Gland type, skeleton type and mechanical seal as the Roots blower seal 3 kinds of ways, about these 3 kinds of waysRoots BlowerI have made the following detailed introduction for you to understand more clearly.
1. Pressure cover type:
This is a simple structure, more commonly used form of sealing, mostly used for conveying air. There are four gland type seals in connection with the cylinder, and several rings of asbestos oil packing are installed in the packing box of the gland, in order to reduce the axial length, the sealing is considered to be close to the bearing at the time of design. During operation, the bolts around the gland can be tightened regularly to keep the gas from leaking out.
2. Skeletal:
Skeleton seal is generally a skeleton rubber oil seal, each group of oil seals consists of two or three J-shaped skeleton rubber oil seals, two of which are mounted back-to-back on the inside in contact with the conveying medium, the other is mounted on the outside, in the middle of the injection of lubricating grease. The whole sealing parts are installed in a sealing jacket to form a component. The structure of the sealing effect is better, can be used for high speed Roots blower.
3. Mechanical seal:
For Roots fan conveying special media, the shaft end seal structure adopts mechanical seal. Mechanical seal has the advantages of reliable sealing performance, small leakage, long service life, low power loss, and no need for frequent maintenance.