CN220728607U - Low-temperature cold accumulation air cooling heat preservation cabinet - Google Patents
Low-temperature cold accumulation air cooling heat preservation cabinet Download PDFInfo
- Publication number
- CN220728607U CN220728607U CN202322265175.2U CN202322265175U CN220728607U CN 220728607 U CN220728607 U CN 220728607U CN 202322265175 U CN202322265175 U CN 202322265175U CN 220728607 U CN220728607 U CN 220728607U
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- evaporator
- air
- direct
- electromagnetic valve
- cabinet
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- 238000001816 cooling Methods 0.000 title claims abstract description 39
- 238000004321 preservation Methods 0.000 title claims abstract description 24
- 238000009825 accumulation Methods 0.000 title claims abstract description 15
- 239000011232 storage material Substances 0.000 claims abstract description 23
- 238000001035 drying Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 238000010257 thawing Methods 0.000 abstract description 7
- 239000003507 refrigerant Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012472 biological sample Substances 0.000 description 1
- 239000010836 blood and blood product Substances 0.000 description 1
- 229940125691 blood product Drugs 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229960005486 vaccine Drugs 0.000 description 1
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model discloses a low-temperature cold accumulation air cooling heat preservation cabinet, which comprises a cabinet body and a refrigerating system arranged in the cabinet body, wherein the cabinet body is provided with a cooling device; the refrigerating system comprises a compressor, a condenser, a throttling element, a three-way electromagnetic valve, an air cooling evaporator and a direct cooling evaporator; the outlet of the compressor is connected with the inlet of the condenser, the outlet of the condenser is connected with the inlet of the throttling element, and the outlet of the throttling element is connected with the first interface of the three-way electromagnetic valve; the second interface of the three-way electromagnetic valve is connected with the inlet of the air-cooled evaporator, and the third interface of the three-way electromagnetic valve is connected with the inlet of the direct-cooled evaporator; the air-cooled evaporator is arranged in the air duct of the cabinet body; the side wall of the direct cooling evaporator facing to the outer wall of the cabinet body inner container is fixedly provided with a phase change cold storage material. According to the direct-cooling evaporator and the arrangement of the phase-change cold storage material on the direct-cooling evaporator, the temperature in the cabinet is kept by the phase-change cold storage material which stores the cold completely absorbing heat during defrosting, so that the temperature in the cabinet is prevented from greatly fluctuating.
Description
Technical Field
The utility model belongs to the technical field of heat preservation cabinets, and particularly relates to a low-temperature cold accumulation air cooling heat preservation cabinet.
Background
At present, biological samples, medicines, blood products, vaccines, detection reagents and other biomedical samples have higher requirements on temperature and temperature stability due to sample characteristics. Therefore, the heat preservation cabinet needs to be stored in the low-temperature heat preservation cabinet for a long time to maintain the safety and the effectiveness.
In the existing low-temperature heat preservation cabinet, the air-cooled evaporator and the fan in the air duct are used for maintaining the low temperature in the cabinet body, when the air-cooled evaporator needs defrosting, the refrigerating system is suspended to work, and the temperature in the cabinet body rises to generate larger fluctuation, so that the stored samples in the cabinet body are adversely affected.
Based on the above problem, the application provides a low temperature cold-storage forced air cooling heat preservation cabinet, through the setting of direct-cooling evaporimeter and last phase transition cold-storage material, when defrosting, the temperature keeps the cabinet through the complete phase transition cold-storage material absorption heat of cold-storage to prevent that the cabinet temperature from appearing great fluctuation.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a low-temperature cold accumulation air cooling heat preservation cabinet.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a low-temperature cold accumulation air cooling heat preservation cabinet comprises a cabinet body and a refrigerating system arranged in the cabinet body;
the refrigerating system comprises a compressor, a condenser, a throttling element, a three-way electromagnetic valve, an air-cooled evaporator and a direct-cooled evaporator;
the outlet of the compressor is connected with the inlet of the condenser in a pipeline way, the outlet of the condenser is connected with the inlet of the throttling element in a pipeline way, and the outlet of the throttling element is connected with the first interface of the three-way electromagnetic valve in a pipeline way;
the second interface of the three-way electromagnetic valve is connected with the inlet of the air-cooled evaporator through a pipeline, and the third interface of the three-way electromagnetic valve is connected with the inlet of the direct-cooled evaporator through a pipeline; the outlet of the air-cooled evaporator and the outlet of the direct-cooled evaporator are connected with the inlet of the compressor through pipelines;
the air-cooled evaporator is arranged in an air duct of the cabinet body;
the direct cooling evaporator is fixedly arranged on the back side of the outer wall of the inner container of the cabinet body;
the phase change cold storage materials are fixedly arranged on the side wall of the direct cooling evaporator facing the outer wall of the cabinet body inner container and the side wall facing away from the outer wall of the cabinet body inner container.
Preferably, a temperature sensor is arranged in the phase change cold storage material.
Preferably, the temperature sensor is in communication connection with a controller, and the controller is connected with a three-way electromagnetic valve.
Preferably, the phase change cold storage material is in adhesive connection with the direct-cooling evaporator.
Preferably, the throttling element is a capillary tube.
Preferably, a drying filter is arranged on a pipeline between the outlet of the capillary tube and the first interface of the three-way electromagnetic valve.
The beneficial effects of the utility model are as follows:
according to the low-temperature cold storage air-cooled heat preservation cabinet, the direct-cooling evaporator and the phase-change cold storage material on the direct-cooling evaporator are arranged, and the temperature in the cabinet is kept by the phase-change cold storage material with complete cold storage absorbing heat during defrosting, so that the temperature in the cabinet is prevented from greatly fluctuating.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application.
FIG. 1 is a schematic diagram of the connection of a refrigeration system in a low-temperature cold accumulation air cooling heat preservation cabinet of the utility model;
FIG. 2 is a schematic diagram of the locations between the direct-cooled evaporator, the phase-change cold storage material and the cabinet in the present utility model;
wherein:
the device comprises a compressor 1, a condenser 2, a capillary tube 3, a drying filter 4, a three-way electromagnetic valve 5, a 6-air-cooled evaporator 7-direct-cooled evaporator 8-phase change cold storage material 9-heat insulation layer 10-inner container 11-cabinet 12-fan 13-controller 14-temperature sensor.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
In the present utility model, the terms such as "upper", "lower", "bottom", "top", and the like refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely relational terms used for convenience in describing the structural relationships of the various components or elements of the present utility model, and are not meant to designate any one component or element of the present utility model, and are not to be construed as limiting the present utility model.
In the present utility model, terms such as "connected," "connected," and the like are to be construed broadly and mean either fixedly connected or integrally connected or detachably connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the present utility model can be determined according to circumstances by a person skilled in the relevant art or the art, and is not to be construed as limiting the present utility model.
The utility model will be further described with reference to the drawings and examples.
As shown in fig. 1, a low-temperature cold accumulation and air cooling heat preservation cabinet comprises a cabinet body 11 and a refrigerating system arranged in the cabinet body;
the refrigerating system comprises a compressor 1, a condenser 2, a throttling element, a three-way electromagnetic valve 5, an air-cooled evaporator 6 and a direct-cooled evaporator 7;
the outlet of the compressor 1 is connected with the inlet of the condenser 2 in a pipeline way, the outlet of the condenser 2 is connected with the inlet of the throttling element in a pipeline way, and the outlet of the throttling element is connected with the first interface of the three-way electromagnetic valve 5 in a pipeline way;
the second interface of the three-way electromagnetic valve 5 is connected with the inlet of the air-cooled evaporator 6 in a pipeline manner, and the third interface of the three-way electromagnetic valve 5 is connected with the inlet of the direct-cooled evaporator 7 in a pipeline manner; the outlet of the air-cooled evaporator 6 and the outlet of the direct-cooled evaporator 7 are connected with the inlet of the compressor 1 through pipelines;
the air-cooled evaporator 6 is arranged in an air duct of the cabinet 11; wherein, a fan 12 is also arranged in the air duct of the cabinet 11;
as shown in fig. 2, the direct cooling evaporator 7 is fixedly arranged on the back side of the outer wall of the cabinet liner 10;
the phase change cold storage materials 8 are fixedly arranged on the side wall facing the outer wall of the cabinet inner container 10 in the direct cooling evaporator 7 and the side wall facing away from the outer wall of the cabinet inner container 10.
In this application, foaming forms heat preservation 9 between the outer wall of cabinet 11 and the inner bag 10, and direct cooling evaporimeter 7 and the phase transition cold-storage material 8 of installing on it all inlay in heat preservation 9.
Preferably, a temperature sensor 14 is disposed in the phase change cold storage material 8.
Preferably, the temperature sensor 14 is in communication with a controller 13, and the controller 13 is connected with the three-way electromagnetic valve 5.
Preferably, the phase change cold storage material 8 is adhered to the direct cooling evaporator 7.
Preferably, the restriction is a capillary tube 3.
Preferably, a drier-filter 4 is arranged on a pipeline between the outlet of the capillary tube 3 and the first interface of the three-way electromagnetic valve 5.
The low-temperature cold accumulation air cooling heat preservation cabinet comprises the following specific embodiments:
when the heat preservation cabinet operates, the first interface and the third interface of the three-way electromagnetic valve 5 are communicated, and the refrigerant enters the direct-cooling evaporator 7, and the specific process is as follows: the refrigerant is compressed into high-temperature steam by the compressor 1, becomes high-temperature medium-pressure liquid after passing through the condenser 2, becomes low-temperature low-pressure liquid after passing through the capillary tube 3 and the dry filter 4, absorbs a large amount of heat in the direct-cooling evaporator 7, boils and vaporizes to realize refrigeration, so that the phase-change cold storage materials 8 at the two sides of the direct-cooling evaporator start to store cold, and meanwhile, the refrigerant after absorbing the heat enters the compressor 1 again for circulation; in the process, the temperature sensor 14 detects the temperature in the phase-change cold storage material 8, and when the temperature reaches the set temperature, the controller 13 controls the first interface and the second interface of the three-way electromagnetic valve 5 to be communicated, so that the refrigerant enters the air-cooled evaporator 6.
The air-cooled evaporator 6 works, the refrigerant is compressed into high-temperature steam by the compressor 1, becomes high-temperature medium-pressure liquid after passing through the condenser 2, becomes low-temperature low-pressure liquid after passing through the capillary tube 3 and the dry filter 4, absorbs a large amount of heat in the direct-cooled evaporator 7 to boil and vaporize, realizes refrigeration, and sends the cold air into the cabinet body through the air duct by the fan 12, so that the temperature in the cabinet body is balanced and stable.
When defrosting is required, the refrigerating system stops running and generates heat, and the phase-change cold storage material 8 which is completely stored in the cold storage can absorb the heat so as to maintain the temperature in the cabinet. And after defrosting is finished, the first interface and the third interface of the three-way electromagnetic valve 5 are controlled to be communicated again, so that the phase-change cold storage material 8 stores cold. The whole system is cycled back and forth, and the temperature is always controlled to fluctuate within a very small range.
The low-temperature cold accumulation air-cooled heat preservation cabinet is characterized in that the direct-cooling evaporator 7 and the upper phase-change cold accumulation material 8 are arranged, and the temperature in the cabinet is kept by absorbing heat through the phase-change cold accumulation material with complete cold accumulation during defrosting, so that the temperature in the cabinet is prevented from larger fluctuation.
While the foregoing is directed to embodiments of the present utility model, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (6)
1. A low-temperature cold accumulation air cooling heat preservation cabinet comprises a cabinet body and a refrigerating system arranged in the cabinet body; it is characterized in that the method comprises the steps of,
the refrigerating system comprises a compressor, a condenser, a throttling element, a three-way electromagnetic valve, an air-cooled evaporator and a direct-cooled evaporator;
the outlet of the compressor is connected with the inlet of the condenser in a pipeline way, the outlet of the condenser is connected with the inlet of the throttling element in a pipeline way, and the outlet of the throttling element is connected with the first interface of the three-way electromagnetic valve in a pipeline way;
the second interface of the three-way electromagnetic valve is connected with the inlet of the air-cooled evaporator through a pipeline, and the third interface of the three-way electromagnetic valve is connected with the inlet of the direct-cooled evaporator through a pipeline; the outlet of the air-cooled evaporator and the outlet of the direct-cooled evaporator are connected with the inlet of the compressor through pipelines;
the air-cooled evaporator is arranged in an air duct of the cabinet body;
the direct cooling evaporator is fixedly arranged on the back side of the outer wall of the inner container of the cabinet body;
the phase change cold storage materials are fixedly arranged on the side wall of the direct cooling evaporator facing the outer wall of the cabinet body inner container and the side wall facing away from the outer wall of the cabinet body inner container.
2. The low temperature cool storage and air cooling heat preservation cabinet according to claim 1, wherein a temperature sensor is arranged in the phase change cool storage material.
3. The low temperature cold accumulation air cooling heat preservation cabinet according to claim 2, wherein the temperature sensor is in communication connection with a controller, and the controller is connected with a three-way electromagnetic valve.
4. The low temperature cool storage and air cooling heat preservation cabinet according to claim 1, wherein the phase change cool storage material is in adhesive connection with the direct cooling evaporator.
5. The low temperature cool storage air cooling thermal insulation cabinet of claim 1, wherein the throttling element is a capillary tube.
6. The low temperature cool storage and air cooling heat preservation cabinet according to claim 5, wherein a drying filter is arranged on a pipeline between the outlet of the capillary tube and the first interface of the three-way electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322265175.2U CN220728607U (en) | 2023-08-23 | 2023-08-23 | Low-temperature cold accumulation air cooling heat preservation cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322265175.2U CN220728607U (en) | 2023-08-23 | 2023-08-23 | Low-temperature cold accumulation air cooling heat preservation cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220728607U true CN220728607U (en) | 2024-04-05 |
Family
ID=90496712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322265175.2U Active CN220728607U (en) | 2023-08-23 | 2023-08-23 | Low-temperature cold accumulation air cooling heat preservation cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220728607U (en) |
-
2023
- 2023-08-23 CN CN202322265175.2U patent/CN220728607U/en active Active
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