First, the gear pump , gear pump mechanical seal leakage causes of the malfunction:
a Precipitation of solid material leakage, medium solidification, bonding.
b corrosion, galvanic corrosion c high speed, high pressure d vibration is too large, cavitation, surge, bearing is not normal e dry friction, negative pressure, idle seal cavitation, suction, taking the time.
f thermal shock, rapid cooling, rapid heat g excessive temperature h excessive pressure test, high pressure caused by the phenomenon:
Improper leakage improvement measures:
On the medium containing particles, the installation of filtration devices should not be used as their own medium flushing fluid should be taken outside the flushing measures Check the pump and seal performance, improve the use of methods to enhance the flushing, quenching, to improve the sealed operating environment Second, the gear pump, gear pump Mechanical seal leakage causes of the malfunction:
a Precipitation of solid material leakage, medium solidification, bonding.
b corrosion, galvanic corrosion c pressure fluctuation cavitation, surge d thermal shock, rapid cooling, emergency e temperature difference is too large f test over pressure, high pressure caused by the phenomenon:
Leakage improvement measures:
On the medium containing particles, the installation of filter devices should not be used as their own medium flushing fluid should be taken outside the washing measures to check the pump and seal performance, improve the use of methods to enhance the flushing, quenching and improve the sealing operation environment Third, the gear pump, gear pump Mechanical seal leakage causes of the malfunction:
a Precipitation of solid material leakage, medium solidification, bonding.
b medium solidification, c bonding speed is too high, high pressure d vibration is too large, cavitation, surge, bearing abnormal e dry friction, negative pressure, idle seal cavitation, inspiratory, taking the time.
The resulting phenomenon:
Power up improvement measures:
On the medium containing particles, the installation of filter devices should not be used as their own medium flushing fluid should be taken outside the washing measures Check the pump and seal the use of performance, improve the use of methods to enhance the flushing, quenching and improve the sealing operation environment Fourth, gear pumps, gear pumps Mechanical seal leakage causes of the malfunction:
a material mixed with or precipitation of solid material, medium solidification, bonding.
b liquid temperature exceeds the lower limit (subcooling)
The resulting phenomenon:
Can not operate improvement measures:
Steam insulation, to strengthen the flushing, back cold measures to change the form of seal structure Five, gear pump, gear pump mechanical seal leakage causes of the malfunction:
a precipitation of solid materials, medium solidification, bonding.
b medium temperature is too high or too low c corrosion, galvanic corrosion d flushing, cooling blockage or decompression plumbing system e high speed, high pressure f excessive vibration, cavitation, surge, bearing abnormal g dry friction , Negative pressure, idling seal cavitation, inspiration, taking the time.
h sealed chamber is not due to exhaust phenomenon:
Institutional damage improvement measures:
On the medium containing particles, the installation of the filter device should not be used as their own medium flushing fluid should be taken outside the washing measures Check the pump and seal the use of performance, improve the use of methods to enhance the flushing, quenching, to improve the sealing operation environment Six, gear pumps, gear pumps Mechanical seal leakage causes of the malfunction:
Corrosion, leakage of liquid coagulation, adhesion deterioration caused by the phenomenon:
Corrosion, electrochemical corrosion improvement measures:
On the medium containing particles, the installation of the filter device should not use its own media as a rinse solution, should be taken outside the washing measures Check the pump and seal the use of performance, improve the use of methods to enhance flushing, quenching, to improve the sealing operation environment Seven, gear pumps, gear pumps Mechanical seal leakage causes of the malfunction:
a Flushing, cooling blockage or blockage of the circulatory system piping b Overpressure of the sealing face too high c High speed, high pressure Symptoms:
Gland overheating improvements:
Reduce the number of springs, or reduce the amount of seal compression Reassembly adjustment to improve the structural change of the system Sealing structure Enhanced cooling and lubrication measures Eight, gear pumps, gear pumps Mechanical seal leakage causes of the malfunction:
a Flushing, cooling blockage or decompression Blocking of the piping system b High speed, high pressure c Vibration too large, cavitation, surge, bearing abnormal d Dry friction, negative pressure, idling Seal cavitation, Take the time.
e sealed chamber is not due to exhaust phenomenon:
Smoke improvement measures:
Reduce the number of springs, or reduce the amount of seal compression Reassembly adjustment to improve the system structure to change Sealing structure Enhanced cooling and lubrication measures Nine, gear pump, gear pump Mechanical seal leakage causes of the malfunction:
a speed is too high, the pressure is too high b vibration, cavitation, surge, bearing abnormal c dry friction, negative pressure, idling seal
a Precipitation of solid material leakage, medium solidification, bonding.
b corrosion, galvanic corrosion c high speed, high pressure d vibration is too large, cavitation, surge, bearing is not normal e dry friction, negative pressure, idle seal cavitation, suction, taking the time.
f thermal shock, rapid cooling, rapid heat g excessive temperature h excessive pressure test, high pressure caused by the phenomenon:
Improper leakage improvement measures:
On the medium containing particles, the installation of filtration devices should not be used as their own medium flushing fluid should be taken outside the flushing measures Check the pump and seal performance, improve the use of methods to enhance the flushing, quenching, to improve the sealed operating environment Second, the gear pump, gear pump Mechanical seal leakage causes of the malfunction:
a Precipitation of solid material leakage, medium solidification, bonding.
b corrosion, galvanic corrosion c pressure fluctuation cavitation, surge d thermal shock, rapid cooling, emergency e temperature difference is too large f test over pressure, high pressure caused by the phenomenon:
Leakage improvement measures:
On the medium containing particles, the installation of filter devices should not be used as their own medium flushing fluid should be taken outside the washing measures to check the pump and seal performance, improve the use of methods to enhance the flushing, quenching and improve the sealing operation environment Third, the gear pump, gear pump Mechanical seal leakage causes of the malfunction:
a Precipitation of solid material leakage, medium solidification, bonding.
b medium solidification, c bonding speed is too high, high pressure d vibration is too large, cavitation, surge, bearing abnormal e dry friction, negative pressure, idle seal cavitation, inspiratory, taking the time.
The resulting phenomenon:
Power up improvement measures:
On the medium containing particles, the installation of filter devices should not be used as their own medium flushing fluid should be taken outside the washing measures Check the pump and seal the use of performance, improve the use of methods to enhance the flushing, quenching and improve the sealing operation environment Fourth, gear pumps, gear pumps Mechanical seal leakage causes of the malfunction:
a material mixed with or precipitation of solid material, medium solidification, bonding.
b liquid temperature exceeds the lower limit (subcooling)
The resulting phenomenon:
Can not operate improvement measures:
Steam insulation, to strengthen the flushing, back cold measures to change the form of seal structure Five, gear pump, gear pump mechanical seal leakage causes of the malfunction:
a precipitation of solid materials, medium solidification, bonding.
b medium temperature is too high or too low c corrosion, galvanic corrosion d flushing, cooling blockage or decompression plumbing system e high speed, high pressure f excessive vibration, cavitation, surge, bearing abnormal g dry friction , Negative pressure, idling seal cavitation, inspiration, taking the time.
h sealed chamber is not due to exhaust phenomenon:
Institutional damage improvement measures:
On the medium containing particles, the installation of the filter device should not be used as their own medium flushing fluid should be taken outside the washing measures Check the pump and seal the use of performance, improve the use of methods to enhance the flushing, quenching, to improve the sealing operation environment Six, gear pumps, gear pumps Mechanical seal leakage causes of the malfunction:
Corrosion, leakage of liquid coagulation, adhesion deterioration caused by the phenomenon:
Corrosion, electrochemical corrosion improvement measures:
On the medium containing particles, the installation of the filter device should not use its own media as a rinse solution, should be taken outside the washing measures Check the pump and seal the use of performance, improve the use of methods to enhance flushing, quenching, to improve the sealing operation environment Seven, gear pumps, gear pumps Mechanical seal leakage causes of the malfunction:
a Flushing, cooling blockage or blockage of the circulatory system piping b Overpressure of the sealing face too high c High speed, high pressure Symptoms:
Gland overheating improvements:
Reduce the number of springs, or reduce the amount of seal compression Reassembly adjustment to improve the structural change of the system Sealing structure Enhanced cooling and lubrication measures Eight, gear pumps, gear pumps Mechanical seal leakage causes of the malfunction:
a Flushing, cooling blockage or decompression Blocking of the piping system b High speed, high pressure c Vibration too large, cavitation, surge, bearing abnormal d Dry friction, negative pressure, idling Seal cavitation, Take the time.
e sealed chamber is not due to exhaust phenomenon:
Smoke improvement measures:
Reduce the number of springs, or reduce the amount of seal compression Reassembly adjustment to improve the system structure to change Sealing structure Enhanced cooling and lubrication measures Nine, gear pump, gear pump Mechanical seal leakage causes of the malfunction:
a speed is too high, the pressure is too high b vibration, cavitation, surge, bearing abnormal c dry friction, negative pressure, idling seal
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