CN114791175A - Refrigerating system of on-vehicle tuna transportation low temperature cabinet of express delivery new forms of energy - Google Patents
Refrigerating system of on-vehicle tuna transportation low temperature cabinet of express delivery new forms of energy Download PDFInfo
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- CN114791175A CN114791175A CN202110101982.3A CN202110101982A CN114791175A CN 114791175 A CN114791175 A CN 114791175A CN 202110101982 A CN202110101982 A CN 202110101982A CN 114791175 A CN114791175 A CN 114791175A
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- tuna
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- 230000008020 evaporation Effects 0.000 claims abstract description 11
- 238000001704 evaporation Methods 0.000 claims abstract description 11
- 238000009833 condensation Methods 0.000 claims abstract description 9
- 230000005494 condensation Effects 0.000 claims abstract description 9
- 238000005057 refrigeration Methods 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 241000269849 Thunnus Species 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 239000003507 refrigerant Substances 0.000 description 19
- 239000003570 air Substances 0.000 description 13
- 239000003921 oil Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/06—Superheaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a low-temperature box refrigerating system for vehicle-mounted transportation of new energy for tuna express delivery, and belongs to the technical field of cold-chain logistics transportation. The refrigerating system comprises a vehicle-mounted power supply, a compressor, an oil separator, a condenser, a condensing fan, a heat regenerator, a capillary tube, an evaporator and an electromagnetic valve. The compressor power supply is connected with the vehicle-mounted power supply, the compressor exhaust port is connected with the inlet of the oil separator, the outlet of the oil separator is connected with the inlet of the condenser, the outlet of the condenser is connected with the inlet of the evaporation side of the heat regenerator, the outlet of the evaporation side of the heat regenerator is connected with the inlet of the capillary tube, the outlet of the capillary tube is connected with the inlet of the evaporator, the outlet of the evaporator is connected with the inlet of the condensation side of the heat regenerator, and the outlet of the condensation side of the heat regenerator is connected with the return air port of the direct current compressor. The outlet of the capillary tube is connected with the inlet of the electromagnetic valve, and the outlet of the electromagnetic valve is connected with the return air port of the compressor. The condensation fan is arranged on one side of the condenser and used for dissipating heat of the condenser. The invention is applied to new energy express delivery vehicles for transporting tunas, so as to ensure the freshness, taste and color of the tunas in the express delivery transportation process.
Description
Technical Field
The invention belongs to the technical field of cold-chain logistics transportation. Concretely relates to refrigerating system and device of express delivery new forms of energy car tuna transportation.
Background
Along with the gradual improvement of the living standard of people, the quality requirement of the living food is higher and higher. Tuna, as a popular food material, is gradually going to the dining table of every family. However, the tuna is stored in a high condition, and the storage temperature is preferably below-60 ℃, and the freshness, taste and color of the tuna are deteriorated due to the increase of the temperature. How to ensure the freshness of tunas before serving a dining table is a problem which needs to be jointly solved by the whole logistics storage and transportation express delivery industry. At present, low-temperature storage and transportation at the temperature of below-60 ℃ can be realized from the fishing and landing of tunas to storage to suppliers such as business and super suppliers, and the transportation link from the suppliers such as business and super suppliers to terminal customers cannot ensure the low-temperature transportation at the temperature of below-60 ℃.
At present, a double-machine cascade refrigeration system, a double-stage refrigeration system or a single-machine cascade system is mainly adopted in the-60 ℃ refrigeration system. However, the compressor is mostly an ac refrigeration compressor. The invention utilizes the vehicle-mounted direct current power supply to supply power to the direct current variable frequency compressor, and realizes the low temperature of minus 60 ℃ through the mixed working medium single-stage vapor compression refrigeration system.
Disclosure of Invention
The invention aims to provide a refrigeration system for express new energy vehicle-mounted tuna transportation low-temperature boxes, which is used for solving the problem of ultralow-temperature express transportation from business to terminal customers.
The technical scheme is as follows:
the utility model provides a refrigerating system of on-vehicle tuna transportation low temperature box of express delivery new forms of energy, it includes: the device comprises a vehicle-mounted power supply, a compressor, an oil separator, a condenser, a condensing fan, a heat regenerator, a capillary tube, an evaporator and an electromagnetic valve.
The oil separator is characterized in that a power supply of the compressor is connected with a vehicle-mounted power supply, an exhaust port of the compressor is connected with an inlet of the oil separator, an outlet of the oil separator is connected with an inlet of a condenser, an outlet of the condenser is connected with an inlet of an evaporation side of the heat regenerator, an outlet of the evaporation side of the heat regenerator is connected with an inlet of a capillary tube, an outlet of the capillary tube is connected with an inlet of an evaporator coil, an outlet of the evaporator coil is connected with an inlet of a condensation side of the heat regenerator, and an outlet of the condensation side of the heat regenerator is connected with a return air port of the direct current compressor. The outlet of the capillary tube is connected with the inlet of the electromagnetic valve, and the outlet of the electromagnetic valve is connected with the return air port of the compressor. The condensation fan is arranged on one side of the condenser and used for dissipating heat of the condenser.
By adopting the technical scheme, the direct-current variable-frequency rolling rotor compressor compresses a self-prepared environment-friendly mixed working medium from low temperature and low pressure to high temperature and high pressure, the formed high-temperature high-pressure mixed refrigerant exchanges heat with ambient air blown by a condensing fan in a condenser, the refrigerant is condensed to normal temperature and high pressure, the air is heated and then discharged into the atmosphere, and then the temperature of the air is further reduced in an evaporation section of a heat regenerator to form low-temperature high-pressure refrigerant liquid. Then the refrigerant is throttled and decompressed in the capillary tube to become liquid refrigerant with the temperature lower than-65 ℃, and then the refrigerant enters an evaporator coil, absorbs and stores the air and the heat of the tuna in the tuna box body in the coil to become low-pressure gaseous refrigerant, and then the refrigerant enters a condensing section of the heat regenerator again to be further heated and then enters a return air port of the compressor. Thereby realizing that the temperature of the air in the box body for storing the tuna is lower than minus 60 ℃.
Preferably, among the refrigerating system of the on-vehicle tuna of above-mentioned express delivery new forms of energy transportation low temperature box: the environment-friendly refrigerant composition also comprises a self-prepared environment-friendly mixed refrigerant, and the environment-friendly mixed refrigerant is formed by mixing two or more of R600a, R290, R404A, R410, R23, R1150 and R14.
By adopting the technical scheme: several kinds of working media are mixed to form a new working medium, so that the environment-friendly requirement is met, and the evaporation temperature below-65 ℃ can be reached through one-time throttling of a single compressor.
More preferably, among the refrigerating system of the on-vehicle tuna of express delivery new forms of energy transportation low-temperature cabinet: also includes an oil separator. The inlet of the oil separator is connected with the exhaust port of the compressor, and the outlet of the compressor is connected with the inlet of the condenser. The oil return port of the oil separator is connected with the air suction port of the compressor.
By adopting the technical scheme: the oil separator separates the lubricating oil in the refrigerant and returns the lubricating oil to the air suction port of the compressor, so that the lubricating oil is prevented from entering a capillary tube to block a system pipeline or entering a condenser or an evaporator to influence the heat exchange of the system.
Further preferred is, among the refrigerating system of the on-vehicle tuna of above-mentioned express delivery new forms of energy transportation low temperature cabinet: the compressor is a direct-current variable-frequency rolling rotor compressor and is powered by a vehicle-mounted power supply.
By adopting the technical scheme: the compressor is directly powered by the vehicle-mounted power supply, can be conveniently installed on a new energy automobile, and is more suitable for the requirement of environmental protection.
Further preferred is, among the refrigerating system of the on-vehicle tuna of above-mentioned express delivery new forms of energy transportation low temperature cabinet: the condensing fan is a direct-current axial flow fan.
Further preferred is, among the refrigerating system of the on-vehicle tuna of above-mentioned express delivery new forms of energy transportation low temperature cabinet: the heat regenerator is a plate heat exchanger.
Further preferred is, among the refrigerating system of the on-vehicle tuna of above-mentioned express delivery new forms of energy transportation low temperature cabinet: the evaporator is a red copper spiral coil evaporator.
Compared with the conventional low-temperature refrigerated vehicle at the temperature of-23 ℃, the storage box body disclosed by the invention is lower in temperature, is more suitable for maintaining the freshness, taste and color of the tuna, and is more suitable for express transportation of the tuna.
Drawings
The invention is further described with reference to the following figures and detailed description.
FIG. 1 is a block diagram of embodiment 1.
Figure 2 is a front view of an express new energy vehicle-mounted tuna transport cold box of embodiment 1.
Fig. 3 is a top view sectional view of the vehicle-mounted tuna transportation low-temperature box for express delivery of new energy in embodiment 1.
Figure 4 is an ultra-low temperature cabinet and evaporator coil of an express new energy vehicle tuna transport cryobox of embodiment 1.
Each reference number corresponds to a component name as follows: 11. a vehicle-mounted power supply; 12. a compressor; 13. an oil separator; 14. a condenser; 15. a condensing fan; 16. a heat regenerator; 17. a capillary tube; 18. an evaporator; 19. An electromagnetic valve; 21. a normal temperature box; 22. a low temperature box.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the following embodiments are further described.
Fig. 1 shows a diagram of the refrigeration system, and the technical scheme is as follows:
the utility model provides a refrigerating system of on-vehicle tuna of express delivery new forms of energy transportation low temperature box, it includes: the system comprises a vehicle-mounted power supply 11, a compressor 12, an oil separator 13, a condenser 14, a condensing fan 15, a heat regenerator 16, a capillary tube 17, an evaporator 18 and an electromagnetic valve 19.
The power supply of the compressor 12 is connected with the vehicle-mounted power supply 11, the exhaust port of the compressor 12 is connected with the inlet of the oil separator 13, the outlet of the oil separator 13 is connected with the inlet of the condenser 14, the outlet of the condenser 14 is connected with the inlet of the heat regenerator 16, the outlet of the heat regenerator 16 is connected with the inlet of the capillary tube 17, the outlet of the capillary tube 17 is connected with the inlet of the evaporator 18, the outlet of the evaporator 18 is connected with the evaporation side inlet of the heat regenerator 16, and the outlet of the evaporation side of the heat regenerator 16 is connected with the return air port of the direct current compressor 12. The outlet of the evaporator 18 is connected with the inlet of an electromagnetic valve 19, and the outlet of the electromagnetic valve 19 is connected with the return port of the compressor 12. The condensing fan 15 is externally mounted on one side of the condenser 14 to dissipate heat of the condenser 14.
Fig. 2, fig. 3 and fig. 4 are related diagrams of the vehicle-mounted tuna transportation cold box for express delivery of new energy according to the specific embodiment.
The utility model provides an on-vehicle tuna transportation low temperature cabinet of express delivery new forms of energy of having installed above-mentioned refrigerating system, is equipped with normal atmospheric temperature box 21, low temperature box 22 in its box. The piping and electrical connections are not shown in the figure.
In practice, the working process is as follows:
the direct current frequency conversion rolling rotor compressor 12 compresses the self-prepared environment-friendly mixed working medium from low temperature and low pressure to high temperature and high pressure, the high-temperature and high-pressure mixed refrigerant exchanges heat with the ambient air blown by the condensing fan 15 in the condenser 14, is condensed to normal temperature and high pressure, and is further cooled in the evaporation section of the heat regenerator 16 to become the low-temperature and high-pressure refrigerant. Then, the refrigerant is throttled and decompressed in the capillary tube 17 to become liquid refrigerant with the temperature lower than-65 ℃, and then enters the coil of the evaporator 18, the air and the heat of the tuna in the tuna box are absorbed and stored in the coil of the evaporator 18 to become low-pressure gaseous refrigerant, and then the refrigerant enters the condensing section of the regenerator 16 again to be further heated and then enters the air return port of the compressor 12. When the system exhaust temperature is too high in the operation process, the electromagnetic valve 19 is opened, so that the low-temperature refrigerant at the outlet of the capillary tube 17 enters the rolling rotor compressor 12, and the suction temperature of the compressor 12 is reduced, so that the system exhaust temperature is reduced. According to the operation mode, the air temperature in the low-temperature box body 22 for storing the tuna can be lower than minus 60 ℃. The aim of keeping the tuna fresh is achieved.
Claims (6)
1. Refrigeration system of on-vehicle tuna transportation low temperature cabinet of express delivery new forms of energy, its characterized in that: the device comprises a vehicle-mounted power supply, a compressor, an oil separator, a condenser, a condensing fan, a heat regenerator, a capillary tube, an evaporator and an electromagnetic valve.
2. The refrigeration system for the express new energy vehicle-mounted tuna transportation cold box of claim 1, characterized in that: the compressor power supply is connected with the vehicle-mounted power supply, the compressor exhaust port is connected with the inlet of the oil separator, the outlet of the oil separator is connected with the inlet of the condenser, the outlet of the condenser is connected with the inlet of the evaporation side of the heat regenerator, the outlet of the evaporation side of the heat regenerator is connected with the inlet of the capillary tube, the outlet of the capillary tube is connected with the inlet of the evaporator, the outlet of the evaporator is connected with the inlet of the condensation side of the heat regenerator, and the outlet of the condensation side of the heat regenerator is connected with the return air port of the direct current compressor. The outlet of the capillary tube is connected with the inlet of the electromagnetic valve, and the outlet of the electromagnetic valve is connected with the return air port of the compressor. The condensation fan is arranged on one side of the condenser and used for dissipating heat of the condenser.
3. The refrigeration system for express delivery of the vehicle-mounted tuna transportation cold box using the new energy according to claim 1, characterized in that: the compressor is a direct-current variable-frequency rolling rotor compressor and is powered by a vehicle-mounted power supply.
4. The refrigeration system for express delivery of the vehicle-mounted tuna transportation cold box using the new energy according to claim 1, characterized in that: the condensing fan is a direct-current axial-flow fan.
5. The refrigeration system for the express new energy vehicle-mounted tuna transportation cold box of claim 1, characterized in that: the heat regenerator is a plate heat exchanger.
6. The refrigeration system for express delivery of the vehicle-mounted tuna transportation cold box using the new energy according to claim 1, characterized in that: the evaporator is a red copper spiral coil evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110101982.3A CN114791175A (en) | 2021-01-26 | 2021-01-26 | Refrigerating system of on-vehicle tuna transportation low temperature cabinet of express delivery new forms of energy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110101982.3A CN114791175A (en) | 2021-01-26 | 2021-01-26 | Refrigerating system of on-vehicle tuna transportation low temperature cabinet of express delivery new forms of energy |
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| CN114791175A true CN114791175A (en) | 2022-07-26 |
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| CN202110101982.3A Pending CN114791175A (en) | 2021-01-26 | 2021-01-26 | Refrigerating system of on-vehicle tuna transportation low temperature cabinet of express delivery new forms of energy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319611A (en) * | 2019-07-03 | 2019-10-11 | 上海沛芾航天科技发展有限公司 | Low temperature impact test box and its refrigeration system |
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2021
- 2021-01-26 CN CN202110101982.3A patent/CN114791175A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319611A (en) * | 2019-07-03 | 2019-10-11 | 上海沛芾航天科技发展有限公司 | Low temperature impact test box and its refrigeration system |
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