We equipped with advance automatic screen printing machine, inkjet
screen making machine, autowashing & heatsetting machine which allow
us to make the Flag size up to 2*6 meters with 7 colors. Our factory
occupy the area of 3000 square meters, employ about 200 works,provide
the production daily capacity for 12000 ~15000 square meters. To protect
the environment,we also build the water recycling system according to
the standard of national environment protection.
With the reputation of products quality and creditability since
settled, we have made the project of supplying flags for: the 10th
national Games of china, the world table-tennis Championships, 2004
Athens Olympic games, 2008 Euro-Championships, 2008 Beijing Olympic
Games and Vancouver 2010 White Olympic Games.
As a leading manufactory certificated by ISO9001 in china,we are known
as the best quality, the reasonable price, and the fastest delivery. Now
our products already exported to all around world ,such as:Germany ,
Sweden , Switzerland, Belgium, Iceland ,Canada, Australia
,USA,UK,UAE,HongKong an Macao.
We will always assure of you to provide the best quality and
service. Welcome to contact us,for any question, in any time! little pumpkin banner,pumpkin patch banner,pumpkin pie banner,welcome little pumpkin banner FlagKing Flags Manufacturing Co.,Limited , https://www.dgcnflagking.com
Common causes of motor vibration and elimination measures:
1, partial bearing wear: the unit is not the heart or bearing wear. Elimination measures: re-school crew concentricity, adjust or replace the bearings.
2, fixed rotor friction: uneven air gap or bearing wear. Elimination measures: readjust the air gap, adjust or replace the bearing.
3, the rotor can not stop at any position or power imbalance. Elimination measures: re-school rotor static balance and dynamic balance.
4, axial loose: loose screws or poor installation. Remedy: Tighten the screws and check the mounting quality.
5, based on the vibration: the basis of poor stiffness or bottom screw loose. Remedy: Reinforce the foundation or tighten the bottom corner screw.
6, three-phase current instability: torque decreases, rotor cage or end ring failure. Remedy: Check and repair rotor cages or end rings.
Common causes of pump vibration and elimination measures 1, manual turning difficulties: shaft bending, bearing wear, the unit is not the heart, impeller touch the pump shell. Elimination measures: straightening pump shaft, adjust or replace the bearings, re-unit concentricity, re-adjust the gap.
2, the pump shaft swing too large: bearings and journal wear or gap is too large. Elimination measures: Repair journal, adjust or replace bearing.
3, hydraulic imbalance: impeller imbalance, centrifugal block individual leaf blockage or damage. Elimination measures: re-school impeller static balance and dynamic balance, eliminate clogging, repair or replacement of the impeller.
4, axial pump shaft power is too large: the water level is too low into the sink, impeller inundation depth is not enough debris around the impeller, pump cavitation damage to varying degrees, the impeller defect. Elimination measures: Raise the water level into the pool, reduce the elevation of the pump to remove debris, and set the fence eaves, repair or replacement of the impeller.
5, based on the vibration: the basis of poor stiffness or bottom screw loose or resonance. Elimination measures: Reinforcing the foundation, tighten the ground screw.
6, centrifugal pump unit efficiency dropped sharply or axial pump unit efficiency decreased slightly, accompanied by cavitation noise. Elimination measures: Change the pump speed, avoid the resonance area, identify the cause of cavitation occurs, take measures to eliminate cavitation.
Other causes of unit vibration and elimination measures:
1, trash rack plug, reduce the water level into the pool. Elimination measures: fence decontamination, add column fence decontamination device.
2, the front pool and the influent pool design is not reasonable, the influent waterway and the pump does not support the deterioration of water conditions. Elimination measures: bar decontamination clean, add a bar ram decontamination device design and reasonable into the former pool, into the pool and inflow channel design.
3, the formation of siphon time is too long, so that the unit for a long time in non-design conditions. Elimination measures: Add vacuum device, reasonable design and improvement of siphon water outlet.
4, influent pipeline fixed or cause resonance. Elimination measures: Add pipe piers and piers, pipe reinforcement support, change the operating parameters, change the operating parameters to avoid the resonance zone.
5, beat the door repeatedly hit the door or close the impact force is too large. Elimination measures: Flow channel (or pipe) outlet before the vent, a reasonable design of the door to take control measures to reduce the impact when the shutter door closed.
6, the rapid changes in the pressure inside the water pipe and water hammer effect. Elimination measures: Slow closing valve and surge tank and other anti-water hammer measures.
7, the unit start and stop the order is not reasonable, resulting in deteriorating water pump conditions. Elimination measures: optimize the boot and shutdown sequence.
Low-intensity mechanical vibrations are unavoidable in rotating equipment and flow media. Therefore, during the manufacture and installation of the unit, the interference caused by vibration should be avoided as far as possible in the design, operation and management of the unit so as to minimize the vibration hazard. When the pump room or unit vibration occurs, should be based on the specific circumstances, one by one to analyze the possible causes of vibration, identify the crux of the problem, to take effective technical measures to eliminate. Some measures are relatively simple, some measures are quite complicated. If you need a lot of money, should deal with several programs for technical and economic comparison, combined with unit technological transformation. The following gives the motor, pump and pump room vibration common causes and elimination measures.
February 21, 2023