CN213873353U - Direct-cooling cold fresh warehouse capable of enhancing fresh-keeping refrigeration - Google Patents
Direct-cooling cold fresh warehouse capable of enhancing fresh-keeping refrigeration Download PDFInfo
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- CN213873353U CN213873353U CN202022385132.4U CN202022385132U CN213873353U CN 213873353 U CN213873353 U CN 213873353U CN 202022385132 U CN202022385132 U CN 202022385132U CN 213873353 U CN213873353 U CN 213873353U
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Abstract
The utility model provides a can strengthen cold bright storehouse of direct cooling of fresh-keeping refrigeration, including the freezer, the outside of freezer is installed directly the cold machine group, and the aluminium calandria is installed at the top of freezer, and directly the cold machine group is connected and is led to the freezer inside with the aluminium calandria, directly the cold machine group produces air conditioning and transmits to the aluminium calandria and refrigerates the freezer inside; the PLC control cabinet receives the temperature information of the temperature sensor, sends control signals to the direct cooling unit and the humidifying and dehumidifying equipment after processing, and controls the refrigeration state of the direct cooling unit and the auxiliary refrigeration of the humidifying and dehumidifying equipment; the refrigeration mode through to directly cooling the unit is regulated and control, and circulating refrigeration, through regulating and controlling humidification equipment cooperation directly cooling the unit reinforcing quick refrigeration, guarantee that the temperature difference in the freezer is in a closed loop endless state, guarantee the fresh-keeping ageing and fresh-keeping degree of flesh of fish poultry food in the freezer.
Description
Technical Field
The utility model relates to a low temperature refrigeration technology field especially relates to a can strengthen cold bright storehouse of fresh-keeping refrigerated direct cooling.
Background
Fish and poultry are composed of numerous cells, proteins, sugar, inorganic salts and other substances exist in cytoplasm (intracellular liquid) and intercellular substance (cell-cell liquid), and the concentration of cytoplasm is greater than that of intercellular substance; when the external temperature is reduced to the freezing point of the intercellular substance, a large amount of fine ice crystals are generated in the intercellular substance; when the temperature further drops to reach the freezing point of the cytoplasm, ice crystals are also generated in the cytoplasm. However, because the ice crystals generated by cytoplasm and intercellular substance are different in time and concentration, the number of the generated ice crystals is greatly different, and a certain pressure difference is generated, when the pressure difference reaches a certain degree, the cell membrane is damaged, and a plurality of channels which are enough for the nutrient substances to freely come in and go out are formed on the cell membrane; when the fish poultry food is unfrozen, a large amount of nutrient substances in cytoplasm can be lost through the channels (when the traditional frozen fish poultry food is unfrozen by freezing and refrigerating, a large amount of foams are generated in unfreezing water, and the foams are nutrient substances), so that the nutritional value of the fish poultry food is greatly reduced; experiments prove that the size and distribution of ice crystals generated in fish and poultry are related to the passing through the maximum ice crystal generation area; the shorter the time the cell membrane passes through the region of maximum ice crystal generation, the smaller the pressure difference to which the cell membrane is subjected, and the less the cell is destroyed; one obvious disadvantage of the conventional freezing and refrigerating warehouse is that the time for passing through the maximum ice crystal generation area is long, so that unbalanced pressure difference is inevitably generated inside and outside cell membranes, the cell membranes are damaged, and the nutrient loss after unfreezing is caused.
The event needs a new can strengthen the cold bright storehouse of fresh-keeping refrigerated direct cooling urgently, through setting up direct cooling unit and humidification device rapid cooling to regulate and control through the refrigeration mode to direct cooling unit, circulation refrigeration, through the direct cooling unit reinforcing rapid cooling of regulation and control humidifying equipment cooperation, the temperature difference in the assurance cold storehouse is in a closed loop endless state, guarantees fresh-keeping ageing and the fresh-keeping degree of flesh of fish poultry food in the freezer.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists in the above-mentioned technique, the utility model provides a can strengthen fresh-keeping refrigerated cold bright storehouse of direct cooling sets up direct cooling unit and humidification dehumidification equipment, through the intelligent control of PLC switch board to direct cooling unit and humidification dehumidification equipment, through the quick refrigeration of the direct cooling unit reinforcing of regulation and control humidification equipment cooperation, realize the inside temperature closed loop circulation of freezer, gaseous circulation and the dynamic balance of humidity, guarantee that the environment in the freezer is in dynamic balance all the time, guarantee fresh-keeping prescription and the fresh-keeping degree of flesh of fish poultry food in the freezer.
In order to achieve the purpose, the utility model provides a direct-cooling fresh warehouse capable of enhancing fresh-keeping refrigeration, which comprises a refrigeration house, wherein a direct-cooling unit is arranged outside the refrigeration house, an aluminum calandria is arranged at the top of the refrigeration house, the direct-cooling unit is connected with the aluminum calandria and communicated with the interior of the refrigeration house, and the direct-cooling unit generates cold air and transmits the cold air to the aluminum calandria to refrigerate the interior of the refrigeration house; still install a plurality of temperature sensor all around at the top of freezer, PLC switch board and humidification dehumidification equipment are installed outward to the freezer, humidification dehumidification equipment is connected to through vent line inside the freezer, directly cool the unit humidification dehumidification equipment and temperature sensor and humidity transducer all with the PLC switch board is connected, the PLC switch board is received temperature sensor's temperature information, send control signal extremely after handling direct cooling unit and humidification dehumidification equipment, the refrigeration state of control direct cooling unit and the supplementary refrigeration of humidification dehumidification equipment.
Preferably, the method comprises the following steps: the refrigeration house is characterized in that a nitrogen generator is arranged outside the refrigeration house, the nitrogen generator is connected with the direct cooling unit, and the nitrogen generator generates nitrogen for supplying cold air to the direct cooling unit.
Preferably, the method comprises the following steps: the direct cooling unit comprises a compressor and a refrigeration pipeline, wherein the input end of the compressor is connected with the nitrogen generator and receives nitrogen generated by the nitrogen generator, the output end of the compressor is connected with one end of the refrigeration pipeline, the other end of the refrigeration pipeline is connected with the aluminum exhaust pipe, and cold air generated by the compressor is conveyed to the aluminum exhaust pipe through the refrigeration pipeline
Preferably, the method comprises the following steps: the ventilation pipeline comprises an exhaust pipeline and an air supply pipeline, the air supply pipeline is connected with the humidifying end of the humidifying and dehumidifying equipment, and the exhaust pipeline is connected with the dehumidifying end of the humidifying and dehumidifying equipment.
Preferably, the method comprises the following steps: an air inlet fan is arranged in the air supply pipeline, and an air inlet net pipe is arranged at the position of a pipe orifice; an exhaust fan is arranged in the exhaust pipeline, an exhaust net pipe is arranged at the position of a pipe orifice, and centrifugal pipeline fans are arranged in the air supply pipeline and the exhaust pipeline.
Preferably, the method comprises the following steps: the direct cooling unit further comprises a water outlet and a cooling tower, the cooling tower is connected with the water outlet of the direct cooling unit, and water generated by the refrigerating unit is discharged to the cooling tower through the water outlet to be cooled.
Preferably, the method comprises the following steps: the inside humidity transducer, carbon dioxide sensor and the hydrogen sulfide sensor that still be provided with of freezer with the PLC switch board electricity is connected.
Preferably, the method comprises the following steps: the PLC control cabinet is provided with a Beidou control module, a 5G control module and a WI-FI control module, and receives control information of external equipment through the Beidou control module, the 5G control module and the WI-FI control module.
Preferably, the method comprises the following steps: the freezer still is provided with the display screen subassembly outward, the display screen subassembly with the PLC switch board is connected, control and show the transmission extremely the information of PLC switch board.
The utility model has the advantages that: compared with the prior art, the direct-cooling fresh-keeping storehouse capable of enhancing the freshness preservation and refrigeration comprises a cold storage, wherein a direct-cooling unit is arranged outside the cold storage, an aluminum calandria is arranged at the top of the cold storage, the direct-cooling unit is connected with the aluminum calandria and communicated with the inside of the cold storage, and the direct-cooling unit generates cold air and transmits the cold air to the aluminum calandria to refrigerate the inside of the cold storage; the direct cooling unit, the humidifying and dehumidifying equipment, the temperature sensor and the humidity sensor are all connected with the PLC control cabinet, the PLC control cabinet receives temperature information of the temperature sensor, sends control signals to the direct cooling unit and the humidifying and dehumidifying equipment after processing, and controls the refrigeration state of the direct cooling unit and the auxiliary refrigeration of the humidifying and dehumidifying equipment; the refrigeration mode through to directly cooling the unit is regulated and control, and circulating refrigeration, through regulating and controlling humidification equipment cooperation directly cooling the unit reinforcing quick refrigeration, guarantee that the temperature difference in the freezer is in a closed loop endless state, guarantee the fresh-keeping ageing and fresh-keeping degree of flesh of fish poultry food in the freezer.
Drawings
FIG. 1 is a schematic view of an air duct of the present invention;
fig. 2 is a schematic view of the aluminum row tube of the present invention;
fig. 3 is a perspective view of the present invention;
fig. 4 is a perspective view of the present invention;
fig. 5 is a working principle diagram of the present invention.
The main element symbols are as follows:
1. a compressor; 2. a humidifying and dehumidifying device; 3. a nitrogen generator; 4. a cold storage; 5. a PLC control cabinet; 6. a display screen assembly; 7. an aluminum comb; 8. a temperature sensor; 9. an air duct.
Detailed Description
In order to make the present invention clearer, the present invention will be further described with reference to the accompanying drawings.
Experiments prove that the size and distribution of ice crystals generated in fish and poultry are related to the passing through the maximum ice crystal generation area; the shorter the time the cell membrane passes through the region of maximum ice crystal generation, the smaller the pressure difference to which the cell membrane is subjected, and the less the cell is destroyed; one obvious disadvantage of the conventional freezing and refrigerating warehouse is that the time for passing through the maximum ice crystal generation area is long, so that unbalanced pressure difference is inevitably generated inside and outside cell membranes, the cell membranes are damaged, and the nutrient loss after unfreezing is caused.
The fresh storehouse of cold is directly cooled through setting up direct cooling unit rapid cooling to through the refrigeration mode to directly cold, circulation refrigeration is needed urgently, and guarantees that temperature and humidity and gas concentration in the cold storehouse are in a closed loop endless state, guarantees fresh-keeping ageing and fresh-keeping degree of flesh of fish poultry food in the freezer.
Specifically, the utility model provides a can strengthen cold bright storehouse of direct cooling of fresh-keeping refrigeration, please refer to fig. 1-3, the device includes: the refrigeration system comprises a refrigeration house 4, wherein a direct cooling unit and a nitrogen generator 3 connected with the direct cooling unit are arranged outside the refrigeration house 4, an aluminum calandria 7 is arranged at the top of the refrigeration house 4, and the refrigeration house 4 is connected with the aluminum calandria 7 and carries out refrigeration through the aluminum calandria 7; the periphery of the top of the refrigeration house 4 is also provided with a plurality of temperature sensors 8, the refrigeration house is also provided with a PLC control cabinet 5, the direct cooling unit and the temperature sensors 8 are both connected with the PLC control cabinet 5, and the PLC control cabinet 5 receives temperature information of the temperature sensors 8, sends control signals to the direct cooling unit after processing and controls the refrigeration state of the direct cooling unit; the PLC control cabinet 5 is provided with a temperature control program, temperature change information in the refrigeration house 4 is obtained through the temperature sensor 8, the PLC control cabinet 5 carries out temperature circulation regulation and control according to the received temperature change information, the direct cooling motor distributes cold air in the refrigeration house through the aluminum calandria 7, the nitrogen generator 3 continuously produces nitrogen gas to refrigerate, and the insurance temperature of fish and poultry is generally between-1 ℃ and-40 ℃; the humidifying and dehumidifying equipment 2 is also arranged outside the refrigeration house 4, and the humidifying and dehumidifying equipment 2 is connected with the PLC control cabinet 5 and is connected to the inside of the refrigeration house through an air duct 9; PLC switch board is through receiving the temperature information in freezer 4, handles and control humidification dehumidification equipment 2 carries out work, when humidification dehumidification equipment 2 carries out the humidification, the refrigeration effect of the direct cooling unit of moisture cooperation that produces can make the temperature in the freezer reach the refrigeration value rapidly to can make and keep a suitable humidity in the freezer, guarantee the quick freezing of flesh of fish poultry promptly and lock the bright, keep the humidity state that the storehouse humidity is in easy keeping simultaneously.
In a specific embodiment, mention is made of: the specific temperature closed-loop circulation steps of the refrigerating unit are as follows:
(1) under the state of normal temperature of 25 ℃, controlling the system and starting the refrigeration work of the direct cooling unit;
(2) the refrigeration working temperature of the direct cooling unit starts to run for refrigeration from the beginning normal temperature of 25 ℃, the temperature is rapidly reduced at the speed reduction rate of 1.29 ℃ per minute, after 50 minutes of rapid reduction, the temperature of the refrigeration house is rapidly reduced from the normal temperature of 25 ℃ to the lowest node of-40 ℃ (the temperature difference is 65 ℃), the unit is shut down and the refrigeration working is stopped at the same time;
(3) when the temperature of the refrigeration house is naturally raised at an upward speed of 0.68 ℃ per minute in a state of-40 ℃, and the temperature of the refrigeration house 4 is automatically raised from-40 ℃ to-1 ℃ (the highest temperature node) after 60 minutes of natural upward temperature raising time, the control system automatically starts the direct cooling unit to start the refrigeration work;
(4) when the temperature of the refrigeration house 4 is rapidly reduced at a rate of 0.81 ℃ per minute in a state of-1 ℃, the temperature is rapidly reduced within 50 minutes, and the temperature of the refrigeration house 4 is rapidly reduced from-1 ℃ to-40 ℃ (the lowest node of the temperature), the control system automatically starts the direct cooling unit to start to carry out refrigeration work;
(5) when the temperature of the refrigeration house 4 is at-40 ℃, starting the direct cooling unit to start refrigeration, and the temperature of the refrigeration house 4 rises at the rate of 0.68 ℃ per minute, and after 60 minutes of rate rise time, the temperature of the refrigeration house 4 automatically rises from-40 ℃ to-1 ℃ (the highest node of the temperature), the control system automatically starts the direct cooling unit to start refrigeration;
(6) when the system is controlled, the temperature is quickly reduced from 25 ℃ to minus 40 ℃ (± 65 ℃); then the temperature is raised from minus 40 ℃ to minus 1 ℃ (the temperature difference is 40 ℃); rapidly reducing the temperature from-1 ℃ to-40 ℃ (the temperature difference is 40 ℃); after the temperature is raised from minus 40 ℃ to minus 1 ℃ (the temperature difference is 40 ℃), the direct cooling unit starts to respectively carry out infinite circulation control refrigeration and fresh-keeping work of temperature, temperature difference and closed loop at the lower speed of 0.81 ℃ per minute and the upper speed of 0.68 ℃ per minute.
One embodiment mentions: the direct cooling unit comprises a compressor 1 and a refrigeration pipeline, wherein the input end of the compressor 1 is connected with a nitrogen generator 3, the output end of the compressor is connected with one end of the refrigeration pipeline, the other end of the refrigeration pipeline is connected with an aluminum exhaust pipe 7, the direct cooling unit also comprises a water outlet and a cooling tower, the cooling tower is connected with the water outlet of the direct cooling unit, and water generated by the refrigeration unit is discharged to the cooling tower through the water outlet for cooling; the cold air produced by the compressor 1 is transmitted to the aluminum calandria 7 through a refrigeration pipeline, the aluminum calandria 7 cools and disperses the cold air into the refrigeration house 4, wherein the aluminum calandria 7 can be a fin evaporator; water finally generated by the direct cooling unit is conveyed to the cooling tower through the water outlet, and the cooled water is recycled after the cooling tower cools the water.
One embodiment mentions: the humidifying and dehumidifying equipment 2 is also arranged outside the refrigeration house 4, and the humidifying and dehumidifying equipment 2 is connected with the PLC control cabinet 5 and is connected to the inside of the refrigeration house through an air duct 9; the air duct 9 comprises an exhaust duct and an air supply duct, the air supply duct is connected with the humidifying end of the humidifying and dehumidifying device 2, and the exhaust duct is connected with the dehumidifying end of the humidifying and dehumidifying device 2; an air inlet fan is arranged in the air supply pipeline, and an air inlet net pipe is arranged at the position of the pipe orifice; an exhaust fan is arranged in the exhaust pipeline, an exhaust net pipe is arranged at the position of a pipe orifice, and centrifugal pipeline fans are arranged in the air supply pipeline and the exhaust pipeline; a humidity sensor, a carbon dioxide sensor and a hydrogen sulfide sensor which are electrically connected with the PLC control cabinet 5 are also arranged in the refrigeration house 4; the humidity information that the humidity transducer that the humidification dehumidifier received through PLC switch board 5 acquireed carries out the humidification circulation, control humidification end carries the control that has humidity to the freezer 4 in when humidity is low, simultaneously through exhaust duct exhaust unnecessary waste gas, discharge unnecessary moisture in freezer 4 when humidity is high, supply air duct and exhaust duct still possess the function of exhaust gas and delivery air simultaneously, PLC switch board 5 is through the gas concentration information who receives carbon dioxide sensor and hydrogen sulfide sensor, control centrifugal pipeline fan, keep inside carbon dioxide concentration and hydrogen sulfide concentration in lower normal value.
One embodiment mentions: the PLC control cabinet 5 is provided with a Beidou control module, a 5G control module and a WI-FI control module, and the PLC control cabinet 5 receives control information of external equipment through the Beidou control module, the 5G control module and the WI-FI control module; the display screen assembly 6 is also arranged outside the refrigeration house 4, and the display screen assembly 6 is connected with the PLC control cabinet 5 and used for monitoring and displaying information transmitted to the PLC control cabinet 5; the display screen assembly 6 can intuitively display the gas concentration, the real-time temperature and the real-time humidity in the refrigeration house and the working conditions of all units in the refrigeration house, and is beneficial to a user to directly observe the conditions in the refrigeration house; the Beidou control module, the 5G control module and the WI-FI control module are arranged to control the PLC control cabinet 5 through a remote means, real-time information of the refrigeration house 4 received by the PLC control cabinet 5 can be monitored remotely in real time, and real-time control over the condition of the refrigeration house 4 is guaranteed.
The utility model has the advantages that:
1. through the intelligent control of PLC switch board to direct-cooled unit and humidification dehumidification equipment, realize the inside temperature closed loop circulation of freezer, gaseous circulation and the dynamic balance of humidity guarantee that the environment in the freezer is in dynamic balance all the time, guarantee the fresh-keeping ageing and the fresh-keeping degree of flesh of fish poultry food in the freezer.
2. Monitoring the gas concentration in the cold storage through a gas sensor; meanwhile, the PLC control cabinet controls the exhaust pipeline and the air supply pipeline to keep the concentration of the gas in the cold storage balanced.
The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.
Claims (9)
1. The direct-cooling fresh cold storage capable of enhancing the fresh-keeping refrigeration is characterized by comprising a cold storage, wherein a direct-cooling unit is arranged outside the cold storage, an aluminum pipe bank is arranged at the top of the cold storage, the direct-cooling unit is connected with the aluminum pipe bank and communicated with the inside of the cold storage, and the direct-cooling unit generates cold air and transmits the cold air to the aluminum pipe bank to refrigerate the inside of the cold storage; still install a plurality of temperature sensor all around at the top of freezer, PLC switch board and humidification dehumidification equipment are installed outward to the freezer, humidification dehumidification equipment is connected to through vent line inside the freezer, directly cool the unit humidification dehumidification equipment and temperature sensor and humidity transducer all with the PLC switch board is connected, the PLC switch board is received temperature sensor's temperature information, send control signal extremely after handling direct cooling unit and humidification dehumidification equipment, the refrigeration state of control direct cooling unit and the supplementary refrigeration of humidification dehumidification equipment.
2. The direct-cooling fresh-keeping warehouse capable of enhancing the fresh-keeping refrigeration as claimed in claim 1, wherein a nitrogen generator is arranged outside the refrigerator, the nitrogen generator is connected with the direct-cooling unit, and the nitrogen generator generates nitrogen for the direct-cooling unit to produce cold air.
3. The direct-cooling chilled fresh food storage according to claim 2, wherein the direct-cooling unit comprises a compressor and a cooling pipeline, the input end of the compressor is connected with the nitrogen generator and receives nitrogen generated by the nitrogen generator, the output end of the compressor is connected with one end of the cooling pipeline, the other end of the cooling pipeline is connected with the aluminum discharge pipe, and cold air generated by the compressor is transmitted to the aluminum discharge pipe through the cooling pipeline.
4. The direct-cooling chilled fresh food storage capable of enhancing fresh-keeping refrigeration as claimed in claim 1, wherein the ventilation duct comprises an exhaust duct and a supply duct, the supply duct is connected with the humidifying end of the humidifying and dehumidifying device, and the exhaust duct is connected with the dehumidifying end of the humidifying and dehumidifying device.
5. The direct-cooling cold fresh food warehouse capable of enhancing fresh-keeping refrigeration according to claim 4, wherein an air inlet fan is arranged in the air supply pipeline, and an air inlet net pipe is arranged at the position of an orifice of the air supply pipeline; an exhaust fan is arranged in the exhaust pipeline, an exhaust net pipe is arranged at the position of a pipe orifice, and centrifugal pipeline fans are arranged in the air supply pipeline and the exhaust pipeline.
6. The direct-cooling fresh food warehouse capable of enhancing fresh-keeping refrigeration as claimed in claim 1, wherein the direct-cooling unit further comprises a water outlet and a cooling tower, the cooling tower is connected with the water outlet of the direct-cooling unit, and water generated by the direct-cooling unit is discharged to the cooling tower through the water outlet for cooling.
7. The direct-cooling fresh air warehouse capable of enhancing the fresh-keeping refrigeration according to claim 1, wherein a humidity sensor, a carbon dioxide sensor and a hydrogen sulfide sensor electrically connected with the PLC control cabinet are further arranged inside the cold warehouse.
8. The direct-cooling chilled fresh food storage capable of enhancing fresh-keeping refrigeration of claim 1, wherein the PLC control cabinet is provided with a Beidou control module, a 5G control module and a WI-FI control module, and receives control information of external equipment through the Beidou control module, the 5G control module and the WI-FI control module.
9. The direct-cooling fresh food warehouse capable of enhancing the fresh-keeping refrigeration according to claim 1, wherein a display screen assembly is further arranged outside the cold warehouse, and the display screen assembly is connected with the PLC control cabinet, monitors and displays information transmitted to the PLC control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022385132.4U CN213873353U (en) | 2020-10-23 | 2020-10-23 | Direct-cooling cold fresh warehouse capable of enhancing fresh-keeping refrigeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022385132.4U CN213873353U (en) | 2020-10-23 | 2020-10-23 | Direct-cooling cold fresh warehouse capable of enhancing fresh-keeping refrigeration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213873353U true CN213873353U (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022385132.4U Active CN213873353U (en) | 2020-10-23 | 2020-10-23 | Direct-cooling cold fresh warehouse capable of enhancing fresh-keeping refrigeration |
Country Status (1)
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|---|---|
| CN (1) | CN213873353U (en) |
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2020
- 2020-10-23 CN CN202022385132.4U patent/CN213873353U/en active Active
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Effective date of registration: 20230413 Address after: Room 401, Building 2, No. 110 Longkun South Road, Longhua District, Haikou City, Hainan Province, 570100 Patentee after: Wang Bin Patentee after: Wang Jiahui Address before: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee before: Zuihao technology operation (Shenzhen) Group Co.,Ltd. |