With the requirements of low temperature preservation of items, it is more and more detailed, and the purchase of ultra -low -temperature preservation boxes have become an important task for scientific research, medical and food industries. During the sales process, we found that many customers have not made clear the purchase of ultra -low temperature saving boxes. The standards of the standard often find that the temperature deviation is too large, the preservation box cannot enter the room, and the items cannot be put. Let me learn how to choose a suitable ultra -low temperature saving box:
Step 1: Choose the right storage temperature
There are corresponding preservation temperatures according to different preservation time. For example, the plasma can be saved for 24 hours at 4 ° C environment, and can be saved for one year below -20 ° C; tuna can be saved for 1-2 weeks in -20 ° C environment, and can be saved for 1-2 months in -40 ° C environment. It can be stored in -60 ° C for 6-12 months.
Ultra-low temperature saving box is generally divided into -25 degrees saving box (-10 ℃ ~ -25 ℃ adjustable), -40 degrees saving box (-15 ℃ ~ -45 ℃ adjustable),-60 degrees saving box (-25 ℃ ~ -65 ° C can be adjusted) and -80 degrees saving box (-40 ° C ~ -86 ° C can be adjusted). The user can choose the corresponding saving box according to the actual temperature. It should be noted that the adjustable temperature produced by different manufacturers is different. For example, the refrigerator produced by our company can be adjusted at 15 ° C ~ -45 ° C, and the other brands are mostly 15 ° C ~ -40 ° C. Tone.
It should be noted that how much the best setting temperature of the saving box is the best degree (such as -25 degrees saving box is best set at -25 degrees, -40 degrees saving box is best set at -40 degrees), set at the corresponding temperature of the corresponding temperature Generally, the temperature fluctuations in the box will stabilize within ± 3 ° C. If the temperature deviates from the best setting temperature, the temperature fluctuations will become large. This factor should be considered when reinstalling a storage box in the multi -temperature area.
Step 2: Choose to save the box style
The low -temperature preservation box is generally divided into two types: vertical side door and horizontal opening door.
The preferred vertical side opening situation: There are multiple categories of storage items that need to be classified and stored, and the area of the storage items requires limited area.
The situation of the first -choice of horizontal opening door: frequently open doors, storage of similar items, and large places are large enough. The horizontal type is relatively cheap.
Step 3: Select Volume
According to the volume of the storage items, choose the appropriate volume. If there are about 80 liters of volume, try to choose a saved box of more than 100 liters as much as possible. The maximum placement of the preservation box should not exceed 80%of the volume in the box, otherwise the air in the box will be weakly different from the flow. It will affect the cooling speed and saving effect of the saving box.
Step 4: Select size
If the size of the items is too large, the internal size should be selected according to the three -sided size of the item.
According to the door width of the placement location and the size of the outside box, the large -sized refrigerator needs to be talked about the customers in advance, so as to avoid the problem of being inaccessible and unable to enter the door.
other factors:
Other factors that should also be considered are: if it is corroded (such as seawater, chemicals), you can choose the saving box of 304 stainless steel inner lined; keep the load of the box; noise, some customers may buy the refrigerator and put it at home, and use it at home. Because a low -temperature refrigerator is generally installed with a cooling fan, the noise will be much larger than the home refrigerator, and it is also a problem that must be considered; the thickness of the insulation layer of the box (the thicker the cold and the colder the cold effect, the lower the energy consumption), our company’s products are luxurious The thickness of the type of thermal insulation is 150mm; the power consumption of the box, the price of the box, and so on.
Post time: Jan-31-2023