3QGB usually refers to a model of triple screw pump. The following is a detailed introduction about it:
Structural Characteristics
The 3QGB series triple screw pumps are positive displacement pumps, mainly composed of components such as screws and pump sleeves. Their structures are simple and compact, with relatively small volumes, which are convenient for installation and maintenance.
They are made of cast steel, possessing good strength and corrosion resistance, and can adapt to various working environments. There are two structures, namely with heat preservation and without heat preservation. For high-viscosity media, it is recommended to use the screw pump with heat preservation structure to reduce the viscosity of the medium and facilitate transportation.
Working Principle
Relying on the rotating screws that mesh with each other inside the pump sleeve, the medium to be transported is enclosed in the meshing cavity and continuously and uniformly pushed to the discharge port along the axial direction of the screw, thus providing a stable pressure for the system.
Performance Advantages
Stable Flow Rate: It can ensure a stable linear flow and uniform output flow rate. In fields such as industrial production, it can ensure the stability and accuracy of the technological process. For example, it can accurately transport chemical raw materials in chemical production.
Low Pressure Pulsation: The pressure fluctuations generated during operation are relatively small, making the system pressure more stable. This helps protect the connected pipes, valves and other equipment, reducing the risk of equipment damage and leakage caused by pressure shocks.
Low Noise: The noise generated during the operation process is relatively low, creating a relatively quiet working environment, which is beneficial to the physical and mental health of the operators. At the same time, it also indicates that the equipment operates smoothly with small mechanical vibrations, indirectly reflecting the good performance and long service life of the equipment.
High Efficiency: It performs excellently in converting mechanical energy into the kinetic energy and potential energy of the medium, having a relatively high energy conversion efficiency. It can reduce energy consumption and save production costs. In the long-term operation, it can bring significant economic benefits to enterprises.
Scope of Application
Transported Medium: It is suitable for transporting various non-corrosive oils and oil-like liquids, such as fuel oil, hydraulic oil, heavy oil, lubricating oil, asphalt, etc. It can also transport liquids with a viscosity generally ranging from 30 to 760 mm²/s. For high-viscosity media, they can be transported after the viscosity is reduced by heating, and the temperature generally does not exceed 350 °C.
Applied Industries: It is widely used in numerous industries such as petroleum, chemical engineering, machinery, chemical fiber, metallurgy, electric power, shipping, glass, and highway. In different industrial scenarios, it plays an important role in transporting materials and is one of the indispensable equipments in industrial production.
Sealing Performance
The mechanical sealing method is adopted, and different materials of mechanical sealing friction parts can be selected according to the different media transported by users. For high-viscosity media, cemented carbide materials with high mechanical strength and good wear resistance will be selected to ensure good sealing performance under harsh working conditions such as high temperature, preventing medium leakage and avoiding environmental pollution and waste of resources.
Installation Methods
There are various installation methods, such as horizontal type, flange type, vertical oil-immersed type and suspended type, etc. Users can flexibly select the appropriate installation method according to the actual working conditions and installation space requirements to meet different production needs.
