Brazing plate layer of freeze dryer
A technology for machine brazing and welding of plates, applied in the directions of drying, drying solid materials, drying solid materials without heating, etc., can solve the problems of poor quality stability of plates, increase the production cycle of plates, waste materials, etc., and achieve improved uniformity. The effect of reducing the consumption, reducing the cost of
Inactive Publication Date: 2010-07-21
上海东富龙制药设备制造有限公司
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Problems solved by technology
This results in a large thermal mass for the slab, which wastes a lot of energy during prefreezing or sublimation drying
At the same time, in order to reduce the impact of large welding deformation on the flatness of the board, it is necessary to carry out preliminary shaping after the welding of the board is completed, and then the whole board is processed by the machining center, and the upper and lower panels of the board are machined. Processing, the cutting amount of each surface is about 1mm, which not only wastes material, but also increases the cycle of ply production
Whether it is hook welding or plug welding, it is manual welding. The welding quality directly depends on the level of the welder and the seriousness of the work attitude. The stability of the quality of the board is relatively poor.
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[0014] like figure 1 As shown, it is a schematic diagram of the structure of the brazing plate layer of the freeze dryer, and the brazing plate layer of the freeze dryer includes a square frame composed of left and right square steel 1 and front and rear square steel 2, such as figure 2 shown, for figure 1 In the cross-sectional view of A-A, panels 5 are arranged on the upper and lower sides of the square frame, ribs 3 are arranged in a staggered manner between the panels 5 , and the ribs 3 and the panels 5 are connected by solder 4 . The ribs 3 are rectangular steel pipes, which not only greatly reduce the amount of materials used and cost, but also improve the heat transfer efficiency of the refrigerant inside the slab, improve the uniformity of the temperature of the slab, and improve the overall performance of the freeze dryer. With obvious help. The brazing filler metal 4 can be a BNI2 nickel-based solder sheet produced by Shanghai Dahua New Brazing Material Factory. ...
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The invention relates to a brazing plate layer of a freeze dryer, which is characterized in that the brazing plate layer comprises a square frame consisting of a left square steel, a right square steel, a front square steel and a back square steel, wherein panels are arranged on the upper side and the lower side of the square frame, staggered ribs are arranged between the panels, the ribs and the panels are connected through brazing materials, and the ribs are rectangular steel pipes. The ribs adopt the design of the rectangular pipes and abandon the design of adopting the solid square steels as the ribs for the traditional plate layer, thereby not only greatly reducing the material consumption and reducing the cost, but also improving the heat transfer efficiency of a cold medium in the plate layer, improving the temperature uniformity of the plate layer and being conductive to improving the overall performance of the freeze dryer.
Description
technical field [0001] The invention relates to a brazing plate layer of a freeze dryer, in particular to a brazing plate layer of a vacuum freeze dryer, and belongs to the technical field of vacuum freeze dryers. Background technique [0002] The freeze-dryer plate is located in the freeze-drying box, and its function is to place freeze-dried products (such as biological drugs, or vials containing biological drugs) for freeze-drying. The decks are housed in a vertically liftable mechanism for corking vials. [0003] Another function of the plate layer is to perform heat exchange between the refrigerant (ethylene glycol, alcohol, silicone oil, etc.) and the freeze-dried product. During the pre-freezing process, the moisture in the freeze-dried product is first frozen. After pre-freezing, the freeze-drying box is vacuumed to sublimate the water in the freeze-dried product. To complete this process, an external cooling system is used to provide cooling to the refrigerant an...
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IPC IPC(8): F26B5/06F26B25/00
Inventor 郑效东
Owner 上海东富龙制药设备制造有限公司