Agitators for Storage Tanks (Crude and Refined Oil)
The storage of crude oil is the beginning of the process in the petrochemical industry. During this storage, mixing tasks such as BS&W (Basic Sediment & Water), heat transfer and homogenization have to be performed. With our know-how in the field of side-entry agitators, supported by CFD analyses (Computational Fluid Dynamics), EKATO offers fixed and swiveling agitators, which enable efficient and highly effective recirculation.
…and EKATO is at the mix in terms of mobility, heat, petrochemicals, lubricants and bitumen.
In oil storage tanks, EKATO relies on proven technology and can build on more than 90 years of experience. On request, the design can also be confirmed by CFD (Computational Fluid Dynamics) numerical flow simulation.
For mixing tasks like effective mixing of crude oil considering and controlling the sand and water content, BS&W (bottom sludge and water / base sediment and water), mixing of different crude oils, a constant temperature distribution in the tank or for the mixing of refined oils, EKATO provides the appropriate solutions.
Portfolio
EKATO Side-Entry Agitator ES 2000 SW
The swiveling EKATO side-entry agitator for crude oil storage tanks is a compact, state-of-the-art technology. It uses a single or double mechanical seal system according to API 682, modified for agitators. It represents a reliable solution for the oil and petrochemical industry. Manual adjustment on site or automatic positioning in the process control system (PCS) are available options to swivel the agitator.
The upward buoyancy generated by the mixing stream in crude oil storage tanks keeps the controlled sand and water content (BS&W) in motion to counteract local accumulation and possible build-up of deposits on the tank bottom.
In order to reach the entire surface of the tank bottom, one or more swiveling side-entry agitators are used, depending on the tank size. The optimum alignment at the vessel wall is the decisive factor for trouble-free operation of the plant.
Impeller stream length and pumping capacity determine the required number of agitators per tank. The swiveling EKATO side-entry agitator has been designed as a complete unit, which allows assembly and disassembly on the vessel in the assembled state.
Optimal Plant Operation
The decisive factors for trouble-free operation of the agitators are:
Optimal alignment at the vessel wall
Impeller stream length
Pumping capacity of the impeller
Our operational experience in the field of side-entry agitators, together with computational fluid dynamics (CFD) simulations, allows us to determine the optimum number and orientation of agitators around the tank circumference. Reliable, easy-to-maintain, and economical operation are the main benefits based on our knowledge and know-how of side-entry agitators.
Swiveling toothed belt design
Antistatic high torque drive (HTD) toothed belt
Shut-off device with positive locking (clamping flange), for maintenance or seal replacement with filled vessel, max. 7 bar (abs.)
EKATO mechanical seal in cartridge design, modified for agitators
Swiveling device, manual or automatic adjustment
High efficiency impeller (EKATO propeller)
Product wetted material in stainless steel, in accordance with NACE
Motor Power
7,5 - 55 kW
Motor Power
60 - 100 mm
Operating Pressure
Atmospheric - liquid column
Approval
ATEX 2014/34/EU, EAC TR-ZU 010/012-2011 approval
EKATO Side-Entry Agitator ES 2000 / ES 2000 Z
Fixed toothed belt design
Antistatic high torque drive (HTD) toothed belt
Shut-off device with positive locking (clamping flange), for maintenance or seal replacement with filled vessel, max. 7 bar (abs.)
EKATO mechanical seal in cartridge design, modified for agitators
Optionally with adapter flange design
High efficiency impeller (EKATO propeller)
Product wetted material in stainless steel, in accordance with NACE
Motor Power
7,5 - 55 kW
Motor Power
60 - 100 mm
Operating Pressure
Atmospheric - liquid column
Approval
ATEX 2014/34/EU, EAC TR-ZU 010/012-2011 approval
Fixed Gearbox Design ES 2000
The design with a gearbox is available for motor power ranges from 3 – 22 kW and larger diameters of the agitator.
Agitator design
Motor with various gear units
Shut-off device with positive locking (clamping flange), for maintenance or seal replacement with filled vessel, max. 7 bar (abs.)
EKATO mechanical seal in cartridge design according to API 682 publications, modified for agitators
Optionally with adapter flange design
High efficiency impeller (EKATO propeller)
Product wetted material in stainless steel, in accordance with NACE
Motor Power
3 - 22 kW
Shaft Diameter
40 - 80 mm
Operating Pressure
Atmospheric - liquid column
Approval
ATEX 2014/34/EU, EAC TR-ZU 010/012-2011 approval
R&D Test Tank
With our new test tank with a tank diameter of 3.2 m, a height of 1.74 m and a total volume of 14 m³, an improved scale-up to operating scale has been realized. Up to 10 side-entry agitators can be operated, and the behavior of crude oil can be investigated in depth. Optionally, the scale-up design can be confirmed with a CFD analysis.
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Related Topics
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Side-Entry Agitator ES
EKATO ES agitators with are designed for the lateral installation in vessels of any size. The shaft is sealed by a mechanical seal.
Top-entry and side-entry agitators (e.g., EM 2000, ES 2000, MD/SD)
Solutions for storage tanks, open and closed vessels
Simple mechanical seals
Short delivery times, high cost-efficiency
On-site commissioning and service
What does “Number of sealing faces” mean?
Single-acting mechanical seals These seals have one sealing surface and only seal in one direction. They are generally simpler in design and are commonly used in applications where pressure is applied from only one side.
Double-acting mechanical seals These seals have two sealing surfaces and can seal in both directions. They are ideal for applications where pressure may come from both sides or where a higher sealing performance is required.
Triple-acting mechanical seals These are less common and used in specialized applications that require a more complex sealing setup. They offer additional sealing surfaces or mechanisms to ensure reliable sealing even in highly demanding environments.
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