JP2010269296A - Solar heat distillation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solar heat distillation apparatus which is capable of producing drinking water easily from sewage (water not suitable for drinking) in regions close to the equator, keeps the constitution as simple as possible so that the necessity of maintenance is extremely low, has a low production cost, and can be moved readily. <P>SOLUTION: The solar heat distillation apparatus includes: a concave-shaped reflection mirror arranged on a supporting base facing almost upward; an evaporation part provided in the focal position of the reflection mirror; a raw water tank attachably/detachably supported at a position higher than the evaporation part; a water supply pipe connecting the raw water tank and the evaporation part; a water receiving tank attachably/detachably arranged at a position lower than the evaporation part; and a condensation tube connecting the water receiving tank and the evaporation part. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a simple solar distillation apparatus that is inexpensive to manufacture and easy to handle.

  Up to now, many distillation apparatuses using solar heat have been proposed, but none of them has a complicated structure and a high manufacturing cost, and none of them is portable.

  For example, in Patent Document 1, a reflector formed with a concave surface as a sunlight reflecting surface and concentrating the reflected light of sunlight in the vicinity of the focal point is formed on a vertical axis in a support portion formed below the reflector. And a heating target that is rotatably supported around a horizontal axis and that extends from the support portion toward the focal point and receives the reflected sunlight from the tip of the arm member. A solar-heated heating device is disclosed, which is characterized in that is disposed. In this technique, the reflecting surface of the reflector is formed into a spherical concave surface or a cylindrical concave surface when viewed from the side surface, and assumes an open container such as a pan as a heating target by solar heat, for the purpose of cooking rather than generating purified water. Yes. Moreover, the structure provided with the tank assumes the hot water supply system. Further, it is also disclosed that the reflector is rotatably supported around the vertical axis and the horizontal axis at the support portion, and the elevation angle and the plane angle are controlled by tracking the sun by a motor or the like. However, in this technique, since the reflector is formed on a spherical surface or a cylindrical concave surface, the focal length becomes long and the apparatus becomes large. In addition, a motor or the like is required to control the reflector, and a water pressure generating mechanism is required to use the reflector as a hot water supply system. Accordingly, there is a problem that not only the configuration is complicated and the maintenance becomes difficult, but also the manufacturing cost becomes expensive.

  On the other hand, Patent Document 2 discloses a plurality of reflecting portions that reflect sunlight, a heat collecting portion that heats water by receiving the heat of sunlight reflected by the reflecting portion, and an evaporation portion that evaporates heated water. And a condensing part that condenses evaporated water vapor to generate fresh water, and a driving part that drives the reflecting part based on the movement of the sun and reflects sunlight toward the heat collecting part, A plurality of reflecting portions are arranged at a predetermined interval, and a light shielding region formed by the plurality of reflecting portions and an irradiation region for irradiating sunlight that has passed the predetermined interval are formed on the ground. A solar heat collecting device is disclosed. This apparatus is an installation-type large-sized apparatus, and aims to obtain a large amount of fresh water from seawater by a plurality of reflecting portions. The reflecting mirror is formed in a parabolic shape, and is formed so as to collect sunlight at the parabolic focus. The condensing unit is composed of a container into which water vapor is introduced from the evaporating unit, and a cooling pipe that guides water cooled in the evaporating part is disposed in the container, and the water vapor cooled by the cooling pipe condenses and becomes fresh water. It becomes the composition which becomes. Therefore, a cooling pipe is required in the condensing part, and cooling water passing there is also required.

JP-A-6-300363 JP 2006-125700 A

  This invention is made | formed in view of the above-mentioned problem, and it aims at enabling it to produce | generate drinking water easily from sewage (water which is not suitable for drinking) in the area near an equator. Accordingly, it is an object of the present invention to provide a solar distillation apparatus that is as simple as possible and that requires as little maintenance as possible, that is inexpensive to manufacture and that can be moved easily.

  In order to solve the above-described problems, in the solar distillation apparatus according to the present invention, a concave reflecting mirror disposed substantially upward on a support base, an evaporation section provided at a focal position of the reflecting mirror, and the evaporation section A raw water tank detachably held at a higher position, a water supply pipe connecting the raw water tank and the evaporation section, a water receiving tank detachably disposed at a position lower than the evaporation section, and It is characterized by comprising a water receiving tank and a condensing pipe connecting the evaporating section.

  The reflecting mirror is preferably a paraboloid, and may be configured to be supported so as to be rotatable in a uniaxial direction.

  In addition, it is preferable that a plastic bottle for a commercial beverage can be used as the raw water tank and the water receiving tank. It is more effective if the raw water tank is held with the opening of the plastic bottle facing down, and the water receiving tank is placed with the opening of the plastic bottle facing up.

  Furthermore, the said condensation pipe | tube can also be provided with the condensation part which contacts the said water supply pipe | tube partially and condenses the vapor which evaporated.

  In the solar distillation apparatus according to the present invention, it is possible to effectively capture sunlight without rotating the reflecting mirror by arranging the reflecting mirror almost upwardly assuming that it is used near the equator. it can. In addition, by placing the raw water tank at a position higher than the evaporation section and placing the water receiving tank at a position lower than the evaporation section, water can be naturally supplied to the evaporation section by the gravity of the raw water. Since plastic bottles for commercial beverages can be used as the tanks, it is easy to obtain and can be procured at low cost. Furthermore, since the solar distillation apparatus according to the present invention has a simple overall configuration, it can be configured compactly, and it is extremely easy to disassemble or assemble. The simplicity of the configuration is useful because it is easy to maintain when used in developing countries near the equator, for example.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows the overall configuration of an embodiment of a solar distillation apparatus according to the present invention. On the base 11, the reflecting mirror support 1 and the tank holding part 12 are installed. On the reflecting mirror support 1, a reflecting mirror 2 formed so that its inner surface becomes a paraboloid is supported substantially upward, and an evaporation section 3 is provided at a portion corresponding to the focal point. The evaporation unit 3 is a sealed container, and is installed so that the bottom surface is exactly the focal point of the reflector 2 paraboloid.

  On the other hand, the tank holding portion 12 holds the water receiving tank 7 and the raw water tank 4 so that the respective openings face each other. As these tanks, plastic bottles such as 1 liter and 1.5 liter for commercial beverages can be used. Since such a plastic bottle has a screw formed in the opening, it is sealed using sealing caps 9 and 10. A water supply pipe 5 is connected to the raw water tank cap 9, and its opposite end is connected to the evaporation section 3. On the other hand, the condenser pipe 6 is connected to the water receiving tank cap 10, and the opposite end thereof is also connected to the evaporator 3. Further, the condensing pipe 6 is provided with a condensing part 8 configured to come into contact with the water supply pipe 5 in the middle, and the evaporated water vapor can be condensed into water in this part.

  When this distillation apparatus is used, the raw water tank cap 9 is loosened, the raw water tank 4 is removed, and water that is not suitable for drinking is filled, and then the raw water tank cap 9 is tightened again and installed in the tank holder 12. This raw water reaches the evaporation section 3 through the water supply pipe 5 due to its own weight, and is heated by sunlight to evaporate. The evaporated water vapor passes through the condensing pipe 6 to reach the condensing unit 8, is cooled at the wall in contact with the water supply pipe 5, becomes water, and is collected in the water receiving tank 7. Since the water receiving tank is also sealed with the cap 10, if the cap 10 is loosened, it can be easily replaced with another empty bottle.

  The reflecting mirror 2 can reflect sunlight for a long time in the vicinity of the equator by taking a certain degree of curvature, but if necessary, it can be rotated in one axial direction using simple natural power such as a spring. By moving it, it is possible to further improve the light collection efficiency.

  Plastic bottles for commercially available beverages are used for the water receiving tank 7 and the raw water tank 4. However, if the water flow is not smooth, it can be improved by opening a hole for venting as necessary.

  When muddy water or the like is used as the raw water, it is necessary to provide the cap 9 or the water supply pipe 5 with a filtration mechanism such as a filter. Further, by configuring the evaporation unit 3 to be removable, cleaning and cleaning can be facilitated.

  Of course, it is possible to form the reflecting mirror 2 as an integral material. However, since the cost may increase, for example, a corrugated cardboard or a polystyrene foam made of a parabolic surface, and an aluminum foil on the base material. It is also possible to make a reflecting mirror by laying them.

  Since the solar distillation apparatus according to the present invention has a simple overall configuration, it can be made compact, and it is extremely easy to disassemble or carry. The simplicity of the configuration is useful because it is easy to maintain when used in developing countries near the equator, for example.

It is a front view of the solar distillation apparatus by this invention.

DESCRIPTION OF SYMBOLS 1 Reflector support stand 2 Reflector 3 Evaporating part 4 Raw water tank 5 Water supply pipe 6 Condensation pipe 7 Receiving tank 8 Condensing part 9 Raw water tank cap 10 Receiving tank cap 11 Base 12 Tank holding part

Claims (6)

A concave reflecting mirror disposed substantially upward on the support base, an evaporation section provided at a focal position of the reflecting mirror, and a raw water tank removably held at a position higher than the evaporation section, A water supply pipe connecting the raw water tank and the evaporation section, a water receiving tank detachably disposed at a position lower than the evaporation section, and a condensation pipe connecting the water receiving tank and the evaporation section A solar distillation apparatus characterized by comprising: 2. The solar thermal distillation apparatus according to claim 1, wherein the reflecting mirror is a parabolic surface. The solar distillation apparatus according to claim 1 or 2, wherein the reflecting mirror is supported so as to be rotatable in a uniaxial direction. 4. The solar distillation apparatus according to claim 1, wherein the raw water tank and the water receiving tank are plastic bottles for commercial beverages. 5. The solar distillation apparatus according to claim 4, wherein the raw water tank is held with the opening of the plastic bottle facing down, and the water receiving tank is disposed with the opening of the plastic bottle facing up. The solar distillation apparatus according to any one of claims 1 to 5, wherein the condensing pipe is provided with a condensing portion that partially contacts the water supply pipe and condenses evaporated water vapor.

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