KR102381482B1 - Solar energy storage system having dual heat-collecting tubes using multiple heating medium oil - Google Patents

Abstract

A solar heat storage device having a double heat collecting tube body of a plurality of heat medium oils according to the present invention collects solar heat while tracking according to the circadian altitude of the sun, and is provided to surround the circulating heat medium oil and the circulating heat medium oil. Heat collecting including a double tube structure module; a heat exchanger disposed adjacent to the heat collecting module; and a supply pipe for interconnecting the heat collecting module and the heat exchanger, and supplying the circulating heat medium oil collected by the heat collecting module to the heat exchanger, and an exhaust pipe for discharging the circulating heat medium oil after heat exchange in the heat exchanger is completed to the heat collecting module It may include a piping line comprising a.
The solar heat storage device having a double heat collecting tube body of a plurality of heat medium oils according to the present invention can increase the contact area through the corrugated pipe part, improve the heat absorption through the coating layer on the outer casing compared to the prior art, and a heat exchange heat medium with relatively high specific heat and viscosity By enclosing the oil price circulating heat medium oil and packing it with the packing part, the heat storage time of the circulating heat medium oil is increased, the waste heat recovery rate is improved, and at the same time, the sealing power of the heat exchange heat medium oil is secured, the heat collection yield is improved, and the equipment operation and management cost can be reduced.

Description

A solar storage device having a double heat collecting tube body of a plurality of heat medium oils {SOLAR ENERGY STORAGE SYSTEM HAVING DUAL HEAT-COLLECTING TUBES USING MULTIPLE HEATING MEDIUM OIL}

The present invention relates to a solar thermal storage device having a double heat collecting tube body of a plurality of heat medium oils, and more particularly, having a double heat collecting tube body of a plurality of heat medium oils that can be safer by improving heat collecting efficiency and sealing property compared to the prior art It relates to solar thermal storage.

In recent years, solar energy and solar heat have been spotlighted as clean and eco-friendly energy sources along with wind power and hydroelectric power, and are being recognized as almost the only alternative means of fossil raw materials such as petroleum.

In this regard, various equipment or facilities that utilize solar energy are emerging. Solar panels and solar cell modules that collect light energy and directly convert it into electrical energy, or solar heat storage that collects thermal energy and heats it as a heat source for hot water and heating. It is largely divided into (heat collecting) devices and is being developed.

Among them, the solar heat storage device has a heat collecting plate of a certain standard and a circulation pipe through which a working fluid flows therein is disposed adjacent to the heat collecting plate. can be used through In such a solar thermal storage device, the main issue is the yield of heat collection, and research and development on heat collecting structures in the form of single or double pipes are active.

However, in the case of the conventional single pipe structure, there is a problem in that it is not possible to secure a uniform and constant heat collection yield because the amount of heat absorption sharply decreases or changes rapidly depending on external environmental changes such as thunderstorms in the daytime or a decrease in the absolute irradiation time of sunlight in winter. .

In addition, even if the heat collecting part of the double pipe structure of the inner pipe and the outer pipe surrounding it is provided in the same way as the working fluid circulating in the inner pipe, heat exchange is not performed smoothly, and there is a possibility of leakage, leakage, or explosion at the joint of the inner and outer pipe. Accordingly, there is a problem in that the device operation and management cost is increased.

The present invention has been proposed to solve the above problems. The contact area can be increased through the corrugated pipe part, the heat absorption can be improved compared to the prior art through the coating layer on the outer casing, and the heat exchange heat medium oil with relatively high specific heat and viscosity is the circulating heat medium oil. Double collection of a plurality of heat medium oils that can increase the heat storage time of the circulating heat medium oil and improve the waste heat recovery rate by enclosing and packing with the packing part, and at the same time secure the sealing power of the heat exchange heat medium oil to improve the heat collection yield and reduce the operation and management cost of the device A solar thermal storage device having a tube body is provided.

A solar heat storage device having a double heat collecting tube body of a plurality of heat medium oils according to the present invention for achieving the above object collects solar heat while tracking according to one lap of the sun, and wraps the circulating heat medium oil and the circulating heat medium oil a heat collecting module including a double tube structure; a heat exchanger disposed adjacent to the heat collecting module; and a supply pipe for interconnecting the heat collecting module and the heat exchanger, and supplying the circulating heat medium oil collected by the heat collecting module to the heat exchanger, and an exhaust pipe for discharging the circulating heat medium oil after heat exchange in the heat exchanger is completed to the heat collecting module It may include a piping line comprising a.

The heat collecting module includes: a heat collecting panel unit coupled to a horizontal frame rotatably connected to a support and provided with a preset curvature; an inner chassis portion connected to the horizontal frame and provided to extend inwardly of the curvature; an outer oblique part connected to the horizontal frame and provided to extend in a length opposite to the direction in which the heat collecting panel part is disposed; and a double heat collecting tube body disposed on an end of the inner chassis part and disposed at a focal point where the multiple paths of the solar heat are gathered in one place.

The double heat collecting tube body, an outer casing disposed at a point where the multiple paths of the solar heat gather in one place; an inner tube body arranged to be spaced apart by a preset gap in the outer casing and in which the circulating heat medium oil temporarily resides and flows; and a packing portion provided at both ends of the inner tube body and the outer casing and sealing the heat exchange heat medium oil remaining in the gap.

The heat collecting module may include: a tracking sensor unit provided at an end of the inner chassis unit to track the circadian altitude of the sun; a rotation motor provided at both ends of the horizontal frame; And it may further include a control unit for controlling driving the rotation motor from the sensing signal of the tracking sensor unit.

The heat collecting panel unit may include: a round frame provided on the horizontal frame and provided to be rounded with the curvature; and first and second heat collecting plates disposed on both sides with respect to the center of the horizontal frame and coupled to the round frame.

The first and second heat collecting plates may be provided separately from each other.

The heat exchanger includes: an exchange main body; a spiral coil body spirally disposed inside the exchange body; and a circulation motor for circulating and driving the circulating heat medium oil.

A coating layer is provided on the outer surface of the outer casing, and the coating layer may be deposited and processed with porous silicon carbide (SiC, Silicon Carbide) or other inorganic materials that ensure high emissivity, chemical resistance and heat resistance.

The packing unit may include: a bulkhead spacer coupled to the inner tube body; a side wall cover screwed to the bulkhead spacer; a scissor-type clamper for mutually clamping the outer casing and the side wall cover; and at least one sealing part interposed between the partition wall spacer and the side wall cover.

A clamping protrusion is provided on the outer casing, and the sealing portion includes: a first sealing member interposed between the side wall cover and the bulkhead spacer; and a second sealing member interposed between the clamping protrusions in the end region of the side wall cover.

The heat exchange heat medium oil may have a relatively high specific heat and a high viscosity compared to the circulating heat medium oil.

The solar heat storage device having a double heat collecting tube body of a plurality of heat medium oils according to the present invention can increase the contact area through the corrugated pipe part, improve the heat absorption through the coating layer on the outer casing compared to the prior art, and a heat exchange heat medium with relatively high specific heat and viscosity By enclosing the oil price circulating heat medium oil and packing it with the packing part, the heat storage time of the circulating heat medium oil is increased, the waste heat recovery rate is improved, and at the same time, the sealing power of the heat exchange heat medium oil is secured, the heat collection yield is improved, and the equipment operation and management cost can be reduced.

1 and 2 are perspective views of a solar thermal storage device including a solar thermal storage device having a double heat collecting tube body of a plurality of heat medium oils according to an embodiment of the present invention.
3 is a front view of a solar storage device having a double heat collecting tube body of a plurality of heat medium oils according to an embodiment of the present invention.
4 is a side view of a heat collecting module in a solar thermal storage device according to an embodiment of the present invention.
5 is a perspective view of a double heat collecting tube body in a solar thermal storage device having a plurality of double heat collecting tube bodies of heat medium oil according to an embodiment of the present invention.
6 is a partial cross-sectional view of FIG. 5 .
7 is a partial cutaway view of a heat exchanger in a solar thermal storage device having a double heat collecting tube body of a plurality of heat medium oils according to an embodiment of the present invention.
8 is a diagram schematically illustrating a circulation process of a circulating heat medium oil in a solar thermal storage device having a double heat collecting tube body of a plurality of heat medium oils according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, an embodiment of a solar thermal storage device having a double heat collecting tube body of a plurality of heat medium oils according to the present invention will be described in detail.

1 and 2 are perspective views of a solar heat storage device including a solar heat storage device having a double heat collecting tube body of a plurality of heat medium oils according to an embodiment of the present invention, and FIG. 3 is a plurality of heat medium oils according to an embodiment of the present invention. A front view of a solar heat storage device having a double heat collecting tube body, FIG. 4 is a side view of a heat collecting module in a solar heat storage device according to an embodiment of the present invention, and FIG. 5 is a double heat collecting tube of a plurality of heat medium oils according to an embodiment of the present invention A perspective view of a double heat collecting tube body in a solar heat storage device having a sieve, FIG. 6 is a partial cross-sectional view of FIG. 5, and FIG. 7 is a heat exchange in a solar heat storage device having a double heat collecting tube body of a plurality of heat medium oils according to an embodiment of the present invention This is a partial cutaway view of the qi.

A solar heat storage device having a double heat collecting tube body of a plurality of heat medium oils according to an embodiment of the present invention collects solar heat while tracking according to a circadian altitude of the sun, as shown in FIGS. 1 to 7, circulating heat medium oil and the above a heat collecting module 400 including a double pipe structure provided to surround the circulating heat medium oil; a heat exchanger 500 disposed adjacent to the heat collecting module 400; and a supply pipe 610 interconnecting the heat collecting module 400 and the heat exchanger 500 for supplying the circulating heat medium oil collected by the heat collecting module 400 to the heat exchanger 500, and the heat exchange It may include a piping line 600 including a discharge pipe 620 for discharging the circulating heat medium oil on which the heat exchange is completed in the unit 500 to the heat collecting module 400 .

The heat collecting module 400 is a device that substantially collects solar heat while tracking according to the sun's diurnal altitude. To this end, the heat collecting module 400 is mainly coupled to a horizontal frame 410 rotatably connected to a support 401 with reference to FIGS. 1 to 4 , and a heat collecting panel part 420 provided with a preset curvature. ; an inner chassis part 430 connected to the horizontal frame 410 and provided to extend inwardly of the curvature; an outer chassis part 440 connected to the horizontal frame 410 and provided to extend in a length opposite to the direction in which the heat collecting panel part 420 is disposed; and a double heat collecting tube body 100 disposed on an end of the inner chassis 430 and disposed at a focal point where the multiple paths of the solar heat are gathered in one place.

In addition, the heat collecting module 400, a tracking sensor unit 460 provided at the end of the inner chassis unit 430 for tracking the circadian altitude of the sun; a rotation motor 450 provided at both ends of the horizontal frame 410; and a control unit 470 configured to drive and control the rotation motor 450 from the sensing signal of the tracking sensor unit 460 .

A horizontal frame 410 may be rotatably provided on the support 401 .

A heat collecting panel unit 420 may be provided on the horizontal frame 410 . The heat collecting panel unit 420 is provided on the horizontal frame 410, the round frame 423 is provided to be rounded with the curvature; and first and second heat collecting plates 421 and 422 disposed on both sides with respect to the center of the horizontal frame 410 and coupled to the round frame 423 .

The round frame 423 and the first and second heat collecting plates 421 and 422 may be manufactured with a preset curvature. That is, the sunlight guided by the first and second heat collecting plates 421 and 422 may be provided in a structure that can be focused on the focus of the curvature due to the preset curvature, that is, the double heat collecting tube body 100 . Here, the preset curvature is a physical property (eg, reflectance, heat collection capacity, etc.) of the first and second heat collecting plates 421 and 422 itself, or specifications of the first and second heat collecting plates 421 and 422 (eg, size and thickness). etc.) may be taken into account.

Surface treatment may be performed on the plate surfaces of the first and second heat collecting plates 421 and 422 to maximize the reflectance of solar heat and light energy, and the surface treatment level is at a level at which the absorption of sunlight is minimized (for example, a mirror level of surface roughness, etc.). The first and second heat collecting plates 421 and 422 may be provided separately from each other.

The heat collecting panel unit 420 of this configuration may be relatively rotated on the support 401 while being tracked according to the circadian altitude of the sun.

An inner chassis portion 430 may be provided in the central region of the horizontal frame 410 . The inner chassis part 430 may be provided to extend inwardly of the curvature (toward the center of curvature of the first and second heat collecting plates 421 and 422 ). In addition, the double heat collecting tube body 100 may be disposed on the inner chassis part 430 , which will be described later.

The tracking sensor unit 460 may be provided at an end of the inner chassis unit 430, mainly as shown in FIGS. 3 and 4 . The tracking sensor unit 460 may generate a sensing signal by tracking the circadian altitude of the sun. In addition, a rain drop sensor unit 480 and a driving light 490 may be provided.

The control unit 470 may include a tracking sensor control unit 471 and a driving control unit 472 . A rotation motor 450 is connected to the horizontal frame 410 , and the rotation motor 450 may rotate the heat collecting panel unit 420 through the driving control unit 472 .

The outer chassis part 440 may be provided to be connected to the horizontal frame 410 and to extend in a length opposite to a direction in which the heat collecting plate is disposed. The outer chassis portion 440 has a substantially triangular plate surface, and a mass 441 may be provided at the vertex of the triangle, that is, at the lower end of the outer chassis portion 440 . This mass 441 reduces the rotational mass when the heat collecting panel unit 420 relative to the support 401 rotates, and the rotation motor 450 uses less power to the first and second heat collecting plates 421 and 422 . to be able to rotate

Through the heat collecting module 400 having such a configuration, the heat collecting panel unit 420 is automatically rotated to correspond to the one-week altitude of the sun, and the first and second heat collecting plates 421 and 422 are arranged at an optimal angle to generate solar heat. to be able to collect

Meanwhile, the double heat collecting tube body 100 may be provided on the upper portion of the heat collecting panel unit 420 . The double heat collecting tube body 100 may be disposed on the end of the inner chassis part 430 at a focal point where the multiple paths of the solar heat are gathered in one place.

The double heat collecting tube body 100 is mainly with reference to FIGS. 5 and 6 , an outer casing 110 disposed at a point where multiple paths of solar heat are gathered in one place; an inner tube body 200 arranged to be spaced apart by a preset gap in the outer casing 110, and in which circulating heat medium oil temporarily resides and flows; and a packing part 300 provided at both ends of the inner tube body 200 and the outer casing 110 and sealing the heat exchange heat medium oil remaining in the gap.

The outer casing 110 may be made of a pipe material having a circular cross-sectional shape. A coating layer (not shown) is provided on the outer surface of the outer casing 110, and the coating layer may be deposited with porous silicon carbide (SiC, Silicon Carbide) or other inorganic material that ensures high emissivity, chemical resistance and heat resistance.

This coating layer allows the solar heat collected through the first and second heat collecting plates 421 and 422 to be condensed with high efficiency to the outer casing 110 . Due to this coating layer, the outer casing 110 can improve the heat absorption efficiency compared to the prior art, thereby improving the overall heat storage efficiency, so that the heat collection efficiency of the device operation level can be generated.

A compression valve 130 is provided on the outer surface of the outer casing 110 , and it is possible to adjust the pressure change and the storage amount change of the heat exchange heat medium oil stored and stored in the outer casing 110 .

A clamping protrusion 120 is provided at the end of the outer casing 110 , and a scissor-type clamper 330 may be coupled to the clamping protrusion 120 , which will be described in detail in the description of the packing unit 300 . do.

The inner tube body 200 may be inserted into the outer casing 110 . The inner tube body 200 is mainly as shown in FIG. 6 , the corrugated tube portion 220 provided over the relatively entire area of the inner tube body 200, and the connection portion 230 provided at both ends of the inner tube body 200 . may include

The corrugated pipe portion 220 may be provided with a corrugated surface corrugated along the longitudinal direction on the outer surface, thereby maximizing the outer surface area of the inner tube body 200 . Through this, it is possible to increase the contact area between the circulating heat medium oil and the heat exchange heat medium oil to improve heat absorption and heat absorption efficiency compared to the prior art.

At both ends of the corrugated pipe part 220 , the connecting part 230 , that is, a straight pipe in the horizontal direction may be connected. The side wall cover 320 of the packing part 300 is coupled to the connection part 230 to ensure the sealing force of the packing part 300 .

A gripping block (not shown) for maintaining the gap is interposed between the inner tube body 200 and the outer casing 110 , and a plurality of gripping blocks may be provided. A flow auxiliary hole (not shown) may be formed in the holding block to assist the flow of the circulating heat medium oil. Even if the heat exchange heat medium oil is partially heated in the longitudinal direction of the outer casing 110 and a local temperature difference occurs, the heat exchange heat medium oil can partially flow through the flow auxiliary hole, so that a uniform temperature distribution can be achieved.

On the other hand, in the case of the conventional double pipe structure of the inner pipe and the outer pipe surrounding it, the working fluid leaked at the joint between the outer pipe and the inner pipe, thereby lowering the overall heat collection yield and making it difficult to maintain and maintain the device.

A packing part 300 may be provided in the double heat collecting tube body 100 . The packing part 300 is mainly referring to FIGS. 3 to 5 , a bulkhead spacer 310 coupled to the inner tube body 200 ; a side wall cover 320 screwed to the partition spacer 310; A scissor-type clamper 330 for mutually clamping the outer casing 110 and the side wall cover 320, and a sealing part 340 interposed between the bulkhead spacer 310 and the side wall cover 320. can

At both ends of the inner tube body 200, partition spacers 310 may be provided. The bulkhead spacer 310 may be disposed on a boundary line between the corrugated pipe part 220 and the connection part 230 .

The bulkhead spacer 310 is a part that most of the plate surface is in direct contact with the heat exchange heat medium oil to withstand the pressure of the heat exchange heat medium oil. .

A side wall cover 320 may be coupled to the partition spacer 310 . In this embodiment, the side wall cover 320 has been shown and described to be screwed to the bulkhead spacer 310, but in order to maximize the sealing force, the screw coupling is omitted and may be coupled with a scissor-type clamper 330.

The circulating heat medium oil may flow in the inner tube body 200 . The specific heat of the circulating heat medium oil in this embodiment may be provided to be lower than about 0.474 Kcal/kg·℃, and the viscosity of the circulating heat medium oil may be provided to be lower than 2.31 cSt.

In addition, a heat exchange heat medium oil may be provided in the gap and space between the outer surface of the inner tube body 200 and the outer casing 110 . The heat exchange heat medium oil may have a relatively high specific heat and a high viscosity compared to the circulating heat medium oil. The specific heat of the heat exchange heat medium oil in this embodiment may be provided to be higher than about 0.561 Kcal/kg, ℃, and the viscosity of the heat exchange heat medium oil may be provided to be higher than 19.2 cSt.

In this way, by disposing different physical properties of the heat exchange heat medium oil provided in the inner tube body 200 and the outer casing 110 as described above, it is possible to increase the heat storage time of the circulating heat medium oil and improve the waste heat recovery rate.

That is, even if external environmental changes occur such as thunderstorms in the daytime or a decrease in the absolute irradiation time of sunlight in winter, heat exchange heat medium oil with relatively high specific heat and high viscosity wraps and protects the circulating heat medium oil. Absorption efficiency does not decrease or change rapidly, and heat absorption is gradually reduced, and uniform heat absorption can be ensured.

In addition, due to the physical properties of the heat exchange heat medium oil, there is an advantage in that the heat storage time of the circulating heat medium oil can be increased and the waste heat recovery rate can be improved.

Meanwhile, a sealing part 340 may be provided between the bulkhead spacer 310 , the outer casing 110 and the side wall cover 320 . That is, the first sealing member 341 may be interposed between the side wall cover 320 in contact with the plate surface of the bulkhead spacer 310 . The first sealing member 341 is provided relatively larger than the plate surface of the partition spacer 310 and serves to seal most of the plate surface of the partition spacer 310 .

A second sealing member 342 may be disposed in an edge region of the side wall cover 320 . That is, the second sealing member 342 is interposed between the edge of the side wall cover 320 and the clamping protrusion 120 to interact with the first sealing member 341 to prevent leakage or leakage of heat exchange heat medium oil. can Through this sealing part 340, it is possible to prevent leakage or leakage of the heat exchange heat medium oil even when the temperature of the heat exchange heat medium oil changes.

The scissor-type clamper 330 mutually clamps the clamping protrusion 120 and the side wall cover 320 of the outer casing 110 to achieve complete packing of the packing part 300 . Through the scissor-type clamper 330, it is possible to pack with a uniform force of the packing part 300 even when the pressure changes instantaneously according to the local temperature change of the heat exchange heat medium oil, so that the sealing force is secured, the heat collection yield is improved, and the device operation and Management costs can be reduced.

Through the double heat collecting tube body 100 of this configuration, the contact area can be increased through the corrugated pipe part 220 and the heat absorption efficiency can be improved compared to the prior art through the coating layer on the outer casing 110, and the specific heat and viscosity are relatively high The heat exchange heat medium oil wraps around the circulating heat medium oil and is packed with the packing unit 300 to increase the heat storage time of the circulating heat medium oil and improve the waste heat recovery rate, and at the same time secure the sealing force of the heat exchange heat medium oil to improve the overall heat storage efficiency. A level of heat collection efficiency can be generated.

A piping line 600 may be connected to both ends of the double heat collecting tube body 100 . A pipe line 600 interconnects the heat collecting module 400 and the heat exchanger 500 and supplies the circulating heat medium oil collected in the heat collecting module 400 to the heat exchanger 500 , a supply pipe 610 . ) and a discharge pipe 620 for discharging the circulating heat medium oil on which heat exchange has been completed in the heat exchanger 500 to the heat collecting module 400 .

This pipe line 600 may be connected to the heat exchanger 500 . Referring to FIG. 7 mainly, the heat exchanger 500 includes an exchange main body 510; a spiral coil body 520 spirally disposed inside the exchange main body 510; and a circulation motor 530 for circulating and driving the circulating heat medium oil.

As the circulating heat medium oil is driven by a circulation motor 530 connected to the supply pipe 610 side, one closed loop composed of the double heat collecting tube body 100 , the pipe line 600 and the spiral coil body 520 . , may flow along the piping line 600 constituting one cycle.

Water may be supplied and accommodated in the exchange main body 510 , and heat exchange with water may be performed while the circulating heat medium oil of the spiral coil body 520 is heated. A pressure valve 540 may be provided in the heat exchanger 500 to control the pressure in the exchange main body 510 .

Through such a configuration, efficient heat collection using the double heat collecting tube body 100 may be possible. That is, the contact area can be increased through the corrugated pipe part 220 and the heat absorption amount can be improved compared to the prior art through the coating layer on the outer casing 110. ), it increases the heat storage time of the circulating heat medium oil and improves the waste heat recovery rate, and at the same time secures the sealing power of the heat exchange heat medium oil, thereby improving the heat collection yield and reducing the operation and management costs of the device.

In addition, the optimal position control of the heat collecting panel unit 420 may be possible through the heat collecting module 400 , and the amount of heat collected through the double heat collecting tube body 100 may be efficiently exchanged with the heat exchanger 500 . .

8 is a diagram schematically illustrating a circulation process of a circulating heat medium oil in a solar thermal storage device having a double heat collecting tube body of a plurality of heat medium oils according to an embodiment of the present invention.

Hereinafter, the operation of the solar storage device having the dual heat collecting tube body 100 of a plurality of heat medium oils according to this embodiment will be described in detail with reference to FIGS. 1 to 7 , mainly 8 .

First, when solar heat is irradiated, the tracking sensor unit 460 senses the position, angle, and diurnal altitude of the sun and sends it to the control unit 470 . Accordingly, when the control unit 470 drives and controls the rotation motor 450 to adjust the angle of the heat collecting panel unit 420 , the horizontal frame 410 is changed in angle, and the round frame 423 and the first and second heat collecting plates 421 connected thereto are changed. , 422) is adjusted to the optimal position by changing the angle.

Next, solar heat is irradiated, reflected by the first and second heat collecting plates 421 and 422 , and concentrated to the double heat collecting tube structure 100 , which is a focal position of the first and second heat collecting plates 421 and 422 . At this time, the solar heat is concentrated to the outer casing 110, in this case, the coating layer can collect the solar heat more efficiently.

Next, the heat exchange heat medium oil may be heated. Since the heat exchange heat medium oil has relatively higher specific heat and viscosity than the circulating heat medium oil, the temperature may rise relatively slowly than the circulating heat medium oil.

At this time, the pressure increase due to the excessive temperature rise in the outer casing 110 completely packs the packing part 300 to prevent leakage or leakage of the heat exchange heat medium oil. That is, while the scissor-type clamper 330 firmly clamps the side wall cover 320 , leakage of the heat exchange heat medium oil through the first and second sealing part 340 materials can be prevented. In addition, the pressure increase due to excessive temperature rise may be adjustable by opening and closing the pressure valve.

Next, heat exchange occurs with the circulating heat medium oil in the inner tube body 200 through the corrugated surface of the corrugated pipe part 220 . The circulating heat medium oil has a relatively low specific heat and low viscosity than the heat exchange heat medium oil, so it can be circulated while being heated rapidly.

Next, the circulating heat medium oil is introduced into the heat exchanger 500 through the supply pipe 610 , and the cycle rotation of the circulating heat medium oil is made by the driving force of the circulation motor 530 .

The collected circulating heat medium oil reaching the heat exchanger 500 through the supply pipe 610 undergoes heat exchange such as boiling water while passing through the spiral coil body 520 . The heat-exchanged water may be discharged to the outlet pipe. On the other hand, one cycle can be configured as the circulating heat medium oil from which all of the heat is lost is re-injected into the double heat collecting tube body 100 through the discharge pipe 620 .

Through this operation process, the contact area can be increased through the corrugated pipe part 220, the heat absorption efficiency can be improved compared to the conventional one through the coating layer on the outer casing 110, and the heat exchange heat medium oil with relatively high specific heat and viscosity is used for circulating heat medium oil. By wrapping and packing with the packing unit 300 , it is possible to increase the heat storage time of the circulating heat medium oil and improve the waste heat recovery rate, and at the same time secure the sealing power of the heat exchange heat medium oil to improve the overall heat collection efficiency.

In addition, the optimal position control of the heat collecting panel unit 420 may be possible through the heat collecting module 400 , and the amount of heat collected through the double heat collecting tube body 100 may be efficiently exchanged with the heat exchanger 500 . .

As mentioned above, although the present invention has been described in detail using preferred embodiments, the scope of the present invention is not limited to specific embodiments and should be construed according to the appended claims. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

100: double heat collecting tube body
110: outer casing 120: protrusion for clamping
130: pressure valve 200: inner tube body
220: corrugated pipe part 230: connection part
300: packing part 310: bulkhead spacer
320: side wall cover 330: scissor type clamper
340: sealing part 341: first sealing member
342: second sealing member
400: heat collecting module 410: horizontal frame
420: heat collecting panel part 421, 422: first and second heat collecting plates
423: round frame 430: inner chassis part
440: outer chassis 441: mass body
450: rotation motor 460: tracking sensor unit
470: control unit 471: tracking sensor control unit
472: drive control unit 480: rain drop sensor unit
490: driving light 500: heat exchanger
510: exchange main body 520: spiral coil body
530: circulation motor 540: pressure valve
550, 551: inlet pipe, outlet pipe 600: piping line
610, 620: supply pipe, discharge pipe

Claims (11)

a heat collecting module including a double tube structure that collects solar heat while tracking according to the sun's diurnal altitude, and is provided with a circulating heat medium oil and a heat exchange heat medium oil surrounding the circulating heat medium oil;
a heat exchanger disposed adjacent to the heat collecting module; and
A supply pipe for interconnecting the heat collecting module and the heat exchanger, the supply pipe for supplying the circulating heat medium oil collected by the heat collecting module to the heat exchanger, and a discharge pipe for discharging the circulating heat medium oil after heat exchange in the heat exchanger is completed to the heat collecting module; Includes a piping line that includes,
The heat collecting module,
a heat collecting panel unit coupled to a horizontal frame rotatably connected to the support and provided with a preset curvature;
an inner chassis part connected to the horizontal frame and provided to extend inwardly of the curvature;
an outer oblique part connected to the horizontal frame and provided to extend in a length opposite to the direction in which the heat collecting panel part is disposed; and
and a double heat collecting tube body disposed on the end of the inner chassis part and disposed at a focal point where the multiple paths of the solar heat are gathered in one place,
The double heat collecting tube body,
an outer casing disposed at a point where the multiple paths of the solar heat gather in one place;
an inner tube body arranged to be spaced apart by a preset gap in the outer casing and in which the circulating heat medium oil temporarily resides and flows; and
It is provided at both ends of the inner tube body and the outer casing, and includes a packing portion for sealing the heat exchange heat medium oil remaining in the gap,
The packing part,
a bulkhead spacer coupled to the inner tube body;
a side wall cover screwed to the bulkhead spacer;
a scissor-type clamper for mutually clamping the outer casing and the side wall cover; and
at least one sealing part interposed between the partition wall spacer and the side wall cover;
A protrusion for clamping is provided on the outer casing,
The sealing part may include: a first sealing member interposed between the side wall cover and the partition spacer; and
and a second sealing member interposed between the clamping protrusions in the end region of the side wall cover,
The heat collecting module,
a tracking sensor unit provided at an end of the inner chassis unit to track the circadian altitude of the sun;
a rotation motor provided at both ends of the horizontal frame; and
Solar storage device having a plurality of heat medium oil double heat collecting tube body, characterized in that it further comprises a control unit for controlling the driving of the rotation motor from the sensing signal of the tracking sensor unit. delete delete delete According to claim 1,
The heat collecting panel unit,
a round frame provided on the horizontal frame and provided to be rounded with the curvature; and
A solar storage device having a double heat collecting tube body of a plurality of heat medium oil, which is disposed on both sides with respect to the center of the horizontal frame and includes first and second heat collecting plates coupled to the round frame. 6. The method of claim 5,
The first and second heat collecting plates are a solar storage device having a double heat collecting tube body of a plurality of heat medium oil, characterized in that provided separately from each other. According to claim 1,
the heat exchanger,
exchange body;
a spiral coil body arranged spirally inside the exchange main body, a supply pipe and a discharge pipe are respectively connected at both ends to circulate the circulating heat medium oil; and
A solar thermal storage device having a double heat collecting tube body of a plurality of heat medium oils, characterized in that it includes a circulation motor for circulating and driving the circulating heat medium oil. According to claim 1,
A coating layer is provided on the outer surface of the outer casing,
The coating layer is a solar storage device having a double heat collecting tube body of a plurality of heat medium oils, characterized in that the deposition process is made of porous silicon carbide (SiC, Silicon Carbide) or other inorganic materials that ensure high emissivity, chemical resistance and heat resistance. delete delete According to claim 1,
The heat exchange heat medium oil has a relatively high specific heat compared to the circulating heat medium oil and has a large viscosity.

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