Freeze dryer plate layer

Abstract

The utility model discloses a freeze dryer plate layer which comprises a first plate layer, a second plate layer and a plurality of isolating bars. The first plate layer and the second plate layer are fixedly connected to form a cavity; a plurality of isolating bars are fixedly arranged on the second plate layer and divide the cavity into a plurality of channels; the channels are sequentially connected end to end to form an S shape. The plate layers of the freeze dryer are good in flatness, a freeze-dried sample is uniform in heat conduction in the sublimation process, the drying speed is not deviated, the heat absorption feedback of the freeze-dried sample is fast, the sublimation drying time of the whole freeze-drying process is shortened, and the freeze dryer is more energy-saving and environment-friendly.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of freeze dryer, especially relates to a freeze dryer board layer. BACKGROUND

[0002] At present, the board layer of most freeze dryers is spliced and welded together by lower bottom plate, solid partition strip and upper cover plate, and full welding is carried out around, so that the heat medium circulates in the board layer, because the partition strip needs to be welded, so the thickness of the partition strip is large, if full welding cannot be realized when the partition strip is welded, and there is a leakage point, the medium will flow out directly from the crack when circulating, and directly flows in a straight line from the oil inlet to the oil outlet of the board layer. And the deformation amount of the board layer welded in this way is large, and a large amount of manual work is needed for shaping, polishing and polishing in the later period to obtain a finished product, and because the partition strip of the board layer is too thick, the samples are randomly placed on the board layer during freeze drying, the biological medicine enterprise usually adopts 12mm or 16mm specification of the freeze-dried sample in the vial, the contact surface of the vial bottom may be placed in the medium flow area, and the other may be placed on the partition strip, a temperature difference of 3-5 degrees is formed in the two areas, and the temperature difference is larger after conduction to the sample, so that the sample is not uniformly heated in the sublimation process, the drying speed deviates, the difficulty of freeze drying process control is increased, and the uniformity of freeze-dried sample batches is poor. CONTENT

[0003] According to the utility model embodiment, a freeze dryer board layer is provided, which comprises: a first board layer, a second board layer and a plurality of partition strips;

[0004] The first board layer and the second board layer are fixedly connected to form a cavity;

[0005] The second board layer is fixedly provided with a plurality of partition strips, and the plurality of partition strips divide the cavity into a plurality of channels;

[0006] The plurality of channels are sequentially connected in a head-to-tail manner and form an S shape.

[0007] Further, the second board layer and the plurality of partition strips are integrally formed.

[0008] Further, the thickness of the plurality of partition strips is 3mm.

[0009] Further, a plurality of grooves are arranged on the first board layer, the positions of the plurality of grooves correspond to the positions of the plurality of partition strips on the second board layer one by one, and the plurality of partition strips can be inserted into the plurality of grooves respectively.

[0010] Further, the depth of the plurality of grooves is 1mm.

[0011] Further, the utility model also comprises: an inlet and an outlet, the inlet and the outlet are connected with two ends of the S-shaped channel respectively.

[0012] The freeze-drying machine plate layer according to the embodiment of the present application has good flatness, the heat conduction of the freeze-dried sample is uniform during sublimation, the drying speed does not deviate, the heat absorption feedback of the freeze-dried sample is fast, the sublimation drying time of the whole freeze-drying process is shortened, and the freeze-drying machine plate layer is more energy-saving and environment-friendly.

[0013] It is to be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further explanation of the subject technology claimed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 FIG. 1 is a structural schematic view of a first plate layer of a freeze-drying machine plate layer according to an embodiment of the present application;

[0015] Fig. 2 FIG. 2 is a structural schematic view of a second plate layer of a freeze-drying machine plate layer according to an embodiment of the present application;

[0016] Fig. 3 FIG. 3 is a structural schematic view of a freeze-drying machine plate layer according to an embodiment of the present application. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings, and the present application will be further described.

[0018] Firstly, the freeze-drying machine plate layer according to the embodiment of the present application will be described in combination with Figs. 1-3 The application scenario of the freeze-drying machine plate layer according to the embodiment of the present application is very wide.

[0019] As shown in Figs. 1-3 , the freeze-drying machine plate layer according to the embodiment of the present application has a first plate layer 1, a second plate layer 2 and a plurality of isolation strips 3.

[0020] Specifically, as shown in Fig. 3 , the first plate layer 1 is fixedly connected with the second plate layer 2 to form a cavity; as shown in Fig. 2 , the second plate layer 2 is fixedly provided with a plurality of isolation strips 3, and the plurality of isolation strips 3 separate the cavity into a plurality of channels; the plurality of channels are sequentially connected in a head-to-tail manner and present an S shape, the flow distance of the heat conduction medium is lengthened, the heat conduction efficiency is improved, the heat absorption feedback of the freeze-dried sample is fast, the sublimation drying time of the whole freeze-drying process is shortened, and the freeze-drying machine plate layer is more energy-saving and environment-friendly.

[0021] Further, the second plate layer 2 and the plurality of isolation strips 3 are integrally formed, the conventional isolation strips 3 are all welded on the second plate layer, the deformation amount of the plate layer after welding is very large, and a large amount of manual work is required for shaping, polishing and polishing in the later stage to obtain a finished product, the second plate layer 2 and the plurality of isolation strips 3 are integrally formed in the embodiment, so that the flatness of the freeze-drying machine plate layer is good, the heat conduction rate is fast, and the uniformity deviation of the plate layer is small.

[0022] Furthermore, the thickness of several isolation strips 3 is 3mm. Traditionally, isolation strips 3 are welded to the second plate layer 2, limiting their thickness to around 10mm. During freeze-drying, samples are randomly placed on the plates; some are placed in the medium flow area, while others are placed on the isolation strips 3. This creates a 3-5 degree temperature difference between the two areas, which widens after being conducted to the samples. This results in uneven heat conduction during sublimation, leading to deviations in drying speed, increased difficulty in controlling the freeze-drying process, and poor batch uniformity of freeze-dried samples. In this embodiment, the thickness of the isolation strips 3 is set to 3mm, a reduction from the traditional 10mm. This ensures uniform heat conduction during sublimation even when samples are placed on the isolation strips 3, resulting in better batch uniformity of freeze-dried samples.

[0023] Furthermore, such as Fig. 1 As shown, the first plate layer 1 is provided with a number of grooves 11, and the positions of the grooves 11 correspond one-to-one with the positions of the isolation strips 3 on the second plate layer 2. The isolation strips 3 can be inserted into the grooves 11 respectively.

[0024] Furthermore, the depth of each of the grooves 11 is 1 mm.

[0025] Furthermore, such as Fig. 2 , 3 As shown, it also includes an inlet 5 and an outlet 4, which are respectively connected to the two ends of the S-shaped channel. In use, the heat transfer medium flows in from the inlet 5, flows along the S-shaped channel, and flows out from the outlet 4.

[0026] Above, refer to Figs. 1-3 The freeze dryer according to the present invention has good plate flatness, uniform heat conduction during the sublimation process of the freeze-dried sample, no deviation in drying speed, and fast heat absorption feedback of the freeze-dried sample, which shortens the sublimation drying time of the entire freeze-drying process and is more energy-saving and environmentally friendly.

[0027] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.

[0028] Although the content of the utility model has been introduced in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the utility model. After reading the above content, various modifications and substitutions of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be limited by the attached claims.

Claims

1. A freeze dryer plate, characterized in that, It includes: a first layer, a second layer, and several isolation strips; The first plate and the second plate are fixedly connected to form a cavity; The second plate is fixedly provided with the plurality of isolation strips, which divide the cavity into a plurality of channels; The aforementioned channels are connected end to end in sequence, forming an S-shape; The second plate layer and the plurality of isolation strips are integrally formed; The thickness of each of the aforementioned isolation strips is 3mm; The first plate layer is provided with a plurality of grooves, the positions of which correspond one-to-one with the positions of the plurality of isolation strips on the second plate layer, and the plurality of isolation strips can be respectively inserted into the plurality of grooves.

2. The freeze dryer plate layer as described in claim 1, characterized in that, The depth of each of the grooves is 1 mm.

3. The freeze dryer plate layer as described in claim 1, characterized in that, It also includes an inlet and an outlet, the inlet and the outlet being connected to both ends of the S-shaped channel, respectively.

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