CN109861641B - Photovoltaic module cooling system based on Internet of things technology and control method - Google Patents
Photovoltaic module cooling system based on Internet of things technology and control method Download PDFInfo
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- CN109861641B CN109861641B CN201910067746.7A CN201910067746A CN109861641B CN 109861641 B CN109861641 B CN 109861641B CN 201910067746 A CN201910067746 A CN 201910067746A CN 109861641 B CN109861641 B CN 109861641B
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Abstract
The invention discloses a photovoltaic module cooling system based on the technology of the Internet of things, which comprises a horizontal table, wherein a photovoltaic solar panel array is arranged above the horizontal table; the photovoltaic solar panel array at least comprises a first row of photovoltaic solar panels, a second row of photovoltaic solar panels, a third row of photovoltaic solar panels and a fourth row of photovoltaic solar panels which are distributed in parallel; the photovoltaic solar module has a simple structure, and an active cooling mechanism can be started when the photovoltaic solar module is exposed to extreme cold weather, so that a photovoltaic array is cooled immediately and effectively, and the photovoltaic cell panel is prevented from being damaged by exposure to the sun; the cooling robot sequentially passes through the first straight rail, the first bent rail, the second straight rail, the second bent rail and the third straight rail; and the water pump can be started in the process of passing through the first straight rail, the second straight rail and the third straight rail, so that the cooling robot can realize uniform infiltration of cooling water mist of the whole photovoltaic solar panel array after completely walking the whole water channel rail, and the effect of forced cooling is achieved.
Description
Technical Field
The invention belongs to the field of photovoltaic power generation, and particularly relates to a photovoltaic module cooling system and a control method based on the technology of the Internet of things.
Background
The photovoltaic solar module is easy to be damaged due to excessive temperature rise in extreme severe insolation weather, so a forced cooling mechanism is needed to temporarily cope with the situation of extreme high temperature.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a photovoltaic module cooling system and a control method based on the internet of things technology, which can actively cool under the condition of insolation.
The technical scheme is as follows: in order to achieve the purpose, the photovoltaic module cooling system based on the internet of things technology comprises a horizontal table, wherein a photovoltaic solar panel array is arranged above the horizontal table; the photovoltaic solar panel array at least comprises a first row of photovoltaic solar panels, a second row of photovoltaic solar panels, a third row of photovoltaic solar panels and a fourth row of photovoltaic solar panels which are distributed in parallel;
a first gap is formed between the first row of photovoltaic solar panels and the second row of photovoltaic solar panels, and a second gap is formed between the second row of photovoltaic solar panels and the third row of photovoltaic solar panels; a third gap is formed between the third row of photovoltaic solar panels and the fourth row of photovoltaic solar panels;
a zigzag water channel rail is further arranged below the photovoltaic solar panel array in a zigzag manner, the water channel rail comprises a left channel side and a right channel side, and a zigzag groove is formed between the left channel side and the right channel side;
one side of the horizontal platform is also provided with a water storage tank, a water storage tank is arranged in the water storage tank, the water storage tank is communicated with one end of the groove, and the other end of the groove is blocked; the liquid level in the groove is equal to the liquid level in the water storage tank; the water outlet end of the water replenishing pipe is communicated with the water storage tank;
the water channel rail comprises a first straight rail, a first bent rail, a second straight rail, a second bent rail and a third straight rail which are sequentially connected end to end; the first straight rail is parallel to the position right below the first gap; the second straight rail is parallel to the position right below the second gap; the third straight rail is parallel to the position right below the third gap;
the water tank comprises a water tank rail and is characterized by further comprising a cooling robot, wherein the cooling robot can walk along the zigzag extending direction of the water tank rail and spray cooling water mist to a path where the cooling robot travels, and a water inlet end of the cooling robot can suck water in the water tank in real time.
Further, the cooling robot comprises a horizontal cross beam, the horizontal cross beam is horizontally arranged above the right groove side, and a power supply and control module is fixedly installed on the horizontal cross beam; a roller driver is fixedly installed on the lower side of the left end of the horizontal beam, two driving wheels are connected to the roller driver in a driving mode, the axes of the two driving wheels are perpendicular to the horizontal plane, and the roller driver can drive the two driving wheels to rotate along the axes;
one side surface of the right groove edge, which is close to the groove, is an inner rolling surface, and one side surface of the right groove edge, which is far away from the groove, is an outer rolling surface; the two driving wheels are in rolling connection with the inner rolling surface; the lower end of the roller driver is fixedly connected with a supporting seat, the bottom end of the supporting seat is provided with a supporting roller in a rolling manner, and the supporting roller is connected with the bottom surface of the groove in a rolling manner;
the left end of the horizontal beam is also fixedly provided with a vertical water lifting pipe, the widths of the first gap, the second gap and the third gap are all larger than the outer diameter of the water lifting pipe,
when the robot cooling robot walks on the first straight rail, the second straight rail and the third straight rail respectively, the water lifting pipe vertically penetrates through the first gap, the second gap and the third gap respectively;
the water lift pipe is characterized in that the top end of the water lift pipe is connected with an atomizing head, atomizing nozzles are symmetrically arranged at two ends of the atomizing head, a water pump is arranged on the water lift pipe, a water suction port is further formed in one side of the bottom of the supporting seat, and the lower end of a lifting channel in the water lift pipe extends to be communicated with the water suction port.
Furthermore, a sliding groove is formed in the horizontal cross beam along the length direction, and a sliding block is arranged in the sliding groove; a linear push-pull rod motor is fixedly installed at the right end of the horizontal cross beam, the tail end of a linear push rod of the linear push-pull rod motor is fixedly connected with the sliding block, and the linear push-pull rod motor drives the sliding block to move along the direction of the sliding chute through the linear push rod; the linear push rod is also provided with a thrust sensor;
the sliding block is also provided with a vertical bearing hole; the upper end of the suspension shaft is tightly matched and rotatably connected with a bearing hole in the sliding block through a bearing; one side of the lower end of the suspension shaft, which is close to the right groove edge, is connected with a horizontal clasping wheel frame, the clasping wheel frame is of a structure which is opened in a herringbone shape, two ends of the herringbone shape of the clasping wheel frame are respectively connected with two clasping wheels in a rolling manner, and the axes of the two clasping wheels are vertical to the horizontal plane; the two clasping wheels are connected with the outer rolling surface in a rolling way;
under the thrust of sharp push rod, right groove limit is closely pressed from both sides all the time and is established between action wheel and hug closely the wheel, and the rotation of action wheel drives cooling robot follows the length extending direction walking of right groove limit, and then follows the basin rail extending direction walking.
Further, a cooling method of the photovoltaic module cooling system based on the internet of things technology comprises the following steps:
a water storage process: rainwater on the photovoltaic solar panel array leaks into the grooves on the first straight rail, the second straight rail and the third straight rail through the first gap, the second gap and the third gap respectively in rainy days, so that a rainwater storage process in rainy days is realized, and meanwhile, additional water can be supplied through a water supply pipe when cooling is needed;
and (3) natural cooling: the water level in the grooves of the whole water groove rail is maintained, a zigzag water channel is formed below the photovoltaic solar panel array, and ambient heat is absorbed by utilizing the characteristics of natural evaporation and high specific heat capacity of water in the water channel, so that the primary cooling effect is realized;
robot preparation process: the water level in the groove is controlled to be always higher than the water suction port; so that the lower end of the water lifting pipe can suck the cooling water in the groove all the time; meanwhile, a linear push rod of the linear push-pull rod motor is controlled to do extension movement, so that the linear push rod presses the sliding block leftwards, the thrust applied to the sliding block by the linear push rod is detected in real time through a thrust sensor, and the magnitude of the thrust of the linear push rod is maintained unchanged in real time; under the action of linkage of the sliding blocks, rolling wheel surfaces of the two clasping wheels tightly press an outer rolling surface of the right groove edge, so that the right groove edge is always tightly clamped between the driving wheel and the clasping wheels, the whole structure of the cooling robot is always clasped on the right groove edge, and the cooling robot can be driven to walk along the length extension direction of the right groove edge by the rotation of the driving wheel, namely the cooling robot walks along the water groove rail;
the robot walking and forced cooling photovoltaic solar panel array process: the cooling robot is positioned on the first straight rail in the initial state, and the cooling robot is positioned at one end far away from the first curved rail; then the roller driver drives the two driving wheels to roll, so that the cooling robot makes linear walking motion along the first straight rail; starting a water pump in the process that the cooling robot does linear walking motion along the first straight rail, so that the cooling robot absorbs cooling water in the groove in real time in the walking process, and spraying water mist from spray nozzles at two ends of a spray head onto the first row of photovoltaic solar panels and the second row of photovoltaic solar panels at two sides, wherein the water mist is uniformly sprayed onto the first row of photovoltaic solar panels and the second row of photovoltaic solar panels after the cooling robot completely walks the path of the first straight rail, so that the first row of photovoltaic solar panels and the second row of photovoltaic solar panels are forcibly cooled;
in the process that the cooling robot transits from walking on the first straight rail to walking on the first bent rail, a straight push rod of a straight push-pull rod motor is controlled to contract inwards for a certain distance in an adaptive manner according to the bending radian of the first bent rail, so that the adaptability of the distance between a driving wheel and a holding wheel is increased, the cooling robot can transit on the first bent rail, meanwhile, the thrust applied to a sliding block by the straight push rod is detected in real time through a thrust sensor, the magnitude of the thrust of the straight push rod is maintained unchanged in real time, and the integral structure of the cooling robot is still in a state of being held tightly on the right groove side all the time in the process of the first bent rail; the roller driver continuously drives the two driving wheels to roll, so that the cooling robot walks along the first curved rail, and the water pump is turned off in the process of walking along the first curved rail;
in the process that the cooling robot transits from walking on the first curved rail to walking on the second straight rail, a linear push rod of a linear push-pull rod motor is controlled to extend for a certain distance in an adaptive manner, so that the adaptability of the distance between a driving wheel and a holding wheel is reduced, the situation that the driving wheel is separated from an inner rolling surface and idles when the cooling robot transits to the second straight rail is avoided, meanwhile, the thrust applied to a sliding block by the linear push rod is detected in real time through a thrust sensor, the magnitude of the thrust of the linear push rod is maintained unchanged in real time, and the whole structure of the cooling robot is still in a state of being held on the right groove side all the time in the process of the second straight rail; the roller driver continues to drive the two driving wheels to roll; the cooling robot sequentially passes through the first straight rail, the first bent rail, the second straight rail, the second bent rail and the third straight rail according to the rule; and the water pump can be started in the process of passing through the first straight rail, the second straight rail and the third straight rail, so that the cooling robot can realize uniform infiltration of cooling water mist of the whole photovoltaic solar panel array after completely walking the whole water channel rail, and the effect of forced cooling is achieved.
Has the advantages that: the photovoltaic solar module has a simple structure, and an active cooling mechanism can be started when the photovoltaic solar module is exposed to extreme cold weather, so that a photovoltaic array is cooled immediately and effectively, and the photovoltaic cell panel is prevented from being damaged by exposure to the sun; the cooling robot sequentially passes through the first straight rail, the first bent rail, the second straight rail, the second bent rail and the third straight rail; and the water pump can be started in the process of passing through the first straight rail, the second straight rail and the third straight rail, so that the cooling robot can realize uniform infiltration of cooling water mist of the whole photovoltaic solar panel array after completely walking the whole water channel rail, and the effect of forced cooling is achieved.
Drawings
FIG. 1 is a first schematic diagram of the overall structure of the scheme;
FIG. 2 is an overall plan view of the present solution;
FIG. 3 is a schematic view of the zigzag distribution of water channel rails after the photovoltaic solar panel array is hidden on the whole structure;
FIG. 4 is a schematic view of a partial structure of a cooling robot walking on a first straight rail;
FIG. 5 is a schematic view of a partial structure of a cooling robot walking on a first curved rail;
fig. 6 is a schematic structural diagram of the cooling robot when spraying cooling water mist to the first row of photovoltaic solar panels and the second row of photovoltaic solar panels on two sides;
FIG. 7 is a schematic structural view of a cooling robot;
fig. 8 is a schematic view of the lower part of the cooling robot.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The photovoltaic module cooling system based on the internet of things technology as shown in fig. 1 to 8 comprises a horizontal table 29, wherein a photovoltaic solar panel array 21 is arranged above the horizontal table 29; the photovoltaic solar panel array 21 at least comprises a first row of photovoltaic solar panels 21.1, a second row of photovoltaic solar panels 21.2, a third row of photovoltaic solar panels 21.3 and a fourth row of photovoltaic solar panels 21.4 which are distributed in parallel;
a first gap 22.1 is formed between the first row of photovoltaic solar panels 21.1 and the second row of photovoltaic solar panels 21.2, and a second gap 22.2 is formed between the second row of photovoltaic solar panels 21.2 and the third row of photovoltaic solar panels 21.3; a third gap 22.3 is formed between the third row of photovoltaic solar panels 21.3 and the fourth row of photovoltaic solar panels 21.4;
a zigzag water channel rail 23 is further arranged below the photovoltaic solar panel array 21 in a zigzag manner, the water channel rail 23 comprises a left channel side 18 and a right channel side 17, and a zigzag groove 20 is formed between the left channel side 18 and the right channel side 17;
a water storage tank 25 is further arranged on one side of the horizontal platform 29, a water storage tank 24 is arranged in the water storage tank 25, the water storage tank 24 is communicated with one end of the groove 20, and the other end of the groove 20 is blocked; the liquid level in the trough 20 is equal to the liquid level in the reservoir 24; the water replenishing pipe 26 is further included, and the water outlet end of the water replenishing pipe 26 is communicated with the water storage tank 24;
the water channel rail 23 comprises a first straight rail 23.1, a first bent rail 23.5, a second straight rail 23.2, a second bent rail 23.4 and a third straight rail 23.3 which are sequentially connected end to end; the first straight rail 23.1 is parallel to the position right below the first gap 22.1; the second straight rail 23.2 is parallel to the second gap 22.2 directly below; the third straight rail 23.3 is parallel to the third gap 22.3 directly below;
the water cooling device further comprises a cooling robot 28, wherein the cooling robot 28 can walk along the zigzag extending direction of the water tank rail 23 and spray cooling water mist to the traveling path, and the water inlet end of the cooling robot 28 can suck water in the water tank 20 in real time.
The cooling robot 28 comprises a horizontal cross beam 3, the horizontal cross beam 3 is horizontally arranged above the right groove side 17, and a power supply and control module 10 is fixedly arranged on the horizontal cross beam 3; a roller driver 12 is fixedly installed on the lower side of the left end of the horizontal beam 3, two driving wheels 15 are connected to the roller driver 12 in a driving mode, the axes of the two driving wheels 15 are perpendicular to the horizontal plane, and the roller driver 12 can drive the two driving wheels 15 to rotate along the axes;
one side surface of the right groove edge 17 close to the groove 20 is an inner rolling surface 17.1, and one side surface of the right groove edge 17 far away from the groove 20 is an outer rolling surface 17.2; the two driving wheels 15 are in rolling connection with the inner rolling surface 17.1; the lower end of the roller driver 12 is fixedly connected with a supporting seat 14, the bottom end of the supporting seat 14 is provided with a supporting roller 30 in a rolling manner, and the supporting roller 30 is connected with the bottom surface 40 of the groove 20 in a rolling manner;
the left end of the horizontal beam 3 is also fixedly provided with a vertical water lifting pipe 11, the gap widths of the first gap 22.1, the second gap 22.2 and the third gap 22.3 are all larger than the outer diameter of the water lifting pipe 11,
when the robot cooling robot 28 walks on the first straight rail 23.1, the second straight rail 23.2 and the third straight rail 23.3 respectively, the water lifting pipe 11 vertically penetrates through the first gap 22.1, the second gap 22.2 and the third gap 22.3 respectively;
the top end of the water lift pipe 11 is connected with a spray head 31, spray nozzles 32 are symmetrically arranged at two ends of the spray head 31, a water pump 16 is arranged on the water lift pipe 11, a water suction port 13 is further arranged on one side of the bottom of the supporting seat 14, and the lower end of a lifting channel in the water lift pipe 11 extends to be communicated with the water suction port 13.
A sliding groove 8 is formed in the horizontal cross beam 3 along the length direction, and a sliding block 5 is arranged in the sliding groove 8; a linear push-pull rod motor 7 is fixedly installed at the right end of the horizontal beam 3, the tail end of a linear push rod 6 of the linear push-pull rod motor 7 is fixedly connected with the sliding block 5, and the linear push-pull rod motor 7 drives the sliding block 5 to move along the direction of the sliding chute 8 through the linear push rod 6; the linear push rod 6 is also provided with a thrust sensor;
the sliding block 5 is also provided with a vertical bearing hole 9; the device also comprises a vertical suspension shaft 4, and the upper end of the suspension shaft 4 is tightly matched and rotatably connected with a bearing hole 9 on the sliding block 5 through a bearing; one side of the lower end of the suspension shaft 4 close to the right groove edge 17 is connected with a horizontal enclasping wheel frame 2, the enclasping wheel frame 2 is of a structure which is opened in a herringbone shape, two ends of the herringbone shape of the enclasping wheel frame 2 are respectively connected with two enclasping wheels 1 in a rolling way, and the axes of the two enclasping wheels 1 are both vertical to the horizontal plane; the two clasping wheels 1 are connected with the outer rolling surface 17.2 in a rolling way;
under the thrust of the linear push rod 6, the right groove edge 17 is always tightly clamped between the driving wheel 15 and the enclasping wheel 1, and the rotation of the driving wheel 15 drives the cooling robot 28 to walk along the length extending direction of the right groove edge 17, and then along the extending direction of the water groove rail 23.
The operation method, the process and the technical progress of the scheme are organized as follows:
a water storage process: rainwater on the photovoltaic solar panel array 21 leaks into the grooves 20 on the first straight rail 23.1, the second straight rail 23.2 and the third straight rail 23.3 through the first gap 22.1, the second gap 22.2 and the third gap 22.3 respectively in rainy days, so that a rainwater storage process in rainy days is realized, and meanwhile, additional water can be supplied through the water supply pipe 26 when temperature reduction and cooling are needed;
and (3) natural cooling: the water level in the groove 20 of the whole water groove rail 23 is maintained, a zigzag water channel is formed below the photovoltaic solar panel array 21, and the natural evaporation and high specific heat capacity of water in the water channel are utilized to absorb ambient heat, so that the primary cooling effect is realized;
robot preparation process: the water level in the control groove 20 is always higher than the water suction port 13; so that the lower end of the water lifting pipe 11 can suck the cooling water in the groove 20 all the time; meanwhile, the linear push rod 6 of the linear push-pull rod motor 7 is controlled to do extension movement, so that the linear push rod 6 presses the sliding block 5 leftwards, the thrust applied to the sliding block 5 by the linear push rod 6 is detected in real time through a thrust sensor, and the magnitude of the thrust of the linear push rod 6 is maintained unchanged in real time; under the linkage action of the sliding block 5, the rolling wheel surfaces of the two clasping wheels 1 tightly press the outer rolling surface 17.2 of the right groove edge 17, so that the right groove edge 17 is always tightly clamped between the driving wheel 15 and the clasping wheels 1, the integral structure of the cooling robot 28 is always clasped on the right groove edge 17, the cooling robot 28 can be driven to walk along the length extending direction of the right groove edge 17 by the rotation of the driving wheel 15, and the cooling robot 28 can walk along the water groove rail 23 equivalently;
the robot walking and forced cooling photovoltaic solar panel array 21 process: the cooling robot 28 is located on the first straight rail 23.1 in the initial state, and the cooling robot 28 is located at one end far away from the first curved rail 23.5; then the roller driver 12 drives the two driving wheels 15 to roll, so that the cooling robot 28 makes a linear walking motion along the first straight rail 23.1; starting the water pump 16 in the process that the cooling robot 28 makes a linear walking motion along the first straight rail 23.1, so that the cooling robot 28 sucks cooling water in the groove 20 in real time in the walking process, and further spraying water mist from the spray nozzles 32 at the two ends of the spray head 31 to the first row of photovoltaic solar panels 21.1 and the second row of photovoltaic solar panels 21.2 at the two sides, after the cooling robot 28 completely finishes the path of the first straight rail 23.1, uniformly spraying water mist on the first row of photovoltaic solar panels 21.1 and the second row of photovoltaic solar panels 21.2, and further realizing forced cooling of the first row of photovoltaic solar panels 21.1 and the second row of photovoltaic solar panels 21.2;
in the process that the cooling robot 28 transits from walking on the first straight rail 23.1 to walking on the first curved rail 23.5, the linear push rod 6 of the linear push-pull rod motor 7 is controlled to contract inwards for a certain distance according to the curvature of the first curved rail 23.5, so that the distance between the driving wheel 15 and the enclasping wheel 1 is increased adaptively, the cooling robot 28 can transit to the first curved rail 23.5, meanwhile, the thrust applied to the sliding block 5 by the linear push rod 6 is detected in real time through the thrust sensor, the magnitude of the thrust of the linear push rod 6 is maintained unchanged in real time, and the whole structure of the cooling robot 28 is still in the state of enclasping the right groove edge 17 in the process of the first curved rail 23.5; the roller driver 12 continues to drive the two driving wheels 15 to roll, so that the cooling robot 28 walks along the first curved rail 23.5, and the water pump 16 is turned off in the process that the cooling robot 28 walks along the first curved rail 23.5;
in the process that the cooling robot 28 transits from walking on the first curved rail 23.5 to walking on the second straight rail 23.2, the linear push rod 6 of the linear push-pull rod motor 7 is controlled to extend for a certain distance in an adaptive manner, so that the adaptability of the distance between the driving wheel 15 and the enclasping wheel 1 is reduced, the situation that the driving wheel 15 is separated from the inner rolling surface 17.1 to idle when the cooling robot 28 transits to the second straight rail 23.2 is avoided, meanwhile, the thrust applied to the sliding block 5 by the linear push rod 6 is detected in real time through the thrust sensor, the magnitude of the thrust of the linear push rod 6 is maintained in real time, and the whole structure of the cooling robot 28 is still in a state of being enclasped on the right groove edge 17 all the time in the process of the second straight rail 23.2; the roller driver 12 continues to drive the two driving wheels 15 to roll; the cooling robot 28 sequentially passes through the first straight rail 23.1, the first curved rail 23.5, the second straight rail 23.2, the second curved rail 23.4 and the third straight rail 23.3 according to the rule; and the water pump 16 is started in the process of passing through the first straight rail 23.1, the second straight rail 23.2 and the third straight rail 23.3, so that the cooling robot 28 can realize uniform infiltration of cooling water mist on the whole photovoltaic solar panel array 21 after completely walking through the whole water trough rail 23, and the effect of forced cooling is achieved.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (3)
1. Photovoltaic module cooling system based on internet of things, its characterized in that: comprises a horizontal table (29), wherein a photovoltaic solar panel array (21) is arranged above the horizontal table (29); the photovoltaic solar panel array (21) at least comprises a first row of photovoltaic solar panels (21.1), a second row of photovoltaic solar panels (21.2), a third row of photovoltaic solar panels (21.3) and a fourth row of photovoltaic solar panels (21.4) which are distributed in parallel;
a first gap (22.1) is formed between the first row of photovoltaic solar panels (21.1) and the second row of photovoltaic solar panels (21.2), and a second gap (22.2) is formed between the second row of photovoltaic solar panels (21.2) and the third row of photovoltaic solar panels (21.3); a third gap (22.3) is formed between the third row of photovoltaic solar panels (21.3) and the fourth row of photovoltaic solar panels (21.4);
a zigzag trough rail (23) is further arranged below the photovoltaic solar panel array (21) in a zigzag manner, the trough rail (23) comprises a left trough edge (18) and a right trough edge (17), and a zigzag groove (20) is formed between the left trough edge (18) and the right trough edge (17);
a water storage tank (25) is further arranged on one side of the horizontal platform (29), a water storage tank (24) is arranged in the water storage tank (25), the water storage tank (24) is communicated with one end of the groove (20), and the other end of the groove (20) is blocked; the liquid level in the trough (20) is equal to the liquid level in the water storage tank (24); the water replenishing device also comprises a water replenishing pipe (26), and the water outlet end of the water replenishing pipe (26) is communicated with the water storage tank (24);
the water channel rail (23) comprises a first straight rail (23.1), a first bent rail (23.5), a second straight rail (23.2), a second bent rail (23.4) and a third straight rail (23.3) which are sequentially connected end to end; the first straight rail (23.1) is parallel to the first gap (22.1) and is right below the first gap; the second straight rail (23.2) is parallel to the second gap (22.2) right below; the third straight rail (23.3) is parallel to the third gap (22.3) and is right below the third gap;
the cooling robot (28) can walk along the zigzag extending direction of the trough rail (23) and spray cooling water mist to a traveling path, and a water inlet end of the cooling robot (28) can suck water in the trough (20) in real time;
the cooling robot (28) comprises a horizontal cross beam (3), the horizontal cross beam (3) is horizontally arranged above the right groove side (17), and a power supply and control module (10) is fixedly installed on the horizontal cross beam (3); a roller driver (12) is fixedly installed on the lower side of the left end of the horizontal beam (3), the roller driver (12) is connected with two driving wheels (15) in a driving mode, the axes of the two driving wheels (15) are perpendicular to the horizontal plane, and the roller driver (12) can drive the two driving wheels (15) to rotate along the axes;
one side surface of the right groove edge (17) close to the groove (20) is an inner rolling surface (17.1), and one side surface of the right groove edge (17) far away from the groove (20) is an outer rolling surface (17.2); the two driving wheels (15) are in rolling connection with the inner rolling surface (17.1); the lower end of the roller driver (12) is fixedly connected with a supporting seat (14), the bottom end of the supporting seat (14) is provided with a supporting roller (30) in a rolling manner, and the supporting roller (30) is connected with the bottom surface (40) of the groove (20) in a rolling manner;
a vertical water lifting pipe (11) is fixedly arranged at the left end of the horizontal beam (3), the widths of the first gap (22.1), the second gap (22.2) and the third gap (22.3) are all larger than the outer diameter of the water lifting pipe (11),
when the robot cooling robot (28) walks on the first straight rail (23.1), the second straight rail (23.2) and the third straight rail (23.3) respectively, the water lifting pipe (11) vertically penetrates through the first gap (22.1), the second gap (22.2) and the third gap (22.3) respectively;
the water extraction device is characterized in that the top end of the water extraction riser pipe (11) is connected with a spray head (31), spray nozzles (32) are symmetrically arranged at two ends of the spray head (31), a water pump (16) is arranged on the water extraction riser pipe (11), a water suction port (13) is further arranged on one side of the bottom of the supporting seat (14), and the lower end of a lifting channel inside the water extraction riser pipe (11) extends to be communicated with the water suction port (13).
2. The internet of things technology-based photovoltaic module cooling system of claim 1, wherein: a sliding groove (8) is formed in the horizontal cross beam (3) along the length direction, and a sliding block (5) is arranged in the sliding groove (8); a linear push-pull rod motor (7) is fixedly installed at the right end of the horizontal cross beam (3), the tail end of a linear push rod (6) of the linear push-pull rod motor (7) is fixedly connected with the sliding block (5), and the linear push-pull rod motor (7) drives the sliding block (5) to move along the direction of the sliding chute (8) through the linear push rod (6); a thrust sensor is also arranged on the linear push rod (6);
the sliding block (5) is also provided with a vertical bearing hole (9); the device is characterized by also comprising a vertical suspension shaft (4), wherein the upper end of the suspension shaft (4) is in close fit and rotary connection with a bearing hole (9) in the sliding block (5) through a bearing; one side, close to the right groove edge (17), of the lower end of the suspension shaft (4) is connected with a horizontal enclasping wheel frame (2), the enclasping wheel frame (2) is of a structure which is opened in a herringbone mode, two ends of the herringbone of the enclasping wheel frame (2) are respectively in rolling connection with two enclasping wheels (1), and the axes of the two enclasping wheels (1) are perpendicular to the horizontal plane; the two clasping wheels (1) are connected with the outer rolling surface (17.2) in a rolling way;
under the thrust of the linear push rod (6), the right groove edge (17) is always tightly clamped between the driving wheel (15) and the clasping wheel (1), and the rotation of the driving wheel (15) drives the cooling robot (28) to walk along the length extending direction of the right groove edge (17) and further walk along the extending direction of the water groove rail (23).
3. The cooling method of the photovoltaic module cooling system based on the internet of things technology as claimed in claim 2:
a water storage process: rainwater on the photovoltaic solar panel array (21) leaks into the grooves (20) on the first straight rail (23.1), the second straight rail (23.2) and the third straight rail (23.3) through the first gap (22.1), the second gap (22.2) and the third gap (22.3) respectively in rainy days, so that a rainwater storage process in rainy days is realized, and meanwhile, additional water can be supplied through a water supply pipe (26) if cooling is needed;
and (3) natural cooling: the water level in the groove (20) of the whole water groove rail (23) is maintained, a zigzag water channel is formed below the photovoltaic solar panel array (21), and ambient heat is absorbed by utilizing the characteristics of natural evaporation and high specific heat capacity of water in the water channel, so that the primary cooling effect is realized;
robot preparation process: the water level in the control groove (20) is always higher than the water suction port (13); so that the lower end of the water lifting pipe (11) can suck the cooling water in the groove (20) all the time; meanwhile, a linear push rod (6) of a linear push-pull rod motor (7) is controlled to do extension movement, so that the linear push rod (6) presses the sliding block (5) leftwards, the thrust applied to the sliding block (5) by the linear push rod (6) is detected in real time through a thrust sensor, and the magnitude of the thrust of the linear push rod (6) is maintained unchanged in real time; under the linkage effect of the sliding block (5), rolling wheel surfaces of the two clasping wheels (1) tightly press against an outer rolling surface (17.2) of the right groove edge (17), so that the right groove edge (17) is always tightly clamped between the driving wheel (15) and the clasping wheels (1), the integral structure of the cooling robot (28) is always clasped on the right groove edge (17), the cooling robot (28) can be driven to walk along the length extending direction of the right groove edge (17) by the rotation of the driving wheel (15), and the cooling robot (28) can walk along the water groove rail (23) equivalently;
the robot walking and forced cooling photovoltaic solar panel array (21) process: the cooling robot (28) is positioned on the first straight rail (23.1) in the initial state, and the cooling robot (28) is positioned at one end far away from the first curved rail (23.5); then the roller driver (12) drives the two driving wheels (15) to roll, so that the cooling robot (28) makes linear walking motion along the first straight rail (23.1); starting a water pump (16) in the process that a cooling robot (28) does linear walking motion along a first straight rail (23.1), so that the cooling robot (28) sucks cooling water in a groove (20) in real time in the walking process, and then spray nozzles (32) at two ends of a spray head (31) spray water mist to a first row of photovoltaic solar panels (21.1) and a second row of photovoltaic solar panels (21.2) at two sides, and after the cooling robot (28) completely walks the path of the first straight rail (23.1), the first row of photovoltaic solar panels (21.1) and the second row of photovoltaic solar panels (21.2) are uniformly sprayed with the water mist, so that forced cooling of the first row of photovoltaic solar panels (21.1) and the second row of photovoltaic solar panels (21.2) is realized;
in the process that the cooling robot (28) transits from walking on a first straight rail (23.1) to walking on a first bent rail (23.5), a linear push rod (6) of a linear push-pull rod motor (7) is controlled to contract inwards for a certain distance according to the bending radian of the first bent rail (23.5), so that the adaptability of the distance between a driving wheel (15) and a clamping wheel (1) is increased, the cooling robot (28) can transit to the first bent rail (23.5), meanwhile, the thrust applied to a sliding block (5) by the linear push rod (6) is detected in real time through a thrust sensor, the magnitude of the thrust of the linear push rod (6) is kept unchanged in real time, and the integral structure of the cooling robot (28) is still in a state of always clamping the right groove edge (17) in the process of the first bent rail (23.5); the roller driver (12) continuously drives the two driving wheels (15) to roll, so that the cooling robot (28) walks along the first curved rail (23.5), and the water pump (16) is closed in the process that the cooling robot (28) walks along the first curved rail (23.5);
in the process that the cooling robot (28) transits from walking on the first curved rail (23.5) to walking on the second straight rail (23.2), a linear push rod (6) of a linear push-pull rod motor (7) is controlled to extend for a certain distance in an adaptive manner, so that the adaptive manner of the distance between a driving wheel (15) and an enclasping wheel (1) is reduced, the situation that the driving wheel (15) is separated from an inner rolling surface (17.1) to idle when the cooling robot (28) transits to the second straight rail (23.2) is avoided, meanwhile, the thrust applied to a sliding block (5) by the linear push rod (6) is detected in real time through a thrust sensor, the magnitude of the thrust of the linear push rod (6) is maintained unchanged in real time, and the integral structure of the cooling robot (28) is still in a state of always enclasping the right groove side (17) in the process of the second straight rail (23.2); the roller driver (12) continues to drive the two driving wheels (15) to roll; the cooling robot (28) sequentially passes through the first straight rail (23.1), the first bent rail (23.5), the second straight rail (23.2), the second bent rail (23.4) and the third straight rail (23.3) according to the rule; and the water pump (16) is started in the process of passing through the first straight rail (23.1), the second straight rail (23.2) and the third straight rail (23.3), so that the cooling robot (28) can realize uniform infiltration of cooling water mist of the whole photovoltaic solar panel array (21) after completely walking through the whole water trough rail (23), and the effect of forced cooling is achieved.
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| KR101038243B1 (en) * | 2008-12-29 | 2011-05-31 | 유흥수 | Solar array caring apparatus moving on track with reciprocation |
| CN104205622A (en) * | 2012-03-30 | 2014-12-10 | 法国圣戈班玻璃厂 | Photovoltaic module with cooling device |
| CN203933534U (en) * | 2014-06-17 | 2014-11-05 | 保利协鑫（苏州）新能源运营管理有限公司 | A kind of cooling system of solar components |
| CN204131458U (en) * | 2014-09-26 | 2015-01-28 | 浙江工业大学 | A kind of solar panel cleaning Vehicle with waste water reclaiming device |
| CN205183207U (en) * | 2015-09-17 | 2016-04-27 | 中国船舶重工集团公司第七一三研究所 | Intelligent photovoltaic array washs car |
| KR101677927B1 (en) * | 2016-05-02 | 2016-11-21 | 주식회사 디투엔지니어링 | Solar cell array having a snow removal |
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