| Customization: | Available |
|---|---|
| Material: | NBR |
| Usage: | Engine |
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| Product Name | Oil Seal |
| Product Number | 1616551700 |
| Design For | Atlas Copco |
| Brand | QINGDAO FUTAI |
| Material | Strict implementation of air compressor parts technical standard |
| MOQ | 1 PC |
| Delivery time | 10-15 days |
| Condition | New |
Good sealing performance with pressurized media
Suitable for dry runs and lubricated applications
Also suitable for soft shafts
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| Shaft Seal: |
Prevent the leakage of high pressure liquid from the pump and prevent air from entering the pump.Although the position of the shaft seal in the pump is not large, but the normal operation of the pump is closely related to the shaft seal.If the shaft seal is selected improperly, not only in the operation of the need for frequent maintenance, leakage of a lot of liquid is conveyed, and may be due to the leakage of flammable, explosive and toxic liquid caused by fire, explosion and poisoning accidents, the consequences are unimaginable.Therefore, the shaft seal structure must be selected reasonably to ensure the safe operation of the pump.
1.Due to the atmospheric pressure with the outside world in cylinder, will inevitably make steam in cylinder or cylinder outside air along the radial clearance between shaft and cylinder leakage or leakage into, thereby causing loss to the working medium, the deteriorating operating environment, and heating shaft neck or make the steam into the bearing chamber, causes the deterioration of oil, leaking into the air and vacuum, thus increasing the extraction load, the unit will reduce the efficiency,To this end, the rotor through the cylinder at both ends are equipped with a seal, the seal is called the shaft end seal for short.High pressure shaft seals are used to prevent the leakage of steam out of the cylinder, and low pressure shaft seals are used to prevent the leakage of air into the cylinder.
2.Steam turbine operation is bound to have a part of the steam leakage from the shaft end to the atmosphere, resulting in the loss of working medium and heat, but also affect the turbine generator working environment, if the improper adjustment of steam leakage is too large, will make the bearing near the shaft seal temperature rise or make the bearing oil water.For this reason, in all kinds of units, set up the shaft seal heater, in order to recover the steam turbine shaft seal leakage
3.Prevent the steam in the cylinder and stem leakage outward, pollution of the turbine room environment and bearing lubricating oil quality.During the normal operation of the unit, high temperature steam flows through the turbine shaft and makes it heated, thus causing overtemperature of the bearing.The vacuum part of the cylinder that prevents air from escaping into the cylinder.Ensure the vacuum effect and vacuum degree of condenser when the unit is started.Recover seal and stem leaks to reduce working medium and energy losses.
4.In the steam turbine brake shutdown and the condenser needs to maintain a vacuum during the whole hot state shutdown process, to prevent air leakage into the steam turbine, accelerate the steam turbine internal cooling, resulting in bending of the shaft.
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