Ⅰ、Brief introduction

RF-RO-500L/H integrated purified water treatment unit is self-developed newly purified water treatment equipment, which based on introduction of international advanced technology and combination of domestic actual situation. The main component adopts the international most advanced imported reverse osmosis membrane as the main filter component. It is consist of mechanical filter, active carbon filter, ion exchanger, precision security filter, stainless steel multi–stage centrifugal pump, cycling back washing system, ion reclamation system, high and low voltage protection and control system, electric time-lag control system, conductivity current display system and reserve osmosis membrane filter system etc. It has functions such as electric control, automatic washing, high-low voltage protection and automatic continuous water discharge. It has advantages of rational and compact structure, small sized occupation and easy to operation, good performance, reliability and safety and etc.

The working principle of the reverse osmosis membrane is: enable solvent (water in general) to go through the reverse osmosis membrane to segregate, refine and concentrate. Reverse osmosis membrane can remove the impurities, colors and off-flavor, hazardous bacteria, virus, heavy metals, high modular organics, ion, fine particles and dissolved salt and etc. Desalting rate of single membrane is high than 99%. RO membrane filter has been widely used in water treatment of food, chemical, medicine, industry, sewage and etc.

Ⅱ、Main Technical Parameter

A、Technical Parameter

B. Standard of Outlet Water

Conductivity 〈20us/cm²      Bacteria 〈20, fully meet the State’s Purified Water Standard GB17303-1998

Ⅲ、Introduction of components

RF-BYRO-500L/H is consist of mechanical filter, active carbon filter, ion exchanger, precision security filter, stainless steel multi–stage centrifugal pump, cycling back washing system, ion reclamation system, high and low voltage protection and control system, electric time-lag control system, conductivity current display system and reserve osmosis membrane filter system etc., as shown in following chart:

One way valve back washing  back washing back washing

raw water water pump mechanical filter       active carbon filter       ion exchange      ion

                                                                                                             regeneration

                                                                     sewage discharge

              Precision security filter multi-stage pump RO membrane filter

                                                                     Purified water outlet

Cycling washing water box washing & discharge

A、 High voltage protection relay

Hydraulic protection device will avoid unnecessary damage when hydraulic pressure exceeds rated pressure. That is, system will stop running automatically once over pressure.

B、Mechanical Filter And Active Carbon Filter

The mixing filter means to put into quartz and active carbon in sequence, that is, quartz in below, active carbon in upper. Quartz sand is used to filter the impurities of original water as filter media, which can purity the original water and is convenient for back washing. High quality active carbon is used to absorb color and off-flavor of original water as filter media, which can purify the color and adjust taste of original water and is convenient for back washing.

C、Stainless Steel Ion Exchanger

With high quality 732 resin ion, it will filter and decrease effectively calcium and magnesium ion, sodium chloride ion of original water as exchanging media, which can adjust PH value, soften and adjust taste of original water and is convenient for back washing and regeneration of ion.

D、Low Pressure Protection Switch

Fitted on the inlet of original water, low pressure protection switch is used to protect automatically multi-stage booster pump and avoid damage from idling of pump owing to water shortage by detecting if hydraulic pressure meet requirements.

E、Precision Protection Filter

The precision protection filter adopts high performance Polyvinyl acetate filter core and its hole diameter is only 5mu, which can filter residues remained in the water after pretreatment and prevent the residues flowing into RO membrane and blocking the membrane.

F、Multi-stage Centrifugal High Pressure Pump

Multi-stage Centrifugal High Pressure Pump is used to boost the hydraulic pressure in operation system of RO purified water machine, which ensure to meet working pressure of the RO membrane. For details, please refer to the instructions of high pressure pump.

G、Water feeding Solenoid Valve

The solenoid valve is fitted on the inlet of water. When RO machine is filled with water and stop running, solenoid valve will close automatically and cut off water feeding by high pressure pump to avoid water in RO machine reverse flowing.

H、Purified Water Flow meter

Purified water flow meter adopts panel-typed instant display meter, which is good looking and accurate in measuring. It is used to display output of RO purified water machine.

I、 RO Membrane housing Component and Membrane

RO membrane housing is made of SUS304 stainless steel and polished internally and externally. Using ABS food level plastic of head, it has characteristic of durable in use, good looking and sanitation. RO membrane adopts world’s most advanced   membrane imported from USA, which ensure purified water produced meet the standard.

J、 Water Quality Conductivity Meter

Equipped with two conductivity meters, this system is able to detect conductivity range 0-2000us/cm of original water and purified water produced on-line.

K、 Time-lag Relay

High precision digital display relay mainly ensures accurate time lag start of automatic washing and high pressure pump.