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This document outlines the key components and operation of a reciprocating air vessel pump. It defines an air vessel as a closed chamber containing compressed air and liquid. Air vessels are used to provide continuous, uniform liquid supply and reduce work overcoming friction. The document also defines cavitation as the formation of vapor bubbles when pressure drops below vapor pressure, and the damage caused by bubble collapse. It notes characteristics of reciprocating pumps include nearly constant capacity with varying head, and a maximum operating speed.
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Receprocating pump...
This document provides information about a reciprocating pump presented by students at UPU Government Polytechnic Durg. It discusses the construction, working, and installation of reciprocating pumps. Reciprocating pumps convert mechanical energy to hydraulic energy through a piston moving back and forth in a cylinder. As the crankshaft turns, it moves the piston which sucks fluid into the cylinder through the suction valve and then expels it through the delivery valve. Proper installation of reciprocating pumps includes inspecting for damage, filling the lubricant, and connecting and checking the suction and discharge piping.
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This document presents information about a jet pump presented by students at the U.P.U Govt. Polytechnic in Durg. It discusses priming the jet pump, the components that mount to it like the nozzle and impeller, cavitation that can occur in jet pumps, and the characteristics of jet pumps. Priming is filling the pump with water to remove air before startup. Cavitation is the formation of bubbles that can damage pumps. Jet pumps are light, easy to install, and convert kinetic to pressure energy.
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This document provides an overview of centrifugal pumps. It discusses priming, multistage centrifugal pumps including parallel arrangements, cavitation and its effects, operating characteristics, and selection based on specific speed. Multistage centrifugal pumps can be arranged in series or parallel, with parallel used to discharge large quantities of liquid. Cavitation occurs when pressure drops below vapor pressure, causing bubble formation and collapse that can damage pump surfaces. Operating characteristics curves show pump performance under different head, flow rates, and speeds. Pump selection is based on specific speed ranges that determine flow type.
Submersible pump ppt
This document presents information on submersible pumps submitted by a group of students. It discusses the classification, types of impellers, casings, stages, and couplings used in submersible pumps. The key points covered are that submersible pumps can operate when fully submerged, and there are two main types - deep well and short setting. Deep well pumps have multiple impellers above the motor for high heads, while short setting pumps have a single impeller below the motor for low heads. The rotating impeller transfers kinetic energy to the water, and different casing designs like volute and vortex are used to further convert this to pressure energy before discharge.
Submersible pump 1
This document provides information about submersible pumps presented at a seminar. It includes:
- An introduction defining submersible pumps and noting they can operate fully submerged or partially submerged.
- A brief history stating the first submersible oil pump was developed in 1928 and the first deep well water pump in the 1960s.
- Descriptions of the main parts of a submersible pump including the head, shaft, impeller, diffuser, casing, and lower bearings.
- Details on installation such as using a pump sled, check valves, well seals, and securing wiring.
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This document summarizes key aspects of centrifugal pumps, including:
1. Centrifugal pumps use rotational kinetic energy to transport fluids by converting it to hydrodynamic energy.
2. Centrifugal pumps are classified based on casing type, working head, liquid handled, number of impellers/shafts, and impeller flow direction.
3. The impeller is the rotating part that consists of backward curved vanes mounted on a shaft connected to a motor. Impellers can be closed, semi-open, or open.
centrifugal pump ppt
introduction, construction, various types of classification, working, advantage, disadvantage, application of a centrifugal pump
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Receprocating pump...
This document provides information about a reciprocating pump presented by students at UPU Government Polytechnic Durg. It discusses the construction, working, and installation of reciprocating pumps. Reciprocating pumps convert mechanical energy to hydraulic energy through a piston moving back and forth in a cylinder. As the crankshaft turns, it moves the piston which sucks fluid into the cylinder through the suction valve and then expels it through the delivery valve. Proper installation of reciprocating pumps includes inspecting for damage, filling the lubricant, and connecting and checking the suction and discharge piping.
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This document presents information about a jet pump presented by students at the U.P.U Govt. Polytechnic in Durg. It discusses priming the jet pump, the components that mount to it like the nozzle and impeller, cavitation that can occur in jet pumps, and the characteristics of jet pumps. Priming is filling the pump with water to remove air before startup. Cavitation is the formation of bubbles that can damage pumps. Jet pumps are light, easy to install, and convert kinetic to pressure energy.
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This document provides an overview of centrifugal pumps. It discusses priming, multistage centrifugal pumps including parallel arrangements, cavitation and its effects, operating characteristics, and selection based on specific speed. Multistage centrifugal pumps can be arranged in series or parallel, with parallel used to discharge large quantities of liquid. Cavitation occurs when pressure drops below vapor pressure, causing bubble formation and collapse that can damage pump surfaces. Operating characteristics curves show pump performance under different head, flow rates, and speeds. Pump selection is based on specific speed ranges that determine flow type.
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This document presents information on submersible pumps submitted by a group of students. It discusses the classification, types of impellers, casings, stages, and couplings used in submersible pumps. The key points covered are that submersible pumps can operate when fully submerged, and there are two main types - deep well and short setting. Deep well pumps have multiple impellers above the motor for high heads, while short setting pumps have a single impeller below the motor for low heads. The rotating impeller transfers kinetic energy to the water, and different casing designs like volute and vortex are used to further convert this to pressure energy before discharge.
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This document provides information about submersible pumps presented at a seminar. It includes:
- An introduction defining submersible pumps and noting they can operate fully submerged or partially submerged.
- A brief history stating the first submersible oil pump was developed in 1928 and the first deep well water pump in the 1960s.
- Descriptions of the main parts of a submersible pump including the head, shaft, impeller, diffuser, casing, and lower bearings.
- Details on installation such as using a pump sled, check valves, well seals, and securing wiring.
- An explanation that submersible pumps use multistage centrifugal force to
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This document summarizes key aspects of centrifugal pumps, including:
1. Centrifugal pumps use rotational kinetic energy to transport fluids by converting it to hydrodynamic energy.
2. Centrifugal pumps are classified based on casing type, working head, liquid handled, number of impellers/shafts, and impeller flow direction.
3. The impeller is the rotating part that consists of backward curved vanes mounted on a shaft connected to a motor. Impellers can be closed, semi-open, or open.
centrifugal pump ppt
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Pumps are devices that use mechanical energy to increase the velocity, pressure, or elevation of liquids and gases. There are two main types of pumps: positive displacement pumps and dynamic pumps. Positive displacement pumps apply direct pressure on a liquid using a reciprocating piston or rotating components. Dynamic pumps use centrifugal force to generate high rotational velocities and convert the kinetic energy of liquids into pressure energy. Common positive displacement pump types include piston pumps, plunger pumps, and diaphragm pumps. Common dynamic pump types include centrifugal pumps which contain an impeller and casing. Proper consideration of factors like net positive suction head are important for pump selection and operation.
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The document discusses the structure and operation of centrifugal pumps. It describes the key components of a centrifugal pump including the impeller, pump casing, bearings, sealing ring, stuffing box, and pump shaft. It explains how centrifugal pumps work by generating centrifugal force as the impeller spins, which forces the fluid outward from the center to increase pressure and flow. The document also provides some usage tips for centrifugal pumps such as using an eccentric reducer, pressure gauges, avoiding running the pump dry or in reverse.
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Submersible pumps are centrifugal pumps that operate submerged in water. They have a series of impellers that spin inside the pump and add pressure to force water through the pump. The number of impellers determines the pressure while the width determines the volume. They are efficient, require little maintenance, and work well in deep wells. However, they are unsuitable for pumping water containing sand or air and should not pump a well dry. Proper installation includes selecting the right drop pipe size and protecting the electrical connection from damage.
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Submersible pumps are vertically submerged pumps driven by electric motors. The motor and pump body are combined into a single unit, making them suitable for conveying liquids with particles. They work by using centrifugal force from an impeller's high rotational speed to convert kinetic energy in the liquid into pressure energy. Axial forces in the pump are absorbed by thrust bearings in the protector and pump. Submersible pumps come in various types depending on the liquid and use vertical, inclined, or horizontal installation positions.
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The document discusses multi-stage centrifugal pumps. It explains that a multi-stage centrifugal pump has two or more impellers to produce a high head. In a series connection, the total head developed is equal to the number of impellers multiplied by the head developed by each impeller. In a parallel connection, multi-stage pumps are arranged in parallel to discharge a large quantity of liquid, with the total discharge equal to the number of pumps multiplied by the discharge from each pump. Some applications of multi-stage centrifugal pumps include pumping water in high-rise buildings, industrial wash down facilities, fire hydrant systems, boiler feed systems, and irrigation.
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This document provides an overview of centrifugal pumps, including their classification, installation, operation, and cavitation issues. It discusses how centrifugal pumps work using centrifugal force to impart velocity and pressure to water. Key points covered include the components of centrifugal pumps, how head is calculated, velocity triangles that illustrate flow through the pump, and factors that influence efficiency such as specific speed. Cavitation, in which bubbles form and implode inside pumps, is also summarized as a pressure issue that can damage pumps if not addressed.
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Basics Fundamentals and working Principle of Centrifugal Pump. Centrifugal pumps are the rotodynamic machines that convert mechanical energy of shaft into kinetic and pressure energy of Fluid which may be used to raise the level of fluid. A centrifugal pump is named so, because the energy added by the impeller to the fluid is largely due to centrifugal effects.
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The document summarizes a jet pump, including its history, construction, working principle, types, uses, advantages, and disadvantages. Some key points:
- Jet pumps use pressure to create suction and transport fluids without moving parts. They were first developed in 1931 but not commercialized until 1955.
- They have a nozzle that increases fluid velocity, creating suction to draw in more fluid and discharge it at higher pressure. Efficiency is typically 30-40%.
- Types include deep well, shallow well, and convertible jets. They are used for applications like oil wells and aquariums.
- Advantages include no wear, adjustability, and suitability for remote operations. Disadvantages include lower efficiency
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The pdf contains explanation about the centrifugal pumps. It is usually studied by Mechanical or Civil engineering students. This pdf file will help for the students from these fields.
Centrifugal pumps
1) The document discusses two main types of pumps - centrifugal pumps and reciprocating pumps.
2) Centrifugal pumps work by converting mechanical energy to pressure energy using centrifugal force on the fluid, while reciprocating pumps use a piston moving in a cylinder.
3) The key parts of a centrifugal pump are identified as the suction pipe, impeller, casing, and delivery pipe. The impeller rotates to increase the pressure of the fluid, while the casing guides the fluid and further increases the pressure.
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This document provides information on various types of pumps and piping systems. It describes the main types of pumps as centrifugal, rotary, reciprocating, and deep well pumps. It also discusses the classification and basic operating principles of centrifugal and reciprocating pumps. Additionally, it covers topics such as pipe sizes, fittings, valves, head losses, cavitation, affinity laws, and equations for calculating pump parameters.
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The document discusses condensers used in thermal power plants. It describes the functions of a condenser as condensing exhaust steam from turbines to be reused in the steam cycle, creating a vacuum to improve turbine efficiency, and removing non-condensable gases. Key aspects covered include the condenser's role in the Rankine cycle, operation, materials used for tubes, sources of air leakage, methods for detecting water leakage into tubes, and cleaning and testing of condenser tubes.
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The document discusses submersible pumps. It provides an introduction to pumps in general and describes the key types. It then focuses on submersible pumps, explaining their working principle, applications such as water wells and aquariums, advantages like efficiency and noise reduction, and disadvantages like shorter lifespan. The conclusion is that submersible pumps may be suitable for populated residential areas due to their quiet operation and low initial cost outweighing disadvantages.
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This document provides information about various types of pumps. It discusses rotodynamic pumps and positive displacement pumps as the two main categories. Centrifugal pumps are described as a type of rotodynamic pump that uses centrifugal force to increase the pressure and flow of liquid. The key components of a centrifugal pump are described as the impeller, casing, suction pipe, and delivery pipe. The document explains how centrifugal pumps work by using the impeller's rotation to impart centrifugal force on the liquid and increase its pressure to lift it to a higher level. Performance characteristics such as efficiency curves are also mentioned. Reciprocating and rotary pumps are briefly introduced as well.
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The document summarizes the submersible pump. It describes how the first submersible oil pump was invented in 1928 and the first deep-well water pump was developed in the 1960s. A submersible pump consists of a centrifugal pump close-coupled to a submersible motor, pump bowl, motor assembly, discharge column, and head assembly. It is used for pumping water from deep tube wells and has applications in sewage, industrial pumping, oil wells, and sea water handling. The capacity is determined by the impeller and diffuser width, while pressure depends on impeller diameter, speed, and number of impellers. Advantages include use in deep wells and small diameters, while disadvantages include difficulty
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This document contains questions and answers about centrifugal pumps from a student named Nudler Eduard dated May 24, 2004. It discusses various components and functions of centrifugal pumps including wear rings, diffusers, bearings, balancing of axial pressure, shaft protecting sleeves, and more. Methods for regulating pressure and capacity are provided. Questions cover topics like the effects of changing impeller clearance and pump rotation direction, testing pump capacity and pressure, cooling mechanical seals, and forces acting on the pump shaft.
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Pumps are devices that use mechanical energy to increase the velocity, pressure, or elevation of liquids and gases. There are two main types of pumps: positive displacement pumps and dynamic pumps. Positive displacement pumps apply direct pressure on a liquid using a reciprocating piston or rotating components. Dynamic pumps use centrifugal force to generate high rotational velocities and convert the kinetic energy of liquids into pressure energy. Common positive displacement pump types include piston pumps, plunger pumps, and diaphragm pumps. Common dynamic pump types include centrifugal pumps which contain an impeller and casing. Proper consideration of factors like net positive suction head are important for pump selection and operation.
Double acting cylinder
Reciprocating engine cylinders are often classified by whether they are single- or double-acting, depending on how the working fluid acts on the piston.
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Centrifugal pumps are the industry's most preferred hydraulic pumps. At the heart of the centrifugal pump lies impeller which is the most crucial part of the entire system.
submersible pumps
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The document discusses submersible pumps. It defines a submersible pump as a pump with a hermetically sealed motor coupled to the pump body, allowing the entire assembly to be submerged. Submersible pumps are more efficient than jet pumps as they push fluid upward rather than pulling it. They work using multi-stage centrifugal pumps that use centrifugal force to convert kinetic to pressure energy as fluids pass through stages. Applications include drainage, sewage, wells, and irrigation.
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The document discusses the structure and operation of centrifugal pumps. It describes the key components of a centrifugal pump including the impeller, pump casing, bearings, sealing ring, stuffing box, and pump shaft. It explains how centrifugal pumps work by generating centrifugal force as the impeller spins, which forces the fluid outward from the center to increase pressure and flow. The document also provides some usage tips for centrifugal pumps such as using an eccentric reducer, pressure gauges, avoiding running the pump dry or in reverse.
Submersible pump
Submersible pumps are centrifugal pumps that operate submerged in water. They have a series of impellers that spin inside the pump and add pressure to force water through the pump. The number of impellers determines the pressure while the width determines the volume. They are efficient, require little maintenance, and work well in deep wells. However, they are unsuitable for pumping water containing sand or air and should not pump a well dry. Proper installation includes selecting the right drop pipe size and protecting the electrical connection from damage.
The Working Principle of Submersible Pump
Submersible pumps are vertically submerged pumps driven by electric motors. The motor and pump body are combined into a single unit, making them suitable for conveying liquids with particles. They work by using centrifugal force from an impeller's high rotational speed to convert kinetic energy in the liquid into pressure energy. Axial forces in the pump are absorbed by thrust bearings in the protector and pump. Submersible pumps come in various types depending on the liquid and use vertical, inclined, or horizontal installation positions.
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The document discusses multi-stage centrifugal pumps. It explains that a multi-stage centrifugal pump has two or more impellers to produce a high head. In a series connection, the total head developed is equal to the number of impellers multiplied by the head developed by each impeller. In a parallel connection, multi-stage pumps are arranged in parallel to discharge a large quantity of liquid, with the total discharge equal to the number of pumps multiplied by the discharge from each pump. Some applications of multi-stage centrifugal pumps include pumping water in high-rise buildings, industrial wash down facilities, fire hydrant systems, boiler feed systems, and irrigation.
CENTRIFUGAL PUMP WITH CASE STUDY
This document summarizes a presentation given by Vaibhav Kumar Arya on vocational training at Bharat Petroleum Corporation Limited in Mumbai. It discusses BPCL's refineries and history. It then focuses on centrifugal pumps, describing their main components and providing a case study on disassembling, cleaning, inspecting and reassembling a specific pump model. The pump was taken apart to replace a leaking mechanical seal and other worn parts.
Centrifugal pumps pump installation details – classification
This document provides an overview of centrifugal pumps, including their classification, installation, operation, and cavitation issues. It discusses how centrifugal pumps work using centrifugal force to impart velocity and pressure to water. Key points covered include the components of centrifugal pumps, how head is calculated, velocity triangles that illustrate flow through the pump, and factors that influence efficiency such as specific speed. Cavitation, in which bubbles form and implode inside pumps, is also summarized as a pressure issue that can damage pumps if not addressed.
Basics Fundamentals and working Principle of Centrifugal Pump.
Basics Fundamentals and working Principle of Centrifugal Pump. Centrifugal pumps are the rotodynamic machines that convert mechanical energy of shaft into kinetic and pressure energy of Fluid which may be used to raise the level of fluid. A centrifugal pump is named so, because the energy added by the impeller to the fluid is largely due to centrifugal effects.
Jet pump
The document summarizes a jet pump, including its history, construction, working principle, types, uses, advantages, and disadvantages. Some key points:
- Jet pumps use pressure to create suction and transport fluids without moving parts. They were first developed in 1931 but not commercialized until 1955.
- They have a nozzle that increases fluid velocity, creating suction to draw in more fluid and discharge it at higher pressure. Efficiency is typically 30-40%.
- Types include deep well, shallow well, and convertible jets. They are used for applications like oil wells and aquariums.
- Advantages include no wear, adjustability, and suitability for remote operations. Disadvantages include lower efficiency
Hydrauilc systems
This document outlines various hydraulic devices: hydraulic couplings transfer power between shafts using oil; torque converters multiply torque using guide vanes; hydraulic rams use water hammer to pump water to higher elevations; accumulators store hydraulic fluid under pressure to smooth demand; and jacks lift heavy objects using hydraulic force.
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The pdf contains explanation about the centrifugal pumps. It is usually studied by Mechanical or Civil engineering students. This pdf file will help for the students from these fields.
Centrifugal pumps
1) The document discusses two main types of pumps - centrifugal pumps and reciprocating pumps.
2) Centrifugal pumps work by converting mechanical energy to pressure energy using centrifugal force on the fluid, while reciprocating pumps use a piston moving in a cylinder.
3) The key parts of a centrifugal pump are identified as the suction pipe, impeller, casing, and delivery pipe. The impeller rotates to increase the pressure of the fluid, while the casing guides the fluid and further increases the pressure.
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Centrifugal pumps pump installation details – classification
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This document provides information on various types of pumps and piping systems. It describes the main types of pumps as centrifugal, rotary, reciprocating, and deep well pumps. It also discusses the classification and basic operating principles of centrifugal and reciprocating pumps. Additionally, it covers topics such as pipe sizes, fittings, valves, head losses, cavitation, affinity laws, and equations for calculating pump parameters.
Condenser in thermal power plants
The document discusses condensers used in thermal power plants. It describes the functions of a condenser as condensing exhaust steam from turbines to be reused in the steam cycle, creating a vacuum to improve turbine efficiency, and removing non-condensable gases. Key aspects covered include the condenser's role in the Rankine cycle, operation, materials used for tubes, sources of air leakage, methods for detecting water leakage into tubes, and cleaning and testing of condenser tubes.
Gas lift design
This document was produced as part of my final year project of training to obtain a petroleum engineering diploma.
The aim of this project is to make a comparative study between continuous and intermittent gas lift systems based on real data from an oil well in Algeria, and to choose the system best suited to increase the production of the well.
This study was carried out by a manual design using the method of “fixed pressure drop” for the continuous gas lift system and “fallback gradient” method for intermittent gas lift system.
We were able to determine at the end of this study that the system best suited to the current conditions of our well would be the intermittent gas lift system and we also proposed that it should be combine with the "plunger lift " system in order to increase the efficiency of the intermittent gas lift system by eliminating problems linked to the phenomenon of" fallback " thus increase the production of our wells.
Gas Lift Design: Comparative Study of Continuous and Intermittent Gas Lift (C...
This document was produced as part of my final year project of training to obtain a petroleum engineering diploma.
The aim of this project is to make a comparative study between continuous and intermittent gas lift systems based on real data from an oil well in Algeria, and to choose the system best suited to increase the production of the well.
This study was carried out by a manual design using the method of “fixed pressure drop” for the continuous gas lift system and “fallback gradient” method for intermittent gas lift system.
We were able to determine at the end of this study that the system best suited to the current conditions of our well would be the intermittent gas lift system and we also proposed that it should be combine with the "plunger lift " system in order to increase the efficiency of the intermittent gas lift system by eliminating problems linked to the phenomenon of" fallback " thus increase the production of our wells.
Pompa.pptx
Based on the information provided:
- Gage pressure (vacuum) = -20 inches of Hg
- Convert to psi: -20 inches Hg x 0.4912 psi/inch Hg = -9.824 psi
- Atmospheric pressure = 14.7 psi
- Liquid level above pump centerline is not provided
To calculate NPSHA:
- Atmospheric pressure (psi) converted to head = 14.7 psi x 2.31 ft/psi = 34 ft
- Gage pressure (vacuum, psi) converted to head = -9.824 psi x 2.31 ft/psi = -22.7 ft
- Static head = Unknown (not provided)
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Rajat
- 2. PRESENTED BY:- P.VINOD KUMAR KU. DEEPAK SAHU SHIVENDRA THAKUR RAJAT DEWANGAN GUIDED BY :- GAJENDRA DEWANGAN
- 3. AIR VESSELS :- An air vessel is a closed chamber containing compressed air in top portion and liquid (or water) at the bottom of the chamber.
- 5. Ld = length of delivery pipe beyond the air vessel, Ld ‘ = length of delivery pipe between cylinder &air vessel, Ls’ = length of suction pipe between cylinder &air vessel, Ls = length of suction pipe below the air vessel, Had = pressure head due to acceleration in delivery pipe, Has = pressure head due to acceleration in suction pipe, Hfd = loss of head due to friction in delivery pipe beyond the air vessel, Hfd’ = loss of head due to friction in delivery pipe between the air vessel, Hfs = loss of head due to friction in delivery pipe
- 6. USES :- To obtain a continuous supply at liquid at a uniform rate. To save a consider amount of work in over coning the feigional resistance in the suction and delivery pipe. To gun the pump at a high speed without separation
- 7. INDICATOR DIAGRAM:- The graph between pressure head in the cylinder and stroke length of the piston for one complete revolution of the crank,
- 8. CAVITATION:- Cavitation is defined as the of vapour boubles where the pressure of the liquid falls below its vapour pressure. And the sudden collapsing of these vapour boubles in a region of higher pressure. When the vapor boubles collapse a very high pressure created Which cause pitting action on the metalic surface.
- 9. PRECAUTIONS:- Fluid pressure in hydraulic system do not allowed to full below vapour pressure. Cavitation resistance material should be used CA, bronze, stainless steel Effect:- • Matelic surface are dunaged, cavities are formed • Due to sudden collapse of vapour bubbles, considerable noise and vibration are produced
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