A spiral tube heat exchanger is made by placing one or more sets of tubes wound in a spiral shape inside a shell.Its characteristics include a compact structure;The heat transfer area is larger than that of a straight pipe.Small thermal stress,However, cleaning inside the pipe is more difficult.It can be used for heating or cooling fluids with high viscosity.
Spiral tube bundle: is the core component of the heat exchanger.It is formed by multiple heat exchange tubes wound around a central support or central cylinder in a specific spiral pattern.Heat exchange tubes are generally made of metal materials with good thermal conductivity.Such as copper, stainless steel, etc.Its parameters, such as pipe diameter, pitch, and number of winding turns, are precisely designed according to heat exchange requirements
case:Used to contain helical tube bundles and fluid.Provide a closed space for the heat exchange process.It is generally made of high-strength metal materials.Carbon steel or stainless steel, for example, are mostly cylindrical.Its dimensions are determined based on the specifications of the spiral tube bundle and its heat exchange capacity.The casing is equipped with inlet and outlet pipes for fluid inflow and outflow.
End cap:Installed at both ends of the housing,It serves to seal and fix the spiral tube bundle.The connection between the shell and the casing is usually achieved through flange or welding.The end cap will also be equipped with detection interfaces such as pressure gauge interface and thermometer interface.Some end caps also have drainage ports.
Supporting structure:Used to ensure the stability and reliability of helical tube bundle operation.For example, a support ring installed on the central support component.Or a support plate or similar device installed inside the casing.It can disperse the forces borne by the helical tube bundle.To prevent tube bundle vibration or deformation.
Fixed column:In spiral heat exchangers,The fixing posts are used to fix the spacing of the spiral plates.Improve overall structural strength,Ensure uniform fluid distribution within the channel.