There are three main types: Gas-gas heat pipe heat exchanger (heat pipe air preheater) Gas-gas heat pipe heat exchanger is a new type of heat exchanger which absorbs waste heat from the discharged hot air and then transfers the heat to the cold air, similar to the air preheater commonly used in boilers. Air preheaters,50l rotovap, like Economizers and superheaters, are a normal and necessary part of a large boiler. The air preheat accelerates that fuel dry process, reduces the difficulty of igniting low-value fuel and wet fuels, expands the economic combustion of these fuels, and also increases the overall steam production of the boiler. Gas-liquid heat pipe heat exchanger (heat pipe economizer) Heat pipe has a broad field in industrial waste heat recovery and energy utilization. Gas-liquid heat pipe heat exchangers are used to recover heat from flue gas to heat water for reuse. It is very economical and easy to achieve, and the effect is very satisfactory, especially for the high temperature smoke exhaust furnace, the smoke exhaust temperature is high, which is more superior. The gas-liquid heat pipe heat exchanger inserts one end of the heat pipe from the exhaust end, and each heat pipe is wound with fins on the pipe wall to increase the heat absorption surface. The other end is placed in the water tank, and when the high-temperature flue gas passes through the heat absorption section, the heat pipe medium evaporates to generate steam to the other end to release heat and heat the water in the water tank. And is particularly suitable for high flue gas waste heat utilization. Gas-steam heat pipe heat exchanger In that gas-steam heat pipe heat exchange structure, a condensation section of a heat pipe is arranged in a boil,wiped film distillation, an evaporation section of the heat pipe is inserted into an exhaust flue of the boiler, heat is transferred through the heat pipe, and cold wat is added to 100 deg C to obtain required boiling water and also can be heated into steam of which the temperature is more than 100 deg C. Spiral Baffle Heat Exchanger in Petrochemical Industry Helical baffle heat exchanger is a modern and efficient heat exchange facility, which has been widely used in many countries and regions in the world. Since the 1950s, China's petrochemical industry began to promote the application of spiral baffle heat exchangers, and at the same time, in the mid-1960s, the batch production of roll bed rolling was realized. At the same time, the development of spiral baffle heat exchanger technology in China is also very fast. Compared with the traditional heat exchanger, the spiral plate heat exchanger has many advantages. It can heat and cool alcohols, resins, urea, small molecular monomer polymerization olefins, gasoline and diesel oil, ammonia water, chlorine water, saline, strong base and strong acid, nitrogen-hydrogen-ammonia mixed gas and the like. Baffle is an important component to improve the efficiency of heat exchanger. The most commonly used baffle in the traditional heat exchanger is the segmental baffle, which is gradually replaced by the helical baffle in recent years because of the existence of large resistance and pressure drop, flow stagnation, easy fouling, small average temperature difference of heat transfer, easy failure under vibration conditions and other defects. An ideal helical baffle should have a continuous helical surface. Because of the difficulty of processing, wiped film evaporator ,hemp extraction centrifuge, the folding willow plate used at present is generally connected by several 1/4 fan-shaped flat plates instead of curved surfaces to form an approximate spiral surface. When baffling, the fluid is in a state of approximate spiral flow. Therefore, compact heat exchangers such as plate-fin heat exchangers can be selected. At the same time, in order to achieve a reasonable and economical heat exchanger, the heat exchanger must be adjusted from the perspective of structural parameters. It is not perfect to consider only the heat exchange area and margin. Editor Sum up Being familiar with the types, uses and principles of heat exchangers in the petrochemical industry can effectively avoid the premature damage of heat exchangers, improve the energy efficiency of the petrochemical industry,rotary vacuum evaporator, prevent unnecessary shutdown, and avoid the loss of products caused by the problems of heat exchangers. —————————————————————— Disclaimer: The copyright of this article belongs to the original author. If copyright is involved, please contact to delete and return to Sohu to see more. Responsible Editor:. toptiontech.com