Shandong heat exchanger cleaning, design of soybean oil heat exchanger 2. Design task 1. Treatment capacity: 2000kg / h soybean oil 2. Treatment capacity: 2000kg / h soybean oil 2. Equipment type: tubular (fixed tube plate) heat exchanger 3. Equipment type: tubular (fixed tube plate) heat exchanger 3. Operating conditions: A. operating conditions: A. soybean oil: inlet temperature: 133 ℃ ° C. Outlet temperature 40 ° C B. soybean oil: inlet temperature 133 ° C. Outlet temperature 40 ° C B. cooling medium: circulating water, inlet temperature 30 ℃ ° C. Outlet temperature 40 ° C. cooling medium: circulating water, inlet temperature 30 ℃ ° C. Outlet temperature 40 ° C. allowable pressure drop: no more than 105Pa Design requirements 1. Design a fixed tubesheet heat exchanger 2. Design a fixed tubesheet heat exchanger 2. Design contents include: A. thermal design B. flow design C. structure design D. strength design 3. Design steps: 1. Determine the design scheme according to the heat exchange task and relevant requirements 2. Preliminarily determine the structure and size of the heat exchanger 3. Calculate the heat transfer area and flow of the heat exchanger The design contents include: A. thermodynamic design B. flow design C. structural design D. strength design 3. Design steps: 1. Determine the design scheme according to the heat exchange task and relevant requirements 2. Preliminarily determine the structure and size of the heat exchanger 3. Calculate the heat transfer area and fluid resistance of the heat exchanger 4. Determine the process structure of the heat exchanger 4 Design principles: 1. The one with smaller heat transfer coefficient should have larger flow space, so that the heat transfer coefficient of the heat exchanger on both sides of the heat transfer surface is close to the cleaning heat coefficient. 2. The heat exchanger can reduce heat loss. 3. The tube and shell sides should be determined to facilitate descaling and repair, so as to ensure the reliability of operation. 4. The heat stress of the small tube and shell due to different heating should be reduced, For toxic media or gas phase media, it must not leak, and special attention should be paid to its sealing. The sealing should not only be reliable, but also be convenient and concise. 6. Precious metals should be avoided as far as possible to reduce costs. 1. The one with smaller heat transfer coefficient should have larger flow space, so that the heat transfer coefficient on both sides of the heat transfer surface is close to 2. Heat exchanger can reduce heat loss. 3 The determination of shell side should be convenient for descaling and repair, so as to ensure the reliability of operation. 4. The thermal stress of pipe and shell due to different heating should be reduced. From this point of view, the forward flow type is better than the counter flow type. 5. For toxic medium or gas phase medium, it must not leak, and special attention should be paid to its sealing, which is not only reliable, but also reliable, In addition, the cleaning of heat exchanger in Shandong should be convenient and concise. 6. Precious metals should be avoided as far as possible to reduce the cost. 5. Course requirements: 1. Members of each group are required to consult data together and cooperate in calculation and drawing. 2. The compilation and drawing process of instruction manual should be completed before January 10. 3. Each person is required to submit a instruction manual, Each group has one drawing (draw a device drawing with A1 drawing: a large equipment drawing, including equipment technical requirements, main parameters, connection list, parts list and title block). 1. Each group member is required to consult data together and cooperate in calculation and drawing. 2. It is required to complete the compilation and drawing process of instructions before January 10. 3. Each member is required to submit one instruction, One drawing for each group (draw a device drawing with A1 drawing: a large equipment drawing, including equipment technical requirements, main parameters, cleaning pipe list of heat exchanger, parts list and title block)