KR20210070772A - Reefer Container - Google Patents

Abstract

The present invention relates to a reefer container which comprises: a heat insulating panel which forms an inner space with at least one opened side and to which vacuum is at least partially applied; a refrigeration device coupled to the opened side and configured to cool the inner space surrounded by the heat insulating panel; and a battery which supplies power to the refrigeration device. The refrigeration device comprises: a housing of which an inlet port through which air of the inner space is introduced is formed on an upper side and an outlet port for transmitting air into the inner space is formed on a lower side; a suction fan provided on an upper side in the housing; and an evaporator provided on a lower side of the suction fan in the housing. The housing includes: a wide flow path part in which the suction fan and the evaporator are disposed; a flow path reducing part having a flow path which is gradually reduced at a lower side of the evaporator; and a narrow flow path part extending from a lower side of the flow path reducing part to the outlet port and having a constant flow path. The evaporator is arranged in parallel to a rotation surface of the suction fan. In accordance with the present invention, a space that is occupied by the refrigeration device can be optimized.

Description

Refrigeration Container {Refer Container}

The present invention relates to a refrigeration container.

Containers are generally classified into containers for loading and transport used for loading and transporting things, and containers for houses used for simple offices at construction sites.

In particular, a container for loading and transport is a box-type container used to transport cargo efficiently and economically, and is designed to enable rapid unloading, use repeatedly, and facilitate contact between different types of transport. It is a large cargo container.

These containers are divided into several types according to their uses and purposes, among which refrigerated or frozen containers (generally referred to as reefer containers, hereinafter referred to as reefer containers) are specially manufactured using insulation materials for thermal insulation and cooling. It is a container that can freeze and refrigerate agricultural and fishery products, livestock products, processed foods, flowers, and chemical medicines by installing a refrigeration device in the container.

The container is loaded and transported on a trailer, a freight car of a freight car, a train or a ship.

Therefore, in such a container, it is important to increase the thermal insulation effect, so that the container is provided with a thermal insulation material to maintain the state of the goods stored therein during long-distance shipment.

In the conventional refrigerating container, a separate refrigerating device is installed for internal temperature control, and urethane foam is installed on the inner wall of the container to secure thermal insulation performance.

However, the conventional refrigeration container requires an external power supply through an electric wire to operate the refrigeration system during cargo transportation, so the operation procedure is complicated. there is

In addition, since the refrigerating device of the refrigerating container is installed therein, there is a problem that the loading capacity is relatively reduced.

Accordingly, various studies and developments are currently being made in order to solve the above problems and to improve the refrigeration capacity/performance while maximizing the profit of transportation.

The present invention was created to solve the problems of the prior art as described above, and an object of the present invention is to numerically optimize the arrangement of the suction fan, the evaporator, etc. of the refrigerating device, and the width and inclination of the structure of the cold air flow path. It is to provide a refrigeration container that allows for increased refrigeration capacity/performance without increasing the space occupied by the device.

In addition, an object of the present invention is to provide a refrigeration container in which a battery for operating a refrigeration device is installed, but the battery is radiated using cold air to realize self-cooling without an external power source and to not separately provide a battery cooling system will do

A refrigerating container according to an aspect of the present invention comprises: an insulation panel to which at least one side is open, and at least partially to which a vacuum is applied; a refrigerating device coupled to an open side and cooling the inner space surrounded by the heat insulating panel; and a battery for supplying electric power to the refrigerating device, wherein the refrigerating device includes: a housing having an inlet through which air of the inner space is introduced at an upper side and an outlet through which air is delivered to the inner space at a lower side; a suction fan provided on an upper side in the housing; and an evaporator provided under the suction fan in the housing, wherein the housing includes: a wide flow path in which the suction fan and the evaporator are disposed; and a flow path reducing part in which the flow path is gradually reduced below the evaporator; , it extends from the lower side of the flow path reducing part to the outlet and has a narrow flow path having a constant flow path, and the evaporator is arranged parallel to the rotational surface of the suction fan.

Specifically, the flow path reducing part may be provided at a position in which an upper end corresponds to a lower end of the evaporator.

Specifically, in the flow path reducing part, the angle of the inclined surface provided on the opposite side of the inner space may be 10 degrees to 40 degrees.

Specifically, the narrow flow path portion may have a front and rear width of a cross-sectional area of a passage compared to the wide passage portion in a range of 20% to 30%.

Specifically, the refrigerating device may be cooled by using the power of the battery without the use of external power during the transportation process.

Specifically, the battery may be charged by receiving electric power from the outside when unloading or loading into the internal space, and may supply electric power to the refrigeration device during transportation.

The refrigerating container according to the present invention implements the refrigerating cycle by arranging the evaporator of the refrigerating device horizontally on the flow path and numerically optimizing the width, inclination, etc. of the flow path structure, so that the space occupied by the refrigerating device is not increased. It can ensure the efficient refrigeration performance of the refrigerator, secure the loading capacity, and optimize the space occupied by the refrigeration system.

In addition, the refrigerating container according to the present invention forms a blocking part so that cold air is directed to the inner space of the container while shielding the empty space between the container bottom and the refrigerating apparatus generated when the refrigerating apparatus is installed in the container, thereby allowing the cold air to flow into the empty space. It is easily supplied into the space inside the container without going to the container, ensuring efficient refrigeration performance of the refrigeration system and reducing unnecessary cooling load.

In addition, the refrigerating container according to the present invention has a built-in battery that is its own power to operate the refrigerating device, but provides a cooling passage for dissipating heat generated from the battery with a part of the cold air supplied to the inner space of the container. Otherwise, it is possible to realize the operation of the cooling system by itself without an external power source, and it is possible to implement a stable battery-based refrigeration system because there is no need to provide a separate battery cooling system.

1 is a view for explaining a refrigerating container according to a first embodiment of the present invention.
2 is a view for explaining a refrigerating container according to a second embodiment of the present invention.
3 is a view for explaining a refrigerating container according to a third embodiment of the present invention.
4 is a view for explaining the battery part of the refrigerating container according to the third embodiment of the present invention.
5 to 30 are flow analysis for each of the first to 25th cases based on the base case to derive the first embodiment (the 19th case) and the second embodiment (the 18th case) of the present invention. It is a figure for comparatively explaining a result.
FIG. 31 is a graph showing the average speed inside the container for each of the first to 25th cases of FIGS. 6 to 30 based on the base case of FIG. 5 .
32 is a view for explaining and comparing the results of the flow analysis of the third embodiment based on the results of the flow analysis (the 19th case) of the first embodiment of the present invention.

The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments taken in conjunction with the accompanying drawings. In the present specification, in adding reference numbers to the components of each drawing, it should be noted that only the same components are given the same number as possible even though they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a view for explaining a refrigerating container according to a first embodiment of the present invention, Figure 2 is a view for explaining a refrigerating container according to a second embodiment of the present invention, Figure 3 is a third of the present invention It is a view for explaining a refrigerating container according to an embodiment.

1 to 3 , the refrigerating container 1 according to each of the first to third embodiments of the present invention includes a container 100 and a refrigerating device 200 .

The container 100 includes a floor insulation panel 110 , a side wall insulation panel 120 , a roof insulation panel 130 , a door insulation panel 140 , and an assembled insulation panel 150 . The refrigerating container 1 according to the first to third embodiments of the present invention may be used as a container for sea or land, and is not limited to the uses described herein, of course.

The container 100 combines the floor insulation panel 110 , the side wall insulation panel 120 , the roof insulation panel 130 , and the door insulation panel 140 to form an inner space with one side open, and one side is open. It may be formed by combining the assembled insulation panel 150 in which the refrigeration device 200 is installed. In this case, the assembled heat insulating panel 150 is a heat insulating panel disposed at a position opposite to the door heat insulating panel 140 .

In this embodiment, the container 100 is described as being coupled to the open side part in the state in which the refrigeration device 200 is installed in the assembled heat insulating panel 150, but the assembled heat insulating panel 150 is connected to the other heat insulating panels 110 and 120. , 130 and 140 are combined together to form a sealed inner space, and then, of course, the refrigerating device 200 can be installed on the inner wall of the assembled insulating panel 150 .

The floor insulation panel 110 corresponds to the lower portion of the refrigerating container 1 , and is formed below the side wall insulation panel 120 , the door insulation panel 140 , and the assembled insulation panel 150 , and the roof insulation panel 130 . ), the side wall insulation panel 120 , the door insulation panel 140 , and the assembled insulation panel 150 may be formed in a different structure.

The floor insulation panel 110 is, although not shown, an outer layer formed of an iron plate to protect the inner layer from a harsh external environment, an inner layer formed of a plywood plate to maximize thermal insulation performance, the outside It may consist of an intermediate layer formed of an insulating material (eg polyurethane foam) to which a vacuum is applied at least partially between the layer and the inner layer for thermal insulation. It goes without saying that, in addition to the floor insulation panel 110 configured as described above, floor insulation panels of various structures may be applied.

The side wall insulation panel 120 corresponds to the side of the container 100 , and is formed on the upper side of the floor insulation panel 110 .

Although not shown, the side wall insulation panel 120 is formed of an iron plate having a form of corrugation so that, when a plurality of containers 100 are stacked on each other, the load is distributed to improve durability due to the stacking. Formed from an insulating material (e.g. polyurethane foam) to which a vacuum is applied at least partially for insulation between the outer and inner layers, an inner layer formed of stainless steel plates to protect the intermediate layer from harsh external environments. It may consist of an intermediate layer. Of course, in addition to the sidewall insulation panel 120 configured as described above, sidewall insulation panels of various structures may be applied.

The roof insulation panel 130 corresponds to the upper portion of the container 100 , and is disposed above the sidewall insulation panel 120 . Here, since the roof insulation panel 130 is the same as or similar to the configuration of the side wall insulation panel 120 described above, a description thereof will be omitted.

However, the roof insulation panel 130 has a relatively thick thickness of the middle layer compared to the side wall insulation panel 120 so as to effectively prevent heat transmitted from direct sunlight, and instead the thickness of the outer layer is relatively thin. can

The door insulation panel 140 may be opened and closed on one side of the side wall insulation panel 120 of the container 100 so that articles can be drawn in or out of the container 100 . Here, since the door insulation panel 140 is the same as or similar to the configuration of the side wall insulation panel 120 described above, a description thereof will be omitted.

The door insulation panel 140 may include an airtight means, such as a gasket, in a gap portion connected to the sidewall insulation panel 120 so that the cold air inside the container 100 does not leak to the outside.

The assembled insulation panel 150 is a state in which the floor insulation panel 110, the side wall insulation panel 120, the roof insulation panel 130, and the door insulation panel 140 are combined to form an open inner space at one side, It may be assembled and coupled to the floor insulation panel 110 , the side wall insulation panel 120 , and the roof insulation panel 130 , which are open portions at positions opposite to the insulation panel 140 . Here, the assembled insulation panel 150 is the same as or similar to the configuration of the side wall insulation panel 120 described above, and thus a description thereof will be omitted.

However, the assembled insulating panel 150, since the refrigeration device 200 must be installed on the inner wall, can be manufactured separately from other insulating panels 110, 120, 130, 140. In this embodiment, the container 100 is described as being coupled to the open side part in the state in which the refrigeration device 200 is installed in the assembled heat insulating panel 150, but the assembled heat insulating panel 150 is connected to the other heat insulating panels 110 and 120. , 130 and 140 are combined together to form a sealed inner space, and then, of course, the refrigerating device 200 can be installed on the inner wall of the assembled insulating panel 150 .

Since the assembled insulation panel 150 is assembled and coupled to the floor insulation panel 110 , the side wall insulation panel 120 , and the roof insulation panel 130 , when the refrigeration device 200 is installed, the upper and lower parts of the assembled insulation panel 150 . Leave space for joining on the left and right. Due to this, an empty space is created between the refrigerating device 200 and the floor insulation panel 110 in a state in which the assembled insulation panel 150 is coupled, and this empty space is irrespective of the loading space and is removed from the container from the refrigerating apparatus 200 . When the cold air supplied to the inner space of 100 is supplied to the loading space, the refrigeration efficiency is reduced.

The refrigerating device 200 is installed on the inner wall of the assembled insulation panel 150 of the container 100 so that agricultural and fishery products, livestock products, processed foods, flowers, chemical medicines, etc. loaded in the inner space can be frozen and refrigerated.

The refrigerating device 200 includes a housing 210, a suction fan 220, an evaporator 230, a shut-off unit 240, and a battery 250, and although not shown in the drawings, a compressor, a condenser, and an expander are also included. do.

The refrigerating device 200 compresses a gaseous refrigerant in a compressor (not shown) to a high-temperature and high-pressure state, and condenses the high-temperature and high-pressure gas exiting the compressor from a condenser (not shown), In the expander (not shown), the pressure of the high-pressure liquid is lowered to expand, and the liquid coolant with a low temperature and pressure from the evaporator 230 absorbs heat from the surrounding hot air and evaporates into a gaseous state. , when the surrounding air is cooled in the evaporator 230 through this coolant circulation process, the suction fan 220 is turned to send the cool air into the inner space of the container 100 .

The housing 210 is provided with an inlet 211 through which the air of the inner space of the container 100 is introduced at the upper side, and an outlet 212 through which air is delivered to the inner space of the container 100 at the lower side, and is assembled and insulated It is installed on the inner wall of the panel 150 .

The housing 210 may include a front wall facing the inner space of the container 100 , a rear wall coupled to the assembled insulation panel 150 , and a side wall connecting the front wall and the rear wall.

The front wall of the housing 210 forms a vertical plane parallel to the assembled insulating panel 150 . The rear wall of the housing 210 forms a vertical surface so that the upper side can be coupled to the assembled insulation panel 150, the lower side forms a vertical surface so as to be spaced apart from the assembled insulation panel 150 by a predetermined distance, and the middle side forms a vertical surface of the upper side and It forms an inclined plane connecting the lower vertical planes.

For this reason, the inside of the housing 210 may be divided into a wide flow path part 213 on the upper side, a flow path reduction part 214 on the middle side, and a narrow flow path part 215 on the lower side.

A suction fan 220 and an evaporator 230 may be provided in the wide passage part 213 .

The suction fan 220 may be provided close to the inlet 211 at the upper side of the wide flow path part 213 to suck the air inside the container 100 and send it to the evaporator 230 .

The evaporator 230 may cool the air supplied from the suction fan 220 , and may be provided below the suction fan 220 . The evaporator 230 may be disposed parallel to the rotation surface of the suction fan 220 .

In the flow path reducing part 214 , the flow path is gradually reduced from the lower side of the evaporator 230 to the narrow flow path part 215 . The flow path reducing part 214 is provided at a position whose upper end corresponds to the lower end of the evaporator 230 . In addition, the flow path reducing part 214 is such that the angle of the inclined surface provided on the opposite side of the inner space is 10 to 40 degrees.

The narrow flow path part 215 extends from the lower side of the flow path reducing part 214 to the outlet 212 and has a constant flow path. The narrow flow path part 215 may have a front and rear width of 20% to 30% of the flow path cross-sectional area compared to the wide flow path part 213 .

As described above, in this embodiment, the evaporator 230 is disposed parallel to the rotational surface of the suction fan 220 , and the upper end of the flow path reducing unit 214 is provided at a position corresponding to the lower end of the evaporator 230 , The angle of the slope of the flow path reducing part 214 is 10 to 40 degrees, and the narrow flow path part 215 has a front and rear width of 20% to 40% of the flow path cross-sectional area compared to the wide flow path part 213. The features of this embodiment are It is derived based on the results of flow analysis for each of the first to 25th cases based on the base case to be described later with reference to FIGS. 5 to 30 and the graph shown in FIG. 31 .

The case corresponding to the present embodiment described above is the 19th case shown in FIGS. 24 and 31 , which is the first embodiment of the present invention without the blocking part 240 , and the outlet velocity, air circulation flow rate, and average velocity inside the container. of the refrigeration apparatus 200 except for the 18th case shown in FIGS. 23 and 31, the 20th case shown in FIGS. 25 and 31, and the 25th case shown in FIGS. 30 and 31 among other cases. It can be seen by the following description that the performance is excellent. Here, the 18th case shown in FIGS. 23 and 31 corresponds to the second embodiment of the present invention, and the second embodiment further includes a blocking unit 240 compared to the configuration of the first embodiment, so that the refrigerating device 200 ) is superior to that of the first embodiment, and the 20th case shown in FIGS. 25 and 31 and the 25th case shown in FIGS. 30 and 31 are superior to the first embodiment, but the refrigeration device 200 occupies As the space increases, there is a disadvantage in that the loading capacity is reduced compared to the first embodiment.

In this first embodiment, the refrigerating device 200 is implemented by arranging the evaporator 230 of the refrigerating device 200 horizontally on the flow path and numerically optimizing the width and inclination of the flow path structure to implement the refrigerating cycle. ), it is possible to ensure efficient refrigeration performance of the refrigerating device 200 without increasing the space occupied by the refrigeration device 200 , to secure a loading capacity, and to optimize the space occupied by the refrigerating device 200 .

The blocking unit 240, as described above, creates an empty space (gap) between the refrigerating device 200 and the floor insulation panel 110 in a state in which the assembled insulation panel 150 is coupled, and this gap is loaded When the cold air supplied from the refrigerating device 200 to the inner space of the container 100 is supplied to the loading space regardless of the space, the refrigeration efficiency is lowered, and may be installed to solve this problem.

That is, the container 100 is spaced upward by a certain height from the bottom of the inner space to form a gap, and the blocking part 240 is opened from the gap with respect to the outlet 212 of the housing 210 in one direction. installed to block air flow.

The blocking portion 240 seals a portion of the gap where the outlet 212 is not projected, so that the gap becomes a dead space.

The blocking part 240 may be inclined so that the flow of air discharged from the outlet 212 of the housing 210 is directed toward the inner space of the container 100 .

As described above, the cold air is directed to the inner space of the container 100 while shielding the empty space between the container bottom 110 and the refrigerating device 200 generated when the refrigerating device 200 is installed in the container 100 . By forming the blocking part 240, cold air is easily supplied to the inner space of the container without going to an empty space (gap), thereby ensuring efficient refrigeration performance of the refrigerating device 200 and reducing unnecessary cooling load, which is shown in FIGS. It is derived based on the results of flow analysis for each of the first to 25th cases based on the base case to be described later with reference to FIG. 30 and the graph shown in FIG. 31 .

The case corresponding to the present embodiment described above is the 18th case shown in FIGS. 23 and 31 , which is a second embodiment of the present invention having a blocking unit 240 in addition to the first embodiment, and the outlet speed, air circulation Among the cases having different flow rates and average speed inside the container, the excellent performance of the refrigerating device 200 will be described later, except for the 20th case shown in FIGS. 25 and 31 and the 25th case shown in FIGS. 30 and 31 . will be known by Here, the 20th case shown in Figs. 25 and 31 and the 25th case shown in Figs. 30 and 31 are superior to the second embodiment, but as the space occupied by the refrigerating device 200 increases, the loading capacity becomes the second case. There is a disadvantage of being reduced compared to the embodiment.

The battery 250 may supply power for operating the refrigerating device 200 by itself without the use of external power during the transportation process.

The battery 250 may be charged by receiving power from the outside when unloading or loading the container 100 internal space, and may supply power to the refrigerating device 200 during the transportation process.

The battery 250 may be disposed on the opposite side of the inner space of the container 100 in the housing 210 . Specifically, the battery 250 may be provided in the installation space 216 generated between the intermediate side inclined surface and the lower vertical surface and the assembled insulation panel 150 on the rear wall of the housing 210 .

In this installation space 216 , not only the battery 250 but also the upper part of the battery 250 , although not shown, a compressor, a condenser, an expander, etc., which are essential components of the refrigeration system 200 , may be installed. .

The battery 250 generates heat while supplying power to the refrigerating device 200 . Accordingly, a battery cooling system for dissipating heat must be provided. In this embodiment, the battery 250 is cooled by the battery cooling passage 251 .

The battery cooling passage 251 may surround the battery 250 and cool the battery 250 using cold air. The battery cooling passage 251 may be branched from the housing 210 to cool the battery 250 with air cooled by the evaporator 230 .

The battery cooling passage 251 may be provided to branch and merge at the lower portion of the narrow passage portion 215 . In addition, the battery cooling flow path 251 is branched from one point in the lower part of the narrow flow path part 215 , and after the battery 250 is wrapped around the narrow flow path part 215 at another point different in height from one point in the lower part of the narrow flow path part 215 . It can be arranged to join.

The battery cooling passage 251 is 0.1% to 2% of the air flowing along the narrow passage portion 215 so that heat generated when cooling the battery 250 does not affect the inner space of the container 100 . It may be formed to have a cross section of a size through which the air of the inflow is introduced.

The cross-sectional size of the battery cooling passage 251 is, as shown in FIG. 32, the battery cooling passage 251 is provided based on the result of the flow analysis (the 19th case in FIG. 24) of the first embodiment of the present invention. It was obtained as a result of the flow analysis of the refrigerating container 1 of the third embodiment.

That is, the result of modeling the refrigerating container 1 and the battery cooling passage 251 based on the 19th case corresponding to the refrigerating container 1 of the first embodiment, which is the optimal design condition, and performing numerical analysis through flow analysis. , the refrigeration unit outlet speed is 4.66 m/s (1% decrease compared to Case 19), the air circulation flow rate is 0.40 kg/s (1% increase compared to Case 19), and the average speed inside the container is 1.06 m/s (No. 19 case) 1% reduction compared to the case), and it was found that even if the battery cooling passage 251 was added, the effect on the flow inside the refrigerating device 200 and the container 100 was insignificant. For reference, in the 19th case of FIG. 24 corresponding to the refrigerating container 1 of the first embodiment, the refrigerating device outlet speed is 4.69 m/s, the air circulation flow rate is 0.4 kg/s, and the average speed inside the container is 1.07 m/s. is s.

Through this, the third embodiment has a built-in battery 250 that is its own power to operate the refrigerating device 200 , but the heat generated from the battery 250 as a part of the cold air supplied to the inner space of the container 100 . By providing a cooling flow path 251 to dissipate heat, unlike the existing one, the operation of the refrigeration device 200 can be realized by itself without an external power source, and there is no need for a separate battery cooling system, so a stable battery 250-based refrigeration system (200) can be implemented.

Hereinafter, with reference to FIGS. 5 to 30, each of the first to 25th cases based on the base case to derive the first embodiment (the 19th case) and the second embodiment (the 18th case) of the present invention Compare and explain the results of flow analysis for

The specifications of the container 100 and the refrigerating device 200 of the refrigerating container 1 shown in each of FIGS. 5 to 30 are the same, except that the refrigerating container 1 corresponding to the base case shown in FIG. 5 is refrigerated. In the refrigerating container 1 shown in each of FIGS. 6 to 30 based on the device 200, the conditions of the inlet 211 of the refrigerating device 200 are different, or the location conditions of the evaporator 230 are different, Each refrigerating container 1 is modeled by varying the condition of the width of the narrow passage 215, the condition of the outlet 212, and a combination of these conditions, and the refrigerating device outlet through flow analysis. Velocity, air circulation flow rate, average speed inside the container, and the performance of the refrigerating container 1 corresponding to the base case compared to the performance of the first to 25th cases of each refrigerating container 1 were calculated.

At least one suction fan 220 may be provided in the refrigerating device 200 , and in this case, three suction fans 220 are provided.

5 is a refrigerating container (1) corresponding to the base case, flow analysis was performed when the evaporator 230 of the refrigerating device 200 is disposed to have an inclination rather than parallel to the rotation surface of the suction fan 220, As a result, an outlet velocity of 3.99 m/s, an air circulation flow rate of 0.42 kg/s, and an average velocity inside the container were obtained as 3.99 m/s.

6, as the refrigerating container 1 corresponding to the first case, flow analysis was performed when the height of the inlet 211 of the refrigerating apparatus 200 was increased compared to the base case, and as a result, the refrigerating apparatus outlet speed was 3.99 m/ s, air circulation flow rate 0.42 kg/s, and average speed inside the container 0.69 m/s were obtained, and the performance of the reefer container (1) corresponding to the first case compared to the performance of the refrigerating container (1) corresponding to the base case was - It was found that a 23% decrease was observed.

7, as the refrigerating container 1 corresponding to the second case, flow analysis was performed when the height of the inlet 211 of the refrigerating apparatus 200 was reduced compared to the base case, and as a result, the refrigerating apparatus outlet speed 4.04 m/ s, air circulation flow rate 0.43 kg/s, and average speed inside the container 0.69 m/s were obtained, and the performance of the reefer container (1) corresponding to the second case was 1 compared to the performance of the refrigerating container (1) corresponding to the base case. % improvement was found.

8 is a refrigeration container 1 corresponding to the third case, when an inlet guide (not shown) having an angle of 60 degrees is installed in the inlet 211 portion of the refrigerating apparatus 200 compared to the base case. Flow analysis was performed, and as a result, the refrigeration system outlet speed of 4.10 m/s, the air circulation flow rate of 0.43 kg/s, and the average speed of the container inside 0.71 m/s were obtained, compared to the performance of the refrigerating container (1) corresponding to the base case. It was found that the performance of the refrigeration container (1) corresponding to 3 cases was improved by 1%.

9 is a refrigeration container 1 corresponding to the fourth case, when an inlet guide (not shown) having an angle of 30 degrees is installed at the inlet 211 of the refrigerating apparatus 200 compared to the base case. Flow analysis was performed, and as a result, the refrigerating device outlet speed of 4.06 m/s, the air circulation flow rate of 0.43 kg/s, and the average speed of the container inside 0.70 m/s were obtained, compared to the performance of the refrigerating container (1) corresponding to the base case. It was found that the performance of the refrigeration container (1) corresponding to 4 cases was improved by 1%.

10 is a refrigeration container 1 corresponding to the fifth case, flow analysis was performed when the evaporator 230 of the refrigeration apparatus 200 is horizontal and located in the middle compared to the base case, and as a result, the refrigeration apparatus exit speed 4.42 m/s, air circulation flow rate 0.47 kg/s, and average speed inside the container 0.76 m/s were obtained, compared to the performance of the reefer container 1 corresponding to the base case It was found that the performance improved by 11%.

11 is a refrigerating container 1 corresponding to the sixth case, and flow analysis was performed when the evaporator 230 of the refrigerating device 200 is horizontal and located at the top compared to the base case, and as a result, the refrigerating device exit speed 4.37 m/s, air circulation flow rate 0.46 kg/s, and average speed inside the container 0.75 m/s were obtained, compared to the performance of the refrigerating container (1) corresponding to the base case, compared to the performance of the reefer container (1) corresponding to the 56th case. It was found that the performance was improved by 10%.

12 is a refrigerating container 1 corresponding to the seventh case, and flow analysis was performed when the evaporator 230 of the refrigerating device 200 is horizontal and located at the bottom compared to the base case, and as a result, the refrigerating device exit speed 4.41 m/s, air circulation flow rate 0.47 kg/s, and average speed inside the container 0.76 m/s were obtained, compared to the performance of the refrigerating container 1 corresponding to the base case. It was found that the performance improved by 11%.

13, as the refrigerating container 1 corresponding to the eighth case, flow analysis was performed when the width of the narrow passage part 215 of the refrigerating apparatus 200 was reduced compared to the base case, and as a result, the refrigerating apparatus exit speed 5.54 m/s, an air circulation flow rate of 0.29 kg/s, and an average speed inside the container of 0.65 m/s were obtained, compared to the performance of the reefer container (1) corresponding to the base case, compared to the performance of the reefer container (1) corresponding to the 8th case. It was found that the performance decreased by -6%.

14 is a refrigeration container 1 corresponding to the ninth case, and flow analysis was performed when the width of the narrow passage part 215 of the refrigeration apparatus 200 was increased compared to the base case, and as a result, the refrigeration apparatus exit speed 2.29 m/s, air circulation flow rate 0.47 kg/s, and average speed inside the container 0.69 m/s were obtained, compared to the performance of the refrigerating container 1 corresponding to the base case. It can be seen that the performance is the same as 0%.

15, as the refrigerating container 1 corresponding to the tenth case, flow analysis was performed when the height of the outlet 212 of the refrigerating apparatus 200 was reduced compared to the base case, and as a result, the refrigerating apparatus outlet speed was 5.49 m /s, air circulation flow rate 0.37 kg/s, average speed inside the container 0.68 m/s were obtained, and the performance of the reefer container 1 corresponding to the 10th case compared to the performance of the refrigerating container 1 corresponding to the base case was obtained. -1% reduction was observed.

16 is a refrigerating container 1 corresponding to the 11th case, and flow analysis was performed when the height of the outlet 212 of the refrigerating device 200 was increased compared to the base case, and as a result, the refrigerating device outlet speed was 4.11 m /s, air circulation flow rate 0.44 kg/s, and average speed inside the container 0.71 m/s were obtained, and the performance of the reefer container 1 corresponding to the 11th case compared to the performance of the refrigerating container 1 corresponding to the base case was obtained. A 4% improvement was found.

17 is a refrigeration container 1 corresponding to the twelfth case, and a blocking unit 240 while installing an outlet guide (reference numeral not shown) having a triangular shape at the outlet 212 of the refrigerating apparatus 200 compared to the base case ), and as a result, an outlet velocity of 4.47 m/s, an air circulation flow rate of 0.35 kg/s, and an average velocity of 0.92 m/s inside the container were obtained as a result, and the refrigeration container corresponding to the base case (1 ) compared to the performance of the refrigeration container (1) corresponding to the 12th case was found to be improved by 34%.

18 is a refrigeration container 1 corresponding to the thirteenth case, and a blocking unit 240 while installing an outlet guide (reference numeral not shown) having a trapezoidal shape at the outlet 212 of the refrigerating apparatus 200 compared to the base case ), the flow analysis was performed, and as a result, the refrigeration unit outlet speed of 4.24 m/s, the air circulation flow rate of 0.36 kg/s, and the average internal speed of the container 0.93 m/s were obtained. ) compared to the performance of the refrigeration container (1) corresponding to the 13th case was found to be improved by 35%.

19 is a refrigeration container 1 corresponding to the 14th case, and a blocking part 240 while installing an exit guide (reference numeral not shown) having a trapezoidal shape at the exit 212 of the refrigeration apparatus 200 compared to the base case ) was not present, and as a result, an outlet velocity of 4.24 m/s, an air circulation flow rate of 0.36 kg/s, and an average velocity of 0.95 m/s in the container were obtained as a result, and the refrigeration container corresponding to the base case (1 ), it was found that the performance of the refrigeration container (1) corresponding to the 14th case was improved by 38% compared to the performance of the refrigeration container (1).

20 is a refrigeration container 1 corresponding to the fifteenth case, and a blocking part 240 while installing an outlet guide (not shown) having a triangular shape at the outlet 212 of the refrigerating apparatus 200 compared to the base case ) was not present, and as a result, an outlet velocity of 4.47 m/s, an air circulation flow rate of 0.35 kg/s, and an average velocity of 0.93 m/s in the container were obtained as a result, and the refrigeration container corresponding to the base case (1 ), it was found that the performance of the refrigeration container (1) corresponding to the 15th case was improved by 35% compared to the performance of the refrigeration container (1).

21 is a refrigerating container 1 corresponding to the 16th case, and flow analysis is performed when the evaporator 230 of the refrigerating apparatus 200 is horizontal compared to the base case and the slope angle of the flow path reducing part 214 is large. As a result, the refrigerating device outlet speed of 4.52 m/s, air circulation flow rate of 0.48 kg/s, and the average speed inside the container were obtained of 0.80 m/s. Compared to the performance of the refrigerating container 1 corresponding to the base case, the 16th case It was found that the performance of the corresponding refrigeration container (1) was improved by 16%.

22 is a refrigerating container 1 corresponding to the 17th case, and flow analysis is performed when the evaporator 230 of the refrigerating apparatus 200 is horizontal compared to the base case and the slope angle of the flow path reducing part 214 is small. As a result, the refrigerating device outlet speed of 4.49 m/s, the air circulation flow rate of 0.48 kg/s, and the average speed of the container inside 0.79 m/s were obtained. It was found that the performance of the corresponding refrigeration container (1) was improved by 14%.

23 is a refrigerating container 1 corresponding to the 18th case, in which the evaporator 230 of the refrigerating apparatus 200 is horizontal compared to the base case, the slope angle of the flow path reducing part 214 is large, and the outlet 212 is large. A flow analysis was performed when there was a blocking part 240 while installing an exit guide (not shown) having a trapezoidal shape, and as a result, the refrigerating device outlet speed was 4.69 m/s, the air circulation flow rate was 0.40 kg/s, and the container An internal average speed of 1.07 m/s was obtained, and it was found that the performance of the reefer container 1 corresponding to the 18th case was improved by 56% compared to the performance of the reefer container 1 corresponding to the base case.

Here, the refrigerating container 1 corresponding to the 18th case corresponds to the second embodiment of the present invention.

24 is a refrigeration container 1 corresponding to the 19th case, in which the evaporator 230 of the refrigeration apparatus 200 is horizontal compared to the base case, the slope angle of the flow path reducing part 214 is large, and the outlet 212 is large. A flow analysis was performed when there was no blocking part 240 while installing an exit guide (not shown) having a trapezoidal shape in the refrigeration unit. As a result, the refrigeration unit outlet speed was 4.69 m/s, the air circulation flow rate was 0.40 kg/s, and the container An internal average speed of 1.07 m/s was obtained, and it was found that the performance of the reefer container 1 corresponding to the 19th case was improved by 55% compared to the performance of the reefer container 1 corresponding to the base case.

Here, the refrigerating container 1 corresponding to the 19th case corresponds to the first embodiment of the present invention.

25 is a refrigeration container 1 corresponding to the 20th case, in which the evaporator 230 of the refrigeration apparatus 200 is horizontal compared to the base case, the slope angle of the flow path reducing part 214 is large, and the outlet 212 is large. Flow analysis was performed when there was no blocking part 240 and the width of the narrow passage part 215 was wide while installing an exit guide (not shown) having a trapezoidal shape, and as a result, the refrigeration unit exit speed 4.56 m/ s, an air circulation flow rate of 0.43 kg/s, and an average speed inside the container of 1.11 m/s were obtained, and the performance of the reefer container 1 corresponding to the 20th case was 61 compared to the performance of the reefer container 1 corresponding to the base case. % improvement was found.

In the case of the 20th case, the performance of the refrigerating container 1 is excellent compared to the first and second embodiments of the present invention, but as the width of the narrow passage part 215 is widened, the installation space 216 is inevitably narrow, As a result, the housing 210 has to be enlarged to secure a space for installing an expander, a compressor, a battery, and the like, and consequently, the internal space of the container 100 is reduced.

26 is a refrigeration container 1 corresponding to the 21st case, in which the evaporator 230 of the refrigeration apparatus 200 is horizontal compared to the base case, the slope angle of the flow path reducing part 214 is large, and the outlet 212 is large. Flow analysis was performed in the case where there was no blocking part 240 and the width of the narrow passage part 215 was narrow while installing an exit guide (not shown) having a trapezoidal shape in the s, an air circulation flow rate of 0.29 kg/s, and an average speed of 0.90 m/s inside the container were obtained, and the performance of the reefer container (1) corresponding to the 21st case was 31 compared to the performance of the reefer container (1) corresponding to the base case. % improvement was found.

27 is a refrigeration container 1 corresponding to the 22nd case, in which the evaporator 230 of the refrigeration apparatus 200 is horizontal compared to the base case, the slope angle of the flow path reducing part 214 is large, and the outlet 212 is large. A flow analysis was performed when there was no blocking part 240 while installing an outlet guide (not shown) having a triangular shape in the refrigeration system. As a result, the refrigeration unit outlet speed was 4.86 m/s, the air circulation flow rate was 0.38 kg/s, and the container An internal average speed of 1.07 m/s was obtained, and it was found that the performance of the reefer container 1 corresponding to the 22nd case was improved by 55% compared to the performance of the reefer container 1 corresponding to the base case.

28 is a refrigerating container 1 corresponding to the 23rd case, in which the evaporator 230 of the refrigerating apparatus 200 is horizontal compared to the base case, the slope angle of the flow path reducing part 214 is large, and the outlet 212 is large. Flow analysis was performed when there was no blocking part 240 while installing an outlet guide (not shown) having a streamline shape in the An internal average speed of 1.06 m/s was obtained, and it was found that the performance of the reefer container 1 corresponding to the 23rd case was improved by 54% compared to the performance of the reefer container 1 corresponding to the base case.

29 is a refrigeration container 1 corresponding to the 24th case, in which the evaporator 230 of the refrigeration apparatus 200 is horizontal compared to the base case, the slope angle of the flow path reducing part 214 is large, and the outlet 212 is large. A flow analysis was performed when an outlet guide (not shown) having a trapezoidal shape was installed while increasing the height of the trapezoidal shape and there was no blocking part 240. /s, an average speed of 1.06 m/s inside the container was obtained, and it was found that the performance of the reefer container 1 corresponding to the 24th case was improved by 54% compared to the performance of the reefer container 1 corresponding to the base case.

30 is a refrigeration container 1 corresponding to the 25th case, and an inlet guide (not shown) having an angle of 60 degrees is installed in the inlet 211 portion of the refrigerating device 200 compared to the base case, and refrigeration The evaporator 230 of the device 200 is horizontal, the slope angle of the flow path reducing part 214 is large, and the exit guide (reference numeral not shown) having a trapezoidal shape is installed at the exit 212 while the blocking part 240 is installed. A flow analysis was performed in the absence of the refrigeration unit, and as a result, an outlet velocity of 4.82 m/s, an air circulation flow rate of 0.41 kg/s, and an average velocity of 1.10 m/s in the container were obtained. It was found that the performance of the refrigeration container (1) corresponding to the 24th case was improved by 60% compared to the performance of the

In the case of the 25th case, the performance of the refrigerating container 1 is excellent compared to the first and second embodiments of the present invention, but by installing an inlet guide having an angle of 60 degrees at the inlet 211 portion of the refrigerating device 200, the container ( 100) has the disadvantage of reducing the internal space.

In the above, the present invention has been described focusing on the embodiments of the present invention, but this is only an example and does not limit the present invention, and those of ordinary skill in the art to which the present invention pertains without departing from the essential description of the present embodiment. It will be appreciated that various combinations or modifications and applications not illustrated in the embodiments are possible within the scope. Accordingly, descriptions related to variations and applications that can be easily derived from the embodiments of the present invention should be interpreted as being included in the present invention.

1: refrigeration container 100: container
110: floor insulation panel 120: side wall insulation panel
130: roof insulation panel 140: door insulation panel
150: assembled insulation panel 200: refrigeration unit
210: housing 211: inlet
212: exit 213: wide passage section
214: flow path reducing section 215: narrow flow path section
216: installation space 220: suction fan
230: evaporator 240: blocking unit
241: Death Space 250: Battery
251: battery cooling path

Claims (6)

Insulation panel, at least one side of which forms an open inner space, to which a vacuum is applied at least partially;
a refrigerating device coupled to an open side and cooling the inner space surrounded by the heat insulating panel; and
A battery for supplying power to the refrigeration device,
The refrigeration unit is
a housing having an inlet through which the air of the inner space is introduced at the upper side and an outlet at the lower side for delivering air to the inner space;
a suction fan provided on an upper side within the housing; and
and an evaporator provided under the suction fan in the housing,
The housing is
It has a wide flow path part in which the suction fan and the evaporator are disposed, a flow path reducing part in which the flow path is gradually reduced from the lower side of the evaporator, and a narrow flow path part extending from the lower side of the flow path reducing part to the outlet and having a constant flow path,
The evaporator is a refrigerating container, characterized in that it is arranged parallel to the rotational surface of the suction fan. According to claim 1, wherein the flow path reducing portion,
Refrigerating container, characterized in that the upper end is provided at a position corresponding to the lower end of the evaporator. According to claim 1, wherein the flow path reducing portion,
A refrigerating container, characterized in that the angle of the inclined surface provided on the opposite side of the inner space is 10 degrees to 40 degrees. According to claim 1, wherein the narrow flow path portion,
A refrigerating container, characterized in that the front and rear width of the cross-sectional area of the passage compared to the wide passage portion is 20% to 30%. According to claim 1, wherein the refrigerating device,
Refrigeration container, characterized in that the cooling using the power of the battery without the use of external power in the transportation process. According to claim 1, wherein the battery,
Refrigerating container, characterized in that when receiving power from the outside when unloading or loading into the interior space, charging, and supplying power to the refrigerating device during the transportation process.

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