HELYX is the largest supplier of heating equipment. We offer various options for water-to-water heater (shell-and-tube heat exchanger) devices.
Shell-and-tube heat exchangers are a heat exchange apparatus between two streams with the heating of one medium (liquid, gaseous) due to a cooling agent. In the course of the thermal process, there is no mixing of the two media, they can change the state of aggregation.
Hot and cold heat carriers move in different channels, and heat transfer occurs through the walls of the tube bundles. To increase the heat transfer surface, pipe finning is used, which is performed by winding a steel tape.
The principle of operation of a shell-and-tube heat exchanger is the standard processes of energy transfer between liquids and various gases. To increase the coefficient of thermal energy transfer, rather high speeds of movement of products inside the structure are used. For steam or gas, they generate from 8 to 25 m / s. For heat transfer fluids, the minimum speed is 1.5 m per second.
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