Fixed tube sheet silicon carbide heat exchanger is a kind of tubular heat exchanger with simple structure Z and common use of Z for graphite products. Block hole graphite heat exchanger The heat exchanger is mainly composed of cylindrical shell, tube bundle (heat exchange tube), tube sheet, head (end cover), material inlet and outlet pipe and other components. The tube bundles are arranged in parallel, and both ends are fixed on the tube plate. The tube bundle can be fixed by welding, expansion welding or expansion welding. Flanges are welded on the end cover and shell respectively, and the flanges are connected by screws. They can be disassembled during cleaning or maintenance. The space inside and outside the tube is called the tube side and shell side respectively. The inlet and outlet nozzles of cold and hot fluids are welded on the end cover and shell respectively. The cold and hot fluids flow in the tube side and shell side respectively. The surface area of the tube bundle is the heat transfer area. Manufacturer of graphite heat exchanger
Each structural form plays a different role. Many factors must be considered in the design of shell and tube heat exchanger. At the same time, factors such as material price, manufacturing cost, power consumption and service life shall also be taken into consideration, so as to make the silicon carbide heat exchanger operate economically in the whole service life while meeting the process requirements.
When herringbone plate assembly is adopted, adjacent plates are inverted and the ripples contact each other, forming a fulcrum with large density and uniform distribution. The plate corner piece L and edge sealing structure have been gradually improved, making the silicon carbide heat exchanger have good pressure bearing capacity. The large pressure bearing capacity of domestic detachable plate heat exchanger Z has reached 2.5MPa. The thickness of the plate has a great influence on the heat transfer coefficient. When the thickness decreases by 0.1mm, the total heat transfer coefficient of the symmetrical plate heat exchanger increases by about 600W/(m? K), and the asymmetrical plate heat exchanger increases by about 500W/(m? K).
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