WO2014073721A1

WO2014073721A1 - Cold storage module, reefer container provided with plurality of cold storage modules and reefer container vehicle

Info

Publication number: WO2014073721A1
Application number: PCT/KR2012/009442
Authority: WO
Inventors: 김정열; 백종현; 박승상; 김명준; 이수양; 정동열; 박동호
Original assignee: 한국생산기술연구원
Priority date: 2012-11-09
Filing date: 2012-11-09
Publication date: 2014-05-15
Also published as: KR20140072764A

Abstract

The present invention relates to: a cold storage module for improving the thermal conductive characteristics, application scalability or the like of phase change materials; a reefer container provided with a plurality of cold storage modules; and a reefer container vehicle. The cold storage module comprises: a housing including the phase change materials (PCM) therein; a heat exchange pipe arranged to penetrate the housing and through which a refrigerant of low temperature flows for cooling the phase change materials; and mesh metal distributing cold energy to the phase change materials in the housing. The reefer container is provided with a plurality of the cold storage modules on the upper portion thereof and is loaded on the reefer container vehicle.

Description

Refrigeration container with refrigeration module, multiple refrigeration module, and refrigeration container vehicle

The present invention relates to a cold storage module, a refrigeration container equipped with a plurality of cold storage modules, and a refrigeration container vehicle having improved heat conduction characteristics and application expandability in a cold storage system using a latent heat storage coolant as a phase change material.

The refrigerator includes an evaporator, a compressor, a condenser, and the like. An evaporator is a type of heat exchanger that absorbs heat from an ambient space or an object to be cooled by evaporating an expanded low temperature low pressure refrigerant passing through an expansion valve.

The compressor converts the low pressure refrigerant into a high pressure and delivers it to the condenser, and the condenser cools the refrigerant compressed to high temperature and high pressure by the compressor to liquefy condensation and delivers it back to the evaporator.

Generally, a refrigerated container vehicle for storing and transporting loads in a fresh state or a public transportation means for transporting passengers is equipped with a freezer of the structure described above.

As the refrigerator is installed in the vehicle as described above, the overall weight of the vehicle is increased and a part of the engine power generated when the vehicle is driven must be used as a power source of the refrigerator, which causes a decrease in vehicle driving performance.

Considering the performance of the vehicle alone, a dedicated power source for driving the refrigerator can be installed separately, but the vehicle price increases and the vehicle weight increases further. Therefore, it increases fuel consumption while driving the vehicle and acts as a cause of excessive harmful gas emission. Excessive emissions of harmful gases are expanding to air pollution.

In addition, due to the structural characteristics of the freezer has a number of factors that cause frequent failures, due to the failure of the freezer often damage the load to maintain freshness or give a lot of inconvenience to passengers who want a pleasant trip .

As a result, there were many problems such as transportation loss, increase of logistics cost, and deterioration of service of public transportation.

As such, an efficient distributed storage method of electric power has been developed for solving the problems caused by installing and driving the refrigerator directly in a vehicle and additionally for the efficient use of surplus power such as midnight electric power.

The development of latent heat storage coolant using endothermic reaction accompanied by phase change of melting, coagulation, etc., which is a heat medium, and the development of a cold storage module or a cooling system using the same are one of them.

The refrigeration system can be divided into two purposes. The first is to use the night-time electricity, a kind of rationalization of energy use, to power the operation time of the heat source device (mainly the freezer) that is driven to generate cold heat in the refrigeration field. It is aimed at stabilizing national power demand by operating at low time and storing and refrigerating, and at time of high electric power demand, by using cold stored heat source to maintain cooling, refrigeration and freezing.

The second purpose is to supply the cooling heat source with uniform temperature to the system requiring cooling, refrigeration and freezing to maintain high quality in the process of processing, storing or transporting the product compared to the existing system, or to uniform the heating part in various systems. Another purpose is to improve the performance or economy of the overall system by means of one cooling.

In addition, the cold storage technology has a wide range of applications such as aerospace, advanced weapon control, telecommunications, biomedical industry, and special clothing.

The core of the cold storage technology is PCM (Phase CHANGE MATERIAL), which changes phase at a certain temperature range, and can store the amount of latent heat as much as the phase change enthalpy accompanying the phase change process. The latent heat material is also referred to as latent heat storage coolant.

The latent heat storage coolant is a material which accumulates cold heat in advance and then cools it when necessary. The latent heat storage coolant is manufactured by using an inorganic material such as an inorganic salt or an inorganic hydrate salt and an organic material such as paraffin, polyethylene or alcohol.

The inorganic material has a large thermal conductivity and a latent heat quantity and a small volume change compared to the organic material, and thus, an INORGANIC SALT mixture is mainly used as a latent heat storage material.

In the case of the cold storage module, a container filled with latent heat storage coolant is often made of a metallic material in consideration of manufacturing cost and heat transfer efficiency.

As described above, in the case of using a metal material, there is a problem that the latent heat storage coolant reacts with the metal due to the activity of the metal ions and the container corrodes.

In particular, when corrosion progresses rapidly, it may occur until the container is severely deformed or broken.

In order to improve this, a method of coating a corrosion preventing material in a metal container is applied, but the manufacturing process is complicated and the manufacturing cost increases.

The technology for manufacturing a container filled with latent heat accumulators using a polymer material has also been developed.

That is, a container is manufactured by processing methods, such as hollow fiber extrusion molding or injection molding, using the polyethylene system (low density polyethylene, linear low density polyethylene, high density polyethylene) excellent in low temperature characteristics.

The container of the polymer material is easier to manufacture in various forms than the metal container, but the characteristics of the storage and release of thermal energy is not good, and mechanical properties are somewhat weak compared to the metal material.

As a result, it is urgent to develop an optimal container considering the manufacturing cost and heat energy transfer characteristics of the heat storage module having the latent heat storage material filled in the container.

Furthermore, in the process of accumulating the cold heat by using the latent heat storage coolant filled in the container of the cold storage module, there is a demand for a technology for rapidly transferring the cold heat to the latent heat storage coolant or the technology for simultaneously transferring the entire heat storage coolant.

It is an object of the present invention to devise in view of the above, it is a cold storage module, a plurality of cold storage modules to optimize the heat energy transfer characteristics by transferring the cold heat evenly to the entire latent heat storage coolant while rapidly transferring the cold heat to the latent heat storage coolant is filled. To provide a refrigerated container and a refrigerated container vehicle.

Still another object of the present invention is to provide a cold storage module, a freezing container equipped with a plurality of cold storage modules, and a freezing container vehicle, which provide optimal efficiency for accumulating and cooling cold heat while minimizing structural deformation of the container.

A feature of the cold storage module according to the present invention for achieving the above object is a housing having a latent heat storage coolant (PCM) therein, and is disposed through the housing, the low temperature inside to cool the latent heat storage coolant And a mesh metal (MESH METAL) for distributing cold heat energy to the latent heat storage coolant in the housing.

Preferably, the housing may be made of carbon fiber or graphite fiber or glass fiber material, and more preferably any one of the carbon fiber, the graphite fiber and the glass fiber is cyclic butylene It may be a composite material combined with terephthalate (CBT).

Preferably, the mesh metal may be any one of metal materials including copper and stainless steel.

Preferably, at least one end of the mesh metal may be formed in direct contact with the heat exchange pipe.

Preferably, the mesh metal may be distributed throughout the housing.

Preferably, the heat exchange pipe may include a connection member for fastening with another pipe at an inlet through which the refrigerant flows in and an outlet through which the refrigerant flows out.

Preferably, the heat exchange pipe may be any one of metal materials including copper and aluminum.

Preferably, the housing may have a mounting portion in which an upper surface opposite to a lower surface extends outward, and the mounting portion may include at least one fastening hole for mounting the storage module in a target area.

Preferably, the housing may have a length that corresponds to a direction in which the heat exchange pipe penetrates, which is relatively longer than the width direction.

Preferably, air or an inert gas may be injected into a free space other than a space in which the latent heat storage coolant is filled in the housing.

Preferably, the internal pressure of the housing may be a negative pressure.

Preferably, the latent heat storage coolant may be made of any one of an inorganic composition, an organic composition, and a mixed composition of an inorganic substance and an organic substance.

Preferably, the housing may be formed in the outer wall of the periodic curved structure.

A feature of the refrigeration container equipped with a plurality of cold storage modules according to the present invention for achieving the above object is that the plurality of cold storage modules are arranged on the upper side.

Preferably, the arranged plurality of cold storage modules includes first to N cold storage modules, and the heat exchange pipe is connected between neighboring cold storage modules among the first to N cold storage modules, so that the first cold storage module to the Nth cold storage module A heat exchange pipeline through which the refrigerant flows may be formed. Here, the refrigerant inlet is formed on the side of the refrigeration container to allow the refrigerant to flow from the outside and the refrigerant outlet is formed to flow out the refrigerant to the outside, the inlet of the heat exchange pipe provided in the first storage module is connected to the refrigerant inlet Is connected, the outlet of the heat exchange pipe provided in the N-th storage module may be connected to the refrigerant outlet. In addition, the coolant inlet and the coolant outlet may be provided for connection to a refrigerator provided outside the freezing container.

Preferably, the heat exchange pipeline may include a heat exchange pipe provided in each of the first to N storage modules, and may further include a U-shaped tube connecting some of the storage modules to the first to N storage modules.

A feature of the refrigeration container vehicle according to the present invention for achieving the above object is that the refrigeration container equipped with a plurality of storage modules.

According to the present invention, it is possible to maximize the heat energy transfer characteristics using a mesh metal. Accordingly, the cold heat is rapidly transferred to the latent heat storage coolant to be filled, and the cold heat can be evenly transmitted to the entire latent heat storage coolant.

In the present invention, it is possible to shorten the accumulation time of the cold heat due to the even cold heat transfer characteristics for the entire latent heat storage refrigerant. That is, the provision of the mesh metal shortens the time for the latent heat storage coolant to reach the freezing temperature. This shortens the refrigerating cycle or the freezing cycle, which is advantageous for maintaining the freshness of the load.

In addition, in the present invention, while the housing filled with the latent heat storage coolant is made of a composite material (composite of fiber and CBT) having a certain degree of rigidity, the inside of the housing is made to have a negative pressure (-P), thereby By minimizing the structural deformation of the structure, it is not only resistant to deformation or breakage of the cold storage module, but also has no effect of corrosion of the metal housing.

In addition, in the present invention, since a refrigerator driven by surplus power such as a late-night electric power can be provided externally and interlocked, it is advantageous for efficient energy use.

1 is a perspective view showing a unit structure of a cold storage module according to an embodiment of the present invention.

Figure 2 is a front view of the cold storage module according to an embodiment of the present invention.

Figure 3 is a longitudinal sectional view of the cold storage module according to an embodiment of the present invention.

4 is a perspective view of a cold storage module according to an embodiment of the present invention.

5 is a side cross-sectional view of a cold storage module according to another embodiment of the present invention.

Figure 6 is a perspective view of a hemispherical storage cooling module according to another embodiment of the present invention.

7 is a diagram for explaining a phenomenon according to the phase change of the latent heat storage coolant in the heat storage module.

8 is a diagram for explaining a phenomenon according to the phase change of the latent heat storage coolant in the heat storage module according to the present invention.

9 is a cross-sectional view of a refrigeration container equipped with a plurality of cold storage modules according to an embodiment of the present invention.

10 is a cross-sectional view of a refrigeration container equipped with a plurality of cold storage modules according to another embodiment of the present invention.

11 is a diagram showing a structure in which a plurality of cold storage modules are mounted on a refrigeration container vehicle according to an embodiment of the present invention.

Other objects, features and advantages of the present invention will become apparent from the detailed description of the embodiments with reference to the accompanying drawings.

Hereinafter, with reference to the accompanying drawings illustrating the configuration and operation of the embodiment of the present invention, the configuration and operation of the present invention shown in the drawings and described by it will be described by at least one embodiment, By the technical spirit of the present invention described above and its core configuration and operation is not limited.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the cold storage module, a refrigeration container equipped with a plurality of cold storage modules, and a refrigerated container vehicle according to the present invention.

In the description of the present invention, the case in which the cold storage module is mounted in the freezing container and the vehicle in which the freezing container is mounted are described as an example. However, the present invention can be applied to a wide range of refrigerated freezers, refrigerators, refrigeration vehicles, freezing containers, mobile refrigeration containers and the like.

1 is a perspective view showing a unit structure of a cold storage module according to an embodiment of the present invention, Figure 2 is a front view of the cold storage module according to an embodiment of the present invention.

1 and 2, the heat storage module 100 includes a housing 10 including a latent heat storage material (PCM) 20 therein, and a heat exchange pipe disposed through the housing 10. 30).

The housing 10 corresponds to a sealed container in which the latent heat storage coolant 20 is filled, and may be made of a thermal carbon fiber or graphite fiber material.

In particular, the housing 10 may be a composite material in which any one of carbon fiber, graphite fiber, and glass fiber is combined with cyclic butylene terephthalate (CBT: CYCLIC BUTYLENE TEREPHTHALATE). Alternatively, the housing 10 may be a composite material in which any one of carbon fiber, graphite fiber, and glass fiber is combined with a nylon material.

More preferably, the housing 10 is manufactured from the composite material which synthesize | combined cyclic butylene terephthalate (CBT) in glass fiber system.

In this way, a cyclic butylene terephthalate (CBT) is synthesized in a fibrous system, and a material of a matrix (MATRIX) structure having some stiffness and softness is used for manufacturing the housing 10. As the composite material is manufactured, the outer wall thickness of the housing 10 may be thinly formed. For example, the housing 10 may be manufactured to a thickness of 0.5 ~ 1.0mm.

In the present invention, the housing 10 is illustrated as having a rectangular shape, in particular, a rectangular structure, but is not limited thereto.

5 is a cross-sectional view of one side of a cold storage module according to another embodiment of the present invention, the same as the configuration shown in Figs. 2 and 3, but the shape of the outer wall is modified to a structure for increasing the heat dissipation effect.

As shown in FIG. 5, the housing 10 may be formed in a periodic curved structure such that its outer wall is wavy. By forming the outer wall of the housing 10 in a periodic curved structure, the heat dissipation area is maximized compared to the outer wall of the flat plate.

The housing 10 has a mounting portion 11 in which an upper surface opposite to the lower surface extends outward.

The mounting portion 11 includes at least one fastening hole 12 that allows the cold storage module 100 to be mounted in the target region. Here, the target region corresponds to the upper surface of the inside of the refrigerated container, as shown in Figures 9 to 11, may be screwed through the fastening hole (12).

As the housing 10 has a rectangular structure, the heat exchange pipe 30 passes through two opposite sides of the housing 10.

Most preferably, the heat exchange pipe 30 passes through the center of two opposite sides of the housing 10 so that the transfer of cold heat is evenly distributed within the housing 10.

In particular, the heat exchange pipe 30 penetrates in the longitudinal direction having a relatively long length. That is, the heat exchange pipe 30 penetrates two side surfaces forming the width direction of the housing 10.

As another example, the housing 10 may have a circular upper planar portion and a hemispherical container filled with latent heat storage coolant under the upper planar portion. 6 is a perspective view of a hemispherical storage module according to another embodiment of the present invention.

As shown in FIG. 6, the implementation of the container filled with the latent heat storage coolant in a hemispherical shape takes into account that the circular structure has the highest heat dissipation area as compared to any structure including a rectangular structure.

Inside the housing 10, a latent heat storage coolant 20, which is a material that accumulates cold heat from a refrigerant that is a fluid in the heat exchange pipe 30, and then cools, is filled.

The heat exchange pipe 30 may be any one of metal materials including copper and aluminum having high thermal conductivity.

A portion of the heat exchange pipe 30 exposed to the outside of the housing 10 may be coated with a material for thermal insulation.

The latent heat storage coolant 20 has a freezing temperature of -26 to -29 ° C or lower, and after cooling to a temperature lower than the freezing temperature to accumulate cold heat, cooling is performed at a time when the cooling capacity is lowered and the ambient temperature becomes higher than the freezing temperature. .

The latent heat storage coolant 20 is filled not to fill 100% of the internal space of the housing 10. That is, the housing 10 is provided with a free space except the space filled with the latent heat storage coolant (20).

In addition, air or an inert gas may be injected into the free space. Here, the free space may serve as a thermal insulation. That is, when the cold storage module 100 is mounted through the fastening hole 12 provided in the mounting portion 11, the upper surface of the housing 10 is attached to the target area. Therefore, the upper surface of the housing 10 is more affected by heat introduced from the outside than the lower surface or the side surface. Thus, an additional thermal insulation structure is required on the upper surface of the housing 10, and the free space in the housing 10 satisfies such additional thermal insulation structure.

The latent heat storage coolant 20 may be made of an inorganic material such as an inorganic salt or an inorganic hydrate salt, an organic material such as paraffin, polyethylene or alcohol, or a mixed composition of an inorganic material and an organic material. However, it is not limited to these.

As an example of the mixed composition of the inorganic and organic compounds, water and urea or other additional additives are used to form an EUTECTIC POINT or CRYOHYDRIC POINT which is a freezing temperature.

Urea (UREA), which is used in the mixed composition of inorganic and organic substances, is a very large water-soluble substance, and when dissolved in water, a large amount is dissolved together with an exothermic reaction. Therefore, in the present invention, the latent heat storage coolant 20 in which urea is dissolved in water is basically used in the housing 10. Here, it is preferable that water is distilled water.

In addition, in the present invention, the latent heat storage coolant 20 to which one substance consisting of additives A _X B _Y is further added to the composition in which urea is dissolved in water may be filled and used in the housing 10.

In the above, A corresponds to the metal elements of lithium, sodium, magnesium, potassium, calcium, barium, B corresponds to Cl, CO ₃ , NO ₃ , SO ₄ , OH, COOH, X and Y is 1 or 2 to be.

Additives A _X B _Y dissolve in water to give an ionization state of cation and anion state, and have the effect of lowering the freezing point of the solution to which they are added.

In the present invention, a composition in which urea is dissolved in water may be used as the latent heat storage material 20 according to the use of the cold storage module 100.

May also be used as the additive material A _X B _Y axis latent naengjae 20 in addition to the above-described element is dissolved in water in applications where a lower phase change temperature required in the present invention compositions.

The interior of the housing 10 filled with the latent heat storage coolant 20 is preferably a negative pressure (-P). This is to prevent the expansion phenomenon in the lower surface or the side by the volume change during cooling of the latent heat storage coolant 20 as the material of the housing 10 is made of a composite material having a certain degree of rigidity and ductility.

The internal pressure of the housing 10 is formed by applying a negative pressure (-P) to the free space except for the space where the latent heat storage coolant 20 is filled in the housing 10.

Meanwhile, in the present invention, the filling amount of the latent heat storage coolant 20 is determined as a ratio of minimizing the deformation of the housing 10 according to the volume increase rate during cooling of the latent heat storage coolant 20 so that a free space is provided in the housing 10. . For example, the latent heat storage coolant 20 fills up to 90 to 95% of the internal volume of the housing 10.

The heat exchange pipe 30 is a tube through which a low-temperature refrigerant flows to cool the latent heat storage coolant 20 filled in the housing 10, and penetrates the housing 10.

As the heat exchange pipe 30 penetrates the housing 10, a leakage preventing member 31 is provided to prevent leakage of the latent heat storage coolant 20 inside the housing 10.

The leakage preventing member 31 is provided at a portion at which the side surface of the heat exchange pipe 30 and the housing 10 are coupled.

The heat exchange pipe 30 is provided with an inlet 34 through which a refrigerant flows in and an outlet 35 through which the refrigerant flows out, and a connection member for fastening with another pipe at the inlet 34 and the outlet 35. 32 and 33 are provided, respectively.

The connecting

members

32 and 33 are required to connect two heat exchange pipes to form the heat exchange pipeline 300 described later.

Meanwhile, in the present invention, the heat exchange pipeline 300 may be formed by fastening regardless of the directions of the inlet 34 and the outlet 35 provided in the cold storage module 100. This is because the structure of the cold storage module 100 as shown in Figures 1 to 4 is a symmetrical structure.

3 is a longitudinal cross-sectional view of a cold storage module according to an embodiment of the present invention, Figure 4 is a perspective view of a cold storage module according to an embodiment of the present invention.

3 and 4, the cold storage module 100 of the present invention is provided with a mesh metal (MESH METAL) 40 in the housing 10.

The mesh metal 40 evenly distributes the cold heat energy to the latent heat storage coolant 20 inside the housing 10.

The mesh metal 40 is a medium for uniformly transferring heat energy of the refrigerant flowing in the heat exchange pipe 30 to the latent heat storage coolant 20, and is formed of a metal material having a mesh shape in consideration of the total weight of the heat storage cooling module 100. do.

The mesh metal 40 is formed to be in direct contact with at least one end of the heat exchange pipe 30, and is generally distributed inside the housing 10.

Mesh metal 40 is made of a metal material. The mesh metal 40 is made of copper or stainless steel having high thermal conductivity.

7 is a diagram for explaining a phenomenon caused by the phase change of the latent heat storage material in the cold storage module. When the mesh metal 40 is not provided in the cold storage module 100, a low-temperature refrigerant flows through the heat exchange pipe 30. The latent heat storage coolant 20 is first cooled in the periphery.

Therefore, as the latent heat storage coolant 20 is first frozen around the heat exchange pipe 30, an ice film A is formed around the heat exchange pipe 30.

The freezing film A has a heat insulating effect to block heat radiation through the heat exchange pipe 30. Therefore, it becomes a factor which hinders the transmission of cold heat in the housing 10 as a whole.

8 is a diagram for explaining a phenomenon according to the phase change of the latent heat storage coolant in the heat storage module according to the present invention, the mesh metal 40 of the present invention is a latent heat storage coolant 20 around the heat exchange pipe 30 Even if the phase change phenomenon of the latent heat storage coolant 20 is transmitted evenly throughout the heat.

Accordingly, the frost film A is formed not only in the circumference of the heat exchange pipe 30 but also in the mesh metal 40 to transmit the cold heat so that the latent heat storage coolant is completely frozen in the heat storage module 100.

9 is a cross-sectional view of a refrigeration container equipped with a plurality of cold storage modules according to an embodiment of the present invention, Figure 10 is a cross-sectional view of a refrigerated container equipped with a plurality of cold storage modules according to another embodiment of the present invention.

11 is a diagram illustrating a structure in which a plurality of refrigeration modules are mounted in a refrigeration container vehicle according to an embodiment of the present invention, and illustrates a vehicle equipped with the refrigeration container shown in FIG. 9.

9 and 10 illustrate an example in which a plurality of unit storage modules 100 are arranged on the upper side of the refrigeration container 200.

The plurality of cold storage modules 100 are arranged in A column B rows. Hereinafter, a plurality of cold storage modules arranged above the freezing container 200, that is, the ceiling will be described as including first to N cold storage modules.

As in the present invention, by arranging the plurality of cold storage modules 100 in the upper portion of the refrigeration container 200, the heat dissipation effect can be enhanced than in the case of being disposed on the side or the bottom.

FIG. 9 illustrates an example in which eight unit storage modules 100 are arranged in four rows and two rows based on the location of the refrigerator 500. FIG. 10 illustrates eight unit storage modules 100 based on the location of the refrigerator 500. Referring to FIG. This is an example of two rows and four rows.

The arrangement structure or the number of mounting of the storage module 100 may be determined according to the ceiling area of the freezing container 200, it is not limited to a specific arrangement structure.

As the first to N storage modules are connected to each other in the refrigerating container 200, one heat exchange pipeline 300 through which a refrigerant flows is formed.

The heat exchange pipeline 300 is formed by connecting a heat exchange pipe between neighboring storage modules of the first to N storage modules. The heat exchange pipeline 300 includes heat exchange pipes respectively provided in the first to N storage modules, and further includes a U-shaped tube 310 connecting some of the storage modules to the first to N storage modules.

In the heat exchange pipeline 300, the neighboring cold storage modules are fastened and connected by connecting

members

32 and 33, but some cold storage modules may be fastened and connected by a U-shaped tube 310.

As the plurality of cold storage modules are arranged and fastened to each other, the heat exchange pipeline 300 has a curved zigzag shape by including at least one U-shaped tube 310 corresponding to the curved portion.

The refrigeration container 200 has a coolant inlet 210 formed at a side thereof to allow a coolant to flow from the outside, and a coolant outlet 220 formed to allow the coolant to flow outside. Here, the coolant inlet 210 and the coolant outlet 220 are provided to be connected to the freezer 500 provided outside the freezing container 200. In particular, the inlet of the heat exchange pipe provided in the first storage module of the first to N storage modules is connected to the refrigerant inlet 210, the outlet of the heat exchange pipe provided in the N storage module, the last storage module is the refrigerant outlet 220 )

The refrigerator 500 is connected to the refrigerant inlet 210 and the refrigerant outlet 220 through a connection pipe, and thus passes through the refrigerant inlet 210, the heat exchange pipes of the first to N storage modules, and the refrigerant outlet 220. The refrigerant is circulated through the heat exchange pipeline 300.

The refrigerator 500 is driven with surplus power such as midnight power to circulate cold heat through the heat exchange pipeline described above, thereby meeting efficient energy use.

As shown in Figure 11, by mounting the refrigeration container 200 equipped with a plurality of refrigeration module in the vehicle, it is possible to reduce the fuel economy loss of the refrigerated container vehicle. In addition, since the refrigeration is carried out by operating the refrigerator 500 separately provided at the outside of the night time zone, vehicle driving for the refrigeration is not required and no harmful gas is discharged.

According to the present invention, it is possible to maximize the heat energy transfer characteristics using a mesh metal. Accordingly, it is possible to quickly transfer the cold heat to the latent heat storage coolant to be filled evenly to the entire latent heat storage coolant, thereby reducing the accumulation time of the cold heat. That is, the provision of the mesh metal shortens the time for the latent heat storage coolant to reach the freezing temperature. This shortens the refrigerating cycle or the freezing cycle, which is advantageous for maintaining the freshness of the load.

While the preferred embodiments of the present invention have been described so far, those skilled in the art may implement the present invention in a modified form without departing from the essential characteristics of the present invention.

Therefore, the embodiments of the present invention described herein are to be considered in descriptive sense only and not for purposes of limitation, and the scope of the present invention is shown in the appended claims rather than the foregoing description, and all differences within the scope are equivalent to the present invention. Should be interpreted as being included in.

The present invention as described above can be widely applied to the case where the cold storage module is mounted on the refrigeration container and the vehicle on which the freezing container is mounted, as well as the cold storage freezer, refrigerator, freezing vehicle, freezing container, mobile refrigeration container, and the like.

Claims

A housing including a latent heat storage material therein;

A heat exchange pipe disposed through the housing and having a low temperature refrigerant flowing therein for cooling the latent heat storage material; And

A mesh metal distributing cold heat energy to the latent heat storage coolant in the housing;

Accumulation module, characterized in that it comprises a.
The method of claim 1,

The housing,

A cold storage module, characterized in that made of carbon fiber or graphite fiber or glass fiber material.
The method of claim 2,

The housing,

Any one of the carbon fiber, the graphite fiber and the glass fiber is a cold storage module, characterized in that the composite material combined with cyclic butylene terephthalate (CBT).
The method of claim 1,

The mesh metal is,

The cold storage module, characterized in that any one of a metal material including copper and stainless steel.
The method of claim 1,

At least one end of the mesh metal is a cold storage module, characterized in that formed in direct contact with the heat exchange pipe.
The method of claim 1,

The mesh metal is,

Accumulation module, characterized in that distributed throughout the interior of the housing.
The method of claim 1,

The heat exchange pipe,

And a connection member for fastening with another pipe at an inlet of the refrigerant and an outlet of the refrigerant.
The method of claim 1,

The heat exchange pipe,

A cold storage module, characterized in that any one of a metallic material containing copper and aluminum.
The method of claim 1,

The housing,

A refrigeration module, characterized in that it has a mounting portion that the upper surface opposite to the lower surface extending outward.
The method of claim 9,

The mounting portion,

And at least one fastening hole for allowing the storage module to be mounted in a target region.
The method of claim 1,

The housing,

And a longitudinal direction corresponding to a direction through which the heat exchange pipe passes, has a relatively longer length than a width direction.
The method of claim 1,

An air storage module according to claim 1, wherein air or an inert gas is injected into a free space except a space where the latent heat storage material is filled in the housing.
The method of claim 1,

And the internal pressure of the housing is a negative pressure.
The method of claim 1,

The latent heat storage coolant,

A cold storage module, characterized in that it is made of any one of an inorganic composition, an organic composition, and a mixed composition of the inorganic and organic compounds.
The method of claim 1,

The housing,

Cooling module, characterized in that the outer wall is formed of a periodic curved structure.
The method according to any one of claims 1 to 15,

The refrigeration container with a plurality of cold storage modules, characterized in that the plurality of cold storage modules are arranged on the upper side.
The method of claim 16,

The arranged plurality of cold storage modules include the first to N storage cooling modules,

The heat exchange pipes are connected between neighboring cold storage modules among the first to N cold storage modules to form a heat exchange pipeline through which the refrigerant flows from the first cold storage module to the Nth cold storage module. container.
The method of claim 17,

Refrigerant inlet is formed on the side of the refrigeration container and the refrigerant inlet is formed so that the refrigerant flows from the outside and the refrigerant outlet is formed to flow outside,

Refrigeration equipped with a plurality of refrigeration module, characterized in that the inlet of the heat exchange pipe provided in the first storage module is connected to the refrigerant inlet, the outlet of the heat exchange pipe provided in the N-th storage module is connected to the refrigerant outlet. container.
The method of claim 18,

The refrigerant inlet and the refrigerant outlet,

Refrigerating container equipped with a plurality of cold storage modules, characterized in that provided for the connection to the refrigerator provided on the outside of the freezing container.
The method of claim 17,

The heat exchange pipeline,

It includes a heat exchange pipe that is provided in each of the first to N storage module,

Refrigerating container equipped with a plurality of cold storage module, characterized in that further comprising a U-tube for connecting some of the cold storage module of the first to N storage modules.
The method according to any one of claims 16 to 20,

Refrigerating container vehicle, characterized in that the refrigeration container is mounted.