What is the difference between U-tube heat exchanger and other heat exchangers?

What is U-tube heat exchanger? What is the difference between U-tube heat exchanger and other heat exchangers

　　 U-shaped tube heat exchanger, each tube is bent into a U shape, and both ends are fixed on the same tube plate, and each tube can be freely expanded and contracted, thereby solving the problem of thermal compensation. The tube pass is at least two passes, the tube bundle can be drawn out for cleaning, and the tube can expand freely. The disadvantage is that the inner wall of the tube is difficult to clean, the tube is difficult to replace, and there are few tubes arranged on the tube sheet. The advantages are simple structure, light weight, and suitable for high temperature and high pressure conditions.

　　 Spiral plate heat exchanger is a kind of high-efficiency heat exchanger equipment, suitable for steam-vapor, vapor-liquid, liquid-liquid, heat transfer to liquid. It is suitable for industries such as chemistry, petroleum, solvents, medicine, food, light industry, textiles, metallurgy, steel rolling, and coking. According to the structure, it can be divided into non-detachable (type Ⅰ) spiral plate heat exchanger and detachable (type Ⅱ, Ⅲ type) spiral plate heat exchanger.

　　 Column and tube condensers are divided into three types: carbon steel tube and tube condensers, stainless steel tube and tube condensers, and carbon steel and stainless steel mixed tube and tube condensers. According to the form, it is divided into tubular condenser, spiral plate heat exchanger, floating head heat exchanger, U-tube heat exchanger. According to the structure, it is divided into single-tube-pass condenser, double-tube-pass condenser and multi-tube-pass condenser. The heat transfer area is 0.5-500 square meters. Can be customized according to user needs. It is suitable for heat exchange equipment for various purposes in the chemical, light industry, metallurgy, pharmaceutical, food, chemical fiber and other industries. It is especially suitable for condensers to replace the original stainless steel condensers, enamel condensers, graphite condensers, etc. Glass condenser. The effect is remarkable after use.

One tube sheet of the floating head heat exchanger is connected to the shell with a flange, and the other tube sheet is not connected to the shell, so that the tube can be freely expanded and contracted when heated or cooled, but a top cover is connected to this tube sheet, which is called It is a "floating head", so this type of heat exchanger is called a floating head heat exchanger. Its advantages are: the tube bundle can be pulled out for cleaning; the expansion of the tube bundle is not restricted by the shell, so when the temperature difference between the two heat exchanger media is large, the thermal expansion of the tube bundle and the shell will not cause temperature difference stress . The disadvantage is that the structure is complex and the cost is high.