Ningxia plate heat exchangers repair the Qinghai Power Plants cooler the transformation the Lanzhou Kai Lier equipment plate heat exchanger consists of a series of metal sheets with some corrugated shape from stacked 0931-8693909, a new type of highly efficient heat exchanger. Between the various plates to form a thin rectangular channel, through half a slice of heat exchange. The plate heat exchanger is a liquid - liquid, liquid - vapor ideal heat exchange equipment. It has a high heat transfer efficiency, heat loss is small, compact and lightweight, small footprint, to install and easy to clean, widely used, long life and other characteristics. The same pressure loss in the case of the heat transfer coefficient is higher than the tube heat exchanger 3-5 times, covers an area of ??one-third of the tube heat exchanger, heat recovery can be as high as 90% or more. The basic structure of the plate heat exchanger: ⒈ heat exchanger plates, ⒉ fixed clamping plate clamping plate ⒊ activities, ⒋ clamping bolt guide rod ⒌ on, ⒍ under the guide rod characteristics of plate heat exchangers, ⒎ after the column: a heat transfer coefficient is high because of different corrugated board mutually inverted form complex flow channel so that the fluid between the corrugated board was a rotating three dimensional flow in the flow channel can be generated at low Reynolds number (Average Re = 50 ~ 200) turbulence, so the heat transfer coefficient is high, generally considered to be a shell and tube 3 to 5 times. b. logarithmic mean temperature difference, the end of the small temperature difference between the shell and tube heat exchanger, two fluids flow within the tube and shell, the whole cross-flow, the logarithmic mean temperature difference correction factor is small, and the plate heat exchanger more cocurrent or countercurrent flow pattern, the correction factor is usually around 0.95, in addition, cold and hot fluid flow in the plate heat exchanger in parallel to the heat transfer surface, no bypass flow, thus making the plate heat exchanger the end of the temperature difference is small, less than 1 ℃ Ningxia plate heat exchanger water heat exchanger maintenance the Qinghai Power Plant cooler to transform professional Lanzhou Kai Lier Cooling Equipment Co. Details contact: 13919121288