Secondary Ro+EDI purified water system

Secondary Ro+EDI purified water system

This utility model belongs to the field of water treatment technology and relates to an ultra pure water treatment system, specifically a two-stage RO+EDI ultra pure water treatment system. The present utility model relates to a dual stage RO+EDI ultra pure water treatment system, which sequentially comprises a pretreatment system, a first stage RO system, a second stage RO system, an EDI system, a water supply system, and a PLC. The first stage RO system, the second stage RO system, and the EDI system are installed in a closed cabinet, and the front of the cabinet is a control panel. The pure water outlet pipe of the first stage RO device of the first stage RO system is connected to the inlet of the second stage RO device of the second stage RO system, and the pure water outlet pipe of the second stage RO device of the second stage RO system is connected to the inlet of the EDI booster pump of the EDI system. This utility model has the beneficial effects of reducing the system footprint, making the system beautiful, tidy, preventing dust from entering, reducing water and electricity consumption, and reducing secondary pollution caused by first and second level pure water tanks.

　　Secondary Ro+EDI purified water systemClaims

1. A dual stage RO+EDI ultra pure water treatment system, sequentially comprising a pretreatment system, a first stage RO system, a second stage RO system, an EDI system, a water supply system, and a PLC, characterized in that the first stage RO system, the second stage RO system, and the EDI system are installed in a closed cabinet, and the front of the cabinet is a control panel. The pure water outlet pipe of the first stage RO device of the first stage RO system is connected to the inlet of the second stage RO device of the second stage RO system, and the pure water outlet pipe of the second stage RO device of the second stage RO system is connected to the inlet of the EDI booster pump of the EDI system.

2. The two-stage RO+EDI ultra pure water treatment system according to claim 1, characterized in that conductivity meter, resistivity meter, touch screen, alarm, control switch, pressure gauge, and flow meter are installed on the control panel.

3. The dual stage RO+EDI ultra pure water treatment system according to claim 1, characterized in that the first stage RO system and the second stage RO device of the second stage RO system are respectively equipped with a concentrated water reflux pipe, and the outlet pipes of the two concentrated water reflux pipes are connected to the inlet of the first stage high-pressure pump of the first stage RO system.

Instruction Manual

A dual stage RO+EDI ultra pure water treatment system

technical field

This utility model belongs to the field of water treatment technology and relates to an ultra pure water treatment system, specifically a two-stage RO+EDI ultra pure water treatment system.

Background Technology

Nowadays, the two-stage RO+EDI ultra pure water treatment system used in the electronic industry generally includes a pre-treatment system, a first stage RO system, a second stage RO system, an EDI system, and a water supply system arranged in sequence.

The raw water in the pre-treatment system's raw water tank is sequentially filtered through a mechanical filter, activated carbon filter, and softened water filter by a raw water pump to remove impurities (such as sediment, clay, organic matter, microorganisms, mechanical impurities, etc.) from the water; The water processed by the pretreatment system is then filtered through the security filter in the first stage RO system and pressurized by the first stage high-pressure pump before being sent to the first stage RO device to remove salt from the water, resulting in pure water; The purified water treated by the first stage RO system is sent to the first stage pure water tank for storage. The purified water in the first stage pure water tank is pressurized by the second stage high-pressure pump of the second stage RO system and sent to the second stage RO device for further removal of salt in the water, resulting in purer water; The purified water treated by the secondary RO system is sent to the secondary pure water tank for storage. The purified water in the secondary pure water tank is sent to the EDI device through the EDI booster pump of the EDI system to further remove the salt in the water and obtain ultrapure water; The ultra pure water processed by the EDI system is sent to the EDI water tank for storage. The ultra pure water in the EDI water tank is pressurized by the ultra pure water pressure pump in the water supply system and sent to the ultraviolet sterilizer for sterilization and disinfection. Then, the salt (cation) components in the water are removed by the exchange of groups in the ion exchange resin through a polishing mixed bed to reduce the conductivity of the water. After that, fine suspended solids, sediment, and impurities are filtered by a precision filter and sent to the water point.

After being processed by the above five systems in sequence, the ultra pure water obtained from raw water treatment can meet the requirements of electronic industry manufacturers. However, due to the independent installation and control of each system, and the storage and supply of water to the subsequent systems through an intermediate water tank, the entire system occupies a large area, consumes a lot of electricity and water energy, and causes secondary pollution.

Utility model content

The purpose of this utility model is to provide a dual stage RO+EDI ultra pure water treatment system that reduces the footprint, energy consumption, and secondary pollution, in order to solve the shortcomings of the existing technology.

The technical solution adopted by this utility model is a dual stage RO+EDI ultra pure water treatment system, which sequentially includes a pretreatment system, a first stage RO system, a second stage RO system, an EDI system, a water supply system, and a PLC. The first stage RO system, the second stage RO system, and the EDI system are installed in a closed cabinet, and the front of the cabinet is a control panel. The pure water outlet pipe of the first stage RO device of the first stage RO system is connected to the inlet of the second stage RO device of the second stage RO system, and the pure water outlet pipe of the second stage RO device of the second stage RO system is connected to the inlet of the EDI booster pump of the EDI system.

The control panel is equipped with conductivity meter, resistivity meter, touch screen, alarm, control switch, pressure gauge, and flow meter.

The first stage RO system and the second stage RO device are each equipped with a concentrated water reflux pipe, and the outlet pipes of the two concentrated water reflux pipes are connected to the inlet of the first stage high-pressure pump of the first stage RO system.

Compared to existing technologies, this utility model has the following beneficial effects:

1. This utility model installs a first level RO system, a second level RO system, and an EDI system in a closed cabinet. The pure water outlet pipe of the first level RO system and the first level RO device is connected to the inlet pipe of the second level RO device of the second level RO system. The pure water outlet pipe of the second level RO device of the second level RO system is connected to the inlet pipe of the EDI booster pump of the EDI system, which can reduce the system footprint, make the system beautiful, clean, prevent dust from entering, reduce water and electricity consumption, and reduce the secondary pollution caused by the first and second level pure water tanks.

2. Set the front of the cabinet as the control panel, which is equipped with conductivity meter, resistivity meter, touch screen, pressure gauge, flow meter, alarm and control switch. The system is easy to operate, fully automatic control, and does not require personnel supervision to prevent untrained personnel from operating without authorization, making it more secure.

3. Concentrated water return pipelines are installed separately on the first and second RO systems to reduce the discharge of concentrated water and save water treatment costs.