Introduction to the core advantages of equipment

1. Ultra-pure water quality assurance

High resistivity: The resistivity of the output water is as high as 18.2MQ·cm. The schematic diagram shows that the raw water is treated layer by layer, and the ions in the water are continuously removed, and finally reaching ultra-high purity. According to data comparison, the difference between the resistivity of ordinary pure water and the resistivity of ultra-pure water produced by this equipment, such as ordinary pure water, may be between 0.1-1MQ·cm, highlighting the excellence of the water quality of this equipment.

2. Efficient and stable operation

250 L/H stable water production: In the form of a dynamic chart, the water production flow curve of the equipment in different time periods is always stable at around 250 liters/hour, with extremely small fluctuations, reflecting the stability of the equipment's water production.

Process flow of 250 liter EDI ultrapure water system

Raw water tank - quartz sand filtration - activated carbon filtration - resin softening filtration - security filter - grade high pressure pump - first-stage reverse osmosis system second-stage high pressure pump - second-stage reverse osmosis system - intermediate pure water tank - EDI water supply pump - precision filter - EDI module - ultrapure water tank - water supply pump - precision mixing bed - microporous filter - ultrapure water point

Detailed explanation of the core principles of the equipment

Pre-processing stage

1. Quartz sand filter: Large particles of silt, rust, colloidal substances, suspended matter in the raw water are intercepted and filtered by quartz sand. Particle impurities (more than 20um)

2. Activated Carbon Filter: Activated Carbon Filter can effectively remove residual chlorine and extend the use of membranes.

between.

3. Resin softening filter: How to exchange resin with calcium and magnesium ions in water, reduce the hardness of water, prevent scale from being generated during subsequent treatment, and affect equipment performance.

Reverse osmosis stage:

1.-level reverse osmosis: Detailed display of the working principle of the reverse osmosis membrane. Under the action of a high-pressure pump, raw water forms a pressure difference on the surface of the semi-permeable membrane. Water molecules pass through the semi-permeable membrane, while impurities such as ions, organic matter, bacteria are intercepted. It is marked that the removal rate of ions by first-level reverse osmosis can reach more than 98%, and the conductivity range of the produced water is generally 20-1us/cm.

2. Secondary reverse osmosis: Explain the process of further in-depth treatment of first-level reverse osmosis water production, and again improve the purity of water quality. Through comparing the data, it is shown that after secondary reverse osmosis, the water quality has significantly improved in terms of electrical conductivity, impurity content, etc., such as the electrical conductivity can be reduced to below 1us/cm.

EDI principles and workflow

EDl equipment, also known as electric d-esalination, skillfully integrates electrod-ialysis technology and ion exchange tec-hnology. The directional migration of ionsis realized under the action of the field,so as to complete the deep desalinationof water. At the same time, the hydrogenions and hydroxide ions generated by wa.terionization can regenerate the ion exchange resin. pure water. Commonly usedin pharmaceutical industry water, boilerwater treatment, pure water used in bev-erage industry and other fields.

Ultrapure water equipment parameters

Case 1: [Shanghai Semiconductor Technology Co., Ltd.]

1. Customer background: Introduction This company is a company with high popularity in the electronic semiconductor industry. It is mainly engaged in the research and development and production of semiconductor chips, etc., and has extremely strict requirements on the water quality of production water.

2. Face problems: When using original pure water equipment, the water quality is unstable and impurities often exceed the standard, resulting in a low yield rate of the chip and an increase in production costs.

3. Solution: Our company's 500 liters/hour EDI ultrapure water equipment was selected. According to the company's production process and water needs, a personalized water treatment plan was customized, and the equipment's pretreatment, reverse osmosis and EDI systems were optimized.

4. Implementation effect: After installing this equipment, the water quality has been significantly improved, fully meeting the company's strict requirements for ultra-pure water. The yield rate of solar panels has increased from 80% to more than 95%, and the production cost has been greatly reduced.