The installation of mechanical seals - 2016
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Seven seals is refers to the mechanical equipment in normal work, in order to avoid mechanical seal into the body's internal and external dust, impurities of medium leakage to the outside world and to avoid the body block, sealing effect of the components.
Seal type of many varieties, used as a static sealing seal mostly non-metallic, half made of metal or metal gasket or gasket, such as rubber washer, clip flat wire mesh asbestos gaskets, copper flat washer, etc.
Used as a touch type of dynamic seal seals, commonly used have felt ring, gland packing, type O sealing ring, and V (
Y, u)
Sealing ring, etc.
Non touch dynamic seal often choose annular gap sealing, bending (
Labyrinth)
Seal, etc.
Before install the seals, first of all, should be familiar with sealing parts in the orientation, construction installation drawing mechanical seal type, installation order, then check to install the seal the appearance of the machining quality and the precision of mutual cooperation, and view the presence of cracks, scratches, deformation, breakage, etc, create conditions for the smooth installation.
When install the seals, should choose the place of clean, easy to operation, choose special and essential things in order to install.
Installed in it is strictly prohibited to hard blows or forcibly installation, to prevent the sealing performance of seal damage.
Static sealing seal should be uniform pressure in sealed two plane;
Dynamic seal of the seals shall be installed vertically to be sealed on the axis of rotation.
With stuffing box sealing device, when pressed packing gland of the clamping force should be evenly distributed along the circle weeks, and bolt should not be screwed too tight, try to work further adjustment, to ensure that the seal no leakage, no fever.
When installing 0 type sealing ring, shall not distort, damage the sealing ring;
When installing V, Y, U sealing ring, sealing ring of the lips to the direction of the pressure of sealing medium, and pay attention to not to damage the lips.
When installing annular gap seal and seal bending, bending annular space or gap should be uniform, gap should be filled with grease.
On the dynamic seal of the cooperation, according to the using performance, can be coated with appropriate lubricant.
In the equipment test work should pay attention to dynamic seal seal presence of abnormal noise or smoke.
