JP3168665U - Solar light receiving surface circulation processing equipment - Google Patents

Abstract

An object of the present invention is to provide a solar light receiving surface circulation processing device and a solar light receiving system capable of performing processes such as cooling, washing, and snow melting on a light receiving surface portion of a solar cell device or the like while circulating water. A water supply unit for supplying water to a light receiving surface of a solar cell device, a water receiving unit for receiving water and accompanying substances supplied to the light receiving surface and flowing down, and a water receiving unit. A transfer unit 18 for transferring to the water storage tank 20; a water storage tank 20 having a receiving tank 20a and a water supply tank 20b for receiving and storing water and accompanying substances; A water supply unit 32 for supplying water to the supply unit 14 is provided. The receiving tank 20a is provided with a strainer 22 for removing relatively large solid accompanying substances from the received water and accompanying substances. A decomposition / purification unit 26 for decomposing / purifying pollutants by microorganisms is provided below the water supply tank 20b. [Selection diagram] Fig. 1

Description

  The present invention relates to a solar light receiving surface portion circulation processing device, a solar light receiving surface portion circulation processing device, and a solar light receiving system including an apparatus including a light receiving surface portion to be processed by the device.

  In JP-A-10-308523, a solar cell device capable of cooling and cleaning a light receiving surface of a solar cell device is described as “a solar cell device composed of a plurality of solar cell elements, There is disclosed a solar cell device comprising cleaning means for supplying a fluid to a light receiving surface of a solar cell in accordance with the operation of a bypass circuit.

  Power generation using solar cells is becoming more and more important because it can serve as a backup in times of disaster and contribute to the public in the event of power shortages, but the power generation efficiency of solar cells is more than a certain temperature. If the light receiving surface portion becomes dirty, or the light receiving surface portion is covered with snow, it will decrease.

  Therefore, conventionally, proposals have been made to cool, wash, or melt snow the light-receiving surface portion of the solar cell with water.

  However, the water itself used for them is a valuable resource, and its importance is greatly increased especially during a disaster, so it is desirable to use water efficiently.

JP-A-10-308523

  The present invention has been made in view of the above-described problems existing in the prior art, and the object of the present invention is to treat the light receiving surface portion of a solar cell device or the like while circulating water, for example, cooling, An object of the present invention is to provide a solar light receiving surface portion circulation processing device and a solar light receiving system capable of performing processing such as cleaning and melting snow.

(1) The solar light receiving surface circulation processing device of the present invention that achieves the above object is
A water supply unit for supplying water to the light receiving surface portion of the device having a light receiving surface portion for receiving sunlight;
At least a water receiving part that receives the water, rainwater or snowmelt water supplied from the water supply part to the light receiving surface part, and the accompanying water, and
A transfer unit that transfers at least water among those received by the water receiving unit; and
A water storage tank that receives and stores at least the water transferred by the transfer unit;
A purification section for purifying water containing accompanying substances;
A water supply unit for supplying water stored in the water storage tank to the water supply unit;
The processing for the light receiving surface portion is performed while circulating water between the light receiving surface portion of the device having a light receiving surface portion for receiving sunlight and a water storage tank,
The water supplied to the water supply unit by the water supply unit is water that has been purified by the purification unit.

  Moreover, the sunlight receiving system of this invention has the apparatus provided with the said light-receiving surface part circulation processing apparatus and the light-receiving surface part processed by the apparatus.

  By operating the water supply unit in a state where water is stored in the water tank, the water stored in the water tank is supplied to the water supply unit, and the light reception of the device including the light receiving surface part for receiving sunlight is received. Water can be supplied to the surface portion.

  At least the water, rainwater or snowmelt water supplied from the water supply unit to the light-receiving surface portion and the accompanying substances are received by the water receiving unit, and the transfer unit receives at least water of the water received by the water receiving unit. Transport.

  The water storage tank receives and stores at least the water transferred by the transfer unit.

  The water containing accompanying substances is purified by the purification unit. Since the water supplied to the water supply unit by the water supply unit is water that has been purified by the purification unit, it is possible to prevent inconvenience such as clogging in the water supply unit due to the accompanying water.

  Therefore, by operating the water supply unit as necessary, processing on the light receiving surface portion while circulating water between the light receiving surface portion of the device having the light receiving surface portion for receiving sunlight and the water tank, for example, Processing such as cooling, washing, and melting snow can be performed. In addition, emergency water is stored in the water tank.

  (2) In the solar light receiving surface circulation processing device of the present invention, the purification unit performs filtration, precipitation, and decomposition / purification of pollutants by microorganisms with respect to water containing accompanying substances. Can do.

  (3) In the solar light receiving surface circulation processing device of the present invention, the transfer unit transfers water and accompanying substances received by the water receiving unit to the water storage tank, and purifies the water storage tank during storage. It is possible to provide a purifying unit that performs the above.

  Since the water received by the water receiving unit and the accompanying substances are received in the water storage tank and purified in the purification unit while being stored in the water storage tank, the water receiving unit is suitable for long-term water storage in the water storage tank.

This water tank is a receiving tank that receives the water and accompanying substances transferred by the transfer section and performs filtration and precipitation on them, and the water treated in the receiving tank is supplied to decompose and purify pollutants by microorganisms. A water tank for processing is provided as a purification section,
The water supply part may supply water from the water supply tank to the water supply part.

  In this case, in the receiving tank that receives the water and accompanying substances received by the water receiving section, filtration and precipitation treatment are performed on them, and the water processed in the receiving tank is supplied to the water supply tank to decompose and decompose pollutants by microorganisms. Since the water supply section is for supplying the water from the water supply tank to the water supply section, it is suitable for long-term water storage and effective purification in the water storage tank. The occurrence of clogging is effectively prevented.

  (4) The solar light receiving surface circulation processing device of the present invention is a water amount detection unit that detects the amount of water in a predetermined part in the water tank, and supplies water from a water supply source according to the amount of water detected by the water amount detection unit. It is possible to have a replenishment section to do.

  Since it has a water amount detection unit that detects the amount of water in a predetermined part in the water tank and a replenishment unit that replenishes water from the water supply source according to the amount of water detected by the water amount detection unit, the water supply unit supplies water to the water supply unit Thus, it is possible to prevent a shortage of water for supplying water to the light receiving surface portion.

  (5) The solar light receiving surface circulation processing device of the present invention is such that the light receiving surface portion of the device having the light receiving surface portion for receiving sunlight is arranged along a predetermined inclined surface, and the light receiving surface portion The water supply unit may be disposed at an upper position, and the water reception unit may be disposed at a lower position of the light receiving surface portion.

  A light receiving surface portion of a device having a light receiving surface portion for receiving sunlight is disposed along a predetermined inclined surface, a water supply portion is disposed above the light receiving surface portion, and a position below the light receiving surface portion. Since the water receiving part is disposed in the water receiving part, water is supplied to the light receiving surface part by operating the water feeding part and feeding water stored in the water storage tank to the water supply part. The water, rain water, or snowmelt water that has been supplied to the light receiving surface portion from the water and the accompanying water can be received at the water receiving portion.

  Therefore, processing such as cooling, washing, snow melting and the like is effective for circulating the water between the light receiving surface portion of the apparatus having the light receiving surface portion for receiving sunlight and the water storage tank. Can be done.

  (6) In the solar light receiving surface portion circulation processing device of the present invention, the device provided with the light receiving surface portion for receiving sunlight may be a solar cell device including a solar cell. .

In this case, it has a temperature detection unit that directly or indirectly detects the temperature of the solar cell,
The water supply unit supplies water from the water supply unit to the light receiving surface unit by supplying water stored in the water storage tank to the water supply unit according to the temperature of the solar cell detected by the temperature detection unit. The battery can be cooled.

  It has a temperature detection unit that directly or indirectly detects the temperature of the solar cell, and the water supply unit supplies the water stored in the water storage tank to the water supply unit according to the temperature of the solar cell detected by the temperature detection unit. As a result, water is supplied from the water supply unit to the light receiving surface portion to cool the solar cell, so that it is possible to effectively prevent the temperature of the solar cell from rising and its power generation efficiency from decreasing.

(7) The solar light receiving surface part circulation processing device of the present invention has a dirt detection part for detecting dirt on the light receiving surface part,
The water supply unit supplies water from the water supply unit to the light receiving surface unit by supplying water stored in the water storage tank to the water supply unit in response to the contamination of the light receiving surface unit detected by the dirt detection unit. It is possible to clean the light receiving surface portion.

  By having a dirt detection part that detects dirt on the light receiving surface part, the water feeding part sends water stored in the water storage tank to the water supply part according to the dirt on the light receiving surface part detected by the dirt detection part. Since water is supplied from the water supply unit to the light-receiving surface portion to clean the light-receiving surface portion, dirt on the light-receiving surface portion of the device having the light-receiving surface portion for receiving sunlight is affected by the contamination of the device. It can prevent effectively that efficiency falls.

(8) The solar light receiving surface portion circulation processing device of the present invention has a snow detection unit for detecting snow accumulation or snowfall,
The water supply unit supplies water from the water supply unit to the light receiving surface unit by supplying water stored in the water storage tank to the water supply unit in response to the snow accumulation or snowfall detected by the snow detection unit. The snow on the club can be melted.

  It has a snow detection unit that detects snow accumulation or snowfall, and the water supply unit sends water stored in the water storage tank to the water supply unit in response to the snow accumulation or snowfall detected by the snow detection unit. Since water is supplied to the light receiving surface portion to melt the snow on the light receiving surface portion, the efficiency of the device is reduced by the snow on the light receiving surface portion in the device having the light receiving surface portion for receiving sunlight. It can prevent effectively that it falls.

  According to the solar light receiving surface portion circulation processing device and the solar light receiving system of the present invention, the light receiving surface portion of the device having the light receiving surface portion for receiving sunlight by operating the water supply portion as necessary While the water is circulated between the water storage tanks, the light receiving surface portion can be subjected to processing such as cooling, washing, and snow melting. Since the water supplied to the water supply unit by the water supply unit is water that has been purified by the purification unit, it is possible to prevent inconvenience such as clogging in the water supply unit due to the accompanying water.

It is a schematic diagram of a sunlight receiving system. It is a block diagram which shows the outline | summary of a control system.

  (1) An embodiment of the present invention will be described with reference to the drawings.

  The drawings all show a solar light receiving surface portion circulation processing device as an example of an embodiment of the present invention, and a solar cell device having a light receiving surface portion of a solar cell to be processed by the device. The present invention relates to a light receiving system.

  A solar cell panel 10 of the solar cell device is installed on the south-facing inclined roof R of the house along the inclined surface of the upper surface of the inclined roof R. The upper surface of the solar cell panel 10 has a rectangular shape, and almost the entire surface is a light receiving surface portion 10a. In FIG. 1, the side surface of the solar cell panel 10 appears. A large number of solar cells are evenly arranged below the light receiving surface portion 10a.

  The solar cell panel 10 has an upper part, a middle part, and a lower part respectively provided with a temperature sensor, a dirt sensor for detecting dirt on the light receiving surface part 10a with reflected light, and a snow cover sensor for detecting snow on the light receiving surface part 10a with reflected light and temperature. Are provided as a temperature detector 12a, a dirt detector 12b, and a snow detector 12c, respectively.

  A water supply unit 14 is provided along the upper edge of the solar cell panel 10. The water supply unit 14 has a tubular portion that extends in the horizontal direction (the depth direction in FIG. 1), and is provided with a large number of discharge ports at intervals in the axial direction on the light receiving surface portion 10a side. The water discharged from the discharge port is supplied to the light receiving surface portion 10a of the solar cell panel 10 and flows down on the light receiving surface portion 10a.

  Below the lower end edge of the inclined roof R located below the solar cell panel 10 in the inclination direction, a bowl-shaped water receiving portion 16 that is inclined downward toward the front in FIG. 1 is provided. The water receiving part 16 receives the water, rain water or snowmelt water supplied from the water supply part 14 to the light receiving surface part 10a and the accompanying water (animals and plants, sand containing yellow sand, etc.). .

  The transfer unit 18 has a tubular shape connecting the lowest position of the inclined bowl-shaped water receiving unit 16 and the water storage tank 20, and the water, rainwater or snowmelt water received by the water receiving unit 16, and the accompanying water thereof. An object is led to the water storage tank 20 through the vertical portion and the inclined portion.

  The water storage tank 20 includes a receiving tank 20a that receives the water transferred by the transfer unit 18 and an accompanying substance, and a water supply tank 20b that is supplied with water processed in the receiving tank 20a.

  Receiving from the transfer unit 18 is performed on the top plate portion of the receiving tank 20a and is performed through the receiving port. The front end of the transfer unit 18 is connected to the receiving port. A strainer 22 for removing a relatively large solid accompanying material from the received water and accompanying material is provided at a position below the receiving port in the upper part of the receiving tank 20a. The water that has passed through the strainer 22 is first stored in the receiving tank 20a to precipitate the accompanying sand such as yellow sand, mud particles, and the like and other sedimentable substances. At the back side of the upper side wall of the receiving tank 20a, a tip of a replenishing unit 24 for replenishing water from the water supply source to the receiving tank 20a is connected, and a water storage is provided on the front side of the upper side wall of the receiving tank 20a. A base end portion of an excess water discharge pipe 25 for discharging excess water in the tank 20 is connected. The replenishment part 24 is provided with the on-off valve 24a for controlling the start and stop of water replenishment.

  A partition wall 20c is provided between the receiving tank 20a and the water supply tank 20b except for the upper part, and water in which sand such as yellow sand or mud particles accompanying the receiving tank 20a is precipitated passes through the upper part of the partition wall 20c. Then, it is supplied to the water tank 20b. A decomposition / purification unit 26 that performs a process of decomposing / purifying pollutants by microorganisms is provided below the water tank 20b. On the lower side wall of the water tank 20b, a first water level sensor 28a that detects that the water level of the water tank 20b is equal to or lower than a predetermined limit water level, and detects that the water level of the water tank 20b is equal to or higher than a predetermined required water level. A second water level sensor 28 b is provided as the water amount detection unit 28.

  A manhole 20d having an open / close lid is provided above the receiving tank 20a and the water tank 20b, and a drain valve 20e is provided below the receiving tank 20a and the water tank 20b. Outside the side wall of the water supply tank 20b, a control panel 30 including a central processing unit and a control unit 30a including various interfaces, a power supply unit, and the like is provided.

  The water supply unit 32 includes a water supply pump 32a disposed at the lower part of the water supply tank 20b, and a tubular water supply channel 32b for supplying water from the water supply pump 32a to the water supply unit 14.

  The outputs of the temperature detector 12a, the dirt detector 12b and the snow detector 12c in the detector 12 and the output of the water amount detector 28 are input to the controller 30a. The on-off valve 24a of the replenishing unit 24 and the water supply pump 32a of the water supply unit 32 are controlled by the control unit 30a. The on-off valve 24a and the water pump 32a can be manually controlled.

  (2) When the water amount detecting unit 28 detects that the water level in the water supply tank 20b is equal to or lower than a predetermined limit water level, the control unit 30a opens the on-off valve 24a of the replenishing unit 24 to the receiving tank 20a from the water supply source. Supply water. Thereafter, when the water level in the water supply tank 20b becomes equal to or higher than a predetermined required water level, the control unit 30a closes the on-off valve 24a of the replenishing unit 24 and stops replenishment from the water supply source.

  In addition, when the temperature detected by the temperature detection unit 12a is equal to or higher than a predetermined temperature that causes a reduction in the power generation efficiency of the solar cell, the control unit 30a operates the water supply pump 32a of the water supply unit 32 from the water supply unit 14 to the sun. Water is supplied to the light receiving surface portion 10a of the battery panel 10. As a result, the solar cell is cooled to prevent as much as possible the decrease in power generation efficiency due to the temperature rise of the solar cell. When the temperature detection unit 12a detects that the temperature has decreased to a predetermined degree, the control unit 30a stops the operation of the water supply pump 32a of the water supply unit 32.

  Further, the control unit 30a operates the water supply pump 32a of the water supply unit 32 to activate the water when the contamination of the light receiving surface unit 10a detected by the contamination detection unit 12b exceeds a predetermined level that causes a decrease in power generation efficiency of the solar cell. Water is supplied from the supply unit 14 to the light receiving surface portion 10a of the solar cell panel 10. Thereby, the dirt of the light receiving surface portion 10a is washed to prevent the power generation efficiency of the solar cell from being reduced as much as possible. When the contamination detection unit 12b detects that the contamination of the light receiving surface portion 10a has been reduced to a predetermined degree, the control unit 30a stops the operation of the water supply pump 32a of the water supply unit 32.

  Furthermore, the control part 30a operates the water supply pump 32a of the water supply part 32, when the snow cover of the light-receiving surface part 10a detected by the snow detection part 12c becomes more than the predetermined level which causes the power generation efficiency fall of a solar cell. Water is supplied from the water supply unit 14 to the light receiving surface portion 10a of the solar cell panel 10. As a result, the snow accumulation on the light receiving surface portion 10a is melted to prevent the power generation efficiency of the solar cell from being reduced as much as possible. When the snow detector 12c detects that the snow on the light receiving surface 10a has melted, the controller 30a stops the operation of the water supply pump 32a of the water supply unit 32.

  As described above, by operating the water supply pump 32 a and supplying water to the water supply unit 14 by the water supply unit 32, water is discharged from many discharge ports in the water supply unit 14, and the light receiving surface portion 10 a of the solar cell panel 10. To be supplied. The water flows down on the light receiving surface part 10a, reaches the water receiving part 16 with accompanying substances, is received by the receiving tank 20a of the water storage tank 20 through the transfer part 18, and removes a relatively large solid accompanying substance. In addition, the water is supplied to the water tank 20b through sedimentation processing such as sand such as yellow sand and mud particles, and is again supplied to the water supply section 14 by the water supply section 32 through the decomposition / purification processing of the pollutants by microorganisms in the water tank 20b. During this time, rainwater and snowmelt water are also received by the receiving tank 20a through the water receiving section 16 and the transferring section 18 depending on the situation, and when necessary, the receiving tank 20a is further replenished with water.

  In this way, the water containing the accompanying substances is circulated and reused. However, the water sent to the water supply unit 14 by the water feeding unit 32 is used to remove relatively large solid accompanying substances, sand such as yellow sand, etc. Since it is water that has undergone sedimentation treatment of particles and mud particles, and decomposition / purification treatment of pollutants by microorganisms, it is possible to prevent inconvenience such as clogging in the water supply unit 14 due to the accompanying water. Accordingly, by operating the water supply section 32 as necessary, the water-receiving surface section 10a is circulated between the light-receiving surface section 10a and the water storage tank 20, and the light-receiving surface section 10a is cooled, washed, and melted. In addition, emergency water can be stored in the water storage tank 20.

  (3) Examples of the device having a light receiving surface part for receiving sunlight include a solar cell device provided with a solar cell, a solar water heater, a device utilizing a photochemical reaction by sunlight, and the like. .

  It is desirable to install an apparatus having such a light receiving surface portion so that the light receiving surface portion is inclined (in particular, at an inclination angle at which sunlight can be efficiently received). When a plurality of light receiving surface portions are provided at different positions in the vertical direction, it is desirable that water flowing down the light receiving surface portion located above is supplied to the light receiving surface portion located below. In this case, a plurality of upper and lower light receiving surface portions can be arranged along a predetermined inclined surface (for example, an inclined surface on the roof inclined at an angle of the inclined roof).

  (4) The water supply section supplies water (including an aqueous liquid such as an aqueous solution) to the light-receiving surface portion. As an example, a large number of water supply sections are provided at intervals in the axial direction of the pipe. Examples include one provided with a discharge port, one or more or a plurality of discharge pipes that discharge water from the end of the pipe, and sprinklers. The position of the water supply unit is, for example, the upper end portion of the light receiving surface portion (if there are a plurality of light receiving surface portions at different positions, for example, the upper end portion of the uppermost light receiving surface portion or each light receiving surface portion The upper position of the light receiving surface portion, such as the upper end portion) or the upper portion separated from the light receiving surface portion. The water supply mode can be changed according to the purpose of cooling, washing, melting snow, and the like.

  (5) The water receiving portion receives at least water, rain water or snowmelt water supplied from the water supply portion to the light receiving surface portion, and accompanying water. Water other than these may be contained as water. Examples of the accompanying water include insects, bird feathers and feces, plant leaves, seeds and pollen, accompanying animals and plants such as microorganisms, or dead bodies thereof, and isolated from them, sand containing yellow sand, Examples include dust and various other garbage. The water receiving portion can be formed in a groove shape, a bowl shape, or a funnel shape, for example. The position of the water receiving portion can be, for example, the lower position of each light receiving surface portion, the lower position of the lowermost light receiving surface portion when a plurality of light receiving surface portions exist at different positions in the vertical direction, and the like.

  (6) The transfer unit transfers at least water to the water storage unit among those received by the water receiving unit. As a transfer target, water and its accompanying substances can be used, and only water (including an aqueous solution) can be used. In the case of using only water, for example, by providing a purification unit between the water receiving unit, between the water receiving unit and the transfer unit, or within the transfer unit, the accompanying substances are removed from what the water receiving unit has received, and only the water is transferred. Can be transported. Examples of the transfer unit include a tubular, groove-shaped, or bowl-shaped water conduit.

  (7) The water storage tank receives and stores at least the water transferred by the transfer unit. In addition to receiving water, rain water or snowmelt water flowing from the water supply section to the light receiving surface section, and accompanying water, the purifying section is provided between the water receiving section and the water storage tank. It is also possible to accept only water (including aqueous solutions). The water storage tank can be installed, for example, indoors or outdoors, near the ground, 1 to several meters above the ground, or underground. Preferable is a place (for example, underground) where temperature fluctuation due to outside air temperature change is as small as possible.

  (8) The purification unit purifies water containing accompanying substances. For example, one or more of filtration, precipitation, and decomposition / purification of pollutants by microorganisms are performed on water containing accompanying substances. Can be performed. A purification | cleaning part can be provided in a water receiving part, between a water receiving part and a transfer part, in a transfer part, between a transfer part and a water tank, or in a water tank, for example. As a case where the water storage tank has a purification section, for example, the water storage tank receives the water and accompanying substances transferred by the transfer section and performs filtration and precipitation treatment on the water and the accompanying substances, and the water storage tank is processed in the receiving tank. A water supply tank that is supplied with water and decomposes and purifies pollutants by microorganisms can be provided as a purification section. In the receiving tank, the filtered water can be subjected to the decomposition and purification treatment of the pollutant by microorganisms.

  (9) The water supply section is for supplying water stored in the water storage tank to the water supply section, and the water supplied to the water supply section by the water supply section is water that has been purified in the purification section. . As the water supply section, for example, there is a need for a water supply path (for example, a tubular water supply path, a grooved water supply path, a combination thereof) from the water storage tank to the water supply section, a pump according to the need for pumping or pressurization, or pumping water. A water supply channel opening / closing device such as an opening / closing valve can be used. The amount of water supply can be changed according to the purpose of cooling, washing, melting snow, and the like.

  (10) The replenishing unit replenishes water from the water supply source according to the amount of water detected by the water amount detecting unit that detects the amount of water in the predetermined part in the water tank. The water amount detection unit can detect the amount of water in a predetermined portion in the water storage tank based on, for example, water level or weight using various sensors. Examples of water supply sources include water storage tanks other than water storage tanks, wells, rivers, lakes, ponds, and waterworks. As the replenishment section, for example, there is no need for a water supply channel (for example, a tubular water supply channel, a grooved water supply channel, or a combination thereof) from a water supply source to a water storage tank, a pump according to need such as pumping or pressurization, or pumping A water supply opening / closing device such as an on-off valve can be used.

  (11) The temperature detection unit detects the temperature of the solar cell in the solar cell device including the solar cell directly or indirectly using a temperature sensor or other sensors. For example, the temperature of the solar cell is detected by the output voltage of the solar cell itself or other temperature sensor, or any position in the solar cell device or a predetermined position away from the solar cell device (for example, outside the water tank) By detecting the temperature of the predetermined position, the temperature of the solar cell can be indirectly detected based on the relationship between the temperature of the position and the temperature of the solar cell. In accordance with the temperature of the solar cell detected by the temperature detection unit, the water supply unit supplies the water stored in the water storage tank to the water supply unit in order to prevent a decrease in power generation efficiency due to a rise in the temperature of the solar cell as much as possible. By doing so, water can be supplied from the water supply part to the light receiving surface part to cool the solar cell.

  (12) The dirt detection unit is a solar cell device provided with a sensor (which may have a light emitting part) for detecting dirt on the light receiving surface part and reflected light on the light receiving surface part, an ultrasonic sensor, or a solar cell. Is detected by a decrease in the output voltage of the solar cell or a combination thereof. In response to the contamination of the light receiving surface detected by the contamination detector, the water supply unit can reduce the operating efficiency of the device having the light receiving surface for receiving sunlight as a result of the contamination of the light receiving surface. In order to prevent the contamination, the water stored in the water storage tank is supplied to the water supply unit so that the water is supplied from the water supply unit to the light receiving surface portion to clean the light receiving surface portion.

  (13) The snow detection unit is provided with a sensor (which may have a light emitting unit), an ultrasonic sensor, or a solar cell that detects snow or snowfall on the light receiving surface part, reflected light from the snow or snowfall. It can detect by the output voltage fall of the solar cell in a solar cell apparatus, temperature, a temperature sensor of a predetermined position, or these combinations. In response to snow or snowfall detected by the snow detection unit, the water supply unit prevents the operating efficiency of the device equipped with the light receiving surface for receiving sunlight from being reduced as much as possible by the snow on the light receiving surface. In order to do this, the water stored in the water storage tank is supplied to the water supply unit to supply water from the water supply unit to the light receiving surface portion to melt the snow on the light receiving surface portion.

DESCRIPTION OF SYMBOLS 10 Solar cell panel 10a Light reception surface part 12 Detector 12a Temperature detection part 12b Dirt detection part 12c Snow detection part 14 Water supply part 16 Water reception part 18 Transfer part 20 Water storage tank 20a Receiving tank 20b Water supply tank 20c Partition wall 20d Manhole 20e Drain valve 22 Strainer 24 Supply Unit 24a Open / Close Valve 25 Excess Water Discharge Pipe 26 Decomposition / Purification Unit 28 Water Volume Detection Unit 28a First Water Level Sensor 28b Second Water Level Sensor 30 Control Panel 30a Control Unit 32 Water Supply Unit 32a Water Supply Pump 32b Water Supply Path R Inclined Roof

Claims (11)

A water supply unit for supplying water to the light receiving surface portion of the device having a light receiving surface portion for receiving sunlight;
At least a water receiving part that receives the water, rainwater or snowmelt water supplied from the water supply part to the light receiving surface part, and the accompanying water, and
A transfer unit that transfers at least water among those received by the water receiving unit; and
A water storage tank that receives and stores at least the water transferred by the transfer unit;
A purification section for purifying water containing accompanying substances;
A water supply unit for supplying water stored in the water storage tank to the water supply unit;
The processing for the light receiving surface portion is performed while circulating water between the light receiving surface portion of the device having a light receiving surface portion for receiving sunlight and a water storage tank,
The solar light receiving surface portion circulation processing apparatus, wherein the water supplied to the water supply portion by the water supply portion is water that has been purified by the purification portion.   The solar light receiving surface part circulation processing device according to claim 1, wherein the purification unit performs filtration, precipitation treatment, and decomposition / purification treatment of contaminants by microorganisms with respect to water containing accompanying substances.   The solar light receiving device according to claim 1, wherein the transfer unit is configured to transfer water and accompanying substances received by the water receiving unit to a water storage tank, and the water storage tank includes a purification unit that performs purification during storage. Surface circulation processing equipment. The water storage tank receives the water and accompanying substances transferred by the transfer unit and performs filtration and precipitation treatment on the water, and the water processed in the receiving tank is supplied to decompose and purify pollutants by microorganisms. A water tank for processing is provided as a purification section,
The solar light receiving surface portion circulation processing device according to claim 3, wherein the water supply unit is configured to supply water from the water supply tank to the water supply unit.   5. The apparatus according to claim 1, further comprising: a water amount detection unit that detects a predetermined amount of water in the water storage tank; and a replenishment unit that replenishes water from a water supply source according to the amount of water detected by the water amount detection unit. The sunlight receiving surface part circulation processing apparatus of description.   A light receiving surface portion of a device having a light receiving surface portion for receiving sunlight is disposed along a predetermined inclined surface, a water supply portion is disposed above the light receiving surface portion, and a position below the light receiving surface portion. The solar light receiving surface portion circulation processing device according to any one of claims 1 to 5, wherein a water receiving portion is disposed on the surface.   The solar light receiving surface portion circulation processing device according to any one of claims 1 to 6, wherein the device including the light receiving surface portion for receiving sunlight is a solar cell device including a solar cell. It has a temperature detector that detects the temperature of the solar cell directly or indirectly,
The water supply unit supplies water from the water supply unit to the light receiving surface unit by supplying water stored in the water storage tank to the water supply unit according to the temperature of the solar cell detected by the temperature detection unit. The solar light receiving surface portion circulation processing device according to claim 7, which cools the battery. It has a dirt detector that detects dirt on the light receiving surface,
The water supply unit supplies water from the water supply unit to the light receiving surface unit by supplying water stored in the water storage tank to the water supply unit in response to the contamination of the light receiving surface unit detected by the dirt detection unit. The solar light receiving surface portion circulation processing device according to any one of claims 1 to 8, wherein the light receiving surface portion is cleaned of dirt. It has a snow detection part that detects snowfall or snowfall,
The water supply unit supplies water from the water supply unit to the light receiving surface unit by supplying water stored in the water storage tank to the water supply unit in response to the snow accumulation or snowfall detected by the snow detection unit. The solar light receiving surface part circulation processing device according to any one of claims 1 to 9, wherein the snow on the part is melted.   A solar light receiving system comprising: the solar light receiving surface portion circulation processing device according to any one of claims 1 to 10; and a device including the light receiving surface portion to be processed by the device.

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