KR102205167B1 - Solar heating collector - Google Patents

Abstract

It relates to a solar heat collecting device capable of stably maintaining the flow of liquid or gas in a heating tube and capable of generating power according to the flow of liquid or gas, and is mounted in a heat collecting housing, the heat collecting housing, and heated by solar heat. A plurality of heating tubes through which the liquid or gas flows, and a flow auxiliary member respectively coupled to a pair of heating tubes at upper and lower portions of the plurality of heating tubes, and the flow auxiliary member has a U-shape, The plurality of heating tubes are coupled to each other in a staggered position in a zigzag shape at the top and bottom of the plurality of heating tubes, the inner diameter of the flow auxiliary member is provided larger than the inner diameter of the heating tube, and the inside of the flow auxiliary member has a rotatable cross shape. 1 By providing a configuration with a built-in blade, it is possible to stably maintain the flow of liquid or gas in a number of heating tubes.

Description

Solar heat collecting device {SOLAR HEATING COLLECTOR}

The present invention relates to a solar heat collecting device, and in particular, to a solar heat collecting device capable of stably maintaining a flow of a liquid or gas in a heating tube and capable of generating power according to the flow of the liquid or gas.

Due to the advancement of the industrial society and the increase of the population, a lot of energy is required, and the most widely used energy sources are fossil energy sources such as coal and oil and natural gas. However, these energy sources are limited and are gradually being depleted, and the development of alternative energy sources is urgent because it has a great influence on global warming due to pollution. In addition, the need for eco-friendly alternative energy is urgently required to prevent air pollution caused by greenhouse gases, and many studies on the use of solar heat as one of the means to obtain necessary thermal energy without generating air pollutants have been conducted. It is going on.

In other words, unlike fossil energy sources such as coal or petroleum and natural gas, solar heat is a clean energy source that does not generate pollution and is supplied almost without restriction. Therefore, it has been used as an energy source for industrial, heating, or automobiles. Commercialization is taking place along with constant research.

Currently, solar heat collectors and solar modules are used as devices that use solar energy as an alternative energy source.

Flat-panel solar collectors and systems are new and renewable energy systems that obtain hot water and heating energy by directly exchanging heat with a thermal medium using solar energy, and are widely used because of their high efficiency and low initial investment cost.

An example of such a technique is disclosed in Documents 1 to 3 below.

For example, in Patent Document 1 below, as shown in FIG. 1, a cover 12 that can be opened and closed is installed, a transparent heat collecting glass 13 is installed inside the cover 12, and the inner wall is painted with black paint. The first heating wire arranged on the inner surface of the heat collecting housing 11 and the heat collecting housing 11 arranged in a zigzag pattern with both ends discharged to the outside of the heat collecting housing 11 and the heat collecting glass 13 (16), and on the bottom of the heat collecting housing 11, a heat collecting body constructed by sequentially stacking a nonwoven fabric and a heat medium mixed with volcanic stone, white crystal powder, and graphite powder from the bottom is installed, and a heating tube ( 15) is arranged, and the heating tube 15 is made of copper to form a coating layer formed by mixing white crystal powder and graphite powder and an adhesive on the surface thereof, and the outer periphery of the heating tube 15 is second heated. Disclosed is a solar heat collecting type heating device 10 configured by spirally wrapping with a hot wire.

In addition, Patent Document 2 below is attached to the outer periphery of the back of the photovoltaic module, and forms an accommodation space for accommodating air between the photovoltaic module and the roof or outer wall of the building, and the outer frame with air inlet, solar A heat sink that is attached to the photovoltaic module by means of a thermally conductive adhesive and a thermally conductive adhesive applied to the back of the photovoltaic module and radiates heat generated from the photovoltaic module to the air accommodated in the accommodation space, and is attached to the back of the heat sink. Disclosed is an air-collecting solar power generation device including a plurality of radiating fins for facilitating the discharge of heat radiated from the heat sink, and an air collector that is accommodated in an accommodation space and collects heated air for use as hot water or heating. .

On the other hand, in Patent Document 3 below, as a solar heat collecting device equipped with a heat storage tank and a heat collecting vacuum tube, a plurality of heat collecting vacuum tubes slidably coupled between an upper frame and a lower frame, and a vacuum tube seating part coupled to each of the heat collecting vacuum tubes A vacuum tube spacing control device formed by interconnection and a connection tube interconnected with an upper end of the heat collecting vacuum tube and circulating in communication with the heat storage tank, and the vacuum tube spacing control device is a solar heat collection that expands and contracts when the heat collecting vacuum tube slides. The device is disclosed.

Republic of Korea Patent Publication No. 2011-0075064 (published on July 6, 2011) Korean Registered Patent Publication No. 10-0999955 (registered on December 3, 2010) Korean Registered Patent Publication No. 10-1097530 (registered on December 15, 2011)

The above-described patent document 1 is a technology of a solar heat collecting type heating device developed by the present inventors, and a problem in that heated water or air is not uniformly discharged because water or air does not flow smoothly near the curve of the heating tube. There was.

In addition, in the technology disclosed in Patent Documents 2 and 3, since it is used together with a photovoltaic module, there is a problem that the installation of equipment is complicated, and accordingly, the installation cost increases and the operation is complicated.

An object of the present invention has been made to solve the above-described problems, and is to provide a solar heat collecting device capable of stably maintaining the flow of liquid or gas in a plurality of heating tubes.

Another object of the present invention is to provide a solar heat collecting device capable of increasing heat transfer efficiency by maintaining a uniform temperature distribution inside a heat collecting housing.

Another object of the present invention is to provide a solar heat collecting device capable of generating power according to the flow of liquid or gas in a plurality of heating tubes.

In order to achieve the above object, the solar heat collecting device according to the present invention includes a heat collecting housing, a plurality of heating tubes mounted inside the heat collecting housing and flowing liquid or gas heated by solar heat, and upper and lower portions of the plurality of heating tubes. Including a flow auxiliary member coupled to each of the pair of heating tubes, the flow auxiliary member is made of a U-shaped, is coupled to each other in a zigzag shape at the upper and lower portions of the plurality of heating pipes, the The inner diameter of the flow auxiliary member is provided larger than the inner diameter of the heating tube, and a first blade having a rotatable cross shape is embedded inside the flow auxiliary member.

In addition, in the solar heat collecting apparatus according to the present invention, the blade plate of the first blade has a curved surface toward the inflow direction of the liquid or gas, and a plurality of through holes are provided in the blade plate.

In addition, in the solar heat collecting device according to the present invention, further comprising a second blade rotatably mounted on the upper portion of the flow auxiliary member, the second blade is characterized in that the first blade and coaxially coupled.

In addition, in the solar heat collecting apparatus according to the present invention, a power generation shaft rotating according to the rotation of the first blade, a generator coupled to the power generation shaft, and a capacitor for storing power generated by the generator are further included.

In addition, in the solar heat collecting device according to the present invention, it is characterized in that it further comprises a heat insulating and buffer member provided on a plurality of heating pipes and the flow auxiliary member.

As described above, according to the solar heat collecting device according to the present invention, the flow of liquid or gas in a plurality of heating tubes by providing a flow auxiliary member respectively coupled to a pair of heating tubes at the top and bottom of the heating tube The effect of being able to stably maintain is obtained.

Further, according to the solar heat collecting device according to the present invention, an effect of uniformly maintaining the temperature distribution inside the heat collecting housing is obtained by providing the second blade rotatably mounted on the upper portion of the flow auxiliary member.

In addition, according to the solar heat collecting device according to the present invention, a power generation shaft rotating according to the rotation of the first blade and a generator coupled to the power generation shaft are provided to generate power according to the flow of liquid or gas in a plurality of heating tubes. There is also an effect.

1 is a perspective view of a conventional solar heat collecting heating device,
2 is a perspective view of a solar heat collecting device according to a first embodiment of the present invention,
3 is an exploded perspective view of the solar heat collecting device shown in FIG. 2;
4 is an exploded perspective view of the flow auxiliary member shown in FIG. 3;
5 is a diagram illustrating the operation of the flow auxiliary member shown in FIG. 3;
6 is a modified structure diagram of the first blade shown in FIG. 4;
7 is a perspective view of a solar heat collecting device according to a second embodiment of the present invention,
8 is a combined state diagram of the flow auxiliary member and the second blade shown in FIG. 7;
9 is an exploded perspective view of the flow auxiliary member and the second blade shown in FIG. 8;
10 is a block diagram of a solar heat collecting device according to a third embodiment of the present invention.

The above and other objects and new features of the present invention will become more apparent from the description of the present specification and the accompanying drawings.

The term "liquid or gas" as used herein refers to a material that is heated and flows by solar heat in a heating tube, and refers to a material containing water, air or a material for promoting heat transfer.

In addition, the term "the upper part of the heating tube" as used herein refers to the left part in the drawing showing the state in which each heating tube is mounted on the heat collecting housing, and the "lower part of the heating tube" refers to the state attached to the heat collecting housing Means the right part. That is, the upper and lower portions of the heating pipe mean a portion in which one end of the heating pipe is coupled to one flow auxiliary member and a portion in which the other end of the heating pipe is coupled to another flow auxiliary member.

In addition, the term "zigzag shape" as used herein means that one end of the first and second heating tubes is coupled to the first flow auxiliary member, and the other ends of the second and third heating tubes are coupled to the second flow auxiliary member. And, one end of the third and fourth heating tubes is coupled to the third flow auxiliary member, and the other ends of the fourth and fifth heating tubes are coupled to the fourth flow auxiliary member.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings.

[First embodiment]

A first embodiment of the solar heat collecting device according to the present invention will be described with reference to FIGS. 2 to 4.

2 is a perspective view of a solar heat collecting device according to a first embodiment of the present invention, FIG. 3 is an exploded perspective view of the solar heat collecting device shown in FIG. 2, and FIG. 4 is an exploded perspective view of the flow auxiliary member shown in FIG. .

In the solar heat collecting device 100 according to the first embodiment of the present invention, as shown in FIG. 2, a heat collecting housing 110 and a liquid or gas mounted inside the heat collecting housing 100 and heated by solar heat are It includes a plurality of heating pipes 120 flowing, and a flow auxiliary member 130 respectively coupled to a pair of heating pipes at the upper and lower portions of the plurality of heating pipes 120.

The heat collecting housing 100 may be coated with a black paint to improve the heat collecting ability on the inner wall, and as shown in FIG. 3, the upper case 111 and a plurality of heating tubes 120 as a cover, and flow assistance It includes a lower case 112 in which the member 130 is embedded, and the upper case 111 and the lower case 112 may be provided to be openable and closed by a hinge.

In the upper case 111, as shown in Fig. 3 (a), a transparent glass plate 113 for heat collection is installed, and generates heat by electric energy supplied from the outside on the inner surface of the glass plate 113 for heat collection. The first heating wire 114 may be installed. Therefore, when snow or frost is accumulated on the heat collecting glass plate 113 and sunlight cannot be completely irradiated into the upper case 111, electric energy is supplied to the first heating wire 114 installed inside the heat collecting glass plate 113 Snow or frost accumulated on the heat collecting glass plate 113 may be removed by the heat generated by the first heating wire 16.

Inside the lower case 112, a heat collecting body made of a heat medium formed by mixing a nonwoven fabric capable of improving heat retention, a volcanic stone and white crystal powder and graphite powder, which has antibacterial and sterilizing effects and far-infrared emission effects, may be provided. A number of heating tubes 120 are mounted on the heat collecting body. The heating tube 120 may be configured such that 1/2 of the total height is embedded in the upper part of the heat collector.

Each of the plurality of heating tubes 120 is made of copper (Cu) having a high thermal conductivity as a pipe shape, and, for example, as shown in detail of the “A” part of FIG. 3(b), the outer periphery of the heating tube The second heating wire 121 may be wound in a spiral shape to generate heat from the second heating wire 121 by electric energy supplied from the outside. Therefore, under conditions in which sunlight is not irradiated to the solar heat collecting device 100, for example, at night, electric energy is supplied to the second heating wire 121 to heat the second heating wire 17 to heat the heating tube 120 All-weather heating can be made possible by doing this.

The flow auxiliary member 130 may be formed of a metal material such as copper, stainless steel, aluminum, ceramic, or plastic such as PE, PVC, FRP, and is formed in an approximately U-shape, and as shown in FIG. At the top and bottom of the heating tube 120, they are combined in a zigzag shape at an offset position from each other.

As shown in FIG. 4, the flow auxiliary member 130 is mounted on the lower case 112 and has a lower frame 131 having a space 135 for the flow of liquid or gas therein, and the lower frame ( Mounted so as to be rotatable in one direction in the upper frame 132 that is fitted to the 131 and keeps the space part 135 in a sealed state, and the space part 135 formed by the lower frame 131 and the upper frame 132 It includes a first blade 133.

The first blade 133 is formed of four blade plates in an approximately cross-shaped shape as shown in FIG. 4, and is supported by a rotatable shaft at an approximately central portion of the lower frame 131 and the upper frame 132. , Each blade plate is provided with a plurality of through holes 134. In addition, each blade plate may be formed of a metal material such as copper, stainless steel, aluminum, ceramic, or plastic such as PE, PVC, FRP, and the same material as the heating tube. In addition, the first blade 133 may be coupled to the lower frame 131 and the upper frame 132 by providing a high-speed waterproof bearing to increase rotational force in the blade plate.

In the first embodiment, a structure in which four blade plates are provided as shown in FIG. 4 is shown, but the structure is not limited thereto, and if a liquid or gas supplied from a heating tube can be smoothly flowed, two, three, or Five can be prepared.

In addition, in the solar heat collecting device 100 according to the present invention, the flow resistance may be reduced by providing a plurality of through holes 134 in the blade plate of the first blade 133, and may be contained in liquid or gas. Impurities and the like can pass.

The space part 135 formed by the lower frame 131 and the upper frame 132 is formed in an approximately circular shape as shown in FIG. 4, and the space part 135 is formed to facilitate the flow of liquid or gas. The inner diameter is provided larger than the inner diameter of the heating tube 120.

On the other hand, both sides of the space 135 are provided with supply ports 136 and discharge ports 137 through which liquid or gas is supplied and discharged through each of the heating tubes 120. Therefore, in the solar heat collecting device 100 according to the present invention, the heating tube is assembled by inserting one end of the heating tube 120 into each of the supply port 136 and the discharge port 137, so that the assembly of the heat collecting device is easy. I can run it. The connection between the supply port 136 and the discharge port 137 and the heating tube 120 is connected by fitting by heat treatment and by combining a screw type bolt and a nut type.

Next, the operation of the first blade 133 in the flow assist member 130 described above will be described with reference to FIG. 5.

5 is a diagram illustrating an operation of the flow assist member shown in FIG. 3.

As shown in FIG. 5, the first blade 133 is mounted close to the inner wall of the space 135 having a substantially circular shape, and liquid or gas through the heating tube 120 coupled to the supply port 136 When is supplied, it rotates counterclockwise by the supply pressure of the liquid or gas, and the liquid or gas flows between the rotating blade plates and is discharged through the heating tube 120 coupled to the discharge port 137.

In addition, in the above description, a structure in which the first blade 133 rotates in a counterclockwise direction has been described, but the structure is not limited thereto. In the structure in which a liquid or gas is supplied opposite the supply port and the discharge port, the first blade is clockwise. It can be applied in a rotating structure.

As described above, in the solar heat collecting device 100 according to the present invention, replacing the curved pipe portion of the heating pipe 120 mounted in the heat collecting housing 110 as shown in FIG. 1 with the flow auxiliary member 130 Accordingly, it is possible to reduce the flow resistance of the liquid or gas in the plurality of heating tubes 120 provided in the heat collecting housing 110 by facilitating the flow of liquid or gas in the plurality of heating tubes 120.

Meanwhile, although the blade plate of the first blade 133 shown in FIG. 4 has a flat plate-shaped structure, it may be provided in a curved surface toward the inflow direction of a liquid or gas.

6 shows a modified structure diagram of the first blade shown in FIG. 4.

That is, as shown in (a) of Figure 6, each of the blade plates of the first blade 133 as a whole is provided with a curved surface 138 toward the inflow direction of the liquid or gas, or in Figure 6 (b) As shown, a structure in which a plurality of concave portions 139 are provided to each of the blade plates may be applied.

By providing the blade plate as shown in FIG. 6, the flow of liquid or gas supplied to the flow auxiliary member 130 can be made more smoothly.

In addition, in the solar heat collecting device according to the present invention, a warming and buffering member may be provided on the plurality of heating tubes 120 and the flow auxiliary member 130.

That is, the glass plate 113 for heat collection is removed from the structure shown in FIG. 3, and vinyl and stainless steel for insulation, an iron plate, and a thermally conductive resin are provided on the plurality of heating tubes 120 and the flow auxiliary member 130. , It is also possible to provide a structure filled with impact relief sponge, loess or styrofoam insulation. In addition, when the thickness of the heat collecting housing 100 is heavy, a wire mesh is applied to prevent cracks, and a film is formed by spraying with ceramic paints of various colors on both sides to form a film instead of the heat collecting glass plate 113 for waterproof, flame retardant, and heat insulation. It can be applied in various ways such as geothermal, wall, roof, and roof.

[Second Embodiment]

A second embodiment of the solar heat collecting device according to the present invention will be described with reference to FIGS. 7 to 9. In addition, in the description of the second embodiment, only the main components are described, and other components have the same components as those of the first embodiment, so a repetitive description thereof will be omitted.

7 is a perspective view of a solar heat collecting device according to a second embodiment of the present invention, FIG. 8 is a combined state diagram of a flow auxiliary member shown in FIG. 7 and a second blade, and FIG. 9 is a flow auxiliary member shown in FIG. And an exploded perspective view of the second blade.

As shown in Figs. 7 and 8, the solar heat collecting device 100 according to the second embodiment of the present invention includes a heat collecting housing 110, a plurality of heating tubes 120, a flow auxiliary member 130, and a flow auxiliary. It includes a second blade 140 rotatably mounted on the upper portion of the member 130.

The second blade 140 is provided in the same structure as the first blade 133 provided in the flow auxiliary member 130 and is provided to rotate in conjunction with the rotation of the first blade 133. The second blade 140 is coaxially coupled with the first blade 133 through a bearing, a nut, or the like, as shown in FIG. 9.

On the other hand, the second blade 140 is not provided with a through hole similar to that of the first blade 133, and a structure as shown in FIG. 6 may be applied.

By installing the second blade 140 in the heat collecting housing 110 as in the second embodiment, the temperature distribution inside the heat collecting housing 110 heated by each heating tube 120 can be uniformly maintained. And, this can increase the heat transfer efficiency between solar heat and liquid or air.

In addition, in the second embodiment, as shown in FIG. 7, a structure in which the second blade 140 is mounted on the upper frame 132 of each flow auxiliary member 130 is shown, but the structure is not limited thereto. Depending on the size of the housing 110 and the state of condensing solar heat, it may be provided only in a portion of each flow auxiliary member 130. That is, for example, the second blade 140 may be provided only at four corners of the heat collecting housing 110. Alternatively, it may be alternately provided in every other of the plurality of flow auxiliary members 130.

In addition, each of the second blades 140 may be connected to each other by applying a gear and a chain or belt.

[Third embodiment]

A third embodiment of the solar heat collecting device according to the present invention will be described with reference to FIG. 10. In addition, in the description of the third embodiment, only the main configurations are described, and other configurations have the same configurations as those of the first embodiment, so a repetitive description thereof will be omitted.

10 is a block diagram of a solar heat collecting device according to a third embodiment of the present invention.

The solar heat collecting device according to the third embodiment of the present invention is provided in a structure in which a plurality of flow auxiliary members 130 are stacked, as shown in FIG. 10, and a first blade in the plurality of flow auxiliary members 130 A power generation shaft 151 that rotates according to the rotation of the power generation shaft 151, a generator 170 coupled to the power generation shaft 151, and a capacitor 180 for storing power generated by the generator 170,

The first blades 133 provided in each of the flow auxiliary members 130 are coaxially connected, and the pulley 150 is coupled to the coaxial structure. As shown in FIG. 10, the pulley 150 is provided on the stacked upper flow auxiliary member, the lower flow auxiliary member, and the power generation shaft 151, respectively, and these pulleys 150 are attached to a rotatable belt or chain 160. By being connected to each other, the rotational force of the first blade 133 is transmitted to the power generation shaft 151.

Accordingly, the generator 170 can generate power according to the rotation of the power generation shaft 151, and the generated power is stored in the storage battery 180.

In addition, in the third embodiment, when the through hole 134 provided in the blade plate of the first blade 133 is blocked by foreign substances, etc., thereby obstructing the flow of fluid or air, the pulley 150 is removed by the power charged in the storage battery. When the first blade 133 is forcibly rotated, the first blade 133 is forcibly rotated, thereby moving foreign substances and the like to maintain normal operation.

Although the invention made by the present inventor has been described in detail according to the above embodiment, the invention is not limited to the above embodiment, and can be changed in various ways without departing from the gist of the invention.

By using the solar heat collecting device according to the present invention, it is possible to stably maintain the flow of liquid or gas in a plurality of heating tubes.

100: solar collector
110: collection housing
120: heating tube
130: flow auxiliary member

Claims (5)

Collection housing,
A plurality of heating tubes mounted inside the heat collecting housing and flowing liquid or gas heated by solar heat,
Including a flow auxiliary member respectively coupled to a pair of heating tubes at the top and bottom of the plurality of heating tubes,
The flow auxiliary member is formed in a U-shape, is coupled in a zigzag shape at an upper and lower portion of the plurality of heating tubes, and is mounted in a lower case, and a space portion for liquid or gas flow is formed therein A frame, an upper frame fitted to the lower frame to keep the space part sealed, and a cross-shaped first blade rotatably mounted in one direction in the space part formed by the lower frame and the upper frame,
The inner diameter of the flow auxiliary member is provided larger than the inner diameter of the heating tube to facilitate the flow of liquid or gas,
Solar heat collecting device, characterized in that the blade plate of the first blade is provided with a plurality of through holes. In claim 1,
The blade plate is a solar heat collecting device, characterized in that the curved surface toward the inflow direction of the liquid or gas. In paragraph 2,
Further comprising a second blade rotatably mounted on the upper portion of the flow auxiliary member,
The second blade is a solar heat collecting device, characterized in that coupled to the first blade and coaxially. In paragraph 3,
A power generation shaft that rotates according to the rotation of the first blade,
A generator coupled to the power generation shaft,
Solar heat collecting device, characterized in that it further comprises a capacitor for storing the power generated by the generator. In paragraph 2,
Solar heat collecting device, characterized in that it further comprises a heat insulation and buffer member provided on the plurality of heating pipes and the flow auxiliary member.

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