Gear metering pump _ Gear metering pump Operating instructions

Gear pump is a kind of gear pump, only a specific gear pump can be called a gear metering pump, gear metering pump is a kind of metering pump, so the gear metering pump has a metrology. Gear metering pump is a special design, the selection of special materials, using a special process, the use of special equipment, after special treatment, and processed into. More and more applications in gear pump equipment. Gear metering pump was first applied to foreign equipment. With the import of equipment to enter the Chinese market, after so many years of development, excellent Division gear metering pump, whether from the performance or accuracy from the processing of imported products can stand on a line. At the same time, some domestic gear metering pumps have successfully replaced the gear metering pumps on some imported equipment and realized the localization of gear metering pumps. Gear metering pump works Gear metering pump is a pair of intermeshing gear, one is the driving gear, and the other is a passive gear driven by the pinion gear meshing rotation. The gear leaves a small clearance directly on the pump housing. When the gear is rotated, the tooth is gradually disengaged from the suction liquid chamber, the inter-tooth sealed volume increases to form a partial vacuum, and the liquid is sucked into the suction chamber under the pressure difference. As the gear rotates, the liquid is split between the gears And the shell is pushed forward by the gear and sent to the drainage chamber. The two gears in the drainage chamber gradually mesh with each other to reduce the volume and the liquid between the gears is squeezed to the drainage port. Because gear metering pump machining accuracy requirements are very high, both the gear tooth surface accuracy, or gear and housing, gear and tooth top with the precision requirements are very high, so gear metering pump but the displacement is certain. In other words, every revolution of the gear, the volume of liquid discharged is constant, so that the gear pump can discharge a corresponding amount of liquid as the gear pump rotates. In general, we get the gear pump flow by measuring the speed of the gear pump. Benefits of Gear Metering Pumps Gear metering pumps offer high accuracy and ensure consistent, repeatable flow at temperatures up to 0.3% over a wide range of temperatures, viscosities and pressures. No pulse output, repeat the advantages of good performance characteristics. Gear metering pump operation instructions Gear metering pump quick operation instructions 1, connected to the power, the control panel will display the speed setpoint. 2, if the speed control dial in the control panel, available ▲ ▼ keys to change the value of the size, start the operation panel can be directly operated by the RUN and STOP keys. Other keys basically do not need to use. 3. If the remote control switch is installed, turn on the remote control switch at startup, and when it is stopped, disconnect the remote control switch or press the STOP button on the control panel. 4, such as the use of analog signal speed, please turn on the signal source, and adjust. Gear metering pump operation precautions 1, the installation of gear metering pump, you should first confirm the coupling on the nylon sleeve can be flexible sliding. If stuck, the pump must be re-installed, so that the nylon sleeve can be a flexible slide to ensure that the pump shaft alignment. 2, Gear metering pumps are strictly forbidden to run idly and the materials to be pumped shall not contain hard solid particles. 3, Before connecting the pipeline, the pipeline should be cleaned and purged to ensure that there is no foreign matter in the pipeline to prevent foreign matter from entering the pump and causing damage to the pump. 4, from the motor end, this pump is turned clockwise, see the pump body on the sign, the import on the left, the outlet on the right. 5, the new gear metering pump when first started, the speed should not be too fast, 30pm above is good, the outlet should be pressure 1-2bar, time is not more than three minutes, so that the material into the gap with the Department of lubrication. Daily start, the speed should be from low to high, should avoid direct high-speed start. In summary, the above is Xiaobian finishing gear metering pump all the relevant knowledge, hope buyers purchase gear metering pump products help.