TheSpiral or helical pump is one of the types of centrifugal pumps used to transfer fluid with high pressure and low flow rate.in industry processes, increasing the efficiency and reliability of fluid transfer is very important, and Spiral or helical pumps are widely used in the industry due to their reliability and high efficiency. In this article, we introduce and review the types of industrial Spiral or helical pumps and also analyze the design, performance, applications and advantages of these pumps compared to other types of pumps.
What is an industrial Spiral or helical pump?
Industrial Spiral or helical pumps, also known as spindle screw pumps or rotary positive displacement pumps, are powerful industrial pumps designed to transfer high pressure fluids in industrial processes.
A Spiral or helical pump consists of a helical rotor, called a spindle, that rotates inside a cylindrical cavity. This rotor traps the fluid from the pump inlet and transfers it to the pump outlet by increasing the pressure.
TheSpiral or helical pump performs the pumping action continuously and gently , and for this reason, it is very suitable for transferring viscous fluids, abrasive slurries and sensitive fluids that shouldnot be subjected to shear force.
Design of Spiral or helical pump
The rotor of a Spiral or helical pump is made of hardened steel or corrosion- resistant alloys and has precision spiral threads that engage with the internal cavity of the pump. This cavity is precisely designed to match the geometry of the rotor . by having a precise fit, there is minimal clearance between the rotor and the cavity walls. As the rotor rotates within the cavity, the fluid is displaced along the helical threads of the rotor, creating a smooth, uniform flow.
Types of Spiral or helical pumps
1. Spiral or helical pump” mono screw or single rotor”
Single- screw pumps or Spiral or helical pump” mono screw or single rotor” , also known as progressive cavity pumps or eccentric spiral pumps, consist of a single helical or spiral rotor that rotates inside a double- walled stator.
These pumps transfer the flow in a gentle manner without causing pulsation in it, and for this reason, they are suitable for moving shear- sensitive fluids and applications that require precise flow control.
2. Spiral or helical pump “double screw”
Twin screw screw pumps have two connected helical rotors that rotate in a housing. The rotors have opposite directions of rotation. As the rotors rotate, the fluid is trapped and transported axially along the threads of the rotors, resulting in a continuous, pulsating flow.
Double screw pumps are suitable for use in the oil and gas, marine, and chemical industries due to their high efficiency, self- priming capability, and ability to support a wide range of viscosities.
3. Spiral or helical pump “ three- screw “
Spiral or helical pump “ three- screw “ or Triple screw pumps, consist of three helical rotors that are concentrically placed inside a cylindrical housing. Two primary rotors are placed on either side of a smaller central rotor. As the rotors rotate, the fluid is transferred axially along the threads of the rotors, resulting in a smooth and continuous flow.
Spiral or helical pump “ three- screw “,have advantages such as high efficiency, low pulsation and precise flow control, which make them suitable for applications that require high pressure pumping and flow rate maintenance, such as fuel transfer, hydraulic systems and lubrication systems.
4. Spiral or helical pump “ multi screw “
(quintoplex and septoplex
Spiral or helical pump “Multi screw pumps”, have four or more intermeshing helical rotors arranged in a cross configuration in a common housing . these pumps are capable of producing multiple flow channels, resulting in high flow rates and uniform pressure distribution.
Quintuplex pumps have five rotors, while septoplex pumps have seven rotors, and both constructions offer greater pumping capacity and efficiency compared toSpiral or helical pumps “single or twin screw”.
TheSpiral or helical pump” multi- screw”, is commonly used in applications that require high flow rates and precise pressure control, such as oil and gas pipelines, chemical processing plants, and water treatment facilities.
5. Spiral or helical pump” Archimedean “
Spiral or helical pump “Archimedean “ that known as Archimedes screw pumps, are pumps that date back to ancient Greece and Egypt . these pumps consist of a spiral or helical rotor that is installed inside a recess or chamber at an angle inclined to the horizon.
As the rotor rotates, it carries the fluid from the lower end to the higher end, where it is discharged. Archimedean screw pumps orSpiral or helical pumps , are commonly used to provide head and convey water, sewage and other fluids in applications such as irrigation, drainage and sewage pumping.
Applications of Spiral or helical pump
Industrial Spiral or helical pumps ,are widely used in a wide range of industries due to their versatility reliability and efficiency. In the following, we examine some of the important applications of these types of pumps in the industry.
1. chemical production and processing processes
Spiral or helical pumps, are widely used in chemical manufacturing and processing processes to transfer corrosive chemicals (anti- acid pumps), viscous polymers and abrasive slurries. Their strong structure and compatibility with all types of fluids make them ideal for use in chemical facilities.
2. oil and gas industries
In the oil and gas industry, Spiral or helical pump are used to transport crude oil, refined products, and drilling fluids. Spiral or helical pumps have the ability to transfer fluids with high viscosity and abrasive particles, and this feature has made them known as oil and gas industry pumps.
3. food production industries
Spiral or helical pumps, play an important role in the food and beverage industry, facilitating the transfer of viscous food products such as syrups, sauces, and dairy products. The hygienic design, ease of maintenance, and gentle pumping action of Spiral or helical pumps are very useful in food processing and packaging.
4. marine and offshore applications
Spiral or helical pumps, are widely used in marine and offshore applications including ship fuel transfer, ballast water management and offshore drilling operations. Compact structure and design, high reliability , and the ability to handle varying operating conditions make Spiral or helical pumps ideal for marine and offshore environments. Salt water pumps can be used in this application.
Advantages of industrial Spiral or helical pumps
IndustrialSpiral or helical pumps have high volumetric efficiency and can maintain the flow rate
Uniformly and without impact, resulting in minimal shearing force to the fluid. These pumps are very versatile and adaptable and can transfer a wide range of fluids including viscous liquids, abrasive slurries and shear sensitive materials.
In addition, industrial Spiral or helical pumps work with a minimum level of noise and vibration and
there fore, are suitable for installation in noise- sensitive industrial environments or residential areas. The uniform and silent operation of the industrial Spiral or helical pump, increases the comfort of the operator and reduces the risk of equipment fatigue.
Where to buy a Spiral or helical pump?
Abravan company, which is known as one of the producers of all kinds of pumps in iran, has also released Spiral or helical pumps to the market. You can buy abarvan products with 18 months warranty and 10 years service after sales.
There are Many points that you should know when buying industrial pumps. Get in touch with our experts for a free consultation so that they can introduce you to the best product after checking.