Shandong Guobang Pharmaceutical Group  raw material drug production solvent recovery, heat transfer area of ​​the original Design Institute 1058.7m2, equipment covers an area of ​​800 square meters; optimum design, using SECESPOL heat exchanger heat transfer area required 297.7m2, covers an area of 400 m2, only the original design of the 1 / 2, 50% savings in capital costs, installation costs savings of 30%, and better condensation, solvent exports lower than the original 10 ℃.