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Heat exchangers are widely classified: titanium reaction kettle, pressure vessel, condenser, reaction pot, spiral plate heat exchanger, bellows heat exchanger, titanium tube heat exchanger, titanium plate heat exchanger, spiral plate heat exchanger , Shell and tube heat exchanger, volumetric heat exchanger, floating head heat exchanger, tube heat exchanger, heat pipe heat exchanger, steam water heat exchanger, heat exchange unit, graphite heat exchanger, air heat exchanger, Titanium heat exchangers and heat exchange equipment require the materials used to make the heat exchanger to have strong corrosion resistance. It can be made of non-metallic materials such as graphite ceramic glass and metallic materials such as stainless steel titanium tantalum zirconium.

However, graphite ceramic glass and other materials have the disadvantages of large fragility and poor thermal conductivity. Spiral plate heat exchangers made of rare metals such as titanium, tantalum and zirconium are too expensive, and stainless steel is difficult to resist many corrosive media And produce intergranular corrosion. In the industrial production of petrochemical, light industry, pharmaceutical energy, etc., titanium spiral plate heat exchangers often need to heat low-temperature fluids or cool high-temperature fluids to vaporize liquid into steam or condense steam into liquid. These processes are closely related to heat transfer, so they can be completed by heat exchangers. The heat exchanger is a device that transfers part of the heat of the hot fluid to the cold fluid, also known as a heat exchanger. The heat exchanger is an indispensable device for heat exchange and transfer in the chemical production process. There are often some corrosive and oxidizing materials in heat exchange, and the materials for manufacturing spiral plate heat exchangers are required to have strong corrosion resistance.
Finned titanium tube heat exchanger is also called tube fin heat exchanger. Its structural feature is that there are many fins on the outer surface or inner surface of the heat exchanger tube. Commonly used fins are longitudinal and horizontal. Titanium fin tube heat exchangers are used as air coolers and are widely used in industry. wide. The use of air instead of water cooling can not only be used in water-scarce areas, but also in places where there is sufficient water source, the use of air cooling has also achieved greater economic benefits. Of course, adding fins will increase the equipment cost, but generally when the ratio of the convection heat transfer coefficient of the two fluids exceeds 3: 1, it is economically reasonable to use finned titanium tube heat exchangers. The connection between the fins and the tube surface should be tight, otherwise the contact thermal resistance at the connection is very large, affecting the heat transfer effect. Commonly used connection methods include hot sleeve, inlay, tension winding and welding. In addition, the finned tube can also be manufactured by integral rolling, integral casting, or machining. Gas heating and cooling problems are often encountered in chemical production. Because the convective heat transfer coefficient of the gas is very small, when another fluid that exchanges heat with the gas is water vapor condensation or cooling water, the gas side thermal resistance becomes the heat transfer control factor. To strengthen heat transfer at this time, it is necessary to increase the convective heat transfer area on the gas side. Fins are provided on the gas side of the heat exchange tube, which not only increases the heat transfer area on the gas side, but also enhances the degree of gas turbulence, reduces the thermal resistance on the gas side, and thus increases the gas heat transfer coefficient.