back boiler combustion boiler is preferably small foreign structure, although the two-pass boiler, the heated area is small, but the use of the turbulator charming, the purpose of enhancing the turbulence of the flue gas, disrupt laminar flow boundary wall, reducing the thermal resistance, increasing the heat transfer coefficient, a smaller heating area to achieve the same high thermal efficiency. Lower exhaust gas temperature limit in theory, the exhaust gas temperature can be reduced to very low or even close to the ambient temperature, for maximum thermal efficiency. However, in practice, due to the reduction of the exhaust gas temperature, low temperature corrosion will cause, therefore, the exhaust gas temperature can drop too low, in order to ensure that the wall temperature is higher than the main boiler heating surface flue gas dew point temperature. Therefore, low-temperature corrosion has become a major obstacle to reduce exhaust gas temperature and improve the thermal efficiency of the boiler. Tail auxiliary heating surface increases, further reducing the exhaust gas temperature, fuel gas wns improve thermal efficiency of the boiler as the oil, gas fuel burn easily wns type gas boiler air preheater generally not disposed. The economizer means is a common energy, which can be recycled flue gas was able to effectively reduce exhaust gas temperature. Separation type condensing gas boiler is out of the main boiler heating surface, the installation of the condensing heat exchanger. In one aspect of the flue gas absorption can significantly reduce the smoke temperature, reducing heat losses, on the one hand the absorption of part of the potential condensing water vapor released, increasing the effective use of heat of the fuel. Ash cleaning, to ensure that the heating surface of the scale wns boiler thermal efficiency of the boiler, the presence of soot fouling and heat transfer resistance increases, reducing the heat transfer effect. The thermal conductivity of the scale and soot is almost of the same order of magnitude, with the increase in scale, soot, the exhaust gas temperature rapidly increases, the thermal efficiency is significantly decreased. So, keep the boiler heating surface inside and outside clean, efficient heat transfer, thermal efficiency and to ensure the safe and economic operation of boilers, boiler fuel gas-fired boiler ash cleaning is required.