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Your Location: Home >> News >> Technical support >> Do commercial vacuum freeze dryers need to be cleaned?

Do commercial vacuum freeze dryers need to be cleaned?

Release Date: 2020/5/19 10:55:09 .
Browse: 1017

  Commercial vacuum freeze dryer is composed of refrigeration system, vacuum system, heating system, electrical instrument control system. The main components are drying oven, condenser, freezing unit, vacuum pump, heating / cooling device, etc. The working principle of the commercial vacuum freeze dryer is to freeze the dried items below the triple point temperature first, and then to sublimate the solid moisture (ice) in the items directly into water vapor under vacuum conditions, and to exclude them from The items are dry. After pre-processing, the materials are sent to the quick-freezing warehouse for freezing, and then sent to the drying warehouse for sublimation and dehydration, and then packed in the post-processing workshop. The vacuum system establishes a low-pressure condition for the sublimation drying bin, the heating system provides the latent heat of sublimation to the materials, and the refrigeration system provides the required cooling capacity to the cold trap and drying chamber. Commercial vacuum freeze dryers use radiant heating, materials are heated uniformly; adopt water-trapping cold traps, and can achieve rapid defrosting; adopt vacuum units, and can achieve oil-water separation; adopt parallel centralized refrigeration system, multi-channel cooling on demand, working conditions Stable, beneficial to energy saving; adopting artificial intelligence control, high control precision and easy operation.
  The quality requirements for freeze-dried products are: unchanged biological activity, uniform appearance and color, full shape, firm structure, fast dissolution rate, and low residual moisture. To obtain high-quality products, you should have a comprehensive understanding of the theory and process of freeze-drying. The freeze drying process of commercial vacuum freeze dryer includes three stages: pre-freeze, sublimation and re-freeze-drying. Reasonably and effectively shortening the freeze-drying cycle has obvious economic value in industrial production.
  Commercial vacuum freeze dryers are widely used, and the frequency of use is also very high, so it is important for companies to use commercial vacuum freeze dryers normally. We all know that cars need regular maintenance after driving a certain distance. The same is true for other mechanical equipment including commercial vacuum freeze dryers. It is necessary to do the cleaning work of commercial vacuum freeze dryers.
  Long-term work of commercial vacuum freeze dryer will bring wear and dust and other impurities to cover the work of accessories, let us take a look at the hazards of commercial vacuum freeze dryer not cleaning:
  When the evaporator of the indoor unit of the commercial vacuum freeze dryer and the condenser of the outdoor unit are covered with dust, it will affect the dissipation of cold air and heat, which will lead to the weakening of the refrigeration or heating effect of the commercial vacuum freeze dryer, which will cost electricity and time When the vacuum freeze dryer is turned on, the bacteria in the commercial vacuum freeze dryer will be directly blown into the indoor air, causing direct harm to the human body. After the commercial vacuum freeze dryer was stopped in Yanxia in the past, the cleaning of the commercial vacuum freeze dryer was neglected, so the large amount of dust, mites, pollen, lice and mold adsorbed on the vacuum suction screen of the commercial vacuum freeze dryer began to proliferate. When the commercial vacuum freeze dryer is used again the following year, these germs, viruses, molds and dust are blown out by the dryer, often causing large-scale respiratory infections and allergic dermatitis.
  Commercial vacuum freeze dryer cleaning method:
  Commercial vacuum freeze dryers generally need to be cleaned and maintained before use in summer or after use in autumn. To kill germs in commercial vacuum freeze dryers, professional technicians should wash them once with a special cleaning solution for commercial vacuum freeze dryers.
  Maintenance tips:
  The cleaning of commercial vacuum freeze dryers directly affects human health. The so-called dryer disease is also related to the cleaning of commercial vacuum freeze dryers.

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