Tham khảo tài liệu 'process engineering equipment handbook episode 1 part 5', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Chemicals Toxic Handling C-51 A Pressure Regulator Valve B Pressure Relief Valve Vacuum Break 0. Sample Valve Optional Supplied By Carrier For Tank Trucks This figure illustrates a typical configuration and is not intended to be used as a design application. Qualified professionals must exercise engineering judgment to establish site specifications that meet applicable requirements. Note If the storage tank or any piping is located outdoors or in an area where the temperature could drop below 65 F it should be insulated and heat traced. Activated Containment Dike Note Tank transport to be equalized with storage tank with 2 min. line as shown or maintained with 10 psig nitrogen. 1 If the transport vehicle is being unloaded via pressure then the vapors should be passed to an activated carbon scrubber. 2 If the transport vehicle is being unloaded via a pump then a vapor return line can be run back to the vehicle. FIG. C-33 Top unloading and storage arrangement. Source ARCO Chemical. 2. Disconnect the steam lines and purge the coil by blowing with nitrogen. Do not replace the caps on the steam line. 3. Repressurize the car with nitrogen to 5-10 psig. 4. Secure the dome bonnet. 5. Be sure all four placards are in place before returning the car by the prescribed routing. Unloading tank trucks. Prior to unloading it is the recipient s responsibility to provide competent and knowledgeable supervision safety equipment and a properly designed unloading area. Tank trucks are unloaded by the driver of the C-52 Chemicals Toxic Handling Top Unloading Pipe insulated and heat-traced Bottom Control Box for Outlet Electrical Heat Valve Tracing AC DC FIG. C-34 Tank truck unloading. Source ARCO Chemical. vehicle who is responsible for following the proper safety rules as prescribed by recipient by the manufacturer and by government regulations. Trucks are specially equipped for unloading as shown in Figs. C-34 and C-35. The unloading area must be large enough for easy turning and .
