KR101974489B1 - Heating Control Unit-panel for Water Storage Tanks - Google Patents

Abstract

The present invention relates to a water tank formed with a heating control unit panel, wherein a heat reserving heat capacity of the water tank is increased to minimize a change in a temperature of water stored in the water tank, and instead of linear heat reserving heat storage, through latent heat accumulation at a specific temperature, a rapid change in a temperature in the water tank is prevented to prevent dew condensation caused by temperature between the inside and the outside of the water tank, and minimize a change in water quality in accordance with a change in a water temperature.

Description

{Heating Control Unit-panel for Water Storage Tanks}

The present invention relates to a water tank in which a heat generating control unit panel using an exothermic metal material is assembled. More particularly, the present invention relates to a water tank in which a heat generating metal material To a water tank incorporating a unit panel attached inside the unit panel.

A prefabricated water tank using a unit panel is used as a water tank, a high-priced tank or an underground water tank, which is installed in a building where many living water is used, such as a residential apartment and a business building, and can store a large amount of water.

Such a water tank is formed by cutting a unit panel of a predetermined thickness into a predetermined standard by using a metal material such as stainless steel and a composite material such as SMC, press forming and bending to form a bent portion at the center, Thereby forming a unit panel. The unit panels are assembled in the form of a hexahedron by fastening means such as welding or bolts and nuts in close contact with the ribs formed on each side and are reinforced so as to withstand loads of water stored inside or outside the water tank .

In addition, it is possible to prevent condensation from occurring on the surface of the unit panel due to the temperature difference between the inside and the outside of the water tank outside the water tank constructed by joining the unit panels together as described above, A heat insulating material for protecting the outside of the tank is formed.

Such a heat insulating material is formed by foaming a heat insulating layer of synthetic resin on the outer surface of the panel and protecting it with a heat insulating portion in close contact with a protective cover for protecting the heat insulating layer. Such a conventional heat insulating material has a problem that the insulating layer of the synthetic resin is foamed and the protective cover is fixed to the insulating layer in a state where the heat insulating layer is assembled to the panel, If it is not fixed, it is necessary to fix the heat insulating layer after fixing the fixed heat insulating layer, so that productivity and economical efficiency are deteriorated.

Published Patent Application No. 10-2004-0108233

In order to minimize the temperature change of the water stored in the water tank, the present invention proposes a method of increasing the heat retaining capacity of the water tank so as not to store the linear retaining heat, The present invention provides a water tank comprising a heating control unit panel that prevents sudden temperature changes and prevents condensation due to a temperature difference between inside and outside of a water tank and minimizes changes in water quality due to changes in water temperature.

In order to achieve the above object, the present invention provides a water tank comprising a heat control unit panel according to the present invention, wherein a unit panel, which is assembled in close contact with each other in a bent state, As an apparatus, a heat insulating material is formed on one side surface of a panel plate, a heat generating metal material is formed on one side or both sides of the heat insulating material, and a heat insulating cover is formed on one side of the heat generating metal material. The heat generating control unit panels thus formed are combined and assembled together to form a water tank.

In addition, the heat generating control unit panel according to the present invention is characterized by comprising a phase change material in addition to the exothermic metal material, and impregnating the phase change material with a heat storage material integrally formed with the nonwoven fabric.

According to the present invention, the exothermic metal material is formed of a metal material such as copper or the like having a high heat transfer rate and is formed into a lattice shape or a perforated shape to be coupled to the inside of the unit panel, and the heat storage of the water tank using the phase- The temperature inside the water tank is maintained at a predetermined condition by delaying the temperature change at a specific temperature (i.e., the phase transition temperature) by using the characteristics of the latent heat, rather than storing or releasing the heat linearly, It is possible to prevent the generation of condensation by the condenser.

1 is a sectional view of a heat generation control unit panel according to the present invention.
Fig. 2 shows a first embodiment of a heat control unit panel section according to the present invention.
Fig. 3 shows a second embodiment of a heat control unit panel section according to the present invention.
Fig. 4 shows a third embodiment of a heat generating control unit panel section according to the present invention.
FIG. 5 is a view showing the overall configuration of a solar energy control system using a heating metal according to the present invention and a heat control unit panel made of the same.

The present invention relates to a water tank comprising a heat storage unit panel capable of maintaining a temperature of liquid stored in a water tank at a constant level, and an embodiment of the present invention will be described in detail with reference to the drawings. Basically, as shown in FIG. 1, the heat storage unit panel is formed with a rib 120 bent in a bent state, and the heat insulating cover 400 is integrally joined with the bent rib 120.

1 is a sectional view of a thermal storage unit panel according to the present invention. As shown in FIG. 1, the panel according to the present invention is made of a metal material such as stainless steel or a composite material such as SMC. A specific structure of the unit panel made of the above material will be described as follows. A panel plate 110 is formed on one side of the unit panel and a heat insulating material 200 is attached to one side of the panel panel 110. A heat generating metal 600 is attached to one side of the heat insulating material 200, And a heat insulating cover 400 is attached to one side of the heat insulating material 200. A coupling member 410 for coupling the end of the thermal insulation cover 400 and the bent rib 120 is integrally manufactured.

The heat insulating material 200 and the heat generating metal 600 and the heat insulating cover 400 are formed on the inner surface of the panel plate 110 and the outer surface of the heat insulating material 200, They are formed in the same size and adhered tightly to each other.

The heat insulating material 200 is bonded to one side of the exothermic metal 600 and has various structures and materials such as styrofoam, urethane foam, urea foam, air cap film, etc., It is not limited to the insulating material 200 of the structure or the material.

The exothermic metal (600) is provided on the inner side of the panel plate (110) to form a plurality of pores as a conductive material of a metal material, a thin plate having a grid pattern, a through polygon or a circular shape, or a porous or concave structure It is possible to realize a shape that maximizes the heat collection effect. Also, the cross section of the exothermic metal 600 may be formed in a honeycomb shape, a lattice shape, or a square shape, though it is not shown in the drawings, and these structures may be formed in such a manner that both surfaces of the exothermic metal are brought into contact with each other, It is possible to effectively heat the collected heat to the outside of the unit panel.

A heat storage material sheet 300 may be attached to one side or both sides of the heat generating metal 600 or the heat generating metal 600 and the heat insulating material 200.

The heat storage material sheet (300) is impregnated with a heat storage material (320) made of a phase change material in the substrate (310). Further, the substrate 310 is used as a substrate by selecting one of materials such as a nonwoven fabric, a woven fiber, a mesh, a metal sponge, a porous paper, and a polymer sheet. In the present invention, there is an embodiment using a nonwoven fabric as a base material.

The phase change material forming the heat storage material 320 may be any one selected from paraffin, stearic acid, beeswax, glycerin, polyester gum, and polyethylene glycol. The heat storage capacity of the phase change material is different depending on the amount of the blending design, but the heat storage capacity is 100 kJ / kg to 250 kJ / kg.

Fig. 2 shows a first embodiment of the joint formation in detail for each structure as shown in Fig. 1 above.

≪ Embodiment 1 >

As shown in FIG. 2, the heating control unit panel includes a panel plate 110 forming one side surface of the unit panel, a heat storage material sheet 300 formed on the inner surface of the panel plate 110, A heat generating metal 600 is coupled to one side of the heat storage material sheet 300 and a heat insulating material 200 and a heat insulating cover 400 are sequentially connected to the side surface of the heat storage material sheet 300. The position of the heat storage material sheet 300 may be formed between the panel plate 110 and the heat generating metal 600 or between the heat generating metal 600 and the heat insulating material 200.

≪ Embodiment 2 >

As shown in FIG. 3, the heat generating control unit panel includes a panel plate 110 forming one side surface of the unit panel, a first heat storage material sheet 310 disposed on the inner surface of the panel plate 110, A heat storage metal 600 is coupled to one side of the first heat storage material sheet 300 and a second heat storage material sheet 320 is coupled to the side surface of the first heat storage material sheet 300. On one side of the heat storage material 200, (400) may be sequentially combined.

≪ Third Embodiment >

As shown in FIG. 4, the heat generating control unit panel includes a panel plate 110 forming one side surface of the unit panel, a first heat generating metal 610 formed on the inner surface of the panel plate 110, A second heat generating metal 620 is coupled to the other side of the heat insulating material 200 and a heat insulating cover 400 is sequentially formed on the outer side of the first heat generating metal 610, As shown in FIG.

A separate adhesive layer may be formed on the combination of the components shown in FIGS. More specifically, a joint forming portion between the heat insulating material 200 and the heat insulating cover 400 in FIG. 1, a joint forming portion between the panel plate 110 and the heat storage material sheet 300 in FIG. 2, a heat insulating material 200, The adhesive layer may be formed so as to completely bond it to the bond forming portion between the electrodes. 3 to the joint forming portion between the panel plate 110 and the first heat storage material sheet 310 and the joint formation portion between the second heat storage material sheet 320 and the heat insulating material 200 and the heat insulating cover 400 An adhesive layer may be formed on each of the bonding portions in order to complete bonding.

The thermal insulation material 200, the heat storage material sheet 300 and the thermal insulation cover 400 are formed on the inner surface of the panel plate 110, the thermal insulation material 200, the thermal storage material sheet 300, Are formed in the same size and are tightly fixed.

The heat insulating material 200 is bonded adjacent to the exothermic metal 600 or the heat storage material sheet 300 and has a variety of structures and materials such as styrofoam, urethane foam, urea foam, air cap film, And the present invention is not limited to the insulating material 200 of a specific structure or material.

The heat storage material sheet (300) is impregnated with a heat storage material made of a phase change material on a substrate. The substrate is also used as a substrate by selecting one of materials such as nonwoven fabric, woven fiber, mesh, metal sponge, porous paper, and polymer sheet. In the present invention, there is an embodiment using a nonwoven fabric as a base material. Here, the nonwoven fabric may be selected from a metal sponge such as an aluminum sponge, a porous paper having a large specific surface area, or a woven fiber.

The heat storage material usually uses a phase change material. The phase change material uses a phase change material selected from among paraffin, stearic acid, beeswax, glycerin, polyester gum, and polyethylene glycol. The heat storage capacity of the phase change material is different depending on the amount of the blending design, but the heat storage capacity is 100 kJ / kg to 250 kJ / kg.

Although not shown in the drawings, a surface layer may be formed on one side of the inside of the exothermic control unit panel, and the surface layer may be formed of aluminum having a high heat transfer rate as an agent for transferring heat between the object to be absorbed or desorbed Copper, or the like. Specifically, the surface layer is a medium that is stacked on one side of each of the panel plate 110 and the heat insulating cover 400 to transfer heat between the object and the adhesive layer to absorb or desorb heat, But it is generally preferable to use an aluminum thin film or a copper thin film. The surface layer which is a heat-conductive and heat-absorbing sheet can be formed by laminating either an aluminum thin film or a copper thin film on one surface or both surfaces of a heat storage material sheet.

Also, although not shown in the present invention, a release layer may be laminated on the heat storage material sheet 300 and the outer surface of the surface layer. The release layer protects the heat storage material sheet 300 impregnated with the phase change material and the respective adhesive layers formed on both sides of the surface layer, and maintains the adhesive performance during transportation and storage, It is preferable to use a conventionally used release paper in the art. The pressure-sensitive adhesive sheet according to the present invention having such a constitution can be used in the form of a sticker which can be repeatedly attached to the use site depending on the physical properties of the pressure-sensitive adhesive formed therein, and if necessary, After the release layer formed on both sides of each adhesive layer is removed like a double-sided tape, heat can be absorbed or released by contacting a heat source on both sides of the respective adhesive layers.

The thickness of each of the adhesive layers is preferably from 5 to 500 mu m. When a large amount of heat-changeable material to be generated or absorbed by the object is required, the adhesive layers may be laminated into a plurality of layers, The unit sheet having the surface layer may be formed of a plurality of layers.

Details of the heat storage material sheet 300 commonly used in FIGS. 1 to 3 are as follows. The heat storage material sheet 300 is formed by impregnating a substrate such as a nonwoven fabric with a heat storage material made of a phase change material (PCM). The impregnation is a method in which a storage material and an aqueous resin having adhesiveness are mixed in a liquid state to be infiltrated into a substrate, and the impregnated regenerant material is hardened together with an aqueous resin to form a soft sheet. In this case, the amount of the phase change material to be impregnated can be adjusted by selecting a combination according to the intended use in a range of 1 kg to 3 kg per unit area of the nonwoven fabric. The heat storage material sheet 300 of the present invention includes the characteristics of a phase change material formed by impregnating a base material with a heat storage material made of a phase change material. A phase change material is a substance that changes its state from solid to liquid or from liquid to solid as the temperature changes and stores or releases heat. The phase change material exists in a solid state at a temperature lower than the melting point, and when the thermal energy is applied, the solid state is not changed but the temperature is raised. Likewise, the phase change material exists in a liquid state at a temperature higher than the melting point, and when the thermal energy is applied, the liquid state does not change but the temperature becomes higher. The heat that accompanies the rise of temperature is called sensible heat. Also, the phase change material is a state in which solid and liquid coexist at a temperature corresponding to the melting point. Even if thermal energy is applied, this heat is used only for the state change, but the temperature change does not occur. This heat is called latent heat.

Latent heat, as such, is the heat that absorbs or releases the state of a substance when it transitions (ie, from solid to liquid, from liquid to solid, from liquid to gas, from gas to liquid). Generally, latent heat is larger than sensible heat (that is, the heat absorbed or released according to the temperature change in the state where no phase transition occurs). For example, in the case of water, it absorbs 80 ㎈ (335J) of heat per gram when it becomes water (liquid) at 0 캜 (solid), which is equal to the amount of heat required to raise the same amount of water from 0 캜 to 80 캜 .

The present invention uses such a heat generating metal material and a phase change material in combination with a unit panel of a prefabricated water tank to increase the heat retaining heat capacity of the water tank and not to save or discharge heat linearly, The temperature change is delayed at the temperature (i.e., the phase transition temperature) so that the room temperature is maintained in a comfortable condition.

The optimal storage temperature of liquids such as water stored in a water tank is not specified. However, when the place and purpose of use is changed, the appropriate temperature varies, so it is necessary to change the temperature. The phase transition temperature and the heat storage capacity of the phase-change material are inherent characteristics of the material. Therefore, materials suitable for the purpose of use may be selected and used. The heat storage structure of the water tank according to the present invention mainly uses a paraffin-based phase change material as a heat storage material of the heat storage material sheet. Paraffin-based phase change materials have various melting points, condensation points, and heat storage capacities, so you can select the appropriate materials according to your situation.

In order to confirm the heat storage characteristics of the phase change material used in the heat storage structure of the water tank unit panel of the present invention, a unit panel including a phase change material in the form of a heat storage material sheet was manufactured and the chamber was used for the experiment. Experimental results show that the PCM unit panel with the heat storage material sheet has a temperature of about 1.5 ° C lower than that of a general board when the chamber temperature rises, and gradually decreases the temperature when the chamber temperature is lowered. As described above, a general unit panel without a heat storage material sheet stores or emits heat in a linear fashion, so that the temperature changes rapidly. However, in the PCM unit panel provided with the heat storage material sheet, the phase change material is heated in the form of latent heat So that the temperature change is delayed. That is, the water tank assembled by the PCM unit panel has an advantage that the heat storage temperature is kept relatively constant.

On the other hand, if the heat retaining heat capacity of the water tank is high, the temperature inside the water tank does not change abruptly but gradually changes over a certain period of time. However, if a structure with a high heat capacity is designed as an internal heat, the effect of the heat capacity of the structure can not be obtained.

Up to now, a unit panel using a phase change material according to the present invention and a heat storage and heating structure of a prefabricated water tank using the unit panel have been described. Although the present invention has been described with reference to preferred embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is not intended to limit the scope. It is to be understood by those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

FIG. 5 is a view showing the overall configuration of a solar energy system using a heating metal 600 according to the present invention. As shown in FIG. 5, the present invention includes a solar panel 10 for receiving sunlight to produce electric power, a solar panel 10 for storing electric power generated by the solar panel 10, A converter for converting the electric power transferred from the solar panel 10 or the electric storage device 20 supplied to the heating metal 600 to heat energy and a temperature controller for controlling the temperature, A temperature control unit 40 which is set at a predetermined temperature, a power control unit 40 which receives power directly from the solar panel 10 or the electric storage device 20 and receives control under the control of the control unit 30 including a converter function, And an exothermic metal 600 that receives the heat converted from the electrothermal transducer 50 and emits the conducted heat.

The solar panel 10 is a panel that receives solar light to produce electric power and stores electricity in the electric storage device 20, and supplies power to the heat-generating metal, which will be described below, And can be used regardless of the seasons as well as the night.

The electric storage device 20 may store electric power generated from the solar panel 10 or discharge the stored electric power to the system load. In one embodiment, the electric storage device 20 is installed in a plurality of unit panels that combine water tanks Power is supplied to the exothermic metal 600 to convert it into heat. In addition, when the electric storage device 20 stores the inputted electric power, and when the electric power is not produced in the solar cell, when the system load requires a larger amount of electric power than the electric power produced from the solar stop, Way converter that discharges to the system load through a bidirectional DC / DC converter or a DC / AC converter, thereby enabling a stable power supply.

The temperature control unit 40 has a bidirectional converter function to control the temperature of water supplied to the inside of the water tank, and is a control unit set in advance to a predetermined temperature. The control unit 40 is connected to an input unit, Networked, and can operate as an integrated energy management solution for visualization and optimization of energy flow and usage as well as temperature. The temperature controller 40 is preferably set to a predetermined temperature in order to convert power into heat or adjust the temperature of the heat to adjust the temperature of the water supplied to the water tank.

The electric-thermal switching unit 50 includes a thermoelectric element for directly receiving electric power from the electric storage device 20 or the solar panel 10 to convert the water into heat in order to constantly set the temperature of the water supplied to the water tank , The temperature of the heating metal (600) can be increased through the thermoelectric element. For example, the electric-to-thermal conversion unit 50 may convert direct heating or electric energy into thermal energy, and convert it into heat of a certain temperature under the control of the temperature control unit 40. Therefore, the temperature control unit 40 controls the electric storage device 20 to supply power to the electrode of the electro-thermal conversion unit 50 so that the hot water can be maintained at a predetermined temperature or higher.

The temperature control unit 40 is connected to an internal temperature sensor 41 and an external temperature sensor 42 for checking the temperature inside and outside of the water tank in which a plurality of heating control unit panels are coupled, May be adjusted by adjusting the amount of electric power received by the electric-to-thermal conversion unit (50) so as to be always maintained at a predetermined temperature or higher.

As shown in FIG. 1, the ribs 120 bent at each side are mutually coupled to form a water tank on the housing. A sealing tape 130 is attached to the ribs 120 formed on the respective sides of the thermal storage unit panel 100 and welded to the ends of the ribs 120 or combined with bolts or nuts, It is possible to store water inside and use water according to the need of the user.

100: Unit panel
200: Insulation
300: Heat storage material sheet
400: Insulation cover
600: Exothermic metal

Claims (8)

A panel plate (110) forming an outer surface of the unit panel; A heating metal 600 coupled to an inner surface of the panel plate 110 and having a lattice pattern, a through-hole polygon or a circular shape on the outer surface thereof, a thin plate, or a porous or concave-convex structure; A heat insulating material 200 coupled to an opposite surface of the panel plate of the heat generating metal 600; A heat insulating cover 400 coupled to an outer surface of the heat insulating material 200; A heat storage material sheet (300) installed between the panel plate and the exothermic metal in the unit panel and impregnated with a heat storage material made of a phase change material on the substrate; And a surface layer coupled between the heat storage material sheet (300) and the heat insulating cover (400) to absorb or emit heat,
Wherein the substrate is a selected substrate of any one of a nonwoven fabric, a woven fiber, a mesh, a metal sponge, a porous paper or a polymer sheet and the phase change material is selected from paraffin, stearic acid, beeswax, glycerin, polyester gum or polyethylene glycol A water tank comprising a unit panel (100) for forming a prefabricated water tank, which is a phase change material,
A photovoltaic panel 10 for receiving the sunlight to generate the heat-generating metal 600 to generate electric power, a photovoltaic panel 10 for storing electric power generated from the photovoltaic panel 10, In order to convert the electric power transmitted from the electric storage device 20, the solar panel 10 supplied to the heating metal 600 or the electric storage device 20 for storing solar energy to heat or to adjust the temperature of the heat A temperature control unit 40 that is set at a predetermined temperature in advance, a power supply unit that receives power directly from the solar panel 10 or the electric storage device 20 that stores solar energy, converts the electric energy into heat energy, And an electrothermal transducer (50) including a thermoelectric element for converting the heat into a predetermined temperature under the control of a controller,
The temperature control unit 40 controls the temperature of the inside and outside of the water tank so that the amount of electricity received by the electric-to-heat conversion unit 50 can be controlled so that the temperature of the water inside the water tank is maintained at a predetermined temperature or higher. An input unit that includes a temperature sensor (41) and an external temperature sensor (42), controls the temperature of water supplied into the water tank, has a bidirectional converter function, and receives a predetermined temperature value Connected to the user's terminal and connected to the network, enabling visualization and optimization of energy flow and use as well as temperature,
The heat storage material sheet (300) comprises a first heat storage material sheet (310) and a second heat storage material sheet (320) provided on both sides of the heat generation metal,
The panel plate 110 and the first heat storage material sheet 310, the second heat storage material sheet 320 and the heat insulating material 200, the heat insulating material 200 and the heat insulating cover 400, And an adhesive layer is formed on each of the joints for the heat control unit panel.
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