JPH0628268U - Solar thermal power generator - Google Patents

Abstract

(57) [Abstract] [Purpose] The purpose is to create a complex electrical control device or machine for maintaining a solar thermal power generation device, regardless of geographical conditions such as sea, mountains, and rivers. An object of the present invention is to provide a device that supplies electric power by using natural energy while minimizing the labor of human beings without using a specific operating mechanism. In order to achieve the above object, in a power generator using solar heat, a check valve (2a) is provided in a water supply pipe (2) for supplying water to a heat collector (1), and the heat collection is performed. A power generation part (4) is provided between the intake / exhaust pipe (3) on the upper part of the vessel (1) and the heat exhaust part (7) arranged on the bottom part (1b) of the heat collector, and further on the suction pipe (5). The check valve (5a) and the discharge pipe (6) are connected to the check valve (6
A solar thermal power generation device characterized in that a) is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a simplified power generation device using solar heat in an area of a developing country where there is no electric equipment, or in a place where a temporary power generation equipment is needed.

[0002]

[Prior art]

 A solar seawater desalination power generation system (actually, the seawater is heated by the solar heat receiver, and the steam of the heated seawater is provided with an evaporator that communicates with the steam turbine and a vacuum pump that removes the air in the condenser. There is a Japanese Laid-Open Patent Publication No. 62-31704).

In the above-mentioned solar thermal seawater desalination power generation device, the height of the condenser must be higher than the height of the water level in the fresh water tank to match the vacuum head, and the internal pressure of the evaporator must be lower than atmospheric pressure. It is necessary to set the height of the bottom part higher than the water level of the concentrated seawater tank, and the top part height must be higher than the water level of the condenser. There are drawbacks that are limited.

[0006] Furthermore, water in a water tank into which sea or lake water is introduced is heated and evaporated by solar heat, and the evaporated water vapor is used to generate electric power by utilizing the pressure of the water vapor. There is a high-altitude desalination method using solar heat and a power generation method (Japanese Patent Laid-Open No. 3-262586).

In the above high-altitude water desalination and power generation method using solar heat, water in a water tank into which seawater, lake, or river water is introduced is heated and evaporated by solar heat, and the steam is used to generate power. It is a product that obtains distilled water and electric power by being led to and cooled. Therefore, it is limited to places with seawater, lakes, and rivers, and high places such as mountains are required to obtain distilled water, which is good in areas with many mountains and rivers such as Japan, but technological development is behind. It had the drawback of not being suitable for undeveloped areas such as developing countries, desert areas, and dense forest areas such as the Amazon.

[0006] Conventional technology is limited to the above two publications, and in other cases, research and development of solar collectors are actively carried out in various ways under the sunshine plan of the Ministry of International Trade and Industry, which was promoted on a national scale. Although there are many examples, especially for cooling, heating, and hot water supply systems, the situation is becoming more active, but on the other hand, there were problems such as complicated maintenance.

In order to increase power generation, it is important to first locate the plant at a point where the amount of direct solar radiation is abundant, and the annual amount of direct solar radiation in Nio Town, Kagawa Prefecture is approximately 1000 KWh / m. ² , and in some areas of the United States, Australia, and developing countries, there is an annual amount of solar radiation of 2500 KWh / m ² , which is about 2.5 times that of Japan (renewable energy use by Power Company). For the power generators used in these areas for the sake of science, the development of the generators that are simpler and easier to handle than high technology has not yet been fully completed.

[0008]

[Problems to be solved by the device]

 The present invention has been made in view of the above problems of the conventional technology, and its purpose is not to be influenced by geographical conditions such as the sea, mountains, rivers, etc. A device that supplies electric power by using natural energy with a minimum human effort without using complicated electric control devices or mechanical operating mechanisms for maintaining To provide.

[0009]

[Means for solving the problem]

 In order to achieve the above object, in a power generator using solar heat, a check valve (2a) is provided in a water supply pipe (2) for supplying water to the heat collector (1), and the heat collector (1) is provided. ) Is provided between the intake / exhaust pipe (3) and the heat exhausting part (7) arranged in the bottom part (1b) of the heat collector, and the power generating part (4) is provided, and the intake pipe (5) is reversely connected. A solar thermal power generator characterized in that a stop valve (5a) and a discharge valve (6) are provided with a check valve (6a).

[0010]

[Action]

 The operation of the solar thermal power generation device having the above configuration will be described below. The heat collector (1) of the main body is metallic and has a black coating, and contains liquids such as seawater and freshwater. The temperature of the liquid rises due to solar heat and becomes water vapor. , When the internal pressure of the heat collector (1) rises, it passes through the intake / exhaust pipe (3) and rotates the fan of the generator in the power generation part (4), and further the bottom part of the heat collector (1) of the main body. The heat emitted from the heat removal part (7) arranged in (1b) heats the bottom surface part (1b) of the heat collector (1), and the air that has passed through the heat removal part (7). Will be released to the outside through the discharge pipe (7a).

At night, the black-painted heat collector (1) absorbs solar energy and its temperature rises, but the black-painted one has a characteristic that it also has a large heat dissipation effect. Since it has, it has the characteristic that when the sun goes down, the temperature of the heat collector (1) drops due to a rapid heat dissipation effect, and the atmospheric pressure inside the heat collector (1) also drops sharply. At night during use, the outside air flowing in through the suction pipe (5) rotates the fan of the generator in the power generation section (4) to generate electricity, and passes through the suction and discharge pipe (3) to the heat collector (1). The outside air will flow in.

When a liquid such as seawater or freshwater is reduced in the heat collector (1) due to evaporation, the throttle valve (3a) attached to the intake / exhaust pipe (3) is closed to remove the seawater or freshwater. A liquid such as the above will flow in from the water supply pipe (2), pass through the check valve (2a) and flow into the inside of the heat collector (1).

[0013]

【Example】

 Hereinafter, preferred embodiments of the present invention will be illustratively described in detail with reference to the drawings. However, unless otherwise specified, the dimensions, materials, shapes, relative positions, etc. of the components described in this embodiment are intended to limit the scope of the present invention to only those components. Not just an example of explanation. This solar thermal power generator can be modified in various ways within the scope of the utility model registration claim.

The heat collector (1), which is the main body of the present invention, has at least one side of about 100 m and has an area of about 10,000 products. The material is metal and the surface is black. The black coating absorbs at a solar energy absorption rate of approximately 95% (the amount of absorbed solar energy divided by the amount of incident solar energy).

The heat collector (1) of the main body is made of metal and has a black coating, and contains liquids such as seawater and fresh water inside. When the internal pressure of the heat collector (1) rises, it passes through the intake / exhaust pipe (3) and is connected to the power generation section (4) to rotate the fan of the generator to generate electric power.

The AC power generated by this generator is supplied, but it is also preferable to adopt the floating charging method, which is a method of charging a battery with a rectifier installed in parallel with the AC power. This is an example of a device that supplies AC power from a battery via an inverter when the power is insufficient.

After rotating the fan of the generator of the power generation unit (4), water vapor does not flow toward the suction pipe (5) due to the check valve (5a), and flows into the discharge pipe (6). It flows through the inlet check valve (6a) toward the heat exhausting part (7), and exits from the heat exhausting part (7) arranged on the bottom surface part (1b) of the heat collector (1) of the main body. The generated heat heats the bottom part (1b) of the heat collector (1), and the air passing through the heat exhausting part (7) is discharged to the outside from the exhaust pipe (7a).

At night, the heat collector (1) is rapidly cooled, so that the internal pressure of the heat collector (1) is reduced, and the outside air starts to flow in through the suction pipe (5), so that the non-return It flows to the valve (5a) and the discharge pipe (6) does not flow because there is a check valve (6a), so it does not flow, it passes through the power generation part (4) and the fan of the generator is rotated to generate electricity It will flow through the pipe (3) and into the heat collector (1).

When the liquid such as seawater or fresh water in the collector (1) is reduced and water needs to be injected, when the atmospheric pressure inside the collector (1) at night decreases, When the throttle valve (3a) attached to 3) is closed, it passes through the check valve (2a) from the water storage tank (8) or the water supply pipe (2) in the water surface to the inside of the heat collector (1), You can pour water.

[0020]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. According to Japanese Utility Model Publication No. 62-31704, a part of the power generator such as the solar thermal seawater desalination power generator could be used only in a place having a height difference, but in the present proposal, In addition, it is a circulation system using natural energy without using complicated evaporators, condensers, vacuum pumps, etc., and the device for maintaining the device is also simple. It is something I had.

According to Japanese Patent Laid-Open No. 3-262586, the method of high-altitude water desalination and power generation using solar heat is a place where there are seas, lakes, and rivers, and high positions such as mountains are required. However, in the present invention, the places such as mountains, seas, rivers, etc. are not limited, and the rainforest climate on the earth, tropical mons It has the characteristic of exerting its effect in regions with a climatic climate and a savanna climate.

Even in the case of the large-scale solar power generation system of the present invention, one person is enough to maintain the system, and natural energy can be used regardless of the surrounding environment and geographical conditions. By simplifying and simplifying the equipment, it has become possible to minimize human labor.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

[Explanation of symbols]

 1 ... Heat collector 1a ... Surface part 1b ... Bottom part 2 ... Water supply pipe 2a ... Check valve 3 ... Intake / exhaust pipe 3a ... Throttle valve 4 ... Power generation part 5 ... Intake pipe 5a ... Check valve 6 ... Discharge pipe 6a ... Check valve 7 ... Heat exhaust part 7a ... Discharge pipe 8 ... Water tank

Claims (1)

[Scope of utility model registration request] 1. A check valve (2) for a water supply pipe (2) for supplying water to a heat collector (1) in a power generator using solar heat.
a) is provided, and an intake / exhaust pipe (3) is provided above the heat collector (1).
And a heat generating part (7) arranged at the bottom part (1b) of the heat collector, a power generating part (4) is provided, and a check valve (5a) and a discharge pipe (6) are further provided in the suction pipe (5). A solar thermal power generator characterized in that a check valve (6a) is provided in the.