Mechanical seal structure is mainly composed of the four most commonly: by static ring and rotating ring , consisting of a pair of seal face is given priority to with elastic sealing element buffering mechanism for compensating for auxiliary sealing mechanism, make the ring and shaft rotary actuator.
Mechanical seal installation is complex, wrong installation will cause the damage of mechanical seals or seal failure.
Mechanical seal installation essentials:
1. The mechanical seal equipment shaft diameter should be 0.04 mm or less, the axial channeling momentum does not allow more than 0.1 mm;
2. Sealing parts, mechanical equipment in the installation should be kept clean, mechanical seal parts should be clean, mechanical seal the seals should be intact, prevent the impurity and dust into the sealing parts;
3. It is forbidden to touch, in the process of mechanical seal installation, so as not to pay damage and seal failure of mechanical seals friction;
4. When the installation, and mechanical seal contact surface should be coated with a layer of clean machine oil, so as to smooth installation;
5. The installation of mechanical seal static ring gland, tighten bolts must force uniform, ensure static ring end face and the axis of vertical requirements;
6. Mechanical seal installation after push the ring with the hand, can make the ring on the shaft flexible mobile, and have certain elasticity;With the hand plate moving axis, axis should be no weight feeling;
7. Machinery and equipment must be full of medium before operation, to prevent dry friction and make the seal failure;
8. For easy to crystallization, particle medium, medium temperature > 80 ℃, the corresponding washing, filtering and cooling measures should be taken, all kinds of auxiliary device can consult relevant standard mechanical seal.