+86-573-8796 5589

Method for cleaning scale of heating furnace heat exchanger

The development of society, economic development, and the acceleration of social industrialization have brought us convenience in production and life. Winter is here. With the heating stove, we don't have to worry about the cold at home. We can still wear comfortable single clothes and enjoy warm and comfortable home life. The heat exchanger of the heating furnace needs to be maintained, so let me introduce you to relevant knowledge.


The biggest factor affecting the service life of heating stoves is the scale problem. As the scale adhering to the inner wall of the heat exchanger continues to thicken, the heat exchange efficiency of the energy-saving gas-fired boiler will also be greatly reduced, mainly manifested by the increased gas consumption of the energy-saving gas boiler, insufficient heating, and reduced hot water, etc. Symptoms seriously affect its service life, so any gas-fired boiler must be cleaned and maintained after two to three years of use. The circulating water in the heating pipe should be replaced every three to four years.


Destroy the water circulation of the heating furnace system: The scale of the heating furnace will destroy the water circulation of the heating furnace system, which will cause the cross section of the water pipe to become smaller, cause the water pipe to block, and even cause the pipe to burst.


Reduced heat transfer capacity: Excessive scaling will reduce the heat transfer efficiency of the heating furnace and reduce the amount of evaporation. Scale will lead to poor heat exchange on the heating surface, resulting in increased exhaust gas temperature, lower heating furnace thermal efficiency and increased fuel costs.



Affect the service life of the heating furnace: When there is scale on the heating surface, the heat transmission will be blocked, the temperature of the metal heating surface is too high, the strength will decrease, and eventually the heated parts will be deformed. In addition, mechanical or chemical methods are often used to clean the scale, which will shorten the service life of the heating stove.


Basic cleaning: Cleaning the stove is simple, but it's actually very simple. For the water change of the pipeline, you can use the water pump and pressure of the gas boiler to discharge the water from the water outlet, then pressurize it with clean water, and then release it. After repeated four or five times, the sewage in the pipeline can be discharged. The cleaning agent can be added to the pipeline to remove the scale, because the cleaning agent is not easy to damage the pipeline in the boiler, thereby extending the life of the boiler.


Details: But there are still a lot of things to pay attention to when cleaning gas-fired boilers. For different brands of gas-fired boilers, the internal structure is also slightly different. To understand its structure, materials and heat exchange methods. There are dozens of energy-saving gas-fired wall-hung boilers currently on the market, each of which uses different heat exchange methods, structures and materials, and different cleaning methods must be adopted for different structures and different materials.