Taking the above research results as a reference, the height between the burner nozzle and the pot is adjusted by simple and reliable means, so that the gas stove can perform high-efficiency and low-pollution work under different powers.
1, including gas supply system, flue gas measurement system, temperature measurement system and energy-saving gas stove. The gas flows out through the gas tank, enters the mass flow controller, and finally enters the energy-saving gas stove.
The gas supply system includes a gas tank, a pressure reducing valve, a gas supply pipe, and a mass flow controller. The fuel is propane and the purity is 98%. The measuring system includes the electronic flue gas analyzer Testo350, flue gas collector and the like. The temperature measuring system includes a mercury thermometer, a power agitator, etc., and the burner adopts a common atmospheric gas stove, and the stove head can be raised and lowered in the vertical direction.
Table 1 Thermal efficiency at different fires of conventional gas stoves Fire/slm thermal efficiency /% 2.2 Thermal efficiency and pollutant emissions after adjusting the height.
The relationship between the height and the thermal efficiency and CO emission when the fire is 0.97slm 2.3 The optimum height of the gas stove with high efficiency and low pollution work The best height refers to the height of the corresponding high efficiency and the pollutant emission in accordance with national standards under a certain gas flow rate. . According to the standard of GB16410-2007, the conversion concentration of CO in flue gas emitted by gas stove is lower than 0.05%. The relationship between height and thermal efficiency and CO emission when the fire is 1.06slm Table 2 The optimal distance and thermal efficiency of different fires The relationship between the height of the gas flow/slm nozzle and the bottom of the pot/m fire at 1.3slm is related to the thermal efficiency and CO emission. Table 3 Different heights and different flows Due to the suitable combustion space, the gas is burned in time to release heat, and the excess air coefficient required for combustion Just meet the requirements. When the cooktop reaches the same height at the bottom of the pan, as the gas flow increases, the thermal load above the burner increases, and the temperature rises, so that the NOx emission increases, so the NOx emission concentration increases. The data in Table 3 is compared with the nationally specified NOx emissions to meet national standards.
3 Conclusions In the range where the power is not strictly limited, the thermal efficiency of the adjustable energy-saving gas stove is about 4% higher than that of the conventional gas stove, and when the energy-saving gas stove is working in high-power conditions, the energy-saving effect will be more significant. At the same time, pollutant emissions are within the national gas stove standard range.
(Finish)
Home Decorative,Vintage Home Decorative,Perfect Home Decor,Custom Home Decor,3D Wall Stickers Home Decor
Shenzhen Guang Disen Furniture co.,ltd , https://www.gdisenfurniture.com