Brazing sheet layer structure of freeze dryer
A layer structure and machine brazing technology, applied in dryers, welding equipment, drying rooms/containers, etc., can solve the problems of poor quality stability of the board, increase the production cycle of the board, waste materials, etc., to improve the uniformity, The effect of reducing dosage and cost
Inactive Publication Date: 2010-09-22
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.
Method used
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[0014] like figure 1 As shown, it is a schematic diagram of the brazing plate structure of the freeze dryer, and the brazing plate structure of the freeze dryer includes a square frame composed of left and right square steel 1 and front and rear square steel 2, as figure 2 shown, for figure 1 In the sectional view of A-A, panels 5 are provided on both sides of the square frame, ribs 3 are arranged in a staggered manner between panels 5 , and ribs 3 and panels 5 are connected by solder 4 . The rib 3 adopts I-shaped steel, which not only greatly reduces the amount of materials used, but also reduces the cost; it also improves the heat transfer efficiency of the refrigerant inside the slab, improves the uniformity of the slab temperature, and improves the overall performance of the freeze dryer. Improving has obviously helped. The brazing filler metal 4 can be a BNI2 nickel-based solder sheet produced by Shanghai Dahua New Brazing Materials Factory.
[0015] During manufactur...
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The invention relates to a brazing sheet layer structure of a freeze dryer, which is characterized by comprising a square frame which consists of a left square steel, a right square steel, a front square steel and a rear square steel, wherein both the upper and the lower sides of the square frame are provided with a panel, ribs which are alternatively lined up are arranged between the panels, the ribs are connected with the panel through a brazing filter material, and the rib is of an I-shaped steel. By abandoning the design of the traditional plate layer by adopting solid square steel as ribs, the brazing sheet layer structure adopts the I-shaped steel, so not only the consumption of the material is greatly reduced, and the cost is reduced; but also the heat conduction efficiency of the coolant inside the plate layer is improved, the homogeneity of the temperature of the plate layer is improved, and the integral performance of the freeze dryer is obviously improved.
Description
technical field [0001] The invention relates to a brazing plate structure of a freeze dryer, in particular to a brazing plate structure 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 refrig...
Claims
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Inventor郑效东
Owner上海东富龙制药设备制造有限公司