KCB gear pump

KCB gear pump belongs to the external meshing volumetric gear conveying equipment, mainly relying on the volume change of the cavity during the meshing process of a pair of gears to complete the suction and discharge of liquid medium. The overall structure is arranged horizontally, with a neat layout and simple disassembly and maintenance procedures. This pump can be made of different materials, sealed structures, and shell forms according to the usage scenario, and is suitable for liquid transportation in viscosity ranges. It is suitable for conventional working conditions such as industrial fluid transportation, equipment lubrication, and fuel transportation, and can operate continuously or intermittently.

The main body of the equipment consists of the pump body, pump cover, driving gear, driven gear, transmission shaft, bearings, sealing components, and built-in overflow structure. The gears have undergone heat treatment processing, resulting in stable tooth profile accuracy and uniform meshing. A reflux channel is installed inside the pump chamber to balance the pressure inside, reduce the load on bearings and friction pairs, and minimize operational wear. The equipment can be made of ordinary cast iron or stainless steel materials according to the characteristics of the medium, and some structures can be equipped with insulation sleeves to adapt to low-temperature and easily solidified medium conditions. When transporting flammable and explosive media, the copper gear structure can be replaced to reduce the risk of friction. The moving parts of the equipment rely on the medium to lubricate themselves, without the need for a separate lubrication system.

When the equipment is running, the motor drives the gear to rotate through the coupling, and the volume of the cavity on the disengagement side of the gear increases, forming negative pressure to suck in the medium; The gears continue to rotate, bringing the medium into the oil pressure chamber. The gears mesh and compress the volume, achieving the pressure boosting and conveying of the medium, and completing the continuous conveying operation in a cycle. The device flow rate varies linearly with the speed, and the conveying flow rate can be changed through speed regulation. The equipment has conventional self-priming capability and can be repeatedly started and stopped after the initial infusion.

The pump body is equipped with a built-in overflow channel. Under pressure holding conditions such as pipeline blockage and outlet closure, the medium can flow back into the chamber, playing a role in pressure relief and avoiding damage to the structure caused by abnormal pressure rise. This structure is only used for overload protection and is not intended for long-term voltage stabilization. If voltage stabilization is required, an external pressure regulating pipeline can be connected. The pump chamber flow channel is unobstructed, with no complex dead corners inside, making it easy for medium circulation and daily cleaning.

Equipment sealing can be matched with different structures based on the temperature, viscosity, and corrosiveness of the medium, including packing seals, mechanical seals, and other forms. It can adapt to different working conditions such as room temperature, low temperature, slight high temperature, and slight corrosion. The overall structure adopts a split structure, and the pump cover, seals, and gear components can be disassembled separately during maintenance without the need to dismantle the pipeline as a whole, making the maintenance process simple.

The medium adaptation range is liquid media that do not contain hard particles, fiber impurities, and have lubricity. It is suitable for sports viscosity of 5-1500mm ²/s and can transport fluids such as diesel, fuel oil, lubricating oil, mechanical oil, vegetable oil, etc. Cast iron structure is suitable for conventional industrial oil transportation, stainless steel structure is suitable for clean and slightly corrosive media, and copper gear structure is suitable for working conditions. The equipment is not suitable for working conditions with strong corrosion, high solid particle content, and volatile high-risk media.

The installation adopts a horizontal base fixing method, with standard installation holes reserved, and flange interfaces adapted to conventional industrial pipelines. The installation process requires correction of coaxiality to reduce operational vibration. The pipeline needs to be equipped with a filtering device to reduce impurities from entering the pump chamber. Before starting the device, there should be a medium stored in the cavity, and it is forbidden to idle for a long time. Before using the insulation structure, the chamber can be preheated in advance to avoid the influence of medium solidification on operation.

Daily maintenance mainly involves cleaning the filtration device, checking the sealing status, and observing the operation vibration and temperature rise. After conveying viscous media, corresponding clean media can be used to circulate and rinse the chamber to avoid residual drying of the media. Long term shutdown requires draining the medium inside the cavity to prevent static solidification and corrosion.

The equipment has a mature structure, high universality of components, stable operating conditions, and is suitable for conventional industrial liquid transportation scenarios. It is mostly used for fuel transportation, lubricating oil supply, fluid transfer and other working conditions, with low maintenance workload and suitable for long-term stable operation needs.