How to choose the size of the freeze dryer?

How to choose the size of the freeze dryer? The choice of the area size of the freeze dryer can also be said to be the choice of the capacity size
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The capacity of the freeze dryer should be selected according to the scale of production or the needs of the experiment
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Freeze dryers are generally divided into three series: experimental series, pilot-scale and production series, and each series has models of different sizes
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So how to choose the size of the freeze dryer? Follow me below to find out
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Users should decide which type of freeze dryer to choose according to their own production volume, and certain data can be determined by calculation
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For example, each batch of products with a liquid volume of 200 kilograms (liters) needs to be freeze-dried, and a freeze dryer with a condenser freezing volume of not less than 200 kilograms (liters) should be selected first
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Then calculate the loading area of ​​the freeze-drying box board, and the calculation of the area is related to the loading method of the product
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Using the plate method and the bottle method are not necessarily the same area
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The plate packing method makes full use of the area of ​​the board, while the bottle packing method requires a larger board area because the gap between the bottles is not fully utilized
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Tuofen freeze dryer is your good choice! If the tray loading method is used, and the loading height of each tray is 20 mm, the plate area required for 200 kilograms (liters) of liquid is: A(area, m2)=V(volume, m3)/H(height, m ) Therefore: A=0.
2m3/0.
02m=10m2 That is, the freeze dryer with a plate area of ​​10m2 needs to be selected, and then check whether the freezing capacity of the condenser of the 10m2 freeze dryer can withstand 200 kilograms (liters).
If it meets the requirements, you can choose this type of freeze dryer
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First, calculate the total amount of bottles required for each batch: N (number of bottles) = V (total filling volume ml)/V (filling volume per bottle ml) Therefore: N=200000ml/5ml=40000 pieces.
Then calculate the amount of the freezer Plate area: A(area m2)=a(area occupied by each bottle m2)*N(total number of bottles) Therefore A=(0.
022*0.
022)*40000=19.
36m2 Since the round bottles are staggered and squeezed together, the actual The footprint can be reduced by roughly multiplying by a factor of 0.
9
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Namely: 19.
36*0.
9=17.
4m2 The freeze dryer with the plate area of ​​17.
4m2 can be selected
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 　　Then check whether the freezing amount of the condenser of the 17.
4 square meter freeze dryer meets the requirements.
If it meets the requirements, you can select it
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 　　Sometimes the calculated area is not the same as the actual model, so it is not possible to choose a close model
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The distance between the layers of the freeze-drying box is also determined according to the plate or bottle
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The height of the plate is generally 40-50mm, plus a gap of 50mm.
The optional bottle of 100mm needs to be determined according to the height of the bottle, which is roughly the height of the bottle plus a gap of 30mm
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 　　Sometimes the freeze dryer needs to use containers of different heights at different times, you can choose a freeze dryer with adjustable plate distance
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This freeze-drying machine can easily combine the two layers into one layer, so that the distance between the layers is doubled
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 　　The above is the relevant content on how to choose the size of the freeze dryer.
I believe that everyone has a corresponding understanding of this after reading, and I hope it can help everyone
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