A screw pump is a positive displacement pump that moves water or other fluids along the axis of one or more screws. In order to pressurize the fluid and transport it into the system, the machine is equipped with two counter-rotating screw rotors inside the machine for operation. When the screw rotates, the gas is compressed inside the machine and at the same time it is moved towards the exhaust port. The design of a screw pump is a simple structure, including inlet and outlet ports, timing gear, pressure relief valve, bearing and drive shaft. Next, we will show you the detailed parts information of the screw pumps. Inlet & Outlet Ports
A screw pump has separate ports for its inlet and outlet. The water is drawn into the pump and released through the intake and output ports. The design of the output and inlet makes sure there is adequate liquid medium when the pump eventually stops. Therefore, even if the straws are empty or dry, the straws will not dry out quickly. Timing Gear
To prevent metal-to-metal contact between the male and female rotor assemblies, the timing gear drives the driven screws. It creates a connection between the driven screws and the driver. When the drive screw is fitted with the optional timing gear, it transmits the rotation to the driven screw. If you need to switch off the pump for a short period of time, we also ensure that this connection does not occur. Pressure Relief Valve
Screw pumps belong to a type of positive displacement pump, and pressure is also generated when the outlet is closed. This means the pressure will be raised to cause serious issues, including breaking down internal pump parts and danger to the pump operator. For the purpose of protecting the pump, the operator, and any associated gear, all screw pumps are equipped with a relief valve. This valve returns excess pressure to the intake. In general, recirculating the exit fluid will help you reduce the extra pressure when you need it. Bearing
The vertically mounted screw pump's top bearings experience axial and radial strains in addition to severe loads during pump operation. Consequently, there is little load on the lower bearings. The main purpose of the bottom bearing is to maintain the alignment of the pump's parts. Meanwhile, the water screw pumps, roller bearings, and slide bearings arranged in parallel have very little loads. Drive Shaft
The pump components are connected to the drive motor by the driving shaft, and this connection is realized by employing a suitable flexible coupling set. This driving shaft plays an indispensable role in many types of pumps, which run from side to side to guarantee the driver screw's operation. Correct drive shaft alignment is therefore essential to maintaining the bearings and service life of the pump.
The screw pump with wide application has become the standard solution for industrial processes. Whether for oil and gas or ceramics and paints, progressive cavity pumps are the ideal choice.
