超纯水系统设备的脱盐核心部件为进口反渗透膜组件，超纯水系统设备通常由预处理部分，反渗透主机部分，后处理部分共同组成。
The desalination core component of the ultra pure water system equipment is the imported reverse osmosis membrane component. The ultra pure water system equipment is usually composed of a pre-treatment part, a reverse osmosis host part, and a post-treatment part.
1、预处理由石英砂过滤器、活性碳过滤器、全自动软水器、精密过滤器组成(我司采用全自动控制阀头)，也可选用超滤系统作为预处理，但通常工程造价要高。预处理主要目的是去除原水中含有的泥沙，铁锈、胶体物质、悬浮物、色度、异味、生化有机物。当原水中硬度较高时，可选择全自动软水器，这样有效的保护了反渗透膜，从而延长了反渗透膜的使用寿命。
1. Pre treatment reasons include quartz sand filters, activated carbon filters, fully automatic water softeners, and precision filters (our company uses fully automatic control valve heads). Ultrafiltration systems can also be used for pre-treatment, but the engineering cost is usually high. The main purpose of pre-treatment is to remove sediment, rust, colloidal substances, suspended solids, chromaticity, odor, and biochemical organic matter from the raw water. When the hardness of the raw water is high, a fully automatic water softener can be selected, which effectively protects the reverse osmosis membrane and extends its service life.
2、反渗透主机主要由高压泵、膜壳、进口反渗透膜组件，在线仪表、控制电气等组成。只要膜的数量及泵的型号选型得当，反渗透主机脱盐率及产水量都能达到额定指标，出水电导率可保证在≤10us. CM以下，(原水电导率小于500us/cm,工作温度：1～40℃)
2. The reverse osmosis host mainly consists of a high-pressure pump, membrane shell, imported reverse osmosis membrane components, online instruments, control electrical components, etc. As long as the number of membranes and pump model selection are appropriate, the desalination rate and water production of the reverse osmosis host can reach the rated indicators, and the effluent conductivity can be guaranteed to be ≤ 10us Below CM, (raw water conductivity less than 500us/cm, working temperature: 1-40 ℃)
3、后处理部分是对反渗透制取的纯水作进一步的深化处理以制取超纯水，通常是离子交换混床设备或EDI设备，根据客户要求，出水阻率可达到18.2MΩ.CM，如果是应用在直饮水工艺上，则加上杀菌装置即可，通常为紫外线杀菌器或者臭氧发生器，从而使生产出来的水达到直饮标准。
3. The post-treatment part is to further deepen the treatment of pure water produced by reverse osmosis to produce ultra pure water, usually using ion exchange mixed bed equipment or EDI equipment. According to customer requirements, the water resistance can reach 18.2M Ω. CM. If it is used in direct drinking water technology, sterilization equipment can be added, usually UV sterilizer or ozone generator, to make the produced water meet the standard for direct drinking.
交换反应在模组的纯化学室进行，在那里阴离子交换树脂用它们的氢氧根据离子(OH)来交换溶解盐中的阴离了(如氯离子Cl)。相应地，阳离子交换树脂用它们的氢离子(H)来交换溶解盐中的阳离子(如Na)。
The exchange reaction takes place in the pure chemical chamber of the module, where the anion exchange resin exchanges ions (such as chloride ion Cl) in dissolved salts with their hydrogen and oxygen based on ions (OH). Correspondingly, cation exchange resins use their hydrogen ions (H) to exchange cations (such as Na) in dissolved salts.