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 Heat transfer oil radiator (to reduce the heat generated by equipment operation) is a relatively common equipment in the industry in recent years, but we also know that some large industrial equipment will have some unsafe factors in use, which will cause us to Degree of damage. The air heater is an electric heating device that mainly heats the gas flow. The heating element of the air heater is a stainless steel electric heating tube, and the inner cavity of the heater is equipped with multiple baffles (baffles) to guide the gas flow direction and extend the residence time of the gas in the inner cavity, so that the gas is fully heated and the gas Heating evenly and improving heat exchange efficiency. The heating element of the air heater is stainless steel heating tube, which is made of seamless steel pipe with electric heating wire, and the gap is filled with magnesium oxide powder with good thermal conductivity and insulation. When the current passes through the high-temperatur...

There are many types of shell and tube heat exchangers. Under normal circumstances, the shell and tube heat exchanger is divided into: fixed tube sheet type, floating head type, U-shaped tube type, stuffing box type and kettle type reboiler. Today I want to tell you more specifically about the  fixed tube-plate heat exchanger  in the  shell and tube heat exchanger . What is a   fixed tube-plate heat exchanger ? The tube plates at both ends of the fixed tube plate heat exchanger are connected and fixed to the shell by a welding method. The heat exchange tubes can be smooth tubes or low-fin tubes. It is suitable for occasions where the medium on the shell side is clean and not easy to scale and can be dissolved and cleaned. The temperature difference between the two sides of the pipe and the shell side is not large or the temperature difference is large, but the pressure on the shell side is not high. For more details please check  here

A heat exchanger is an energy-saving device that realizes heat transfer between materials between two or more fluids at different temperatures. It is to transfer heat from a fluid with a higher temperature to a fluid with a lower temperature so that the fluid temperature reaches the process. The specified index meets the needs of process conditions and is also one of the main equipment to improve energy efficiency. The heat exchanger industry involves nearly 30 kinds of industries such as HVAC, pressure vessels, water treatment equipment, chemical industry, petroleum, etc., forming an industrial chain with each other. Data show that the market size of China’s heat exchanger industry in 2010 was about 50 billion yuan, mainly concentrated in the fields of petroleum, chemical industry, metallurgy, electricity, shipping, central heating, refrigeration, and air conditioning, machinery, food, pharmaceuticals, and other fields. Among them, the petrochemical industry is still the largest ...

1.1 Improve heat transfer efficiency The cold and hot fluids transfer heat through the plates of the heat exchanger. The plate heat exchanger is an inter-wall heat transfer heat exchanger. The fluid is in direct contact with the plate, and the heat transfer methods are heat conduction and convection heat transfer. The key to improving the heat transfer efficiency of the plate heat exchanger is to increase the heat transfer coefficient and the logarithmic average temperature difference. A Reduce the thermal resistance of the dirt layer: ① Improve the heat transfer coefficient of the heat exchanger Only at the same time increase the external heat transfer coefficient of the cold and hot plates. Only use plates with high thermal conductivity to reduce the thickness of the plates to effectively increase the heat transfer coefficient of the heat exchanger. a. Improve the heat transfer coefficient of the plate The external heat transfer coefficient is related to the geometric structure ...