Lanzhou plate heat exchanger transformation of High Pressure Heater selected the Kai Lier cooling heat exchanger, also known as the heat exchanger and heat transfer equipment. Heat exchange between the two fluids and to achieve the purpose of heating or cooling equipment. Separated the different temperature of the fluid is solid partitions (heat transfer surface). Some direct contact heat exchange inside the two fluids. According to the action principle can be divided into partitions heat exchanger, regenerative heat exchanger and mixed-type heat exchanger. Can be divided according to purpose of use coolers, heaters, condensers and vaporizers. Structural materials can be divided into metal materials, heat exchangers, heat exchanger and non-metallic materials. The shape and structure of the heat transfer surface can be divided into a tubular heat exchangers and plate heat exchanger. 

 The main role of the oil cooler for cooling lubricants, turbine and generator is running, keep bearing temperature within the normal range. # 1, # 2 and # 5, # 6 crew host cold oil cooler is of Shanghai Turbine Works manufacturing, oil cooler running, frequent bottom end cap oil spill or leakage fault. Found to cause glitches in the actual repair process, close the technological transformation of measures to maintain a certain degree of reference for the design and operation of oil cooler. 
 Closed cooling water through the oil cooler at the top of end cap into the oil cooler, then flows in the small tube inside the oil cooler, numerous small cooling pipe located in the partition of the oil cooler inside the fixed partition Oil Cooler partitioned into several small space, lubricant flow in the cooling water pipe to the S-shaped, this arrangement can increase the effective heat transfer area to improve the cooling effect. At the bottom of the oil cooler, forming a cooling water chamber. Lubricating oil and cooling water rely on the two O-ring (reels tube) and the brass bed, separated and sealed.