Handan injection water tube multi effect distilled water machine

Description :

　　The Handan injection water multi effect distillation machine refers to water that has undergone distillation and condensation operations. The water that has been steamed twice is called re distilled water, and the water that has been steamed three times is called triple distilled water. Low oxygen water is obtained by adding potassium permanganate and acid to industrial distilled water using the distilled water method. The entry provides a detailed introduction to the concept of distillation, distilled water, repeatedly distilled water, standards, production methods, advantages, and uses of distilled water; And comparative analysis was conducted with deionized water, high-purity water, and ultrapure water.

　　Distillation [2] is a thermodynamic separation process that utilizes the different boiling points of various components in a mixed liquid or liquid-solid system to evaporate low boiling point components and then condense them to separate the entire component. It is a combination of evaporation and condensation unit operations. Compared with other separation methods such as extraction and filtration crystallization, its advantage is that it does not require the use of solvents other than system components, thus ensuring that no new impurities are introduced.

　　After a distillation, non-volatile components (salts) remain in the container and are removed. Volatile components (ammonia, carbon dioxide, organic matter) enter the initial fraction of distilled water, usually only collecting the middle part of the fraction, which accounts for about 60%.

　　To obtain purer water for the Handan injection water column multi effect distillation machine, alkaline potassium permanganate solution can be added to the distilled water to remove organic matter and carbon dioxide; Add non-volatile acids (sulfuric acid or phosphoric acid) to make ammonia a non-volatile ammonium salt. Due to the presence of small amounts of water-soluble components in glass, quartz distillation vessels should be used for secondary or multiple distillations to obtain very pure water. The resulting pure water should be stored in quartz or silver containers.

　　Distilled water index

　　1. Burning slag content (≤ 0.01%) [3]

　　Manganese (Mn) content (≤ 0.00001%)

　　3 Iron (Fe) content (≤ 0.0004%)

　　5. Content of potassium permanganate substance (O) for reduction (≤ 0.0002%)

　　6 Transparency (mm) Colorless Transparent

　　7 resistivity (25 ℃) (≥ 10x104 Ω cm)

　　Nitric acid and nitrite (calculated as N) (≤ 0.0003%)

　　Ammonium (NH4) content (≤ 0.0008%)

　　10 alkaline earth metal oxides (calculated as CaO) (≤ 0.005%)

　　11 colors are light blue or colorless

　　Water in nature is not pure [2], usually containing various salts such as calcium, magnesium, iron, as well as organic matter, microorganisms, dissolved gases (such as carbon dioxide), and suspended solids. The Handan injection water column tube multi effect distilled water machine can remove non-volatile components by distillation method. By using distillation method and combining with the following measures, high-quality distilled water can be obtained.

　　① Remove the initial fraction (approximately 20% of the raw water), as the volatile components are mainly concentrated in the initial fraction.

　　② Remove the residual portion (about 20% of the raw water), as many non-volatile components are concentrated in the residual water.

　　③ Add certain substances to facilitate distillation. For example, adding NaOH can turn CO2 in water into non-volatile components, while adding KMnO4 can oxidize organic matter in water.

　　The production of distilled water involves boiling the source water and causing it to evaporate, condense, and recover. This process consumes a large amount of heat energy and is not too cost-effective. Other substances in the source water used to produce distilled water that evaporate when exposed to heat also condense into the distilled water. Such as phenols and benzene compounds that are harmful to health, and even mercury that can evaporate. To obtain pure water or ultrapure water, it is necessary to undergo two or three distillations and add other purification methods.

　　However, distilled water available for consumption in the market is unlikely to do so, and there is no need to do so.

　　Meanwhile, regularly drinking distilled water is equivalent to giving up 5% of the source of trace elements needed by the human body from water.

　　The laboratory uses electric heating to boil tap water, and the vapor condenses into distilled water through a condenser tube, which is collected and obtained.

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• Multi effect distillation of injection water in Handan