Gear pump In the jargon, a gear pump, also called a positive displacement unit, is like a piston in a cylinder that is squeezed out mechanically as one tooth enters the fluid space of the other tooth. Because the fluid is incompressible, the liquid and the tooth can not occupy the same space at the same time, so the fluid is eliminated. As a result of the continuous meshing of the teeth, this phenomenon occurs continuously and thus provides a continuous discharge at the outlet of the pump, the same amount of discharge per revolution of the pump. What are the requirements for gear pump maintenance? The most basic form of the gear pump is that two gears of the same size are engaged with each other in a close-fitting housing. The interior of the housing is similar to "8" shape. Two gears are installed inside. The outer diameter and both sides of the gear and the housing Body closely with. The material from the extruder enters the middle of the two gears at the suction port and fills this space, moving along the housing as the teeth rotate, finally exiting when the two teeth mesh. Gear pump with the continuous rotation of the drive shaft, the pump will discharge fluid without interruption. Gear pump flow directly with the pump speed. In fact, there is a small amount of fluid loss in the pump, which makes it impossible to achieve a pump operating efficiency of 100% because these fluids are used to lubricate both sides of the bearing and gear, and the pump body can never be gap-free Can not make the fluid 100% discharged from the outlet, so a small amount of fluid loss is inevitable. However, the gear pump still works well and still achieves efficiencies of 93% to 98% for most extruded materials. Gear pumps For fluids with viscosities or densities that vary throughout the process, such gear pumps are not affected too much. If you have a damper, such as a screen or a restrictor on the side of the outlet, the pump will push fluid through them. If this damper changes at work, ie if the screen becomes dirty, clogged, or the backpressure of the restrictor is increased, the pump will still maintain a constant flow until the mechanical limit of the weakest part of the device is reached (Usually fitted with a torque limiter). There is actually a limit to the speed of a gear pump, which depends mainly on the process fluid. If the oil is delivered, the gear pump can rotate at a very high speed, but when the fluid is a highly viscous polymer When the melt, this limit will be greatly reduced. In the oil transfer system can be used as transmission, booster pump. In the fuel system can be used as delivery, pressurization, injection fuel pump. In the hydraulic transmission system can be used as a hydraulic pump to provide hydraulic power. In all industrial areas, can be used for lubricating oil pump; 1, always check the oil level position, do not meet the requirements must be adjusted to meet the requirements. In the stainless steel gear pump operation, the oil level to the oil standard shall prevail. 2, regular inspection of oil quality, oil deterioration should be found in a timely manner to replace the new oil, to ensure that the pump is working properly. 3, the oil change period according to the actual conditions of use and can meet the performance requirements and other considerations, by the user discretion. General new pump, removal of clean and dry gas, it is recommended to change the oil about 100 hours time. Oil to be seen after the black metal powder, the oil may be extended after the expiration date. 4, under normal circumstances, the pump should be carried out after 2000 hours of maintenance, inspection æ¡· plastic seal aging, check whether the exhaust Valve cracking, cleaning the valve plate and the exhaust valve seat dirt. Clean the entire pump chamber components, such as rotor, rotary blade, spring and so on. General use of gasoline cleaning, and drying. After cleaning the rubber parts with a dry cloth can be dry. 5, the same conditions in the tube to clean up, to ensure smooth piping. 6, should be reassembled after the trial run, usually 2 hours empty and oil change twice, because the cleaning will be left in the pump a certain amount of volatile, to be functioning properly, and then put into normal work. Asia Fluid Network () Editor: Huang Nengwen, QQ:
Remote Control, Smar Remote Control,Ir Remote Control,Wifi Remote Control
LONG TERM ELEC. CO., LTD , https://www.longterm-hvac.com