Reverse osmosis water treatment equipment principle:
Reverse osmosis, also known as reverse osmosis (RO), is a certain pressure to the solution of the solvent through the reverse osmosis membrane separation. Because it is the opposite direction of natural infiltration, so that reverse osmosis. According to the different osmotic pressure of various materials, can be greater than osmotic pressure reverse osmosis method to achieve separation, extraction, purification and enrichment purposes.
Reverse osmosis is a high-tech membrane separation technology, its pore size is very small, mostly ≤ 10 × 10 10 (10A), it can remove the filtrate in the ion range and molecular weight is very small organic matter, such as bacteria, viruses, heat and so on. It has been widely used in seawater or brackish water desalination, electronics, medicine with pure water, drinking distilled water, the production of space water, also used in biological, medical engineering.
Reverse osmosis water treatment equipment process
Process: raw water → multi-media filter → activated carbon filter → cationic resin softener → precision filter → high pressure pump → reverse osmosis system → ozone sterilization system → pure water tank → water system
Reverse osmosis water treatment system
The reverse osmosis system is a set of water treatment systems that are organized around the reverse osmosis membrane. A complete reverse osmosis system consists of a pretreatment section, a reverse osmosis host (membrane filtration section), a post-treatment section and a system cleaning section.
First, the pretreatment is often composed of quartz sand filter, activated carbon filter, precision filter device, the main purpose is to remove the raw water contains the sediment, rust, colloidal substances, suspended solids, pigments, odor, biochemical organic matter, reduce water Residual ammonia and pesticide contamination and other harmful substances. If the content of calcium and magnesium ions in the raw water is high, it is necessary to increase the soft water device. The main purpose is to protect the reverse osmosis membrane from the destruction of large particles and prolong the service life of the reverse membrane.
Second, the reverse osmosis main engine by the booster pump, membrane shell, reverse osmosis membrane, control circuit and other components, is the core of the entire water treatment system, water quality is also the most important factor depends on the part. As long as the membrane model and booster pump model selected properly, reverse osmosis host on the water salt filtration capacity can reach more than 99%, effluent conductivity can guarantee 10us / cm (25 degrees) or less.
Third, the post-processing part of the reverse osmosis host is mainly for the further processing of pure water, if the follow-up process ion exchange or electric deionization (EDI) equipment, you can make industrial ultra-pure water, if it is used Civil direct drinking water, it is often connected after the sterilization device, for example, can be connected to the line of germicidal lamp or ozone generator, so that the water can be directly consumed.
RO system common fault handling
Serial number
malfunction
the reason
Treatment measures
1
The switch is on, but the device does not start
Electrical line failure, such as bad insurance, wire off;
Thermal protection element is not reset after protection;
Raw water is water or purified.
Check the insurance, check the wiring everywhere.
Thermal protection element reset.
Check the waterway to ensure water supply pressure.
Check the water level.
Check the level switch or replace it
2
After the device is started, the primary pump is not open.
Raw water is water or the middle tank is full
2. Low voltage switch is damaged or improperly adjusted
3. Thermal protection component protection is not reset.
4. Electrical line fault: wire off or contactor damage
5. The level switch is damaged
Check the water level.
Remove or replace the filter cartridge.
Replace the low voltage switch or adjust the setting.
Thermal protection element protection reset
Check the line, contactor
3
The pump is running but does not reach the rated pressure and flow.
1. Pump reversal.
The safety filter is dirty.
There is air in the pump.
Flush solenoid valve open.
Improper adjustment of the valve: such as thick water valve open too much
Rewiring.
Clean or replace the filter.
Eliminate air in the pump.
Adjust the pressure after rinsing.
Re-adjust the valve
4
When the system pressure rises, the pump noise is large
Raw water flow is not enough.
Raw water flow instability, eddy current.
Check the original pump and piping.
Check the original pump and pipe, check the pipeline for leaks.
5
The solenoid valve is not closed after rinsing
Solenoid valve control element and line fault.
Electromagnetic valve mechanical failure.
Check or replace components and lines.
Remove the solenoid valve, repair or replace it.
6
Undervoltage shutdown
Raw water supply is insufficient.
The safety filter cartridge is clogged.
Improper pressure adjustment, automatic flushing caused by undervoltage.
Check whether the original pump and pretreatment system are working.
Cleaning, replacement filter.
Adjust the system pressure to the best condition, so that the pressure after the filter to maintain more than 20PSI.
7
Concentrated water pressure does not reach the rated value
Pipeline leaks.
The flushing solenoid valve is not fully closed.
Check and repair piping.
Check and replace the flushing solenoid valve.
8
The pressure is enough, but the pressure is not in place.
Pressure hose is blocked by foreign matter.
There is air in the hose.
Pressure gauge failure.
Check, clear the pipeline.
Eliminate air.
Replace the pressure gauge.
9
Deterioration of water quality conductance
Membrane contamination, clogging.
Chemical cleaning according to technical requirements.
10
Production decline
Membrane contamination, scaling.
Water temperature change.
Chemical cleaning according to technical requirements.
According to the actual water temperature to calculate the amount of water to calculate.
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