Fixed tube plate heat exchanger In the fixed tube plate heat exchanger, fluids of different temperatures flow through the tube side and shell side, and heat exchange is completed through heat exchange. When the temperature difference between the two fluids is large, in order to avoid higher temperature difference stress, a compensation ring (expansion joint) is usually added at an appropriate position on the shell side. When the thermal expansion of the shell and the tube bundle is different, the compensation ring undergoes slow elastic deformation to compensate for the thermal expansion caused by temperature difference stress. Composition and characteristics of fixed tube plate heat exchanger Composition of fixed tube plate heat exchanger The fixed tube plate heat exchanger is composed of tube boxes, shells, tube sheets, tubes and other components. It has a compact structure, many rows of tubes, a large area under the same diameter, and is relatively simple to manufacture. The struct
Floating head heat exchanger One end of the tube sheets at both ends of the floating head heat exchanger is not connected to the shell, and this end is called a floating head. When the tube is heated, the tube bundle together with the floating head can freely expand and contract along the axial direction, completely eliminating the temperature difference stress. Floating head heat exchanger structure Drill holes and wire or weld multiple screws evenly between the concave and trapezoidal grooves. Set the floating head flange as a double seal of convex and trapezoidal bosses. The dividing plate is connected to the trapezoidal bosses and located at A wide-face flange with the same end face, and the convex and trapezoidal bosses and split-range partitions match the concave and trapezoidal grooves and split-range grooves of the floating head tubesheet respectively. The floating head flange is matched with the spherical surface without flanging The head is assembled and welded into a floatin