With the continuous development of industrial technology, pumps have a large number of applications in power, chemical, kerosene and other industries. The function of industrial pump is more and more important. Industrial pump has the characteristics of simple structure, low cost and convenient maintenance. Then let the small series of industrial pump selection introduce some sealing problems of industrial pump to you.
1. The surface of the packing is rough, the debate coefficient is large, and there is leakage. In addition, the lubricant that has been immersed for a long time is easy to lose.
2. When the newly repaired equipment starts to run, the shaft seal is in good condition, but before long, the discharge capacity will continue to increase, and the work of adjusting the gland and replacing the packing will be repeated gradually. In less than a cycle, the shaft sleeve has been worn into a vase shape, and in severe cases, the shaft sleeve will be broken, and the packing that cannot be replaced at the back of the water seal ring has rotted, so it cannot play a sealing role.
3. The packing is in direct contact with the shaft and rotates relatively to form the wear of the shaft and the shaft sleeve, so it is necessary to replace the shaft sleeve on time or not.
4. In order to make the debate heat between the packing and the shaft or the shaft sleeve dissipate in time, it is necessary to adhere to a certain amount of venting of packing seal, and it is not easy to control.
5. The debate between the packing and the shaft or the shaft sleeve results in the low effective power of the motor and the consumption of electric energy.