The integrated plate-and-shell heat exchanger is a tube-and-shell heat exchanger which is fixedly connected to the shell by welding at both ends of the tube bundle. After the tube sheet and the shell are welded, it can also double as a flange and be bolted to the tube box flange. The advantage is that the structure is simple, and the minimum inner diameter of the shell is required under the condition of ensuring equal heat transfer surfaces. The disadvantage is when the temperature difference between the shell-side and tube-side media is large, a large thermal stress will be generated, which will cause the tube and tube sheet joint to rupture and leak, or the tube will be unstable. At the same time, maintenance and shell-side cleaning are not convenient It is widely used in general occasions, and thorium is also limited by temperature difference.
Oil and gas field
◇ Heat recovery, cooling, heating, condensation, dehydration and reboiler processes can be used for gas, light oil and heavy oil products;
◇ Used in distillation, fractionator, hydrocracking, drying, desulfurization and similar processes;
◇ Pre-heating and heat recovery process of feed water;
◇ Liquefaction of liquefied petroleum gas.
Petrochemical field
◇ Used for condensation, heating, cooling, heat recovery and reboiler processes;
◇ Applied to the heating and cooling of organic substances, such as paraffin, aromatic hydrocarbons, alcohols, aldehydes, ketones, ethers, organic acids, and fats;
◇ Applied to heating and cooling of organic acids and corrosive acids;
◇ Heating and cooling of high viscosity polymer or organic matter;
◇ Heating and cooling of mineral oil;
◇ The cooling and drying of gas, such as oxygen, hydrogen, nitrogen, carbon dioxide, etc.
Food Industry
◇ Vegetable oil (palm oil) heating and cooling process.
Pharmaceutical and special chemical processes
◇ For condensation and defogging processes;
◇ Sanitary gas condensation process;
◇ Recycling process of water vapor and solvent;
◇ Synthetic ammonia cooling process.
HVAC, district heating
◇ Circulating water heating process;
◇ Steam heating (first station of combined heat and power);
◇ Heat recovery process;
◇ Low pressure steam heat recovery process;
◇ High temperature medium heat exchange;
◇ Evaporator and condenser (suitable for any refrigerant).
Energy and other fields
◇ Air preheater / reheater;
◇ Application in the decomposition process of alumina production seeds.
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