CN219264687U - Open-type fresh meat cabinet with hot air defrosting function - Google Patents
Open-type fresh meat cabinet with hot air defrosting function Download PDFInfo
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- CN219264687U CN219264687U CN202320555162.6U CN202320555162U CN219264687U CN 219264687 U CN219264687 U CN 219264687U CN 202320555162 U CN202320555162 U CN 202320555162U CN 219264687 U CN219264687 U CN 219264687U
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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 utility model discloses an open-type fresh meat cabinet for hot gas defrosting, which relates to the technical field of open-type fresh meat cabinets and comprises a compressor, wherein an air outlet end of the compressor is connected with an air inlet end of the condenser through a first pipeline, the condenser is connected with a capillary through a second pipeline, the capillary is connected with an evaporator through a third pipeline, and an air outlet end of the evaporator is connected with the air inlet end of the compressor through a fourth pipeline; the device also comprises a fifth pipeline, wherein an electromagnetic valve is arranged on the fifth pipeline and is electrically connected with the controller. After the refrigerating cycle of the fresh meat cabinet reaches the set time, defrosting cycle is started, the controller controls the electromagnetic valve to be opened, one path of high-temperature gas exhausted by the compressor enters the evaporator through the fifth pipeline, the other path of high-temperature gas enters the condenser to be condensed, the high-temperature gas enters the evaporator after passing through the capillary tube, the two paths of high-temperature gas enter the evaporator to be balanced, the temperature of the evaporator is increased, the frost layer is melted, the problem of large temperature fluctuation in the fresh meat cabinet during defrosting can be avoided, and deterioration of meat products is avoided.
Description
Technical Field
The utility model relates to the technical field of open-type fresh meat cabinets, in particular to an open-type fresh meat cabinet capable of defrosting by hot air.
Background
The open-type fresh meat cabinet is a cabinet body for storing fresh meat products, is widely applied to places such as hotels, supermarkets and the like, has low refrigeration temperature and is easy to frost an evaporator. In the prior art, two defrosting modes of natural defrosting and electric heating defrosting are adopted to defrost the evaporator. However, the natural defrosting time is long, incomplete defrosting is easy to occur, and frost blockage is caused; the electric heating defrosting time is relatively shortened, the defrosting is thorough, but the heating temperature makes the temperature in the cabinet higher. Both defrosting modes can lead to larger temperature fluctuation of meat products stored in the cabinet during defrosting.
Disclosure of Invention
Aiming at the defects, the utility model aims to provide an open fresh meat cabinet with hot air defrosting, and aims to solve the technical problem that the temperature fluctuation of meat products stored in the fresh meat cabinet in the prior art is large during defrosting.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
the open fresh meat cabinet comprises a compressor, wherein an air outlet end of the compressor is connected with an air inlet end of the condenser through a first pipeline, a liquid outlet end of the condenser is connected with a liquid inlet end of a capillary through a second pipeline, a liquid outlet end of the capillary is connected with a liquid inlet end of an evaporator through a third pipeline, and an air outlet end of the evaporator is connected with an air inlet end of the compressor through a fourth pipeline; the device also comprises a fifth pipeline which is communicated with the first pipeline and the third pipeline, wherein an electromagnetic valve for controlling the opening and closing of the fifth pipeline is arranged on the fifth pipeline, and the electromagnetic valve is electrically connected with the controller.
By adopting the structure, after the refrigerating cycle of the fresh meat cabinet reaches the set time, defrosting cycle is started, the controller controls the electromagnetic valve to be opened, high-temperature gas exhausted by the compressor is divided into two paths, one path of gas enters the evaporator through the fifth pipeline, the other path of gas enters the evaporator through the capillary after entering the condenser, the two paths of gas enter the evaporator to be balanced, the temperature of the evaporator is increased, and the frost layer is melted. After defrosting circulation reaches the set time, the controller controls the electromagnetic valve to be closed, the refrigeration circulation is started, the circulation process is repeated, the fresh meat cabinet is refrigerated and defrosted, the problem that the temperature in the fresh meat cabinet rises suddenly due to the fact that electric heating defrosting is used, and the temperature fluctuation in the fresh meat cabinet is large is avoided, and deterioration of meat products is avoided.
Preferably, the solenoid valve has an electrical path that is greater than the diameter of the capillary tube. By adopting the structure, most of high-temperature gas exhausted by the compressor directly enters the evaporator through the electromagnetic valve, and a small part of refrigerant enters the evaporator through the capillary tube, and the two paths enter the evaporator to be balanced, so that the temperature of the evaporator is increased to defrost.
Preferably, the air inlet end of the fifth pipeline is communicated with the middle section of the first pipeline, and the air outlet end of the fifth pipeline is connected with the air inlet end of the evaporator. The high-temperature gas discharged by the compressor is divided into two paths when mostly passing through the first pipeline, one path of high-temperature gas enters the evaporator through the fifth pipeline and the electromagnetic valve, the other path of high-temperature gas enters the evaporator after passing through the capillary tube, and the temperature of the evaporator rises after the two paths of high-temperature gas enter the evaporator to balance, so that the defrosting speed is accelerated.
Preferably, the evaporator is provided with a temperature sensor, and the temperature sensor is electrically connected with the controller. By adopting the structure, the setting time and the setting temperature are adopted to jointly control the end of the defrosting cycle, and when any condition of the setting time or the setting temperature is met, the defrosting cycle is ended, and the refrigeration cycle is started.
Preferably, the evaporator is arranged in the fresh meat cabinet, and the compressor and the condenser are arranged at the bottom of the fresh meat cabinet. By adopting the structure, the use space of the fresh meat cabinet can be increased.
Preferably, a dry filter is provided on the second conduit. The dry filter filters impurities in the liquid refrigerant and keeps the whole pipeline clean.
Drawings
FIG. 1 is a schematic diagram of the cooling principle of an open fresh meat cabinet with hot gas defrosting according to the utility model;
fig. 2 is a schematic diagram of the defrosting principle of the hot-air defrosting open-type fresh meat cabinet.
In the figure, a compressor 1, a first pipe 2, a condenser 3, a second pipe 4, a capillary 5, a third pipe 6, an evaporator 7, a fourth pipe 8, a fifth pipe 9, an electromagnetic valve 10, and a dry filter 11.
Detailed Description
The utility model is further elucidated below in conjunction with the accompanying drawings.
The orientations related to the specification are all based on the orientations of the hot-air defrosting open fresh meat cabinet in normal operation, are not limited in storage and transportation, and only represent relative positional relationships and not absolute positional relationships.
As shown in fig. 1 and 2, the hot-gas defrosting open fresh meat cabinet comprises a compressor 1, wherein the air outlet end of the compressor 1 is connected with the air inlet end of a condenser 3 through a first pipeline 2, the liquid outlet end of the condenser 3 is connected with the liquid inlet end of a capillary tube 5 through a second pipeline 4, the liquid outlet end of the capillary tube 5 is connected with the liquid inlet end of an evaporator 7 through a third pipeline 6, and the air outlet end of the evaporator 7 is connected with the air inlet end of the compressor 1 through a fourth pipeline 8; the device also comprises a fifth pipeline 9 which is communicated with the first pipeline 2 and the third pipeline 6, wherein an electromagnetic valve 10 for controlling the opening and closing of the fifth pipeline 9 is arranged on the fifth pipeline 9, and the electromagnetic valve 10 is electrically connected with a controller.
The refrigeration principle of the utility model is as follows: the high-temperature gas discharged by the compressor 1 enters the condenser 3 to be condensed and then becomes liquid, the liquid refrigerant enters the capillary 5 to be throttled, the liquid refrigerant evaporates and absorbs heat in the evaporator 7, the evaporated liquid refrigerant is changed into gas and returns to the compressor 1 to form the open fresh meat cabinet refrigeration cycle of the product, and the frost layer accumulation is started on the evaporator 7 in the refrigeration cycle process.
The defrosting principle of the utility model is as follows: the high-temperature gas discharged by the compressor 1 is divided into two paths, one path enters the evaporator 7 through the fifth pipeline 9, the other path enters the condenser 3 for condensation, enters the evaporator 7 after passing through the capillary 5, and after the two paths enter the evaporator 7 for balancing, the temperature of the evaporator 7 is increased, and the frost layer is melted.
After the refrigerating cycle of the fresh meat cabinet reaches the set time, defrosting cycle is started, the controller controls the electromagnetic valve 10 to be opened, high-temperature gas exhausted by the compressor 1 is divided into two paths, one path enters the evaporator 7 through the fifth pipeline 9, the other path enters the condenser 3 to be condensed, enters the evaporator 7 after passing through the capillary 5, and after the two paths enter the evaporator 7 to be balanced, the temperature of the evaporator 7 is increased, and the frost layer is melted. After the defrosting cycle reaches the set time, the controller controls the electromagnetic valve 10 to be closed, the refrigeration cycle is started, the cycle process is repeated, the fresh meat cabinet is refrigerated and defrosted, the problems that the temperature in the fresh meat cabinet is suddenly increased and the temperature fluctuation in the fresh meat cabinet is large due to the fact that electric heating defrosting is used or high-temperature gas is directly introduced into the evaporator 7 can be avoided, and deterioration of meat products is avoided.
Wherein a drying filter 11 is arranged on the second pipe 4. The filter drier 11 filters impurities in the liquid refrigerant and keeps the whole pipeline clean. The high-temperature gas enters the condenser 3 to be condensed and then becomes liquid, the liquid is filtered by the drying filter 11 and enters the capillary 5 to be throttled, the liquid refrigerant is evaporated in the evaporator 7 to absorb heat, and the evaporated gas returns to the compressor 1 to form the open-type fresh meat cabinet refrigeration cycle of the product.
The solenoid valve 10 is of various specifications, and when in use, a solenoid valve 10 of a suitable size is selected to control the flow of high temperature gas into the evaporator 7. The evaporator 7 and the condenser 3 are small-pipe-diameter heat exchangers with optimized structures, which are used for reducing the usage amount of the refrigerant and avoiding liquid return. The evaporator 7 has a larger volume, and liquid return can not be generated in the hot gas defrosting process, so that a liquid storage tank is not needed.
Wherein, the evaporator 7 is arranged in the fresh meat cabinet, and the compressor 1 and the condenser 3 are arranged at the bottom of the fresh meat cabinet. By adopting the structure, the use space of the fresh meat cabinet can be increased.
Wherein the diameter of the electromagnetic valve 10 is larger than the diameter of the capillary 5. With the above structure, most of high-temperature gas discharged from the compressor 1 enters the evaporator 7 through the electromagnetic valve 10, and a small part of high-temperature gas enters the evaporator 7 after condensation, the flow of the high-temperature gas entering the evaporator 7 through the electromagnetic valve 10 is far greater than the flow entering the evaporator 7 from the capillary 5, and after two paths of high-temperature gas enter the evaporator to be balanced, the temperature of the evaporator 7 is increased to defrost.
As a preferable example of the present embodiment, the evaporator 7 is provided with a temperature sensor, and the temperature sensor is electrically connected to the controller. The temperature sensor senses the temperature of the evaporator 7 and transmits a signal to the controller. In the embodiment, the end of the defrosting cycle is controlled by adopting the setting time and the setting temperature, and when any condition of the setting time or the setting temperature is met, the defrosting cycle is ended, and the refrigeration cycle is started.
The air inlet end of the fifth pipeline 9 is communicated with the middle section of the first pipeline 2, and the air outlet end of the fifth pipeline 9 is connected with the air inlet end of the evaporator 7. The high-temperature gas discharged by the compressor 1 is divided into two paths by the first pipeline 2, one path of high-temperature gas enters the evaporator 7 by the fifth pipeline 9 and the electromagnetic valve 10, one path of high-temperature gas is condensed and then enters the evaporator 7, and after the two paths of high-temperature gas enter the evaporator to be balanced, the temperature of the evaporator 7 is increased, so that the defrosting speed is increased.
It should be understood that the above description is not intended to limit the utility model to the particular embodiments disclosed, but to limit the utility model to the particular embodiments disclosed, and that the utility model is not limited to the particular embodiments disclosed, but is intended to cover modifications, adaptations, additions and alternatives falling within the spirit and scope of the utility model.
Claims (6)
1. The open fresh meat cabinet comprises a compressor, wherein the air outlet end of the compressor is connected with the air inlet end of the condenser through a first pipeline, the liquid outlet end of the condenser is connected with the liquid inlet end of a capillary through a second pipeline, the liquid outlet end of the capillary is connected with the liquid inlet end of the evaporator through a third pipeline, and the air outlet end of the evaporator is connected with the air inlet end of the compressor through a fourth pipeline; the device is characterized by further comprising a fifth pipeline which is communicated with the compressor and the evaporator, wherein an electromagnetic valve for controlling the opening and closing of the fifth pipeline is arranged on the fifth pipeline, and the electromagnetic valve is electrically connected with a controller.
2. An open-type fresh meat cabinet for hot air defrosting as set forth in claim 1 wherein the solenoid valve has an electrical path larger than the diameter of the capillary tube.
3. The hot-gas-defrosted open fresh meat cabinet of claim 1 in which an air inlet end of the fifth pipe is connected to an intermediate section of the first pipe and an air outlet end of the fifth pipe is connected to an air inlet end of the evaporator.
4. An open-type fresh meat cabinet for hot air defrosting as set forth in claim 1, wherein a temperature sensor is provided on the evaporator, and the temperature sensor is electrically connected with the controller.
5. An open-type fresh meat cabinet according to any one of claims 1 to 4, wherein the evaporator is disposed within the fresh meat cabinet and the compressor and condenser are disposed at the bottom of the fresh meat cabinet.
6. An open-type fresh meat cabinet for hot air defrosting as set forth in claim 5 wherein a drying filter is provided on said second duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320555162.6U CN219264687U (en) | 2023-03-21 | 2023-03-21 | Open-type fresh meat cabinet with hot air defrosting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320555162.6U CN219264687U (en) | 2023-03-21 | 2023-03-21 | Open-type fresh meat cabinet with hot air defrosting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219264687U true CN219264687U (en) | 2023-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320555162.6U Active CN219264687U (en) | 2023-03-21 | 2023-03-21 | Open-type fresh meat cabinet with hot air defrosting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219264687U (en) |
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2023
- 2023-03-21 CN CN202320555162.6U patent/CN219264687U/en active Active
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