Experimental Lyophilization Dryer
The composition of the experimental lyophilization dryer
The freeze-drying machine is composed of refrigeration system, vacuum system, heating system and electrical instrument control system. The main components are drying oven, condenser, refrigerating unit, vacuum pump, heating/cooling device, etc. Its working principle is to be dried items first frozen to the triple point temperature below, and then in the vacuum conditions of the solid water in the items (ice) directly sublimated into water vapor, from the items excluded, so that the items dry. After the pre-treatment, the material is sent to the quick-freezing warehouse for freezing, and then sent to the drying warehouse for sublimation and dehydration, and then packaged in the post-treatment workshop. The vacuum system establishes low pressure conditions for the sublimation drying chamber, the heating system provides sublimation latent heat for the material, and the refrigeration system provides the required cooling capacity for the cold trap and drying chamber.
1. The use of freezing oil in the Experimental Lyophilization Dryer
Generally speaking, the refrigeration system should be replaced after 100 hours of operation, and the frozen oil should be replaced after 10,000 ~ 12000h of operation again. When oil is changed, as long as the oil level is exposed to 1/4 of the mirror, it must not be added, because it is easy to cause oil strikes. In general, special refrigerating oil should be used in accordance with the requirements specified by the manufacturer.
2. Replacement of frozen oil in the lyophilizer
(1) closed compressor suction valve, manual reset hydraulic safety controller, start the compressor, refrigerant in the compressor into the system, with the pressure inside the compressor is balanced with the atmospheric pressure, the closed compressor (cut off power supply), closed compressor exhaust valve, compressor will be recovered internal pressure at this time, open the joint on the exhaust valve, put a net to save gas.
(2) screw down the oil plug from the oil outlet of the compressor, take out the oil filter and release the dirty oil.
(3) wash the metal powder on the oil plug of the oil filter with gasoline, dry it and reload it and tighten the oil plug.
(4) the upper left wire plug of the compressor oil mirror is screwed down, and the filling pipe is connected with the oil barrel, and the compressor is vacuumed, and the frozen oil is automatically sucked into the compressor by the effect of atmospheric pressure.
(5) oil change as long as 1/4 of the compressor oil can be exposed as the oil mirror, and then screw on the wire plug.
(6) the air in the compressor is extracted with a vacuum pump.
(7) Open the suction and exhaust stop valve of the compressor, and the compressor can be put into operation.
Parameter:
KFD-1 | KFD-2 | KFD-5 | KFD-6 | KFD-8 | |
Capacity (Kg/Batch) | 10 | 20 | 50 | 60 | 80 |
Shelf Area (㎡) | 1.1 | 2 | 5 | 6 | 8 |
Shelf Size (Mm) | 500*400 | 700*500 | 800*895 | 950*800 | 1000*800 |
Shelf Quantity (Layer) | 5+1 | 6+1 | 7+1 | 8+1 | 10+1 |
Max Catch Water（Kg） | 15 | 30 | 75 | 90 | 120 |
Ultimate Vacuum | 1 | 1 | 1 | 2 | 2 |
Electricity（Kw） | 12 | 16 | 22 | 34 | 34 |
Size（Mm） | 2200*1000*2000 | 2500*1000*2300 | 2200*1200*2400 | 3500*1400*2430 | 3500*1400*2430 |
Weight（Kg） | 1500 | 2000 | 2500 | 3000 | 3500 |
Pre-sale:
As soon as we get your inquiry, we will always reply to your email on time and try our best to recommend you the most suitable freeze dryer. Detailed tech-info will also be provided for you.
After-sale:
We will keep in touch with you, to make sure every parts of the freeze dryer work well. One year warranty, free online service.
Hot Tags: Experimental Lyophilization Dryer, China, factory, suppliers, manufacturers, customized, price, made in China, small lab freezing dryer, freeze dryer diy, freeze dryer home, freeze dryer for home use, benchtop freeze dryer, freeze dryer small
You Might Also Like
Send Inquiry