Plate heat exchanger is liquid - liquid, liquid - ideal gas for heat exchange equipment. It has a heat exchanger efficiency, heat loss is small, compact and lightweight, small footprint, easy to install clean, wide, long service life. Pressure loss in the same case, the heat transfer coefficient and tube heat exchanger than 3-5 times higher, the area is one-third tubular heat exchanger, heat recovery can be as high as 90%. Plate heat exchangers are widely used in metallurgy, petroleum, chemical, food, pharmaceutical, shipbuilding, textiles, paper and other industries, heating, cooling, heat recovery, rapid sterilization and other uses of the fine equipment. 
 Second, the structure and dimensions BR-type products, machine equipped with a common structure (not always take apart and wash with the working conditions) and the suspended structure (take apart and wash conditions used more frequently) both. Ordinary corrugated chevron-type structure consists of plate, gaskets, compression plate, the upper and lower bolts, bolts and other major parts. Chevron structure hanging from the corrugated plates, gaskets, fixed clamping plate, intermediate plate, activity compression plate, frame, positioning the upper and lower beams, bolts and other major parts.