Which Pump is Best for Pumping High-Viscosity Liquids?
2024-07-18 16:34:46
Read:
Share:
In industrial production, it is often necessary to handle a variety of highly viscous liquids, such as grease, resins, coatings and certain chemicals. The special properties of these liquids require high pump handling capacity, so choosing the right pump to handle high viscosity liquids not only improves production efficiency, but also reduces maintenance costs and ensures the stable operation of the production line. In this article, we will introduce several pumps suitable for pumping highly viscous liquids in detail, and discuss their characteristics and applicable scenarios.
1. Positive Displacement Pumps
Positive displacement pumps are pumps designed to cope with highly viscous liquids. This kind of pump can realize the suction and discharge of liquid by changing the volume of the pump chamber, and its unique pump body structure and material can easily deal with various viscosity and nature of the liquid. Therefore, volumetric pumps have a wide range of applications in petrochemical, paint, grease and other industries. For example, in the process of paint production, it is necessary to accurately control the flow and pressure of the paint, and the volumetric pump can meet this demand and ensure the uniform delivery of the paint.
2. Gear Pump
Gear oil pumps are another type of pump commonly used to pump highly viscous liquids. Gear pumps are ideal when ordinary centrifugal pumps are unable to meet the needs of viscous liquids. It works by relying on the meshing motion of two or more gears to propel the liquid, and is particularly suitable for pumping grease and certain chemicals. The advantages of gear pumps are their simplicity, reliability and ability to handle liquids containing some solids. However, it should be noted that gear pumps may generate large heat when conveying high-viscosity liquids, so you need to reasonably control the speed and flow of the pump during use to avoid overheating damage.
3. Diaphragm Pumps
The air operated diaphragm pump utilizes compressed air to drive the diaphragm for operation and is highly adaptable. It is capable of handling corrosive liquids containing solid particles, and at the same time, it can demonstrate excellent machine performance under complex working conditions. The advantages of pneumatic diaphragm pumps are that they do not require lubrication, have good sealing, are not easy to leak, and are able to select diaphragms made of different materials according to different working conditions. In food, pharmaceutical and other industries with high hygiene requirements, air operated diaphragm pumps are favored for their non-polluting and easy-to-clean features.
4. Screw Pumps
Screw pumps excel in conveying viscous media. It pushes liquids from one end to the other by means of two intermeshing screws rotating inside the pump casing. Rotary screw pumps are particularly suitable for handling highly viscous fluids and media containing suspended solid particles, such as slurries and paints. By adjusting the motor speed, the screw pump can effectively squeeze and discharge the liquid to the outside, realizing stable and continuous conveying. In addition, the screw pump has the advantages of strong self-priming ability, smooth operation, low noise, etc. It has superior handling ability in the fields of sewage treatment and petrochemical industry.
