As we all know, pure water equipment has many usage requirements and a high probability of problems. So how should ultrapure water equipment be used correctly? What are the reasons why the electrical resistivity of pure water equipment decreases and does not meet the requirements?

How to use ultra pure water equipment?

After turning on the leaking water resource and connecting it to the power switch, the ultra pure water equipment can automatically produce water.

2. If you need to take ROro reverse osmosis water and DI double distilled water, open the water extraction gate valves on the opposite upper and lower sides.

3. After the water collection is completed, close the water intake, and the machine equipment will automatically shut down. At this time, open all 1 water intake, and it will automatically restart to produce pure water. For this recycling system, produce the required purified water. If not used for a long time, please turn off the water resources and switch the power supply separately.

4. If it is not used for a long time or before leaving work, please try to turn off the power of the water purifier switch and disconnect the drinking water leakage source to prevent accidents.

Reasons for the decrease in electrical resistivity of pure water equipment

1. There are difficulties in manipulating the current level of the system software

The electricity flow rate increases during work, and the water body produced by ultra pure water equipment continues to improve. But if the current is increased again after reaching a higher level, due to the excessive amount of H+and OH - cations caused by hydroelectric engineering, in addition to being used to rebuild epoxy resin, many abundant cations are used as current carrying cations for conductivity. In addition, due to the accumulation and blockage of many current carrying cations during the entire movement process, or the generation of anti external diffusion, the production water body is reduced.

2. The water output of the ultrafiltration equipment is not up to standard

If the salt content of the source water is high, it is proposed to use bipolar RO ultrafiltration equipment as the pre desalination device, with a conductivity maintained at 1-3% μ S/cm is appropriate; Leakage CO2 has a high water content. It is suggested to use vacuum distillation membrane or vacuum distillation tower to remove CO2. If the pH offset neutralizes too much, choose pH adjustment to keep the pH value of the leakage between 7-8.

3. Environmental pollution caused by iron

The iron pollution during the operation of ultra pure water equipment is a key reason for the decrease in the characteristic of its water producing resistors. If ordinary steel pipes are used in the source water and pre-treatment system software without anti-corrosion solutions, it will lead to an increase in the water content of iron elements in the system software, and the iron will become Fe (OH) 3 floating after being corroded. Epoxy resin has a strong adsorption capacity for iron, and when adsorbed by the resin, it can lead to irreversible reactions.

4. Environmental pollution caused by organic compounds

The environment is polluted by organic compound colloidal solutions in the inflow of ultra pure water equipment. RO reverse osmosis can only remove organic compound colloidal solutions with relative content exceeding 200. Less than 200 contents will enter the system software. These low content chemicals are adsorbed onto the pore rings of the skeleton diagram and the surface of the anion and cation membranes by the anion and cation exchange columns inside the components, blocking the displacement reaction of anions and cations and the rate of positive ions passing through the anion and cation membranes in water, resulting in a decrease in working characteristics and a decrease in the electrical resistivity of the produced water.

5. pH value transition

The system software leaks water and the CO2 content is high. If the CO2 content exceeds 10ppm, the system software cannot produce double distilled water.

Reasons for the electrical resistivity of pure water equipment not meeting the requirements

1. Is the water resource of ultra pure water equipment drinking water or pure water? Nowadays, it is common to use pure water for leakage

The production process of double distilled water is approximately: pure water zero pressure pump preparation treatment, pre purification column, super purification column, post-treatment process system software.

2. The duration of application of ultra pure water equipment

How long has the ultra pure water equipment been used? Even if there is wood, replace consumables and filter materials. If it is in a saturated state of epoxy resin, it will cause a decrease in water body; If the ultra pure water equipment is stopped for a long time, it is necessary to ensure the environmental hygiene of the machinery and equipment.

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