Position requirements for mechanical seals when installing slurry pumps

The mechanical seal is an accessory suitable for a variety of equipment, among which the slurry pump is widely used, but during the use and installation process, in order to better ensure the operation of the pump, its installation location has strict requirements.

The seal for slurry pump refers to the device that prevents fluid leakage by keeping the end face perpendicular to the rotation axis under the action of fluid pressure, spring force and the cooperation of auxiliary seals to keep fit and slide relatively. The structure of commonly used pump seals is composed of static ring (static ring), rotating ring (moving ring), elastic element spring seat, set screw, rotating ring auxiliary sealing ring and stationary ring auxiliary sealing ring. Press the cap on to prevent the stationary ring from rotating. Rotating and stationary rings are also often referred to as compensated or non-compensated rings depending on whether they have axial compensation capabilities.

1. Confirmation of parts

When installing the pump seal on the machine, it should be well compared with the general assembly drawing before installation to confirm whether the parts are ready. At this time, pay attention to whether there are any scratches, defects, etc. If there is any abnormal phenomenon, pay attention to whether there are any scratches on the surface of the shaft or the shaft sleeve, flange and other components that are in contact with the packing, sealing ring (O-ring), etc. If any abnormal phenomenon is found, it must be replaced or repaired before use.

2. During the actual installation, do not bring more than necessary parts to the site. In this way, if there are any remaining parts after installation, there is a missing place during installation; if the parts are insufficient, it means an unnecessary place. The parts are also assembled, which also acts as a self-check during installation.

Only in strict accordance with the precautions when installing mechanical seals for slurry pumps can we ensure the stable operation of the seals for slurry pumps, the extension of service life and the exertion of low leakage performance. Therefore, it is very important to install it correctly on the machine. of.