Pure Water Equipment for Optical Industry

Pure Water Equipment for Optical IndustryUltrapure water equipment for optical lens cleaning. During the manufacturing process, optical lenses may have solvents, chemicals, and other residues adhering to their surfaces that require cleaning. The reverse osmosis + EDI configuration ensures the water quality output of the equipment, meeting the requirements for cleaning water. Detailed introduction to Yayun Company's ultrapure water equipment. Typically, the water produced by a two-stage reverse osmosis system enters the EDI ultrapure water system. The majority flows into the resin/membrane interior, while another portion flows along the outer side of the membrane plate to wash away ions that have permeated outside the membrane. The resin traps dissolved ions in the water. Under the action of electrodes, the trapped anions move toward the positive electrode, and cations move toward the negative electrode. Cations pass through the cation membrane and are discharged outside the resin/membrane, while anions pass through the anion membrane and are discharged outside the resin/membrane. The concentrated ions are discharged from the wastewater flow path, and deionized water flows out from within the resin/membrane. Features of Ultrapure Water Equipment: 1. Wide voltage stabilization range, can operate normally even with input voltage fluctuations of ±20%. 2. High efficiency, the product includes a power factor correction circuit, achieving a power factor of up to [value]. 3. Output voltage and current are continuously adjustable, with automatic switching between voltage stabilization and current stabilization. 4. High safety performance, the output can be short-circuited arbitrarily without damaging the machine, and the short-circuit current can be adjusted continuously from zero to maximum. 5. Utilizes high-frequency pulse width modulation technology, offering strong stability, high precision, small size, light weight, and low power consumption. The equipment adopts a method that combines recommendations with customer requirements in process material selection, truly achieving unattended operation with higher cost-effectiveness and equipment reliability. Raw water typically contains sediment particles, colloids, bacteria, algae, and microorganisms.

Pure Water Equipment for Optical IndustryRO What are the symptoms of contamination? After contamination occurs in a reverse osmosis system, the general symptoms are as follows. Increased pressure drop between the system feed water and concentrate. Changes in reverse osmosis feed water pressure. Changes in normalized product water flow. Changes in normalized salt passage. How to reduce failures and decrease the frequency of reverse osmosis cleaning? To reduce failures and decrease the frequency of reverse osmosis cleaning, the following measures should be taken. Design the reverse osmosis system based on a complete analysis of water quality. Determine the SDI value of the RO feed water before proceeding with the design. If the feed water quality changes, corresponding design adjustments are needed. Ensure adequate pretreatment. Select the correct membrane elements. Choose a relatively conservative water flux. Select an appropriate water recovery rate. Design sufficient cross-flow velocity and concentrate flow velocity. Normalize operational data. When is chemical cleaning required? Removal of contaminants can be achieved through chemical cleaning and physical flushing, and sometimes by altering operating conditions, as a general principle. Cleaning should be performed under the following circumstances: When the product water flow decreases to 85%–90% of the normal value under normal pressure. To maintain normal product water flow, the temperature-corrected feed water pressure increases by 10%–15%. Product water quality decreases by 10%–15%, salt passage increases by 10%–15%. Operating pressure increases by 10%–15%. The pressure difference between various stages of the RO system increases significantly.