KR101336602B1 - A solar-heated high temperature heat source apparatus of a high degree of efficiency - Google Patents

Abstract

The present invention relates to a high temperature heat source device with high thermal efficiency using solar heat which uses the solar heat as heating sources by maximizing the efficiency of collecting and storing radiant heat used as heat among the solar heat. The invention comprises a heat collecting plate, a heat collecting pipe, a solar tracking device, a circulating pump, a transfer pipe, a storage tank, and a supply unit. The heat collecting plate has the function of a reflector, which collects high temperature heat by collecting and reflecting solar heat. The heat collecting pipe is installed at the center of the heat collecting plate and collects the heat reflected from the heat collecting plate to heat the heat source fluid by the collected heat. The solar tracking device rotates the heat collecting plate based on the solar orbit. The circulating pump and pipe circulate and transfer the heat source fluid heated in the heat collecting pipe. The storage tank stores the high temperature heat source fluid being transferred by the transfer pipe. The supply unit discharges and distributes the high temperature heat source fluid according to purposes. The invention is capable of maximizing the quantity of heat even though the capacity of the storage tank is small, and providing environment-friendly effects by substituting for high price fuel such as gas and oil as waste and resides are not generated.

Description

A solar-heated high temperature heat source apparatus of a high degree of efficiency

The present invention relates to a device for condensing solar heat and using it as a heat source, and more particularly, to a high-efficiency high temperature heat source device using solar heat to maximize the light collection and accumulation efficiency.

Humanity on earth is now facing two problems that must be solved. The first is the depletion of fossil energy such as oil and coal used by mankind, and the second is the implementation of the Climate Change Convention to prevent global warming due to the increased use of fossil energy. Fossil energy, which humans thought could be used forever, is said to be depleted in decades if used continuously in the same amount.

In order to solve such a difficult problem, clean alternative energy, called 'future energy' or 'green energy' has been in the spotlight, and countries are making huge investments in developing and distributing alternative energy.

However, until now, fossil fuels or electricity are used as heating and heat sources, and problems such as depletion of fossil fuels and pollution due to environmental destruction, supply and demand instability, and rising prices still arise.

As expected now and in the future, the price of fuel is unstable and the supply and demand is not felt well. In particular, after the increase of population, aging, nuclear family, and quality of life, the number of multi-unit housing and rural housing increased, the demand for heating increased due to the development of society, and the demand for farming increased even in farms. And supply and demand prices are very difficult.

In addition, environmental pollution and waste disposal by-products from fuel use are becoming a social problem and are emerging as a consensus on regulation worldwide.

Recently, there are solar hot water system using solar energy, solar house, solar furnace, solar generator, etc., but these existing products use water or air as a medium, so they vaporize at only 60 ℃. In addition, air bubbles are generated to interfere with heat conduction, and thus the utility value is not very large due to low thermal efficiency.

Accordingly, an object of the present invention is to provide a high-efficiency high-temperature heat source device using the solar heat to maximize the light collection and accumulation efficiency of the solar, in view of the above point.

A high-efficiency high temperature heat source device using solar heat according to the present invention for achieving the above object is a parabolic reflector that collects and reflects high temperature heat by collecting and reflecting sunlight in a device for accumulating solar heat and using it as a heat source. A light collecting plate having a function, a heat collecting tube installed at the inner center of the light collecting plate to collect heat reflected from the light collecting plate, and to heat the fruit medium as the collected heat, and a solar tracking device to rotate the light collecting plate according to the trajectory of the sun. And a circulation pump and a transfer pipe for circulating and transporting the heated fruit medium in the heat collecting pipe, and a storage tank for storing the heated high temperature fruit medium flowing by the transfer pipe as a heat source, and in the storage tank. And a supply for discharging and distributing the stored heat source to the heat utilization apparatus.

The high-efficiency high temperature heat source device using the solar heat of the present invention increases the condensing efficiency by receiving solar heat without being influenced by the external atmospheric temperature by linear reflection and vacuum insulation, and accordingly heat transfer oil such as oil By heating at a high temperature and accumulating at a high temperature, it has an effect of providing a heat source that can be used for a long time even at a low capacity because it is environmentally friendly and has a high heat quantity.

In addition, since the installation area is small and simple, it can be installed anywhere where the sun is well-received, and there is little trouble, and it can be used permanently if only the reflective surface of the reflector is kept clean. It is also possible to use a storage battery stored therein.

In addition, it can be widely used as a heat source for heating and cooking and providing hot water in homes, facility cultivation farms, small and medium-sized buildings, and schools.

1 is a schematic perspective view showing a high-efficiency high temperature heat source device using solar heat according to the present invention;
2 is a cross-sectional view showing a light collecting plate and a heat collecting tube of the device of FIG.
3 is a flow chart for explaining the operation of the device of FIG.

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

1 is a schematic perspective view of a high-efficiency high temperature heat source device using solar heat according to the present invention, in which a light collecting plate 10 having a parabolic reflector function to collect and reflect high temperature heat is collected. In the inner central portion of the light collecting plate 10, a heat collecting tube 20 for collecting heat reflected from the light collecting plate 10 and heating the heat transfer oil as the collected heat is fixedly installed. do.

The solar tracking device 30 is installed at the rear surface of the light collecting plate 10 to rotate the light collecting plate 10 according to the moving trajectory of the sun by the rotation of a motor (not shown).

In the heat collecting tube 20, a circulation pump 50 and a conveying pipe 40 for circulating and conveying a fruit medium such as heated oil are installed, and the heated fruit medium is conveyed by the conveying pipe 40. Is configured to be stored in a reservoir 60 of a predetermined size.

The inside of the reservoir 60 is filled with a round stone 61 and a fruit medium 63 with moderate durability, thermal decomposition and corrosion, less aging and a small coefficient of expansion. Here, the stone 61 and the fruit opening value 63 in the storage tank 60 are heated by the high temperature fruit medium which has been transferred by the transfer pipe 40 to maintain a high temperature in the storage tank 60.

One side of the reservoir 60 is provided with a supply unit 70 for discharging and distributing heat to the heat using device side.

2 is a cross-sectional view of the light collecting plate 10 and the heat collecting tube 20 in the high-efficiency high temperature heat source device using the solar heat according to the present invention, the light collecting plate 10 has a reflection angle so as to be uniformly distributed linearly by receiving sunlight. There is provided a reflector 11 made of a stainless steel thin plate having a lightweight curved surface without corrosion resistance and shape deformation, and is subjected to mirror treatment in order to increase the reflection efficiency of the reflector 11. In the inner central portion of the reflector 11, a heat collecting tube 20 for collecting solar heat reflected from the reflector 11 is provided.

The heat collecting tube 20 is provided with a medium injection tube 21 into which the fruit medium 63 is injected, and absorbs heat reflected from the reflector 11, which is a light collecting plate 10, on the outside of the medium injection tube 21. An endothermic tube 23 made of copper alloy that conducts heat to the media inlet tube 21 is installed, and the outside of the media inlet tube 21 and the endothermic tube 23 is quartz of vacuum insulation so as not to be influenced by an external atmospheric temperature. A vacuum chamber 25 made of (Quartz) is provided.

The operation of the high-efficiency high temperature heat source device using the solar heat of the present invention having such a configuration will be described in more detail with reference to FIG. 3.

Figure 3 is a flow chart for explaining the operation of the high-efficiency high temperature heat source device using solar heat according to the present invention.

The sun has a surface temperature of 6,000 degrees Celsius and a central temperature of about 15 million degrees Celsius, which produces enormous amounts of heat and light, reaching a whopping 9.2 x 1022 kcal. Solar radiation reaching the earth is divided into infrared (52%, thermal), visible (43%, lighting and photovoltaic), and ultraviolet (5%, bactericidal and photochemical) depending on the region of its wavelength.

In the present invention, the sun receives and accumulates heat of infrared rays having the most heat.

First, the light collecting plate 10 is installed at an appropriate position to receive sun light such as a roof. That is, the light collecting plate 10 is fixed to the center of the rear surface of the reflector 11 through a support, and the support is firmly coupled to the pedestal. Then, the solar tracking device 30 for rotating the light collecting plate 10 along the movement trajectory of the sun by the rotation of the motor is provided in the center of the support.

In this state of installation, the light condensing plate 10 condenses the sun with high intensity (step 301). When the sun is concentrated on the reflector 11 of the light collecting plate 10, the sun rays linearly reflected by the reflector 11 are focused on the heat collecting tube 20 and rise to a high temperature of 300 ° C. or more. The light collecting plate 10 is always placed at the optimal position of sunlight by the solar tracking device 30 (step 302).

Focused by the reflector 11 and the sunlight is raised to a high temperature of 300 ℃ is concentrated to the heat absorbing tube 23 and the medium injection tube 21 through the vacuum chamber 25 in a vacuum insulation state 300 ℃ The high heat is applied to the heat absorbing tube 23, thereby heating the fruit medium 63 such as oil injected into the medium inlet tube 21 (step 303).

Therefore, when the fruit medium 63 inside the medium inlet tube 21 is heated above a predetermined temperature, it is subjected to a circulation process flowing into the storage tank 60 by the operation of the transfer pump 50 (step 304).

The reservoir 60 is filled with a round stone 61 of a suitable size and a heat medium 63 made of oil, which has little durability, thermal decomposition, corrosion, and aging, and has a small coefficient of expansion. The high heat fruit medium (63) that is oiled to heat the stone 61 and the fruit medium (63) having an optimal size and area that can withstand high heat and can accumulate heat, so that the temperature in the storage tank (60) 300 degrees Celsius high heat is stored (step 305). The heat medium fluid 63 which has cooled down is circulated again through the conveying pipe 40 and conveyed to the medium inlet pipe 21. This cycle is repeated.

The storage tank 60 is secured and controlled through a predetermined control device (step 306), and the heat source of high temperature accumulated in the storage tank 60 is supplied to a heat-using device such as a heating device or a hot water device through the supply unit 70. It is to be supplied (step 307).

On the other hand, even when the sun does not receive the sun for a long time, the heat stored in the reservoir 60 is stored at a high temperature, so the heat level to use, that is, 15 degrees to 25 degrees Celsius can be used for a long time.

The accumulated heat quantity Qt is the difference ΔT between the used temperature To and the accumulated temperature Ts, and the larger the temperature difference, the smaller the storage amount V (Qt ≒ KΔT × V).

In addition, since the installation area is small and simple, it can be installed anywhere where only the sun can get well, and there is little trouble, and it can be used permanently if only the reflecting surface of the reflector is kept clean, which requires very little power. It is also possible to use a storage battery that stores excess power.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

10: light collecting plate 20: heat collecting tube
30: solar tracking device 40: transfer pipe
50: transfer pump 60: reservoir
70 supply part

Claims (6)

In the device for accumulating solar heat and using it as a heat source,
A light collecting plate having a parabolic reflector function for collecting and reflecting sunlight to collect high-temperature heat;
A heat collecting tube installed at an inner center of the light collecting plate to collect heat reflected from the light collecting plate and to heat the fruit medium as the collected heat;
A solar tracking device which rotates the light collecting plate along a moving trajectory of the sun;
A circulation pump and a transfer pipe for circulating and transporting the heating medium fluid heated in the collecting pipe;
A storage tank filled with a round stone and a fruit medium of a predetermined size therein and storing the heated high temperature fruit medium which is transferred by the transfer pipe as a heat source; And
It includes a supply for discharging and distributing the heat source stored in the reservoir to the heat using device,
The reflector of the light collecting plate is made of a curved shape having a reflection angle so as to be uniformly distributed linearly with sunlight, and is mirror-finished to increase reflection efficiency. delete The high-efficiency high temperature heat source device using solar heat according to claim 1, wherein the reflector is a thin steel plate. The method of claim 1, wherein the heat collecting tube
A medium inlet pipe into which the fruit medium is injected;
An endothermic tube made of copper alloy that absorbs heat reflected from the reflector outside the medium inlet tube and conducts heat to the medium inlet tube; And
A high-efficiency high temperature heat source device using solar heat, characterized in that made of a vacuum chamber made of quartz in a vacuum insulation state outside the medium inlet tube and the heat absorbing tube. 5. The high-efficiency, high-temperature heat source device using solar heat according to claim 4, wherein the fruit medium is an oil having less thermal decomposition, corrosion and aging, and a coefficient of expansion. delete

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