German
French
Italian
Portuguese
Japanese
Korrean
Russian
The main purpose and testing principle of high-efficiency filter
The main purpose and testing principle of high-efficiency filterThe main purpose of high-efficiency filters: Most of the application requirements are to keep the original appearance of the building. When determining the type of high-efficiency filter to be adopted, the main considerations are the required aesthetic standards, the corrosion of the urban air, and the cleaning system to be adopted. However, other applications are increasingly looking for structural consistency or water resistance. For example, the roofs and corners of public buildings. In these applications, the owner's construction cost may be more important than aesthetics, and the surface is not very clean. High-efficiency filters are different from ordinary mesh products. There is only a strict series of mesh specifications. There are mesh products that conform to the recognition of the manufacturing industry, organization, and standards for the classification and selection of bulk particles. Stainless steel screens do not talk about "mesh number". "Screen mesh number" is just a habit for us to describe stainless steel screens, which has been difficult to overcome for a while. Stainless steel screens are different from ordinary mesh products in that they have strict mesh specifications, rather than being expressed in "screen mesh number". The specifications of stainless steel mesh are not isolated. They are composed of a series of mesh specifications. The purpose is to select by grade. Only such mesh products can be called stainless steel mesh.The testing principle of high-efficiency filter: The dust source of the high-efficiency filter test is monodisperse sodium ion corrosion, and the "quantity" is the color of the radon flame when it contains corrosion. The main instrument is a flame photometer. The saltwater is sprayed under the stirring of compressed air, and the filtration efficiency of the mist is determined by the filter. The salt high-efficiency filter is dried to produce fine corrosion and enter the air duct. Samples are taken before and after the filter. The salt mist water sample makes the color of the radon flame blue and the color increases. The high-efficiency filter uses the flame color to judge the corrosion concentration of the gas, and the filtration efficiency of the filter is determined by the filter. |
