CN101280997A - Slotted-plate layer for freeze-dry machine - Google Patents
Slotted-plate layer for freeze-dry machine Download PDFInfo
- Publication number
- CN101280997A CN101280997A CNA2008100377106A CN200810037710A CN101280997A CN 101280997 A CN101280997 A CN 101280997A CN A2008100377106 A CNA2008100377106 A CN A2008100377106A CN 200810037710 A CN200810037710 A CN 200810037710A CN 101280997 A CN101280997 A CN 101280997A
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- freeze
- panel
- flaggy
- slotted
- lower panel
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Abstract
This invention relates to a grooving ply for freeze dryer, comprising an outer frame strip, a connecting tube, a parting strip, a lower panel and an upper panel; at least two parting strips are mounted between the upper and lower panels in parallel; the outer frame strip is placed at the lower panel and the outer ring of the upper panel; the connecting tube is mounted between the lower panel and lower end of the upper panel, wherein groove joint is mounted at surface where the upper and lower panel contacts with cooling medium. This invention has advantage that the groove joint on the panel has effect of damaging the heat exchange boundary layer of cooling medium and ply, in order to enhance the heat exchange of cooling medium and ply and improve the efficiency of cooling and drying of the freeze dryer.
Description
Technical field
The present invention relates to a kind of slotted-plate layer for freeze-dry machine, relate in particular to a kind of flaggy that is applicable to frozen vacuum dryer, belong to the vacuum freeze drier technical field.
Background technology
The freeze dryer flaggy is positioned at freeze drying box, and its function is that the bottle of placing biologics for example or biologics being housed carries out freeze-drying.Flaggy is positioned in the vertical liftable mechanism and is used for bottle is carried out tamponade.
Another function of flaggy is to carry out the heat exchange of refrigerant (ethylene glycol, alcohol, silicone oil etc.) and freeze-drying prods.In the pre-freeze process, the moisture content in the freeze-drying prods is at first frozen.After pre-freeze was finished, freeze drying box was evacuated the moisture content that makes in the freeze-drying prods and is elevated.In order to finish this process, an external refrigeration system is used to provide cold to refrigerant and freeze-drying prods.The heat that provides sublimation process required is provided for electric heater.
Because freeze-drying process occurs in the vacuum environment, therefore the heat transmission that occurs between freeze-drying prods and the refrigerant is the heat conduction, the flaggy surface should smoothly as much as possible make heat conduction reduction as far as possible between flaggy and the freeze-drying prods, and excellent contact can improve the thermal conduction effect of freeze-drying prods and flaggy and refrigerant.
At present, the freeze dryer flaggy is made up of two panels, parting beads and the protection structure all around that is used to seal, solid parting bead is arranged in and is used to form the passage that refrigerant flows between two panels, and parting bead combine with flaggy a type is welded on respectively on two panels for parting bead is designed to the snap close form.Another kind of type is that parting bead at first is welded on the panel, and in the boring plug welding of the position of the corresponding parting bead of another panel, the crator that exceeds is by grinding and buffing then.
The shortcoming of above-mentioned two kinds of layer structures is to cause producing near pad thermal stress, in order to reduce this thermal stress, need to use thicker panel and solid parting bead, this makes flaggy have very big thermal mass, thereby in pre-freeze or lyophilization process, waste lot of energy, for this reason, the method that the vacuum brazing of the third type occurred.In the method, the ambrose alloy welding rod is placed between lower panel and parting bead and top panel and the parting bead, the assembly of this sandwich style is placed in the middle of two graphite felt, put it into then in the vacuum drying oven, temperature in the stove rises to the fusing point and the stainless crystallization temperature of ambrose alloy welding rod rapidly, under this temperature flaggy being carried out stress eliminates, then the temperature in the stove is cooled to about 200 degree rapidly, assembly quenches and cool to room temperature by air inlet, utilize solid parting bead will weld sealing all around at last, because vacuum brazing is adopted in welding, therefore can be made into hollow form in order to reduce the thermal inertia parting bead.The shortcoming of this method is that initial input is very high, and the size of flaggy also can be restricted.
More than three kinds processing flaggies methods application is all arranged in the manufacture process of freeze dryer flaggy at present, but above three kinds of methods all have a common shortcoming, promptly because the flaggy panel inner surface is that smooth flat causes the heat exchange of inner refrigerant and panel very poor, thereby influence the pre-freeze and the drying efficiency of freeze-drying prods, and need very big cold medium flux could guarantee the temperature homogeneity of flaggy.
Summary of the invention
The purpose of this invention is to provide a kind of heat exchange that strengthens refrigerant and flaggy, reduce the pre-freeze of freeze-drying prods and the slotted-plate layer for freeze-dry machine of drying time.
For realizing above purpose, technical scheme of the present invention provides a kind of slotted-plate layer for freeze-dry machine, comprise outer moulding, tube connector, parting bead, lower panel, top panel, at least two parting beads are located between lower panel and the top panel abreast, outer moulding is located at lower panel and top panel outer ring, tube connector is located at the import and export of flaggy, it is characterized in that, the surface that contacts with refrigerant of plate, top panel is provided with the line of rabbet joint below.
Compare with original layer structure, advantage of the present invention is to destroy the boundary layer of refrigerant and flaggy heat exchange, thereby strengthened the heat exchange of refrigerant and flaggy, the pre-freeze and the drying time of freeze-drying prods have been reduced, and the fluting flaggy has also improved the uniformity of flaggy Temperature Distribution, the freeze-drying effect that makes a collection of freeze-drying prods is near consistent, the product quality repeatability strengthens, the method manufacturing process that the present invention simultaneously proposes is simple, though increased certain processing cost, but the coefficient of heat transfer that can make refrigerant and flaggy is strengthened to more than 2-3 times, thereby improve the performance of freeze dryer, so the present invention has great practical value.
Description of drawings
Fig. 1 is a kind of slotted-plate layer for freeze-dry machine structural representation;
Fig. 2 is a slotted-plate layer cross section schematic diagram.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 1, 2, be a kind of slotted-plate layer for freeze-dry machine structural representation, described a kind of slotted-plate layer for freeze-dry machine is made up of outer moulding 1, tube connector 2, parting bead 4, fluting lower panel 5 and fluting top panel 6.
At first top panel 6 and lower panel 5 are rule according to slotting position.Then top panel 6 and lower panel 5 are placed on the processing line of rabbet joint 3 on the groover respectively, behind the fluting with parting bead 4 spot-welded on below on the plate 5, then outer moulding 1 is welded on the lower panel 5 according to the drawing position, the mode of top panel 6 punchings by plug welding is welded on the parting bead 4, at last top panel 6 and the sealing of lower panel 5 four edges are welded, the both sides, lower end take over 2 in succession.
The line of rabbet joint 3 has the effect that destroys refrigerant and flaggy heat exchanger boundary layer, thereby has strengthened the heat exchange of refrigerant and flaggy, has improved the cryodesiccated efficient of freeze dryer.
The present invention can be applicable to the flaggy of virtually any size size, and to existing three kinds of methods of processing flaggies are all suitable at present.
Claims (1)
1. slotted-plate layer for freeze-dry machine, comprise outer moulding (1), tube connector (2), parting bead (4), lower panel (5), top panel (6), at least two parting beads (4) are located between lower panel (5) and the top panel (6) abreast, outer moulding (1) is located at lower panel (5) and top panel (6) outer ring, tube connector (2) is located between lower panel (5) and top panel (6) lower end, it is characterized in that the surface that contacts with refrigerant of plate (5), top panel (6) is provided with the line of rabbet joint (3) below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100377106A CN101280997A (en) | 2008-05-20 | 2008-05-20 | Slotted-plate layer for freeze-dry machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100377106A CN101280997A (en) | 2008-05-20 | 2008-05-20 | Slotted-plate layer for freeze-dry machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101280997A true CN101280997A (en) | 2008-10-08 |
Family
ID=40013584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100377106A Pending CN101280997A (en) | 2008-05-20 | 2008-05-20 | Slotted-plate layer for freeze-dry machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101280997A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782310A (en) * | 2010-03-16 | 2010-07-21 | 上海东富龙制药设备制造有限公司 | Brazing plate layer of freeze dryer |
| CN101839621A (en) * | 2010-03-16 | 2010-09-22 | 上海东富龙制药设备制造有限公司 | Brazing sheet layer structure of freeze dryer |
-
2008
- 2008-05-20 CN CNA2008100377106A patent/CN101280997A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782310A (en) * | 2010-03-16 | 2010-07-21 | 上海东富龙制药设备制造有限公司 | Brazing plate layer of freeze dryer |
| CN101839621A (en) * | 2010-03-16 | 2010-09-22 | 上海东富龙制药设备制造有限公司 | Brazing sheet layer structure of freeze dryer |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081008 |