Self-cleaning filter is an important equipment for wastewater treatment, which can lay a hard foundation for the quality of the project. But how to repair the self-cleaning filter when it fails to operate for a long time? Which aspects are mainly reflected in?
Failure one: water leakage problem
Leakage problems generally occur in the filter drive shaft part (cylinder, flange welding part of the leakage is not within the scope) There are basically two reasons for this problem, as follows:
1, the material or specifications of the drive shaft seal ring does not meet the requirements, so replace the seal ring to meet the requirements.
2, the second is the seal ring after a long period of operation wear and tear, caused by the drive shaft and the filter body between the seal is not tight and water leakage, such as this case to replace the corresponding specifications of the seal ring can solve the problem.
Failure 2: Filter blockage or reduced filtration efficiency
This can be caused by solid particles accumulating on the filter and not being properly removed. Possible causes include improperly set cleaning cycles, malfunctioning cleaning mechanisms, or low cleaning fluid pressure.
Failure 3: Automatic drain valve failure
Specifically manifested as automatic cleaning when the sewage valve does not move or sewage valve can not open has not been closed.
1, this problem is generally the choice of domestic solenoid valve, this solenoid valve for the pilot-operated, first by the solenoid to open the pilot hole, and then rely on the pressure of the water in the system to open the diaphragm to open the valve.
2, due to sewage water contains many impurities, it is very easy to block the pilot hole, resulting in the solenoid valve does not act or open after closing is not strict.
3, the choice of electric ball valves or hydraulic solenoid valve as a drain valve, it completely solves the problem of ordinary solenoid valve as a self-cleaning filter automatic drain valve is prone to malfunction.
Failure four: filter noise
This may be caused by the fluid flow rate is too fast, pump or valve failure, or other mechanical problems. It is necessary to check the operating status of the entire system to determine the source of the problem.
Failure five: self-cleaning control system failure
Frequent start-up causes an increase in the amount of cleaning water, shortening the life of the filter.
1, this problem is generally caused by the filter parameters are not set in accordance with the working conditions.
2, which is mainly set by the differential pressure controller cleaning differential pressure value and cleaning time interval problem, filter cleaning system starts frequently can be set by a larger differential pressure value and time interval to solve the control system problem.
Self-cleaning filter is not a problem that does not have to be maintained, in fact, the self-cleaning filter requires regular maintenance and overhaul, the purpose of which is to ensure that equipment failures can be found and dealt with in a timely manner, so that the self-cleaning filter can be a long-term stable operation.
Related Products
Self-Cleaning Water Filter
Bag Filter
Multi-Medium Filter
