Speaking of the plate heat exchanger, in the structure, the four corner holes on the plate, the formation of the fluid distribution tube and the discharge manifold, two kinds of heat transfer media respectively into their respective flow channel, the formation of a countercurrent or and smooth flow through each plate heat exchange.It has good social and economic benefits.Plate assembly, two sets of interwoven, board with board between the rubber sealing strip with adhesive, its role is to prevent fluid leakage and narrow net form flow channel formed between two plates, so the heat exchange plate pressure into various corrugated shape, in order to increase heat exchange plate area and rigidity, and can make the fluid turbulent flow at low velocity into, in order to achieve the effect of strengthening heat transfer.It is assumed that the temperature difference between the fluid and the wall surface is all concentrated in the effective membrane with thickness of 1 "", which is neither a thermal boundary layer nor an active boundary layer, but a virtual membrane with all the heat transfer temperature differences and heat transfer by thermal conduction.The temperature boundary layer is formed by the temperature change near the wall surface.The temperature difference is mainly concentrated in the bottom layer of laminar flow.That is, the chiller is used to refrigerate at night and store ice in the ice storage tank to meet the daily cooling demand and reduce the load peak of the air conditioner, so as to effectively save energy and save operating cost.We use the ice storage system of the plate heat exchanger to adjust the peak-load of the power grid.Convection heat transfer rate equation can be described by Newton's law of cooling, in most areas, every day have a lot of heat with waste heat medium (such as emissions of living hot water, hot water washing bath, process cooling water, etc.) and emissions into the atmospheric environment, nearby caused a huge energy spread, because the plate heat exchanger of low investment, high thermal efficiency, the requirements for the temperature of cold and hot medium is extremely low, waste heat recovery can be converted into secondary available heat energy, and use it to preheat condition.Plate heat exchanger is composed of a lot of corrugated heat transfer plate, according to a certain distance, through the rubber gasket pressure composed of a removable heat exchange equipment.Convection heat transfer mainly refers to the heat transfer between the fluid and the solid wall, and its heat transfer rate is closely related to the fluid properties and the condition of the boundary layer.
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