Positive Displacement Screw Pump for Viscous Fluid Transfer Applications
Positive Displacement Screw Pump from Shanghai Gaotian is built for smooth transfer of viscous liquids sludge and shear sensitive media with stable flow. The pump selection focuses on stable flow reliable sealing practical installation and service support for export projects. It is suitable for sludge transfer chemical processing food grade liquid handling and industrial fluid delivery where buyers need consistent performance clear model matching and dependable after sales communication from a pump manufacturer.
Positive Displacement Screw Pump for Viscous Fluid Transfer Applications Applications and Related Pump Solutions
Positive Displacement Screw Pump Introduction
The screw pump is a type of positive displacement pump that relies on the rotary motion of the screw and liner to convey liquids. Its characteristics include simple structure, stable flow rate, minimal pressure pulsation, convenient flow rate and pressure adjustment, and low noise. It has been widely used in industries such as petroleum, chemical, pharmaceutical, papermaking, food, and environmental protection.
Classification of Positive Displacement Screw Pump
Screw pumps can be classified into single-screw pumps, twin-screw pumps, and triple-screw pumps based on the number of screws. Single-screw pumps have only one screw, twin-screw pumps have two screws, and triple-screw pumps have three screws. Their main differences lie in the characteristics of the conveyed medium, pressure, and flow range.
Working Principle of Positive Displacement Screw Pump
The working principle of screw pumps is that when the motor's rotary motion drives the screw to rotate, the engagement space between the screw and liner gradually increases, pushing the liquid from the suction end to the discharge end with higher discharge pressure. The liquid is uniformly pushed into the pipeline, resulting in stable discharge pressure and continuous flow.
Application Scope of Positive Displacement Screw Pump
Petrochemical Industry: Used for conveying various oils, chemical products, and additives.
Pharmaceutical Industry: Used for conveying drugs, raw materials, and intermediates.
Papermaking Industry: Used for conveying pulp, coatings, and chemicals.
Food Industry: Used for conveying various foods and beverages.
Environmental Protection Industry: Used for conveying sewage, waste oil, and exhaust gases, among other waste products.
Other Fields: Used for conveying various viscous and corrosive media, such as grease, paint, and coatings.
Precautions for Using Screw Pumps
During installation, it is essential to keep the pump horizontal to avoid affecting its performance and service life.
Before starting, ensure that the pipelines and inlet and outlet valves are clean and free of obstructions.
After shutdown, flush the liquid from the inlet and outlet pipelines to prevent residual liquid from solidifying or corroding the equipment.
When transporting flammable and explosive media, use nitrogen or other inert gases instead of air for sealing.
During pump operation, pay attention to the smoothness of the sound and check for abnormal vibrations and friction. If any issues arise, stop the pump immediately for inspection and troubleshooting.
Regularly inspect the pump's bearings, shaft seals, and packing to ensure their normal operation and service life.
After long-term shutdown, conduct a comprehensive inspection and maintenance of the pump to ensure its normal operation and service life.
When replacing bearings, shaft seals, and other components, pay attention to matching the models and specifications to ensure correct installation and effectiveness.
Positive Displacement Screw Pump section drawing
1. Inlet
2. Pull rod
3. Stator
4. Screw shaft
5. Universal joint pin connection
6. Outlet
7. Connecting shaft
8. Packing seat
9. Packing gland
10. Bearing seat
11. Bearing
12. Drive shaft
13. Bearing cover
14. Coupling
15. Baseplate
16. Motor
Close-up Photographs Of Screw Pumps
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