Vertical five-plunger high-pressure methylamine pump demolition, in the preparation of the case, should be the following steps and requirements. ①turn the crosshead down to the bottom dead center, and then unscrew the side column nuts, screw the pump nut to use two wrenches, and staggered 180 ° Symmetric effort to prevent the side column bending. ② Pull the upper crosshead and the column upright and the plunger upwards and away from the stuffing box. ③ Use the plunger bracket to lift off the plunger. ④ Unscrew the connecting bolt between the upper crosshead and the plunger, remove the side column, the upper crosshead, the plunger head, and the plunger ring. Figure 3-25 shows the plunger pump head assembly. ⑤ open the connecting rod connecting rod big head, the connecting rod release from the crank, and then one by one from the crankcase hoist out the crosshead and connecting rod. ⑥ uninstall the crosshead pin on the ring and positioning pin, the crosshead pin out from the crosshead, connecting rod can be separated from the crosshead. ⑦ Loosen the coupling connected with the gear box, unscrew the fixing nut of each crankshaft bearing, take out the main bearing cap and remove the half coupling. ⑧ Remove the crankcase cover at both ends of the crankcase and lift the crankcase axially out of the crankcase. ⑨ remove the cylinder cover, with the end of the threaded rod, hooks and other special tools, the valve will be discharged and suction valves valve sleeve, spring seat, spring, valve plate and so on. ⑩ Remove the stuffing box from the cylinder body, remove the stuffing gland, stuffing box gland and main packing gland, and take out graphite ring, packing ring, liquid sealing ring and guide ring. ⑥ cylinder block removed from the crankcase.
Kitchen Accessories,Kitchen Cabinet Accessories,Kitchen Board,Kitchen Supplies
JIANGMEN MEIAO KITCHEN AND BATH CO.,LTD , https://www.meiaogroups.com