CN110422497B - Refrigerated container and cold-inducing and heat-dissipating device - Google Patents

Abstract

The invention discloses a refrigerated container and a cold-guiding and heat-dissipating device, the refrigerated container comprises a refrigerator, a refrigerated warehouse and the cold-guiding and heat-dissipating device, the refrigerator provides cold for the refrigerated warehouse, the cold-guiding and heat-dissipating device comprises a circulating water tank, a water cooling unit and a water delivery pipeline, the circulating water tank and the water cooling unit respectively keep heat exchange with the refrigerated warehouse, after the water delivery pipeline is communicated with the circulating water tank and the water cooling unit, two ends respectively penetrate through a heat preservation layer of the refrigerated warehouse and then are connected with a cooling object outside the refrigerated warehouse, and cooling water in the water delivery pipeline circularly flows through the circulating water tank, the water cooling unit and the cooling object. The refrigerated container directly utilizes the cold source of the refrigerated warehouse to cool, on one hand, the utilization rate of the cold source cold quantity in the refrigerated warehouse is improved, the energy utilization efficiency is high, on the other hand, the cooling object is not in direct thermal contact with the refrigerated warehouse to avoid disordered and uncontrolled heat exchange, the priority order of controlled cold quantity utilization is formed, and the cold quantity requirement and the refrigeration performance required by the refrigerated warehouse for goods refrigeration are preferentially ensured.

Description

Refrigerated containers and cooling and heat dissipation devices

Technical field

The present invention relates to the technical field of refrigerated containers, and in particular to a refrigerated container and a cooling and heat dissipation device.

Background technique

A refrigerated container is a special container that has good heat insulation and can maintain certain low temperature requirements, and is suitable for the transportation and storage of various types of perishable food. Existing refrigerated containers generally use diesel-driven refrigeration. The diesel tank provides diesel fuel for the diesel generator. The diesel generator generates electricity to supply the electric energy required by the refrigerator. The refrigerator provides cooling capacity to keep the goods in the container in a low-temperature refrigerated state. .

The industry is concerned about how to avoid the risk of diesel flash ignition when refrigerated containers pass through high-temperature areas and the risk of diesel solidification when passing through cold areas. There is a lack of research on how to improve the energy utilization efficiency of refrigerated containers, and the energy utilization efficiency is low. . In particular, refrigerated containers used for railway cold chain transportation have the characteristics of long transportation mileage and changeable transportation environment, and the aforementioned problems are more significant.

Contents of the invention

In order to overcome the shortcomings of the existing technology, the present invention provides a refrigerated container and a cooling and heat dissipation device, which directly uses the cold source of the refrigerated warehouse to dissipate and cool the cooling objects outside the warehouse, thereby ensuring the refrigeration performance of the refrigerated warehouse while improving the improve energy efficiency.

The cooling and heat dissipation device provided by the invention includes a refrigerator, a refrigerated warehouse and a cooling and heat dissipation device. The refrigerator provides cold energy for the refrigerated warehouse. The cold and heat dissipation device includes a circulating water tank, a water cooling unit and a transmission unit. Water pipeline, the circulating water tank and the water-cooling unit maintain heat exchange with the refrigerated warehouse respectively. After the water delivery pipeline connects the circulating water tank and the water-cooling unit, both ends of the water pipeline penetrate out of the refrigerated warehouse respectively. The insulation layer is connected to the cooling object outside the refrigerated warehouse, and the cooling water in the water pipeline circulates through the circulating water tank, the water cooling unit and the cooling object.

Exemplarily, the circulating water tank is disposed on the side of the insulation layer facing the refrigerated warehouse; further, the circulating water tank is embedded in the insulation layer from this side of the insulation layer and is connected with the insulation layer. The refrigerated warehouse remains connected; further, the insulation layer is a foaming layer, and the circulating water tank is embedded in the insulation layer before the insulation layer is foamed.

Exemplarily, the water-cooling unit is disposed on the side of the insulation layer facing the refrigerated warehouse; further, the water-cooling unit is embedded in the insulation layer from this side of the insulation layer and is connected with the insulation layer. The refrigerated warehouse remains connected; further, the insulation layer is a foaming layer, and the water-cooling unit is embedded in the insulation layer before the insulation layer is foamed.

Exemplarily, the water pipeline is buried in the insulation layer and both ends penetrate the insulation layer. The water pipeline is kept isolated from the refrigerated warehouse; further, the insulation layer is made of foam. layer, the insulation layer is pre-buried the water pipeline before foaming and isolates the water pipeline from the refrigerated warehouse after foaming.

The refrigerated container provided by the present invention includes a refrigerator, a refrigerated warehouse and any of the above-mentioned cooling and heat dissipation devices.

Exemplarily, the refrigerated container has the refrigerated warehouse and the external cavity of the warehouse inside. The refrigerated cargo warehouse and the external cavity of the warehouse are isolated by the insulation layer of the refrigerated cargo warehouse. The cooling object is arranged on the Inside the outer cavity of the warehouse.

Exemplarily, the insulation layer isolated between the refrigerated warehouse and the warehouse outer cavity is a flat insulation wall, and the refrigerator is also disposed in the warehouse outer cavity; further, the refrigerator penetrates The flat thermal insulation wall is connected to the refrigerated warehouse behind, and maintains thermal isolation between the refrigerated warehouse and the outer cavity of the warehouse; further, the flat thermal insulation wall is formed by one-time foaming, and the flat thermal insulation wall Both sides of the surface are flat.

Exemplarily, the cooling object is a lithium battery, and the lithium battery is electrically connected to a refrigerator of the refrigerated container.

One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

A cooling and heat dissipation device is installed in the refrigerated container. The circulating water tank and water cooling unit maintain heat exchange with the refrigerated warehouse and can directly absorb the redundant cooling capacity of the refrigerated warehouse. Both ends of the water pipeline are connected outside the refrigerated warehouse. Cooling objects (such as lithium batteries and other heat-generating components outside the warehouse) form a cooling cycle, so that redundant cold energy is transferred to the cooling objects under control to achieve the purpose of heat dissipation and cooling. On the one hand, it increases the cold source cooling capacity in the refrigerated warehouse. The utilization rate and energy utilization efficiency are high. On the other hand, there is no direct thermal contact between the cooling object and the refrigerated warehouse, which avoids disordered and out-of-control heat exchange. It forms a controlled priority sequence of cold energy utilization, giving priority to ensuring that the goods in the refrigerated warehouse are refrigerated. The required cooling capacity demand and refrigeration performance, thirdly, there is no need to set up additional radiators, effectively reducing the required cooling power.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic front cross-sectional view of the first structure of a cooling and heat dissipation device provided by an embodiment of the present invention;

Figure 2 is a schematic right cross-sectional view of the cooling and heat dissipation device in Figure 1;

Figure 3 is a schematic front cross-sectional view of the second structure of the cooling and heat dissipation device provided by the embodiment of the present invention;

Figure 4 is a schematic right cross-sectional view of the cooling and heat dissipation device in Figure 3;

Figure 5 is a schematic structural diagram of a refrigerated container provided by an embodiment of the present invention.

Description of main component symbols:

1-cooling and heat dissipation device, 11-circulating water tank, 12-water cooling unit, 13-water pipeline, 2-refrigeration machine, 3-refrigerated warehouse, 31-flat insulation wall, 4-warehouse outer cavity, 5-lithium battery .

Detailed ways

It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may also be intervening elements present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right" and similar expressions are used herein for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which the invention belongs. The terminology used herein is for the purpose of describing specific embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

This embodiment discloses a specific structure of the induced cooling and heat dissipation device 1. Please refer to Figures 1-4. The induced cooling and heat dissipation device 1 includes a circulating water tank 11, a water cooling unit 12 and a water delivery pipeline 13, and directly utilizes the refrigerated warehouse 3 The cold source dissipates heat to the cooling objects outside the warehouse, thereby ensuring the refrigeration performance of the refrigerated warehouse 3 while improving energy utilization efficiency.

Among them, the circulating water tank 11 and the water cooling unit 12 maintain heat exchange with the refrigerated warehouse 3 of the refrigerated container respectively, ensuring that the circulating water tank 11 and the water cooling unit 12 can directly absorb cold energy from the refrigerated warehouse 3 respectively. The circulating water tank 11 stores cooling water used in the cooling cycle, and the water cooling unit 12 is used to cool the cooling water and provide power for the cooling water circulation.

After the water pipeline 13 connects the circulating water tank 11 and the water-cooling unit 12, both ends penetrate the insulation layer of the refrigerated warehouse 3 and then connect to the cooling object outside the refrigerated warehouse 3, so that the cooling water in the water pipeline 13 flows through the cooling object. Realize heat dissipation and cooling of cooling objects. Driven by the circulating power (such as pump power) of the water-cooling unit 12, the cooling water in the water pipeline 13 circulates through the circulating water tank 11, the water-cooling unit 12 and the cooling object. It can be understood that the water pipeline 13 includes several pipe sections, one of which is connected to the circulating water tank 11 and the water cooling unit 12 at both ends, and the other pipe section penetrates the insulation layer of the refrigerated warehouse 3 and is connected to the circulating water tank 11 and the cooling object at both ends. , another pipe section penetrates the insulation layer of the refrigerated warehouse 3 and connects the water cooling unit 12 and the cooling object at both ends.

The circulating water tank 11 and the water-cooling unit 12 respectively absorb cold energy from the cold source of the refrigerated warehouse 3 to cool the cooling water flowing through the circulating water tank 11 in the water-cooling unit 12 to keep the cooling water at a low temperature; then, the circulating power of the water-cooling unit 12 When driven, the cooling water flows through the cooling object through the water delivery pipeline 13, transferring the cold energy to the cooling object, causing the temperature of the cooling object to drop, and achieving the purpose of heat dissipation.

First, the redundant cold energy in the refrigerated warehouse 3 is transferred to the cooling object in a controlled manner through the cooling device 1, effectively improving the cold source utilization and energy utilization efficiency in the refrigerated warehouse 3, and controlling Accurate; secondly, there is no direct thermal contact between the cooling object and the refrigerated warehouse 3, which avoids disordered exchange of heat energy, forms a controlled priority sequence of cold energy utilization, and gives priority to ensuring the cooling capacity required for the refrigeration of goods in the refrigerated warehouse 3. and refrigeration performance, without affecting the purpose of refrigeration while improving energy utilization; thirdly, only the water pipeline 13 penetrates the insulation layer of the refrigerated warehouse 3 to avoid heat dissipation of the refrigerated warehouse 3 and ensure the refrigeration effect.

In an actual application example, the cooling power of the cooling device 1 is only 750W; as a comparison, an additional radiator is provided to dissipate heat for cooling objects such as lithium batteries. If it is necessary to achieve the heat dissipation performance required for lithium batteries, the heat dissipation The cooling power of the machine is as high as 7500W, and there is a huge difference in energy consumption between the two.

Exemplarily, the circulating water tank 11 is provided on the side of the insulation layer of the refrigerated warehouse 3 facing the refrigerated warehouse 3 . For example, the circulating water tank 11 is maintained on this side surface of the insulation layer and is kept isolated from the cooling object.

Please refer to FIGS. 1-2 . Exemplarily, the circulating water tank 11 is embedded in the insulation layer from this side of the insulation layer and remains connected to the refrigerated warehouse 3 . For example, the circulating water tank 11 is at least partially located within the insulation layer, and at least one side of the circulating water tank 11 remains exposed to contact the refrigerated warehouse 3 . This structure will not reduce the cargo capacity of the refrigerated cargo warehouse 3, and can ensure the absorption of cold energy. Furthermore, the thermal insulation layer is a foaming layer, and the circulating water tank 11 is embedded in the thermal insulation layer before foaming. Please refer to Figure 3-4 for another example. The circulating water tank 11 is disposed on the side surface of the insulation layer.

Please refer to Figures 1-4. Exemplarily, the water-cooling unit 12 is disposed on the side of the insulation layer of the refrigerated warehouse 3 facing the refrigerated warehouse 3. For example, the water cooling unit 12 is maintained on the side surface of the insulation layer and is isolated from the cooling object.

Please refer to FIGS. 1-2 . Exemplarily, the water-cooling unit 12 is embedded in the insulation layer from this side of the insulation layer and remains connected to the refrigerated warehouse 3 . For example, the water-cooling unit 12 is at least partially located within the insulation layer, and at least one side of the water-cooling unit 12 remains exposed to contact the refrigerated warehouse 3 . This structure will not reduce the cargo capacity of the refrigerated cargo warehouse 3, and can ensure the absorption of cold energy. Furthermore, the thermal insulation layer is a foaming layer, and the water cooling unit 12 is embedded in the thermal insulation layer before foaming. Please refer to Figure 3-4 for another example. The water cooling unit 12 is disposed on the side surface of the insulation layer.

Please refer to FIGS. 1-2 . As an example, the water pipeline 13 is buried in the insulation layer and both ends of the water pipeline 13 penetrate the insulation layer. The water pipeline 13 is kept isolated from the refrigerated warehouse 3 . For example, in the water pipeline 13, the pipe section used to connect the circulating water tank 11 and the water-cooling unit 12 is buried in the insulation layer, the pipe section used to connect the circulating water tank 11 and the cooling object, and the pipe section used to connect the water-cooling unit 12 are all buried at one end. Inside the insulation layer and the other end penetrates the insulation layer.

Furthermore, the insulation layer is a foaming layer, which embeds the water pipeline 13 before foaming and isolates the water pipeline 13 from the refrigerated warehouse 3 after foaming. Please refer to Figure 3-4 for another example. The water pipeline 13 is partially located in the refrigerated warehouse 3, and this part of the pipe section is located outside the insulation layer. At the same time, both ends of the water pipeline 13 penetrate the insulation layer and are connected to the cooling on the object.

It should be noted that the water cooling unit 12 in this embodiment is installed vertically. When the water-cooling unit 12 is installed in place, the water flow in the water-cooling unit 12 flows in the vertical direction, and the circulating water pump of the water-cooling unit 12 is located at the lowest part of the water-cooling unit 12 . This setting prevents air from accumulating and thus preventing the circulating water pump from operating abnormally. On the contrary, when a water-cooling unit is used to cool lithium batteries in a car, the water-cooling unit can only be installed horizontally; if it is forcibly installed vertically, the air inlet or outlet of the water-cooling unit will be affected, causing the lithium battery to be unable to be cooled.

Please refer to Figures 1-5. This embodiment also discloses a specific structure of a refrigerated container. The refrigerated container includes a refrigerator 2, a refrigerated warehouse 3 and a cooling and heat dissipation device 1 disclosed in this embodiment, and has ideal energy. Utilization. Exemplarily, the refrigerated container uses lithium battery 5 to replace the diesel fuel tank and diesel generator. The lithium battery 5 is electrically connected to the refrigerator 2 to provide the refrigerator 2 with the electrical energy required for refrigeration work.

The refrigerated container is powered by lithium batteries 5 and does not need to be equipped with a diesel fuel tank. This completely avoids the risk of high-temperature flash ignition and low-temperature solidification of diesel, allowing the refrigerator 2 to work normally in various terrain environments and ensuring the safety of the refrigerated warehouse 3. The effect of refrigerated transportation in all regions is to prevent accidental deterioration and damage of goods. When it is applied to railway cold chain transportation, it completely matches the characteristics of long mileage and spanning multiple temperature environment areas of railway transportation, and the use effect is particularly significant.

At the same time, the cooling object of the cooling and heat dissipation device 1 is the lithium battery 5 . The cooling device 1 uses the cold source of the refrigerated warehouse 3 to quickly dissipate the heat of the lithium battery 5, keeping the lithium battery 5 at an ideal operating temperature, reducing the heat loss of the lithium battery 5, improving the power supply efficiency of the lithium battery 5, and overcoming the problem of Lithium battery 5 may have the defect of generating a large amount of heat and causing performance loss.

Exemplarily, the refrigerated container has a refrigerated warehouse 3 and an outer cavity 4 inside the warehouse. Among them, the refrigerated warehouse 3 and the outer cavity 4 of the warehouse are isolated by the insulation layer of the refrigerated warehouse 3, and the cooling object is arranged in the outer cavity 4 of the warehouse. For example, the lithium battery 5 is installed in the outer cavity 4 of the warehouse.

Exemplarily, the insulation layer isolated between the refrigerated warehouse 3 and the warehouse outer cavity 4 is a flat insulation wall 31 , and the refrigerator 2 is also disposed in the warehouse outer cavity 4 . Among them, both sides of the flat plate insulation wall 31 are flat. Under this simple structure, the flat insulation wall 31 can be foamed in one step, eliminating the need for multiple foamings to reduce the complexity and cost of the manufacturing process. The sides of the refrigerated warehouse 3 can be continuously smooth and tight to ensure the safety of the refrigerated warehouse 3. Sealing, thereby ensuring good refrigeration performance.

Exemplarily, the refrigerator 2 penetrates through the flat insulation wall 31 and is connected to the refrigerated warehouse 3, thereby maintaining thermal isolation between the refrigerated warehouse 3 and the outer cavity 4 of the warehouse. For example, there is a through hole in the flat insulation wall 31; the main body of the refrigerator 2 is located in the outer cavity 4 of the warehouse, and the cooling end of the refrigerator 2 penetrates through the through hole and is connected to the refrigerated warehouse 3, so that the generated cold energy is directly transmitted to the refrigerated warehouse 3; at the same time, one end of the through hole connected to the outer cavity 4 of the warehouse is closed by the refrigerator 2 to prevent the heat loss of the refrigerated warehouse 3 and ensure the refrigeration performance of the refrigerated warehouse 3.

Exemplarily, both the refrigerated warehouse 3 and the warehouse outer cavity 4 have a hexahedral structure.

Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to examples, those of ordinary skill in the art will understand that the technical solutions of the present invention can be carried out. Modifications or equivalent substitutions without departing from the spirit and scope of the technical solution of the present invention shall be included in the scope of the claims of the present invention.

Claims (10)

1. The refrigerating container is characterized by comprising a refrigerator, a refrigerating warehouse and a cold-guiding and heat-radiating device, wherein the refrigerator provides cold for the refrigerating warehouse, the cold-guiding and heat-radiating device comprises a circulating water tank, a water cooling unit and a water conveying pipeline, the circulating water tank and the water cooling unit are respectively in heat exchange with the refrigerating warehouse, the water conveying pipeline is communicated with the circulating water tank and the water cooling unit, two ends of the water conveying pipeline respectively penetrate through a heat preservation layer of the refrigerating warehouse and then are connected with a cooling object outside the refrigerating warehouse, and cooling water in the water conveying pipeline circularly flows through the circulating water tank, the water cooling unit and the cooling object.

2. The refrigerated container of claim 1 wherein the circulating water tank is disposed on a side of the insulation facing the refrigerated cargo compartment; the circulating water tank is embedded into the heat preservation layer from the side of the heat preservation layer and is communicated with the refrigerating warehouse; the heat preservation is the foaming layer, the circulation water tank is embedded in before the foaming of heat preservation the heat preservation.

3. The refrigerated container of claim 1 wherein the water chiller is disposed on a side of the insulation facing the refrigerated cargo compartment; the water cooling unit is embedded into the heat preservation layer from the side of the heat preservation layer and is communicated with the refrigerating warehouse; the heat-insulating layer is a foaming layer, and the water cooling unit is embedded in the heat-insulating layer before the heat-insulating layer is foamed.

4. A refrigerated container as claimed in claim 1 wherein the water conduit is embedded in the insulating layer and extends through the insulating layer at both ends, the water conduit being kept separate from the refrigerated warehouse; the heat preservation layer is a foaming layer, and the heat preservation layer is pre-buried in the water conveying pipeline before foaming and enables the water conveying pipeline to be isolated from the refrigerating warehouse after foaming.

5. The refrigerated container of claim 1 wherein the refrigerated container has the refrigerated cargo compartment and an off-board cavity therein, the refrigerated cargo compartment and the off-board cavity being separated by a thermal insulation of the refrigerated cargo compartment, the cooling target being disposed within the off-board cavity.

6. The refrigerated container of claim 5 wherein the insulating layer isolated between the refrigerated cargo compartment and the compartment external cavity is a flat insulating wall, the refrigerator also being disposed within the compartment external cavity; the refrigerator penetrates through the flat heat-insulating wall and then is communicated with the refrigerating warehouse, and the refrigerating warehouse is kept in heat insulation isolation with the warehouse outer cavity; the flat heat-insulating wall is formed by one-step foaming, and the surfaces of the two sides of the flat heat-insulating wall are all planes.

7. The refrigerated container of any of claims 1-6 wherein the cooling object is a lithium battery electrically connected to a refrigerator of the refrigerated container; the refrigerated container is used for railway cold chain transportation.

8. The cooling heat dissipation device is characterized by comprising a circulating water tank, a water cooling unit and a water conveying pipeline, wherein the water conveying pipeline is used for connecting the circulating water tank with the water cooling unit, the circulating water tank and the water cooling unit respectively keep heat exchange with a refrigerated warehouse of a refrigerated container, two ends of the water conveying pipeline respectively penetrate through a heat preservation layer of the refrigerated warehouse and then are connected with a cooling object outside the refrigerated warehouse, and cooling water in the water conveying pipeline circularly flows through the circulating water tank, the water cooling unit and the cooling object.

9. The cold-inducing and heat-dissipating device of claim 8, wherein the circulating water tank is disposed on a side of the insulating layer facing the refrigerated warehouse; the circulating water tank is embedded into the heat preservation layer from the side of the heat preservation layer and is communicated with the refrigerating warehouse; the heat-insulating layer is a foaming layer, and the circulating water tank is embedded in the heat-insulating layer before the heat-insulating layer is foamed;

and/or the water cooling unit is arranged on one side of the heat preservation layer facing the refrigerated warehouse; the water cooling unit is embedded into the heat preservation layer from the side of the heat preservation layer and is communicated with the refrigerating warehouse; the heat-insulating layer is a foaming layer, and the water cooling unit is embedded in the heat-insulating layer before the heat-insulating layer is foamed.

10. The cold-inducing and heat-dissipating device according to claim 8, wherein the water pipe is buried in the heat-insulating layer and both ends of the water pipe penetrate through the heat-insulating layer, and the water pipe is kept isolated from the refrigerated warehouse; the heat preservation layer is a foaming layer, and the heat preservation layer is pre-buried in the water conveying pipeline before foaming and enables the water conveying pipeline to be isolated from the refrigerating warehouse after foaming.