KR20210061819A - Solar energy storage system having dual heat-collecting tubes using multiple heating medium oil - Google Patents

Abstract

The present invention relates to a solar energy storage apparatus having dual heat-collecting tubes using multiple heating medium oil, which can comprise: a heat collection module which collects solar heat by tracking along a revolution altitude of the sun, and includes a circulation heating medium oil and a dual pipe structure covering the circulation heating medium oil; a heat exchanger adjacent to the heat collection module; and a pipeline which includes a supply pipe which connects the heat collection module to the heat exchanger and supplies the circulation heating medium oil collected in the heat collection module to the heat exchanger, and a discharge pipe which discharges the circulation heating medium oil, which has completely conducted the heat exchange in the heat exchanger, to the heat collection module. According to the present invention, the solar energy storage apparatus having the dual heat-collecting tubes using multiple heating medium oil is able to increase a contact area through a corrugated pipe unit, improve the heat absorption volume through a coating layer on an outer casing than before, and as the heating medium oil with a relatively high specific heat and viscosity covers the circulation heating medium oil and is packed into a packing unit, the heat storage time of the circulation heating medium oil can be increased, also improving waste heat recovery rate. At the same time, the sealing force of the heat exchange heating medium oil is secured, thereby improving heat collection yield and reducing apparatus operation and control costs.

Description

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 oil, and more particularly, having a double heat collecting tube body of a plurality of heat medium oil which can be safe by improving heat collecting efficiency and improving sealing property compared to the prior art. It relates to solar storage devices.

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

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

Among them, the solar heat storage device includes a heat collecting plate of a certain standard and a circulation pipe through which the working fluid flows inside the circulation pipe adjacent to the heat collecting plate, so that radiant heat from the sun is irradiated to the circulation pipe, and the fluid is heated to perform heat exchange by water or heat medium oil. Can be used through. In such solar storage devices, the heat collection yield is the main issue, and research and development on single-pipe or double-pipe type heat collection structures are active.

However, in the case of the conventional single piping structure, there is a problem in that the heat absorption amount sharply decreases or changes rapidly according to external environmental changes such as thunder and lightning during the daytime or the absolute irradiation time of sunlight in winter is reduced, so that a uniform and constant heat collecting yield cannot be secured. .

In addition, the heat collecting part of the double pipe structure of the inner pipe and the outer pipe surrounding it is provided in the same manner as the working fluid circulating in the inner pipe, so heat exchange does not occur smoothly, and there is a possibility of leakage, leakage, or explosion at the joints of the inner and outer pipes. Therefore, 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, and it is possible to increase the contact area through the corrugated pipe and improve the heat absorption amount compared to the conventional through a coating layer on the outer casing, and the heat exchange heat medium oil having a relatively high specific heat and viscosity is used as a circulating heat medium oil. By enclosing and packing in a packing part, the heat storage time of the circulating heat medium oil is increased, the waste heat recovery rate is improved, and the heat collection yield is improved by securing the sealing power of the heat exchange heat medium oil, and the dual collection of multiple heat medium oils that can reduce the operation and management cost of the device. It provides a solar thermal storage device having a tube body.

The solar 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 being tracked according to the circumferential degree of the sun, and wraps the circulating heat medium oil and the circulating heat medium oil. A heat collecting module provided so as to include a double pipe 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 to supply 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, which has been heat-exchanged in the heat exchanger, to the heat collecting module. It may include a piping line including 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 part connected to the horizontal frame and provided to extend in length toward the inside of the curvature; An outer perspective part connected to the horizontal frame and provided to extend in a length opposite to a 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 at one place; An inner tube body which is spaced apart by a predetermined gap in the outer casing and temporarily retains and flows the circulating heat medium oil therein; And a packing portion provided at both ends of the inner tube body and the outer casing, and sealing 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 solar circumference; Rotation motors provided at both ends of the horizontal frame; And a control unit for driving and controlling the rotational 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 to be separated from each other.

The heat exchanger includes: an exchange body; A spiral coil body arranged in a spiral shape 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 with a porous silicon carbide (SiC, Silicon Carbide) or other inorganic material to ensure high emissivity, chemical resistance, and heat resistance.

The packing unit may include a partition wall spacer coupled to the inner tube body; A side wall cover screwed to the partition wall spacer; A scissor-type clamper for clamping the outer casing and the side wall cover to each other; And at least one sealing portion interposed between the partition wall spacer and the side wall cover.

The outer casing is provided with a clamping protrusion, and the sealing part includes: a first sealing member interposed between the side wall cover and the partition wall 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 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 and improve the amount of heat absorption compared to the prior art through a coating layer on the outer casing, and a heat exchange heat medium having a relatively high specific heat and viscosity. By enclosing the oil-priced circulating heat medium oil and packing it into a 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 to improve the heat collection yield, and the operation and management cost of the device can be reduced.

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

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

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 perspective view of 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 exchanger 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. It 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 oil according to an embodiment of the present invention collects solar heat while being tracked according to the circumferential direction of the sun, as shown in FIGS. 1 to 7, and the 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 which interconnects the heat collecting module 400 and the heat exchanger 500 to supply the circulating heat medium oil collected by the heat collecting module 400 to the heat exchanger 500, and the heat exchanger It may include a piping line 600 including a discharge pipe 620 for discharging the circulating heat medium oil, which has been heat-exchanged in the unit 500, to the heat collecting module 400.

The heat collecting module 400 is a device that substantially collects solar heat while being tracked according to the circumference of the sun. For this purpose, the heat collecting module 400 is mainly coupled to a horizontal frame 410 that is rotatably connected to the support 401, referring 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 in length toward the inside 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 part 430 and disposed at a focal point where the multiple paths of the solar heat gather in one place.

In addition, the heat collecting module 400 may include a tracking sensor unit 460 provided at an end of the inner chassis unit 430 to track the circumference of the sun; Rotating motors 450 provided at both ends of the horizontal frame 410; And a control unit 470 for driving and controlling the rotary motor 450 from the sensing signal of the tracking sensor unit 460.

A horizontal frame 410 may be provided on the support 401 so as to be rotatable.

A heat collecting panel part 420 may be provided on the horizontal frame 410. The heat collecting panel part 420 is provided on the horizontal frame 410, and 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 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, sunlight guided by the first and second heat collecting plates 421 and 422 may be provided in a structure capable of being concentrated to the focus of the curvature, that is, the double heat collecting tube body 100 due to a preset curvature. Here, the preset curvature is the physical properties of the first and second heat collecting plates 421 and 422 itself (e.g., reflectance, heat collecting capacity, etc.), or the specifications of the first and second heat collecting plates 421 and 422 (e.g., size, thickness, etc.) Etc.).

The plate surfaces of the first and second heat collecting plates 421 and 422 may be subjected to a surface treatment so that the reflectance of solar heat and light energy is maximized, and the surface treatment level is a level at which the absorption rate of sunlight is minimized (e.g., mirror Level of surface roughness, etc.). The first and second heat collecting plates 421 and 422 may be provided to be separated 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 degree of the sun.

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

The tracking sensor unit 460 may be mainly provided at an end of the inner chassis unit 430 as shown in FIGS. 3 and 4. The tracking sensor unit 460 may generate a sensing signal by tracking the solar circumference. In addition, a rain 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 connected to the horizontal frame 410 and may be provided to extend in length in a direction opposite to the direction in which the heat collecting plate is disposed. The outer chassis part 440 may have a substantially triangular plate surface, and a mass 441 may be provided at a vertex of a triangle, that is, a lower end of the outer chassis part 440. This mass body 441 reduces the rotational mass when the heat collecting panel part 420 rotates relative to the support 401, and the first and second heat collecting plates 421 and 422 using less power by the rotation motor 450 To be able to rotate.

Through the heat collecting module 400 of this configuration, the heat collecting panel unit 420 is automatically rotated to correspond to the solar circumference, and the first and second heat collecting plates 421 and 422 are arranged at an optimal angle to provide solar heat. To be able to collect.

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

The double heat collecting tube body 100 mainly refers to FIGS. 5 and 6, an outer casing 110 disposed at a point where multiple paths of solar heat gather in one place; An inner tube body 200 which is spaced apart by a predetermined gap in the outer casing 110 and temporarily retains and flows circulating heat medium oil therein; And a packing part 300 provided at both ends of the inner tube body 200 and the outer casing 110 and sealing 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 a porous silicon carbide (SiC) or other inorganic material that ensures high emissivity, chemical resistance, and heat resistance.

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

A compression valve 130 is provided on the outer surface of the outer casing 110, and a change in pressure and a change in the amount of storage of the heat exchange heat medium oil stored and stored in the outer casing 110 can be controlled.

At the end of the outer casing 110, a clamping protrusion 120 is provided, 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 mainly includes a corrugated pipe part 220 provided over a relatively entire area of the inner tube body 200 as shown in FIG. 6 and a connection part 230 provided at both ends of the inner tube body 200 It may include.

The corrugated pipe part 220 may have a corrugated surface corrugated along the longitudinal direction on the outer surface, thereby maximizing the outer surface area of the inner tube body 200. Accordingly, by increasing the contact area between the circulating heat medium oil and the heat exchange heat medium oil, the amount of heat absorption and heat absorption efficiency can be improved compared to the prior art.

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

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) for assisting the flow of the circulating heat medium oil may be formed in the holding block. 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 may 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, leakage of the working fluid occurs at the joint between the outer pipe and the inner pipe, resulting in a lower overall heat collection yield and difficulty in maintaining and maintaining the device.

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

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

The partition wall spacer 310 is a part in which 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, and the partition wall spacer 310 is preferably integrally coupled to the inner tube body 200 by welding. .

The side wall cover 320 may be coupled to the partition wall spacer 310. In this embodiment, the side wall cover 320 has been illustrated and described that the side wall cover 320 is screwed to the partition wall spacer 310, but in order to maximize the sealing force, the screwing may be omitted and may be coupled with the scissor-type clamper 330.

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

In addition, 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 high viscosity compared to the circulating heat medium oil. In this embodiment, the specific heat of the heat exchange heat medium oil may be provided higher than about 0.561 Kcal/kg, °C, and the viscosity of the heat exchange heat medium oil may be provided higher than 19.2 cSt.

In this way, by disposing the physical properties of the heat exchange heat medium oil provided in the inner tube body 200 and the outer casing 110 differently 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.

In other words, even if external environmental changes such as thunder and lightning strikes during the daytime or the absolute irradiation time of sunlight decreases in winter, heat exchange heat medium oil with relatively high specific heat and high viscosity surrounds and protects the circulating heat medium oil. Absorption efficiency does not drop or change abruptly, and heat absorption gradually decreases 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 of increasing the heat storage time of the circulating heat medium oil and improving the waste heat recovery rate.

Meanwhile, a sealing part 340 may be provided between the partition wall 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 partition wall spacer 310. The first sealing member 341 is provided relatively larger than the plate surface of the partition wall spacer 310 and serves to seal most of the plate surface of the partition wall 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. I can. Through the sealing part 340, leakage or leakage of the heat exchange heat medium oil can be prevented even when the temperature of the heat exchange heat medium oil changes.

The scissor-type clamper 330 may mutually clamp 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 the uniform force of the packing unit 300 even with an instantaneous pressure change according to the local temperature change of the heat exchange heat medium oil. Management costs can be reduced.

Through the double heat collecting tube body 100 of this configuration, the contact area through the corrugated pipe part 220 can be increased, and the heat absorption efficiency can be improved compared to the conventional through a coating layer on the outer casing 110, and the specific heat and viscosity are relatively high. As the heat exchange heat medium oil wraps around the circulating heat medium oil and is packed in the packing part 300, the heat storage time of the heat exchange heat medium oil is increased, the waste heat recovery rate is improved, and the overall heat storage efficiency can be improved by securing the sealing power of the heat exchange heat medium oil. A level of heat collection efficiency can be generated.

Piping lines 600 may be connected to both ends of the double collecting tube body 100. The piping line 600 interconnects the heat collecting module 400 and the heat exchanger 500, and a supply pipe 610 for supplying the circulating heat medium oil collected by the heat collecting module 400 to the heat exchanger 500. ), and a discharge pipe 620 for discharging the circulating heat medium oil, which has been heat-exchanged in the heat exchanger 500, to the heat collecting module 400.

The piping line 600 may be connected to the heat exchanger 500. The heat exchanger 500 mainly refers to FIG. 7, the exchange main body 510; A spiral coil body 520 disposed in a spiral shape inside the exchange base body 510; And a circulation motor 530 for circulating and driving the circulating heat medium oil.

The circulation heat medium oil is a single closed loop consisting of a double heat collecting tube body 100, a piping line 600 and a spiral coil body 520 by driving the circulation motor 530 connected to the supply pipe 610 side. , It 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 generates heat. A pressure valve 540 may be provided in the heat exchanger 500 to adjust the pressure in the exchange body 510.

Through this 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 conventional through the coating layer on the outer casing 110, and the heat exchange heat medium oil having a relatively high specific heat and viscosity surrounds the circulating heat medium oil, and the packing part 300 ), the heat storage time of the circulating heat medium oil is increased, the waste heat recovery rate is improved, and the sealing power of the heat exchange heat medium oil is secured, thereby improving the heat collection yield and reducing the operation and management cost of the device.

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

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

Hereinafter, the operation of a solar thermal storage device having a plurality of double heat collecting tube bodies 100 of heat medium oil according to the present 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 circumference of the sun and transmits it to the control unit 470. Accordingly, when the control unit 470 drives 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 angled and adjusted to the optimal position.

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

Next, the heat exchange heat medium oil can be heated. Since the heat exchange heat medium oil has a relatively higher specific heat and viscosity than the circulating heat medium oil, the temperature may increase relatively slowly compared to the circulating heat medium oil.

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

Next, heat exchange with the circulating heat medium oil in the inner tube body 200 occurs 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, and thus can be circulated while being rapidly heated.

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 circulating motor 530.

The collected circulating heat medium oil that has reached the heat exchanger 500 through the supply pipe 610 undergoes heat exchange such as boiling water while passing through the spiral coil body 520. Heat-exchanging water can be discharged through the water outlet pipe. On the other hand, the circulating heat medium oil from which all of the heat has been taken away may be re-introduced into the double heat collecting tube body 100 through the discharge pipe 620 to form one cycle.

Through this operation process, it is possible to increase the contact area through the corrugated pipe part 220 and improve heat absorption efficiency compared to the prior art through a coating layer on the outer casing 110. By enclosing and packing in the packing part 300, the heat storage time of the circulating heat medium oil is increased, the waste heat recovery rate is improved, and the sealing power of the heat exchange heat medium oil is secured, thereby improving the overall heat collection efficiency.

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

As described above, the present invention has been described in detail using preferred embodiments, but the scope of the present invention is not limited to specific embodiments, and should be interpreted by the appended claims. In addition, those who have acquired ordinary knowledge in this technical field should understand that many modifications and variations are possible without departing from the scope of the present invention.

100: double 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: collection module 410: horizontal frame
420: heat collecting panel portion 421, 422: first and second heat collecting plates
423: round frame 430: inner chassis
440: outer chassis part 441: mass
450: rotation motor 460: tracking sensor unit
470: control unit 471: tracking sensor control unit
472: drive control unit 480: rain sensor unit
490: driving light 500: heat exchanger
510: replacement 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 being tracked according to the circumferential road of the sun, and is provided with circulating heat medium oil and 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 to supply 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, which has been heat-exchanged in the heat exchanger, to the heat collecting module. A solar heat storage device having a double heat collecting tube body of a plurality of heat medium oil, characterized in that it comprises a piping line that includes. The method of claim 1,
The collection 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 in length toward the inside of the curvature;
An outer perspective part connected to the horizontal frame and provided to extend in a length opposite to a direction in which the heat collecting panel part is disposed; And
A solar heat storage device having a dual heat collecting tube body of a plurality of heat medium oils, characterized in that it comprises 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 gather at one place. The method of claim 2,
The double collecting tube body,
An outer casing disposed at a point where the multiple paths of the solar heat converge at one place;
An inner tube body which is spaced apart by a predetermined gap in the outer casing and temporarily retains and flows the circulating heat medium oil therein; And
A solar heat storage device having a plurality of double heat collecting tube bodies of heat medium oil, which are provided at both ends of the inner tube body and the outer casing, and include a packing part for sealing the heat exchange heat medium oil remaining in the gap. The method of claim 2,
The collection module,
A tracking sensor unit provided at an end portion of the inner chassis unit to track the circumferential degree of the sun;
Rotation motors provided at both ends of the horizontal frame; And
A solar thermal storage device having a plurality of double heat collecting tube bodies of heat medium oil, further comprising a control unit for driving and controlling the rotation motor from the sensing signal of the tracking sensor unit. The method of claim 2,
The heat collecting panel part,
A round frame provided on the horizontal frame and provided to be rounded with the curvature; And
A solar heat storage device having a plurality of double heat collecting tubes of heat medium oil, comprising first and second heat collecting plates that are disposed on both sides with respect to the center of the horizontal frame and coupled to the round frame. The method of claim 5,
The solar heat storage device having a plurality of double heat collecting tubes of heat medium oil, wherein the first and second heat collecting plates are provided to be separated from each other. The method of claim 1,
The heat exchanger,
Exchange primitive;
A spiral coil body arranged in a spiral shape inside the exchange body; And
A solar heat storage device having a dual heat collecting tube body of a plurality of heat medium oils, characterized in that it comprises a circulating motor for circulating and driving the circulating heat medium oil. The method of claim 3,
A coating layer is provided on the outer surface of the outer casing,
The coating layer is a solar thermal storage device having a double heat collecting tube body of a plurality of heat medium oils, characterized in that the coating layer is deposited with a porous silicon carbide (SiC, Silicon Carbide) or other inorganic material to ensure high emissivity, chemical resistance and heat resistance. The method of claim 3,
The packing part,
A partition wall spacer coupled to the inner tube body;
A side wall cover screwed to the partition wall spacer;
A scissor-type clamper for clamping the outer casing and the side wall cover to each other; And
A solar heat storage device having a plurality of double heat collecting tubes of heat medium oil, characterized in that it comprises at least one sealing part interposed between the partition wall spacer and the side wall cover. The method of claim 9,
The outer casing is provided with a clamping protrusion,
The sealing part may include a first sealing member interposed between the side wall cover and the partition wall spacer; And
And a second sealing member interposed between the clamping protrusions in the end region of the side wall cover. The method of claim 3,
The heat exchange heat medium oil is a solar heat storage device having a dual heat collecting tube body of a plurality of heat medium oils, characterized in that the specific heat is relatively high compared to the circulating heat medium oil and a high viscosity is provided.

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