Wujin heat transfer oil pump packing Seal maintenance method: 1, clean the stuffing box, and check the shaft surface for scratches, burrs and so on. The stuffing box should be clean and the shaft surface should be smooth. 2. Check the shaft runout. The unbalance of the rotor jump should be within the allowable range to avoid excessive vibration and unfavorable to the packing. Wujin heat transfer oil pump packing seal repair method:
1. Clean the stuffing box and check the surface of the shaft for scratches, burrs, etc. The stuffing box should be clean and the shaft surface should be smooth.
2. Check the shaft runout. The unbalance of the rotor jump should be within the allowable range to avoid excessive vibration and unfavorable to the packing.
3. Apply a sealant or a lubricant compatible with the medium in the stuffing box and the shaft surface.
4. For the packing of the roll package, first take the wooden rod with the same size as the journal of the journal, wrap the packing around it, and then cut it with a knife. The knife edge is preferably 45° inclined.
5, the filler should be filled one by one, not a few at a time. The method is to take a filler, apply a lubricant, and hold one end of the filler interface with both hands, pull it in the axial direction to make it spiral, and then enter the journal from the slit casing. Do not pull in the radial direction to avoid the interface is not aligned.
6. Take a metal bushing of the same size as the stuffing box or a lower shaft hardness, push the packing into the deep part of the box, and apply a certain pressure to the bushing with the gland to pre-compress the packing. The amount of pre-compression is 5% to 10% to 20%. Rotate the shaft one more turn and remove the sleeve.
7. Fill the second and third roots in the same way. Note that when the number of fillers is 4~8, the interfaces should be staggered by 90° when filling; the two fillers are staggered by 180°; 3-6 are staggered by 120° to prevent leakage through the interface.
8. After the filling of one filler is completed, the gland should be pressed tightly, but the pressing force should not be too large. At the same time, by rotating the shaft by hand, Bo Taibang makes the assembly pressing force tend to parabolic distribution. Then relax the gland slightly.
9. Carry out the running test. If it can't be sealed, press some packing again; if the heat is too big, relax it. In this way, only when the droplet leakage and heat generation are small (the temperature of the filler part can only be 30 to 40 ° C higher than the ambient temperature), it can be put into use.
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