KR20100055140A - Heating system using solar heat including heating panel used latent heat - Google Patents

Abstract

PURPOSE: A solar heating system using a latent heat radiant panel is provided to reduce the installation space by excluding a heat storage tank and a heat exchanger. CONSTITUTION: A solar heating system comprises a collector(110), a circulating pump(130), a latent heat radiant panel(140), and a piping. The collector heats a heat carrier by absorbing the solar energy. The circulating pump is provided with electric power and circulates the heat carrier in one way. The latent heat radiant panel is filled with a heat radiant material and a thermal medium for phase change of the heat radiant material passes through the inside of the latent heat radiant panel. The piping connects the collector, the circulating pump and the latent heat radiant panel to form a circulation loop of the thermal medium.

Description

Solar heating system using latent heat radiation panel {HEATING SYSTEM USING SOLAR HEAT INCLUDING HEATING PANEL USED LATENT HEAT}

The present invention relates to a solar heating system using a latent heat radiation panel, and more particularly, to a solar heating system that simplifies the structure of a solar heating system extremely by using a latent heat radiation panel.

Conventional heating systems use fossil fuels such as oil or gas fuels to convert them into thermal energy. However, as the price of fossil fuels has recently risen and the pollution problem caused by the use has increased, the use of alternative energy has gradually increased. The situation is expanding. In recent years, a large number of solar heating systems are widely used, which require a high initial installation cost but do not require a separate maintenance cost and do not cause pollution problems.

Referring to Figure 1, a conventional solar heating system will be described schematically.

The conventional solar heating system 1 includes a heat collector 10, a heat storage tank 20, a heat exchanger 30, circulation pumps A, B, and C for each piping system, and a heating medium 40 (for example, Radiators, ondols, and the like, and piping systems for each of the collector, the heat storage tank, and the heating medium.

In cold weather conditions, the heat exchanger 30 is used as a medium to collect the circulation pipe 10 (operating fluid: antifreeze) and the heat storage tank 20. The circulation pipe (working fluid: water) and the indoor side (heating medium 40 side). Circulating piping (operating medium: water) circulates heat energy originating from solar energy, heating is performed.

Specifically, the working fluid (antifreeze) heated by solar heat obtained from the collector 10 circulates the path of the collector 10 circulation pipe while transferring the heated heat to the heat storage tank 20 through the heat exchanger 30. In addition, the working fluid (water) in the heat storage tank 20 circulation pipe heated through the heat exchanger 30 is introduced into the heat storage tank 20 and the working fluid at the bottom is sent to the heat exchanger 30. On the other hand, the heated water above the heat storage tank 20 is sent to the indoor side (heating medium 40 side) to heat the indoor air through a heating medium 40 such as an ondol or a radiator. At this time, if the temperature of the water above the heat storage tank 20 is not high enough, the auxiliary heat source 50 is operated to heat the water in the indoor circulation pipe to a predetermined temperature or more.

The heat storage tank 20 applied to the conventional solar heating system 1 serves to temporarily store heat obtained from the collector 10, and a time zone and heating medium for obtaining solar heat through the collector 10. It is an essential configuration when the time zone for supplying the working fluid heated by the obtained solar heat to the (40) side is different. In addition, the conventional solar heating system 1 requires a separate machine room for accommodating the heat storage tank 20.

On the other hand, the solar heating system 1 of the conventional configuration described above introduces a heat exchanger 30 in order to prevent freezing in the pipe, and uses an antifreeze instead of water in the circulation pipe of the heat collector 10 and the heat storage tank in the room. Only 20 uses water as a storage medium. That is, the conventional solar heating system 1 requires a plurality of circulation pumps (A, B, C) (three in FIG. 1) and a plurality of piping systems, and additional heat exchanger responsible for heat transfer between the piping systems. Since the device 30 is included, there is a problem that the system itself is complicated and the possibility of failure increases as there are many components.

The solar heating system 1 having such a conventional configuration is limited in practical use due to excessive initial investment cost and maintenance cost. In particular, it is unavoidable to apply the conventional solar heating system 1 to a house which requires heating mainly at night time, but a space which mainly heats during the day time (for example, office, school, welfare facilities) Applying the same type of system has a problem that its utility value is significantly lowered.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to simplify the solar heating system of the conventional structure and to significantly reduce the initial investment.

In addition, another object of the present invention is to be applied to a space that requires mainly heating during the day, in particular to be installed in a place where the installation space is narrow, to provide a solar heating system with improved heat collecting efficiency.

In order to achieve the above object of the present invention, a solar heating system using a latent heat radiation panel according to a preferred embodiment of the present invention includes: a collector for absorbing solar heat to heat a heat medium; A circulation pump configured to circulate the heat medium in one direction by receiving electric power; A latent heat radiation panel configured to fill a latent heat material and pass therein through the heat medium for changing the latent heat material; And a pipe connecting the collector, the circulation pump, and the latent heat radiation panel to form a path through which the heat medium circulates.

According to a preferred embodiment, the latent heat radiation panel, the heat medium passing through the pipe through the center of the body of the heat pipe passing through the body includes one or more inside, each of the latent heat material filling container through the pipe It is connected to each other, the heat insulating material may be installed in the inner side of the side opposite the side of the latent heat of the latent heat is emitted.

According to a preferred embodiment, the solar heating system using the latent heat radiation panel of the present invention may further include an auxiliary heat source for heating the heat medium by chemical energy or electrical energy, the auxiliary heat source may be filled with the latent heat material. .

In addition, according to a preferred embodiment, the latent heat radiation panel may be installed in any one or more of the structure of the side wall panel or ondol panel, when the latent heat radiation panel is installed in the structure of the side wall panel, A radiation shielding curtain may be further installed on the side surface where latent heat is released.

According to the solar heating system using the latent heat radiation panel according to the present invention, the heat storage tank and the heat exchanger, which are essential components of the conventional solar heating system, can be omitted. Accordingly, the piping is simplified, and only one circulation pump is required. There is an effect that can significantly reduce the cost.

In addition, according to the solar heating system using the latent heat radiation panel according to the present invention, it is possible to omit the heat storage tank that requires a large installation space, there is an effect that can be installed freely in a building lacking space.

In addition, according to the present invention due to the omission of the heat exchanger and the relative reduction in the pipe length, the cost of the power required for the pump can be reduced, and the heat collecting efficiency can be improved.

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

2 is a view schematically showing the overall configuration of a solar heating system using a latent heat radiation panel according to an embodiment of the present invention.

Prior to describing the preferred embodiment of the present invention with reference to FIG. 2, the present invention is not limited to this, but can be heated using solar heat. Referring to the solar heating system using a latent heat radiation panel according to the present invention.

Solar heating system 100 using the latent heat radiation panel according to the present invention, the collector 110 for absorbing solar heat, the auxiliary heat source 120 for maintaining the temperature of the heat medium at an appropriate temperature, and the circulation to circulate the heat medium in one direction A latent heat radiating panel 140 through which the pump 130 and the latent heat material are filled, and the heat medium that changes the latent heat material passes therethrough, and the heat collector 110, the auxiliary heat source 120, and the circulation pump. 130, and includes a pipe connecting the latent heat radiation panel 140. In addition, reference numeral 150 is a three-way valve.

The collector 110 absorbs solar heat and heats the heat medium circulating therein. That is, the collector 110 absorbs solar heat to heat the heat medium introduced from the inlet side, and discharges the heated heat medium to the outlet side.

The auxiliary heat source 120 is configured of, for example, an electric heater to perform a function of maintaining the temperature of the heat medium circulating in the pipe within an appropriate range specified by the user.

The circulation pump 130 receives power from the outside and circulates the heat medium in one direction sequentially in the order of a collector-> auxiliary heat source-> latent heat radiation panel-> circulating pump-> collector. Although not shown in the drawing, the circulation pump 130 may be installed in a structure in which power is supplied through a separate photovoltaic means.

The latent heat radiation panel 140 stores the thermal energy of the heat medium heated by solar heat as the latent heat of the latent heat material, and then greatly lowers the temperature rise during the phase change limit time of the latent heat material even after the supply of heat energy from the heat medium is stopped. Parts to keep without.

Referring to Figures 3 to 6, the structure of the first embodiment of the latent heat radiation panel applied to the present invention will be described.

3 is a perspective view schematically illustrating a structure in which the latent heat radiation panel 140 applied to the present invention is installed as the side wall panel 140A, FIG. 4 is a cross-sectional view taken along line AA ′ of FIG. 3, and FIG. 3 is a cross-sectional view of the latent heat radiation panel cut in a horizontal direction, and FIG. 6 is an exploded perspective view of a latent heat material filling container which is a component applied to the latent heat radiation panel of FIG. 3.

First, referring to FIGS. 3 to 5, the side wall panel 140A applied to the present invention includes a housing 141 constituting a large appearance of a body, and one or more latent heat materials regularly arranged inside the central side of the housing. It consists of a filling container 142, each of the latent heat filling container 142 is connected to each other through the heat medium circulation pipe 143. In addition, a heat insulating material 144 such as styrofoam is provided inside the rear side of the housing 141 (the rear side of the latent material filling container 142). On the other hand, between the latent material filling container 142 and the front side surface of the housing 141, the heat transfer medium 145 (for example, to allow the heat dissipated from the latent material filling container 142 to be efficiently transmitted to the outer surface of the housing (for example) For example, a thermal conductive plate) may be selectively installed. On the other hand, reference numeral 146 is a radiation shielding curtain to suppress the heat stored in the latent heat radiation panel is transmitted to the room in the form of radiation.

Next, referring to FIG. 6, the latent heat filling container 142 applied to the present invention has a groove (for example, a semi-circular groove) curved in a shape corresponding to the shape of the heat medium circulation pipe 143. The first latent heat filler assembly 142A and the second latent heat filler assembly 142B having the same shape as the first latent heat filler assembly 142B are coupled to each other with the heat medium circulation pipe 143 interposed therebetween (eg, fusion bonding). It is configured. That is, the latent heat material filling container 142 applied to the present invention has a structure in which the first and second latent heat material filling assemblies 142A and 142B surround the heat medium circulation pipe 143.

The first and second latent heat material filling assemblies 142A and 142B are filled with an appropriate amount of latent heat material, that is, a phase change material (PCM). The first and second latent heat filler assemblies 142A and 142B may be made of a metal having high thermal conductivity, but for easy bonding (for example, fusion), the first and second latent heat filler filling assemblies 142A and 142B may be easily welded, for example, with high thermal conductivity. It is preferable to comprise with materials, such as polyethylene.

As the latent heat material filled in each of the first and second latent heat material filling assemblies 142A and 142B, it is preferable to use a phase change material in the vicinity of 50 ° C. Thus, the surface temperature of the latent heat radiation panel 140A is 30 ° C. It is preferable to keep it at -35 degreeC. The latent heat material may be any one of paraffin-based and eutectic salt-based materials.

Meanwhile, in FIG. 6, the latent heat filling container 142 applied to the present invention is formed in a quadrangular shape, and the heat medium circulation pipe 143 passes through the center of the body. It is just a preferred example of), for example, as shown in Figure 7, the embodiment of configuring the latent heat material filling container 142 in a cylindrical shape is possible.

Again, referring to Figure 2, the operation of the solar heating system using a latent heat radiation panel according to a preferred embodiment of the present invention will be described.

The entire heating system 100 is not exposed to the atmosphere, and operates as a closed system.

When the temperature difference between the outlet side of the latent heat radiation panel 140 and the outlet side of the collector 110 is equal to or higher than a predetermined temperature (eg, 10 ° C.), the circulation pump 130 is operated by a temperature controller (not shown). Operation stops when it falls below a certain temperature (eg 2 ° C).

The heat medium (for example, antifreeze) heated in the collector 110 flows into the inlet of the latent heat radiation panel 140 to heat the latent heat material filled in the latent heat radiation panel 140. If the latent heat of the solid state is continuously heated to reach the phase change temperature, from this time the melting is made and heat is stored in the latent heat radiation panel 140 in the latent heat form until the phase change is completed. Even in the process of storing heat in the latent heat radiation panel 140, some heat is transferred to the room in the form of radiation and convection, thereby heating.

In winter, after the heat collection operation is finished at around 3-4 pm, the heat stored in the latent heat radiation panel 140 is gradually released into the room, and the heating is performed until 6 pm alone. Here, the heating time can be adjusted by the amount of latent heat filling of the latent heat radiating panel 140 (for example, adjusting the number of latent heat filling containers 142 accommodated in the latent heat radiating panel 140, etc.). ). On the other hand, by filling the latent heat material with a structure similar to that applied to the latent heat radiation panel 140 in the auxiliary heat source 120, by adding a heat storage function can further extend the time for such heating.

If the solar heat obtained from the collector 110 is not sufficient, the auxiliary heat source 120 may be operated by diesel, gas, electricity, or the like. At this time, when there is almost no solar heat obtained from the collector 120, the three-way valve 150 is operated to automatically circulate only the auxiliary heat source 120 and the latent heat radiation panel 140 without passing through the collector 110. .

On the other hand, during the daytime period of the intermediate period (spring and autumn) which does not require much heating, the radiation shielding curtain 146 (see Fig. 3) is put on to prevent the stored heat from being transmitted to the room in the form of radiation. Through this, the heat stored in the latent heat radiation panel 140 is adjusted to prevent the heat dissipation as much as possible and to prevent unnecessary heating. The radiation shielding curtain 146 is surface-treated to have a small emissivity, and it is preferable that the radiation blocking curtain 146 be made somewhat thicker with a material having a higher thermal insulation performance than a general blind.

8 is a view showing a structure of a second embodiment of a latent heat radiation panel 140 applied to the present invention. Here, the same reference numerals are used to designate the same components as those described with reference to FIGS. 3 to 6, and their structures and functions will be omitted.

The latent heat radiation panel 140B illustrated in FIG. 8 includes a plurality of latent heat material filling containers 142 regularly arranged therein, and a heat medium circulation pipe 143 connected through the latent heat material filling containers 142. It is provided. The heat medium heated in the collector 110 flows into the inlet of the latent heat radiation panel 140B, and circulates inside each latent heat material filling container 142, and thus, the image of the latent heat material inside the latent heat material filling container 142. As described above, the heat is stored in latent heat form until the change is completed, and the latent heat form is used as a heating energy source.

The latent heat radiation panel 140B may be installed on the floor in a similar manner to a general dry ondol. For example, a method of installing a latent heat radiation panel 140B on a floor of a building, and installing a finishing material 160 including a heat conduction plate, a floor plate, and the like may be considered.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

1 is a view schematically showing a conventional solar heating system.

Figure 2 schematically shows the overall configuration of the solar heating system using the latent heat radiation panel of the present invention.

3 is a perspective view schematically showing a first embodiment of a latent heat radiation panel applied to the solar heating system of FIG.

4 is a cross-sectional view taken along line AA ′ of FIG. 3.

5 is a cross-sectional view of the latent heat radiation panel of FIG.

FIG. 6 is an exploded perspective view of a latent heat filling container which is a component applied to the latent heat radiating panel of FIG. 3; FIG.

7 is an exploded perspective view showing another example of a latent material filling container which is a component applied to the latent heat radiation panel of FIG. 3;

8 is a perspective view schematically showing a second embodiment of a latent heat radiation panel applied to the solar heating system of FIG.

<Description of Symbols for Main Parts of Drawings>

100: solar heating system 110: collector

120: auxiliary heat source 130: circulation pump

140, 140A, 140B: latent heat radiation panel 141: housing

142: latent heat filling container 142A: first latent heat filling assembly

142B: second latent heat filler assembly 143: heat medium circulation piping

144: insulation 145: heat transfer medium

146: radiation shutoff curtain 150: three-way valve

160: finish

Claims (5)

A collector for absorbing solar heat to heat the heating medium; A circulation pump configured to circulate the heat medium in one direction by receiving electric power; A latent heat radiation panel configured to fill a latent heat material and pass therein through the heat medium for changing the latent heat material; And And a pipe connecting the collector, the circulation pump, and the latent heat radiation panel to form a path through which the heat medium circulates. The method of claim 1, The latent heat radiation panel, Comprising one or more inside the latent heat filling container of the pipe structure through which the heat medium passes through the center of the body, Each of the latent heat filling containers is connected to each other through the pipe, Solar heating system, characterized in that the heat insulating material is installed on the inside of the side opposite to the side of the latent heat of the latent heat is emitted. The method of claim 1, Further comprising an auxiliary heat source for heating the heat medium by chemical energy or electrical energy, Solar heating system, characterized in that the auxiliary heat source is filled with the latent heat. The method of claim 2, The latent heat radiation panel is a solar heating system, characterized in that installed in any one or more of the structure of the side wall panel or ondol panel. The method of claim 2, The latent heat radiation panel is installed in the structure of the side wall panel, The solar heating system, characterized in that the radiation shielding curtain is further installed on the side portion of the latent heat of the latent heat of the side wall panel.

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