ZYB series low-pressure gear type slag oil pump (below 1.5MPa)

The ZYB series low-pressure gear type slag oil pump relies on a pair of gears meshing to operate, and completes the suction and discharge of liquid medium by alternately changing the volume of the interdental cavity. The equipment adopts a horizontal layout and is structurally adapted to low-pressure conveying conditions, optimized for viscous media containing fine impurities.

The main components of the whole machine include the pump body, pump cover, driving shaft, driven shaft, gear components, pressure bearing parts, and shaft end sealing components. The gear and end face friction components are treated to prevent continuous erosion losses caused by fine particles. The pump chamber is equipped with a pressure balance channel to reduce the axial force generated during operation and alleviate component wear. The internal moving components rely on the self lubrication of the conveying medium, without the need for additional independent lubrication systems.

The power is driven by the coupling to rotate the driving gear, and the driven gear rotates synchronously in the opposite direction. When the gear disengages from the meshing area, the cavity volume increases to form negative pressure, and the medium flows into the tooth groove; The medium is transported to the oil pressure area along with the gear, and the gear mesh compresses the cavity volume. The medium is compressed and transported outward, achieving continuous feeding through circulation. The flow rate is linearly related to the rotational speed, and when combined with a speed control device, the conveying capacity can be adjusted. The equipment has basic self-priming ability and can be started and stopped multiple times after the initial injection of medium.

The sealing scheme can be combined with the temperature and viscosity of the medium to choose forms such as packing seal and mechanical seal. The whole machine adopts a split assembly structure, and during maintenance, the pump cover can be disassembled to replace the seals, check the status of gears and pressure bearing components, without the need to dismantle the pipelines as a whole.

Suitable for transporting viscous liquid materials without strong corrosiveness and with fine impurities, it can transport fluids such as residual oil, heavy oil, fuel oil, etc. Not suitable for media containing a large amount of hard particles and long fiber impurities, to avoid component jamming and excessive wear.

The equipment relies on a base for fixed installation, with standard foot holes reserved and flange interfaces adapted to conventional industrial pipelines. Correct coaxiality during coupling assembly to reduce vibration wear. It is recommended to install a filtering device in the suction pipeline to prevent large impurities from entering the pump chamber. Before starting, the medium inside the pump chamber needs to be retained, and it is forbidden to idle for a long time. The operating pressure of the system is controlled within the low-pressure range.

Daily maintenance includes regular cleaning of filters, inspection of seal leaks, monitoring of operating temperature rise and vibration. After conveying viscous materials, use an appropriate medium to circulate and flush the pump chamber to prevent material from drying up and adhering. Long term shutdown requires the removal of residual media from the cavity to reduce the possibility of corrosion and material solidification.