WO2013180525A1

WO2013180525A1 - High temperature heat source apparatus of high efficiency using solar energy

Info

Publication number: WO2013180525A1
Application number: PCT/KR2013/004832
Authority: WO
Inventors: 장현지; 장태선; 장우담
Original assignee: Chang Hyun Ji; Chang Tae Sun; Chang Woo Dam
Priority date: 2012-06-01
Filing date: 2013-05-31
Publication date: 2013-12-05
Also published as: KR101336602B1

Abstract

The present invention relates to a high temperature heat source apparatus of high efficiency for maximizing the efficiency of focusing and accumulating the solar radiant heat as a heat source. The heat source apparatus of the present invention comprises: a sunlight focusing plate functioning as a parabolic reflector for focusing and reflecting the sunlight so as to accumulate high temperature heat; a heat collection tube mounted in the center of the inside of the sunlight focusing plate for collecting the heat reflected from the sunlight focusing plate to heat a heat medium fluid; a sun follow device for turning the sunlight focusing plate along the moving track of the sun; a circulation pump with a conveying tube line for circulating and conveying the heat medium fluid heated by the heat collection tube; a storage vessel for storing the heat medium fluid of high temperature coming through the conveying tube line as a heat source; and a supply part for discharging and distributing the stored heat source of high temperature for application. Therefore, the present invention enables the storage vessel of a small volume to maximize the storage of the heat amount with intensified heat energy, and provides means for replacing a highly priced fuel such as oil, gas, etc., thus contributing to economy and eco-friendly effects without generating byproduct and waste.

Description

High efficiency high temperature heat source device using solar heat

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, to date, 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.

In order to achieve the above object, the present invention provides an apparatus for accumulating solar heat and using it as a heat source, the light collecting plate having a parabolic reflector function for collecting and reflecting sunlight to collect high temperature heat, and inside the light collecting plate. A heat collecting tube installed at the center to collect heat reflected from the light collecting plate and heating the fruit medium as the collected heat; a solar tracking device for rotating the light collecting plate according to the trajectory of the sun; and the fruit heated at the heat collecting tube Circulating pump and conveying line for circulating and conveying the fluid, and a reservoir for storing the heated high temperature fruit medium conveyed by the conveying line as a heat source, and discharging the heat source stored in the reservoir to the heat using apparatus. Provided is a high-efficiency high temperature heat source device using solar heat including a supply to distribute.

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 reflecting 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;

FIG. 2 is a sectional view showing a light collecting plate and a heat collecting tube of the device of FIG. 1; FIG. And

3 is a flow chart for explaining the operation of the device of FIG.

Best Mode for Carrying Out the Invention An apparatus for accumulating solar heat and using it as a heat source includes a light collecting plate having a parabolic reflector function that collects and reflects sunlight to collect high-temperature heat, and the inside of the light collecting plate. A heat collecting tube installed at the center to collect heat reflected from the light collecting plate and heating the fruit medium as the collected heat; a solar tracking device for rotating the light collecting plate according to the trajectory of the sun; and the fruit heated at the heat collecting tube Circulating pump and conveying line for circulating and conveying the fluid, and a reservoir for storing the heated high temperature fruit medium conveyed by the conveying line as a heat source, and discharging the heat source stored in the reservoir to the heat using apparatus. Provided is a high-efficiency high temperature heat source device using solar heat including a supply to distribute.

In a preferred embodiment, the reflector of the light collecting plate has a curved shape having a reflection angle so as to be linearly and evenly distributed under sunlight.

In this case, the reflector is a stainless steel thin plate, mirror-treated to increase the reflection efficiency.

In a preferred embodiment, the heat collecting tube is a medium injection tube in which the fruit medium is injected, a heat absorption tube made of a copper alloy absorbing heat reflected from the reflector outside the medium injection tube to conduct heat to the medium injection tube, and It consists of a vacuum chamber made of quartz in a vacuum insulation state outside the medium inlet pipe and the heat absorbing pipe.

At this time, the fruit medium is a thermal decomposition and corrosion, less aging and less expansion coefficient oil.

In addition, the reservoir is preferably filled with a round stone and fruit medium of a predetermined size therein.

Hereinafter, exemplary 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 of the light collecting plate 10 to rotate the light collecting plate 10 according to the 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 medium 63 in the storage tank 60 is heated by the fruit heat medium of the high temperature 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 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, the solar light 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 of the vacuum insulated state to 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 high temperature heat source accumulated in the storage tank 60 is supplied to the heat-using device such as a heating device and 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 total heat quantity Qt is the difference ΔT between the used temperature To and the accumulated temperature Ts, and the larger the temperature difference is, the smaller the storage amount V becomes (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.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, the high-efficiency high temperature heat source device using solar heat according to the present invention can be utilized in the solar energy development and application industry that can replace expensive fuel such as oil or gas.

Claims

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 for storing the heated high temperature fruit medium, which is transferred by the transfer pipe, as a heat source; And

A high-efficiency high temperature heat source device using solar heat comprising a supply unit for discharging and distributing the heat source stored in the reservoir to the heat using device.
The high-efficiency high temperature heat source device using solar heat according to claim 1, wherein the reflector of the light collecting plate has a curved shape having a reflection angle so as to be linearly and evenly distributed under sunlight.
The high-efficiency high temperature heat source device using solar heat according to claim 2, wherein the reflector is a stainless steel thin plate, and is mirror-polished to increase reflection efficiency.
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.
The high-efficiency high temperature heat source device using solar heat according to claim 1, wherein the storage tank is filled with a round stone having a predetermined size and a fruit medium.