gas boiler for heating and hot water

Comparing the difference between the gas boiler for heating and hot water and steam boiler advantages of liquefied gas and steam boilers little difference, that is, different fuels and different fuel consumption, fuel costs used are different. Other gas around almost all the same heating value kcal / cubic, different fuel consumption, fuel costs used are different. The other to see how the quality of boiler manufacturers a straightforward point me to it, natural gas and liquefied petroleum gas boiler boiler boiler is the same, if you buy a natural gas boiler then he can less gas, so no difference in performance , the difference in fuel costs. Gas-fired steam boiler one day fifty-six tons, ban on coal use to increase more than ten tons of biomass is not cost twice as much as natural gas? To natural gas stove or gas boiler steam boiler plant in the case of the same gas production fixed amount of heat per unit time required is equivalent to the boiler. The amount of material converted you born fuel coal heating value in accordance with your heat value of fuel and the raw material. Further, gas steam boilers to burn biomass transformation is required, otherwise the efficiency is not high. Domestic gas boiler manufacturers, how to line brands balance of power? Domestic gas steam boiler manufacturing enterprises, which have considered how brands, the balance of power? Domestic gas steam boiler manufacturing enterprises. The simplest is dosing the water into demineralized water then add precipitator boiler, gas steam boiler how to choose. Dust removal equipment design and selection follow the "advanced technology, economical and practical" principle; reasonable choice of filter design, practical, reliable, advanced, with a smooth operation, good low resistance, low power, cleaning effect, small footprint, etc. features; filter design to achieve low investment, low operating costs. Industry in general regardless of boiler manufacturers are installed, pressure, cook stove, blowpipe these efforts. Most of the owners are determined to suppress and installation team, cook stove, blowpipe program, boiler manufacturers engineers look no problems on the implementation.

In the national standard of water quality standard, the water quality index of hot water boiler for heating and hot water stipulates that the total hardness of water supply for chemical treatment outside furnace is less than 0.6 mmol / L. In recent years, in order to reduce the operating cost of heating units, some hot water gas-fired steam boilers have been overloaded due to the use of class Ⅲ bituminous coal as fuel instead of class Ⅱ bituminous coal designed to replace the designed type Ⅱ bituminous coal. During the maintenance in summer, it is found that the overloading boiler water wall tube fouling problem is more prominent, some boilers even occur tube burst accident. Why is heating hot water boiler overloaded, scale and even burst tube? Because the calorific value of class Ⅲ bituminous coal is higher, the type Ⅲ bituminous coal of the same weight is burned instead of the designed class Ⅱ bituminous coal. Bituminous coal increases the circulation of boiler riser is not absolute equilibrium, the geometric difference of riser and the heat load are different, so there is inevitably the deviation of flow rate between the risers. Due to the overloading operation of the boiler, some riser tubes are easy to overheat boiling because the flow rate is small, and the wall temperature is higher than the designed wall temperature, so that the scale and even the tube burst are easy to occur. How to prevent the boiler from scaling when overloaded? The heating hot water boiler operates under overload because of the scaling after the superheated boiling. Steam is produced in the process of superheated boiling. The water quality requirement of gas steam boiler is less than 0.03 mmol / L, which is much lower than that of hot water boiler. Water quality requirements. Based on the above reasons, the feed water hardness of heating hot water boiler is reduced, and the scaling phenomenon is eliminated by reducing 0.6mmol/L to 0.03mmol/L.

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The reason you must know the problems of energy consumption boiler for heating and hot water (boiler exhaust gas temperature) produce exhaust gas temperature of the boiler problem (1) shift the center position on the furnace flame, the exhaust gas temperature rises a multi-burner into the upper interlayer with the wind unreasonable . b upper stoker coal excessive. c burner tilt position shifted, resulting in the shift of the center position of the flame. d burner auxiliary throttle opening degree command deviations, lack of oxygen, pulverized coal combustion delayed. e a high-pressure fan outlet, wind speed is too large, the pulverized coal combustion furnace into the shift position. f leakage boiler, the furnace excess air factor export. g coal is too thick, ignition and slow combustion reaction. h low volatile coal, high ash, high moisture, ignition difficulties, to delay the combustion. i mill outlet temperature is low, the air entering the furnace temperature was lowered powder mixture, combustion delay. (2) When the boiler "four leak" for plugging, resulting in a superheater, reheater or economizer to reduce heat transfer area. (3) the supply air temperature is high. 4) high flue gas dew point temperature. (5) soot blowing equipment investment is not normal. (6) heating surface coking, fouling. (7) The air preheater ash fouling, heat transfer efficiency is lowered. (8) strict quality control, internal heating surface fouling. (9) low water temperature.

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