What are the methods and materials of boiler insulation?

As a kind of energy conversion equipment, the industrial boiler's conversion efficiency is naturally as high as possible, but the heat loss in the actual use of the boiler system is difficult to avoid. During the operation of the boiler, the temperature of the furnace wall and the outer wall of the boiler body is always higher than the temperature of the surrounding air, which will cause heat loss and heat dissipation loss. Therefore, boiler insulation is very important. As a professional boiler manufacturer, ZOZEN Boiler is here to introduce the relevant technology of boiler insulation.

Boiler insulation

Generally, the boiler insulation qualification standard requires that the surface temperature of the furnace wall should not exceed 45℃, or not higher than the ambient temperature of 25℃. The local temperature of coal-fired boilers is relatively high, and the state stipulates that the furnace top temperature should not exceed 70℃.

The influencing factors of boiler insulation and heat dissipation loss are related to the boiler surface area, insulation degree, outside air temperature and air flow speed.

The boiler is insulated by thermal insulation cotton, refractory mud and refractory bricks, among which thermal insulation cotton is divided into rock wool, aluminum silicate fiber cotton, aluminum chlorate fiber cotton and so on.

ZOZEN Boiler obtains the advanced insulation technology

ZOZEN Boiler is a large-scale energy-saving boiler manufacturer with A-Level boiler manufacturing license. The company has advanced tooling equipment and strong R&D strength. Its products cover oil and gas boilers, biomass boilers, coal boilers, circulating fluidized bed boilers and thermal oil heaters, with a boiler capacity of 1-130t/h, meeting the needs of users in various industries.

The boiler has good insulation quality, less heat loss and higher energy saving effect. ZOZEN Boiler is insulated with high-quality aluminum silicate fiber, and then insulated with refractory mud. The furnace temperature is controlled below 45℃, and the heat loss is limited. The front and rear smoke boxes are filled with multilayer aluminum silicate fibers, and then insulated with refractory mud, which increases the thermal resistance and effectively reduces the heat loss. The thermal efficiency of ZOZEN gas-fired boiler can reach over 98%.