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WO2011145847A2 - Heat-collecting apparatus for a solar water heater - Google Patents

Heat-collecting apparatus for a solar water heater Download PDF

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Publication number
WO2011145847A2
WO2011145847A2 PCT/KR2011/003581 KR2011003581W WO2011145847A2 WO 2011145847 A2 WO2011145847 A2 WO 2011145847A2 KR 2011003581 W KR2011003581 W KR 2011003581W WO 2011145847 A2 WO2011145847 A2 WO 2011145847A2
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WO
WIPO (PCT)
Prior art keywords
heat
heat collecting
water heater
solar water
cross
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2011/003581
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French (fr)
Korean (ko)
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WO2011145847A3 (en
Inventor
왕증권
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CERAMICBANK CO LTD
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CERAMICBANK CO LTD
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Publication of WO2011145847A2 publication Critical patent/WO2011145847A2/en
Publication of WO2011145847A3 publication Critical patent/WO2011145847A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00—Arrangements for storing heat collected by solar heat collectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
    • F24S10/74—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits the tubular conduits are not fixed to heat absorbing plates and are not touching each other
    • F24S10/742—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits the tubular conduits are not fixed to heat absorbing plates and are not touching each other the conduits being parallel to each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems

Definitions

  • the present invention relates to a heat collecting device, and more particularly, to a heat collecting device for collecting solar heat in a solar water heater for supplying hot water using solar heat.
  • solar water heater refers to a device that supplies hot water for heating or hot water supply of a house or building using solar heat.
  • FIG. 1 is a schematic view showing a solar water heater according to the prior art
  • Figure 2 is a cross-sectional view of the A-A direction of FIG.
  • the solar water heater 1 includes a reflector 2 reflecting solar heat and a vacuum glass tube that receives heat from the sun directly or reflected by the reflector 2. And a heat storage tank (6) for heating the cold water supplied using the heat supplied from the heat collecting device (5) with hot water, wherein the heat storage tank (6) has a heat exchanger for heating.
  • the machine 7 is installed.
  • the vacuum glass tube 3 is arranged side by side in the longitudinal direction of the heat storage tank (6) to form a single layer, the vacuum glass tube In the lower part of (3), the reflecting plate 2 which reflects solar heat is arrange
  • the installation space efficiency is low, and the reflecting plate 2 is made of a plane, the area where the incident solar heat is not reflected in the direction of the vacuum glass tube 3
  • the amount of solar heat incident on the vacuum glass tube 3 is reduced, thereby lowering thermal efficiency.
  • an embodiment of the present invention is to improve the efficiency of the installation space of the heat collecting device and to improve the thermal efficiency by allowing the radiant heat to be transferred in the direction of the vacuum glass tube from the bottom of the vacuum glass tube Related to a heat collector for solar water heaters.
  • a heat collecting device for a solar water heater characterized in that a plurality of rows of heat collecting tubes are arranged up and down alternately, and a heat insulating layer is formed below the collecting pipe.
  • the plurality of rows of heat collecting tubes are preferably arranged in a zigzag shape in cross section, and may be arranged in a plurality of layers.
  • a heat absorption coating film may be formed on the upper surface of the heat insulation layer, and the curved surface is preferably formed so that solar heat is reflected in the direction of the heat collecting tube.
  • the curved surface may be formed of any one or more cross-sectional shape selected from semi-circular, parabolic, triangular, trapezoidal.
  • the arrangement of the heat collecting tubes may form a cross-sectional curve, wherein the upper surface of the heat insulating layer preferably has a cross-sectional curve corresponding to the arrangement of the heat collecting tubes.
  • a plurality of rows of heat collecting tubes are arranged to form a plurality of layers in a vertical zigzag form, so that a plurality of conventional heat collecting tubes are arranged in one layer spaced apart from each other. By doing so, the empty space between the waste heat collecting tubes can be used efficiently.
  • FIG. 1 is a schematic view of a conventional solar water heater.
  • FIG. 2 is a cross-sectional view along the direction A-A of FIG.
  • FIG 3 is a cross-sectional view of a heat collecting device for a solar water heater according to an embodiment of the present invention.
  • Figure 4a is a cross-sectional view showing a curved surface of semi-circular cross-sectional shape is formed on the surface of the heat insulating layer according to an embodiment of the present invention.
  • Figure 4b is a cross-sectional view showing a curved surface of the triangular cross-sectional shape is formed on the surface of the heat insulating layer according to an embodiment of the present invention.
  • Figure 5 is a cross-sectional view showing a state that the heat collecting tube is arranged in a curved form according to another embodiment of the present invention.
  • Figure 3 is a cross-sectional view of the heat collecting device for solar water heater according to an embodiment of the present invention
  • Figure 4a is a cross-sectional view showing a semi-circular cross-sectional curved surface formed on the surface of the heat insulating layer according to an embodiment of the present invention
  • Figure 4b In accordance with one embodiment of the invention is a cross-sectional view showing a curved surface of the triangular cross-section formed on the surface of the heat insulating layer.
  • a plurality of rows of heat collecting tubes 30 are alternately arranged up and down in the longitudinal direction of the heat storage tank 6 (see FIG. 1).
  • the heat insulating layer 40 may be further formed below the heat collecting tube 30.
  • the plurality of heat collecting tubes 30 made of a vacuum glass tube, one end is connected to the heat storage tank and the other end extends in the direction of the ground, and are arranged to be inclined with the ground in the longitudinal direction of the heat storage tank, respectively, as shown in FIG. It is preferable that the heat collecting tubes 30 are arranged alternately up and down to form a plurality of rows, and the plurality of rows of collecting tubes 30 are arranged in a zigzag shape in cross section in a horizontal direction or a height direction.
  • the upper collecting tubes 31 are arranged in a plurality of rows spaced apart from each other by a predetermined interval on the same plane.
  • the heat collecting pipes 32 are arranged in a plurality of rows so as to be arranged in a space between the heat collecting pipes 31 of the upper layer on the same plane of the bottom of the heat collecting pipes 31 of the upper layer, and in the left and right directions, It is preferable that the lower heat collecting tubes 32 are arranged alternately.
  • the vertical space and the horizontal space between the heat collecting pipe 30 may be appropriately selected according to the design conditions.
  • FIG. 3 an example in which a plurality of rows of heat collecting pipe 30 is formed in two layers is illustrated. That is, three or more layers, such as three or four layers may be formed, of course, and at this time, it is also preferable to arrange the lower collecting tube 32 in the space between the upper collecting tubes 31.
  • the plurality of rows of heat collecting tubes 30 are arranged to form a plurality of layers alternately up and down, so that solar heat, which has been projected into the separation spaces 3a (see FIG. 2) between the heat collecting tubes, is again generated in the lower heat collecting tubes 32. Since it is possible to collect the heat, the heat collecting efficiency is improved.
  • the heat insulation layer 40 is formed under the plurality of rows of collecting tubes 30.
  • the heat insulating layer 40 is preferably formed of a material having excellent thermal insulation and thermal insulation, such as styrofoam, urethane resin, the heat insulating layer 40 stores the solar heat projected to the bottom of the heat collecting tube 30, the heat collecting tube 30 By radiating the stored solar heat to the lower side of the), serves to improve the thermal efficiency of the heat collecting tube (30).
  • a heat absorption coating film 41 is formed on the upper surface of the heat insulating layer 40, and can be reflected in the direction of the heat collecting tube 30 with respect to solar heat that is not absorbed and reflected from the surface of the heat insulating layer 40. It is preferable that the curved surface 42 is formed on the upper surface of the heat insulating layer 40.
  • the curved surface 42 may be formed in a cross-sectional shape corresponding to the design conditions, such as the shape of the heat collecting tube 30 and the solar reflection direction, for example, is formed in a semi-circular cross-sectional shape as shown in FIG. 4B may be formed in a triangular cross-sectional shape.
  • it can be formed into various cross-sectional shapes, such as parabolic or trapezoidal, depending on the design conditions, such as reflection angle.
  • a separate frame (not shown) may be installed below the heat insulation layer 40.
  • Figure 5 is a cross-sectional view showing a state in which the heat collecting tube is arranged in a curved form according to another embodiment of the present invention.
  • the shape of the upper heat collecting tube 31 may be arranged to form a cross-sectional curve L.
  • the upper heat collecting tube 31 may be arranged.
  • the shape of the lower layer of the heat collecting tube 32 is also arranged to form a cross-sectional curve, the upper surface of the heat insulating layer 40 including the curved surface 42 to correspond to the arrangement of the heat collecting tube 30 as a whole It is preferable to form a cross section curve.
  • the curved shape in which the upper heat collecting tube 31 is arranged and the curved shape in which the lower collecting heat pipe 32 is arranged may be formed differently.
  • the upper collecting pipe 31 may be arranged flat and the lower collecting pipe 32 may be concave downward, and the upper collecting pipe 31 may be convexly arranged upward and the lower collecting pipe 32 may be arranged.
  • both sides of the heat insulating layer 40 is slightly protruded upwards, it is preferable to be formed in a form that surrounds both outer sides of the arranged heat collecting pipe 30, this form is applicable to the heat insulating layer in the above-described embodiment.
  • the projected solar heat is first collected by the heat collecting pipe 31 of the upper layer, and projected or passed through the heat collecting tube 31 of the upper layer. Solar heat is collected again by the lower heat collecting pipe 32.
  • the solar heat projected to the bottom of the heat collecting tube 32 of the lower layer is absorbed by the heat insulating layer 40 through the heat absorption coating film 41, a part of which is reflected on the curved surface 42 of the heat insulating layer 40, the heat collecting tube 30 Is transmitted to the heat collecting layer 30 from the heat insulation layer 40 to the heat collecting tube 30.
  • the solar water heater collector 10 according to the preferred embodiment of the present invention, there is an effect that the heat collecting efficiency is improved compared to the prior art collector.
  • the present invention can be used for a heat collecting device, and more particularly, in a solar water heater supplying hot water using solar heat, it can be used for a heat collecting device for collecting solar heat.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The present invention relates to a heat-collecting apparatus for a solar water heater. According to one embodiment of the present invention, provided is a heat-collecting apparatus for a solar water heater, in which heat-collecting pipes are arranged into a plurality of rows such that the heat-collecting pipes alternate with one another in terms of the position thereof in the vertical direction, and a heat insulation layer is formed beneath the heat-collecting pipes. The heat-collecting apparatus of the present invention achieves the effects of improved thermal efficiency.

Description

태양열 온수기용 집열장치Heat collector for solar water heater

본 발명은 집열장치에 관한 것으로, 더욱 상세하게는 태양열을 이용하여 온수를 공급하는 태양열 온수기에 있어서, 태양열을 집열하는 집열장치에 관한 것이다.The present invention relates to a heat collecting device, and more particularly, to a heat collecting device for collecting solar heat in a solar water heater for supplying hot water using solar heat.

최근, 에너지원의 확보에 있어서 자원의 고갈과 화석연료의 연소에 따른 환경오염이 심각한 문제로 대두되고 있으며, 이에 따라 신재생 에너지원의 확보를 위해 주요 선진국을 중심으로 그 개발이 활발히 진행되고 있다.Recently, the depletion of resources and environmental pollution due to the burning of fossil fuels have emerged as a serious problem in securing energy sources. Accordingly, the development is actively progressing in major developed countries to secure renewable energy sources. .

이러한 신재생 에너지원의 하나로서 태양열 에너지를 들 수 있으며, 태양열 온수기라 함은 태양열을 이용하여 주택이나 건물의 난방 또는 급탕을 위한 온수를 공급하는 장치를 일컫는다.One of such renewable energy sources is solar energy, and solar water heater refers to a device that supplies hot water for heating or hot water supply of a house or building using solar heat.

도 1은 종래기술에 따른 태양열 온수기를 나타낸 개략도이고, 도 2는 도 1의 A-A 방향 단면도이다.1 is a schematic view showing a solar water heater according to the prior art, Figure 2 is a cross-sectional view of the A-A direction of FIG.

도 1과 도 2에 도시된 바와 같이 종래기술에 따른 태양열 온수기(1)는, 태양열을 반사시키는 반사판(2)과 태양으로부터 직접 또는 반사판(2)에 의해 반사된 태양열을 공급받아 열전달시키는 진공유리관(3)을 포함하는 집열장치(5)와, 집열장치(5)로부터 공급되는 열을 이용하여 급수되는 냉수를 온수로 가열하는 축열조(6)를 포함하여 이루어지며, 축열조(6)에는 난방용 열교환기(7)가 설치된다.As shown in FIG. 1 and FIG. 2, the solar water heater 1 according to the related art includes a reflector 2 reflecting solar heat and a vacuum glass tube that receives heat from the sun directly or reflected by the reflector 2. And a heat storage tank (6) for heating the cold water supplied using the heat supplied from the heat collecting device (5) with hot water, wherein the heat storage tank (6) has a heat exchanger for heating. The machine 7 is installed.

이때, 도 2에 도시된 바와 같이, 종래기술에 따른 태양열 온수기용 집열장치(5)의 경우, 진공유리관(3)이 축열조(6)의 길이방향으로 나란히 배열되어 하나의 층을 이루고, 진공유리관(3)의 하부에는 태양열을 반사하는 반사판(2)이 평면 형태로 배치된다.At this time, as shown in Figure 2, in the case of the heat collector 5 for the solar water heater according to the prior art, the vacuum glass tube 3 is arranged side by side in the longitudinal direction of the heat storage tank (6) to form a single layer, the vacuum glass tube In the lower part of (3), the reflecting plate 2 which reflects solar heat is arrange | positioned in planar form.

따라서, 각각의 진공유리관(3) 사이에 형성되는 간격으로 인해, 설치공간 효율이 낮고, 반사판(2)이 평면으로 이루어짐에 따라, 입사된 태양열이 진공유리관(3) 방향으로 반사되지 못하는 영역이 발생되거나, 반사된 태양광이 입사되는 태양광과 충돌함으로써 진공유리관(3)으로 입사되는 태양열의 양을 감소시켜 열효율이 저하되는 문제가 있다.Therefore, due to the spacing formed between each of the vacuum glass tubes 3, the installation space efficiency is low, and the reflecting plate 2 is made of a plane, the area where the incident solar heat is not reflected in the direction of the vacuum glass tube 3 When the generated or reflected sunlight collides with the incident sunlight, the amount of solar heat incident on the vacuum glass tube 3 is reduced, thereby lowering thermal efficiency.

본 발명은 상술한 바와 같은 문제점을 해결하기 위해 안출된 것으로, 본 발명의 일실시예는 집열장치의 설치공간 효율을 향상시키고 진공유리관의 하부에서 진공유리관 방향으로 복사열이 전달되도록 함으로써 열효율을 향상시킨 태양열 온수기용 집열장치와 관련된다.The present invention has been made to solve the problems described above, an embodiment of the present invention is to improve the efficiency of the installation space of the heat collecting device and to improve the thermal efficiency by allowing the radiant heat to be transferred in the direction of the vacuum glass tube from the bottom of the vacuum glass tube Related to a heat collector for solar water heaters.

본 발명의 바람직한 일실시예에 의하면, 다수열의 집열관을 상하 교대로 배치하고, 집열관의 하부에는 단열층이 형성되는 것을 특징으로 하는 태양열 온수기용 집열장치가 제공된다.According to one preferred embodiment of the present invention, there is provided a heat collecting device for a solar water heater, characterized in that a plurality of rows of heat collecting tubes are arranged up and down alternately, and a heat insulating layer is formed below the collecting pipe.

여기서, 다수열의 집열관은 단면상 지그재그 형태로 배열되는 것이 바람직하고, 다수의 층으로 배열될 수 있다.Here, the plurality of rows of heat collecting tubes are preferably arranged in a zigzag shape in cross section, and may be arranged in a plurality of layers.

또한, 단열층의 상측표면에는 열흡수 코팅막이 형성될 수 있으며, 태양열이 집열관 방향으로 반사되도록 굴곡면이 형성되는 것이 바람직하다.In addition, a heat absorption coating film may be formed on the upper surface of the heat insulation layer, and the curved surface is preferably formed so that solar heat is reflected in the direction of the heat collecting tube.

이때, 굴곡면은 반원형, 포물선형, 삼각형, 사다리꼴형 중에서 선택되는 어느 하나 이상의 단면형상으로 이루어질 수 있다.At this time, the curved surface may be formed of any one or more cross-sectional shape selected from semi-circular, parabolic, triangular, trapezoidal.

*아울러, 집열관의 배열형태는 단면상 곡선을 이룰 수 있는데, 이때 단열층의 상측표면은 집열관의 배열형태에 대응되는 단면상 곡선형상을 이루는 것이 바람직하다.In addition, the arrangement of the heat collecting tubes may form a cross-sectional curve, wherein the upper surface of the heat insulating layer preferably has a cross-sectional curve corresponding to the arrangement of the heat collecting tubes.

본 발명의 바람직한 일실시예에 따른 태양열 온수기용 집열장치에 의하면, 다수열의 집열관이 상하방향 지그재그 형태로 다수의 층을 이루게끔 배열됨으로써, 종래 다수의 집열관이 서로 이격하여 하나의 층으로 배열됨으로써 낭비되었던 집열관 사이의 빈 공간을 효율적으로 이용할 수 있다.According to a solar collector for a solar water heater according to an embodiment of the present invention, a plurality of rows of heat collecting tubes are arranged to form a plurality of layers in a vertical zigzag form, so that a plurality of conventional heat collecting tubes are arranged in one layer spaced apart from each other. By doing so, the empty space between the waste heat collecting tubes can be used efficiently.

또한, 집열관의 하부에 단열층을 형성하여 집열관의 하부로 투사된 태양열이 외부로 빠져나가는 것을 방지하는 한편, 단열층으로부터 복사열이 집열관의 하부로 열전달되게끔 함으로써 열효율이 향상되는 효과가 있다.In addition, by forming a heat insulating layer on the lower portion of the heat collecting tube to prevent the solar heat projected to the lower portion of the heat collecting tube to escape to the outside, and heat radiation from the heat insulating layer to the lower portion of the heat collecting tube, thereby improving the thermal efficiency.

또한, 단열층의 표면에 열흡수 코팅막을 형성함으로써 단열층의 열용량을 증가시켜, 단열층으로부터 집열관의 하부 방향으로 복사되는 복사열을 증가시킬 수 있으며 아울러, 단열층의 표면에 굴곡면을 형성하여 집열관 하부로 투사되는 태양열이 집열관 방향으로 반사되게끔 하여 열효율을 향상시킬 수 있다.In addition, by forming a heat absorption coating film on the surface of the heat insulating layer to increase the heat capacity of the heat insulating layer, it is possible to increase the radiant heat radiated from the heat insulating layer to the lower direction of the heat collecting tube, and to form a curved surface on the surface of the heat insulating layer to the bottom of the heat collecting tube The projected solar heat can be reflected toward the collector tube to improve thermal efficiency.

도 1은 종래의 태양열 온수기의 개략도.1 is a schematic view of a conventional solar water heater.

도 2는 도 1의 A-A 방향 단면도.2 is a cross-sectional view along the direction A-A of FIG.

도 3은 본 발명의 일실시예에 따른 태양열 온수기용 집열장치의 단면도.3 is a cross-sectional view of a heat collecting device for a solar water heater according to an embodiment of the present invention.

도 4a는 본 발명의 일실시예에 따라 단열층 표면에 반원형 단면형상의 굴곡면이 형성된 모습을 보인 단면도.Figure 4a is a cross-sectional view showing a curved surface of semi-circular cross-sectional shape is formed on the surface of the heat insulating layer according to an embodiment of the present invention.

도 4b는 본 발명의 일실시예에 따라 단열층 표면에 삼각형 단면형상의 굴곡면이 형성된 모습을 보인 단면도.Figure 4b is a cross-sectional view showing a curved surface of the triangular cross-sectional shape is formed on the surface of the heat insulating layer according to an embodiment of the present invention.

도 5는 본 발명의 다른 실시예에 따라 집열관이 곡선 형태로 배열되는 모습을 보인 단면도.Figure 5 is a cross-sectional view showing a state that the heat collecting tube is arranged in a curved form according to another embodiment of the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10 : 태양열 온수기용 집열장치10: collector for solar water heater

30 : 집열관30: collecting pipe

40 : 단열층40: heat insulation layer

41 : 열흡수 코팅막41: heat absorption coating film

42 : 굴곡면42: curved surface

이하, 본 발명의 일실시예에 따른 태양열 온수기용 집열장치의 바람직한 실시예를 첨부된 도면을 참조하여 설명하기로 한다. 이 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다.Hereinafter, a preferred embodiment of a heat collecting device for a solar water heater according to an embodiment of the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 하여 내려져야 할 것이다.In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

아울러, 아래의 실시예는 본 발명의 권리범위를 한정하는 것이 아니라 본 발명의 청구범위에 제시된 구성요소의 예시적인 사항에 불과하며, 본 발명의 명세서 전반에 걸친 기술사상에 포함되고 청구범위의 구성요소에서 균등물로서 치환 가능한 구성요소를 포함하는 실시예는 본 발명의 권리범위에 포함될 수 있다.In addition, the following examples are not intended to limit the scope of the present invention but merely illustrative of the components set forth in the claims of the present invention, which are included in the technical spirit throughout the specification of the present invention and constitute the claims Embodiments that include a substitutable component as an equivalent in the element may be included in the scope of the present invention.

실시예EXAMPLE

도 3은 본 발명의 일실시예에 따른 태양열 온수기용 집열장치의 단면도, 도 4a는 본 발명의 일실시예에 따라 단열층 표면에 반원형 단면형상의 굴곡면이 형성된 모습을 보인 단면도, 도 4b는 본 발명의 일실시예에 따라 단열층 표면에 삼각형 단면형상의 굴곡면이 형성된 모습을 보인 단면도이다.Figure 3 is a cross-sectional view of the heat collecting device for solar water heater according to an embodiment of the present invention, Figure 4a is a cross-sectional view showing a semi-circular cross-sectional curved surface formed on the surface of the heat insulating layer according to an embodiment of the present invention, Figure 4b In accordance with one embodiment of the invention is a cross-sectional view showing a curved surface of the triangular cross-section formed on the surface of the heat insulating layer.

도 3에 도시된 바와 같이, 본 발명의 일실시예에 따른 태양열 온수기용 집열장치(10)는 축열조(6, 도 1 참조)의 길이방향으로 다수열의 집열관(30)이 상하 교대로 배치되며, 집열관(30)의 하부에는 단열층(40)이 더 형성될 수 있다.As shown in FIG. 3, in the heat collecting device 10 for the solar water heater according to the exemplary embodiment of the present invention, a plurality of rows of heat collecting tubes 30 are alternately arranged up and down in the longitudinal direction of the heat storage tank 6 (see FIG. 1). The heat insulating layer 40 may be further formed below the heat collecting tube 30.

이때, 진공유리관으로 이루어지는 다수의 집열관(30)은 일단이 축열조에 연결되고 타단은 지면방향으로 연장되어, 축열조의 길이방향을 따라 각각 지면과 경사지게 배치되는데, 도 3에 도시된 바와 같이 다수의 집열관(30)이 상하 교대로 배치되어 다수열을 이루고, 다수열의 집열관(30)은 좌우방향 또는 높이방향으로 단면상 지그재그 형태가 되게끔 배열되는 것이 바람직하다.At this time, the plurality of heat collecting tubes 30 made of a vacuum glass tube, one end is connected to the heat storage tank and the other end extends in the direction of the ground, and are arranged to be inclined with the ground in the longitudinal direction of the heat storage tank, respectively, as shown in FIG. It is preferable that the heat collecting tubes 30 are arranged alternately up and down to form a plurality of rows, and the plurality of rows of collecting tubes 30 are arranged in a zigzag shape in cross section in a horizontal direction or a height direction.

예를 들어, 도 3에 도시된 바와 같이 상하 2개의 층을 이루도록 집열관(30)을 배치하는 경우, 상층의 집열관(31)은 동일 평면상에서 소정 간격 서로 이격하여 다수열로 배열되고, 하층의 집열관(32)은 상층의 집열관(31) 하부의 동일 평면상에서 상층의 집열관(31) 사이 공간에 각각 배치되도록 다수열로 배열되어, 좌우방향으로는 상층의 집열관(31)과 하층의 집열관(32)이 교대로 배치되게 하는 것이 바람직하다.For example, when the heat collecting tubes 30 are arranged to form two upper and lower layers, as shown in FIG. 3, the upper collecting tubes 31 are arranged in a plurality of rows spaced apart from each other by a predetermined interval on the same plane. The heat collecting pipes 32 are arranged in a plurality of rows so as to be arranged in a space between the heat collecting pipes 31 of the upper layer on the same plane of the bottom of the heat collecting pipes 31 of the upper layer, and in the left and right directions, It is preferable that the lower heat collecting tubes 32 are arranged alternately.

이때, 집열관(30) 사이의 상하방향 간격과 좌우방향 간격은 설계조건에 따라 적절히 선택될 수 있으며, 도 3에서는 다수열의 집열관(30)이 상하 2개의 층을 이루는 예를 도시하였으나 다수층 즉, 3층 또는 4층 등 3개 이상의 층을 이룰 수도 있음은 물론이고, 이때에도 역시 상층의 집열관(31) 사이 공간에 하층의 집열관(32)이 배치되도록 하는 것이 바람직하다.In this case, the vertical space and the horizontal space between the heat collecting pipe 30 may be appropriately selected according to the design conditions. In FIG. 3, an example in which a plurality of rows of heat collecting pipe 30 is formed in two layers is illustrated. That is, three or more layers, such as three or four layers may be formed, of course, and at this time, it is also preferable to arrange the lower collecting tube 32 in the space between the upper collecting tubes 31.

또한, 전술한 실시예에서는 상층의 집열관(31)들이 동일 평면상에 배열되고, 하층의 집열관(32)들이 상층의 집열관(31) 하부의 동일 평면상에 배열되는 예를 설명하였으나, 이에 한정되지 않고 서로 다른 평면상에 배열됨으로써 배열된 형태가 단면상 곡선을 이룰 수도 있음은 물론이다.In addition, in the above-described embodiment, an example in which the upper heat collecting tubes 31 are arranged on the same plane and the lower collecting tubes 32 are arranged on the same plane below the upper collecting tube 31 is described. It is a matter of course that the shapes arranged by different planes may form curved cross-sections.

이처럼, 다수열의 집열관(30)이 상하 교대로 다수의 층을 이루게끔 배열됨으로써, 종래 집열관 사이의 이격공간(3a, 도 2 참조)으로 투사되었던 태양열을 하층의 집열관(32)에서 다시 집열할 수 있게 되어 집열효율이 향상되는 효과가 있다.As such, the plurality of rows of heat collecting tubes 30 are arranged to form a plurality of layers alternately up and down, so that solar heat, which has been projected into the separation spaces 3a (see FIG. 2) between the heat collecting tubes, is again generated in the lower heat collecting tubes 32. Since it is possible to collect the heat, the heat collecting efficiency is improved.

다수열의 집열관(30) 하부에는 단열층(40)이 형성된다. 이때 단열층(40)은 스티로폼, 우레탄수지 등 보온성과 단열성이 우수한 소재로 형성되는 것이 바람직한데, 이 단열층(40)은 집열관(30)의 하부로 투사된 태양열을 저장하는 한편, 집열관(30)의 하측으로 저장된 태양열을 복사함으로써, 집열관(30)의 열효율을 향상시키는 역할을 한다.The heat insulation layer 40 is formed under the plurality of rows of collecting tubes 30. At this time, the heat insulating layer 40 is preferably formed of a material having excellent thermal insulation and thermal insulation, such as styrofoam, urethane resin, the heat insulating layer 40 stores the solar heat projected to the bottom of the heat collecting tube 30, the heat collecting tube 30 By radiating the stored solar heat to the lower side of the), serves to improve the thermal efficiency of the heat collecting tube (30).

이를 위해, 단열층(40)의 상부표면에는 열흡수 코팅막(41)이 형성되는 것이 바람직하며, 단열층(40)의 표면에서 흡수되지 못하고 반사되는 태양열에 대하여는, 집열관(30) 방향으로 반사될 수 있도록 단열층(40)의 상부표면에 굴곡면(42)이 형성되는 것이 바람직하다.To this end, it is preferable that a heat absorption coating film 41 is formed on the upper surface of the heat insulating layer 40, and can be reflected in the direction of the heat collecting tube 30 with respect to solar heat that is not absorbed and reflected from the surface of the heat insulating layer 40. It is preferable that the curved surface 42 is formed on the upper surface of the heat insulating layer 40.

이때, 굴곡면(42)은 집열관(30)의 형상과 태양열 반사방향 등의 설계조건에 대응되는 단면형상으로 형성될 수 있으며, 예를 들어 도 4a에 도시된 바와 같이 반원형 단면형상으로 형성되거나, 도 4b에 도시된 바와 같이 삼각형 단면형상으로 형성될 수 있다. 이외에 반사각도 등 설계조건에 따라 포물선형이나 사다리꼴형 등 다양한 단면형상으로도 형성될 수 있음은 물론이다.At this time, the curved surface 42 may be formed in a cross-sectional shape corresponding to the design conditions, such as the shape of the heat collecting tube 30 and the solar reflection direction, for example, is formed in a semi-circular cross-sectional shape as shown in FIG. 4B may be formed in a triangular cross-sectional shape. In addition, it can be formed into various cross-sectional shapes, such as parabolic or trapezoidal, depending on the design conditions, such as reflection angle.

또한, 단열층(40)을 지지하기 위해, 단열층(40)의 하부에는 별도의 프레임(미도시)이 설치될 수 있다.In addition, in order to support the heat insulation layer 40, a separate frame (not shown) may be installed below the heat insulation layer 40.

한편, 도 5는 본 발명의 다른 실시예에 따라 집열관이 곡선 형태로 배열되는 모습을 보인 단면도이다.On the other hand, Figure 5 is a cross-sectional view showing a state in which the heat collecting tube is arranged in a curved form according to another embodiment of the present invention.

본 발명의 다른 실시예에 의하면, 도 5에 도시되는 바와 같이 상층의 집열관(31)이 배열되는 형태가 단면상 곡선(L)을 이루도록 배치될 수 있는데, 이때 상층의 집열관(31)이 배열되는 형태에 대응하여 하층의 집열관(32)의 배열도 단면상 곡선을 이루도록 배치되며, 단열층(40)의 상부표면 역시 집열관(30)의 배열형태에 대응되도록 굴곡면(42)을 포함하여 전체적으로 단면상 곡선을 이루는 것이 바람직하다.According to another embodiment of the present invention, as shown in FIG. 5, the shape of the upper heat collecting tube 31 may be arranged to form a cross-sectional curve L. In this case, the upper heat collecting tube 31 may be arranged. Corresponding to the shape of the lower layer of the heat collecting tube 32 is also arranged to form a cross-sectional curve, the upper surface of the heat insulating layer 40 including the curved surface 42 to correspond to the arrangement of the heat collecting tube 30 as a whole It is preferable to form a cross section curve.

이때, 상층의 집열관(31)이 배열되는 곡선형태와 하층의 집열관(32)이 배열되는 곡선형태가 서로 다르게 형성되는 것도 가능하다.At this time, the curved shape in which the upper heat collecting tube 31 is arranged and the curved shape in which the lower collecting heat pipe 32 is arranged may be formed differently.

즉, 상층의 집열관(31)은 평평하게 배열되고 하층의 집열관(32)은 아래로 오목하게 배열될 수도 있고, 상층의 집열관(31)은 위로 볼록하게 배열되고 하층의 집열관(32)은 평평하거나 아래로 오목하게 배열될 수도 있는 것이며, 이러한 배열형태는 설계조건에 따라 다양하게 선택될 수 있다.That is, the upper collecting pipe 31 may be arranged flat and the lower collecting pipe 32 may be concave downward, and the upper collecting pipe 31 may be convexly arranged upward and the lower collecting pipe 32 may be arranged. ) May be arranged flat or concave down, this arrangement may be selected in various ways depending on the design conditions.

또한, 단열층(40)의 양측은 상측으로 약간 돌출되어, 배열된 집열관(30)의 양쪽 외측을 감싸는 형태로 형성되는 것이 바람직한데, 이러한 형태는 전술한 실시예에서의 단열층에도 적용 가능하다.In addition, both sides of the heat insulating layer 40 is slightly protruded upwards, it is preferable to be formed in a form that surrounds both outer sides of the arranged heat collecting pipe 30, this form is applicable to the heat insulating layer in the above-described embodiment.

본 발명의 바람직한 일실시예에 따른 태양열 온수기용 집열장치(10)에 의하면, 투사되는 태양열은 먼저 상층의 집열관(31)에 의해 집열되고, 상층의 집열관(31)을 비켜서 투사되거나 통과하는 태양열은 하층의 집열관(32)에 의해 다시 집열된다.According to the heat collecting device for solar water heater 10 according to a preferred embodiment of the present invention, the projected solar heat is first collected by the heat collecting pipe 31 of the upper layer, and projected or passed through the heat collecting tube 31 of the upper layer. Solar heat is collected again by the lower heat collecting pipe 32.

이때, 하층의 집열관(32) 하부로 투사된 태양열은 열흡수 코팅막(41)을 통해 단열층(40)에 흡수되는데, 일부는 단열층(40)의 굴곡면(42)에 반사되어 집열관(30)으로 전달되며, 일부는 단열층(40)에서 집열관(30)으로 열복사형태로 전달된다.At this time, the solar heat projected to the bottom of the heat collecting tube 32 of the lower layer is absorbed by the heat insulating layer 40 through the heat absorption coating film 41, a part of which is reflected on the curved surface 42 of the heat insulating layer 40, the heat collecting tube 30 Is transmitted to the heat collecting layer 30 from the heat insulation layer 40 to the heat collecting tube 30.

따라서, 본 발명의 바람직한 일실시예에 따른 태양열 온수기용 집열장치(10)에 의하면, 종래기술의 집열장치에 비해 집열효율이 향상되는 효과가 있다.Therefore, according to the solar water heater collector 10 according to the preferred embodiment of the present invention, there is an effect that the heat collecting efficiency is improved compared to the prior art collector.

본 발명은 집열장치에 사용가능한 것으로, 더욱 상세하게는 태양열을 이용하여 온수를 공급하는 태양열 온수기에 있어서, 태양열을 집열하는 집열장치에 사용가능하다. The present invention can be used for a heat collecting device, and more particularly, in a solar water heater supplying hot water using solar heat, it can be used for a heat collecting device for collecting solar heat.

Claims (7)

다수열의 집열관을 상하 교대로 배치하고, 상기 집열관의 하부에는 단열층이 형성되는 것을 특징으로 하는 태양열 온수기용 집열장치.The heat collecting device for solar water heater, characterized in that a plurality of rows of heat collecting pipes are arranged alternately up and down, the lower portion of the heat collecting tube is formed with a heat insulating layer. 청구항 1에 있어서,The method according to claim 1, 상기 다수열의 집열관은 단면상 지그재그 형태로 배열되는 것을 특징으로 하는 태양열 온수기용 집열장치.The heat collecting pipe of the plurality of rows is a heat collector for solar water heater, characterized in that arranged in a zigzag form on the cross-section. 청구항 1에 있어서,The method according to claim 1, 상기 단열층의 상측표면에 열흡수 코팅막이 형성되는 것을 특징으로 하는 태양열 온수기용 집열장치.Heat collecting device for solar water heater, characterized in that the heat absorption coating film is formed on the upper surface of the heat insulating layer. 청구항 1에 있어서,The method according to claim 1, 상기 단열층의 상측표면에는 태양열이 상기 집열관 방향으로 반사되도록 굴곡면이 형성되는 것을 특징으로 하는 태양열 온수기용 집열장치.The upper surface of the heat insulating layer is a heat collecting device for solar water heater, characterized in that the curved surface is formed so that solar heat is reflected in the direction of the heat collecting tube. 청구항 4에 있어서,The method according to claim 4, 상기 굴곡면은 반원형, 포물선형, 삼각형, 사다리꼴형 중에서 선택되는 어느 하나 이상의 단면형상으로 이루어지는 것을 특징으로 하는 태양열 온수기용 집열장치.The curved surface is a heat collecting device for solar water heater, characterized in that consisting of at least one cross-sectional shape selected from semicircular, parabolic, triangular, trapezoidal. 청구항 2에 있어서,The method according to claim 2, 상기 다수열의 집열관은 다수의 층으로 배열되는 것을 특징으로 하는 태양열 온수기용 집열장치.The heat collecting pipe of the plurality of rows is a heat collecting device for solar water heater, characterized in that arranged in a plurality of layers. 청구항 2에 있어서,The method according to claim 2, 상기 집열관의 배열형태는 단면상 곡선을 각각 이루며, 상기 단열층의 상측표면은 상기 집열관의 배열형태에 대응되는 단면상 곡선형상을 이루는 것을 특징으로 하는 태양열 온수기용 집열장치.The arrangement of the heat collecting tube is a cross-sectional curve, respectively, wherein the upper surface of the heat insulating layer is a heat collecting device for a solar water heater, characterized in that forming a cross-sectional curve corresponding to the arrangement of the heat collecting tube.
PCT/KR2011/003581 2010-05-19 2011-05-16 Heat-collecting apparatus for a solar water heater Ceased WO2011145847A2 (en)

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KR1020100046945A KR20110127450A (en) 2010-05-19 2010-05-19 Heat collector for solar water heater
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WO2011145847A3 (en) 2012-05-03

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