Forum Posts

yibocommunal
Mar 07, 2022
In General Discussions
The structural forms of different centrifugal pumps are also different, so the disassembly methods are also different. The centrifugal pump manufacturer will show you Removal of pump cover the manufacturer of centrifugal pump suggests to remove the connecting nut between the pump cover and the pump body first, and then knock the pump cover with a hammer pad and a copper rod to remove it. If there is an ejector bolt, it can be pushed down with the ejector bolt. For the disassembly of the impeller, unscrew the impeller nut and use a wooden hammer or plumb hammer to gently tap around the impeller to remove it. If the impeller is rusted on the shaft, it can be soaked with washing oil or gasoline before disassembly. For the disassembly of the pump body, first remove the connecting nut between the pump body and the bracket, and then remove the pump body. Then remove the packing gland and take out the packing in the stuffing box. For the disassembly of the pump shaft, first remove the pressure bearing covers of the front and rear bearings on the bracket bearing body, and then knock the copper rod from the front direction of the shaft (i.e. towards the coupling direction) to remove the shaft. During the disassembly process, pay attention not to damage the shaft, and the disassembled parts shall be kept in a centralized order. Remove the connecting bolts between the front and rear bearing bodies before removing the bearing body, and then pull out the bearing bush together with the bearing seat along the axial direction Remove the packing gland, unscrew the connecting nut between the gland and the pump body, pull out the gland along the axial direction and take out the packing. Removal of the tail cover: unscrew the connecting nut between the tail cover and the rear section, and then remove the tail cover. Then remove the balance plate and balance plate. Disassembly of the threaded rod unscrew the nuts at both ends of the threaded rod to pull it out. For the disassembly of the rear section, tap the rear section with a hammer to loosen it and then remove it. The impeller can be removed by tapping around the impeller with a wooden hammer or plumb. If the impeller has been rusted on the shaft, it can be soaked with kerosene before dismantling. For the disassembly of the middle section, gently tap it around the middle section with a hammer to remove it. If it cannot be removed, it can be removed by prying along the two feet of the middle section with a crowbar. After the middle section is removed, the small mouth ring can be removed from it, and the retaining sleeve and guide wing can be removed at the same time. Follow this step by step until the front section (suction section). Roots pumps of overflow valves
0
0
1
yibocommunal
Dec 10, 2021
In General Discussions
The function of vacuum pump is to absorb the air in the production environment, improve the vacuum degree of the environment, and reduce the air pressure of the environment. The back suction phenomenon of vacuum pump mainly occurs when the pump fails or operates improperly. Once the reverse suction occurs, the production should be stopped immediately, because continued production will not only cause greater damage to the pump, but also pollute the production environment and cause serious production losses. Why is backsuction related to vacuum pump buffer bottle? Sometimes reverse suction occurs because the liquid in the production environment directly enters the pump body without intermediate buffer, so the liquid will erode the pump body and cause corrosion of internal components of water. When the liquid in the vacuum pump buffer bottle exceeds the marking, it shall be handled as soon as possible, and backsuction may occur if it overflows. Some vacuum pumps do not even have this part of the design, using a small capacity tube to replace the buffer bottle. This method can be adopted if the content of ambient water or other liquids vacuumized is not too much. Back suction does not necessarily cause serious problems. We need to further observe and see where the back suction liquid is. If it does not enter the pipeline or filtrate bottle, there will be no big problem. When the vacuum pump is started here, it can return to the original position under the action of pressure. If it exceeds these positions, it may enter other positions of the pump when the pump is started again, affecting the operation of the pump. The function of filtrate is to absorb water vapor or other components in the air. When the pump sucks back and liquid enters the filtrate, it is necessary to replace the new filtrate, because its absorption capacity may be affected, affecting the filtration function of absorbing air later. Some vacuum pumps have high power and can pump high vacuum. When they are not operated properly, serious back suction will occur. Some vacuum pumps can cut off power in time when reverse suction occurs, so as to prevent leakage or short circuit from burning the motor. Some pumps do not have this function, so we should pay special attention when using them. Generally, adding a buffer bottle can reduce the occurrence of backsuction, and even if backsuction occurs, it can be made up in time. Therefore, it seems that the vacuum pump buffer bottle is of great use. You should know that once the vacuum pump is damaged, the cost of maintenance and replacement will not be too low. If adding a small buffer bottle can prevent this part of expenditure, it is a very meaningful operation for producers. Vacuum Pump Heat Treatment Guide,Heat Treatment Equipment Liquid Ring Vacuum Pump
0
0
1
y

yibocommunal

More actions