CN221099169U - Direct-cooling type freeze-drying chamber for freeze dryer - Google Patents
Direct-cooling type freeze-drying chamber for freeze dryer Download PDFInfo
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- CN221099169U CN221099169U CN202322614041.7U CN202322614041U CN221099169U CN 221099169 U CN221099169 U CN 221099169U CN 202322614041 U CN202322614041 U CN 202322614041U CN 221099169 U CN221099169 U CN 221099169U
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- Prior art keywords
- pipe
- shelf
- freeze
- back plate
- side wall
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- 238000004108 freeze drying Methods 0.000 title claims abstract description 37
- 238000001816 cooling Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000010992 reflux Methods 0.000 claims abstract description 9
- 239000000523 sample Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
The utility model relates to the technical field of freeze-drying equipment, in particular to a direct-cooling freeze-drying chamber for a freeze dryer. The device comprises a freeze-drying chamber and a shelf arranged on the inner wall of the freeze-drying chamber, wherein the freeze-drying chamber comprises a back plate and a side plate fixedly connected to the inner side wall of the back plate, the shelf is arranged on the inner side wall of the back plate, a split-flow main pipe and a return main pipe are arranged in the back plate, a split-flow branch pipe is connected to the pipe wall of the split-flow main pipe, and a return branch pipe is connected to the pipe wall of the return main pipe; the condensing pipe is arranged in the shelf, the input end of the condensing pipe is communicated with the shunt branch pipe, and the output end of the condensing pipe is communicated with the reflux branch pipe; the device has the advantages that the condensing pipe pipeline is buried in the shelf, the temperature is conducted to the shelf directly, the temperature can be conducted uniformly, the refrigerating speed of the freeze dryer is improved, and the working efficiency of the freeze dryer is further improved; and the antiskid material tray is prevented above the shelf, so that operators can conveniently take materials, and meanwhile, the inside of the freeze-drying chamber is kept clean.
Description
Technical Field
The utility model relates to the technical field of freeze-drying equipment, in particular to a direct-cooling freeze-drying chamber for a freeze dryer.
Background
The freeze drying is to cool and freeze the matter containing water in great amount into solid. And then, under the vacuum condition, the water vapor is sublimated directly from the solid, and the substance is left in the frozen ice frame, so that the dried product does not lose the original solid framework structure, the original form of the material is maintained, and the product has excellent rehydration.
In the prior art, the material can be placed on the shelf of the vacuum freeze dryer, and as the shelf is not in direct contact with the condensing tube on the vacuum freeze dryer, the temperature is uniformly transferred to the material for a long time, so that the vacuum freeze dryer is slow in refrigeration speed, the whole freeze-drying time is increased, and the freeze-drying efficiency is reduced.
Chinese patent CN202223553520.4 discloses a shelf of vacuum freeze dryer, publication No. CN219037550U, the shelf comprises a top plate and a bottom plate, a plate frame is arranged between the top plate and the bottom plate, the plate frame is fixedly connected with the top plate and the bottom plate, a plurality of support ribs are arranged in the plate frame, each support rib forms a serpentine cavity channel allowing heat-conducting medium to flow in the plate frame, a fixing plate is arranged at the joint of the support rib and the plate frame, and a triangular block for positioning the top plate and the bottom plate is arranged at one side of the fixing plate far from the plate frame. The triangle piece is installed in the junction of supporting rib and fixed plate for strengthen the working strength of supporting rib, the further stability that improves shelf overall structure of cooperation supporting rib. However, this shelf has some drawbacks: the shelf adopts liquid refrigerant to fill the inner cavity of the shelf, a large amount of refrigerant is needed, the filling amount of the refrigerant needs to be accurately controlled, and if the refrigerant is excessively filled, liquid impact phenomenon can occur when the compressor is started, and the compressor is damaged; and if the liquid refrigerant leaks, the liquid refrigerant can pollute materials.
Disclosure of utility model
In order to solve the problems in the prior art, the utility model provides the direct-cooling freeze-drying chamber for the freeze dryer, which is characterized in that a condensing pipe pipeline is buried in the shelf, so that the temperature of the shelf can be conducted directly, the temperature can be conducted uniformly, the refrigerating speed of the freeze dryer is improved, and the working efficiency of the freeze dryer is further improved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the direct-cooling type freeze-drying chamber for the freeze dryer comprises a freeze-drying chamber and a shelf arranged on the inner wall of the freeze-drying chamber, wherein the freeze-drying chamber comprises a back plate and a side plate fixedly connected to the inner side wall of the back plate, the shelf is arranged on the inner side wall of the back plate, a split-flow main pipe and a reflux main pipe are arranged in the back plate, a split-flow branch pipe is connected to the pipe wall of the split-flow main pipe, and a reflux branch pipe is connected to the pipe wall of the reflux main pipe; the condensing tube is arranged in the shelf, the input end of the condensing tube is communicated with the shunt branch pipe, and the output end of the condensing tube is communicated with the reflux branch pipe.
By adopting the structural design, the cooling pipe is arranged in the shelf, the compressor directly transmits the refrigerant to the shelf through the pipeline, the shelf is directly cooled, the shelf directly transmits the temperature to the material placed on the shelf, and the efficiency of transmitting the temperature of the material is improved.
Preferably, the connecting plate is fixedly connected to the outer side wall of the shelf, a through hole corresponding to the pipe diameter of the condenser pipe is formed in the connecting plate, the sealing gaskets are fixedly connected to the outer side wall of the connecting plate and the inner side wall of the back plate, and the mounting holes are formed in the outer side wall of the connecting plate and the inner side wall of the back plate.
By adopting the structural design, the shelf is quickly installed on the back plate through the installation holes on the connecting plate by using the bolts, and meanwhile, the condensing pipe is in sealing connection with the split branch pipe and the reflux branch pipe, so that the shelf is convenient to install and replace.
Preferably, the condensing tube is composed of a plurality of U-shaped pipelines connected end to end, the opening directions of two adjacent U-shaped pipelines are opposite, the input end of the U-shaped pipeline is communicated with the split branch pipe, and the output end of the U-shaped pipeline is communicated with the reflux branch pipe.
By adopting the structural design, the area of the condenser pipe distributed on the shelf is increased, so that the temperature of the shelf is conducted uniformly, and the good heat circulation on the shelf is ensured.
Preferably, a material tray is placed on the upper surface of the shelf, and anti-slip protrusions are arranged on the upper surface of the material tray.
By adopting the structural design, the material is prevented from directly contacting the shelf, the material tray is used, the material is ensured to be in good contact with the shelf, the material residues and the material are prevented from being adhered to the shelf, and the inside of the freeze-drying chamber is kept clean.
Preferably, a temperature sensing probe is arranged inside the shelf.
By adopting the structural design, the temperature sensing probe transmits the temperature inside the freeze-drying chamber to the control system in real time, so that operators can conveniently adjust the temperature inside the freeze-drying chamber at any time.
Compared with the prior art, the utility model has the beneficial effects that:
1) The condensing tube pipeline is buried inside the shelf, so that the temperature can be conducted uniformly by directly conducting the temperature to the shelf, the refrigerating speed of the freeze dryer is improved, and the working efficiency of the freeze dryer is further improved.
2) The antiskid material tray is prevented above the shelf, so that operators can conveniently take materials, and meanwhile, the inside of the freeze-drying chamber is kept clean.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the shelf of the present utility model;
FIG. 3 is a schematic cross-sectional view of the AA of FIG. 1 of the present utility model;
FIG. 4 is a schematic cross-sectional view of a back plate of the present utility model;
Detailed Description
Referring to fig. 1, 2, 3 and 4, the present utility model provides a technical solution: the direct-cooling type freeze-drying chamber for the freeze dryer comprises a freeze-drying chamber 3 and a shelf 4 arranged on the inner wall of the freeze-drying chamber 3, wherein the freeze-drying chamber 3 comprises a back plate 31 and a side plate 32 fixedly connected to the inner side wall of the back plate 31, the shelf 4 is detachably arranged on the inner side wall of the back plate 31, a split-flow main pipe 1 and a return-flow main pipe 2 are embedded in the back plate 31, a split-flow branch pipe 11 is connected to the pipe wall of the split-flow main pipe 1, and a return-flow branch pipe 21 is connected to the pipe wall of the return-flow main pipe 2; the condensing tube 5 is arranged in the shelf 4, the input end of the condensing tube 5 is communicated with the shunt branch pipe 11, and the output end of the condensing tube 5 is communicated with the reflux branch pipe 21.
The connecting plate 41 is welded on the outer side wall of the shelf 4, through holes corresponding to the pipe diameters of the condensation pipes 5 are formed in the connecting plate 41, sealing gaskets are fixedly connected and fixedly connected on the outer side wall of the connecting plate 41 and the inner side wall of the back plate 31, and mounting holes are formed in the outer side wall of the connecting plate 41 and the inner side wall of the back plate 31.
Referring to fig. 3, the condensation pipe 5 is formed by a plurality of U-shaped pipes connected end to end, the openings of two adjacent U-shaped pipes are opposite in direction, the input ends of the U-shaped pipes are connected with the branch pipes 11, and the output ends of the U-shaped pipes are connected with the return branch pipes 21.
The material tray 42 is placed on the upper surface of the shelf 4, anti-slip protrusions are arranged on the upper surface of the material tray 42, and a temperature sensing probe 43 is arranged inside the shelf 4.
When the device is used, an operator takes out the material tray 42, stacks materials on the material tray 42, then places the material tray 42 on the shelf 4, after the operator starts the freeze dryer, the compressor sends a refrigerant into the condensation pipe 5 in the shelf 4 through the refrigerant output connecting pipe 11, the refrigerant returns to the compressor from the refrigerant input connecting pipe 21, so that the temperature circulation of the refrigerant is realized, the temperature circulation on the shelf is realized, the temperature sensing probe 43 in the shelf 4 can feed back the temperature on the shelf 4 to the control system in real time, and the temperature change in the freeze drying chamber 3 is accurately controlled; and the shelf 4 is connected to the inner wall of the freeze-drying chamber 3 in a sealing way through the connecting plate 41, so that the shelf 4 is convenient to replace and install when damaged.
The structures, proportions, sizes, etc. shown in the drawings attached hereto are for illustration purposes only and are not intended to limit the scope of the utility model, which is defined by the claims, but rather by the claims. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
The utility model has been described above with reference to preferred embodiments, but the scope of the utility model is not limited thereto, and any and all technical solutions falling within the scope of the claims are within the scope of the utility model. Various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict.
Claims (5)
1. The utility model provides a freeze dryer is with direct cooling formula freeze dryer room, includes freeze dryer room (3), sets up shelf (4) on freeze dryer room (3) inner wall, its characterized in that: the freeze-drying chamber (3) comprises a back plate (31) and a side plate (32) fixedly connected to the inner side wall of the back plate (31), the shelf (4) is arranged on the inner side wall of the back plate (31), a split-flow main pipe (1) and a return-flow main pipe (2) are arranged in the back plate (31), a split-flow branch pipe (11) is connected to the pipe wall of the split-flow main pipe (1), and a return-flow branch pipe (21) is connected to the pipe wall of the return-flow main pipe (2); the cooling device is characterized in that a condensing pipe (5) is arranged in the shelf (4), the input end of the condensing pipe (5) is communicated with the diversion branch pipe (11), and the output end of the condensing pipe (5) is communicated with the backflow branch pipe (21).
2. A direct-cooled lyophilization chamber for a lyophilization machine according to claim 1, where: the novel condenser is characterized in that a connecting plate (41) is fixedly connected to the outer side wall of the shelf (4), a through hole corresponding to the pipe diameter of the condenser pipe (5) is formed in the connecting plate (41), sealing gaskets are fixedly connected to the outer side wall of the connecting plate (41) and the inner side wall of the back plate (31), and mounting holes are formed in the outer side wall of the connecting plate (41) and the inner side wall of the back plate (31).
3. A direct-cooled lyophilization chamber for a lyophilization machine according to any one of claims 1 or 2, where: the condensing tube (5) is composed of a plurality of U-shaped pipelines connected end to end, the opening directions of two adjacent U-shaped pipelines are opposite, the input end of the U-shaped pipeline is communicated with the split branch pipe (11), and the output end of the U-shaped pipeline is communicated with the reflux branch pipe (21).
4. A direct-cooled lyophilization chamber for a lyophilization machine according to claim 1, where: the material tray (42) is placed on the upper surface of the shelf (4), and anti-slip protrusions are arranged on the upper surface of the material tray (42).
5. A direct-cooled lyophilization chamber for a lyophilization machine according to claim 1, where: a temperature sensing probe (43) is arranged inside the shelf (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322614041.7U CN221099169U (en) | 2023-09-26 | 2023-09-26 | Direct-cooling type freeze-drying chamber for freeze dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322614041.7U CN221099169U (en) | 2023-09-26 | 2023-09-26 | Direct-cooling type freeze-drying chamber for freeze dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221099169U true CN221099169U (en) | 2024-06-07 |
Family
ID=91325941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322614041.7U Active CN221099169U (en) | 2023-09-26 | 2023-09-26 | Direct-cooling type freeze-drying chamber for freeze dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221099169U (en) |
-
2023
- 2023-09-26 CN CN202322614041.7U patent/CN221099169U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Building 101, Building 7, No. 6-3 Baishawan Road, Chengyang District, Qingdao City, Shandong Province, 266000 Patentee after: QINGDAO CREATRUST ELECTRONIC TECHNOLOGY CO.,LTD. Country or region after: China Address before: 266000 1st floor, No.5 factory building, No.106 Xiangyang Road, Chengyang District, Qingdao City, Shandong Province Patentee before: QINGDAO CREATRUST ELECTRONIC TECHNOLOGY CO.,LTD. Country or region before: China |
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| CP03 | Change of name, title or address |