Mechanical seal for kettle Installation instructions for

Before designing the mechanical seal for kettle, all conditions shall be designed, and the PV value required shall be known, as well as the shape and volume of the equipment used. When considering these conditions, it is still necessary to know the size of friction power consumption, which will also affect its service life and the consideration of materials to be used; Structure and strength; Reliability and stability; Materials and prices.

The installation of mechanical seal for kettle is very important for users, because it is easy to enter some dust if the seal is not installed properly, and the dust is easy to cause the failure of equipment after a long time of accumulation. Therefore, before installation, there are some precautions that should not only be paid attention to, but also be taken as standard constraints in actual operation.

1. In order to facilitate the disassembly and sealing, a short coupling is generally installed between the mixing shaft and the transmission shaft.

2. The kettle mechanical seal can be installed in advance in the seal manufacturer or maintenance workshop, and can be installed on the site. The product shall be installed according to the instructions.

Mechanical seal for kettle

3. The mixing kettle is seldom operated with full kettle, so the sealing medium of mechanical seal for kettle is gas, which is usually in a dry conflict state, and the end face wear is large. Because of the strong gas permeability, the request for sealing information is high. In order to smooth and cool the sealing face, hydrodynamic double face seal is usually selected as the kettle seal, and smooth oil or smooth outstanding liquid is introduced between the two sealing faces for smoothing and cooling. Single face seal is only used for occasions with low or unimportant pressure contrast.

4. The mixing shaft is relatively long and there is a mixing paddle at the lower end, so the kettle mechanical seal has a large swing and oscillation contrast, so that the dynamic ring and the static ring can not have a good fit. Usually, the mixing shaft needs to be equipped with a bottom bearing or a central bearing. In order to reduce the influence of shaft swing and oscillation on the seal, add a bearing near the seal, and first consider that the dynamic ring and static ring have better floating performance.