CN219103493U - Vacuum freeze drying equipment - Google Patents
Vacuum freeze drying equipment Download PDFInfo
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- CN219103493U CN219103493U CN202223606338.0U CN202223606338U CN219103493U CN 219103493 U CN219103493 U CN 219103493U CN 202223606338 U CN202223606338 U CN 202223606338U CN 219103493 U CN219103493 U CN 219103493U
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- pipeline
- cold trap
- liquid tank
- defrosting
- heating liquid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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Abstract
The application relates to a vacuum freeze-drying apparatus comprising: a freeze-drying bin; the cold trap bin is communicated with the freeze-drying bin, and a cold trap pipeline is arranged in the cold trap bin; the cooling liquid tank is connected with two ends of the cold trap pipeline through a first pipeline and a second pipeline to form a loop, and the first pipeline and the second pipeline are respectively provided with a first valve; the defrosting device comprises a heating liquid tank and two defrosting pipelines, wherein the heating liquid tank is connected with two ends of the cold trap pipeline through two defrosting pipelines to form a loop, and the two defrosting pipelines are respectively provided with a second valve. This application is through setting up defrosting device, when needs defrosting cold trap pipeline, makes the heating liquid in the heating liquid jar through defrosting pipeline input to cold trap pipeline in, heats cold trap pipeline through the heating liquid to make cold trap pipeline surface ice crystal melt fast, thereby reach the purpose of quick defrosting, and the heating liquid circulates in cold trap pipeline, and the heat loss is lower, and the energy consumption is lower.
Description
Technical Field
The application relates to the technical field of cooling equipment, in particular to vacuum freeze drying equipment.
Background
At present, in the vacuum freeze drying process, a vacuum unit vacuumizes the whole freeze drying bin, so that the three-phase point of water is reduced, and the water in the material of the freeze drying bin is more volatile; in order to accelerate the volatilization speed of moisture in the material, a heating liquid at a certain temperature is led into the radiation plate to heat the material; the vacuum system sucks the volatilized vapor gas from the freeze-drying bin to the cold trap bin, and instantly captures the vapor to form solid ice crystals to be stored on the surface of a cold trap pipeline through the cold trap at the low temperature of minus 40 ℃.
In the related art, after each batch of freeze-dried materials are dried, defrosting treatment is needed for the cold trap, and as the heat insulation materials are arranged around the cold trap bin, if the cold trap bin naturally heats up to defrost, the time is often longer, so that evaporating frost is often adopted, steam is generated by utilizing an evaporating frost system, and the whole cold trap bin is heated to defrost quickly.
However, the steam generated by the steam defrosting system heats the whole cold trap bin, and the ice crystal on the surface of the cold trap pipeline melts slowly due to the large space in the cold trap bin, so that the steam loss is large and the energy loss is high.
Disclosure of Invention
The embodiment of the application provides vacuum freeze drying equipment to solve among the correlation technique when the steam defrosting system is defrosting cold trap pipeline, cold trap pipeline surface ice crystal melts slower, and steam loss is big, the high problem of energy loss.
The technical scheme adopted by the application is as follows:
a vacuum freeze-drying apparatus comprising:
a freeze-drying bin;
the cold trap bin is communicated with the freeze-drying bin, and a cold trap pipeline is arranged in the cold trap bin;
the cooling liquid tank is connected with two ends of the cold trap pipeline through a first pipeline and a second pipeline to form a loop, and the first pipeline and the second pipeline are respectively provided with a first valve;
the defrosting device comprises a heating liquid tank and two defrosting pipelines, wherein the heating liquid tank is connected with two ends of the cold trap pipeline through two defrosting pipelines to form a loop, and the two defrosting pipelines are respectively provided with a second valve.
In some embodiments, a plurality of radiation plates are arranged in the freeze drying bin, a third pipeline and a fourth pipeline are further connected to the heating liquid tank, one end of the third pipeline is connected with the heating liquid tank, the other end of the third pipeline is connected with a liquid inlet of the radiation plate, one end of the fourth pipeline is connected with the heating liquid tank, and the other end of the fourth pipeline is connected with a liquid outlet of the radiation plate.
In some embodiments, one ends of the two defrosting pipelines, which are far away from the heating liquid tank, are respectively connected to the first pipeline and the second pipeline, and the connection point is positioned between the first valve and the end part of the cold trap pipeline.
In some embodiments, the connection points of the two defrosting pipelines and the heating liquid tank are respectively positioned at the top and the bottom of the heating liquid tank.
In some embodiments, a circulating pump is arranged on the defrosting pipeline, wherein the defrosting pipeline is positioned at the bottom of the heating liquid tank, and the connecting point of the circulating pump and the heating liquid tank is positioned at the bottom of the heating liquid tank.
In some embodiments, the circulation pump on the defrosting conduit is located between the second valve and the cold trap conduit.
In some embodiments, the connection point of the first pipeline and the cooling liquid tank is positioned at the top of the cooling liquid tank, and the connection point of the second pipeline and the cooling liquid tank is positioned at the bottom of the cooling liquid tank.
In some embodiments, a circulation pump is disposed on the second pipe.
In some embodiments, a circulation pump on the second conduit is located between the cold trap conduit and the first valve.
In some embodiments, the heating fluid and the cooling fluid are the same composition.
The beneficial effects that technical scheme that this application provided brought include:
embodiments of the present application provide a vacuum freeze drying apparatus that is provided with defrosting
When the cold trap pipeline performs normal cooling operation, the heating liquid is stored in the heating liquid tank, and the two second valves are closed; the two first valves are opened, and the cooling liquid is output from the cooling liquid tank
The water vapor enters the cold trap bin, and the cold trap pipeline can catch the water vapor to form solid ice crystals; when the cold trap pipeline is needed
When defrosting is carried out, the cooling liquid is fully injected into the cooling liquid tank, the two first valves are closed, the two second valves are opened, and the heating liquid in the heating liquid tank is input into the cold trap pipe through the defrosting pipeline
In the way, the cold trap pipeline is heated by the heating liquid, so that ice crystals on the surface of the cold trap pipeline are melted rapidly, the purpose of rapid defrosting is achieved, the heating liquid circulates in the cold trap pipeline, the heat loss is low, and the energy consumption is low.
Drawings
5 to more clearly illustrate the technical solutions in the embodiments of the present application, the following will apply to the embodiments
The drawings that are required for the description are briefly introduced and it is apparent that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a schematic structural diagram of a vacuum freeze-drying apparatus according to an embodiment of the present application.
In figure 0: 1. a cold trap bin; 2. a cold trap conduit; 3. a cooling liquid tank; 31. a first pipe;
32. a second pipe; 4. a first valve; 5. a heating liquid tank; 6. a defrosting pipeline; 7. a second valve; 8. a third conduit; 9. a fourth conduit; 10. a circulation pump; 11. a freeze-drying bin; 12. a radiation plate; 13. a vacuum unit; 14. a vacuum pipe.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
The embodiment of the application provides vacuum freeze drying equipment, which can solve the problems that when the cold trap pipeline 2 is defrosted by the existing steam defrosting system, ice crystals on the surface of the cold trap pipeline 2 are melted slowly, the steam loss is large and the energy loss is high.
Referring to fig. 1, a vacuum freeze-drying device provided in an embodiment of the present application includes a freeze-drying bin 11, a cold trap bin 1, a cooling liquid tank 3 and a defrosting device, where the cold trap bin 1 is communicated with the freeze-drying bin 11, and a cold trap pipeline 2 is provided in the cold trap bin 1; the cooling liquid tank 3 is arranged outside the cold trap bin 1, is connected with two ends of the cold trap pipeline 2 through a first pipeline 31 and a second pipeline 32 to form a loop, and the first pipeline 31 and the second pipeline 32 are respectively provided with a first valve 4; the defrosting device comprises a heating liquid tank 5 and two defrosting pipelines 6, wherein the heating liquid tank 5 is connected with two ends of the cold trap pipeline 2 through the two defrosting pipelines 6 to form a loop, and the two defrosting pipelines 6 are provided with second valves 7.
Referring to fig. 1, a cold trap chamber 1 is communicated with a freeze-drying chamber 11, a vacuum unit 13 is arranged outside the cold trap chamber 1, the vacuum unit 13 is connected to the cold trap chamber 1 through a vacuum pipeline 14 so as to extract air in the cold trap chamber 1, and water vapor in the freeze-drying chamber 11 enters the cold trap chamber 1 under the action of pressure and is captured and condensed into ice crystals by the cold trap pipeline 2.
Referring to fig. 1, specifically, a cold trap pipe 2 is spirally wound in a cold trap chamber 1, two ends of the cold trap pipe 2 penetrate through a side wall of the cold trap chamber 1 and then are respectively connected with a first pipe 31 and a second pipe 32, and the first pipe 31 and the second pipe 32 are communicated with a cooling liquid tank 3 arranged outside the cold trap chamber 1. In this embodiment, the connection point of the first pipe 31 and the cooling liquid tank 3 is located at the top of the cooling liquid tank 3, and the connection point of the second pipe 32 and the cooling liquid tank 3 is located at the bottom of the cooling liquid tank 3; a circulation pump 10 is provided on the second pipe 32, and the circulation pump 10 on the second pipe 32 is provided between the first valve 4 and the cold trap pipe 2 to pump out the coolant in the coolant tank 3 and circulate the coolant in the second pipe 32, the cold trap pipe 2, the first pipe 31, and the coolant tank 3. When the cold trap pipe 2 is not in operation, the first valve 4 on the first pipe 31 can be closed, the cooling liquid in the cold trap pipe 2 is completely returned to the cooling liquid tank 3 through the circulating pump 10, then the first valve 4 on the second pipe 32 is closed, the cooling liquid is kept in the cooling liquid tank 3, and the cooling liquid is not filled in the cold trap pipe 2, so that the defrosting treatment is carried out on the cold trap pipe 2.
Further, as shown in fig. 1, the heating liquid tank 5 is arranged outside the cold trap chamber 1, and is connected with two ends of the cold trap pipeline 2 through two defrosting pipelines 6 to form a loop, and the two defrosting pipelines 6 are provided with second valves 7.
Referring to fig. 1, specifically, one ends of the two defrosting pipelines 6, which are far away from the heating liquid tank 5, are respectively connected to the first pipeline 31 and the second pipeline 32, and the connection point is located between the first valve 4 and the end part of the cold trap pipeline 2, so that when the two first valves 4 are closed, after the two second valves 7 are opened, the defrosting pipelines 6 and the cold trap pipeline 2 can form a loop; in this embodiment, the connection points of the two defrosting pipelines 6 and the heating liquid tank 5 are respectively located at the top and the bottom of the heating liquid tank 5, and a circulating pump 10 is arranged on the defrosting pipeline 6 located at the bottom of the heating liquid tank 5 at the connection point of the heating liquid tank 5.
Referring to fig. 1, when the cold trap pipeline 2 performs a freezing operation, a cooling liquid flows through the cold trap pipeline 2, and at this time, the second valves 7 on the two defrosting pipelines 6 are closed, and all the heating liquid is stored in the heating liquid tank 5; when defrosting treatment is required to be carried out on the cold trap pipeline 2, after all cooling liquid is recycled into the cooling liquid tank 3, the two first valves 4 are closed, the two second valves 7 are opened, the circulating pump 10 on the defrosting pipeline 6 is started, heating liquid in the heating liquid tank 5 is pumped out through the defrosting pipeline 6 and pumped into the cold trap pipeline 2, and the cold trap pipeline 2 is heated through the heating liquid, so that ice crystals on the surface of the cold trap pipeline 2 are melted rapidly, and the purpose of defrosting rapidly is achieved. In this embodiment, the circulation pump 10 on the defrosting pipe 6 is located between the second valve 7 and the cold trap pipe 2, so that after defrosting is completed, the second valve 7 on the defrosting pipe 6 where the circulation pump 10 is located is closed, and the heating liquid in the defrosting pipe 6 and the heating liquid in the cold trap pipe 2 can be pumped into the heating liquid tank 5 by the circulation pump 10, so that the heating liquid is completely stored in the heating liquid tank 5, and then the two second valves 7 are closed, the defrosting of the cold trap pipe 2 is completed, and the next stage of freezing work can be performed.
Further, as shown in fig. 1, in order to increase the drying speed of the material, a plurality of radiation plates 12 are disposed in the freeze drying bin 11, and in this embodiment, the radiation plates 12 are sequentially disposed at intervals in the vertical direction; the heating liquid tank 5 is also connected with a third pipeline 8 and a fourth pipeline 9, one end of the third pipeline 8 is connected with the heating liquid tank 5, the other end of the third pipeline 8 is connected with a liquid inlet of the radiation plate 12 to supply heating liquid to the radiation plate 12, one end of the fourth pipeline 9 is connected with the heating liquid tank 5, the other end of the fourth pipeline 9 is connected with a liquid outlet of the radiation plate 12, and the third pipeline 8, the radiation plate 12, the fourth pipeline 9 and the heating liquid tank 5 form a loop so as to heat materials through circulation of the heating liquid in the radiation plate 12 to improve the drying speed of the materials. In this embodiment, the connection point of the third pipe 8 and the heating liquid tank 5 is located at the bottom of the heating liquid tank 5, the connection point of the fourth pipe 9 and the heating liquid tank 5 is located at the top of the heating liquid tank 5, and a circulation pump 10 is provided on the third pipe 8 to circulate the heating liquid in the radiation plate 12, and the circulation pump 10 can recover the heating liquid in the radiation plate 12 into the heating liquid tank 5 when the freeze-drying process is not performed.
Further, the heating liquid and the cooling liquid have the same composition.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It should be noted that in this application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A vacuum freeze-drying apparatus, characterized by comprising:
a freeze-drying bin (11);
the cold trap bin (1) is communicated with the freeze-drying bin (11), and a cold trap pipeline (2) is arranged in the Leng Jingcang (1);
the cooling liquid tank (3) is connected with two ends of the cold trap pipeline (2) through a first pipeline (31) and a second pipeline (32) to form a loop, and the first pipeline (31) and the second pipeline (32) are respectively provided with a first valve (4);
the defrosting device comprises a heating liquid tank (5) and two defrosting pipelines (6), wherein the heating liquid tank (5) is connected with two ends of the cold trap pipeline (2) through the two defrosting pipelines (6) to form a loop, and the two defrosting pipelines (6) are provided with second valves (7).
2. The vacuum freeze-drying apparatus according to claim 1, wherein: be equipped with a plurality of radiant panels (12) in freeze-drying storehouse (11), still be connected with third pipeline (8) and fourth pipeline (9) on heating fluid reservoir (5), third pipeline (8) one end is connected heating fluid reservoir (5), the other end the inlet of radiant panel (12) is connected, fourth pipeline (9) one end is connected heating fluid reservoir (5), the other end with the liquid outlet of radiant panel (12) is connected.
3. The vacuum freeze-drying apparatus according to claim 1, wherein: one end, far away from the heating liquid tank (5), of the two defrosting pipelines (6) is connected to the first pipeline (31) and the second pipeline (32) respectively, and the connecting point is located between the first valve (4) and the end part of the cold trap pipeline (2).
4. The vacuum freeze-drying apparatus according to claim 1, wherein: the connection points of the two defrosting pipelines (6) and the heating liquid tank (5) are respectively positioned at the top and the bottom of the heating liquid tank (5).
5. The vacuum freeze-drying apparatus according to claim 4, wherein: the connection point with the heating liquid tank (5) is positioned on the defrosting pipeline (6) at the bottom of the heating liquid tank (5) and is provided with a circulating pump (10).
6. The vacuum freeze-drying apparatus according to claim 5, wherein: the circulating pump (10) on the defrosting pipeline (6) is positioned between the second valve (7) and the cold trap pipeline (2).
7. The vacuum freeze-drying apparatus according to claim 1, wherein: the connection point of the first pipeline (31) and the cooling liquid tank (3) is positioned at the top of the cooling liquid tank (3), and the connection point of the second pipeline (32) and the cooling liquid tank (3) is positioned at the bottom of the cooling liquid tank (3).
8. The vacuum freeze-drying apparatus according to claim 5, wherein: the second pipeline (32) is provided with a circulating pump (10).
9. The vacuum freeze-drying apparatus according to claim 8, wherein: a circulation pump (10) on the second pipe (32) is located between the cold trap pipe (2) and the first valve (4).
10. The vacuum freeze-drying apparatus according to claim 1, wherein: the heating liquid and the cooling liquid have the same components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223606338.0U CN219103493U (en) | 2022-12-29 | 2022-12-29 | Vacuum freeze drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223606338.0U CN219103493U (en) | 2022-12-29 | 2022-12-29 | Vacuum freeze drying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219103493U true CN219103493U (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223606338.0U Active CN219103493U (en) | 2022-12-29 | 2022-12-29 | Vacuum freeze drying equipment |
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| CN (1) | CN219103493U (en) |
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- 2022-12-29 CN CN202223606338.0U patent/CN219103493U/en active Active
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