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Oil separator

The function of oil separator is to separate lubricating oil in 
high-pressure steam discharged from the refrigeration compressor 
to ensure safe and efficient operation. According to oil separation
principle of reducing the air flow speed and changing the air flow 
direction, the oil particles in high-pressure steam are separated 
under action of gravity,mostly used in large refrigeration systems

About Us
Zhejiang Brozer Refrigeration Technology Co., Ltd.
Zhejiang Brozer Refrigeration Technology Co., Ltd.
We are a professional China Oil separator manufacturer and Oil separator supplier, Our main products cover all kinds of cold storage, cold storage, fresh-keeping, other cold storage, constant temperature workshops, industrial chillers, various types of non-standard processes refrigeration... and other equipment. We also have a strong R&D team that independently developed box condensing units, open units, water-cooled compression condensing units, air-cooled condensing units, all-in-one and split units, low-temperature screw units, parallel units, industrial chillers, D series Air cooler, series double-sided side outlet air cooler, water flush frost air cooler series, air-cooled condenser series, etc. Products are exported to more than 80 countries and regions around the world.
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Oil separator Industry knowledge

How is the rotating chamber or bend inside the oil separator designed?

Overview of the design of the rotating chamber or bend inside the oil separator
The design of the rotating chamber or bend inside the oil separator is a careful layout based on the principle of centrifugal separation. The core is to separate the lubricating oil droplets from the high-speed flowing steam through the centrifugal force generated by rotation. This design not only requires efficient separation, but also takes into account the dynamic characteristics of the fluid, the corrosion resistance of the material and the convenience of maintenance.

Design principles and elements
1. Application of the principle of centrifugal separation
The design of the rotating chamber or bend makes full use of the principle of centrifugal separation. When high-pressure steam carries lubricating oil droplets into the rotating area, the steam is forced to rotate and flow along a specific path. Due to its large mass and inertia, the oil droplets are pushed to the outside of the rotating chamber under the action of centrifugal force, while the purer steam continues to flow to the center or outlet, thereby achieving the initial separation of oil and gas.

2. Shape and size of the rotating chamber
The shape and size of the rotating chamber are key factors affecting the separation efficiency. Common shapes include cylindrical, conical and spiral shapes. The cylindrical rotating chamber has a simple structure and is easy to process and maintain; the conical rotating chamber can better guide the oil droplets to the bottom and reduce the residue. In terms of size, the diameter, length and rotation radius of the rotating chamber need to be optimized according to the specific parameters of the refrigeration system (such as flow, pressure, and oil content) to ensure the best separation effect.

3. Bend design and fluid dynamics
The design of the bend needs to take into account the requirements of fluid dynamics to reduce flow resistance and avoid the generation of vortices and dead zones. Reasonable bend angles and curvature radius can guide the steam to transition smoothly while enhancing the centrifugal separation effect. In addition, the smoothness of the inner wall of the bend is also crucial to reduce friction resistance and oil droplet adhesion.

4. Material selection and corrosion resistance
The rotating chamber or bend inside the oil separator needs to be made of corrosion-resistant, high-temperature-resistant and high-strength materials. This is because the high-pressure steam in the refrigeration system often contains certain corrosive substances and has a high operating temperature. Therefore, high-quality materials such as stainless steel and alloy steel are the first choice. These materials not only have good mechanical properties, but also maintain stable separation effects under harsh working conditions.

Optimization strategy
1. Multi-stage rotating chamber design
To improve separation efficiency, the oil separator can adopt a multi-stage rotating chamber design. Each stage of the rotating chamber can further centrifuge the steam, thereby reducing the oil content step by step. Although this design increases the manufacturing cost and complexity, it can significantly improve the separation effect and is suitable for occasions with extremely high oil content requirements.

2. Automatic cleaning and drainage function
To prevent impurities and oil stains from accumulating in the rotating chamber or bend, the oil separator can be equipped with an automatic cleaning and drainage system. By regularly flushing or scraping the inner wall, the accumulated oil droplets and dirt are discharged from the system to maintain the cleanliness and separation performance of the rotating chamber.

3. Intelligent monitoring and control
Combined with modern sensor technology and intelligent control systems, the oil separator can realize real-time monitoring and intelligent regulation of the operating status. By monitoring parameters such as rotation speed and oil droplet concentration, the operating parameters can be adjusted in time or early warning signals can be issued to ensure that the oil separator is always in the best working condition.