Modular Vent
A ventilation device, gas technology, applied in mixers with rotary stirring devices, biochemical instruments, transportation and packaging, etc., can solve the problems of ineffectiveness, expensive sterilization procedures, troublesome, etc., to reduce complexity, reduce mold cost, The effect of promoting proper growth
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example 1
[0059] A series of K L A Test is operated in a 1000L vessel mounted with a 13 "round impeller, baffle and suitable sensor to establish relationships between the area of the gas permeable material in the modular bubble mixer and the expected gas transfer efficiency. For these Test, impeller RPM at 60 rpm, 10 w / m 3 The power input is kept constant. in figure 1 Modular flying bubble mixer in all four locations using Tyvek ® 1059B as a gas permeable material and uses air flow rate from 5 lpm to 20 lpm (from 0.005 to 0.020 min) -1 The air flow rate (VVM)) runs three repetition tests under each condition. The full-size bubble mixer is also tested. Using an analog medium, it consists of water, Prangnik (0.2%), 1X PBS and 50 ppm foamed. The result is shown Figure 7 in. Data indicates that higher air flow rate leads to higher K L a value.
[0060] Can pass K L The A / area / VVM compares the area of each modular segment of the bubble stirre to determine the gas transfer efficiency. F...
example 2
[0064] The modular bubble stirrer according to the embodiments disclosed herein allows more than one type of gas permeable material to be used in the system. Example 1 Prove that high K L a value, where Tyvek ® The material only occupies two modular segments in the four modular segments of the bubble mixer. For example, a gas permeable material for the remaining two modular segments can be selected to produce a ratio than using Tyvek. ® Materials generated with larger bubbles, such as Porex ® POR97619 ("PE-10"), POR4920 ("PE-40") and POR 4903 ("PE-90"), all of which are made of polyethylene.
[0065] The three types of gas permeable materials were evaluated in one and two segments from 5 lpm to 50 lpm (0.005 VVM to 0.05 VVM) in an air flow rate of 5 lpm to 50 lpm (0.005 VVM to 0.05 VVM), of which the impeller is evaluated in one and two segments of the bubbubble stirrer. RPM remains constant at 60 rpm. Summary Figure 11 in.
[0066] Generally, larger aperture size (PE-90) material...
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