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Your Location: Home >> News >> Technical support >> Industrial vacuum freeze dryer maintenance these points can be used for a long time

Industrial vacuum freeze dryer maintenance these points can be used for a long time

Release Date: 2020/3/12 16:09:50 .
Browse: 48

  Industrial vacuum freeze dryer maintenance these points can be used for a long time
  Industrial vacuum freeze dryer is composed of refrigeration system, vacuum system, heating system, electrical instrument control system. The main components are drying box, condenser, refrigeration unit, vacuum pump, heating / cooling device, etc. The working principle is to freeze the dried articles below the triple point temperature, and then sublimate the solid water (ice) in the articles into water vapor under vacuum conditions, remove them from the articles, and dry the articles. After pre-processing, the material is sent to the freezing bin for freezing, and then sent to the drying bin for sublimation and dehydration, and then packed in the post-processing workshop. The vacuum system establishes low-pressure conditions for the sublimation drying warehouse, the heating system provides the sublimation latent heat to the material, and the refrigeration system provides the required cooling capacity to the cold trap and drying chamber. Industrial vacuum freeze dryer adopts radiant heating to uniformly heat the materials; adopts water-capturing cold traps to achieve rapid defrost; uses vacuum units to achieve oil-water separation; uses parallel centralized refrigeration systems to provide multiple channels of cooling on demand, working conditions Stable, conducive to energy saving; adopting artificial intelligence control, high control accuracy and easy operation.
  Industrial vacuum freeze dryer has excellent performance, which can make the water in food directly sublimate and dry under solidification and vacuum conditions, without liquid evaporation. It can preserve the original color, aroma, taste and shape of the food to a large extent, the original nutritional components and active substances are rarely damaged, and the water is rehydrated quickly without the need of preservatives. Products are popular in the market, mainly including quick-freezing warehouses for freezing materials, drying silos for sublimation dehydration, and auxiliary systems such as refrigeration, vacuum, and heating.
  Maintenance and maintenance of industrial vacuum freeze dryer:
  1. Be careful to remove the moisture in the cold trap chamber before work. Dry the cold trap if necessary. It is recommended to open the drain valve before closing the freeze-drying work.
  2. Do not switch frequently during use. If the refrigerator stops running due to operation errors, it cannot be started immediately. Wait at least 20 minutes before restarting to prevent damage to the refrigerator.
  3. After each freeze-drying, after the ice on the cold trap coil turns into water, clean it with a towel and freeze dry. After turning the "inflation valve" to inflate the cold trap, it must be slow to avoid damaging the vacuum gauge.
  4. Regularly check the liquefier at the bottom of the machine for dust and dirt, and clean the industrial vacuum freeze dryer if necessary.

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