KR20060013621A - Collecting method of solar heat by using cylinder lens - Google Patents

Abstract

The present invention relates to a method for obtaining a large amount of high-temperature solar heat from low-density solar energy by combining a cylindrical lens (3) and a long collector tube (5) corresponding to the length of the cylindrical lens (3). will be.

Unlike other lenses, the cylindrical lens 3 focuses on the characteristic of converting low-density solar energy incident in parallel into a line (focal line) rather than a point and converting it into high-density solar energy. In addition, a long arc-shaped heat collecting tube (tubular collector) 5 having a radius of focal length of the cylindrical lens 3 is devised, and the cylindrical lens 3 and the arc-shaped heat collecting tube 5 are focused. By correspondingly combining the length of the focal line 4 at the region of the line 4, the hot solar heat generated from the solar energy converted to high density in the focal line 4 is linearly collected, and the collected heat is collected in the heat collecting tube. (5) Exchange of solar heat flowing through the inside of this long collector tube 5 while heating the surrounding gas (air). By constantly moving to a moving medium (gas or liquid), it moves around the collector tube 5. Heat exchanger through the heat of the heated gas (air) and the inside of the heat collecting pipe (5). Obtaining the heat of the body or fluid), and can be used as a method of using it, or to each used combination.

Thus, one independent solar heat acquisition device (FIG. 1) consisting of one cylindrical lens 3 and one arc-shaped heat collecting tube 5 is expanded to a series connection method or a parallel connection method as needed to obtain a high temperature. It is a method to obtain a large amount of solar heat more efficiently.

Lens, condenser, solar collector,

Description

Collecting method of solar heat by using cylinder lens}             

FIG. 1 illustrates the concept of a solar heat acquiring device for explaining a method of efficiently acquiring high temperature solar heat by combining a cylindrical lens and a heat collecting tube in an optimal state at a focal line 4.

<Description of Symbols for Major Parts of Drawings>

 1: band of light

 2: axial meridian

 3: cylinder lens

 4: focal line

 5: collecting pipe

The present invention relates to a method of acquiring solar heat, and more particularly, to a method of acquiring solar heat by combining a cylindrical lens and a heat collecting tube suitably adapted to the characteristics of the lens. It was created to improve the practicality while efficiently obtaining high temperature and large amount of solar heat by developing a new method.

Solar energy has the disadvantages of first, low density (1.946 cal / cm ² / min.-Solar constant), and second, intermittent sunshine time depending on climatic conditions. To overcome these two shortcomings, high density solar energy and high temperature during sunshine hours. It is important to develop an efficient method for rapidly obtaining a large amount of solar heat. Currently, the method of acquiring solar heat is obtained by receiving parallel incident natural sunlight directly into a condensing object and obtaining a high temperature solar heat by focusing the parallel incident light using a convex lens or condenser. . Among these methods, the method of directly acquiring solar heat using a condensing (thermal) object has no disadvantage of densifying low-density solar energy, so it is possible to obtain low-temperature solar heat, but it is impossible to obtain high-temperature solar heat. The used solar power acquisition method can obtain high-density energy and high temperature solar heat, but has a disadvantage in that the high temperature solar heat generation site is limited to one point of focus.

In order to solve the above problems, the present invention converts low-density solar energy into high-density solar energy and at the same time expands the site of generating high-density solar energy in the form of a line instead of a single point, thereby providing a low density. High-density solar energy, linearization of high-density solar energy, linear expansion of high-temperature solar heat generating site, and suitable heat collection methods for this purpose simultaneously and continuously, and high temperature. It is to obtain a large amount of solar heat efficiently and to overcome the low efficiency caused by intermittent sunshine time.

The present invention is designed to meet the characteristics of the cylindrical lens (3) having a characteristic of converting parallel incident sunlight in the form of a line to convert low-density solar energy into high-density solar energy, and It is characterized by a method of acquiring a large amount of high-temperature solar heat by combining a arc-shaped heat collecting tube 5.

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

Since the cylindrical lens 3 converges the sunlight (the band of sunlight) 1 incident on the surface thereof in the form of a line (hereinafter referred to as a "focal line") instead of a single point (focus), it is low density. Solar energy is converted into high-density energy in the form of lines in the focal line 4, and when the object of the length corresponding to the length of the focal line 4 in the focal line 4 blocks the progress of sunlight Solar heat is produced in the form of. Here, the length of the focal line 4 is directly proportional to the length of the cylindrical lens 3, and the magnitude of the high density solar energy generated in the focal line 4 depends on the size of the width of the cylindrical lens 3, According to this, the length of the cylindrical lens 3 and the width thereof can be set. The surface into which the sunlight enters the cylindrical lens 3 is a plane or an extremely gentle arc shape close to the plane, so that the planar size of the cylindrical lens 3 even when the incident angle of sunlight is 90 degrees or less. And the incident area of the solar light are the same or the incident area is reduced to minimize the thickness, and the thickness from the axial meridian (2) of the cylindrical lens to the solar incident surface is opposite to the transmissive surface. By making it smaller than the thickness up to, the overall shape of the cylindrical lens 3 has asymmetrical shapes in which the shapes of the solar incident surface and the opposite transmission surface are different from each other.

The heat collecting tube 5 has a length of the heat collecting tube 5 in order to collect the heat when the high density solar energy generated in the focal line 3 of the cylindrical lens 3 is converted into solar heat. Correspondingly, the solar heat collected in the elongate collection pipe (3) allows the heat to flow through the interior of the collection pipe (5) while being constantly exchanged for this heat exchange / moving medium (gas or liquid). The shape of the surface of the heat collecting tube 5 which is in contact with the focal line 4 is an arc shape in which the focal length of the cylindrical lens 3 is a radius. Corresponding to the position of the focal line 4 which varies with position, the face of the heat collecting tube 5 can coincide with the focal line 4 which varies.

 When the cylindrical lens 3 and the long heat collecting tube 5 are combined to coincide with the focal line 4 at the focal line 4 (FIG. 1), low-density solar energy incident on the surface of the cylindrical lens 3 in parallel Is converted into high-density solar energy at the focal line 4, and this high-density solar energy is converted into solar heat at the surface of the heat collecting tube 5. The collecting tube 5 collects this solar heat, and the collected solar heat exchanges solar heat flowing through the inside of the collecting tube 5 while heating the gas (air) around the collecting tube 3. A mobile medium (gas or liquid) Move constantly). In this way, the structure in which one cylindrical lens and one heat collecting tube 5 are combined is one solar heat acquiring device (FIG. 1). The heat of the heated gas (air) outside the collection pipe 5 may be used separately or in combination with the heat of solar heat flowing through the interior of the collection pipe 5. Solar thermal acquisition device (FIG. 1) can be scaled by connecting several in series or in parallel. Exchange of solar heat flowing through the inside of the heat collecting pipe 5. When the flow velocity of the moving medium is kept constant, when connected in series, higher heat energy can be obtained. Since it can be obtained by doubling the thermal energy, the flow rate can be controlled to increase or decrease the temperature and heat quantity. The solar heat acquiring device using the heat collecting pipe 5 (FIG. 1) exchanges solar heat. As the moving medium moves inside the long heat collecting pipe 5, the temperature gradually increases, so the temperature is higher at the outlet than at the inlet, and the solar heat is obtained. When several devices (Fig. 1) are connected in series, the temperature is higher at the outlet of the last solar collector than at the outlet of the first solar collector.

Thus, the solar heat acquiring apparatus (FIG. 1) comprised by the cylindrical lance 3 and the heat collecting pipe 5,

1. As mentioned above, by developing an easy-to-use method of converting low-density energy of the sun into high-density energy to obtain a large amount of high-temperature solar heat, it is possible to quickly and efficiently acquire and utilize infinite solar energy without causing pollution. Become,

2, in all industrial facilities and residential or non-residential buildings that require thermal energy can be used inexpensively using high-temperature solar heat according to the present invention as an alternative means or auxiliary means of the existing heat acquisition means,

3. By connecting several solar power acquisition devices (Fig. 1) in series or in parallel, it is possible to obtain the economical effect of supplying a large amount of inexpensive thermal energy by constructing a large scale complex of solar power acquisition facilities.

Claims (4)

A cylindrical lens (3) having a characteristic of converging parallel-injected low-density solar energy to form a focal line (4) and converging and converting it into high-density solar energy; and this cylindrical lens (3) When the high-density solar energy generated in the focal line (4) of the) is converted into solar heat, an arc shape designed to collect the solar heat and exchange the collected solar heat and flow through the inside of the tube (gas or liquid) A method of acquiring solar heat by combining a collecting pipe (5) of a rectangular shape corresponding to the length of the focal line (4) at the position of the focal line (4). The method of claim 1, The solar incident surface of the cylindrical lens (3) is a plane or arc shape which is close to a plane, The method characterized by the above-mentioned. The method of claim 1, The shape of the surface of the heat collecting tube 5 in contact with the focal line 4 of the cylindrical lens 3 is characterized by an arc shape having a radius of focal length of the cylindrical lens 3. How to. The method of claim 1, A method of acquiring a high temperature or a large amount of solar heat by connecting a plurality of solar heat acquisition devices (FIG. 1) in which a cylindrical lens (3) and an arc-shaped heat collecting pipe (5) are connected by a series connection method or a parallel connection method.

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