TAILIEUCHUNG - Industrial Ventilation HandBook_b_3

Tham khảo tài liệu 'industrial ventilation handbook_b_3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Simpo PDF Merge and Split Unregistered Version - http 3-410-04N 25 October 2004 Exhaust Air for MK-48 Ventilated Spaces. The floor plan shown in Figure 4-6 optimizes the work path while allowing the ventilation system to control airborne contaminants. Obtain detailed MK-48 exhaust hood drawings from Naval Underwater Systems Center Code 8113. Figure 4-6. Typical MK-48 ventilated space layout. 4-5 Simpo PDF Merge and Split Unregistered Version - http 3-410-04N 25 October 2004 MK-48 Afterbody Teardown Hood. Workers uncouple the fuel section and the engine section of the torpedo in the teardown operations. During these operations Otto Fuel II remains in the lines and the components of the engine section and in the fuel tank. The residual fuel releases vapor into the air. Design the afterbody teardown hood as shown in Figure 4-7 to capture Otto Fuel II vapor. Design the hood using the following criteria. a. Install baffles on the top and side of the hood forming a booth. b. Install a 7-mm 3-in airfoil on the outer edge of the hood. The airfoil bent inward from the baffle must provide an airfoil effect and prevent turbulence and backflow. c. Install lighting that is vented and flush mounted in the overhead baffle as shown on Figure 4-7. d. Bolt the hood to the floor using a continuous natural rubber gasket on hood bottom to create a seal between the hood and the floor. 4-6 Simpo PDF Merge and Split Unregistered Version - http 3-410-04N 25 October 2004 Figure 4-7. MK-48 afterbody teardown hood. Notes All slots are 51mm 2in wide A 838mm 33ĩn B 1905 75in C 4420mm 174in D 1448mm 57in E 1194mm 47in F 559mm 22in G 305 12in H 150Ũmm 5âỉn l 1295mm 51ln J 508mm 20in K 305mm 12in L 76mm 3in M 1829mm 72in N 51mm 2in When hood is free standing use side and top baffles. Capture velocity s l50fprn . Light fixture is corrosion resistant vented and flush mounted. Mount hood on 51mm 2in high sealed concrete .

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