Gear pump in use, often occur insufficient oil, or no oil pressure phenomenon. We do the following analysis of this failure to facilitate the troubleshooting of gear pump and maintenance. Keyword search: gear pump information 　 Gear pump products
L/LL/KL Finned Tube Application
Application: Mainly used for air coolers in petrochemical, electric power, papermaking, tobacco, building heating and other industries, air heaters and air heaters in spray drying systems such as vegetable protein and starch in the food industry. Blast furnace and converter systems, power generation: condensed exhaust gas from steam turbines, condensed water contact circulation cooling condensation, fossil and nuclear power plants, air conditioners (Freon, ammonia, propane), waste incineration equipment, compressor coolers, etc.
We customize finned tubes according to the individual needs of our customers. For more L/LL/KL finned tube details, please contact us!
L/LL/KL Finned tube is a tube with small finned fins around its outer surface. L/LL/KL fin tube fins act as a filter and a mechanism for transferring heat from the material inside the tube to or from the outer space. Finned tubes are used in applications where heat is transferred from a hot fluid to a cooler fluid through the wall of the tube. The rate at which this heat transfer occurs depends on three factors:
The difference in temperature between the two fluids.
The coefficient of heat transfer between each fluid and the wall.
Surface area of fluid exposure
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Specific phenomenon:
(1) gear pump working device to enhance slowly, shaking or lifting can not be improved;
(2) bubbles in the fuel tank or tubing;
(3) hydraulic system when lifting to send "jack, jack" sound;
(4) The working device can be upgraded when the tractor is just started. After the oil temperature rises for a period of time, the speed increases slowly or can not be improved.
(5) gear pump can improve light load, heavy load can not be improved.
cause of issue:
(1) hydraulic tank oil is too low;
(2) did not use hydraulic oil by season;
(3) into the pipeline was a serious blockage of dirt;
(4) gear pump gear oil seal damage, the air into the hydraulic system;
(5) gear oil pump inlet and outlet joints or bent joints "O" ring damage, bending joints or bolts into the nut is not tight, the air into the hydraulic system;
(6) gear pump leakage, sealing ring aging;
(7) gear pump end or the main, driven gear shaft end wear or scratches, the end surface of the two bushings unevenness;
(8) gear pump internal parts assembly error caused by internal leakage;
(9) "left-handed" installed "right-handed" pump, causing damage to the oil seal;
(10) Gear pump oil is too dirty.
