What are the advantages and disadvantages of coil heaters?

The coiled tube heat exchanger is a tube that is bent into a spiral spring shape or a flat spiral shape. The coiled tube heat exchanger is mainly used for heat exchange of liquids in the reactor. The coiled tube can also be used as an outdoor spray heat exchanger. Because this heat exchanger has a simple structure and is easy to manufacture. It is more suitable for occasions that require a small heat exchange surface. At the same time, because the pipe can withstand high pressure and is not easy to leak, it is often used for heating or cooling of high-pressure fluid. Also known as submersed coil heat exchanger. A type of coiled tube heat exchanger. The coiled tube is immersed in a container of fluid. One fluid flows in the container and the other fluid flows in the coil, and the two exchange heat through the walls of the coil. It can be used as a liquid preheater and evaporator, as well as a cooler or condenser for gases and liquids. The advantage is: (1) Simple structure ； (2) Low price ； (3) Can be made of any material ； (4) The coiled tube can withstand high pressure and is often used for cooling high-pressure fluids. The disadvantage is: (1) Low heat transfer efficiency ； (2) The equipment is bulky and not suitable for manufacturing large equipment