KR101784381B1 - Vessel for latent heat storage - Google Patents

Abstract

The present invention provides a vessel for latent heat storage, which comprises: a heat transmission unit formed to have a cylinder shape extended in one direction with a hollow portion, and having an accommodating space therein; and a latent heat storage material installed in the accommodating space. The heat transmission unit comprises: a plurality of first members formed to protrude on an outer circumference of the heat transmission unit, and spaced from each other in a circumferential direction; and a plurality of second members formed to protrude on an inner circumference of the heat transmission unit, and spaced from each other in a circumferential direction.

Description

{VESSEL FOR LATENT HEAT STORAGE}

The present invention relates to a latent heat storage container for improving heat transfer area.

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

At this time, the sensible heat storage is a method of utilizing the temperature rise of the material, which is a method of storing heat in water, sand or gravel. The latent heat storage is a transition of a phase change material (PCM) And a method of storing heat by using heat of fusion (latent heat).

In recent years, research and proposal of heat storage using a latent heat storage system having an advantage of a very large amount of heat capacity in a specific temperature range compared to a sensible heat storage system have been made.

In addition, since the storage capacity of thermal energy per unit volume and unit weight of phase change material (PCM) is large, the volume and weight of the phase change material (PCM) It is possible to perform heat storage and heat storage at a substantially constant temperature in a range suitable for the use temperature without abrupt temperature change.

The phase change material (PCM) used in the latent heat storage is defined as a latent heat material, a heat accumulating material, a cold storage material, and a heat control material. A phase change in which a solid changes into a liquid state at a certain temperature, Is the accumulation of heat energy or the release of stored thermal energy through the process (the physical process of changing the physical arrangement of molecules).

In addition, phase change materials can be broadly divided into organic materials and inorganic materials. Examples of the organic materials include hydrocarbon-based tetradecane, octadecane, and nonadecane, which are composed of carbon and hydrogen. Examples of inorganic materials include 6 And inorganic hydrate such as calcium chloride in the form of a hydrate in which water molecules are bonded.

As described above, the heat storage products using the phase change material (PCM) are used in the fields of food industry such as production, storage and distribution of agricultural products, aquatic products and livestock products, as well as in the fields of air conditioning for heating and cooling of buildings and specific spaces, Industrial fields, medical industry fields such as cell tissue transportation / storage and physiotherapy, and high-tech industrial fields such as automobile, aerospace or electric / electronic communication.

1 is a conceptual view showing a conventional heat transfer device.

As shown in Fig. 1, the conventional latent heat storage container 5 is formed in a spherical shape and stores a latent heat storage material therein.

The conventional latent heat storage material requires a considerable amount of containers in order to obtain a certain heat transfer area and fails to maximize fluid mixing performance and heat exchange performance and thus has a problem of low heat transfer efficiency.

In addition, the conventional latent heat storage material is encapsulated with metal, which has a problem of durability in which the capsule is fatigued by continuous heat radiation.

On the other hand, the conventional latent heat storage container has a problem that it is difficult to repair only the relevant portion when the latent heat storage container is broken.

It is an object of the present invention to provide a container that increases the heat transfer area to improve the heat transfer performance and also improves the heat exchange response speed.

It is another object of the present invention to provide a container that facilitates replacement of the module in case of breakage, thereby reducing the maintenance cost.

It is another object of the present invention to provide a container that reduces the pressure drop of the fluid during shaft heat dissipation and reduces the load upon fluid supply and drainage.

According to an aspect of the present invention, there is provided a latent heat storage container comprising: a heat transfer part having a cavity and a cylindrical shape extending in one direction and having a receiving space therein; And a latent heat storage material provided in the accommodation space, wherein the heat transfer part is protruded from the outer periphery of the heat transfer part, and is provided with a plurality of the first member spaced from each other in the circumferential direction; And a second member protruding from the inner periphery of the heat transfer portion and provided in a plurality of portions and spaced apart from each other in the circumferential direction.

According to an embodiment of the present invention, the plurality of heat transfer parts are spaced apart from each other in the one direction, and a connection member is provided between the plurality of heat transfer parts.

The connecting member includes: a coupling portion protruding from the both ends toward the heat transfer portion so as to be inserted into each end of the heat transfer portion; And an opening communicating with the hollow of the heat transfer portion provided on a side surface of the connecting member to enable the heat to flow.

The inner circumference of the heat transfer part is provided with a groove into which the engaging part is inserted, and the plurality of engaging parts may be provided at a predetermined interval in the circumferential direction from the inner circumference of the heat transfer part.

The second member includes a second end formed in the inner periphery of the second member and formed in a direction parallel to one tangent of the inner circumference of the heat transfer portion; And a second side portion formed on a side surface of the second member between the inner circumference of the heat transfer portion and the second end provided between the adjacent second members.

The grooves may be formed in the inner circumference of the heat transfer part provided between the second side parts respectively formed in the adjacent second members.

According to another embodiment of the present invention, the first member includes: a first end formed on the outer periphery of the first member and formed in a direction parallel to one tangent line of the outer periphery of the heat transfer portion; And a first side formed on a side surface of the first member between an outer periphery of the heat transfer part and the first end provided between the adjacent first members.

The latent heat storage container of the present invention can improve the heat transfer response speed by increasing the heat transfer area and improving the heat transfer performance by forming the first member and the second member on the outer periphery and the inner periphery, respectively.

Also, the latent heat storage container of the present invention provides a plurality of heat transfer parts and a connecting member provided therebetween, thereby facilitating the replacement of the heat transfer part at the time of breakage, thereby reducing the maintenance cost.

Meanwhile, the latent heat storage container of the present invention has a coupling part and an opening formed in the connecting member, thereby reducing the pressure drop of the fluid during heat dissipation and reducing the load during fluid supply and drainage.

1 is a conceptual view showing a conventional heat transfer device;
2 is a conceptual diagram showing the structure of a container and the movement of a fluid in another example of the present invention.
3 is an enlarged view of a portion A in Fig.
4 is a conceptual view showing the combination of the heat transfer portion and the connection member of Fig. 2;
Figure 5 is a perspective view and a cutaway view of the heat transfer portion of Figure 2;
Figure 6 is a perspective view of the connecting member of Figure 2;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like or similar elements are denoted by the same or similar reference numerals, and a duplicate description thereof will be omitted. The suffix "part" for the constituent elements used in the following description is to be given or mixed with consideration only for ease of specification, and does not have a meaning or role that distinguishes itself. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected or connected to the other element, although other elements may be present in between.

The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises ", or" comprising ", and the like, specify that the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof.

2 is a conceptual diagram showing the structure of the latent heat storage container 100 of another example of the present invention and the movement of the fluid. 2 is an enlarged view of a portion A in Fig. 2, Fig. 4 is a conceptual view showing the combination of the heat transfer portion 10 and the connecting member 30 in Fig. 2, Fig. 5 is a cross- ). Fig. 6 is a perspective view of the connecting member 30 of FIG.

Hereinafter, the latent heat storage container 100 of the present invention will be described with reference to FIGS. 2 to 6. FIG.

The latent heat storage vessel (100) of the present invention includes a heat transfer portion (10) and a latent heat storage material (20).

The heat transfer portion 10 is configured to transfer heat through the movement of the fluid. For example, the fluid may be water, and the heat is supplied or discharged by the latent heat when the state of the latent heat storage material 20 described later changes. However, the fluid of the present invention is not necessarily limited to water, but may be various fluids such as air and oil that can exchange heat with the latent heat storage material 20. The flow of the fluid of the present invention is represented by the upward direction arrows in Figs. 2 to 3, which is the fluid flow in the outer circumference and the inner circumference of the heat transfer section 10. Fig.

The heat transfer portion 10 is formed in a cylinder shape extending in one direction and having a hollow. In the present invention, one direction may be referred to as a direction in which the fluid moves, and may be referred to as a vertical direction in FIG. It also makes heat transfer possible by heat exchange with the fluid in the outer periphery of the heat transfer portion 10 and inside the hollow.

The hollow of the heat transfer section (10) is formed in the cylinder in parallel with the extending direction of the cylinder. For example, the hollow may be formed coaxially with the outer periphery of the cylinder.

Referring to Fig. 2, an example of a cylindrical heat transfer portion 91 is shown. In addition, the heat transfer portion 10 has an accommodation space 17 in which a latent heat storage material 20 to be described later can be accommodated. The accommodation space 17 refers to the inner space of the cylinder itself between the outer periphery and the inner periphery of the heat transfer portion 10. [ The heat transfer portion 10 may include at least a portion having a thin thickness between the outer periphery and the inner periphery so as to have the accommodation space 17. [ Referring to the incised surface of the heat transfer portion 10 of Fig. 5, an example is shown in which the accommodation space 17 is filled with the latent heat storage material 20.

The heat transfer portion 10 has first and second members 12, 14.

The first member 12 extends along one direction at the outer periphery of the heat transfer portion 10 and is formed to protrude. Further, the first members 12 are formed in plural and are spaced apart from each other in the circumferential direction of the heat transfer portion 10. [

The first member 12 may have a first end 12a and a first side 12b. The first end portion 12a may be formed in a direction parallel to the one tangent line at the outer periphery of the heat transfer portion 10 and the first side portion 12b may be formed between the outer periphery of the first end portion 12a and the heat transfer portion 10, And may be formed on the side surface of the first member 12. The first end portion 12a and the first side portion 12b are formed so that the surface area of the first member 12 is widened so that the latent heat storage material 20 in the heat transfer portion 10 is heated by the fluid of the outer periphery of the heat transfer portion 10 So that the area of contact with the wrist is widened.

The second member 14 extends along one direction from the inner periphery of the heat transfer portion 10 and is formed to protrude. In addition, the second members 14 are formed in a plurality and are spaced apart from each other in the circumferential direction of the heat transfer portion 10. [

The second member 14 may have a second end 14a and a second side 14b. The second end portion 14a may be formed in a direction parallel to the one tangent line at the inner periphery of the heat transfer portion 10 and the second side portion 14b may be formed between the second end portion 14a and the inner periphery of the heat transfer portion 10, And may be formed on the side surface of the second member 14. The grooves 15 may be formed on the inner circumference of the heat transfer part 10 at predetermined intervals in the circumferential direction on the hollow inner circumference of the heat transfer part 10. For example, The groove 15 may be formed between the second side 14b of the second member 14 and the inner periphery of the hollow and the engaging portion 33 of the connecting member 30 described later is coupled to the groove 15 .

The second end portion 14a and the second side portion 14b are formed by widening the surface area of the second member 14 in the same manner as the first end portion 12a and the first side portion 12b to form the heat transfer portion 10, The area of the latent heat storage material 20 in the heat transfer section 10 abuts against the fluid inside the heat transfer section 10 is widened.

With the above-described structure, the first and second members 12 and 14 increase the surface area of the latent heat storage material 20 in the outer periphery and the inner periphery of the heat transfer portion 10, respectively, thereby increasing the heat transfer area. This increases the heat exchange response speed.

The latent heat storage material 20 is filled in the accommodation space 17 inside the heat transfer portion 10. [ 5, an accommodation space 17 is provided in the heat transfer portion 10, and an example in which the latent heat storage material 20 is filled in the accommodation space 17 is shown in FIG. do.

Meanwhile, the heat transfer part 10 may be formed of a plurality of heat transfer parts 10, and a connection member 30 may be provided between the plurality of heat transfer parts 10. The plurality of heat transfer portions 10 are spaced from each other in one direction with the connecting members 30 therebetween. Referring to Figs. 2 to 4, an example of the connection members 30 disposed between the plurality of heat transfer portions 10 and the heat transfer portions 10 is shown.

The connecting member 30 has an engaging portion 33 protruding toward the heat transfer portion 10 to be inserted into each end of the heat transfer portion 10 and an opening 33 provided on a side surface of the connecting member 30, (35).

6, the connecting member 30 includes a supporting portion 32 extending in one direction, a coupling portion 33 provided at both ends of the supporting portion 32, a ring portion 34 connecting the supporting portions 32, And an opening 35 formed between the support portion 32 and the ring portion 34 to allow fluid to flow.

The engaging portion 33 may be provided at both ends of the support portion 32. The engaging portions 33 at both ends of the support portion 32 are inserted into the groove portion 15 formed at the end portion of the adjacent heat transfer portion 10, for example.

The opening 35 is made to communicate with the hollow of the heat transfer portion 10, so that the fluid is made flowable. Thus, external air can easily flow into and out of the hollow inner periphery of the heat transfer portion 10, thereby further improving the heat transfer efficiency.

4 and 6, the ring portion 34 and the support portion 32 are integrally formed. However, the ring portion 34 and the support portion 32 are not limited thereto, but may be formed of separate members.

The connecting member 30 is coupled between the heat transfer parts 10 so as to be detachable so as to connect the plurality of heat transfer parts 10 to each other. Therefore, when the heat transfer part 10 is broken, the heat transfer part 10 broken from the connection member 30 can be replaced, which is advantageous for maintenance.

The above-described latent heat storage container 100 is not limited to the configuration and the method of the embodiments described above, but the embodiments may be constructed by selectively combining all or a part of each embodiment so that various modifications can be made .

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

Claims (7)

A heat transfer part having a hollow shape and extending in one direction and having a receiving space therein; And
And a latent heat storage material provided in the accommodation space,
The heat-
A first member protruding from the outer periphery of the heat transfer part and provided at a plurality of positions and spaced apart from each other in a circumferential direction; And
And a second member protruding from the inner periphery of the heat transfer part and provided at a plurality of positions and spaced from each other in the circumferential direction,
Wherein the plurality of heat transfer parts are spaced apart from each other in the one direction, a connecting member is provided between the plurality of heat transfer parts,
The connecting member includes: a coupling portion protruding from the both ends toward the heat transfer portion so as to be inserted into each end of the heat transfer portion; And an opening communicating with the hollow of the heat transfer portion provided on a side surface of the connecting member to enable heat to flow therethrough,
Wherein a plurality of recesses are formed in an inner circumference of the heat transfer portion to receive the engaging portion, and the plurality of engaging portions are disposed at predetermined intervals in the circumferential direction of the heat transfer portion.
delete delete delete The method according to claim 1,
The second member
A second end formed in the inner periphery of the second member and formed in a direction parallel to one tangent line of the inner periphery of the heat transfer portion; And
And a second side portion formed on a side surface of the second member between the inner circumference of the heat transfer portion and the second end portion provided between the adjacent second members.
6. The method of claim 5,
Wherein the groove portion is formed on the inner circumference of the heat transfer portion provided between the second side portions formed respectively in the adjacent second members.
The method according to claim 1,
The first member includes:
A first end formed on an outer periphery of the first member and formed in a direction parallel to one tangent line of the outer periphery of the heat transfer portion; And
And a first side portion formed on a side surface of the first member between the outer circumference of the heat transfer portion and the first end portion provided between the adjacent first members.

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