Requirements and principles for cleaning of multi-effect distilled water machine

2023-10-25 06:32:47
The tubular multi-effect distilled water machine is an energy -efficient distilled water preparation equipment. Due to its reliable performance and stable quality of distilled water, it is used more and more widely. Like other water treatment devices, multi-effect distilled water machine needs maintenance during use. Cleaning is one of the important items. According to the structural characteristics of the multi-effect distilled water machine, chemical cleaning is generally used.
Requirements and principles for the cleaning of multi-effect distilled water machine : When the multi-effect distilled water machine finds a significant drop in water production during use, or when there is obvious scaling in the tower during routine inspection, it should be cleaned. The reason for the formation of scale is mainly that the inorganic salts remaining in the feed water are formed in contact with the inner wall of the device for a long time and are formed at a relatively high temperature and pressure. There are two kinds of scales produced in the multi-effect distilled water machine. One is boiler scale, the other is silica scale. Different cleaning agents should be used for cleaning. 1. For boiler scale, sulfamic acid (NH2SO2OH) can be used. In use, deionized water is used to prepare a cleaning solution with a concentration of 1%, and the pH is between 1 and 2, and is heated to about 60 °C. Phosphoric acid (H3PO4) can also be used. When used, it can be prepared into a 2% concentration cleaning solution with deionized water and heated to about 65 °C. 2. For silica scale, ammonium difluoride (NH4HF2) can be used. Deionized water is formulated into a 1.5% solution and heated to 50 ° C ~ 60 ° C.

Vtm Test Kit

The generic name of VTM Virus Sampling Tube is a single-use virus sampling tube, which is generally used for the detection and sampling of infectious pathogenic microorganisms in disease control departments and clinical departments. It is suitable for detection and sampling of influenza viruses (including general influenza, highly pathogenic viruses, H1N1 influenza virus, etc.), hand, foot and mouth virus, new coronavirus, measles and rubella and other types of viruses. VTM virus sampling tube can also be used for detection and sampling of Mycoplasma, Chlamydia and Ureaplasma urealyticum.

The virus and related samples in the VTM virus sampling tube should be stored and transported within 48 hours in a refrigerated state (2-8°C). Viruses and related samples can be stored for a long time in -80℃ environment or liquid nitrogen environment. The virus can maintain the activity of the virus in a lower temperature range, reduce the speed of virus decomposition, and improve the positive rate of virus isolation.

The VTM virus sampling tube is generally equipped with a disposable flocking swab. From the appearance point of view, the flocking swab is white and soft. Using this soft brush during the sampling process will make the user feel no foreign body, and it is suitable for different Partial sampling person. Moreover, the flocking swab is designed with a breaking point that conforms to the length of the sampling tube and the natural orifice of the human body, which is not only convenient for sampling but also convenient for transportation of the specimen.

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