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T e l：+86-0531-85667509
F a x：86-0531-85667508
E-mai：warwickpump@gmail.com
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Scheme and characteristics of mechanical seal flushing
release time：2016/10/29 clicks：
Scheme and characteristics of mechanical seal flushing
The purpose of washing is to prevent the accumulation of impurities, to prevent the formation of air bags, to maintain and improve lubrication, etc., when the flushing fluid temperature is low, both cooling effect:
First, the internal washing
1 flush
(1) features: the use of the work of the host of the sealing medium, by the outlet of the pump through the pipeline into the sealing cavity.
(2) application: for cleaning fluid, P1 is slightly greater than P, when the temperature is high or impurities, can be set on the pipeline cooler, filter, etc.
2 back flush
(1) features: the host of the sealed medium, by end of the outlet of the pump into the sealed cavity, after washing by pipeline flows back to the inlet of the pump.
(2) application: used for cleaning fluid, and P into the 3 full wash
(1) features: the host of the sealed medium, from the outlet end of the pump through a pipeline into the sealed cavity, rinse and then administered by the road flows back to the inlet of the pump.
(2) application: the cooling effect is better than the first two, for cleaning fluid, and P1 and P and P out of phase close.
Two, external washing
Features: the introduction of the external system and the sealed medium compatible with the clean fluid to seal the chamber for washing.
Application: the pressure of external washing lotion should be larger than 0.05--0.1MPa, which can be applied to the occasions of high temperature or solid particles.
The flow of the washing liquid should be guaranteed to take away heat, but also need to meet the needs of flushing, will not produce the seal of the erosion. To this end, we need to control the pressure of the seal chamber and the flow rate of washing, generally clean flush fluid
The flow rate should be less than 5m/s; containing particles of slurry fluid must be less than 3m/s, to achieve the value of the flow rate, the difference between the pressure of flushing fluid and sealing chamber should be <0.5MPa, generally take 0.05--0.1MPa, the
Double face mechanical seal desirable 0.1--0.2MPa.
Washing liquid inlet and outlet of the sealed cavity of the position of the orifice should be set in a sealed near the end, and should be in my words, sorry to everybody, dynamic ring side, in order to prevent the graphite ring is erosion or due to cold
But due to temperature and deformation, and impurities on the bulk and coking can be used cut to introduce or multi-point flushing. If necessary, washing liquid can be hot water or steam.
The purpose of washing is to prevent the accumulation of impurities, to prevent the formation of air bags, to maintain and improve lubrication, etc., when the flushing fluid temperature is low, both cooling effect:
First, the internal washing
1 flush
(1) features: the use of the work of the host of the sealing medium, by the outlet of the pump through the pipeline into the sealing cavity.
(2) application: for cleaning fluid, P1 is slightly greater than P, when the temperature is high or impurities, can be set on the pipeline cooler, filter, etc.
2 back flush
(1) features: the host of the sealed medium, by end of the outlet of the pump into the sealed cavity, after washing by pipeline flows back to the inlet of the pump.
(2) application: used for cleaning fluid, and P into the 3 full wash
(1) features: the host of the sealed medium, from the outlet end of the pump through a pipeline into the sealed cavity, rinse and then administered by the road flows back to the inlet of the pump.
(2) application: the cooling effect is better than the first two, for cleaning fluid, and P1 and P and P out of phase close.
Two, external washing
Features: the introduction of the external system and the sealed medium compatible with the clean fluid to seal the chamber for washing.
Application: the pressure of external washing lotion should be larger than 0.05--0.1MPa, which can be applied to the occasions of high temperature or solid particles.
The flow of the washing liquid should be guaranteed to take away heat, but also need to meet the needs of flushing, will not produce the seal of the erosion. To this end, we need to control the pressure of the seal chamber and the flow rate of washing, generally clean flush fluid
The flow rate should be less than 5m/s; containing particles of slurry fluid must be less than 3m/s, to achieve the value of the flow rate, the difference between the pressure of flushing fluid and sealing chamber should be <0.5MPa, generally take 0.05--0.1MPa, the
Double face mechanical seal desirable 0.1--0.2MPa.
Washing liquid inlet and outlet of the sealed cavity of the position of the orifice should be set in a sealed near the end, and should be in my words, sorry to everybody, dynamic ring side, in order to prevent the graphite ring is erosion or due to cold
But due to temperature and deformation, and impurities on the bulk and coking can be used cut to introduce or multi-point flushing. If necessary, washing liquid can be hot water or steam.
