JP2010000494A - Seawater desalination apparatus utilizing solar light and heat and accompanying salt manufacturing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that almost all conventional seawater desalination apparatuses require huge equipment such as an osmotic membrane and a pressurization system and vast electric power consumption and consequently economic burden and environmental load are large. <P>SOLUTION: This seawater desalination apparatus is simple and utilizes infinitely pouring solar light and heat. Thus the apparatus is primitive but is economical because of very small electric power consumption and is good for the natural environment. Further fresh water can be obtained for a long period of time and in addition salt can also be refined as a by-product. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

Detailed Description of the Invention

  The present invention relates to a manufacturing method for efficiently desalinating seawater and incidentally purifying salt by utilizing solar heat that is poured into the earth infinitely without requiring a large-scale device such as large power consumption or pressurization.

  Conventional seawater desalination devices use many osmotic membranes and many complicated devices such as pressurization, all of which require enormous electrical energy.

Problems to be solved by the invention

  Conventional seawater desalination mostly requires enormous power consumption due to large equipment, and as a result, it has many problems of generating CO2 which is a problem in order to secure absolutely necessary drinking water. Large-scale equipment has a large economic burden and a heavy environmental burden, and it has been demanded to reduce the investment cost, to make it cheaper and to be friendly to the earth.

  The present invention effectively uses solar heat that is poured indefinitely while suppressing the suppression of exhaust gas and the destruction of the environment caused by the heavy consumption of electricity, which is the world's most problematic, while coexisting with nature. It is an apparatus for the purpose of providing a method for continuously producing fresh water with a low cost and a low cost.

Means for solving the problem

  In order to achieve the above object, the present invention increases the heat absorption of the panel covering the evaporating tank in order to use only infinite solar heat light without using forced processing that causes enormous power consumption due to a large-scale apparatus. Therefore, by using a black material that has good heat conduction efficiency and is resistant to aging, the temperature inside the evaporation device is extremely increased and the evaporation is promoted. The inclination of each panel of A, B, C, and D is 60 degrees to It is kept at about 80 degrees, and the evaporating water droplets are quickly transferred along the steep slopes of the panel back sides a, b, c, d and efficiently poured into the water collecting tank provided at the bottom, making it easy to make fresh water.

  In addition, the water collecting ridges provided on the surfaces a, b, c, and d are respectively inclined to the left and descending toward the left end with the right end of the a ridge being the highest position, and the highest position at the right end of the b, ridge. Similarly, the fresh water collected through the eaves with the left end of d 樋 lowered to the lowest position while being tilted to the left with c and d is stored in a tank through a pipe.

  In addition, since the amount of water collected by this evaporator alone is small, a plurality of evaporators of the same type are installed in parallel according to the required amount of water. It is sucked up from the sea by a pump and supplied from the water supply port of each evaporative seawater tank.

  In addition, the evaporating seawater tanks evaporate and the salt concentration of the seawater increases and evaporating efficiency decreases after a certain time, so the water is sucked up by the pump from the drainage port of each tank. Evaporation is prepared.

  The high-concentration seawater aspirated from each tank is poured into a separate aeration pool through pipes and directly exposed to sunlight to expedite evaporation and accelerate salt refining efficiently. it can.

  Areas where water is scarce on the earth have generally little rainfall, so there are many sunny days per year and they are exposed to scorching solar heat, and these areas are generally not economically blessed and have significant capital investment. Installation of equipment is not so much expected, this device is indispensable drinking water without incurring running costs using infinite solar heat without requiring much installation cost and large power consumption in such areas To provide a supply of

Embodiments of the invention will be described with reference to the drawings.
In FIG. 1, first, A, B, C, and D panels are combined into a dormitory shape so as to cover the evaporating water tank in the shape of a basic evaporator as viewed from above. In the embodiment shown in FIG. 2, the A, B, C, and D panels of the evaporator are viewed from the front, and are viewed from the inside, and are shown in FIG. , D The inner surface of the panel is a, b, c, d respectively. First, the water collecting basin is provided with a gentle slope from the right end to the left end of the inner panel a, and the evaporated water droplets accumulated on the panel have a steep slope. Collect the fallen things and pass it to the right end of b, and the evaporated water droplets on the b panel will also flow to the left end due to a gentle inclination. Similarly, it will be passed to c and d 樋 and led to the outside from the left end of d by a pipe. Stored in the tank.

    The above is an embodiment of a single evaporation device, but the amount of water collected by this single device is limited, so when the desired amount of water is large, a plurality of single devices are arranged in parallel. FIG. 4 shows three evaporation devices as an example. The seawater sucked up by the two suction pumps from one seawater suction port, which indicates what is arranged, is supplied from the three distribution pumps to the evaporation seawater tank from the distribution port 5 in each of the four evaporators. After a certain period of time, the water that has evaporated to a high concentration is sucked up by the concentrated seawater suction pump 7 from the drain outlet of each device 6 and sent to the aeration pool 9 by the delivery pump 8 for sunlight and outside air. The fresh water produced by each evaporator is stored in 11 fresh water tanks by pipes from 10 fresh water outlets and can be taken out from 12 outlets at any time.

  It is the figure which looked at the evaporation apparatus from the upper part.   It is the side view which looked at the evaporation apparatus toward the front of each panel of A, B, C, D.   It is the side view which looked at the evaporation apparatus from the front toward panel inner side a, b, c, d from the inside.   It is drawing which shows embodiment at the time of arranging three evaporators single-piece | unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seawater suction port 2 Seawater suction port pump 3 Distribution pump 4 Evaporator 5 Distribution port 6 Drainage port 7 Concentrated seawater suction pump 8 Delivery pump 9 Aeration pool 10 Fresh water intake 11 Fresh water tank 12 Outlet

Claims (1)

  In order to use solar heat, cover four panels A, B, C, and D with a canopy constructed in a shallow evaporating seawater basin, and the panel conducts heat in black to enhance solar heat absorption efficiency. By using a good and durable material, the temperature inside the device is increased and the temperature of the water in the seawater tank is increased, thereby promoting evaporation. The evaporated water droplets adhere to each panel back surface a, b, c, d. Each of the inner panels a, b. Small ridges for collecting evaporating water droplets are provided on the lower sides of c and d, respectively, with a slanting slant to the left. The water droplets on panel b are also added to this. In this way, the height of each ridge is adjusted in advance so that the water droplets of c and d are collected in sequence. Since the gentle slope is kept to the left end of the lowest d-panel 樋, distilled water collected at the lowest part of the d-panel 取 り 出 し can be taken out and stored in the tank. However, the amount of water collected by this evaporator alone If the desired amount of water to be collected is limited, the same type of evaporator is operated in parallel according to the amount of water, and the evaporated water from each device is collected by pipes and stored in a tank. Evaporation of each device Seawater in the tank is pumped up from the sea by a pump and supplied from the distribution port of each device. After a certain period of time, the evaporation efficiency decreases as the salinity of the seawater in the evaporation tank increases with evaporation. Therefore, the concentrated seawater is sucked up by pumps from the drains of each device and poured into an aeration pool provided separately, and since the salt concentration is increased by the evaporator, it is directly exposed to sunlight heat and wind of the outside air This is a device that can purify salt efficiently in conjunction with a seawater desalination device using only solar heat having the above-described performance.

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