KR102183271B1 - Solar-heat collecting device - Google Patents

Abstract

The present invention relates to a solar heat collecting device, a vertical support provided with at least one in the form of a column, a horizontal support coupled in a horizontal direction to an upper portion of the vertical support, and a horizontal sensor provided at both ends of the horizontal support, It may include a reflecting plate installed on the upper portion of the horizontal support, a fixture fixed to the upper portion of the plate, and a heat collector provided at an end of the fixture to heat the heat medium.

Description

Solar-heat collecting device

The present invention relates to a solar heat collecting device, and to a solar heat collecting device capable of continuously monitoring a change in an angle using a horizontal sensor after installation and after installation.

As is well known, solar heat has an infinite amount of residual heat, and a device that collects solar heat and efficiently absorbs solar heat for heating applications in general homes and collects heat through heat exchange is called a heat collecting device. There is a need for a heat collecting device that is inexpensive and has high efficiency.

That is, the efficiency of the solar heat collecting device is determined by the heat collecting plate installed in the heat collecting device, and the function of absorbing solar heat is determined, and the heat medium inside the heat collecting plate is heated by the heat collecting plate in which solar heat is absorbed and heated by the heat collecting plate with excellent solar heat absorption function. Heating or hot water is supplied by repeating the heating process by air or water by the same heated heat medium. Such a heat collecting plate is usually a flat plate type, a vacuum tube type, and a centralized type, but it is usually a vacuum tube type heat collecting plate that is widely spread in terms of economic efficiency. to be.

When installing such a solar heat collecting device, a fine angle determines the efficiency, but the existing solar heat collecting device has a problem that there is no means for detecting such a change during or after installation.

1. Korean Patent Registration No. 10-1032022 (registered on April 22, 2011) 2. Korean Patent Registration No. 10-0986295 (registered on October 01, 2010)

The present invention relates to a solar heat collecting device capable of continuously monitoring a change in an angle using a horizontal sensor during installation and after installation.

The objects of the embodiments of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. .

According to an embodiment of the present invention, a vertical support provided with at least one in the form of a column, a horizontal support coupled in a horizontal direction to an upper portion of the vertical support, a horizontal sensor provided at both ends of the horizontal support, and the It may include a reflecting plate installed on the upper portion of the horizontal support, a fixture fixed to the upper portion of the judge plate, and a heat collector provided at an end of the fixture to heat the heat medium.

In addition, the vertical support may include a pedestal fixed to the lower portion and supported in a vertical direction.

In addition, the horizontal support may include a worm gear that moves so that the angle is changed.

In addition, it may further include a control unit connected to the horizontal support and the horizontal sensor to control the operation.

According to the present invention, by using a horizontal sensor, heat collection efficiency can be maintained by continuously monitoring a change in an angle during an installation process and after installation.

1 is a view showing a solar heat collecting device according to an embodiment of the present invention,
2 is a diagram showing a solar thermal system for an industrial process.

Advantages and features of the embodiments of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, and only these embodiments make the disclosure of the present invention complete, and are common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same components throughout the specification.

In describing the embodiments of the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to the intention or custom of users or operators. Therefore, the definition should be made based on the contents throughout this specification.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a solar heat collecting device according to an embodiment of the present invention, Figure 2 is a view showing a solar thermal system for an industrial process.

Referring to FIG. 2, the solar thermal system for an industrial process includes a solar heat collecting unit 10, a heat medium circulation unit 20, a heat storage unit 30, a steam generating unit 40, a condensate tank unit 50, and a steam pipe unit ( 60), a steam header part 70, a steam boiler part 80, a brackish water separation part 90, and the like.

The heat medium circulation unit 20 may be provided with a first valve 22 on the fork so that the heat medium is moved through the heat medium pipe 21 and selectively provides the heat medium to the heat storage unit 30 or the steam generator 40. have.

The heat storage unit 30 is connected to the heat medium circulation unit 20, and the heat medium may be stored or circulated.

Here, the heat storage unit 30 is a heat storage device necessary to store the solar heat collected by the solar heat collection unit 10 and supply it at a required time. In solar thermal systems, heat storage is necessary because the time of collection and use do not coincide. Solar heat storage includes sensible heat storage and latent heat storage using a phase change material, but sensible heat storage is mainly used for heat storage by raising the temperature of water for low temperature.

There may be various forms depending on whether a solar heat collecting heat exchanger is inserted into the heat storage unit 30, and whether a hot water heat exchanger or a hot water tank is inserted into the heating heat storage unit. Most of the solar heat storage units are contraction heat storage units that increase the temperature of water to store thermal energy, and there is a temperature stratification device in which water with high temperature is located at the top of the heat storage tank and water with low temperature is located at the bottom.

In addition, the heat storage unit 30 may circulate the heat medium to the solar heat collection unit 10 when the temperature of the heat medium is 0 to 120°C or steam production is not required.

The steam generating unit 40 is connected to the heat medium circulation unit 20, and heat exchange occurs through the heat medium, thereby producing steam.

In addition, in the steam generating unit 40, condensed water is circulated, and the steam generated through heat exchange may be moved to the upper portion and moved to the steam pipe unit 60.

The condensed water tank 50 is a condensate tank 51 that stores and discharges water to supply water to the steam generator 40, a condensate pipe 52 through which condensate moves, and the condensate water is transferred to the steam generator 40 It may include a condensate pump 53 to pressurize to move.

Here, the condensed water tank 50 may be circulated again and enter the condensed water passing through the steam generating unit 40, and when the water level is lower than the standard due to the evaporation or consumption of the condensed water as a water level is provided therein, Quantity can be supplied.

The steam pipe unit 60 is connected to the steam generating unit 40, the steam header unit 70, and the steam boiler unit 80, and the steam generated by the steam generating unit 40 and the steam boiler unit 80 is a steam header. It can be supplied to the part 70.

' 형태로 형성되고 갈래에 제2 밸브(61)가 형성되고, 상부는 스팀보일러부(80), 하부는 스팀발생부(40), 우측은 스팀헤더부(70)와 연결될 수 있다.In addition, the steam pipe part 60 is'

The second valve 61 may be formed in a'shape, and may be connected to the steam boiler unit 80 at the upper portion, the steam generating unit 40 at the lower portion, and the steam header unit 70 at the right.

Here, when the amount of steam generated by the steam generating unit 40 is sufficient, the path to the top is blocked and the steam generated by the steam generating unit 40 may be directly moved to the steam header unit 70. .

And, if the amount of steam generated by the steam generating unit 40 is insufficient, the steam generated by the steam generating unit 40 is immediately moved to the steam header unit 70, and then the path to the lower portion is blocked and the steam The steam generated in the boiler unit 80 may be directly moved to the steam header unit 70.

The steam header part 70 is connected to the steam pipe part 60 to receive the steam produced by the steam generating part 40 and the steam boiler part 80, and supply steam to the manufacturing facility.

The steam boiler unit 80 is connected to the steam pipe unit 60 and may additionally supply steam to the steam header unit 70 when steam is insufficient.

The radix separation unit 90 is connected to the heat medium circulation unit 20 to separate moisture and air from the high temperature heat medium.

Referring to Figure 1, the solar heat collecting device is a vertical support 110, horizontal support 120, horizontal sensor 130, a counterweight 140, a reflector 150, a fixture 160 to collect solar heat and heat the heat medium. ), a collector 170, and the like.

Here, oil or water may be used as the heat medium. Water can be used as a heat medium in a low-temperature system of 100℃ or less used for heating buildings, and oil can be used as a heat medium in a high-temperature system of 300℃ or less used for supplying high-temperature hot water or steam for industrial processes. In the case of the oil type, pressure is prevented from increasing at high temperatures, and steam can be supplied through a steam heat exchanger.

At least one of the vertical supports 110 may be provided in the form of a pillar, and the lower portion may be fixed to the pedestal 111 to be supported in a vertical direction.

The horizontal support 120 is provided in a horizontal direction and may be coupled to an upper portion of the vertical support 110.

In addition, the horizontal support 120 is installed with a worm gear, the angle can be changed while moving, and can be operated under the control of the controller.

The horizontal sensors 130 are provided at both ends of the horizontal support 120, and if the horizontal is shifted during construction or operation, it is transmitted to the control unit to stop construction and operation, thereby increasing facility stability.

The counterweight 140 may be installed on the horizontal support 120 to balance while moving left and right.

Here, the counterweight 140 may include a counterweight 141 having an upper portion coupled to the horizontal supporter 120 in the form of an'H', a weight weight 142 provided under the counterweight 141, and the like. .

The present invention includes a reflective plate 150 that primarily reflects sunlight and a reflective surface 173a of a heat collector 170 to be described later that secondly reflects the sunlight reflected by the reflector 150 and condenses it on a heat medium pipe. can do.

The reflector 150 may be installed to be fixed to the upper portion of the horizontal support 120 to reflect sunlight to collect heat.

In addition, the reflector 150 may be moved together according to the movement of the horizontal support 120.

In addition, the reflector 150 may be formed of any one of a polished aluminum sheet, a stainless steel sheet, and a copper sheet. It is made by splicing it into small pieces divided into several pieces or by making it into one side.

In addition, the reflector 150 may be made of glass in order to increase reflectance. Glass is inconvenient to handle or install due to its weak strength, so despite its excellent reflective performance, there are many problems. The present invention can overcome these drawbacks by configuring the reflector with double glass.

Here, the reflective plate 150 is a double glass, and a metal coating layer is formed between the glasses, and a film for bonding may be provided between the glasses.

In addition, the metal coating layer 152 may be formed of one metal selected from aluminum, silver, and chromium. Since the bonding film 153 is deposited under the metal coating layer 152 and the reflectance of metals such as silver is high, there is no significant difference between the single glass structure and the reflectance, so the condensing rate does not drop, and it is exposed to the outside. And it has the advantage of being able to lower the damage rate according to other environmental factors.

Here, the bonding film maintains the bonding between the metal coating layer and the glass and protects the metal coating layer. A film for bonding may be disposed or coated between the metal coating layer and the glass, and any film capable of bonding the metal coating layer and the glass and protecting the metal coating layer may be used without limitation. It may be a transparent material or an opaque material. As a transparent material, a urethane film may be used, and a bonding film may be formed by spraying urethane or UV coating.

In the present invention, if a bonding film having sufficient strength to protect the metal coating layer is used, the second glass may be omitted.

The fixing table 160 may be coupled to the reflecting plate 150 in an upward direction to be fixed, and a plurality of fixing tables 160 may be provided depending on the number of collectors 170.

The collector 170 may be provided at the end of the fixing table 160 to heat the heat medium.

Here, the collector 170 may include a vacuum tube 171, a connection plate 172, a vacuum tube heat storage unit 173, and the like, referring to FIG. 3.

The vacuum tube 171 is formed in a hollow tube shape so that the inside of the vacuum tube 171 is maintained, and a heat medium pipe may be inserted into the inside of the vacuum tube 171 in the longitudinal direction.

The connection plate 172 is located between the vacuum tube 171 and the vacuum tube heat storage unit 173, and some or all of the sunlight incident on the vacuum tube 171 is a connection plate by the reflective surface 173a of the vacuum tube heat storage unit 173 It may be installed along the length direction of the vacuum tube 171 so as to be focused on 172 and transfer heat to the heat medium pipe.

In addition, the connection plate 172 may be fixed on the vacuum tube heat storage unit 173 to contact the heat medium pipe, or may be fixed to contact the heat medium pipe through the vacuum tube heat storage unit 173 from the inner surface of the vacuum tube 171 .

Here, the connection plate 172 is made of a metal material such as aluminum, stainless steel, or copper, so that heat transfer efficiency can be improved.

The vacuum tube heat storage unit 173 may be spaced apart from the inner surface of the vacuum tube 171 or may be provided in close contact with the inner surface of the vacuum tube 171.

In addition, the vacuum tube heat storage unit 173 may include a reflective surface 173a and a heat storage body 173b.

Here, the reflective surface 173a may be formed of any one of a polished aluminum sheet, a stainless steel sheet, and a copper sheet, and may be formed into small pieces divided into several pieces or made into one surface.

The reflective surface 173a is located at the focal point of the reflector 150, that is, at the center of the radius of curvature. Looking at the flow of sunlight incident on the solar system of the present invention, after the sunlight incident on the concave surface of the reflector 150 is reflected, it is reflected back from the concave surface of the reflective surface 173a to reach the heat medium pipe 210 do.

In addition, the reflective surface 173a may be made of glass to increase reflectance. A metal coating layer is formed between the glass with double glass, and a film for bonding may be provided between the glasses.

In addition, since the bonding film is deposited under the metal coating layer and the reflectance of metals such as silver is high, there is no significant difference between the single glass structure and the reflectance, so the condensing rate does not decrease, and natural disasters and other environmental factors are exposed to the outside. There is an advantage that it can lower the damage rate according to the.

Here, the bonding film maintains the bonding between the metal coating layer and the glass and protects the metal coating layer. A film for bonding may be disposed or coated between the metal coating layer and the glass, and any film capable of bonding the metal coating layer and the glass and protecting the metal coating layer may be used without limitation. It may be a transparent material or an opaque material. As a transparent material, a urethane film may be used, and a bonding film may be formed by spraying urethane or UV coating.

In the present invention, if a bonding film having sufficient strength to protect the metal coating layer is used, the second glass may be omitted.

As described above, when the reflective surface 173a is made of a metal material such as an aluminum sheet, a stainless steel sheet, or a copper sheet, the reflectance of sunlight reaches a maximum level of 70%, and the reflective surface 173a absorbs the rest. In the existing reflective surface 173a structure, energy of absorbed sunlight is consumed as heat.

In order to reduce such energy consumption, a heat storage body 173b including a phase change material absorbing heat generated from the reflective surface 173a may be provided on the rear surface of the reflective surface 173a.

Since such a phase change material absorbs a large amount of latent heat at a constant temperature, it is used as a means for heat storage or temperature control. Recently, research and development have been attempted to utilize a paraffin sheet, a phase change material, as an opening of a building or a wall finishing material.

Here, the phase change material refers to a material that stores heat or releases heat while the state of the material changes from solid to liquid or from liquid to solid as temperature changes. The phase change material exists in a solid state at a temperature lower than the melting point, and when thermal energy is applied, the solid state does not change and only the temperature rises. Likewise, the phase change material exists in a liquid state at a temperature higher than the melting point, and when thermal energy is applied, the liquid state does not change and only the temperature increases. The heat required when the temperature rises in this way is called sensible heat. In addition, the phase change material is a state in which a solid and a liquid coexist at a temperature corresponding to the melting point, and even when thermal energy is applied, this heat is used only for the change of state, and temperature change does not occur. This heat is called latent heat.

The phase change material may be selected as one of various types capable of absorbing latent heat while changing a phase from a solid to a liquid at a constant temperature or releasing heat while changing a phase from a liquid to a solid.

Phase change materials can be classified into organic phase change materials with low density, high latent heat, small corrosion and small volume expansion, and inorganic phase change materials with high density, high latent heat, strong corrosiveness and high volume expansion. In addition, it is desirable to set an appropriate ratio according to the object and purpose to be applied.

The phase change material applied to the present invention is a material having a phase change temperature, that is, a melting point in the range of 50 to 150°C, and such a phase change material includes sugars such as paraffin-based material, salt hydrate-based material, glycerol, xylitol, and sorbitol. Alcohol, etc.

The phase change material used in the present invention absorbs heat as the phase change material changes from solid to liquid when the solar irradiation is sufficient, and when the solar irradiation decreases, the phase change material changes from liquid to solid, and the connection plate 172 ) To provide heat to the heat medium pipe 210.

By transferring the heat absorbed by the heat storage material 173b to the heat medium pipe 210 through the connection plate 172, constant heating is possible by supplying constant heat regardless of the climate, thereby maintaining a constant temperature of the heat medium. There is an advantage.

The heat storage body 173b may be formed of a phase change material, and may be a heat storage sheet formed by impregnating a phase change material with a nonwoven fabric. Impregnation is a mixture of a phase change material and a resin having adhesiveness in a liquid state to penetrate into the nonwoven fabric, and the impregnated phase change material is cured with the resin to form a soft sheet.

The heat storage body 173b may be formed by being coated on the rear surface of the reflective surface 173a. As a coating method, a part or all of the group consisting of polyol resin, urethane resin, epoxy resin, silicone resin, etc. is selected and used in order to secure adhesion as a binder of the coating material, and graphite fine powder is mixed with the coating material to increase the thermal conductivity. It can be coated, and as a solvent mixed with the coating material to store the phase change material, binder, and graphite fine powder in a liquid state to facilitate coating, any one of methyl ethyl ketone, toluene, xylene, isoproalcohol, and butyl acetate Or it may be made of a combination of these.

According to the present invention, by using a horizontal sensor, heat collection efficiency can be maintained by continuously monitoring a change in an angle during an installation process and after installation.

In the above description, various embodiments of the present invention have been presented and described, but the present invention is not necessarily limited thereto, and those of ordinary skill in the art to which the present invention pertains may It will be easy to see that branch substitutions, modifications and changes are possible.

110: vertical support 120: horizontal support
130: horizontal sensor 140: counterweight
150: reflector 160: fixture
170: collector

Claims (4)

At least one vertical support provided in the form of a column,
A horizontal support coupled in a horizontal direction to an upper portion of the vertical support,
A horizontal sensor provided at both ends of the horizontal support,
A reflector installed on the upper part of the horizontal support,
A fixture fixed to the upper portion of the reflector,
A collector provided at the end of the fixing unit to heat the heat medium;
Solar heat including a balance base having an upper portion coupled to the horizontal support in a'H' shape and a weight provided at the lower part of the balance table, and a balance weight installed on the horizontal support and moving left and right to balance the horizontal support Collector.
The method of claim 1,
The vertical support is fixed to the bottom of the solar heat collecting device including a support to be supported in a vertical direction.
The method of claim 1,
The horizontal support is a solar heat collecting device including a worm gear moving so that the angle is changed.
The method of claim 1,
Solar heat collecting device further comprises a control unit connected to the horizontal support and the horizontal sensor to control the operation.

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