Compounding System Line,Newest Co-Kneader,Co-Kneader Bio-Degradable Compounds,Forming Masterbatch Extruder JIANGSU XINDA TECH LIMITED , https://www.xindaextruder.com
Improved effect Through the improvement of a water pump in the drainage ditch, when the rainwater in the ditch goes up, it is not necessary to disassemble the water pump, and the water discharge is not interrupted, thus ensuring the timely draining of water in the 1460th ditch, which is in favor of timely discharge of the floodwater. At the same time to avoid the electric shovel under heavy rain, must drive to the top of the ramp flood control malpractice, to ensure the production efficiency of the equipment. Symptom I unit has a double-suction centrifugal pump with packing seal, long-term water leaks (outward spatter state), thought it was packing wear, but the new packing was about a week was ground into powder, still not from To seal the serious impact on the operation of the pump.
Analysis of the reasons for root packing leakage packing gland is not tight, the packing is ground into a powder because the packing gland pressed too tight, resulting in tight packing tightly on the sleeve increased friction, and After the new packing is able to intermittent leakage, and the reasons for these two phenomena are contradictory. Thus ruled out due to the tightness of the packing gland lead to the possibility of failure. Then there is a possibility that the installation location of the seal ring is not accurate, the seal ring hole on the water seal is not aligned, high pressure water can not enter the packing chamber will not play the role of lubrication and cooling and accelerated wear and tear of the filler? After all the possibilities have been ruled out, it is thought that the occurrence of this phenomenon happens by chance on this pump, and if there is any stuffing box failure in another pump, the reason for this can be quickly found by using the above discriminating method: (1) When the pump is started or running in variable conditions, there will be a larger run-up or radial run-out, rotor movement or beating on the packing has great destructive, will pull bad packing in a short time ; (2) If it is in variable working conditions, the actual lift will be greater than the rated head, high-lift water through the water seal into the water ring seal on the filler, accelerated packing wear, also resulted in leakage Increase, a little longer time to wear a filler to a certain extent gradually become a powder.
Solution measures channeling shaft management method using thrust bearing replacement of the original oil seal ring, and the thrust bearing close to the bearing, with a radial sleeve with the same radial size between the rotor sleeve and the thrust bearing sleeve to achieve the rotor shaft To the limit.
The base of the pump is a sleigh-type platform converted from an old shovel bar, in order to facilitate drag and drop when moving frequently. Four 16-ton hydraulic machines are installed at the four corners of the sled platform, and the pump is used to adjust the lift and the stability of the pump . Pillow under the pillow for padding, water accumulation in the big groove, the pump base can be quickly raised to ensure that when the pumping water pumping is not affected. When the pump base is raised, the pumping pipe connected with the pump body affects the elevation of the pump body, and a hose of φ219 mm in each connection of the two ends of the pump body and the suction pipe is connected by a flange plate. Ensure that the pipeline has sufficient freedom of inclination.