Plate heat exchanger is an efficient heat exchanger composed of a series of metal plates with certain corrugated shapes stacked together. It stands out among numerous heat exchangers due to its unique working principle and composition structure. Plate heat exchanger
A plate heat exchanger consists of a set of metal plates with four corner holes for the passage of both cold and hot media. During assembly, A and B plates are arranged alternately, forming a mesh like channel between the plates. The sealing gasket seals the cold and hot media in the heat exchanger, while the plate heat exchanger also separates the cold and hot media reasonably without mixing. Cold and hot fluids flow intermittently in the channel, and can flow upstream or downstream as needed. During the flow process, the cold and hot fluids exchange heat through the plate wall to achieve the desired effect.
The main function of plate heat exchangers is to exchange heat, and their effects vary depending on the application field. At present, plate heat exchangers are mainly used in hot water, heating, chemical, power, metallurgy and other fields. Let's take a look at their roles in each field.
Paper industry: cooling black water, heating and cooling of bleaching salt and alkali solution, heat recovery of glass paper waste liquid, heating and cooking acid, cooling of sodium hydroxide aqueous solution, recovery of bleaching paper waste liquid, condensation of exhaust gas, preheating and concentration of pulp like waste liquid.
Oil industry: Heating and cooling synthetic detergents, heating whale oil, cooling vegetable oil, cooling sodium hydroxide, cooling glycerin and emulsified oil.
Ship: diesel engine, central cooler, jacket water cooler, piston cooler, lubricating oil cooler, preheater, seawater desalination system (including multi-stage and single-stage).
The above is the working principle of plate heat exchangers.