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Stainless steel natural gas filter element. First, let's talk about the working environment of the fuel gas filter element. In the transportation process of the fuel gas pipeline, gas source impurities and pipeline mechanical impurities will affect the quality of gas transmission, damage some metering and pressure adjustment equipment on the pipeline and so on, so every receiving and sending station or important equipment should be equipped with gas filtration equipment, to ensure the security of downstream devices (sometimes through multi-level filtering) . The filter element is also the main component of these filtering equipment, so the selection of filter element directly affects the filtering effect. According to the unique properties of the gas, the selection of stainless steel metal mesh as the main filter material, through the zigzag structure to increase the filter area of gas filter, to ensure good flow of gas through, while increasing the amount of pollution. The high and low temperature asbestos gasket is used as the sealing material to ensure that some low temperature gases, such as compressed Liquefied petroleum gas, are well sealed. The filter element should be cleaned or replaced in time according to the change of pressure difference. The service life of the gas filter element is greatly influenced by the cleanliness of the filter medium, and the maintenance of the filter element is also very important. 1. When the pressure difference between the two ends of the filter exceeds a certain value, the filter needs to be cleaned or replaced. 2. Cleaning should be carried out in a clean environment to prevent secondary pollution. It can be cleaned by high pressure backwash, or by water backwash. 3. Dry the filter element in time to prevent the support skeleton from rusting.
Four. Before re-installation of filter element must check the location of the seal ring and wear, if there is a problem to be replaced in a timely manner. Stainless steel natural gas filter core definition: in the air or chemical corrosion medium can resist the corrosion of a high-alloy steel, stainless steel is a beautiful surface and corrosion resistance is good, do not have to go through the surface treatment such as color plating, and play the inherent surface properties of stainless steel, used in a variety of steel, commonly known as stainless steel. Representative properties are 13 chromium steel, 18-chromium nickel steel and other high alloy steel. From the metallographic point of view, because stainless steel contains chromium, the surface of the formation of a very thin film of chromium, this film isolated from the invasion of oxygen in the steel to act as a corrosion-resistant role. In order to maintain the inherent corrosion resistance of stainless steel, steel must contain more than 12% chromium.