Final PPT Boiler Feeder Pump presentation.pptx

Boiler feeder pump

1. TITLE BOILER FEEDER PUMP

2. CONTENT Abstract Introduction Problem statement Literature view Diagram Components Advantages Application Features Conclusion References

3. ABSTRACT Boiler feed water pump feeds condensed return water against high steam pressure produces by the boiler. BFP normally are centrifugal type pump containing a wide number of operating parameters, operator requirement make this system to work within parameter functioning by the manufacturer on high efficiency regimes. As pump is centrifugal type pump, water enters axially through impeller eye and exit radially. In these design judgmental task is to set up an high head with in four stages. The various pump parameter obtained from design is developed using 3D modeling software Pro-E, and analysis is carried out by using Ansys .

4. INTRODUCTION Pumps are energy-consuming devices being used in many industrial applications and in particular in dewatering, handling water & other fluids and in agricultural, the efficiency improvement of pumps has significant meaning to energy conservation. Feed pumps are an essential subsystem of boilers used in industrial process plants and called as boiler feed pump (BFP). Normally, BFP is high pressure unit that takes suction from condensate return system and can be of the centrifugal type pump. Normally, BFP is high pressure unit that takes suction from condensate return system and can be of the centrifugal type pump. In centrifugal pump, water enters axially through the impeller eyes and exits radially. Generally, electric motor is used as prime mover to run the feed pump. To force water into boiler, the pump must generate sufficient pressure to overcome steam pressure developed by boiler.

5. PROBLEM STATEMENT To develop higher head with high efficiency by decreasing the number of stages that is currently used. The present Boiler Feed Pump range has got limitation on head developed per stage resulting to more number of stages. This is a trigger point for this development. At a growing technology & awareness user requires compact size of pump & its assembly (especially in developed countries). Parts interchangeability pump require to meet the various standard (API-610, HIS).

6. OBJECTIVES Reducing the number of stages by increasing head per stage by improving performance of pump. Existing BB4 range expansion to cover requirement of BFW pump. Generating the hydraulics which can comply with various standards (country specific). Design of Compact size pump complying with requirement. Analyze Designed pump for validating design parameters.

7. FUTURE SCOPE The future scope of the project is that the current technique used for the protection of the boiler in the power plant can be evolved to protect the entire power plant as a whole. This may include the main assets of the power plant such as the turbine, generator etc. This advancement can be achieved if separate signals are sensed from each part of the power plant and are accordingly checked and the power plant is safeguarded from the failures automatically.

8. ANALYTICAL METHODOLOGY

9. LITRATURE VIEW A wide variety of centrifugal pump types have been constructed and used in many different applications in industry and other technical sectors. However, their design and performance prediction process is still a difficult task, mainly due to the great number of free geometric parameters, the effect of which cannot be directly evaluated. The present works discuss the comparison between the analytical and experimental performance curve of the high pressure boiler feed pump - a multistage centrifugal pump. The hydraulic loss model stated by J.F. Gulich is widely used for the analytical performance prediction of the single stage centrifugal pumps.

10. CAD MODEL Assembly of Pump

11. 3-D Model of pump rotor shaft COMPONANTS

12. Pump casing

13. ANALYSIS RESULTS Fig. Impeller Shaft Deformation Results 1. Impeller Shaft Analysis

14. ANALYSIS RESULTS 1. Impeller Shaft Analysis Fig. Impeller Shaft Stress Results

15. ANALYSIS RESULTS 2. Pump Casing Analysis Fig. Pump Casing Deformation Results

16. ANALYSIS RESULTS 2. Pump Casing Analysis Fig. Pump Casing Stress Results

17. ADVANTAGES Increase the performance & efficiency of pump which directly save power. Increase the pressure head by using minimum power. To develop higher head with high efficiency by decreasing the number of stages that is currently used . Compact size

18. APPLICATION Boiler Feed Pump is used for pumping the hot feed water from feed water tank to boiler drum through high- pressure heaters and economizer. Condenser extraction pump for pumping condensate from condenser hot well to the feed water tank through low-pressure heaters, main ejectors gland steam coolers, vent condenser and Deaerator. Cooling water pumps for circulating cooling water from cooling water fore bay to the condenser tubes for condensing the steam and then to cooling tower. Starting oil pump for governing of turbine during startup of the turbine. Emergency oil pump for the lubrication of turbine bearings during emergencies. Gear pump for the lubrication of boiler feed pump bearings.

19. CONCLUSION As deflection and stress of model is within the range Thus, the design of the model is safe after running pump at 3550 rpm and with enlarged scaled factor 1.05. Result obtained in the final test of the pump is satisfactorily with increase in efficiency by 1.5% to reference. Using the modern state of art composite material weight of the impeller and shaft will reduce considerably it optimizes the operation of pump effectively.

20. REFERENCES Ankur Geete , khandwawala , A.I (2013) ‘Thermodynamic analysis of 120MW thermal power plant with combined effect of constant inlet pressure (124.61bar) and different inlet temperature case studies, Thermal Engineering, Vol.1, pp.17-25. Benjamin Greening, Adisa Azapagic (2013) ‘Domestic solar thermal water heating: A sustainable option for the UK’, Renewable Energy, Vol.63, pp.23-36 Burkhard Sanner , Constantine Karytsas , Dimitrios Mendrinos , Ladislaus Ryback (2003)’Current status of ground source heat pumps and underground thermal energy storage in Europe’, Geothermics , Vol.32, pp.579-588. Cuizhen Zhanga , Mo Yang,Mei Lua,Jiaxian Zhub and Wendong Xua (2012)’Thermal economic analysis on LiBr refrigeration-heat pump system applied in CCHP system’’ Physics Procedia, Vol.33,pp.672-677.