KR20120069926A - Thermal accumulation implement with improved thermal transfer efficiency - Google Patents

Abstract

PURPOSE: A potential heat accumulator having improved heat exchange efficiency is provided for smooth heat exchange by applying a heat pipe principle and expanding heat exchanging area and improving thermal conduction property for guiding heat outside. CONSTITUTION: A potential heat accumulator having improved heat exchange efficiency comprises a case(110), a vinyl pack(120), and filling materials(130). The case comprises an upper structure(111) and a lower structure(112) having 'U' shape respectively and forms a closed storage by using the upper structure and lower structure. An inner folding part(121) is formed in the vinyl pack for supplying a room for expansion. Lower heat accumulating materials or high heat accumulating materials are filled in the vinyl pack according to the purpose of a user.

Description

A latent heat storage vessel with improved heat transfer efficiency {THERMAL ACCUMULATION IMPLEMENT WITH IMPROVED THERMAL TRANSFER EFFICIENCY}

The present invention relates to a latent heat storage container, and more particularly, to a latent heat storage container having a high heat transfer efficiency that enables selective application to heating or cooling, and enables heat transfer and heat transfer of heat energy stored in a more efficient and smooth manner. It is about.

In general, the storage of heat as internal energy of the medium is called heat storage, which can be divided into sensible heat storage and latent heat storage.

At this time, the sensible heat storage is a method of using the temperature rise of the material is a way of heat storage in water, sand or gravel, etc., the latent heat storage is a transition of phase change material (PCM) having a high heat storage density in a specific temperature range. And heat storage using a heat of fusion (which is called latent heat).

Recently, studies and proposals of heat storage using the latent heat storage method have a significant advantage in that the amount of heat storage in a specific temperature range is very large compared to the sensible heat storage method.

In addition, the latent heat storage method using a phase change material (PCM) has a large storage capacity of thermal energy per unit volume and weight of the phase change material (PCM), which can greatly reduce the volume or weight compared to the sensible heat storage as well as the temperature stratification phenomenon. It is not so severe that it provides the advantage of performing heat storage and heat radiation at a substantially constant temperature in a range suitable for the use temperature without sudden temperature change.

The phase change material (PCM) used for latent heat storage can be defined as a latent heat storage material, a heat storage material, a heat storage material, and a heat regulating material. Through the process (physical change process in which the physical arrangement of molecules is changed), heat energy is accumulated or released.

In addition, phase change materials can be broadly classified into organic materials and inorganic materials. Examples of organic materials include hydrocarbon-based tetradecane, octadecane, and nonadecan, which are composed of carbon and hydrogen. For example, an inorganic hydrate such as calcium chloride in the form of a hydrate in which two water molecules are combined.

As such, the heat storage products using PCM are used in the food industry, such as the production, storage, and distribution of agricultural products, aquatic products, or livestock products. It is used and applied throughout the industrial field, the medical industry such as cellular transport / storage or physical therapy, and the high-tech industry of automobile, aerospace, or electric and electronic communication.

Looking at the conventional latent heat storage products, for the convenience of use, heat storage or heat dissipation of heat or cold air by filling a heat storage medium (high temperature heat storage medium or low temperature heat storage medium), which is usually a phase change material (PCM) in a plastic container or a plastic resin pack. The expansion of the heat storage medium filled therein causes a problem such that the plastic container or the plastic resin pack is easily broken or torn, and the heat storage medium leaks.

In addition, the conventional latent heat storage products have a problem that the heat transfer efficiency is low, such as the heat transfer area is small or the heat resistance of the material does not perform smooth heat transfer, and the heat energy efficiency (hot or cold air) in the center is not utilized. .

The present invention has been made in view of the above-described problems, and can be selectively applied to heating or cooling, and the latent heat storage heat of which heat transfer efficiency (heat or cold air) can be more efficiently and smoothly transferred to the heat storage efficiency is improved. The purpose is to provide a container.

Another object of the present invention is to increase the surface area to increase the heat transfer area and to increase the heat conduction characteristics induced in the outward direction, by using the principle of the heat pipe to heat the heat energy (hot or cold) of the center to the surface side smoothly The present invention provides a latent heat storage container with improved heat transfer efficiency.

Another object of the present invention is to improve the convenience of use, and to provide a free expansion space during expansion in accordance with the phase change of the PCM to be filled in the latent heat to improve the durability by having a structure that is not easily broken It is to provide a heat storage container.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention by those skilled in the art.

The latent heat storage container of the present invention for achieving the above object, the upper structure and the lower structure having a recessed form facing each other, the inside is closed by bonding both sides of the upper structure and the lower structure by using an adhesive. Has a receiving space, the enclosure consisting of a rectangular structure; A plastic pack embedded in the accommodation space of the enclosure and having an inner fold forming portion for providing an expansion clearance; Filling the inside of the plastic pack, the filler is filled with a low temperature heat storage medium or a high temperature heat storage medium according to the purpose of use; Characterized in that it comprises a.

Preferably, it is disposed in the inner receiving space of the enclosure, is provided between the enclosure and the plastic pack close to any one side of the upper structure or the lower structure, the heat energy generated from the filler filled in the plastic pack in the vertical direction of the enclosure Insulating material to block the heat transfer to be made in only one of the directions; It may be configured to include more.

Preferably, the heat transfer induction pipe disposed on the upper side and the lower side so as to be in contact with the inner fold forming portion and the housing of the plastic pack; It may be configured to include more.

Preferably, it is disposed in the inner receiving space of the enclosure, is provided between the enclosure and the plastic pack close to any one side of the upper structure or the lower structure, the heat energy generated from the filler filled in the plastic pack in the vertical direction of the enclosure Heat insulating material to block the heat transfer only in one of the directions; And a heat transfer induction pipe which is disposed to face the arrangement of the heat insulator and is in contact with the plastic pack having the inner fold forming portion, and rapidly heat transfers and heat transfers to the surface side of the enclosure up to the heat energy of the center portion of the enclosure. It may be configured to include more.

Preferably, the heat transfer induction pipe may be provided in a closed loop structure of two rows of upper and lower rows so that heat energy of the center of the enclosure can be quickly transported to the surface of the enclosure.

Preferably, the upper structure and the lower structure constituting the enclosure, when used for heat transfer purposes may be composed of a metal material of copper or aluminum, and may be of a plastic material if it does not have a heat transfer purpose.

Preferably, the heat transfer medium filled in the heat conductive pipe may be selected from alcohol, methyl alcohol, ethylene butyrene, antifreeze, refrigerant.

According to the present invention, it is possible to selectively apply to heating or cooling, as well as to increase the heat transfer area by increasing the surface area compared to the conventional structure to increase the heat conduction characteristics to induce the outward direction, the heat energy stored in the heat storage container More efficient and smooth heat transfer can be provided, it is possible to provide a latent heat storage container that can increase the surface-side heat generation efficiency by improving the heat transfer efficiency.

The present invention can be configured so that the heat transfer in only one direction by using a heat insulator, heat transfer efficiency to the surface side to the heat energy from the center of the heat storage vessel to the surface side by using the principle of the heat pipe to the heat transfer efficiency to the outside It can increase.

The present invention can increase the convenience of use and storage, and can improve durability with a structure that is not easily broken by providing an expansion clearance during expansion due to the phase change of the PCM to be filled inside.

The present invention is applied to various industrial fields for heating and cooling such as ice storage heat cooling or latent heat storage air-conditioning equipment, boilers, air conditioners, ice packs, thermostats, vests and garments to apply heat storage containers, transportation means such as automobiles, aircraft or railroads. In particular, in ice heat storage cooling or latent heat storage air-conditioning facilities, the size and shape of the heat storage tank can be freely designed, as well as easy to repair and can be useful in that the container can be replaced during use.

1 is an external perspective view showing a latent heat storage container according to a preferred embodiment of the present invention,
2 is a cross-sectional view showing a latent heat storage container according to a preferred embodiment of the present invention,
3 is a cross-sectional view showing a latent heat storage container showing another embodiment according to the present invention,
Figure 4 is a cross-sectional view showing a latent heat storage container showing another embodiment according to the present invention,
5 is a perspective view showing a heat transfer induction pipe to which the closed loop configuration is applied in the present invention;
6 is a cross-sectional view showing a latent heat storage container having the mixed arrangement design structure of FIGS. 3 and 4 in the basic configuration of FIG. 2 according to the present invention.

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

1 is an external perspective view showing a latent heat storage container according to a preferred embodiment of the present invention, Figure 2 is a cross-sectional view showing a latent heat storage container according to a preferred embodiment of the present invention.

As shown in FIGS. 1 and 2, the latent heat storage container 100 having improved heat transfer efficiency according to the present invention has an accommodation space closed therein by joining the upper structure 111 and the lower structure 112 in the form of a recess. The plastic pack having a housing 110 and an inner fold forming portion 121, which is embedded in the receiving space of the housing 110 and folded one side portion inwardly disposed, and the inside of the plastic pack 120 And a filler 130 filled as a low temperature heat storage medium or a high temperature heat storage medium.

The upper structure 111 and the lower structure 112 constituting the housing 110 is a structure formed in the form of a depression having both sides of the bent side in order to increase the heat transfer area while providing ease of joining, the upper structure 111 ) And the substructure 112 are disposed to face each other, but the substructure 112 is inserted into the upper structure 111 side or vice versa.

The upper structure 111 and the lower structure 112 is formed of a rectangular structure having an inner closed receiving space by joining the bent side surfaces of both sides facing each other in a state where they are inserted into each other using an adhesive 113. 110 will be formed.

In this case, the enclosure 110 may increase the surface area according to the formation of the rectangular structure to facilitate heat transfer and provide convenience of use.

Here, the adhesive 113 is preferably used to provide a strong durability through the bonding strength that can withstand even minus 20 ~ 30 ℃, such as using an epoxy resin-based hot melt, the adhesive 113 is an enclosure Exhibits the heat insulation function to block the escape of the thermal energy to both sides of the (110). Of course, the adhesive 113 may also block leakage of the filler 130 that may be generated.

When the upper structure 111 and the lower structure 112 are both used for the purpose of heat transfer, it is composed of a metal material of copper or aluminum excellent in heat transfer.

At this time, the upper structure 111 and the lower structure 112 is provided for the purpose of heat transfer, the heat energy generated from the filler 130 having the heat storage energy of cold or warm air to the outer direction of the enclosure 110 by the heat transfer characteristics The heat transfer is to increase the thermal efficiency of the externally released heat.

Here, the housing 110 may be provided as a shock-resistant container because it is made of a metal material, it can provide convenience of use and storage through the formation of a rectangular structure.

The plastic pack 120 has an inner fold forming portion 121 through folding in the inward direction, thereby achieving size reduction and expanding according to the phase change of the filler 130 filled in the plastic pack 120. It is possible to provide a free space for expansion.

Thus, the plastic pack 120 can be easily covered by the expansion clearance through the inner fold forming portion 121 during expansion due to the phase change of the filler 130 composed of a phase change material (PCM). It can be prevented from being torn or the housing 110 easily broken.

The inner fold forming portion 121 of the plastic pack 120 may be formed in two or more places by folding the plastic pack 120 in the inner direction, as an example, as shown in the example of Figure 4, one side and the other direction Fold inwardly in each can be formed into two balanced.

The filler 130 may select and use a low temperature heat storage medium or a high temperature heat storage medium, which is a phase change material (PCM) that is commercially available according to the purpose of cooling or heating the latent heat storage container 100 of the present invention.

That is, the latent heat storage container 100 having a cross-sectional configuration as shown in Figure 2 comprises a housing 110 for providing ease of use and ease of heat transfer through the shape improvement to the rectangular structure for the heat storage container, The heat energy of the warm or cold air generated from the filler 130 is to be able to smoothly transfer heat to both sides of the vertical structure through the upper structure 111 and the lower structure 112.

On the other hand, in the latent heat storage container 100 of the present invention, the upper structure 111 and the lower structure 112 constituting the enclosure 110 may be changed and modified according to the purpose of use, Figure 3 Referring to the cross-sectional view showing a latent heat storage container showing another embodiment, it moves the heat energy of hot or cold air generated from the filler 130 filled in the plastic pack 120 toward the lower structure 112. It is configured to allow heat transfer in only one direction through heat transfer through the substructure 112, wherein the substructure 112 having a heat transfer purpose is composed of a metal material of copper or aluminum. And, the superstructure 111 located in the other direction does not have the purpose of heat transfer is made of a plastic material.

In addition, disposed in the inner receiving space of the enclosure 110, the heat insulating material 140 is provided to be in close contact with the inner surface of the upper structure 111, the heat insulating material 140 is the upper structure 111 and the plastic pack 120 As provided between the, the heat energy of the warm or cold air generated from the filler 130 filled in the inside of the plastic pack 120 to block the movement and transfer to the upper structure 111 side.

Here, it will be apparent that such a heat insulating material 140 may be provided between the lower structure 112 and the plastic pack 120 on the contrary.

That is, the heat insulating material 140 is provided on any one side of the inner receiving space of the enclosure 110 to block heat transfer in the provided direction so that heat transfer can be concentrated only in another direction where the heat insulating material 140 is not disposed. do.

At this time, the heat insulating material 140 may be preferably provided with a heat insulating material having elasticity to absorb the expansion pressure during expansion according to the phase change of the filler 130 consisting of a phase change material (PCM), rubber material Or urethane foam, and the like, for example, it is possible to prevent the plastic pack 120 is easily torn or the housing 110 is easily broken with the purpose of the thermal barrier.

On the other hand, Figure 4 is a cross-sectional configuration diagram showing another embodiment of a latent heat storage container according to the present invention, by further comprising a heat transfer induction pipe 150 in the technical configuration of Figure 2 as described above by the heat storage container 100 The heat energy in the center of the induction and transfer to the outside direction to further improve the heating efficiency to the outside for cooling or warming, by applying the principle of the heat pipe filler on both the top and bottom surfaces of the heat storage container 100 The heat transfer from the center to the heat energy generated at 130 is faster.

In other words, the technical configuration shown in Figure 4, the inner folding forming portion 121 of the plastic pack 120 is located in the center of the housing 110 to form one or more places to correspond to the left and right and spaced apart in the vertical direction, The heat transfer induction pipe 150 formed of a closed loop structure of two rows of upper and lower arrays as shown in FIG. 5 and filled with a heat transfer medium is disposed on the plastic pack 120 and the housing 110 having the inner folded portion 121. It consists of a configuration in which one more each disposed on the upper side and the lower side to contact.

At this time, the heat transfer medium filled in the heat conduction pipe 150 may be alcohol, methyl alcohol, ethylene butyrene, antifreeze, refrigerant, and the like, the viscosity and high heat transfer and heat transfer efficiency in the temperature range of -30 ~ 80 ℃ Less fluid can be used.

That is, the technical configuration of Figure 4, through the upper heat transfer pipe 150 is filled with a heat transfer medium to induce heat transport and heat transfer in the upper direction of the heat energy generated in the filler 130 in the heat storage container 100 It is to enable fast heat transfer to the upper structure (111) side forming the surface of the), and through the lower heat transfer pipe 150 to induce heat transport and heat transfer rapidly in the downward direction the central energy generated from the filler 130 It is to enable fast heat transfer to the side of another substructure 112 forming the surface of the heat storage container (100).

On the other hand, Figure 6 is a cross-sectional view showing a latent heat storage container designed by mixing the heat insulating material configuration of Figure 3 and the heat transfer induction pipe configuration of Figure 4 in the basic configuration of Figure 2 according to the present invention, as shown in FIG. Likewise, the plastic pack is disposed in the inner receiving space of the enclosure 110 formed by the joining of the upper structure 111 and the lower structure 112, and the heat insulating material 140 is provided between the upper structure 111 and the plastic pack 120. The heat energy generated from the filler 130 filled in the interior of the 120 is configured to be heat transfer only to the lower structure 112 side of the housing 110.

In addition, the lower structure of the plastic pack 120 and the housing 110 having the inner fold forming portion 121 of the heat transfer induction pipe 150 formed of a closed loop structure of two rows of upper and lower columns and filled with a heat transfer medium therein ( By arranging to be in contact with 110, the heat energy generated in the upper part and the central part generated from the filler 130 may be configured to be rapidly transported and transferred to the lower structure 112 side.

That is, such a mixed configuration of Figure 6, the heat insulating material 140 is provided so as to be in close contact with the upper structure 111 side of the enclosure 110 to block the heat transfer to the upper structure 111 side of the enclosure 110 thermal energy While inducing the emission of only to the lower structure 112 side, and at the same time through the heat transfer and heat transfer of the heat transfer induction pipe 150 applying the principle of the heat pipe heat energy of the upper and central parts to the lower structure 112 faster heat It is intended to be transported and heat transfer.

The latent heat storage container 100 according to the present invention is an ice storage heat-cooling or latent heat storage air-conditioning facility, a boiler, an air conditioner, an ice pack, a thermostat vest or a garment, an automobile, an aircraft, a railroad, etc. to which the heat storage container is applied. It can be used in various industrial fields for air conditioning and heating such as transportation.

In particular, in the ice heat storage cooling or latent heat storage air-conditioning facilities, the size and shape of the heat storage tank can be freely designed as well as easy to repair, and can provide usefulness in that the container of the heat storage tank can be replaced during use.

It will be appreciated by those skilled in the art that changes may be made to the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

100: latent heat storage container 110: enclosure
111: superstructure 112: substructure
113: adhesive 120: plastic pack
121: inner fold forming portion 130: filler
140: heat insulating material 150: heat transfer pipe

Claims (7)

The upper structure 111 and the lower structure 112 having a recess shape are disposed to face each other, and the adhesive structure is used to bond the both sides of the upper structure and the lower structure to have a receiving space closed inside, and the rectangular structure Enclosure 110 made of;
A vinyl pack 120 embedded in the accommodation space of the enclosure 110 and having an inner folding portion 121 formed therein for providing an expansion clearance; And
A filler 130 filled in the vinyl pack 120 and filled with a low temperature heat storage medium or a high temperature heat storage medium according to a purpose of use; A latent heat storage container having a higher heat transfer efficiency, comprising a.
The method of claim 1,
It is disposed in the inner receiving space of the enclosure 110, is provided between the enclosure 110 and the plastic pack 120 is disposed in close contact with any one side of the upper structure 111 or the lower structure 112, the plastic pack 120 Insulation material 140 to block the heat energy generated in the filler 130 is filled in the interior of the housing 110 to the heat transfer only in any one of the up and down directions; A latent heat storage container having a higher heat transfer efficiency, further comprising a.
The method of claim 1,
A heat transfer induction pipe 150 disposed at an upper side and a lower side of the vinyl pack 120 so as to be in contact with the inner fold forming part 121 and the housing 110; A latent heat storage container having a higher heat transfer efficiency, further comprising a.
The method of claim 1,
It is disposed in the inner receiving space of the enclosure 110, is provided between the enclosure 110 and the plastic pack 120 is disposed in close contact with any one side of the upper structure 111 or the lower structure 112, the plastic pack 120 Insulation material 140 to block the heat energy generated in the filler 130 is filled in the heat transfer in only one of the vertical direction of the housing 110; And
Positioned opposite to the arrangement of the heat insulating material 140, provided to contact the plastic pack 120 and the housing 110 having the inner folding forming portion 121, the housing 110 to the thermal energy of the central portion of the housing 110 A heat transfer pipe 150 for rapidly heat transfer and heat transfer to the surface side of the; A latent heat storage container having a higher heat transfer efficiency, further comprising a.
The method according to claim 3 or 4,
The heat transfer pipe 150,
The latent heat storage container of which the heat transfer efficiency of the enclosure 110 is provided in a closed loop structure of two rows of upper and lower columns so that heat energy of the central portion can be quickly transported to the surface of the enclosure.
The method of claim 1,
The upper structure 111 and the lower structure 112 constituting the enclosure 110,
When used for heat transfer purposes consists of a metal material of copper or aluminum,
The latent heat storage container with improved heat transfer efficiency, characterized in that consisting of a plastic material if it does not have a heat transfer purpose.
The method according to claim 3 or 4,
The heat transfer medium filled with the heat transfer pipe 150 is any one of alcohol, methyl alcohol, ethylene butyrene, antifreeze, refrigerant is selected latent heat storage efficiency, characterized in that the heat transfer efficiency.

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