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Water Pump Seal To Prevent Liquid Leakage
May 10, 2017

Water pump sealing method:

1, packing seal: asbestos rope winding.

2, mechanical seal: dynamic ring plus static ring plus "O" ring seal.

3, soft packing seal: with carbon fiber soft clay wrapped around the shaft, pressurized injection.

Note: packing seal is squeezed, easy to wear shaft, but easy to replace; mechanical seal does not hurt the shaft but the replacement of trouble; soft packing seal is not easy to repair the shaft but easy to stop when the pump.

Packing is easy to replace; mechanical seal does not hurt the shaft but the replacement of trouble; soft packing seal is not Pump Seal easy to repair the shaft but when the pump is easy to seepage.

The finite element method was used to establish the two-dimensional model of the single screw pump. The influence of the pressure difference between the stator rubber and the rotor on the contact pressure was analyzed, and the pressure difference and the contact pressure , The pressure in the chamber and the contact pressure and the maximum sealing pressure and the relationship between the amount of interference and the maximum pressure. The results show that the increase of the pressure increases the contact pressure, and the increase of the pressure in the cavity reduces the contact pressure and the maximum sealing pressure decreases. The increase of the interference amount increases the maximum pressure of the screw pump.

In order to make the product has a global theme, but also industrial enterprises have been concerned about and increasingly Pump Seal attention to the subject. In many industrial production are inseparable from the water, there are many aquatic products which accounted for a large proportion of centrifugal pumps.

The working principle of the pump seal

First, what is mechanical seal Mechanical seal is a liquid rotating machine shaft seal device, it is by the two vertical and relative movement of the sealed end of the seal, so also called the end seal. In the national standard for mechanical seals, is defined by the fact that at least one pair of end faces perpendicular to the axis of rotation remain adhered and relatively slid under the action of the liquid pressure and the resilient (or magnetic) of the compensating mechanism and the Pump Seal auxiliary seal Means of preventing liquid leakage.

Second, the structure of the pump seal

Mainly composed of four parts:

1, the first part is composed of moving ring and static ring composed of sealed end face, sometimes called friction pair.

2, the second part of the original components from the original as the main components of the buffer compensation mechanism, its role is to close the sealing surface close.

3, the third part is the auxiliary ring, which has a ring and static ring ring.

4, the fourth part is to move the ring with the rotation of the transmission mechanism.

The working principle of the pump seal

First, what is mechanical seal Mechanical seal is a liquid rotating machine shaft seal device, it is by the two vertical and relative movement of the sealed end of the seal, so also called the end seal. In the national standard for mechanical seals, is defined by the fact that at least one pair of end faces perpendicular to the axis of rotation remain adhered and relatively slid under the action of the liquid pressure and the resilient (or magnetic) of the compensating mechanism and the auxiliary seal Means of preventing liquid leakage.

Second, the mechanical seal structure consists of four parts:

1, the first part is composed of moving ring and static ring composed of sealed end face, sometimes called friction pair.

2, the second part of the original components from the original as the main components of the buffer compensation mechanism, its role is to close the sealing surface close.

3, the third part is the auxiliary ring, which has a ring and static ring ring.

4, the fourth part is to move the ring with the rotation of the transmission mechanism.

Third, how to seal the mechanical seal? Shaft through the drive block and push the ring, driven by moving ring rotation, static ring fixed, relying on the media pressure and spring force to make the static and dynamic ring between the sealing end of the close fit, to prevent the media leakage. After the friction surface is worn, the spring is actuated to compensate. In order to prevent the media through the dynamic ring and the shaft between the leakage, with a dynamic ring ring; and static ring ring to prevent the media along the static ring and gland between the leakage. Fourth, the mechanical seal of the mechanical seal is mainly composed of moving ring and static ring, the general manufacture of these two rings used in the material