distinguish between centrifugal pump and piston pump|types of pumps explained : consultant Apr 19, 2023 · centrifugal pump vs piston pump @chemicalengineeringcourses6 About this video,This video content the difference in between the Centrifugal Pump and piston ... A screw pump is a positive-displacement pump that use one or several screws to move fluid solids or liquids along the screw(s) axis.
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A screw pump has an easy and reliable construction. It is very easy to design. There are three screw spindles, two of which are driven screws and the other screw is a driver. There is enough clearance between these screws, which is responsible for . See more
When it comes to selecting the right pump for a specific application, understanding the differences between various pump types is crucial. Two common types of pumps used in the petroleum industry are centrifugal pumps and piston pumps. While both serve the purpose of moving fluids, they operate on different principles and are suitable for different scenarios. In this article, we will explore the distinctions between centrifugal pumps and piston pumps, highlighting their unique features, applications, and advantages.
The pump can be driven by an electric motor or engine. Centrifugal pumps are usually used for liquids which are low in viscosity and low in solid concentration. However, there is a centrifugal slurry pump which can move liquids with a large amount of particles.
Difference Between Centrifugal Pumps and Piston Pumps
**1. Operating Principle:**
- **Centrifugal Pump:** Centrifugal pumps work on the principle of converting rotational energy from an impeller into kinetic energy to move the fluid. The fluid enters the pump through the center of the impeller and is flung outward by centrifugal force, creating a low-pressure zone that draws more fluid into the pump.
- **Piston Pump:** Piston pumps, also known as reciprocating pumps, use one or more pistons to create a reciprocating motion that draws in and expels the fluid. The piston moves back and forth within a cylinder, creating a vacuum to draw in the fluid on the intake stroke and pushing it out on the discharge stroke.
**2. Flow Rate and Pressure:**
- **Centrifugal Pump:** Centrifugal pumps are suitable for applications that require high flow rates but relatively lower pressures. They are ideal for transferring large volumes of fluid quickly and efficiently.
- **Piston Pump:** Piston pumps are capable of generating high pressures, making them suitable for applications that require pumping fluids against high resistance or over long distances. They are often used in high-pressure systems where precise control over flow rate and pressure is essential.
**3. Efficiency and Maintenance:**
- **Centrifugal Pump:** Centrifugal pumps are known for their simplicity, high efficiency, and low maintenance requirements. They have fewer moving parts, reducing the risk of mechanical failures and minimizing maintenance costs.
- **Piston Pump:** Piston pumps are more complex and have a higher number of moving parts, which can lead to increased maintenance needs and higher chances of wear and tear. However, they offer precise control over flow rates and pressures, making them suitable for applications that require consistent performance.
**4. Applications:**
- **Centrifugal Pump:** Centrifugal pumps are commonly used in applications such as water circulation, wastewater treatment, HVAC systems, and general fluid transfer where high flow rates are required. They are also used in the petroleum industry for transferring crude oil, refined products, and various chemicals.
- Centrifugal pump: relies on the rotation of the impeller to generate centrifugal force to transport liquid. - Plunger pumps: pump liquids through the reciprocating motion of the plunger. - …
Screw pumps have good efficiency between 80-85%, can handle flow rates of 10-1500 liters/minute, have high suction capability, and are self-priming, reliable, and used widely in machinery lubrication and fuel transport. Read less. Read more. 1 of 7. Download now. Downloaded 171 times.
distinguish between centrifugal pump and piston pump|types of pumps explained