KR102612399B1 - System for saving energy using solar heat storage - Google Patents

Abstract

The present invention provides solar heat storage that installs solar heat storage pipes on the outside of a building that need to reduce heating costs and releases heat (warmth) inside the building through heat exchange of heated antifreeze transported along the circulation pipe to have a heating effect. It is about an energy saving system through

Description

Energy saving system through solar heat storage {SYSTEM FOR SAVING ENERGY USING SOLAR HEAT STORAGE}

The present invention relates to an energy saving system through solar heat storage. More specifically, solar heat storage pipes are installed on the outside of a building where heating costs need to be reduced, and heat is stored inside the building through heat exchange of heated antifreeze transported along the circulation pipe. It is about an energy saving system through solar heat storage that emits (warmth) and has a heating effect.

Generally, a heating system using solar heat has a structure that heats the heat medium in the heat storage tank by solar heat and circulates it to provide heating when the temperature exceeds a certain temperature.

However, in the case of this conventional solar heating system, since it has a structure in which the heat medium must be forced to circulate by driving a pump in a heat storage tank buried underground, a pump for circulation must be provided, and if the pump is not driven, There was a problem that led to a decrease in heating efficiency.

Korean Patent No. 10-1535384

The present invention is intended to solve the above-mentioned problem, by installing a solar heat storage pipe on the outside of a building that needs to reduce heating costs, and releasing heat (warmth) inside the building through heat exchange of heated antifreeze transported along the circulation pipe to provide heating. We aim to provide an energy saving system through solar heat storage that can be effective.

The energy saving system through solar heat storage according to an embodiment of the present invention is buried in the lower part of a building, and is connected to a heat accumulation tank 110 containing antifreeze inside, and one side of the heat accumulation tank 110, An external circulation pipe 120 is provided so that the antifreeze in the heat storage tank 110 circulates through the outside of the building, is connected to the outside circulation pipe 120 on the outside of the building, and absorbs solar heat to connect the outside circulation pipe ( A solar heat storage pipe 130, which heats the antifreeze circulating through 120, is connected to one side of the heat storage tank 110, and the heated antifreeze in the heat storage tank 110 flows through the inside of the building. It may include an inner circulation pipe 140 provided for circulation and a heat exchange device 150 connected to the inner circulation pipe 140 and dissipating heat by heated antifreeze circulating through the inner circulation pipe 140. You can.

In one embodiment, the heat storage tank 110 may be inclined so that the height of the area where the inner circulation pipe 140 is connected is higher than the height of the area where the outer circulation pipe 120 is connected. .

In one embodiment, a thermal expansion valve 160 that blocks circulation of antifreeze may be provided in the solar heat storage pipe 130 and the external circulation pipe 120, respectively.

In one embodiment, the thermal expansion valve 160 is an expansion pipe 161 with a partially expanded inner diameter, and in a state filled with air, when the antifreeze temperature increases by the solar heat storage pipe 130, the expansion pipe ( 161) An air bag 162 that expands from the inside and rises upward due to buoyancy and is connected to the lower side of the air bag 162 through a wire, and is fitted to the lower side of the expansion pipe 161 to form the expansion pipe. It may include a rubber stopper 163 that blocks antifreeze circulation through 161 and rises together when the air bag 162 rises, thereby releasing the fitting and allowing antifreeze circulation to begin.

In one embodiment, the solar heat storage pipe 130 covers an insulator frame 131 installed on the outer wall of the building, a heat absorber 132 provided on the insulator frame 131, and the heat absorber 132. and an inner transparent cover body 133 that forms a circulation passage through which antifreeze circulates, and an outer transparent cover body 134 that covers the inner transparent cover body 133 and forms an air layer with the inner transparent cover body 133. ) may include.

In one embodiment, a plurality of heat dissipation fins may be formed on the heat absorber 132.

According to one aspect of the present invention, it has the advantage of enabling continuous natural circulation of antifreeze by using the convection phenomenon caused by the temperature difference of antifreeze in a heat accumulation tank formed to have a height difference between the top and bottom, without a separate pump for antifreeze circulation.

In addition, according to one aspect of the present invention, by applying a thermal expansion valve that changes whether or not it expands depending on the temperature of the antifreeze, the circulation of the antifreeze circulating outside the building after daylight hours is automatically blocked without a separate electronically controlled valve, thereby maintaining the heating and maintaining the heating. It has the advantage of maximizing heating efficiency.

Figure 1 is a diagram showing the configuration of an energy saving system 100 through solar heat storage according to an embodiment of the present invention.
Figure 2 is a diagram showing the solar heat storage pipe 130 in more detail.
Figure 3 is a diagram showing the thermal expansion valve 160 in more detail.

Below, preferred embodiments are presented to aid understanding of the present invention. However, the following examples are provided only to make the present invention easier to understand, and the content of the present invention is not limited by the examples.

Figure 1 is a diagram showing the configuration of an energy saving system 100 through solar heat storage according to an embodiment of the present invention.

Looking at Figure 1, the energy saving system 100 through solar heat storage according to an embodiment of the present invention largely includes a heat storage tank 110, an outer circulation pipe 120, a solar heat storage pipe 130, and an inner purification pipe ( 140), a heat exchange device 150, and one or more thermal expansion valves 160.

The heat accumulation tank 110 is buried in the lower part (basement) of the building, and is filled with antifreeze inside. This heat accumulation tank 110 can be made of a material that is resistant to corrosion, and the outside is coated with an insulating material, so even if high-temperature antifreeze is accommodated, heat is stored without being released to the outside, so heating efficiency can be maximized.

The heat accumulation tank 110 has an inclined shape so that there is a height difference between the area where the outer circulation pipe 120, which will be described later, is connected, and the area where the inner circulation pipe 140 is connected. This is due to the convection phenomenon from the relatively low outer circulation pipe 120 side to the relatively high inner circulation pipe 140 side as the temperature of the antifreeze contained in the heat storage tank 110 gradually rises. This is to allow antifreeze to circulate naturally. In the case of the antifreeze in the heat accumulation tank 110, as the temperature rises, the specific gravity decreases, so it floats upward, and as the temperature decreases, as the specific gravity increases, it sinks downward. Accordingly, the heat storage tank 110 is tilted to further maximize this point, allowing relatively high-temperature antifreeze to remain in the inner circulation pipe 140 for a longer period of time.

The outer circulation pipe 120 is connected to one end of the heat storage tank 110 (a relatively low height position), and has a circulation structure inside which the antifreeze in the heat storage tank 110 can circulate. The outer circulation pipe 120 may be connected to the solar heat storage pipe 130.

The solar heat storage pipe 130 is installed on the outside of the building, heats the antifreeze transferred from the heat storage tank 110, and transfers it to the external circulation pipe 120. The structure of the solar thermal storage tube 130 is as follows.

Figure 2 is a diagram showing the solar heat storage pipe 130 in more detail.

Referring to FIG. 2, the solar heat storage tube 130 includes an insulator frame 131, a heat absorber 132, an inner transparent cover body 133, and an outer transparent cover body 134.

In the case of the insulator frame 131, it is connected to the road from the lower side of the building to the upper side of the building, and it serves to prevent heat from escaping through the outer wall of the building and to prevent cold air emitted from the outer wall of the building from flowing inside. can do.

The heat absorber 132 is provided on the insulator 131, has a slightly narrower width compared to the width of the insulator 131, and can be made of a metal material with excellent heat absorption and heat conduction. Additionally, the length of the heat absorber 132 may be formed to be the same as the length of the insulator 131.

In one embodiment, a plurality of heat dissipation fins may be formed on the heat absorber 132 for a large irradiation area and heat dissipation. In addition, in one embodiment, although not shown in the drawing, a flatness adjustment means (not shown) that adjusts the flatness of the heat absorber 132 so that solar heat is more concentrated toward the center may be included.

In the case of the flatness adjustment means, the solar heat transmitted to the heat absorber 132 can be further concentrated toward the center of the heat absorber 132 by having both edges protrude relative to the center based on the width direction of the heat absorber 132. there is.

In addition, in another embodiment, the present invention may further include an angle adjustment means (not shown) that can adjust the facing direction and angle of the heat absorber 132 so that the angle between the heat absorber 132 and the sun is always constant. I can.

In the case of the angle adjustment means, even if the height of the sun changes due to the Earth's rotation within the daylight hours, the heat absorber 132 faces the sun as much as possible by automatically adjusting the direction and angle of the heat absorber 132 facing the sun for constant heat radiation efficiency. It can be adjusted to do so. At this time, the adjusted angle may automatically change to an angle appropriate for the season depending on the season.

The inner transparent cover body 133 covers the heat absorber 132 and forms a circulation passage through which antifreeze circulates inside. The antifreeze contained between the heat absorber 132 and the inner transparent cover body 133 is gradually heated by the radiant heat of the heat absorber 132 and is transferred toward the outer circulation pipe 120. The inner transparent cover body 133 may be made of an acrylic material that allows light to pass easily.

The outer transparent cover body 134 covers the inner transparent cover body 133 and is provided to secure a space for a certain air layer. The space between the outer transparent cover body 134 and the inner transparent cover body 133 forms a sealed air layer, and this air layer further increases the thermal insulation of the antifreeze in the inner transparent cover body 133. Like the inner transparent cover body 133, the outer transparent cover body 134 may be made of an acrylic material that allows light to pass easily.

In addition, in one embodiment, although not shown in the drawing, the solar heat storage pipe 130 is an antifreeze transfer pump (not shown) that causes the antifreeze passing through the inside of the inner transparent cover body 133 to flow more quickly in the direction of the outer circulation pipe 120. Poetry) may be further included. The antifreeze transfer pump transfers and circulates the antifreeze heated by the radiant heat of the heat absorber 132 within the inner transparent cover body 133 more quickly to the outer circulation pipe 120 and the heat accumulation tank 110, thereby accumulating heat. The temperature of the antifreeze in the tank 110 may be raised more quickly.

Returning to Figure 1, the inner circulation pipe 140, unlike the outer circulation pipe 120, is connected to the other end (relatively high position) of the heat accumulation tank 110, and has a heat accumulation tank 110 on the inside. ) It has a circulation structure that allows the antifreeze to circulate.

The antifreeze heated through the solar heat storage pipe 130 is transferred to the heat storage tank 110, and is transferred toward the inner circulation pipe 140 by a convection phenomenon. Heated antifreeze can be transported to the inside of the building (boiler, etc.) through the inner circulation pipe 140, and releases energy (heat) into the room through the heat exchanger 150 connected to the inner circulation pipe 140 and then cools down. And, by being transferred back to the heat storage tank 110, it is continuously circulated with the relatively high temperature antifreeze in the heat storage tank 110.

The thermal expansion valve 160 may be provided in the solar heat storage pipe 130 and the external circulation pipe 120, respectively, and this will be examined in more detail with reference to FIG. 3.

Figure 3 is a diagram showing the thermal expansion valve 160 in more detail.

First, looking at FIG. 3(a), the thermal expansion valve 160 is an expansion pipe 161 whose inner diameter is expanded compared to the pipe for transferring antifreeze to the solar heat storage pipe 130 or the pipe connected to the external circulation pipe 120, It may include an air bag 162 and a rubber stopper 163 provided inside the expansion pipe 161.

The expansion pipe 161 has a larger inner diameter in some areas compared to the upper and lower sides, and an air bag 162 and a rubber stopper 163 are accommodated inside.

The air bag 162 is connected to the rubber stopper 163 through a wire, and the inside is partially filled with air. At this time, the inside of the expansion pipe 161 is filled with antifreeze, and the rubber stopper 163 is fitted to the lower part of the expansion pipe 161 by its own weight, so antifreeze circulation does not occur in the current state. .

In the current state, because the antifreeze temperature is relatively low, the air pocket is not expanded by air condensation, and the resulting buoyancy is not generated, so the rubber stopper 163 continues to block the lower part of the expansion pipe 161. It is a state.

However, as the daylight hours gradually approach and the antifreeze is gradually heated by the solar heat storage pipe 130, the air in the air bag 162 gradually expands and buoyancy is generated, and accordingly, the air bag 162 and the rubber stopper (163) slowly comes to mind. Accordingly, the antifreeze circulation that was blocked by the rubber stopper 163 proceeds, as shown in FIG. 3(b).

At this time, as a rise prevention bar 164 is provided inside the expansion pipe 161 to limit the rising height of the rubber stopper 163, the rise of the rubber stopper 153 stops at a certain height.

This state continues to be maintained within the sunshine hours, and after the sunshine hours, as the temperature of the antifreeze in the solar heat storage pipe 130 and the external circulation pipe 120 gradually cools, it returns to the state shown in FIG. 3(a). At this time, the heat accumulation tank 110 is already filled with sufficiently heated high-temperature antifreeze, and as the antifreeze circulation is blocked by the thermal expansion valve 160, the temperature of the antifreeze in the heat accumulation tank 110 can be maintained. will be.

Meanwhile, in one embodiment, the present invention measures the contamination level of the outer transparent cover body 134 of the solar heat storage tube 130, and if it is determined that the contamination level is higher than a preset level, the administrator terminal is provided with a cleaning service for the solar heat storage tube 130. A notification signal that induces can be transmitted. Additionally, in one embodiment, the exterior of the solar heat storage pipe 130 may be automatically cleaned using automatic cleaning equipment (not shown) capable of moving along the longitudinal direction of the solar heat storage pipe 130.

In addition, in one embodiment, the present invention is based on whether foreign substances accumulate in the lower part of the heat accumulation tank 110, the heat accumulation tank 110, the outer circulation pipe 120, the solar heat storage pipe 130, and the inner circulation pipe. It is possible to determine whether there is internal corrosion of (140) and the thermal expansion valve (160). The present invention automatically checks antifreeze components at regular intervals, and when it is determined that a change in components has occurred due to internal corrosion, a notification signal can be sent to the administrator terminal to warn of this.

In addition, in one embodiment, the present invention determines whether antifreeze is blocked and circulated through the thermal expansion valve 160, and determines whether the rubber stopper 163 is stuck in the inserted state and whether the air bag 162 is torn or not expanded normally. You can check whether etc. If antifreeze does not flow because the rubber stopper 163 does not rise even though the preset antifreeze temperature has been reached, a notification signal to warn of this may be transmitted to the administrator terminal.

Although the present invention has been described above with reference to preferred embodiments, those skilled in the art can make various modifications and changes to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that it is possible.

100: Energy saving system through solar heat storage
110: Heat accumulation tank
120: External circulation pipe
130: solar heat storage tube
131: Insulation frame
132: Heat absorber
133: Inner transparent cover body
134: Outer transparent cover body
140: Internal circulation pipe
150: heat exchange device
160: thermal expansion valve
161: Expanding pipe
162: air pocket
163: Rubber stopper
164: Rise prevention bar

Claims (6)

A heat accumulation tank (110) buried in the lower part of the building and containing antifreeze therein;
An external circulation pipe 120 connected to one side of the heat storage tank 110 and provided so that the antifreeze in the heat storage tank 110 circulates through the outside of the building;
A solar heat storage pipe 130 connected to the outer circulation pipe 120 on the outside of the building and absorbing solar heat to heat the antifreeze circulating through the outer circulation pipe 120;
An inner circulation pipe (140) connected to one side of the heat accumulation tank (110) and provided so that the heated antifreeze in the heat accumulation tank (110) circulates through the inside of the building; and
It includes a heat exchange device (150) connected to the inner circulation pipe (140) and dissipating heat by heated antifreeze circulating through the inner circulation pipe (140),
The heat accumulation tank 110,
An energy saving system through solar heat storage, characterized in that it is inclined so that the height of the area where the inner circulation pipe (140) is connected is higher than the height of the area where the outer circulation pipe (120) is connected.
delete According to paragraph 1,
In the solar heat storage pipe 130 and the external circulation pipe 120,
An energy saving system through solar heat storage, characterized in that each thermal expansion valve (160) is provided to block the circulation of antifreeze.
According to paragraph 3,
The thermal expansion valve 160,
Expanded pipe 161 with a partially expanded inner diameter;
In a state filled with air, when the antifreeze temperature rises due to the solar heat storage pipe 130, an air bag 162 expands inside the expansion pipe 161 and rises upward due to buoyancy; and
It is connected to the lower side of the air bag 162 through a wire, and is fitted to the lower side of the expansion pipe 161 to block antifreeze circulation through the expansion pipe 161, and then causes the air bag 162 to rise. An energy saving system through solar heat storage, characterized in that it includes a rubber stopper (163) that rises together to release the fitting and initiate antifreeze circulation.
According to paragraph 1,
The solar heat storage tube 130 is,
Insulator frame 131 installed on the exterior wall of the building;
A heat absorber 132 provided on the insulator frame 131;
an inner transparent cover body 133 that covers the heat absorber 132 and forms a circulation passage through which antifreeze circulates; and
An outer transparent cover body 134 that covers the inner transparent cover body 133 and forms an air layer with the inner transparent cover body 133. An energy saving system through solar heat storage.
According to clause 5,
On the heat absorber 132,
An energy saving system through solar heat storage, characterized in that a plurality of heat dissipation fins are formed.