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Fundamentals: Introduction to the structure and selection of boiler feed pumps
As China's industrial development, many companies continue to expand the scale of the boiler as a source of power to increase, while in the non-boiler industry, there are very few proficient in the boiler profession, proficient in boiler auxiliary Fewer people, which gives enterprises in the selection of boiler auxiliary machinery to bring some difficulties. In order to avoid the use of boiler equipment in the practical application will not be a big deviation, the following Asian Fluid Network Xiaobian boiler feed pump structure and selection of a brief introduction. First, the structure of the boiler feed water pump Boiler feed water pump uses: Suitable for boiler feed water, mine drainage, factory and city feed water boiler feed pump Structural characteristics: GC type pump is horizontal, single suction multi-stage, segmented centrifugal pump Medium temperature: ≤ 105 ℃ Treatment Medium: clear water and physicochemical properties similar to the liquid water Drive: motor-driven flow range: 6mз / h-55mз / h Head Range: 46m-430m 1.5-- suction nozzle diameter (mm) And the whole G - boiler feed pump C - said the type of pump J - mechanical seal 5 - reduced to 1/10 pump than the number of revolutions. That is, the pump than the number of revolutions 50 6 - the number of impeller Fundamentals: Structure and selection of boiler feed pump introduction 1. Sleeve nut 2. Bearing cap 3. Bearing 4. Bearing body 5. Sleeve 6. Packing gland 7. Mechanical seal 8. Intake section 9. Seal ring 10. Impeller 11. Middle section 12. Return pipe 13. Outlet section 14. Gimbal ring 15 Balance plate 16. Tail cap 17. Sleeve 18. Tensioning bolt 19. Axis 20. Round nut Second, the boiler feed pump to determine the parameters 1. Feed pump flow calculation Q = k (Q1 + Q2) Where: Q-boiler feed pump flow, m3 / h; Q1- for the largest boiler M3 / h; Q2 - other water consumption, such as continuous sewage, regular sewage and desuperheater, m3 / h; k-standby factor of 1.1 to 1.2. 2. Boiler feed pump head calculation H = H1 + H2 + H3 + H4: H-boiler feed pump head, m; (Editor: Ye Qianwen) An expanded reading: 2016 China World Ring Expo 2016 Beijing Oil Show pump valve pipe fittings Exhibition Information 2016 Exhibition Information