Gas boilers are a common type of furnace that uses natural gas as the main fuel. According to the different output media, they are divided into two categories: gas steam boilers and gas hot water boilers. Compared with other types of boilers, gas boilers have some special features in their combustion methods, which can help you better complete boiler selection. Zhengzhou Fangkuai boiler manufacturer will briefly tell you.
First of all, gas-fired steam boilers and gas-fired hot water boilers also have certain differences in their combustion methods. Most of these boilers use fire chamber combustion, and the combustion chamber carries out layered combustion. This type of furnace is generally small and basically less than 20 tons. , Mainly for commercial or civilian use. It is also relatively automatic in the use of fuel regulation.
Gas-fired hot water boilers generally use boiling combustion, and the other is cyclone combustion. The two combustion methods are completely different. Natural gas has an advantage over other fuels in burnout. When the high-temperature flue gas burns out, the furnace is further cooled. Burn-out cooling greatly improves the relative speed with air, which not only strengthens combustion, but also further improves the thermal efficiency of hot water boilers. With less cooling, it is also conducive to the loss of gas; therefore, the operating cost of gas-fueled boilers And there are still great advantages in terms of emissions.
In recent years, gas boilers have undergone continuous technological breakthroughs and improvements. The current operating efficiency has far exceeded coal-fired boilers, biomass boilers, etc., reaching as high as 98%. Therefore, the cost of operation is very cost-effective; The environmental protection factor is also very high. Compared with coal-fired boilers, the nitrogen emission exceeds the relevant standards. In addition, there are many shortcomings such as dust and special maintenance. At present, more and more people choose to abandon the use of coal-fired boilers. Choose a gas boiler.