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Two. Pump installation height, should ensure that the pump does not exceed the maximum allowable suction height, the pipe should be installed pipe rack, the pump is not allowed to withstand the pipeline load.
Third, it is recommended to suction and discharge lines were installed on the vacuum gauge and pressure gauge, in order to monitor the working status of the pump.
Fourth, the pump is not started before the preparation:
1. Before the pump is not activated, pump parts should be carefully inspected.
A. Check the pump nut and the base of the bolts are tightened.
B. Check the pump drive gear and passive gear rotation is flexible.
2. Open the suction and discharge valves.
3. Check the motor power is correct. Whether the direction of rotation of the pump is the same as the direction of the arrow, that is, facing the bearing, clockwise rotation.
Five. KCB-18.3 pump maintenance work:
1. Note that the readings of the pump pressure gauge and vacuum gauge should comply with the technical specifications.
2. Pay attention to the working status of the shaft seal. If the oil leaks, the pump of the packing seal structure should be evenly tightened with the compaction cover, but it should not be too tight to avoid the heat and rapid wear of the sealing ring. The oil seal should be replaced in time.
3 regularly check the various parts of the pump fever.
4. When the pump is found to have abnormal noise or fever is too high and other failures, should immediately stop the pump work, troubleshooting.
5. Always keep the pump working place clean.
Six. Pump stop:
1. Turn off the motor power.
2. Close the suction and discharge valves .
Seven. Failure and troubleshooting methods:
1. Can not discharge liquid or discharge less?
Reason: 1, the pump body is not filled with oil. 2, high oil vacuum over high. 3, suction pipe leakage. 4, the direction of rotation is wrong. 5, suction take over the total area of ​​the oil hole is too small. 6, blockage in the suction pipe or other faults. 7, low speed pump. 8, discharge pipe resistance is too large. 9, oil pipe not all immersed in liquid. 10, because of the liquid temperature is low and the viscosity increases. 11, safety valve open. 12, poor contact cone valve cone.
Remedy: 1, at the vacuum pressure at the oil filling. 2, improve the suction surface. 3, check the connection and fastening. 4, the motor re-wiring. 5, increase the area of ​​metal mesh. 6, check and troubleshooting. 7, check and correct with a tachometer. 8, open the valve to reduce discharge pressure. 9, check and correct office. 10, preheat the liquid or reduce the discharge pressure. 11, adjust the safety spring pressure. 12, re-use grinding paste grinding.
2. The motor power is too large?
Reason: 1, the viscosity of inhaled liquid is too large. 2, discharge pressure is too high. 3, discharge pipe resistance is too large. 4, rotating part of the operation is not blocked and friction caused by high fever. 5, the pump inhalation liquid is not clean, sand or metal sand caught the tooth flanks or both sides of the wear and tear injury.
Remedy: 1, preheat or reduce the discharge pressure. 2, reduce discharge pressure. 3, check and troubleshoot. 4, open to check and correct it. 5, should immediately dismantle and clean and repair defects.
3. Oil pump liquid leakage?
Reasons: 1, packing gland is not compressed. 2, the seal has been worn for a long time. 3, the pressure ring is not positive bias. 4, the gasket gasket in all parts of the oil spill.
Remedy: 1, tighten the nut. 2, replace the new ring. 3, open, the average tighten the nut. 4, replace the new one.
4. Pump abnormal noise?
Reason: 1, the liquid can not be absorbed. 2, the Ministry of oil pump binding and improper. 3, the driving gear shaft or passive gear shaft is not the same heart. 4, the gear tooth surface has worn or bitten hair, resulting in reduced surface finish. 5, the rotation part of the interference. 6, the shaft sleeve has worn.
Remedy: 1, according to the first category to change the barrier inspection. 2, should be overhaul. 3, should be overhaul. 4, should be dismantled. 5, should be dismantled. 6, replace the new one.
One. KCB-18.3 gear pump lubrication is discharged by the liquid itself, ( motor grease replacement, depending on the situation may be). Therefore, the discharged liquid must be cleaned. If dust or metal dust is entrained, the service life of the pump will be seriously affected. Please pay attention to this when using it. If necessary, inhale the pipe end of the metal filter oil network to prevent the inhalation of impurities. Oil filter to 60-100 mesh / hour is appropriate, the effective filtration area of ​​the oil filter should be greater than twice the cross-sectional area of ​​the suction pipe.
April 13, 2024