Multi-faceted hollow spherical packing is mostly used in water treatment and CO2 removal equipment in power plants, and is widely used in environmental protection equipment such as chlorine removal, oxygen removal, and carbon dioxide removal. So how to clean and fill the multi-faceted hollow ball packing? The multi-faceted hollow ball packing shall clean the packing cavity according to the following steps to check whether the shaft surface has scratches, burrs, etc., to ensure that the roughness of the shaft meets the requirements of the drawing. Check the shaft with a dial indicator For the radial runout of the sealing part, the tolerance should be within the range of 0.03mm-0.08mm.
When filling the multi-faceted hollow ball packing, it is better to take a wooden rod with the same length as the shaft, and then cut the braided PTFE on the wooden rod, and then cut it with a knife to make the incision into a bevel. The two wooden shaft sleeves of the same length as the packing cavity are fitted on the shaft to push the braided packing into the deep part of the cavity, and a gland is used to apply a certain pressure to the wooden shaft sleeve to pre-concentrate it. Pay attention to keeping the braided packing flat at the bottom of the cavity. When injecting the mixed mortar-like filling, it must be pressed with a wooden bushing while filling, and then pressed on the outside of the packing cavity with braided PTFE, and the gland is evenly tightened, and the main shaft is rotated by hand to make the filled multi-faceted hollow ball The packing compressive force tends to be distributed in a parabola, and then the gland is slightly loosened, and the packing is completed. Carry out operation test. When the operation is just started, the disclosure is mainly intermittent dripping. When the disclosure increases, the gland bolts should be adjusted appropriately. If the heat is too great, loosen the bolt. After the operation is normal, the disclosure basically stops. After 60 hours of trial operation, the multi-faceted hollow ball packing sealed cavity was opened to observe, the shape of the braided PTFE end ring remained intact, the mixed soft packing did not appear to fall, and there was no sign of wear on the shaft. Because the packing gland can maintain long-term non-drip, take care of the environment. The protection and maintenance are convenient. When the amount of disclosure is large, the multi-faceted hollow ball packing can be filled without stopping work, which delays the continuous working time of the pump and saves labor and repair costs.