CN108981269B - Energy-saving fresh logistics preservation cabinet based on cold chain terminal district - Google Patents
Energy-saving fresh logistics preservation cabinet based on cold chain terminal district Download PDFInfo
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- CN108981269B CN108981269B CN201810629965.5A CN201810629965A CN108981269B CN 108981269 B CN108981269 B CN 108981269B CN 201810629965 A CN201810629965 A CN 201810629965A CN 108981269 B CN108981269 B CN 108981269B
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- 238000004321 preservation Methods 0.000 title claims abstract description 26
- 238000009423 ventilation Methods 0.000 claims abstract description 20
- 235000012055 fruits and vegetables Nutrition 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 16
- 230000017525 heat dissipation Effects 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 abstract description 24
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract description 4
- 239000005977 Ethylene Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 239000003507 refrigerant Substances 0.000 abstract description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 3
- 239000001569 carbon dioxide Substances 0.000 abstract description 3
- 235000013311 vegetables Nutrition 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 235000021022 fresh fruits Nutrition 0.000 abstract description 2
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005679 Peltier effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D16/00—Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
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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
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
-
- 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
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
- Y02A40/963—Off-grid food refrigeration
- Y02A40/966—Powered by renewable energy sources
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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)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses an energy-saving fresh logistics preservation cabinet based on a cold chain terminal district, which comprises a preservation cabinet body composed of a box body, wherein a solar thermoelectric refrigerating system is arranged on the preservation cabinet body, and the preservation cabinet body is connected with a tunnel air ventilation system; the preservation cabinet adopts solar energy to drive thermoelectric refrigeration, and the solar energy has the advantages of environmental protection, cleanness, low price, reproducibility and the like, and does not need filling and pouring refrigerant; meanwhile, in order to solve the problem of heat dissipation of a thermoelectric refrigerating hot end, ground wind and a graphene layer are introduced to strengthen heat dissipation; for fresh fruits and vegetables, ventilation is performed by using the tunnel wind with proper annual temperature, so that the concentration of carbon dioxide and ethylene can be reduced, and the fresh-keeping effect of fruits and vegetables is improved, thereby ensuring that the preservation cabinet has the characteristics of energy conservation, environmental protection and the like.
Description
Technical Field
The invention relates to a fresh logistics storage cabinet, in particular to an energy-saving fresh logistics storage cabinet based on a cold chain terminal cell, and belongs to the technical field of refrigeration and heat pumps.
Background
Cold chain streams still have drawbacks throughout the cold chain industry, which are particularly apparent at the end of the cold chain link. In general, most purchasers cannot take goods in time after buying, and the cold-chain logistics can have problems in the last kilometer, so that the freshness of food cannot be guaranteed. Based on the temperature-controllable residential fresh logistics storage cabinet has a certain meaning.
Currently, the types of products existing in the prior art are mainly divided into three types: the first type of products are that a compression refrigeration system is utilized, a group of evaporators and a plurality of pressure regulating valves are arranged in each cabinet body, the cost of the products is high, the filling amount of the refrigerant is large, and the running maintenance cost is high easily because of the problems of more tail end branches, unstable pressure and lubricating oil return in the running process of a unit; the second type of products are cooled by using a secondary heat exchange water cooling mode, so that on one hand, the energy efficiency of the products is reduced by the secondary heat exchange, and on the other hand, the products can only realize the refrigeration function on zero because water is taken as a secondary refrigerant; the third type of product uses thermoelectric refrigeration, the principle of thermoelectric refrigeration is that two different semiconductor materials (P type and N type) are connected in series to form a P-N junction, when direct current is conducted in the P-N junction, the semiconductor refrigeration sheet can generate refrigeration and heating effects due to the heat absorption or heat release effects of electrons and holes in the two materials in the process of moving in the cross-domain P-N junction, namely Peltier effect, the two junctions can generate heat absorption and heat release phenomena respectively, the heat absorption end is called cold end, the heat release end is called hot end, and the cold end can be used for refrigeration. The thermoelectric refrigeration has the advantages of low cost, simplicity, no moving parts, convenient operation and maintenance and the like, but the heat dissipation problem of the hot end can limit the energy efficiency. Based on analysis of the prior art, the problems of high cost or low efficiency and the like of similar products can be known, and the ventilation problem of special fruit and vegetable products in fresh goods is not considered in the design of all products.
Graphene is a honeycomb single-layer carbon material with ultra-large specific surface area, good thermal and chemical stability and ultra-high thermal conductivity. The graphene with the ultrahigh thermal conductivity covered on the hot end is used for strengthening the heat radiation capability of the thermoelectric refrigeration hot end, can improve thermoelectric refrigeration efficiency and meets the different temperature requirements of refrigeration and freezing.
For fruit and vegetable products, the fruit and vegetable products are different from other fresh products. The fruits and vegetables are still independent living bodies in the storage process, have physiological activities such as respiration, ethylene and the like, and if harmful substances such as carbon dioxide, ethylene and the like which are continuously generated by the fruits and vegetables cannot be timely ventilated and ventilated, the post-ripening and aging of the fruits and vegetables are easy to accelerate.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an energy-saving fresh-keeping logistics storage cabinet based on a cold chain terminal district, which can realize the ventilation function of special fruit and vegetable products in fresh-keeping products through tunnel wind, realize the refrigeration and freezing requirements of the storage cabinet through solar thermoelectric refrigeration, and realize the intensified heat dissipation problem of a thermoelectric refrigeration hot end through tunnel wind and graphene.
The invention realizes the above purpose through the following technical scheme: the energy-saving fresh logistics preservation cabinet based on the cold chain terminal cell comprises a preservation cabinet body composed of a box body, wherein a solar thermoelectric refrigerating system is arranged on the preservation cabinet body, and the preservation cabinet body is connected with a tunnel ventilation system;
the solar thermoelectric refrigerating system comprises a solar panel capable of converting solar energy into electric energy, wherein the solar panel is electrically connected with a thermoelectric refrigerating sheet which consists of a P-type semiconductor and an N-type semiconductor and is provided with a cold end capable of generating cold energy, and the other side of the thermoelectric refrigerating sheet is provided with a graphene coating hot end capable of generating heat;
the tunnel air exchanging system comprises an air supply pipe communicated with each box body, wherein the air supply pipe is connected with one end of a tunnel pipe positioned under the ground, and the other end of the tunnel pipe is connected with a fresh air port communicated with the outside.
Further, a first air valve for fresh-keeping ventilation of fruits and vegetables and a second air valve for heat dissipation of a thermoelectric refrigerating hot end are arranged at the top end of each box body in parallel; the first air valve and the second air valve are communicated with each other in the air supply pipe.
Further, the thermoelectric cooling piece is embedded behind the box body;
further, the cold end is positioned on the inner wall of the thermoelectric cooling sheet, and the hot end of the graphene-coated layer is positioned on the outer wall of the thermoelectric cooling sheet;
further, the cold end surface is provided with cold end fins, and the hot end surface is provided with hot end fins.
Further, a fan arranged on the hot end is arranged in the middle of the hot end fin.
Further, an air supply port is formed in each box body, and a first air valve is arranged on each air supply port.
Further, a fan capable of supplying air to the air supply pipe is arranged in the tunnel pipe.
Further, each box body is provided with a temperature sensor, a third air valve and a ventilation shutter matched with the third air valve.
Further, a storage insulation box for recycling the waste ice bags in the cold chain process is arranged on one side of the preservation cabinet body. The insulation box is attached to surround the outer side of the air supply pipe.
The beneficial effects of the invention are as follows: the preservation cabinet adopts solar energy to drive thermoelectric refrigeration, and the solar energy has the advantages of environmental protection, cleanness, low price, reproducibility and the like, and does not need filling and pouring refrigerant; meanwhile, in order to solve the problem of heat dissipation of a thermoelectric refrigerating hot end, ground wind and a graphene layer are introduced to strengthen heat dissipation; for fresh fruit and vegetable products, ventilation is performed by using the tunnel wind with proper annual temperature, so that the concentration of carbon dioxide and ethylene can be reduced, the fresh-keeping effect of the fruits and vegetables can be improved, and the preservation cabinet has the characteristics of energy conservation, environmental protection and the like.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a single box structure of the present invention;
FIG. 3 is a schematic cross-sectional view of a single case of the present invention;
in the figure: 1. the preservation cabinet body, 2, a fresh air port, 3, a tunnel pipe, 4, an air supply pipe, 5, an air supply port, 6, a first air valve, 7, a cold end, 8, a second air valve, 9, a ventilation shutter, 10, a third air valve, 11, a temperature sensor, 12, a storage box, 13, a solar power generation plate, 14, a fan, 15, a cold end fin, 16, a thermoelectric refrigerating sheet, 17, a graphene coating hot end, 18, a fan, 19, a hot end fin, 20 and a box body.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1: the utility model provides an energy-conserving fresh logistics preservation cabinet based on cold chain terminal district, includes preservation cabinet body 1, install a plurality of boxes 20 on the preservation cabinet body 1, the box 20 level is arranged on preservation cabinet body 1. The preservation cabinet body 1 is provided with a solar thermoelectric refrigerating system, and the preservation cabinet body 1 is connected with a tunnel ventilation system.
The solar thermoelectric refrigeration system comprises a solar panel 13 which is positioned at the top of the preservation cabinet body 1 and can convert solar energy into electric energy, direct current generated by the solar panel 13 supplies power to a thermoelectric refrigeration sheet (a circuit consisting of P-type and N-type semiconductors) 16, cold energy is generated at a cold end 7 of one side of the thermoelectric refrigeration sheet 16, and heat is generated at a hot end 17 of the graphene-coated layer on the other side of the thermoelectric refrigeration sheet 16, as shown in fig. 2 and 3. The cold end 7 is provided with a cold end fin 15 on the surface, the hot end 17 of the graphene coating is provided with a hot end fin 19 on the surface, and a fan 18 arranged on the hot end 16 is arranged in the middle of the hot end fin 19.
The tunnel air exchanging system comprises an air supply pipe 4 communicated with each box body 20, one end of a tunnel pipe 3 positioned under the ground is connected with the air supply pipe 4, and the other end of the tunnel pipe 3 is connected with a fresh air port 2 communicated with the outside. A fan 14 which can supply air to the air supply pipe 4 is arranged in the tunnel pipe 3.
The top end of each box body 20 is provided with a first air valve 6 for fresh-keeping and ventilation of fruits and vegetables and a second air valve 8 for heat dissipation of a thermoelectric refrigerating hot end in parallel; the first air valve 6 and the second air valve 8 are communicated with the air supply pipe 4. An air supply port 5 is arranged on each box body 20, and a first air valve 6 is arranged on each air supply port 5. Each box body 20 is provided with a temperature sensor (model: PT 100) 11, a third air valve 10 and a ventilation shutter 9 matched with the third air valve 10.
A storage incubator 12 for recovering the waste ice bags in the cold chain process is arranged on one side of the preservation cabinet body 1. The insulation box is attached to surround the outer side of the air supply pipe 4.
Examples:
because the living fresh variety of district resident purchase is random, the cupboard quantity that needs refrigeration or fruit vegetables to take a breath is also random, all the demands can be satisfied to this design all boxes, take a box as an example, to working process and principle expansion explanation.
When fruits and vegetables are stored in the box 20, the ventilation times are set to be 4-6 times/hour according to the types of the fruits and vegetables. In the ventilation stage, the fan 14 with the frequency conversion function is started, the first air valve 6 and the third air valve 10 are opened, fresh air is sucked into the tunnel pipe 3, the air supply pipe 4, the first air valve 6 and the air supply port 5 through the fresh air port 2 and is sent into the box body 20, and meanwhile, redundant air in the box body is discharged out of the box body through the ventilation louver 9, so that the ventilation requirement is finished.
The non-ventilation stage, namely the fruit and vegetable cooling stage or the non-fruit and vegetable fresh-keeping freezing and refrigerating stage, and when the temperature measured by the temperature sensor 11 is higher than the set refrigerating and freezing temperature, the temperature enters the cooling stage. At this time, the fan 14 with the frequency conversion function is turned on, the second damper 8 is turned on, and the first damper 6 and the third damper 10 are turned off. The thermoelectric refrigeration is driven by the solar power generation plate 13 to electrify and drive the thermoelectric refrigeration sheet 16 to refrigerate, the goods in the box body 20 are continuously refrigerated and cooled at the cold end 7, and meanwhile, heat is continuously released at the hot end 17 coated with the graphene coating; fresh air is sucked into the tunnel through the fresh air inlet 2 for cooling (summer), then is further cooled through the storage box 12 and the ice bag therein and then is sent to the upper parts of thermoelectric refrigerating hot end fins 19 through the air supply pipe 4 and the second valve 8, and the heat dissipation of the hot end is enhanced under the combined action of the fan 18 and the graphene super-strong heat conduction coating, so that the refrigerating and cooling requirements are completed.
Wherein, the cold and heat sources of the tunnel pipe use the heat storage (cold) property of the natural stratum. In summer, outdoor air enters the tunnel, and the aim of cooling can be achieved through heat transfer with the wall surface of the tunnel; in winter, the temperature of the outdoor air is increased by heat transfer between the tunnel and the air, so that the fruits and vegetables can be prevented from being frozen. Has the advantages of low engineering cost, obvious economic benefit and energy-saving effect.
The above examples are provided for convenience of description of the present invention and are not to be construed as limiting the invention in any way, and any person skilled in the art will make partial changes or modifications to the invention by using the disclosed technical content without departing from the technical features of the invention.
Claims (7)
1. The utility model provides an energy-conserving fresh commodity circulation preserves cabinet based on cold chain terminal district, includes by cabinet body (1) of preserving that box (20) are constituteed, its characterized in that: the preservation cabinet body (1) is provided with a solar thermoelectric refrigerating system, and the preservation cabinet body (1) is connected with a tunnel ventilation system;
the solar thermoelectric refrigerating system comprises a solar panel (13) capable of converting solar energy into electric energy, and a thermoelectric refrigerating sheet (16) which is electrically connected with a circuit formed by P-type semiconductors and N-type semiconductors, wherein one side of the thermoelectric refrigerating sheet (16) is a cold end (7) capable of generating cold energy, and the other side of the thermoelectric refrigerating sheet (16) is a graphene coating hot end (17) capable of generating heat;
the tunnel air exchanging system comprises an air supply pipe (4) communicated with each box body (20), wherein the air supply pipe (4) is connected with one end of a tunnel pipe (3) positioned under the ground, and the other end of the tunnel pipe (3) is connected with a fresh air port (2) communicated with the outside;
a first air valve (6) for fresh-keeping and ventilation of fruits and vegetables and a second air valve (8) for heat dissipation of a thermoelectric refrigerating hot end are arranged at the top end of each box body (20) in parallel; the first air valve (6) and the second air valve (8) are communicated with each other in the air supply pipe (4);
the thermoelectric cooling piece (16) is embedded behind the box body (20);
the storage cabinet is characterized in that a storage insulation box (12) for recycling waste ice bags in the cold chain process is arranged on one side of the storage cabinet body (1), and the insulation box (12) is attached to and surrounds the outer side of the air supply pipe (4).
2. The energy-saving fresh logistics storage cabinet based on cold chain terminal cells of claim 1, wherein: the cold end (7) is positioned on the inner wall of the thermoelectric cooling sheet (16), and the graphene coating hot end (17) is positioned on the outer wall of the thermoelectric cooling sheet (16).
3. The energy-saving fresh logistics storage cabinet based on cold chain terminal cells of claim 2, wherein: the cold end (7) surface is provided with a cold end fin (15), and the hot end (17) surface of the graphene coating is provided with a hot end fin (19).
4. An energy-saving fresh logistics storage cabinet based on cold chain terminal cells as claimed in claim 3, wherein: a fan (18) arranged on the graphene coating hot end (17) is arranged in the middle of the hot end fin (19).
5. The energy-saving fresh logistics storage cabinet based on cold chain terminal cells of claim 2, wherein: an air supply opening (5) is formed in each box body (20), and a first air valve (6) is arranged on each air supply opening (5).
6. The energy-saving fresh logistics storage cabinet based on cold chain terminal cells of claim 1, wherein: a fan (14) capable of supplying air to the air supply pipe (4) is arranged in the tunnel pipe (3).
7. The energy-saving fresh logistics storage cabinet based on cold chain terminal cells of claim 1, wherein: each box body (20) is provided with a temperature sensor (11), a third air valve (10) and a ventilation shutter (9) matched with the third air valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810629965.5A CN108981269B (en) | 2018-06-19 | 2018-06-19 | Energy-saving fresh logistics preservation cabinet based on cold chain terminal district |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810629965.5A CN108981269B (en) | 2018-06-19 | 2018-06-19 | Energy-saving fresh logistics preservation cabinet based on cold chain terminal district |
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| CN108981269A CN108981269A (en) | 2018-12-11 |
| CN108981269B true CN108981269B (en) | 2023-09-15 |
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| CN110056684B (en) * | 2019-04-24 | 2021-04-16 | 宿迁海沁节能科技有限公司 | Valve for blocking back flow of heat and cold of semiconductor thermoelectric refrigeration |
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