Understanding of pure water equipment

        Due to the late growth of water treatment industry in China, many domestic equipment users are not clear about the distinction between pure water equipment and ultra pure water equipment. Therefore, pure water equipment and ultra pure water equipment are often referred to as pure water equipment (in water treatment practitioners, equipment with water quality ≥ 10m Ω. Cm is usually referred to as ultra pure water equipment, otherwise as pure water equipment); At the same time, due to the non-standard terminology of the industry, pure water equipment has different names in different industries, such as: Deionized water equipment is often called in the chemical industry and daily cosmetics industry, and purified water equipment is also called in the medical pharmaceutical and medical equipment industry; However, no matter what the name is, the general process flow is one-to-one, only for the specific details of different industries are different (for example, the purified water equipment used in the pharmaceutical industry has strict requirements on bacteria, and it also needs to be able to pass GMP, so it is all necessary for sanitary stainless steel pipes and to ensure the bacterial pollution in the pipes). In order to facilitate the description of the following, pure water equipment is used for elucidation Narrated.

        1、Overview of pure water production equipment

        In order to meet the needs of users, meet the standard water quality, reduce the pollution at all levels as much as possible, extend the service life of the equipment and reduce the maintenance workload of the operators; in the process design, take the water that meets the national tap water standard as the source water, and pass through the pretreatment system, reverse osmosis system, ion exchange mixed bed (EDI electric demineralization system) and other systems, According to different users' different requirements for pure water, a set of customized pure water treatment equipment is produced in the way of arrangement and combination.

        At the same time, The water tank in the system is equipped with liquid level control system, the water pump is equipped with pressure protection device, on-line water quality detection and control instrument, and PLC programmable controller can be used according to the requirements, so that no one is on duty. At the same time, the method of combining the recommended process materials with the customer's requirements is adopted, so that the equipment has higher cost performance and equipment reliability compared with other similar products. If the demand for water is not clear, please refer to the industry application.

        2、Pure water equipment in the market and information on selecting pure water equipment

        To purchase a set of suitable pure water treatment equipment, it is necessary to know the water source, water quality status, treatment quantity, effluent quality requirements and equipment control mode of the equipment, and a regular water treatment company can know the general process flow; at this time, design and material selection will be crucial to directly affect the price of a set of pure water treatment equipment.

        After purchasing a set of pure water equipment, the following information may be able to help you identify:

        Look at the appearance of the device

        Generally, the appearance of pure water treatment equipment produced by regular manufacturers is very exquisite.

        1. First of all, look at the frame. The welds are flat without unevenness. The whole gives a sense of heaviness.

        2. See the connection of the pipeline, the connection of the pipeline is horizontal and vertical; the material of the pipeline, the material of the high-pressure part generally adopts stainless steel pipe fittings, or UPVC pipe fittings, the stainless steel pipe fittings need to see whether the surface finish is uniform, open one of the loose knots (by order) to see its thickness; UPVC pipe fittings to see its color, generally dark gray and even color, open one of the knots (by order) to see its thickness, regular manufacturers of pipe fittings are relatively thick.

        3. High pressure pump and raw water booster pump are products of regular manufacturers.

        4. The tank body of the pretreatment part must be thick and strong. In order to save cost, some small manufacturers choose the tank body which is thin and easy to have problems.

        Ask for details of some equipment

        1. Reverse osmosis membrane manufacturer and origin.

        2. Whether the desalination rate and water flow meet your requirements.

        3. Control principle of electric control part.

        4. If it is used in the pharmaceutical industry, it is necessary to understand the requirements of the whole set of equipment in GMP, Pharmacopoeia and process guide.

        5. Regional impact on the actual process requirements and on-site water quality of purified water equipment and injection water equipment

        Is the after-sales service up to standard

        1. Whether it is installed and debugged on site.

        2. Can we train on-site operators.

        3. Whether there is any auxiliary information to pass GMP certification.

        4. Generally, the warranty period is one year. If you can do the above, you can choose a good set of pure water equipment.

        3、Common process flow of pure water equipment

        Several common cases are listed as follows:

        Traditional industrial pure water equipment: pretreatment system reverse osmosis system intermediate water tank mixed bed pure water tank water object (≥ 15m Ω. Cm)

        Electroplating pure water equipment: pretreatment - level 1 reverse osmosis - intermediate water tank - dosing machine (pH regulation) - level 2 reverse osmosis - pure water tank - pure water pump - ultraviolet sterilizer - Filter - EDI device - ultra pure water tank - water object (≥ 15m Ω. Cm)

        Chemical pure water equipment: raw water pump sand filter carbon filter cation exchanger anion exchanger (common old process)

        Medical purified water equipment: pretreatment-level 1 reverse osmosis) - intermediate water tank - dosing machine (pH regulation-level 2 reverse osmosis - sterile water tank (disinfection) - pure water pump - ultraviolet sterilizer - Filter - water object (made of all stainless steel)

        4、 Application field

        Microelectronics industry: production of electrolytic capacitor, electronic tube, picture tube and negative Ji ray tube, production of fluorescent screen of black and white picture tube, production of liquid crystal display, production of transistor, production of integrated circuit and production of new electronic materials;