In numerous industrial sectors including petrochemical engineering,food processing,papermaking and printing&dyeing,the transportation of high-viscosity materials has long been a key technical difficulty plaguing production processes.Traditional centrifugal pumps suffer sharp efficiency degradation when conveying viscous media,and even encounter cavitation and startup failures.Thanks to its unique positive displacement working principle,the cam rotor pump delivers remarkable technical advantages in transporting high-viscosity heavy crude oil.

-Bonve Cam-type Double Rotor Pump-

The cam rotor pump,also known as the rotary piston pump,relies on periodic volume variation of sealed chambers formed between rotors and pump cavities as its core operating mechanism;the medium is drawn in and discharged under the effect of pressure difference.This working mode enables the pump to adapt to diverse complex fluid properties,and it possesses inherent structural advantages especially for viscous medium transportation.

Classified by the blade quantity and structural form of rotors,cam rotor pumps are mainly divided into two major types.The two-blade stainless steel rotor adopts a butterfly scraper structure,and this rotor is specially tailored for heavy crude oil media featuring poor fluidity,high viscosity,slag inclusion and heavily contaminated oil.With fewer blades,the rotor delivers stable flow output and low flow pulsation during operation;matched with a low operating rotating speed,it can effectively reduce disturbance to conveyed media.In addition,the two-blade rotor boasts relatively low suction resistance,with a self-priming height ranging from 4 to 5 meters,which can satisfy the demands of most conventional heavy crude oil transportation working conditions.

The other category is the three-lobe cam rotor,whose structural features make it more suitable for conveying low-density media.The most intuitive advantage brought by the three-lobe design is higher vacuum degree,and its maximum self-priming height can reach 8 to 9 meters,making it perform excellently under working conditions requiring strong self-priming capacity or low-density conveyed media.

From the perspective of overall performance,cam rotor pumps have multiple prominent technical strengths.Its compact structural design effectively cuts installation space occupation,facilitating on-site layout and routine maintenance.The pump exerts extremely low shear force on media during transportation,which can retain the original physical properties and component structure of materials to the maximum extent,an outstanding merit particularly vital for quality-sensitive materials.The equipment runs smoothly with slight vibration and low noise,exerting negligible adverse impacts on the surrounding production environment.As an important branch of rotor pumps,cam rotor pumps occupy a distinctive and vital position in the positive displacement pump family.

In practical industrial applications,the flow range of cam rotor pumps covers1 m³/h to 400 m³/h,and they can handle ultra-high-viscosity materials with viscosity up to 2,500,000 centipoises(cP).Such performance scope renders them especially applicable to scenarios featuring medium&low pressure,medium&small flow rate and high medium viscosity,making them verified reliable equipment after long-term practical tests in the field of high-viscosity heavy crude oil transportation.

In summary,benefiting from diversified rotor configurations and outstanding comprehensive performance,cam rotor pumps provide dependable technical solutions for efficient transportation of high-viscosity heavy crude oil.Only by selecting the appropriate rotor type in accordance with specific working conditions can the equipment exert optimal working efficiency and realize stable and efficient production operation.

Bonve pump always adheres to the philosophy of "Wholeheartedly Making Good Rotor Pumps," committed to providing global customers with customized conveying and mixing solutions. If you have technical inquiries, selection needs, case references, or other cooperation intentions related to Bonve rotor pumps, please feel free to contact us.  

Service Hotline: 0574-87588986 13586591794  

Official Website: www.bvpumps.com  

Business Email: market@bonvepumps.com  

We look forward to working with you to drive efficiency and innovation in industrial fluid transmission with precision technology.