CN205245685U - Vacuum freezing desiccator heat exchanger plate - Google Patents
Vacuum freezing desiccator heat exchanger plate Download PDFInfo
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- CN205245685U CN205245685U CN201521087838.5U CN201521087838U CN205245685U CN 205245685 U CN205245685 U CN 205245685U CN 201521087838 U CN201521087838 U CN 201521087838U CN 205245685 U CN205245685 U CN 205245685U
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- heat exchanger
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- exchanger plate
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- square steel
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Abstract
The utility model provides a vacuum freezing desiccator heat exchanger plate, include upper plate, hypoplastron, parting strip, front and back strip of paper used for sealing square steel and control the strip of paper used for sealing square steel, upper plate and hypoplastron be about, strip of paper used for sealing square steel company of welding mutually of around with strip of paper used for sealing square steel all, constitutes that be equipped with the silicon oil entry on hollow heat exchanger plate, this cavity heat exchanger plate and silicon oil exports, the parting strip constitutes the high temperature medium passageway in being fixed in the cavity heat exchanger plate in the cavity heat exchanger plate, the parting strip is thin wall side's pipe, brazing filler metal, as an organic whole with upper plate and hypoplastron welding with the vacuum brazing mode is connected to the parting strip. The utility model provides a vacuum freezing desiccator heat exchanger plate face distribution of temperature is even, and product life is longer, has reduced silicon oil leakage danger and has promoted product security nature.
Description
Technical field
The utility model relates to vacuum sealing technology field, relates in particular to a kind of vacuum freeze drier heat exchanger plate.
Background technology
The operation principle of vacuum freeze drier is first to allow product freeze, and then the suitable heat of sublimation is provided under vacuum environment, makes moisture content or solvent in frozen product change into water vapour or steam state steam, reaches the object of product dehydrate. Wherein, product to freeze be to carry out on the heat exchanger plate in drying box with sublimation process. Product generally adopts cillin bottle to load freeze-drying or two kinds of modes of tray loading freeze-drying, but no matter takes any mode, all requires temperature uniformity on the plate face of heat exchanger plate. Heat exchanger plate of the prior art adopts upper plate, lower plate, strip of paper used for sealing square steel and isolating bar to be configured for the medium channel of high/low temperature media flow in the inside of heat exchanger plate. Using 5 or 10cst silicone oil as high/low temperature medium, flow and realize heat transmission in heat exchanger plate inner loop. Wherein isolating bar adopts solid square steel, isolating bar welds by the form of plug welding mutually with upper plate, isolating bar welds by the mode of welding intermittence mutually with lower plate, there are some problems of the following stated in this technical scheme: first, on near the position near isolating bar, silicone oil is inhomogeneous to the heat transfer of upper plate, lower plate, causes the temperature on heat exchanger plate even not; Meanwhile, the welding manner difference in prior art between isolating bar and upper plate, lower plate, causes effectively eliminating thermal stress, causes using progressively distortion after certain hour; In addition, also exist pad too much, easily cause silicone oil to leak to the problem polluting on heat exchanger plate. Finally, adopt solid square steel as isolating bar, cause heat exchanger plate deadweight overweight, material cost is excessive. How effectively overcoming above-mentioned technical problem is the work that those skilled in the art need to carry out creative thinking.
Utility model content
The purpose of this utility model is to provide a kind of vacuum freeze drier heat exchanger plate, to overcome the existing the problems referred to above of prior art.
The technical scheme that the utility model adopts is as follows:
A kind of vacuum freeze drier heat exchanger plate, comprise upper plate, lower plate, isolating bar, front and back strip of paper used for sealing square steel and left and right strip of paper used for sealing square steel, described upper plate and lower plate are all mutually soldered with front and back strip of paper used for sealing square steel, left and right strip of paper used for sealing square steel, heat exchanger plate, this hollow heat exchanger plate of forming hollow are provided with silicone oil entrance and silicone oil outlet, described isolating bar is fixed in hollow heat exchanger plate, in hollow heat exchanger plate, forms medium channel; Described isolating bar is thin-walled square tube, and the pipe thickness of described thin-walled square tube is 1.5-2mm; Described isolating bar connects solder, is welded as a whole with vacuum brazing mode and upper plate and lower plate.
By adopting this technical scheme: utilize thin-walled square tube to substitute traditional solid square tube as isolating bar, thus, utilize the characteristic realization that thin-walled square tube tube wall is thin in the mode of vacuum brazing, the upper side of isolating bar and downside to be welded as a whole with upper plate and lower plate respectively. Thus, overcome the problem that in conventional art, isolating bar cannot be eliminated from the different thermal stress that cause of welding manner of upper plate, lower plate. Avoid occurring solder joint in upper plate and lower plate simultaneously, reduced silicone oil and leak into through solder joint the danger of heat exchanger plate plate face.
Preferably, in above-mentioned vacuum freeze drier heat exchanger plate: the conducting of described isolating bar both ends open.
By adopting this technical scheme: silicone oil will be entered and be flowed out by the other end by an end opening of isolating bar in the process of walking around isolating bar. Thus, make on the upper plate of heat exchanger plate and the plate face of lower plate near the temperature of isolating bar position consistently with the temperature of other positions, overcome in prior art the uniform not problem of temperature near isolating bar position on heat exchanger plate.
More preferably, in above-mentioned vacuum freeze drier heat exchanger plate: described isolating bar two ends are all provided with the pilot angle of 60 ~ 70 °.
Why adopt this technical scheme: be because descend very thickness of silicon oil viscosity in working order, pilot angle be set at isolating bar two ends and be conducive to silicone oil flowing in isolating bar inside.
Further preferably, in above-mentioned vacuum freeze drier heat exchanger plate: described solder adopts Ni-based amorphous sheet; Described upper plate and lower plate adopt 2B corrosion resistant plate. The thickness of described upper plate and lower plate is 3-4mm.
Further preferably, in above-mentioned vacuum freeze drier heat exchanger plate: described upper plate is all mutually soldered with the mode that front and back strip of paper used for sealing square steel, left and right strip of paper used for sealing square steel weld with TIG with lower plate.
Compared with prior art, the vacuum freeze drier heat exchanger plate that the utility model provides is simple in structure, is easy to preparation, and the uniformity of temperature profile on heat exchanger plate reduces the thermal stress improving product life-span, reduces silicone oil and leaks improving product security.
Brief description of the drawings
Fig. 1 is the plan structure schematic diagram of the heat exchanger plate of prior art;
Fig. 2 is the main TV structure schematic diagram of A-A section in Fig. 1;
Fig. 3 is the partial enlarged drawing in B region in Fig. 2;
Fig. 4 is the plan structure schematic diagram of the utility model embodiment 1;
Fig. 5 is the main TV structure schematic diagram of C-C section in Fig. 4;
Fig. 6 is the partial enlarged drawing in D region in Fig. 5.
Reference numeral and concrete component names corresponding relation are as follows:
1, upper plate; 2, lower plate; 3, isolating bar; 4, front and back strip of paper used for sealing square steel; 5, left and right strip of paper used for sealing square steel; 6, hollow heat exchanger plate; 61, silicone oil entrance; 62, silicone oil outlet; 63, medium channel; 7, solder; 8, solder joint.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is further described.
Embodiment 1 as Figure 4-Figure 6:
A kind of vacuum freeze drier heat exchanger plate, comprises upper plate 1, lower plate 2, isolating bar 3, front and back strip of paper used for sealing square steel 4, left and right strip of paper used for sealing square steel 5. Wherein, described upper plate 1 and lower plate 2 adopt 2B corrosion resistant plate, and the thickness of described upper plate 1 and lower plate 2 is 4mm. Upper plate 1 and lower plate 2 are mutually soldered with the mode of TIG welding and front and back strip of paper used for sealing square steel 4, left and right strip of paper used for sealing square steel 5, heat exchanger plate 6, this hollow heat exchanger plate 6 of forming a hollow are provided with silicone oil entrance 61 and silicone oil outlet 62, described isolating bar 3 is positioned at hollow heat exchanger plate 6, described isolating bar 3 is the thin-walled square tube of both ends open conducting, and its pipe thickness is 1.5mm; And the two ends of this thin-walled square tube are all provided with the oblique pilot angle of 60 °. Described isolating bar 3 connect Ni-based amorphous sheet as solder 7, with vacuum brazing mode and upper plate 1 and lower plate 2 is welded as a whole, at the interior formation medium channel 63 of hollow heat exchanger plate 6;
The vacuum freeze drying heat exchanger plate of contrast and prior art as Figure 1-3:
In existing vacuum freeze drier heat exchanger plate, its isolating bar 3 welds by the form of plug welding mutually with upper plate 1, and isolating bar 3 welds by the mode of welding intermittence mutually with lower plate 2. This welding manner causes occurring in upper plate 1 and lower plate 2 a lot of solder joints 8, and near the position near isolating bar 3, and silicone oil is inhomogeneous and cannot eliminate thermal stress to the heat transfer of upper plate 1, lower plate 2. And vacuum freeze drying heat exchanger plate in embodiment 1, its isolating bar 3 is welded as a whole with upper plate 1 and lower plate 2 respectively in vacuum brazing mode. Thereby eliminate thermal stress, avoided occurring solder joint 8 on the plate face of upper plate, lower plate. In isolating bar 3 practices, silicone oil is entered and is flowed out by the other end by an end opening of isolating bar 3 under the guiding of 60 ° of oblique pilot angles, has ensured on the upper plate 1 of heat exchanger plate and the plate face of lower plate 2 consistent with the temperature of other positions near the temperature of isolating bar 3 positions.
The above, only embodiment of the present utility model, the utility model is not limited to the restriction of above-described embodiment, and similar amendment, variation and replacement that all foundations technical spirit of the present utility model is done above-described embodiment, still belong in the scope of technical solutions of the utility model. Protection domain of the present utility model is only defined by claims.
Claims (6)
1. a vacuum freeze drier heat exchanger plate, comprise upper plate (1), lower plate (2), isolating bar (3), front and back strip of paper used for sealing square steel (4), left and right strip of paper used for sealing square steel (5), described upper plate (1) and lower plate (2) are all mutually soldered with front and back strip of paper used for sealing square steel (4), left and right strip of paper used for sealing square steel (5), heat exchanger plate (6), this hollow heat exchanger plate (6) of forming hollow are provided with silicone oil entrance (61) and silicone oil outlet (62), described isolating bar (3) is fixed in hollow heat exchanger plate (6), forms medium channel (63) in hollow heat exchanger plate (6); It is characterized in that: described isolating bar (3) is thin-walled square tube, and the pipe thickness of described thin-walled square tube is 1.5-2mm; Described isolating bar (3) connects solder (7), is welded as a whole with vacuum brazing mode and upper plate (1) and lower plate (2).
2. a kind of vacuum freeze drier heat exchanger plate as claimed in claim 1, is characterized in that: described isolating bar (3) both ends open conducting.
3. a kind of vacuum freeze drier heat exchanger plate as claimed in claim 2, is characterized in that: the isolating bar of telling (3) two ends be all provided with the pilot angle of 60 ~ 70 °.
4. a kind of vacuum freeze drier heat exchanger plate as claimed in claim 3, is characterized in that: described solder (7) adopts Ni-based amorphous sheet.
5. a kind of vacuum freeze drier heat exchanger plate as claimed in claim 4, is characterized in that: described upper plate (1) and lower plate (2) adopt 2B corrosion resistant plate, and the thickness of described upper plate (1) and lower plate (2) is 3-4mm.
6. a kind of vacuum freeze drier heat exchanger plate as claimed in claim 5, is characterized in that: described upper plate (1) and lower plate (2) are all mutually soldered in the mode of TIG welding with front and back strip of paper used for sealing square steel (4), left and right strip of paper used for sealing square steel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087838.5U CN205245685U (en) | 2015-12-24 | 2015-12-24 | Vacuum freezing desiccator heat exchanger plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087838.5U CN205245685U (en) | 2015-12-24 | 2015-12-24 | Vacuum freezing desiccator heat exchanger plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205245685U true CN205245685U (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521087838.5U Active CN205245685U (en) | 2015-12-24 | 2015-12-24 | Vacuum freezing desiccator heat exchanger plate |
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| CN (1) | CN205245685U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225470A (en) * | 2016-09-23 | 2016-12-14 | 成都九十度工业产品设计有限公司 | A kind of vacuum freeze drier heat exchanger plate |
| CN106323072A (en) * | 2016-09-23 | 2017-01-11 | 成都九十度工业产品设计有限公司 | Stain-resistant heat exchange board for vacuum freezing dryer |
| CN109813056A (en) * | 2019-03-06 | 2019-05-28 | 刘义 | Vacuum freeze drier plate layer and preparation method thereof |
-
2015
- 2015-12-24 CN CN201521087838.5U patent/CN205245685U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225470A (en) * | 2016-09-23 | 2016-12-14 | 成都九十度工业产品设计有限公司 | A kind of vacuum freeze drier heat exchanger plate |
| CN106323072A (en) * | 2016-09-23 | 2017-01-11 | 成都九十度工业产品设计有限公司 | Stain-resistant heat exchange board for vacuum freezing dryer |
| CN106323072B (en) * | 2016-09-23 | 2018-08-28 | 楚雄绿福鲜农业科技有限公司 | Vacuum freeze drier resistant heat exchanger plate |
| CN109813056A (en) * | 2019-03-06 | 2019-05-28 | 刘义 | Vacuum freeze drier plate layer and preparation method thereof |
| CN109813056B (en) * | 2019-03-06 | 2024-03-29 | 刘义 | Plate layer for vacuum freeze dryer and preparation method thereof |
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