Teflon in English is called Polytetrafluoroetylene, Teflon, PTFE, F4, etc. for short. Teflon has the comprehensive advantages that other materials cannot compete with, especially the temperature characteristics and corrosion resistance of Teflon materials in heat exchangers, which makes Teflon heat exchangers widely used in corrosion resistance industries, such as Chemical industry, pickling, electroplating, medicine, anodizing and other industries.
Teflon heat exchanger has super corrosion resistance and aging resistance. Because of its excellent temperature resistance, it is suitable for both steam heating and hot water heating.
Teflon heat exchanger is a new type of corrosion-resistant heat exchanger developed in the past ten years. The main result forms are shell and tube and immersive. It has unparalleled chemical and thermal stability (-250 ～ 260 ℃). F4 heat exchanger tube sheet and tube bundle (φ3 ～ 10mm capillary) are sintered by advanced powder metallurgy technology, and have excellent performance. Through the unique and advanced welding method, the connection strength between the tube bundle and the tube sheet of the Teflon heat exchanger reaches 1.5 Mpa;
1.Teflon heat exchangers have excellent corrosion resistance. Because Teflon is a chemically inert material, it can work in almost all media except elemental fluorine at high temperatures, molten alkali metals, chlorine trifluoride, uranium hexafluoride, and perfluorokerosene. Such as: concentrated hydrochloric acid, hydrofluoric acid, sulfuric acid, nitric acid, phosphoric acid, acetic acid, oxalic acid, caustic soda, sodium hypochlorite, naphthalene, benzene, xylene, acetone, aqua regia, chlorine gas, toluene, various organic solvents, etc .;
Teflon heat exchanger has good anti-scaling performance. Due to the chemical inertness, surface smoothness, flexibility, and high expansion coefficient of the PTFE tube, it is difficult for the heat transfer surface to scale, which greatly reduces the number of equipment maintenance and ensures a relatively stable heat transfer coefficient and production performance. Long running.
2. Teflon heat exchanger has good anti-aging performance. Because Teflon does not contain photosensitive genes, it has excellent resistance to atmospheric aging. Its service life is 20 to 30 times that of stainless steel in strong corrosive media;
3. Teflon heat exchanger has good heat transfer performance. Because the heat exchanger uses thin-walled tubes with wall thicknesses of only 0.5mm, 0.75mm, and 1mm, it overcomes the shortcomings of low thermal conductivity of Teflon material and makes its total heat transfer coefficient reach 150-300 (W / m² · K);
4. Teflon heat exchanger has low resistance. Because the coefficient of friction of Teflon is small, the roughness is low, and the lubricating performance is very good, the resistance of the fluid in the tube bundle is smaller than that of the metal tube. The Teflon heat exchanger is small in size and light in weight and compact in structure.
5. Teflon heat exchanger is also known as the plastic king heat exchanger. Its strong corrosion resistance and aging resistance make it widely used in chemical, pickling, electroplating, pharmaceutical, anodizing and other industries. At the same time, due to its extreme temperature resistance It is suitable for both steam heating and hot water heating.
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