Temperature-sensing mattress system for verifying shelf temperature distribution evenness of freeze drier
A temperature distribution and freeze dryer technology, applied in the field of temperature measurement pad systems, can solve the problems of uneven layout, inconvenient work, time-consuming and labor-intensive, etc., and achieve the effects of easy-to-obtain production materials, simple processing, and convenient use.
Inactive Publication Date: 2008-03-26
ZHEJIANG UNIV
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Problems solved by technology
Therefore, the installation of the probe and the removal of the probe after the verification is completed become a time-consuming and labor-intensive work, and the measurement of each shelf of each freeze-dryer needs to be repeated, which brings great inconvenience to the work. inconvenient
Secondly, when arranging each thermocouple temperature measuring probe, artificial factors will be introduced to a certain extent, which will easily cause the location of the arrangement to be uneven and the contact is not good enough, causing errors and affecting the verification of the uniformity of temperature distribution
Method used
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[0015] As shown in Figures 1 and 2, the temperature measuring pad system for verifying the temperature distribution uniformity of the freeze dryer shelf has a temperature measuring pad 1, and the temperature measuring pad has a polytetrafluoroethylene layer 6 and a thin sponge layer 7 upper and lower layers. The temperature measuring pad is uniformly covered with small holes 2, and is threaded with copper-constantan thermocouples 9, and the temperature measuring end 5 of the copper-constantan thermocouple is arranged under the thin sponge layer 7, and each thermocouple temperature measuring end is equipped with a small magnet8.
[0016] As shown in Figures 3, 4, and 5, in the thermocouple wiring diagram of the temperature measuring pad of the present invention, the wirings of 9 (1), 9 (2), and 9 (3) are the same, and the wiring on the entire temperature measuring pad is axisymmetric. . The copper-constantan thermocouple 9 is uniformly drawn out through the outlet 3 of the tem...
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A temperature measuring pad for verifying temperature distribution uniformity of freeze dryer shelf consists of Teflon layer, top thin sponge layer and bottom thin sponge layer being stuck together by epoxy, pinholes being distributed on pad intensively and copper-constantan thermocouple on pinholes .It is featured as setting temperature measuring end of said thermocouple under thin sponge layer with a small magnetic iron, outputting thermocouple from two sides of said pad and connecting it to aviation socket of vacuum box on freeze dryer then to connection wire and junction box through aviation socket .
Description
technical field [0001] The invention relates to a temperature measuring pad system for verifying the temperature distribution uniformity of a freeze dryer shelf. The temperature measurement is carried out by arranging the thermocouple evenly on the temperature measuring pad, and the use of the temperature acquisition system is used to realize the automation of the multi-point temperature distribution measurement. Background technique [0002] With the wide application of freeze-drying technology in many fields of the national economy such as biopharmaceuticals, food, specimen making, and geological surveys, the production and market of freeze-drying machines are also expanding and improving. [0003] The maximum allowable temperature difference of all points on the surface of the shelf at the same time is defined as the allowable unevenness of the shelf temperature, generally ±1°C. It is a comprehensive reflection of the flow rate of the solution pump, the uniformity of the...
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IPC IPC(8): G01K3/06G01K7/04G01K1/14G01K13/00F26B5/06G01K7/02G01M99/00
Inventor 陈光明范菊莉张绍志
Owner ZHEJIANG UNIV