JP2021167789A - Device for capturing wind direction classified flying particles and method for capturing the same - Google Patents

Abstract

To conform a deposition amount of flying particles per unit area for each wind direction so as to effectively remove the flying particles attached to a solar panel or the like according to a wind direction.SOLUTION: A device for capturing wind direction classified flying particles includes: a plurality of funnel units provided correspondingly to each of a plurality of predetermined different wind directions, for taking in the flying particles flying for each wind direction; a plurality of lids for opening and closing each inlet for the flying particles in the plurality of funnel units; a control unit that opens the lid corresponding to direction indicated by a wind direction signal among the plurality of lids according to the wind direction signal indicating the plurality of wind directions obtained from an anemoscope; a pump unit that suctions from an outlet side of the plurality of funnel units so that the flying particles can pass toward an outlet from the inlet of the funnel unit in which the lid corresponding to the wind direction indicated by the wind direction signal is opened; and a plurality of filter units provided in a path between the outlet of the plurality of funnel units and the pump unit, for capturing the flying particles that have passed through each of the plurality of funnel units.SELECTED DRAWING: Figure 2

Description

The present invention relates to a device for capturing flying particles according to the wind direction and a method for capturing the same.

For example, in a photovoltaic power plant, if flying particles containing pollutants (iron powder, etc.) that have entered the wind adhere to the surface of the solar panel and accumulate, there is a risk that the solar panel will not be able to obtain sufficient power generation. There is. Therefore, in order to grasp the current power generated by the solar panel, a technique for calculating the power loss of the solar panel from the amount of flying particles deposited on the solar panel based on the output of the wind speed and wind direction meter is known. There is. (See Patent Document 1)

Japanese Unexamined Patent Publication No. 2013-191719

However, in the above-mentioned Patent Document 1, since the power loss of the solar panel is only calculated from the accumulated amount of flying particles actually attached to the solar panel, it adheres to the solar panel according to the wind direction. Flying particles cannot be removed effectively.

Therefore, according to the present invention, it is possible to confirm the amount of flying particles deposited per unit area for each wind direction so that the flying particles adhering to equipment such as a solar panel can be effectively removed according to the wind direction. It is an object of the present invention to provide a various capture device and capture method.

The main invention for solving the above-mentioned problems is provided in response to a plurality of different wind directions determined in advance, and a plurality of funnel portions for taking in flying particles flying for each wind direction, and the funnel portions in the plurality of funnel portions. The lid corresponding to the wind direction indicated by the wind direction signal among the plurality of lids according to the plurality of lids that open and close the inlets of the flying particles and the wind direction signals indicating the plurality of wind directions obtained from the wind direction meter. The plurality of funnels so that the flying particles can pass from the inlet to the outlet of the funnel portion in which the control unit for opening the unit and the lid portion corresponding to the wind direction indicated by the wind direction signal are open. A plurality of filters provided in the path between the pump portion that sucks from the outlet side of the portion and the outlets of the plurality of funnel portions and the pump portion, and captures the flying particles that have passed through the plurality of funnel portions. It has a department.
Other features of the invention will become apparent with reference to the accompanying drawings and the description herein.

According to the present invention, it is possible to confirm the amount of flying particles deposited per unit area for each wind direction so that the flying particles adhering to equipment such as a solar panel can be effectively removed according to the wind direction. It becomes.

It is a schematic diagram which shows the state that the capture device of the flying particle by the wind direction which concerns on this Embodiment is installed in a solar power plant, for example. It is a figure which shows an example of the trapping apparatus which concerns on this embodiment. In this embodiment, it is a figure which shows an example of the structure which attaches the filter part to a branch pipe detachably. It is a block diagram which shows an example of the control part used for the capture device which concerns on this embodiment. It is a flowchart which shows an example of the operation of the control part which controls the operation of the capture device which concerns on this embodiment.

The description of this specification and the accompanying drawings will clarify at least the following matters.

For example, depending on the surrounding environment, various flying particles including pollutants, for example, fly and adhere to the solar panels for power generation installed on the premises of a solar power plant on the wind. Sometimes. If the flying particles are repeatedly attached to the solar panel and eventually the flying particles are deposited on the solar panel, the irradiation of sunlight to the solar panel is blocked, and there is a risk that the generated power will be limited. be. The amount of these flying particles deposited on the solar panel may differ depending on the wind direction. Therefore, in order to effectively remove the flying particles deposited on the solar panel, the amount of flying particles deposited on the solar panel per fixed period is observed for each wind direction, and the observation information is used for cleaning the surface of the solar panel. It is desirable to use it efficiently. In the present embodiment, a device for capturing flying particles according to the wind direction, which is suitable for such utilization, is provided.
=== Installation example of capture device ===

FIG. 1 is a schematic view showing a state in which a wind direction-specific flying particle trapping device according to the present embodiment is installed in, for example, a solar power plant.

In FIG. 1, a plurality of solar panels 110 are arranged and installed on the site of the photovoltaic power plant 100 for the purpose of generating a predetermined electric power. The capture device 200 is installed in an empty space adjacent to the installation space of the solar panel 110, for example, in the site of the photovoltaic power plant 100.

The capture device 200 captures flying particles for each wind direction during a predetermined period (for example, one day, one week, one month, etc.), and the flying particles per unit area (for example, the area of the filter body described later). It is a device for observing the amount of deposits. Here, the wind direction is defined as four directions of north, south, east, and west for convenience for the sake of simplicity. The wind direction signals indicating these wind directions are obtained from, for example, the wind direction meter 300. It is assumed that the wind direction meter 300 is installed on the premises of the photovoltaic power plant 100, for example.

Various types of weather vane 300 are well known, but any type of weather vane can be adopted as long as a wind direction signal indicating the wind direction can be obtained as an electric signal. For example, as disclosed in Jinkaisho 58-74164, the central angle of 360 degrees in all directions is divided into 16 equal parts, and 16 wind directions (north, north-northeast, northeast, east-northeast, east, east-southeast, southeast, A disk-shaped encoder with 4-bit digital values (0000-1111) assigned to each of south-southeast, south, south-southwest, southwest, west-southwest, west, west-northwest, northwest, north-northwest) is coaxial with the rotation axis of the wind direction meter. By attaching and reading the digital value assigned to the encoder when the wind direction meter is rotated at a constant sampling interval, a wind direction signal indicating the wind direction may be easily obtained as an electric signal.

In the present embodiment, as described above, the wind direction is set to four directions of north, south, east, and west, but the wind direction changes sequentially. Therefore, when the above-mentioned encoder is used, for example, the wind direction in a section of 90 degrees from northwest to northeast. Is regarded as "north", the wind direction of the 90 degree section from northeast to southeast is regarded as "east", the wind direction of the 90 degree section from southeast to southwest is regarded as "south", and the wind direction of 90 degree from southwest to northwest is regarded as "south". The wind direction in the section may be regarded as "west", and the wind direction with a large proportion may be selected within a certain period of time.
=== Capturer ===

FIG. 2 is a diagram showing an example of a capture device according to the present embodiment.
The capture device 200 has four funnel portions 210A to 210D, four lid portions 220A to 220D, four valve portions 230A to 230D, and a pipe portion as means for capturing flying particles flying on the wind. It includes 240, four filter units 250A to 250D, a pump unit 260, and a control unit 270.

The funnel portions 210A to 210D, for example, capture the flying particles flying in each of the four wind directions of north, south, east, and west defined as described above. It is provided with outlets 212A to 212D for discharging. The funnel portions 210A to 210D are installed side by side at regular intervals, for example.

The lid portions 220A to 220D are flat plate-shaped members that open and close the inlets 211A to 211D of the funnel portions 210A to 210D, respectively. The lid portions 220A to 220D are rotatably supported on one side 213A to 213D forming the inlets 211A to 211D of the funnel portions 210A to 210D. Further, packings 221A to 221D are attached to the surfaces of the lids 220A to 220D facing the inlets 211A to 211D so that the inlets 211A to 211D can be sealed by the lids 220A to 220D.

Further, elastic force by elastic members 222A to 222D such as coil springs is applied between the lid portions 220A to 220D and the inlets 211A to 211D so that the lid portions 220A to 220D can seal the inlets 211A to 211D. Has been done. In FIG. 2, since the lids 220B to 220D are shown in a state where the inlets 211B to 211D are closed, the elastic members 222B to 222D are not visible, but they are attached in the same manner as the elastic members 222A.

Further, electromagnetic members 223A to 223D such as a solenoid for opening the inlets 211A to 211D against the elastic force of the elastic members 222A to 222D are attached to the lid portions 220A to 220D. That is, when the control unit 270 acquires a wind direction signal indicating the wind direction from the wind direction meter 300, the lid portions 220A to 220D corresponding to the wind direction are subjected to the elastic force of the elastic members 222A to 222D by the suction operation of the electromagnetic members 223A to 223D. It rotates clockwise so as to open the entrances 211A to 211D. On the other hand, when the control unit 270 does not acquire the wind direction signal corresponding to the wind direction from the wind direction meter 300, the corresponding lids 220A to 220D are elastic members because the suction operation of the electromagnetic members 223A to 223D is stopped. The inlets 211A to 211D are sealed according to the elastic force in the counterclockwise direction of 222A to 222D.

The valve portions 230A to 230D are attached to the outlets 212A to 212D so that the outlets 212A to 212D of the funnel portions 210A to 210D can be opened and closed. When the control unit 270 acquires a wind direction signal indicating the wind direction from the wind direction meter 300, the valve units 230A to 230D corresponding to the wind direction open the outlets 212A to 212D by the wind direction signal. On the other hand, when the control unit 270 does not acquire the wind direction signal corresponding to the wind direction from the wind direction meter 300, the corresponding valve units 230A to 230D close the outlets 212A to 212D. As described above, the lids 220A to 220D are provided on the inlets 211A to 211D of the funnel portions 210A to 210D, and the valve portions 230A to 230D are provided on the outlets 212A to 212D side of the funnel portions 210A to 210D. Since the 220A to 220D and the valve units 230A to 230D open and close in synchronization with the wind direction signal indicating the wind direction, the filter units 250A to 250D, which will be described later, can reliably capture the flying particles.

The pipe portion 240 includes four branch pipes 241A to 241D and one collecting pipe 242. The branch pipes 241A to 241D are coupled to the outlets 212A to 212D of the funnel portions 210A to 201D via the valve portions 230A to 230D, respectively. Further, the collecting pipe 242 is coupled to the end portion of the branch pipes 241A to 241D opposite to the valve portions 230A to 230D. As a result, the tube portions 240 are grouped into four to one in the direction in which the flying particles are directed from the inlets 211A to 211D of the funnel portions 210A to 210D to the outlets 212A to 212D.

The filter portions 250A to 250D are detachably attached to the intermediate paths of the branch pipes 241A to 241D so that the flying particles that have passed through the funnel portions 210A to 210D and the valve portions 230A to 230D can be captured, respectively. ..

FIG. 3 shows an example of a structure in which the filter portions 250A to 250D are detachably attached to the branch pipes 241A to 241D. Since the structure for detachably attaching the filter portions 250A to 250D to the branch pipes 241A to 241D may be the same, only one example of attaching the branch pipe 241A to the filter portion 250A will be described. For convenience of explanation, the valve portion 230A will be referred to as a valve portion 230, a branch pipe 241A will be referred to as a branch pipe 241 and a filter portion 250A will be referred to as a filter portion 250. Further, the branch pipe 241 has a cylindrical shape.

The branch pipe 241 has a two-divided structure consisting of an upstream branch pipe 2411 on the valve portion 230 side and a downstream branch pipe 2412 on the collecting pipe 242 side so that the filter portion 250 can be attached to and detached from the branch pipe 241. ing. The filter portion 250 includes a cylindrical frame body 2502 having a flange 2501 on the outer periphery and a filter body 2503 mounted on the inner peripheral surface of the frame body 2502. For the filter main body 2503, for example, an air filter such as HEPA can be adopted. Then, the flange 2501 is sandwiched between the upstream branch pipe 2411 and the downstream branch pipe 2412, and the outer peripheral surface of the frame body 2502 is integrally fixed in a state of facing the inner peripheral surfaces of the upstream branch pipe 2411 and the downstream branch pipe 2412. Will be done.

For example, a male screw 2504 is formed on the outer peripheral surface of the frame body 2502 facing the inner peripheral surface of the upstream branch pipe 2411, and the male screw 2505 is also formed on the outer peripheral surface of the frame body 2502 facing the inner peripheral surface of the downstream branch pipe 2412. Is formed. On the other hand, a female screw 2413 screwed to the male screw 2504 is formed on the inner peripheral surface of the upstream branch pipe 2411 facing the male screw 2504, and a male screw is also formed on the inner peripheral surface of the downstream branch pipe 2412 facing the male screw 2505. A female screw 2414 screwed into 2505 is formed. Then, by screwing the female screws 2413 and 2414 with the male screws 2504 and 2505, respectively, the filter unit 250 can be detachably attached to the upstream branch pipe 2411 and the downstream branch pipe 2412. The above description is an example of the structure of the filter unit 250, and any structure may be used as long as the filter unit 250 can be detachably attached to the branch pipe 241.

The pump unit 260 is attached to the path of the collecting pipe 242 so that the filter units 250A to 250D can capture the flying particles, and the flying particles are transferred from the inlets 211A to 211D of the funnel portions 210A to 210D to the outlets 212A to 212D. Performs suction operation in the direction of the direction. In order for the pump 260 to perform the suction operation, the path of the intake destination needs to be open, so that the pump 260 is any one of the lid portions 220A to 220D and any of the corresponding valve portions 230A to 230D. When one of them is open, the suction operation is performed. However, since the wind direction meter 300 always generates a wind direction signal indicating one of the wind directions, in the present embodiment, the pump unit 260 is always in the suction operation. This makes it possible for the filter units 250A to 250D to effectively capture the flying particles. The suction capacity of the pump unit 260 is set to a capacity necessary and sufficient for the filter units 250A to 250D to capture the flying particles.

When the wind direction signal indicating the wind direction is output from the wind direction meter 300 as an electric signal, the control unit 270 operates / stops the electromagnetic members 223A to 223D and opens / closes the valve units 230A to 230D in response to the wind direction signal. / Control stop.

For example, when a wind direction signal indicating the eastern wind direction is output from the wind direction meter 300, the control unit 270 operates the electromagnetic member 223A in response to the wind direction signal. Then, the lid portion 210A rotates clockwise against the elastic force of the elastic member 222A with the side 213A as a support axis, and opens the inlet 211A of the funnel portion 210A. The control unit 270 also opens the valve unit 230A in response to this wind direction signal. As a result, the flying particles flying on the wind are taken in from the inlet 211A of the funnel portion 210A, pass through the outlet 212A and the valve portion 230A of the funnel portion 210A, and are captured by the filter portion 250A.

FIG. 4 is a block diagram showing an example of the control unit 270 used in the capture device according to the present embodiment.

The control unit 270 includes a storage unit 2701, a wind direction determination unit 2702, and a timer 2703 as means for performing the above control. The function of the wind direction determination unit 2702 is realized by software processing of the program read from the storage unit 2701, and the specific operation thereof will be described later.
=== Operation of capture device ===

FIG. 5 is a flowchart showing an example of the operation of the control unit 270 that controls the operation of the capture device 200 according to the present embodiment. The main body that controls the operation of the capture device 200 is the wind direction determination unit 2702 of the control unit 270. Further, for example, one month is set as a fixed period for capturing flying particles.

First, when starting to capture flying particles, an operator operates a capture start button (not shown) provided in the capture device 200. The wind direction determination unit 2702 determines whether or not the acquisition request signal generated by the operation of the acquisition start button has been received (step S1). When the wind direction determination unit 2702 has not received the capture request signal (step S1: NO), the wind direction determination unit 2702 repeats the determination operation in step S1 until the capture request signal is received.

Next, when the wind direction determination unit 2702 receives the acquisition request signal (step S1: YES), the timer 2703 is reset to start the time measurement in order to grasp the passage of a certain period from the start of acquisition (step S2).

Next, the wind direction determination unit 2702 determines whether or not the timer 2703 has clocked a certain period of time (step S3). When the timer 2703 has not completed the time counting for a certain period (step S3: NO), the wind direction determination unit 2702 receives the wind direction signal indicating the wind direction from the wind direction meter 300 as an electric signal (step S4). Here, the wind direction signal indicating the wind direction is a signal defined as described above as the north, south, east, and west directions. Since the wind direction meter 300 always outputs a wind direction signal indicating one of the wind directions as an electric signal, the wind direction determination unit 2702 always receives this wind direction signal.

Next, the wind direction determination unit 2702 determines which direction the wind direction signal received in step S4 is in the north, south, east, or west, and covers the lid portions 220A to 220D and the valve portions 230A to 230D corresponding to the corresponding wind direction. An open / close control signal for opening is output (step S5). For example, when the wind direction signal indicates the eastern wind direction, an open / close control signal for opening only the lid portion 220A and the valve portion 230A is output. By this open / close control signal, the electromagnetic member 223A operates, the lid portion 220A rotates counterclockwise with the side 213A as a support axis against the elastic force of the elastic member 222A, and the inlet 211A of the funnel portion 210A is opened. .. At the same time, the valve portion 230A is also opened by this open / close control signal. As a result, the continuous path of the branch pipe 241A and the collecting pipe 242 is sucked by the pump unit 260, and the flying particles flying on the wind, which is considered to be the eastern wind direction, are captured by the filter unit 250A through the funnel unit 210A. The Rukoto. When the wind direction signal received in step S4 indicates the other three directions of north, south, west, the wind direction determination unit 2702 outputs an open / close control signal indicating these three directions in step S5. Since the opening / closing operation of the lid portions 220B to 220D and the valve portions 230B to 230D is the same as the opening / closing operation of the lid portions 220A and the valve portion 230A, the description thereof will be omitted.

When the wind direction determination unit 2702 outputs the open / close control signal in step S5, the wind direction determination unit 2702 returns to step S3 and determines again whether or not the timer 2703 has completed the time counting for a certain period. When the timer 2703 completes the time counting for a certain period of time (step S3: YES), it is assumed that the capture operation of the flying particles in the certain period is completed, and the series of operations is terminated.

In this way, the filter units 250A to 250D for each of the north, south, east, and west wind directions can capture the flying particles flying in each wind direction.
=== Confirmation of the amount of flying particles deposited after capture ===

After the operation of FIG. 5 is completed, the filter portions 250A to 250D are removed from the branch pipes 241A to 241D, and the amount of flying particles deposited on the filter body 2503 is measured. In the case of this embodiment, it is possible to confirm the amount of flying particles deposited for each of the four wind directions in the north, south, east, and west in one month. For example, when the amount of flying particles deposited in the eastern wind direction is the largest, the information indicating the wind direction output from the wind direction meter 300 and the information indicating the wind direction transmitted from the Meteorological Agency are monitored in real time, and these information are used in the east. When it begins to show the wind direction of, a water curtain is put on the surface of the solar panel 110 to make it difficult for flying particles to adhere to the solar panel 110, or this information keeps the eastern wind direction for a certain period of time. After that, the surface of the solar panel 110 can be cleaned. As a result, it is possible to effectively prevent a decrease in the power generated by the solar panel 110 based on the amount of flying particles deposited for each wind direction.

For example, the operation of FIG. 5 may be repeated 12 times every month to digitize the change in the amount of flying particles deposited for each of the four wind directions in the north, south, east, and west throughout the year. Then, statistics on changes in the amount of flying particles deposited by four wind directions in the north, south, east, and west over multiple years are collected, and when the time comes when the amount of flying particles deposited is the highest for each wind direction, the solar panel 110 You may want to clean the surface of the.
=== Summary ===

As described above, the capture device 200 according to the present embodiment is provided corresponding to each of the four wind directions of north, south, east, and west, and has four funnel portions 210A to 210D and four funnel portions 210A to 210D that capture flying particles for each wind direction. The four lids 220A to 220D that open and close the inlets 211A to 211D of the flying particles in the funnels 210A to 201D, and the four lids 220A according to the wind direction signal obtained from the wind direction meter 300. Of ~ 220D, the control unit 270 that opens the lids 220A to 220D corresponding to the wind direction indicated by the wind direction signal, and the entrance 211A of the funnel portions 210A to 210D in which the lids 220A to 220D corresponding to the wind direction indicated by the wind direction signal are open. Pump sections 260 and four funnel sections 210A to 210D that suck from the outlets 212A to 212D of the four funnel sections so that flying particles can pass from ~ 211D to outlets 212A to 212D. It is provided in each of the paths between the outlets 212A to 212D and the pump unit 260, and is provided with four filter units 250A to 250D for capturing flying particles that have passed through the four funnel units 210A to 210D, respectively. ..

Then, by adopting the capture device 200, it becomes possible to confirm the amount of flying particles deposited on the filter units 250A to 250D for each wind direction, so that the flying particles adhering to the solar panel 110 can be confirmed according to the wind direction. It is possible to provide information for effectively removing particles.

Further, it is desirable that the four lid portions 220A to 220D each have a shape that seals and closes the inlets 211A to 211D of the four funnel portions 210A to 210D. Further, the four funnel portions 210A to 210D are provided in the paths between the outlets 212A to 212D and the four filter portions 250A to 250D, respectively, and the four lid portions 220A to 220D are controlled by the control unit 270. It may further include four valve portions 230A to 230D, each of which opens when opened. This makes it possible to accurately confirm the amount of flying particles deposited on the filter units 250A to 250D for each wind direction.

It should be noted that the above embodiment is for facilitating the understanding of the present invention, and is not for limiting and interpreting the present invention. The present invention can be modified and improved without departing from the spirit thereof, and the present invention also includes an equivalent thereof.

In the present embodiment, the case where the information on the accumulated amount of the flying particles for each wind direction captured by the capturing device 200 is used for the timing of cleaning the surface of the solar panel 110 and the like has been described, but the present invention is limited to this. is not it. Even if the equipment is other than the photovoltaic power plant 100, if the equipment is such that the adhesion and accumulation of flying particles hinder the operation, the information on the amount of flying particles deposited by the wind direction captured by the capture device 200 can be obtained. It can be used as a target.

100 Photovoltaic plant 110 Photovoltaic panel 200 Capturing device 210A to 210D Funnel part 211A to 211D Inlet 212A to 212D Exit 213A to 213D Side 220A to 220D Lid part 221A to 221D Packing 222A to 222D Elastic member 223A to 223D Electromagnetic member 230A to 230D Valve part 240 Pipe part 241A to 241D Branch pipe 242 Assembly pipe 250A to 250D Filter part 260 Pump part 270 Control part 300 Wind direction meter 2411 Upstream branch pipe 2412 Downstream branch pipe 2413, 2414 Female screw 2501 Flange 2502 Frame 2503 Filter body 2504 , 2505 male screw

Claims (5)

A plurality of funnel portions, which are provided corresponding to a plurality of predetermined different wind directions and take in flying particles flying in each of the wind directions, and a funnel portion.
A plurality of lids that open and close the inlets of the flying particles in the plurality of funnel portions, and
A control unit that opens the lid portion corresponding to the wind direction indicated by the wind direction signal among the plurality of lid portions in response to the wind direction signals indicating the plurality of wind directions obtained from the wind direction meter.
Suction is applied from the outlet side of the plurality of funnel portions so that the flying particles can pass from the inlet to the outlet of the funnel portion in which the lid portion corresponding to the wind direction indicated by the wind direction signal is open. Pump part to do and
A plurality of filter units provided in the path between the outlets of the plurality of funnel portions and the pump portion, and capturing the flying particles that have passed through the plurality of funnel portions, respectively.
A device for capturing flying particles by wind direction, which is characterized by being equipped with. The device for capturing flying particles according to a wind direction according to claim 1, wherein each of the plurality of lid portions has a shape in which the inlets of the plurality of funnel portions are hermetically closed. Each of the paths between the outlets of the plurality of funnel portions and the plurality of filter portions is provided, and a plurality of valve portions that are opened when the plurality of lid portions are opened under the control of the control unit are further provided. The device for capturing flying particles according to the wind direction according to claim 1. The device for capturing flying particles by wind direction according to claim 1 or 2, wherein the plurality of wind directions include at least four directions of north, south, east, and west. Of the plurality of lids that open and close the inlets of the plurality of funnels that take in the flying particles that come in for each of a plurality of predetermined different wind directions, depending on the wind direction signals indicating the plurality of wind directions obtained from the weather vane. Open the lid corresponding to the wind direction indicated by the wind direction signal, and open the lid.
The pump unit is provided from the outlet side of the plurality of funnel portions so that the flying particles can pass from the inlet to the outlet of the funnel portion in which the lid portion corresponding to the wind direction indicated by the wind direction signal is open. Suction by
In the path between the outlets of the plurality of funnel portions and the pump portion, the flying particles according to the wind direction are captured by a plurality of filter portions that capture the flying particles that have passed through the plurality of funnel portions, respectively. Capture method.

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