Selecting right electric submersible agitators is crucial for achieving optimal efficiency in various industrial processes. This blog post will guide you through the key factors to consider when choosing an electric submersible agitator, ensuring you make an informed decision that meets your specific needs and maximizes operational efficiency.

Application And Process Requirements

The first step in selecting an electric submersible agitator is to thoroughly understand your application and process requirements. Different industries and processes have unique needs, and the agitator you choose must be tailored to meet these specific demands.

Consider the nature of the fluid you'll be working with. Is it a low-viscosity liquid or a high-viscosity slurry? What is the fluid's density, and does it contain any solids or particulates? These factors will influence the type of agitator and impeller design you'll need.

Next, think about the tank or vessel size and shape. The agitator must be able to effectively mix the entire volume of fluid, so the tank dimensions and geometry play a crucial role in determining the appropriate agitator size and power requirements.

Temperature and pressure conditions are also important considerations. Ensure that the agitator you select can withstand the operating environment, including any corrosive or abrasive substances present in the fluid.

Lastly, consider the specific mixing goals of your process. Are you aiming for solid suspension, gas dispersion, heat transfer, or homogenization? Each of these objectives may require different agitator characteristics for optimal performance.

Agitator Type

Once you've defined your process requirements, you can narrow down the type of electric submersible agitator that best suits your needs. There are several types available, each with its own strengths and ideal applications.

Top-entry agitators are commonly used for larger tanks and can handle a wide range of viscosities. They're versatile and offer good mixing efficiency for many applications.

Side-entry agitators are often chosen for their ability to create strong horizontal flow patterns, which can be beneficial for certain mixing objectives. They're particularly useful in large storage tanks where maintaining uniformity is crucial.

Bottom-entry agitators are excellent for applications requiring intense mixing or when working with high-viscosity fluids. They can provide efficient mixing even in shallow tanks.

For the purpose of this article, we'll focus on electric submersible agitators, which offer unique advantages. These agitators are fully submerged in the fluid, making them ideal for applications where top or side mounting is not feasible. They're particularly useful in deep tanks or when dealing with fluids that tend to form a surface crust.

When selecting an electric submersible agitator, consider factors such as the mounting method, seal type, and materials of construction to ensure compatibility with your process conditions.

Motor Power And Speed

The motor power and speed of your electric submersible agitator are critical factors in achieving optimal efficiency. The power requirement depends on several factors, including the fluid properties, tank size, and mixing objectives.

To determine the appropriate motor power, consider the fluid's viscosity and density. Higher viscosity and density generally require more power to achieve effective mixing. Additionally, larger tanks or more demanding mixing objectives will also necessitate higher power ratings.

The speed of the agitator is equally important. In general, lower viscosity fluids can be mixed effectively at higher speeds, while higher viscosity fluids may require lower speeds to avoid creating vortices or excessive shear.

Variable speed drives can be a valuable feature, allowing you to adjust the agitator speed to match changing process conditions or different batch requirements. This flexibility can lead to significant energy savings and improved process control.

It's crucial to strike a balance between power and speed to achieve optimal mixing while minimizing energy consumption. Consulting with experienced manufacturers or process engineers can help you determine the ideal power and speed specifications for your specific application.

Impeller Design

The impeller is the heart of the agitator, responsible for creating the flow patterns that achieve your mixing objectives. Selecting the right impeller design is crucial for optimizing efficiency and achieving the desired process results.

There are several common impeller designs, each suited to different applications:

Hydrofoil impellers are energy-efficient and provide good flow with low shear. They're ideal for applications requiring gentle mixing or when working with shear-sensitive materials.

Pitched blade turbines offer a good balance of axial and radial flow, making them versatile for a range of applications. They're particularly effective for solid suspension and blending.

Radial flow impellers, such as Rushton turbines, are excellent for gas dispersion and high-shear applications. They create strong turbulence and are often used in fermentation processes.

High-efficiency impellers are designed to maximize flow while minimizing power consumption. These can be a good choice when energy efficiency is a primary concern.

When selecting an impeller, consider factors such as the impeller diameter-to-tank diameter ratio, the number of impeller blades, and the blade angle. These characteristics will affect the flow patterns and mixing efficiency in your specific application.

It's also important to consider the materials of construction for the impeller. Ensure that the impeller can withstand the chemical and physical properties of your process fluid, as well as any potential abrasion or corrosion.

Electric Submersible Agitator For Sale

When it comes to purchasing an electric submersible agitator, there are numerous options available in the market. One notable manufacturer is Tianjin Kairun, which offers electric submersible agitators in two main types: casting type and punch type.

Cast-type agitators are generally more robust and suitable for heavy-duty applications. We generally offer excellent durability and can withstand harsh operating conditions. On the other hand, stamped-type agitators may have advantages in terms of weight and cost-effectiveness, making them suitable for light-duty applications or where budget constraints are an important factor.

When choosing between these types, consider your specific application requirements, including the process conditions, expected lifespan of the equipment, and your budget constraints.

If you're in the process of selecting an electric submersible agitator manufacturer, Tianjin Kairun welcomes inquiries. You can contact us at catherine@kairunpump.com for more information about our products and to discuss your specific requirements.

References:

1.Hemrajani, R.R. and Tatterson, G.B. (2004). Mechanically Stirred Vessels. In Handbook of Industrial Mixing: Science and Practice (eds E.L. Paul, V.A. Atiemo-Obeng and S.M. Kresta).

2. Myers, K.J., Reeder, M.F., Ryan, D., Daly, G. (1999). Get a fix on high-efficiency mixing. Chemical Engineering Progress, 95(11), 33-42.

3. Dickey, D.S. and Fasano, J.B. (2004). How geometry and viscosity influence mixing. Chemical Engineering, 111(12), 42-46.

4. Paul, E.L., Atiemo-Obeng, V.A., and Kresta, S.M. (eds.) (2004). Handbook of Industrial Mixing: Science and Practice. John Wiley & Sons.