Načelo sušilnika za zamrznitev, kaj je vakuumski zamrznitev?

First, let's learn about vaporization and sublimation{{0}} The process of a substance changing from liquid phase to gas phase is called vaporization. For water, if the ambient temperature is greater than 0 degrees and the water vapor partial pressure is less than the saturated vapor pressure of water, vaporization can proceed smoothly. Most current drying methods work according to this principle. The process of matter changing from solid phase to gas phase is called sublimation. If the ambient temperature is less than 0 degrees, water exists in the form of solid ice, and the partial pressure of water vapor in the environment is less than the saturated vapor pressure of water on the ice surface, then sublimation can proceed smoothly. If the partial Tlak vodne pare v okolju je večji od nasičenega parnim tlakom vode na ledeni površini, vodna para se kondenzira v ledu ali zmrzal

Kaj je zamrznjeno sušenje? It is a common concept that after washing clothes, the clothes should be dried in a higher temperature, ventilated and dry environment. The higher the ambient temperature and the higher the air dryness, the faster the clothes will dry. But in severely cold areas, people find that washed clothes will dry out if they are left in the sun where the ice and snow never melt. In addition, people have also found Ta nepakirana hrana, nameščena v hladilniku in hladilniku

Kaj je zamrznjeno sušenje? It is a common concept that after washing clothes, the clothes should be dried in a higher temperature, ventilated and dry environment. The higher the ambient temperature and the higher the air dryness, the faster the clothes will dry. But in severely cold areas, people find that washed clothes will dry out if they are left in the sun where the ice and snow never melt. In addition, people have also found Ta nepakirana hrana, nameščena v hladilniku in hladilniku, je trdo zamrznjena, toda površina je suha . To so pojavi, ki sušijo z zamrznitvijo . Uporaba vakuumskega sušilnika za zamrzovanje Naprej točka . V tem času je voda v treh stanjih tekočine, plina in trdnih . tej točki Trojna točka vode .. Ko se temperatura dvigne, se voda pojavi v dveh fazah: pare in tekočina; Ko se temperatura zniža, se v dveh fazah pojavi voda: hlapi in trdna . Ko voda zamrzne v led, iz prejšnje študije vemo, da dokler je delni tlak vodne pare v okolju manjši od nasičenega pare tlaka ledu pri ustrezni temperaturi, se led nemudoma spreminja iz trdne in podsojenega procesa {{14}, ki se pozivamo, ki ga podvržemo, ki se podvržejo posušenju {{14}, ki se pozivamo s trdnim postopkom {{14}, ki se pozivamo s trdnim postopkom {{14}. Plenomen, ki se led, ki se spreminja neposredno iz trdnega v plin, imenujemo sublimacija . material posušimo, medtem ko je zamrznjen . Med postopkom sušenja se led ne stopi . postopek, v katerem se led utripa neposredno iz trdne države in se imenuje Freeze in se zamrzne in se imenuje Freeze in se zamrzne, se led (20 {20 {20 imenuje Freeze in se zamrzne, in se imenuje Freeze in Freeze, ki se imenuje Freeze in se zamrzne, in se imenuje Freeze in Freeze in Freeze, ki se imenuje Freeze, in se imenuje Freeze in Freeze in Freeze, ki se imenuje Freeze, in se imenuje Freeze in Freeze, ki se imenuje Freeze, in se imenuje Freeze in Freeze in Freeze se Imenuje Freeze in Freeze.

Next, let's understand the principle of freeze-drying. As we said before, when the temperature is 0 degrees, water is just at the freezing point. At this time, water is in the three states of liquid, gas, and solid. We call this point the triple point of water. When the temperature goes up, water appears in two faze: pare in tekočina; Ko se temperatura zniža, se v dveh fazah pojavi voda: hlapi in trdni . Ko voda zmrzne v led, iz prejšnje študije vemo, da dokler je delni tlak vodne pare v okolju manjši od nasičenega pare tlaka ledu pri ustrezni temperaturi, se bo led spremenil iz trdnih procesov, ki jih pozivamo, da se s trdnim postopkom {{7}, ki ga pozivamo {{7}. phenomenon of ice changing directly from solid to gas is called sublimation. We dry the material while it is frozen. During the drying process, the ice does not melt. The process in which the ice vaporizes directly from the solid state and dries is called freeze-drying (referred to as freeze-drying).